JPH08306425A - Connector - Google Patents

Abstract

PURPOSE: To reliably prevent impact caused by mounting-demounting of a mating connector from being inputted to a wiring base board. CONSTITUTION: A connector is provided with pin-shaped terminals 11 and 12 whose base ends are fixed and connected to a wiring base board 4, a housing 13 to be installed on these by receiving the tips of the terminals 11 and 12 and a joining member 2 which engages with an inner wall surface of an opening 131 by being inserted into the housing 13 from an opening 131 arranged on an upper surface of the housing 13 and also simultaneously engages with the terminals 11 and 12 and joins both together by positioning the housing 13 to the terminals 11 and 12. The housing 13 is integrally formed on a cover panel 5 to be put and installed on an opening port of a casing to house the wiring base board 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a connector used for signal input / output to / from a wiring board.

[0002]

2. Description of the Related Art FIG. 9 shows an example of a connector 1'used for inputting / outputting a signal to / from a wiring board 4. In the figure, a connector 1'is a general-purpose horizontal type, and includes a resin housing 13 that opens forward (to the left in the figure) and a housing 1
3, a plurality of metal pin-shaped terminals 11, 1 protruding horizontally from the rear of the wiring board 3 and bent at a right angle toward the wiring board 4 below.
2 and the housing 13 and the terminals 11 and 12 are connected by integral molding. The end portions of the terminals 11 and 12 on the wiring board 4 side are the wiring board 4
Is inserted into a through hole (not shown) provided in
It is electrically connected to the wiring formed above by soldering.

The housing 13 has screws 6 attached to the wiring board 4.
The wiring board 4 fixed with the connector 1 ′ and thus provided with the connector 1 ′ is housed in the housing 3. The front panel 5 ′ of the housing 3 has an opening 52 matching the outer diameter of the housing 13.
Is provided, and the housing 13 is exposed to the outside of the panel 5 ′ when the front panel 5 ′ is attached to the opening of the housing 3 by the claw portions 53 on both side edges (only one is shown).

By the way, various electric parts other than the connector 1'are soldered and connected on the wiring board 4, and the lower surface side of the board 4 is dipped in a solder liquid in order to improve efficiency of this soldering. It is done by

[0005]

In the above structure, as described above, the housing 13 is fixed to the wiring board 4 by screws so that the housing 13 can be positioned with respect to the impact when the mating connector is attached and detached. However, according to this, since the impact load is directly input to the wiring substrate 4, there is a possibility that the substrate 4 may be deformed or solder may be damaged by fatigue. Further, since it is a general-purpose connector, its size is restricted, and the front panel 5'needs to be separately provided, which increases the cost.

Therefore, for example, as shown in FIG. 10, the housing 13 of the connector 1'is attached to the front panel 5 of the housing 3.
In some cases, the load input to the wiring board 4 is reduced by integrally molding the same with the front panel 5'and the housing 3 to receive the impact caused by the detachment of the connector. However, according to this structure, although the load on the wiring board 4 can be reduced, the front panel 5'is immersed in the solder bath.
Since the front panel 5'becomes in contact with the solder liquid at the lower end edge of the front panel, it is necessary to use a heat-resistant resin material such as NY66 / G30 that can sufficiently withstand the heat during immersion, which inevitably leads to an increase in cost. The price of plastic resin material is about three times higher than that of ordinary resin material such as PP). Although it is possible to attach the connector separately afterwards by hand soldering, this increases the number of steps.

The present invention is intended to solve the above problems. A first object of the present invention is to improve the efficiency of soldering to a wiring board without incurring an increase in cost associated with the improvement of the material of the connector housing and the like. To provide a possible connector. A second object of the present invention is to provide a connector capable of reliably preventing the impact caused by the attachment / detachment of the mating connector from being input to the wiring board.

[0008]

In order to achieve the above-mentioned object, the present invention provides a connector (1) in the form of a pin whose base end is fixedly connected to a wiring board (4). Terminals (11, 12), a housing (13) that receives the tip of the terminal and is attached to the terminal, and an opening (131) provided on the side surface of the housing, and is inserted into the housing. It has a coupling member (2) which engages with the terminal at the same time as it engages and positions the housing with respect to the terminal and couples them.

According to the second aspect of the present invention, the terminals (11, 12) vertically rise from the wiring board along the front inner peripheral surface of the opening (131) and then horizontally bend forward. The connecting member (2) abuts against and is engaged with the back of the upright portion of the terminal. In the invention according to claim 3, locking projections (111, 112) protruding laterally are formed at front and rear positions in the longitudinal direction of the terminals (11, 12), and the housing is provided from the opening (131). The front and rear side surfaces of the coupling member (2) inserted into the (13) engage with the locking projections.

According to the fourth aspect of the present invention, the housing (13) is integrally formed with the mounting member (5) to the housing (3) which houses the wiring board (4). In the invention according to claim 5, the mounting member is a cover panel (5) attached to the opening of the housing (3) that houses the wiring board (4). The reference numerals in parentheses of the above-mentioned means indicate the correspondence with the concrete means described in the embodiments described later.

[0011]

According to the first aspect of the present invention, the housing is not positioned with respect to the terminal and the two are separable from each other until the coupling member is inserted into the opening of the housing. Therefore, it is possible to efficiently perform the fixed connection work by immersing only the terminal together with other electric components connected to the wiring board in the solder liquid.

A housing is attached to the terminal whose base end is fixedly connected to the wiring board, and then a coupling member is inserted into the housing through an opening on a side surface of the housing to position the housing at the terminal and couple the two. . As described above, according to the present invention, since the terminal and the housing can be separated from each other during the fixed connection work, it is not necessary to use a material having high heat resistance for the housing, and the cost increase due to the improvement of the housing material can be avoided.

According to the second aspect of the present invention, the vertical portion of the so-called self-supporting horizontal terminal is sandwiched between the connecting member and the inner wall surface of the opening, so that the terminal and the housing are securely connected. It According to the invention of claim 3, the coupling member engages with the locking projection of the terminal,
The terminal and housing are surely connected.

According to the invention as set forth in claim 4, since the housing is attached to the casing by the attaching member, the shock input to the terminal due to the attachment / detachment of the mating connector is received by the casing via the attaching member. , Is not transmitted to the wiring board. According to the invention of claim 5, the cover panel can also serve as the attachment member.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an electronic device such as a vehicle door lock / unlock control device will be described below. (First Embodiment) FIG. 1 is an overall horizontal sectional view of an electronic device having a connector of the present invention. In the figure, the rectangular device housing 3 is made of resin and is open forward (to the left in the figure).
The wiring board 4 is accommodated in the housing 3 in a horizontal posture with both side edges (upper and lower side edges in the drawing) held by grooves 31 formed on the inner peripheral surface thereof. On this wiring board 4, the relay 4
1, electronic parts such as a register 42, a capacitor 43, and an IC 44 are mounted.

The opening of the housing 3 is closed by a cover panel 5, and the housing 13 of the connector 1 is integrally formed on the plate surface of the cover panel 5. The housing 13 has a tubular shape with a rectangular cross section and projects from the surface of the cover panel 5. Inside the housing 13, a partition wall 14 is formed on the same line as the cover panel 5. The housing projects beyond the partition wall into the rear housing 3, and the projection 132
An opening 131 having a rectangular cross section is vertically formed between the partition wall 14 and the partition wall 14.

Penetrating the protrusion 132 and the partition wall 14,
A plurality of terminals 11 and 12 extend in parallel in the cylinder of the housing 13. As shown in FIG. 2, each of the terminals 11 and 12 is a long plate having a constant width, and is provided at two positions, an upper position and a lower position, and through-holes 141 and 14 each having a tip provided in the partition wall 14.
It is located inside the cylinder of the housing 13 by passing through 2 horizontally, and each base end is bent downward at a right angle to reach the wiring board 4 and penetrates it.

The lower terminal 12 stands up in the opening 131, is horizontally bent forward along the stepped portion 143 on the inner circumference of the opening, and is inserted into the through hole 142. On the other hand, the upper terminal 11 has a protrusion 132.
Stand up behind and bend horizontally to the front,
3 crosses the opening 131, and is further inserted into the through hole 141. In the opening 131, the opening 1
A coupling member 2 having a shape substantially along the inner circumference of the 31 is inserted, and by this coupling member 2, the terminals 11,
12 is positioned in the housing 13.

The partition wall 14 is continuous with the cover panel 5 in the vertical position (FIG. 2), and the front edge of the wiring board 4 is mounted in the groove 51 formed on the back surface of the lower edge of the cover panel 5. There is. Hereinafter, the structure of the connector 1 of the present invention will be described in detail while explaining the procedure for assembling the connector.

As shown in FIGS. 3 and 4, the wiring board 4 is provided with circular terminal insertion holes (not shown) at the front edge (the left edge in the figure) in the same number as the terminals 11 and 12. , The lower four terminals 1 (only two are shown in FIG. 3) in the four terminal insertion holes in the front row
Two proximal ends are inserted and caulked and fixed by a known method. Further, the base ends of the upper two terminals 11 are inserted and fixed to the terminal insertion holes provided at two positions on the left and right (upper and lower sides in the drawing) behind the terminal insertion hole.

As described above, each of the terminals 11 and 12 is bent into an L-shape in a side view (FIG. 4), and the upper terminal 1
1, locking projections 111 and 112 are formed at two locations on the front and rear sides of both sides of a horizontal portion near the corner. These terminals 11 and 12 are fixed to the wiring board 4 by caulking, are immersed in a solder solution together with other electric components (not shown), and are collectively soldered, and are electrically connected to the wiring (not shown) on the wiring board 4. .

When the housing 13 is pushed in from the horizontal front as shown in FIGS. 5 and 6 with respect to the terminals 11 and 12 fixedly connected to the wiring board 4 by soldering, the tips of the horizontal portions of the terminals 11 and 12 are pushed. Is inserted into the housing 13 through the through holes 133, 141, 142 (see FIG. 2) of the housing 13, and the housing 13 is connected to the terminal 1
It is attached to 1 and 12. At the same time, the front edge 47 of the wiring board 4 is fitted into the groove 51 at the lower edge of the cover panel 5.

Then, the coupling member 2 is inserted into the opening 131 of the housing 13 mounted on the terminals 11 and 12 as shown in the drawing. Details of the coupling member 2 are shown in FIGS. 7 and 8, FIG. 7 is a plan view of the coupling member 2 seen from above, and FIG. 8 is a front view thereof. The side view is shown in FIG.
It is shown in FIG. The coupling member 2 is a thick plate having a substantially rectangular cross section (FIG. 7) along the cross-sectional shape of the opening 131 (FIG. 1), and the front surface of the lower half portion 21 (left side of FIG. 2) is inside the opening 131. It is recessed in a shape along the stepped portion 143 of the circumference, and is thin in this portion. A rectangular notch 22 extending from the lower edge to the upper end is formed on the plate surface of the coupling member 2 at the left and right positions. The position of the notch 22 corresponds to the installation position of the upper terminal 11 (FIG. 1), and The width of the notch 22 is made equal to the plate width of the terminal 11.

When such a coupling member 2 is inserted into the housing 13 through the opening 131, the front and rear side surfaces of the coupling member 2 come into contact with the front and rear inner peripheral surfaces of the opening 131, as shown in FIG. In the embodiment, the left and right side surfaces (the front side and the other side in the figure) of the coupling member 2 are in contact with the left and right inner peripheral surfaces of the opening 131. The front and rear side surfaces of the coupling member 2 are formed on the horizontal portion of the upper terminal 11 when the front and rear locking projections 1 are inserted.
It also abuts 11, 112, whereby the housing 13 is positioned with respect to the terminal 11, and the two are joined.

The front surface of the lower half portion 21 of the connecting member 2 is located in contact with the rear surface of the lower terminal 12, and the lower half portion 2 is
1 and the partition wall 14 are brought into contact with the terminal 12 from the front and back to position the housing 13, and the two are joined. The cover panel 5 integrated with the housing 13 has upper and lower ends in FIG. 2 fixedly attached to upper and lower opening edges of the housing 3. The locking projections 23 provided at the left and right positions on the rear surface of the coupling member 2
As shown in FIG. 2, when the coupling member 2 is inserted into the opening 131 (FIG. 7), the coupling member 2 is prevented from coming off by engaging with the lower peripheral edge of the opening 131.

In this state, even if the mating connector is detached from the left side of FIG. 2 with respect to the housing 13 and the impact at this time is applied to the terminals 11 and 12, the impact load is covered via the coupling member 2. It is transmitted to the panel 5 and received by the entire housing 3. Therefore, the impact does not directly act on the wiring board 4, and the damage or the like is prevented.

[Brief description of drawings]

FIG. 1 is an overall horizontal sectional view of an electronic device having a connector according to an exemplary embodiment of the present invention.

2 is a vertical cross-sectional view of a cover panel integrally formed with a housing according to an embodiment of the present invention, the cross-sectional portion being II of FIG.
-It is along the II line.

FIG. 3 is a plan view of a wiring board before mounting a housing according to an embodiment of the present invention.

FIG. 4 is a side view of the wiring board before mounting the housing according to the embodiment of the present invention.

FIG. 5 is an exploded plan view of the entire housing when the housing according to the embodiment of the present invention is mounted.

FIG. 6 is an exploded side view of the entire housing when the housing according to the embodiment of the present invention is mounted.

FIG. 7 is an overall plan view of a coupling member according to an embodiment of the present invention as seen from above.

FIG. 8 is an overall front view of a connecting member according to an embodiment of the present invention.

FIG. 9 is an exploded perspective view of an electronic device having a conventional connector.

FIG. 10 is an exploded perspective view of an electronic device having a conventional connector.

[Explanation of symbols]

1 ... Connector, 11, 12 ... Terminal, 111, 11
2 ... Locking protrusion, 13 ... Housing, 131 ... Opening, 2 ...
Coupling members, 3 ... Casing, 4 ... Wiring board, 5 ... Cover panel.

Front Page Continuation (72) Inventor Hiroshi Koyama, 3 Iyama, Shinomemachi, Anjo City, Aichi Prefecture, Anden Co., Ltd. (72) Inventor, Koichi Tsukada, 3 Iyama, Shinome Town, Anjo City, Aichi Prefecture, (72) Inventor Yoshio Kondo 3 Iyama, Shinome-cho, Anjo-shi, Aichi Anden Co., Ltd.

Claims (5)

[Claims] 1. A pin-shaped terminal whose base end is fixedly connected to a wiring board, a housing which receives the tip of this terminal and is attached thereto, and a pin-shaped terminal which is inserted into the housing through an opening provided on a side surface of the housing. A connector, comprising: a coupling member that engages with an inner peripheral surface of the opening and simultaneously engages with the terminal to position the housing with respect to the terminal and couple the both. 2. The terminal vertically rises from the wiring board along the inner peripheral surface of the front side of the opening and then horizontally bends forward, and the coupling member abuts on the rear of the upright portion of the terminal. The connector according to claim 1, wherein the connector engages with the lever. 3. A locking projection protruding laterally is formed at a longitudinal position of the terminal in a longitudinal direction, and front and rear side surfaces of a coupling member inserted into the housing through the opening engages with the locking projection. The connector according to claim 1 or 2, wherein the connector is fitted. 4. The connector according to claim 1, wherein the housing is integrally formed with a mounting member for mounting on a housing that houses the wiring board. 5. The connector according to claim 4, wherein the attachment member is a cover panel that is attached to an opening of a housing that houses the wiring board.