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Compressor soft start control circuit, method and air conditioner

A control circuit and soft-start technology, applied in refrigerators, refrigeration components, mechanical equipment, etc., can solve the problems of easy damage of electronic components of soft-start boards

Active Publication Date: 2021-02-05
TCL AIR CONDITIONER ZHONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a compressor soft start control circuit, method and air conditioner, aiming to solve the technical problem that the soft start board, compressor relay and other electronic components are easily damaged due to the invalid use of the soft start board in the prior art

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  • Compressor soft start control circuit, method and air conditioner
  • Compressor soft start control circuit, method and air conditioner
  • Compressor soft start control circuit, method and air conditioner

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Embodiment Construction

[0066] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0067] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0068] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a compressor soft start control circuit, method and air conditioner. The circuit of the invention includes a power supply circuit, a first relay control circuit, a soft start board, a second relay control circuit, a voltage detection circuit and a controller; the controller When the power supply voltage is higher than the preset voltage value, output the first level to the first relay control circuit and the soft start board, so that the power circuit starts the compressor through the first relay and the soft start board, and when the power supply voltage is lower than the preset voltage value, output the second level to the second relay control circuit, so that the power supply circuit can directly start the compressor through the second relay. The technical scheme of the present invention starts the soft start board only when the power supply voltage is too high, which improves the performance of the soft start board. reliability and longevity.

Description

technical field [0001] The invention relates to the field of motor control, in particular to a compressor soft start control circuit, method and air conditioner. Background technique [0002] In recent years, with the increasing load of air conditioners, the inrush current when the air conditioner compressor starts is getting larger and larger. How to reduce the inrush current and protect electronic components has become an important research topic in the field of air conditioners. To protect compressor relays and other electronics, soft-start boards are widely used. [0003] Under normal circumstances, the working logic of the compressor with the soft start board is that after the power is supplied, the controller controls the compressor relay and the soft start board to make the compressor work. [0004] The soft start board is mainly composed of thyristors and is controlled by the controller. When the compressor relay is closed, the thyristors in the soft start board are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B49/02F24F11/89
CPCF25B49/022F24F11/89
Inventor 高磊黄育夫彭洋
Owner TCL AIR CONDITIONER ZHONGSHAN CO LTD