JPS5825567Y2 - Busbar connection device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for connecting busbars to each other, and is devised to facilitate busbar connection in a relay box or fuse box that connects an automobile wiring harness, in particular.

In the conventional connection method, as shown in FIG.
A method of inserting two bus bars 1, 1 respectively and using their elasticity to clamp or crimp them together, or as shown in FIG. A bus bar 1 is interposed between two wiring boards 3, and both ends of the bus bar 1 are soldered 5.

However, since the former uses a separate component called the connection terminal 2, it requires a considerable amount of installation space in a narrow relay box.
Not only is the connection work cumbersome, but the unstable surface contact between the connection terminals and the busbar increases contact resistance, making it easy for the connection to be incomplete.The latter is soldered, so the busbar connection Although it is perfect, there was a complaint that it was time-consuming to manufacture as it required soldering each time.

This idea was created by focusing on the points mentioned above.
The purpose of the present invention is to provide a bus bar connecting device that can be attached to each other with one touch without requiring any work on members such as connection terminals or soldering, and that can maintain a stable connection state.

Next, this invention will be explained based on the drawings. In FIGS. 3 and 4, 6 is a male bus bar, and the tip of the board 6a in the shape of a narrow strip with a rectangular cross section is chamfered 6b to form a truncated cone shape. It is something.

Reference numeral 7 designates a female busbar, in which a triangular tongue-like piece 7b is cut and raised at the end of a base plate 7a that is wider than the male busbar 6, and the cut-and-raised mark is formed as a lower part C that fits into the male busbar 6. When the tongue piece 7b is bent at an appropriate angle, an opening 7d for elastic escape is opened toward the end face of the top of the lower fitting lower C.

That is, the female busbar 7 is provided with an opening 7d for elastic escape facing the lower fitting C, and the tongue-shaped piece 7b, that is, the bottom side of the triangular lower fitting C is formed to be sandwiched between the male busbar 6 and the lower fitting C.

When the male busbar 6 is fitted into the lower fitting C, the two upper corners 6C not only come into line contact 8 with the inner edge of the lower fitting C, that is, the two sides of the triangle, but also The lower surface makes surface contact 9 with the upper surface of the tongue-like piece 7b.

Since there is a chamfer 6b at the tip of the male bus bar 6, it is easy to insert the female bus bar 7 into the lower fitting C, and the opening 7d for elastic relief allows the elasticity of the peripheral edge of the lower fitting C to be improved. Due to the elastic repulsive force of the tongue-shaped piece 7b, the male busbar 6 is strongly pressed and clamped, and the fitting and electrical connection are maintained in a stable state.

In the above, a case has been described in which the fitting opening is formed by cutting and raising the triangular tongue-like piece 7b. 7
The width becomes gradually narrower in the d direction so that it can be pressed against the upper corner 6C of the male bus bar 6, and it can take many shapes such as a triangle, a semicircle, and an ellipse.

As explained above, this device is composed of a male busbar formed into a narrow strip with a rectangular cross section and a female busbar, and a tongue-like piece is cut and raised at the tip of the female busbar to form a male busbar. Since a fitting opening for the bus bar is formed and an opening for elastic escape is provided at the tip of the fitting opening to impart elasticity, manufacturing is easy, and the connection between the two can be made by fitting each other. This can be done with just one touch, and there is no need to use connection terminals or solder as in the past.

In addition, when the male busbar is inserted into the fitting opening, the two upper corners of the male busbar press against the inner edge of the fitting opening and make stable line contact, and the bottom surface of the male busbar has a tongue-like shape. Since it makes surface contact with the upper surface of the connector, a stable electrical connection and mating state can always be maintained.

[Brief explanation of drawings]

Figures 1 and 2 are explanatory diagrams of conventional examples of busbar connections;
FIG. 3 is an explanatory diagram of one embodiment of this invented device, and FIG. 4 is an explanatory diagram of its usage state. 6... Male type bus bar, 7... Female type bus bar, 7b... Tongue piece, 7d... Elastic escape opening.

Claims (1)

[Scope of utility model registration request] It is composed of a male type bus bar formed into a narrow strip shape with a rectangular cross section, and a female type bus bar, and a tongue-like piece is cut and raised in the middle than the male type bus bar at the tip of the female type bus bar to form a male type bus bar. A fitting opening for the busbar is formed, and an opening for elastic escape is formed in the female busbar leading to the fitting opening, so that when the male busbar is inserted into the fitting opening, the upper corner of the male busbar is inserted into the fitting opening. A bus bar connection device characterized in that the male bus bar is in pressure contact with the inner edge of the fitting portion, and the bottom surface of the male bus bar is in pressure contact with the top surface of the tongue.