JPH07211361A - Connector device - Google Patents

Abstract

PURPOSE:To provide a connector device constituted so that deformation of a pressure contact terminal can be prevented and workability at installation work time can be improved. CONSTITUTION:A guide groove 65 is formed in a terminal housing chamber 62 of a housing 61, and a bending part 55 to bend an electric wire is arranged in a pressure contact terminal 51 to be housed in the terminal housing chamber 62, and plate-like projecting parts 56 are arranged in the electric wire pulling-out direction from both left and right ends of the bending part 55. Projections 57 to engage with the guide groove 65 are arranged in the projecting parts 56.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device,
More specifically, the present invention relates to a structure for preventing undesired deformation of a pressure contact terminal that constitutes a connector device.

[0002]

2. Description of the Related Art As is well known, various connector devices are widely used for connecting electric wires. Among them, there is a connector device using pressure contact terminals because of advantages such as easy automation of electric wire connection. Hereinafter, an example of a conventional connector device using pressure contact terminals will be described with reference to FIGS. 6 to 9. The structure of the connector device 1 is roughly divided into a pressure contact terminal 2, a housing 3, and a cover 4. The pressure contact terminal 2 includes a contact portion 21 for inserting a mating male terminal, a pressure contact connection portion 22 for pressure-connecting an electric wire W, which will be described later, a pair of insulation barrels 23 for clamping the electric wire W from the outside of the sheath, and a tension for the electric wire W. A bent portion 24 for preventing load is provided.

The housing 3 is formed by fitting a tenon protrusion 31a formed on the upper layer portion 3a and a tenon groove 31b formed on the lower layer portion 3b into one body, and the upper layer portion 3a and the lower layer portion 3 are integrated.
A groove-shaped terminal accommodating chamber 32 for accommodating the pressure contact terminal 2 is provided in b. The front surface of each terminal accommodating chamber 32, that is, FIG.
Insertion hole 32a for inserting the other terminal on the front side of
Is formed, and the rear end is an opening along with the upper part.
Reference numeral 33 denotes a partition wall, and projections 34 for locking the cover 4 are provided at the rear portions of both side surfaces of the housing 3. In the illustrated connector device 1, the cover 4 is applied from above and below the housing 3, but the configuration and the locking method of the cover 4 are the same in the upper and lower parts, so only one is shown in FIG.

On the other hand, the cover 4 closes each terminal accommodating chamber 32 from above, and is basically formed in a plate shape. However, locking claws 41 for locking the locking grooves 35 formed in the housing 3 are provided at both left and right ends of the front end portion, and lock pieces 43 having lock ports 42 formed at both left and right ends at the rear end side.
Is provided. Further, a plate-like elastic portion 44 is provided substantially in the center of the cover 4, and the elastic portion 44 has a lock projection 45 and an elastic portion 4 which are locked to the housing of the mating connector.
A lock release pressing protrusion 46 is provided for deforming 4 downward to unlock the lock protrusion 45.

Next, the assembly of the connector device 1 will be described. The pressure contact terminals 2 are accommodated in the respective terminal accommodating chambers 32 and positioned so that the insertion hole 32a and the contact portion 21a communicate with each other. Then, the electric wire W is inserted into the press-connecting connection portion 22 from above with the coating being applied, and is pushed downward by the press-connecting jig. As a result, the press contact blade 22a digs into the coating, the conducting wire in the electric wire W and the press contact terminal 2 are electrically connected to each other, and the pair of insulation barrels 23 are folded by the press contact jig. In this state, when the cover 4 is applied so as to close each terminal accommodating chamber 32, the electric wire W locked by the insulation barrel 23 is deformed upward along the bent portion 24 as shown in FIG. The pressing wall 47 formed at the rear end of the lower surface of the cover 4 deforms downward. That is,
The electric wire W is meandered in the vertical direction by the action of the bent portion 24 and the pressing wall 47, and even if a force such as pulling the electric wire W is applied, this force is not applied to the pressure contact connection portion 22, and the electric wire W The removal is prevented and the contact failure with the press contact terminal 2 is prevented.

[0006]

By the way, in the state where the cover 4 is put on as shown in FIG. 7, the rear end side of the pressure contact terminal 2, that is, the pressure contact connection portion 22 is pushed by the pressing wall 47 through the electric wire W.
The bent portion 24 and the like are pressed into the terminal accommodating chamber 32.
However, in the process of connecting the electric wire W under pressure and connecting the bar 4, the pressure contact terminal 2 is in an empty state. Moreover, since the bent portion 24 is formed by bending an iron plate or the like that constitutes the pressure contact terminal 2, it is difficult to deform when a force is applied from directly above the bent portion 24, but some circumstances before the cover 4 is applied. When a force like pulling the electric wire W is applied,
As shown by the imaginary line in FIG. 8, the bent portion 24 falls and is deformed. When the cover 4 is applied with the electric wire W kept falling and deformed in this way, the electric wire W can be pressed, but when the electric wire W is pulled, the force causes the entire press-contact terminal 2 to be pulled, or the press-connecting connection portion 22 to connect with the electric wire W. Various problems such as causing contact failure of the above occur. On the other hand, when the electric wire W is pulled upward, the rear end side of the pressure contact terminal 2 is lifted upward together with the electric wire W as shown by an imaginary line in FIG. In this case, the cover 4 cannot be smoothly applied, and means for pulling out the pressure contact terminal 2 to correct the rear end side to a normal shape and then reattaching or replacing the cover 4 is required. Contribute to the decline. An object of the present invention is to provide a connector device configured to prevent deformation of the pressure contact terminal and improve workability during assembly.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a housing in which a guide groove is formed in an inner wall surface of a terminal accommodating chamber for accommodating a pressure contact terminal to which an electric wire is electrically connected, and the electric wire of the pressure contact terminal. A bent portion for bending the electric wire and a protruding portion formed by extending both sides of the bent portion along the pulling direction of the electric wire on the pull-out side of the electric wire and preventing the bending deformation of the bent portion. And a pressure contact terminal provided with a protrusion formed on a side surface to engage with the guide groove to prevent bending deformation of the pressure contact terminal.

[0008]

In the connector device having the above-described structure, the guide groove is formed in the terminal accommodating chamber, and the plate-shaped protruding portion is formed in the wire withdrawing direction, that is, rearward from the left and right ends of the bent portion that bends the wire to the press contact terminal. Since the protrusion is provided with a protrusion that engages with the guide groove, when a force pulling the bent portion backward is applied, the protrusion acts like a so-called stick bar, and the bent portion It is possible to prevent the falling deformation of the. In addition, since the projection formed on the protruding portion is locked in the guide groove of the terminal accommodating chamber, the vertical position is regulated, and the bent portion and the bending contact terminal are not deformed when the wire is pulled upward. Can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a connector device to which the present invention is applied will be described in detail with reference to FIGS. FIG. 1 is a perspective view of a main part showing the structure of the connector device, FIG. 2 is a perspective view showing the structure of the connector device, and FIGS. 3 to 5 are cross-sectional views of the main part showing an assembling process of the connector device. First, the configuration of the pressure contact terminal 51 applied to the connector device 1 will be described with reference to FIG. The pressure contact terminal 51 is formed by pressing a single metal substrate, and is provided with a contact portion 52, a pressure contact connection portion 53, an insulation barrel 54, and a bent portion 55 from the front end side toward the rear end side. A plate-shaped protrusion 56 is provided to prevent the bending deformation of the bent portion 55 from the left and right ends of the bent portion 55 toward the rear end side. The plate-shaped protruding portion 56 lifts the pressure contact terminal 51. A protrusion 57 is provided to prevent deformation. The contact portion 52 is in contact with a mating terminal (not shown), such as a male terminal, so as to be able to conduct electricity, and is formed in the shape of an elongated box having a quadrangular cross section. The press-connecting connection portion 53 is the frame plate 5 standing upright.
3a is provided with two pairs of front and rear pressure contact blades 52b,
The press-contact blade 52b is cut into the coating of the electric wire W to be pushed in so as to come into contact with the conductor wire so as to be able to conduct electricity. The insulation barrel 54 holds the electric wire W integrally with the coating, and the bent portion 55 meanders the electric wire W in the vertical direction to prevent the electric wire W from coming off due to a pulling force or the like. In addition,
The protrusion 56 and the protrusion 57 will be described later in detail together with the assembly of the connector device 1.

Next, the housing 61 and the cover 71 will be described. The housing 61 is integrally molded using a synthetic resin, and in this embodiment, two terminal accommodating chambers 62 are formed in the upper layer and four terminal accommodating chambers 6 are formed in the lower layer.
2 is formed. However, the number and layer structure of the terminal accommodating chambers 62 are not limited to the illustrated configuration, and may be arbitrarily set as needed. The terminal accommodating chamber 62 is
Although a pair of left and right outer frame plates 63 and a partition plate 64 are formed in a longitudinal groove shape, the width of the terminal accommodating chamber 62 is set so that the press contact terminals 51 can be accommodated without rattling. The pressure contact terminal 5 is provided at the rear end of the terminal accommodating chamber 62.
A guide groove 65 is formed to guide the protrusion 57 formed in No. 1. The guide groove 65 is formed in each terminal accommodating chamber 62 as shown in an enlarged view in FIG. 1, but is omitted in FIG. 2 for convenience of illustration.

The tip side of each terminal accommodating chamber 62 is shown in FIGS.
As is clear from the above, it is closed like a box, and the contact portion 52 of the press contact terminal 51 is inserted into the box. An insertion hole 62b for inserting a mating terminal, for example, a male terminal 81, is formed in the front plate 62a. Also,
An elastic locking plate 62c is provided so as to cover a part of the upper space of the terminal accommodating chamber 62, and a locking projection 62d is formed at the tip of the lower surface of the locking plate 62c. The locking plate 62c and the locking protrusion 62d prevent the press contact terminal 51 from coming off. A locking plate 66 having elasticity is provided at the center of the upper layer of the housing 61.
An operation protrusion 66a for pushing the locking plate 66 downward and a locking protrusion 66b for locking the cover 71, which will be described later, are provided at the rear end portion of 6. Further, on the side surface of the outer frame plate 63, a locking projection 63a for locking a cover 71 described later is provided.

The cover 71 covers five surfaces except the rear end side of the housing 61, and the front plate 72 is shown in FIGS.
As shown in FIG. 5, an insertion hole 72a communicating with the insertion hole 62b formed in the housing 61 is formed. A central portion of the upper surface of the cover 71 is formed in an opening 73 from the front surface toward the rear end side, and a locking member 74 is provided so as to straddle the opening 73. The upper and lower sides of the rear end side of the cover 71 are formed to have a large diameter so that the electric wire W can be drawn out. A pair of left and right locking openings 76 and a notch 77 for guiding are formed on the inner surface of the left and right side plates 75 that form the cover 71. When the cover 71 covers the housing 61, in other words, inside the cover 71. When the housing 61 is housed in the housing 61, the locking projection 63a is locked in the locking opening 76, and the cover 71 and the housing 61 are held so as not to come out.

Next, the assembling of the connector device 1 will be described. At the time of assembling, as shown in FIG. 3, first, the pressure contact terminals 51 are housed in the respective terminal housing chambers 62. Pressure contact terminal 5
When the 1 is stored, the protrusion 57 is fitted into the guide groove 65, and is slid into the terminal storage chamber 62 as it is and stored. Then, the electric wire W is electrically connected to the press-connecting connection portion 53 by a jig, and the electric wire W is crimped to the press-connecting terminal 51 by the insulation barrel 54, and the electric wire W is bent upward along the bent portion 55. After that, the pressure contact terminal 51 is pulled out to the rear end side.

It should be noted that the protrusions 56 are provided on the left and right sides of the rear end of the bent portion 55 so as to extend to the rear end, and the lower surface of the protrusion 56 is the same as the substrate of the press contact terminal 51. In addition to being formed on a flat surface, the projection 57 is fitted in the guide groove 65. As a result, when the electric wire W is connected or even before the connection, even if a force to tilt the bent portion 55 backward is applied, the protruding portion 55
Is in contact with the lower surface of the terminal accommodating chamber 62, the bent portion 55
Prevent the falling and deformation of the. Further, when a force to tilt in the direction of the insulation barrel 54, that is, the front side is applied, the projection 57 is locked in the guide groove 6, so that the tilt deformation to the front is prevented. Further, as described with reference to FIG. 9, even when the electric wire W is pulled upward, the rear end side of the press contact terminal 51 may be deformed upward because the protrusion 57 is locked in the guide groove 65. Absent. As described above, according to the structure of the press contact terminal 51 in the present embodiment, it is possible to prevent the bent portion 55 and the press contact terminal 51 from being deformed.

In this way, as shown in FIG. 2, the pressure contact terminal 51 is assembled to the housing 61 and the electric wire W is connected. Next, the housing 61 is pushed into the cover 71. During the pushing, the locking projection 66b formed on the locking plate 66 contacts the lower surface of the locking member 74 to deform the locking plate 66 downward. Next, when the locking projection 66a rubs through the lower surface of the locking member 74, the locking plate 66 is elastically moved upward. Further, the locking projection 63a is guided by the notch 77 and enters the cover 71,
Then, it is fitted into the locking port 76. At this time, the side plate 75 bulges outward by the height of the locking projection 63a, but at the same time the locking projection 63a fits into the locking port 76, it returns to the original flat plate shape.

Therefore, the housing 61 and the cover 71 are locked at three points, and the integration of the two is firmly held. When the housing 61 is completely pushed into the cover 71, the insertion holes 62b, 7b
2a communicates with each other as shown in FIG. 5, and the male terminal 81 of the mating connector is inserted into the contact portion 52 of the press contact terminal 51 so as to be energizable. The lead-out portion of the electric wire W has a bent portion 5
Although it comes to protrude from the upper part of the terminal accommodating chamber 62 by 5, the rear end side of the cover 71 is formed to have a large diameter.
As shown in FIG. 5, it is pulled out of the connector device 1 while being sandwiched between the bent portion 55. Wire W in this state
Even if a pulling force is applied to
5 is prevented and the press contact terminal 51 is prevented from being deformed.

When the housing 61 is separated from the cover 71, the operating protrusion 66a is pushed downward with fingers or the like.
After allowing the locking protrusion 66b to pass under the locking member 74, the housing 61 is pulled out rearward. When the locking projection 63a extends from the locking port 76 to the guide notch 77, the side plate 75 temporarily bulges outward, but when the housing 61 is pulled out, it returns to its original shape and can be reassembled.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above, and various modifications can be made. For example, the locking protrusion 63a of the housing 61 may have an elastic shape. The number and arrangement of the terminal accommodating chambers 62 are not limited to the above, and can be freely changed as needed. An electric wire retainer may be formed on the lower surface of the cover 71.

[0019]

As described above, in the connector device according to the present invention, the guide groove is formed in the terminal accommodating chamber of the housing, and the bending portion for bending the electric wire into the pressure contact terminal accommodated in the terminal accommodating chamber is formed. And a plate-shaped protruding portion is provided from both the left and right ends of the bent portion toward the direction of drawing out the electric wire, that is, rearward, and the protruding portion is provided with a protrusion that engages with the guide groove. Therefore, even if an unnecessary force is applied to the bent portion due to the pulling of the wire or the like, it is possible to prevent the bent portion from being deformed by the projecting action of the protruding portion, and since the protrusion engages with the guide groove, Not only the parts but also the vertical deformation of the press contact terminal can be prevented in advance. As a result, the connector device can be easily handled at the time of manufacturing, workability is improved, and the yield of products is improved.

[Brief description of drawings]

FIG. 1 is a perspective view of essential parts showing a configuration of a connector device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a housing and a cover.

FIG. 3 is a cross-sectional view showing the assembling of the pressure contact terminal to the terminal accommodating chamber.

FIG. 4 is a cross-sectional view showing a connection state of electric wires during assembly.

FIG. 5 is a cross-sectional view showing an internal configuration when assembly is completed.

FIG. 6 is a perspective view showing an example of a conventional connector device.

FIG. 7 is a cross-sectional view showing an internal configuration of the connector device.

FIG. 8 is a sectional view showing a problem of a conventional connector device.

FIG. 9 is a cross-sectional view showing another problem of the conventional connector device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector device 51 Pressure contact terminal 52 Contact part 53 Pressure contact connection part 53a Vertical frame plate 53b Pressure contact blade 54 Insulation barrel 55 Bent part 56 Projection part 57 Projection 61 Housing 62 Terminal accommodating chamber 62b, 72a Insertion hole 63 Outer frame plate 63a Projection 64 Partition plate 65 Guide groove 66 Locking plate 71 Cover 72 Front plate 76 Locking port 77 Notch for guide W Electric wire

Claims (1)

[Claims] 1. A housing in which a guide groove is formed on an inner wall surface of a terminal accommodating chamber for accommodating a pressure contact terminal to which an electric wire is energized, and a bend for bending the electric wire on a side of the pressure contact terminal where the electric wire is drawn out. And a bent portion formed on both sides of the bent portion so as to extend along the pull-out direction of the electric wire to prevent the bent portion from falling and engaging with the guide groove formed on the outer surface of the protruding portion. And a pressure contact terminal provided with a protrusion for preventing bending deformation of the pressure contact terminal.