JP2021068671A - Connector cover - Google Patents

Abstract

To provide a connector cover having excellent assembling workability which can easily accommodate an electric wire in an assembling work.SOLUTION: A first cover 11 and a second cover 12 include holding groove portions 23, 33 which form an insertion passage S through which an electric wire 41 is inserted by abutting the holding groove portions against each other, abutting portions 25, 26, 35 and 36 consisting of both edge portions of the holding groove portions 23 and 33, and a lock piece 55 which is provided on the second cover 12 and locks the first cover 11 in a state where the first cover 11 and the second cover 12 are abutted against each other. The lock piece 55 has a guide rib 75 having an inclined surface 75a which is inclined in a direction that it gradually separates from the holding groove 33 in the abutting direction of the first cover 11 and the second cover 12, the electric wire 41 being pushed to the insertion passage S by the inclined surface 75a when the first cover 11 and the second cover 12 are abutted against each other.SELECTED DRAWING: Figure 4

Description

The present invention relates to a connector cover.

There is a wire cover that is attached to the end of the connector on the lead-out side of the wire to cover and protect the wire drawn from the connector.

As this electric wire cover, there is one provided with a split body having a pair of mating surfaces to be combined with each other, and covering the passage portion formed by abutting the split bodies through an electric wire (see, for example, Patent Document 1).

JP-A-2017-117536

In the above-mentioned electric wire cover, when assembling a pair of divided bodies by butting each other, the electric wires must be accommodated and held in the passage portion of one of the divided bodies while paying attention to the arrangement so as not to protrude. Must be. Therefore, it takes time and effort to accommodate the electric wires at the time of assembling the divided body.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a connector cover having excellent assembly workability, which can easily accommodate an electric wire at the time of assembly.

In order to achieve the above-mentioned object, the connector cover according to the present invention is characterized by the following (1) to (3).
(1) A connector cover that is attached to a connector and covers an electric wire drawn from the connector.
It has a pair of covers that are abutted against each other and assembled to the connector.
The cover is
A holding groove portion that forms an insertion passage through which the electric wire is inserted by being abutted against each other,
A mating portion composed of both edges of the holding groove portion and
A lock piece provided on at least one cover and locking the other cover with the covers abutting against each other.
Have,
The lock piece has an inclined surface that is gradually inclined in a direction away from the holding groove portion in the abutting direction of the covers, and when the covers are abutted against each other, the electric wire is inserted by the inclined surface. Guide ribs that push out into the aisle are formed,
The connector cover is characterized by that.
(2) The other cover has a lock hole into which the lock piece is inserted and accommodated when the covers are abutted against each other.
The lock hole is provided with a bite prevention rib that suppresses the entry of the electric wire.
The connector cover according to (1).
(3) The lock piece having the guide rib and the bite prevention rib are arranged at positions where they are displaced in the pull-in direction of the electric wire and overlap each other along the pull-in direction of the electric wire in a state where the covers are abutted against each other. Yes,
The connector cover according to (2).

According to the connector cover having the configuration of (1) above, even if the electric wire protruding from the holding groove portion is placed on the mating portion, the electric wire is a guide rib formed on the lock piece when the covers are abutted against each other. The inclined surface pushes it toward the insertion passage consisting of the holding groove. As a result, it is possible to suppress the biting of the electric wire.
Moreover, the guide rib that pushes the electric wire into the insertion passage formed by the holding groove portion is formed in the lock piece that locks the covers in a state of being butted against each other. Therefore, it is possible to add a biting prevention function while suppressing an increase in the size of the connector cover.
According to the connector cover having the configuration of (2) above, the lock hole for accommodating the lock piece is provided with a bite prevention rib for suppressing the entry of the electric wire. As a result, it is possible to suppress the entry of the electric wire into the lock hole, and the guide rib formed on the lock piece can smoothly guide the electric wire to the insertion passage.
According to the connector cover having the configuration of (3) above, the position where the lock piece having the guide rib and the biting prevention rib are displaced in the wire drawing direction and overlap each other along the wire pulling direction in the state where the covers are butted against each other. It is located in. Therefore, it is possible to suppress the biting of the electric wire by providing the lock piece having the guide rib and the biting prevention rib while suppressing the bulkiness of the dimension in the width direction.

According to the present invention, it is possible to provide a connector cover having excellent assembly workability, which can easily accommodate an electric wire at the time of assembly.

The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings. ..

FIG. 1 is a perspective view of a connector to which the connector cover according to the present embodiment is attached. FIG. 2 is an exploded perspective view of the connector and the connector cover. FIG. 3 is a perspective view of the connector cover. FIG. 4 is a cross-sectional view taken along the line II in FIG. 3 for explaining a state during assembly. FIG. 5 is a perspective view showing the work of assembling the connector cover to the connector. FIG. 6 is a perspective view of the connector cover according to the reference example. FIG. 7 is a sectional view taken along line II-II in FIG. 6 for explaining a state during assembly.

Hereinafter, examples of embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a connector to which the connector cover according to the present embodiment is attached. FIG. 2 is an exploded perspective view of the connector and the connector cover.

As shown in FIGS. 1 and 2, the connector cover 10 according to the present embodiment is assembled to the lead-out side of the electric wire 41 in the connector 40. The electric wire 41 is protected by being passed through a corrugated tube 80 which is a protective member formed in a tubular shape. The corrugated tube 80 is made of a resin tube, and a plurality of peaks 81 and valleys 82 formed in the circumferential direction are alternately formed in the axial direction. The end of the corrugated tube 80 is locked and held by the connector cover 10. As a result, the connector 40 and the corrugated tube 80 are connected by the connector cover 10, and the electric wire 41 drawn from the connector 40 is covered and protected by the connector cover 10 between the connector 40 and the corrugated tube 80.

The connector 40 to which the connector cover 10 is assembled includes a housing 43, two female terminals 44 housed in the housing 43, an annular seal member 46 mounted on the housing 43, and a retainer 47 mounted on the housing 43. Is configured with. By fitting the connector 40 into the mating side connector (not shown), the female terminal 44 is electrically connected to the male terminal (not shown) of the mating side connector.

The housing 43 is formed with two terminal accommodating chambers 50 into which female terminals 44 are inserted from the rear. Each terminal accommodating chamber 50 is opened at the tip of the housing 43, and a tab-shaped male terminal is inserted from the opened tip.

The female terminal 44, which is inserted into and accommodated in the terminal accommodating chamber 50, is crimped and connected to the end of the electric wire 41. A rubber stopper 53 is attached to the electric wire 41 to which the female terminal 44 is connected. The rubber stopper 53 is fitted into the terminal accommodating chamber 50 to seal the terminal accommodating chamber 50. The housing 43 has an inner housing 54 projecting forward, and a sealing member 46 is mounted on the outer peripheral surface at the base of the inner housing 54.

The retainer 47 is attached to the inner housing 54 from the side thereof. The retainer 47 is formed of a synthetic resin and has a U-shaped cross section in which one side is open. The retainer 47 has a front plate portion 61 that covers the front end. An insertion port 62 is formed in the front plate portion 61. When the retainer 47 is attached to the inner housing 54 from the side thereof, the front end thereof is covered by the front plate portion 61 of the retainer 47, and the terminal accommodating chamber 50 and the insertion port 62 of the retainer 47 are communicated with each other. A tab-shaped male terminal of the mating connector is inserted into the insertion port 62, and is electrically connected to the female terminal 44 housed in the terminal accommodating chamber 50.

A lock arm 66 having a locking claw 65 at the tip thereof is formed on the upper portion of the housing 43. The lock arm 66 is supported in a cantilever shape. In the lock arm 66, when the housing 43 is fitted to the mating housing of the mating connector, the locking claw 65 locks the locking projection (not shown) formed on the mating housing. As a result, the housing 43 is locked in a state of being fitted to the mating housing. Further, the housing 43 is formed with locking pieces 67 and 68 projecting outward on both sides and a lower portion at the rear end, respectively.

FIG. 3 is a perspective view of the connector cover. FIG. 4 is a cross-sectional view taken along the line II in FIG. 3 for explaining a state during assembly.

As shown in FIGS. 3 and 4, the connector cover 10 assembled to the connector 40 has a first cover 11 and a second cover 12. The first cover 11 and the second cover 12 are rotatably connected to each other by a hinge portion 13. The first cover 11, the second cover 12, and the hinge portion 13 are integrally molded of synthetic resin. In the connector cover 10, the first cover 11 and the second cover 12 are brought into contact with each other by rotating the second cover 12 with respect to the first cover 11 from the state where the first cover 11 and the second cover 12 are open. Combined in a butted state.

The first cover 11 has locking portions 21 on both sides on one end side, which is an end portion on the side for assembling to the connector 40. The locking portion 21 locks the locking piece 67 formed in the housing 43 of the connector 40. Each of the locking portions 21 has a locking groove 22, and by inserting the locking piece 67 into these locking grooves 22, the locking portion 21 is locked by the locking piece 67. As a result, the first cover 11 is assembled to the housing 43 of the connector 40.

The first cover 11 has a holding groove portion 23 that is recessed in an arc shape in a cross-sectional view on the abutting side with the second cover 12. A plurality of locking ridges 24 are formed on the inner surface of the holding groove portion 23. These locking ridges 24 are arranged at equal intervals from each other. The locking ridges 24 are arranged at the same arrangement pitch as the pitch of the valley 82 of the corrugated tube 80. The end of the corrugated tube 80 is arranged in the holding groove 23. Then, when the corrugated tube 80 is arranged at a predetermined position of the holding groove portion 23, the locking ridge 24 enters the valley portion 82 of the corrugated tube 80, whereby the end portion of the corrugated tube 80 becomes the holding groove portion 23. Locked.

Further, on the abutting side of the first cover 11 with the second cover 12, a positioning wall 20 is formed on the side where the connector 40 is assembled to the housing 43. The positioning wall 20 is formed along a width direction orthogonal to the lead-in direction of the electric wire 41, and the corrugated tube 80 is positioned in the axial direction by abutting the end portions of the corrugated tube 80.

The first cover 11 is a mating portion 25, 26 in which both edges of the holding groove portion 23 are abutted against the second cover 12. The mating portion 26 on the side opposite to the connecting side with the second cover 12 has an inclined portion 28.

The first cover 11 is formed with a lock hole 51 on the connecting side with the second cover 12. A lock convex portion 51a is formed on the inner side surface of the lock hole 51 on one side thereof. Further, the first cover 11 is formed with a lock piece 52 on the side opposite to the connecting side with the second cover 12. A lock claw 52a is formed at the tip of the lock piece 52.

In the lock hole 51 of the first cover 11, a bite prevention rib 71 is formed on the inner surface 51b on the holding groove portion 23 side. The bite prevention rib 71 protrudes from the inner surface 51b.

The second cover 12 has a locking portion 31 on one end side, which is an end portion on the side for assembling to the connector 40. The locking portion 31 locks the locking piece 68 formed in the housing 43 of the connector 40. The locking portion 31 has a locking groove 32, and by inserting the locking piece 68 into the locking groove 32, the locking portion 31 is locked by the locking piece 68. As a result, the second cover 12 is assembled to the housing 43 of the connector 40.

The second cover 12 has a holding groove portion 33 that is recessed in an arc shape in a cross-sectional view on the abutting side with the first cover 11. A plurality of locking ridges 34 are formed on the inner surface of the holding groove portion 33. These locking ridges 34 are arranged at equal intervals from each other. The locking ridges 34 are arranged at the same arrangement pitch as the pitch of the valley portions 82 of the corrugated tube 80, similarly to the locking ridges 24 formed in the holding groove portion 23 of the first cover 11. The end of the corrugated tube 80 is arranged in the holding groove 33. Then, when the corrugated tube 80 is arranged at a predetermined position of the holding groove portion 33, the locking ridge 34 enters the valley portion 82 of the corrugated tube 80, whereby the end portion of the corrugated tube 80 enters the holding groove portion 33. Locked.

Further, on the abutting side of the second cover 12 with the first cover 11, a positioning wall 30 is formed on the side where the connector 40 is assembled to the housing 43. The positioning wall 30 is formed along a width direction orthogonal to the lead-in direction of the electric wire 41, and the corrugated tube 80 is positioned in the axial direction by abutting the end portions of the corrugated tube 80.

The second cover 12 is a mating portion 35, 36 in which both edges of the holding groove portion 33 are abutted against the first cover 11.

A pair of lock pieces 55 are formed on the second cover 12 on the connecting side with the first cover 11. Each of these lock pieces 55 has a lock claw 55a formed at the tip thereof. These lock pieces 55 are formed at positions deviated from the bite prevention rib 71 formed on the inner surface 51b of the lock hole 51 of the first cover 11 in the lead-in direction of the electric wire 41. Specifically, a pair of lock pieces 55 are formed at positions on both sides of the wire 41 in the pull-in direction with respect to the bite prevention rib 71. Further, the second cover 12 is formed with a recess 56 on the side opposite to the connecting side with the first cover 11. A lock convex portion 56a is formed in the concave portion 56.

A guide rib 75 is formed on the holding groove 33 side of each lock piece 55 of the second cover 12. The guide rib 75 is formed over the longitudinal direction of the lock piece 55. The guide rib 75 has an inclined surface 75a that gradually inclines in a direction away from the holding groove 33 in the abutting direction with the first cover 11.

The mating portion 36 on the side opposite to the connecting side with the first cover 11 has a guide rib 38. The guide rib 38 has an inclined surface 38a that gradually inclines in a direction away from the holding groove 33 in the abutting direction with the first cover 11.

Next, a case where the connector cover 10 is assembled to the connector 40 will be described.
FIG. 5 is a perspective view showing the work of assembling the connector cover to the connector.

First, the first cover 11 of the connector cover 10 is attached to the connector 40. Specifically, as shown in FIG. 5, the first cover 11 is brought close to the upper portion at the rear end of the connector 40, and is formed in the housing 43 of the connector 40 in the locking groove 22 of the locking portion 21 of the first cover 11. The locking piece 67 is inserted and engaged. In this way, the electric wire 41 drawn from the connector 40 is drawn into the holding groove portion 23 of the first cover 11 and arranged.

Next, the corrugated tube 80 is attached to the first cover 11 of the connector cover 10. Specifically, the corrugated tube 80 is brought close to the connector 40 to which the first cover 11 of the connector cover 10 is mounted, the end portion of the corrugated tube 80 is brought into contact with the positioning wall 20 for positioning, and the corrugated tube 80 is inserted into the holding groove portion 23. .. Then, the locking ridge 24 of the holding groove portion 23 enters the valley portion 82 of the corrugated tube 80, and the end portion of the corrugated tube 80 is locked to the holding groove portion 23.

After that, the second cover 12 is rotated toward the first cover 11 side (in the direction of arrow A in FIGS. 4 and 5) around the connecting portion by the hinge portion 13. Then, the second cover 12 is abutted against the first cover 11 attached to the connector 40 and to which the corrugated tube 80 is locked.

Then, the locking piece 68 formed in the housing 43 of the connector 40 is inserted into the locking groove 32 of the locking portion 31 of the second cover 12 and engaged with the locking groove 32. Then, the corrugated tube 80 enters the holding groove 33 of the second cover 12. As a result, the locking ridge 34 of the holding groove 33 enters the valley 82 of the corrugated tube 80, and the end of the corrugated tube 80 is locked to the holding grooves 23 and 33 of the first cover 11 and the second cover 12. Be retained.

At this time, the electric wire 41 protruding from the holding groove portion 23 may be placed on the mating portion 25 of the first cover 11. Even in this case, when the second cover 12 is abutted against the first cover 11, the electric wire 41 is the inclined surface of the guide rib 75 formed on the lock piece 55 of the mating portion 35 of the second cover 12. It is pushed by the 75a toward the insertion passage S including the holding grooves 23 and 33 (in the direction of arrow B in FIG. 4).

Further, the electric wire 41 protruding from the holding groove portion 23 may be placed on the mating portion 26 of the first cover 11. Even in this case, when the second cover 12 is abutted against the first cover 11, the electric wire 41 is held by the inclined surface 38a formed on the guide rib 38 of the mating portion 36 of the second cover 12. It is pushed toward the insertion passage S composed of 23 and 33.

Then, when the second cover 12 is abutted against the first cover 11, the lock piece 55 of the second cover 12 is inserted into the lock hole 51 of the first cover 11, and the lock claw 55a of the lock piece 55 is locked. The lock convex portion 51a of the hole 51 is locked. Further, the lock piece 52 of the first cover 11 enters the recess 56 of the second cover 12, and the lock claw 52a of the lock piece 52 locks the lock protrusion 56a of the recess 56. As a result, the first cover 11 and the second cover 12 are locked in a state of being abutted against each other.

By assembling the connector cover 10 to the connector 40 in this way, the insertion passage S is formed by the holding grooves 23 and 33 of the first cover 11 and the second cover 12 which are butted against each other, and the electric wire drawn out from the connector 40. 41 is passed through the insertion passage S. As a result, the electric wire 41 drawn from the connector 40 is covered and protected.

Here, the connector cover 100 according to the reference example will be described.
The same components as those of the connector cover 10 according to the present embodiment are designated by the same reference numerals, and the description thereof will be omitted.
FIG. 6 is a perspective view of the connector cover according to the reference example. FIG. 7 is a sectional view taken along line II-II in FIG. 6 for explaining a state during assembly.

As shown in FIGS. 6 and 7, the connector cover 100 according to the reference example includes a second cover 12 having a mating portion 35 without a guide rib 38. Further, the second cover 12 is not provided with the guide rib 38 of the mating portion 36.

In the connector cover 100, if the electric wire 41 protruding from the holding groove portion 23 is placed on the mating portion 25 of the first cover 11, the electric wire 41 is placed on the mating portion 25 of the first cover 11 when the second cover 12 is abutted against the first cover 11. It bites into the mating portions 25 and 36 of the first cover 11 and the second cover 12 (see FIG. 7).

Further, in the connector cover 100, if the electric wire 41 protruding from the holding groove portion 23 is placed on the mating portion 26 of the first cover 11, the electric wire 41 is abutted against the first cover 11 when the second cover 12 is abutted against the first cover 11. It bites into the mating portions 26 and 36 of the first cover 11 and the second cover 12.

Therefore, in the connector cover 100 according to this reference example, when the second cover 12 is rotated to butt and assemble the first cover 11 and the second cover 12, the electric wire from the holding groove portion 23 of the first cover 11 is assembled. You must always be careful not to stick out 41. Therefore, it takes time and effort to accommodate the electric wire 41 during the assembly work.

On the other hand, in the connector cover 10 according to the present embodiment, even if the electric wire 41 protruding from the holding groove portion 23 is placed on the mating portions 25 and 26 of the first cover 11, it is possible to suppress the biting of the electric wire 41. Specifically, the electric wire 41 mounted on the mating portion 25 has an inclined surface 75a formed on the guide rib 75 of the mating portion 35 of the second cover 12 when the second cover 12 is abutted against the first cover 11. It is pushed toward the insertion passage S including the holding groove portions 23 and 33 (in the direction of arrow B in FIG. 4). Similarly, the electric wire 41 mounted on the mating portion 26 is held by the inclined surface 38a formed on the guide rib 38 of the mating portion 36 of the second cover 12 when the second cover 12 is abutted against the first cover 11. It is pushed toward the insertion passage S including the grooves 23 and 33. Therefore, the electric wire 41 can be easily accommodated at the time of assembly, and the assembly workability can be improved.

Moreover, the guide rib 75 that pushes the electric wire 41 mounted on the mating portion 25 into the insertion passage S including the holding groove portions 23 and 33 is formed on the lock piece 55 that locks the first cover 11 and the second cover 12 in a state of being abutted against each other. doing. Therefore, it is possible to add a biting prevention function while suppressing the increase in size of the connector cover 10.

Further, a bite prevention rib 71 for suppressing the entry of the electric wire 41 into the lock hole 51 is formed in the lock hole 51 of the first cover 11 into which the lock piece 55 is inserted. Therefore, it is possible to suppress the entry of the electric wire 41 into the lock hole 51 constituting the lock mechanism that locks the first cover 11 and the second cover 12 in a state of being butted against each other. As a result, it is possible to suppress the entry of the electric wire 41 into the lock hole 51, and the guide rib 75 formed in the lock piece 55 can smoothly guide the electric wire 41 into the insertion passage S.

Further, the lock piece 55 having the guide rib 75 and the bite prevention rib 71 are displaced in the pull-in direction of the electric wire 41, and overlap each other along the pull-in direction of the electric wire 41 in the butt state of the first cover 11 and the second cover 12. It is placed in position. Therefore, it is possible to suppress the biting of the electric wire 41 by providing the lock piece 55 having the guide rib 75 and the biting prevention rib 71 while suppressing the bulkiness of the dimension in the width direction.

The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, dimensions, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

For example, in the above embodiment, a corrugated tube 80 that covers and protects the outer periphery of the electric wire 41 is provided, and a structure in which the corrugated tube 80 is held by the connector cover 10 is illustrated, but the corrugated tube 80 does not necessarily have to be provided.

Here, the features of the above-described connector cover embodiment of the present invention are briefly summarized and listed below in [1] to [3], respectively.
[1] A connector cover (10) that is attached to the connector (40) and covers the electric wire (41) drawn from the connector (40).
It has a pair of covers (first cover 11, second cover 12) that are butted against each other and assembled to the connector (40).
The covers (first cover 11, second cover 12) are
Retaining groove portions (23, 33) forming an insertion passage (S) through which the electric wire (41) is inserted by being abutted against each other.
A mating portion (25, 26, 35, 36) composed of both edges of the holding groove portion (23, 33) and a mating portion (25, 26, 35, 36).
A lock piece (first cover 11) that is provided on at least one cover (second cover 12) and locks the other cover (first cover 11) with the covers (first cover 11, second cover 12) abutting against each other. 55) and
Have,
The lock piece (55) has an inclined surface (75a) that is inclined in a direction that gradually separates from the holding groove portions (23, 33) toward the abutting direction of the covers (first cover 11, second cover 12). A guide rib (75) that pushes the electric wire (41) into the insertion passage (S) by the inclined surface (75a) when the covers (first cover 11, second cover 12) are abutted against each other. Is formed,
The connector cover is characterized by that.
[2] The other cover (first cover 11) is accommodated by inserting the lock piece (55) when the covers (first cover 11, second cover 12) are abutted against each other. It has a lock hole (51) and has a lock hole (51).
The lock hole (51) is provided with a bite prevention rib (71) that suppresses the entry of the electric wire (41).
The connector cover according to [1].
[3] The lock piece (55) having the guide rib (75) and the bite prevention rib (71) are displaced in the pull-in direction of the electric wire (41), and the covers (first covers 11, second). The covers 12) are arranged at positions where they overlap each other along the pull-in direction of the electric wires (41) in a state of being butted against each other.
The connector cover according to [2].

10: Connector cover 11: First cover (cover)
12: Second cover (cover)
23, 33: Holding groove 25, 26, 35, 36: Alignment 40: Connector 41: Electric wire 51: Lock hole 55: Lock piece 71: Biting prevention rib 75: Guide rib 75a: Inclined surface S: Insertion passage

Claims (3)

A connector cover that is attached to a connector and covers an electric wire drawn from the connector.
It has a pair of covers that are abutted against each other and assembled to the connector.
The cover is
A holding groove portion that forms an insertion passage through which the electric wire is inserted by being abutted against each other,
A mating portion composed of both edges of the holding groove portion and
A lock piece provided on at least one cover and locking the other cover with the covers abutting against each other.
Have,
The lock piece has an inclined surface that is gradually inclined in a direction away from the holding groove portion in the abutting direction of the covers, and when the covers are abutted against each other, the electric wire is inserted by the inclined surface. Guide ribs that push out into the aisle are formed,
The connector cover is characterized by that. The other cover has a lock hole into which the lock piece is inserted and accommodated when the covers are abutted against each other.
The lock hole is provided with a bite prevention rib that suppresses the entry of the electric wire.
The connector cover according to claim 1. The lock piece having the guide rib and the bite prevention rib are arranged at positions where they are displaced in the pull-in direction of the electric wire and overlap each other along the pull-in direction of the electric wire in a state where the covers are butted against each other.
The connector cover according to claim 2.

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