JP6701894B2 - Connector and wire harness - Google Patents

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 a device such as an inverter and a battery and transmits a large amount of power is used.

  As a connector used for such an electric power harness, a first connector portion having a first terminal provided at an end portion of a cable and a first outer housing accommodating the first terminal, a second terminal and a first connector portion. A two-part connector having a second connector portion having a second outer housing accommodating two terminals 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 the connector can be mounted even in a narrow space.

  As another prior art document information related to the invention of this application, there is Patent Document 2.

JP, 2014-216136, A JP, 2010-40265, A

  By the way, in the above-mentioned hybrid vehicle, electric vehicle, and the like, in recent years, there is a demand to measure the conductor resistance in the power harness for inspection after disposing the power harness.

  Conventionally, when measuring the conductor resistance, after the fitting between the first connector portion and the second connector portion is released, the orientation of the first connector portion is changed to expose the first terminal to the operator side ( That is, the orientation 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 exposed first terminal is searched for by the inspection device (tester). Needed to contact the needle.

  However, since the connector used for the power harness is arranged in a narrow space, it may be difficult to change the direction of the first connector portion to 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 (on the side opposite to the second connector), the first connector portion is exposed to expose the first terminal. It was necessary to invert, and the work of measuring the conductor resistance was not easy.

  Note that, for example, by providing the first terminal so as to project forward from the first outer housing in the fitting direction, the probe can be brought into contact with the first terminal without significantly changing the orientation of the first connector portion. However, in this case, the size of the entire connector may be increased, and it may be difficult to attach/detach the connector in a narrow space.

  Therefore, it is an object of the present invention to provide a connector and a wire harness which are small in size and whose conductor resistance measurement work is easy.

In order to solve the above problems, the present invention provides a first terminal provided at an end of a cable, a first outer housing made of metal in which the first terminal is housed, and the first outer. A first connector part fixed to the housing and having a first inner housing made of an insulating resin for holding the first terminal, a second terminal, and a second metal made of a metal housing the second terminal. A second connector portion having an outer housing and a second inner housing fixed to the second outer housing and made of an insulating resin for holding the second terminals; and a second connector portion having the first outer housing and the first outer housing. A connector in which the first terminal and the second terminal are in contact with and electrically connected to each other in a state in which the second outer housing is fitted, the first outer housing and the second outer housing in a direction perpendicular to the fitting direction of the said first outer housing of the first terminal position opposed to, are probe insertion cutout formed, the probe insertion of the first inner housing A probe insertion through hole penetrating the first inner housing is formed at a position facing the notch for use, and the second inner housing is provided with the both outer housings in a fitted state. There is provided a connector arranged between an opening of a through hole for inserting a probe and the second outer housing .

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

  According to the present invention, it is possible to provide a connector and a wire harness which are small in size and whose conductor resistance is easily measured.

It is a perspective view of the connector which concerns on one embodiment of this invention. It is a perspective view before fitting in the connector of FIG. It is a figure which shows a 1st connector part, (a) is a perspective view, (b) is a fracture|rupture 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 a connector at the time of conducting 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 this embodiment, and FIG. 2 is a perspective view before the fitting thereof.

  As shown in FIGS. 1 and 2, the connector 1 is composed of a first connector section 2 and a second connector section 3, and by fitting these connector sections 2 and 3 together, a plurality of power supply lines can be collectively formed. It is for connecting.

  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 connected. The wire harness 100 according to the present embodiment includes the cable 4 and the connector 1.

  In the present embodiment, the first connector portion 2 is provided at the end of the cable 4 extended from the inverter or the battery, and the second connector portion 3 is provided at the terminal block of the battery or the inverter. The inverter and the battery are electrically connected via the wire harness 100 by fitting the two connector portions 2 and 3. The wire harness 100 may connect the inverter and the motor.

(Description of the first connector portion 2)
3A and 3B are views showing the first connector portion 2, in which FIG. 3A is a perspective view and FIG. 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 of the cable 4 and a first outer housing 6 in which the first terminal 5 is housed. is doing.

  In the present embodiment, the two first terminals 5 are housed in the first outer housing 6 aligned in the direction orthogonal to the longitudinal direction of the cable 4. Two cables 4 extend from the first outer housing 6, and first terminals 5 are provided at the ends of both cables 4, respectively. In the present embodiment, the DC power supply signal transmitted between the inverter and the battery is transmitted to both first terminals 5 and both cables 4.

  The cable 4 includes a center conductor 4a made of a stranded wire conductor formed by twisting wires made of a good electric conductor such as copper or aluminum, an insulator 4b covered on the outer circumference of the center conductor 4a, and an outer circumference of the insulator 4b. The external conductor 4c is provided, and the sheath 4d that covers the outer periphery of the external conductor 4c is provided. The outer conductor 4c is, for example, a braided shield in which metal element wires are braided together.

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

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

  As shown in FIGS. 5A to 5C, the connecting portion 5b of the first terminal 5 is formed in a substantially rectangular shape in a sectional view, and has a pair of long side walls 51 that are long sides and a short side. It has a pair of short side walls 52. The connecting portion 5b of the first terminal 5 is arranged such that its axial direction (direction perpendicular to the short side direction and the long side direction) matches 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 (the insertion side of the second connector portion 3). Further, inside the connecting portion 5b, a leaf spring 54 for pressing the second terminal 15 inserted from the terminal insertion through hole 53 against the inner wall of the one long side wall 51 is provided (see FIG. 3( (b) and FIG.4(b), the leaf spring 54 is abbreviate|omitted and shown). In the present embodiment, two rib-shaped contact protrusions 55 protruding 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 the top and corners thereof are formed in a rounded shape. By providing the contact protrusion 55, the force 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 formation 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 a high electrical conductivity and a high thermal conductivity for the purpose of shielding performance, heat dissipation and reducing the weight 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 in which one surface is open), and a cable holding portion 6b that covers the periphery of the cable 4 extended from the main body portion 6a. ..

  The main body portion 6a connects a pair of side walls 61 arranged to face each other, a first connecting wall 62 connecting one side end portions of the both side walls 61, and the other side end portions of the both side walls 61. The end portions of both side walls 61 and both connecting walls 62.63 are arranged so as to close one opening of the frame body formed by the second connecting wall 63 and the side wall 61 and both connecting walls 62, 63. A bottom wall 64 for connection is integrally provided, 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, 63. It is configured to be inserted.

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

  The cable holding portion 6b is formed in a double-tube shape in which two hollow cylindrical bodies are connected, and one end thereof is connected to the second connecting wall 63. Further, the hollow portion of the cable holding portion 6b communicates with the hollow portion of the main body portion 6a, and the cables 4 are inserted into the hollow portion. The cable holding portion 6b is provided with a wire seal 7 that watertightly seals between the inner wall of the cable holding portion 6b and the sheath 4d of the cable 4. A cap 8 is provided to prevent the wire seal 7 from falling off so as to close the other end of the cable holding portion 6b.

  A shield contact 9 for electrically connecting the outer conductor 4c 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 back to the outer periphery of the sheath 4d at its 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 portion of the shield contact 9 is in contact with the inner wall of the cable holding portion 6b, and the outer conductor 4c and the first outer housing 6 are electrically connected via the shield contact 9. The shield contact 9 also plays a role of restricting 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. Further, the metal is plated with gold, silver, nickel, tin or the like.

  Between the outer side walls 61 and the connecting walls 62, 63 along the insertion side of the second connector part 3 (insertion side of the second outer housing 16), a watertight seal between the outer housings 6, 16 is provided. 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 opening-side ends thereof.

  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 opening-side ends of the side walls 61 and the connecting walls 62, 63 (the opening of the side walls 61 and the connecting walls 62, 63). It is provided so as to cover the inner wall, the end surface, and the outer wall collectively). In the seal fixing member 22, the tip portions (end portions on the bottom wall 64 side) of the portions arranged on the inner walls of the both side walls 61 and the connecting walls 62, 63 interfere with the inter-housing seal member 21 and the housing. The movement of the inter-sealing member 21 to the opening side is regulated, which prevents the inter-housing sealing member 21 from falling off.

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

  Further, the first connector portion 2 has a first inner housing 10 which 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 of 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 ends of the cables 4 and the first terminals 5.

  A terminal insertion hole 10b for inserting the second terminal 15 is provided in 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. The terminal insertion hole 10b is formed so as to communicate with the housing portion 10a and open on the side opposite to the bottom wall 64 (the side on which the second terminal 15 is inserted). The corners around the opening of the terminal insertion hole 10b are chamfered so that the second terminal 15 can be easily inserted. The terminal insertion hole 10b is formed to 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 touching the first terminal 5 while touching the first terminal 5. It also has the role of touch protection to prevent electric shock.

  Further, 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, and when both 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 is inserted into the HVIL connector 18. Two built-in terminals (not shown) are configured to be electrically connected via the connection terminal 12. The 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 to detect both connector units. It is configured to detect whether 2 and 3 are fitted.

  In this embodiment, both connector portions 2 and 3 are configured to be fixed by the fixing bolt 20. The fixing bolt 20 is provided so as to penetrate through 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 project forward in the fitting direction. There is. Although illustration is omitted here, between the fixing bolt 20 and the first outer housing 6 (bottom wall 64), between the fixing bolt 20 and the first outer housing 6 (bottom wall 64) is provided. A bolt side sealing member that seals in a watertight manner is provided.

  In the present embodiment, the first outer housing 6 is provided with a probe insertion notch 13 for facilitating contact of the probe of an inspection device (tester) (not shown) with the first terminal 5. Further, 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.

(Explanation of the 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 has a second terminal 15 and a second outer housing 16 that houses the second terminal 15.

  In the present embodiment, the second outer housing 16 accommodates the two second terminals 15 aligned. In the present embodiment, the DC power signal transmitted between the inverter and the battery is transmitted to both the second terminals 15. 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 for the purpose of reducing power transmission loss in the connector 1.

  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 supply line (not shown) extended from a battery or an inverter. The device-side connection portion 15b is integrally formed. The connection portion 15 a is housed in the second outer housing 16, and the device-side connection portion 15 b extends outward from the second outer housing 16. The device-side connection portion 15b is formed with a connection hole 15c for bolting a terminal provided at an end of a power supply line extending from a battery or an inverter. The connection portion 15a is formed in a plate shape, and the terminal insertion hole 10b of the first inner housing 10 and the terminal insertion through hole 53 of the first terminal 5 can be easily inserted into the corner portion of the tip portion thereof. In order to be

  The second outer housing 16 is preferably made of a metal such as aluminum, which has a high electric conductivity and a high thermal conductivity so as to have a high shielding property, a high heat dissipation property and a light weight 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 with one surface open) and a flange portion 16b provided integrally with the main body portion 16a.

  The main body portion 16a connects a pair of side walls 65 arranged to face each other, a first connecting wall 66 connecting 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 arranged so as to close one opening of the frame body formed by the second connecting wall 67, the side wall 65 and both connecting walls 66, 67. The bottom wall 68 to be connected is integrally provided, and the other opening-side end of the frame body constituted by the side walls 65 and the connecting walls 66 and 67 has 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 and the end portions of the first connecting walls 62 and 66, and the second connecting walls 63 and 67, respectively. The ends are configured to face each other.

  In the present embodiment, the first outer housing 6 is on the outer side and the second outer housing 16 is on the inner side when the outer housings 6 and 16 are fitted together, but the present invention is not limited to this. It is also possible 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, when the first connector portion 2 is arranged on the upper side and the second connector portion 3 is arranged on the lower side, water may be accumulated in the gap between the outer housings 6, 16. In order to suppress, it can be said that it is desirable to configure the first outer housing 6 arranged on the upper side to be the outer side.

  A bolt hole 69 for screwing the fixing bolt 20 is formed in the bottom wall 68 of the main body portion 16a. Both outer housings 6, 16 are fixed by fitting both outer housings 6, 16 and screwing the fixing bolt 20 into the bolt hole 69.

  The flange portion 16b is provided so as to project outward (sideward) from the side walls 65 and the connecting walls 66.67, and the end portions of the side walls 65 and the connecting walls 66.67 on the bottom wall 68 side. It is provided in. The flange portion 16b is formed with four bolt holes 16c for fixing the flange portion 16b to a terminal block of a device (here, a battery) by bolts.

  Further, 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 of the main body portion 16 a of the second outer housing 16 by the bolt 23. The second terminal 15 is provided integrally with the second inner housing 17 by insert molding, for example. The second inner housing 17 is provided outside the second outer housing 16 (on the side opposite to the fitting side of the first connector 2 ), and is provided so as to project from the main body 17 a. The outer housing 16 is integrally formed with a protrusion 17b inserted into the second outer housing 16 through a through hole 16d formed in the bottom wall 68 of the outer housing 16. The connecting portion 15a of the second terminal 15 is inserted into the second outer housing 16 via the through hole 16d together with the protruding portion 17b.

  In the present embodiment, the second inner housing 17 has two projecting portions 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 17b are provided so as to be interposed between the corresponding connecting portion 15a of the second terminal 15 and the side wall 65 and the first connecting wall 66 of the second outer housing 16.

  The protruding portion 17b is interposed between the second terminal 15 and the second outer housing 16 to ensure the insulation between the second terminal 15 and the second outer housing 16, and to fit the two connector portions 2 and 3 together. At this time, the first inner housing 10 is guided to align the outer housings 6 and 16, and the first terminal 5 (connecting portion 5b) and the second terminal 5 exposed through the probe insertion through hole 14 described later It is provided between the outer housing 16 and 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 fitting the two connector portions 2 and 3 so that the insertion direction is defined when the first connector portion 2 is inserted in an inclined state, for example. It also plays a role of correcting in the direction (vertical direction in FIG. 2).

  In addition, the second inner housing 17 integrally has three partition walls 17c that project from the main body portion 17a to the side opposite to the second outer housing 16 and are arranged at equal intervals. The device-side connection portions 15b of the second terminals 15 are arranged 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 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 terminal block of the battery. A member 19 is provided. The device-side sealing member 19 is provided so as to cover the periphery of the main body portion 17a of the second inner housing 17, and a part of the device-side sealing member 19 covers the second outer housing 16 and the second inner housing 17 (main body portion). 17a) so that 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 16e formed in the bottom wall 68 of the second outer housing 16.

(Fitting of the 1st connector part 2 and the 2nd connector part 3)
When fitting the two connector portions 2 and 3, the tip portion of the main body portion 16a of the second outer housing 16 (the end portion on the side opposite to the flange portion 16b) is opened in the main body portion 6a of the first outer housing 6. To insert. At this time, the protruding portion 17b of the second inner housing 17 guides the first inner housing 10 to adjust the positions of the outer housings 6 and 16. Then, 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 space between the outer housings 6 and 16 is water-tightly sealed by the inter-housing seal member 21.

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

  When the outer housings 6 and 16 are fitted together, 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. They are electrically connected via the connection terminals 12 in the shape of a circle. As a result, the fitting detection unit connected to the HVIL connector 18 detects that the two terminals built in the HVIL connector 18 are electrically connected, and the two connector units 2 and 3 are fitted together. Is detected.

(Explanation of the notch 13 for inserting the probe and the through hole 14 for inserting the probe)
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. There is.

  The probe insertion notch 13 is for contacting the probe of the inspection device (tester) with the first terminal 5 when measuring the conductor resistance of 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 through the probe insertion notch 13. It becomes 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. By forming the notch 13 for inserting the probe, both outer housings 6 are formed such that the end surfaces of the side walls 61 on the insertion side of the second outer housing 16 are closer to the bottom wall 64 as they are closer to the first connecting wall 62. , 16 are inclined 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 the side walls 61 are The lower ends of the connecting walls 63 are formed so as to be inclined so as to connect the lower ends thereof.

  For example, it is conceivable to form a concave notch 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 is formed. There is a possibility that the structure for fixing the member 21 becomes complicated and the cost is increased. By inclining the lower end of the side wall 61 as in the present embodiment, the shape of the inter-housing seal member 21 can be simplified, and the waterproof structure between the outer housings 6 and 16 can be easily realized. .

  The second outer housing 16 is formed such that the upper ends of both side walls 65 of the second outer housing 16 are inclined so as to approach the bottom wall 68 as they approach the second connecting wall 67 so as to correspond to the shape of the first outer housing 6. There is. 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, and the side walls 65 are both connecting walls. The upper ends of 66 and 67 are formed to be inclined so as to connect the upper ends to each other.

  Further, in the present embodiment, since the first terminal 5 is housed in the first inner housing 10, the position (the notch for probe insertion 13 that is opposed to the notch for probe insertion 13 of the first inner housing 10 is opposed. A probe insertion through hole 14 that penetrates the first inner housing 10 is formed at a position (exposed by). The probe insertion through hole 14 is formed to a size such that the operator's finger cannot be inserted (the operator cannot touch the first terminal 5 ). As a result, the first inner housing 10 realizes the function of touch protection that prevents the operator from being touched by the first terminal 5 and receiving an electric shock, while easily searching through the probe insertion through hole 14. 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 becomes easy.

  In the present embodiment, the probe insertion through hole 14 is formed on the side opposite to the extension side of the cable 4 (the tip side of the first terminal 5 and the first connection wall 62 side), and the extension side of the cable 4 is formed. It is formed so as to open on the opposite side. As a result, as shown in FIG. 7, after the fitting of both connector portions 2 and 3 is released, the tip end portion of the first connector portion 2 (the end portion on the side of the first connecting wall 62) is lifted upward (second portion). 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, but 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. There is a need to change. As in the present embodiment, by forming the probe insertion through holes 14 on the side opposite to the extension side of the cable 4, the probe insertion through holes 14 corresponding to both the first terminals 5 are aligned. Therefore, it is not necessary to change the direction of 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 the short side wall 52 on the second terminal 15 insertion side of 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 on 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 tip surface of the short side wall 52 of the connecting portion 5b.

  In the present embodiment, the 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, the first terminal 5 comes close to the first connecting wall 66 of the second outer housing 16 when the two connector parts 2 and 3 are fitted together. Therefore, in the present embodiment, the protruding portion 17b of the second inner housing 17 and the first terminal 5 (opening of the probe insertion through hole 14) and the first terminal 5 (opening of the probe insertion through hole 14) are in a state where the outer housings 6 and 16 are fitted together. It is arranged between the two outer housings 16. That is, the protruding portion 17b of the second inner housing 17 plays a role of maintaining the 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 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 the side surface of the first terminal 5 of the first outer housing 6.

  By forming the probe insertion notch 13, even when the connector 1 is arranged in a narrow space, the probe of the inspection device is connected to the first terminal 5 through the probe insertion notch 13. It is possible to easily make contact with each other, which facilitates the work of measuring the conductor resistance of the wire harness 100. In the present embodiment, since the probe insertion notch 13 is formed in the first outer housing 16 to secure the probe insertion port, for example, the first outer housing 16 is provided with It is not necessary to increase the size of the connector 1 in order to make it easier for the probe to come into contact, such as by protruding the terminals, and the overall size of the connector 1 can be kept small. That is, according to the present embodiment, it is possible to realize the connector 1 which is small in size and whose conductor resistance measurement work is easy.

(Summary of Embodiments)
Next, the technical idea understood from the above-described embodiment will be described with reference to the reference numerals and the like in the embodiment. However, each symbol and the like in the following description is 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 part having a first terminal (5) provided at an end of the cable (4) and a first outer housing (6) accommodating the first terminal (5). (2), a second terminal (15), and a second connector portion (3) having a second outer housing (16) accommodating the second terminal (15), When the first outer housing (6) and the second outer housing (16) are fitted to each other, the first terminal (5) and the second terminal (15) are in contact with each other and electrically connected to each other. A connector (1) having a probe insertion notch (13) 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) has a pair of side walls (61) arranged to face each other, and a first connecting 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), and the both side walls (61) and the both connecting walls (62, 63). A side wall (61) so as to close one opening of the frame body and a bottom wall (64) connecting the ends of the connecting walls (62, 63) to each other. The second outer housing (16) is configured to be inserted through the opening, and the probe insertion notch (13) is formed in 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 formed to extend closer to the bottom wall (64) as they approach the first connecting wall (62). The connector (1) according to [1], which is inclined with respect to the fitting direction of the outer housings (6, 16).

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

[4] Along the both side walls (61) and the connecting walls (62, 63) along the insertion side ends of the second outer housing (16), watertightness is provided between the outer housings (6, 16). 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 has an insulating property for holding the first terminal (5). It has a first inner housing (10) made of resin, and penetrates 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], in which a through hole (14) for inserting a probe is formed.

[6] The cable (4) extends from the second connecting wall (63), and the probe insertion through hole (14) is provided on the side opposite to 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 has an insulating property for holding the second terminal (15). It has a second inner housing (17) made of resin, and the second inner housing (17) is connected to the first terminal (5) in the state where the outer housings (6, 16) are fitted together. The connector (1) according to any one of [1] to [6], which is arranged between the second outer housing (16).

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

  Although the embodiment of the invention has been described above, the embodiment described above does not limit the invention according to the claims. It should be noted that not all combinations of the 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 both connector parts 2 and 3 is orthogonal to the extending direction of the cable 4 has been described, but the present invention is not limited to this, and the present invention is not limited to this. It is also applicable to the case where the fitting directions of the cables 3 and 3 and the extending direction of the cable 4 are the same.

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... 1st 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 (7)

A first terminal provided at an end of the cable, a first outer housing made of a metal housing the first terminal, and an insulating material fixed to the first outer housing to hold the first terminal. A first connector portion having a first inner housing made of resin ;
A second terminal, a second outer housing made of a metal housing the second terminal, a second inner housing fixed to the second outer housing and made of an insulating resin that holds the second terminal, A second connector portion having
A connector in which the first terminal and the second terminal are in contact with and electrically connected to each other in a state where the first outer housing and the second outer housing are fitted to each other,
A notch for inserting a probe is formed in the first outer housing at a position facing the first terminal in a direction perpendicular to the fitting direction of the first outer housing and the second outer housing. Cage ,
A probe insertion through hole that penetrates the first inner housing is formed at a position facing the probe insertion notch of the first inner housing,
The second inner housing is arranged between the opening of the probe insertion through-hole and the second outer housing when the outer housings are fitted together.
connector. The first outer housing connects a pair of side walls arranged to face each other, a first connecting wall connecting one side end portions of the both side walls, and another side end portion of the both side walls. A second connecting wall, and a bottom wall connecting end portions of the both side walls and the both connecting walls so as to close one opening of a frame body 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 body,
The notch for inserting the probe is formed across the first connecting wall and the both side walls,
An end surface of the both side walls on the insertion side of the second outer housing is inclined with respect to the fitting direction of the outer housings so that the end surfaces of the both side walls are closer to the bottom wall as they are closer to the first connecting wall.
The connector according to claim 1. The cable extends from the second connecting wall,
It is configured to fit both outer housings in a direction intersecting with the extending direction of the cable,
The connector according to claim 2. A housing-to-housing seal member that seals the outer housings in a watertight manner is provided along the ends of the both side walls and the connecting walls on the insertion side of the second outer housing.
The connector according to claim 2 or 3. The cable extends from the second connecting wall,
The probe insertion through-hole is formed on the side opposite to the extension side of the cable,
The connector according to any one of claims 2 to 4 . The probe insertion through-hole is formed at a position that protrudes forward from the first outer housing in the fitting direction when fitting the second outer housing.
The connector according to any one of claims 1 to 5 . Cable,
A connector according to any one of claims 1 to 6 ;
Wire harness.

Images