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Novel high-current reed-type switch contact structure

一种开关触点、簧片式的技术，应用在新型大电流簧片式开关触点结构领域，能够解决电触点烧毁、无法承载电荷负载、没办法加入灭弧装置等问题，达到增大电荷承载能力的效果

Inactive Publication Date: 2015-07-15
敬德强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these arc extinguishing methods have good arc extinguishing effects, in some small reed switches, especially those with limited volume, it is impossible to add traditional arc extinguishing methods due to the limitation of switch structure and volume. device
[0003] At present, reed switches are mainly used in small relays, magnetic reed switches, micro switches, travel switches and other products in small switches. These switches cannot bear the load because the switch contacts adopt the traditional switch electrical contact design structure. Larger charge load, in practical applications, most of the damage is caused by the electrical contacts being stuck or burned due to arc ablation and unable to conduct

Method used

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  • Novel high-current reed-type switch contact structure
  • Novel high-current reed-type switch contact structure
  • Novel high-current reed-type switch contact structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: figure 1 Shown is a new type of high-current reed switch contact structure, which is a schematic diagram of the reed switch normally open state. It consists of at least one set of elastic reed electrodes (11, 12) or at least one fixed electrode (12) and one elastic reed electrode (11); the electrodes (11, 12) are made of conductive materials, One of the end faces overlaps with each other, and there are contacts (13, 14) on the opposite surface of the overlapped ends. The reed electrode (11,) has a protruding arc discharge device (16) on the side of the contact end, and the reed electrode (12) ) There is a protruding arc discharge device (162) on the side of the contact end; there is a certain gap between the reed electrode contacts (13, 14); the frontal distance (L1) between the electrode contacts (13, 14) and the electrode The distance (L2) between the side shoulders (15, 152) and the arc discharge device shoulders (17, 172) is determined according to the...

Embodiment 2

[0019] Example 2: figure 2 Shown is a new type of high-current reed switch contact structure, which is a schematic diagram of the reed switch normally open state. It consists of at least one set of elastic reed electrodes (21, 22) or at least one fixed electrode (22) and one elastic reed electrode (21); the electrodes (21, 22) are made of conductive materials, One of the end faces overlaps with each other, and there are contacts (23, 24) on the opposite surface of the overlapped ends, wherein the reed electrode (22) has a protruding arc discharge device (26) on the side of the contact end; the reed electrode contact There is a certain gap between (23, 24); the frontal distance (L1) between the electrode contacts (23, 24) and the distance (L2) between the electrode side shoulder (25) and the arc discharge device shoulder (27) Press the switch The relevant working parameters such as the specific breaking current voltage and breakdown voltage are determined, and the frontal d...

Embodiment 3

[0021] Example 3: image 3 Shown is a new type of high current reed switch contact structure, which is a schematic diagram of the reed switch normally closed state. It consists of at least one set of elastic reed electrodes (31, 32) or at least one fixed electrode (32 or 31) and one elastic reed electrode (31 or 32); the reed electrodes (31, 32 ) is made of conductive material, one end face of which is overlapped, and there are contacts (33, 34) on the opposite surface of the overlapped ends, wherein the reed type electrode (31 or 32) has a protruding arc discharge device on the side of the contact end ( 36); the end faces of the reed electrodes (31, 32) overlap each other, and the two electrode contacts (33, 34) are tightly closed.

[0022] The description of the switching process of the two electrodes ( 31 , 32 ) between the closed state and the open state and the movement process of the arc between the contacts is similar to the opening and closing process of the first e...

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Abstract

The invention aims to provide a novel high-current reed-type switch contact structure which is simple in structure and can provide higher load current. The novel high-current reed-type switch contact structure comprises at least one set of elastic reed-type electrodes or at least one fixed electrode and an elastic reed-type electrode, wherein the reed-type electrodes are made from conductive materials; contacts are arranged on the opposite surfaces at the overlapped end of the reed-type electrodes; electric arc discharge devices are arranged on the side surfaces of the end parts, provided with the contacts, of the reed-type electrodes. A reed-type switch of the structure adopts a specially designed contact structure, the electric arc discharge devices are additionally arranged on the basis of a conventional switch contact structure, and electric arc generated in the on and off moment of the switch contacts is quickly transferred to the electric arc discharge devices of the contacts, so that the ablation of the electric arc to a contact surface of the electric contacts is reduced, the contacts cannot be adhered easily, and the current carrying and on-off capability of the reed-type switch is greatly improved.

Description

technical field [0001] The invention relates to an electric contact structure of a key component in a power or electronic switch used in various switches, in particular to a new type of high-current reed switch contact structure. Background technique [0002] The reed switch contact structure of the prior art is designed and produced with a simple planar structure. When it is applied to a relatively large load, when the on-off voltage exceeds 10V and the current exceeds 0.1A, the gap between the contacts will be A cloud of extremely hot, bright, and conductive gas is produced, called an arc. The arc will severely ablate the contact surface of the electrical contact, resulting in contact adhesion that cannot be disconnected, or even completely burning the switch contact. In order to improve the on-off capability of the switch, various chemical structures of electrical contacts are used to improve the arc-ablation resistance of the electrical contacts, thereby improving the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/30H01H1/06
CPCH01H1/26H01H9/46H01H1/06H01H1/66H01H33/12H01H36/0006
Inventor 敬德强
Owner 敬德强
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