JP3365823B2 - Wire retention mechanism of insulation displacement 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 wire holding mechanism for a pressure contact connector having a multi-pole structure in which a plurality of wire terminals such as a wire harness are electrically connected by pressure contact terminals. The present invention relates to an electric wire holding mechanism for a pressure contact connector including a cover that can easily prevent slipping out and increase holding power.

[0002]

2. Description of the Related Art A conventional wire holding mechanism for a multi-pole pressure contact connector is described in Japanese Utility Model Laid-Open No. 64-56152. As shown in FIG. 13, a large number of contacts 41 are mounted in a plurality of rows in a contact housing 40 formed of an insulating material such as resin, and a terminal portion 42 is provided in a U-shape on the upper surface side of the contact housing 40. Has been done. The lower side of the contact 41 is bent in the contact housing 40 at a right angle to the terminal portion 42, and is provided as a connecting portion 43 in a connecting hole 44 inserted into the lower surface of the contact housing 40. And the terminal portion 4
2 are arranged in the longitudinal direction of the contact housing 40 at a distance twice the pitch of the strands of the flat cable attached thereto. Locking portions 46 are provided at both ends of the contact housing 40 in the longitudinal direction, and are configured to fix a first cable housing 47 described later.

The first cable housing 47 is attached to the upper surface of the contact housing 40, and the terminal portion 4
2 is a member for holding the contact housing 40
Are formed to have the same length and width, and the terminal portion 42 is inserted and held, and the width of the groove-shaped insertion hole 48 formed in the surface direction of the terminal portion 42 is set in two rows. It is provided up to an intermediate position, and the latter half is guided upward through the inclined portion 49. The insertion hole 48 is the terminal portion 4
2 is formed every other surface in accordance with the position of 2, and the same insertion hole 48 is provided in the other surface side.
The adjacent portion of each insertion hole 48 forms a convex projection 49.

A second cable housing 5 having a complete male-female relationship to the first cable housing 47.
In the flat cable placed on the first cable housing 47 by attaching 0 to the first cable housing 47, each wire has a one-to-one correspondence with the terminal portion 42. Was formed to be connected to.
As shown in FIG. 14, in the electric wire terminal, a connector cover 51 is attached to the upper portion of the press-connecting connector on which the second cable housing 50 is press-fitted, and the flat cable 45 is bent between the flat housing 45 and the contact housing 40. It was designed to be completely pinched.

[0005]

The above-mentioned conventional press-connecting connector is effective for connecting a flat cable having a small wire pitch, but this wire holding mechanism has a large capacity power wire having a large wire pitch and When the number of connected electric wires increases, the electric wires are bent by the male and female of the inclined surface,
There is a problem that a large force is required and the maintainability after pressure welding is poor. Further, when an external force is applied to the electric wire, stress concentrates on the electric wire portions arranged at both ends of the press-connecting connector, which may cause a fatal problem that the connection of the electric wires at both end portions is adversely affected. The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electric wire holding mechanism for a pressure contact connector which is not affected by external force and has excellent maintainability.

[0006]

SUMMARY OF THE INVENTION The above object of the present invention, pressure
A housing body having a wire holding portion formed in a convex shape on the wire insertion port side of a connector housing in which contact terminals are arranged in a plurality of rows , and a housing body housing for housing the housing body
The bar and the housing body cover are detachably provided
And the housing main body cover
A lid portion for covering the upper surface of the housing body housed in the bar,
And the lid is rotated in a closing direction to cause the electric wire to move.
Press the connection wire inserted from the insertion port from above to
Bends the electric wire in a crank shape in cooperation with the electric wire holder.
This can be achieved by an electric wire holding mechanism of a press-connecting connector, which is provided with a convex electric wire pressing portion .

Further, the above- mentioned object is the pressure welding according to claim 1.
In the electric wire holding mechanism of the connector, among the plurality of connecting electric wires in which at least one of the electric wire holding portion and the electric wire pressing portion is inserted from the electric wire insertion port, only the connecting electric wire arranged at both end sides of the housing body. It can be achieved by provided corresponding to.

[0008]

According to the wire holding mechanism of the pressure contact connector according to the present invention, the connecting wire is inserted from the wire insertion port side onto the pressure contact terminal projecting on the upper surface of the connector housing having the wire holding portion on the wire insertion port side. Then, press the connector wire from above to press-fit the connection wire into the press contact terminal, then house the connector housing in the housing body cover, and attach the lid part provided with the convex wire pressing portion to the housing body cover. By closing, the connecting electric wire is connected to the electric wire holding portion and the electric wire pressing portion .
Since it is bent into a crank shape in cooperation with the above, it is possible to reliably form a structure for preventing the connecting electric wire from coming off.

Further, since at least one of the electric wire holding portion and the electric wire pressing portion is provided corresponding to only the connecting electric wires routed to both end sides of the electric wire insertion port, especially both end sides of the connecting electric wire are strongly fixed. that since against an external force acting, the other connection wires for the both ends of the connection wire is subjected to external forces have a short of the influence of external forces.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described in detail below with reference to FIGS. 1 is a sectional view of an electric wire holding mechanism of a pressure contact connector according to a first embodiment of the present invention, FIG. 2 is a perspective view of a housing body, FIG. 3 is a perspective view showing a state in which a pressure contact terminal is attached to the housing body, FIG. Is a perspective view showing a state in which an electric wire is press-fitted into a press contact terminal, FIG. 5 is a perspective view of a housing main body cover, FIG. 6 is a perspective view showing a state where the housing main body cover is attached to the housing main body, and FIG. 7 is a lid of the housing main body cover. It is a perspective view showing the state where the part was made to adhere.

As shown in FIG. 1, the press-connecting connector 1 of this embodiment has a plurality of mounting holes 12 for mounting the press-connecting terminals 2.
A housing body 6 including a connector housing 3 provided with an electric wire supporting portion 5 provided with an electric wire holding portion 4 formed in a convex shape at the rear end (electric wire insertion port side) of the connector housing 3, and the housing main body. A housing body cover 7 for housing 6 and a detachable body body cover 7 ;
The housing body cover is rotatably mounted.
And a lid portion 8 that covers the upper surface of the housing body 6 housed in . In addition, a convex electric wire pressing portion 10 for pressing a connecting electric wire (hereinafter simply referred to as an electric wire) 9 is integrally provided on the electric wire supporting portion 5 on the back surface side of the lid portion 8.

The electric wire 9 is press-fitted into the predetermined press-connecting terminal 2 from the electric-wire supporting portion 5 through a wire-inserting port 11 opened in the upper portion of the electric-wire holding portion 4 by a wire-pressing jig (not shown). The housing body 6 pressed against the electric wire 9 is housed in the housing body cover 7, and the housing body cover 7
When the lid part 8 detachably attached to the electric wire 9 is rotated in the closing direction, the electric wire 9 is pressed and fixed onto the electric wire support part 5 by the tip of the electric wire pressing part 10 provided on the lid part 8. At this time,
The electric wire 9 is bent into a crank shape by the cooperation of the tip of the electric wire holding portion 4 and the tip of the electric wire pressing portion 10, and even if an external force acts in the direction of pulling it out from the housing body 6, the electric wire 9 is retained. It can be held securely.

As shown in FIG. 2, the housing body 6
Is divided into an upper row and a lower row, and is arranged in two rows in each of the upper and lower rows. Corresponding to every other wire mounting pitch, pressure contact terminal mounting is arranged so that the front row and the rear row are staggered. Connector housing 3 having a plurality of mounting holes 12 for use therein, and a rear portion of the lower surface of the connector housing 3 is integrally extended from the connector housing 3 and has a rear end that is convex upward. Wire holding part 4 formed on the
The electric wire support 5 is provided.

Each of the terminal mounting holes 12 is inserted from the upper surface side to the lower surface side of the connector housing 3, and its peripheral wall is covered with the wall surface of the connector housing 3 to form an independent insertion hole. Further, the electric wire holding portion 4 is erected in a right angle direction at a rear end portion through an electric wire supporting portion 5 having a surface extended from a lower stage of the connector housing 3, and a top surface thereof has a semicircular cross section. Has been formed. At the lateral ends of the electric wire holding portion 4 and the electric wire supporting portion 5, there is provided a barrier portion 13 for preventing the electric wire from deviating in the lateral direction. Further, a plurality of engagement protrusions 14 for mounting and fixing the housing body cover 7 are formed on the side wall surface of the housing body.

As shown in FIG. 3, the pressure contact terminal 2 is mounted in the mounting hole 12 from above. The tip of the U-shaped terminal, which is the upper portion of the pressure contact terminal 2, is provided so as to project from the upper surface of the connector housing 3. The pressure contact terminal portion 2 is not a special one, and is a metal member integrally provided on the lower side with a female contact portion 15 (see FIG. 1) for sandwiching the connection portion of the male connector.

As shown in FIG. 4, the electric wires 9 arranged over the electric wire holding portion 4 do not come into contact with the adjacent pressure contact terminals 2 and are always connected in a one-to-one correspondence with the electric wires 9. To be done. In the pressure contact terminals 2, the mounting pitch of the electric wires 9 is shifted between the front row and the rear row. Therefore, when the electric wires 9 connected to the front row side are linearly extended rearward, the pressure contact terminals 2 on the rear row side are separated from each other. It is routed through and is laid flat on the wire holding portion 4, and is fixed by a pressure welding jig (not shown) or the like.

As shown in FIG. 5, the housing body cover 7
Is for accommodating the housing body 6, and is provided with a side plate 16 that is in close contact with the side surface of the housing body 6 in a U-shape, and is provided with a lid portion 8 that can be detachably attached to the upper end portion on the other one surface side. There is. Lock holes 17 to be engaged with the engaging projections 14 provided on the housing body cover 7 are provided on the corresponding two surfaces of the side plate 16, and the engaging portion provided on the lid 8 is provided on the front side plate. An engagement hole 19 for locking 18 is formed.

The lid portion 8 is a flat plate-like member fitted inside the side plate 16 of the housing body cover 7, and pin-like members 20 are attached to the side plate 16 of the housing body cover 7 on both side surfaces of the rear end portion. A small hole (not shown) is provided for detachably and rotatably mounting via. Further, an engaging piece 18 is provided at the front center part of the lid portion 8, and the lid portion 8 is fixed to the housing body cover 7 in close contact by being pivotally attached to the housing body cover 7. . An electric wire pressing portion 10 is provided on the rear surface side of the lid portion 8 at a position corresponding to the electric wire supporting portion 5 of the housing body 6.
The electric wire pressing portion 10 is formed in a convex shape having a semicircular tip, and is continuously provided in the lateral direction of the lid portion 8.

As shown in FIG. 6, the housing body cover 7
When the housing body 6 with the electric wires 9 mounted therein is housed therein, the engagement protrusions 14 of the housing body 6 are locked in the lock holes 17 of the housing body cover 7, respectively, and the housing body 6 is fixed to the housing body cover 7. To be done. Next, the lid 8 is attached to the housing body cover 7 by the pin-shaped member 20.
7, and the engaging piece 18 of the lid 8 is locked in the engaging hole 19 of the housing main body cover 7 as shown in FIG. At this time, the electric wire pressing portion 10 presses the electric wire 9 onto the electric wire supporting portion 5 as shown in FIG. 1, and cooperates with the electric wire holding portion 4 to reliably prevent the electric wire 9 from coming off. The press-connecting connector 1 described above includes the electric wire 9
Can be held in the widthwise direction of the wire holding portion 4,
It is particularly effective for holding the flat cable used conventionally.

Next, a second embodiment of the present invention will be described with reference to FIGS.
0 will be described in detail. Figure 8 shows the housing body 6A
FIG. 9 is a perspective view of the housing main body cover 7, and FIG. 10 is a perspective view of the press contact connector 1A. The second embodiment is a holding mechanism which is effective when a plurality of single wires having the same diameter are connected by a pressure contact connector like a wire harness. As shown in FIG. 8, in the housing body 6A, the connector housing 3 in which a plurality of terminal mounting holes 12 for pressure contact terminals are formed is the same as that of the first embodiment, and is integrated with the connector housing 3 behind the lower surface. An electric wire support portion 5 is provided extending to the. At the rear end of the electric wire support portion 5, a plurality of electric wires inserted through the electric wire insertion port 11
Inside, only the wires routed to both ends of the housing body 6A
4A of convex electric wire holding | maintenance parts are provided in the both ends of the width direction of the electric wire support part 5 which becomes a position corresponding to .

As shown in FIG. 9, the housing body cover 7
A detachable and rotatable lid portion 8A is attached to the. An electric wire pressing portion 10A for pressing the electric wire 9 against the upper surface of the electric wire supporting portion 5 is provided on the back surface side of the lid portion 8A at a position facing the electric wire supporting portion 5 of the housing body 6A. The lid portion 8A is also detachably attached to the housing body cover 7 via the pin-shaped member 20,
It is rotatably opened and closed about the pin-shaped member 20 as a supporting shaft, and the engaging portion 18 and the housing body cover 7 provided on the lid portion 8A.
It is adapted to be adhered and fixed by the engaging hole 19 of.

As shown in FIG. 10, also in the wire holding mechanism of the pressure contact connector 1A having the above-described structure, the method of mounting the wire 9 is substantially the same as that of the first embodiment, and the terminal mounting hole 12 provided in the connector housing 3 is provided. The pressure contact terminal 2 is attached inside, and the electric wire 9 is pressure connected to the pressure contact terminal 2. At this time, only the two electric wires connected to both lateral ends of the connector housing 3 are passed over the electric wire holding portion 4A provided in the housing main body 6A, and then the housing main body 6A is housed in the housing main body cover 7.

Since the electric wires 9 placed on the electric wire holding portion 4A are respectively supported by the barrier portions 13A standing on both sides of the electric wire holding portion 4A, the electric wires 9 do not deviate from the electric wire holding portion 4A. It is housed in the housing body cover 7. Then, when the lid portion 8A is attached to the housing body cover 7 by the pin-shaped member 20 and then the lid portion 8A is rotated in the closing direction, only the electric wires 9 at both ends placed on the electric wire holding portion 4A are moved. The wire is pressed and fixed by the wire pressing portion 10A. As a result, the pressure-fixed electric wires 9 at both ends have a crank shape, which means that the electric wires 9 are arranged shorter than the electric wires arranged inside, and even if an external force acts in the pulling direction, the electric wires External force acts only on the two electric wires 9. As a result, the external force can be absorbed by the two crank-shaped electric wires, the external force does not act on the other electric wires arranged inside, and the held state can be reliably maintained.

FIG. 11 shows a lid portion 8 showing a third embodiment of the present invention.
FIG. 6B is a perspective view of the housing main body cover 7 on the back side of the lid portions 8 and 8A attached to the housing main body cover 7.
The protrusions 21 and 22 for press-fitting the press-connecting terminal 2 are formed at positions facing the mounting position of the press-connecting terminal 2 provided in A. The pressure contact projection 21 is for pressing the pressure contact terminal 2 provided on the upper stage of the connector housing 3, and the other pressure contact projection 22 is for pressing the pressure contact terminal 2 provided on the lower stage. The upper end surface is formed with a substantially semicircular concave surface, and the concave surface is configured to press-fit the press contact terminal 2 from above. By using the lid portion 8B as described above, the press-fitting work at the time of press-fitting, which is performed in the first and second embodiments, becomes easy, and press-fitting to the press-connecting terminal 2 and prevention of the electric wire from coming out are collectively performed. Since the pressure contact terminal 2 is always pressed after the lid is closed, it is possible to prevent the pressure contact portion from being loosened by an external force.

FIG. 12 shows the housing body cover 7 of the lid portion 8.
It is a modification of the locking mechanism to. In each of the locking mechanisms described above, as shown in FIG. 11, the locking hole 23 is provided on the lid portion 8 side, and the pin-shaped member 20 is inserted into the housing body cover 7 and the locking hole 23. However, in the present embodiment, the semicircular locking claw 24 is projectingly provided at the locking position of the lid portion 8, and the housing main body cover 7 has a step cutout for accommodating the height direction of the locking claw 24. If a portion is provided and a support shaft is provided at the center of the step cutout portion, the lid portion 8 can be easily attached to the housing body cover 7.

[0026]

As described above in detail, in the wire holding mechanism of the pressure contact connector according to the present invention, the housing body for mounting the pressure contact terminal is provided with the wire holding portion for holding the wire, and the housing for housing the housing body. An electric wire pressing portion that presses the electric wire from above by closing the lid portion on the cover portion of the main body cover, and the electric wire holding portion and the electric wire pressing portion cooperate to hold the electric wire in a crank shape. Thus, regardless of whether the cable is a flat cable or a power line, it is possible to reliably hold the connection of the electric wire with a small force, and it is possible to realize a pressure contact connector having excellent maintainability without being affected by external force.

[Brief description of drawings]

FIG. 1 is a sectional view of a press-connecting connector according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a housing body that constitutes the press-connecting connector of the first embodiment.

FIG. 3 is a perspective view in which a pressure contact terminal is attached to a housing body.

FIG. 4 is a perspective view showing a state in which electric wires are installed in a housing body.

FIG. 5 is a perspective view of a housing body cover that constitutes the press-connecting connector of the first embodiment.

FIG. 6 is a perspective view showing a state where the housing body is housed in a housing body cover.

FIG. 7 is a perspective view of the press-connecting connector showing a state in which the lid of the housing body cover is closed.

FIG. 8 is a perspective view of a housing body that constitutes a second embodiment of the present invention.

FIG. 9 is a perspective view of a housing body cover that constitutes a second embodiment of the present invention.

FIG. 10 is a perspective view showing a state where the housing body is housed in the housing body cover.

FIG. 11 is a perspective view of a lid portion that is a third embodiment of the present invention.

FIG. 12 is a partial perspective view of an essential part showing a modified example of the lid part according to the present invention.

FIG. 13 is an exploded perspective view showing a conventional pressure contact connector.

FIG. 14 is a perspective view showing a state after assembly of a conventional press-connecting connector.

[Explanation of symbols]

1 Pressure contact connector 2 Pressure contact terminal 3 connector housing 4 Wire holding part 6 housing body 7 Housing body cover 8 lid 9 connection wires 10 Electric wire pressing part 11 Wire insertion port 12 terminal mounting holes 13 Barrier 14 Engagement protrusion 15 contact points 16 side plate 17 Lock hole 18 Engagement part 19 Engagement hole 20 pin members 21,22 Pressure contact protrusion 23 Locking hole 24 Locking claw

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-58-216373 (JP, A) JP-A-62-58570 (JP, A) Actually open 61-35369 (JP, U) Actual-open flat 4- 136870 (JP, U) Actual development 60-170974 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01R 4/24 H01R 9/07

Claims (2)

(57) [Claims] 1. A wire holding portion formed in a convex shape on a wire insertion port side of a connector housing in which pressure contact terminals are arranged in a plurality of rows.
A housing body having, housing the housing body
Attach to the housing body cover and the housing body cover.
It is detachably provided and is rotatably formed.
Of the housing body stored in the housing body cover
A lid for covering the upper surface, and the lid is rotated in the closing direction so that
Holding the wire by pushing the inserted connection wire from above.
A convex electric wire that bends the electric wire in a crank shape in cooperation with the
An electric wire holding mechanism for a pressure contact connector, which is provided with a wire pressing portion . 2. Among the plurality of connecting electric wires in which at least one of the electric wire holding portion and the electric wire pressing portion is inserted from the electric wire insertion port, only the connecting electric wires routed to both ends of the housing body are supported. The electric wire holding mechanism for a press-connecting connector according to claim 1, wherein