Heat pipe heat transfer device and control method, system and storage medium

Abstract

The application provides a heat pipe type heat transfer device and a control method, system and storage medium. The heat transfer device comprises an evaporating pipe section, a condensing pipe section, a first intermediate pipe section and a second intermediate pipe section. The evaporating pipe section is arranged on a compressor to absorb heat dissipation of the compressor. The condensing pipe section is arranged on a bottom plate to release heat to the bottom plate. The first intermediate pipe section is connected to the evaporating pipe section at an inlet end and connected to the condensing pipe section at an outlet end. The second intermediate pipe section is connected to the condensing pipe section at an inlet end and connected to the evaporating pipe section at an outlet end. The evaporating pipe section, the condensing pipe section, the first intermediate pipe section and the second intermediate pipe section form a circulation loop, the circulation loop contains a heat transfer medium, and the inner wall surface of the second intermediate pipe section is provided with a capillary structure. A valve is arranged on the circulation loop, and the valve can be controlled to make the circulation loop conductive or off. The scheme provided by the application can improve heat dissipation control of the compressor and waste heat utilization.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning equipment technology, specifically relating to a heat pipe heat transfer device, control method, system, and storage medium. Background Technology

[0002] Air conditioners are widely used. When used in high-temperature areas, the high ambient temperature can easily cause the compressor to overheat, leading to frequent issues like limiting output, reducing frequency, or even shutting down for protection. This restricts the air conditioner's output capacity, affecting user comfort and potentially impacting the compressor's long-term reliability and shortening its lifespan. Conversely, when used in low-temperature areas, the outdoor unit's chassis is prone to icing, affecting the condenser's heat exchange efficiency. Once the ice layer accumulates to a certain thickness, it will interfere with the fan blades, causing damage. Furthermore, once the chassis is frozen, the ice layer can compress the copper pipes at the bottom of the condenser, potentially leading to deformation and rupture.

[0003] To prevent compressor overheating in high-temperature environments, variable frequency compressors often use methods such as limiting or reducing the compressor's operating frequency to maintain or reduce the compressor temperature, while fixed frequency compressors use methods such as shutting down to prevent compressor overheating. Both technologies have obvious drawbacks, namely, limiting or reducing the output of cooling capacity when there is high cooling demand.

[0004] Meanwhile, to prevent the chassis from freezing, existing technologies use electric heating elements to continuously heat the chassis (when the outer ring is below 0°C, the chassis electric heating operates). In the long winters of low-temperature regions, this will lead to a large amount of electricity consumption. Actual measurement data shows that under negative temperature conditions on the outer ring, the waste heat temperature of the air conditioning compressor can reach 30~80°C, making it difficult to utilize the waste heat. This is in stark contrast to the high energy consumption of the chassis electric heating.

[0005] Patent CN104110920B discloses an air-source heat pump system for recovering and utilizing compressor waste heat. This system uses a circulating pump to drive a heat storage medium to recover compressor waste heat for condenser defrosting. However, this method does not address the issue of compressor overheating.

[0006] Patent CN102901156B discloses a defrosting system and method for heat pipe air conditioners. It utilizes airflow generated by a fan as a medium and the compressor as a heat source. Through two convection heat transfers, the compressor's waste heat is transferred to a horizontal heat pipe, which then horizontally transfers heat to the condenser, achieving defrosting. However, this method has a low waste heat utilization rate for the air conditioner compressor.

[0007] There are currently no solutions to the technical problems that exist in the operation of the air conditioner compressor; therefore, there is an urgent need to find effective solutions to address these issues. Summary of the Invention

[0008] The purpose of this application is to address the shortcomings of the above-mentioned technologies by proposing a heat pipe heat transfer device, control method, system, and storage medium, aiming to solve the problems of low heat dissipation efficiency of air conditioning compressors under high-temperature conditions, high defrosting and de-icing energy consumption under low-temperature conditions, and inability to utilize waste heat in the prior art.

[0009] This application provides a heat transfer device for an air conditioner outdoor unit, the air conditioner outdoor unit including a compressor and a chassis, characterized in that the heat transfer device includes an evaporator section, a condenser section, and a first intermediate pipe section and a second intermediate pipe section connected between the evaporator section and the condenser section; wherein: The evaporator tube section is used to be installed on the compressor to absorb the heat dissipation of the compressor; The condenser pipe section is used to be installed on the chassis to release heat to the chassis; The inlet end of the first intermediate pipe section is connected to the outlet end of the evaporator pipe section, and the outlet end of the first intermediate pipe section is connected to the inlet end of the condenser pipe section. The inlet end of the second intermediate pipe section is connected to the outlet end of the condenser pipe section, and the outlet end of the second intermediate pipe section is connected to the inlet end of the evaporator pipe section. The evaporator section, the condenser section, and the first and second intermediate pipe sections connected between the evaporator section and the condenser section constitute a circulation loop. The circulation loop contains a heat transfer medium, and the inner wall surface of the second intermediate pipe section is provided with a capillary structure. The circulation loop is equipped with a valve, which can be controlled to open or close the circulation loop according to the operating status of the compressor and / or the frosting condition of the chassis.

[0010] Furthermore, the evaporator tube section is arranged around the compressor housing; The condenser tube section is arranged in a ring around the surface of the chassis; The heat transfer device includes M circulation loops, each of the M circulation loops having M evaporation tube sections and M circulation loops having M condensation tube sections; M evaporator tube segments are arranged sequentially from top to bottom along the outer periphery of the compressor, and M condenser tube segments are arranged sequentially from the outside to the inside along the surface of the chassis, where M ≥ 1.

[0011] Furthermore, the M circulation loops are divided into N circulation loop groups, and the M evaporator tube segments are divided into N groups along the height of the compressor housing. There is a distance between each pair of adjacent evaporator tube segments, and the higher the position of the evaporator tube segment group, the closer its corresponding condenser tube segment group is to the inner side of the chassis surface, M≥N>1.

[0012] Furthermore, the M condenser pipe segments are arranged sequentially from the outside to the inside of the chassis surface, and the closer to the inside of the chassis surface, the lower the position. The pipe surfaces of the M condenser pipe segments form a slope in the radial direction of the chassis surface.

[0013] Furthermore, a heat-conducting layer is provided at the position where the evaporator section is in contact with the compressor housing, and the compressor housing is a metal housing; and / or, a heat-conducting layer is provided at the position where the condenser section is in contact with the surface of the chassis, and the chassis is a metal chassis.

[0014] Furthermore, the evaporator tube section has a replenishment chamber for storing heat transfer medium on its outlet side and a capillary structure on its inlet side.

[0015] Accordingly, embodiments of this application also provide a control method for the above-mentioned heat transfer device, comprising: Determine the compressor's operating condition; When the compressor is in the target compressor operating condition, demand determination parameters are obtained. The demand determination parameters include frequency parameters representing the compressor operating state or characteristic parameters representing the compressor heat dissipation demand. The operating status of the heat transfer device is controlled according to the required parameters.

[0016] Furthermore, determining the compressor operating condition includes: Obtain operating condition determination parameters, which include a first determination parameter under cooling conditions or a second determination parameter under heating conditions; The compressor operating condition is determined based on the operating condition determination parameters. The compressor operating condition includes multiple operating conditions under cooling conditions or multiple operating conditions under heating conditions.

[0017] Further, determining the compressor operating condition based on the operating condition determination parameters includes: In the case of refrigeration, a judgment is made based on the first determination parameter, which includes the refrigerant saturation temperature T. oil and compressor motor temperature T ɑ 1 ; When the refrigerant saturation temperature T oil The compressor motor temperature T ɑ 1 Satisfy T oil ≦T ɑ 1 ≦T max1 At that time, the compressor operates under normal refrigeration conditions, and the T... max1 The first rated temperature; When T ɑ 1 <Toil At that time, the compressor operates under low-temperature refrigeration conditions; When T ɑ 1 >T max1 At that time, the compressor operates under high-temperature refrigeration conditions; In heating mode, the judgment is made based on the second determination parameter, which includes a second determination parameter A for the later stage of compressor startup and / or a second determination parameter B for the early stage of compressor startup. The second determination parameter A includes the indoor unit evaporator pipe temperature T. e 1 and compressor motor temperature T ɑ 2 The second B determination parameter includes the air conditioning chassis temperature; When T e 1 ≤Second rated temperature and T ɑ 2 When the temperature is ≤3 rated temperature, the compressor operates under normal temperature heating conditions; otherwise, the compressor operates under unconventional normal temperature heating conditions. When the temperature of the air conditioner chassis is greater than or equal to the set temperature, the compressor operates in normal temperature heating mode; otherwise, the compressor operates in low temperature heating mode.

[0018] Furthermore, the method also includes: If the compressor operating condition is determined to be the ambient temperature heating condition according to the second B determination parameter, the compressor operating condition is determined to be either the ambient temperature conventional heating condition or the ambient temperature unconventional heating condition according to the second A determination parameter.

[0019] Furthermore, in the case of refrigeration, the compressor operating conditions include conventional refrigeration operating conditions, low-temperature refrigeration operating conditions, and high-temperature refrigeration operating conditions; In heating mode, the compressor operating conditions include normal temperature conventional heating mode and normal temperature unconventional heating mode, or the compressor operating conditions include normal temperature heating mode and low temperature heating mode. The target compressor operating conditions include high-temperature refrigeration conditions under the refrigeration conditions, and normal-temperature unconventional heating conditions and low-temperature heating conditions under the heating conditions.

[0020] Furthermore, when the target compressor operates under either the high-temperature cooling condition or the normal-temperature unconventional heating condition, the demand determination parameter is the characteristic parameter, which includes the compressor outer wall temperature and the air conditioner chassis temperature. At this time, controlling the operating state of the heat transfer device according to the determination parameter includes: If the temperature of the compressor outer wall is greater than or equal to the temperature of the air conditioner chassis, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state. When the target compressor is operating under the low-temperature heating condition, the demand determination parameter is the frequency parameter. At this time, controlling the operating state of the heat transfer device according to the determination parameter includes: If the frequency parameter is greater than the set frequency value, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state and the compressor is controlled to increase its frequency.

[0021] Furthermore, the method also includes: When the heat transfer device is in operation, after a set time, the demand determination parameters are reacquired to re-determine the compressor operating condition based on the demand determination parameters.

[0022] Accordingly, this application also provides a control method for the above-mentioned heat transfer device, comprising the following steps: S100: Receive command; S200: Obtain the corresponding judgment parameters according to the instructions, determine the operating condition of the compressor based on the judgment parameters, and enter the control based on the instructions and operating conditions; The commands include cooling commands and heating commands, and the judgment parameters correspond to the commands.

[0023] Furthermore, the corresponding judgment parameters are obtained according to the instructions, the operating condition of the compressor is determined based on the judgment parameters, and the control is initiated based on the instructions and operating condition, including the following steps: S202: When the instruction is a refrigeration instruction, obtain the first determination parameter and the compressor motor temperature, and determine whether the compressor is in normal refrigeration condition, high temperature refrigeration condition or low temperature refrigeration condition based on the first determination parameter and the compressor motor temperature. S204: Enters refrigeration control based on refrigeration command and operating conditions; The determination parameters include the first determination parameter and the compressor motor temperature.

[0024] Further, obtaining the first determination parameter and the compressor motor temperature, and determining whether the compressor is in normal refrigeration condition, high-temperature refrigeration condition, or low-temperature refrigeration condition based on the first determination parameter and the compressor motor temperature includes the following steps: S202-2: Detecting and obtaining compressor discharge pressure P at interval t. h Based on the compressor discharge pressure P h Obtain the corresponding refrigerant saturation temperature T oil ; S202-4: Detecting and acquiring compressor motor temperature Tɑ 1 and compressor motor temperature T ɑ 1 The corresponding first rated temperature T max1 ; S202-6: When the refrigerant saturation temperature T oil Compressor motor temperature T ɑ 1 and the first rated temperature T max1 Satisfying Relationship: T oil ≦T ɑ 1 ≦T max1 At that time, the compressor is in normal refrigeration operation. T ɑ 1 <T oil At that time, the compressor is in low-temperature refrigeration mode; T ɑ 1 >T max1 At that time, the compressor is in high-temperature refrigeration mode; The first determination parameter includes the compressor discharge pressure P. h Refrigerant saturation temperature T oil and the first rated temperature T max1 .

[0025] Furthermore, the process of entering refrigeration control based on refrigeration commands and operating conditions includes the following steps: S204-2: When the compressor is in normal refrigeration mode, it enters normal refrigeration control based on the refrigeration command; S204-4: When the compressor is in a high-temperature refrigeration condition, obtain the first temperature parameter and control the heat transfer device based on the first temperature parameter. S204-6: When the compressor is in low-temperature refrigeration condition, control the compressor to enter the oil return program.

[0026] Furthermore, the process of obtaining corresponding judgment parameters based on instructions, determining the compressor's operating condition based on these parameters, and then initiating control based on the instructions and operating condition also includes the following steps: S202': When the command is a heating command, obtain the second determination parameter, and determine whether the compressor is in low-temperature heating mode or low-temperature defrosting mode based on the second determination parameter. S204': Enters heating control based on heating command and operating conditions; The determination parameters include the second determination parameter.

[0027] Further, obtaining a second determination parameter, and determining whether the compressor is in low-temperature heating mode or low-temperature defrosting mode based on the second determination parameter, includes the following steps: S202'-2: Detect and acquire chassis temperature T d 1 ; S202'-4: When the chassis temperature T d 1 Satisfying Relationship: T d 1 ≥0, the compressor is in low-temperature heating mode; T d 1 <0, the compressor is in low-temperature defrosting mode; The second determination parameter includes chassis temperature T. d 1 .

[0028] Furthermore, entering heating control based on heating commands and operating conditions includes the following steps: S204'-2: When the compressor is in low-temperature heating mode, it enters the normal heating control based on the heating command, obtains the second temperature parameter, and enters the heating control based on the second temperature parameter. S204'-4: When the compressor is in low-temperature de-icing condition, control the compressor to increase frequency and start the heat transfer device.

[0029] Further, obtaining a second temperature parameter and entering heating control based on the second temperature parameter includes the following steps: S204'-2-2: Detecting and acquiring compressor motor temperature T ɑ 2 and compressor motor temperature T ɑ 2 The corresponding second rated temperature T max2 Detect and obtain the tube temperature T of the evaporator section e 1 and the temperature T of the evaporator section e 1 The corresponding third rated temperature T max3 ; S204'-2-4: When the compressor motor temperature T ɑ 2 Second rated temperature T max2 evaporator section pipe temperature T e 1 and the third rated temperature T max3 Satisfying Relationship: T ɑ 2 ≦T max2 And T e 1 ≦T max3 At this time, it enters normal heating control; T ɑ2 >T max2 and / or T e 1 >T max3 At that time, the first temperature parameter is obtained, and the heat transfer device is controlled based on the first temperature parameter; The second temperature parameter includes the compressor motor temperature T. ɑ 2 Second rated temperature T max2 evaporator section pipe temperature T e 1 and the third rated temperature T max3 .

[0030] Furthermore, when the compressor is in low-temperature defrosting condition, controlling the compressor to increase its frequency and start the heat transfer device includes the following steps: S204'-4-2: Control the compressor to increase its frequency to the low-temperature defrosting frequency H1, start the heat transfer device, and run for t1; S204'-4-4: Detect and acquire chassis temperature T d 2 ; When the chassis temperature T d 2 Satisfying Relationship: T d 2 ≥0, controls the compressor to enter low-temperature heating mode.

[0031] Furthermore, the heat transfer device also includes an electric heating belt, which is mounted on the chassis; In the control method, when the chassis temperature T d 2 Satisfying Relationship: T d 2 <0, control the electric heating belt to run until T d 2 ≧0.

[0032] Further, obtaining a first temperature parameter and controlling the heat transfer device based on the first temperature parameter includes the following steps: S204-4-2: Detecting and acquiring the compressor outer wall temperature T o 1 and chassis temperature T d 3 ; S204-4-4: When the compressor outer wall temperature T o 1 and chassis temperature T d 3 Satisfying Relationship: T o 1 ≧Td 3 Start the heat transfer device, running time t2; T o 1 <T d 3 Maintain the compressor's current state; The first temperature parameter includes the compressor outer wall temperature T. o 1 and chassis temperature T d 3 .

[0033] Accordingly, embodiments of this application also provide an electronic device, the electronic device comprising: Memory, used to store computer instructions; A processor is used to invoke and execute the computer instructions to implement the methods provided in the preceding embodiments.

[0034] Accordingly, embodiments of this application also provide an outdoor unit for an air conditioner, including a compressor and the heat transfer device mentioned above; or, the outdoor unit for an air conditioner includes a compressor, the heat transfer device mentioned above, and electronic equipment.

[0035] Accordingly, this application also provides a control device for the above-mentioned heat transfer device, including a receiving module and a detection unit. The receiving module is used to receive instructions; the control module is used to obtain corresponding judgment parameters according to the instructions, to determine the operating condition of the compressor based on the judgment parameters, and to enter control based on the instructions and the operating condition; wherein, the instructions include cooling instructions and heating instructions, and the judgment parameters correspond to the instructions.

[0036] Accordingly, this application also provides a control system, including a processor and a memory. The memory stores computer program instructions that can be executed by the processor. When the processor executes the computer program instructions, it implements the control method of the heat transfer device provided according to the embodiments of this application.

[0037] Accordingly, embodiments of this application also provide a non-transitory computer-readable storage medium storing computer program instructions, which, when called and executed by a processor, implement the steps of the control method for the heat transfer device provided in the embodiments of this application.

[0038] The technical solution provided in this application has a reasonable structural or logical design, and can control the heat transfer device according to the different operating conditions of the air conditioner compressor, thereby solving the problems of low heat dissipation efficiency of the compressor under high temperature conditions, high defrosting and de-icing energy consumption and inability to utilize waste heat under low temperature conditions in the prior art. Attached Figure Description

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of an embodiment of a heat transfer device provided by the present invention; Figure 2 A schematic diagram of an embodiment of the circulation pipeline provided by the present invention; Figure 3 A schematic diagram of the structure of an embodiment of the evaporation tube segment provided by the present invention; Figure 4 A schematic diagram illustrating the principle of an embodiment of the circulation pipeline provided by the present invention; Figure 5 A schematic flowchart illustrating a control method for a heat transfer device provided by the present invention; Figure 6 The present invention provides a flowchart illustrating the process of obtaining corresponding judgment parameters based on the instruction when the instruction is a refrigeration instruction, determining the operating condition of the compressor based on the judgment parameters, and entering control based on the instruction and operating condition. Figure 7 The present invention provides a schematic diagram of the process of obtaining corresponding judgment parameters according to the instruction when the instruction is a heating instruction, determining the operating condition of the compressor based on the judgment parameters, and entering control based on the instruction and operating condition. Figure 8 This is a schematic diagram of the structure of a control device for a heat transfer apparatus provided by the present invention; Figure 9 This invention provides a schematic diagram of the control system of a heat transfer device. Figure 10 A flow chart of the control process under compressor refrigeration state provided by the present invention; Figure 11 This invention provides a flowchart of the control process of a compression mechanism under thermal conditions.

[0040] In the diagram: 1 Compressor, 2 Chassis, 3 Evaporator section, 4 Condenser section, 5 First intermediate pipe section, 6 Second intermediate pipe section, 7 Fixed bracket, 8 Capillary wick, 9 Liquid replenishment structure, 10 Liquid replenishment branch pipe, 11 Steam channel, 12 Control device, 121 Receiving module, 122 Control module, 13 Control system, 131 Processor, 132 Memory. Detailed Implementation

[0041] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0042] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0044] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] As shown in Figure 1 to Figure 4 As shown, an embodiment of the first aspect of the present invention provides a heat transfer device for an air conditioner outdoor unit including a compressor 1 and a chassis 2. The heat transfer device includes an evaporator section 3, a condenser section 4, a first intermediate section 5, and a second intermediate section 6.

[0047] Evaporator section 3 is mounted on compressor 1 to absorb heat from compressor 1. Condenser section 4 is mounted on chassis 2 to release heat to chassis 2. The inlet end of the first intermediate pipe section 5 is connected to the outlet end of evaporator section 3, and the outlet end of the first intermediate pipe section 5 is connected to the inlet end of condenser section 4. The inlet end of the second intermediate pipe section 6 is connected to the outlet end of condenser section 4, and the outlet end of the second intermediate pipe section 6 is connected to the inlet end of evaporator section 3. Evaporator section 3, condenser section 4, and the first intermediate pipe section 5 and the second intermediate pipe section 6 connected between evaporator section 3 and condenser section 4 form a circulation loop. The circulation loop contains a heat transfer medium, and the inner wall surface of the liquid pipe, for example, the second intermediate pipe section 6, is provided with a capillary structure. A valve is provided on the circulation loop, which can be controlled to open or close the circulation loop according to the operating status of the compressor and / or the frosting condition of the chassis.

[0048] Optionally, in one implementation of this embodiment, the evaporator section 3 serves as the evaporator of the heat transfer device, employing a multi-layered, spiral-shaped pipe structure, and is securely fitted to the outside of the compressor 1 via a fixing bracket 7. The condenser section 4 serves as the condenser of the heat transfer device, employing multiple parallel pipes laid on the chassis 2 of the outdoor unit of the air conditioner. The evaporator section 3, the first intermediate pipe section 5, the condenser section 4, and the second intermediate pipe section 6 are sequentially connected to form a circulation pipeline, allowing the working fluid to flow within the circulation pipeline during operation of the heat transfer device, thereby achieving heat transfer. The second intermediate pipe section 6 employs an anti-gravity heat pipe with an internal capillary wick 8 to enable the working fluid to flow against gravity within the second intermediate pipe section 6. Valves are installed on the circulation pipeline to control the operation and shutdown (i.e., opening or closing) of the heat transfer device.

[0049] The present invention provides a heat transfer device with a reasonable structural design, thereby solving the problems of low heat dissipation efficiency of compressor 1 under high temperature conditions, high defrosting and de-icing energy consumption and inability to utilize waste heat under low temperature conditions in the prior art.

[0050] Specifically, under cooling or heating conditions, after compressor 1 operates stably, the internal and body temperatures of compressor 1 rise rapidly. At this time, evaporator section 3 absorbs heat, causing the internal working fluid to vaporize and form steam. Driven by gas pressure, the steam flows through the first intermediate pipe section 5 to the condenser section 4. Since the temperature of condenser section 4 is lower than that of evaporator section 3, the steam releases heat and condenses into liquid after entering condenser section 4. Subsequently, under the capillary action of the capillary wick 8 on the inner wall of the second intermediate pipe section 6, the liquid working fluid flows back to evaporator section 3. As the working fluid repeatedly undergoes vapor-liquid phase transformation and circulation within the circulation pipeline, the waste heat of compressor 1 is continuously transferred from compressor 1 to chassis 2, thereby achieving heat dissipation of compressor 1 under high-temperature conditions and defrosting and de-icing under low-temperature conditions.

[0051] Therefore, under high-temperature conditions, the heat transfer device can enhance the heat dissipation of the compressor 1, and transfer the waste heat of the compressor 1 to the chassis 2 in a timely manner through the circulation pipeline, so as to keep the temperature of the compressor 1 below the preset frequency reduction temperature or shutdown temperature, thereby ensuring that the compressor 1 can still maintain high-frequency operation under high-temperature conditions, ensuring the capacity output of the air conditioner and improving the comfort of users.

[0052] Under low-temperature conditions, the waste heat of the compressor 1 is transferred to the chassis 2 through the circulation pipeline, and indirectly to the condenser section 4. This can maintain the temperature of the chassis 2 above 0°C, prevent the chassis 2 of the outdoor unit of the air conditioner from freezing, and eliminate the damage to the fan blades caused by the interference of the running path of the fan blades and other components due to the freezing of the chassis 2.

[0053] The evaporator section 3, condenser section 4, first intermediate section 5, and second intermediate section 6 are connected as follows: the outlet of evaporator section 3 is connected to the inlet of first intermediate section 5, the outlet of first intermediate section 5 is connected to the inlet of condenser section 4, the outlet of condenser section 4 is connected to the inlet of second intermediate section 6, and the outlet of second intermediate section 6 is connected to the inlet of evaporator section 3, thereby creating a thermal bridge between compressor 1 and chassis 2.

[0054] The evaporation tube section 3 is equipped with a liquid replenishment chamber 9 and multiple liquid replenishment branch pipes 10, each of which is sequentially connected to each layer of pipe in the evaporation tube section 3. The liquid replenishment chamber of the liquid replenishment structure 9 is connected to the liquid replenishment branch pipe 10 and is used to replenish the working fluid into the evaporation tube section 3. The evaporation tube section 3 is also equipped with a steam channel 11, which is located inside the evaporation tube section 3 and connected to the first intermediate pipe section 5. The steam channel 11 is used to collect the working fluid that evaporates inside the evaporation tube section 3 and to introduce the working fluid vapor into the first intermediate pipe section 5.

[0055] Preferably, the evaporator section 3 has a replenishment chamber for storing heat transfer medium on its outlet side (near the first intermediate section 5) and a capillary structure on its inlet side (near the second intermediate section 6).

[0056] An anti-gravity heat pipe is a heat pipe device that can still efficiently transfer heat under the influence of gravity, making it particularly suitable for applications requiring vertical operation or operation in gravity-dependent environments. By optimizing the wick structure in the heat pipe into a capillary wick 8 and filling it with a suitable working fluid, the working fluid can spontaneously circulate within the anti-gravity heat pipe against gravity without additional driving force, thus maintaining high-efficiency heat transfer performance. Preferably, the capillary wick 8 is a variable-pore-size sintered particle capillary wick 8.

[0057] Preferably, in combination with the above scheme, as shown in Figures 1 to 12, the following methods are used: Figure 4As shown, in one embodiment of the present invention, the evaporator section 3, the condenser section 4, the first intermediate section 5, and the second intermediate section 6 are made of microchannel copper tubes; the working fluid inside the evaporator section 3, the condenser section 4, the first intermediate section 5, and the second intermediate section 6 is acetone or ethanol. The second intermediate section 6 is a microchannel copper tube with an internal capillary wick 8, which acts as a counter-gravity heat pipe connecting the air conditioner compressor 1 and the chassis 2. This allows the condensed liquid working fluid to flow back to the evaporator section 3 under the action of the capillary wick, achieving enhanced heat dissipation of the compressor 1 under high-temperature conditions through self-circulation using the counter-gravity heat pipe, and recovering the residual waste heat of the compressor 1 under low-temperature conditions for defrosting and de-icing of the chassis 2.

[0058] Preferably, in combination with the above scheme, as shown in Figures 1 to 12, the following methods are used: Figure 4 As shown in one embodiment of the present invention, a heat-conducting layer is provided at the position where the evaporator section 3 is in contact with the compressor, or a heat-conducting layer is provided at the contact point between the evaporator section 3 and the compressor 1, and the compressor housing is a metal housing. Preferably, the heat-conducting layer is a thermally conductive silicone grease coating or a thermally conductive adhesive coating, which has high thermal conductivity, thereby improving the heat transfer rate between the evaporator section 3 and the compressor 1 body. In addition, a heat-conducting layer is provided at the position where the condenser section 4 is in contact with the surface of the chassis 2, and the chassis 2 is a metal chassis.

[0059] Preferably, in combination with the above schemes, such as Figure 3 As shown, the evaporator section is connected to the replenishment pipeline via a branch, and the replenishment pipeline has a replenishment chamber for storing the heat transfer medium. The replenishment structure 9 includes a vertically thicker replenishment pipeline (with a replenishment chamber) and a horizontally thinner branch connecting the replenishment pipeline to the evaporator section 3, as well as an inlet for replenishing the medium into the replenishment chamber and a sealing structure for sealing the inlet.

[0060] Preferably, the heat transfer device includes M circulation loops, wherein the evaporator tube sections 3 of the M circulation loops are arranged sequentially from top to bottom along the outer periphery of the compressor, and the condenser tube sections 4 of the M circulation loops are arranged sequentially from the outside to the inside along the surface of the chassis. M ≥ 1. For example, M = 2, 6, 8, 10, 19, etc.

[0061] Optionally, the M circulation loops are divided into N groups of circulation loops, and the M evaporator tube segments are divided into N groups along the height of the compressor housing. There is a distance between each pair of adjacent groups of evaporator tube segments, and the higher the position of the evaporator tube segment group, the closer its corresponding condenser tube segment group is to the inner side of the chassis surface, where M ≥ N > 1. This structure is beneficial for maximizing heat dissipation with fewer circulation loops.

[0062] Optionally, the M condenser pipe segments are arranged sequentially from the outside to the inside of the chassis surface, and the closer to the inside of the chassis surface, the lower the position. The pipe surfaces of the M condenser pipe segments form a slope in the radial direction of the chassis surface.

[0063] Accordingly, in conjunction with the above solutions, this application provides a control method for a heat transfer device. The method includes the following processing steps.

[0064] First, determine the compressor's operating condition. Here, compressor operating condition refers to the specific operating condition under cooling or heating conditions.

[0065] Subsequently, when the compressor is operating under the target compressor condition, demand determination parameters are obtained. These parameters include frequency parameters representing the compressor's operating state or characteristic parameters representing the compressor's heat dissipation requirements. The characteristic parameters can be temperature parameters or equivalent parameters characterizing temperature.

[0066] Then, the operating status of the heat transfer device is controlled according to the required parameters.

[0067] By employing the embodiments of this application, the heat transfer device can be precisely controlled according to the specific compressor operating conditions and corresponding demand parameters, thereby achieving a heat dissipation or defrosting effect adapted to the compressor operating conditions.

[0068] Optionally, in one implementation of this embodiment, determining the compressor operating condition includes: acquiring operating condition determination parameters, which include a first determination parameter under cooling conditions or a second determination parameter under heating conditions; and determining the compressor operating condition based on the operating condition determination parameters, whereby the compressor operating condition includes multiple operating conditions under cooling conditions or multiple operating conditions under heating conditions. A detailed description follows.

[0069] In refrigeration mode, the compressor operating condition is determined based on the operating condition determination parameters, including: The determination is made based on the first determination parameter, which includes the refrigerant saturation temperature T. oil and compressor motor temperature T ɑ 1 When the refrigerant saturation temperature T oil The compressor motor temperature T ɑ 1 Satisfy T oil ≦T ɑ 1 ≦T max1 At that time, the compressor operates under normal refrigeration conditions, and the T... max1 The first rated temperature; when T ɑ 1 <Toil When T is in low-temperature refrigeration mode, the compressor operates under low-temperature refrigeration conditions; when T ɑ 1 >T max1 At that time, the compressor operates under high-temperature refrigeration conditions.

[0070] In heating mode, the compressor operating condition is determined based on the aforementioned operating condition determination parameters, including: The judgment is made based on the second judgment parameter, which includes a second A judgment parameter for the later stage of compressor startup and / or a second B judgment parameter for the early stage of compressor startup. The second A judgment parameter includes the indoor unit evaporator pipe temperature T. e 1 and compressor motor temperature T ɑ 2 The second B determination parameter includes the air conditioning chassis temperature; when T e 1 ≤Second rated temperature and T ɑ 2 When the temperature is ≤3 rated temperature, the compressor operates under normal temperature heating conditions; otherwise, the compressor operates under unconventional temperature heating conditions. When the air conditioner chassis temperature is ≥ set temperature, the compressor operates under normal temperature heating conditions; otherwise, the compressor operates under low temperature heating conditions.

[0071] Specifically, if the compressor operating condition is determined to be the normal temperature heating condition according to the second B determination parameter, the compressor operating condition is determined to be either the normal temperature conventional heating condition or the normal temperature unconventional heating condition according to the second A determination parameter.

[0072] Optionally, in one implementation of this embodiment, in the cooling situation, the compressor operating conditions include conventional cooling, low-temperature cooling, and high-temperature cooling; in the heating situation, the compressor operating conditions include normal temperature conventional heating and normal temperature unconventional heating, or the compressor operating conditions include normal temperature heating and low-temperature heating; the target compressor operating conditions include the high-temperature cooling condition in the cooling situation and the normal temperature unconventional heating and low-temperature heating conditions in the heating situation.

[0073] Optionally, in one implementation of this embodiment, when the target compressor operating condition is the high-temperature refrigeration condition or the normal-temperature unconventional heating condition, the demand determination parameter is the characteristic parameter, which includes the compressor outer wall temperature and the air conditioner chassis temperature. In this case, controlling the operating state of the heat transfer device according to the determination parameter includes: If the temperature of the compressor outer wall is greater than or equal to the temperature of the air conditioner chassis, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state.

[0074] When the target compressor is operating under the low-temperature heating condition, and the demand determination parameter is the frequency parameter, then controlling the operating state of the heat transfer device according to the determination parameter includes: If the frequency parameter is greater than the set frequency value, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state and the compressor is controlled to increase its frequency.

[0075] Optionally, in one implementation of this embodiment, the method further includes: when the heat transfer device is in a working state, after a set time, re-acquiring the demand determination parameters to re-determine the compressor operating condition based on the demand determination parameters.

[0076] This application also provides an electronic device, comprising: a memory for storing computer instructions; and a processor for calling and executing the computer instructions to implement the control method provided in this application. Exemplarily, the electronic device may be an integrated circuit, an integrated chip, etc.

[0077] Optionally, in one implementation of this embodiment, the outdoor unit of the air conditioner includes a compressor and the heat transfer device provided in the preceding embodiment. Alternatively, the outdoor unit of the air conditioner includes a compressor, the heat transfer device provided in the preceding embodiment, and electronic equipment.

[0078] Accordingly, in conjunction with the above solutions, to specifically achieve the technical effects of the heat transfer device mentioned above—namely, to prevent the compressor from limiting its frequency or shutting down during cooling mode, thus ensuring the air conditioner's output capacity; and to prevent frost and ice buildup on the chassis during heating mode, thus avoiding damage to the fan blades or the copper pipes at the bottom of the condenser—as shown in Figure 5, the present invention also provides a control method for the heat transfer device, including the following steps: S100: Receive commands; among which, the commands include cooling commands and heating commands.

[0079] S200: Obtain the corresponding judgment parameters according to the instructions, determine the operating condition of the compressor based on the judgment parameters, and enter control based on the instructions and operating conditions.

[0080] Specifically, when a cooling command is received, the system obtains the corresponding determination parameters based on the cooling command, determines the different types of cooling operating conditions the compressor is in based on these parameters, and then initiates control based on the type of cooling command and operating condition. When a heating command is received, the system obtains the corresponding determination parameters based on the heating command, determines the different types of heating operating conditions the compressor is in based on these parameters, and then initiates control based on the type of heating command and operating condition.

[0081] In practical applications, when the air conditioner is in normal cooling mode, the compressor can operate normally and stably.

[0082] As outside temperatures rise, users' demand for air conditioning cooling capacity increases significantly. This requires the compressor to maintain high-frequency operation for extended periods, easily leading to overheating. According to test data, a 1.5P air conditioner outdoor unit equipped with an M098 compressor operated for 4 hours in a high-temperature cooling environment with an outside temperature of 43℃. During this time, the compressor operating frequency remained at 80Hz, and the average exhaust temperature reached 103.42℃, with a peak instantaneous temperature of 105℃. This means that the compressor motor winding temperature would inevitably exceed 105℃. In current technology, to ensure the reliability of the compressor and the overall air conditioning system, the compressor operating frequency can only be limited to 80Hz. If the outside temperature continues to rise, it will trigger frequency reduction protection or even shutdown protection, causing a decrease in cooling capacity or even failure to cool.

[0083] When air conditioners are used in special scenarios such as computer rooms and data centers, they need to meet the requirements of low-temperature cooling, that is, to cool under conditions where the ambient temperature is low. However, if the compressor operates at low frequency for a long time under low-temperature cooling conditions, the internal oil temperature of the compressor will be low, resulting in oil return failure.

[0084] When an air conditioner is in low-temperature heating mode, the outdoor unit is easily affected by rain, snow, and low temperatures, which can easily cause frost and ice to form on the chassis and condenser. In existing technology, the control logic for low-temperature heating is to activate the electric heating element to heat the chassis whenever the ambient temperature is below 0°C, resulting in a large amount of energy consumption and a significant increase in the air conditioner's power consumption.

[0085] Therefore, the control method based on the heat transfer device divides the compressor's refrigeration conditions into: conventional refrigeration condition, where the compressor is directly controlled for conventional refrigeration; high-temperature refrigeration condition, where heat dissipation is enhanced to avoid triggering frequency reduction protection or shutdown protection; and low-temperature refrigeration condition, where the compressor temperature is maintained to avoid oil return failure. Similarly, the control method based on the heat transfer device divides the compressor's heating conditions into: low-temperature heating condition, where conventional heating control is implemented, utilizing the condenser section of the heat transfer device to release heat and heat the chassis, achieving defrosting and saving electricity; and low-temperature defrosting condition, where the electric heating element is activated to heat the chassis for rapid defrosting.

[0086] Preferably, in combination with the above schemes, such as Figure 6 As shown, in one embodiment of the present invention, when the instruction is a refrigeration instruction, step S200, which involves obtaining the corresponding determination parameters according to the instruction, determining the operating condition of the compressor based on the determination parameters, and entering control based on the instruction and operating condition, includes the following steps: S202: When the instruction is a refrigeration instruction, obtain the first determination parameter and the compressor motor temperature, and determine whether the compressor is in normal refrigeration condition, high temperature refrigeration condition or low temperature refrigeration condition based on the first determination parameter and the compressor motor temperature.

[0087] S204: Enters refrigeration control based on refrigeration command and operating conditions.

[0088] Specifically, by acquiring the first determination parameter corresponding to the cooling command and the compressor motor temperature, it is possible to determine whether the compressor is in a normal cooling condition, a high-temperature cooling condition, or a low-temperature cooling condition, and thus perform cooling control according to different types of cooling conditions.

[0089] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the step S202 of obtaining the first determination parameter and the compressor motor temperature, and determining whether the compressor is in a normal refrigeration condition, a high-temperature refrigeration condition, or a low-temperature refrigeration condition based on the first determination parameter and the compressor motor temperature includes the following steps: S202-2: Detecting and obtaining compressor discharge pressure P at interval t. h Based on the compressor discharge pressure P h Obtain the corresponding refrigerant saturation temperature T oil .

[0090] Specifically, the compressor contains lubricating oil, and when the compressor discharge pressure is P... h When the actual temperature of the lubricating oil is lower than the corresponding refrigerant saturation temperature T, oil This will cause the compressor to experience an oil return failure. According to current technology, the compressor discharge pressure P... h This can be considered equivalent to the pressure of lubricating oil; by conversion, the corresponding refrigerant saturation temperature T at that pressure can be obtained. oil .

[0091] In some possible embodiments, the interval t is 60 seconds.

[0092] S202-4: Detecting and acquiring compressor motor temperature T ɑ 1 and compressor motor temperature T ɑ 1 The corresponding first rated temperature T max1 Among them, the compressor motor temperature T ɑ 1 The first rated temperature T can be obtained by detecting a temperature sensor. max1 You can refer to the compressor's factory settings.

[0093] In some possible embodiments, the first rated temperature T max1 The temperature is 105℃.

[0094] S202-6: When the refrigerant saturation temperature T oil Compressor motor temperature T ɑ 1 and the first rated temperature T max1 Satisfying Relationship: T oil ≦T ɑ 1 ≦T max1 At this time, the compressor is in normal refrigeration mode and can be directly controlled for normal refrigeration. T ɑ 1 <T oil At this time, the compressor is in a low-temperature refrigeration condition, which is prone to oil return failure, and it is necessary to maintain the compressor temperature; T ɑ 1 >T max1 At this time, the compressor is in a high-temperature cooling condition, and it is necessary to strengthen heat dissipation to avoid triggering frequency reduction protection or shutdown protection.

[0095] The first determination parameter includes the compressor discharge pressure P. h Refrigerant saturation temperature T oil and the first rated temperature T max1 By obtaining the compressor discharge pressure P h Refrigerant saturation temperature T oil First rated temperature T max1 and compressor motor temperature T ɑ 1 It can determine whether the compressor is in normal refrigeration condition, high temperature refrigeration condition, or low temperature refrigeration condition.

[0096] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, step S204, which involves entering the refrigeration control based on the refrigeration command and operating condition, includes the following steps: S204-2: When the compressor is in normal refrigeration operation, it enters normal refrigeration control based on the refrigeration command. Specifically, entering normal refrigeration control allows direct control of the compressor to increase or decrease its frequency according to the refrigeration command.

[0097] S204-4: When the compressor is in a high-temperature refrigeration condition, the first temperature parameter is obtained, and the heat transfer device is controlled based on the first temperature parameter.

[0098] S204-6: When the compressor is in low-temperature refrigeration condition, control the compressor to enter the oil return program.

[0099] Specifically, when it is determined that the compressor is in a low-temperature refrigeration condition, the current compressor operating frequency H is first detected and obtained; then the compressor is controlled to enter the oil return program and the compressor frequency is controlled to increase to H2, with an operating time of t3; finally, the compressor frequency is controlled to decrease to H, with an operating time of t4.

[0100] In some possible embodiments, the oil return program controls the compressor to increase its frequency to H2 at 60Hz, with an increase operation time t3 of 10 minutes, and then decreases its frequency to H for an operation time t4 of 60 minutes.

[0101] Preferably, in combination with the above schemes, such as Figure 7 As shown, in one embodiment of the present invention, when the command is a heating command, step S200, which involves obtaining the corresponding determination parameters according to the command, determining the operating condition of the compressor based on the determination parameters, and entering control based on the command and operating condition, further includes the following steps: S202': When the command is a heating command, obtain the second determination parameter, and determine whether the compressor is in low-temperature heating mode or low-temperature defrosting mode based on the second determination parameter.

[0102] S204': Enter heating control based on heating command and operating conditions.

[0103] Specifically, by acquiring the second determination parameter corresponding to the heating command, it is possible to determine whether the compressor is in a low-temperature heating condition or a low-temperature defrosting condition, and thus perform heating control according to different types of heating conditions.

[0104] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the step S202' of obtaining the second determination parameter and determining whether the compressor is in a low-temperature heating condition or a low-temperature defrosting condition based on the second determination parameter includes the following steps: S202'-2: Detect and acquire chassis temperature T d 1 .

[0105] S202'-4: When the chassis temperature T d 1 Satisfying Relationship: T d 1 ≧0, the compressor is in low-temperature heating mode and enters normal heating control.

[0106] T d 1 When the value is less than 0, the compressor is in low-temperature defrosting mode. The heat transfer device is activated, and the condensation heat released from the condenser tubes is used to heat the chassis for defrosting, which can save a significant amount of electricity.

[0107] The second determination parameter includes chassis temperature T. d 1 By obtaining the chassis temperature Td 1 It can determine whether the compressor is in low-temperature heating mode or low-temperature defrosting mode.

[0108] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, step S204' of entering heating control based on heating command and operating condition includes the following steps: S204'-2: When the compressor is in low-temperature heating mode, it enters normal heating control based on the heating command. Specifically, entering normal heating control can directly start the outdoor fan and control the compressor to increase or decrease its frequency according to the heating command. Since the compressor's frequency increase or decrease will cause changes in the internal temperature, it is also necessary to obtain a second temperature parameter and enter heating control again based on the second temperature parameter.

[0109] S204'-4: When the compressor is in low-temperature defrosting mode, the compressor frequency is increased and the heat transfer device is started. Only the heat transfer device itself is used to defrost and defrost the chassis by utilizing the condensation heat release of the condenser section, which can save a lot of electricity.

[0110] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the step S204'-2 of obtaining the second temperature parameter and entering the heating control based on the second temperature parameter includes the following steps: S204'-2-2: Detecting and acquiring compressor motor temperature T ɑ 2 and compressor motor temperature T ɑ 2 The corresponding second rated temperature T max2 Detect and obtain the tube temperature T of the evaporator section e 1 and the temperature T of the evaporator section e 1 The corresponding third rated temperature T max3 .

[0111] Among them, the compressor motor temperature T ɑ 2 and the temperature T of the evaporator section e 1 The second rated temperature T can be obtained by detecting a temperature sensor. max2 and the third rated temperature T max3 Refer to the factory settings for both the compressor and evaporator piping sections. In some possible embodiments, the second rated temperature T... max2 The third rated temperature is 105℃. max3 The temperature is 56℃.

[0112] S204'-2-4: When the compressor motor temperature T ɑ 2 Second rated temperature T max2evaporator section pipe temperature T e 1 and the third rated temperature T max3 Satisfying Relationship: T ɑ 2 ≦T max2 And T e 1 ≦T max3 At this time, after the compressor undergoes frequency increase or decrease control, the compressor motor temperature T ɑ 2 and the temperature T of the evaporator section e 1 None of them exceeded the rated temperature, so they can directly enter the normal heating control. Specifically, entering the normal heating control can maintain the outdoor fan running according to the heating command and control the compressor to increase or decrease the frequency.

[0113] T ɑ 2 >T max2 and / or T e 1 >T max3 At that time, the compressor motor temperature T ɑ 2 and the temperature T of the evaporator section e 1 If one or all of the temperatures exceed the rated temperature, it is necessary to obtain the first temperature parameter and control the heat transfer device based on the first temperature parameter.

[0114] The second temperature parameter includes the compressor motor temperature T. ɑ 2 Second rated temperature T max2 evaporator section pipe temperature T e 1 and the third rated temperature T max3 .

[0115] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, step S204'-4, when the compressor is in low-temperature defrosting condition, controlling the compressor to increase its frequency and start the heat transfer device includes the following steps: S204'-4-2: Controls the compressor to increase its frequency to the low-temperature defrosting frequency H1, starts the heat transfer device, and runs for t1 to defrost and de-ice the chassis of the outdoor unit of the air conditioner.

[0116] In some possible embodiments, the low-temperature de-icing frequency H1 is 70 Hz and the low-temperature de-icing operation time t1 is 3 minutes.

[0117] S204'-4-4: Detect and acquire chassis temperature T d 2 ; When the chassis temperature T d 2 Satisfying Relationship: T d 2 If the value is ≥0, it is determined that the chassis of the outdoor unit of the air conditioner is no longer frosted or icy, and the compressor is controlled to enter the low-temperature heating mode.

[0118] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, since the efficiency of using the condensation heat release of the condenser section for defrosting and de-icing the chassis is limited, the heat transfer device also includes an electric heating belt, which is disposed on the chassis and is used to quickly defrost and de-ic the chassis when it is severely frosted and icy.

[0119] In the control method, when the chassis temperature T d 2 Satisfying Relationship: T d 2 <0, control the electric heating belt to run until T d 2 ≧0.

[0120] Specifically, when T is first detected d 2 When the temperature is <0, the compressor frequency is increased to the low-temperature defrosting frequency H1 according to step S204'-4-2, and the heat transfer device is started. The running time is t1, which is used to defrost and de-ice the chassis of the outdoor unit of the air conditioner to save electricity. After the running time t1 ends, the chassis temperature T is detected and obtained again. d 2 When T d 2 When the temperature is below 0, it is determined that the chassis is severely frosted and icy. The electric heating belt is then activated to quickly heat the chassis to defrost and melt the ice.

[0121] The method of activating the electric heating belt to quickly heat the chassis for defrosting and de-icing includes two schemes: a) The electric heating belt runs continuously until T is detected. d 2 ≧0; b, the electric heating belt operates periodically, and the chassis temperature T is detected at intervals t'. d 2 If T d 2 If T < 0, restart the electric heating belt for another time t'. d 2 If the value is ≥0, the system enters normal heating control.

[0122] In some possible embodiments, the interval t' is 3 minutes.

[0123] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, obtaining the first temperature parameter in steps S204-4 and S204'-2-4, and controlling the heat transfer device based on the first temperature parameter, includes the following steps: S204-4-2: Detecting and acquiring the compressor outer wall temperature T o 1 and chassis temperature T d 3 ; S204-4-4: When the compressor outer wall temperature T o 1 and chassis temperature T d 3 Satisfying Relationship: T o 1 ≧T d 3 Start the heat transfer device and run for t2.

[0124] Specifically, when the temperature of the compressor outer wall T o 1 Temperature T is higher than or equal to the chassis temperature. d 3 During operation, the working fluid inside the circulation pipeline passes through the evaporator section, absorbing the heat generated by the compressor; the working fluid passes through the condenser section, condensing and releasing heat, thus achieving heat dissipation for the compressor.

[0125] In some possible embodiments, the heat transfer device operates for t2 for 3 minutes.

[0126] T o 1 <T d 3 At this time, the temperature of the compressor outer wall is T. o 1 Below chassis temperature T d 3 The compressor cannot be cooled, so it is necessary to maintain the compressor's current state and limit its frequency increase until the chassis temperature drops to T. o 1 ≧T d 3 The heat transfer device is activated to dissipate heat from the compressor.

[0127] The first temperature parameter includes the compressor outer wall temperature T. o 1 and chassis temperature T d 3 By obtaining the compressor outer wall temperature T o 1 and chassis temperature T d 3It can determine whether the working fluid inside the circulation pipeline can evaporate and absorb heat when passing through the evaporator section and condense and release heat when passing through the condenser section.

[0128] In some possible embodiments, when the compressor is in low-temperature heating mode, after the heat transfer device has been running for t2, the compressor motor temperature T is detected and acquired again. ɑ 2 and the temperature T of the evaporator section e 1 When T ɑ 2 >T max2 and / or T e 1 >T max3 When, repeat step S204'-2-4 to obtain the first temperature parameter, and control the heat transfer device based on the first temperature parameter; until T ɑ 2 ≦T max2 And T e 1 ≦T max3 When the system enters normal heating control, it maintains the outdoor fan running according to the heating command and controls the compressor to increase or decrease its frequency.

[0129] The relevant descriptions above can be referred to. Figure 10 and Figure 11 To gain a more intuitive understanding, among other things, Figure 10 A flow chart of the control process under compressor refrigeration state provided by the present invention; Figure 11 This invention provides a flowchart of the control process of a compression mechanism under thermal conditions.

[0130] Accordingly, in conjunction with the above schemes, such as Figure 8 As shown, the present invention also provides a control device 12 for a heat transfer device, used in an air conditioning outdoor unit including a compressor and a chassis. The heat transfer device is as described above and will not be repeated here.

[0131] The control device 12 includes a receiving module 121 and a control module 122. The receiving module 121 is used to receive commands. The control module 122 is used to obtain corresponding judgment parameters according to the commands, determine the operating condition of the compressor based on the judgment parameters, and enter control based on the commands and the operating condition. The commands include cooling commands and heating commands, and the judgment parameters correspond to the commands.

[0132] For example, the receiving module 121 and / or the control module 122 may be physically part of the indoor unit of an air conditioner.

[0133] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the control module 122 includes a first detection unit. When the instruction is a cooling instruction, the first detection unit is used to acquire a first determination parameter and the compressor motor temperature. The control module 122 is used to determine, based on the first determination parameter and the compressor motor temperature, whether the compressor is in a normal cooling condition, a high-temperature cooling condition, or a low-temperature cooling condition, and enters cooling control based on the cooling instruction and the condition. The determination parameter includes the first determination parameter and the compressor motor temperature.

[0134] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the first detection unit includes a first pressure detection unit and a first temperature detection unit. The first pressure detection unit is used to detect and obtain the compressor discharge pressure P at intervals t. h The control module 122 is used to control the compressor discharge pressure P. h Obtain the corresponding refrigerant saturation temperature T oil The first temperature detection unit is used to detect and obtain the compressor motor temperature T. ɑ 1 and compressor motor temperature T ɑ 1 The corresponding first rated temperature T max1 When the refrigerant saturation temperature T oil Compressor motor temperature T ɑ 1 and the first rated temperature T max1 Satisfying relation: T oil ≦T ɑ 1 ≦T max1 At this time, control module 122 is used to determine that the compressor is in normal refrigeration condition; T ɑ 1 <T oil At that time, the control module 122 is used to determine that the compressor is in a low-temperature refrigeration condition; T ɑ 1 >T max1 At this time, the control module 122 is used to determine that the compressor is in a high-temperature refrigeration condition. The first determination parameter includes the compressor discharge pressure P. h Refrigerant saturation temperature T oil and the first rated temperature T max1 .

[0135] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the control module 122 further includes a second detection unit. When the compressor is in normal cooling mode, the control module 122 is used to control the indoor unit of the air conditioner to enter normal cooling control based on the cooling command. When the compressor is in high-temperature cooling mode, the second detection unit is used to acquire a first temperature parameter, and the control module 122 is used to control the heat transfer device based on the first temperature parameter. When the compressor is in low-temperature cooling mode, the control module 122 is used to control the compressor to enter the oil return procedure.

[0136] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the control module 122 further includes a third detection unit. When the command is a heating command, the third detection unit is used to acquire a second determination parameter, and the control module 122 is used to determine, based on the second determination parameter, whether the compressor is in a low-temperature heating condition or a low-temperature defrosting condition. The control module 122 is used to enter heating control based on the heating command and the operating condition. The determination parameter includes the second determination parameter.

[0137] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the third detection unit includes a second temperature detection unit. The second temperature detection unit is used to detect and acquire the chassis temperature T. d 1 When the chassis temperature T d 1 Satisfying relation: T d 1 ≥0, control module 122 is used to determine whether the compressor is in low-temperature heating mode; T d 1 <0, the indoor unit 121 of the air conditioner is used to determine that the compressor is in low-temperature defrosting condition. The second determination parameter includes the chassis temperature T. d 1 .

[0138] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the third detection unit further includes a third temperature detection unit. When the compressor is in low-temperature heating mode, the control module 122 is used to enter conventional heating control based on the heating command, the third temperature detection unit is used to acquire a second temperature parameter, and the control module 122 is used to enter heating control based on the second temperature parameter. When the compressor is in low-temperature defrosting mode, the control module 122 is used to control the compressor to increase its frequency and start the heat transfer device.

[0139] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the third detection unit further includes a fourth temperature detection unit and a fifth temperature detection unit. The fourth temperature detection unit is used to detect and obtain the compressor motor temperature T. ɑ 2 and compressor motor temperature T ɑ 2 The corresponding second rated temperature Tmax2 The fifth temperature detection unit is used to detect and obtain the tube temperature T of the evaporator section. e 1 and the temperature T of the evaporator section e 1 The corresponding third rated temperature T max3 When the compressor motor temperature T ɑ 2 Second rated temperature T max2 evaporator section pipe temperature T e 1 and the third rated temperature T max3 Satisfying relation: T ɑ 2 ≦T max2 And T e 1 ≦T max3 At this time, control module 122 is used to enter normal heating control; T ɑ 2 >T max2 and / or T e 1 >T max3 At that time, the second detection unit is used to acquire the first temperature parameter, and the control module 122 is used to control the heat transfer device based on the first temperature parameter. The second temperature parameter includes the compressor motor temperature T. ɑ 2 Second rated temperature T max2 evaporator section pipe temperature T e 1 and the third rated temperature T max3 .

[0140] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the third detection unit further includes a sixth temperature detection unit. The control module 122 is used to control the compressor to increase its frequency to the low-temperature defrosting frequency H1, start the heat transfer device, and run for time t1. The sixth temperature detection unit is used to detect and acquire the chassis temperature T. d 2 When the chassis temperature T d 2 Satisfying relation: T d 2 ≧0, control module 122 is used to control the compressor to enter the low temperature heating mode.

[0141] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the heat transfer device further includes an electric heating belt, which is disposed on the chassis. In the control method, when the chassis temperature T... d 2 Satisfying relation: T d 2 <0, control module 122 is used to control the operation of the electric heating belt until Td 2 ≧0.

[0142] Preferably, in conjunction with the above scheme, as an embodiment of the present invention, the second detection unit includes a seventh temperature detection unit and an eighth temperature detection unit. The seventh temperature detection unit is used to detect and acquire the compressor outer wall temperature T. o 1 The eighth temperature detection unit is used to detect and acquire the chassis temperature T. d 3 When the compressor outer wall temperature T o 1 and chassis temperature T d 3 Satisfying relation: T o 1 ≧T d 3 Control module 122 is used to start the heat transfer device, with a running time t2; T o 1 <T d 3 The control module 122 is used to maintain the current state of the compressor. The first temperature parameter includes the compressor outer wall temperature T. o 1 and chassis temperature T d 3 .

[0143] Accordingly, in conjunction with the above schemes, such as Figure 9 As shown, the present invention also provides a control system 13 for a heat transfer device, including a processor 131 and a memory 132. The memory 132 stores computer program instructions that can be executed by the processor 131. When the processor 131 executes the computer program instructions, it implements the control method for the heat transfer device provided in the embodiment of the present invention.

[0144] The memory 132 includes, but is not limited to: RAM, ROM, magnetic disk, magnetic tape, optical disk, flash memory, USB flash drive, portable hard drive, memory card, memory stick, network server storage, network cloud storage, etc. The processor 131 includes, but is not limited to: CPU (Central Processing Unit), GPU (Graphics Processing Unit), MCU (Microcontroller Unit), etc.

[0145] Accordingly, in conjunction with the above solutions, the present invention also provides a non-transitory computer-readable storage medium storing computer program instructions, which, when called and executed by a processor, implement the steps of the control method for the heat transfer device provided in the embodiments of the present invention.

[0146] The technical solutions provided in the relevant embodiments of this application have reasonable structural or logical designs, and can control the heat transfer device according to the different operating conditions of the air conditioner compressor, thereby solving the problems of low heat dissipation efficiency of the compressor under high temperature conditions, high defrosting and de-icing energy consumption and inability to utilize waste heat under low temperature conditions in the prior art.

[0147] The embodiments of this application can significantly improve the heat dissipation efficiency of the compressor, maintain a non-overheated state under high-temperature conditions, ensure the capacity output of the air conditioner, and extend the service life of the compressor and related components; under low-temperature conditions, the waste heat generated by the compressor operation is used for chassis defrosting and de-icing, which greatly reduces energy consumption.

[0148] In the embodiments of this application, the heat transfer device is constructed to transfer the waste heat of the compressor to the chassis under high temperature conditions, thereby enhancing the heat dissipation of the compressor; under low temperature conditions, the waste heat of the compressor is used to defrost and de-ice the chassis, thereby eliminating the contradiction between the capacity output under high temperature conditions and the reliability of compressor operation, and maintaining the shortcoming of high energy consumption for chassis defrosting and de-icing under low temperature conditions.

[0149] In the relevant embodiments of this application, a microchannel copper tube with a capillary wick is used to build a thermal bridge between the air conditioner compressor and the air conditioner outdoor unit chassis. This allows the working fluid inside the circulation pipeline to evaporate and absorb heat when passing through the compressor, and to condense and release heat when passing through the chassis. After condensation, it flows back to the evaporator tube section under the action of the capillary wick, completing the heat exchange cycle. This enhances the heat dissipation of the compressor and simultaneously uses the waste heat of the compressor to defrost and de-ice the chassis.

[0150] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A heat pipe heat transfer device for an air conditioner outdoor unit, the air conditioner outdoor unit comprising a compressor and a chassis, characterized in that, The heat transfer device includes an evaporator section, a condenser section, and a first intermediate section and a second intermediate section connecting the evaporator section and the condenser section; wherein: The evaporator tube section is used to be installed on the compressor to absorb the heat dissipation of the compressor; The condenser pipe section is used to be installed on the chassis to release heat to the chassis; The inlet end of the first intermediate pipe section is connected to the outlet end of the evaporator pipe section, and the outlet end of the first intermediate pipe section is connected to the inlet end of the condenser pipe section. The inlet end of the second intermediate pipe section is connected to the outlet end of the condenser pipe section, and the outlet end of the second intermediate pipe section is connected to the inlet end of the evaporator pipe section. The evaporator section, the condenser section, and the first and second intermediate pipe sections connected between the evaporator section and the condenser section constitute a circulation loop. The circulation loop contains a heat transfer medium, and the inner wall surface of the second intermediate pipe section is provided with a capillary structure. The circulation loop is equipped with a valve, which can be controlled to open or close the circulation loop according to the operating status of the compressor and / or the frosting condition of the chassis. The evaporator tube section is arranged around the compressor housing; The condenser tube section is arranged in a ring around the surface of the chassis; The heat transfer device includes M circulation loops, each of the M circulation loops having M evaporation tube sections and M circulation loops having M condensation tube sections; M evaporator tube segments are arranged sequentially along the outer periphery of the compressor, and M condenser tube segments are arranged sequentially from the inside to the outside along the surface of the chassis, where M ≥ 2.

2. The heat transfer device according to claim 1, characterized in that: The M circulation loops are divided into N circulation loop groups. The M evaporator tube segments are divided into N groups along the height of the compressor housing. There is a distance between each pair of adjacent evaporator tube segments. The higher the position of the evaporator tube segment group, the closer its corresponding condenser tube segment group is to the inner side of the chassis surface. M≥N>1.

3. The heat transfer device according to claim 2, characterized in that: M condenser tube segments are arranged sequentially from the outside to the inside of the chassis surface, with the closer to the inside of the chassis surface, the lower the position. The tube surfaces of the M condenser tube segments form a slope in the radial direction of the chassis surface.

4. The heat transfer device according to claim 1, characterized in that: A heat-conducting layer is provided at the position where the evaporator section is in contact with the compressor housing, and the compressor housing is a metal housing; and / or, a heat-conducting layer is provided at the position where the condenser section is in contact with the surface of the chassis, and the chassis is a metal chassis.

5. The heat transfer device according to claim 1, characterized in that: The evaporator tube section has a replenishment chamber for storing heat transfer medium on its outlet side and a capillary structure on its inlet side.

6. A control method for a heat transfer device, wherein the heat transfer device is any one of claims 1-5, characterized in that, The control method includes: Determine the compressor's operating condition; When the compressor is in the target compressor operating condition, demand determination parameters are obtained. The demand determination parameters include frequency parameters representing the compressor operating state or characteristic parameters representing the compressor heat dissipation demand. The operating status of the heat transfer device is controlled according to the required parameters.

7. The method according to claim 6, characterized in that, Determining the compressor operating condition includes: Obtain operating condition determination parameters, which include a first determination parameter under cooling conditions or a second determination parameter under heating conditions; The compressor operating condition is determined based on the operating condition determination parameters. The compressor operating condition includes multiple operating conditions under cooling conditions or multiple operating conditions under heating conditions.

8. The method according to claim 7, characterized in that, Determining the compressor operating condition based on the operating condition determination parameters includes: In the case of refrigeration, a judgment is made based on the first determination parameter, which includes the refrigerant saturation temperature T. oil and compressor motor temperature T ɑ 1 ; When the refrigerant saturation temperature T oil The compressor motor temperature T ɑ 1 Satisfy T oil ≦T ɑ 1 ≦T max1 At that time, the compressor operates under normal refrigeration conditions, and the T... max1 The first rated temperature; When T ɑ 1 <T oil At that time, the compressor operates under low-temperature refrigeration conditions; When T ɑ 1 >T max1 At that time, the compressor operates under high-temperature refrigeration conditions; In heating mode, the judgment is made based on the second determination parameter, which includes a second determination parameter A for the later stage of compressor startup and / or a second determination parameter B for the early stage of compressor startup. The second determination parameter A includes the indoor unit evaporator pipe temperature T. e 1 and compressor motor temperature T ɑ 2 The second B determination parameter includes the air conditioning chassis temperature; When T e 1 ≤Second rated temperature and T ɑ 2 When the temperature is ≤3 rated temperature, the compressor operates under normal temperature heating conditions; otherwise, the compressor operates under unconventional normal temperature heating conditions. When the temperature of the air conditioner chassis is greater than or equal to the set temperature, the compressor operates in normal temperature heating mode; otherwise, the compressor operates in low temperature heating mode.

9. The method according to claim 8, characterized in that, The method further includes: If the compressor operating condition is determined to be the ambient temperature heating condition according to the second B determination parameter, the compressor operating condition is determined to be either the ambient temperature conventional heating condition or the ambient temperature unconventional heating condition according to the second A determination parameter.

10. The method according to claim 7, characterized in that, In the case of refrigeration, the compressor operating conditions include conventional refrigeration, low-temperature refrigeration, and high-temperature refrigeration. In heating mode, the compressor operating conditions include normal temperature conventional heating mode and normal temperature unconventional heating mode, or the compressor operating conditions include normal temperature heating mode and low temperature heating mode. The target compressor operating conditions include high-temperature refrigeration conditions under the refrigeration conditions, and normal-temperature unconventional heating conditions and low-temperature heating conditions under the heating conditions.

11. The method according to claim 10, characterized in that, When the target compressor operates under either the high-temperature cooling condition or the normal-temperature unconventional heating condition, the demand determination parameter is the characteristic parameter, which includes the compressor outer wall temperature and the air conditioner chassis temperature. The step of controlling the operating state of the heat transfer device according to the demand determination parameters includes: If the temperature of the compressor outer wall is greater than or equal to the temperature of the air conditioner chassis, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state. When the target compressor is operating under the low-temperature heating condition, the demand determination parameter is the frequency parameter. At this time, controlling the operating state of the heat transfer device according to the determination parameter includes: If the frequency parameter is greater than the set frequency value, the heat transfer device is controlled to be in working state; otherwise, the heat transfer device is controlled to be in non-working state and the compressor is controlled to increase its frequency.

12. The method according to claim 11, characterized in that, The method further includes: When the heat transfer device is in operation, after a set time, the demand determination parameters are reacquired to re-determine the compressor operating condition based on the demand determination parameters.

13. An electronic device, characterized in that, The electronic device includes: Memory, used to store computer instructions; A processor for invoking and executing the computer instructions to implement the method as described in any one of claims 6-12.

14. An outdoor unit for an air conditioner, characterized in that, The outdoor unit of the air conditioner includes a compressor and a heat transfer device according to any one of claims 1-5.

15. An outdoor unit for an air conditioner, characterized in that, The method described in any one of claims 6-12 shall be used.

16. An outdoor unit for an air conditioner, characterized in that, Includes the electronic device as described in claim 13.

Images