Control panel heat dissipation device of air conditioner outdoor unit

Abstract

The utility model discloses a control panel heat dissipation device of an air conditioner outdoor unit, which comprises a heat dissipation module and a main refrigerant pipe passing through the heat dissipation module, and the main refrigerant pipe is respectively provided with a first one-way conduction valve assembly and a second one-way conduction valve assembly at two ends of the heat dissipation module. The first one-way conduction valve assembly and the second one-way conduction valve assembly flow into the heat dissipation module, the main refrigerant pipe is provided with a first refrigerant pipe connected with the second one-way conduction valve assembly in parallel and a second refrigerant pipe connected with the first one-way conduction valve assembly in parallel, the first refrigerant pipe is provided with a first throttling element, and the second refrigerant pipe is provided with a second throttling element. And a second throttling element is arranged on the second refrigerant pipe. Through the combination of the first one-way breakover valve assembly, the second one-way breakover valve assembly, the first throttling element and the second throttling element, the flow direction of a refrigerant can be automatically adjusted according to the operation mode of the unit during refrigeration and heating, heat dissipation of the control panel is automatically achieved, and the refrigeration / heating capacity of the unit is improved.

Description

Technical Field

[0001] The utility model relates to a control panel heat dissipation device of an outdoor unit of an air conditioner. Background Art

[0002] With the change of climate and environment, the outdoor temperature in summer is rising year by year, and the requirements for the capacity and reliability of refrigeration devices such as air conditioners are getting higher and higher. When the outdoor ambient temperature is higher than 43°C, the unit will often reduce the frequency of the compressor due to the excessive temperature of the power module of the outdoor unit control board (above 80°C), which will greatly reduce the refrigeration effect of the unit. In the prior art, air-cooled fins are commonly used for heat dissipation, which has low efficiency. There is also a method of adding refrigerant pipes to the control board and installing electronic expansion valves at the inlet and outlet to reduce the temperature of the power module. Although this method can achieve the control of the power module temperature, the control logic of the electronic expansion valve is complex, and it is easy to have valve core necrosis and other faults, and the cost is high and the popularity is low. Utility Model Content

[0003] In view of the above problems, the utility model provides a control panel heat dissipation device for an air-conditioning outdoor unit, which effectively solves the problems pointed out in the background technology.

[0004] The technical solution adopted by the utility model is:

[0005] A control panel heat dissipation device for an air-conditioning outdoor unit includes a heat dissipation module and a main refrigerant pipe passing through the heat dissipation module, wherein the main refrigerant pipe is provided with a first one-way valve assembly and a second one-way valve assembly at both ends of the heat dissipation module, respectively, and the flow direction of the first one-way valve assembly and the second one-way valve assembly is both to flow into the heat dissipation module, the main refrigerant pipe is provided with a first refrigerant pipe connected in parallel with the second one-way valve assembly, and a second refrigerant pipe connected in parallel with the first one-way valve assembly, the first refrigerant pipe is provided with a first throttling element, and the second refrigerant pipe is provided with a second throttling element.

[0006] Preferably, the first one-way valve assembly includes a first one-way valve and a first throttling element connected in series at the outlet end of the first one-way valve, and the second one-way valve assembly includes a second one-way valve and a second throttling element connected in series at the outlet end of the second one-way valve.

[0007] The setting of the first throttling element and the second throttling element allows the refrigerant to be slightly throttled before entering the control board for heat dissipation, thereby achieving a better heat dissipation effect of the control board.

[0008] The utility model uses a combination of a first one-way guide valve assembly, a second one-way guide valve assembly, a first throttling element and a second throttling element. During cooling and heating, the refrigerant flow direction can be self-adjusted according to the unit operation mode, and the control board can be dissipated automatically, thereby improving the cooling / heating capacity of the unit.

[0009] The utility model solves the problem of low efficiency of heat dissipation of the external unit mainboard of existing air-conditioning products on the market. Compared with the conventional solution of using refrigerant pipes to dissipate heat from the control board, the utility model has a simple structure, will not have reliability problems such as valve core jamming, and has low cost.

[0010] The utility model improves the heat dissipation efficiency of the external unit control board, makes the control board run more reliably, improves the ability and reliability of the unit to run under high temperature conditions, and can reduce product production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the utility model connected to an air conditioner. DETAILED DESCRIPTION

[0013] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0017] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0019] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0020] like Figure 1 As shown, a control panel heat dissipation device of an air-conditioning outdoor unit includes a heat dissipation module 1, and a main refrigerant pipe 2 passing through the heat dissipation module 1, the main refrigerant pipe 2 is respectively provided with a first one-way valve assembly 3 and a second one-way valve assembly 4 at both ends of the heat dissipation module 1, the flow direction of the first one-way valve assembly 3 and the second one-way valve assembly 4 both flow into the heat dissipation module 1, the main refrigerant pipe 2 is provided with a first refrigerant pipe 5 connected in parallel with the second one-way valve assembly 4, and a second refrigerant pipe 6 connected in parallel with the first one-way valve assembly 3, the first refrigerant pipe 5 is provided with a first throttling element 7, and the second refrigerant pipe 6 is provided with a second throttling element 8.

[0021] The first one-way valve assembly 3 includes a first one-way valve 31 and a first throttling element 32 connected in series at the outlet end of the first one-way valve 31. The second one-way valve assembly 4 includes a second one-way valve 41 and a second throttling element 42 connected in series at the outlet end of the second one-way valve 41. In actual use, the first one-way valve assembly 3 and the second one-way valve assembly 4 only use one-way valves without setting secondary throttling elements to achieve the purpose of the utility model.

[0022] When the utility model is used, the two ends of the main refrigerant pipe 2 are connected to the refrigerant pipeline between the indoor heat exchanger and the outdoor heat exchanger. Figure 2 As shown, the left end of the main refrigerant pipe 2 is connected to the indoor heat exchanger, and the right end is connected to the outdoor heat exchanger. Its working principle is as follows:

[0023] During refrigeration operation: the refrigerant is compressed by the compressor into a high-temperature and high-pressure gaseous refrigerant, enters the outdoor heat exchanger for condensation, becomes a medium-temperature and high-pressure refrigerant after condensation and supercooling, enters the first one-way valve 31, and then flows into the heat dissipation module 1 after micro-throttling by the first throttling element 32, takes away the heat dissipated by the control board, and reduces the surface temperature of the control board. After that, the refrigerant is throttled by the first throttling element 7 to become a low-temperature and low-pressure liquid refrigerant and enters the indoor heat exchanger. After heat exchange and cooling with the indoor air, it becomes a low-temperature and low-pressure superheated steam, and is then sucked into the compressor, thus forming a refrigeration cycle.

[0024] During heating operation: the refrigerant is compressed by the compressor into a high-temperature and high-pressure gaseous refrigerant, and the refrigerant is reversed by the reversing valve, and enters the indoor heat exchanger for condensation. After condensation and heat exchange with the indoor air, it becomes a medium-temperature and high-pressure refrigerant, and enters the second one-way valve 41. After that, it flows into the heat dissipation module 1 after micro-throttling by the second throttling element 42, taking away the heat dissipated by the control board and reducing the surface temperature of the control board. After that, the refrigerant is throttled by the second throttling element 8 to become a low-temperature and low-pressure liquid refrigerant and enters the outdoor heat exchanger. After evaporation heat exchange and cooling with the outdoor air, it becomes a low-temperature and low-pressure gaseous refrigerant, and is then sucked into the compressor, thus forming a heating cycle.

[0025] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.

Claims

1. A control panel heat dissipation device for an air conditioner outdoor unit, characterized in that: The invention comprises a heat dissipation module (1) and a main refrigerant pipe (2) passing through the heat dissipation module (1), wherein the main refrigerant pipe (2) is provided with a first one-way valve assembly (3) and a second one-way valve assembly (4) at both ends of the heat dissipation module (1), and the flow direction of the first one-way valve assembly (3) and the second one-way valve assembly (4) is both to flow into the heat dissipation module (1), and the main refrigerant pipe (2) is provided with a first refrigerant pipe (5) connected in parallel with the second one-way valve assembly (4), and a second refrigerant pipe (6) connected in parallel with the first one-way valve assembly (3), and the first refrigerant pipe (5) is provided with a first throttling element (7), and the second refrigerant pipe (6) is provided with a second throttling element (8).

2. A control panel heat dissipation device for an air conditioner outdoor unit according to claim 1, characterized in that: The first one-way valve assembly (3) comprises a first one-way valve (31) and a first throttling element (32) connected in series at the outlet end of the first one-way valve (31); the second one-way valve assembly (4) comprises a second one-way valve (41) and a second throttling element (42) connected in series at the outlet end of the second one-way valve (41).

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