Alternating current motor heat dissipation protection device

A technology for protecting equipment and AC motors. It is applied in electrical components, electromechanical devices, and electric components. It can solve problems such as poor motor protection capability, and achieve the effects of improving heat dissipation efficiency, increasing displacement, and increasing pumping volume.

Inactive Publication Date: 2021-05-14
丁小冬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of poor motor protection capability in the prior art, and propose a heat dissipation protection device for AC motors

Method used

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  • Alternating current motor heat dissipation protection device
  • Alternating current motor heat dissipation protection device
  • Alternating current motor heat dissipation protection device

Examples

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Embodiment

[0021] refer to Figure 1-3 , a heat dissipation protection device for an AC motor, comprising a casing 1, an element cavity 2, a buffer cavity 3 and an electric coupling cavity 4 are opened inside the casing 1, and a distribution resistor 5, an electromagnet 6 and a diode 7 are fixed inside the element cavity 2, The distribution resistor 5 is connected in parallel with the electromagnet 6, and the diode 7 is used to limit the current passing through the electromagnet 6, so that the electromagnet 6 generates a magnetic field intermittently. The inner wall of the buffer chamber 3 is connected with a rotating shaft 8 through a torsion spring, and the rotating shaft 8 runs through the buffer chamber 3 and the electrical union chamber 4 extend to the outside of the housing 1 and are fixed with a rotating plate 9. A slow release mechanism is provided inside the buffer chamber 3, and a rotating plate 9 is fixed on the circumferential side wall of the rotating shaft 8 located inside t...

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PUM

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Abstract

An alternating current motor heat dissipation protection device is disclosed by the present invention, and comprises a shell, an element cavity, a buffer cavity and an electric connection cavity are formed in the shell, a resistor, an electromagnet and a diode are fixed in the element cavity, and the inner wall of the buffer cavity is rotatably connected with a rotating shaft through a torsion spring. The rotating shaft penetrates through the buffer cavity and the electric connection cavity to extend out of the shell and is fixedly provided with a rotating plate, a slow release mechanism is arranged in the buffer cavity, and the rotating plate is fixed to the circumferential side wall of the section, located in the electric connection cavity, of the rotating shaft. The device has the advantages that the electromagnet and the telescopic rod are arranged, the electromagnet generates an intermittent magnetic field through the unidirectivity of the diode, then the telescopic rod stretches out and draws back in a reciprocating mode, a push plate reciprocates, air flow is pumped, the air flow continuously flows in a suction hole and an exhaust hole, the flow speed of the air flow around the motor is increased, and the hot air flow is quickly diffused, so that the motor can effectively dissipate heat.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a heat dissipation protection device for an AC motor. Background technique [0002] A motor is a device that converts electrical energy into mechanical energy. There are many types of motors with different functions and are widely used in various fields; [0003] There is no doubt that the motor needs to be energized when it is working, but whether the power supply exceeds the rated value will directly affect the life of the motor, and the existing motor often has overcurrent phenomenon during operation, which leads to serious heating of the motor. Wait until the obvious overheating is found When a large damage has been received, and a short circuit or other line fault occurs, the motor may be scrapped directly, causing inconvenience in use and economic loss, and the existing motor itself does not have self-protection capabilities; [0004] Some motors are equipped with protectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K9/04H02K11/20
CPCH02K9/04H02K11/20
Inventor 丁小冬
Owner 丁小冬
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