Structure apparatus capable of improving contact breaking capacity
A technology of breaking capacity and contacts, which is applied in the direction of emergency protection devices, circuit breaker contacts, circuit breaker components, etc., can solve the problems of product structure and volume increase, increase manufacturing cost, reduce product electrical life, etc., and achieve reduction Small product size and structure, long electrical life, and the effect of reducing power consumption
Active Publication Date: 2016-10-26
李蕊名
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Problems solved by technology
However, when breaking the short-circuit current, it is necessary to have a sufficiently large contact opening distance to make the arc longer, which is convenient for arc extinguishing, and increasing the contact opening distance leads to a corresponding increase in the product structure and volume, and the product has a long opening and closing stroke. The speed is correspondingly slowed down, the power consumption of the mechanism that provides power is correspondingly increased, and the electrical life of the product is reduced at the same time, which greatly increases the manufacturing cost of the product; and the effect is not obvious, so it cannot meet the needs of today's society for control and protection switches. Requirements for the use of low-voltage electrical products such as special contactors and motor protectors in special working conditions
Method used
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[0023] As shown in the figure, the present invention includes a structural main body 13, a moving contact 3, a repulsive arc striking bridge 4, a static contact 5, a magnetic blower 7, a contact support 8, a contact spring 9, a spring bracket 10, a reset device, The yoke 14, the shrapnel 22, the movable contact 3 are arranged on the upper end of the contact support 8, the repulsive arc striking bridge 4 is arranged on the upper end of the movable contact 3, and the spring support 10 is arranged in the contact support 8 so as to slide up and down. The lower reset contact spring 9 is connected, and the upper end of the spring support 10 is connected with the moving contact 3; the upper part of the yoke 14 is fixed with the lower end of the contact support member 8.
[0024] The middle part of the contact support member 8 is placed in the vertical hole in the middle part of the structural body 13, and the static contact 5 is arranged on the structural body 13 below the movable con...
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A structure apparatus capable of improving a contact breaking capacity belongs to the electrical contact system technology field and the invention especially relates to the structure apparatus capable of improving the contact breaking capacity. By using the structure apparatus capable of improving the contact breaking capacity, an opening speed is fast and an arc extinguishing effect is good. The apparatus comprises a structure main body, a moving contact, a repulsion striking arc bridge, a static contact, magnetic blowout, a contact support component, a contact spring, a spring support, a reset device, a magnet yoke and a spring sheet. The structure is characterized in that the moving contact is arranged on an upper end of the contact support component; the repulsion striking arc bridge is arranged on an upper end of the moving contact; the spring support can be slidingly arranged in the contact support component in an up and down mode and is connected to a lower reset contact spring; an upper end of the spring support is connected to the moving contact; and an upper portion of the magnet yoke is fixed to a lower end of the contact support component.
Description
technical field [0001] The invention belongs to the technical field of electrical contact systems, and in particular relates to a structural device for improving the breaking capacity of a contact. Background technique [0002] In low-voltage electrical products such as control and protection switches, special contactors for special working conditions, and motor protectors, they are used for frequent operations and have high requirements for electrical life and short-circuit breaking capacity. The arc generated during breaking will directly damage the contacts. Affecting the electrical life of the product, the double breakpoint clapping structure is often used. In the process of breaking the rated current, a faster breaking speed and high-efficiency arc extinguishing ability are required, which can achieve the purpose of frequent operation and higher reliability. However, when breaking the short-circuit current, it is necessary to have a sufficiently large contact opening di...
Claims
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Login to View More IPC IPC(8): H01H73/18H01H73/04H01H9/44
CPCH01H9/44H01H73/045H01H73/18
Inventor 陈阅文张洪松乔军
Owner 李蕊名