JP2001291567A - Electronic control module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic control module in which a connection is easy and an effective wiring can be made. SOLUTION: At a control substrate unit 21 to which electronic parts 26 are mounted, plural female terminals 27 are installed. Plural fittings 31 which have male tabs 34 that is electrically connected with these female terminals 27 and to which a terminal of wire harnesses W is connected is arranged in parallel with a pressure-contact joint connector units 22, 23. By laminating the pressure-contact joint connector units 22, 23 on the control substrate unit 21, the female terminals 27 and the male tabs 34 are connected and an electronic control module 20 can be prepared. On this account, plural wire harnesses W can be easily connected to the control substrate unit 21, and a wiring of the wire harnesses W can be efficiently made.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an electronic control module, and more particularly, to an electronic control module in which a press-fit joint connector for connecting a wire harness to a board on which electronic components are mounted is stacked.

[0002]

2. Description of the Related Art In recent years, systems in automobiles have been increasing, and electronic control units (hereinafter referred to as ECUs) have been developed.
) Is being concentrated or decentralized. FIG. 5 shows the integrated ECU 1. The ECU 1 is configured such that a plurality of electronic components 3 are mounted on a board 2, and the entire board 2 is housed in a housing 4. In addition, a plurality of connector portions 5 for establishing connection with the outside are provided on a side wall of the housing 4. When such an ECU 1 is arranged in, for example, an engine room, the arrangement example is as shown in FIG. 6, for example. That is, the connector portions 5 provided on the plurality of side walls of the ECU 1 and the respective connector portions 5
And electrical components corresponding to, for example, wire harnesses W1 to W1.
It is connected via W4. The wire harness W
To the terminals 1 to W4, connectors to be connected to the respective connector sections 5 are attached.

On the other hand, FIG. 7 shows an ECU distributed by function.
6, 7, and 8 are shown. These ECUs 6, 7, 8
A plurality of electronic components 12, 13, and 14, each constituting each function, and an appropriate wiring pattern are formed on the substrates 9, 10, and 11, respectively. The ECUs 6, 7, 8 are arranged, for example, as in the arrangement example shown in FIG. The ECUs 6, 7, 8 are provided with, for example, wire harnesses W5, W5.
6, W7, and W8, are connected to each other or connected to an electric component provided at a desired position on the vehicle.
A wire harness W5 connected to each of the ECUs 6, 7, 8;
The terminals W6, W7 and W8 have, for example, connector portions 6A, 6B, 7A, 7B, 8A,
8B is attached.

[0004]

However, when the ECUs 1 are integrated as shown in FIG. 5, the system of the ECUs 1 is expanded, so that the burden on design requirements increases. That is, since the connector portion 5 of the ECU 1 is arranged on each side wall of the housing 4, as shown in FIG. 6, the wire harnesses W1 to W4 are routed to a plurality of side walls, and the grouping of the wire harnesses is deteriorated. There was a problem that routing was inconvenient. In addition, a connector having a structure corresponding to the connector portion 5 provided on each side wall must be attached to each wire harness, and there is a problem that the number of steps increases.

On the other hand, the decentralized ECU shown in FIG.
The use of 6, 7, and 8 has the advantage that the respective ECUs can be appropriately arranged for switches and loads, but the place where the ECUs can be arranged in, for example, an engine room of a car is limited, and in practice, Has a problem that there is no room for free arrangement.

Therefore, an object of the present invention is to make connection easy,
It is an object of the present invention to provide an electronic control module that allows efficient routing.

[0007]

According to the first aspect of the present invention,
An electronic control module, comprising: a control board unit on which electronic components are mounted to form a control circuit and a plurality of connected parts connected to the control circuit; and a control board unit electrically connected to the connected part. A plurality of connection fittings having a connection portion to be obtained and connected to the wire harness are pressure-welded joint connector units arranged in parallel, and by laminating the pressure-welded joint connector units on the control board unit, A connection part is connected to the connection part.

According to the first aspect of the present invention, since the press-connecting joint connector unit is laminated on the control board unit, the press-fit joint connector unit is disposed on the connected portion provided on the control board unit and the press-connecting joint connector unit. The connection part of the connection fitting is electrically connected. In the control board unit, since the connected portion is arranged on the surface facing the press-connecting joint connector unit, the connection to the external wiring (wire harness) is performed on only one surface of the control board unit. This makes it possible to efficiently and easily arrange the wiring harness.

According to a second aspect of the present invention, there is provided the electronic control module according to the first aspect, wherein the press-connecting joint connector unit is laminated on a lower surface side of the control board unit, and the connection portion of the connection fitting is provided. Is a male tab projecting upward, and the connected portion is a female terminal into which the male tab is inserted.

Therefore, according to the second aspect of the present invention, in addition to the operation of the first aspect of the present invention, the male tab of the connection fitting is formed by stacking the press-connecting joint connector unit on the lower surface of the control board unit. And can be easily connected.

[0011] Further, the invention according to claim 3 is based on claim 1.
The electronic control module according to claim 1, wherein a position of the connection fitting opposite to the connection portion is the connection of the connection fitting arranged in another press-fitting joint connector unit stacked on the press-fitting joint connector unit. A connected part between fittings to which the parts are connected is provided.

Therefore, according to the third aspect of the present invention, in addition to the operation of the first aspect, a plurality of press-connecting joint connector units can be sequentially stacked on the control board unit. For this reason, it is possible to expand the circuit configuration range of the wire harness connected to the control board unit.

According to a fourth aspect of the present invention, there is provided the electronic control module according to the third aspect, wherein the connection portions of the connection fittings arranged in each of the press-connecting joint connector units project upward. Male tab
The connected part between the metal fittings is a female part to which the male tab is inserted and electrically connected, and the connected part of the control board unit is a female terminal into which the male tab is inserted. I have.

Therefore, according to the fourth aspect of the invention, in addition to the operation of the third aspect of the invention, the male tab of the connection fitting of the press-fit joint connector unit to be laminated is inserted into the female terminal of the control board unit. Connection between the press-fit joint connector unit and the control board unit can be easily achieved. In addition, electrical connection can also be achieved between the press-connecting joint connector units by inserting the male tab into the female portion. Therefore, a plurality of press-connecting joint connector units can be easily connected to the control board unit without increasing the number of steps.

Further, the invention according to claim 5 is the invention according to claim 1.
5. The electronic control module according to claim 4, wherein, in the plurality of connection fittings in the press-fit joint connector unit, adjacent connection fittings are continuously or independently arranged. And

Therefore, according to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects of the present invention, a plurality of connection fittings in the press-fitting joint connector unit can be connected to each other or electrically connected. The circuit can be easily cut or branched, so that the circuit can be easily branched or coupled. Therefore, various circuit configurations can be performed only by managing connection and disconnection of the connection fitting.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an electronic control module according to the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 1 is an exploded perspective view showing a state in which the electronic control module of the present embodiment is disassembled into units (a state before the units are assembled).

The electronic control module 20 of the present embodiment includes a control board unit 21 and a plurality (two in this embodiment)
2 and 23.

As shown in FIG. 1, the control board unit 21 has a control board 24 housed and fixed in a substantially rectangular board unit housing 25. A desired wiring pattern 28 (see FIG. 4) is formed on the control board 24, and a plurality of various electronic components 26, which are components of an electronic control circuit, are mounted on the control board 24.

On the control board 24, a plurality of female terminals 27 connected to a wiring pattern 28 to which the electronic components 26 are connected are arranged in rows along a predetermined direction. The female terminal 27 includes a pair of holding pieces 29, 29 arranged in a row on the control board 24 in a predetermined direction and opposed to each other at positions sandwiching each of the formed plurality of male tab insertion holes 24 </ b> A. . Each holding piece 29 has a substantially L-shaped side surface, and the lower end 2
9A penetrates the control board 24, and the lower end 29A is held by the control board 24.
The lower end 29A of at least one of the holding pieces 29 of the female terminal 27 is fixed by soldering to a wiring pattern 28 formed on the control board 24. A curved portion 29 </ b> B is formed above a portion of the holding piece 29 penetrating the control board 24 so as to float from the control board 24. The reason why the curved portion 29B is formed in the vicinity of the portion where the holding piece 29 is held by the control board 24 is that the holding pieces 29, 29
This is because, when an insertion operation of a male tab, which will be described later, is performed in between, the bending operation is performed at the curved portion 29B, so that stress is less likely to be applied to the soldered portion of the lower end portion 29A of the holding piece 29.

Further, an opening (not shown) is formed in a bottom plate (not shown) of the board unit housing 25 so as to expose a male tab insertion hole 24A of the control board 24 fixed and disposed on the bottom plate.

Next, the structure of the press-fit joint connector units 22 and 23 stacked below the control board unit 21 will be described. As shown in FIG. 1, the press-welding joint connector unit 22 includes a substantially rectangular parallelepiped connector housing 30 having a low height, and a plurality of connection fittings 31 arranged in parallel in the connector housing 30. The connection fittings 31 are accommodated and held in a plurality of fitting arrangement grooves 30 </ b> A arranged and formed so as to be parallel to the connector housing 30. An opening (not shown) is formed at the bottom of each of the metal fitting grooves 30A formed in the connector housing 30 so as to expose a connected portion 35 of the connecting metal fitting 31, which will be described later.

As shown in FIG. 3, the connection fitting 31 includes a pair of opposed plate portions 32, 32 facing each other, a bottom plate portion 33 connecting lower edges of these opposed plate portions 32, 32, and a bottom plate portion 33. A male tab 34 bent upward so as to rise up obliquely rearward and upward from a front end thereof, and to rise upward along a top edge of the facing plate portion 32 at a position rearward from the upper front end by a predetermined distance. A connected portion 35 which is a female portion formed on the bottom plate portion 33 below the tab 34, a lateral connection piece 36 formed on the rear end portion, and a cut-and-raised portion facing inward from the opposing plate portion 32. And a harness holding piece 37.

As shown in FIG. 1, for example, terminals of a wire harness W connected to electric devices arranged in various places of an automobile are connected to such connection fittings 31. In the press-fit joint connector unit 22, the plurality of connection fittings 31 are arranged so as to face in the same direction in parallel, and the wire harness W is drawn out from the rear end of the connection fitting 31 as shown in FIG. It has become. The configuration of the press-connecting connector unit 22 has been described above, but the configuration of the press-connecting connector unit 23 is also the same. In these press-fit joint connector units 22 and 23, the lateral connecting pieces 36 of the plurality of connecting fittings 31 adjacent to each other are connected.
According to the circuit design, a state in which the connection metal pieces 31 are cut and electrically independent from each other, and
6 can be set to the connected state.

The electronic control module 20 as shown in FIG. 2 can be manufactured by assembling the control board unit 21 and the press-connecting joint connector units 22 and 23 having the above-described configurations. Female terminal 2 in electronic control module 20 shown in FIG.
7 and the connection fittings 31 of the press-fitting joint connector unit 22 and the connection fittings 31 of the press-fitting joint connector unit 23 are in a state as shown in FIG. 4, for example. That is, between the holding pieces 29 of the female terminal 27, the connection fitting 3 of the press-fit joint connector unit 22 is provided.
One male tab 34 is inserted, and the connection between the control board unit 21 and the press-fit joint connector unit 22 is established. Further, the male tab 34 of the connection fitting 31 of the other press-fitting joint connector unit 23 stacked below the press-fitting joint connector unit 22 is inserted into the connected portion 35 of the connection fitting 31 of the press-fitting joint connector unit 22 for connection. Is planned. In FIG. 4, the female terminals 27 of the control board unit 21 are shown.
And the fitting 3 of the press-fit joint connector unit 22
1 and the connection fitting 31 of the press-fit joint connector unit 23 are shown, but the upper and lower connections can be appropriately selected depending on the circuit design. In that case, it is possible to deselect the connection with the upper part by bending the male tab 34 and laying it down.

In the present embodiment, the electronic control module 20 is composed of the control board unit 21 and the press-connecting joint connector units 22 and 23. However, the number of the press-connecting joint connector units can be further increased. It is also possible to use only one press-fit joint connector unit.

In the present embodiment, since a plurality of wire harnesses W are led out in the same direction with respect to the press-connecting joint connector units 22 and 23, the wiring can be facilitated, and the wiring in the vehicle body can be easily arranged. The efficiency of cable search can be increased.

Further, in this embodiment, since the press-connecting joint connector units 22 and 23 are sequentially laminated on the lower surface of the control board unit 21, it is possible to prevent an increase in the connection area and to reduce the size of the electronic control module 20 as a whole. be able to.

Further, in the present embodiment, the functions of the electronic control unit (ECU) mounted on the control board unit 21 are narrowed down, so that the size of the electronic control module 20 can be further reduced.

Further, in the present embodiment, by selecting the presence or absence of the lateral connection piece 36 of the connection fitting 31 in the press-connecting joint connector units 22 and 23 and the presence or absence of the male tab 34 standing up, there is room for circuit design. Can be greatly expanded.

[0031]

As is apparent from the above description, according to the first aspect of the present invention, the electronic control board unit has the connected portion disposed on the surface facing the press-connecting joint connector unit. The connection to the external wiring (wire harness) can be performed on only one surface of the unit. Therefore, according to the first aspect of the present invention, it is possible to efficiently arrange the wire harness, reduce the arrangement space, and facilitate the connection.

According to the second aspect of the present invention, in addition to the effect of the first aspect, the male tab of the connection fitting is electronically controlled by laminating the press-contact joint connector unit on the lower surface of the electronic control board unit. It can be easily connected by being inserted into the female terminal of the board unit. Also, by releasing the state in which the electronic control board unit and the press-fit joint connector unit are stacked, the connection wiring (wire harness) can be removed from the electronic control board unit, and the electronic control board unit and the press-fit joint connector unit can be removed. This also has the effect of facilitating the reorganization of the electronic circuit constituted by

According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, a plurality of press-connecting joint connector units are stacked on the electronic control board unit, so that the electronic control board unit can be mounted on the electronic control board unit. This has the effect of expanding the circuit design range of the connected wire harness.

According to the fourth aspect of the present invention, in addition to the effects of the third aspect, a plurality of press-connecting joint connector units can be mounted on the electronic control board unit.
Connection can be made easily without increasing man-hours.

According to the invention described in claim 5, claims 1 to 5
In addition to the effects of the invention described in claim 4, a plurality of connection fittings in the press-connecting joint connector unit can be connected or electrically cut off, so that branching and coupling of a circuit can be easily performed. It is possible to perform various circuit configurations only by managing connection and disconnection between connection fittings.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a state before an assembly of an electronic control module according to an embodiment of the present invention.

FIG. 2 is a perspective view of the electronic control module of the embodiment.

FIG. 3 is a perspective view of a connection fitting 31 used in the embodiment.

FIG. 4 is an explanatory sectional view showing a connection state in a vertical direction in the embodiment.

FIG. 5 is a perspective view showing a conventional integrated ECU.

6 is an explanatory plan view showing an example of the arrangement of ECUs shown in FIG. 6;

FIG. 7 is a perspective view showing a conventional decentralized ECU.

FIG. 8 is an explanatory plan view showing an example of the arrangement of ECUs shown in FIG. 7;

[Explanation of symbols]

 Reference Signs List 20 electronic control module 21 control board unit 22, 23 press-fit joint connector unit 27 female terminal 31 connection fitting 34 male tab 35 connected part W wire harness

Claims (5)

[Claims] 1. A control board unit on which an electronic component is mounted to form a control circuit, and a plurality of connected parts connected to the control circuit are arranged in a predetermined arrangement. A plurality of connection fittings having connection portions that can be connected and connected to the wire harness are pressure-welding joint connector units arranged in parallel, by laminating the pressure-welding joint connector unit on the control board unit, An electronic control module, wherein the connected part and the connection part are connected. 2. The electronic control module according to claim 1, wherein the press-connecting connector unit is stacked on a lower surface side of the control board unit, and the connection part of the connection fitting protrudes upward. An electronic control module, wherein the connected portion is a female terminal into which the male tab is inserted. 3. The electronic control module according to claim 1, wherein a position of the connection fitting opposite to the connection portion is arranged in another press-fit joint connector unit stacked on the press-fit joint connector unit. An electronic control module, wherein a connected part between fittings to which the connecting part of the connected fitting is connected is provided. 4. The electronic control module according to claim 3, wherein the connection portions of the connection fittings arranged in each of the press-connecting joint connector units are male tabs projecting upward and between the fittings. An electronic control, wherein the connected portion is a female portion into which the male tab is inserted and electrically connected, and the connected portion of the control board unit is a female terminal into which the male tab is inserted. module. 5. The electronic control module according to claim 1, wherein the plurality of connection fittings in the press-fit joint connector unit are such that adjacent connection fittings are continuous or independent. An electronic control module, wherein the electronic control module is arranged in the electronic control module.