JPH09172743A - Coupler coupling device of charger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a positioning device of a charger which can perform the charge work simply and quickly without needing a high level of operation technique. SOLUTION: A coupler 43 on power sending side is supported by a coupler coupling device 31, and it is coupled with a coupler 25 on power reception side by the driving force of an electric vehicle 11. The coupler 43 on power transmission side is supported capably of shifting in backward and forward direction of the electric vehicle 11, and it is supported capably of shifting in height direction of the electric vehicle 11 by a guide pipe. Moreover, the coupler 43 on power transmission side is supported capably of vertical rotation in width direction of the electric vehicle 11, and supported capably of horizontal rotation by a second rubber suspension, and is supported capably of vertical rotation in the backward and forward direction of the electric vehicle 11 by a third rubber suspension.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupler coupling device for a charging device.

[0002]

2. Description of the Related Art A charging device is indispensable to an electric vehicle, and widespread use of the charging device leads to widespread use of the electric vehicle. Therefore, a charging device that is easier to handle is desired.

Conventionally, a technique for making a charging device easier to handle is disclosed in, for example, Japanese Patent Laid-Open No. 63-87136.
Japanese Patent Laid-Open No. 3-155388 and Japanese Utility Model Laid-Open No. 1-79
Various proposals have been made in Japanese Patent No. 343, etc.

In the charging device described in Japanese Patent Laid-Open No. 63-87136, a car stop is installed at a predetermined position such as a garage and the vehicle tire is brought into contact with the car stop to stop the electric vehicle. The contact of the car stop means that the power receiving side electromagnetic coil on the vehicle side and the power transmitting side electromagnetic coil installed on the floor of the garage face each other. Then, when the car is backed up and the vehicle tire comes into contact with the car stop,
The detection device detects the state, and the charging device is automatically driven based on the detection result. That is, the driver does not have to connect the connector for charging the charging device to the connector on the automobile side.

In the charging device described in Japanese Patent Laid-Open No. 3-155388, a magnetic body around which an electromagnetic coil is wound is installed on the ground side, and a magnetic body around which the electromagnetic coil is wound is installed on the automobile side. . Then, the automobile is driven so that the magnetic substance installed in the automobile comes into contact with the magnetic substance on the ground side. When both magnetic bodies come into contact with each other, the detector detects the contact. Based on the detection result, the charging device applies a current to the electromagnetic coil wound around the magnetic body on the ground side to start the charging operation. Also in this case, the driver does not need to connect the connector for charging the charging device to the connector on the automobile side.

Further, in the charging device disclosed in Japanese Utility Model Laid-Open No. 1-79343, a ground core coil is laid on the floor surface, a vehicle core coil is provided on the lower surface of the automobile, and the automobile is stopped at a predetermined position. When the vehicle stops at a predetermined position, the proximity switch installed in advance detects that it has stopped at the charging position. Based on the detection result, the charging device applies a current to the ground core coil to start the charging operation. Also in this case, the driver does not need to connect the connector for charging the charging device to the connector on the automobile side.

[0007]

However, in each of the above charging devices, the driver operates the steering wheel to guide the charging position, that is, the position where the ground side electromagnetic coil and the vehicle side electromagnetic coil face each other. The driver had to move the car, and the tolerance of the stop position was small, so the driver's advanced driving technique was required, which was very troublesome. Therefore, the charging work requires labor and time, and the charging work cannot be performed quickly.

An object of the present invention is to provide a positioning device for a charging device, which can perform a charging operation simply and quickly without requiring a high level driving technique.

[0009]

In order to solve the above problems, the invention according to claim 1 is provided in a parking place of a vehicle and is provided in the vehicle with respect to a power transmission side coupler installed on the ground side. A coupler coupling device of a charging device for coupling both couplers to supply electric power for charging a battery mounted on a vehicle through both couplers by electromagnetic induction generated in the power receiving side coupler, The gist of the present invention is that the power transmission side coupler is movably and rotatably supported, and the coupler support means is provided to correct the relative deviation between the power reception side coupler and the power transmission side coupler when the power transmission side coupler is coupled to the power transmission side coupler.

According to a second aspect of the present invention, in the coupler coupling device of the charging device according to the first aspect, the coupler supporting means supports the power transmission side coupler so as to be movable in the front-rear direction and the height direction of the vehicle. In addition, the present invention is rotatably supported in the horizontal and vertical directions, and is moved and rotated by the driving force of the vehicle to correct the relative displacement between the couplers.

[0011] The invention described in claim 3 is the invention according to claim 1 or 2.
In the coupler coupling device of the charging device described in (3), the coupler support means is capable of moving the power transmission side coupler in the vehicle height direction, and first movement means for supporting the power transmission side coupler in the vehicle front-rear direction. Second moving means supported by
First rotation support means for supporting the power transmission side coupler so as to be vertically rotatable along the vehicle width direction, second rotation support means for horizontally supporting the power transmission side coupler, and the power transmission side And a third rotation support means for supporting the coupler so as to be vertically rotatable along the vehicle front-rear direction, wherein the first and second moving means are relative to the power reception side coupler with respect to the power transmission side coupler. The gist is that the positional deviation is corrected, and the first to third rotation supporting means correct the relative angular deviation of the power transmission side coupler with respect to the power reception side coupler.

According to a fourth aspect of the present invention, in the coupler coupling device of the charging device according to any one of the first to third aspects, the power receiving side coupler has a vehicle width with respect to the power transmitting side coupler. The gist of the invention is that it is formed to be large in the direction, and the deviation in the vehicle width direction is allowed.

According to a fifth aspect of the present invention, in the coupler coupling device of the charging device according to any one of the first to third aspects, the power receiving side coupler is arranged in a vehicle width with respect to the power transmitting side coupler. The gist of the invention is that it is formed to be small in the direction, and the deviation in the vehicle width direction is allowed.

According to a sixth aspect of the present invention, in the coupler coupling device for a charging device according to any one of the third to fifth aspects, the front-rear direction supporting means directs the power transmission side coupler in a direction toward a vehicle. The main point is that it was urged to.

According to a seventh aspect of the present invention, in the coupler coupling device of the charging device according to any one of the first to sixth aspects, the power receiving side coupler is provided above and below the power receiving side coupler. The gist is that the vehicle-side guide that engages with the ground-side guide disposed in the position and moves the power transmission-side coupler in the height direction is provided.

According to an eighth aspect of the present invention, in the coupler coupling device for a charging device according to any one of the first to seventh aspects, a wheel stopper is provided on the floor surface of the parking place of the vehicle. The coupler supporting means is configured so that the wheels of the vehicle are parked so as to substantially contact the wheel stoppers to couple the power transmission side coupler and the power reception side coupler.

According to a ninth aspect of the present invention, in the coupler coupling device of the eighth aspect of the present invention, the vehicle can be coupled to the power receiving side coupler and the power transmitting side coupler to the floor surface of the parking place. The gist is that guide means for guiding the vehicle to the position is laid and the vehicle is parked so that the wheels come into contact with the wheel stopper along the guide means.

Therefore, in the invention described in claim 1, the power transmission side coupler is movably and rotatably supported by the coupler supporting means, and when the power reception side coupler is coupled with the power transmission side coupler, both couplers are coupled. Relative displacement is corrected.

According to a second aspect of the invention, the power transmission side coupler is supported so as to be movable in the front-rear direction and the height direction of the vehicle, and is also supported so as to be rotatable in the horizontal and vertical directions. Is moved and rotated by the to correct the relative displacement between both couplers.

According to the third aspect of the invention, in the coupler supporting means, the power transmission side coupler is supported by the first moving means so as to be movable in the vehicle front-rear direction, and the second moving means can move in the vehicle height direction. Supported by. The power transmission side coupler is vertically rotatably supported by the first rotation support means along the vehicle width direction, horizontally supported by the second rotation support means, and third rotation support means. It is supported by the vehicle so as to be vertically rotatable along the longitudinal direction of the vehicle. First and second
Of the moving means corrects a relative positional deviation of the power transmission side coupler with respect to the power receiving side coupler, and the first to third rotation support means corrects a relative angular deviation of the power transmission side coupler with respect to the power receiving side coupler. It

According to the fourth aspect of the present invention, the power receiving side coupler is formed larger than the power transmitting side coupler in the vehicle width direction, and the shift in the vehicle width direction is allowed. In the invention according to claim 5, the power receiving side coupler is formed smaller than the power transmitting side coupler in the vehicle width direction, and the shift in the vehicle width direction is allowed.

According to the sixth aspect of the invention, the power transmission side coupler is biased in the direction toward the vehicle by the front-rear direction supporting means, and the positional deviation in the vehicle front-rear direction is corrected. In the invention according to claim 7, the vehicle-side guides provided above and below the power receiving side coupler and the ground side guides provided above and below the power transmitting side coupler are engaged to move the power transmitting side coupler in the height direction. Is
The positional deviation of both couplers in the height direction is corrected.

According to the eighth aspect of the present invention, a wheel stopper is provided on the floor surface of the parking place for the vehicle, and the coupler supporting means is provided when the vehicle wheels are parked so that the wheels substantially contact the wheel stopper. Since the power receiving side coupler is coupled with the power receiving side coupler, no advanced driving technique is required.

According to a ninth aspect of the present invention, guide means for guiding the vehicle to a position where the power receiving side coupler and the power transmitting side coupler can be coupled is laid on the floor of the parking place, and the guide means is provided along the guide means. If the vehicle is parked so that the wheels come into contact with the wheel stops, both couplers will be connected and no advanced driving technique will be required.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, a ground side charging device 13 is provided in a garage 12 as a parking place for parking an electric vehicle 11 as a vehicle.

The electric vehicle 11 is equipped with a battery 21, and the electric power stored in the battery 21 is used to drive and control a motor (not shown) to rotate the wheels 22 in the forward and reverse directions so that the electric vehicle 11 travels forward or backward. It is supposed to do. The rear bumper 23 of the electric vehicle 11 includes a housing recess 24 along the left-right direction (the left-right direction of the vehicle).
And a power receiving side coupler 25 forming a part of a vehicle side charger for charging the battery 21 of the electric vehicle 11 is provided in the recess 24.

The power receiving side coupler 25 comprises a power receiving side core 26 and a power receiving side electromagnetic coil 27. As shown in FIG. 2, the power receiving side core 26 is formed to have a T-shaped vertical cross section,
It is attached to the center of the side surface of the accommodation recess 24 along the vehicle width direction. The power receiving side electromagnetic coil 27 is long in the vehicle width direction,
It is a coil that is short in the vertical direction and is attached to the power receiving side core 26.

Vehicle side guides 28 and 29 are provided above and below the power receiving side coupler 25, respectively. The vehicle side guides 28, 29 are cut from the vicinity of the tip of the power receiving side core 26 toward the open end of the accommodation recess 24, and slopes 28 a, 2
9a are formed.

The electric vehicle 11 has a vehicle-side communication device B.
1 is mounted. The vehicle-side communication device B1 transmits to the ground-side charging device 13 the detected electric power (charge storage amount) accumulated in the battery 21, the charging voltage as a secondary voltage due to the induced electromotive force generated in the power-receiving electromagnetic coil 27, and the like. Used to do.

The ground charging device 13 comprises a coupler coupling device 31 as a coupler supporting means and a control device 32. 3 is a plan view of the coupler coupling device 31, FIG. 4 is a side view of the coupler coupling device 31, and FIG. 5 is a coupler coupling device 3
1 is a side view from the rear of FIG. 1, and FIG. 6 is a side view showing the relationship between the electric vehicle 11 and the coupler coupling device 31.

As shown in FIGS. 3 to 5, the coupler coupling device 31 is provided with a slider 33 as a first moving means. The slider 33 includes a fixed portion 33a and a movable portion 3
The fixed portion 33a is fixed to the floor surface of the garage 13 so that the movable portion 33b moves in the vehicle front-rear direction. The movable portion 33b is always urged forward by an urging means such as a spring (not shown).

A pillar 34 is erected on the upper surface of the movable portion 33b. A first connecting plate 35 is provided in the state of the column 34. The first connecting plate 35 is arranged along the vehicle width direction. Guide pipes 36 a and 36 b as second moving means are provided on the first connecting plate 35.
Are arranged on both the left and right sides of. Guide pipes 36a, 3
6b is supported slidably in the vehicle height direction. The upper ends of the guide pipes 36a and 36b are connected by a second connecting plate 37. The second connecting plate 37 is movable in the vehicle height direction by the guide pipes 36a and 36b. As shown in FIG. 5, a coil spring 38 as a second moving means and a holding means is interposed between the second connecting plate 37 and the first connecting plate 35, and the elastic force of the coil spring 38 causes the coil spring 38 to move. The second connecting plate 37 is held at a predetermined height.

On the upper surface of the second connecting plate 37, a first rubber suspension 39 as a first rotation supporting means is attached. A third connecting plate 40 extending in the vertical direction is attached to the front of the first rubber suspension 39. A second rubber suspension 41 serving as a second rotation support means is attached to the front surface of the third connecting plate 40, and a third rotation support means is provided above the second rubber suspension 41. The third rubber suspension 42 is attached. The power transmission side coupler 43 is supported on the front surface of the third rubber suspension 42.

The first rubber suspension 39 rotatably supports the third connecting plate 40 about an axis in the vehicle approach direction (vehicle front-rear direction) (hereinafter referred to as the Y axis). A power transmission side coupler 43 is supported on the third connecting plate 40 via second and third rubber suspensions 41 and 42. Therefore, the first rubber suspension 3
9 supports the power transmission side coupler 43 rotatably around the Y axis. At this time, the direction in which the power transmission side coupler 43 rotates is θx.

The second rubber suspension 41 supports the third rubber suspension 42 horizontally rotatable about an axis in the vehicle height direction (hereinafter referred to as the Z axis). The power transmission side coupler 43 is supported by the third rubber suspension 42. Therefore, the second rubber suspension 41 supports the power transmission side coupler 43 so as to be horizontally rotatable around the Z axis. At this time, the direction in which the power transmission side coupler 43 rotates is θz.

The third rubber suspension 42 rotatably supports the power transmission side coupler 43 about an axis in the vehicle width direction (hereinafter referred to as X axis). At this time, the direction in which the power transmission side coupler 43 rotates is θy.

Therefore, the power transmission side coupler 43 is connected to the slider 3
3 is movably supported in the vehicle front-rear direction and is urged forward of the vehicle. The power transmission side coupler 43 is movably supported by the guide pipes 36a and 36b in the vehicle height direction, and is held at a predetermined height by a coil spring 38. The predetermined height is set to a height that substantially matches the height of the power receiving side coupler 25 provided in the electric vehicle 11. Further, the power transmission side coupler 43 is provided in the first to third rubber suspensions 3.
9, 41, 42 depending on vehicle approach direction, vehicle height direction,
Also, it is rotatably supported in the vehicle width direction, that is, in the θx, θy, and θz directions.

The power transmission side coupler 43 is composed of a power transmission side core 44 and a power transmission side electromagnetic coil 45. Then, the power transmitting side coupler 43 and the power receiving side coupler 25, that is, the power transmitting side core 44 and the power transmitting side electromagnetic coil 45, the power receiving side core 26 and the power receiving side electromagnetic coil 27 are coupled to each other, and the electric power flowing to the power transmitting side electromagnetic coil 45 is coupled. By supplying the charging voltage due to the induced electromotive force generated in the power receiving side electromagnetic coil 27 to the battery 21, the battery 21 can be charged.

The power transmission side core 44 is formed in a C-shape in vertical section and is arranged so as to extend in the vehicle width direction. The length of the power transmitting side core 44 in the vehicle height direction is formed to be substantially the same as the length of the power receiving side core 26 in the vehicle height direction.
It is formed slightly narrower than the width between 8 and 29. Also,
The length of the power transmitting side core 44 in the vehicle width direction is equal to the power receiving side core 26.
Is formed longer than the length in the vehicle width direction and shorter than the length in the vehicle width direction of the accommodation recess 24.

Therefore, when the power-transmitting-side coupler 43 and the power-receiving-side coupler 25 are coupled, the power-transmitting-side core 44 is located inside the accommodation recess 24, and the vehicle-side guides 28, 2 extend in the vehicle height direction.
It is inserted between 9. Further, even if the electric vehicle 11 is slightly displaced in the vehicle width direction, the power transmission side core 44 is formed shorter than the accommodation recess 24, so that the power transmission side core 44 can be inserted into the accommodation recess 24. That is, the electric vehicle 11
Deviation in the vehicle width direction is allowed.

The power transmission side electromagnetic coil 45 has a rectangular frame shape, and is formed in a size capable of accommodating the power reception side electromagnetic coil 27 in the frame. In addition, the power transmission side electromagnetic coil 45
Is formed to have a space in the vehicle width direction when the power receiving side electromagnetic coil 27 is housed. Therefore, even if the electric vehicle 11 is slightly displaced in the vehicle width direction, the power receiving side electromagnetic coil 27 is accommodated in the frame of the power transmitting side electromagnetic coil 45. When a constant current is applied to the power transmitting electromagnetic coil 45, the power receiving electromagnetic coil 27 has the same size regardless of the position of the power receiving electromagnetic coil 27 housed in the frame of the power transmitting electromagnetic coil 45. The induced electromotive force is generated and the secondary voltage of the same voltage is output.

That is, even if the electric vehicle 11 is displaced in the vehicle width direction, the power transmission side coupler 43 and the power reception side coupler 25 are sufficiently coupled to each other, so that a deviation in the vehicle width direction is allowed. Further, even if the electric vehicle 11 shifts in the vehicle width direction, the electrical characteristics of the power transmission side coupler 43 and the power reception side coupler 25 do not change.

Ground-side guides 46 and 47 are provided at the upper and lower ends of the third connecting plate 40, respectively. The ground side guides 46 and 47 are arranged above and below the power transmission side coupler 43, respectively. Further, the ground side guides 46, 47 are arranged so as to extend toward the front side, and the tips thereof are protruded forward of the power transmission side coupler 43.

As shown in FIGS. 1 and 2, the control device 32 is provided with a power supply device 51 and a ground communication device B2. The power supply device 51 is used to supply power to the power transmission side coupler 43. The ground communication device B2 is used to communicate data and the like with the vehicle communication device B1 provided in the electric vehicle 11.

Garage 1 for parking this electric vehicle 11
2, a pair of left and right wheel stoppers 52 for defining the position of the wheels 22 of the electric vehicle 11 is provided at the rear portion thereof, and a pair of left and right slopes 53 is provided in front of the wheel stopper 52. The slope 53 is the rear wheel 22 of the electric vehicle 11.
When the vehicle gets over the slope 53, the accommodation recess 2
The open end of No. 4 is formed at a position substantially matching the front end of the power transmission side coupler 43.

On the floor surface 12a of the garage 12, a pair of left and right guide pipes 54 as guide means are provided upright. The guide pipe 54 is composed of a plurality of (four in the present embodiment) roller guides 55, and is arranged inside the slopes 53 along the approaching direction of the automobile 11 (front-rear direction of the vehicle). Left and right roller guides 55
The width between them is arranged narrower than the width inside the left and right wheels 22. Further, the two roller guides 55 are arranged so that the front left and right two are inclined inward.

The guide pipe 54 is used to guide the electric vehicle 11 to the charging position. What is the charging position?
The rear wheel 22 of the electric vehicle is almost in front of the wheel stopper 52,
The position where at least one rear wheel 22 abuts the wheel stopper 52. At this charging position, the power transmission side coupler 43 and the power reception side coupler 25 are sufficiently coupled. Therefore, the charging device 13 can efficiently supply electric power to the electric vehicle 11.

That is, when the left and right rear wheels 22 contact the guide pipe 54 when the electric vehicle 11 is parked, the rear wheels 22
Are moved in the left-right direction along the guide pipe 54, and are respectively guided substantially in front of the wheel stopper 52. Then, the electric vehicle 11 is guided by the guide pipe 54 to a position where at least one rear wheel 22 abuts on the wheel stopper 52. That is, the guide pipe 54 corrects the position of the electric vehicle 11 in the left-right direction. The position in the left-right direction is corrected, and the position of the electric vehicle 11 when at least one rear wheel 22 contacts the wheel stop 52 is set as the charging position.

Next, the electrical configuration relating to the charging of the electric vehicle 11 and the electrical configuration of the charging device 13 will be described. As shown in FIG. 7, the electric vehicle 11 is provided with a vehicle-side controller 61. The vehicle-side controller 61 is connected to the vehicle-side communication device B1, and the communication device B1
Signals are transmitted and received to and from the ground communication device B2 via the. The memory 6 is provided in the vehicle-side controller 61.
1a is provided, and the memory 61a stores a predetermined vehicle-side ID code, a control program for communication and the like. The vehicle-side controller 61 reads the ID code stored in the memory 61a and displays I indicating the ID code.
The D signal is transmitted via the vehicle-side communication device B1.

The vehicle controller 61 is connected to the battery 21 and inputs the voltage (charge amount) of the battery 21. Further, the vehicle-side controller 61 uses the power receiving-side coupler 25.
The charging voltage, which is a secondary voltage generated in the power receiving side electromagnetic coil 27, is connected to the power receiving side electromagnetic coil 27. Furthermore, the vehicle controller 61 detects the state of a shift lever (not shown). Then, the vehicle-side controller 61 transmits the input voltage of the battery 21, charging voltage and the like via the vehicle-side communication device B1.

The controller 32 includes a ground side controller 62.
Is provided. The ground-side controller 62 is provided with a memory 62a, and the ground-side controller 62 can store various data in the memory 62a.
The ground controller 62 is connected to a ground communication device B2 capable of communicating with the vehicle communication device B1.

A power supply device 51 is connected to the ground controller 62. The power transmission side coupler 43 is connected to the power supply device 51. The power supply device 51 includes a power supply circuit 63 that supplies power to the power transmission side electromagnetic coil 45 of the power transmission side coupler 43 for charging and position detection, and a current detection circuit 64 that detects the value of the current output from the power supply circuit 63. Is equipped with. That is, the current detection circuit 64 is connected to the power supply circuit 63, and each power supply circuit 63 and the current detection circuit 64 are connected to the ground controller 62.

The power supply circuit 63 includes a charging power supply composed of an AC power supply for charging the battery 21, and a power receiving side coupler 25.
The power transmission side electromagnetic coil 45 of the power transmission side coupler 43 can be supplied with two types of power supplies, that is, a check power supply including an AC power supply that is output to confirm the coupling state between the power transmission side coupler 43. Then, each of these power supplies is selected based on a command signal from the ground side controller 62 according to the state of charging work. That is, the ground controller 6
In the charging operation, 2 outputs a command signal to the power supply circuit 63 and supplies the charging power supply or the checking power supply to the power transmission side coupler 43.

Next, the charging device 13 configured as described above.
The operation of will be described. Usually, the driver drives the electric vehicle 11 to enter the garage 12 in the back (backward traveling), and parks the rear wheel 22 at a position where the rear wheel 22 abuts on the wheel stopper 52.
At this time, the coupler coupling device 31 holds the front end of the power transmission side coupler 43 at a position that substantially coincides with the opening end of the housing recess 24 of the electric vehicle 11 when the vehicle is over the slope 53. Therefore, as shown in FIG.
When the electric vehicle 1 is brought into contact with the electric vehicle 1,
1, the electric vehicle 11 is pushed backward by the backward force of the electric vehicle 11 and is moved backward by the slider 33.

At this time, when the vehicle height of the electric vehicle 11 is changed by the occupant due to the loaded luggage or the like, the ground side guides 46 and 47 engage with the vehicle side guides 28 and 29. Then, the slopes 28a, 2 of the vehicle side guides 28, 29
9a moves the ground side guides 46 and 47 in the vehicle height direction. As a result, the power transmission side coupler 43 is connected to the vehicle side guide 2
Since the power transmission side coupler 43 and the power reception side coupler 25 are inserted between 8 and 29, the relative displacement in the vehicle height direction is corrected.

Further, even if the vehicle height of the electric vehicle 11 changes due to an occupant getting on and off or loading and unloading after parking the electric vehicle 11, the power transmission side coupler 43 is
Since it is inserted between the vehicle side guides 28 and 29, the coupling between the power transmission side coupler 43 and the power reception side coupler 25 is maintained.

Further, when the electric vehicle 11 is tilted and parked, the power transmission side coupler 43 responds to the tilt of the electric vehicle 11 by the backward movement force of the electric vehicle 11 by the first to third rubber suspensions 39, 41 and 42. Θx, θ
It rotates in the y and θz directions. As a result, the power transmission side coupler 43
Since the power receiving side coupler 25 is sufficiently coupled with the power receiving side coupler 25, the inclination of the electric vehicle 11, that is, the relative angular deviation is corrected.

When the electric vehicle 11 shifts in the vehicle width direction and enters (reverses) the garage 12, the electric vehicle 1
The roller guide 5 in which the rear wheel 22 of the vehicle 1 is obliquely arranged
Contact 5 Then, when the vehicle is further moved backward, the rear wheels 22
Travels in the direction opposite to the vehicle width direction deviation along the roller guide 55, and is guided in front of the wheel stopper 52 by the roller guide 55 arranged along the approach direction. That is, in the electric vehicle 11, the relative displacement in the vehicle width direction is corrected by the guide pipe 54. As a result, the driver does not have to drive the wheels 22
Can be easily brought into contact with the wheel stopper 52.

At this time, the center of the power-receiving-side coupler 25 and the center of the power-transmitting-side coupler 43 do not coincide with each other and deviate. However, the power transmission side electromagnetic coil 45 of the power transmission side coupler 43 is formed longer in the left-right direction than the power reception side electromagnetic coil 27 of the power reception side coupler 25. Therefore, the receiving side coupler 25
Even if the center of the power transmission side coupler 43 is deviated, the power reception side electromagnetic coil 27 is inserted into the power transmission side electromagnetic coil 45, so that the power reception side coupler 25 and the power transmission side coupler 43 are sufficiently coupled and the electric vehicle 11 Relative displacement in the vehicle width direction is corrected.

When the parking operation in the garage 12 is completed as described above, the driver sets a predetermined operation, for example, the driving range of the electric vehicle 11 to the parking range (hereinafter referred to as the P range). Then, the vehicle-side controller 61
Transmits a status signal indicating the status of the electric vehicle 11 via the vehicle-side communication device B1. This state signal includes a P-range signal indicating that the electric vehicle 11 is stopped and an ID stored in advance for identifying the electric vehicle 11 of its own.
It includes an ID signal indicating a code, a charge state signal indicating the charge state (charge amount) of the battery 21, and the like.

When the status signal from the vehicle-side communication device B1 is input via the ground-side communication device B2, the ground-side controller 62 starts the charging operation according to the flowchart shown in FIG. First, in S1, the ground side controller 62
Determines whether the parked electric vehicle 11 is a designated vehicle (designated vehicle) that may be parked in the pre-registered garage 12 based on the input state signal.
The ID signal included in the status signal is used for this determination. That is, the ground-side controller 62 compares the vehicle-side ID code indicated by the input ID signal with the ground-side ID code stored in advance in the memory 62a. If both ID codes match, the ground-side controller 62 determines that the parked electric vehicle 11 is a designated vehicle, and proceeds to S2. On the other hand, when the ID codes do not match, the ground-side controller 62 waits for the authorized designated vehicle to be parked in S1, assuming that the parked electric vehicle 11 is not the designated vehicle.

Next, in S2, the ground-side controller 62 determines whether or not the battery of the parked electric vehicle 11 needs to be charged based on the status signal input via both the communication devices B1 and B2. A charge state signal indicating the charge state (charge amount) of the battery 21 is used for this determination.
That is, the ground-side controller 62 uses the input battery 2
If the charged amount of 1 is equal to or greater than a predetermined reference value, it is determined that there is no charging request, that is, charging of the battery 21 is not necessary, and the charging operation is ended. On the other hand, the input battery 2
If the storage amount of 1 is less than the reference value, the ground side controller 6
No. 2 determines that there is a charging request, that is, it is necessary to charge the battery 21, and the process proceeds to the next S3.

In S3, the ground-side controller 62 transmits a start signal to the vehicle-side controller 61 via the ground-side communication device B2 and the vehicle-side communication device B1, and the process proceeds to S4. When the vehicle-side controller 61 inputs the start signal, the vehicle-side controller 61 stores the amount of electricity stored in the battery 21 and the power-receiving-side electromagnetic coil
The secondary voltage (charging voltage) flowing through 7 is monitored, and the amount of stored electricity and the charging voltage are transmitted to the ground-side controller 62 via both communication devices B1 and B2.

In S4, the ground-side controller 62 drives and controls the power supply circuit 63 to output the checking power supply to the power transmission side coupler 43 (power transmission side electromagnetic coil 45). Then, in S5, the ground-side controller 62 checks the output voltage. That is, the ground side controller 62
Compares the charging voltage transmitted from the vehicle-side controller 61 with a predetermined specified voltage. Power receiving side coupler 2
5 and the coupler 43 on the power transmission side are correctly coupled,
The charging voltage will be the specified voltage or higher. Therefore, when the charging voltage is equal to or higher than the specified voltage, the ground-side controller 62 determines that the couplers 25 and 43 are properly coupled, and S5
To S6.

At S6, the ground-side controller 62
Starts charging. That is, the ground side controller 62
Controls the power supply circuit 63 to supply the power supply for charging to the power transmission side coupler 43 from the power supply circuit 63. Then
In the power receiving side electromagnetic coil 27 of the power receiving side coupler 25, a secondary voltage (charging voltage) is generated by the induced electromotive force. By supplying the charging voltage to the battery 21, the battery 21 is charged.

At the time of this charging, in S7, the ground-side controller 62 monitors the current flowing through the power-reception-side and power-transmission-side electromagnetic coils 45 and the voltage applied to the coils 45. In this case, the secondary current flowing in the power receiving side electromagnetic coil 27 and the applied voltage are input from the vehicle to the ground side controller 62 via the vehicle side communication device B1 and the ground side communication device B2. And the ground side controller 6
2 controls the charging operation state (charging control) based on the secondary current or the like. For example, the ground-side controller 62 controls the current flowing through the power transmission side electromagnetic coil 45 or the voltage applied to the coil 45 so that the current flowing through the power receiving side electromagnetic coil 27 is always constant.

Then, in S8, the ground side controller 6
2 determines whether or not a charging completion signal indicating that charging of the battery has been completed is output from the vehicle-side communication device B1. That is, if the charging completion signal is not output, the ground controller 62 returns to S7 and continues the charging work. On the other hand, when the charging completion signal is output, the ground side controller 62 determines that the charging is completed, and ends the charging work.

By the way, in S5, when the output voltage (charging voltage) is checked, the output voltage may not reach the specified voltage. In this case, for example, the electric vehicle 1
1 is tilted and parked, and the tilt cannot be corrected by the coupler coupling device 31. At this time, since the power receiving side coupler 25 and the power transmitting side coupler 43 are not correctly coupled, even if the charging power source is supplied, both couplers 25, 43 are connected.
The loss is large due to the coupling portion of, and a sufficient voltage for charging the battery 21 cannot be obtained.

In this case, the ground-side controller 62 uses the S
Then, the process proceeds from S5 to S9 to request the electric vehicle 11 to be put in the garage again, and the charging operation is suspended. The driver puts the electric vehicle 11 into the garage again based on the request to put the garage into the garage again. The ground-side controller 62 requests S1
And wait for the electric vehicle 11 to stop again,
When the electric vehicle 11 is stopped again, the charging work is restarted. By this re-garage entry, charging due to insufficient coupling of both couplers 25 and 43 can be prevented, and battery 21 can be sufficiently charged.

Therefore, according to this embodiment, the following effects are obtained. (1) A guide pipe 54 is laid on the floor of the garage 12, and the guide pipe 54 guides the electric vehicle 11 so that the rear wheel 22 of the vehicle 11 abuts on a wheel stop 52 provided in the garage 12. . As a result, the rear wheel 22 can be easily brought into contact with the wheel stopper 52 without requiring the driver to have a high level of driving technique.

(2) The power transmission side coupler 43 is biased forward by the slider 33 arranged in the vehicle front-rear direction and held at a predetermined height by the guide pipes 36a, 36b and the coil spring 38. And electric car 1
The vehicle-side guides 2 arranged above and below the power receiving side coupler 25 push the power transmitting side coupler 43 rearward by the force of 1 to move backward.
8 and 29, the ground side guides 46 and 47 are moved in the vertical direction so that the power receiving side coupler 25 and the power transmitting side coupler 43 are coupled. As a result, the relative displacement of the electric vehicle 11 in the vehicle height direction is corrected, and the power receiving side coupler 2
5 and the power transmission side coupler 43 can be sufficiently coupled.

(3) The power transmission side coupler 43 is rotatably supported by the first to third rubber suspensions 39, 41, 42 in the vehicle front-rear direction, the vehicle height direction, and the vehicle width direction. Then, the power transmission side coupler 43 is rotated according to the inclination of the electric vehicle 11 by the force of the backward movement of the electric vehicle 11. As a result, electric vehicles 11
Is corrected, that is, the relative angular deviation is corrected, and the power receiving side coupler 25 and the power transmitting side coupler 43 can be sufficiently coupled.

(4) Since the power transmission side electromagnetic coil 45 is formed longer than the power reception side electromagnetic coil 27 in the vehicle width direction, even if the electric vehicle 11 is displaced in the vehicle width direction, the power transmission side electromagnetic coil 45 is provided in the power reception side electromagnetic coil 45. Since the electromagnetic coil 27 can be inserted, the relative displacement in the vehicle width direction is corrected, and the power transmission side coupler 43 and the power reception side coupler 25 can be sufficiently coupled.

(5) Power receiving side coupler 25 and power transmitting side coupler 4
Since the coupling with 3 is performed by the backward force of the electric vehicle 11, the coupler coupling device 31 side does not need a driving force, and the configuration of the coupler coupling device 31 can be simplified.

(6) Supply power for checking to the power-transmitting-side coupler 43, start charging when the output voltage output from the power-receiving-side coupler 25 is equal to or higher than the specified voltage, and park the vehicle when the output voltage is equal to or lower than the specified voltage. I made a request again. When the output voltage from the power receiving side electromagnetic coil 27 is less than or equal to the specified voltage,
The coupling between the power transmission side coupler 43 and the power reception side coupler 25 is insufficient. As a result, it is possible to prevent charging due to insufficient coupling.

The present invention may be carried out as follows in addition to the above embodiment. (1) In the above embodiment, the power receiving side coupler 25 is provided in the housing recess 24 formed in the rear bumper 23 of the electric vehicle 11. However, the housing recess 24 is formed in the front bumper, and the power receiving is performed in the housing recess 24. The side coupler 25 may be provided and implemented.
In this case, the driver parks the garage 12 by traveling forward. Therefore, the wheel 22 can be brought into contact with the wheel stopper 52 more easily.

(2) In the above embodiment, the power transmission side electromagnetic coil 45 is formed longer than the power reception side electromagnetic coil 27 in the vehicle width direction. You may implement it by forming long in the width direction. In this case, the power transmission side electromagnetic coil 45 is inserted into the power reception side electromagnetic coil 27, and the power reception side coupler 25 and the power transmission side coupler 43 are coupled.

(3) In the above embodiment, the slider 33
Although the power transmission side coupler 43 is movably supported by the vehicle front-back direction, the connecting plate 72 is attached and fixed to the support base 71 erected on the floor surface 12a of the garage 12, as shown in FIGS. The guide pipes 7 are provided on both left and right sides of the upper portion of the connecting plate 72.
A connecting plate 72 in which 3a and 73b are provided slidably in the vehicle front-rear direction and the front ends of the guide pipes 73a and 73b are connected.
Guide pipes 36a, 36 slidably in the vehicle height direction.
b is provided. Then, the power transmission side coupler 43 may be biased toward the front of the vehicle by a biasing means such as a coil spring (not shown). (4) In the above embodiment, as shown in FIG.
The power receiving side coupler 25 may be provided on the bottom surface of the electric vehicle 11. In this case, the pedal 75 is provided, and the rear wheel 22 is the wheel stopper 5
The rear wheel 22 depresses the pedal 75 when it abuts the wheel 2.
Then, the power transmission side coupler 43 slowly moves to the power receiving side coupler 2.
Ascend to 5. In this case as well, the relative displacement is corrected by the engagement of the ground side guides 46, 47 and the vehicle side guides 28, 29 in the vehicle front-rear direction, and the first to third rubber suspensions 39, 41. , 42 correct the relative angular deviations in the θ _x , θ _y , and θ _z directions. As a result, similar to the above-described embodiment, both couplers 25, 25
43 can be attached.

(5) In the above embodiment, the stop of the vehicle is determined by the P range signal from the electric vehicle 11, but the stop of the vehicle may be detected on the charging device 13 side. In this case, a weak current is supplied to the power transmission side coupler 43, and when the power transmission side coupler 43 and the power reception side coupler 25 are coupled by the stop of the electric vehicle 11, the impedance changes and the voltage supplied to the power transmission side coupler 43. Changes. The stop of the vehicle is detected based on the change in the voltage.

(6) In the above embodiment, the guide pipe 54 is composed of a plurality of roller guides 55, but a long pipe is bent and laid on the ground to guide the electric vehicle 11 to the charging position. You may

Although the guide pipe 54 is arranged inside the wheel 22 in the above embodiment, it may be arranged outside the wheel 22. Further, the guide pipes 54 may be arranged on both sides of either the left or right wheel 22 for implementation.

(7) In the above embodiment, the current flowing through the power transmitting side electromagnetic coil 45 or the voltage applied to the coil 45 is controlled so that the current flowing through the power receiving side electromagnetic coil 27 is constant as the charging control in S7. As the charging control, the ground-side controller 62 uses the power-receiving-side electromagnetic coil 27
So that the voltage applied to the
The current flowing through the coil 5 or the voltage applied to the coil 45 may be controlled. Similarly, the ground-side controller 62 may control the current flowing through the power-transmitting-side electromagnetic coil 45 or the voltage applied to the coil 45 so that the power supplied to the power-receiving-side electromagnetic coil 27 becomes constant.

Although the respective embodiments of the present invention have been described above, technical ideas other than the claims which can be understood from the respective embodiments will be described below together with their effects. (A) The power receiving side coupler is provided on the bottom surface of the vehicle, and a pedal operated by wheels is provided at a parking place, and the power transmitting side coupler is moved upward based on the operation of the pedal to couple both couplers. The coupler coupling device for a charging device according to claim 1, wherein According to this configuration, the power receiving side coupler and the power transmitting side coupler can be easily coupled without requiring a high level driving technique.

[0084]

As described in detail above, according to the present invention, it is possible to provide a positioning device for a charging device that can perform a charging operation simply and quickly without the need for a sophisticated driving technique.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing an electric vehicle and a coupler coupling device.

FIG. 2 is a schematic side view showing an electric vehicle and a coupler coupling device.

FIG. 3 is a schematic plan view of a coupler coupling device.

FIG. 4 is a schematic side view of a coupler coupling device.

FIG. 5 is a schematic rear view of the coupler coupling device.

FIG. 6 is a schematic side view showing a coupled state of the coupler coupling device.

FIG. 7 is an electric block circuit diagram of the charging device.

FIG. 8 is a processing flowchart of the charging device.

FIG. 9 is a schematic plan view of another coupler coupling device.

FIG. 10 is a schematic side view of another coupler coupling device.

FIG. 11 is a schematic rear view of another coupler coupling device.

FIG. 12 is a schematic side view of another electric vehicle and a coupler coupling device.

[Explanation of symbols]

11 ... Electric vehicle as vehicle, 12 ... Garage as parking place, 13 ... Ground side charging device, 25 ... Power receiving side coupler, 26 ... Power receiving side core, 27 ... Power receiving side electromagnetic coil, 2
8, 29 ... Vehicle side guide, 31 ... Coupler coupling device as coupler supporting means, 33 ... Slider as first moving means, 36a, 36b ... Guide pipe as second moving means, 38 ... Second movement Coil spring as a means, 3
9 ... 1st rubber suspension as 1st rotation support means, 41 ... 2nd rubber suspension as 2nd rotation support means, 42 ... 3rd rubber suspension as 3rd rotation support means , 43 ... Power transmission side coupler, 4
4 ... Power transmission side core, 45 ... Power transmission side electromagnetic coil, 46, 47
... ground side guide, 52 ... wheel stoppers, 54 ... guide pipe as guide means.

Claims (9)

[Claims] 1. A battery mounted in a vehicle via both couplers by electromagnetic induction generated in a power receiving side coupler provided in the vehicle with respect to a power transmitting side coupler provided in a parking place of the vehicle and on the ground side. A coupler coupling device of a charging device for coupling both couplers to supply electric power for charging the power transmission side coupler, the power transmission side coupler being movably and rotatably supported, and the power reception side coupler being transmitted. A coupler coupling device for a charging device, which is provided with a coupler supporting means for correcting a relative deviation between both couplers when coupling with a side coupler. 2. The coupler supporting means supports the power transmission side coupler so as to be movable in the front-rear direction and the height direction of the vehicle and rotatably in the horizontal and vertical directions. 2. The coupler coupling device for a charging device according to claim 1, wherein the coupler coupling device is moved and rotated to correct a relative shift between the couplers. 3. The coupler supporting means includes a first moving means for supporting the power transmission side coupler so as to be movable in a vehicle front-rear direction, and a second moving means for supporting the power transmission side coupler so as to be movable in a vehicle height direction. Moving means, first rotation support means for supporting the power transmission side coupler so as to be vertically rotatable along the vehicle width direction, and second rotation support means for supporting the power transmission side coupler horizontally. A third rotation support means for supporting the power transmission side coupler so as to be vertically rotatable along the vehicle front-rear direction, wherein the first and second moving means are power transmission side couplers for the power reception side coupler. 3. The first to third rotation support means corrects the relative positional deviation of the power transmitting side coupler with respect to the power receiving side coupler. Coupler device for charging device. 4. The power receiving side coupler is formed to be larger than the power transmitting side coupler in the vehicle width direction to allow a deviation in the vehicle width direction. A coupler coupling device of the charging device according to. 5. The power receiving side coupler is formed to be smaller than the power transmitting side coupler in the vehicle width direction to allow a deviation in the vehicle width direction. A coupler coupling device of the charging device according to. 6. The front-back direction support means biases the power transmission side coupler in a direction toward the vehicle.
The coupler coupling device of the charging device as described in any one of Claims 1-3. 7. A vehicle-side guide that is engaged with ground-side guides disposed above and below the power-transmission-side coupler and that moves the power-transmission-side coupler in the height direction is provided above and below the power-reception-side coupler. A coupler coupling device for a charging device according to any one of claims 1 to 6. 8. A wheel stopper is provided on a floor surface of a parking place of the vehicle, and the coupler supporting means parks a wheel of the vehicle so as to substantially abut the wheel stopper so that the power transmission side coupler and the power receiving side are connected to each other. The coupler coupling device for a charging device according to any one of claims 1 to 7, wherein the coupler coupling device is coupled with a coupler. 9. A guide means for guiding the vehicle to a position where the power receiving side coupler and the power transmitting side coupler can be coupled is laid on the floor surface of the parking place, and wheels are wheel stoppers along the guide means. The coupler coupling device for a charging device according to claim 8, wherein the vehicle is parked so as to come into contact with the vehicle.