Microelectron controlled release for electric element
A technology of electrical components and electronic control, applied in the direction of circuit layout, elastic/clamping device, etc. on the support structure, which can solve the problems of matching accuracy, reliability, life and operating frequency, and the inability to long distance.
Inactive Publication Date: 2005-09-07
陈庆荣
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Problems solved by technology
[0002] The traditional releases of electrical components with short-circuit and inverse time overload protection functions are all mechanical, and their disadvantages are that they cannot be operated remotely, centrally, automatically, and at a higher frequency (controlling closing and opening). When circuit breakers or similar low-voltage electrical appliances that must be able to be controlled remotely, centrally or automatically, they must be equipped with electric operating mechanisms that are more expensive than their own electrical appliances to achieve remote and centralized operation control, and due to the supporting assembly process, they are not in the same factory The design and manufacture are completed, so there will be problems with its matching accuracy, reliability, life and operating frequency
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[0008] Such as figure 1 Shown: "short-circuit protector", at the moment when a short-circuit fault occurs in the controlled primary circuit (main circuit), the iron core of the screw electromagnetic tripper of the "short-circuit protector" moves rapidly and pushes away the electronic control circuit connected in series. The auxiliary normally closed contact of the relay, the main contact of the relay is controlled by the auxiliary normally closed contact, therefore, the working power of the "relay" can be disconnected, so that the main contact of the "relay" can not get the closed electromagnetic attraction, and in Under the action of the reaction force spring, it is disconnected, so as to disconnect the fault current and achieve the purpose of protection.
[0009] "Overload protector" When the controlled primary line (electrical equipment) generates more than the design load during operation (including the occurrence of phase loss or phase failure during operation and the cur...
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The invention provides a micro electronic controlled releaser for electrical apparatus components, making low-voltage electrical apparatus components (such as low-voltage breaker, etc.) that have short-circuit analyzing ability and inverse time limit overload protecting ability, able to implement long-distance and automatic control of closing, breaking or free releasing of their main contactors without any external auxiliary equipment. And it comprises a main body and its characters lie in that: it is provided with auxiliary normally closed contact, which is connected in series with electronic control line and breaks the power supply of an actuating component by breaking the electronic control line to control the on or off of the main contactor. The electronic control line can be added with multiple protecting circuits, such as the protecting circuits for leakage, undervoltage, phase failure, phase sequence, etc. Multiple uses and functions can share a releaser and is not limited by the position; the occupied space is reduced, the investment cost is reduced and the reliability is improved, thus implementing long-distance and automatic control of closing, breaking or free releasing of the main contactor. By probation, the effect is extremely excellent.
Description
1. Technical field [0001] The invention belongs to the technical field of trippers for low-voltage electrical components. To be precise, it is a release of low-voltage electrical components controlled by microelectronics. 2. Background technology [0002] The traditional releases of electrical components with short-circuit and inverse time overload protection functions are all mechanical, and their disadvantages are that they cannot be operated remotely, centrally, automatically, and at a higher frequency (controlling closing and opening). When circuit breakers or similar low-voltage electrical appliances that must be able to be controlled remotely, centrally or automatically, they must be equipped with electric operating mechanisms that are more expensive than their own electrical appliances to achieve remote and centralized operation control, and due to the supporting assembly process, they are not in the same factory The design and manufacture are completed, so there wil...
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IPC IPC(8): H05K7/12
Inventor 陈庆荣
Owner 陈庆荣