JP2013025936A - Connector cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector cover capable of preventing a wire from vibrating in a wire housing chamber.SOLUTION: A connector cover 10 is installed on the wire pull-out side of a connector housing 2 and leads out the wire W that is pulled out from the connector housing 2, to the outside through a wire housing chamber 14. The connector cover 10 includes a wire holding part 16 that holds the wire W routed to the wire housing chamber 14.

Description

  The present invention relates to a connector cover to be mounted on a wire drawing side of a connector housing.

  As this type of conventional connector cover, those disclosed in Patent Document 1 and Patent Document 2 have been proposed.

  As shown in FIGS. 13A and 13B, the connector cover 100 includes a cover main body 101 and an electric wire pressing cover 111 connected to the cover main body 101 via a hinge portion 110. The cover main body 101 is attached to the wire drawing side of the connector housing 120. The cover body 101 has an electric wire accommodating chamber (not shown) inside and an electric wire outlet (not shown) opened to the outside. A pair of electric wire holding arms 102 project from the upper surface of the cover main body 101. A wire receiving groove 103 is provided between the pair of wire holding arms 102. The wire holding lid 111 is locked to the pair of wire holding arms 102 at a position where the opening of the wire receiving groove 103 is closed.

  The electric wire W drawn out from the connector housing 120 is accommodated in a state where the electric wire accommodation chamber is folded in a U shape, and is drawn out from the electric wire outlet. The electric wire W drawn out from the electric wire outlet is accommodated in the electric wire accommodation groove 103 while being covered with the covering tube T, and the tip thereof is drawn out to the outside.

  In the above conventional example, since the wire drawing portion of the connector housing 120 is covered with the connector cover 100, it is possible to prevent the wire drawing portion of the connector housing 120 from being directly exposed to water as much as possible. When a pulling force is applied to the electric wire W, the pulling force is received by the connector cover 100 (specifically, the position of the pair of electric wire holding arms 102), so that the pulling force is applied to the electric wire drawing position and the electric terminal of the connector housing 120. It can prevent acting on a connected terminal (not shown).

Japanese Patent Laid-Open No. 10-55849 JP-A-10-55848

  However, in the connector cover 100 of the conventional example, the electric wire W can vibrate freely in the electric wire housing chamber. Therefore, there is a problem that it is not possible to prevent problems due to vibration of the electric wire W in the electric wire housing chamber, for example, damage to the electric wire coating.

  The connector cover 100 mounted on the vehicle is particularly required to suppress the vibration of the electric wire W due to vehicle vibration as much as possible.

  Therefore, the present invention has been made to solve the above-described problems, and an object thereof is to provide a connector cover that can prevent the vibration of the electric wire in the electric wire accommodation chamber.

  The present invention is a connector cover that is mounted on the wire drawing side of a connector housing and guides the wires drawn from the connector housing to the outside through the wire housing chamber, and holds the wires arranged in the wire housing chamber. An electric wire holding part is provided.

  It is preferable to provide a waterproof plug presser for preventing the waterproof plug from moving in the direction of drawing out the electric wire with respect to the waterproof plug arranged at the wire outlet of the connector housing.

  The electric wire holding part is formed by a pair of electric wire holding arms for holding the electric wire, and the waterproof plug holding part is formed by a pair of holding piece parts divided through a slit, and each electric wire holding arm and Each pressing piece is preferably provided integrally with a continuous integral wall.

  It is preferable that the electric wire holding portion is formed by a pair of electric wire holding arms that hold the electric wire, and the waterproof plug pressing portion extends to an outer position in a bending deformation direction of the pair of electric wire holding arms.

  It is preferable that a drainage hole that opens to the outside is provided at a position that becomes the bottom surface of the electric wire housing chamber when the vehicle is assembled.

  According to the present invention, since the electric wire is held by the electric wire holding portion in the electric wire accommodation chamber, vibration of the electric wire in the electric wire accommodation chamber can be prevented.

FIG. 2 is an exploded perspective view of the connector, showing the first embodiment of the present invention. 1 shows a first embodiment of the present invention and is a side view of a connector. FIG. FIG. 3 is an inner view of the connector cover according to the first embodiment of the present invention. FIG. 3 shows the first embodiment of the present invention and is a cross-sectional view taken along line AA in FIG. 2. 1 is a partial perspective view of a connector cover according to a first embodiment of the present invention. FIG. 6 is an inner view of the connector cover according to the second embodiment of the present invention. FIG. 6 is a cross-sectional view of the connector cover according to the second embodiment of the present invention. FIG. 3 shows a third embodiment of the present invention and is a cross-sectional view of the connector cover (corresponding to the AA line in FIG. 2). FIG. 6 is an inner view of the connector cover according to the third embodiment of the present invention. FIG. 9 shows a third embodiment of the present invention and is an enlarged view of a main part of FIG. 8. FIG. 10 is a perspective view of a connector cover according to a fourth embodiment of the present invention. 4A and 4B show a fourth embodiment of the present invention, in which FIG. 4A is a cross-sectional view of a connector cover taken as an installation position when the vehicle is assembled (corresponding to the line AA in FIG. 2), and FIG. FIG. A prior art example is shown, (a) is a perspective view of the connector cover with which the connector housing was mounted | worn, (b) is sectional drawing which shows the state with which the electric wire was hold | maintained with the connector cover.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1 to 5 show a first embodiment of the present invention. 1 and 2, the connector 1 includes a connector housing 2, a connector cover 10 according to the present invention attached to the connector housing 2, and a corrugated tube 30 having one end fixed to the connector cover 10. .

  The connector housing 2 has a connector fitting chamber (not shown) opened on the front surface and a pair of wire outlets 3 opened on the rear surface. A mating connector (not shown) is fitted into the connector fitting chamber. A pair of terminals (not shown) to which the terminals (not shown) of the mating connector are connected are arranged at the inner position of the connector fitting chamber. The terminal of the electric wire W is connected to each terminal, respectively. The pair of electric wires W are drawn to the outside from the pair of electric wire outlets 3. A waterproof plug 4 attached to the outer periphery of the electric wire W is press-fitted into each electric wire outlet 3. Each waterproof plug 4 prevents water or the like from entering the connector housing 2 from the wire outlet 3. A cover mounting wall 5 is integrally provided on the rear side of the connector housing 2. The cover mounting wall 5 surrounds the entire periphery of the pair of wire outlets 3. Lock grooves 6 are provided on both sides of the cover mounting wall 5.

  As shown in detail in FIGS. 3 and 4, the connector cover 10 includes a cover main body 11 and a corrugated lid portion 21 connected to a side portion of the cover main body 11 via a hinge portion 20.

  The cover main body 11 includes an electric wire cover main body portion 12 and a corrugated holding portion 13 provided integrally below the electric wire cover main body portion 12. An electric wire housing chamber 14 is provided inside the electric wire cover main body 12. Lock beaks 15 are respectively provided on both sides of the wire cover main body 12. The connector cover 10 is attached to the connector housing 2 by the pair of lock beaks 15 engaging with the pair of lock grooves 6 of the cover mounting wall 5. In the mounted state of the connector cover 10, the electric wire cover main body 12 is fitted in a state where the front end side thereof partially overlaps the rear end side of the cover mounting wall 5. Thereby, the electric wire accommodating chamber 14 is almost closed.

  On the side of the electric wire housing chamber 14 of the electric wire cover main body 12, electric wire holding parts 16 are projected in two places on the left and right. Each electric wire holding part 16 is formed of a pair of electric wire holding arms 16a for holding each electric wire W. Each electric wire W drawn from the electric wire outlet 3 of the connector housing 2 is routed to the electric wire housing chamber 14 while being held by the pair of electric wire holding arms 16a.

  When the electric wire W is pushed into the gap, the pair of electric wire clamping arms 16a bend and deform in a direction to widen the gap, and allow the insertion of the electric wire W. When the electric wire W is pushed in from the narrow position of the gap to the back, the pair of electric wire clamping arms 16a clamps the electric wire W by the bending return force. Therefore, the electric wire holding part 16 holds the electric wire W in a state in which free vibration is suppressed.

  On the side of the electric wire housing chamber 14 of the electric wire cover main body 12, waterproof plug pressing portions 17 are provided in two protruding positions on the left and right sides. Each waterproof plug holding portion 17 is a rod having a semicircular arc in cross section. The tip of each waterproof plug pressing portion 17 is in contact with the waterproof plug 4. Movement of the waterproof plugs 4 in the wire drawing direction is prevented by the waterproof plug holding portions 17.

  As shown in FIGS. 1, 2, and 5, a corrugated lid portion 21 is connected to an end portion of the corrugated holding portion 13 via a hinge portion 20. Lock beaks 22 are provided on both sides of the corrugated holding portion 13, and lock arms 23 are provided on both ends of the corrugated lid portion 21. When the lock beak 22 of the corrugated holding part 13 is engaged with the lock arm 23 of the corrugated cover part 21, the corrugated cover part 21 is united with the corrugated holding part 13. A corrugated tube holding chamber 24 is formed inside the corrugated holding part 13 and the corrugated lid part 21. One end side of the corrugated tube holding chamber 24 communicates with the wire housing chamber 14, and the other end side opens to the outside. The inner wall of the corrugated tube holding chamber 24 is formed on the uneven wall 25 corresponding to the outer peripheral uneven shape of the corrugated tube 30. In a state where the corrugated lid portion 21 is combined with the corrugated holding portion 13, one end side of the corrugated tube 30 is engaged with the corrugated holding portion 13 and the concavo-convex wall 25 of the corrugated lid portion 21. Thus, the corrugated tube 30 is fixed to the connector cover 10 at one end side. A pair of electric wires W arranged in the electric wire accommodating chamber 14 is drawn out from the connector cover 10 through the corrugated tube 30.

  As described above, the connector cover 10 includes the electric wire holding portion 16 that holds the electric wires W arranged in the electric wire accommodation chamber 14. Therefore, since the electric wire W is held by the electric wire holding part 16 in the electric wire housing chamber 14, vibration of the electric wire W in the electric wire housing chamber 14 can be prevented.

  The connector cover 10 is provided with a waterproof plug pressing portion 17 that prevents the waterproof plug 4 on the connector housing 2 side from moving in the wire drawing direction. Therefore, even if the pulling force of the electric wire W acts on the waterproof plug 4, it is possible to prevent the waterproof plug 4 from moving from the electric wire outlet 3 due to movement in the electric wire drawing direction.

(Second Embodiment)
6 and 7 show a second embodiment of the present invention. This second embodiment differs from the first embodiment only in the configuration of the wire holding part 16 and the waterproof plug holding part 17. Other configurations are the same. About the same structure, the same code | symbol as 1st Embodiment is attached | subjected to drawing, description is abbreviate | omitted, and only a different structure is demonstrated.

  That is, as shown in FIGS. 6 and 7, each electric wire holding portion 16 is formed by a pair of electric wire holding arms 16 a that hold the electric wires W. Each waterproof plug pressing portion 17 is formed by a pair of pressing piece portions 17a divided through a slit 18a. And each electric wire clamping arm 16a and each pressing piece part 17a are integrally provided by the continuous integral wall part 19. As shown in FIG. A slit 18 b is provided between the end of each wire clamping arm 16 a on the side opposite to the side where the pressing piece 17 a continues and the peripheral wall 11 a of the cover body 11. By the slits 18a and 18b at both ends, the electric wire holding arm 16a side of each integral wall portion 19 is bent and deformed integrally with the pressing piece portion 17a side to hold the electric wire W.

  In the second embodiment, the same operation and effect as in the first embodiment can be obtained.

  In the second embodiment, since the wire clamping arm 16a and the pressing piece 17a are formed from the integral wall portion 19, the structure of the mold can be simplified. Moreover, the resin circumference at the time of injection molding is good.

(Third embodiment)
8 to 10 show a third embodiment of the present invention. This third embodiment is different from the first embodiment only in the configuration of the waterproof plug retainer 17. Other configurations are the same. About the same structure, the same code | symbol as 1st Embodiment is attached | subjected to drawing, description is abbreviate | omitted, and only a different structure is demonstrated.

  That is, as shown in FIG. 8 and FIG. 9, each waterproof plug retainer 17 is extended by L dimension at both ends compared to the first embodiment, and the outer side of the pair of electric wire holding arms 16 a in the bending deformation direction. Are partially overlapped. The extension part of each waterproofing stopper holding part 17 is arrange | positioned in the outer side position which opened the space | interval for the bending deformation required in order to clamp the electric wire W with respect to a pair of electric wire clamping arm 16a. Therefore, when the electric wire W is held, if the pair of electric wire holding arms 16a are excessively bent and deformed, the waterproof plug holding portion 17 is prevented as shown by a virtual line in FIG.

  In the third embodiment, the same operation and effect as in the first embodiment can be obtained.

  In the third embodiment, the waterproof plug pressing portion 17 is extended to an outer position in the bending deformation direction of the pair of electric wire holding arms 16a. Accordingly, excessive bending of the pair of electric wire holding arms 16a can be prevented by the waterproof plug pressing portion 17, so that damage or damage to the electric wire holding arms 16a due to excessive deflection transition of the electric wire holding arms 16a can be prevented.

  In addition, although the over-deflection restricting wall of the electric wire holding arm 16a may be provided separately from the waterproof pressing portion 17, the structure of the mold can be simplified by providing it integrally as in the third embodiment. Moreover, the resin circumference at the time of injection molding is good.

(Fourth embodiment)
11 and 12 show a fourth embodiment of the present invention. The fourth embodiment differs from the first embodiment only in the partial configuration of the cover main body 11 of the connector cover 10. Other configurations are the same. About the same structure, the same code | symbol as 1st Embodiment is attached | subjected to drawing, description is abbreviate | omitted, and only a different structure is demonstrated.

  That is, as shown in FIG. 11 and FIG. 12A, the connector cover 10 is provided with a drainage hole 29 at a position that becomes the bottom surface of the wire housing chamber 14 when the connector is assembled into the vehicle. The drainage hole 29 opens to the outside. The drain holes 29 are provided at a plurality of locations between the pair of electric wire clamping arms 16a. The drainage hole 29 is formed by using a die punching hole when the connector cover 10 is injection-molded with synthetic resin.

  In the fourth embodiment, the same operation and effect as in the first embodiment can be obtained.

  In the fourth embodiment, the connector cover 10 includes a drainage hole 29 that opens to the outside at a position that becomes the bottom surface of the wire housing chamber 14 when the vehicle is assembled. Therefore, as shown by an arrow in FIG. 12B, even if water or the like enters the wire housing chamber 14 of the connector cover 10, it is possible to prevent water or the like from accumulating in the wire housing chamber 14.

  The drainage hole 29 uses a die punching hole that is indispensable for injection molding the connector cover 10. Therefore, it is possible to prevent the mold structure from becoming complicated. It also contributes to effective use of the die punch holes.

DESCRIPTION OF SYMBOLS 2 Connector housing 3 Electric wire exit 4 Waterproof plug 10 Connector cover 14 Electric wire accommodating chamber 16 Electric wire holding part 16a Electric wire holding arm 17 Waterproof plug pressing part 17a Holding piece part 18a, 18b Slit 19 Integrated wall part 29 Drain hole W Electric wire

Claims (5)

A connector cover that is mounted on the wire drawing side of the connector housing and leads the wire drawn from the connector housing to the outside through the wire housing chamber,
A connector cover, comprising: an electric wire holding portion for holding the electric wires arranged in the electric wire accommodation chamber. The connector cover according to claim 1,
A connector cover, comprising: a waterproof plug pressing portion that prevents movement of the waterproof plug in the wire drawing direction with respect to the waterproof plug arranged at the wire outlet of the connector housing. The connector cover according to claim 2,
The electric wire holding part is formed by a pair of electric wire holding arms that hold the electric wire,
The waterproof plug pressing part is formed by a pair of pressing piece parts divided through a slit, and each electric wire holding arm and each pressing piece part are integrally provided by a continuous integral wall part. And connector cover. The connector cover according to claim 2,
The electric wire holding part is formed by a pair of electric wire holding arms that hold the electric wire,
The connector cover according to claim 1, wherein the waterproof plug pressing portion extends to an outer position in a bending deformation direction of the pair of wire holding arms. The connector cover according to any one of claims 1 to 4,
A connector cover comprising a drainage hole that opens to the outside at a position that becomes a bottom surface of the electric wire housing chamber when the vehicle is assembled.

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