Four-way valve and air conditioning system
An air-conditioning system and valve port technology, which is applied in the field of four-way valves and air-conditioning systems, can solve problems such as noise and leakage, and achieve the effects of reducing noise, simplifying control, and improving performance
Active Publication Date: 2017-07-28
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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Problems solved by technology
However, this arrangement will cause one of the four-way reversing valves to generate leakage and noise due to pressure changes
Method used
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[0030] 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.
[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus shoul...
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The invention discloses a four-way valve and an air conditioning system. The four-way valve includes: a valve body, the valve body has a first valve port to a fourth valve port; a valve core, the valve core is movably arranged in the valve body and divides the interior of the valve body into a first valve cavity to a third valve cavity, Wherein the valve core is configured such that when the pressure in the first valve cavity is lower than the pressure in the third valve cavity, the valve core moves from the third valve cavity toward the direction of the first valve cavity so that the first valve port communicates with the fourth valve port And the second valve port communicates with the third valve port, when the pressure in the first valve chamber is greater than the pressure in the third valve chamber, the spool moves from the first valve chamber to the direction of the third valve chamber so that the first valve port It communicates with the second valve port and the third valve port communicates with the fourth valve port. The four-way valve of the present invention not only has a simple structure, reduces noise, but also avoids leakage caused by pressure changes, and at the same time simplifies the control of the air-conditioning system to a certain extent, and improves the performance of the air-conditioning system.
Description
technical field [0001] The invention relates to the technical field of air conditioning, in particular to a four-way valve and an air conditioning system. Background technique [0002] When switching between heating and cooling modes, the refrigerant flow direction in the air conditioning system usually changes, that is, the refrigerant inlet changes to the refrigerant outlet in the cooling state. This change in the flow direction of the refrigerant usually has a certain impact on the performance of the air conditioning system. [0003] In related technologies, two four-way reversing valves are usually used to ensure that the refrigerant flow direction in the heat exchanger does not change during the cooling and heating switching process of the air conditioning system. However, this arrangement will cause one of the four-way reversing valves to leak and make noise due to pressure changes. Contents of the invention [0004] The present invention aims to solve at least one...
Claims
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IPC IPC(8): F25B41/04F16K11/065F25B41/20
CPCF16K11/065F25B41/20
Inventor 崔晓龙
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD