Buffer mechanism of circuit breaker
A buffer mechanism and circuit breaker technology, applied in contact operating mechanism, circuit, contact vibration/impact damping, etc., can solve the problems of unstable characteristics and insufficient mechanical life of circuit breakers, achieve stable product characteristics, and solve mechanical life problems. Insufficiency, the effect of solving characteristic instability
Inactive Publication Date: 2017-02-01
JIANGSU RUGAO HIGH VOLTAGE ELECTRIC APP
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a circuit breaker buffer mechanism, which can solve the problems of insufficient mechanical life and unstable characteristics of the circuit breaker
Method used
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Embodiment Construction
[0018] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.
[0019] Such as figure 1 , figure 2 and image 3 A circuit breaker buffer mechanism is shown, and the buffer structure is installed in the circuit breaker.
[0020] circuit breaker includes
[0021] A base 1, the base 1 has a cavity for installing components, and the bottom end of the base 1 is open, and three phase columns 2 distributed along the long axis of the base 1 are installed on the upper end of the base 1 .
[0022] A transmission arm 3 extending along the long axis of the base 1. Three pairs of transmission rods 4 connected to the phase columns 2 are connected to the two ends of the transmission arm 3, and the transmission rods 4 and the transmission arm 3 are hinged. , the transmission rod 4 is installed in the base 1 through the mounting seat 5, and a throu...
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The invention relates to a buffer mechanism of a circuit breaker. The buffer mechanism is mounted in the circuit breaker; the circuit breaker comprises a pedestal and a transmission arm, three pairs of transmission rods are connected to the two ends of transmission arm, each pair of transmission rods is in one to one correspondence with a phase column, the transmission rods are hinged to the transmission arm, and are mounted in the pedestal via a mount, the buffer mechanism is mounted in a cavity of the pedestal and comprises a reset unit and a buffer unit, the reset unit comprises a pair of return springs arranged symmetrically, the buffer unit comprises a hydraulic buffer mounted on the transmission arm, and the top end of a piston rod moves reciprocally along the transmission arm to abut again or move far from the soleplate in the end portion. The buffer mechanism has the advantages that the hydraulic buffer is used for buffering, the piston rod moves in the opposite direction to carry out buffering when the hydraulic buffer collides with the soleplate to implement buffering, and damage, caused by hard collision when the transmission arm collides with a rubber gasket traditionally, on parts can be avoided.
Description
technical field [0001] The invention relates to a circuit breaker, in particular to a circuit breaker buffer mechanism. Background technique [0002] A circuit breaker (English name: circuit-breaker, circuit breaker) refers to a device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time switchgear. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fuse-type switch. Combina...
Claims
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IPC IPC(8): H01H3/60
CPCH01H3/605
Inventor 陈红宁赵斌吴宝辉吴桂敏尹真真
Owner JIANGSU RUGAO HIGH VOLTAGE ELECTRIC APP