JP2010211936A - Waterproof connector with cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collectively removable waterproof connector with a cover, having a plurality of locking spaces for common use, in order to improve release performance and reduce the machining cost of a die. <P>SOLUTION: This waterproof connector includes a connector housing 11, a holder 15 for holding a seal member 13 housed in the connector housing 11, and a cover 17 for leading out a linear body introduced into the connector housing 11 from the connector housing 11 while guiding it. The holder 15 includes a locking part 43 locked to a first engagement part 35 formed in the connector housing 11. The first locking part 43 is also used as a second engagement part to which a second locking part 49 formed in the cover 17 is locked. As the first engagement part 35, an engagement protrusion formed in the connector housing 11 can be used, as the first locking part 43, a locking frame surrounding the engagement protrusion to be locked can be used, as the second locking part 49, a flexible pawl part having a pawl at the tip of its flexible neck can be used, and as the second engagement part, a tilted frame part formed by tilting the tip frame end face of the locking frame can be used. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a waterproof connector with a cover including a connector housing, a holder attached to the connector housing, and a cover attached to the connector housing with the holder interposed therebetween.

A waterproof connector with a cover is known that covers a linear body (electric wire) led out from a connector housing while being waterproof-sealed and can be bent and wired in a desired direction (see, for example, Patent Document 1).
A conventional waterproof connector with a cover will be described with reference to FIGS. 7 is an exploded perspective view of a conventional waterproof connector with a cover, FIG. 8 is a side view in the middle of attaching a wire cover, FIG. 9 is an enlarged view of part A in FIG. 8, FIG. 10 is a side view in an assembled state, FIG. It is a BB arrow line view. The waterproof connector with cover 500 holds a connector housing 501 that accommodates a terminal fixed to an electric wire (not shown), a mat seal 505 having a plurality of electric wire seal holes 503, and the mat seal 505 between the connector housing 501. A mat seal cover 507 that is a holder for preventing breakage, and a wire cover 511 that covers and regulates the electric wire drawn out from the electric wire outlet hole 509 of the mat seal cover 507.

  An engagement protrusion 513 that is a first engagement portion is formed on the side surface of the connector housing 501, and a flexible engagement claw that is a first engagement portion formed on the side surface of the mat seal cover 507 is formed on the engagement protrusion 513. 515 is locked. A locking plate 517 that is a second engaging portion is formed on the side surface of the mat seal cover 507, and a locking frame 519 that is a second locking portion formed on the wire cover 511 is locked to the locking plate 517. Is done. As shown in FIG. 8, the connector housing 501 has a hook receiving part 521, and a hook part 523 formed at the end of the wire cover 511 is hooked on the hook receiving part 521 as shown in FIG. The

  To assemble the waterproof connector with cover 500, the mat seal 505 is assembled to the connector housing 501, the flexible locking claw 515 is locked to the engagement protrusion 513 from the direction of arrow a in FIG. The seal cover 507 is fixed. Next, the hook portion 523 of the wire cover 511 is hooked on the hook receiving portion 521 of the connector housing 501, and the wire cover 511 is rotated in the direction of arrow b in FIG. As shown in FIG. 10, when the wire cover 511 is assembled to the connector housing 501, the locking frame 519 of the wire cover 511 is locked to the locking plate 517 as shown in FIG. The mat seal cover 507 is fixed. Thus, the mat seal 505 is held by the mat seal cover 507, and the assembly of covering the unillustrated electric wire led out from the electric wire outlet hole 509 with the wire cover 511 is completed.

JP 2003-272768 A

  However, the conventional waterproof connector with cover 500 includes a first engagement portion (engagement protrusion 513) for fixing the mat seal cover 507 to the connector housing 501, a first engagement portion (flexible engagement claw 515), and a mat. Since the second locking part (locking frame 519) and the second engaging part (locking plate 517) for fixing the wire cover 511 to the seal cover 507 are individually formed, there are many locking points and scattered. The release work must be performed at each locking point to be performed, and the work man-hours at the time of removal increased. In addition, since there are a large number of locking portions, there is a problem that the die processing cost increases.

  The present invention has been made in view of the above circumstances, and provides a waterproof connector with a cover that can be removed in a lump and that can share a plurality of locking spaces, thereby improving releasability and reducing mold processing costs. It aims to plan.

The above object of the present invention is achieved by the following configuration.
(1) A cover provided with a connector housing, a holder for holding a seal member accommodated in the connector housing, and a cover for guiding a linear body introduced into the connector housing and guiding it from the connector housing Waterproof connector with
The holder includes a first locking portion that is locked to a first engagement portion formed in the connector housing,
The waterproof connector with cover, wherein the first locking portion is also used as a second engagement portion for locking a second locking portion formed on the cover.

  According to this waterproof connector with cover, the holder is fixed to the connector housing by the first locking portion of the holder being locked (locked) to the first engaging portion of the connector housing. The cover is fixed to the holder by the second locking portion of the cover being locked to the first locking portion. Therefore, the holder and the cover are fixed to the first engaging portion at once.

(2) The cover-attached waterproof connector of (1),
The first engagement portion is an engagement protrusion formed on the connector housing;
The first locking portion is a locking frame that surrounds and locks the engaging protrusion;
The second locking portion is a flexible claw portion having a claw at the tip of the flexible neck,
The waterproof connector with cover, wherein the second engaging portion is an inclined frame portion in which the end frame end surface of the locking frame is inclined.

  According to this waterproof connector with cover, the locking frame of the holder is locked so as to surround the engaging protrusion protruding from the connector housing, and the holder is prevented from being detached in the direction away from the connector housing. When the flexible claw portion of the cover is locked to the inclined frame portion of the locking frame locked to the engaging protrusion, the detachment of the cover in the direction away from the holder is restricted.

(3) The waterproof connector with a cover according to (2),
The waterproof connector with cover, wherein the flexible claw portion is formed as a recess in which the flexible neck inserts a release jig.

  According to this waterproof connector with a cover, the release jig is inserted into the concave portion of the flexible claw portion that is locked from the outermost side, and the release jig is used to release the locking force (the engagement portions in the locking direction, The first locking portion, the second locking portion, and the second engaging portion can be deformed in the locking releasing direction by applying a force that elastically deforms the portion to release the locking.

(4) The waterproof connector with cover of (3),
The waterproof connector with cover, wherein the locking frame is disengaged from the engaging protrusion while the flexible claw portion is locked by a locking releasing force applied by a releasing jig inserted into the recess.

  According to this waterproof connector with cover, in the multi-stage multi-stage locking means in which the locking frame is locked to the engaging protrusion and the flexible claw section is locked to the inclined frame portion of the locking frame, When an unlocking force is applied to the concave portion of the flexible claw portion to be stopped by a release jig, from the combined conditions of the amount of deformation and the locking allowance, of the locking portions, the locking frame for the engaging projections The lock is released. Accordingly, the holder and the cover are removed from the connector housing while being integrated.

(5) A waterproof connector with a cover according to any one of (1) to (4),
At least one set of multistage locking means composed of the first engaging portion, the first locking portion, the second locking portion, and the second engaging portion;
Rotation latch means for latching a hook portion formed on the cover to the hook receiving portion formed on the connector housing;
A waterproof connector with a cover, comprising:

  According to this waterproof connector with a cover, by fixing the holder to the connector housing and combining the hook portion of the cover with the hook portion of the connector housing while rotating it, the flexible claw portion of the cover is already attached to the connector housing. Lock to the locking frame of the holder fixed to the side. As a result, the cover is fixed to the connector housing with the holder sandwiched between at least two positions of the multistage locking means and the rotation hooking means.

  According to the waterproof connector with cover according to the present invention, the holder is provided with the first locking portion that is locked to the first engagement portion of the connector housing, and the second locking portion of the cover is locked to the first locking portion. Since the second engagement portion is also used as the second engagement portion, the second engagement portion is engaged with the first engagement portion and is engaged with the first engagement portion. If the stopper is unlocked, the holder and the cover can be removed from the connector housing at a time. In addition, by sharing a plurality of conventionally dispersed locking spaces, it is possible to reduce the space for forming the locking portion, to reduce the size of the entire connector, and to simplify the mold. As a result, the releasability can be improved and the mold processing cost can be reduced.

It is a disassembled perspective view of the waterproof connector with a cover concerning the present invention. It is an expanded sectional view of an engaging protrusion and a locking frame. It is an expanded sectional view of a multistage locking means. It is an expanded sectional view in the middle of the cancellation | release of a multistage latching means. It is a side view in the middle of the wire cover attachment in the waterproof connector with a cover of FIG. It is the C section enlarged view of FIG. It is a disassembled perspective view of the conventional waterproof connector with a cover. It is a side view in the middle of the wire cover attachment in the waterproof connector with a cover of FIG. It is the A section enlarged view of FIG. It is a side view of an assembly state. It is a BB arrow line view of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a waterproof connector with a cover according to the present invention.
The waterproof connector with cover 100 according to the present embodiment is pulled out from the connector housing 11, a holder (mat seal cover) 15 that holds a seal member (mat seal) 13 accommodated in the connector housing 11, and the mat seal cover 15. A cover (wire cover) 17 that guides and guides a linear body (electric wire) (not shown) is bent and guided.

  The connector housing 11 is a front portion 19 on the left side in the drawing which is the coupling side with the mating connector. The front portion 19 of the connector housing 11 is formed with a plurality of terminal accommodating chambers for accommodating terminals (not shown) arranged vertically and horizontally, and the terminal accommodating chamber is an opening hole through which the terminal of the mating connector enters the front end surface of the connector housing 11. It becomes 77 (refer FIG. 5) and opens. In the present embodiment, the waterproof connector with cover 100 is a female connector that accommodates female terminals in the connector housing 11. Therefore, the electrical contact portion of the male terminal housed in the mating male connector is inserted into the opening 77 of the connector housing front portion 19.

  As for the terminals accommodated in the respective terminal accommodating chambers, the electric wires connected to the rear ends are led out from the rear portion 21 of the connector housing 11. The rear portion 21 is formed with a peripheral wall 23 surrounding these electric wires. The mat seal 13 is made of silicone resin gel, elastic rubber, or the like, and has a plurality of wire seal holes 25 vertically and horizontally for waterproof sealing by inserting each wire led out from the terminal accommodating chamber in a watertight manner. ing. A waterproof rib 27 is provided in a multi-stage shape on the outer periphery of the mat seal 13 formed in a rectangular shape, and the mat seal 13 inserted into the peripheral wall 23 is sealed with the waterproof rib 27 between the inner surface of the peripheral wall 23. Is done.

  A mat seal cover 15 is further inserted from the rear into the peripheral wall 23 into which the mat seal 13 has been inserted. That is, the mat seal 13 is held between the connector housing 11 and the mat seal cover 15. In the mat seal cover 15, wire insertion holes 29 are formed vertically and horizontally in accordance with the wire seal holes 25 of the mat seal 13. Derived outside of.

  The wire cover 17 is assembled to the connector housing 11 so as to surround the peripheral wall 23 and cover the rear portion 21. That is, the assembly surface of the wire cover 17 becomes a fitting opening (not shown) for fitting the peripheral wall 23 inside. The fitting opening is continuously formed in the electric wire outlet hole 31 formed by opening one side wall of the wire cover 17. When the wire cover 17 is assembled to the connector housing 11, the plurality of electric wires drawn out from the mat seal cover 15 are bent in a direction (downward in FIG. 1) perpendicular to the drawing direction, and the electric wire outlet hole 31 of the wire cover 17. Are bundled into a bundle and derived.

FIG. 2 is an enlarged cross-sectional view of the engaging protrusion and the locking frame.
A pair of engaging protrusions 35 as first engaging portions are provided on both side walls 33 parallel to the peripheral wall 23, and the engaging protrusions 35 face the mounting direction of the mat seal cover 15 (arrow c direction in FIG. 1). It has an overturned inclined surface 37 that has fallen and a locking inclined surface 39 on the opposite side. The connector housing 11 is integrally formed of a synthetic resin material, and the engagement protrusion 35 is firmly formed to hold a mat seal cover 15 and a wire cover 17 described later.

  A pair of locking frames 43, which are first locking portions that are locked to the engaging protrusions 35 of the connector housing 11, are formed on both side walls 41 of the mat seal cover 15, and the locking frames 43 are between the side walls 41. A gap 45 for inserting the peripheral wall 23 and the engaging protrusion 35 is provided. That is, the locking frame 43 climbs over the inclined surface 37 while inserting the peripheral wall 23 into the gap 45, surrounds from the outside, and locks to the engagement protrusion 35.

FIG. 3 is an enlarged sectional view of the multistage locking means.
A pair of flexible claw portions 49 as second locking portions are formed on both side portions 47 (see FIG. 1) of the wire cover 17, and the flexible claw portion 49 has a claw 53 at the tip of the flexible neck 51. When the wire cover 17 is pressed in the direction in which the wire cover 17 approaches the connector housing 11, the flexible claw portion 49 slidably contacts the inclined surface 37 at the tip inclined surface 55 and climbs over the engaging protrusion 35 and the locking frame 43. The locking frame 43 is locked to the tip (the lower end in FIG. 3). The flexible claw portion 49 is engaged with the inclined frame portion 59 in which the end frame end surface 57 of the engagement frame 43 is inclined. That is, the locking frame (first locking portion) 43 serves as an inclined frame portion (second engaging portion) 59 to which the flexible claw portion (second locking portion) 49 formed on the wire cover 17 is locked. Is also used.

  The engaging projection 35, the locking frame 43, the flexible claw portion 49, and the inclined frame portion 59 constitute a multistage locking means 61. In the present embodiment, a total of four multi-stage locking means 61 are provided on each side of the waterproof connector 100 with cover, one pair at a time. In the present embodiment, four multistage locking means 61 are provided, but the number of multistage locking means 61 is not limited to this.

FIG. 4 is an enlarged sectional view in the middle of releasing the multistage locking means.
The flexible claw portion 49 is formed as a recess 65 in which the flexible neck 51 inserts the release jig 63. In the multistage locking means 61, a release jig 63 is inserted into the concave portion 65 of the flexible claw portion 49 that is locked from the outermost side. The locking frame 43, the flexible claw portion 49, and the inclined frame portion 59 can be deformed in the locking release direction by applying a force that elastically deforms the locking portion to release the locking.

FIG. 5 is a side view of the waterproof connector with cover shown in FIG.
The cover-attached waterproof connector 100 includes the above-described four multistage locking means 61 and one rotation latching means 67. The rotation latching means 67 includes a hook receiving portion 71 formed on one side wall 69 (see FIG. 1) sandwiched between both side walls 33 of the peripheral wall 23 and one side portion sandwiched between both side portions 47 of the wire cover 17. 73 and a hook portion 75 formed in 73. In the figure, reference numeral 77 denotes an opening hole that opens at the front end face of the connector housing 11 and allows the terminal of the mating connector to enter.

FIG. 6 is an enlarged view of a portion C in FIG.
The hook receiving portion 71 protrudes from the side wall 69 and forms an insertion space 81 for the hook portion 75 between the main body 79 of the connector housing 11. The hook portion 75 is inserted into the insertion space 81 and hooked upward from the lower side (lower side in FIG. 6) of the hook receiving portion 71. When the hook portion 75 is hooked on the hook receiving portion 71 and the other end of the wire cover 17 is rotated in the direction of the arrow d in FIG. The hook portion 75 is hooked because it cannot be separated from the portion 71. Further, when the multi-stage locking means 61 is released and the other end of the wire cover 17 is rotated in the direction opposite to the arrow d, the rotation latching means 67 disengages the hook part 75 from the hook receiving part 71. It becomes possible. That is, the wire cover 17 is assembled so as to be separable from the connector housing 11.

Next, the operation of the waterproof connector with cover 100 having the above configuration will be described together with an assembling procedure.
To assemble the waterproof connector 100 with a cover, a terminal is attached to the connector housing 11. The mat seal 13 in which the electric wire connected to the terminal is passed through the electric wire seal hole 25 is inserted inside the peripheral wall 23. Next, the mat seal cover 15 is inserted inside the peripheral wall 23 to which the mat seal 13 is attached.

  When the mat seal cover 15 is inserted in the direction of the arrow c in FIG. 1, the inclined frame portion 59 climbs over the inclined surface 37 of the engaging protrusion 35 and surrounds the engaging protrusion 35 as shown in FIG. Locked. Thereby, the separation of the mat seal cover 15 in the direction away from the connector housing 11 is restricted. When all the locking frames 43 are locked to the engaging protrusions 35, the mat seal cover 15 is mounted on the connector housing 11 with the mat seal 13 being sandwiched therebetween.

  Next, as shown in FIG. 6, the hook portion 75 of the wire cover 17 is hooked on the flange 71 of the connector housing 11, and the wire cover 17 is combined with the connector housing 11 while rotating in the direction of the arrow d in FIG. When the flexible claw portion 49 of the wire cover 17 abuts on the engagement protrusion 35 and is further pressed, it slides over the inclined frame portion 59 already locked to the connector housing 11 side, and the elastic restoring force is obtained. To be engaged with the end frame end surface 57 of the inclined frame portion 59. When the flexible claw portion 49 of the wire cover 17 is further locked to the inclined frame portion 59 of the locking frame 43 locked to the engaging protrusion 35, the wire cover 17 is detached in the direction away from the mat seal cover 15. Is regulated.

  As a result, the assembly of the wire cover 17 to the connector housing 11 is completed with the mat seal 13 and the mat seal cover 15 being sandwiched by the four multistage locking means 61 and the one rotation latching means 67.

  On the other hand, in order to detach the wire cover 17 from the connector housing 11, as shown in FIG. 4, the release jig 63 inserted into the concave portion 65 of the flexible claw portion 49 is used to remove the wire cover 17. The locking release force in the direction of the arrow M with the portion 83 as a fulcrum is applied. When an unlocking force is applied to the multistage locking means 61, the locking frame 43 is disengaged from the engagement protrusion 35 while the flexible claw portion 49 is locked.

  Thus, the multistage locking means 61 in which the locking frame 43 is locked to the engaging protrusion 35 and the flexible claw portion 49 is locked to the inclined frame portion 59 of the locking frame 43 is locked on the outermost side. By applying an unlocking force to the concave portion 65 of the flexible claw portion 49 by the release jig 63, the engagement of the engagement protrusion 35 with respect to the engagement protrusion 35 is determined from the combined conditions of the deformation amount and the engagement allowance. Only the locking of the stop frame 43 is released. Accordingly, the mat seal cover 15 and the wire cover 17 can be detached from the connector housing 11 while being integrated.

  Thus, in the waterproof connector 100 with a cover, the mat seal cover 15 is fixed to the connector housing 11 by engaging the engaging frame 35 of the mat seal cover 15 with the engaging projection 35 of the connector housing 11. The wire cover 17 is fixed to the mat seal cover 15 by the flexible claw portion 49 of the wire cover 17 being locked to the locking frame 43 of the fixed mat seal cover 15. That is, the mat seal cover 15 and the wire cover 17 are locked to the engaging protrusions 35 at the same position. Thereby, the mat seal cover 15 and the wire cover 17 can be collectively fixed and released.

  Therefore, according to the waterproof connector with cover 100 configured as described above, the mat seal cover 15 is provided with the locking frame 43 that is locked to the engagement protrusion 35 of the connector housing 11, and the locking frame 43 is a flexible claw of the wire cover 17. Since the portion 49 is also used as an inclined frame portion 59 to be locked, the flexible claw portion 49 is overlapped and locked to the locking frame 43 locked to the engaging projection 35 to lock the engaging projection 35. If the frame 43 is unlocked, the mat seal cover 15 and the wire cover 17 can be removed from the connector housing 11 at once.

  In addition, by sharing a plurality of conventionally dispersed locking spaces, it is possible to reduce the space for forming the locking portion, to reduce the size of the entire connector, and to simplify the mold. As a result, it is possible to reduce the mold processing cost while improving releasability.

  The waterproof connector with cover 100 according to the above embodiment is an example of a female waterproof connector with cover that accommodates female terminals, but the present invention is applicable to a male waterproof connector with cover that accommodates male terminals. However, the same effect as described above is obtained. Further, in the waterproof connector with cover 100, the multistage locking means 61 and the rotation latching means 67 are provided side by side, but the waterproof connector with cover according to the present invention is configured by providing only the multistage locking means 61. There may be.

11 Connector housing 13 Mat seal (seal member)
15 Mat seal cover (holder)
17 Wire cover (cover)
35 engagement protrusion (first engagement portion)
43 Locking frame (first locking part)
49 Flexible claw part (second locking part)
51 Flexible neck 53 Claw 57 End frame end face 59 Inclined frame portion (second engaging portion)
61 Multi-stage locking means 63 Release jig 65 Recessed part 67 Rotation latching means 71 Hook receiving part 75 Hook part 100 Waterproof connector with cover

Claims (5)

A waterproof connector with a cover, comprising: a connector housing; a holder for holding a seal member accommodated in the connector housing; and a cover for guiding a linear body introduced into the connector housing to be led out from the connector housing. Because
The holder includes a first locking portion that is locked to a first engagement portion formed in the connector housing,
The waterproof connector with cover, wherein the first locking portion is also used as a second engagement portion for locking a second locking portion formed on the cover. The waterproof connector with cover according to claim 1,
The first engagement portion is an engagement protrusion formed on the connector housing;
The first locking portion is a locking frame that surrounds and locks the engaging protrusion;
The second locking portion is a flexible claw portion having a claw at the tip of the flexible neck,
The waterproof connector with cover, wherein the second engaging portion is an inclined frame portion in which the end frame end surface of the locking frame is inclined. A waterproof connector with a cover according to claim 2,
The waterproof connector with cover, wherein the flexible claw portion is formed as a recess in which the flexible neck inserts a release jig. A waterproof connector with a cover according to claim 3,
The waterproof connector with cover, wherein the locking frame is disengaged from the engaging protrusion while the flexible claw portion is locked by a locking releasing force applied by a releasing jig inserted into the recess. It is a waterproof connector with a cover given in any 1 paragraph of Claims 1-4,
At least one set of multistage locking means composed of the first engaging portion, the first locking portion, the second locking portion, and the second engaging portion;
Rotation latch means for latching a hook portion formed on the cover to the hook receiving portion formed on the connector housing;
A waterproof connector with a cover, comprising:

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