JPH10208798A - Substrate connection device and actuator installation unit using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a substrate connection device and an actuator installation unit using this substrate connection device which can connect a substrate with a contact surely and also reduce the work manhour. SOLUTION: A contact housing 16 is formed by having a substrate placing surface 16a on which the substrate 50 can be placed and in press fit contacts 32-34, a press in contact part is extended from the substrate placing surface 16a to the upper side by arranging a base end part on the contact housing 16. By pressing the press in contact part in through holes 54 formed on the substrate 50, the wiring pattern formed on the substrate 50 by linking to the through holes 52, 53, 54 can be connected with the press fit contacts 32-34.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board connecting device for connecting boards, and a vehicle-mounted actuator mounting unit such as an ABS actuator using the board connecting device.

[0002]

2. Description of the Related Art An example of a vehicle-mounted actuator having a control board (board) therein is an actuator unit for an anti-lock brake system (hereinafter referred to as "ABS"). The ABS actuator unit is disposed in the engine room, and an actuator such as an electric motor and a solenoid valve is mounted in addition to the control board.

By supplying power to the actuator unit and inputting / outputting control signals, the control board controls each actuator to control the operation of the brake. For this reason, in the actuator unit, a contact connected to each actuator is provided in the actuator mounting housing, and the operation of each actuator is controlled by the control board by connecting the contact to the control board.

In this actuator unit,
In order to perform various controls by the control board, the actuator mounting housing is provided with a number of contacts such as a power supply contact and a control contact. These contacts and the control board are connected by wire bonding and soldering.

[0005]

However, since the above-mentioned actuator unit is disposed in the engine room, the vibration of the vehicle acts greatly. For this reason, in the connection by wire bonding and soldering, there is a possibility that the plating of the connection portion is peeled off due to this vibration, and a connection failure between the contact and the control board may occur. In addition, in order to perform connection by soldering, it is necessary to perform not only soldering work but also cleaning work, and thus there is a problem that the number of working steps increases and the working environment deteriorates. Furthermore, since the board cannot be firmly fixed only by soldering, it is necessary to screw the board to the case, and there is a problem that the number of work steps is further increased.

Here, in order to surely connect the contact and the control board, it is conceivable to form a through hole in the control board and insert the contact into the through hole and then perform soldering. However, if soldering is performed on the through hole, the hole on the side opposite to the side where the contact is inserted is closed by the solder, so it is necessary to confirm whether the through hole and the contact are in contact (finding a poor contact). Hard to do.

In addition, since the contact and the control board are fixed, the vibration of the actuator mounting housing is directly transmitted to the control board, which has a problem that electronic components provided on the control board are adversely affected. Furthermore, in any case, since soldering is performed, the number of work steps increases, and the work environment also deteriorates.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and it is possible to reliably connect a substrate and a contact, to reduce the number of work steps, and to deteriorate the work environment. It is an object of the present invention to provide a board connection device which does not cause the above and an actuator mounting unit using the board connection device.

[0009]

In order to achieve the above object, a board connecting device according to the present invention comprises a contact housing and a press-fit contact.
The contact housing is formed to have a substrate mounting surface on which a substrate can be mounted, and the press-fit contact is arranged such that the press-fit contact portion is disposed from the substrate mounting surface by disposing the base end portion in the contact housing. It is designed to extend upward. Then, by press-fitting the press-fit contact portion into the through-hole formed in the substrate, the wiring pattern formed on the substrate connected to the through-hole can be connected to the press-fit contact, and the substrate can be mounted on the substrate. It can be placed and held on the placement surface.

[0010] According to the board connecting device configured as described above, the board and the contact housing can be fixed only by press-fitting the board, and the board and the press-fit contact can be connected. Therefore, the work of mounting the substrate can be performed easily and reliably.

Further, an actuator mounting unit according to the present invention for achieving the above object is formed by using the above-mentioned substrate connecting device. That is, the actuator mounting housing and the contact housing are configured integrally with each other so that the on-vehicle actuator can be mounted and the board can be stored therein. According to the actuator mounting unit configured as described above, the substrate can be stored in the actuator mounting housing by press-fitting the substrate into the press-fit contact, and the in-vehicle actuator can be mounted on the actuator mounting housing. Therefore, the actuator mounting unit can be made compact.

The actuator mounting unit is not limited to the configuration described above, but may be configured such that the contact housing and the actuator mounting housing are separately formed, and the contact housing is mounted on the actuator mounting housing later.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of an actuator mounting unit using a board connection device according to the present invention will be described with reference to the drawings. FIG. 1 shows an actuator mounting unit according to the present invention which is mounted on a vehicle-mounted ABS.
The case where the present invention is used for an actuator unit will be described. The actuator unit 10 includes a main body housing (actuator mounting housing) 11 and a control board 50 provided in the main body housing 11.
Consists of

The main body housing 11 is formed in a rectangular box shape with an open top, and a connector holding portion 15 formed on one side has two power supply connectors 12, 13 and 1.
A plurality of signal connectors 14 are formed. The power connectors 12 and 13 are provided with two power contacts 22 and 23, respectively, and the signal connector 14 is provided with six signal contacts 24. A harness connector (not shown) is connected to each of the connectors 12, 13, and 14, and each of the contacts 22, 23, and 24 is connected.
Is electrically connected to the

Each of the contacts 22, 23, and 24 has a base end disposed in the connector holding portion 15 of the main body housing 11, and has a press-fit contact 3 for power supply.
2, 33 and a signal press-fit contact 34. Each press-fit contact 32,3
3 and 34 are formed in the same shape, but have different sizes due to the difference in capacitance.

Here, the signal press-fit contact 34 will be described with reference to FIG. The signal press-fit contact 34 is formed by stamping a metal plate, and has a tip portion 34 a and a spring portion 3.
4b and a base end 34c. The spring portion 34b has a width W wider than the width of the distal end portion 34a and the proximal end portion 34c, and has a through hole 34d formed at the center. Thereby, the spring portion 34b can be elastically deformed in a direction in which the width W is reduced.

The base end 34c is held by a contact housing 16 formed integrally with the main body housing 11, and is connected to the signal contact 24. That is, the number of the signal press-fit contacts 34 is the number corresponding to the number of the signal contacts 24, from the substrate mounting surface 16 a which is the upper surface of the contact housing 16 to the spring portion (press-fit contact portion) 3.
4b extends upward. .. Are arranged at a predetermined pitch P.

Next, the control board 50 will be described. The control board 50 has a through hole 5 for power supply.
2, 53 and a signal through hole 54 are formed. Here, the through hole is a plating 51 made of a conductive material such as gold on the inner peripheral surface of a through hole 51 a formed through the substrate main body 51 and the upper and lower surfaces connected to the inner peripheral surface.
b means that the plating 51b substrate body 51
It is connected to a wiring pattern (not shown) formed above.

Each of these through holes 52, 53, 54
Are connected to an electronic component E disposed on the substrate body 51 via a wiring pattern. Here, the signal through hole 54 will be described as an example. The inner diameter φ is formed to be slightly smaller than the width W of the spring portion 34b of the signal press-fit contact 34, and the signal press-fit contacts 34, 34. They are formed at the same pitch P at positions corresponding to the arrangement positions.

Here, in the main body housing 11, the press-fit contacts 32, 33 for the power supply are provided similarly to the press-fit contacts 34 for the signal.
The control board 50 is also provided with power supply through holes 52, 53 at positions corresponding to the power supply press-fit contacts 32, 33. The power press-fit contacts 32 and 33 have a larger current and voltage than the signal press-fit contacts 34, and are therefore formed larger. Correspondingly, the power supply through holes 52 and 53 are also formed with a large inner diameter.

According to the actuator unit 10 formed as described above, as shown in FIG. 1, by pressing the control board 50 from above the main body housing 11, each press-fit contact 32 to 34 is formed into each through-hole. 52 to 54 can be press-fitted. Thereby, each of the contacts 22 to 24 and the wiring pattern formed on the control board 50 can be easily and reliably connected.

Further, since the control board 50 is pressed into the press-fit contacts 32 to 34 while being mounted on the board mounting surface 16a, the control board 50 can be firmly held with respect to the main body housing 11. it can. In the main body housing 11, in order to hold the control board 50 more firmly,
A substrate support 17 is also provided.

After attaching the control board 50 to the actuator unit 10, the opening (opening) of the main body housing 11 is covered with a cover (not shown),
Waterproof and dustproof. Then, after an actuator such as an electric motor and a solenoid valve for controlling the supply and discharge of the brake oil is mounted, the actuator is mounted in an engine room and a harness connector is connected. This makes it possible to obtain a compact vehicle-mounted ABS actuator unit in which the control board 50 and the hydraulic pump and the like are integrated.

The above-mentioned actuator unit 10
Has described the case where the contact housing 16 according to the present invention is formed integrally with the main body housing 11, but the present invention is not limited to this. For example, the contact housing 16 may be formed separately from the main body housing 11 and then combined.

Further, the substrate connecting device of the present invention is not necessarily required to be used for the actuator unit 10 as described above, but may be configured to be used alone for the substrate connecting device. In the above embodiment, the case where the base ends of the press-fit contacts 32 to 34 are formed so as to be connected to the power and signal contacts 22 to 24 has been described, but the present invention is limited to such a configuration. What is connected to the press-fit contact may be a connection lead wire or the like.

[0026]

As described above, the board connecting device of the present invention is
The press-fit contact of the press-fit contact is pressed into the through-hole formed in the board to connect the wiring pattern formed on the board to the press-fit contact, and the board is placed on the board mounting surface of the contact housing. It is made to hold. Therefore,
Since the same through holes as in the case of soldering may be formed in the substrate, the substrate can be easily manufactured. This board can be firmly connected only by press-fitting it into the press-fit contact, and the board can be held. It does not cause environmental degradation.

In the case where the actuator mounting unit is configured by using the board connecting device configured as described above, the contact housing may be formed integrally with the actuator mounting housing or may be configured to be mounted on the actuator mounting housing. preferable. By configuring the actuator mounting unit in this way, the entire actuator mounting unit can be formed compact. In addition, the board | substrate hold | maintained by a housing is not necessarily fixed just by being press-fitted in a press-fit contact. Therefore, even if vibration is applied to the actuator during traveling of the vehicle, the contact portion of the press-fit contact with the substrate is slightly elastically deformed, so that the substrate does not directly vibrate and does not adversely affect the substrate.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an actuator mounting unit using a board connection device according to the present invention.

FIG. 2 is a sectional view of the actuator mounting unit taken along line II-II in FIG. 1;

[Explanation of symbols]

 Reference Signs List 10 Actuator unit 11 Main body housing 12, 13 Power supply connector 14 Signal connector 16 Contact housing 22, 23 Power supply contact 24 Signal contact 32, 33 Power supply press-fit contact 34 Signal press-fit contact 50 Control board

Claims (3)

[Claims] A contact housing formed with a substrate mounting surface on which a substrate can be mounted; a base end disposed in the contact housing; and a press-fit contact portion extending upward from the substrate mounting surface. And press-fitting the press-fit contact portion into a through-hole formed in the substrate to connect the wiring pattern formed on the substrate with the press-fit contact. A substrate connection device, wherein the substrate is placed and held on the substrate placement surface. 2. The board according to claim 1, wherein the contact housing is configured to be capable of mounting a vehicle-mounted actuator and is formed integrally with an actuator mounting housing capable of storing the board. An actuator mounting unit using a connection device. 3. The board connection device according to claim 1, wherein the contact housing is configured to be capable of mounting an on-vehicle actuator and is mounted on an actuator mounting housing capable of storing the board. Actuator mounting unit using.