Operating mechanism of load switch-fuse combined electric appliance
A combination of electrical appliances and operating mechanism technology, applied in the direction of electric switches, high-voltage air circuit breakers, high-voltage/high-current switches, etc., can solve the problems of large switching parameters, many transmission parts, complex operating mechanism structure, etc., easy to achieve dimensional accuracy Guarantee, avoid positional deviation, good structural rigidity
Pending Publication Date: 2021-04-09
MURGE ELECTRIC CO LTD
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Problems solved by technology
[0002] The SF6 air bag type three-position load switch completes the switch closing, opening, and grounding by rotating the three-position knife switch. A high-voltage fuse is connected in series in the primary circuit. When a short-circuit current occurs, the fuse blows instantly. At this time, the device needs to be quickly disconnected. However, the existing operating mechanism has complex structure, many transmission parts, poor output characteristics of four-link transmission, short service life, large switch parameter jump and many other problems. The present invention effectively solves these problems
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[0030] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.
[0031] All directional indications (such as up, down, left, right, front, back, horizontal, vertical...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement situation between the various components in a certain posture etc., if the specific posture changes, the directional indication also changes accordingly.
[0032] Such as Figure 1-8 As shown, an operating mechanism of a load switch-fuse combined electrical appliance includes a frame 49, a three-position cam transmission device 40 for closing and opening the ground, a spring energy storage device 41, a closing and opening button transmission device 42, and...
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The invention discloses an operating mechanism of a load switch-fuse combined electric appliance, The mechanism comprises a rack, a closing, opening and grounding three-station cam transmission device, a spring energy storage device, a closing and opening button transmission device, a tripping transmission device, a tripping power device and a grounding energy storage device. The grounding energy storage device, the spring energy storage device and the tripping power device carry out energy storage, and the closing and opening button transmission device carries out closing and opening operation. Switching operation among three stations of closing, opening and grounding of the three-station switch is achieved through the closing, opening and grounding three-station cam transmission device, the spring energy storage device, the closing and opening button transmission device, the tripping transmission device, the tripping power device and the grounding energy storage device, the structure is compact, operation is easy and convenient, and safety and reliability are achieved; and a machine frame is a stand column clamping plate structure, the whole machine is good in structural rigidity and convenient to assemble, the size precision is easy to guarantee, all key transmission devices are wrapped in the machine frame, and the two ends are supported and positioned.
Description
technical field [0001] The invention belongs to the field of electrical equipment, and relates to an operating mechanism of a load switch-fuse combination electric appliance. Background technique [0002] The SF6 air bag type three-position load switch completes the switch closing, opening, and grounding by rotating the three-position knife switch. A high-voltage fuse is connected in series in the primary circuit. When a short-circuit current occurs, the fuse blows instantly. At this time, the device needs to be quickly disconnected. However, there are many problems such as complex structure of the existing operating mechanism, many transmission parts, poor output characteristics of the four-link transmission, short service life, and large switch parameter jumps. The present invention effectively solves these problems. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention provides an operating mechanism of a load s...
Claims
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IPC IPC(8): H01H33/42H01H33/52H01H33/48H01H9/10H01H85/02H01H85/30
CPCH01H9/104H01H33/42H01H33/48H01H33/52H01H85/0241H01H85/30
Inventor 温科木林森郑刘亮徐文
Owner MURGE ELECTRIC CO LTD
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