Direct-current isolating switch
A technology of DC isolating switch and contact mechanism, which is applied in high-voltage/high-current switch, electric switch, high-voltage air circuit breaker, etc., and can solve the problem of uncontrollable disconnection of the isolating switch
Inactive Publication Date: 2020-04-10
沈阳斯沃电器有限公司
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Problems solved by technology
[0004] The purpose of the embodiments of the present invention is to provide a DC isolating switch, aiming to solve the problem that the disconnection of the isolating switch cannot be controlled if the control circuit fails
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0034] The specific implementation of the present invention will be described in detail below in conjunction with specific embodiments.
[0035] Such as figure 1 As shown, a DC isolating switch provided in an embodiment of the present invention includes:
[0036] The contact mechanism is used for the circuit connection of the power terminal and the load terminal;
[0037] The transmission mechanism is connected and arranged on both sides of the contact mechanism, and is used to control the circuit connection of the contact mechanism;
[0038] The energy storage mechanism is arranged on the trans...
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The invention is applicable to the technical field of low-voltage electric appliances, and provides a direct-current isolating switch. The direct-current isolating switch comprises: a contact mechanism used for being in circuit communication with a power supply wiring terminal and a load wiring terminal; transmission mechanisms connected with and arranged at two sides of the contact mechanism andused for controlling circuit communication of the contact mechanism; and an energy storage mechanism arranged on the transmission mechanisms in a linkage mode and used for controlling the communication state of the switching circuit of the contact mechanism through the transmission mechanisms. The transmission mechanism is operated and driven to drive the contact mechanism to operate, at the sametime, the energy storage mechanism can continuously keep an energy storage state during driving; and moreover, after the remote control line is failed, the driving force of the energy storage mechanism is changed from the driving controlled by the remote control circuit into the energy storage of the energy storage mechanism as the driving, so that the contact mechanism is driven by the transmission mechanisms to continuously run for a period, and the failure of an instruction for remotely controlling the opening of the contact mechanism due to the problem of the remote control circuit is avoided.
Description
technical field [0001] The invention belongs to the technical field of low-voltage electrical appliances, and in particular relates to a DC isolating switch. Background technique [0002] The DC isolating switch is a device to prevent AC and DC short circuits. It is connected with an isolation transformer between the power input terminal of the AC motor power supply switch cabinet and the three-phase AC power input line, and the three-phase AC power input line is isolated from the The primary winding of the transformer is connected, and the secondary winding of the isolation transformer is connected to the power inlet end of the AC motor power supply switch cabinet. [0003] The high-current DC isolating switches on the market now use the electric operating mechanism to remotely control the disconnection of the disconnector. If the control circuit fails, the disconnection of the disconnector cannot be controlled, resulting in the inability to cut off the lower-end load, whic...
Claims
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IPC IPC(8): H01H33/28H01H33/36H01H33/42H01H33/04
CPCH01H33/04H01H33/28H01H33/36H01H33/42
Inventor 苏国臣白涛解浩刘延苏张平
Owner 沈阳斯沃电器有限公司