JPH0216498Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disconnector, and particularly to improvements in a fixed contact of a disconnector.

As shown in FIG. 1, the disconnector has a movable contact 2 pivoted on one end of a rotatable operating lever 1
is electrically connected to the conductor 7a, horizontally moved and slidably engaged with the fixed contact 3, which is spaced apart from the movable contact 2 and electrically connected to the conductor 7;
It is a circuit breaker. Note that 1a and 3a are insulating supports similar to the operating lever 1. Furthermore, the illustrated disconnector is for high voltage use and has a large rounded shape as a whole to prevent short-circuit discharge due to electric field concentration. Conventionally, the fixed contact 3 in this disconnector has a structure as shown in FIG. 2 or 3.

That is, the structure shown in FIG.
A pair of ring contacts 5, 5a are fixed coaxially to the base 4 of the 2-ring contact 5 through a mounting flange 11 and bolts 12, and these are covered with a case 6 and the end of the conductor 7 is inserted into one of the ring contacts 5 to make a connection. It will be done. 13 is a spring for tightening the ring contact 5. Then, the movable contact 2 moves back and forth facing the conductor 7, and comes into contact with the other ring contact 5a.

According to this structure, since the conductor 7 is inserted last and assembled, the ring contact 5 for energizing the conductor becomes an essential component. Therefore, the number of components of the fixed contact 3 increases, and on the other hand, the end of the conductor 7 inserted into the ring contact 5 must be specially processed, which inevitably becomes economically expensive. Furthermore, ring contact 5
There is an inconvenience that it takes time to adjust the centering of the conductor 7 so that it fits well and makes contact with the conductor 7.

Therefore, in the structure shown in FIG.
are formed and overlapped, thereby eliminating the need for connection between the conductor 7 and the ring contact 5. In such a structure, the number of parts is reduced compared to the structure shown in FIG. 2, and the processing of the conductor 7 is easy and inexpensive. However, the connection between the conductor 7 and the base 4 becomes a rigid body, and adjustment is difficult if there is a dimensional error or the like.

In view of the above circumstances, the present invention not only reduces the number of parts, but also has a fixed contact that does not require centering adjustment when connecting conductors and does not require expensive special processing on the conductors. , provides an economical disconnector.

An embodiment of the present invention will be described below with reference to FIGS. 4 and 5. FIG. 4 shows a longitudinal section similar to FIGS. 2 and 3, and FIG. 5 shows the ends of the conductors. In the figure, the same reference numerals are used for the same components as in FIGS. 2 and 3, and since they are the same as those in the conventional example, their explanation will be omitted.

Thus, in the present invention, a flexible plate 8 is fixed to the base 4 with bolts 9 or the like. The end of the conductor 7 is connected to the center of the flexible plate 8 with a bolt 10 or the like. The flexible plate 8 is made of, for example, an annealed copper plate, has a constant thickness, and can be laminated by increasing or decreasing the number of the plates as appropriate.

Further, the dimensions may be adjusted by shifting or tilting the conductor 7 back and forth, up and down, left and right, or, if the dimensions of the conductor 7 are short, the number of laminated flexible plates 8 is appropriately increased and joined together.

According to the present invention described above, since the flexible plate 8 is attached and fixed to the base 4 of the fixed contact 3 in a stackable manner and the conductor 7 is fixed to the flexible plate 8, the flexible plate 8 can be moved vertically and horizontally. By shifting or increasing or decreasing the number of sheets, it is possible to absorb dimensional errors in the front and rear, top, bottom, left and right directions, inclination, or length direction of the conductor 7. Furthermore, since the conductor 7 can be economically processed by simply fixing the flexible plate 8 to its terminal, a simple structure and a very low cost disconnector can be obtained, so that it is practical. It has the effect of enriching people, etc.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional examples, Figure 1 is a front view of the disconnector, Figures 2 and 3 are longitudinal sectional views showing two examples of section A in Figure 1, and Figure 4 is the present invention. FIG. 5 is a longitudinal sectional view of a fixed contact according to the present invention, and FIG. 5 is a perspective view of a conductor terminal according to the present invention. 1... Operating lever, 2... Movable contact, 3
...Fixed contact, 5...Ring contact,
7...Conductor, 8...Flexible plate.

Claims (1)

[Scope of utility model registration request] In a disconnector in which a movable contact pivotally supported at one end of a rotatable operating lever horizontally moves and slides into engagement with a fixed contact spaced apart from the movable contact, the fixed contact 3
At least one flexible plate 8 is attached to the end of the conductor 7 at
At the same time, the flexible plate 8 is made to face the movable contact 2, and the conductor 7 can be fixed to the fixed contact 3 by moving and adjusting the flexible plate 8 back and forth, up and down, right and left, or diagonally. A disconnector featuring: