JP2874137B2 - Connection structure of bent part of flat circuit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector and a connector provided outside a bent portion of a flat circuit body such as a flat wire harness.
Shape holding device
Of flat circuit body for effective use of space inside
It relates to the connection structure of the sections .

[0002]

2. Description of the Related Art FIG. 4 shows a connection structure of a bent portion of a conventional flat circuit body used for an automobile. This structure is obtained by bending a flat circuit body 77 having a plurality of relay boards 75 and 76 on both sides into a substantially U-shape, and
A shape holder 78 made of a synthetic resin is addressed to 7 a, and bent portions 7 are attached to mounting plates 79, 79 projecting up and down of the shape holder 78.
7a, a fixed female connector 80 located outside
A substantially U-shaped fixing tool 81 is fitted into symmetrically positioned relay boards 75 and 76 to fix a flat circuit body 77.

[0005] As shown in FIG. 5 , the shape holder 78 is formed of a substantially U-shaped main body 83 having a plurality of lightweight holes 82.
4, 84 are provided with a pair of mounting plates 79, 79 protruding therefrom. In addition, the relay boards 75 and 76 are provided with a bus bar 88 having a press contact terminal portion 87 connected to the electric wire 86 routed inside the circuit body 85 orthogonal to the electric wire 86, and a terminal portion 88 a of the bus bar 88. Are arranged in the connector section 89. In FIG. 4 , reference numerals 90 and 91 indicate similar connector portions.

The bent portion 77 of the flat circuit body 77
The female connector 80 provided at a is connected to the male connector 93 provided on the engine panel 92 of the automobile.
On the other hand, around the engine panel 92, an electric connection box 96 as shown in FIG. The electric junction box 96
A circuit breaker 98, a relay 99, a fuse 100, and the like are protruded from the front side of the connection box body 97, and an electrical unit (ECU) 101 is connected to the rear side by a connector.
There are many irregularities on the front side of the junction box body 97,
It is impossible to mount the electrical unit 101 inside. Electricity
A plurality of circuit boards (not shown) are provided inside the connection box 96.
Each circuit board is provided with a bus bar as a circuit.
-Has been routed. The electric connection box 96 is, for example, a female connector.
The flat circuit body 77 is connected to the
Connected.

[0005]

[Problems to be solved by the invention] However,
In the conventional structure, due to the recent increase in electronic components,
The number of circuit boards in the air connection box 96 increases,
6 is enlarged in the thickness direction,
The electric connection box 96 attached around the
The problem of further enlargement due to the knit 101
I did In addition, the engine can be
The structure around the control panel 92 becomes complicated,
Due to complications, the assemblability of the electric junction box 96 to the vehicle deteriorates
The problem arises.

[0006] The present invention has been made in view of the above problems, the electrical unit
The complexity of the structure of the engine panel around by the door and electrical junction box
Around engine panel
To reduce the assemblability of electrical units and electrical junction boxes
The purpose is to provide a structure to obtain .

[0007]

In order to achieve the above object, the present invention relates to a flat circuit body having a connector outside a bent portion.
And a shape holder is provided inside the bent portion.
A relay board is connected to the flat circuit body.
In the connection structure of the bent part of the flat circuit body
Housing for housing the electrical unit inside the shape holder
Is formed, and the connector of the electrical unit is connected to the relay base.
It is connected to the connector part of the board.
1). An electrical connection for mounting electrical components on the flat circuit body
A connection board is provided to be connected, and the
The relay board and the electrical connection board are symmetrically arranged.
Is also effective (claim 2).

[0008]

According to the first aspect of the present invention, the inside of the shape holder is provided.
The electrical unit is housed in the dead space of
The mounting unit is removed from the engine panel side, for example.
Achieved space saving and simplified structure around engine panels
Is done. In the configuration of claim 2, the conventional
Thin electric connection board equivalent to air connection box is a flat circuit
Because it is provided integrally with the body, the conventional electric junction box
Removed from the engine panel side, around the engine panel
Space saving and simplification of the structure are achieved.

[0009]

FIG. 1 is an exploded perspective view showing an embodiment of a connection structure of a bent portion of a flat circuit body according to the present invention, and FIG.
FIG. 2 is an AA equivalent cross-sectional view showing an assembled state of No. 1; This structure
Has a relay board 40 on one side and is bent in a substantially U-shape.
A synthetic resin material is provided inside the bent portion 41a of the rat circuit 41.
A box-shaped shape holder 44 is provided , and inside the shape holder 44.
The rectangular housing portion (housing for the electrical unit 42)
(Chamber) 43 is formed.

A vertically long female connector is provided inside the bent portion 41a.
46 is fixed by screws 47. Shape holder 44
On the upper and lower sides, mounting plates 4 for fixing the female connector 46 are provided.
5, 45 are protrudingly provided. The electrical unit 42 is, for example,
Acts as an engine control unit (ECU)
You.

The bottom wall 49 of the shape holder 44 has an electric unit
An insertion opening 50 for the slot 42 is provided. Electric
The connector unit 52 is provided on the upper wall of the mounting unit 42,
The connector 52 is fitted to the upper wall 51 of the shape holder 44.
Of the flat circuit body 41 with respect to the connector 53
An insertion hole 54 is provided. Before and after the electrical unit 42
A pair of locking projections 57, 57 are provided on the lower portions of the outer side walls 56, 56.
Are provided, and opposed inner side walls 55, 55 in the accommodation portion 43.
Are provided with engagement grooves 58, 58 for each locking projection 57.
Have been. Flat rotations are provided on both left and right sides of the shape holder 44.
A groove 36 for positioning and accommodating and protecting the road body 41 is formed.
Have been.

The relay board 4 is provided outside the flat circuit body 41.
0 is provided, and the connector
The tab 53 is provided to bend downward. Relay board
A bus bar 59 is disposed in the vertical direction inside the busbar 40.
The upper terminal 50a of the bar 59 is bent in an inverted U-shape to connect
Is housed in the terminal unit 53. In the middle of busbar 59
Is provided with a press contact terminal 39, and the press contact terminal 39 is
It is connected to the electric wire 66 (FIG. 2) of the road body 41. Connect
The connector 53 is bent in an L-shape to connect the electrical unit 42.
It can be connected to the connector section 52.

A connector 53 is provided above the relay board 40.
And a connector portion 60 is provided to project upward. Ko
The upper terminal 38 of the straight bus bar 38 is provided in the nectar portion 60.
a is accommodated. A bus bar is provided below the relay board 40.
Connectors housing lower terminals 59b, 38b of
Cutter portions 61 and 62 are provided, respectively. Connector
The part 60 is formed, for example, as a roof-side wire harness connection part.
And the connectors 61 and 62 are on the right floor wire harness.
And the connection to the right door wire harness.
To use. Each wire 66 (FIG. 2) of the flat circuit body 41
The branches are connected by the stubs 38 and 59. Relay board 4
The outer surface 35 of 0 is a completely flat surface. relay
The substrate 40 is fixed to the flat circuit body 41 by bonding or the like, and
It is fixed to the shape holder 44 by screwing or the like.

Provided at the bent portion 41a of the flat circuit body 41
For example, the female connector 46 provided on the engine panel side has
A male connector (not shown) is connected. Female connector 46
Inside, a male terminal 64 having a press contact portion 63 as shown in FIG.
The press contact portion 63 is housed in the main body 65 made of an insulating resin.
Is pressed against an electric wire (conductor) 66 routed inside
You.

The shape holder 44 is received through the insertion opening 50.
The electrical unit 42 is inserted into the portion 43 and the locking projection 57
Is engaged with the engagement groove 58, so that the electrical component unit 42 is fixed.
Is determined. The connector 52 of the electrical unit 42 has a plug hole
Projecting from the connector 54 and connected to the connector 53 of the relay board 40
Is done. Thus, the electrical unit 42 is connected to the bus bar 59.
To the electric wire 66 (FIG. 2) via the press contact terminal 39.
And an engine (not shown) through the female connector 46.
Connected to the wiring harness on the other side.

As shown in FIG . 3, the flat circuit body 41 is folded.
Outside of the return portion 37, symmetrically with the relay board 40, the conventional
Functions equivalent to an electrical junction box (relay 68 and fuse 69
Thin electrical connection board 70 having electrical components such as
It is fixed by wearing. The electrical connection board 70 is a shape holder
It is fixed to 44 by screwing or the like. The electrical connection board 70
Similar to the relay board 40, the built-in pressure contact terminal 71
It is connected to the electric wire 66 of the rat circuit body 41. Electrical connection
Connection board 70, relay board 40, electrical unit 42 and female connector
The connector 46 is connected to the connector 46 via an electric wire 66. Electricity
Connection board 70, relay board 40, electrical unit 42, female connector
A multifunctional electrical junction box is configured with the connector 46.

According to this embodiment, the inside of the shape holder 44 is
Of the electrical unit 42 in the dead space of
The thin electrical connection board 70 corresponding to the electrical connection box is flushed.
The electrical unit 42 and the conventional
Electrical junction box is removed from the engine panel side,
Space saving around the gin panel is achieved. Also, thin
Type relay board 40 and thin electrical connection board 70 and thin shape
The bent part 4 of the flat circuit body 41 is
Since the area around 1a is thin and compact,
Easily connect female connector 46 to mating connector on engine panel
Can be connected and has good assemblability to vehicles.

[0018]

【The invention's effect】 As described above, according to the first aspect of the present invention,
The electrical unit in the dead space inside the shape holder.
The electrical unit is, for example, an engine panel
From the engine side, saving space around the engine panel
And simplification of the structure is achieved. In addition, electrical equipment
At the same time as inserting the knit, the electrical unit and relay board
Is connected to the connector, and the electrical unit and flat circuit
Is easily and securely connected, and the flat circuit
Connect the bent connector to the mating connector on the engine panel side, for example.
By connecting to the electrical connector, the electrical unit
Is securely connected to the mating connector via the
Connection work of the electrical unit via the electrical junction box
Becomes unnecessary, and deterioration of the assemblability is eliminated.

According to the second aspect of the present invention,
Thin electrical connection board equivalent to the electrical connection box of
Conventional electric connection box is an example because it is provided integrally with the circuit body
For example, it is removed from the engine panel side,
Space saving and simplification of the structure are achieved. Ma
Also, thin relay board, thin electrical connection board and thin shape
Compensation around the bent part of the flat circuit body
The engine panel side
The connector at the bend can be easily connected to the connector
Deterioration of the assemblability of the connection box is eliminated.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a connection structure of a bent portion of a flat circuit body according to the present invention.

2 is a sectional view corresponding to AA in FIG. 1 showing the assembled state.
It is.

FIG. 3 is a perspective view showing a completed state in which an electric connection board is assembled.
FIG.

FIG. 4 shows a connection structure of a bent portion of a conventional flat circuit body.
FIG.

FIG. 5 is a perspective view showing the shape holder.

FIG. 6 is an exploded perspective view showing a conventional electric junction box.

DESCRIPTION OF SYMBOLS 40 relay board 41 flat circuit body 41a bent portion 42 electrical unit 43 accommodation unit 44 shape holder 46 female connector 52, 53 connector unit 68 relay (electrical component) 69 fuse (electrical component) 70 electrical connection board

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01R 9/07 H01R 23/02 B60R 16/02

Claims (2)

(57) [Claims] A connector is provided outside a bent portion of a flat circuit body.
And a shape holder is provided inside the bent portion.
A relay board is connected to the flat circuit body.
In the connection structure of the bent part of the flat circuit body
Housing for housing the electrical unit inside the shape holder
Is formed, and the connector of the electrical unit is connected to the relay base.
A connection structure for a bent portion of a flat circuit body, which is connected to a connector portion of a board . 2. An electric component is mounted on the flat circuit body.
Electrical connection board is connected and provided, and the shape holder is
The relay board and the electrical connection board are symmetrically arranged with the
The flat circuit body according to claim 1, wherein
Connection structure of the bent part.