JP2014157732A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector capable of preventing a reverse assembly state of an elastic seal member and a support member without increasing the cost of manufacture.SOLUTION: A connector 11 includes: a terminal 21 having an electric connection part 41; a connector housing 15 having a terminal housing chamber 13; an annular terminal rubber 23 which is attached around the electric connection part 41 and is adhered to an outer peripheral surface 57 of the electric connection part 41 and an inner peripheral wall surface 59 of the terminal housing chamber 13; and an annular terminal spacer 25. The terminal spacer 25, having higher rigidity than the terminal rubber 23, includes a spacer locking section 69 whose movement forward is regulated relative to a blocking step section 65 disposed behind the inner peripheral wall surface 59. The electric connection part 41 includes an engaging section 55 engaged with the terminal spacer 25 from behind. The terminal rubber 23 is disposed adjacent to the terminal spacer 25 locked by the engaging section 55 in front of the terminal spacer 25.

Description

  The present invention relates to a connector.

2. Description of the Related Art A connector having a waterproof structure that prevents liquid such as water and oil from entering a terminal housing chamber of a connector housing is known (for example, see Patent Document 1).
A connector 501 shown in FIG. 5A is attached to a terminal 505 having a rectangular plate-like electrical connection portion 503, a connector housing 509 having a terminal accommodating chamber 507 into which the terminal 505 is inserted, and the electrical connection portion 503. An annular elastic seal member 515 that is in close contact with the outer peripheral surface 511 of the electrical connection portion 503 and the inner peripheral wall surface 513 of the terminal accommodating chamber 507 (see FIG. 6A), and an annular support member through which the electrical connection portion 503 is inserted. 517. The support member 517 has higher rigidity than the elastic seal member 515. The electrical connection portion 503 has an engagement portion 519 that engages with the support member 517 from behind in the insertion direction of the terminal 505 into the terminal accommodating chamber 507. As shown in FIG. 5B, the elastic seal member 515 is provided adjacent to the front side of the support member 517 locked to the engaging portion 519.

  According to the connector 501, the elastic seal member 515 is supported from the back by the support member 517 locked by the engaging portion 519 of the electrical connection portion 503, and the backward movement of the elastic seal member 515 with respect to the electrical connection portion 503 is prevented. Can do. Thereby, the sealing performance between the outer peripheral surface 511 of the electrical connection portion 503 and the inner peripheral wall surface 513 of the terminal accommodating chamber 507 can be ensured. Since the support member 517 is higher in rigidity than the elastic seal member 515, the engagement margin between the support member 517 and the engagement portion 519 is set to prevent the support member 517 from retracting due to the engagement with the engagement portion 519. The size is smaller than that of the elastic seal member 515. Accordingly, an increase in the size of the terminal 505 can be avoided, a reduction in the cross-sectional area of the electrical connection portion 503 can be suppressed, and an allowable current that can be passed through the terminal 505 can be maintained.

JP 2010-153142 A

However, as shown in FIG. 6A, the support member 517 and the elastic seal member 515 are attached to the electrical connection portion 503 in the reverse direction, and the support member is provided on the front side of the elastic seal member 515 locked to the engagement portion 519. If 517 is provided adjacently, the elastic seal member 515 is shown in FIG. 6B due to the insertion resistance applied to the elastic seal member 515 when the terminal 505 is inserted into the terminal accommodating chamber 507 of the connector housing 509. The edge part 521 of the joint part 519 may be overcome and the waterproof function may be lost. In addition, since the elastic seal member 515 directly contacts the edge portion 521 of the engaging portion 519, the elastic seal member 515 is damaged and the waterproof function is lost. Further, if the support member 517 and the elastic seal member 515 are attached to the connector housing 509 while being reversely assembled to the terminal 505 and become a wire harness sub-assembly, the support member 517 and the elastic seal member 515 are reversed. There is no means to detect the assembled state.
For this reason, in order to prevent the reverse assembly state of the support member 517 and the elastic seal member 515, an inspection process for inspecting only the mounting order is required immediately after the attachment of these members, resulting in an increase in manufacturing cost. There was a problem.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a connector capable of preventing the reversely assembled state of the elastic seal member and the support member without causing an increase in manufacturing cost.

The above object of the present invention is achieved by the following configuration.
(1) A terminal having a rectangular plate-shaped electrical connection portion, a connector housing having a terminal accommodating chamber into which the terminal is inserted, an outer peripheral surface of the electrical connection portion, and the terminal accommodation. An annular elastic seal member that is in close contact with the inner peripheral wall surface of the chamber, and an annular support member through which the electrical connection portion is inserted, the support member having higher rigidity than the elastic seal member, and A locking portion that is engaged from behind in the insertion direction of the terminal with respect to a locking step provided at the rear of the inner peripheral wall surface and is restricted from moving forward relative to the inner peripheral wall surface; The electrical connection portion has an engagement portion that engages with the support member from behind along the insertion direction of the terminal, and the elastic seal member is a front side of the support member that is locked to the engagement portion. It is provided adjacent to connector.

  According to the connector having the configuration (1), when the elastic seal member and the support member are reversely assembled to the electrical connection portion of the terminal, the elastic seal member is first attached from the front end side of the electrical connection portion, and then The support member is attached. When the terminal reversely assembled in the order of the support member and the elastic seal member from the front end side is inserted into the terminal housing chamber of the connector housing, the support member is first inserted into the terminal housing chamber. The locking portion of the support member is engaged with a locking step provided at the rear of the wall surface, and the support member is restricted from moving forward further. At this time, the elastic seal member is disposed in a state of being sandwiched between the support member and the engaging portion of the terminal. For this reason, the insertion depth of the terminal into the terminal accommodating chamber becomes shallow by the amount of the elastic seal member that is sandwiched. As described above, when the elastic seal member and the support member are reversely assembled, the terminal cannot be inserted to the normal position of the terminal accommodating chamber, so that the reverse assembled state can be detected. Therefore, an inspection process for inspecting only the mounting order of the elastic seal member and the support member is not required, and the manufacturing cost can be reduced.

(2) The connector according to the above (1), wherein the electrical connection portion has a locking hole that is locked and stopped by a locking member at a normal position of the terminal accommodating chamber. .

  According to the connector configured as described in (2) above, when the terminal having the elastic seal member and the support member attached in the normal orientation is inserted into the terminal accommodating chamber, the terminal is interposed between the locking step portion and the engaging portion. The support member is sandwiched, and the engagement portion is inserted from the locking step portion to a position substantially corresponding to the thickness of the support member. The terminal inserted at the proper insertion depth is in the normal position in the terminal accommodating chamber, the locking hole is aligned with the locking member provided in the terminal accommodating chamber, and the locking member is locked in the locking hole. The release from the terminal accommodating chamber is regulated by the above. However, when the elastic seal member and the support member are reversely assembled, the terminal that cannot be inserted to the normal position of the terminal accommodating chamber cannot be prevented from being pulled out, so that the reversely assembled state can be more easily detected.

(3) The connector according to the above (1) or (2), wherein the locking portion is engaged with the locking step portion formed in an annular shape surrounding an opening edge at the rear of the inner peripheral wall surface. A connector having an annular locking portion.

  According to the connector having the configuration of (3) above, the locking portion of the support member has the annular locking portion, and this annular locking portion is provided on the annular locking step portion of the opening edge at the rear of the inner peripheral wall surface. Engage. That is, the annular locking portion that surrounds the insertion center of the support member and the annular locking step portion that surrounds the insertion center of the opening edge behind the inner peripheral wall face each other at the annular surfaces. As a result, the locking portion of the support member is securely locked to the entire periphery of the opening edge behind the inner peripheral wall surface, and the detection accuracy of the reverse assembled state is improved.

  According to the connector of the present invention, the reverse assembly state of the elastic seal member and the support member can be prevented without causing an increase in manufacturing cost.

  The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through a mode for carrying out the invention described below (hereinafter referred to as “embodiment”) with reference to the accompanying drawings. .

It is a disassembled perspective view of the connector which concerns on one Embodiment of this invention. It is a perspective view which shows the state by which the connector shown in FIG. 1 was assembled. (A) is a perspective view of the support member shown in FIG. 1, and (b) is an enlarged perspective view of a locking step provided at an opening edge at the rear of the inner peripheral wall surface of the connector housing. (A) is principal part sectional drawing of a support member and an elastic seal member in a normal assembly state, (b) is principal part sectional drawing of a support member and an elastic seal member in a reverse assembly state. (A) is a longitudinal cross-sectional view of the conventional connector, (b) is a perspective view of the terminal shown to (a). (A) Main part sectional drawing of the state in which the support member and elastic seal member of the conventional connector were reversely assembled, (b) is the state in which the support member and the elastic seal member were reversely assembled in the connector of (a) FIG.

Embodiments according to the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, a connector 11 according to an embodiment of the present invention is connected to a connector housing 15 having a terminal accommodating chamber 13 (see FIG. 4A), a packing 17, and an electric wire 19. A terminal 21 inserted into the terminal accommodating chamber 13, a terminal rubber (elastic seal member) 23 and a terminal spacer (support member) 25, a rubber plug 27, a rear holder 29, and a shield shell 31. , And a shield ring 33. This connector 11 is attached to a housing of a device (not shown).

  The connector housing 15 includes a body portion 35 that is formed in a substantially rectangular tube shape that defines the terminal accommodating chamber 13, and a flange that extends outward from an axial intermediate portion of the body portion 35 and is fixed to the housing of the device. Part 37. An annular packing 17 is attached to the flange portion 37 for watertight sealing with the housing.

  The body portion 35 of the connector housing 15 has a rear end portion that is one end portion in the axial direction opened to communicate with the terminal accommodating chamber 13, and a front end portion that is the other end portion is closed. An insertion hole 39 (see FIG. 4A) extending along the axial direction of the body portion 35 and penetrating through the front end portion is formed at the front end portion. The electrical connection portion 41 of the terminal 21 inserted into the terminal accommodating chamber 13 is inserted into the insertion hole 39.

  The connector housing 15 is provided with a cantilever-shaped lance 43 (see FIG. 4A) that is a locking member protruding into the insertion hole 39. The base end side of the lance 43 is connected to the connector housing 15, and the distal end side is a free end side to engage with the terminal 21.

  The terminal 21 has the electric connection part 41 connected to a mating terminal (not shown) on the distal end side, and the electric wire connection part 45 to which the electric wire 19 is connected on the proximal end side. The electric wire connecting portion 45 of the terminal 21 includes a substrate portion on which the conductor portion of the electric wire 19 is placed, and a pair of caulking pieces 47 provided to be connected to both side edges of the substrate portion. The pair of crimping pieces 47 are bent so as to wrap the conductor part placed on the board part, the conductor part is gripped by the pair of crimping pieces 47 and the board part, and the terminal 21 and the electric wire 19 are electrically connected. Connected.

  The electrical connection portion 41 of the terminal 21 is formed in a rectangular plate shape, and the base end portion, which is one end portion in the longitudinal direction, is connected to the substrate portion of the wire connection portion 45. The tip, which is the other end, is rounded into a semicircle, and a through-hole 49 that penetrates in the thickness direction is formed at the tip. For example, when the terminal 21 and the counterpart terminal are fastened using a bolt, the through hole 49 is inserted through the bolt or a protrusion provided on the counterpart terminal is fitted.

  A locking hole 51 is formed in an intermediate portion of the electrical connection portion 41. The lance 43 formed in the connector housing 15 is locked in the locking hole 51. The terminal 21 is prevented from being detached from the terminal accommodating chamber 13 by engaging the lance 43 with the locking hole 51 of the electrical connection portion 41. The terminal 21 is formed with a mounting hole that communicates with the insertion hole 39 of the connector housing 15 in the orthogonal direction, and the tip of the retaining member that is inserted into the mounting hole is fitted into the locking hole 51 to prevent the terminal 21 from coming off. Also good.

  The terminal rubber 23 and the terminal spacer 25 are attached to the proximal end portion of the electrical connection portion 41. The electrical connection portion 41 is flatly formed with a substantially constant thickness and a substantially constant width from the distal end portion thereof to the attachment portion 53 where the terminal rubber 23 and the terminal spacer 25 are attached. An engagement portion 55 is provided at the proximal end portion of the electrical connection portion 41 adjacent to the proximal end side of the mounting portion 53.

  The engaging portion 55 of the present embodiment is configured as a pair of terminal protrusions 55a and 55b provided to protrude from the both side edges of the base end portion of the electrical connecting portion 41 by a predetermined length in the width direction of the electrical connecting portion 41. The terminal spacer 25 is engaged from behind along the insertion direction of the terminal 21. These terminal protrusions 55a and 55b can be formed at the same time as punching out the material of the terminal 21 from, for example, a metal plate, that is, formed by pressing in one direction in the thickness direction.

  The terminal rubber 23 which is an elastic seal member is formed of, for example, a rubber material and can be elastically deformed. The terminal rubber 23 has a flat and substantially rectangular ring shape, and a hole at the center thereof has a cross-sectional shape of the electric connecting portion 41 so as to be in close contact with the outer peripheral surface 57 of the electric connecting portion 41 (see FIG. 4A). It is the same or slightly smaller. The terminal rubber 23 attached to the terminal 21 and inserted into the terminal accommodating chamber 13 is in close contact with the outer peripheral surface 57 of the electrical connecting portion 41 and the inner peripheral wall surface 59 of the terminal accommodating chamber 13. Seal the space tightly.

  The terminal spacer 25 which is a support member is formed of a synthetic resin material or the like having higher rigidity than the terminal rubber 23, and the amount of elastic deformation is negligible compared to the terminal rubber 23. The terminal spacer 25 has a flat rectangular ring shape as shown in FIG. 3A, and its central hole is slightly larger than the cross-sectional shape of the electric connection portion 41 so that the electric connection portion 41 can be smoothly inserted. Largely molded.

  A rubber plug 27 that seals between the connector housing 15 and the electric wire 19 in a watertight manner is externally attached to the electric wire 19. A rear holder 29 is externally attached to the electric wire 19 to which the rubber plug 27 is attached. The rear holder 29 is held by the connector housing 15 to prevent the rubber plug 27 from coming off, and prevents the electric wire 19 from being bent to prevent the watertight sealing performance of the rubber plug 27 from being lowered. The electric wire 19 led out from the rear holder 29 is inserted into the shield shell 31. The shield shell 31 has a shell flange portion 61 and a shell tube portion 63. The shell cylinder portion 63 is inserted with the electric wire 19 behind the rear holder. A braided wire (not shown) is sandwiched between the outer periphery of the shell cylindrical portion 63 of the shield shell 31 by the shield ring 33. In the shield shell 31 where the electric wire 19 is led out from the shell tube portion 63 and connected to the braided wire, the shell flange portion 61 is held by the flange portion 37 of the connector housing 15 by a lock portion (not shown), as shown in FIG. The connector housing 15 is fixed integrally.

Incidentally, as shown in FIG. 3B, the connector housing 15 is formed with a locking step portion 65 behind the inner peripheral wall surface 59. The locking step portion 65 has a step-like orthogonal plane 67 that is connected orthogonally to the inner peripheral wall surface 59.
The terminal spacer 25 is formed with a spacer locking portion (locking portion) 69. The spacer locking portion 69 is a locking portion that engages with the locking step portion 65 from the back in the insertion direction of the terminal 21 to restrict the forward movement of the terminal spacer 25 with respect to the inner peripheral wall surface 59. .

  In the present embodiment, the spacer locking portion 69 is a spacer locking front surface (annular) that is engaged with a stepped orthogonal plane 67 of a locking step portion 65 formed in an annular shape surrounding the opening edge at the rear of the inner peripheral wall surface 59. (Locking portion) 71.

Next, the operation of the connector 11 having the above configuration will be described.
In the connector 11 of this embodiment, as shown in FIG. 4A, the terminal rubber 23 and the terminal spacer 25 are inserted first into the electrical connection portion 41 of the terminal 21 first, followed by the terminal spacer 25. And attached to the electrical connecting portion 41. The previously inserted terminal spacer 25 abuts on the terminal protrusions 55a and 55b of the electrical connecting portion 41 and is positioned at the mounting portion 53 adjacent to the tip side of the terminal protrusions 55a and 55b. The terminal rubber 23 abuts on the terminal spacer 25 positioned at the mounting portion 53 and is positioned at the mounting portion 53 adjacent to the distal end side of the terminal spacer 25.

  The terminal 21 to which the terminal rubber 23 and the terminal spacer 25 are attached is inserted into the terminal accommodating chamber 13 of the connector housing 15 through the rear end portion of the trunk portion 35 with the front end of the electrical connection portion 41 facing forward. At the rear end portion of the body portion 35, the end portion of the electric wire 19 connected to the electric wire connection portion 45 of the terminal 21 is located, and a rubber plug 27 is attached to the end portion of the electric wire 19. The rubber plug 27 is in close contact with the outer peripheral surface of the electric wire 19 at the end of the electric wire 19 and the inner wall surface 73 (see FIG. 4A) at the rear end of the terminal accommodating chamber, and liquid such as water and oil passes through the rear end of the trunk portion 35. Intrusion into the terminal accommodating chamber 13 is prevented.

  The distal end portion of the electrical connection portion 41 of the terminal 21 is inserted into an insertion hole 39 formed in the front end portion of the body portion 35 and protrudes outward from the front end portion as shown in FIG.

  As shown in FIG. 4A, the proximal end portion of the electrical connecting portion 41 is located in the terminal accommodating chamber 13 and in the vicinity of the opening portion of the insertion hole 39. The terminal rubber 23 attached to the proximal end portion of the electrical connection portion 41 is in close contact with the outer peripheral surface 57 of the electrical connection portion 41 and the inner peripheral wall surface 59 of the terminal accommodating chamber 13, and liquid such as water or oil passes through the insertion hole 39. Intrusion into the terminal accommodating chamber 13 is prevented.

  When the terminal 21 is inserted into the terminal accommodating chamber 13, friction is generated between the terminal rubber 23 attached to the electrical connection portion 41 and the inner peripheral wall surface 59 of the terminal accommodating chamber 13. In addition, a force indicated by an arrow X in FIG. 4A may act on the front end portion of the connector housing 15 exposed outside the housing of the device due to the pressure of the liquid or the like. Even in this case, the connector housing 15 moves backward with respect to the terminal 21 inserted into the terminal accommodating chamber 13, and friction is generated between the terminal rubber 23 and the inner peripheral wall surface 59 of the terminal accommodating chamber 13.

  The friction acts to retract the terminal rubber 23 with respect to the electrical connection portion 41. However, a terminal spacer 25 is provided adjacent to the back of the terminal rubber 23, and this terminal spacer 25 is engaged with the terminal protrusions 55 a and 55 b of the electrical connection portion 41 from the back and retracted relative to the electrical connection portion 41. Is blocked. Therefore, the terminal rubber 23 is supported from behind by the terminal spacer 25 and is prevented from moving backward. Since the terminal rubber 23 is prevented from retreating and stays at the mounting portion 53 of the electrical connection portion 41, a sealing property between the outer peripheral surface 57 of the electrical connection portion 41 and the inner peripheral wall surface 59 of the terminal accommodating chamber 13 is ensured. The

  In the connector 11 of the present embodiment, when the terminal rubber 23 and the terminal spacer 25 are attached to the electrical connecting portion 41 of the terminal 21 in a normal orientation, the terminal spacer 25 attached from the front end side of the electrical connecting portion 41 first. Engages with the terminal protrusions 55a and 55b (see FIG. 1), and the terminal spacer 25 is restricted from moving backward further. The terminal rubber 23 to be attached to the electrical connecting portion 41 later is provided adjacent to the front side of the terminal spacer 25.

  When the terminal 21 provided with the terminal rubber 23 and the terminal spacer 25 in this order from the distal end side is inserted into the terminal accommodating chamber 13 of the connector housing 15, first, the terminal rubber 23 is inserted into the terminal accommodating chamber 13 and the inner peripheral wall surface 59. Insertion resistance is generated by contact friction with respect to the terminal 21 and tends to be moved relative to the terminal 21 backward. At this time, the terminal rubber 23 is supported by the terminal spacer 25 engaged with the terminal protrusions 55a and 55b, and is pushed into the terminal accommodating chamber 13 without retreating. When the terminal rubber 23 is inserted to a predetermined depth in the terminal accommodating chamber 13, the spacer locking portion 69 of the terminal spacer 25 is engaged with the locking step portion 65 provided behind the inner peripheral wall surface 59, and the terminal spacer No. 25 is restricted from moving forward, and the installation of the terminal rubber 23 at a predetermined depth is completed.

On the other hand, as shown in FIG. 4B, when the terminal rubber 23 and the terminal spacer 25 are reversely assembled to the electrical connecting portion 41 of the terminal 21, the terminal rubber 23 is first attached from the front end side of the electrical connecting portion 41. After that, the terminal spacer 25 is attached. When the terminal 21 reversely assembled in the order of the terminal spacer 25 and the terminal rubber 23 from the front end side is inserted into the terminal accommodating chamber 13 of the connector housing 15, the terminal spacer 25 will be inserted into the terminal accommodating chamber 13 first. However, the spacer locking portion 69 of the terminal spacer 25 is engaged with the locking step portion 65 provided at the rear of the inner peripheral wall surface 59, and the terminal spacer 25 is restricted from moving forward further. At this time, the terminal rubber 23 is not inserted up to the inner peripheral wall surface 59 of the terminal accommodating chamber 13, and is disposed between the terminal spacer 25 and the terminal protrusions 55 a and 55 b of the terminal 21. For this reason, the insertion depth of the terminal 21 into the terminal accommodating chamber 13 is shallow by the amount of the terminal rubber 23 sandwiched. As described above, when the terminal rubber 23 and the terminal spacer 25 are reversely assembled, the terminal 21 cannot be inserted up to the normal position of the terminal accommodating chamber 13, so that the reverse assembled state can be detected.
Accordingly, an inspection process for inspecting only the attachment order of the terminal rubber 23 and the terminal spacer 25 is not required, and the manufacturing cost of the connector 11 can be reduced.

  Furthermore, according to the connector 11 of the present embodiment, when the terminal 21 to which the terminal rubber 23 and the terminal spacer 25 are attached in the normal orientation is inserted into the terminal accommodating chamber 13, the locking step portion 65 and the terminal protrusion 55a. , 55b, the terminal spacer 25 is sandwiched, and the terminal protrusions 55a, 55b are inserted from the locking step portion 65 to a position substantially equal to the thickness of the terminal spacer. The terminal 21 inserted at this regular insertion depth is in a regular position in the terminal accommodating chamber 13, and as shown in FIG. 4A, the lance 43 provided in the insertion hole 39 of the terminal accommodating chamber 13 has a locking hole. 51 is matched, and the lance 43 is locked in the locking hole 51, whereby the detachment from the terminal accommodating chamber 13 is restricted. By the way, when the terminal rubber 23 and the terminal spacer 25 are reversely assembled, as shown in FIG. 4B, the terminal 21 that cannot be inserted to the normal position of the terminal accommodating chamber 13 cannot be prevented from being removed. The assembly state can be detected more easily.

  Further, according to the connector 11 of the present embodiment, the spacer locking portion 69 of the terminal spacer 25 has the spacer locking front surface 71, and this spacer locking front surface 71 is an opening edge at the rear of the inner peripheral wall surface 59. Engages with an annular locking step 65. That is, the spacer locking front surface 71 that surrounds the insertion center of the terminal spacer 25 and the annular locking step portion 65 that surrounds the insertion center of the opening edge behind the inner peripheral wall surface 59 abut each other on the annular surfaces. As a result, the spacer locking portion 69 of the terminal spacer 25 is reliably locked to the entire circumference of the opening edge behind the inner peripheral wall surface 59, and the detection accuracy of the reverse assembled state is further improved.

Therefore, according to the connector 11 according to the present embodiment, the reverse assembly state of the terminal rubber 23 and the terminal spacer 25 can be prevented without causing an increase in manufacturing cost.
In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimensions, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

DESCRIPTION OF SYMBOLS 11 ... Connector 13 ... Terminal accommodation chamber 15 ... Connector housing 21 ... Terminal 23 ... Terminal rubber (elastic sealing member)
25 ... Terminal spacer (supporting member)
41 ... Electric connection part 43 ... Lance (locking member)
51 ... Locking hole 55 ... Engaging portion 55a, 55b ... Terminal protrusion 57 ... Outer peripheral surface 59 ... Inner peripheral wall surface 65 ... Locking step portion 69 ... Spacer locking portion (locking portion)
71 ... Spacer locking front (annular locking part)

Claims (3)

A terminal having a rectangular plate-like electrical connection;
A connector housing having a terminal accommodating chamber into which the terminal is inserted;
An annular elastic seal member that is circumferentially attached to the electrical connection portion and is in close contact with the outer peripheral surface of the electrical connection portion and the inner peripheral wall surface of the terminal accommodating chamber
An annular support member through which the electrical connection portion is inserted,
The support member has higher rigidity than the elastic seal member, and engages with a locking step provided at the rear of the inner peripheral wall surface from behind along the insertion direction of the terminal, so that the inner periphery Having a locking part that is restricted from moving forward relative to the wall surface;
The electrical connection portion has an engagement portion that engages with the support member from behind along the insertion direction of the terminal,
The connector, wherein the elastic seal member is provided adjacent to a front side of the support member locked to the engaging portion. The connector according to claim 1,
The connector according to claim 1, wherein the electrical connection portion has a locking hole that is locked and retained by a locking member at a normal position of the terminal accommodating chamber. The connector according to claim 1 or 2, wherein
The connector is characterized in that the locking portion has an annular locking portion that is engaged with the locking step portion formed in an annular shape surrounding an opening edge at the rear of the inner peripheral wall surface.

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