JPH0247164B2 - DENKISETSUZOKUBAKOTOWAIYAAHAANESUNOKUMITSUKEHOHO - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of assembling an electrical connection box and a wire harness.

[Conventional technology]

The electrical connection box and the wire harness are assembled, for example, as shown in FIGS. 5 and 6.

The electrical connection box is constructed by laminating a first layer wiring board 2, a second layer wiring board 3, a third layer wiring board 4, and a fourth layer wiring board 5 on which busbars are arranged, and then forming a fifth layer busbar 6 on the back side. After attaching the cover 7 and inverting the laminate of the first to fourth layer wiring boards 2 to 5 to prevent it from collapsing, the cover body 1 is assembled to the laminate and a blade type fuse is attached to the cover body 1. 10, circuit breaker 11, relay 12, and other electrical functional parts are mounted and assembled.

In the wire harness manufacturing process and automobile assembly process, the female connector housing 8 (sometimes a male connector housing) formed at the predetermined positions of the cover body 1 and back cover 7 of the electrical junction box is used to attach the wires after crimping. The male connector 9 (sometimes a female connector) of the wire harness 18 with the terminal 14 assembled thereto is connected to assemble the electrical connection box and the wire harness.

However, in the above method, the cover body 1,
Since the female connector housing 8 formed on the back cover 7 is connected to the male connector 9 with the terminals 14 assembled after the wires have been crimped, the number of connector parts in the wire harness is increased.

Furthermore, since the male connector 9 is coupled to the female connector housing 8, connectors with the same number of poles cannot be used, and the space occupied by the connector portion of the electrical junction box is increased. If connectors with the same number of poles are used, a connector (new connector) with a structure to prevent incorrect fitting is required.

In this way, in the conventional method, the molds for molding the cover body 1 and the back cover 7 are complicated due to the large number of connector parts in the wire harness, and the wire harness and electrical connections are expensive and heavy. There were problems such as having to manufacture boxes. Additionally, this has caused a problem in that the manufacturing and assembly time in the wiring harness and electrical connection box manufacturing and assembly process becomes long.

[Problem that the invention seeks to solve]

An object of the present invention is to provide an electrical connection box and a wire harness assembly method that can reduce the number of connector parts and shorten the manufacturing time in the wire harness manufacturing process and the assembly (assembly) time with the electrical connection box. It is to be.

[Means for solving problems]

In order to achieve the above object, the present invention includes a temporary electrical junction box assembly process in which a temporary fixing member of the same shape and size as an electrical junction box is assembled to a stack of a plurality of wiring boards, and a connector of the electrical junction box is coupled. A wire harness manufacturing process in which a connector housing part into which a terminal after crimping the electric wire is directly inserted is integrally provided in the part, and the terminal with the crimped electric wire is inserted into the connector housing part to connect the connector, and the temporary electrical connection. The method is characterized by an assembling step of removing the temporary fixing members assembled in the box assembling step and assembling an electrical connection box in which the terminals to which the electric wires were crimped in the wire harness manufacturing step are connected to the connector.

In the present invention, the electrical connection box does not only mean the combination of the cover body and the back cover, but also means the cover body or the back cover.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show an example of an electrical connection box used in the assembly method of the present invention. In this example,
The cover body 1, the first layer wiring board 2, the second layer wiring board 3, the third layer wiring board 4, and the fourth layer wiring board 5 are the same as the electrical connection box used in the conventional method (see Figure 5). However, a different back cover 7 is used. In addition, a temporary fixing member having the same shape and size as this back cover 7 (this is a dummy back cover, and the connector housing portion 15 described later is not formed) 1
7 is used.

As shown in detail in FIGS. 2 to 4, the back cover 7 is formed with a connector housing portion 15 into which a terminal 14 with an electric wire 13 crimped is inserted into a portion to be connected to the connector in the wire harness manufacturing process. There is.

As shown in FIG. 4, a locking piece 16 is provided inside the connector housing portion 15 to allow the terminal 14 to enter and to prevent the terminal 14 from coming out once entered.

When the terminal 14 is inserted into the connector housing part 15, the terminal 14 is locked with the locking piece 16 and is prevented from coming off, and the terminal 14 is also inserted into the fourth layer wiring board 5.
It is electrically connected to the busbar tab 5a of.

By integrally forming the connector housing part 15 with the back cover 7 in this way, the male connector 9 can be omitted in the wire harness manufacturing process (if the female connector is attached to the wire harness, the female connector can be omitted). Furthermore, there is no need to connect (fit) an electric wire with a terminal to the male connector 9 and connect the male connector 9 to the female connector housing 8.

Next, an example of the assembly method of the present invention will be explained using the above electrical connection box.

In the temporary electrical junction box assembly process, the bus bars of each layer are punched out and the terminals are bent, and the bus bars are placed on the wiring boards of each layer to assemble the first layer wiring board 2 to the fourth layer wiring board 5. 1-layer wiring board 2nd to 4th
Layered wiring boards 5 are laminated, and then a temporary fixing member (dummy back cover) 17 is fitted to prevent the laminated body from collapsing.The laminated body is turned over and the cover body 1 is assembled. After that, attach the blade type fuse 10, circuit breaker 11, and relay 1 to the cover body 1.
Equipped with 2nd grade electrical functional parts.

In the wire harness manufacturing process, the terminal 14 with the electric wire 13 crimped is inserted into the connector housing portion 15 of the back cover 7 and connected to the connector.

In the assembly process, the temporary fixing members 17 attached in the temporary electrical connection box assembly process are removed, and the back cover 7 is attached to the cover body 1.

The removed temporary fixing member 17 is returned to the temporary electrical junction box assembly process and used again.

In addition, although the case where the connector housing part 15 was formed in the back cover 7 was shown in the said Example, it may be formed in the cover main body 1. In this case, a temporary fixing member having the same shape and size as the cover body 1 is used. Further, the connector housing portion 15 may be formed on the cover body 1 and the back cover 7, and in this case, a temporary fixing member having the same shape and size as the cover body 1 and the back cover 7 is used.

〔Effect of the invention〕

As explained above, according to the present invention, an electrical junction box (cover main body 1, back cover 7, cover main body 1, Since the back cover 7) is used, the male (female) connector can be omitted in the wire harness manufacturing process.
Therefore, manufacturing time can be shortened.

Additionally, since male (female) connectors are not used, the depth of the electrical junction box is reduced accordingly, saving space for assembly.

In addition, the number of parts can be reduced, there is no need for new connectors with a structure to prevent misfitting, and it is easier to process the mold for molding the electrical connection box, reducing costs. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is an exploded perspective view of an electrical connection box used in the present invention, FIG. 2 is a perspective view with the back cover reversed, and FIG.
Figure 4 is an explanatory diagram showing the relationship between the connector housing part and electric wires, Figure 5 is an exploded perspective view of an electrical junction box used in the conventional method, and Figure 6 shows the connector housing of the conventional electrical junction box. FIG. 3 is an explanatory diagram showing the relationship with a female connector. DESCRIPTION OF SYMBOLS 1... Cover body, 2-5... Wiring board, 7... Back cover, 13... Electric wire, 14... Terminal, 15... Connector housing part.

Claims (1)

[Scope of Claims] 1. A temporary electrical junction box assembly process in which a temporary fixing member of the same shape and size as the electrical junction box is assembled to a stack of multiple wiring boards, and a process of assembling a temporary electrical junction box in which a temporary fixing member of the same shape and size as the electrical junction box is assembled, and a process of attaching electric wires to a part of the electrical junction box where a connector is connected. A wire harness manufacturing process in which a connector housing part into which the tightened terminals are directly inserted is integrally provided, and the terminals with the wires crimped are inserted into the connector housing part to connect the connectors; and the temporary electrical junction box assembly process. An assembly of an electrical junction box and a wire harness, comprising an assembly step of removing the assembled temporary fixing members and assembling the electrical junction box in which the terminals to which the electric wires were crimped in the wire harness manufacturing process are connected to the connectors. Attachment method.