JPS63124313A - Auxiliary arc chute for breaker - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electric vehicles, and particularly to an auxiliary arc chute suitable for a breaker box in which a plurality of circuit breakers are housed.

[Conventional technology]

Conventional auxiliary arc chutes, which can be said to be of the continuous fixed type, are made with different mounting pitches to accommodate each breaker, which increases the number of non-common and non-common parts, resulting in productivity problems for manufacturers. Another disadvantage was that the user side did not take into account the need to prepare various maintenance parts.

(Utility Model Application No. 57-158140, Utility Model Application No. 58-6653
(Publication No. 3) [Problems to be Solved by the Invention] The above-mentioned conventional technology does not take into consideration productivity and maintainability, and there is a problem in that the manufacturer needs to prepare various parts. Furthermore, there is a problem in that the user side also needs to keep non-common parts for maintenance in stock.

An object of the present invention is to increase the commonality and commonality of parts.

[Means for solving problems]

The above purpose is to create an arc chute unit consisting of the minimum dimensions of each type of insert for each breaker, connect each unit, and secure the required number of units with connecting plates on the upper and lower sides of the unit type arc chute. This is achieved by

Further, by allowing the upper connecting plate to serve as a hook portion and the lower connecting plate to serve as a receiving portion, the above object can be achieved without increasing the number of parts.

Furthermore, when the pitch dimensions of the breaker units are different, the above objective can be achieved by providing spacing pieces in the wide portions between the units since the pitch dimension is the minimum size.

[Effect]

The unit type auxiliary arc chute has all the functions of an auxiliary arc chute, so it can be used alone. A so-called continuous type auxiliary arc chute can be manufactured by preparing three continuous plates, which are indispensable members for three continuous installations. Even if the number of connected units increases, a connected type can be manufactured by increasing the number of controls used as auxiliary arc chutes, so the number of non-common or non-common parts will not increase.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. A breaker with inner fitting size 11, inner fitting size 12
A circuit breaker I consisting of the following is attached to a box frame body (not shown) with optimum dimensions L1 and Lz, respectively, and 6 units ♂ are pierced. Since lx>It, Lt>Lz. On the unit's auxiliary arc chute, a frame 1 made of resin molding and a wall body 2 made of resin molding are constructed with threaded bolts 2G. On the inside of the wall body 2, a grid 2b is arranged closer to the breaker 6.7, and a barrier 2a is housed on the opposite side. The wall body 2 has a two-part structure with a pair of left and right parts as shown in FIG. 2, and is assembled with threaded bolts 2C.

In this way, each of the auxiliary arc chutes 1 independently functions as a single arc chute. Now, as shown in FIGS. 1 and 2, the unit type auxiliary arc chute has an upper connection plate 3 at the top, and a lower connection plate 4 in close contact with the pitch L1. Moreover, the spacing pieces 5 are connected to the pitch L2 via the spacing pieces 5, and are fastened to the frame 1 with screw bolts 3a and 4a, respectively.
is a mixture of dust such as earth and sand, abrasion powder of axles, rails, etc. from the gap of Lz-L1=1g to the inside of the box (not shown),
It is a cold piece to protect from rainwater infiltration. Naturally, various sizes of 18 dimensions are available depending on the model of the breaker to be assembled.

The spacing piece 5 is fastened to the upper connecting plate 3 with a threaded bolt 3b, and to the lower connecting plate 4 with a threaded bolt 4b. In addition to connecting the auxiliary arc chutes of each unit type, the connecting plates have hook parts 3c, 3c on the upper connecting plate 3 that support the entire weight, and a box body (not shown) on the lower connecting plate 4. Receptacles 4C, 4C are provided which engage with fasteners (see Figure 3) to hold them.

According to this embodiment, even if the number of auxiliary arc chute units is increased to two, two, four, etc.

Furthermore, even if the pitch changes, there is no need to change the basic form of the unit, and it remains common and shared. Each unit can be provided with connecting plates on the top and bottom, and each connecting plate can also have the upper part serving as a hook part and the lower part serving as a receiving part. Furthermore, even if the pitch changes uncontrollably, it can be accommodated by supporting the spacing pieces above and below the continuous plates.

[Effects of the Invention] According to the present invention, even if the number of connected units increases, the basic parts of the unit type auxiliary arc chute do not change, so parts are common and common, and productivity and maintainability are improved. improves.

[Brief explanation of the drawing]

1 is a top view of an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a side view of FIG. 2. ↓... Auxiliary arc chute, 1... Frame, 2... Wall, 3... Upper connecting plate, 4... Lower connecting plate, 5...
・Interval piece, Dan,! ...breaker.

Claims (1)

[Scope of Claims] 1. In a bow breaker box device that stores a plurality of bow breakers, an arc chute corresponding to each bow breaker is provided, and an arc chute is provided on an upper side and a lower side of the arc chute, respectively. An auxiliary arc chute for a shiya disconnector characterized by the provision of a continuous plate. 2. The upper connecting plate is provided with a pair of left and right hook parts that support the weight of the arc chute, and the lower connecting plate is provided with a pair of left and right receiving parts that engage with the fasteners of the box body. An auxiliary arc chute for a shingle breaker according to claim 1, characterized in that: 3. In contrast to the non-uniform pitches in the width direction of the capacitors stored in the capacitor box, the narrow pitches are adjacent to each other in the width direction of the arc chute, and the pitches are spaced in the wide part. 2. The auxiliary arc chute for a shear breaker according to claim 1, further comprising a spacer piece, and an upper side and a lower side of said spacer piece are fixed to said connecting plate.