JP2011090842A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of alleviating a burden to an electric wire. <P>SOLUTION: The connector 100 is provided with a guide member 15 which is connected to a contact in a connector housing 13 and guides an electric wire 17 led out from the rear end 37 of the connector housing 13. The guide member 15 is provided with a flexible wall 47 to which the electric wire 17 is locked and which can deflect so as to alleviate a load added by bending of the electric wire 17. The guide member 15 can be made a structure which has a fixed wall 43 formed by a pair of side walls 53a and a bottom wall 41 connecting the side walls and a flexible wall 47 which is arranged opposed to the bottom wall 41 of the fixed wall 43 with a deflection space 45 in-between and is located between the side walls. Further, the guide member 15 may serve as a spacer which regulates engagement release of a lock arm 29 which carries out engagement with a mating connector housing. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a connector from which an electric wire is led out from a rear end of a connector housing.

  A connector having a wire protector means for preventing an electric wire connected to the connector from coming into contact with other components and damages the coating or disconnecting the core wire is known (for example, see Patent Document 1). . As shown in FIG. 7, the connector 500 with the wire protector is slidably mounted on the outer peripheral surface of the connector 503 connected to the contacts, as shown in FIG. As described above, in the process of coupling the connector 503 to the mating connector 505, the connector 503 comes into contact with the outer peripheral end surface of the mating connector 505, and is pressed backward along the outer peripheral surface of the connector 503 to a position covering the electric wire 501. The electric wire protector 507 is provided.

JP 7-249451 A JP 2000-235881 A

  However, the protector is provided to protect the electric wire led out from the rear end of the connector. However, when the connector housing vibrates, the protector's end of the electric wire bend at the end of the protector (scratches, breakage, etc.) is prevented. I can't. Further, Patent Document 2 discloses a connector in which a rear holder is connected to the rear end of a housing so as to protect an electric wire. However, even in this connector, a failure in a bent portion of the electric wire cannot be avoided, and the load on the electric wire can be reduced. It doesn't work at all.

  This invention is made | formed in view of the said condition, The objective is to provide the connector which can reduce the burden on an electric wire.

The above object of the present invention is achieved by the following configuration.
(1) A connector including a guide member that guides an electric wire connected to a contact in the connector housing and led out from a rear end of the connector housing,
The connector is characterized by comprising a flexible wall that is bent so that an electric wire is locked and a load applied by the bending of the electric wire is reduced.

  According to this connector, the electric wire led out from the rear end of the connector housing is locked to the flexible wall of the guide member. When the connector housing vibrates, the electric wire is elastically displaced by integrating the flexible wall. Thereby, a load (stress) is hard to concentrate in the bending part of an electric wire. Moreover, vibration is also attenuated by the elastic displacement of the flexible wall.

(2) The connector according to (1),
The guide member is provided with a fixed wall formed by a pair of side walls and a bottom wall connecting the side walls, and a flexible wall located between the side walls and arranged to face the bottom wall of the fixed wall by providing a bending space. And a wall.

  According to this connector, the flexible wall is surrounded by the pair of side walls and the bottom wall, hardly interferes with other members, and can be freely bent integrally with the electric wire. That is, a highly reliable flexible structure can be obtained.

(3) The connector according to (1) or (2),
The connector characterized in that the guide member also serves as a spacer for restricting disengagement of a lock arm that engages with a mating connector housing.

  According to this connector, the double lock structure of the lock arm with respect to the mating connector housing can be configured without using a dedicated member, and the fitting reliability can be improved without increasing the number of parts.

(4) The connector according to (2) or (3),
The guide member is configured to lock an electric wire provided along a surface of the flexible wall opposite to the bending space by a harness tape wound around the fixed wall together with a harness tape. .

  According to this connector, the flexible wall is arranged along the electric wire by attaching the guide member to the connector housing from which the electric wire is led out from the rear end. By winding the electric wire and the fixed wall all together using a harness tape, the electric wire can be reliably locked to the flexible wall by a simple operation.

  According to the connector of the present invention, the guide member includes a guide member that guides the electric wire led out from the rear end of the connector housing, and the guide member can be bent to lock the electric wire and reduce a load applied by the bending of the electric wire. Since the flexible wall is provided, the flexible wall is displaced in the direction of the load, and the burden on the electric wire can be reduced.

1 is a perspective view of a connector according to the present invention. It is a top view of the connector shown in FIG. It is the rear view which looked at the rear end of the connector shown in FIG. (A) is a side view of a connector in which a lead-out electric wire is locked with a harness tape, and (b) is a sectional view thereof. It is a disassembled perspective view of the connector shown in FIG. (A) is sectional drawing of the connector housing from which the electric wire was derived | led-out, (b) is sectional drawing of the connector with which the guide member was mounted | worn, (c) is sectional drawing of the connector with which the load was added to the derived | led-out electric wire. It is a perspective view of the conventional connector. (A) is sectional drawing before the mating connector housing fitting of the conventional connector, (b) is sectional drawing after fitting.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a connector according to the present invention.
Connector 100 according to the present embodiment is a female connector in which female contact 11 (see FIG. 6) is accommodated. In this specification, the connector 100 will be described with the mating side of the mating connector housing as the front and the opposite side as the rear. The connector 100 is roughly divided into a connector housing 13 and a guide member 15. The connector housing 13 includes the contact 11 and an electric wire 17 connected to the contact 11.

  The connector housing 13 has a cylindrical housing body 19 that accommodates the contacts 11 at the center of the fitting. The housing body 19 has a plurality of terminal accommodating chambers 21 (see FIG. 6) side by side. The terminal accommodating chamber 21 opens a male tab receiving port 23 for receiving a male contact (not shown) of the mating connector on the front surface.

  A hood portion 27 is positioned on the outer periphery of the housing main body 19 with a mating space 25 of the mating connector housing therebetween, and the hood portion 27 is connected to the housing main body 19 at the rear end. A lock arm 29 is provided on the upper surface of the housing body 19, and the lock arm 29 is connected to the connector housing 13 at the center, and the front and rear portions can swing up and down. The lock arm 29 is unlocked when the arm front portion 31 (see FIG. 4B) is locked to the mating connector housing and the arm rear portion 33 is pressed. A pressing space 35 is provided below the arm rear portion 33.

2 is a plan view of the connector shown in FIG. 1, and FIG. 3 is a rear view of the rear end of the connector shown in FIG.
The guide member 15 is attached to the rear end 37 (see FIG. 4) of the connector housing 13. The guide member 15 has a pair of side walls 39a and 39b shown in FIG. The side walls 39 a and 39 b are connected by the bottom wall 41 of the fixed wall 43. A flexible wall 47 is disposed opposite to the bottom wall 41 of the fixed wall 43 with a bending space 45 therebetween. The flexible wall 47 is located between the side walls 39a and 39b via slits 49 and 49 on both sides. The electric wire 17 is locked to the flexible wall 47. That is, the flexible wall 47 has a cantilever shape in which a flat front portion (base end portion) is connected to the fixed wall 43 and a rear portion (tip end portion) is a free end. The flexible wall 47 bends so as to reduce the load applied by the bending of the electric wire 17. That is, in the flexible wall 47, the rear portion 47a (see FIG. 1) can be elastically displaced in the direction of narrowing the bending space 45.

  At the front portion of the fixed wall 43 of the guide member 15, a spacer plate portion 51 as a spacer shown in FIG. 3 is erected parallel to the rear end 37 of the connector housing 13. The spacer plate portion 51 has a sandwiching piece 51a (see FIGS. 4B and 5) that is disposed in the pressing space 35 of the lock arm 29 when the guide member 15 is mounted. The sandwiching piece 51 a arranged in the pressing space 35 hits the arm rear portion 33 of the lock arm 29. That is, the spacer plate part 51 regulates the disengagement of the lock arm 29 that engages with the mating connector housing. By providing the spacer plate portion 51 on the guide member 15, the double lock structure of the lock arm 29 with respect to the mating connector housing can be configured without using a dedicated member, and the fitting reliability is increased without increasing the number of parts. .

  Curved locking walls 53 a and 53 b are formed on the left and right of the front portion of the fixed wall 43. The inner sides of the locking walls 53a and 53b are connected to support walls 55a and 55b shown in FIG. A locking receiving portion 57 is formed on the front edge of the locking walls 53a and 53b.

FIG. 4A is a side view of a connector in which a lead-out electric wire is locked with a harness tape, and FIG. 4B is a cross-sectional view thereof. FIG. 5 is an exploded perspective view of the connector shown in FIG. 1 and shows a state where the connector housing 13 and the guide member 15 are separated.
The locking receiving portion 57 has a U-shaped cutout portion 61 that engages with a position restricting projection 59 protruding from the side wall of the connector housing 13. The latch receiving portion 57 has a latch portion 63 that opens in a window shape behind the notch 61. The locking portion 63 receives and locks the locking protrusion 65 protruding from the side wall of the connector housing 13. As a result, the guide member 15 is positioned and supported on the rear end 37 of the connector housing 13 so that it cannot be dropped off.

  The electric wire 17 connected to the contact 11 in the connector housing 13 and led out from the rear end 37 of the connector housing 13 is locked and guided by the guide member 15. The guide member 15 locks the electric wire 17 provided along the surface of the flexible wall 47 opposite to the bending space 45 by a harness tape 67 that is wound around the outer periphery together with the fixed wall 43.

  The harness tape 67 is an insulating adhesive tape used for electrical equipment such as vehicles, aircraft, ships, houses, factories and the like. The harness tape 67 has flexibility and extensibility, and is excellent in terms of flame retardancy, mechanical strength, heat distortion resistance, electrical insulation, moldability, and the like. For example, a polyvinyl chloride resin film can be preferably used.

  In the connector 100, the flexible wall 47 is arranged along the electric wire 17 by attaching the guide member 15 to the connector housing 13 from which the electric wire is led out from the rear end 37. By winding the electric wire 17 and the fixed wall 43 together using the harness tape 67, the electric wire 17 can be reliably locked to the flexible wall 47 by a simple operation. The fixed wall 43 preferably includes a protrusion 69 for preventing the harness tape 67 from being attached to the rear lower surface of the bottom wall 41.

Next, the operation of the connector 100 having the above configuration will be described.
6A is a cross-sectional view of the connector housing from which the electric wire is led out, FIG. 6B is a cross-sectional view of the connector to which the guide member is attached, and FIG. 6C is a cross-sectional view of the connector in which a load is applied to the lead-out electric wire. .
As shown in FIG. 6A, an electric wire 17 is connected to the connector housing 13. A contact 11 is connected to the conductor of the electric wire 17. The contact 11 is attached to the elastic locking piece 71 of the terminal accommodating chamber 21 so as not to be detached. The contact 11 is brought into contact with a tab (not shown) of a male contact entering from the male tab receiving port 23 and an electric contact elastic piece 83. An electric wire outlet hole 85 is continuously provided behind the terminal accommodating chamber 21. An annular packing 87 is externally attached to the outer periphery of the electric wire 17. The annular packing 87 provides an airtight and waterproof seal between the electric wire 17 and the electric wire outlet hole 85.

  As shown in FIG. 6B, the guide member 15 is attached to the rear end 37 of the connector housing 13 from which the electric wire 17 has been led out. The guide member 15 pushes the notches 61 of the side walls 39a and 39b forward so as to coincide with the position restricting protrusion 59 of the connector housing 13. Then, the notch 61 is engaged with the position restricting protrusion 59 and the engaging protrusion 65 is engaged with the engaging part 63 so that the guide member 15 is supported by the connector housing 13 so as not to drop off.

  After the guide member 15 is mounted, the outer circumference of the electric wire 17 is wound around the fixed wall 43 together with the harness tape 67 and locked to the flexible wall 47 as shown in FIG.

  As described above, the connector 100 has the electric wire 17 led out from the rear end 37 of the connector housing 13 engaged with the flexible wall 47 of the guide member 15 in a use state where the connector 100 is mounted on a vehicle or the like. In this state, for example, when the connector housing 13 vibrates due to running of the vehicle or driving of the engine, the electric wire 17 tends to be bent at the rear end of the flexible wall 47. At this time, as shown in FIG. 6C, the flexible wall 47 is elastically displaced integrally in the direction in which the tensile load F is applied. This makes it difficult for the load (stress) to concentrate at the bent portion 89 of the electric wire 17.

  Further, since the flexible wall 47 is elastically displaced, the vibration energy is consumed in the force for elastically deforming the flexible wall 47. As a result, vibration is also attenuated. That is, the flexible wall 47 functions as a vibration damper.

  The flexible wall 47 is surrounded by a pair of side walls 39 a and 39 b and a bottom wall 41. Thereby, the flexible wall 47 does not easily interfere with other members (such as other wire harnesses), and can be freely bent integrally with the electric wire 17. That is, a highly reliable flexible structure can be obtained.

  Therefore, according to the connector 100 according to the present embodiment, the guide member 15 that guides the electric wire 17 led out from the rear end 37 of the connector housing 13 is provided. The guide member 15 locks the electric wire 17 and the electric wire 17. Since the flexible wall 47 that can be bent so as to reduce the load applied by the bending is provided, the flexible wall 47 is displaced in the direction of the load, and the burden on the electric wire 17 can be reduced.

DESCRIPTION OF SYMBOLS 11 Contact 13 Connector housing 15 Guide member 17 Electric wire 29 Lock arm 37 Rear end 39a, 39b A pair of side wall 41 Bottom wall 43 Fixed wall 45 Deflection space 47 Flexible wall 51 Spacer plate part 67 Harness tape 100 Connector

Claims (4)

A connector provided with a guide member that guides an electric wire connected to a contact in the connector housing and led out from the rear end of the connector housing,
The connector is characterized by comprising a flexible wall that is bent so that an electric wire is locked and a load applied by the bending of the electric wire is reduced. The connector according to claim 1,
The guide member is provided with a fixed wall formed by a pair of side walls and a bottom wall connecting the side walls, and a flexible wall located between the side walls and arranged to face the bottom wall of the fixed wall by providing a bending space. And a wall. The connector according to claim 1 or 2, wherein
The connector characterized in that the guide member also serves as a spacer for restricting disengagement of a lock arm that engages with a mating connector housing. The connector according to claim 2 or claim 3, wherein
The guide member is configured to lock an electric wire provided along a surface of the flexible wall opposite to the bending space by a harness tape wound around the fixed wall together with a harness tape. .

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