JP2001339825A - Bus bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the installing workability of a bus bar inserted into an insulating plate afterward. SOLUTION: The bus bar is formed by stamping a conductive plate in accordance with the shape of an appropriate circuit and bending specified portions thereof. Aside from bus bars automatically secured on the insulating plate, the bus bar is secured on the insulating plate in a specified position by inserting it afterward. The bus bar inserted afterward is provided with a holding tab facing upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bus bar, and more particularly to a bus bar fixed on an insulating plate and accommodated in an electric junction box. This is to improve workability.

[0002]

2. Description of the Related Art As shown in FIG. 5A, a bus bar of this type is formed by punching a flat conductive plate 1 along a circuit shape indicated by cross-hatched lines in the figure and then bending required ends thereof. As a result, a bus bar 2 having a tab 2a is formed as shown in FIG. After the bus bar 2 is formed, as shown in FIG. 6, the bus bar 2 is automatically placed on the insulating plate 3 and fixed by caulking, and at the same time, is divided at the connecting portion for each circuit.

If the number of bus bars arranged on one insulating plate is increased in order to reduce the number of laminations, when the tabs of the bus bar are expanded, a circuit that does not punch through due to interference occurs. Therefore, as shown in FIG.
There is a case where the bus bar 4 formed by punching is inserted later on the insulating plate. Such a post-insertion bus bar 4 needs to be gripped by a worker and placed at a required position on the insulating plate 3. At that time, a tab 4a provided on the post-introduced bus bar 4
Must be inserted into the terminal holes 3a of the insulating plate 3.

[0004]

SUMMARY OF THE INVENTION The post-insertion busbar 4 described above.
As shown in FIG. 7 (A), when all the tabs 4a are downward, there is no place to grip the post-insert bus bar. In addition, there is a problem that the work of positioning and fixing the post-inserted bus bar 4 at a required position of the insulating plate 3 cannot be easily performed. Similarly, as shown in FIG. 7 (B), even if there is an upward tab 4b in the rear bus bar 4, the downward tab 4a
If it is not in the vicinity, the operation of inserting the tab 4a into the hole 3a of the insulating plate 3 cannot be performed easily, and there is a problem that the workability is poor.

The present invention has been made in view of the above problems, and has as its object to improve the workability of attaching a post-inserted bus bar to an insulating plate.

[0006]

In order to solve the above-mentioned problems, the present invention relates to a bus bar fixed on an insulating plate, wherein the bus bar is formed by punching a conductive plate into a circuit shape and then bending a required portion. Aside from the bus bar which is formed by processing and is automatically fixed on the insulating plate, the bus bar is fixed at a required position on the insulating plate in a rear insertion manner, and the rear inserting bus bar is provided with an upward gripping tab. A bus bar is provided.

In the post-insertion bus bar provided with the grip tabs, all the electrical connection tabs formed on the post-insertion bus bar are projected downward in the opposite direction to the grip tabs. Alternatively, when the tab for the electrical connection in the vertical direction is provided, but the tab for the electrical connection is not provided in the vicinity of the downward electrical connection tab, the upward grip is provided in the vicinity of the downward tab. Tab is provided.

As described above, if the grip tab is provided, the operator can hold the grip tab and place the post-insert bus bar on the insulating plate. The downward electrical connection tab can be easily inserted into the terminal hole of the insulating plate, and the workability can be improved.

Further, the gripping tab can be used as an optional electrical connection tab.

Further, the gripping tab may have a shape in which a groove for pressure contact is provided from the tip. With this configuration, it is possible to easily press-connect to a tab or a wire of a terminal of the optional circuit.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a rear insertion bus bar 10 according to the first embodiment. The rear insertion bus bar 10 is provided with tabs 10b and 10c for downward electrical connection on both sides of the horizontal plate portion 10a, but is not provided with upward tabs.

The rear insertion bus bar 10 is provided with an upward holding tab 10 at an intermediate position between the downward tabs 10b and 10c.
d is protruding. A groove 10d-1 for pressing is provided at the upper end of the gripping tab 10d.

As shown in FIG. 2A, the post-insert bus bar 10 provided with the gripping tabs 10d as described above, the operator grips the gripping tabs 10d from above the insulating plate 3.
While inserting the tabs 10 b and 10 c into the terminal holes 3 a of the insulating plate 3, as shown in FIG.
It is placed at a predetermined position on the insulating plate 3.

As shown in FIG. 3, when an optional circuit is required, the tab 20d of the terminal 20 of the optional circuit is pressed into the groove 10d-1 to form a tab for electrical connection. Can be used as

FIG. 4 shows a second embodiment. The rearward insertion bus bar 10 'of the second embodiment is provided with an upward tab 10b' and a downward tab 10c 'at both ends of the horizontal plate portion 10a'. The rear insertion bus bar 10 ′ has an upward grip tab 1 at a position close to the downward tab 10 c ′.
0d 'is provided.

When the post-insert bus bar 10 'is placed on the insulating plate, if the gripping tab 10d' is gripped, the downward tab 10c 'can be easily inserted into the terminal hole of the insulating plate. At this time, the terminal holes can be inserted into the tabs 10c 'with high precision by keeping the balance up and down.

[0017]

As is apparent from the above description, according to the present invention, since the post-inserting bus bar is provided with the gripping tab,
The post-insertion bus bar can be easily placed at a required position on the insulating plate, and workability can be improved. Further, the gripping tab can be used as an electrical connection tab at the time of an option, and is of great practical value.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a post-insert bus bar according to a first embodiment of the present invention.

FIGS. 2A and 2B are schematic diagrams showing a state where the post-insertion bus bar is placed on an insulating plate.

FIG. 3 is a schematic diagram showing a state in which a terminal of an optional circuit is connected to a gripping tab provided on the post-insertion bus bar.

FIG. 4 is a perspective view of a post-insertion bus bar according to the second embodiment.

FIGS. 5A and 5B are schematic diagrams showing a bus bar forming process.

FIG. 6 is a schematic diagram showing a state where a bus bar is attached to an insulating plate.

FIGS. 7A and 7B are perspective views showing a conventional post-insertion bus bar.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 After insertion bus bar 10a Horizontal plate part 10b, 10c Tab for electric connection 10d Tab for gripping 10d-1 Groove 20 Terminal for options

Continuing from the front page (72) Inventor Yuki Saito 1-14 Nishisuehirocho, Yokkaichi-shi, Mie Sumitomo Wiring Systems, Ltd. (72) Inventor Norifumi Kobayashi 1-14 Nishisuehirocho, Yokkaichi-shi, Mie Sumitomo Electric F-term (reference) in Soho Co., Ltd. 5G361 BA04 BB01 BB03 5G365 AA01 AD06

Claims (4)

[Claims] 1. A bus bar fixed on an insulating plate, wherein the bus bar is formed by punching a conductive plate into a circuit shape and then bending a required portion thereof, and is automatically fixed on the insulating plate. A bus bar, which is fixed at a required position on an insulating plate separately from the bus bar, and provided with an upwardly-facing grip tab. 2. The bus bar according to claim 1, wherein all of the electrical connection tabs provided on the post-insertion bus bar face downwards opposite to the gripping tabs. 3. The bus bar according to claim 1, wherein the grip tab is provided at a position apart from the upward electrical connection tab and close to the downward electrical connection tab. 4. The bus bar according to claim 1, wherein the grip tab also functions as an optional electrical connection tab.