JP2017188198A - Connector and wiring harness - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector which is downsized but facilitates measurement work of conductor resistance, and a wiring harness.SOLUTION: The present invention relates to a connector 1 comprising: a first connector part 2 including a first terminal 5 that is provided in an end of a cable 4 and a first outer housing 6 in which the first terminal 5 is accommodated; and a second connector part 3 including a second terminal 15 and a second outer housing 16 in which the second terminal 15 is accommodated. In a state where the first outer housing 6 and the second outer housing 16 are fitted, the first terminal 5 and the second terminal 15 are brought into contact and electrically connected. A notch 13 for probe insertion is formed at a position in the first outer housing 6 opposite to a distal end or a side face of the first terminal 5.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a connector and a wire harness.

  In a hybrid vehicle, an electric vehicle, or the like, a power harness that connects devices such as a motor and an inverter or between an inverter and a battery and transmits a large amount of power is used.

  As a connector used for such a power harness, a first connector portion having a first terminal provided at an end portion of a cable and a first outer housing in which the first terminal is accommodated, a second terminal, A two-part connector having a second connector portion having a second outer housing in which two terminals are accommodated is used.

  Patent Document 1 proposes a so-called L-shaped connector configured to extend a cable in a direction orthogonal to the fitting direction of both outer housings so that it can be attached even in a narrow space.

  In addition, there exists patent document 2 as other prior art document information relevant to invention of this application.

JP 2014-216136 A JP 2010-40265 A

  Incidentally, in the above-described hybrid vehicle, electric vehicle, and the like, in recent years, there is a demand for measuring the conductor resistance in the power harness for inspection after the power harness is disposed.

  Conventionally, when measuring the conductor resistance, after releasing the fitting between the first connector part and the second connector part, the direction of the first connector part is changed to expose the first terminal on the operator side ( That is, the direction of the first connector portion is changed so that the opening on the fitting side of the second connector portion in the first connector portion faces the worker side), and the probe of the inspection device (tester) is connected to the exposed first terminal. Needed to contact the needle.

  However, since the connector used for the power harness is disposed in a narrow space, it may be difficult to change the orientation of the first connector portion and expose the first terminal to the operator side. In particular, in the L-shaped connector as described above, when the probe is contacted from above the first connector portion (opposite the second connector), the first connector portion is exposed to expose the first terminal. It was necessary to invert the conductor resistance, and it was not easy to measure the conductor resistance.

  For example, by providing the first terminal so as to protrude forward from the first outer housing in the fitting direction, the probe can be brought into contact with the first terminal without largely changing the direction of the first connector portion. In this case, however, the whole connector becomes large, and it may be difficult to attach and detach the connector in a narrow space.

  Accordingly, an object of the present invention is to provide a connector and a wire harness that are small in size but easy in measuring conductor resistance.

  In order to solve the above problems, the present invention provides a first connector portion having a first terminal provided at an end portion of a cable, and a first outer housing in which the first terminal is accommodated. A second connector portion having a second terminal and a second outer housing in which the second terminal is accommodated, and the first outer housing and the second outer housing being fitted together A connector in which the first terminal and the second terminal are in contact with each other and electrically connected to each other at a position facing a tip or a side surface of the first terminal of the first outer housing. Provided is a connector in which an insertion notch is formed.

  Moreover, this invention provides the wire harness provided with the cable and the said connector for the purpose of solving the said subject.

  ADVANTAGE OF THE INVENTION According to this invention, the connector and wire harness which are easy to measure a conductor resistance while being small can be provided.

1 is a perspective view of a connector according to an embodiment of the present invention. It is a perspective view before the fitting in the connector of FIG. It is a figure which shows a 1st connector part, (a) is a perspective view, (b) is a fractured sectional view. It is a figure which shows a 1st connector part, (a) is a front view, (b) is the top view seen from the fitting direction front. (A)-(c) is a figure explaining the connection of a 1st terminal and a 2nd terminal. (A), (b) is a perspective view of a 2nd connector part. It is a side view of the connector at the time of performing a conductor resistance measurement operation.

[Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of a connector according to the present embodiment, and FIG. 2 is a perspective view before the fitting.

  As shown in FIGS. 1 and 2, the connector 1 is composed of a first connector portion 2 and a second connector portion 3. By fitting these connector portions 2 and 3, a plurality of power supply lines can be integrated. It is for connection.

  The first connector portion 2 is provided at the end of the cable 4, and the second connector portion 3 is fixed to a terminal block (not shown) of a device to which the cable 4 is to be connected. A wire harness 100 according to the present embodiment includes the cable 4 and the connector 1.

  In this Embodiment, the 1st connector part 2 is provided in the edge part of the cable 4 extended from the inverter or the battery, and the 2nd connector part 3 is provided in the terminal block of the battery or the inverter. By fitting both the connector portions 2 and 3, the inverter and the battery are electrically connected via the wire harness 100. In addition, the wire harness 100 may connect an inverter and a motor.

(Description of the first connector portion 2)
3A and 3B are diagrams showing the first connector portion 2, where FIG. 3A is a perspective view and FIG. 3B is a broken sectional view. 4A and 4B are diagrams showing the first connector portion 2, where FIG. 4A is a front view and FIG. 4B is a plan view seen from the front in the fitting direction.

  As shown in FIGS. 3 and 4, the first connector portion 2 has a first terminal 5 provided at an end portion of the cable 4 and a first outer housing 6 in which the first terminal 5 is accommodated. doing.

  In the present embodiment, the first outer housing 6 accommodates two first terminals 5 aligned in a direction perpendicular to the longitudinal direction of the cable 4. Two cables 4 are extended from the first outer housing 6, and first terminals 5 are provided at the ends of both cables 4. In the present embodiment, a direct current power signal transmitted between the inverter and the battery is transmitted to both first terminals 5 and both cables 4.

  The cable 4 includes a central conductor 4a made of a twisted wire conductor formed by twisting strands made of a good electrical conductor such as copper or aluminum, an insulator 4b coated on the outer periphery of the center conductor 4a, and an outer periphery of the insulator 4b. The outer conductor 4c is provided, and the sheath 4d is coated on the outer periphery of the outer conductor 4c. The outer conductor 4c is made of, for example, a braided shield obtained by braiding metal strands.

  Both the first terminals 5 are preferably made of metal such as silver, copper, or aluminum having high conductivity for the purpose of reducing power transmission loss in the connector 1.

  The first terminal 5 is formed in a caulking portion 5 a that is caulked and fixed to the center conductor 4 a of the cable 4, and a substantially rectangular tube shape (a rectangular tube shape with rounded corners), and the second terminal of the second connector portion 3. 15 (described later) and a connecting portion 5b that is electrically connected, and a connecting portion 5c that connects the caulking portion 5a and the connecting portion 5b are integrally configured.

  As shown in FIGS. 5A to 5C, the connection portion 5 b of the first terminal 5 is formed in a substantially rectangular shape in cross-sectional view, and includes a pair of long side walls 51 that are long sides, and a short side. And a pair of short side walls 52. The connecting portion 5 b of the first terminal 5 is arranged so that its axial direction (the short side direction and the direction perpendicular to the long side direction) coincides with the extending direction of the cable 4. The two first terminals 5 are arranged in the short side direction so that the long side walls 51 face each other.

  A terminal insertion through hole 53 for inserting the second terminal 15 is formed in the short side wall 52 on one side of the connection portion 5b (on the insertion side of the second connector portion 3). In addition, a leaf spring 54 that presses the second terminal 15 inserted from the terminal insertion through hole 53 against the inner wall of one of the long side walls 51 is provided inside the connection portion 5b (see FIG. 3 ( In FIG. 4B and FIG. 4B, the leaf spring 54 is omitted). In the present embodiment, two rib-like contact protrusions 55 projecting inward are integrally provided on the inner wall of the long side wall 51 against which the second terminal 15 is pressed. The contact protrusion 55 is formed in a line shape along the insertion direction of the second terminal 15, and its top and corners are formed in a rounded shape. By providing the contact protrusion 55, the force for pressing the second terminal 15 by the leaf spring 54 can be concentrated on the portion where the second terminal 15 and the contact protrusion 55 are in contact with each other. It is possible to suppress an increase in connection resistance due to the occurrence of a gap in the connection portion with the terminal 5 and to suppress loss in the connector 1.

  Returning to FIGS. 3 and 4, the first outer housing 6 may be formed of a metal such as aluminum having high electrical conductivity and thermal conductivity for lightness of shielding performance, heat dissipation, and weight reduction of the connector 1. preferable.

  The first outer housing 6 integrally includes a main body portion 6a having a substantially rectangular parallelepiped shape (a rectangular parallelepiped shape with one open surface) and a cable holding portion 6b covering the periphery of the cable 4 extending from the main body portion 6a. .

  The main body 6 a connects a pair of side walls 61 arranged opposite to each other, a first connection wall 62 that connects one side ends of both side walls 61, and the other side ends of both side walls 61. The end portions of both side walls 61 and both connecting walls 62.63 so as to close one opening of the frame composed of the second connecting wall 63, the both side walls 61 and both connecting walls 62, 63. A bottom wall 64 to be connected is integrally formed, and the second connector portion 3 (second outer housing 16) is opened from the other opening of the frame body constituted by both side walls 61 and both connection walls 62 and 63. Configured to insert.

  In the present embodiment, the cable 4 extends from the second connection wall 63, and the connector 1 has both outer housings 6, 16 in a direction intersecting with the extending direction of the cable 4 (here, a direction orthogonal). Are configured to fit.

  The cable holding portion 6 b is formed in a double cylindrical shape connecting two hollow cylindrical bodies, and one end thereof is connected to the second connection wall 63. Moreover, the hollow part of the cable holding part 6b is connected with the hollow part of the main-body part 6a, and the cable 4 is each penetrated by the hollow part. The cable holding portion 6b is provided with a wire seal 7 that seals the space between the inner wall of the cable holding portion 6b and the sheath 4d of the cable 4 in a watertight manner. Moreover, the cap 8 for suppressing the drop-off of the wire seal 7 is provided so as to block the other end of the cable holding portion 6b.

  A shield contact 9 for electrically connecting the outer conductor 4 c of the cable 4 and the first outer housing 6 is provided on the outer periphery of the cable 4 closer to the first terminal 5 than the wire seal 7. The cable 4 has an outer conductor 4c folded at the outer periphery of the sheath 4d at the end, and a cylindrical shield contact 9 is provided on the outer periphery of the folded outer conductor 4c by caulking or the like. The outer peripheral part of the shield contact 9 is in contact with the inner wall of the cable holding part 6 b, and the external conductor 4 c and the first outer housing 6 are electrically connected via the shield contact 9. The shield contact 9 also serves to regulate the movement of the wire seal 7 toward the first terminal 5 side. The shield contact 9 is made of a metal such as aluminum or a copper alloy. The metal is plated with gold, silver, nickel, tin or the like.

  Between the housings that tightly seal between the outer housings 6 and 16 along the ends of the side wall 61 and the connecting walls 62 and 63 on the insertion side of the second connector portion 3 (the insertion side of the second outer housing 16). A seal member 21 is provided. The inter-housing seal member 21 is provided along the inner walls of the side walls 61 and the connecting walls 62 and 63 and along the end of the opening side.

  The inter-housing seal member 21 is fixed to the first outer housing 6 by a seal fixing member 22 attached to the first outer housing 6. The seal fixing member 22 is made of an insulating resin, and covers the periphery of the end portions on the opening side of both side walls 61 and both connecting walls 62, 63 (on the opening side of both side walls 61 and both connecting walls 62, 63). At the end portion, the inner wall, the end surface, and the outer wall are collectively covered). In the seal fixing member 22, the distal end portion (the end portion on the bottom wall 64 side) of the portion disposed on the inner walls of the both side walls 61 and the connecting walls 62 and 63 interferes with the inter-housing seal member 21, and The movement of the inter-seal member 21 to the opening side is restricted, thereby preventing the inter-housing seal member 21 from falling off.

  The portions of the seal fixing member 22 arranged along the outer walls of the both side walls 61 are respectively formed with locking holes 22a penetrating the seal fixing member 22, and the both side walls 61 are formed in the locking holes 22a. The seal fixing member 22 is attached to the first outer housing 6 by locking the locking protrusions 22b provided so as to protrude sideways from the first outer housing 6.

  Further, the first connector portion 2 has a first inner housing 10 that is fixed to the first outer housing 6 and holds both the first terminals 5. The first inner housing 10 is made of, for example, an insulating resin such as PPS (polyphenylene sulfide) resin, PPA (polyphthalamide) resin, PA (polyamide) resin, PBT (polybutylene terephthalate), or epoxy resin.

  The first inner housing 10 is fixed to the inner wall of the bottom wall 64 in the main body portion 6 a of the first outer housing 6 with bolts 11. The first inner housing 10 has two housing portions 10 a that house the end portions of the cables 4 and the first terminals 5.

  The first inner housing 10 at a position facing the terminal insertion through-hole 53 of the connection portion 5b of the first terminal 5 is provided with a terminal insertion hole 10b for allowing the second terminal 15 to pass therethrough. The terminal insertion hole 10b communicates with the housing portion 10a and is formed so as to open on the side opposite to the bottom wall 64 (insertion side of the second terminal 15). The corners around the opening of the terminal insertion hole 10b are chamfered so that the second terminal 15 can be easily inserted. Note that the terminal insertion hole 10b is formed to have a size such that the operator's finger cannot be inserted (the operator cannot touch the first terminal 5). The first inner housing 10 has a role of fixing the first terminal 5 to the first outer housing 6 while ensuring insulation between the first terminal 5 and the first outer housing 6, and an operator touches the first terminal 5. It also serves as a touch protector that prevents electric shock.

  The first inner housing 10 is provided with an HVIL connector insertion portion 10c into which an HVIL connector 18 described later is inserted. The HVIL connector insertion portion 10c is provided with a U-shaped connection terminal 12. When both the connector portions 2 and 3 are fitted and the HVIL connector 18 is inserted into the HVIL connector insertion portion 10c, the HVIL connector 18 Two built-in terminals (not shown) are configured to be electrically connected via the connection terminal 12. A fitting detection unit (not shown) connected to the HVIL connector 18 detects whether the two terminals built in the HVIL connector 18 are electrically connected via the connection terminal 12, thereby providing both connector units. It is comprised so that it may detect whether 2 and 3 are fitted.

  In the present embodiment, both connector portions 2 and 3 are configured to be fixed by fixing bolts 20. The fixing bolt 20 is provided so as to penetrate the bottom wall 64 of the main body portion 6a of the first outer housing 6 and the first inner housing 10, and the tip portion thereof is provided so as to protrude forward in the fitting direction. Yes. Although not shown here, the space between the fixing bolt 20 and the first outer housing 6 (bottom wall 64) is between the fixing bolt 20 and the first outer housing 6 (bottom wall 64). A bolt side seal member is provided for watertight sealing.

  In the present embodiment, the first outer housing 6 is formed with a notch 13 for inserting a probe for making a probe of an inspection device (tester) (not shown) easily contact the first terminal 5. The first inner housing 10 is formed with a probe insertion through hole 14 for inserting a probe. Details of the notch 13 and the probe insertion through hole 14 will be described later.

(Description of second connector portion 3)
FIGS. 6A and 6B are perspective views of the second connector portion 3.

  As shown in FIGS. 6A and 6B, the second connector portion 3 includes a second terminal 15 and a second outer housing 16 in which the second terminal 15 is accommodated.

  In the present embodiment, two second terminals 15 are accommodated in the second outer housing 16 in an aligned manner. In the present embodiment, a direct current power signal transmitted between the inverter and the battery is transmitted to both the second terminals 15. For the purpose of reducing power transmission loss in the connector 1, the second terminal 15 may be made of a metal having a high conductivity such as silver, copper, or aluminum, or an alloy such as a copper alloy or an aluminum alloy.

  The second terminal 15 is connected to a connection portion 15a electrically connected to the first terminal 5 (connection portion 5b) of the first connector portion 2 and a power line (not shown) extending from the battery or the inverter. And the device-side connecting portion 15b. The connection portion 15 a is accommodated in the second outer housing 16, and the device side connection portion 15 b extends to the outside of the second outer housing 16. The device-side connection portion 15b is formed with a connection hole 15c for fixing a terminal provided at an end portion of a power supply line extended from the battery or the inverter. The connecting portion 15a is formed in a plate shape, and the corner portion at the tip thereof is easily inserted into the terminal insertion hole 10b of the first inner housing 10 and the terminal insertion through hole 53 of the first terminal 5. Therefore, chamfering is applied.

  The second outer housing 16 is preferably formed of a metal such as aluminum having high electrical conductivity and thermal conductivity and light weight for shielding performance, heat dissipation, and weight reduction of the connector 1. The second outer housing 16 is formed by integrally forming a main body portion 16a having a substantially rectangular parallelepiped shape (a rectangular parallelepiped shape having one open surface) and a flange portion 16b provided integrally with the main body portion 16a.

  The main body portion 16 a connects a pair of side walls 65 arranged opposite to each other, a first connection wall 66 that connects one side end portions of both side walls 65, and the other side end portions of both side walls 65. The end portions of both side walls 65 and both connecting walls 66.67 are closed so as to block one opening of the frame composed of the second connecting wall 67, both side walls 65, and both connecting walls 66, 67. The bottom wall 68 to be connected is integrally formed, and the end portion on the other opening side of the frame body constituted by the both side walls 65 and the both connection walls 66 and 67 is the first connector portion 2 (first It is configured to be inserted into the outer housing 6). When the two connector portions 2 and 3 are fitted together, the end portions of the side walls 61 and 66 of the outer housings 6 and 16, the end portions of the first connecting walls 62 and 66, and the second connecting walls 63 and 67 are connected. The ends are configured to face each other.

  In the present embodiment, when the outer housings 6 and 16 are fitted together, the first outer housing 6 is configured to be the outer side and the second outer housing 16 is configured to be the inner side. It is also possible to configure so that the first outer housing 6 is on the inner side and the second outer housing 16 is on the outer side. However, when the connector 1 is used, if the first connector portion 2 is disposed on the upper side and the second connector portion 3 is disposed on the lower side, water may accumulate in the gap between the outer housings 6 and 16. In order to suppress it, it can be said that it is desirable to configure the first outer housing 6 disposed on the upper side to be on the outside.

  Bolt holes 69 for screwing the fixing bolts 20 are formed in the bottom wall 68 of the main body portion 16a. By fitting both the outer housings 6 and 16 and screwing the fixing bolts 20 into the bolt holes 69, the both outer housings 6 and 16 are fixed.

  The flange portion 16b is provided so as to protrude outward (sideward) from both side walls 65 and both connection walls 66.67, and the end portion on the bottom wall 68 side of both side walls 65 and both connection walls 66.67. Is provided. The flange portion 16b is formed with four bolt holes 16c for bolting the flange portion 16b to a terminal block of a device (here, a battery).

  The second connector portion 3 has a second inner housing 17 that is fixed to the second outer housing 16 and holds the second terminals 15. The second inner housing 17 is made of, for example, an insulating resin such as PPS (polyphenylene sulfide) resin, PPA (polyphthalamide) resin, PA (polyamide) resin, PBT (polybutylene terephthalate), or epoxy resin.

  The second inner housing 17 is fixed to the outer wall of the bottom wall 64 in the main body portion 16 a of the second outer housing 16 by bolts 23. The second terminal 15 is provided integrally with the second inner housing 17 by, for example, insert molding. The second inner housing 17 is provided on the outer side of the second outer housing 16 (on the side opposite to the fitting side of the first connector 2), and protrudes from the main body portion 17a. A projecting portion 17b inserted into the second outer housing 16 through a through hole 16d formed in the bottom wall 68 of the outer housing 16 is integrally formed. The connecting portion 15a of the second terminal 15 is inserted into the second outer housing 16 through the through hole 16d together with the protruding portion 17b.

  In the present embodiment, the second inner housing 17 has two protrusions 17b formed in a substantially L shape when viewed from the front in the fitting direction (as viewed from the side opposite to the bottom wall 68). Both projecting portions 17 b are provided so as to be interposed between the corresponding connecting portions 15 a of the second terminals 15 and the side walls 65 and the first connecting walls 66 of the second outer housing 16.

  The protruding portion 17b is interposed between the second terminal 15 and the second outer housing 16, and serves to secure insulation between the second terminal 15 and the second outer housing 16, and to fit both the connector portions 2 and 3. The first inner housing 10 is guided to align the outer housings 6 and 16, and the first terminal 5 (connection portion 5b) exposed by the probe insertion through hole 14 and the second are exposed. It is interposed between the outer housing 16 and also serves to ensure insulation between the first terminal 5 and the second outer housing 16. The projecting portion 17b guides the first inner housing 10 when the two connector portions 2 and 3 are fitted together. For example, when the first connector portion 2 is inserted in an inclined state, the projecting portion 17b defines the insertion direction. It also plays a role of correcting in the direction (vertical direction in FIG. 2).

  The second inner housing 17 projects from the main body portion 17a to the opposite side of the second outer housing 16, and has three partition walls 17c that are arranged at equal intervals so as to be integrated with the main body portion 17a. The device side connection portions 15b of the second terminals 15 are respectively disposed between the partition walls 17c.

  On the flange portion 16b around the main body portion 17a of the second inner housing 17, a device-side seal that seals between the flange portion 16b and the outer wall of the terminal block in a watertight manner when the flange portion 16b is attached to the battery terminal block. A member 19 is provided. The device-side seal member 19 is provided so as to cover the periphery of the main body portion 17 a of the second inner housing 17. 17a), the device-side seal member 19 is prevented from falling off.

  An HVIL connector 18 is attached to the second inner housing 17. The tip of the HVIL connector 18 is inserted into the second outer housing 16 through a through hole 16 e formed in the bottom wall 68 of the second outer housing 16.

(Fitting of the first connector part 2 and the second connector part 3)
When fitting both the connector portions 2 and 3, the tip end portion (the end portion opposite to the flange portion 16 b) of the main body portion 16 a of the second outer housing 16 is used as the opening of the main body portion 6 a of the first outer housing 6. Insert into. At this time, the projecting portion 17b of the second inner housing 17 guides the first inner housing 10, and the position adjustment of both the outer housings 6 and 16 is performed. Thereafter, when the bolt hole 69 is screwed into the fixing bolt 20, the outer housings 6 and 16 are fixed to each other in a fitted state. The outer housings 6 and 16 are sealed in a watertight manner by the inter-housing seal member 21.

  When the outer housings 6 and 16 are fitted together, the tip of the second terminal 15 passes through the terminal insertion hole 10 b of the first inner housing 10 and the terminal insertion through hole 53 of the first terminal 5, thereby The first terminal 5 and the second terminal 15 are electrically connected by being inserted into the connection portion 5 b of the terminal 5 and pressed against the inner wall (contact protrusion 55) of the connection portion 5 b by the leaf spring 54.

  When the outer housings 6 and 16 are fitted, the tip of the HVIL connector 18 is inserted into the HVIL connector insertion portion 10c of the first inner housing 10, and the two terminals built in the HVIL connector 18 are U-shaped. Are electrically connected via a connection terminal 12 in the form of a ring. Thereby, it is detected in the fitting detection part connected to the HVIL connector 18 that the two terminals built in the HVIL connector 18 are electrically connected, and both the connector parts 2 and 3 are fitted. Is detected.

(Explanation of probe insertion notch 13 and probe insertion through hole 14)
As shown in FIGS. 3 and 4, in the connector 1 according to the present embodiment, a probe insertion notch 13 is formed at a position facing the tip or side surface of the first terminal 5 of the first outer housing 6. Yes.

  The probe insertion notch 13 is used to bring the probe of the inspection device (tester) into contact with the first terminal 5 when measuring the conductor resistance in the wire harness 100 for inspection. It is formed so as to open to the insertion side of the outer housing 6.

  By forming the probe insertion notch 13 at a position facing the first terminal 5 of the first outer housing 6, the probe can be easily inserted into the first outer housing 6 via the probe insertion notch 13. It is possible to measure the conductor resistance of the wire harness 100 by inserting it into the first terminal 5 and bringing it into contact with the first terminal 5.

  In the present embodiment, the probe insertion notch 13 is formed across the first connecting wall 62 and both side walls 61. In addition, by forming the probe insertion notch 13, both the outer housings 6 are arranged such that the end surfaces of the side walls 61 on the insertion side of the second outer housing 16 approach the bottom wall 64 as they approach the first connection wall 62. , 16 with respect to the fitting direction.

  In other words, in the present embodiment, the protruding length of the first connecting wall 62 from the bottom wall 64 is shorter than the protruding length of the second connecting wall 63 from the bottom wall 64, and both side walls 61 are The lower ends of the connecting walls 63 are inclined so as to connect the lower ends thereof.

  For example, a concave notch may be formed as the probe insertion notch 13, but in this case, the shape of the inter-housing seal member 21 that seals between the outer housings 6 and 16 becomes complicated, and the inter-housing seal The structure for fixing the member 21 is also complicated, which may increase the cost. By tilting the lower end portion of the side wall 61 as in this embodiment, the shape of the inter-housing seal member 21 can be simplified, and a waterproof structure between the outer housings 6 and 16 can be easily realized. .

  The second outer housing 16 is formed so as to be inclined so that the upper end portions of both side walls 65 approach the bottom wall 68 closer to the second connecting wall 67 so as to correspond to the shape of the first outer housing 6. Yes. In the second outer housing 16, the protruding length of the first connecting wall 66 from the bottom wall 68 is longer than the protruding length of the second connecting wall 67 from the bottom wall 68. The upper end portions of 66 and 67 are inclined so as to be connected to each other.

  In the present embodiment, since the first terminal 5 is accommodated in the first inner housing 10, the position facing the probe insertion notch 13 of the first inner housing 10 (probe insertion notch 13. The probe insertion through hole 14 penetrating the first inner housing 10 is formed at a position exposed by the above. The probe insertion through-hole 14 is formed in a size such that the operator's finger cannot be inserted (the operator cannot touch the first terminal 5). Thus, the first inner housing 10 can easily detect through the probe insertion through-hole 14 while realizing a touch protection function that suppresses an electric shock caused by an operator touching the first terminal 5. The needle can be brought into contact with the first terminal 5 and the work of measuring the conductor resistance of the wire harness 100 is facilitated.

  In the present embodiment, the probe insertion through-hole 14 is formed on the side opposite to the extending side of the cable 4 (the front end side of the first terminal 5 and the first connecting wall 62 side), and the extending side of the cable 4 It is formed so as to open on the opposite side. Accordingly, as shown in FIG. 7, after the fitting of the two connector portions 2 and 3 is released, the tip end portion (the end portion on the first connecting wall 62 side) of the first connector portion 2 is lifted upward (second By separating from the connector portion 3), the probe insertion through-hole 14 can be easily exposed, and the conductor resistance can be easily measured even in a narrow space.

  In the present embodiment, the probe insertion through hole 14 is formed on the first connecting wall 62 side. However, the present invention is not limited to this, and the probe insertion through hole 14 may be formed on the side wall 61 side. However, in this case, since the probe insertion through holes 14 are formed on both sides of the first inner housing 10, the orientation of the first connector portion 2 is changed when the first terminal 5 to be measured is changed. Need to change. As in the present embodiment, the probe insertion through hole 14 is formed on the side opposite to the extending side of the cable 4 so that the probe insertion through holes 14 corresponding to the first terminals 5 are aligned. It becomes possible to form the first connector portion 2 when changing the first terminal 5 to be measured.

  In the present embodiment, the probe insertion through hole 14 is a short side wall 52 on the second terminal 15 insertion side in the connection portion 5b of the first terminal 5 (the short side wall in which the terminal insertion through hole 53 is formed). 52) is formed in the first inner housing 10 at a position facing the front end surface. When the probe is inserted from the probe insertion through hole 14, the probe comes into contact with the distal end surface of the short side wall 52 of the connecting portion 5b.

  In the present embodiment, a probe insertion through hole 14 is formed in the first inner housing 10, and the first terminal 5 is exposed from the probe insertion through hole 14. Therefore, in a state where both the connector portions 2 and 3 are fitted, the first terminal 5 comes close to the first connection wall 66 of the second outer housing 16. Therefore, in the present embodiment, the protruding portion 17b of the second inner housing 17 is connected to the first terminal 5 (opening of the probe insertion through hole 14) and the first terminal 5 in a state where the outer housings 6 and 16 are fitted. 2 between the outer housings 16. That is, the protruding portion 17 b of the second inner housing 17 plays a role of maintaining insulation between the first terminal 5 and the second outer housing 16 in a state where both the connector portions 2 and 3 are fitted.

(Operation and effect of the embodiment)
As described above, in the connector 1 according to the present embodiment, the probe insertion notch 13 is formed at a position facing the tip or side surface of the first terminal 5 of the first outer housing 6.

  By forming the probe insertion notch 13, the probe of the inspection apparatus is connected to the first terminal 5 via the probe insertion notch 13 even when the connector 1 is arranged in a narrow space. It becomes possible to make contact easily, and the work of measuring the conductor resistance of the wire harness 100 is facilitated. In the present embodiment, since the probe insertion slot is secured by forming the probe insertion notch 13 in the first outer housing 16, for example, the first outer housing 16 is moved forward in the fitting direction from the first outer housing 16. It is not necessary to increase the size of the connector 1 in order to make the probe easily come into contact with the terminal, for example, and the entire connector 1 can be kept small. That is, according to the present embodiment, it is possible to realize a connector 1 that is small in size but easy in measuring conductor resistance.

(Summary of embodiment)
Next, the technical idea grasped from the embodiment described above will be described with reference to the reference numerals in the embodiment. However, the reference numerals and the like in the following description are not intended to limit the constituent elements in the claims to the members and the like specifically shown in the embodiments.

[1] A first connector portion having a first terminal (5) provided at an end of the cable (4) and a first outer housing (6) in which the first terminal (5) is accommodated. A second connector portion (3) having (2), a second terminal (15), and a second outer housing (16) in which the second terminal (15) is accommodated, In a state in which the first outer housing (6) and the second outer housing (16) are fitted, the first terminal (5) and the second terminal (15) are in contact with each other and electrically connected. A probe insertion notch (13) is formed at a position facing the tip or side surface of the first terminal (5) of the first outer housing (6). Connector (1).

[2] The first outer housing (6) includes a pair of side walls (61) arranged to face each other and a first connection wall (62) connecting one side end portions of the both side walls (61). ), A second connecting wall (63) connecting the other side ends of the both side walls (61), the both side walls (61) and the both connecting walls (62, 63). A side wall (61) and a bottom wall (64) for connecting ends of the connecting walls (62, 63) so as to block one opening of the frame body, and the other side of the frame body The second outer housing (16) is inserted through the opening, and the probe insertion notch (13) is formed on the first connecting wall (62) and the both side walls (61). The end surfaces of the both side walls (61) on the insertion side of the second outer housing (16) are The connector according to [1], which is inclined with respect to the fitting direction of the outer housings (6, 16) so as to approach the bottom wall (64) as it approaches the first connection wall (62). 1).

[3] The cable (4) extends from the second connecting wall (63), and the outer housings (6, 16) are fitted in a direction intersecting the extending direction of the cable (4). The connector (1) according to [2], which is configured to be mated.

[4] Watertight between the outer housings (6, 16) along the insertion side ends of the second outer housing (16) of the both side walls (61) and the connecting walls (62, 63). The connector (1) according to [2] or [3], wherein an inter-housing seal member (21) for sealing is provided.

[5] The first outer housing (6) is made of metal, and the first connector portion (2) is fixed to the first outer housing (6), and holds the first terminal (5). It has a first inner housing (10) made of resin, and penetrates through the first inner housing (10) at a position facing the probe insertion notch (13) of the first inner housing (10). The connector (1) according to any one of [1] to [4], wherein a probe insertion through hole (14) is formed.

[6] The cable (4) is extended from the second connection wall (63), and the probe insertion through hole (14) is on the opposite side of the extension side of the cable (4). The connector (1) according to [5], which is formed.

[7] The second outer housing (16) is made of metal, and the second connector portion (3) is fixed to the second outer housing (16), and holds the second terminal (15). A second inner housing (17) made of a resin, and the second inner housing (17) is connected to the first terminal (5) and the Connector (1) given in any 1 paragraph of [1] thru / or [6] arranged between the 2nd outer housings (16).

[8] A wire harness (100) comprising a cable (4) and the connector (1) described in any one of [1] to [7].

  While the embodiments of the present invention have been described above, the embodiments described above do not limit the invention according to the claims. In addition, it should be noted that not all the combinations of features described in the embodiments are essential to the means for solving the problems of the invention.

  The present invention can be appropriately modified and implemented without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the case where the fitting direction of the two connector portions 2 and 3 is orthogonal to the extending direction of the cable 4 is described. , 3 and the extending direction of the cable 4 are also applicable.

DESCRIPTION OF SYMBOLS 1 ... Connector 2 ... 1st connector part 3 ... 2nd connector part 4 ... Cable 5 ... 1st terminal 6 ... 1st outer housing 61 ... Side wall 62 ... 1st connection wall 63 ... 2nd connection wall 64 ... Bottom wall 10 ... First inner housing 13 ... Probe insertion notch 14 ... Probe insertion through-hole 15 ... Second terminal 16 ... Second outer housing 17 ... Second inner housing 21 ... Inter-housing seal member 22 ... Seal fixing member 100 ... Wire harness

Claims (8)

A first connector portion having a first terminal provided at an end portion of the cable, and a first outer housing in which the first terminal is accommodated;
A second connector portion having a second terminal and a second outer housing in which the second terminal is accommodated;
In the state in which the first outer housing and the second outer housing are fitted, the first terminal and the second terminal are in contact with each other and electrically connected,
A probe insertion notch is formed at a position facing the tip or side surface of the first terminal of the first outer housing.
connector. The first outer housing connects a pair of side walls opposed to each other, a first connection wall that connects one side end portions of the both side walls, and the other side end portions of the both side walls. A second connecting wall, and a bottom wall that connects the both side walls and the ends of the both connecting walls so as to block one opening of the frame formed by the both side walls and the both connecting walls. , And is configured to insert the second outer housing from the other opening of the frame,
The probe insertion notch is formed across the first connection wall and the side walls,
The end surfaces on the insertion side of the second outer housings of the both side walls are inclined with respect to the fitting direction of the outer housings so as to approach the bottom wall as they approach the first connection wall.
The connector according to claim 1. The cable extends from the second connecting wall;
The outer housings are configured to fit in a direction intersecting with the extending direction of the cable.
The connector according to claim 2. An inter-housing seal member that provides a watertight seal between the two outer housings is provided along the end portions on the insertion side of the second outer housing of the both side walls and the both connecting walls.
The connector according to claim 2 or 3. The first outer housing is made of metal;
The first connector portion includes a first inner housing made of an insulating resin that is fixed to the first outer housing and holds the first terminal.
A probe insertion through-hole penetrating the first inner housing is formed at a position facing the probe insertion notch of the first inner housing.
The connector according to any one of claims 1 to 4. The cable extends from the second connecting wall;
The probe insertion through hole is formed on the opposite side of the cable extension side,
The connector according to claim 5. The second outer housing is made of metal,
The second connector portion has a second inner housing made of an insulating resin that is fixed to the second outer housing and holds the second terminal,
The second inner housing is disposed between the first terminal and the second outer housing in a state where both the outer housings are fitted.
The connector according to any one of claims 1 to 6. Cable and
A connector according to any one of claims 1 to 7,
Wire harness.

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