JP2576612Y2 - Busbar connection device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bus bar connecting device connected to the power supply side of a fuse box interposed between an electric device and a power supply, for example, to supply electric devices installed in an automobile. It is about.

[0002]

2. Description of the Related Art As a conventional bus bar connecting device of this type, there is one having a structure as shown in FIGS. That is, reference numeral 1 denotes a fuse box main body which is a kind of an electric connection box, and a plurality of unshown fuse boxes are inserted into the fuse box main body 1. A bus bar 2 commonly connected to each fuse is integrally fixed to the fuse box body 1. Reference numeral 3 denotes a bracket for fitting and holding the fuse box body 1, and a stud 4 for connecting a power terminal is implanted in the bracket. When the fuse box body 1 is fitted into the bracket 3, the implantation bolt 4 is inserted into the through hole 5 provided in the bus bar 2, and then the power terminal 6 is inserted into the bolt 4. , A nut 7 is screwed onto the bolt 4 and the power supply terminal 6 is fastened to the bus bar 2 to make a desired electrical connection.

[0003]

However, in the bus bar connecting device having such a structure, since a relatively large load current flows through the bus bar 2, the connecting portion between the bus bar 2 and the volts 4 and the power supply terminal 6 is formed. Heat is generated and the stud 4 is also heated.

Therefore, in order to increase the heat resistance of the bracket 3 in which the stud 4 is implanted, conventionally, as a resin material for molding the bracket 3 with resin, 66 is used.
Nylon resin is used, but this 66 nylon resin has a problem that the cost is high and the product cost is greatly increased. Also, the molded product (bracket 3) made of 66 nylon resin has problems such as poor dimensional stability and easy occurrence of trouble when the bracket 3 is installed on another product.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem. A bracket for fitting and holding an electric junction box body having a bus bar is stuck with bolts for bus bar connection. Bolt holding member, and a main body receiving member that couples the holding member and that fits and supports the electric junction box main body. The bolt holding member has excellent heat resistance, for example, 66 nylon resin. In addition, the main body receiving member is formed of, for example, polypropylene resin, which is excellent in dimensional stability and economical efficiency, and provides a bus bar connecting device excellent in overall heat resistance, economical efficiency, and dimensional stability. It is in.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the drawings.

Reference numeral 11 denotes a resin-made electric connection box main body (fuse box) into which a plurality of fuses (not shown) are inserted, as described in the conventional example. A bus bar 12 commonly connected to the fuses is integrally fixed. The bus bar 12 has a connection hole 14 for connecting the power terminal 13. 15 is a main body receiving member for fitting and holding the electric connection box main body 11;
Is formed of a polypropylene resin having excellent dimensional stability. A bolt holding member 17 to which a stud 16 is fixed is integrally connected to one end of the main body receiving member 15 by a fitting means. The bolt 19 and the main body receiving member 15 form a bracket 19. Reference numeral 18 denotes a nut screwed to the stud 16.

The operation of the present embodiment has been described above. Next, the operation will be described. The bracket 19 includes a main body receiving member 15 made of polypropylene resin and a bolt holding member 17 made of 66 nylon resin. In this embodiment, a stud 16 for connecting a power terminal is implanted and fixed to the bolt holding member 17.

Therefore, the bus bar 12 and the power supply terminal 13 are fastened by the studs 16 and the nuts 18 to support the studs 16 even when the studs 16 are heated to a high temperature by the action of the load current when used. Since the bolt holding member 17 is made of a heat-resistant 66 nylon resin, the bolt holding member 17 is not thermally deformed even if the bolt 16 is heated.
Further, since the main body receiving member 15 is formed by using a polypropylene resin having low cost and good dimensional stability, the economic efficiency is greatly improved, and the main body receiving member 17 is provided with the electric connection box main body 11. This is characterized in that the workability of fitting the main body or the workability of fixing the main body receiving member 17 to another object is improved.

[0010]

[Effects of the Invention] As described above, the present invention provides a bus bar 1
The bracket 19 of the electric connection box body 11 fitted holding having a 2, bolt holding member which is molded by a resin having excellent heat resistance, and crowded the bolt 16 to fasten the power supply terminal 13 to the bus bar 12 planted 17, because it is the busbar connection apparatus composed of a main body receiving member 15 is fitted holding the electrical junction box body 11 with coupling the bolt holding member 17, according to this, bolt 16 is heated by the load current Even if the bolt 16 is heated, the bolt holding member 17 for supporting the stud 16 is formed of a resin having heat resistance. Therefore, even if the bolt 16 is heated, the bolt holding member 17 is thermally deformed. Never. Further, since the main body receiving member 15 is molded using a resin having low cost and good dimensional stability, the economic efficiency is greatly improved, and the electric connection box main body 11 is attached to the main body receiving member 17. Workability of fitting, or body receiving member 17 thereof
The effect of improving the mounting workability of fixing the to another object is obtained.

[Brief description of the drawings]

FIG. 1 is a structural explanatory perspective view showing a conventional bus bar connection device.

FIG. 2 is a cross-sectional structural explanatory view showing a conventional bus bar connection device.

FIG. 3 is a perspective view illustrating the structure of the bus bar connection device according to the embodiment of the present invention.

FIG. 4 is a sectional structural explanatory view showing the bus bar connection device of the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Electric junction box main body 12 ... Bus bar 13 ... Power supply terminal 14 ... Connection hole 15 ... Main body receiving member 16 ... Stud bolt 17 ... Bolt holding member 18 ... Nut 19 ... Bracket

Claims (1)

(57) [Scope of request for utility model registration] An electric junction box having a bus bar (12) A bracket (19) for fitting and holding a main body (11) is formed of resin having excellent heat resistance , and said bus bar (1)
Fitting a bolt holding member that crowded bolt (16) planted to fasten the power supply terminal (13) 2) (17), an electrical connection box body (11) with coupling the bolt holding member (17) A bus bar connection device, comprising: a main body receiving member (15) for holding.