Heat pump system

A heat pump system and outdoor unit technology, applied in the field of heat pump systems, can solve the problems of low heating efficiency of the heat pump system, affect the comfort of the heating effect, and the frost cannot be melted quickly, so as to achieve stable indoor temperature, shorten the defrosting time, and improve the efficiency. Improved effect

Active Publication Date: 2013-08-14
SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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Problems solved by technology

However, frost often gathers more at the refrigerant inlet of the outdoor unit, so the frost cannot be melted quickly, and the defrosting time is long. As a result, the longer the heating cycle stops, the greater the indoor temperature fluctuati

Method used

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[0044] The embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or positions indicated The relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the pr...

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Abstract

The invention discloses a heat pump system which comprises a compressor, a four-way valve, an indoor machine, an outdoor machine, a throttling device and a first on-off valve. A first valve port of the four-way valve is connected with a compressor outlet, and a third valve port of the four-way valve is connected with a compressor inlet. The indoor machine is provided with a first indoor machine opening and a second indoor machine opening, the outdoor machine is provided with a first outdoor machine opening and a second outdoor machine opening, the first indoor machine opening is connected with a second valve port, and the first outdoor machine opening is connected with a fourth valve port. A first opening of the throttling device is connected with the second indoor machine opening, and a second opening of the throttling device is connected with the second outdoor machine opening. A first port of the first on-off valve is connected with the fourth valve port and the first outdoor machine opening, and a second port of the first on-off valve is connected with the second outdoor machine opening and the second opening of the throttling device. The heat pump system has the advantages of being fast in defrosting, small in heating fluctuation, high in efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a heat pump system. Background technique [0002] The existing heat pump system includes an indoor unit, an outdoor unit, a four-way valve and an expansion valve, and has heating, defrosting and cooling modes. For example, in winter, after the heat pump system operates in the heating mode for a period of time, a frost layer will accumulate on the outdoor unit, which will affect the heat exchange efficiency and degrade the performance of the heat pump system. After the frost layer has accumulated to a certain extent, the heat pump system needs to be defrosted. [0003] Conventionally, the circulation direction of the refrigerant in the defrosting mode is opposite to the circulation direction of the refrigerant in the heating mode, that is, the refrigerant enters the outdoor unit from the refrigerant outlet of the outdoor unit during the heating cycle. However, frost often ...

Claims

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Application Information

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IPC IPC(8): F25B47/02F25B29/00
Inventor 高强黄宁杰刘华钊
Owner SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER
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