Rotary switch moving contact assembly for physically isolating electric arc
A technology of physical partition and rotary switch, applied in electrical switches, electrical components, circuits, etc., can solve the problems of limited arc extinguishing effect, poor arc extinguishing effect, complex structure, etc., and achieve the effect of improving arc extinguishing effect.
Pending Publication Date: 2022-04-15
ZHEJIANG BENYI ELECTRICAL CO LTD
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Problems solved by technology
At present, the conventional arc extinguishing method in the rotary isolating switch is to set up an arc extinguishing chamber, but the arc extinguishing effect is not good.
The applicant has previously applied for a number of arc extinguishing structures for rotary isolating switches, including the arrangement of permanent magnets disclosed in patent 201820047807.4, and the arc is extinguished by using the magnetic field formed by the permanent magnets to pull the arc. The limitation of the setting position leads to limited arc extinguishing effect; in the patent CN202020221756.X, the arc is introduced into the arc extinguishing chamber by setting the arc extinguishing chamber and setting the permanent magnet. complex structure
Method used
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are to distinguish two entities with the same name but different parameters or parameters that are not the same, see "first" and "second" It is only for the convenience of expression, and should not be construed as a limitation on the embodiments of the present invention, which will not be described one by one in the subsequent embodiments.
[0030] The terms of direction and position mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom" ", "side", etc., are only referring to the direction or position of the drawings. Therefore, the terms used in direction and position are ...
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The invention belongs to the technical field of rotary switches, and particularly relates to a rotary switch moving contact assembly for physically isolating electric arcs, which comprises a moving contact rotating frame and a moving contact arranged on the moving contact rotating frame and in linkage fit with the moving contact rotating frame, comprising a moving contact rotating frame and a moving contact which is arranged on the moving contact rotating frame and is in linkage fit with the moving contact rotating frame, the moving contact rotating frame is provided with a physical partition structure used for disconnecting an electric arc, and the physical partition structure comprises at least one group of insulating chucks. One group of insulating chucks consists of two oppositely arranged insulating chucks which are at least partially insulated; the two oppositely arranged insulating chucks have a first state in which the two insulating chucks are separated to form a gap between the two insulating chucks for the static contact to rotate, and a second state in which the two insulating chucks are combined to isolate a breaking arc. According to the rotary switch, a physical arc isolation mode of isolating the arc between the moving contact and the static contact through the insulating chuck is innovatively provided in the rotary switch, and compared with an existing arc extinguishing mode, the arc extinguishing effect is remarkably improved.
Description
technical field [0001] The invention belongs to the technical field of rotary switches, and in particular relates to a rotary switch moving contact assembly for physically blocking electric arcs. Background technique [0002] The rotary isolating switch in the prior art is usually formed by stacking several switch units. Each switch unit includes a housing, a moving contact, a static contact and a rotating frame for the moving contact. The moving contact is installed on the moving contact. The rotating frame, the moving contact rotating frame is rotated and set on the shell, the static contact is fixed on the shell and is located on the rotation track of the moving contact, when the moving contact rotating frame rotates, the moving contact and the static contact are connected or disconnected , constitute the closing and opening of the circuit. [0003] Arc is a gas discharge phenomenon, the instantaneous spark generated by the current passing through some insulating medium ...
Claims
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IPC IPC(8): H01H19/10H01H19/02H01H9/32
CPCH01H19/10H01H9/32H01H19/02
Inventor 黄建勇黄南杰
Owner ZHEJIANG BENYI ELECTRICAL CO LTD