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Heat pump system and control method thereof

A technology of a heat pump system and a control method, which is applied to heat pumps, refrigerators, refrigeration components, etc., can solve problems such as potential safety hazards of electric heaters, and achieve the effects of fast heating startup, good normal heating effect, and improved reliability.

Pending Publication Date: 2018-12-04
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, indoor units (especially multi-connected indoor units) are generally not equipped with electric heaters, and even if the electric heating of the indoor units is turned on, there is a possibility of using electric heaters indoors because the configuration of the indoor wires cannot be used for a long time. Security risks

Method used

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  • Heat pump system and control method thereof
  • Heat pump system and control method thereof
  • Heat pump system and control method thereof

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Embodiment Construction

[0060] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0061] In describing 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", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invent...

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Abstract

The invention discloses a heat pump system and a control method thereof. The heat pump system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling device, a bypassflow path, a first heating device and a second heating device; the compressor is provided with an air suction port and an air exhaust port; when one of the air suction port and the air exhaust port communicates with the first indoor heat exchange end, the other one of the air suction port and the air exhaust port communicates with the first outdoor heat exchange end; the bypass flow path is connected between the first outdoor heat exchange end and the second outdoor heat exchange end, and an on-off valve used for controlling on-off of the bypass flow path is arranged on the bypass flow path;the first heating device is arranged at the air exhaust port; and the second heating device is arranged between the second outdoor heat exchange end and the throttling device. According to the heat pump system, the heating starting speed is high, a refrigerant discharged from the compressor cannot carry too much refrigerant oil, and therefore the reliability of the compressor is improved; and in addition, the normal heating effect is good, the defrosting speed is high, and halting is not needed for defrosting.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a heat pump system and a control method thereof. Background technique [0002] In the related technology, when the heat pump system is in the heating mode, the refrigerant absorbs heat from the outdoor air through the outdoor heat exchanger of the outdoor unit, and then increases the pressure and temperature through the compressor, and discharges the heat from the outdoor side to the room to achieve the effect of heating. . However, the lower the outdoor temperature in winter, the less heat can be transported from the outside to the room, and the worse the indoor heating effect will be. Moreover, the refrigerant in the outdoor heat exchanger needs to be lowered because it needs to absorb the heat of the outdoor air. Depending on the temperature of the outdoor air, this will cause the outdoor heat exchanger to frost in the heating mode. After frost, it needs to be defros...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/02F25B47/00F25B49/02
CPCF25B30/02F25B47/00F25B49/02
Inventor 李元阳罗彬刘树清杨坤占磊
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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