JP5938249B2 - Battery unit for electric saddle riding type vehicle - Google Patents

Description

The present invention relates to a battery unit of an electric saddle-ride type vehicle in which a plurality of battery modules are housed in a battery box.

  In recent years, various types of electric saddle riding type vehicles such as electric scooters using an electric motor as a drive source have been developed (for example, see Patent Document 1).

  In an electric saddle-ride type vehicle driven by an electric motor, it is necessary to mount a battery having a high voltage and a large capacity in order to ensure a driving output. In many of the batteries used here, a plurality of battery modules are accommodated in a battery box to form a battery unit, and the battery modules are electrically connected to each other inside the battery box.

JP 2010-269658 A

  By the way, in the battery unit as described above, individual electrode terminals of the battery module may be internally wired by a connection cable inside the battery box. In this case, when the number of battery modules stored in the battery box increases, the number of connection cables increases, and the wiring itself becomes complicated. For this reason, an operator's skill was required for the assembly of the battery unit.

  In particular, when it is desired to consolidate battery units in a limited installation space, such as when employed in an electric saddle-ride type vehicle, the plurality of battery modules in the battery box are irregular. In many cases, the wiring between the battery modules tends to be more complicated. For this reason, an operator's burden becomes bigger.

Accordingly, the present invention intends to provide a battery unit for an electric saddle-ride type vehicle that can improve workability when connecting a connection cable to the electrode terminals of the battery module and can reduce the burden on the assembly operator. It is.

In the battery unit of the electric saddle-ride type vehicle according to the present invention, the following configuration is adopted in order to solve the above problems.
The invention according to claim 1 is capable of opening and closing a plurality of battery modules (40A to 40D) having electrode terminals (Tp, Tn), a box body (27) having an open top, and an upper portion of the box body (27). And a battery box (14) in which the plurality of battery modules (40A to 40D) are housed with the electrode terminals (Tp, Tn) facing the same side. In the battery box (14), a plurality of wires connected to the electrode terminals (Tp, Tn) of the battery modules (40A to 40D) so as to connect all the battery modules (40A to 40D) in series. Connecting cables (41a to 41f) and the electrode terminals (Tp, Tn) of the plurality of battery modules (40A to 40D) Connected to a guide plate mounted across the surface (42), said different battery module (40B, 40D) of the electrode terminal (Tp, Tn) 2 one connecting cable (41c, 41f) for each connection fuse connection to the A fuse box (54) that electrically disconnects and connects between the two connection cables (41c, 41f) by detaching the fuse (56) from the fuse case (55), and the box cover ( A fastening member (27) that restricts the opening of the box cover (28) by releasing and restricting the opening of the box cover (28), and the guide plate (42) includes the plurality of battery modules (40A to 40A). 40D) from the side opposite to the side facing the connection cable (41a to 41f) to the electrode terminal ( p, Tn) and terminal guides (48) for connecting to the wiring connection means (49a, 49b, 49c, 49e) for guiding the wiring of the corresponding connection cables (41a-41f) on the opposite surface. and 50a to 50f), is provided, et al is, the fuse box (54), in a state in which the fuse (56) is attached to the fuse casing (55), the fuse (56) said fastening member (27) It is arrange | positioned on the outer side of the said box cover (28) so that the upper direction may be covered .

  The invention according to claim 2 is the battery unit according to claim 1, wherein the wiring guide means is a guide claw (49a, 49b, 49c, 49e) for holding the connection cables (41a-41f) in a predetermined direction. It is characterized by having.

  According to a third aspect of the present invention, in the battery unit according to the first or second aspect, the wiring guide means is a wiring display unit (50a to 50f) that allows an operator to visually recognize the wiring direction of the connection cables (41a to 41f). It is characterized by having.

  According to a fourth aspect of the present invention, in the battery unit according to the third aspect, the wiring display portion is a guide groove into which the connection cables (41a to 41f) can be fitted.

  According to a fifth aspect of the present invention, in the battery unit according to any one of the first to fourth aspects, the terminal connection portion connects the electrode terminal (Tp, Tn) to the opposite side of the guide plate (42). It is the opening (48) exposed to the surface side of this.

  The invention according to claim 6 is the battery unit according to any one of claims 1 to 5, wherein the guide plate (42) is formed of an insulating soft resin. .

  The invention according to claim 7 is the battery unit according to any one of claims 1 to 6, wherein the battery restraining member (43) restrains the plurality of battery modules (40A to 40D) in the battery box (14). The battery restraining member (43) restrains the plurality of battery modules (40A to 40D) in the battery box (14) via the guide plate (42). is there.

  According to the present invention, the guide plate is provided to be mounted across the end surface on the side where the electrode terminals of the plurality of battery modules are present, and the terminal connection for connecting the connection cable to the electrode terminals of the battery module is provided on the guide plate. Since the wiring guide means for guiding the wiring of the connection cable and the connection cable is provided, the connection cable can be handled by connecting the connection cable to the electrode terminal while guiding the connection cable by the wiring guide means. Can be reliably connected to the electrode terminal.

  In addition, when the guide plate is formed of an insulating soft resin, the battery holder can be attached to the end surfaces of the plurality of battery modules even if the top surface height of the plurality of battery modules stored in the battery box varies slightly. The backlash of the battery module can be suppressed by pressing it onto the battery box and fixing it to the battery box.

1 is a side view of an electric motorcycle according to an embodiment of the present invention. FIG. 2 is a side view of the electric motorcycle according to the embodiment of the present invention with covers and some parts removed. 1 is a perspective view of a state where a cover and some parts of an electric motorcycle according to an embodiment of the present invention are removed. FIG. 1 is a plan view of a skeleton part of an electric motorcycle according to an embodiment of the present invention. 1 is a side view of a skeleton part of an electric motorcycle according to an embodiment of the present invention. It is the perspective view which looked at the electric two-wheeled vehicle of one Embodiment of this invention from the front part lower side in the state which removed the covers and some components. FIG. 3 is a cross-sectional view corresponding to the AA cross section of FIG. 2 of the electric motorcycle according to the embodiment of the present invention. It is a disassembled perspective view of the battery unit of one Embodiment of this invention. It is the perspective view which removed the box cover of the battery unit of one Embodiment of this invention. It is the top view which removed the box cover of the battery unit of one Embodiment of this invention. It is a top view of the guide plate of the battery unit of one Embodiment of this invention. It is a perspective view of the guide plate of the battery unit of one Embodiment of this invention. It is sectional drawing corresponding to the BB cross section of FIG. 2 of the electric motorcycle of one Embodiment of this invention. It is sectional drawing corresponding to the BB cross section of FIG. 2 of the electric motorcycle of one Embodiment of this invention. It is a perspective view of the battery box of the modification of one Embodiment of this invention. It is sectional drawing corresponding to CC cross section of FIG. 15 of the battery box of the modification of one Embodiment of this invention.

  Embodiments of the present invention will be described below with reference to the drawings. Note that the directions such as front, rear, left and right in the following description are the same as those in the vehicle unless otherwise specified. In addition, the arrow FR in the drawing indicates the front side of the vehicle, the arrow UP indicates the upper side of the vehicle, and the arrow LH indicates the left side of the vehicle.

FIG. 1 is a side view showing an entire vehicle employing the battery unit BU of this embodiment.
The vehicle of this embodiment is a scooter type electric motorcycle 1 which is an embodiment of an electric saddle riding type vehicle. The electric motorcycle 1 is provided with a step floor 4 on which an occupant's feet are placed between a steering bar handle 2 and an occupant seating seat 3, and a rear wheel Wr is driven by an electric motor 5. In the electric motorcycle 1, a suspension system for the front wheel Wf and a suspension system for the rear wheel Wr are supported on the front and rear of the body frame F, respectively, and a seat 3 is supported on the upper part of the vehicle frame F in the front-rear direction. ing.

2-6 is a figure which shows the state which removed the outer covers and some components of the electric motorcycle 1 suitably.
As shown in these figures, the vehicle body frame F, which is the main skeleton part of the vehicle body, includes a main frame pipe 7 having a head pipe 6 (see FIGS. 1 and 4) coupled to a front end portion, and a vehicle frame longitudinal direction. In a substantially central position, a lower cross pipe 8 that is coupled orthogonally to the rear end of the main frame pipe 7 and a pair of left and right rear that are coupled to the left and right ends of the lower cross pipe 8 in the vehicle width direction. And a frame pipe 9.

The main frame pipe 7 includes a down frame portion 7a inclined downward from the head pipe 6 and a lower frame portion 7b extending rearward substantially horizontally from the rear end portion of the down frame portion 7a. The lower frame portion 7 b is disposed below the central region in the vehicle width direction of the step floor 4, and is coupled to the lower cross pipe 8 at a position almost directly below the front end portion of the seat 3 on the rear side of the step floor 4.
As shown in FIG. 1, a stem pipe 10 is rotatably held on a head pipe 6 coupled to a main frame pipe 7. A front wheel Wf is pivotally supported at the lower end portion of the stem pipe 10 via a front fork 11, and the bar handle 2 is coupled to the upper end portion of the stem pipe 10.

The left and right rear frame pipes 9 extend from the connecting portion with the lower cross pipe 8 toward the rear end portion of the seat 3 obliquely upward and rearward, and further the rear side region is inclined slightly downward so that the rear end portion of the vehicle It extends to the vicinity. The rear ends of the left and right rear frame pipes 9 are connected to each other at the rear of the vehicle.
Here, of the left and right rear frame pipes 9, a portion extending obliquely upward at the rear from the lower cross pipe 8 is referred to as an inclined frame portion 9 a and extends from the upper end portion of the inclined frame portion 9 a to the vehicle rear side. Assuming that the area is called a seat rail portion 9b, the left and right rear frame pipes 9 are connected to each other by an upper cross pipe 12 in the vicinity of the connecting portion between the inclined frame portion 9a and the seat rail portion 9b. A seat support bracket 20 that also serves as a seat for a seat lock mechanism (not shown) projects from the upper portion of the upper cross pipe 12.

  On the front side of the left and right rear frame pipes 9, a floor support subframe 13 for supporting the step floor 4 from below is disposed. The floor supporting subframe 13 has a rear end coupled to the front edge of the left and right rear frame pipes 9 and the upper surface of the lower cross pipe 8, and a front end coupled to the lower frame 7 b of the main frame pipe 7. ing. Specifically, the subframe 13 includes a pair of side frame portions 13a extending substantially horizontally from the front edge portions of the left and right rear frame pipes 9 toward the vehicle body front side, and a vehicle from the front edge portions of both side frame portions 13a. The cross frame portion 13b extends inward in the width direction and is coupled to the lower frame portion 7b of the main frame pipe 7.

  A battery supporting subframe 15 for placing the battery unit BU is disposed on the rear side of the lower cross pipe 8. 1 and 2, only the battery box 14 that is an outer portion of the battery unit BU is shown. The specific structure of the battery unit BU will be described in detail later.

The battery supporting sub-frame 15 includes a rear frame portion 15a made of a substantially U-shaped pipe material and a pair of side frame portions 15b made of a straight pipe-shaped pipe material.
The rear frame portion 15a is arranged such that a central extension region (hereinafter referred to as a “central extension region”) faces the vehicle width direction, and bent regions on both sides extend upward, and each end thereof Are coupled to the inclined frame portions 9a of the left and right rear frame pipes 9, respectively.
The side frame portion 15b is coupled to the lower cross pipe 8 and the central extension region of the rear frame portion 15a on the inner side in the vehicle width direction of the left and right rear frame pipes 9 (inclined frame portions 9a). Both side frame portions 15b are arranged in parallel so as to extend in the longitudinal direction of the vehicle. As shown in FIGS. 2, 3, and 6, a metal support plate 16 is stretched over the upper surface side. . The front edge portion of the support plate 16 is also extended over the upper surface side of the lower cross pipe 8, so that the battery unit BU is placed on the upper portion of the support plate 16 supported by the subframe 15 and the lower cross pipe 8. It has become. As shown in FIG. 3, a sheet member 17 made of an insulating rubber material is attached to an appropriate location on the upper surface of the support plate 16 on which the battery unit BU is placed.

  A pivot plate 18 is attached to each of the left and right side frame portions 15b of the subframe 15, and a pivot shaft 21 that pivotally supports the front end portion of the swing arm 19 is attached to these pivot plates 18. Yes. At the rear end of the swing arm 19, a rear wheel Wr is pivotally supported, and an electric motor 5 (including a reduction gear) for driving the rear wheel Wr, a brake mechanism (not shown), and the like are held. The rear end portion of the swing arm 19 is supported by the seat rail portion 9 b of the rear frame pipe 9 via the cushion unit 22. In this embodiment, the electric motor 5 is disposed on the left part of the rear wheel Wr of the swing arm 19.

  By the way, as shown in FIG. 1, a luggage box 23 for storing articles such as helmets and accessories is disposed below the seat 3 on which the occupant sits. The luggage box 23 is formed in a box shape having an upper portion opened by a hard resin material, and the upper opening is opened and closed by the sheet 3. 1 and 2 is an open / close hinge for rotatably supporting the front end portion of the seat 3 on the front end portion of the luggage box 23.

  The luggage box 23 is supported by the inclined frame portion 9a of the left and right rear frame pipes 9 via the luggage mount stay 25, which is a metal plate-like part, and the rear end side of the bottom surface of the bottom wall near the front portion. The upper opening edge is supported by the upper cross pipe 12 via the seat support bracket 20. In the figure, reference sign B1 is a bolt for fixing the rear end portion of the luggage box 23 to the upper surface of the seat support bracket 20.

  As shown in FIGS. 2 and 3, the luggage mount stay 25 extends along the vehicle width direction and receives the load of the luggage box 23, and bends downward from both ends of the support beam 25a. And a fixing flange 25c bent outward in the vehicle width direction from the lower end of each connecting portion 25b. The bottom wall of the luggage box 23 is placed on the upper surface of the support beam portion 25a, and the bottom wall of the luggage box 23 is fixed by a bolt B2. The support beam portion 25a and the connecting portion 25b of the luggage mount stay 25 are disposed outside the upper surface of the battery box 14 and the side surfaces on both sides.

  On the other hand, a support bracket 26 having a substantially U-shaped cross section is located above the inclined frame portion 9a of each of the left and right rear frame pipes 9 at a position corresponding to a substantially central region in the front-rear direction of the battery support subframe 15. It protrudes toward. The support bracket 26 is welded and fixed to the inclined frame portion 9a corresponding to the U-shaped opening side of the cross section, and a flat load receiving surface 26a is disposed at an end portion protruding upward from the weld fixing portion. The load receiving surface 26 a of the support bracket 26 is provided at a location facing the left and right fixing flanges 25 c of the luggage mount stay 25.

As shown in FIGS. 1 and 2, the battery box 14 of the battery unit BU includes a box main body 27 having an upper opening, and a box cover 28 attached to the upper portion of the box main body 27 so as to be opened and closed. Yes. The box body 27 and the box cover 28 are made of a hard resin material.
Further, locking flanges 27a and 28a project from the left and right sides of the box body 27 and the box cover 28 in the vehicle width direction, respectively. The left and right locking flanges 27a, 28a are overlapped in the vertical direction when the box cover 28 is closed, and in this state, between the load receiving surface 26a of the support bracket 26 and the corresponding fixing flange 25c of the luggage mount stay 25. Is intervened. The locking flanges 27a and 28a thus interposed between the load receiving surface 26a and the fixed flange 25c are fixed to the support bracket 26 and the fixed flange 25c by bolts 29 which are fastening members.

FIG. 7 is a view showing a cross section of the fixing portion of the locking flanges 27a and 28a.
As shown in the figure, bolt insertion holes 30 and 31 are formed in corresponding portions of the load receiving surface 26a of the support bracket 26 and the fixing flange 25c of the luggage mount stay 25, and bolts are inserted in the locking flanges 27a and 28a. Through holes 32 and 33 having diameters larger than those of the holes 30 and 31 are formed. In the through holes 32 and 33 of the locking flanges 27 and 28, a shaft collar metal collar 34 substantially the same as the total thickness of the locking flanges 27 and 28 is inserted. A weld nut 35 that is screwed into the bolt 29 is provided on the back surface side of the load receiving surface 26 a of the support bracket 26.
In the state where the latching flanges 27a and 28a are sandwiched between the left and right fixing flanges 25c and the load receiving surface 26a of the support bracket 26, the luggage mount stay 25 is secured to the support bracket 26 corresponding to the left and right fixing flanges 25c by bolts 29. Fastened and fixed. At this time, the shaft portion of the bolt 29 penetrates the inside of the metal collar 34, and the fastening load of the bolt 29 is received by the collar 34.

  When the fixing flange 25c is fastened and fixed to the support bracket 26 with the locking flanges 27a and 28a sandwiched as described above, the luggage mount stay 25 that supports the luggage box 23 is inserted into the left and right rear frames via the support bracket 26. The battery box 14 is fixed to the rear frame pipe 9 (body frame F) while being coupled to the pipe 9 (body frame F). A predetermined gap is provided between the upper surface of the battery box 14 thus fixed and the support beam portion 25 a of the luggage mount stay 25.

Further, power supply connection cables 41 a and 41 d described later are drawn out from the battery box 14. The connection cables 41a and 41d are connected to the control unit 36 and the DC-DC converter 37 shown in FIG.
The control unit 36 includes a PDU (Power Drive Unit) that controls a current supplied to the electric motor 5, and a three-phase cable (not shown) that connects the PDU and the electric motor 5 is wired through the cover of the swing arm 19. The control unit 36 is supported by the inclined frame portion 9 a of the right rear frame pipe 9 at a position biased to the right in the vehicle width direction on the rear side of the luggage box 23.

  The DC-DC converter 37 is connected to a low piezoelectric equipment system of the vehicle through a connection cable (not shown). The DC-DC converter 37 is supported by the inclined frame portion 9 a of the right rear frame pipe 9 on the right side portion of the luggage box 23. Specifically, the DC-DC converter 37 is fixed to a bracket 38 projecting forward from the right inclined frame portion 9 a, thereby being installed on the right side portion of the luggage box 23.

8 to 12 are diagrams showing a detailed structure of the battery unit BU.
As shown in FIG. 8, the battery unit BU includes four battery modules 40A, 40B, 40C, and 40D, the battery box 14 that houses the battery modules 40A, 40B, 40C, and 40D, and the battery box 14 , The six connection cables 41a to 41f connected to the electrode terminals Tp and Tn of the battery modules 40A, 40B, 40C, and 40D, and a plurality of battery modules 40A, 40B, 40C, A guide plate 42 superimposed on the end surface on the side where the electrode terminals Tp, Tn of 40D exist, and a set plate 43 (battery) that fixes the plurality of battery modules 40A, 40B, 40C, 40D to the battery box 14 via the guide plate 42. Restraining member), It is provided.

  Battery modules 40A, 40B, 40C, and 40D are all formed in a rectangular parallelepiped shape with one side being longer than the other two sides, and the long side is directed in the vertical direction and accommodated in battery box 14. Is done. In the following description, unless otherwise specified, “upper” and “lower” for the battery modules 40A, 40B, 40C, and 40D mean the upper and lower sides of the battery modules 14 and the battery units BU. “Up”, “Down”, “Front”, “Rear”, “Left” and “Right” mean “up”, “down”, “front”, “back” and “left” when the battery unit BU is attached to the vehicle body.

The electrode terminals Tp, Tn of the battery modules 40A, 40B, 40C, 40D are all arranged on the upper surface side. Moreover, the top view shape of each battery module 40A, 40B, 40C, 40D is formed in the rectangular shape from which the length of an adjacent edge differs. The positive and negative electrode terminals Tp, Tn on each battery module 40A, 40B, 40C, 40D are arranged in the vicinity of both ends on the long side of the upper surface of each battery module 40A, 40B, 40C, 40D. ing.
The battery modules 40A, 40B, 40C, and 40D are arranged in the battery box 14 such that the three battery modules 40B, 40C, and 40D are arranged side by side in the left-right direction so that the long side in the top view faces the front-rear direction. The battery module 40A is arranged on the front side of the three battery modules 40B, 40C, and 40D so that the long side in the top view is directed in the left-right direction.

  As described above, the battery box 14 includes the box main body 27 whose upper side is opened and the box cover 28 attached to the upper portion of the box main body 27. Both the box main body 27 and the box cover 28 are internal. In order to arrange the battery modules 40A, 40B, 40C, and 40D, a concave shape is formed. However, since the battery modules 40A, 40B, 40C, and 40D are accommodated mainly on the box body 27 side, the depth of the recess on the box body 27 side is deeper than the depth of the recess on the box cover 28 side.

Further, peripheral flanges 27 b and 28 b are formed on the upper edge portion of the box body 27 and the lower edge portion of the box cover 28 so as to be brought into contact with each other. A seal member (not shown) is interposed between the peripheral flanges 27b and 28b.
In the box cover 28, a through hole 44 is formed on the left side wall for drawing the power supply connection cables 41 a and 41 d to the outside, and a grommet 45 is attached to the through hole 44. Similarly, the upper wall of the box cover 28 is formed with a through hole 46 for drawing out the connection cables 41c and 41f for fuse connection to the outside, and a grommet 47 is attached to the through hole 46.

The guide plate 42 is formed in a plate shape having a substantially constant thickness by an insulating soft resin material, and the shape in plan view is that of the battery modules 40A, 40B, 40C, 40D arranged in the box body 27 of the battery box 14. The shape corresponds to the upper shape.
As shown in FIGS. 9 to 12, the guide plate 42 is formed with openings 48 at locations corresponding to the electrode terminals Tp and Tn of the battery modules 40 </ b> A, 40 </ b> B, 40 </ b> C, and 40 </ b> D in the box body 27. Each opening 48 exposes the electrode terminals Tp, Tn of the battery modules 40A, 40B, 40C, 40D to the upper side of the guide plate 42, and the corresponding electrode terminals Tp, Tn from the upper side of the guide plate 42. The terminal connection part for connecting the connection cables 41a-41f to is comprised.

A plurality of guide claws 49a, 49b, 49c, and 49e that hold the connection cables 41a, 41b, 41c, and 41e in a predetermined direction project from the upper surface of the guide plate 42, and the connection cables 41a to 41f are wired. Band-shaped wiring display marks 50a to 50f (wiring display portions) for attaching the direction to the operator are attached. Each guide claw 49a, 49b, 49c, 49e is constituted by a pair of protrusions having a constant width protruding upward from the upper surface of the guide plate 42, and corresponding connecting cables 41a, 41b, 41c between the pair of protrusions. , 41e. In this embodiment, the guide claws 49a, 49b, 49c, 49e and the wiring display marks 50a to 50f constitute wiring guide means for guiding the wiring of the connection cables 41a to 41f on the upper surface of the guide plate 42.
In addition, at a position close to the opening 48 on the upper surface of the guide plate 42, a pole display for allowing the operator to recognize whether the electrode terminals Tp and Tn arranged in the opening 48 are the positive electrode or the negative electrode. Matters 51p and 51n are attached.

  The entire set plate 43 is formed in a substantially T-shaped band shape from a hard resin material. Specifically, the set plate 43 includes a width-direction band portion 43a that extends across the upper surface of the guide plate 42 in the left-right direction, and a front band portion 43b that extends forward from the longitudinal center of the width-direction band portion 43a. Fastening flanges 52 are provided on both edge portions in the extending direction of the width direction belt portion 43a and the front edge portion of the front belt portion 43b via bent portions (reference numerals omitted) bent downward. . Each fastening flange 52 is fastened and fixed to the upper edge of the box body 27 by a bolt 53.

  Note that the battery modules 40A, 40B, 40C, and 40D protrude upward from the box body 27 in a state where the battery modules 40A, 40B, 40C, and 40D are housed in the opening of the box body 27, as shown in FIG. The guide plate 42 is placed on the upper surfaces of the battery modules 40A, 40B, 40C, 40D thus housed in the box body 27. The width direction band part 43 a and the front band part 43 b of the set plate 43 are stretched over the upper surface of the guide plate 42 in this state, and the fastening flanges 52 are fastened and fixed to the upper surface of the box body 27. At this time, the set plate 43 is fixed to the box body 27 in a state where the guide plate 42 is pressed against the upper surfaces of the battery modules 40A, 40B, 40C, and 40D. As a result, the battery modules 40 </ b> A, 40 </ b> B, 40 </ b> C, 40 </ b> D are restrained in the box body 27 together with the guide plate 42.

Here, an internal wiring of the battery unit BU by the connection cables 41a to 41f will be described with reference to FIG.
The power supply connection cables 41a and 41d drawn out of the battery box 14 through the grommet 45 are respectively connected to the negative electrode terminal Tn of the front battery module 40A and the positive electrode terminal Tp of the rear left battery module 40D. Connected.
The positive electrode terminal Tp of the battery module 40A on the front side is connected to the negative electrode terminal Tn of the battery module 40B on the rear right side via the connection cable 41b. Thereby, the battery module 40A on the front side and the battery module 40B on the rear right side are connected in series. Further, the positive electrode terminal Tp of the rear right battery module 40B is connected to a connection cable 41c for fuse connection.
On the other hand, the negative electrode terminal Tn of the rear left battery module 40D is connected to the positive electrode terminal Tp of the rear center battery module 40C via the connection cable 41e. Thus, the rear left battery module 40D and the rear center battery module 40C are connected in series. In addition, the negative electrode terminal Tn of the battery module 40C at the rear center is connected to a connection cable 41f for fuse connection.
The end portions of the connection cables 41a to 41f and the electrode terminals Tp and Tn are connected from above the guide plate 42 by screws.

  The connection cables 41c and 41f for connecting the fuses are drawn out of the battery box 14 through the grommet 47, and each end of the drawn connection cables 41c and 41f extends from the bottom wall of the luggage box 23 to the luggage box 23. It is pulled into the interior and connected to a fuse box 54 that is attached to the bottom wall in the luggage box 23. That is, the battery modules 40A and 40B and the battery modules 40D and 40C connected to each other are connected in series via the fuse box 54. The fuse box 54 will be described in detail later.

The battery unit BU having the above configuration is assembled as follows.
First, the battery modules 40A, 40B, 40C, and 40D are accommodated in the box body 27 of the battery box 14 in the above-described arrangement with the electrode terminals Tp and Tn facing upward.
From this state, the guide plate 42 is placed on the upper surface side of the battery modules 40A, 40B, 40C, and 40D. In this state, the set plate 43 is placed on the guide plate 42, and the guide plate 42 is attached to the battery modules 40A, 40A by the set plate 43. The fastening flange 52 of the set plate 43 is fastened and fixed to the box body 27 while being pressed against the upper surfaces of 40B, 40C, and 40D.
In this state, the electrode terminals Tp, Tn of the battery modules 40A, 40B, 40C, 40D are exposed upward through the openings 48 of the guide plate 42, and are covered by the set plate 43 on the upper surface of the guide plate 42. Wiring display marks 50a to 50f corresponding to the connection cables 41a to 41f are exposed at the portions where the connection cables 41a to 41f are not, and guide claws 49a, 49b, 49c, 49e protrudes.

Next, from this state, on the upper side of the guide plate 42, the corresponding connection cables 41a to 41f are wired to the electrode terminals Tp and Tn.
At this time, the operator pulls the connection cables 41a to 41f so as to follow the bands of the wiring display marks 50a to 50f on the guide plate 42, and guides the guide claws 49a, 49b, 49c and 49e are appropriately held, and the ends of the connection cables 41a to 41f are connected to the corresponding electrode terminals Tp and Tn.
Thereafter, the end portions of the power supply connection cables 41a and 41d and the fuse connection cables 41c and 41f are pulled out to the outside through the grommets 45 and 47 on the box cover 28 side, and in this state, the box cover 28 is attached to the box body 27. The box cover 28 is fastened and fixed to the box body 27 by covering the top.

Here, the fuse box 54 connected to the connection cables 41c and 41f will be described with reference to FIGS. 13 and 14 are cross-sectional views of the luggage box 23 and the fuse box 54 corresponding to the BB cross section of FIG.
The fuse box 54 includes a fuse case 55 connected to the connection cables 41c and 41f, and a fuse 56 that is detachably attached to a terminal portion in the fuse case 55.

  An attachment arm portion 55 a extends from the fuse case 55, and the arm portion 55 a is fastened and fixed to the bottom wall of the luggage box 23 by a bolt 57. And the front-end | tip part of the volt | bolt 57 which fixes the fuse case 55 penetrates the bottom wall of the luggage box 23, and is fastened with respect to the upper wall of the box cover 28 of the battery box 14. FIG. 13 and 14 is a nut fixed to the inner wall of the luggage box 23, and 59 is an arm for stably supporting the arm portion 55a of the fuse case 55 on the end face of the nut 58. This is a metal stay interposed between the portion 55 a and the nut 58. Reference numeral 60 denotes a box cover attached in the luggage box 23 so as to cover the outside of the fuse box 54.

The fastening portion of the bolt 57 in the arm portion 55 a is set so that the upper side (front surface) of the bolt 57 in the attaching / detaching direction is covered with the fuse 56 when the fuse 56 is attached to the fuse case 55. Yes.
For this reason, when the fuse case 55 is removed from the luggage box 23 and the connection cables 41 c and 41 f are pulled out from the bottom of the luggage box 23, it is necessary to remove the fuse 56 from the fuse case 55. That is, when the fuse 56 is removed from the fuse case 55 as shown in FIG. 14 after the box cover 60 is removed, the bolt 57 fixing the fuse case 55 can be accessed from within the luggage box 23. However, unless the fuse 56 is removed, it becomes impossible to remove the bolt 57 because the fuse 56 becomes an obstacle.

  The bolts 57 that fix the fuse case 55 to the luggage box 23 are also fastened to the upper surface of the box cover 28 of the battery box 14. For this reason, the luggage box 23 cannot be separated from the battery box 14 unless the fuse box 54 (fuse case 55) is removed from the inner bottom wall. Therefore, removal of the battery unit BU from the vehicle body and access to the battery box 14 by opening the box cover 28 cannot be performed unless the fuse box 54 is removed from the luggage box 23.

In the electric motorcycle 1, the battery unit BU is removed as follows.
First, the seat 3 is lifted to open the upper portion of the luggage box 23, and an operator puts a hand through the opening in the upper portion of the luggage box 23, and removes the fuse 56 from the fuse box 54 in the luggage box 23 as described above. After the bolts 57 are removed, the fuse case 55 is removed from the luggage box 23.
Next, the vehicle body covers are appropriately removed from this state, and then the bolts B2 and B1 before and after the luggage box 23 are removed, and the luggage box 23 is removed from the vehicle body together with the seat 3.
Thereafter, the bolts 29 at the left and right fixing flanges 25c of the luggage mount stay 25 are removed, and the fastening of the luggage mount stay 25 to the support bracket 26 (rear frame pipe 9) is released. The battery unit BU is removed from the vehicle body in this state.

  Since the electric motorcycle 1 employs the mounting structure of the fuse box 54 as described above, the battery unit BU cannot be removed unless the fuse 56 is removed. Therefore, the battery unit BU can be removed safely at all times.

  In the battery unit BU employed in the electric motorcycle 1, a guide plate 42 is attached to the upper surfaces of the plurality of battery modules 40A, 40B, 40C, 40D housed in the box body 27, and each battery is attached to the guide plate 42. An opening 48 exposing the electrode terminals Tp, Tn of the modules 40A, 40B, 40C, 40D upward, wiring display marks 50a-50f for guiding the wiring of the connection cables 41a-41f, and guide claws 49a, 49b, 49c. , 49e, the connection cables 41a to 41f can be easily and reliably connected to the corresponding electrode terminals Tp and Tn without depending on the skill of the operator.

  That is, in this battery unit BU, since the wiring display marks 50a to 50f are marked on the upper surface of the guide plate 42, the worker performs wiring along the bands of the wiring display marks 50a to 50f, so that the worker However, it becomes possible to work easily and reliably. Further, since guide claws 49a, 49b, 49c, and 49e are provided at appropriate positions on the guide plate 42, the guide claws 49a, 49b, 49c, and 49e are held in the middle of the connection cables 41a, 41b, 41c, and 41e. Thus, the connection cables 41a, 41b, 41c, and 41e can be easily routed, and the connection cables 41a, 41b, 41c, and 41e can be directed in an appropriate direction by the guide claws 49a, 49b, 49c, and 49e. . Accordingly, the connection workability of the connection cables 41a, 41b, 41c, 41e with respect to the pole terminals Tp, Tn can be improved by these.

  If the connection cables 41a to 41f are set to have different lengths, and a plurality of guide claws are projected on the routing track of the connection cables 41a to 41f on the guide plate 42, the connection cables When 41a to 41f are about to be mistakenly wired, it is possible to make the operator notice incorrect wiring due to the excess or shortage of the length of the connection cables 41a to 41f.

  Further, in the battery unit BU of this embodiment, since the guide plate 42 pressed against the upper surface of the battery modules 40A, 40B, 40C, 40D is formed of an insulating soft resin, a plurality of battery modules 40A, 40B are used. , 40C, 40D, even if the upper surface height varies, the variation is absorbed by the deformation of the guide plate 42, and the backlash of the battery modules 40A, 40B, 40C, 40D in the battery box 14 is reliably suppressed. Can do.

  In addition, the guide plate 42 can be provided with conductive terminals that are electrically connected to the electrode terminals Tp, Tn of the battery modules 40A, 40B, 40C, 40D on the lower surface side as terminal connection portions. Since the opening 48 is provided in the portion corresponding to the electrode terminals Tp, Tn on the guide plate 42 and the electrode terminals Tp, Tn are exposed upward through the opening 48, the structure of the guide plate 42 is simplified. There is an advantage that the product cost can be reduced.

In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary.
For example, in the above embodiment, the wiring display marks 50a to 50f and the guide claws 49a, 49b, 49c and 49e constitute the wiring guide means for guiding the wiring of the connection cables 41a to 41f. Only one of the wiring display marks 50a to 50f and the guide claws 49a, 49b, 49c, and 49e may be used. Further, a guide groove along the routing track of the connection cables 41a to 41f may be formed on the upper surface of the guide plate 42, and the connection cables 41a to 41f may be fitted into the guide grooves.

  In the above embodiment, the fuse box 54 is attached to the inner wall of the luggage box 23, and the head of the bolt 57 that fastens the fuse case 55 and the luggage box 23 together with the battery box 14 (box cover 28) is fixed. By setting the battery unit BU so as to be covered by the fuse 56, the battery unit BU is always removed after the fuse 56 is removed. However, an operator should remove the fuse 56 before disassembling the battery unit BU. For example, the structure shown in FIG. 15 and FIG.

Hereinafter, the structure of the modification shown in FIGS. 15 and 16 will be described. However, the same parts as those of the basic embodiment shown in FIGS.
FIG. 15 is a perspective view showing a battery unit BU of this modified example, and FIG. 16 is a cross-sectional view corresponding to the CC cross section of FIG.
In this modification, a fuse box 154 is integrally attached to the upper surface of the upper wall of the box cover 28 of the battery box 14. In the fuse box 154, a fuse case 55 connected to the connection cables 41c and 41f and a fuse 56 detachably attached to a terminal portion in the fuse case 55 are housed in a box cover 160 that covers them. The box cover 160 includes a bottom wall 160a and a lid portion 160b, and the bottom wall 160a and the lid portion 160b are assembled so as to be disassembled by screws or the like. A fuse case 55 is installed on the bottom wall 160a, and the fuse 56 is attached to and detached from the fuse case 55 with the lid portion 160b removed.

  The bottom wall 160a of the box cover 160 is fastened and fixed to the upper surface of the box cover 28 by a bolt 63 that fixes the box cover 28 and the box body 27 of the battery box 14 to each other. The head of the bolt 63 is covered at the upper side by a fuse 56 attached to a fuse case 55 as shown in FIG. For this reason, the bolt 63 can be removed only after the fuse 56 is removed from the fuse case 55.

  In the case of the structure of this modified example, the luggage case can be removed from above the battery unit BU before the fuse 56 is removed, but the box cover 28 of the battery box 14 is removed only after the fuse 56 is removed from the fuse case 55. Thus, the inside of the battery unit BU cannot be accessed. Therefore, in the case of this structure, it is possible to prompt the operator to remove the fuse 56 before disassembling the battery unit BU.

In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the above embodiment, the battery unit BU is applied to a scooter type electric two-wheeled vehicle, but a vehicle to be applied may be a three-wheeled vehicle or a four-wheeled vehicle as long as the vehicle is an electric saddle type vehicle .

14 Battery box
26, 63 bolt (fastening member)
40, 40B, 40C, 40D Battery module 41a to 41f Connection cable 42 Guide plate 43 Set plate (battery restraint member)
48 opening (terminal connection)
49a, 49b, 49c, 49e Guide claws (wiring guide means)
50a-50f Wiring display mark (wiring display section, wiring guide means)
54 Fuse box
55 Fuse case
56 Fuse BU Battery unit Tp, Tn Electrode terminal

Claims (7)

A plurality of battery modules (40A to 40D) having electrode terminals (Tp, Tn);
It has a box body (27) whose upper part is open, and a box cover (28) attached to the upper part of the box body (27) so that it can be opened and closed, and inside the battery modules (40A to 40D) A battery box (14) stored with the electrode terminals (Tp, Tn) facing the same side;
Inside the battery box (14), a plurality of wires connected to the electrode terminals (Tp, Tn) of the battery modules (40A to 40D) so as to connect all the battery modules (40A to 40D) in series . Connection cables (41a-41f);
A guide plate (42) attached across an end surface of the plurality of battery modules (40A to 40D) on the side where the electrode terminals (Tp, Tn) exist;
Connected to two connection cables (41c, 41f) for fuse connection respectively connected to electrode terminals (Tp, Tn) of different battery modules (40B, 40D), and the fuse (56) for the fuse case (55) A fuse box (54) for electrically disconnecting and connecting between the two connection cables (41c, 41f) by detachment;
A fastening member (27) that restricts the opening of the box cover (28) by tightening and releases the opening restriction of the box cover (28) by loosening ,
In the guide plate (42),
A terminal connection portion (48) for connecting the connection cables (41a-41f) to the electrode terminals (Tp, Tn) from a surface opposite to the side facing the plurality of battery modules (40A-40D);
Wire guide means for guiding the wiring of the connection cable corresponding in the plane of the opposite side (41a~41f) (49a, 49b, 49c, 49e, 50a~50f) and, is provided, et al is,
The fuse box (54) includes the box cover (28) so that the fuse (56) covers the upper side of the fastening member (27) when the fuse (56) is attached to the fuse case (55). The battery unit of the electric saddle-ride type vehicle, characterized in that the battery unit is disposed on the outside of the vehicle. The electric type according to claim 1, wherein the wiring guide means includes guide claws (49a, 49b, 49c, 49e) for holding the connection cables (41a to 41f) in a predetermined direction. Battery unit for saddle-ride type vehicles . 3. The electric type according to claim 1, wherein the wiring guide means includes a wiring display section (50 a to 50 f) that allows an operator to visually recognize the wiring direction of the connection cables (41 a to 41 f). Battery unit for saddle-ride type vehicles . The battery unit of the electric saddle riding type vehicle according to claim 3, wherein the wiring display portion is a guide groove in which the connection cables (41a to 41f) can be fitted. The said terminal connection part is an opening (48) which exposes the said electrode terminal (Tp, Tn) to the said reverse surface side of the said guide plate (42), Any one of Claims 1-4 characterized by the above-mentioned. A battery unit for an electric saddle-ride type vehicle according to claim 1. The battery unit of the electric saddle riding type vehicle according to any one of claims 1 to 5, wherein the guide plate (42) is formed of an insulating soft resin. A battery restraining member (43) for restraining the plurality of battery modules (40A to 40D) in the battery box (14);
The said battery restraint member (43) restrains these battery modules (40A-40D) in the said battery box (14) via the said guide plate (42), The battery box (14) is characterized by the above-mentioned. The battery unit of the electric saddle-ride type vehicle according to any one of the preceding claims.

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