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Interlocking device for large capacity dual power automatic change-over switch

An automatic transfer switch, dual power supply technology, applied in the direction of electrical switches, circuits, electrical components, etc., can solve the problems of poor working stability and complex structure, and achieve the effect of stable and reliable work.

Pending Publication Date: 2018-01-05
BEIJING MINGRI ELECTRICAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Locking lever and return spring, the structure is relatively complicated, and the working stability is poor

Method used

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  • Interlocking device for large capacity dual power automatic change-over switch
  • Interlocking device for large capacity dual power automatic change-over switch
  • Interlocking device for large capacity dual power automatic change-over switch

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Embodiment Construction

[0038] combine Figure 1 to Figure 6 , the present invention will be further described through specific examples.

[0039] It should be noted that the orientations or positional relationships indicated by the terms "up", "down", and "middle" are based on the orientations or positional relationships shown in the drawings, and the "common power supply" and "backup power supply" are also It is only for the convenience of describing the present invention, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention.

[0040] A large-capacity double power supply automatic transfer switch interlocking device, such as Figure 1 ~ Figure 3 as shown,

[0041] Including common power supply rotating shaft 1, common power supply connecting rod 2, common power extension rod 4, common power supply

[0042] Source driving lever...

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PUM

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Abstract

An interlocking device for a large capacity dual power automatic change-over switch includes a common power supply, a standby power supply rotating shaft, a connecting rod, an extension rod, a pokingrod, a dial hook, a tight hoop and a second interlocking rod, wherein one end of the tight hoop is fixed to the rotating shaft and the connecting rod is hinged to the other end of the tight hoop. Theextension rod is hinged to the other end of the connecting rod, the poking rod is fixed to the other end of the extension rod, the dial hook is fixed to the other end of the poking rod, the connectingrod is divided into three sections, the two ends are half rods, and the middle is connected through a connection rod, the two ends of the connection rod are provided with threads in different rotating directions, and the middle of the connection rod is provided with a length regulator. By adjusting the length regulator, the rotating angle of the poking rod can be adjusted, so that the dial hook at the axial end of the poking rod is in an optimal rotating angle to make the interlocking more reliable. The interlocking device is in a # shape, a spring structure easily subjected to elastic fatigue is not adopted, and the interlocking device is simple and reliable in structure and easy to process. Due to adoption of the second interlocking rod, the interlocking device is under dual interlocking protection and works more stably and more reliably.

Description

technical field [0001] The invention relates to a low-voltage electrical appliance, in particular to a large-capacity double power supply automatic transfer switch interlocking device. Background technique [0002] Dual power automatic transfer switch is a commonly used low-voltage electrical appliance, usually used to switch between two power sources, to ensure that when the common power supply fails or stops supplying power, it can quickly switch to the backup power supply to ensure the normal power supply of the load circuit. This type of transfer switch must ensure that when the load circuit of the common power supply is closed, the load circuit of the backup power supply must be disconnected. In the dual power automatic transfer switch, not only measures are taken in the electrical control circuit to ensure that when one power supply is closed, the other power supply must not be closed, but also a mechanical interlock device must be adopted in the mechanical setting to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/26
Inventor 不公告发明人
Owner BEIJING MINGRI ELECTRICAL EQUIP
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