JP5879956B2 - Connector and wire harness - Google Patents

Description

  The present invention relates to a connector having a seal member on the outer periphery, and a wire harness including the connector.

  Conventionally, a connector described in Patent Document 1 is known as a connector having a seal member mounted on an outer peripheral surface of a housing.

  The connector described in Patent Document 1 has a terminal connected to one end of the electric wire, a first housing molded around the electric wire and the connecting portion of the terminal, an electric wire insertion hole for inserting the electric wire, A second housing assembled along the axial direction with respect to the housing, and a seal member attached to the outer peripheral surface of the second housing are provided. Then, the axial movement of the seal member with respect to the first and second housings is restricted by sandwiching both sides in the axial direction by a pair of positioning portions respectively provided in the first housing and the second housing.

JP 2009-277377 A

  In the connector described in Patent Document 1, since the first housing is molded and then the electric wire cannot be inserted into the electric wire insertion hole of the second housing from the molded terminal side, the first housing and the second housing Is assembled, the other end of the electric wire is inserted into the electric wire insertion hole of the second housing, and the second housing is moved along the electric wire over almost the entire length of the electric wire, or one end of the electric wire is inserted in advance into the second housing. In this state, it is necessary to mold the first housing.

  In the former case, if the total length of the electric wire is long, it takes a lot of man-hours to move the second housing along the electric wire, and if similar connectors are provided at both ends of the electric wire, the assembly is performed according to this procedure. I can't do it. On the other hand, in the latter case, when molding the first housing, the second housing must be temporarily fixed to the electric wire, and man-hours for temporary fixing and releasing the temporary fixing are generated. In other words, there is a structural problem that extra man-hours are required regardless of which assembly procedure is employed.

  Therefore, an object of the present invention is to provide a connector and a wire harness that can be easily assembled and can prevent a seal member mounted on the outer surface of a housing from coming off.

In order to solve the above-mentioned problems, the present invention is arranged in a terminal connected to one end of an electric wire, an outer housing having a receiving portion for receiving at least a part of the terminal, and an inner portion of the outer housing. An inner housing, an annular seal member mounted on the outer surface of the housing portion, and a retaining member for retaining the seal member, wherein the housing portion is A first opening end provided on the side and a second opening end provided on the other side, and the terminal is inserted into the accommodating portion from the first opening end side, and the retaining member From the contact surface between the engagement portion that engages with the housing portion from the second opening end side in the direction opposite to the insertion direction of the terminal into the housing portion, and the seal member of the housing portion Also stick out the seal part Have a wall portion opposed to the side face of the containing portion includes a first cylindrical portion provided on said second open end, than the first cylindrical portion is provided on the first open end A second cylindrical portion, wherein the inner surface of the second cylindrical portion is farther away from the inner housing than the inner surface of the first cylindrical portion. A recessed recess is formed, the recess is formed closer to the first opening end than the seal member, and the engagement portion of the retaining member is an engagement protrusion that engages with the recess, And an elastically deformable connecting portion for connecting the engaging protrusion and the wall portion, and the inner housing has at least a part of the terminal and a fitting portion to be fitted to the receiving portion. and, the engaging projections, connectors to the direction of displacement is restricted by the fitting portion engaged with said recess is released To provide the data.

  Further, the accommodating portion is opposed to the wall portion via the seal member on an outer periphery between a first opening end into which the terminal is inserted and a second opening end into which the engagement portion is inserted. A first step surface that is formed on the first opening end side of the first step surface, and a second step surface formed on an outer peripheral side of the first step surface, When the receiving portion is received by the receiving portion of the mating connector, the second step surface may be opposed to the end surface of the receiving portion.

  Further, the terminal is formed such that the central axis of the electric wire connecting portion to which the electric wire is crimped is inserted into the housing portion and intersects the central axis of the contact portion that contacts the terminal of the mating connector. Good.

  Further, the electric wire may be a motor current supply electric wire that supplies a motor current to an electric motor as a drive source for driving the vehicle.

  Moreover, this invention provides the wire harness which has the connector in any one of said, and the electric wire to which the said terminal is connected for the purpose of solving the said subject.

  ADVANTAGE OF THE INVENTION According to this invention, the assembly which can be assembled | attached easily and can prevent the sealing member with which the outer surface of the housing was mounted | worn can be provided, and a wire harness can be provided.

The connector which concerns on embodiment of this invention, and the wire harness which has a connector are shown, (a) is a top view, (b) is a front view, (c) is the sectional view on the AA line of (a), (d ) Is a right side view, and (e) is a rear view. It is a perspective view which shows a terminal. It is a perspective view which shows a spring member. The third housing member is shown, (a) is a top view, (b) is a front view, (c) is a sectional view taken along line BB of (a), (d) is a right side view, and (e) is a rear view. It is. The sealing member is shown, (a) is a top view, (b) is a front view, and (c) is a sectional view taken along the line CC of (a). The retaining member is shown, (a) is a front view, (b) is a top view, (c) is a rear view, (d) is a side view, and (e) is a perspective view. (A) is an expanded sectional view which shows the state by which the 3rd housing member of the inner housing, the terminal, the seal member, and the retaining member were assembled | attached to the 1st housing member of the outer housing. (B) is sectional drawing which shows the structure of the other party connector 9 by which the connector 1 is fitted. It is sectional drawing which shows the state which the connector and the other party connector fitted. It is explanatory drawing which shows the procedure which attaches a sealing member and a retaining member to a 1st housing member. It is the disassembled perspective view which looked at the 1st housing member, the sealing member, the retaining member, and the 3rd housing member from the 2nd opening end side of the 1st housing member. FIG. 11 is an exploded perspective view of each member shown in FIG. 10 as viewed from the first opening end side of the first housing member 61. It is a disassembled perspective view which shows the state which accommodated the cylindrical part which is a part of terminal in the fitting part of a 3rd housing member with a 4th housing member, an O-ring, and a 2nd housing member.

[Embodiment]
Hereinafter, a connector and a wire harness according to an embodiment of the present invention will be described with reference to FIGS. This wire harness is used, for example, to supply a motor current to an electric motor as a driving source for running the vehicle.

  1A and 1B show a connector and a wire harness having a connector according to an embodiment of the present invention, where FIG. 1A is a top view, FIG. 1B is a front view, and FIG. FIG. 4D is a right side view, and FIG.

  The wire harness 100 includes three electric wires 10 and a connector 1 provided at one end of the electric wires 10. The connector 1 includes three terminals 2 connected to one end of each of the three electric wires 10, a housing 3 that holds the terminals 2, a seal member 4 that is attached to the housing 3, and a seal member 4 that is prevented from coming off. The retaining member 5 is provided.

  As illustrated in FIG. 1C, the electric wire 10 includes a core wire 11 made of a conductive metal such as copper, and a covering member 12 that covers the core wire 11. The core wire 11 is a stranded wire (parent stranded wire) formed by, for example, twisting together a plurality of child stranded wires obtained by twisting a plurality of conductor strands. In addition, although illustration is abbreviate | omitted, the connector 1 which has the same structure also in the other end part of the electric wire 10 is provided.

  For example, one of the pair of connectors 1 provided at both ends of the electric wire 10 is connected to an electric motor as a driving source for driving the vehicle, and the other is connected to a three-phase alternating current by switching by PWM (Pulse Width Modulation) control. Connected to the inverter to be generated. In this case, the electric wire 10 functions as a motor current supply electric wire that supplies a motor current to the electric motor.

  As shown in FIG. 1C, the housing 3 includes an outer housing 60 made of a conductive metal such as aluminum and an inner resin made of an insulating resin such as non-conductive PBT (Polybutylene terephthalate). And a housing 70. The inner housing 70 is disposed inside the outer housing 60.

  The outer housing 60 includes a first housing member 61 having a housing space for housing the inner housing 70, and a plate-like second housing member 62 that covers the housing space for the first housing member 61. The first housing member 61 and the second housing member 62 are fixed by a plurality of (four in this embodiment) bolts 64. Further, the first housing member 61 is formed with bolt holding portions 610 that protrude outward, and each bolt holding portion 610 has bolts 65 for fixing the connector 1 to the device side such as an inverter. It is held rotatably.

  The inner housing 70 includes a third housing member 71 having an accommodating space for accommodating the three terminals 2 therein, and a fourth housing member 72 fitted to the third housing member 71. The fourth housing member 72 functions as a lid that covers the accommodation space of the third housing member 71, and sandwiches the three electric wires 10 with the third housing member 71. An O-ring 631 is disposed between the fourth housing member 72 and the first housing member 61.

  The third housing member 71 is formed with a fitting portion 711 to be fitted into the accommodating portion 611 of the first housing member 61, and a part of the terminal 2 is accommodated in the fitting portion 711. The movement of the terminal 2 is restricted so as not to come out of the fitting portion 711 by an inward projection 721 formed on the fourth housing member 72. Details of the accommodating portion 611, the fitting portion 711, and the terminal 2 will be described later.

  A seal member 632 is disposed at a lead-out portion of the electric wire 10 from the connector 1, and a braided shield layer 81 and a cover member 82 that covers the braided shield layer 81 are fixed by a fastening ring 83.

  FIG. 2 is a perspective view showing the terminal 2. The terminal 2 has a cylindrical tubular portion 21 into which a mating terminal is inserted at one end, and has a wire connecting portion 23 to which one end of the electric wire 10 is connected at the other end. The wire connection portion 23 is connected to the connection portion 22. The cylindrical portion 21 is an example of a contact portion that contacts a terminal of the mating connector. As a material of the terminal 2, for example, a conductive metal such as carbon steel, stainless steel, copper, or copper alloy can be used. Further, the surface of the terminal 2 may be plated with tin or the like.

  The cylindrical portion 21 has a rectangular cross section in which four sides are formed from a bottom portion 211, a pair of side portions 212 and 213, and a ceiling portion 214. Four openings 21 a are formed in the corner portion between the ceiling portion 214 of the cylindrical portion 21 and the pair of side portions 212 and 213. In addition, a pair of ridges 211 b extending along the longitudinal direction of the tubular portion 21 are formed on the bottom portion 211 on the surface facing the ceiling portion 214.

The electric wire connection part 23 is an oval-shaped flat tube, and one end of the electric wire 10 is crimped by caulking. Terminal 2 is an L-type terminal and the central axis C ₂ of the central axis line C ₁ and the wire connection portion 23 of the cylindrical portion 21 intersect perpendicular to each other. The tubular portion 21 accommodates a spring member 24 described below.

  FIG. 3 is a perspective view showing the spring member 24. The spring member 24 connects the curved portion 240 formed by gently bending, the four L-shaped claw portions 241 locked to the opening 21 a of the terminal 2, and the curved portion 240 and the claw portion 241. The connecting portion 242 is integrally provided. The bending portion 240 presses the mating terminal against the pair of protrusions 211b due to its elasticity.

  4A and 4B show the third housing member 71, where FIG. 4A is a top view, FIG. 4B is a front view, FIG. 4C is a cross-sectional view along line B-B in FIG. e) is a rear view.

  The third housing member 71 includes a flat bottom portion 710a and a main body portion 710 formed of a side wall 710b standing on the periphery of the bottom portion 710a, and is formed so as to protrude perpendicular to the bottom portion 710a. It has integrally the fitting part 711 which accommodates the shape part 21. FIG. The fitting part 711 is formed in a bottomed cylindrical shape, and three slit-like openings 711a through which the mating terminals are inserted are formed in the bottom part. Two partition portions 711b are formed in the fitting portion 711, and the accommodating space of the cylindrical portion 21 of the adjacent terminal 2 is partitioned by the partition portion 711b. In FIGS. 4A and 4E, the partition wall 711b is indicated by a broken line.

  5A and 5B show the seal member 4, in which FIG. 5A is a top view, FIG. 5B is a front view, and FIG. 5C is a cross-sectional view taken along the line C-C in FIG.

  The seal member 4 is a belt-shaped ring-shaped elastic body having a pair of side surfaces 4c facing each other between the outer peripheral surface 4a and the inner peripheral surface 4b. The seal member 4 includes a main body part 40 having a rectangular cross section, a pair of protrusions 41 provided in parallel to each other on the outer peripheral side of the main body part 40, and a groove part 42 formed between the pair of protrusions 41. It has a unitary structure. The seal member 4 is made of synthetic rubber, for example, and can be expanded and contracted within a predetermined range.

  6A and 6B show the retaining member 5, wherein FIG. 6A is a front view, FIG. 6B is a top view, FIG. 6C is a rear view, FIG. 6D is a side view, and FIG.

  The retaining member 5 is made of, for example, a resin having elasticity, and is provided on a wall portion 51 of an annular plate body having a front (front) surface 51a and a back surface 51b facing in the thickness direction, and a back surface 51b of the wall portion 51. A plurality of (four in the present embodiment) engaging portions 52 erected so as to be orthogonal to each other are integrally provided. The engaging portion 52 includes a long plate-like connecting portion 521 having a base portion connected to the back surface 51 b of the wall portion 51, and an engaging protrusion 522 formed at the distal end portion of the connecting portion 521. The connecting portion 521 can be elastically deformed, and the engaging protrusion 522 and the wall portion 51 are elastically connected by the connecting portion 521.

  FIG. 7A shows a state in which the third housing member 71 of the inner housing 70, the terminal 2, the seal member 4, and the retaining member 5 are assembled to the first housing member 61 of the outer housing 60. It is sectional drawing to which a part of was expanded.

  The first housing member 61 has an accommodating portion 611 that accommodates the cylindrical portion 21 of the terminal 2 together with the fitting portion 711 of the third housing member 71. The accommodating portion 611 has a rectangular tube shape in which the inner diameter in the direction along the arrangement direction of the three terminals 2 is longer than the inner diameter in the direction orthogonal to this direction. The accommodating portion 611 is formed so as to protrude perpendicular to the bottom surface 61 a of the first housing member 61 facing the bottom portion 710 a of the third housing member 71. Hereinafter, the opening end on the base side (bottom surface 61a side) of the housing portion 611 is referred to as a first opening end 611a, and the opening end on the distal end side of the housing portion 611 is referred to as a second opening end 611b.

  The accommodating portion 611 has three cylindrical portions having different external dimensions. Hereinafter, the three cylindrical portions are referred to as a first cylindrical portion 612, a second cylindrical portion 613, and a third cylindrical portion 614 in order from the smallest outer dimension. The first cylinder portion 612 is provided on the second opening end 611 b side of the accommodating portion 611, and the third cylinder portion 614 is provided on the first opening end 611 a side of the accommodating portion 611. The second cylinder part 613 is provided between the first cylinder part 612 and the third cylinder part 614. Thereby, a step surface 612b as a first step surface and a step surface 613b as a second step surface are formed on the outer periphery of the accommodating portion 611 between the first opening end 611a and the second opening end 611b. Has been.

  The outer surface 612a of the first cylindrical portion 612 is a contact surface with which the inner peripheral surface 4b of the seal member 4 comes into contact. That is, the seal member 4 is attached to the outer surface 612a of the first cylinder portion 612. A step surface 612 b formed between the first cylinder portion 612 and the second cylinder portion 613 faces one side surface 41 c of the seal member 4.

  Further, the step surface 613b formed between the second tube portion 613 and the third tube portion 614 is formed closer to the first opening end 611a than the step surface 612b and on the outer periphery side of the step surface 612b. ing. The shape and size of the outer periphery of the step surface 612b are substantially the same as the shape and size of the inner periphery of the step surface 613b, and the second tube portion is between the step surface 612b and the step surface 613b. An outer surface 613a of 613 is interposed.

  A concave portion 611c is formed on a part of the second cylindrical portion 613 and the inner surface of the third cylindrical portion 614. The concave portion 611c is formed outward, that is, the second cylindrical portion 613 and the third cylindrical portion 614 are thinned. Yes. The engagement protrusion 522 of the retaining member 5 is engaged (engaged) with the recess 611c. The retaining member 5 is assembled so as not to be detached from the accommodating portion 611 by the engagement between the engagement protrusion 522 and the recess 611c.

  The engagement protrusion 522 is restricted from being displaced in the direction in which the engagement with the recess 611 c is released by the fitting portion 711 of the third housing member 71. That is, when the engagement protrusion 522 moves inward of the housing portion 611, the connecting portion 521 contacts the outer surface 711c of the fitting portion 711, and further elastic deformation of the connecting portion 521 is suppressed. As a result, in a state where the fitting portion 711 is fitted to the housing portion 611, the engagement between the engagement protrusion 522 and the recess 611c is not released.

  Further, the wall portion 51 of the retaining member 5 projects outward from the outer surface 612 a of the first tube portion 612, and the back surface 51 b faces the other side surface 41 c of the seal member 4. The step surface 612 b of the housing portion 611 faces the back surface 51 b of the retaining member 5 with the seal member 4 interposed therebetween. As a result, the seal member 4 is restricted by movement toward the first opening end 611a by contact with the step surface 612b and movement toward the second opening end 611b by contact with the back surface 51b. Has been.

  FIG. 7B is a cross-sectional view showing the configuration of the mating connector 9 to which the connector 1 is fitted. The mating connector 9 is provided, for example, at an output portion of an inverter that outputs a motor current to an electric motor. Further, the mating connector 9 may be provided on the input side of the electric motor.

  The mating connector 9 has a receiving portion 90 in which a space for receiving the accommodating portion 611 is formed, and a plate-like terminal 91 that contacts the terminal 2 by fitting the connector 1 and the mating connector 9. The inner surface 90a and the end surface 90c of the receiving portion 90 are formed so as to be orthogonal to each other, and a tapered surface 90b inclined with respect to the inner surface 90a and the end surface 90c is formed between the inner surface 90a and the end surface 90c. The tapered surface 90b has an inner diameter that increases toward the opening end on the connector 1 side, and functions to guide the connector 1 (retaining member 5) toward the inner surface 90a when the connector 1 is fitted to the mating connector 9. To do. The tapered surface 90b may be flat or curved.

  FIG. 8 is a cross-sectional view showing a state in which the connector 1 and the mating connector 9 are fitted. The connector 1 and the mating connector 9 are fitted to each other by inserting the housing portion 611 of the first housing member 61 assembled with the seal member 4 and the retaining member 5 into the receiving portion 90 and inserting the bolt 65 into the receiving portion 90. This is performed by screwing into a screw hole 901 formed in the above.

  When the connector 1 is fitted to the mating connector 9, the receiving portion 611 is received by the receiving portion 90, the outer peripheral surface 4a of the seal member 4 contacts the inner surface 90a of the receiving portion 90, and the receiving portion 611 and the receiving portion 90 are received. Between the inner surface 90a and the inner surface 90a is liquid-tightly sealed. The entire outer peripheral surface 4a of the seal member 4 faces the inner surface 90a. Further, a part of the outer surface 613a of the second cylindrical portion 613 on the seal member 4 side faces the inner surface 90a, and the other part faces the tapered surface 90b. The step surface 613b faces the end surface 90c.

  The plate-like terminal 91 is inserted into the tubular portion 21 of the terminal 2 accommodated in the fitting portion 711 through a part of the distal end side of the plate-like terminal 91 through the opening 711 a of the fitting portion 711. The plate-like terminal 91 is pressed against and contacts the protrusion 211 b by the elastic force of the spring member 24 and is electrically connected to the terminal 2.

(Connector 1 assembly procedure)
Next, a procedure for assembling the connector 1 will be described with reference to FIGS.

  FIG. 9 is an explanatory diagram showing a procedure for assembling the seal member 4 and the retaining member 5 to the first housing member 61. FIG. 10 is an exploded perspective view of the first housing member 61, the seal member 4, the retaining member 5, and the third housing member 71 as viewed from the second opening end 611 b side of the first housing member 61. 11 is an exploded perspective view of the members shown in FIG. 10 as viewed from the first opening end 611a side of the first housing member 61. As shown in FIG. FIG. 12 shows a state in which the tubular portion 21 that is a part of the terminal 2 is accommodated in the fitting portion 711 of the third housing member 71 together with the fourth housing member 72, the O-ring 631, and the second housing member 62. It is a disassembled perspective view.

  In assembling the connector 1, first, the seal member 4 is fitted on the outer surface 621 a of the first cylindrical portion 612 related to the first housing member 61, and then the retaining member 5 is assembled to the accommodating portion 611. The retaining member 5 is fixed to the accommodating portion 611 by inserting the engaging portion 52 into the accommodating portion 611 from the second opening end 611b of the accommodating portion 611 and engaging the engaging protrusion 522 with the concave portion 611c. Is done. That is, the retaining member 5 is engaged with and fixed to the accommodating portion 611 from the second opening end 611b side.

  After the seal member 4 and the retaining member 5 are assembled to the housing portion 611 as described above, the fitting portion 711 of the third housing member 71 is fitted into the housing portion 611, and the third housing is joined to the first housing member 61. The member 71 is assembled. As a result, the engagement between the engagement protrusion 522 and the recess 611c is not released.

  Next, the cylindrical portion 21 of the three terminals 2 in which one end of the electric wire 10 is crimped to the electric wire connecting portion 23 in advance is accommodated in the fitting portion 711. The cylindrical part 21 is inserted into the accommodating part 611 from the first opening end 611a. Thereafter, the fourth housing member 72, the O-ring 631, and the second housing member 62 are sequentially assembled to the first housing member 61. Thereby, the assembly of the connector 1 is completed.

  This assembling procedure is shown as an example, and the assembling procedure can be arbitrarily changed as long as the assembling is possible.

(Operation and effect of the embodiment)
According to the embodiment described above, the following operations and effects can be obtained.

(1) The cylindrical portion 21 of the terminal 2 is inserted into the accommodating portion 611 from the first opening end 611a side, and the retaining member 5 engages with the accommodating portion 611 from the second opening end 611b side. That is, the retaining member 5 is separate from the first housing member 61 and engages with the housing portion 611 from a direction opposite to the insertion direction of the tubular portion 21 into the housing portion 611, so that the electric wire 10 is accommodated in the housing portion. 611 does not need to be inserted. That is, unlike the conventional connector, there is no need to insert the electric wire through the insertion hole of the housing over the entire length, and the wire harness can be easily assembled.

(2) The retaining member 5 can be easily assembled without using an adhesive or the like, for example, because the engaging protrusion 522 is engaged with the concave portion 611c of the housing portion 611 by elastic deformation of the connecting portion 521. It is.

(3) Since the displacement of the engagement protrusion 522 in the direction in which the engagement of the engagement protrusion 522 with the recess 611 c is released is regulated by the third housing member 71, for example, when the connector 1 is detached from the mating connector 9. In addition, even if the retaining member 5 receives a force in the direction in which the retaining member 5 comes out of the housing portion 611 due to the frictional resistance between the seal member 4 and the inner surface 90 a of the receiving portion 90, the retaining member 5 can be prevented from coming out of the housing portion 611.

(4) Since the step surface 613b formed closer to the first opening end 611a than the step surface 612b contacts the end surface 90c of the receiving portion 90, the entire outer peripheral surface 4a of the seal member 4 is the entire inner surface. Opposite to 90a. Thereby, the sealing between the accommodating part 611 and the inner surface 90a can be performed reliably.

(5) terminal 2, since it is the L-shaped pin and the central axis C ₂ of the central axis line C ₁ and the wire connection portion 23 of the cylindrical portion 21 intersect perpendicular to each other, the end face 90c of the electric wire 10 is receiving unit 90 It is pulled out from the connector 1 in the direction along the line, and the electric wire 10 is suppressed from projecting in the direction intersecting the end surface 90c. Thereby, for example, when the wire harness 100 is mounted on a vehicle, the mounting property is improved. Further, when such an L-shaped terminal is employed, it is practically difficult to assemble a connector by inserting an electric wire with a crimped terminal into the insertion hole of the housing, but the connector 1 according to the present embodiment According to the configuration, even if the terminal 2 which is an L-shaped terminal is adopted, there is no problem in assembling.

(6) An electric wire that supplies a motor current to an electric motor for driving a vehicle has a certain length and has a larger diameter than, for example, an electric wire used for communication or the like in order to secure a current capacity. . Since such an electric wire has a low degree of freedom in handling, it is difficult to insert the electric wire into the insertion hole of the housing. However, according to the configuration of the connector 1 according to the present embodiment, the motor current supply Even if it is an electric wire, there is no problem in assembling.

  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.

  Moreover, although the said embodiment demonstrated the case where the terminal 2 was a female terminal, it is not restricted to this, A male terminal can also be applied as the terminal 2. FIG. Moreover, although the said embodiment demonstrated the case where the number of the electric wires 10 connected to the connector 1 was 3, not only this but 1 or 2 may be sufficient. Or four or more may be sufficient. There is no restriction | limiting in particular also about the use of the connector 1 and the wire harness 100. FIG.

Furthermore, in the above embodiment, the case where the terminal 2 is an L-shaped terminal and the housing 3 is also L-shaped in a side view has been described. However, the present invention is not limited to this, and the center of the cylindrical portion 21 of the terminal 2 A connector in which the axis C ₁ and the central axis C ₂ of the electric wire connection portion 23 are parallel to each other along the longitudinal direction of the electric wire 10 in the housing 3, and the accommodating portion 611 is formed along the longitudinal direction of the electric wire 10 in the housing 3. The present invention can also be applied to wire harnesses.

DESCRIPTION OF SYMBOLS 1 ... Connector, 2 ... Terminal, 3 ... Housing, 4 ... Sealing member, 4a ... Outer peripheral surface, 4b ... Inner peripheral surface, 4c ... Side surface, 5 ... Retaining member, 9 ... Counterpart connector, 10 ... Electric wire, 11 ... Core wire, 12 ... cover member, 21 ... cylindrical portion, 21a ... opening, 22 ... connecting portion, 23 ... wire connecting portion, 24 ... spring member, 40 ... main body portion, 41 ... projection, 41c ... side surface, 42 ... groove portion , 51 ... wall portion, 51 a ... front surface, 51 b ... back surface, 52 ... engaging portion, 60 ... outer housing, 61 ... first housing member, 61a ... bottom surface, 62 ... second housing member, 64, 65 ... bolt, 70 ... Inner housing, 71 ... Third housing member, 72 ... Second housing member, 81 ... Braided shield layer, 82 ... Cover member, 83 ... Fastening ring, 90 ... Receiving portion, 90a ... Inner surface, 90b ... Tapered surface, 90c ... End face, 91 ... 100 ... wire harness, 211 ... bottom, 211b ... projection, 212,213 ... side, 214 ... ceiling, 240 ... curved, 241 ... claw, 242 ... connecting part, 521 ... connecting part, 522 ... engaging protrusion, 610 ... bolt holding part, 611 ... accommodating part, 611a ... first opening end, 611b ... second opening end, 611c ... recessed part, 612 ... cylindrical part, 612a ... outer surface (contact surface), 612b ... Step surface, 613 ... Cylinder, 613a ... Outer surface, 613b ... Step surface, 614 ... Cylinder, 631 ... O-ring, 632 ... Seal member, 710 ... Main body, 710a ... Bottom, 710b ... Side, 711 ... Fitting parts, 711a ... opening, 711b ... partition wall, 711 c ... outer surface, 901 ... screw hole, _{C 1,} C 2 _... center axis

Claims (5)

A terminal connected to one end of the wire;
An outer housing having an accommodating portion that accommodates at least a part of the terminal, and an inner housing disposed inside the outer housing ;
An annular seal member mounted on the outer surface of the housing portion;
A retaining member for retaining the seal member;
The accommodating portion has a first opening end provided on one side and a second opening end provided on the other side,
The terminal is inserted into the accommodating portion from the first opening end side,
The retaining member includes an engagement portion that engages with the housing portion from the second opening end side in a direction opposite to a direction in which the terminal is inserted into the housing portion, and the seal member of the housing portion. projects outwardly from the contact surface have a wall portion opposed to the side surface of the sealing member,
The accommodating portion includes a first tube portion provided on the second opening end side, and a second tube portion provided on the first opening end side with respect to the first tube portion,
The second cylindrical portion is formed with a recess that is recessed such that the inner surface of the second cylindrical portion is farther from the inner housing than the inner surface of the first cylindrical portion,
The recess is formed closer to the first opening end than the seal member,
The engaging portion of the retaining member includes an engaging protrusion that engages with the concave portion, and an elastically deformable connecting portion that connects the engaging protrusion and the wall portion,
The inner housing has a fitting portion that accommodates at least a part of the terminal and is fitted to the housing portion,
The engagement protrusion is a connector in which displacement in a direction in which engagement with the recess is released is restricted by the fitting portion . The accommodating portion is disposed on the outer periphery between the first opening end into which the terminal is inserted and the second opening end into which the engaging portion is inserted, and is opposed to the wall portion via the seal member. A first step surface and a second step surface formed on the first opening end side of the first step surface and formed on an outer peripheral side of the first step surface;
When the receiving portion is received by the receiving portion of the mating connector, the second step surface faces the end surface of the receiving portion;
The connector according to claim 1 . The terminal is formed such that the central axis of the electric wire connecting portion to which the electric wire is crimped intersects with the central axis of the contact portion that is inserted into the accommodating portion and contacts the terminal of the mating connector.
The connector according to claim 1 or 2 . The electric wire is a motor current supply electric wire for supplying a motor current to an electric motor as a drive source for running the vehicle.
The connector according to any one of claims 1 to 3 . The connector according to any one of claims 1 to 4 ,
A wire harness having an electric wire to which the terminal is connected.

Images