Power-on self-test device of electrical equipment and electrical equipment
A technology of electrical equipment and self-inspection devices, applied in the direction of measuring devices, instruments, measuring electricity, etc., can solve problems such as potential safety hazards and short-circuit operation of electrical equipment, and achieve the effect of improving safety
Pending Publication Date: 2022-05-24
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology
[0004] The purpose of the present invention is to provide a power-on self-checking device for electrical equipment and electrical equipment to solve the problem that the electrical equipment may run in a short circuit and there is a great potential safety hazard. Make the electrical equipment perform self-inspection, so that the electrical equipment is allowed to be powered on and run only when the self-inspection passes, which can at least improve the safety of the electrical equipment itself
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[0020] To make the object, technical solution and advantages of the present invention more clear, the following will be combined with specific embodiments of the present invention and the corresponding accompanying drawings of the present invention of the technical solution is clearly and completely described. Obviously, the embodiments described are only a portion of the embodiments of the present invention, and not all embodiments. Based on embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work, are within the scope of protection of the present invention.
[0021] With the increase in the service life of the equipment, the equipment line will inevitably age, and the environment will also produce many unfavorable factors for the equipment, especially in some industrial applications, the environment for the equipment is extremely harsh, through the conventional dust and heat dissipation and other envi...
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The invention discloses a power-on self-test device of electrical equipment and the electrical equipment, and the device comprises a power supply unit which supplies power to an isolation unit and a switch unit under the condition that the electrical equipment is powered on; the isolation unit takes a power supply signal as a first to-be-tested signal and takes a signal at a test point as a second to-be-tested signal to test whether a short-circuit fault occurs between the first to-be-tested signal and the second to-be-tested signal, and if the short-circuit fault does not occur, a first isolation signal is output; if the short circuit fault occurs, a second isolation signal is output; the switch unit receives the first isolation signal and controls an equipment main power supply of the electrical equipment to supply power to the electrical equipment; and receiving the second isolation signal, and controlling an equipment main power supply of the electrical equipment not to supply power to the electrical equipment. According to the scheme, the electrical equipment is subjected to self-inspection under the condition that the electrical equipment is powered on, so that the electrical equipment is allowed to be powered on for operation under the condition that the self-inspection is passed, and at least the safety of the electrical equipment can be improved.
Description
Technical field [0001] The present invention belongs to the field of power-on control technology, specifically relates to a power-on self-test device and electrical equipment of an electrical device, in particular to a power-on hardware self-test circuit of a power-on device, and an electrical device having a power-on hardware self-test circuit. Background [0002] With the development of science and technology, in a variety of occasions are filled with a variety of electrical equipment, equipment (such as electrical equipment) short circuit operation, will produce great danger, especially large equipment, will produce burn, even explosion situation, seriously endanger the safety of personal and property. [0003] The foregoing is used only to assist in understanding the technical solution of the present invention and does not represent an acknowledgement that the foregoing is prior art. Contents of the Invention [0004] Object of the present invention is to provide a power-on ...
Claims
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Login to View More IPC IPC(8): G01R31/52G01R31/56
CPCG01R31/52G01R31/56
Inventor 贾卫东吴元超刘亚祥周文杰
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI