JP2592639Y2 - ID connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-connecting connector, and more particularly, to a press-connecting connector provided with a cover having a function of fixing a wire and a function of locking a terminal. It is suitably used for a press-connecting connector having a housing chamber for housing a terminal.

[0002]

2. Description of the Related Art Conventionally, in a crimping connector for accommodating and holding crimping terminals connected to a large number of electric wires such as an automobile wire harness, the crimping terminals are inserted into a large number of terminal accommodating chambers juxtaposed in a housing. After locking and holding the pressure contact terminal with the terminal locking portion formed in the accommodation room, a cover is attached to the housing to close the opening in the accommodation room, and the cover usually has only an insulating function. It has no wire fixing function.

[0003] Therefore, when the holding force of the electric wire is weak and a tensile force acts on the electric wire, the terminal connected to the electric wire moves in the terminal accommodating chamber to cause a contact failure, and the terminal may come off together with the electric wire. There is also a disadvantage that damage is likely to occur due to repeated attachment and detachment of the male and female connectors.

In order to solve the above-mentioned disadvantage, as shown in FIG. 7, a projection 2a projecting downward is provided at the rear end of a cover 2 which closes an opening at the rear upper surface of a housing 1 of a press-connecting connector. There is provided one in which an electric wire 5 attached to a press contact terminal 3 housed in a terminal accommodating chamber 1a is bent and fixed by the projection 2a.

[0005] Further, as shown in FIG. 8, in a type in which a press contact blade 3 a ′ of a press contact terminal 3 ′ accommodated in a terminal accommodating chamber 1 a ′ of a connector housing 1 ′ is perpendicular to a connector fitting surface, In some cases, the electric wire 5 attached to the terminal 3 'is bent and fixed by the side walls 2b' of the cover 2 '.

[0006]

However, in the connector shown in FIG. 7, when a tensile force acts on the electric wire 5 as shown by an arrow in the drawing, the cover 2 is applied to the bent portion 5a of the electric wire 5.
A force indicated by an arrow acting to remove is applied, and the cover 2 is deformed and detached. Therefore, there was a defect that the electric wire 5 could not be securely fixed by the cover 2. Similarly, in the connector shown in FIG. 8, a force for detaching the cover 2 ′ is exerted by the tensile force acting on the electric wire 5, the deformation and detachment of the cover 2 ′ occurs, and the electric wire can be securely fixed. Absent.

[0007] In any of the above connectors,
In either case, the pressure contact terminals accommodated in the terminal accommodating chamber are held only by the locking portions 1b and 1b 'formed on the wall surface of the terminal accommodating chamber. there were.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a press-connecting connector provided with a cover having a sufficient wire fixing function and a press-connecting terminal locking function.

[0009]

That is, according to the present invention, terminal housings are juxtaposed via a partition wall in a housing of a press-connecting connector, and the upper surfaces of the terminal housings are cut off from the upper wall of the housing to form openings on the upper surface. A terminal locking portion protruding from the front edge of the opening toward the upper surface of the opening; and a cover insertion hole provided in a front portion of the upper wall of the housing. A cover having a flat plate portion for closing the upper opening of the storage chamber and a projection protruding downward at a position corresponding to each terminal storage chamber at the rear end of the flat plate portion is provided. It is located rearward from the rear end of the lower surface of the terminal accommodating chamber so that the wire is clamped in the front-rear direction, and the front end surface of the projection serves as a retaining surface for the pressure contact terminal, and locks the pressure contact terminal accommodated in the terminal accommodating chamber. Configuration There is provided a pressure contact connector according to claim.

In the above housing, the central partition wall is set lower than the left and right outer walls by the thickness of the cover flat plate portion.
Also, a cover locking projection is provided on the rear end upper surface of the partition wall,
The cover is locked with a locking groove formed in the rear end face of the flat plate portion. Therefore, the front portion of the cover is held inside the cover insertion hole, and the rear portion is positioned and held by the locking projection.

The cover insertion hole may be penetrated to the front end surface of the housing, and the cover flat portion may extend to the front end of the housing. Alternatively, the cover insertion hole may be a closed hole opened only at the rear end surface of the cover insertion side. The front end of the cover plate may be fitted to the cover. The front edge of the cover flat portion is chamfered to form a round shape so that the cover can be smoothly inserted into the cover insertion hole and no damage occurs at the time of contact.

Each of the protrusions provided on the cover has a front part vertically projecting from the bottom surface of the flat plate part, a tapered part inclined backward and downward from the front part, a rear part extended horizontally from the lower end of the tapered part, and a rear part. And a wire guide portion provided at the rear end of the portion, and the front end surface of the front portion serves as a locking surface of the press contact terminal,
The tapered portion serves as a wire bending portion, and the front edge of the rear portion is located at a predetermined distance behind the rear edge of the lower surface of the terminal accommodating chamber, and the wire is clamped therebetween in the front-rear direction.

[0013]

In the press-connecting connector of the present invention having the above structure,
The electric wire connected to and attached to the pressure contact terminal in each terminal accommodating chamber is sandwiched in the front-rear direction between the rear end edge of the lower surface of the terminal accommodating chamber and the lower end edge of the projection of the cover, and thus the electric wire mainly acting in the front-rear direction. Has an inhibitory effect on the tensile force of

[0014] Further, the press-contact terminal inserted into each terminal accommodating chamber is locked by a terminal locking portion provided in the terminal accommodating chamber.
The double locking of the front end face of the cover is performed, so that the terminal is securely locked at a predetermined position in the terminal accommodating chamber to prevent rattling of the terminal and poor contact in the terminal accommodating chamber. Further, the terminal can be reliably prevented from coming off.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in FIGS. In the drawing, reference numeral 10 denotes a housing, and 11 denotes a cover. After the press-contact terminal 13 connected to the electric wire W is accommodated in the terminal accommodating chamber 12 of the housing 10, the cover 1
1 is mounted on the upper surface of the housing 10.

A plurality of terminal accommodating chambers 12 are arranged in the housing 10 with a partition wall 14 interposed therebetween. The upper wall 15 of the housing is cut away from the rear end to the front, and each terminal accommodating chamber 12 is cut off. The opening 16 is formed on the upper surface of the substrate. Therefore, the center partition wall 14 is lower than the left and right outer walls 17 by the thickness of the upper wall 15.

In the front part of the housing 10, a cover insertion hole 18 is formed in the lower part of the upper wall 15 at the rear end opening. In this embodiment, the cover insertion hole 18 is a closed hole without penetrating to the front end of the housing, but may be formed to the front end as shown in a modified example of FIG. At the lower part of the cover insertion hole 18, a hollow portion 19 forming the front part of the terminal accommodating chamber 12 is formed, and the electrical contact portion 13 a of the press contact terminal 13 is inserted into the hollow portion 19.

The lower surface of the cover insertion hole 18 and the cavity 19
At the front end of the partitioning portion 20 that forms the upper surface of the terminal housing 12, a terminal locking portion 21 protruding from the upper surface opening 16 of each terminal accommodating chamber 12 is provided. These terminal locking portions 21 have locking claw portions 21a protruding downward at the rear portion of the flat plate portion, and the locking claw portions 21a are locked to the shoulder rear end 13b of the electric contact portion 13a of the press contact terminal. I have to. The rear end 21b of the terminal locking portion 21 is chamfered to form a round shape.

The rear end of the lower surface 22 of each terminal accommodating chamber 12 is set so as to be located forward of the rear ends of the left and right outer walls 17 and the partition wall 14, and the rear edge 22a is chamfered to form a round shape. Further, a cover locking projection 23 is provided on the upper surface of the rear end of the partition wall 1.

The cover 11 has a plurality of projections 26 formed on the lower surface of the rear end of a flat plate 25 having a thickness equal to the thickness of the housing upper wall 15. It is set so that it is located at the rear end opening, and the lower end of the projection is located rearward from the rear end of the lower surface of the terminal accommodating chamber at a predetermined interval L.

The front end of the flat plate portion 25 is inserted into the cover insertion hole 18 of the housing.
Has a chamfered round shape. A locking groove 26 is provided at the rear end of the flat plate portion 25, and the locking projection 2 of the housing 10 is provided.
3 is locked. When the cover 11 is assembled to the housing 11 by inserting the front portion of the flat plate portion 25 into the cover insertion hole 18 and locking the locking groove 28 at the rear end with the projection 23, the left and right end surfaces 25 b of the flat plate portion 25 are assembled. Are in contact with the inner surfaces of the left and right outer walls 17, cover the cutout portions of the housing upper wall 15, and
, And acts to push down the terminal locking portion 21.

The protrusion 26 has a front portion 26a projecting vertically from the flat plate portion 25, a tapered portion 26b inclined rearward from the front portion 26a, and horizontally extending rearward from a lower end of the tapered portion 26b. It comprises a rear part 26c and an electric wire guide part 26d connected to the upper surface of the rear end of the rear part 26c.

As shown in FIG. 3, the front end face of the front stage 26a of the projection 26 has a wire crimping portion 1 of the press contact terminal 13 at the time of assembly.
3c is set so as to be locked to the rear end shoulder 13d, and the front end surface is configured as a terminal locking surface 27. Rear part 26c
As shown in FIG. 3, the front edge 26e is set to be located rearward at a predetermined distance L from the rear end 22a of the lower surface of the terminal accommodating chamber and to be located on the same horizontal plane. The interval L is the electric wire W
Is a dimension that can be clamped.

As described above, the press contact terminals 13 accommodated in the terminal accommodating chambers 12 by being connected to the electric wires W have the electric contact portions 13a at the front and the press contact blades (not shown) at the intermediate portions. The wire crimping portion 13c and the wire holding portion 13e at the rear end are formed integrally with each other by protruding from the substrate portion 13f. The electric wire W is mounted in the terminal accommodating chamber 12 in a state where the electric wire W is connected to the press contact terminal 13 in advance.

Next, a method of assembling the press-connecting connector will be described. Each terminal accommodating chamber 12 of the housing 10
The press contact terminals 13 to which the electric wires W are respectively connected are inserted from the rear end openings. At this time, the electric contact portion 13a at the front portion of the press contact terminal 13 is inserted by pushing up the terminal locking portion 21, and when inserted to a predetermined position, the rear end 13b of the electric contact portion 13a is inserted.
Are locked by the claw portions 21a of the terminal locking portions.

Next, the cover 1 is placed on the upper surface of the housing 10.
1 is inserted into the cover insertion hole 18 at the front of the flat plate portion 25,
The rear end locking groove 28 is locked to the projection 23 of the housing 10 and attached.

In the above-mentioned connected state, the upper opening 16 of the terminal accommodating chamber 12 is closed by the flat plate portion 25 of the cover 11 and the terminal engaging surface 2 at the front end of the projection 26 of the cover.
7 engages with the rear end 13d of the wire crimping portion of the press contact terminal 13. Therefore, the pressure contact terminal 13 accommodated in the terminal accommodation chamber 12
Is doubly locked on both front and rear sides.

The electric wire W crimped to the press contact terminal 13
Are bent along the tapered portion 26b of the projection 26, and are fixed in a state of being sandwiched between the rear end 22a of the lower surface of the terminal accommodating chamber 12 and the front edge 26e of the rear step 26c of the terminal.
6 is drawn out from the guide hole of the electric wire guide 26d.

[0029]

As is apparent from the above description, in the press-connecting connector according to the present invention, the cover can have both the wire fixing function and the terminal locking function. In the above-mentioned electric wire fixing function, since the electric wire is clamped from the front and rear directions where a tensile force acts, the holding force is greater than when the electric wire is simply clamped from the vertical direction. Further, in the terminal locking function, double locking can be performed by the terminal locking portion provided on the wall surface of the terminal accommodating chamber, so that the crimping terminal can be prevented from moving or coming off by the pulling force acting on the electric wire. , Contact stability can be ensured.

Further, since the cover is securely locked to the front and rear sides with respect to the housing, the connecting force is large, and by assembling with this strong connection, the electric wire can be bent reliably and easily by the cover, The above-described holding of the bent electric wire is reliably performed. Also, since the cover is slidably connected to the housing, the assembling work is easy. In addition, in the assembling, since the sliding contact surfaces between the housing and the cover are provided with each other, there is no possibility of damage at the time of assembling. Can be prevented.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of components of a press-connecting connector according to the present invention.

FIG. 2 is an enlarged perspective view showing a projection of a cover of the component.

FIG. 3 is a cross-sectional view of a press-connecting connector completed by assembling the above components.

FIG. 4 is a partial sectional view of a housing of the component.

FIG. 5 is a partial sectional view of a cover of the component.

FIG. 6 is a partial sectional view showing a modification of the present invention.

FIG. 7 is a schematic sectional view of a press-connecting connector showing a conventional example.

FIG. 8 is a schematic sectional view of a press-connecting connector showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Housing 11 Cover 12 Terminal accommodating chamber 13 Pressure contact terminal 14 Partition wall 16 Opening 18 Cover insertion hole 21 Terminal locking part 22 Projection 25 Flat part 26 Projection 27 Terminal locking surface W Electric wire

Claims (1)

(57) [Scope of request for utility model registration] A terminal housing (12) having an upper surface opening is arranged in a housing (10) of a press-connecting connector, a terminal engaging portion (21) protruding from the front edge of the opening to the upper surface of the opening is provided, and an upper wall of the housing is provided. A flat plate portion (25) for inserting a front portion into the cover insertion hole (18) of the housing (10) and closing the upper opening of the terminal accommodating chamber (12) while providing a cover insertion hole (18) in the front portion of the housing (10). And a projection (26) projecting downward at a position corresponding to each terminal accommodating chamber at the rear end of the flat plate portion (25).
A cover (11) provided with the projections (26);
The front part (26a) protruding from the flat part (25), the tapered part (26b) inclined backward from the front part (26a), and horizontally extending rearward from the lower end of the tapered part (26b). Rear part (26c), the rear part (26c)
And a wire guide portion (26d) continuous with the rear end surface, and the tapered portion (26b) has a terminal accommodating chamber (1).
The wire is sandwiched from the front-rear direction at a position rearward from the rear end surface of the lower surface of 2), and the wire held in the front-rear direction is drawn out in the front-rear direction through the wire guide portion (26d). 26. A press-connecting connector characterized in that the front end face of the front section (26a) of (26) serves as a locking face (27) that double-locks at the rear end face of the press-connecting terminal (13) pressed against the electric wire. .