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Compression pump protection circuit and compression pump control method

A technology for protecting circuits and compression pumps, applied in the field of compression pumps, can solve problems such as easily damaged compression pumps, and achieve the effect of protecting compression pumps and solving easily damaged compression pumps.

Active Publication Date: 2016-03-30
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main purpose of the present invention is to provide a compression pump protection circuit and a compression pump control method to solve the problem that the compression pump is easily damaged when the compression pump starts with load

Method used

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  • Compression pump protection circuit and compression pump control method
  • Compression pump protection circuit and compression pump control method
  • Compression pump protection circuit and compression pump control method

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Embodiment Construction

[0034] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0035] First, the compression pump protection circuit provided by this specific embodiment is introduced.

[0036] Figure 4 is the principle diagram of the protection circuit of the compression pump according to the first embodiment of the present invention, such as Figure 4As shown, the compression pump protection circuit includes: a sampling circuit, used for sampling the electrical signal of the compression pump to obtain a sampling value; a comparison circuit, connected with the sampling circuit, used for comparing the magnitude of the sampling value and the preset value, wherein, in the When the sampled value is greater than the preset value, output a first lev...

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Abstract

The invention discloses a compression pump protection circuit and a compression pump control method. The compression pump protection circuit comprises a sampling circuit, a comparison circuit, and a control circuit. The sampling circuit is used for sampling an electrical signal of a compression pump to obtain a sampled value. The comparison circuit is connected with the sampling circuit and is used for comparing the sampled value with a preset value, outputting first level when the sampled value is larger than the preset value and outputting second level when the sampled value is smaller than or equal to the preset value. The control circuit connected with the comparison circuit is used for controlling the compression pump to decompress when the comparison circuit outputs the first level and controlling the compression pump to supply gas when the comparison circuit outputs the second level. The compression pump protection circuit can control the compression pump to decompress when the compression pump fails and automatically restarts, so that damage of the compression pump due to on-load start is avoided and the compression pump is protected.

Description

technical field [0001] The invention relates to the field of compression pumps, in particular to a compression pump protection circuit and a compression pump control method. Background technique [0002] The on-load startup of the air compressor pump mainly refers to: during the normal operation of the air compressor pump, the on-load startup caused by the accidental restart also exists in the compressor pump in the air compressor used in the medical field. It is easy to damage the compression pump when starting under load. [0003] In the prior art, for this situation, common protection methods for the compression pump include the following: [0004] (1) In the refrigerator, the composition block diagram of the on-load start-up protection circuit of the compression pump is as follows figure 1 shown. By adopting the protection circuit, the detection of overvoltage and undervoltage can be realized, and the power supply to the refrigerator can be delayed for 5 minutes after...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B49/10F04B49/06
Inventor 朗彦宇
Owner BEIJING AEONMED
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