JP3349470B2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an electrical connector such as an actuator unit for ABS.

[0002]

2. Description of the Related Art An actuator unit for an ABS (antilock brake system) generally includes an integral insulating housing on which an actuator such as a solenoid valve and a control circuit board for controlling the actuator are mounted. And a plurality of power and signal contacts that are attached to one side of the insulating housing and connected to the circuit board. Here, the control circuit board is attached to the insulating housing by screwing or snap-fitting to an elastic mounting portion formed on the insulating housing. Further, the contact and the circuit board are attached by forming a plurality of through holes in the circuit board, inserting the through-holes of the contacts into the through-holes, and connecting them with solder. The insulating housing is integrally formed by molding a resin material.

[0003]

In the above-described ABS actuator unit, when the housing is formed by molding, the housing cannot be formed to an appropriate size due to the molding conditions and the shape of the housing. is there. In particular, one side of the housing in which a plurality of contacts are mounted in a row protrudes from a main body on which a circuit board occupying most of the housing is mounted, and the one side and the main body are connected by a thin connecting portion. In this case, the one side may fall with respect to the main body. In this case, when the circuit board is mounted on the housing, the through holes formed in the circuit board do not align with the board connection portions of the contacts, the board connection portions do not enter the through holes, and the circuit board is mounted on the housing. Could not be implemented.

It is therefore an object of the present invention, even when the insulating housing can not be formed on the thus suitable shape for molding, a through hole formed on the circuit board properly for contacts provided on the insulated housing Positioning,
An object of the present invention is to provide an electrical connector such as an ABS actuator unit that can reliably mount a circuit board on a housing.

[0005]

Electrical connector according to the present invention, in order to solve the problems] includes an insulating housing in which the circuit board is mounted, mounted in the insulating housing, to the scan <br/> Le chromatography hole formed on the circuit board A contact having a board connecting portion to be connected; and an elastic mounting portion provided on the insulating housing and mounted on the mounting hole formed on the circuit board to mount the circuit board on the insulating housing .
In the electrical connector, the insulating housing includes a main body.
And projecting from one side of the main body through a connecting portion
Both have a connector part to which the contact is attached.
The elastic mounting portion is disposed at the center through a slit.
And a pair of elastically deformable portions, wherein the circuit board is
The mounting hole into which the pair of elastically deformable portions is mounted is connected to the circuit.
The pair of elastically deforming portions are provided inside the outer edge of the substrate.
Incline so that it gradually widens from the end to the bottom
An inclined outer surface, and the circuit board formed at a lower end of the inclined outer surface.
And a pair of elastic portions each having a shoulder portion for retaining the pair of elastic members.
One of the connector portion of the deformable portion, when mounting the circuit board in the insulating housing, to position the through hole by moving the position of the pre-SL through hole for the previous SL board connecting portion the positioning portion that act,
It is characterized by being provided by a buildup on the inclined outer surface .

[0006]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the electrical connector of the present invention. FIG. 2 is a bottom view of the electrical connector of FIG.
FIG. 3 is a front view of the electrical connector of FIG. FIG.
FIG. 4 is a cross-sectional view of the electrical connector of FIG. 1 along line 4-4.
FIG. 5 is a schematic partial enlarged view of an elastic attachment portion and a circuit board attached to the elastic attachment portion.

[0007] In FIG. 1 to FIG.
Is an insulating housing 10 on which the circuit board 30 is mounted;
It mounted in rows on one side of the insulating housing 10, and a plurality of contacts 20 connected to the thru-hole 32 formed in the circuit board 30. Contact 20
A plurality of power contacts 21 formed wide,
It is composed of a plurality of signal contacts 22 formed in a narrow width, and each of the contacts 21 and 22 is a tab-shaped contact in the form of a flat plate, and the contact portions 21a and 22a which contact the contacts of a mating connector (not shown) and A board connecting portion 21b soldered to the through hole 32 of the circuit board 30;
22b.

Here, the housing 10 is formed by molding an insulating resin such as PBT, for example, and has a substantially rectangular parallelepiped main body 11 on which a circuit board 30 and an actuator (not shown) are mounted. A substantially rectangular parallelepiped connector portion 1 protruding from one side (the right side in FIG. 3) via the connecting portion 13 and having a plurality of contacts 20 attached thereto.
2 is provided. The connecting portion 13 is formed to be thinner in the up-down direction (up-down direction in FIG. 3) than the main body 11. A mating connector receiving recess 14 for receiving a mating connector is formed below the connector portion 12, and the contact portions 21 a and 22 a of the contacts 21 and 22 are located in the mating connector receiving recess 14. The board connecting portions 21b and 22b of the contacts 21 and 22 are located on the sides.

The main body 11 of the housing 10 is configured such that the circuit board 30 is mounted on the upper surface and a plurality of actuators are mounted on the lower surface. Lower surface 1 of main body 11
5, a plurality of actuator mounting recesses 16 for mounting these actuators are formed.

On the other hand, on the upper surface 17 of the main body 11, a plurality of (four in the present embodiment) mounting the circuit board 30 on the insulating housing 10 by being mounted in mounting holes 31 formed in the circuit board 30. The elastic mounting portion 18 is formed to protrude. The elastic mounting portion 18 includes a pair of elastically deforming portions 18a, 1a that are biased along a direction orthogonal to the row of the contacts 20 when the elastic mounting portion 18 is mounted in the mounting hole 31 of the circuit board 30.
8b. As shown in FIG. 5, the elastically deforming portions 18a and 18b are substantially semi-cylindrical members arranged at the center through slits 18f, and are inclined so that the diameter gradually increases from the upper end toward the lower side. It has an outer surface 18d. The elastically deforming portions 18a and 18b bend inward when they are inserted into the mounting holes 31 of the circuit board 30, and return to the original state when the circuit board 30 is mounted and return to the inclined outer surface 18a.
The shoulder 18e formed at the lower end of d engages with the upper surface of the circuit board 30 to prevent the circuit board 30 from coming off. or,
As best shown in FIG. 5, a pair of elastically deforming portions 18a,
Among the elastic deformation portions 18b on the contact 20 side among the 18b,
When the circuit board 30 is mounted on the insulating housing 10, the position of the through hole 32 of the circuit board 30 is
Side (the arrow A side in FIGS. 2 and 5) to make the through hole 32 into the power and signal contacts 21, 22.
A positioning portion 18c for positioning with respect to the substrate connection portions 21b and 22b is provided. This positioning part 18c
It is formed by forming a padding projecting toward the contact 20 on the inclined outer surface 18d of the elastic deformation portion 18b having a symmetrical shape with the elastic deformation portion 18a. For this reason, when molding the housing 10, the connector portion 12 falls down with respect to the main body portion 11, and the board mounting portion 21
Even if b and 22b move farther from the elastic mounting portion 18, the position of the through hole 32 of the circuit board 30 is moved toward the contact 20 by the positioning portion 18c, and the through hole 32 is The circuit board 3 is positioned with respect to the portions 21b and 22b.
At the time of mounting 0, the board connecting portions 21b and 22b are smoothly inserted into the through holes 32, and the mounting of the circuit board 30 to the housing 10 can be performed reliably. Further, since the positioning portion 18c is formed by building up only on the inclined outer surface 18d of the elastic deformation portion 18b, the circuit board 30
Although once moved to the contact 20 side when mounted on the housing 10, it returns to the normal mounting position when the mounting on the housing 10 is completed.

A plurality of board mounting projections 19 on which the circuit board 30 is mounted are formed on the upper surface 17 of the main body 11 and the upper surface of the connector 12.

After the circuit board 30 is mounted on the housing 10, the actuator is electrically connected to the circuit board, and the power and signal contacts 21 and 22 are connected to the board connecting portion 21.
b and 22b are soldered to the through holes 32 of the circuit board 30, and the actuator can be controlled by the circuit board.

[0013]

According to the electrical connector of the first aspect,
The elastic mounting part that mounts the circuit board on the insulating housing and the positioning part that moves the position of the through hole of the circuit board and positions the through hole with respect to the board connection part of the contact when mounting the circuit board on the insulating housing. Even if the housing cannot be formed into an appropriate shape by molding, the through holes formed in the circuit board are properly positioned with respect to the contacts provided in the housing, and the circuit board is mounted on the housing. Can be performed reliably.

[Brief description of the drawings]

FIG. 1 is a plan view of an electrical connector of the present invention.

FIG. 2 is a bottom view of the electrical connector of FIG.

FIG. 3 is a front view of the electrical connector of FIG. 1;

FIG. 4 is a cross-sectional view of the electrical connector of FIG. 1 taken along line 4-4.

FIG. 5 is a schematic partial enlarged view of an elastic mounting portion and a circuit board mounted on the elastic mounting portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric connector 10 Insulated housing 18 Elastic mounting part 18C Positioning part 20 Contact 22 Board connection part 30 Circuit board 32 Through hole

Claims (1)

(57) [Claims] An insulating housing on which a circuit board is mounted;
It mounted in the insulating housing, a contact having a board connecting portion to be connected to a thru-hole formed in the circuit board, is provided in the insulating housing, by being attached to a mounting hole formed in the circuit board An electrical connector comprising an elastic mounting portion for mounting the circuit board to the insulating housing, wherein the insulating housing includes a main body and
Projecting from one side of the main body and the contacts are attached
And the elastic mounting portion is arranged at the center via a slit.
The circuit board includes a pair of elastically deformable portions, and the circuit board has the pair of elastically deformable portions attached thereto.
The mounting hole is provided inside the outer edge of the circuit board, and the pair of elastically deforming portions gradually move from the upper end to the lower end.
An inclined outer surface inclined to be wider, and a lower end of the inclined outer surface;
Formed on the shoulder for retaining the circuit board and
Have, respectively, the one of the connector portion side of the elastic deformation of the pair, when mounting the circuit board in the insulating housing, the through-hole by moving the position of the pre-SL through hole to act to position to the front Symbol board connecting portion
Electrical connector, wherein a positioning portion, provided by the deposition on the inclined outer surface that.