JP2000219116A - Abs device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ABS device with a connector-integrated case capable of enhancing the efficiency of coil assembling work and reducing the manufacturing cost. SOLUTION: In an ABS device, a coil 3 is arranged within a coil storage part 1c installed in a connector-integrated case 1. By passing the coil 3 together with the connector-integrated case 1 through a flow soldering tank, a coil terminal 3a of the coil 3 as well as a lead frame 1b formed within the connector- integrated case 1 are flow-soldered. A substrate 4 is installed in the connector- integrated case 1, while both another end of the lead frame 1b connected to the coil terminal 3a and a connector terminal 1a formed within the connector- integrated case 1 are connected to the substrate 4 by means of an aluminum wire 6, respectively, Then, the connector-integrated case 1 and a fluid unit 8 are integrated as one body so that the coil 3 connected to the connector- integrated case 1 is mated with a valve 8 attached to the fluid unit 8, being assembled as an ABS device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ABS device, and more particularly, to an ABS device having a connector integrated case for realizing low cost and improving efficiency in coil assembly.
It relates to a BS device.

[0002]

2. Description of the Related Art In order to brake a vehicle while ensuring vehicle stability, an ABS device (anti-lock brake) that adjusts a brake working fluid pressure (brake pressure) when a brake pedal is depressed to prevent wheels from locking. System) has been developed and is effective in preventing slip accidents.

An ABS device 30 shown in FIG. 3 includes a wheel speed signal output device (not shown) provided for each wheel, and a board for determining an optimum braking force according to a wheel slip ratio and outputting a control signal. 34, a fluid unit 38 for varying the working fluid pressure for braking in accordance with the output of the substrate 34, and a coil terminal 33a on the upper side, which is assembled to the fluid unit 38 by excitation and demagnetization according to the output of the substrate 34. A coil 33 for opening and closing a valve 38a forming a part of a braking working fluid path, a connector terminal 31a for connection to an external device (not shown), and a lead frame for connecting the substrate 34 and the coil terminal 33a. The connector integral case 31 integrally molded with 31b constitutes a main part.
An electronic component 35 is soldered to the substrate 34 in advance.

[0004] The ABS device 30 configured as described above is
First, the coil terminal 33a of the coil 33 is connected to one end of a lead frame 31b formed in the connector integrated case 31 by welding. Then, the board 34 is assembled to the connector integrated case 31, and the other end of the lead frame 31b connected to the coil terminal 33a and the connector terminal 31a formed in the connector integrated case 31 are each connected to the conductive pattern of the board 34 by the aluminum wire 36 (see FIG. (Not shown).

[0005] Here, when it is necessary to ensure heat dissipation, a metal plate such as an aluminum plate 37 is used for the substrate 34 to which the electronic components 35 are soldered, and this is formed by using an adhesive resin such as silicon. Pasted.

[0006] Thereafter, the connector integrated case 31 and the fluid unit 38 are integrated such that the coil 33 connected to the connector integrated case 31 and the valve 38a assembled to the fluid unit 38 are combined, and the ABS is integrated.
Assembled as device 30.

[0007]

However, in the conventional ABS device, when the coil is connected by a welding method, new capital investment cannot be avoided, and the depreciation cost per vehicle increases. There is a problem that since the connection is made point by point, the manufacturing tact is long, and the processing cost is also increased.

Further, when the coil 33 of the ABS device 30 mounted on the vehicle fails, the coil 33 is welded to the lead frame 31b formed on the connector integrated case 31, so that only the failed coil 33 needs to be replaced or replaced. Or, repair becomes impossible, and it is necessary to discard the connector integrated case 31 to which the coil 33 is welded, which causes a problem that the repair cost is increased.

Therefore, an object of the present invention is to connect the coils by a flow soldering process using existing equipment. Therefore, it is not necessary to introduce a new welding equipment or the like, and it is possible to process the coils by connecting them at one time. An object of the present invention is to provide an ABS device that can reduce man-hours and, consequently, processing costs and repair costs.

[0010]

SUMMARY OF THE INVENTION Accordingly, in order to achieve the above object, the present invention provides a board for determining an optimum braking force in accordance with a wheel slip ratio and outputting a control signal, and containing the board. A connector integrated case in which a connector terminal and a lead frame electrically connected to the substrate are integrally formed, and a coil that is incorporated in the connector integrated case and is demagnetized by a control signal from the substrate, A coil terminal provided on an upper portion of the coil is bonded to the lead frame by flow solder connection.

A connector in which a board for determining an optimum braking force in accordance with a wheel slip ratio and outputting a control signal, and a connector terminal for accommodating the board and electrically connecting to the board are integrally formed. An integrated case, and a coil incorporated in the connector integrated case and energized and demagnetized by a control signal from the substrate, wherein a coil terminal provided on an upper portion of the coil and the connector terminal are connected to the substrate by flow soldering. It is characterized by being adhered by.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an ABS device according to the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an embodiment of an ABS device according to the present invention.

In FIG. 1, 10 is an ABS device, 1 is a connector integrated case, 1a is an external connection connector terminal, 1b is a lead frame, 1c is a coil housing portion, 2 is a flow solder connection portion, 3 is a coil, and 3a is a coil. Coil terminal, 4 is substrate, 5
Is an electronic component, 6 is an aluminum wire, 7 is an aluminum plate, 8 is a fluid unit, and 8a is a valve.

The substrate 4 is, for example, a glass epoxy substrate or a ceramic substrate.
Are mounted in a connector integrated case 1 described later in a state of being soldered in advance, and determine an optimum braking force according to a slip ratio of a wheel and output a control signal.

The fluid unit 8 changes the pressure of the working fluid for braking in accordance with the output of the substrate 4, and a valve 8a forming a part of the working fluid path for braking is provided above the fluid unit 8. .

The connector integrated case 1 includes an aluminum wire 6
Thus, a connector terminal 1a for connection with an external device (not shown) electrically connected to the substrate 4 and a lead frame 1b are integrally formed. Further, in the connector integrated case 1, a coil housing portion 1 c for housing a coil 3 described later is provided at a position corresponding to the valve 8 a of the liquid unit 8. The lead frame 1b is for electrically connecting to a coil 3 described later.

The coil 3 is for opening and closing a valve 8a mounted on the fluid unit 8 by excitation and demagnetization in accordance with the output of the substrate 4. A coil terminal 3a provided above the coil 3 The lead frame 1b formed on the integrated connector case 1 is adhered and fixed at the flow solder connection portion 2 by solder connection.

Aluminum plate 7 which is a metal plate having high thermal conductivity
When it is necessary to ensure heat radiation from the substrate 4, the substrate is attached to the side of the substrate 4 opposite to the side on which the electronic components 5 are mounted using, for example, a silicon-based adhesive resin.

The ABS device 10 constructed as described above is assembled as follows.

First, the coil 3 is placed in the coil housing 1c provided in the connector integrated case 1. When the connector-integrated case 1 together with the coil 3 passes through a flow solder bath (not shown), the coil terminals 3a of the coil 3 and the lead frame 1b formed in the connector-integrated case 1 are formed.
Is flow soldered.

Next, the substrate 4 is mounted on the connector integrated case 1, and the other end of the lead frame 1 b connected to the coil terminal 3 a and the connector terminal 1 a formed on the connector integrated case 1 are each made of aluminum wire 6 on the substrate 4. Connected to.

Here, when it is necessary to ensure heat dissipation from the substrate 4, the aluminum plate 7 is attached to the side of the substrate 4 opposite to the side on which the electronic components 5 are mounted, using an adhesive resin. Can be

Thereafter, the connector integrated case 1 and the fluid unit 8 are connected to the coil 3 connected to the connector integrated case 1.
And the valve 8a assembled to the fluid unit 8 are integrated so as to be combined, and assembled as the ABS device 10.

As described above, the ABS device 10 has a configuration in which the coil terminal 3a of the coil 3 is flow-soldered to the lead frame 1b in the connector integrated case 1 and the connector integrated case 1 and the coil 3 are connected. Existing flow soldering equipment can be used, and equipment investment can be reduced compared to conventional welding methods.

Further, in the case of the conventional welding method, since the connection is performed one point at a time, the number of processing steps is increased.
In the case of the ABS device 10 of the present invention, all terminals can be connected at once by soldering through a flow solder bath, and the number of processing steps can be greatly reduced.

Next, another embodiment of the ABS device according to the present invention will be described with reference to the drawings. FIG. 2 is a side view showing another embodiment of the ABS device according to the present invention.

In FIG. 2, 20 is an ABS device, 21 is a connector integrated case, 21a is an external connection connector terminal, 21
b is a lead frame, 21c is a coil housing, 22a,
22b is a flow solder connection part, 23 is a coil, 23a is a coil terminal, 24 is a board, 25 is an electronic component, 27 is an aluminum plate, 28 is a fluid unit, and 28a is a valve.

The board 24 is, for example, a glass epoxy board or a ceramic board, and is mounted on a connector integrated case 21 described later in a state where an electronic component 25 is soldered to one surface thereof in advance. The optimum braking force is determined accordingly and a control signal is output.

The board 24 has a flow solder connection portion 22b to be flow soldered to the connector terminal 21a of the connector integrated case 21, and a flow solder connection portion 22a to be flow soldered to a coil terminal 23a of a coil 23 described later. Is formed, and the board 24, the connector integrated case 21 and the coil 23 pass through the flow solder bath, so that the board 24, the connector terminal 21a and the coil terminal 23a are connected at one time.

The fluid unit 28 has the same structure as the fluid unit 8 of the ABS device 10 shown in FIG. 1, and varies the working fluid pressure for braking in accordance with the output of the substrate 24. A valve 28a forming a part of the braking working fluid path is provided.

The connector integrated case 21 is formed by integrally molding a connector terminal 21a for connection with an external device (not shown) electrically connected to the substrate 24. Also,
The connector integrated case 21 includes a coil 23 to be described later.
Is provided at a position corresponding to the valve 28a of the liquid unit 28.

The coil 23 is energized and demagnetized according to the output of the substrate 24, and is connected to the valve 2 mounted on the fluid unit 28.
The coil terminal 23a provided on the upper portion of the coil 23 is bonded and fixed at the flow solder connection portion 22a formed on the substrate 24 by flow solder connection.

Aluminum plate 27 which is a metal plate having high thermal conductivity
Has the same configuration as the aluminum plate 27 of the ABS device 10 shown in FIG. 1. When it is necessary to ensure the heat radiation from the substrate 24, the substrate 24 is formed using, for example, a silicon-based adhesive resin. It is attached to the side opposite to the side on which the electronic component 25 is mounted.

The ABS device 20 configured as described above is assembled as follows.

First, the board 24 is placed on the upper part of the connector integrated case 21 and the coil 23 is placed in the coil housing 2.
1c. When the connector integrated case 21 together with the board 24 and the coil 23 passes through a flow solder bath (not shown), the flow solder connection portion 21 of the board 24 is formed.
The coil terminal 23a of the coil 23 and the connector terminal 2
1a is flow soldered at a time.

Here, when it is necessary to ensure the heat radiation from the substrate 24, the aluminum plate 27 is bonded with an adhesive resin.
The board 24 is attached to the side opposite to the side on which the electronic components 25 are mounted.

Then, the connector integrated case 21 and the fluid unit 28 are integrated so that the coil 23 connected to the connector integrated case 21 and the valve 28a assembled to the fluid unit 28 are combined, and the ABS is integrated.
Assembled as device 20.

As described above, in the ABS device 20, the board 24 on which the electronic components 25 are soldered in advance by a reflow process or the like is arranged in the connector integrated case 21, and the coil 23 and the connector terminals 21a are flow soldered. Therefore, existing flow soldering equipment can be used, and equipment investment can be reduced as compared with the conventional welding method.

Further, all the terminals of the coil 23 and the connector terminal 21a can be connected at a time by flowing the solder into the flow solder bath and soldering. Can be significantly reduced.

Further, since there is no connection step using an aluminum wire, which has been performed in the ABS device 10, the number of processing steps can be greatly reduced as compared with the ABS device 10, and the processing cost can be greatly reduced.

[0042]

As described above, by employing the ABS device of the present invention, it is possible to connect the coils by the solder flow method. The equipment for the solder bath in the solder flow method is conventionally required for manufacturing an electronic control unit (ECU), and there is no need to introduce new equipment. be able to.

Conventionally, in the case of a welding method widely used for connection of coils, or in the case of connection by hand solder,
Although it was necessary to connect the points one by one, the manufacturing tact was long and the processing man-hour was increased, and the processing cost was also increased. However, according to the present invention, the coil was connected by one solder flow process. By doing so, the manufacturing tact can be suppressed, the number of processing steps can be reduced, and the cost can be reduced.

Further, according to the present invention, the terminals for coil connection and external connection can be connected at one time, and there is no connection step using aluminum wires. Therefore, manufacturing tact is greatly suppressed and the number of processing steps is reduced. In addition, the cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an ABS device according to the present invention.

FIG. 2 is a side view showing another embodiment of the ABS device according to the present invention.

FIG. 3 is a side view showing a conventional ABS device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Connector integrated case 1a External connection connector terminal 1b Lead frame 1c Coil housing part 2 Flow solder connection part 3 Coil 3a Coil terminal 4 Substrate 5 Electronic component 6 Aluminum wire 7 Aluminum plate 8 Fluid unit 8a Valve 10 ABS device

Claims (2)

[Claims] 1. A board for determining an optimum braking force in accordance with a wheel slip ratio and outputting a control signal, a connector terminal for accommodating the board and being electrically connected to the board and a lead frame, respectively, are integrally formed. A connector integrated case, and a coil incorporated in the connector integrated case and demagnetized by a control signal from the board, wherein a coil terminal provided on an upper portion of the coil is connected to the lead frame by flow soldering. An ABS device, which is bonded. 2. A connector in which a board for determining an optimum braking force in accordance with a slip ratio of a wheel and outputting a control signal, and a connector terminal accommodating the board and being electrically connected to the board are integrally formed. An integrated case, and a coil incorporated in the integrated connector case and excited and demagnetized by a control signal from the substrate, wherein a coil terminal provided on an upper portion of the coil and the connector terminal are connected to the substrate by flow soldering. An ABS device characterized by being adhered by: