Protection relay of manual reset power supply
A manual reset and power protection technology, applied in the direction of electromagnetic release switch, etc., can solve the problems of inconvenient installation, debugging and testing, poor safety and reliability, and large space occupation, so as to achieve simple debugging and testing, simplified production process, and improved production efficiency. Effect
Inactive Publication Date: 2011-03-09
广东威睿电子有限公司
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Problems solved by technology
This kind of product has the shortcomings of large space occupation, complex structure, high cost, low production process, low production efficiency, inconvenient installation, debugging and detection, poor safety and reliability, and it is necessary to improve it.
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[0008] The following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.
[0009] See attached figure 1 As shown: the manual reset power supply protection relay of the present invention includes an upper cover 10, a lower cover 20, power input terminal electrodes (N, L, GND electrodes) 31-33, and power input (N, L, GND poles) spring contacts 41-43, power output elastic contacts (N, L, GND poles) 51-53, wire package wiring pins 61-63, coil base 71, drive coil 72, spring 73, iron core 74, among which, the coil base 71. The driving coil 72, the spring 73, and the iron core 74 constitute the electromagnet inside the relay; the electrodes 31-33 of the power input end are injected on the lower cover 20, and the spring contacts 41-43 of the power input end are welded and connected with the electrodes 31-33 of the power input end , the power supply output spring contacts 51-53 and wire package...
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The invention discloses a hand-reset power protective relay which comprises an upper cover, a lower cover, an electrode at the input end of a power supply, an elastic contact at the input end of the power supply, an elastic contact at the output end of the power supply, a solenoid wire connecting needle, a coil foundation bed, a drive coil, a spring and an iron core. In addition, the hand-reset power protective relay also comprises an electromagnet lock-making and return mechanism which is composed of a return spring, a lock-making clamp spring, an activity code, a shell fragment and a hand-reset return pin, wherein, the return spring matches with the activity code which simultaneously matches with the elastic contact at the input end of the power supply. One end of the lock-making clamp spring is locked with the iron core and the other end is inserted into a clamp groove of the activity code and locked with the hand-reset return pin. The shell fragment is fixed at the bottom of the activity code and the hand-set return pin stretches from the front end face of the upper cover into the interior of the relay and is connected with the activity code. The hand-reset power protective relay is characterized by small volume, low cost, simple structure, high production efficiency, convenient debugging and testing as well as high safety and reliability.
Description
Technical field: [0001] The invention relates to the technical field of relays, in particular to a power supply protection relay suitable for on-off of two or three lines of 110-220V AC and DC power supply, or for cutting off the power supply when the power supply leaks. Background technique: [0002] The power-off protection of conventional leakage protection switches, leakage protection plugs or leakage protection sockets seen in the market today uses multiple independent components (electromagnets, buttons, springs, copper contacts, plastic covers, etc.) On the circuit board, it is realized by the splitting and stabbing of various components. This kind of product has the disadvantages of large space occupation, complex structure, high cost, low production process, low production efficiency, inconvenient installation, debugging and detection, poor safety and reliability, and it is necessary to improve it. Invention content: [0003] The object of the present invention i...
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IPC IPC(8): H01H73/36
Inventor 陈春炎刘海生陈永良
Owner 广东威睿电子有限公司