JPH0141164Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a power supply busbar useful as a power supply and distribution means for power supply circuits and circuit boards inside electronic devices, etc., and particularly has a connection structure that enables stable and reliable connection with the outside. Regarding power busbars.

As shown in Fig. 1, this type of power bus has a conductor 1 made of non-ferrous metal such as copper or aluminum with a screw hole 2 at the connection part, and an external connection terminal 4 is attached to the screw hole 2 with a screw 3. An attempt is made to establish an electrical connection between the two. However, the conductor 1 is often made of a soft material as described above, which makes it difficult to process the screw hole 2, and the fastening strength is generally weak. may damage the parts, making refastening incomplete or impossible. In the case of incomplete fastening, there is a risk that the terminal 4 may fall off or short-circuit with other parts, etc., and the increase in contact resistance at the connection may have a negative effect on the device and the connection There is a risk of damaging the power supply bus due to heat generation etc.

In order to solve the above-mentioned problem, the present invention involves fitting a high-strength conductive connecting part different from the material of the conductor into the part of the conductor of the power supply bus that corresponds to the connecting part, and attaching a terminal for external connection to this connecting part. The present invention provides a new power supply bus devised so that it can be fastened with the power supply bus, and thereby a stable and reliable connection state can be obtained even after repeated fastening processes.

The drawings show an embodiment thereof, and in FIGS. 2 and 3, 5 is a simple hole provided at the connection part of the conductor 1, and the connection is formed in the shape of a threaded part so as to be located below this hole 5. The component 6 is fitted from the side surface of the conductor 1 perpendicularly to the hole 5 by means such as press-fitting. The connecting part 6 has a screw hole 7 in a position that matches the hole 5.
, the external connection terminal 4 can be firmly connected and fastened to the screw hole 7 of this connection part 6 through the hole 5 with the screw 3, and the screw hole will not be damaged by repeated fastening as in the conventional case. This makes it possible to completely prevent incomplete connections caused by such problems and to perform proper external connection processing. The connecting part 6 is preferably formed of a conductive member having high strength and corrosion resistance, such as stainless steel, which is different from the material of the conductor 1, and as shown in FIG. 3, an appropriate detent 9 is provided at the end thereof. Furthermore, it is preferable to provide an appropriate flat portion 8 to facilitate positioning of the other hole 5 and the screw hole 7 when press-fitting or inserting into the hole 10. If necessary, such a power supply bus bar can be constructed so that the entire body is coated with an exterior insulation coating 11, except for the connecting end faces, as shown in FIG. Further, as shown in FIG. 4, it is also possible to construct a structure in which the above-mentioned connecting parts 6 are fitted onto a plurality of conductors 1, and the conductors 1 are laminated together while insulating the conductors 1, and then subjected to an exterior insulation coating treatment 12.

In addition to the structure shown in FIG. 3, the connecting parts have a taper 13 as shown in FIG.
A screw hole 14 may be inserted into the conductor 1 by driving it from the side surface of the conductor 1 as shown in FIG.
It is also possible to adopt a method in which the terminal 4 is provided with a part 6, which is vertically press-fitted into a hole larger than the hole 5 provided at the connection part of the conductor 1, and the terminal 4 is directly fastened to this part 15 with the screw 3.

The power supply bus of the present invention has holes for attaching external connection terminals in the parts related to the conductor connections,
A high-strength, corrosion-resistant conductive connecting part is fitted from the side of the conductor located at the lower part of the hole in a direction perpendicular to the hole, and the connecting part is connected to a threaded hole matching the hole and an end thereof. The conductor and the external connection terminal are electrically connected by a screw inserted into the hole and fastened to a screw hole of the connection part.
Therefore, according to the present invention, instead of attaching external connection terminals etc. to the screw holes of the conductor as in the past, a separate connection part with high strength is fitted onto the conductor as appropriate, and the terminal is attached to this connection part. Since the conductor is configured to have a fastening strength such as , it has the advantage that a good external connection can be made stably and reliably even if repeated fastening processes are performed without damaging the conductor.
Therefore, we have created a power supply that can perform extremely reliable external connection processing, completely preventing short circuit accidents caused by heat generation at the connection part or contact with other parts, etc. due to increased contact resistance due to incomplete connections as in the past. Busbars can be provided.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the external connection by the power bus of a conventional structure, FIG. 2 is a partial perspective view showing the state of external connection of the power bus according to an embodiment of the present invention, and FIG. 3 is the power bus of FIG. 2. A perspective view of connecting parts used for
FIG. 4 is a perspective explanatory diagram of a power supply bus in which a plurality of conductors are laminated according to another embodiment of the present invention, and FIGS. 5 and 6 show other examples of connecting parts used in the present invention. FIG. 1... Conductor, 3... Screw, 4... External connection terminal, 5... Hole, 6... Connection parts, 7... Screw hole,
9... Rotation stopper, 11, 12... Exterior insulation coating part.

Claims (1)

[Scope of utility model registration request] A hole for attaching an external connection terminal is provided in a part related to the connection part of the conductor, and a high-strength corrosion-resistant conductor is fitted from the side of the conductor located below the hole in a direction perpendicular to the hole. The conductor is provided with a screw hole that matches the hole and a rotation stopper formed at the end thereof, and the conductor is inserted into the hole and fastened to the screw hole of the connection component. and the external connection terminal.