Heat dissipation assembly for air conditioner and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a heat dissipation assembly for an air conditioner. The air conditioner comprises a refrigerant circulation loop and an electric control heating element, the refrigerant circulation loop comprises a compressor, a condenser, a throttling device and an evaporator which are sequentially connected, the heat dissipation assembly comprises a heat conduction pipe, the first end of the heat conduction pipe is suitable for being communicated between the throttling device and the evaporator, and the second end of the heat conduction pipe comprises a heat conduction part; the heat conduction part is suitable for corresponding to the electric control heating element and is used for exchanging heat with the electric control heating element; the second end of the heat conduction pipe is higher than the first end of the heat conduction pipe, so that the gaseous refrigerant flows into the heat conduction pipe. The low-temperature gaseous refrigerant flowing out of the throttling device enters the heat conduction pipe through the first end of the heat conduction pipe to dissipate heat of the electric control heating element. The second end of the heat conduction pipe is higher than the first end of the heat conduction pipe, only part of the gaseous refrigerant can enter the heat conduction pipe, a large amount of refrigerant can be prevented from participating in heat exchange, and the influence on the overall performance of the refrigerant circulation loop is reduced. The utility model further discloses the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and particularly relates to a heat dissipation component for an air conditioner and an air conditioner. Background Art

[0002] When the electronic control system of an air conditioner operates in cooling mode in a high-temperature environment, the compressor operates at medium and low frequencies, resulting in insufficient cooling capacity of the air conditioner. Currently, radiator technologies for variable frequency controllers include direct air cooling technology that uses the air volume of the outdoor unit of the air conditioner to dissipate heat from the controller chip, and refrigerant loop heat dissipation technology that introduces refrigerant to dissipate heat from the controller chip. Due to the low heat dissipation efficiency and poor temperature uniformity of direct air cooling technology, and the tendency of refrigerant loop heat dissipation technology to frost and dew in specific working conditions, neither can meet the heat dissipation requirements of high-power variable frequency controllers.

[0003] Related technologies disclose an air conditioner that is provided with a first refrigerant flow path and a second refrigerant flow path connected in parallel, and an electronic control radiator assembly. A first control valve is connected in series on the first refrigerant flow path, and a second control valve is connected in series on the second refrigerant flow path. The electronic control radiator assembly includes an electronic control element and a heat dissipation component, and the heat dissipation component is connected in series on the first refrigerant flow path. When both the first control valve and the second control valve are in the open state, a part of the refrigerant enters the first refrigerant flow path, then flows into the heat dissipation component to dissipate heat from the electronic control element, and another part of the refrigerant passes through the second refrigerant flow path. In the cooling mode, refrigerant with a temperature close to or slightly higher than the ambient temperature can be made to flow through the heat dissipation component to dissipate heat from the electronic control element. Thus, heat can be dissipated from the electronic control element without reducing the operating frequency of the compressor, and condensation water can be avoided from forming on the electronic control element.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related technologies:

[0005] In the related technologies, the refrigerant flow rate of the first refrigerant flow path is controlled by the first control valve, so that part of the refrigerant flows into the heat dissipation component through the first refrigerant flow path to dissipate heat from the electronic control element. This will affect the heat absorption capacity of the evaporator, thereby affecting the cooling effect of the air conditioner.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application. Therefore, it may include information that does not constitute the prior art known to those of ordinary skill in the art. Utility Model Content

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments. Instead, it serves as a preface to the subsequent detailed description.

[0008] Embodiments of the present disclosure provide a heat dissipation component for an air conditioner and an air conditioner, which can reduce the impact on the refrigeration effect of the air conditioner while dissipating heat from the electrically controlled heating element.

[0009] According to the first aspect of the embodiments of the present invention, a heat dissipation component for an air conditioner is provided. The air conditioner includes a refrigerant circulation loop and an electrically controlled heating element. The refrigerant circulation loop includes a compressor, a condenser, a throttling device, and an evaporator connected in sequence. The heat dissipation component includes: a heat conduction tube, the first end of the heat conduction tube is adapted to be connected between the throttling device and the evaporator, and the second end of the heat conduction tube includes a heat conduction portion, the heat conduction portion is adapted to correspond to the electrically controlled heating element and is used for heat exchange with the electrically controlled heating element; wherein, the second end of the heat conduction tube is higher than the first end of the heat conduction tube to enable gaseous refrigerant to flow into the heat conduction tube.

[0010] Optionally, the second end of the heat conduction tube is a closed end.

[0011] Optionally, the second end of the heat conduction tube is adapted to be connected between the evaporator and the compressor.

[0012] Optionally, the heat conduction portion includes a straight section that extends linearly along the electrically controlled heating element; and / or, the heat conduction portion includes a curved section that extends curvilinearly along the electrically controlled heating element; and / or, the heat conduction portion includes a heat conduction chamber, and the size of the heat conduction chamber is adapted to the size of the electrically controlled heating element.

[0013] Optionally, the heat conduction tube is made of a heat conductive material.

[0014] Optionally, the heat dissipation component for the air conditioner further includes: a heat diffuser, which is adapted to be in contact with both the heat conduction portion and the electrically controlled heating element, so that the heat of the electrically controlled heating element is transferred to the heat conduction portion through the heat diffuser.

[0015] Optionally, a flow channel is provided in the heat diffuser, one end of the flow channel is connected to the heat conduction tube to enable gaseous refrigerant to flow into the flow channel, and the outer surface of the heat diffuser is adapted to be fitted with the electrically controlled heating element; or, the heat diffuser includes a first surface and a second surface, the first surface of the heat diffuser is fitted with the heat conduction portion, and the second surface of the heat diffuser is adapted to be fitted with the electrically controlled heating element.

[0016] Optionally, the radial cross-section of the first end of the heat conduction tube is a circular cross-section, and the radial cross-section of the second end of the heat conduction tube is a rectangular cross-section.

[0017] According to the second aspect of the embodiments of the present utility model, an air conditioner is provided, including: a refrigerant circulation loop, including a compressor, a condenser, a throttling device, and an evaporator connected in sequence; an electrically controlled heating element; the heat dissipation component for the air conditioner as described in any one of the above embodiments, the first end of the heat conduction tube is connected between the throttling device and the evaporator, and the second end of the heat conduction tube corresponds to the electrically controlled heating element and is used for heat exchange with the electrically controlled heating element.

[0018] Optionally, the refrigerant circulation loop further includes a main pipe. One end of the main pipe is communicated with the throttling device, and the other end of the main pipe is communicated with the evaporator. The first end of the heat conduction pipe is communicated with the main pipe, and the inner diameter of the heat conduction pipe is smaller than that of the main pipe; and / or, the range of the position height difference between the electric control heating element and the main pipe is greater than or equal to 20 mm.

[0019] The heat dissipation component and the air conditioner for the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The first end of the heat conduction pipe is adapted to be communicated between the throttling device and the evaporator, and can enable the low-temperature gaseous refrigerant flowing out of the throttling device to enter the heat conduction pipe through the first end of the heat conduction pipe to dissipate heat from the electric control heating element. The second end of the heat conduction pipe includes a heat conduction portion, and the heat conduction portion is arranged corresponding to the electric control heating element, and can absorb the heat of the electric control heating element and then perform heat exchange with the refrigerant in the heat conduction pipe. Since the second end of the heat conduction pipe is higher than the first end of the heat conduction pipe, only part of the gaseous refrigerant can enter the heat conduction pipe to participate in the cooling of the electric control heating element. In this way, a large amount of refrigerant can be avoided from participating in the heat exchange, and the influence on the overall performance of the refrigerant circulation loop can be reduced. Therefore, while dissipating heat from the electric control heating element, the influence on the refrigeration effect of the air conditioner can be reduced.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0023] Figure 1 is a schematic diagram of an air conditioner provided by an embodiment of the present disclosure, wherein the direction indicated by the arrow is the flowing direction of the refrigerant;

[0024] Figure 2 is a pressure-enthalpy diagram of a refrigerant in a refrigerant circulation loop provided by an embodiment of the present disclosure;

[0025] Figure 3 is a schematic structural diagram of a heat dissipation component for an air conditioner cooperating with an electric control heating element provided by an embodiment of the present disclosure, wherein the direction indicated by the arrow is the flowing direction of the refrigerant;

[0026] Figure 4 is another schematic structural diagram of a heat dissipation component for an air conditioner cooperating with an electric control heating element provided by an embodiment of the present disclosure, wherein the direction indicated by the arrow is the flowing direction of the refrigerant;

[0027] Figure 5 FIG. Figure 5 is another schematic structural view of a heat dissipation component for an air conditioner cooperating with an electric control heating element, wherein the direction indicated by the arrow is the flow direction of the refrigerant;

[0028] Figure 6 FIG. Figure 6 is another schematic structural view of a heat dissipation component for an air conditioner cooperating with an electric control heating element, wherein the direction indicated by the arrow is the flow direction of the refrigerant;

[0029] Figure 7 FIG. Figure 7 is another schematic structural view of a heat dissipation component for an air conditioner cooperating with an electric control heating element, wherein the direction indicated by the arrow is the flow direction of the refrigerant;

[0030] Figure 8 FIG. Figure 8 is another schematic structural view of a heat dissipation component for an air conditioner cooperating with an electric control heating element, wherein the direction indicated by the arrow is the flow direction of the refrigerant;

[0031] Figure 9 FIG. Figure 9 is a schematic structural view of a heat conduction tube provided by an embodiment of the present disclosure;

[0032] Figure 10 FIG. Figure 10 is another schematic structural view of a heat conduction tube provided by an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10: Heat dissipation component;

[0035] 20: Electric control heating element;

[0036] 30: Heat conduction tube; 31: First end of the heat conduction tube; 32: Second end of the heat conduction tube; 321: Heat conduction part; 322: Straight section; 323: Curved section; 324: Heat conduction chamber; 33: Circular cross-section; 34: Rectangular cross-section;

[0037] 40: Refrigerant circulation circuit; 41: Compressor; 42: Condenser; 43: Evaporator; 44: Throttling device;

[0038] 50: Heat diffuser; 51: Flow channel; 52: First surface; 53: Second surface;

[0039] 60: Main pipe. Detailed implementation manners

[0040] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0041] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data may be interchanged under appropriate circumstances for the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0042] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0043] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0044] Unless otherwise specified, the term "plurality" means two or more.

[0045] In the embodiments of the present disclosure, the character " / " means that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0046] The term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.

[0047] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments may be combined with each other.

[0048] When the electronic control system of an air conditioner operates in a high-temperature environment for refrigeration, the compressor operates at medium and low frequencies, resulting in insufficient refrigeration capacity of the air conditioner. Currently, the radiator technologies for variable frequency controllers include direct air-cooling technology that uses the air volume of the outdoor unit of the air conditioner to dissipate heat from the controller chip, and refrigerant loop heat dissipation technology that introduces refrigerant to dissipate heat from the controller chip. Due to the low heat dissipation efficiency and poor temperature uniformity of the direct air-cooling technology, and the easy frosting and dew condensation of the refrigerant loop heat dissipation technology under specific working conditions, neither can meet the heat dissipation requirements of high-power variable frequency controllers.

[0049] The related art sets up a parallel first refrigerant flow path and a second refrigerant flow path, and controls the refrigerant flow rate of the first refrigerant flow path through a first control valve, so that part of the refrigerant flows into the heat dissipation component through the first refrigerant flow path to dissipate heat from the electronic control components. This will affect the heat absorption capacity of the evaporator, thereby affecting the refrigeration effect of the air conditioner. This also increases the complexity of the refrigerant flow path, resulting in an increased difficulty in refrigerant allocation. At the same time, part of the refrigerant flows into the heat dissipation component through the first refrigerant flow path to dissipate heat from the electronic control components. The refrigerant absorbs additional heat in the heat dissipation component and continues to flow into the refrigerant circulation loop, which will also cause a decrease in the efficiency of the refrigeration cycle.

[0050] Combined with Figures 1-10 As shown in the figure, an embodiment of the present disclosure provides a heat dissipation component 10 for an air conditioner. The air conditioner includes a refrigerant circulation loop 40 and an electronically controlled heating element 20. The refrigerant circulation loop 40 includes a compressor 41, a condenser 42, a throttling device 43, and an evaporator 44 connected in sequence. The heat dissipation component 10 includes a heat conduction tube 30.

[0051] Combined with Figure 1 As shown in the figure, the first end 31 of the heat conduction tube is adapted to be connected between the throttling device 44 and the evaporator 43. The second end 32 of the heat conduction tube includes a heat conduction portion 321. The heat conduction portion 321 is adapted to correspond to the electronically controlled heating element 20 for heat exchange with the electronically controlled heating element 20. Among them, the second end 32 of the heat conduction tube is higher than the first end 31 of the heat conduction tube, so that gaseous refrigerant flows into the heat conduction tube 30.

[0052] The electronically controlled heating element 20 refers to an electronic component or assembly that generates heat during the operation of the air conditioner, such as a computer board.

[0053] The refrigerant circulation loop 40 includes a compressor 41, a condenser 42, a throttling device 44, and an evaporator 43 connected in sequence. The compressor 41, the condenser 42, the throttling device 44, and the evaporator 43 are connected through refrigerant pipes to form a closed circulation loop, and the refrigerant circulates in the refrigerant circulation loop 40.

[0054] As Figure 1 shown, in the refrigeration mode, along the flow direction of the refrigerant, the compressor 41, the condenser 42, the throttling device 44, and the evaporator 43 are arranged in sequence.

[0055] By using the heat dissipation component 10 for an air conditioner provided by the embodiment of the present disclosure, the first end 31 of the heat conduction tube is adapted to be connected between the throttling device 44 and the evaporator 43, and can enable the low-temperature gaseous refrigerant flowing out of the throttling device 44 to enter the heat conduction tube 30 through the first end 31 of the heat conduction tube to dissipate heat from the electronic control heating element 20. The second end 32 of the heat conduction tube includes a heat conduction portion 321, and the heat conduction portion 321 is arranged corresponding to the electronic control heating element 20, can absorb the heat of the electronic control heating element 20, and then perform heat exchange with the refrigerant in the heat conduction tube 30. Since the second end 32 of the heat conduction tube is higher than the first end 31 of the heat conduction tube, only part of the gaseous refrigerant can enter the heat conduction tube 30 to participate in the cooling of the electronic control heating element 20. This can avoid a large amount of refrigerant participating in the heat exchange and reduce the impact on the overall performance of the refrigerant circulation loop 40. Thus, while dissipating heat from the electronic control heating element, the influence on the refrigeration effect of the air conditioner can be reduced.

[0056] The second end 32 of the heat conduction tube is higher than the first end 31 of the heat conduction tube, which can enable the gaseous refrigerant in the refrigerant circulation loop to automatically flow into the heat conduction tube 30, and thus can reduce the difficulty of refrigerant allocation while dissipating heat from the electronic control heating element 20. The second end 32 of the heat conduction tube corresponds to the electronic control heating element 20, and can also achieve directional cooling of the electronic control heating element 20, improving the cooling and heat dissipation effect.

[0057] At the same time, since only a small amount of gaseous refrigerant flows into the heat conduction tube 30 to dissipate heat from the electronic control heating element 20, it is possible to avoid excessive cooling of the electronic control heating element 20, and thus avoid the generation of condensed water on the electronic control heating element 20.

[0058] Optionally, as shown in combination with Figure 1 and Figures 3-8 shown, the second end 32 of the heat conduction tube is a closed end.

[0059] The second end 32 of the heat conduction tube is a closed end, so that the heat conduction tube 30 forms a blind tube at the end in contact with the electronic control heating element 20. This can enable the refrigerant entering the heat conduction tube 30 to return to the refrigerant flow path of the refrigerant circulation loop 40 as little as possible after heat exchange with the electronic control heating element 20, thus avoiding affecting the performance of the refrigerant circulation loop 40. At the same time, the closure of the second end 32 of the heat conduction tube can also simplify the refrigerant flow path and reduce the production cost.

[0060] When the second end 32 of the heat conduction tube is a closed end, after the gaseous refrigerant flows into the heat conduction tube 30 and exchanges heat with the electrically controlled heating element 20 at the second end 32 of the heat conduction tube, the temperature of the gaseous refrigerant in the heat conduction tube 30 rises. The gaseous refrigerant at the second end 32 of the heat conduction tube expands after absorbing heat, resulting in an increase in pressure, and a pressure difference is generated between the second end 32 and the first end 31 of the heat conduction tube. The pressure difference can drive the gaseous refrigerant to flow from the second end 32 of the heat conduction tube with higher pressure to the first end 31 of the heat conduction tube with lower pressure, realizing the return of the gaseous refrigerant to the refrigerant circulation circuit 40.

[0061] Optionally, the second end 32 of the heat conduction tube is adapted to be connected between the evaporator 43 and the compressor 41.

[0062] When the second end 32 of the heat conduction tube is connected between the evaporator and the compressor, the gaseous refrigerant after exchanging heat with the electrically controlled heating element 20 can directly flow into the refrigerant circulation circuit 40. When the second end 32 of the heat conduction tube is connected between the evaporator and the compressor, the gaseous refrigerant after exchanging heat with the electrically controlled heating element 20 can also directly enter the compressor through the suction port of the compressor 41, which can reduce the influence on the heat absorption effect of the evaporator 43, thereby reducing the influence on the refrigeration effect of the air conditioner.

[0063] Optionally, as shown in Figure 4 the heat conduction part 321 includes a straight section 322, and the straight section 322 extends linearly along the electrically controlled heating element 20.

[0064] The second end 32 of the heat conduction tube exchanges heat with the electrically controlled heating element 20 through the heat conduction part 321. The shape of the heat conduction part 321 can be set according to the specific layout and shape of the electrically controlled heating element 20, which can optimize the heat conduction path and improve the heat dissipation efficiency.

[0065] The straight section 322 extends linearly along the electrically controlled heating element 20, enabling heat to be quickly transferred in a straight line direction, improving the heat conduction efficiency. The design structure of the straight section 322 is simple, and it can also reduce the production cost while achieving the heat dissipation effect.

[0066] Optionally, as shown in Figure 5 the heat conduction part 321 includes a curved section 323, and the curved section 323 extends along the electrically controlled heating element 20 in a curve.

[0067] The curved section 323 extends along the electrically controlled heating element 20 in a curve, which can increase the contact area with the electrically controlled heating element 20, improving the heat dissipation efficiency and heat dissipation uniformity.

[0068] Optionally, as shown in Figure 6As shown, the second end 32 of the heat conduction tube includes a heat conduction part 321, and the heat conduction part 321 includes a heat conduction chamber 324. The size of the heat conduction chamber 324 is adapted to the size of the electronically controlled heating element 20.

[0069] The heat conduction part 321 is provided with the heat conduction chamber 324, which can increase the inflow of the refrigerant in the heat conduction part 321 and extend the retention time of the second end of the heat conduction tube 30, thereby improving the heat dissipation effect. At the same time, the size of the heat conduction chamber 324 is adapted to the size of the electronically controlled heating element 20, which can better adapt to the shape of the electronically controlled heating element 20 and improve the heat dissipation uniformity.

[0070] Optionally, as shown in Figures 4-6 the air conditioner includes a plurality of electronically controlled heating elements 20, the number of the heat conduction parts 321 is plural, and the plurality of heat conduction parts 321 correspond to the plurality of electronically controlled heating elements 20 one by one.

[0071] The plurality of electronically controlled heating elements 20 corresponding to the plurality of heat conduction parts 321 can achieve multi-point heat dissipation, and the heat conduction parts 321 can be correspondingly arranged according to the distribution of the plurality of electronically controlled heating elements 20. In this way, the heat generated by the electronically controlled heating elements 20 can be more effectively dispersed, and the overall heat dissipation efficiency can be improved.

[0072] Optionally, the heat conduction tube 30 is made of a heat conductive material.

[0073] The heat conduction tube 30 is made of a heat conductive material, so that the heat conduction tube 30 itself can conduct heat. The heat of the electronically controlled heating element 20 can be transferred from the second end 32 of the heat conduction tube to the first end 31 of the heat conduction tube through the wall surface of the heat conduction tube. Through the gas heat conduction of the gaseous refrigerant and combined with the solid heat conduction of the heat conduction tube 30, the heat dissipation effect can be effectively improved, and the heat dissipation efficiency for the electronically controlled heating element 20 can be improved. The heat conduction tube 30 can be made of a metal material.

[0074] The heat dissipation assembly provided by the embodiments of the present disclosure can be used in combination with a traditional direct air-cooled radiator. The heat of the electronically controlled heating element 20 is transferred to the heat conduction tube and is transferred from the second end 32 of the heat conduction tube to the first end 31 of the heat conduction tube. During the heat transfer process, the direct air-cooled radiator blows air towards the heat dissipation assembly, which can reduce the temperature of the wall surface of the heat conduction tube and improve the heat dissipation effect. In the case where the heat generation amount of the electronically controlled heating element 20 is large and the distribution of the electronically controlled heating elements 20 is not concentrated, the temperature of the electronically controlled heating element 20 can be more effectively reduced and dissipated.

[0075] Optionally, as shown in Figures 4-8 the heat dissipation assembly 10 further includes a heat diffuser 50, and the heat diffuser 50 is adapted to be in contact with both the heat conduction tube 30 and the electronically controlled heating element 20, so that the heat of the electronically controlled heating element 20 is transferred to the heat conduction part 321 through the heat diffuser 50 by heat conduction.

[0076] Through the heat diffuser 50, the heat transfer area between the heat conduction part 3210 and the electronically controlled heating element 20 can be increased, optimizing the heat dissipation effect. The heat diffuser 50 is in direct contact with the heat conduction part 321 and the electronically controlled heating element 20, enabling more uniform heat transfer between the refrigerant in the heat conduction tube 30 and the electronically controlled heating element 20, and improving the heat conduction efficiency.

[0077] Optionally, as shown in Figure 8 , a flow channel 51 is provided in the heat diffuser 50. One end of the flow channel 51 communicates with the heat conduction tube 30 to allow gaseous refrigerant to flow into the flow channel 51, and the outer surface of the heat diffuser 50 is adapted to fit with the electronically controlled heating element 20.

[0078] Heat transfer between the heat conduction part 321 and the electronically controlled heating element 20 is carried out through the heat diffuser 50. A flow channel 51 communicating with the heat conduction tube 30 is provided inside the heat diffuser 50, enabling gaseous refrigerant to enter the flow channel 51 through the heat conduction tube 30. Since the outer surface of the heat diffuser 50 fits with the electronically controlled heating element 20, the heat diffuser 50 can quickly transfer heat from the electronically controlled heating element 20 to the refrigerant in the heat conduction tube 30, achieving heat dissipation for the electronically controlled heating element 20. At the same time, because the outer surface of the heat diffuser 50 fits with the electronically controlled heating element 20 and the heat conduction tube is made of heat-conducting material, the heat of the electronically controlled heating element 20 can also be directly transferred to the heat conduction tube 30 through the heat diffuser 50. This can achieve efficient heat dissipation.

[0079] Optionally, as shown in Figure 7 , the heat diffuser 50 includes opposite first surface 52 and second surface 53. The first surface 52 of the heat diffuser 50 fits with the heat conduction part 321, and the second surface 53 of the heat diffuser 50 is adapted to fit with the electronically controlled heating element 20.

[0080] The heat conduction part 321 and the electronically controlled heating element 20 respectively fit with the opposite first surface 52 and second surface 53 of the heat diffuser 50, enabling rapid heat transfer between the heat conduction tube 30 and the electronically controlled heating element 20 through the heat diffuser 50. As an intermediate for heat conduction, the heat diffuser 50 can effectively transfer heat from the electronically controlled heating element 20 to the heat conduction tube 30, and then the heat is taken away by the refrigerant in the heat conduction tube 30 or the heat conduction tube 30 itself, improving the heat conduction efficiency.

[0081] Optionally, as shown in Figures 4-6 , the heat diffuser 50 is a heat conduction plate. The bottom of the heat conduction plate fits with the second end 32 of the heat conduction tube, and the top of the heat conduction plate fits with the electronically controlled heating element 20.

[0082] As shown in Figures 4-6As shown, the electrically controlled heating element 20 is represented by a dashed-line perspective view. The heat conducting plate has a large surface area, which can quickly spread the heat from the electrically controlled heating element 20 to a larger area, thereby achieving uniform heat dissipation and improving the heat dissipation efficiency.

[0083] Optionally, in combination Figures 9-10 As shown, the radial cross-section of the first end 31 of the heat conducting tube is a circular cross-section 33, and the radial cross-section of the second end 32 of the heat conducting tube is a rectangular cross-section 34.

[0084] The radial cross-section of the first end 31 of the heat conducting tube being a circular cross-section 33 can reduce the flow resistance and improve the flow efficiency of the refrigerant flowing into the heat conducting tube 30 from the first end 31 of the heat conducting tube. The radial cross-section of the second end 32 of the heat conducting tube being a rectangular cross-section 34 enables a larger contact area between the second end 32 of the heat conducting tube and the electrically controlled heating element 20, which can improve the heat exchange efficiency between the heat conducting tube 30 and the electrically controlled heating element 20. The radial cross-section of the first end 31 of the heat conducting tube being a circular cross-section 33 and the radial cross-section of the second end 32 of the heat conducting tube being a rectangular cross-section 34 can enhance the heat exchange effect.

[0085] In combination Figure 1 As shown, an embodiment of the present disclosure provides an air conditioner, including a refrigerant circulation circuit 40, an electrically controlled heating element 20, and a heat dissipation assembly 10 for an air conditioner as described in any one of the above embodiments. The refrigerant circulation circuit 10 includes a compressor 41, a condenser 42, a throttling device 44, and an evaporator 43 connected in sequence; the first end 31 of the heat conducting tube communicates between the throttling device 44 and the evaporator 43, and the second end 32 of the heat conducting tube corresponds to the electrically controlled heating element 20 and is used for heat exchange with the electrically controlled heating element 20.

[0086] The air conditioner provided by the embodiment of the present disclosure includes the heat dissipation assembly 10 for an air conditioner as described in any one of the above-disclosed embodiments, and thus has all the beneficial effects of the heat dissipation assembly 10 for an air conditioner as described in any one of the above-disclosed embodiments, which will not be elaborated herein.

[0087] In the cooling mode, the refrigerant circulation circuit 40 performs a refrigeration cycle, and the flow direction of the refrigerant is as Figure 1As shown in the figure. At this time, the refrigerant is compressed in the compressor 41, and its temperature and pressure increase. The high-temperature and high-pressure refrigerant flows to the condenser 42 for condensation, releasing heat to the external air, and the refrigerant changes from a gaseous state to a low-temperature and high-pressure liquid state. Then, the high-pressure liquid refrigerant passes through the throttling device 44 to reduce its pressure, and part of the refrigerant evaporates into a gaseous state, and its temperature also decreases, becoming a low-temperature and low-pressure gas-liquid two-phase refrigerant. Part of the gaseous refrigerant in the gas-liquid two-phase refrigerant enters the heat conduction tube 30 and exchanges heat with the electric control heating element 20. At the same time, when the heat conduction tube 30 is made of a heat conduction material, part of the heat of the electric control heating element 20 can also be returned to the first end 31 of the heat conduction tube through the wall surface of the heat conduction tube 30 to achieve heat dissipation. The liquid refrigerant and part of the gaseous refrigerant in the gas-liquid two-phase refrigerant enter the evaporator 43 for evaporation, absorbing the heat in the room and cooling the indoor air. Then the refrigerant returns to the compressor 41 again to complete the refrigeration cycle.

[0088] The pressure-enthalpy diagram of the refrigeration cycle system is as Figure 2 shown, demonstrating the state changes of the refrigerant in the refrigeration cycle system. Among them, the abscissa is the enthalpy (h), and the ordinate is the logarithmic pressure (lgP). The state point from 1 to 2 is the compression process. The suction gas of the compressor 41 is superheated gas (such as Figure 2 the state point 1 in the figure), and the superheated refrigerant gas is compressed by the compressor 41 and then flows out of the compressor 41 as high-temperature and high-pressure refrigerant (such as Figure 2 the state point 2 in the figure). The state point from 2 to 3 is the condensation process. After the high-temperature and high-pressure refrigerant is condensed by the condenser 42, it becomes a low-temperature and high-pressure subcooled liquid (such as Figure 2 the state point 3 in the figure). The state point from 3 to 4 is the expansion process. The low-temperature and high-pressure subcooled liquid is throttled by the throttling device 44 again to reduce the pressure and become a low-temperature and low-pressure gas-liquid two-phase refrigerant (such as Figure 2 the state point 4 in the figure). The state point from 4 to 1 is the evaporation process. After the low-temperature and low-pressure gas-liquid two-phase refrigerant is evaporated by the evaporator 43, it becomes a high-temperature and low-pressure superheated gas again.

[0089] Optionally, as shown in combination with Figure 1 and Figure 3 the figure, the refrigerant circulation circuit 40 further includes a main pipe 60. One end of the main pipe 60 is communicated with the throttling device 44, the other end of the main pipe 60 is communicated with the evaporator, the first end 31 of the heat conduction tube is communicated with the main pipe 60, and the inner diameter of the heat conduction tube 30 is smaller than the inner diameter of the main pipe 60.

[0090] The inner diameter of the heat conduction tube 30 is as shown by φd in Figure 3 the figure, and the inner diameter of the main pipe 60 is as shown by φD in Figure 3 the figure.

[0091] One end of the main pipe 60 is communicated with the throttling device 44, and the other end of the main pipe 60 is communicated with the evaporator. The main pipe 60 is connected in series in the refrigerant circulation circuit 40 and is located in the refrigerant flow path of the refrigerant circulation circuit 40. The relatively large inner diameter of the main pipe 60 enables the refrigerant in the refrigerant circulation circuit 40 to flow normally. The first end 31 of the heat conduction pipe is communicated with the refrigerant circulation circuit 40 through the main pipe 60, and the gaseous refrigerant flows into the first end 31 of the heat conduction pipe through the main pipe 60. The inner diameter of the heat conduction pipe 30 is smaller than that of the main pipe 60. The relatively small inner diameter of the heat conduction pipe 30 can only allow the gaseous refrigerant to enter the heat conduction pipe 30, while preventing the liquid refrigerant from entering the heat conduction pipe 30. In this way, while cooling the electronically controlled heating element 20, the influence on the refrigerant circulation circuit 40 can be reduced.

[0092] Optionally, as shown in Figure 1 and Figure 3 , the refrigerant circulation circuit 40 further includes a main pipe 60. One end of the main pipe 60 is communicated with the throttling device 44, and the other end of the main pipe 60 is communicated with the evaporator. The first end 31 of the heat conduction pipe is communicated with the main pipe 60, and the range of the height difference in position between the electronically controlled heating element 20 and the main pipe 60 is greater than or equal to 20 mm.

[0093] The height difference in position between the electronically controlled heating element 20 and the main pipe 60 is as shown by H in Figure 3 .

[0094] Since the heat conduction part 321 of the second end 32 of the heat conduction pipe corresponds to the electronically controlled heating element 20, and the first end 31 of the heat conduction pipe is communicated with the main pipe 60, the height difference in position between the electronically controlled heating element 20 and the main pipe 60 can ensure that there is a certain height difference between the second end 32 and the first end of the heat conduction pipe.

[0095] The range of the height difference in position between the electronically controlled heating element 20 and the main pipe 60 is greater than or equal to 20 mm, which can prevent the liquid refrigerant from flowing into the first end 31 of the heat conduction pipe. In this way, while the gaseous refrigerant enters the heat conduction pipe 30 to dissipate heat and cool the electronically controlled heating element 20, the original performance of the refrigerant circulation circuit 40 can also be prevented from being affected. The maximum value of the height difference in position between the electronically controlled heating element 20 and the main pipe 60 is limited by the size of the outdoor unit, and the height difference in position between the electronically controlled heating element 20 and the main pipe 60 can be determined according to the size of the outdoor unit of different models of air conditioners.

[0096] It can be understood that the height difference in position between the electronically controlled heating element 20 and the main pipe 60 can be 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, and so on.

[0097] The foregoing description and drawings sufficiently illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural as well as other changes. Embodiments represent merely possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat dissipation assembly for an air conditioner, the air conditioner comprising a refrigerant circulation loop and an electrically controlled heating element, the refrigerant circulation loop comprising a compressor, a condenser, a throttling device and an evaporator connected in sequence, characterized in that: The heat dissipation components include: A heat conducting pipe, wherein the first end of the heat conducting pipe is adapted to be connected between the throttling device and the evaporator, and the second end of the heat conducting pipe comprises a heat conducting portion, which is adapted to correspond to the electrically controlled heating element and is used for heat exchange with the electrically controlled heating element; The second end of the heat conducting pipe is higher than the first end of the heat conducting pipe so that the gaseous refrigerant flows into the heat conducting pipe.

2. The heat dissipation assembly for an air conditioner according to claim 1, characterized in that: The second end of the heat conducting pipe is a closed end.

3. The heat dissipation assembly for an air conditioner according to claim 1, characterized in that: The second end of the heat conducting pipe is suitable for being connected between the evaporator and the compressor.

4. The heat dissipation assembly for an air conditioner according to claim 1, characterized in that: The heat conducting portion comprises a straight line segment, and the straight line segment extends in a straight line along the electrically controlled heating element; and / or, The heat conducting portion comprises a curved section, and the curved section extends along the electrically controlled heating element in a curved shape; and / or, The heat conduction part comprises a heat conduction chamber, and the size of the heat conduction chamber is matched with the size of the electrically controlled heating element.

5. The heat dissipation assembly for an air conditioner according to any one of claims 1 to 4, characterized in that: The heat pipe is made of heat conductive material.

6. The heat dissipation assembly for an air conditioner according to claim 5, characterized in that: Also includes: The heat diffuser is suitable for contacting both the heat conducting part and the electrically controlled heating element, so that the heat of the electrically controlled heating element is transferred to the heat conducting part through the heat diffuser.

7. The heat dissipation assembly for an air conditioner according to claim 6, characterized in that: A flow channel is provided in the heat diffuser, one end of which is connected to the heat conducting pipe so that the gaseous refrigerant flows into the flow channel, and the outer surface of the heat diffuser is suitable for fitting with the electric-controlled heating element; or, The heat diffuser comprises a first surface and a second surface. The first surface of the heat diffuser is in contact with the heat conducting part, and the second surface of the heat diffuser is suitable for being in contact with the electrically controlled heating element.

8. The heat dissipation assembly for an air conditioner according to any one of claims 1 to 4, characterized in that: The radial cross section of the first end of the heat conducting pipe is a circular cross section, and the radial cross section of the second end of the heat conducting pipe is a rectangular cross section.

9. An air conditioner, characterized in that: include: A refrigerant circulation loop, including a compressor, a condenser, a throttling device and an evaporator connected in sequence; Electrically controlled heating element; According to any one of claims 1 to 8, the heat dissipation assembly for an air conditioner, the first end of the heat pipe is connected between the throttling device and the evaporator, and the second end of the heat pipe corresponds to the electrically controlled heating element and is used for heat exchange with the electrically controlled heating element.

10. The air conditioner according to claim 9, characterized in that: The refrigerant circulation loop also includes a main pipe, one end of which is connected to the throttling device, the other end of which is connected to the evaporator, and the first end of the heat conduction pipe is connected to the main pipe. The inner diameter of the heat conducting pipe is smaller than the inner diameter of the main pipe; and / or, The height difference between the electric heating element and the main pipe is greater than or equal to 20 mm.

Images