JP2571482Y2 - Connection structure of electronic unit to electrical junction box - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting an electronic unit to an electric connection box, and more particularly to an electric connection box for connecting a connector section on the electric connection box side to a connector section on the electronic unit side. Electronic device coupling structure.

[0002]

2. Description of the Related Art FIG. 3 shows an electric connection box 1 and an electronic unit 3 described in Japanese Utility Model Laid-Open No. 1-101112.
In the figure, the electric connection box 1 is formed with a fitting recess 7 in which the electronic unit 3 is fitted on the upper portion of the connection box main body 5, and a connection box side connector portion 9 is formed in the fitting recess 7. . Further, the connection box side engaging portion 11 is provided around the fitting recess 7.
Is provided. As shown in FIG. 4, the connection box side connector section 9 has a male terminal section 17 at the distal end of the busbar accommodated in a terminal accommodation chamber surrounded by a side wall. In addition, the connection box side engaging portion 11 is configured such that a locking projection protrudes from a central portion of a U-shaped side wall.

On the other hand, on the lower surface side of the electronic unit 3, FIG.
The electronic unit side connector portion 13 is formed as shown in FIG.
5 are formed. Electronic unit side connector 13
The female terminal 19 is accommodated in a terminal accommodating chamber constituted by a side wall, and when the electronic unit 3 is fitted in the fitting recess 7, the male terminal 17 of the connection box-side connector 9 is engaged. It is inserted and electrically connected. The electronic unit side engaging portion 15 is formed of a flexible locking frame having a locking hole, and when the electronic unit 3 is fitted in the fitting concave portion 7, the connection box side engaging portion 11 is locked. The projection is engaged with the locking hole, and holds the electronic unit 3 in the fitting recess 7.

An electronic unit 3 is attached to such an electric junction box 1.
After the electronic unit 3 is aligned with the fitting concave portion 7 of the connection box main body 5, the connection box side engaging portion 11 and the electronic unit side engaging portion 15 are mechanically engaged,
The male terminal 17 of the connection box side connector 9 is inserted into the female terminal 19 of the electronic unit side connector 13 for electrical connection.

However, the operation of mechanically engaging the connection box side engaging portion 11 with the electronic unit side engaging portion 15 and electrically connecting the connection box side connector portion 9 and the electronic unit side connector portion 13 are performed. Is performed at the same time, the coupling force (insertion force) at the time of coupling the electronic unit 3 to the connection box main body 5 is increased, and it may be difficult to perform a manual fitting (coupling) operation.

Further, the connection box main body 5 constituting the fitting concave portion 7
The electronic unit 3 is difficult to fit into the fitting recess 7 if the side wall of the electronic component 3 is warped.

[0007]

As described above, in the conventional connection structure of an electronic unit to an electric junction box,
A large force was required for joining, and the joining operation was not easy.

The present invention has been made in consideration of the above circumstances, and has as its object to provide a coupling structure of an electronic unit to an electric junction box, which can easily couple the electronic unit to the electric junction box.

[0009]

In order to achieve the above object, according to the present invention, the connection box main body side engaging portion and the electronic unit side engaging portion are engaged to mechanically connect the electronic unit to the connection box main body. And a joint connector having a joint terminal for electrically connecting the main body side terminal of the connection box side connector portion and the unit side terminal of the electronic unit side connector portion in a state of being connected to the connector box.

[0010]

According to the present invention, after the connection box side engaging portion and the electronic unit side engaging portion are mechanically engaged, the unit side terminal of the electronic unit side connector portion and the main body side of the connection box side connector portion. The terminals are electrically connected by joint terminals.

Therefore, according to the connecting structure of the present invention, the operation of mechanically connecting the connecting box side engaging portion and the electronic unit side engaging portion, and the main body side terminal and the electronic unit side of the connecting box side connector portion. Since the operation of electrically connecting the connector unit to the unit-side terminal is performed separately, the electronic unit can be easily connected to the electric connection box without requiring a large force at the time of connection. Further, even if the side walls of the connection box side connector section and the electronic unit side connector section are warped, the connection box side connector section and the electronic unit side connector section are not directly fitted to each other, which hinders connection. Nothing.

[0012]

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

1 and 2 show an electric connection box 21, an electronic unit 23, and a joint connector 25 for electrically connecting the electric connection box 21 and the electronic unit 23 to which the present invention is applied.

A fitting portion 27 is formed at an upper portion of the connection box main body 5 of the electric connection box 21. The fitting portion 27 includes a substantially U-shaped side wall 29 erected from the upper portion of the connection box main body 5,
An L-shaped side wall 31 corresponding to a corner of the electronic unit 23 is provided.
5 are integrally formed. Connection box side connector 35
The five terminal accommodating chambers 37 are formed along the longitudinal direction of the side wall 29, and accommodate the male terminal portions 39 of the bus bar wiring board arranged in the connection box main body 5, respectively. Also,
Side walls 29 are provided on both sides in the longitudinal direction of the connection box side connector portion 35.
A gap 75 is provided between the inner wall and the inner wall. Further, a locking projection 47 is provided on the outer periphery of the side wall 29 so as to project therefrom. Further, as shown in FIG. 2, a tapered portion 35a is formed outside the upper end of the side wall 29.

A connection box side engaging portion 41 is provided between the side walls 29 and 31 respectively. Connection box side engaging part 4
1 includes a substantially U-shaped side wall 43 and a locking projection 45 projecting outward from the side wall 43.

The electronic unit 23 is a box body in which electronic components and the like are accommodated. The electronic unit 23 has an electronic unit side connector 49 connected to the electronic components. Protrusions 51, 51 are provided respectively. The electronic unit side connector 49 is
Male terminal portions 73 connected to the substrate in the electronic unit 23 are housed in five terminal housing chambers 71 formed in series. The male terminal portion 73 is inserted into the female terminal fitting 67 of the joint connector 25 in a state where the electronic unit 23 is fitted in the fitting portion 27.

The protruding portions 51 are fitted into gaps 75 on both sides in the longitudinal direction of the connection box side connector portion 35, so that the electronic unit 23 is positioned with respect to the fitting portion 27. . Further, a slit-like groove 53 is formed adjacent to the electronic unit side connector portion 49.

An electronic unit side engaging portion 55 is formed on the outer periphery of the electronic unit 23. The electronic unit side engaging portion 55 is constituted by a flexible locking frame 59 having a locking hole 57, and when the electronic unit 23 is fitted to the fitting portion 27, the connection box side engaging portion 41 is provided. The locking projection 45 is locked.

The joint connector 25 has four side walls 63, 63, 65, 65 extending downward from the upper surface 61.
(However, one side of the side wall 65 is not shown), and a plurality of female terminal fittings 67 disposed inside surrounded by the side walls 63, 63, 65, 65. As shown in FIG. 2, the female terminal fittings 67 are U-shaped, and female terminal portions 67a are formed at both ends, respectively.
The base 67 b connecting the bases 7 a is embedded and fixed in the upper surface 61.

The pitch between both ends of the female terminal portion 67a is substantially equal to the pitch between the male terminal portion 39 of the connection box side connector portion 35 and the male terminal portion 73 of the electronic unit side connector portion 49. It is formed equally. Also, the side walls 63 and 6
3 are provided with rectangular locking holes 69, respectively, and the locking projections 47 projecting from the side wall 29 are locked so that the joint connector 25 is fixed to the side wall 29.

Next, a method of connecting the electronic unit 23 of the electric connection box 21 will be described.

As shown in FIG. 2, the electronic unit 23 is inserted into the fitting portion 27, and the flexible locking frame 59 is inserted into the side wall 43. Further, when the electronic unit 23 is pressed toward the connection box main body 5, the flexible locking frame 59 bends, gets over the locking projection 45, and is inserted into the locking hole 57. Thereby, the electronic unit 23 is connected to the electric connection box 2.
1 mechanically. In this connection, since the connection box side connector portion 35 and the electronic unit side connector portion 49 do not fit together, the electronic unit 23 can be easily inserted and fitted into the fitting portion 27. Also, the electronic unit 2
3 is provided with the connection box side connector portion 35 and the side wall 29.
And is positioned in the gap 75 between them. Further, in this state, the connection box side connector portion 35 and the electronic unit side connector portion 49 are arranged adjacent to and substantially parallel to each other.

Next, the joint connector 25 is fixed to the electronic unit 23 and the electric connection box so as to cover the connection box side connector portion 35 and the electronic unit side connector portion 49.
That is, the side walls 63 and 63 are positioned outside the side wall 29, one of the side walls 65 is inserted into the groove 53, and the other is positioned outside the side wall 29. In this state, the female terminal fitting 67 is inserted into the terminal accommodating chambers 37 and 71 of the connection box side connector section 35 and the electronic unit side connector section, and fitted with the male terminal sections 39 and 73.

Further, the side walls 63, 63 are slightly bent so that the locking projection 47 is inserted into the locking hole 69, and the joint connector 2
5 is connected to the electric connection box 21 and the electronic unit 23, and electrically connects the electronic unit 23 and the electric connection box 21.

According to this embodiment, since the electronic unit 23 is mechanically connected to the connection box body 7 and then electrically connected to the electric connection box 21 by the joint connector 25, the force required for each connection work is small. Nari, electrical junction box 2
This facilitates coupling of the electronic unit 23 to the electronic unit 1.

In this embodiment, the male terminals 39 and 73 are connected to the connectors on the electrical junction box 21 and the electronic unit 23 side.
And an example in which a female terminal fitting 67 is provided in the joint connector 25 is shown. However, a female terminal part is provided in the connector part on the electric connection box 21 and the electronic unit 23 side, and a male terminal fitting is provided in the joint connector 25. May be provided.

The configuration of the joint connector may be other than the shape of the joint connector of the above embodiment.

Further, the electronic unit 23 is connected to the electric connection box 2.
The structure mechanically coupled to the first member may be a structure other than the above embodiment.

[0029]

As described above, according to the structure for connecting the electronic unit to the electric junction box according to the present invention, the joint connector for electrically connecting the electronic unit side connector and the junction box side connector is provided. Therefore, an excellent effect that the electronic unit can be easily coupled to the electric junction box is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an electric junction box and an electronic unit to which a structure for coupling an electronic unit to an electric junction box according to the present invention is applied.

FIG. 2 is a cross-sectional view showing a connection state of an electronic unit to an electric connection box.

FIG. 3 is a perspective view showing an electric junction box and an electronic unit to which a conventional coupling structure is applied.

FIG. 4 is a cross-sectional view showing a conventional connection state of an electronic unit to an electric junction box.

[Explanation of symbols]

 5 Connection Box Body 21 Electric Connection Box 23 Electronic Unit 25 Joint Connector 35 Connection Box Connector 41 Connection Box Side Engagement 49 Electronic Unit Side Connector 55 Electronic Unit Side Engagement

Claims (1)

(57) [Scope of request for utility model registration] 1. A connection box side connector portion provided in a connection box main body and housing body side terminals respectively, an electronic unit side connector portion provided in an electronic unit and housing unit side terminals, and a connection box main body A connection box main body side engaging portion, and an electronic unit side engaging portion that engages with the connection box main body side engaging portion and mechanically couples a separate electronic unit to the connection box main body. A connection structure for connecting an electronic unit to an electric connection box for connecting the connection box side connector portion and the electronic unit side connector portion, wherein the connection box body side engagement portion and the electronic unit side engagement portion are associated with each other. In a state where the electronic unit is mechanically coupled to the connection box main body, a joint terminal for electrically connecting the main body side terminal of the connection box side connector portion and the unit side terminal of the electronic unit side connector portion is connected. Have A connection structure of an electronic unit to an electric connection box, wherein a joint connector is provided.