Air pump starting circuit

A technology for starting a circuit and an air pump, applied in the air field, can solve the problems of severe vibration of the therapeutic apparatus, affecting the safety performance, and high instantaneous power of the air pump, and achieve the effects of reducing noise, improving safety performance, and reducing instantaneous current.

Pending Publication Date: 2018-03-23
WUHAN HAOHONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air pump needs to be started frequently during the treatment process. Since the current of the air pump is very large when it starts, it is easy to cause the instantaneous power of the air pump to be large, causing severe vibration of the treatment device and affecting safety performance.

Method used

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments described below are only some of the embodiments of the present invention, but not all of the embodiments. All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] figure 1 It is a structural schematic diagram of an air pump starting circuit of the present invention. As shown in the figure, the air pump starting circuit includes: a field effect transistor 11 and a diode 12 .

[0024] The field effect tube 11 is used to receive the input signal and connect to the air pump 13. When the input signal is the first electrical signal, the field effect tube 11 and the air pump 13 are activated;

[0025] The diode 12 is connected to the field effect tube 11 and the air pump 13, and the anode of the diode 12 is conne...

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PUM

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Abstract

The invention discloses an air pump starting circuit, which is used to start/stop the air pump. The starting circuit includes: a field effect tube, the field effect tube is used to receive an input signal, and is connected to the air pump. When the input When the signal is the first electrical signal, the field effect tube and the air pump are started; the diode, the diode is connected to the field effect tube and the air pump, and the anode of the diode is connected to the field effect tube One end of the tube is connected, when the input signal is the second electrical signal, the field effect tube is closed, the diode forms a loop with the air pump, the air pump is closed, and the drive of the first electrical signal The waveform rises at a fixed angle and the voltage/current across the air pump increases as the waveform rises. The invention uses the field effect tube to control the start/stop of the air pump, so as to reduce the instantaneous current when the air pump starts, reduce the noise caused by violent vibration, and improve the safety performance.

Description

technical field [0001] The invention relates to the technical field of air, in particular to an air pump starting circuit. Background technique [0002] An air pump is a device that removes air from a closed space or adds air from a closed space, and generates air pressure by continuously compressing air. [0003] Pneumatic Ballistic Orthopedic Therapeutic Apparatus is a medical device for the treatment or rehabilitation of orthopedic diseases. In the medical pneumatic ballistic orthopedic therapeutic apparatus, an air compression pump is built in. During the treatment process, the air pump needs to be started frequently. Since the current of the air pump is very large when the air pump is started, it is easy to cause the instantaneous power of the air pump to be large, which will cause severe vibration of the treatment device and affect the safety performance. Contents of the invention [0004] The embodiment of the present invention provides an air pump starting circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/18
CPCH02P1/18
Inventor 邵珍
Owner WUHAN HAOHONG TECH
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