Heat pump set and control method and apparatus thereof

A technology of a heat pump unit and a control method, which is applied in the directions of heat pump, refrigeration and liquefaction, refrigerator, etc., can solve the problems of instability of heat pump unit and the like

Inactive Publication Date: 2015-11-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Embodiments of the present invention provide a heat pump unit and its control method and device to at least solve the technical problem of unstable heat pump units in the prior art

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  • Heat pump set and control method and apparatus thereof
  • Heat pump set and control method and apparatus thereof
  • Heat pump set and control method and apparatus thereof

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a heat pump set and control method and apparatus thereof. The method comprises: when a heat pump set starts a defrosting mode, a first step number of an auxiliary electronic expansion valve in the heat pump set is obtained, wherein the auxiliary electronic expansion valve is arranged on a shunt unit of a compressor spraying enthalpy port behind a condenser in the heat pump set; the e auxiliary electronic expansion valve is closed; and after the heat pump set turns off the defrosting mode, the step number of the auxiliary electronic expansion valve is adjusted to be the first step number. Therefore, a technical problem that the heat pump set is not stable in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of heat pump units, in particular to a heat pump unit and its control method and device. Background technique [0002] At present, most low-temperature areas use boiler combustion for heating, which has low heating energy efficiency and causes serious pollution to the atmosphere. In order to improve the air environment and improve heating energy efficiency, air source heat pump units have emerged as the times require, becoming the first choice for new heating equipment and future heating mainstream. [0003] The current air source heat pump unit, the single-stage compressor cannot adapt to the ultra-low temperature alpine region, and the single-stage compressor has poor reliability and low energy efficiency under the ultra-low temperature condition. However, the compressor strong heat technology involves the switching of the four-way valve in the defrosting of the unit. After switching, the roles of the two devices i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B49/02F25B30/06
Inventor 郑伟平魏峰
Owner GREE ELECTRIC APPLIANCES INC
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