JP2604523Y2 - 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 an electric connection box used for a wire harness for a vehicle.

[0002]

2. Description of the Related Art An electric junction box used for a wire harness for an automobile is formed by laminating insulating plates each having a bus bar constituting a circuit, and housing the insulating plates in a case. The busbar is formed by pressing a metal plate such as copper or brass,
It has a tab terminal formed by bending its end. FIG. 5 is a perspective view illustrating an example of a circuit structure used for the electric junction box. In this circuit structure, several layers of insulating plates 1 to which a bus bar 3 is attached are laminated, and a tab terminal 4 and a press contact terminal 5 of the bus bar are taken out on the upper surface thereof. The tab terminal 4 is a flat plate, and another component or terminal is fitted therein. The press contact terminal 5 has a U-slit, and the electric wire 6 is press-connected thereto.

[0003]

However, the electric junction box using the above-described circuit structure has the following problems. That is: 1) Optimum pressure welding cannot be performed because the height of each pressure contact terminal is different due to bending of a bus bar or an insulating plate. 2) After the crimping, the electric wire comes off from the crimping terminal due to the bending of the bus bar or the insulating plate. 3) The tip of the wire contacts another bus bar, causing unnecessary circuit conduction.

[0004]

SUMMARY OF THE INVENTION The present invention provides an electric junction box which solves the above-mentioned problems. The present invention provides an electric junction box in which an insulating plate to which a bus bar is assembled is laminated on a surface of a laminated body. An insulating plate for fixing a pressure contact terminal having a through hole through which the raised pressure contact terminal penetrates is disposed, a fixing rod is provided on the insulating plate for fixing the pressure contact terminal, and the fixing rod is formed in a through hole formed in a laminate. insert, the pressure contact terminal fixing insulating plate secured to the laminate surface, the pressure-contacting terminals on the piezoelectric contact terminal fixing insulating plate
And an electric wire is connected to the terminal . As described above, a fixing rod is provided on the insulating plate for fixing a pressure contact terminal having a through hole through which the pressure contact terminal penetrates, while a hole through which the rod is penetrated is provided on the laminate, and the fixing rod is penetrated. By inserting into the holes, the insulating plate for fixing the press contact terminal is fixed to the surface of the laminate. By doing so, the insulation displacement plate for fixing the insulation displacement terminal can be firmly fixed to the surface of the laminate, preventing the bus bars and the insulation plate from bending, making the insulation displacement terminal height uniform, and optimally performing insulation displacement connection of electric wires. Can be In addition, since there is no conductor other than the wire and the crimp terminal on the insulating plate for fixing the crimp terminal, even if the tip of the wire hangs, it does not contact other bus bars to cause unnecessary circuit conduction. .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 is an exploded perspective view of one embodiment of a circuit structure used for an electric junction box according to the present invention. The reference numerals in the figure are the same as those in FIG. 5 used for the description of the prior art. On the insulating plate 8 for fixing the press contact terminals, two round rod-shaped welding bosses 10 made of resin are integrally formed as fixing rods. The bottom 7 has a through hole 15 through which the press contact terminal 5 penetrates. The laminated body is provided with a through hole 11 having a circular cross section into which the welding boss 10 is inserted. The assembly of this circuit structure is performed as follows. 1) First, two welding bosses 1 of the insulating plate 8 for fixing the press contact terminals.
0 is inserted into the through hole 11, and the tip of the penetrated welding boss 10 is welded to the back surface of the lowermost insulating plate 1, thereby fixing the insulating plate 8 for fixing the press contact terminal to the laminate. 2) Next, the electric wire 6 is connected to the press contact terminal 5. 3) Next, the wire holding plate 9 is attached to the insulating plate 8 for fixing the insulation displacement terminal.
Put on top of. FIG. 2 is a perspective view showing a state where the circuit structure is assembled. FIGS. 3A and 3B are a partial front view and a cross-sectional view taken along the line AA, respectively, showing a state in which the electric wire 6 is connected to the press contact terminal 5. The laminated body constituting the circuit structure assembled in this manner is held flat so that the insulating plate 1 and the bus bar 3 are flattened by the insulating plate 8 for fixing the pressure contact terminal and the welding boss 10 and does not bend. The height of the terminals becomes uniform, and the optimal pressure welding connection of the electric wire is obtained.

FIG. 4 is an exploded perspective view of another embodiment of the circuit structure used in the electric junction box according to the present invention. In this embodiment, a rectangular rod 12 made of resin is integrally formed on the insulating plate 8 for fixing the press contact terminal as a fixing rod, and a locking projection 13 is provided at the tip thereof. On the other hand, a through-hole 14 having a square cross section for inserting the square bar 12 is provided in the laminate. In this case, the insulation plate 8 for fixing the insulation displacement terminal is attached by inserting the square rod 12 into the through hole 1.
4 and insert the locking projection 13 at the tip into the lowermost insulating plate 1.
It is carried out by locking.

The insulating plate for fixing the pressure contact terminal does not need to have a frame around it as in the above embodiment. The shape of the fixing rod provided on the insulating plate for fixing the pressure contact terminal and the shape of the rod are not limited. It goes without saying that the mechanism for inserting the through-hole into the laminated body and fixing it to the insulating plate is not limited to the above embodiment.

[0008]

According to the present invention, as described above, according to the present invention, a press contact terminal having a through hole through which a press contact terminal raised from a bus bar penetrates is provided on a surface of a laminate formed by laminating insulating plates having bus bars attached thereto. A fixing insulating plate is arranged, a fixing rod is provided on the insulating plate for fixing the press contact terminal, and the fixing rod is inserted into a through hole formed in the laminate, and the insulating plate for fixing the press contact terminal is placed on the surface of the laminate. On the insulating plate for fixing the insulation displacement terminal
Since the wire was connected to the insulation displacement terminal, the insulation plate for fixing the insulation displacement terminal could be firmly fixed to the surface of the laminate, and the height of the insulation displacement terminal was made uniform by preventing bending of the bus bar and the insulation plate, The crimp connection of the wire can be optimized, and there is no conductor other than the wire and the crimp terminal on the insulation plate for fixing the crimp terminal. There is an excellent effect that unnecessary circuit continuity does not occur upon contact with the substrate.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of one embodiment of a circuit structure used for an electric junction box according to the present invention.

FIG. 2 is a perspective view showing a state where the circuit structure is assembled.

FIGS. 3 (a) and 3 (b) are partial front views showing a state in which an electric wire is connected to a press-connecting terminal of the circuit structure, and FIGS.
It is A sectional drawing.

FIG. 4 is an exploded perspective view of another embodiment of the circuit structure used for the electric junction box according to the present invention.

FIG. 5 is a perspective view of a circuit structure used for a conventional electric junction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulation plate 3 Bus bar 4 Tab terminal 5 Pressure contact terminal 6 Electric wire 7 Bottom 8 Insulation plate for fixing pressure contact terminal 9 Electric wire holding plate 10 Welding boss 11, 14 Through hole 12 Square rod 13 Locking projection 15 Through hole

Claims (1)

(57) [Scope of request for utility model registration] An insulating plate for fixing a press contact terminal having a through hole through which a press contact terminal raised from a bus bar penetrates is disposed on a surface of a laminate formed by laminating insulating plates each having a bus bar attached thereto. A fixing rod is provided on the fixing insulating plate, the fixing rod is inserted into a through hole formed in the laminate, and the insulation displacement plate for fixing the pressure contact terminal is fixed to the surface of the laminate.
An electric connection box, wherein an electric wire is connected to the press contact terminal on a regular insulating plate .