Back plate of fuse type disconnecting switch
The technology of a knife fuse switch and a back plate is applied in the field of switch accessories, which can solve the problems of inconvenient installation of the knife fuse switch, easy breakdown of contacts, burning of the human body, etc., and achieves the effects of simple structure, good fixing effect, and space saving.
Inactive Publication Date: 2016-07-20
TIANJIN BOJIU ELECTROMECHANICAL EQUIP
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Problems solved by technology
[0002] Knife fuse switch is the simplest and most widely used low-voltage electrical appliance among hand-controlled electrical appliances. It is a single control switch for closing and disconnecting. Contact, so as to realize the closure of the circuit. When the handle is dialed down, the dynamic and static contacts will be disconnected, and the circuit will be disconnected. During use, when the load power is too large, the current flowing through the fuse will cause the fuse to heat up. The fuse plays the role of protecting the circuit. After troubleshooting, replace the fuse and continue to use it. It is generally used in the main line of the lighting circuit. The knife fuse switch of the prior art meets the needs of the market to a certain extent, but The installation of the existing knife fuse switch is very inconvenient, and the contacts are easy to break down and generate arcs, which will cause burns to the human body
Method used
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[0012] For further illustrating the present invention, now cooperate with accompanying drawing to elaborate:
[0013] Such as figure 1 As shown, the backboard of the knife fuse switch includes a plate cover 1, a slide plate 3, a spring 4, a fuse holder 5 and an indicator light 6, and the indicator light is connected to the fuse holder circuit and connected to the plate cover Fixed connection, the fuse holder is fixedly connected to the plate cover, a slide plate and a spring are provided on the side of the plate cover that is in contact with the fuse holder, the slide plate is slid along the plate cover, and one end of the slide plate is connected to the fuse plate through the spring. The plate cover is fixedly connected, and a visible window 2 is arranged on the plate cover. The position of the visible window corresponds to the installation position of the slide plate. to the position of the fixed fuse on the fuse holder.
[0014] The above is only a preferred embodiment of...
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The invention provides a back plate of a fuse type disconnecting switch. The back plate comprises a plate cover, a sliding plate, a spring, a fuse wire fixing frame and an indicator lamp, wherein the indicator lamp is in line connection with the fuse wire fixing frame, and is fixedly connected with the plate cover; the fuse wire fixing frame is fixedly connected with the plate cover; the sliding plate and the spring are arranged on one side, in contact with the fuse wire fixing frame, on the plate cover; the sliding plate is glidingly arranged along the plate cover; and one end of the sliding plate is fixedly connected with the plate cover through the spring. The back plate of the fuse type disconnecting switch is simple in structure, convenient to use, capable of well fixing the fuse wires and saving space, and capable of accurately locating the fuse wires without opening the back plate.
Description
technical field [0001] The invention relates to a switch accessory, in particular to a knife fuse switch backboard. Background technique [0002] Knife fuse switch is the simplest and most widely used low-voltage electrical appliance among hand-controlled electrical appliances. It is a single control switch for closing and disconnecting. Contact, so as to realize the closure of the circuit. When the handle is dialed down, the dynamic and static contacts will be disconnected, and the circuit will be disconnected. During use, when the load power is too large, the current flowing through the fuse will cause the fuse to heat up. The fuse plays the role of protecting the circuit. After troubleshooting, replace the fuse and continue to use it. It is generally used in the main line of the lighting circuit. The knife fuse switch of the prior art meets the needs of the market to a certain extent, but The installation of the existing knife fuse switch is very inconvenient, and the co...
Claims
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IPC IPC(8): H01H9/10H01H9/02
Inventor 宗立民雷正香刘志远
Owner TIANJIN BOJIU ELECTROMECHANICAL EQUIP