JPH0734584U - Joint connector - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a joint connector that can keep the locked holder even if an excessive tensile force is generated between the short-circuit bus bar and the connector housing. [Structure] A connector housing 1 in which a female terminal with an electric wire is inserted in advance and a short-circuit bus bar 7 inserted in the connector housing 1 are provided.
A connector housing body 4 in which a plurality of terminal accommodating chambers 8 are arranged inside is integrally formed on the outer surface of the connector housing body 4, and the proximal end side is rotatably supported by a hinge portion 5.
The connector housing body 4 is provided with a holder 2 having a closing portion 2a for closing the inlet of the terminal accommodating chamber 8 provided on the front end side thereof, and a locking hole 3 formed on a side surface of the holder 2 on the free end side is provided with a connector housing. The rear surface engaging portion 3a of the locking hole 3 and the rear surface engaging portion 6a of the locking protrusion 6 are wedge-coupled so as to be locked by the locking protrusion 6 formed on the side surface of the main body 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a joint connector having a shape of a locking portion of a connector housing, and more securely locking a holder.

[0002]

[Prior art]

 Conventionally, a joint connector is composed of a connector housing 11 in which a female terminal with electric wire (not shown) is inserted in advance and a short-circuit bus bar 17 inserted in the connector housing 11 as shown in FIG. The connector housing 11 is integrally molded on the outer surface of the connector housing main body 14 and the connector housing main body 14 in which a plurality of terminal accommodating chambers 18 are arranged side by side, and the proximal end side is rotatably supported by the hinge portion 15. And a holder 12 having a closing portion 12a formed on the front end side for closing the inlet of the terminal housing chamber 18 provided on the front end side of the connector housing body 14, and is formed on the side surface of the free end side of the holder 12. The locking hole 13 is configured to be locked by a locking projection 16 formed on the side surface of the connector housing body 14.

FIG. 6 shows a state in which the short-circuit bus bar 17 is inserted into the connector housing 11 and the holder 12 is locked to the connector housing body 14. As shown in FIG. 5, the locking projections 16 are formed in a substantially rectangular column shape, and are integrally formed on both side surfaces of the connector housing main body 14. Further, as shown in FIG. 7, the rear surface engaging portion 16a of the locking projection 16 is formed at a right angle to the side surface of the connector housing body 14. On the other hand, the locking holes 13 are formed in a square shape on both sides of the holder 12, as shown in FIG. As shown in FIG. 7, the locking hole 13 has a larger size and shape than the locking projection 16, and the rear surface engaging portion 13a is formed at a right angle to the rear surface of the holder 12.

The two do not come into contact with each other as shown in FIG. 7 when they are simply fitted, but excessive pulling is applied between the short-circuit bus bar 17 and the connector housing 11 when the harness is assembled to an automobile, for example. When a force is generated, the holder 12 is moved and locked in a state where the rear surface engaging portion 16a of the locking protrusion 16 and the rear surface engaging portion 13a of the locking hole 13 are in contact with each other.

[0005]

[Problems to be solved by the device]

 However, conventionally, when an excessive pulling force is generated between the short-circuit bus bar and the connector housing, for example, when the harness is assembled to an automobile, the locked holder is unlocked, and the short-circuit bus bar is connected to the connector. There was a problem that it came off from the housing.

[0006]

[The purpose of the device]

 The object of the present invention is to prevent the locked holder from being easily unlocked even if an excessive tensile force is generated between the short-circuit bus bar and the connector housing, for example, when assembling a harness to an automobile. It is to provide a joint connector that can maintain a stop.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention comprises a connector housing and a short-circuit bus bar inserted into the connector housing. The connector housing has a plurality of terminal accommodating chambers arranged in parallel. The connector housing body and the outer surface of the connector housing body are integrally molded so that the base end side is rotatably supported by the hinge portion, and the terminal housing is provided on the entire free end side on the front end side of the connector housing body. The holder is formed with a closing portion that closes the inlet of the chamber, and the locking hole formed on the side surface of the holder on the free end side is locked to the locking projection formed on the side surface of the connector housing body. The joint connector configured as described above is characterized in that the rear surface engaging portion of the locking hole and the rear surface engaging portion of the locking projection are wedge-coupled to each other.

[0008]

[Action]

 According to the joint connector of the present invention configured as described above, when excessive tension is generated between the short-circuit bus bar and the connector housing, for example, when assembling a harness in an automobile, the holder moves and the locking projection The rear surface engaging portion and the rear surface engaging portion of the locking hole are brought into contact with each other, and the sharp engaging portion of the locking hole works so as to be locked in a state of biting into the locking projection.

[0009]

【Example】

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

As shown in FIG. 1, the joint connector of the present invention has a connector housing 1 in which a female terminal with a wire (not shown) is previously inserted and a short circuit inserted in the connector housing 1 as in the conventional connector. The connector housing 1 is composed of a bus bar 7 and a connector housing body 4 in which a plurality of terminal accommodating chambers 8 are arranged side by side, and the connector housing body 1 is integrally molded on the outer surface of the connector housing body 4 and has a hinge portion at the base end side. 5, a holder 2 rotatably supported by the connector housing body 4 and having a closing portion 2a for closing the inlet of the terminal accommodating chamber 8 provided at the tip end side of the connector housing body 4, and the free end of the holder 2 The engaging hole 3 formed on the side surface is adapted to be engaged with the engaging protrusion 6 formed on the side surface of the connector housing body 4. All the constituent elements of the connector housing 1 are made of integrally molded resin. FIG. 2 is a perspective view showing a state in which the short-circuit bus bar 7 is inserted into the connector housing 1 and the holder 2 is locked to the connector housing body 4.

The present invention is characterized in that the rear surface engaging portion 3a of the locking hole 3 and the rear surface engaging portion 6a of the locking projection 6 are wedge-coupled as shown in FIGS. 3 to 4. This point will be described in detail below.

First, as shown in FIG. 3, the locking projections 6 are formed in a substantially rectangular column shape, and are integrally formed on both side surfaces of the connector housing main body. Further, as shown in FIG. 4, in the rear surface engaging portion 6a of the locking projection 6, the space portion with respect to the surface of the connector housing body 4 forms an acute angle of, for example, 85 °. On the other hand, the locking holes 3 are formed in a square shape on both sides of the holder 2 as shown in FIG. Further, as shown in FIG. 4, the locking hole 3 has a larger dimension than the locking projection 6, and the rear surface engaging portion 3a has an acute angle of 85 ° with respect to the back surface of the holder 2. ing.

Both of them are not in contact with each other as shown in FIG. 4 when they are simply fitted, but excessive pulling is applied between the short-circuit bus bar 7 and the connector housing 1 when, for example, assembling a harness to an automobile. When a force is generated, the holder 2 moves and the rear surface engaging portion 6a of the locking protrusion 6 and the rear surface engaging portion 3a of the locking hole 3 come into contact with each other, and the acute angle portion of the locking hole 3 causes the engagement. It is locked in a state where it bites into the stop projection 6.

It is preferable that the lower surface engaging portion 6b of the locking projection 6 and the lower surface engaging portion 3b of the locking hole 3 are also wedge-coupled. Further, according to the experiment, the wedge coupling angle of the wedge coupling portion of the rear surface engaging portion 6a of the locking projection 6 and the rear surface engaging portion 3a of the locking hole 3 is preferably 85 °, but this is not limited. Instead, it can be arbitrarily selected.

[0015]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects.

[0016] By wedge-locking the locking hole and the rear-side engaging portion of the locking projection, the locking holding force against the tensile force generated between the short-circuit bus bar and the connector housing is increased, and reliable locking is performed. be able to. In other words, after locking the holder, even if an unexpectedly large tensile force is applied between the short-circuit bus bar and the connector housing, the locking can be maintained, and troubles that may occur when assembling electrical components in a vehicle can be prevented. Can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a joint connector of the present invention.

FIG. 2 is a perspective view showing completion of assembly of the joint connector of the present invention.

FIG. 3 is a perspective view showing a locking protrusion of the joint connector of the present invention.

FIG. 4 is a sectional view showing a locking hole and a locking projection of the joint connector of the present invention.

FIG. 5 is a perspective view showing an embodiment of a conventional joint connector.

FIG. 6 is a perspective view showing completion of assembly of a conventional joint connector.

FIG. 7 is a sectional view showing a locking hole and a locking projection of a conventional joint connector.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Connector housing 2 ... Holder 3 ... Locking hole 4 ... Connector housing main body 5 ... Hinge part 6 ... Locking protrusion 6a ... Rear surface engaging part 7 ... Short-circuit bus bar 8 ... Terminal accommodating chamber

Claims (1)

[Scope of utility model registration request] 1. A connector housing (1) and a short-circuit bus bar (7) inserted into the connector housing (1), the connector housing (1) having a plurality of terminal accommodating chambers therein. 8) is arranged in parallel with the connector housing body (4) and is integrally formed on the outer surface of the connector housing body (4) so that the proximal end side is rotatably supported by the hinge part (5) and the free end side front surface is formed. And a holder (2) having a closing portion for closing the inlet of the terminal accommodating chamber (8) provided on the front end side of the connector housing body (4), the side surface on the free end side of the holder (2). A joint connector configured such that the formed locking hole (3) is locked by a locking protrusion (6) formed on a side surface of the connector housing body (4), wherein the locking hole (3 ) Rear surface engaging part ( 3a) and the rear surface engaging portion (6a) of the locking projection (6) are wedge-coupled to each other.