Air conditioner

Abstract

The embodiment of the utility model discloses an air conditioner. The air conditioner comprises an electric control module, a main loop and a bypass branch. The main loop comprises a first refrigerant heat exchange pipe, a condenser, a heat dissipation module, a first flow control valve and an evaporator, the condenser, the heat dissipation module, the first flow control valve and the evaporator are sequentially communicated through the first refrigerant heat exchange pipe, and the heat dissipation module is arranged close to the electric control module. The bypass branch comprises a second refrigerant heat exchange pipe, the first end of the second refrigerant heat exchange pipe communicates with the first refrigerant heat exchange pipe between the condenser and the heat dissipation module, and the second end of the second refrigerant heat exchange pipe communicates with the first refrigerant heat exchange pipe between the first flow control valve and the heat dissipation module. A refrigerant flowing out of the condenser at least can flow to the evaporator through the main loop, and the refrigerant flowing through the heat dissipation module can exchange heat with the electric control module. And a refrigerant flowing out of the evaporator at least can flow to the condenser through the bypass branch. Heat dissipation of the electric control module is facilitated, and condensation on the electric control module is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0002] The air conditioner's electronic control module (ECM) controls various operating parameters and must operate at an appropriate temperature. In related technologies, refrigerant is used to dissipate heat from the ECM. However, when low-temperature refrigerant passes near the ECM, condensation can easily form on the ECM's low-temperature areas. This condensation can affect the ECM's operational safety. Utility Model Content

[0003] In view of this, the embodiments of the present application hope to provide an air conditioner that is conducive to the heat dissipation of the electronic control module and reduces the probability of condensation water forming on the electronic control module during the heat dissipation process.

[0004] An embodiment of the present application provides an air conditioner, comprising:

[0005] Electronic control module;

[0006] A main circuit, comprising a first refrigerant heat exchange tube, a condenser, a heat dissipation module, a first flow control valve, and an evaporator, wherein the condenser, the heat dissipation module, the first flow control valve, and the evaporator are sequentially connected through the first refrigerant heat exchange tube, and the heat dissipation module is disposed near the electronic control module;

[0007] a bypass branch, the bypass branch comprising a second refrigerant heat exchange pipe, a first end of the second refrigerant heat exchange pipe being connected to the first refrigerant heat exchange pipe between the condenser and the heat dissipation module, and a second end of the second refrigerant heat exchange pipe being connected to the first refrigerant heat exchange pipe between the first flow control valve and the heat dissipation module;

[0008] The refrigerant flowing out of the condenser can at least flow to the evaporator through the main circuit, and the refrigerant flowing through the heat dissipation module can exchange heat with the electronic control module; the refrigerant flowing out of the evaporator can at least flow to the condenser through the bypass branch.

[0009] In one embodiment, in a cooling state, a portion of the refrigerant flowing out of the condenser can flow to the evaporator through the main circuit, and another portion of the refrigerant can flow to the evaporator through the bypass branch.

[0010] In one embodiment, in a heating state, the refrigerant flowing out of the evaporator flows to the condenser through the bypass branch.

[0011] In one embodiment, the main circuit includes a second flow control valve, which is arranged on the first refrigerant heat exchange tube between the first flow control valve and the heat dissipation module, and the second end of the bypass branch is connected to the first refrigerant heat exchange tube between the first flow control valve and the second flow control valve.

[0012] In one embodiment, the second flow control valve is a second throttle valve, and the second throttle valve can be used to control the refrigerant flow in the main circuit.

[0013] In one embodiment, the second throttle valve is a one-way valve, and the refrigerant flowing out of the heat dissipation module can flow to the first flow control valve through the one-way valve.

[0014] In one embodiment, the second throttle valve is an electric shut-off valve.

[0015] In one embodiment, the first flow control valve is a first throttle valve, and the first throttle valve is an electronic expansion valve; and / or,

[0016] The second throttle valve is an electronic expansion valve.

[0017] In one embodiment, the heat dissipation module includes a heat exchange fan, and the heat exchange fan is used to dissipate heat from the electronic control module.

[0018] In one embodiment, the heat dissipation module includes a temperature sensing element, which is disposed in the electronic control module and is used to detect the temperature of the electronic control module.

[0019] The air conditioner provided by the embodiment of the present application is provided with a heat dissipation module in the main circuit, and the heat dissipation module is close to the electronic control module. In this way, the refrigerant flowing through the heat dissipation module can exchange heat with the electronic control module, thereby dissipating heat from the electronic control module. The heat dissipation module is provided between the first flow control valve and the condenser. During cooling, the refrigerant flowing out of the condenser first flows through the heat dissipation module for heat exchange and temperature increase, and then cools down through the throttling effect of the first flow control valve. In this way, the refrigerant flowing through the heat dissipation module is higher in temperature than the refrigerant before and after flowing into the heat dissipation module. In this way, the lowest temperature area is not on the electronic control module, and water vapor is not easy to condense on the electronic control module, thereby reducing the impact of condensed water on the operational safety of the electronic control module. The addition of the bypass branch allows the refrigerant flowing out of the evaporator to at least flow to the condenser through the bypass branch, which increases the circulation route of the refrigerant and reduces the circulation resistance of the refrigerant. In addition, the first flow control valve is arranged on one side of the evaporator through which the refrigerant circulation needs to pass. In this way, only one first flow control valve needs to be set to control the refrigerant flow of the main circuit and the bypass branch, thereby realizing the controllable refrigerant flow during the refrigeration cycle and the heating cycle. At the same time, the number of flow control valves set is reduced, saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the refrigerant circulation of an air conditioner in a cooling state according to an embodiment of the present application;

[0021] Figure 2 Schematic diagram of refrigerant circulation of an air conditioner in heating mode according to an embodiment of the present application.

[0022] Description of Reference Numerals

[0023] 100. Air conditioner; 1. Electronic control module; 2. Main circuit; 21. First refrigerant heat exchange tube; 22. Condenser; 23. Heat dissipation module; 231. Heat exchange fan; 232. Temperature sensing element; 24. First flow control valve; 241. First throttle valve; 25. Evaporator; 26. Second flow control valve; 261. Second throttle valve; 3. Bypass branch; 31. Second refrigerant heat exchange tube. DETAILED DESCRIPTION

[0024] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of this application, the technical terms "first," "second," "third," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0027] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0029] In the description of the embodiments of the present application, the technical terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "circumferential", "height direction", "first direction", "second direction", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0030] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0032] The present invention provides an air conditioner 100. Figure 1 and Figure 2The air conditioner 100 includes an electronic control module 1, a main circuit 2, and a bypass branch 3. The main circuit 2 includes a first refrigerant heat exchange pipe 21, a condenser 22, a heat dissipation module 23, a first flow control valve 24, and an evaporator 25. The condenser 22, the heat dissipation module 23, the first flow control valve 24, and the evaporator 25 are sequentially connected through the first refrigerant heat exchange pipe 21. The heat dissipation module 23 is located near the electronic control module 1. The bypass branch 3 includes a second refrigerant heat exchange pipe 31. The first end of the second refrigerant heat exchange pipe 31 is connected to the first refrigerant heat exchange pipe 21 between the condenser 22 and the heat dissipation module 23. The second end of the second refrigerant heat exchange pipe 31 is connected to the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the heat dissipation module 23. The refrigerant flowing out of the condenser 22 can at least flow to the evaporator 25 through the main circuit 2, and the refrigerant flowing through the heat dissipation module 23 can exchange heat with the electronic control module 1; the refrigerant flowing out of the evaporator 25 can at least flow to the condenser 22 through the bypass branch 3.

[0033] The air conditioner 100 is an electrical device that regulates indoor air temperature, humidity and other parameters. It absorbs and releases heat by circulating a refrigerant (such as Freon or other refrigerants) in a closed pipeline, thereby achieving the purpose of cooling or heating.

[0034] The electronic control module 1 is the control center of the air conditioner 100 and is responsible for controlling various operating parameters of the air conditioner 100, such as the speed of the compressor, the speed of the fan, the monitoring of the temperature sensor, etc. It contains electronic components such as circuit boards, chips, sensors, etc., and accurately controls the various components of the air conditioner 100 by receiving user operating instructions and environmental parameter feedback. The electronic control module 1 generates a large amount of heat when working. When the temperature of the electronic control module 1 is not high, heat dissipation can be achieved by heat exchange with the air (this heat dissipation method is passive heat dissipation). When the temperature of the electronic control module 1 is too high, the heat exchange of the air cannot completely remove the heat from the electronic control module 1. Additional heat dissipation equipment is required for active heat dissipation to reduce the damage caused to the electronic control module 1 by heat accumulation.

[0035] The heat dissipation module 23 is a component used to dissipate heat. In the air conditioner 100, the heat dissipation module 23 is located near the electronic control module 1. By exchanging heat with the refrigerant flowing through it, the heat generated by the electronic control module 1 is removed, thereby cooling the electronic control module 1 and controlling its operation within a normal temperature range.

[0036] The specific structure of the heat dissipation module 23 is not limited here.

[0037] For example, the heat dissipation module 23 is a heat dissipation fin. The refrigerant can flow through the heat dissipation fin to take away the heat absorbed by the heat dissipation fin from the electronic control module 1. In addition, the heat dissipation fin transfers the heat to the air through large-area contact with the air.

[0038] In some embodiments, the heat dissipation module 23 is an S-shaped structure formed by bending the first refrigerant heat exchange tube 21. The heat dissipation module 23 is close to the electronic control module 1. The S-shaped structure increases the heat dissipation area. The first refrigerant heat exchange tube 21 absorbs the heat generated by the electronic control module 1 when passing through the S-shaped structure.

[0039] The first and second refrigerant heat exchange tubes 21 and 31 are pipes used to transport refrigerant and exchange heat. As the refrigerant flows through the pipes, it transfers heat to the surrounding environment or other components. These pipes are typically made of materials with good thermal conductivity and sealing properties to ensure proper refrigerant circulation and efficient heat exchange.

[0040] The materials of the first refrigerant heat exchange tube 21 and the second refrigerant heat exchange tube 31 are not limited here, and any material with good thermal conductivity can be used, such as copper, aluminum, and graphene.

[0041] The condenser 22 here refers to a device into which high-temperature and high-pressure gaseous refrigerant enters during the refrigeration cycle of the air conditioner 100, and releases heat by exchanging heat with external media such as air or water, thereby condensing the gaseous refrigerant into liquid refrigerant.

[0042] The evaporator 25 here refers to a device in which liquid refrigerant evaporates in the refrigeration cycle of the air conditioner 100, absorbing heat from the surrounding environment (such as indoor air) to achieve the purpose of cooling.

[0043] It should be noted that during the heating process, the functions of the condenser 22 and the evaporator 25 are interchanged. Here, for the sake of convenience, the condenser 22 and the evaporator 25 are distinguished by the functional role they play during the cooling process.

[0044] The first flow control valve 24 is used to control the flow of refrigerant in the main loop 2. By adjusting the valve opening, the flow rate and volume of the refrigerant in the main loop 2 can be changed, thereby affecting the cooling or heating effect of the air conditioner 100. The flow control valve can precisely control the refrigerant flow according to different operating conditions (such as indoor and outdoor temperature, load demand, etc.) based on the instructions of the electronic control module 1.

[0045] In the refrigerant circulation system of air conditioner 100, main loop 2 is the primary path through which the refrigerant primarily flows. It connects the main heat exchange components of air conditioner 100, such as condenser 22 and evaporator 25. The circulation of the refrigerant in main loop 2 transfers and exchanges heat, thereby achieving cooling or heating functions.

[0046] Bypass branch 3 is a refrigerant circulation branch running parallel to main circuit 2. It provides an alternative flow path for the refrigerant. Under specific operating conditions or control strategies, the refrigerant can circulate through bypass branch 3 to meet different operating requirements.

[0047] In the main circuit 2, after flowing out of the condenser 22, the refrigerant passes through the heat dissipation module 23 and the first flow control valve 24 in sequence, and finally reaches the evaporator 25. During this process, the refrigerant flowing through the heat dissipation module 23 can exchange heat with the electronic control module 1, which helps to dissipate heat from the electronic control module 1 and prevent it from overheating.

[0048] After exiting evaporator 25, the refrigerant in bypass branch 3 can flow through bypass branch 3 to condenser 22. The design of bypass branch 3 allows the refrigerant to flow from evaporator 25 to condenser 22 via bypass branch 3 during the cooling cycle, reducing the refrigerant's flow resistance. During the heating cycle, the refrigerant can also flow from evaporator 25 to condenser 22 via bypass branch 3, providing multiple refrigerant circulation routes to accommodate different usage requirements.

[0049] The air conditioner 100 provided in the embodiment of the present application has a heat dissipation module 23 disposed in the main circuit 2, and the heat dissipation module 23 is located close to the electronic control module 1. This allows the refrigerant flowing through the heat dissipation module 23 to exchange heat with the electronic control module 1, thereby dissipating heat from the electronic control module 1. The heat dissipation module 23 is disposed between the first flow control valve 24 and the condenser 22. During cooling, the refrigerant flowing out of the condenser 22 first flows through the heat dissipation module 23 for heat exchange and temperature increase, and then cools down due to the throttling effect of the first flow control valve 24. As a result, the refrigerant flowing through the heat dissipation module 23 is at a higher temperature than the refrigerant before and after entering the heat dissipation module 23. This means that the lowest temperature region is not located on the electronic control module 1, making it less likely for water vapor to condense on the electronic control module 1, thereby reducing the impact of condensed water on the operational safety of the electronic control module 1. The addition of the bypass branch 3 allows the refrigerant flowing out of the evaporator 25 to at least flow through the bypass branch 3 to the condenser 22, thereby increasing the refrigerant circulation route and reducing the refrigerant flow resistance. In addition, the first flow control valve 24 is set on one side of the evaporator 25 through which the refrigerant circulation needs to pass. In this way, only one first flow control valve 24 needs to be set to control the refrigerant flow of the main circuit 2 and the bypass branch 3, thereby realizing the controllable refrigerant flow during the refrigeration cycle and the heating cycle. At the same time, the number of flow control valves set is reduced, saving production costs.

[0050] In some embodiments, see Figure 1 and Figure 2 In the cooling state, a portion of the refrigerant flowing out of the condenser 22 can flow to the evaporator 25 through the main circuit 2, and another portion of the refrigerant can flow to the evaporator 25 through the bypass branch 3.

[0051] The cooling mode refers to the operating mode in which the air conditioner 100 transfers indoor heat to the outside through the refrigerant circulation, thereby reducing the indoor temperature. In this mode, the refrigerant circulates within the system along a specific path and changes state to achieve the cooling function. Here, the refrigerant flows from the condenser 22 to the evaporator 25.

[0052] A portion of the refrigerant flowing out of the condenser 22 can flow to the evaporator 25 through the main circuit 2. In this way, the refrigerant coming out of the condenser 22 can flow through the heat dissipation module 23 through the main circuit 2. Through the heat dissipation module 23, the refrigerant exchanges heat with the electronic control module 1 to achieve temperature control of the electronic control module 1.

[0053] Another part of the refrigerant can flow to the evaporator 25 through the bypass branch 3. The setting of the bypass branch 3 can increase the number of paths for the refrigerant to flow from the condenser 22 to the evaporator 25, reduce the resistance to the refrigerant flow, and improve the efficiency of the refrigerant circulation.

[0054] Here, it should be noted that, when the first flow control valve 24 is in the cooling state, no matter whether the refrigerant flows through the main circuit 2 or the bypass branch 3, it must converge and flow to the evaporator 25. The first flow control valve 24 is set before the refrigerant converges and flows into the evaporator 25, which can simultaneously realize the flow control of the refrigerant in the main circuit 2 and the bypass branch 3.

[0055] By allowing a portion of the refrigerant flowing out of the condenser 22 to flow to the evaporator 25 through the main circuit 2, and the other portion of the refrigerant to flow to the evaporator 25 through the bypass branch 3, on the one hand, the heat dissipation function of the heat dissipation module 23 can be realized, and on the other hand, through the diversion of the refrigerant, the flow distribution of the refrigerant in different paths can be flexibly adjusted according to the actual refrigeration needs, thereby reducing the resistance to the flow of the refrigerant. When part of the refrigerant flows through the bypass branch 3, the problem of excessive or low pressure that may occur in the main circuit 2 can be alleviated to a certain extent, so that the entire refrigerant circulation system can operate more stably, reducing the adverse effects of pressure fluctuations on components such as the compressor.

[0056] In some embodiments, see Figure 1 and Figure 2 In the heating state, the refrigerant flowing out of the evaporator 25 flows to the condenser 22 through the bypass branch 3.

[0057] The heating mode refers to an operating mode of the air conditioner 100. In this mode, the air conditioner 100 transfers outdoor heat into the room through the refrigerant circulation, thereby raising the indoor temperature. In contrast to the cooling mode, the refrigerant flow direction, state changes, and the functions of various components differ during the heating process. Here, the refrigerant flows from the evaporator 25 to the condenser 22.

[0058] When the heating mode is on, the outside temperature is typically low. At this time, the air temperature is low, enabling good heat dissipation of the electronic control module 1, eliminating the need for active heat dissipation by the heat dissipation module 23. Thus, by providing the bypass branch 3, in the heating mode, all refrigerant flowing out of the evaporator 25 flows through the bypass branch 3 to the condenser 22. The refrigerant does not need to flow through the heat dissipation module 23, but flows directly through the bypass branch 3 to the condenser 22, thereby shortening the refrigerant flow path and improving the refrigerant circulation efficiency.

[0059] In some embodiments, see Figure 1 and Figure 2 The main circuit 2 includes a second flow control valve 26, which is arranged on the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the heat dissipation module 23, and the second end of the bypass branch 3 is connected to the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the second flow control valve 26.

[0060] Second flow control valve 26 is a device used to control the flow of refrigerant in primary circuit 2. By adjusting the valve opening, the flow rate and volume of the refrigerant within a specific piping section can be changed, thereby affecting the cooling or heating performance of air conditioner 100. Similar to first flow control valve 24, it can precisely control the refrigerant flow rate under the control of electronic control module 1 according to different operating conditions (such as indoor and outdoor temperature, load demand, etc.).

[0061] A second flow control valve 26 is installed on the first refrigerant heat exchange tube 21 of the main circuit 2, between the first flow control valve 24 and the heat dissipation module 23. Simultaneously, the second end of the bypass branch 3 is connected to the first refrigerant heat exchange tube 21 between the first flow control valve 24 and the second flow control valve 26. This means that during the refrigerant circulation process, the refrigerant flow rate in the main circuit 2 can be adjusted at two different control points (the first flow control valve 24 and the second flow control valve 26).

[0062] In addition, in the heating state, the second flow control valve 26 can control the flow of the refrigerant flowing out of the evaporator 25 to the heat dissipation module 23.

[0063] For example, in the heating state, when the ambient air temperature cannot meet the heat dissipation requirements of the electronic control module 1, or the large amount of heat generated by the high-load operation of the electronic control module 1 cannot be dissipated by the air, the second flow control valve 26 can control part of the refrigerant to flow through the heat dissipation module 23 for auxiliary heat dissipation.

[0064] For example, in the heating state, when the ambient air temperature meets the heat dissipation requirement of the electronic control module 1 , the second flow control valve 26 is closed, and the refrigerant only flows from the bypass branch 3 to the condenser 22 .

[0065] The second flow control valve 26 allows for more precise refrigerant flow regulation in the main circuit 2 during cooling or heating. The second flow control valve 26 works in conjunction with the first flow control valve 24 to provide segmented control of the refrigerant flow according to different operating stages and operating conditions.

[0066] In some embodiments, see Figure 1 and Figure 2 The second flow control valve 26 is a second throttle valve 261 , which can be used to control the refrigerant flow in the main circuit 2 .

[0067] A throttle valve is a device that regulates fluid flow and pressure by changing the area of ​​a channel. In the refrigerant circulation system of air conditioner 100, second throttle valve 261 (serving as second flow control valve 26) is specifically used to control the refrigerant flow in main loop 2. It reduces the cross-sectional area of ​​the refrigerant channel, causing a pressure drop as the refrigerant flows through it, thereby regulating the refrigerant's flow rate and volume. The throttle valve opening directly affects the refrigerant flow rate in main loop 2, and thus the cooling or heating performance of the entire air conditioner 100.

[0068] The specific type of the second throttle valve 261 is not limited here.

[0069] Second flow control valve 26 is a second throttle valve 261, which precisely controls the refrigerant flow in main circuit 2. When the cooling or heating capacity of air conditioner 100 needs to be adjusted, second throttle valve 261 can change its opening according to instructions from electronic control module 1, thereby adjusting the refrigerant flow in main circuit 2. For example, when cooling demand is high, second throttle valve 261 may open wider, allowing more refrigerant to flow through main circuit 2, thereby improving the cooling effect of evaporator 25. During heating, the opening is similarly adjusted according to actual demand to ensure an appropriate refrigerant flow for efficient heat transfer.

[0070] In some embodiments, see Figure 1 and Figure 2 The second throttle valve 261 is a one-way valve, and the refrigerant flowing out of the heat dissipation module 23 can flow to the first flow control valve 24 through the one-way valve.

[0071] A check valve is a valve that only allows fluid to flow in one direction.

[0072] In some embodiments, the one-way valve not only restricts the flow direction of the refrigerant but also acts as a throttling mechanism to control the refrigerant flow rate. The one-way valve can regulate the flow rate of the refrigerant flowing from the heat dissipation module 23 to the first flow control valve 24 based on its structural characteristics (such as the design of the valve core and valve seat) and the valve opening.

[0073] By configuring the second throttle valve 261 as a one-way valve, the refrigerant flowing out of the heat dissipation module 23 can only flow in a specific direction, namely, through the one-way valve to the first flow control valve 24. This ensures that the refrigerant flow path in this local area is unidirectional, limiting the reverse flow of the refrigerant during heating, and ensuring the stability and orderliness of the refrigerant circulation system under different operating conditions.

[0074] In some embodiments, see Figure 1 and Figure 2 , the second throttle valve 261 is an electric stop valve.

[0075] An electric shutoff valve uses an electric actuator to control the degree of opening and closing. The shutoff valve operates by sealing the valve disc against the valve seat, controlling the flow of fluid. In the refrigerant circulation system of the air conditioner 100, the electric shutoff valve, acting as the second throttle valve 261, precisely controls the flow of refrigerant in the main circuit 2. The electric actuator receives signals from the electronic control module 1 and adjusts the valve opening according to pre-set programming or real-time operating conditions, thereby varying the refrigerant flow rate.

[0076] The second throttle valve 261 is set as an electric stop valve. In this way, the control of the refrigerant flow rate can be achieved by the electric stop valve. In the process of the refrigerant flowing out of the heat dissipation module 23 and flowing to the first flow control valve 24, the electric stop valve can adjust the refrigerant flow rate according to different cooling or heating requirements. For example, when the cooling demand is large, the electric stop valve can increase the opening to allow more refrigerant to pass through to improve the cooling efficiency; when heating, the opening is adjusted according to the specific requirements of heating to ensure the appropriate refrigerant flow to achieve effective heat transfer. At the same time, this is also conducive to improving the degree of automation of the air conditioner 100.

[0077] In some embodiments, see Figure 1 and Figure 2 The first flow control valve 24 is a first throttle valve 241 , and the first throttle valve 241 is an electronic expansion valve.

[0078] In some embodiments, see Figure 1 and Figure 2 , the second throttle valve 261 is an electronic expansion valve.

[0079] An electronic expansion valve is a special throttle valve whose opening is precisely adjusted by an electronic control device. It can precisely control the flow of refrigerant based on various operating parameters (such as temperature and pressure), thereby precisely adjusting the cooling or heating effect of the air conditioner 100. Compared with traditional throttling devices, electronic expansion valves offer higher control accuracy and faster response.

[0080] The first throttle valve 241 and the second throttle valve 261 are both configured as electronic expansion valves. Thus, in the main circuit 2 and related branches of the refrigerant circulation, the refrigerant flow rate can be controlled by the electronic expansion valve. The electronic expansion valve can accurately adjust the valve opening according to the operating state of the air conditioner 100 (such as cooling or heating mode, indoor and outdoor temperature difference, load demand, etc.), thereby changing the flow rate and pressure of the refrigerant. For example, during the cooling process, when the indoor temperature is high and needs to be cooled quickly, the electronic expansion valve can increase the opening, allowing more refrigerant to flow through the evaporator 25, thereby improving the cooling efficiency; during heating, the opening is adjusted according to the indoor and outdoor temperature difference and the set temperature to achieve appropriate heat transfer. At the same time, this also helps to improve the degree of automation of the air conditioner 100.

[0081] In some embodiments, see Figure 1 and Figure 2 The heat dissipation module 23 includes a heat exchange fan 231 , which is used to dissipate heat for the electronic control module 1 .

[0082] Heat exchange fan 231 is a component of heat dissipation module 23. It uses the rotation of fan blades to promote air flow. Within heat dissipation module 23, heat exchange fan 231 enhances heat dissipation by forcing air to flow. It removes heat from the surface of an object (here, electronic control module 1) and dissipates it into the surrounding environment, thereby reducing the object's temperature.

[0083] Heat exchange fan 231 is a component of heat dissipation module 23. It uses the rotation of fan blades to promote air flow. Within heat dissipation module 23, heat exchange fan 231 enhances heat dissipation by forcing air to move. It removes heat from the surface of an object (here, electronic control module 1) and dissipates it into the surrounding environment, thereby reducing the object's temperature.

[0084] It should be noted that the operation of the heat exchange fan 231 is independent of whether the refrigerant passes through the heat dissipation module 23. The heat dissipation module 23 can dissipate heat from the electronic control module 1 independently or assist the refrigerant passing through the heat dissipation module 23 to dissipate heat from the electronic control module 1.

[0085] The heat exchange fan 231 helps enhance the heat dissipation of the electronic control module 1. The electronic components in the electronic control module 1 are sensitive to temperature. Effective heat dissipation prevents overheating, which can lead to performance degradation, shortened lifespan, or even damage. By continuously removing heat from the heat exchange fan 231, the electronic control module 1 can operate stably at an appropriate temperature, thereby improving its reliability and service life.

[0086] In some embodiments, see Figure 1 and Figure 2The heat dissipation module 23 includes a temperature sensing element 232 . The temperature sensing element 232 is disposed at the electronic control module 1 and is used to detect the temperature of the electronic control module 1 .

[0087] The temperature sensing element 232 is a device that can sense temperature changes and convert them into a measurable signal (such as an electrical signal). Common temperature sensing elements 232 include thermistors and thermocouples. In this heat dissipation module 23, the temperature sensing element 232 is installed on the electronic control module 1. Its primary task is to accurately detect the temperature of the electronic control module 1 to provide a basis for subsequent temperature control and heat dissipation adjustment.

[0088] The specific type of the temperature sensing element 232 is not limited here.

[0089] The temperature sensing element 232 is provided on the electronic control module 1 and senses the temperature of the electronic control module 1 through its own physical properties. For example, the resistance value of a thermistor changes with changes in temperature, and a thermocouple generates a potential difference related to the temperature difference. When the electronic control module 1 generates heat during operation, causing the temperature to rise or fall, the temperature sensing element 232 can detect these temperature changes in real time and transmit the corresponding signal to the relevant control unit (such as the control circuit in the electronic control module 1 of the air conditioner 100). In this way, the system can adjust the working state of the heat dissipation module 23 according to the temperature information fed back by the temperature sensing element 232, such as controlling the speed of the heat exchange fan 231 or the flow rate of the refrigerant, etc., which is also conducive to improving the degree of automation of the air conditioner 100.

[0090] Next, the operation of the air conditioner 100 will be described.

[0091] In some embodiments, an air conditioner 100 includes an electronic control module 1, a main circuit 2, and a bypass branch 3. The main circuit 2 includes a first refrigerant heat exchange pipe 21, a condenser 22, a heat dissipation module 23, a first flow control valve 24, and an evaporator 25. The condenser 22, the heat dissipation module 23, the first flow control valve 24, and the evaporator 25 are sequentially connected through the first refrigerant heat exchange pipe 21. The heat dissipation module 23 is located near the electronic control module 1. The bypass branch 3 includes a second refrigerant heat exchange pipe 31. The first end of the second refrigerant heat exchange pipe 31 connects to the first refrigerant heat exchange pipe 21 between the condenser 22 and the heat dissipation module 23, and the second end of the second refrigerant heat exchange pipe 31 connects to the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the heat dissipation module 23. The refrigerant flowing out of the condenser 22 can flow through the main circuit 2 to the evaporator 25 at least. The refrigerant flowing through the heat dissipation module 23 can exchange heat with the electronic control module 1. The refrigerant flowing out of the evaporator 25 can at least flow to the condenser 22 through the bypass branch 3 .

[0092] Among them, the main circuit 2 includes a second flow control valve 26, which is arranged on the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the heat dissipation module 23. The second end of the bypass branch 3 is connected to the first refrigerant heat exchange pipe 21 between the first flow control valve 24 and the second flow control valve 26. The second throttle valve 261 is an electric stop valve. The first flow control valve 24 is the first throttle valve 241, which is an electronic expansion valve. The heat dissipation module 23 includes a heat exchange fan 231 and a temperature sensing element 232. The heat exchange fan 231 is used to dissipate heat from the electronic control module 1. The temperature sensing element 232 is arranged on the electronic control module 1 to detect the temperature of the electronic control module 1. The air conditioner 100 has a cooling mode and a heating mode.

[0093] The air conditioner 100 is turned on and the user inputs the working mode command. In the cooling mode, the electric shut-off valve is in the open state, the heat exchange fan 231 is in the closed state, and the temperature sensing element 232 is in operation. A portion of the refrigerant flowing out of the condenser 22 can first flow through the heat dissipation module 23 through the main circuit 2. The refrigerant passing through the heat dissipation module 23 exchanges heat with the electronic control module 1, dissipating heat from the electronic control module 1. Another portion of the refrigerant can flow to the evaporator 25 through the bypass branch 3. The electronic expansion valve regulates the refrigerant flow. When the temperature sensing element 232 senses that the temperature of the electronic control module 1 is greater than or equal to the preset temperature, the heat exchange fan 231 is turned on to assist in heat dissipation until the temperature sensed by the temperature sensing element 232 is less than the preset temperature, at which point the heat exchange fan 231 is turned off.

[0094] Air conditioner 100 is turned on and the user enters an operating mode command. In heating mode, the electric shutoff valve is closed, the heat exchange fan 231 is off, and the temperature sensor 232 is operating. Refrigerant flowing from evaporator 25 flows through bypass branch 3 to condenser 22. An electronic expansion valve regulates the refrigerant flow. When the temperature sensor 232 detects that the temperature of electronic control module 1 is greater than or equal to a preset temperature, the heat exchange fan 231 turns on to assist in heat dissipation. The temperature sensor 232 senses a temperature below the preset temperature, at which point the heat exchange fan 231 turns off.

[0095] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0096] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An air conditioner, characterized in that: The air conditioner comprises: Electronic control module; A main circuit, comprising a first refrigerant heat exchange tube, a condenser, a heat dissipation module, a first flow control valve, and an evaporator, wherein the condenser, the heat dissipation module, the first flow control valve, and the evaporator are sequentially connected through the first refrigerant heat exchange tube, and the heat dissipation module is disposed near the electronic control module; a bypass branch, the bypass branch comprising a second refrigerant heat exchange pipe, a first end of the second refrigerant heat exchange pipe being connected to the first refrigerant heat exchange pipe between the condenser and the heat dissipation module, and a second end of the second refrigerant heat exchange pipe being connected to the first refrigerant heat exchange pipe between the first flow control valve and the heat dissipation module; The refrigerant flowing out of the condenser can at least flow to the evaporator through the main circuit, and the refrigerant flowing through the heat dissipation module can exchange heat with the electronic control module; the refrigerant flowing out of the evaporator can at least flow to the condenser through the bypass branch.

2. The air conditioner according to claim 1, characterized in that In the cooling state, a portion of the refrigerant flowing out of the condenser can flow to the evaporator through the main circuit, and another portion of the refrigerant can flow to the evaporator through the bypass branch.

3. The air conditioner according to claim 1, characterized in that In the heating state, the refrigerant flowing out of the evaporator flows to the condenser through the bypass branch.

4. The air conditioner according to claim 1, wherein: The main circuit includes a second flow control valve, which is arranged on the first refrigerant heat exchange tube between the first flow control valve and the heat dissipation module, and the second end of the bypass branch is connected to the first refrigerant heat exchange tube between the first flow control valve and the second flow control valve.

5. The air conditioner according to claim 4, characterized in that The second flow control valve is a second throttle valve, and the second throttle valve can be used to control the refrigerant flow in the main circuit.

6. The air conditioner according to claim 5, characterized in that The second throttle valve is a one-way valve, and the refrigerant flowing out of the heat dissipation module can flow to the first flow control valve through the one-way valve.

7. The air conditioner according to claim 5, characterized in that The second throttle valve is an electric stop valve.

8. The air conditioner according to any one of claims 1 to 5, characterized in that: The first flow control valve is a first throttle valve, and the first throttle valve is an electronic expansion valve; and / or, The main circuit includes a second flow control valve, the second flow control valve includes a second throttle valve, and the second throttle valve is an electronic expansion valve.

9. The air conditioner according to claim 1, wherein: The heat dissipation module includes a heat exchange fan, and the heat exchange fan is used to dissipate heat for the electronic control module.

10. The air conditioner according to claim 1, wherein The heat dissipation module includes a temperature sensing element, which is arranged on the electric control module and is used to detect the temperature of the electric control module.

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