Heat dissipation loop and air conditioner

Abstract

The utility model discloses a heat dissipation loop and an air conditioner, and the heat dissipation loop comprises a cooling assembly, a heat dissipation assembly and a heat dissipation assembly, the first input end of the heat exchange assembly is connected with the first output end of the cooling assembly, the second input end of the heat exchange assembly is connected with the second output end of the cooling assembly, and the first output end of the heat exchange assembly is connected with the air supply port; the input end of the recovery assembly is connected with the second output end of the heat exchange assembly, the first output end of the recovery assembly is connected with the air return port, the second output end of the recovery assembly is connected with the air supply port, and the recovery assembly is used for evaporating the connected liquid and recovering the liquid and the connected air to the compressor together; the controller is connected with the controlled end of the cooling assembly, and the controller is used for controlling the cooling assembly to adjust the flow of the liquid subjected to flash evaporation treatment according to the working frequency of the compressor so as to adjust the cooling capacity generated by flash evaporation; according to the technical scheme, the heat dissipation effect on the mainboard is improved, and the mainboard is cooled in time.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a heat dissipation loop and an air conditioner. Background Art

[0002] At present, air cooling is often used for heat exchange when cooling the mainboard of the air conditioner outdoor unit. However, in some special cases, such as when the outdoor temperature is too high in summer, the fan is affected by the ambient temperature and the temperature of the wind blown out is too high to meet the heat dissipation requirements of the mainboard, resulting in the mainboard being unable to cool down in time. Utility Model Content

[0003] The main purpose of the utility model is to provide a heat dissipation loop and an air conditioner, aiming to improve the heat dissipation effect on the mainboard and to cool the mainboard in time.

[0004] To achieve the above-mentioned purpose, the heat dissipation loop proposed by the utility model is applied to an air conditioner, wherein the air conditioner comprises a compressor and a mainboard, wherein the compressor has an exhaust port, an air return port and an air supply port, and the heat dissipation loop comprises:

[0005] A cooling component, whose input end is connected to the exhaust port, and the cooling component is used to cool the connected gas into liquid, and then perform flash treatment or supercooling treatment on the liquid, and use the cold energy generated by flashing to further supercool the liquid;

[0006] A heat exchange component, wherein the first input end thereof is connected to the first output end of the cooling component, the second input end thereof is connected to the second output end of the cooling component, and the first output end thereof is connected to the gas supply port, and the heat exchange component is used to exchange heat between the liquid and the gas and the mainboard respectively;

[0007] A recovery component, whose input end is connected to the second output end of the heat exchange component, whose first output end is connected to the gas return port, and whose second output end is connected to the gas replenishment port, wherein the recovery component is used to evaporate the connected liquid and recover it together with the connected gas to the compressor;

[0008] A controller is connected to the controlled end of the cooling component, and is used to control the cooling component to adjust the flow of the liquid treated by the flash according to the working frequency of the compressor, so as to adjust the cooling amount generated by the flash.

[0009] In some embodiments, the cooling assembly comprises:

[0010] A condenser, whose input end is used to be connected to the exhaust port, and the condenser is used to cool the incoming gas and output it as liquid;

[0011] A first processing component, wherein the first input end and the second input end are respectively connected to the output end of the condenser, the first output end is connected to the first input end of the heat exchange component, the second output end is connected to the second input end of the heat exchange component, and the controlled end is electrically connected to the controller;

[0012] The first processing component is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to further supercool the liquid by utilizing the cold energy generated by the flash;

[0013] The controller is further configured to control the first processing component to reduce the flow rate of the liquid connected to the second input end thereof when the operating frequency reaches a first preset frequency.

[0014] In some embodiments, the first processing component includes:

[0015] a first expansion valve, an input end of which is connected to an output end of the condenser;

[0016] The first cooler comprises a first branch and a second branch, wherein the first branch is connected in series between the output end of the condenser and the first input end of the heat exchange component, and is used to perform supercooling treatment on the connected liquid, and the second branch is connected in series between the output end of the first expansion valve and the second input end of the heat exchange component, and is used to perform flash treatment on the connected liquid;

[0017] The first expansion valve is used to reduce the flow rate of the liquid input into the first branch under the control of the controller when the operating frequency reaches a first preset frequency.

[0018] In some embodiments, the heat dissipation loop further includes:

[0019] A first temperature detection device is attached to the mainboard, and an output end thereof is connected to the controller. The first temperature detection device is used to collect the temperature of the mainboard and output a corresponding first temperature detection voltage to the controller;

[0020] The controller is also used to control the cooling component to increase the flow rate of the liquid to be flashed when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency;

[0021] And, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than the second preset frequency, the cooling component is controlled to reduce the flow rate of the liquid being flash-processed; wherein the first preset frequency is higher than the second preset frequency.

[0022] In some embodiments, the recovery component comprises:

[0023] An evaporation component, the output end of which is used to be connected to the air return port;

[0024] A second processing component, wherein the first input end and the second input end are respectively connected to the first output end of the heat exchange component, the first output end is connected to the input end of the evaporation component, and the second output end is used to access the air supply port;

[0025] The second processing component is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to output the gas after the supercooling treatment to the evaporation component, and to output the gas after the flash treatment to the gas replenishment port to replenish gas for the compressor;

[0026] The evaporation component is also used to expand and evaporate the connected liquid and output the corresponding gas to the return air port.

[0027] In some embodiments, the second processing component further has a controlled end, and is connected to the controller;

[0028] The controller is further configured to control the second processing component to increase the flow rate of the liquid input into the second input end thereof when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency;

[0029] And, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than a second preset frequency, the second processing component is controlled to reduce the flow rate of the liquid input into its second input end.

[0030] In some embodiments, the second processing component includes:

[0031] A second temperature detection device is attached to the heat exchange component, and a controlled end of the second temperature detection device is electrically connected to the controller, and is used to detect the temperature of the liquid and / or gas output by the heat exchange component, and output a corresponding second temperature detection voltage to the controller;

[0032] The controller is also used to control the second processing component to adjust the flow rate of the liquid input into its second input end according to the received second temperature detection voltage when the operating frequency of the compressor is greater than a preset frequency.

[0033] In some embodiments, the recovery component comprises:

[0034] a second expansion valve, an input end of which is connected to the first output end of the heat exchange component;

[0035] The second cooler comprises a third branch and a fourth branch, wherein the third branch is connected in series between the first output end of the heat exchange component and the input end of the evaporation component, and is used to supercool the connected liquid, and the third branch is connected in series between the output end of the second expansion valve and the air supply port, and is used to flash the connected liquid and then supply air to the compressor;

[0036] The second expansion valve is used to expand the connected liquid so as to replenish air for the compressor after the liquid is flashed into gas through the fourth branch.

[0037] In some embodiments, the evaporation assembly comprises:

[0038] an evaporator, the output end of which is connected to the air return port;

[0039] The third expansion valve is connected in series between the input end of the evaporator and the first output end of the second processing component. The third expansion valve is used to expand the connected liquid so that it can be evaporated into gas by the evaporator and then recovered to the return port.

[0040] The utility model also provides an air conditioner, comprising a mainboard, a compressor and a heat dissipation loop, wherein the compressor is connected in series between the input end and the output end of the heat dissipation loop, and is used to drive the heat dissipation loop to perform heat exchange with the mainboard.

[0041] The technical solution of the utility model is to arrange a cooling component in front of the heat exchange component, so that the refrigerant discharged from the compressor is liquefied, and then divided into liquid and gas, and the cold generated by the flash of the gas is used to supercool the refrigerant liquid, so as to increase the heat exchange capacity of the refrigerant input to the heat exchange component. Therefore, by adjusting the flow rate of the flash liquid of the cooling component, the heat exchange capacity of the refrigerant input to the heat exchange component can be adjusted, and the heat exchange of the mainboard under different external environments is realized, the heat dissipation effect of the mainboard is improved, and the mainboard is cooled in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0043] Figure 1 This is a schematic structural diagram of an embodiment of a heat dissipation loop of the utility model;

[0044] Figure 2 It is a schematic structural diagram of an embodiment of a cooling assembly 100 in the present utility model;

[0045] Figure 3 It is a structural schematic diagram of another embodiment of the heat dissipation loop of the utility model;

[0046] Figure 4 It is a structural schematic diagram of an embodiment of a recycling component 300 in the present utility model;

[0047] Figure 5 It is a structural schematic diagram of another embodiment of the heat dissipation loop of the utility model;

[0048] Figure 6 It is a structural schematic diagram of another embodiment of the heat dissipation system of the utility model.

[0049] Description of Figure Numbers:

[0050] Label name Label name 100 Cooling components 311 Evaporator 110 Condenser 312 The third expansion valve 120 First processing component 320 Second processing component 121 First expansion valve 321 Second expansion valve 122 First cooler 322 Second cooler 200 Heat exchange components 400 Controller 300 Recycling components 500 The first temperature detection device 310 Evaporation components 600 Second temperature detection device

[0051] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0054] The utility model provides a heat dissipation loop which is applied to an air conditioner.

[0055] Reference Figure 1 In one embodiment, the air conditioner includes a compressor and a mainboard, the compressor has an exhaust port, a return air port and an air supply port, and the heat dissipation loop includes:

[0056] A cooling component 100, whose input end is connected to the exhaust port, is used to cool the incoming gas into liquid, and then perform flash treatment or supercooling treatment on the liquid, and further supercool the liquid by using the cold energy generated by flashing;

[0057] A heat exchange component 200, wherein the first input end thereof is connected to the first output end of the cooling component 100, the second input end thereof is connected to the second output end of the cooling component 100, and the first output end thereof is connected to the gas supply port, and the heat exchange component 200 is used to exchange heat between the liquid and the gas and the mainboard respectively;

[0058] A recovery component 300, whose input end is connected to the second output end of the heat exchange component 200, whose first output end is connected to the gas return port, and whose second output end is connected to the gas replenishment port. The recovery component 300 is used to evaporate the connected liquid and recover it together with the connected gas to the compressor;

[0059] The controller 400 is connected to the controlled end of the cooling component 100. The controller 400 is used to control the cooling component 100 to adjust the flow rate of the liquid treated by the flash according to the working frequency of the compressor, so as to adjust the cooling amount generated by the flash.

[0060] In this embodiment, the controller 400 may be a small board provided separately, or may be integrated on a main board of the outdoor unit of the air conditioner to be heat exchanged.

[0061] The cooling component 100, the heat exchange component 200, the recovery component 300 and the compressor are connected by pipelines. When the air conditioner is working, the refrigerant in the pipeline is discharged from the exhaust port of the compressor under the pump pressure of the compressor. At this time, the refrigerant ejected by the compressor may be a gas or a gas-liquid mixture. After receiving the refrigerant discharged from the exhaust port, the cooling component 100 condenses it into liquid, and diverts these liquids under the control of the controller 400, so that the liquids are respectively input into the first input end and the second input end of the cooling component 100.

[0062] Specifically, the control signal output by the controller 400 is related to the current operating frequency of the compressor detected by it. When the mainboard needs a higher heat exchange amount, and the compressor is protected by the condenser 110 tube temperature, exhaust temperature, current overcurrent, etc., resulting in a limited frequency that is too low, the refrigerant flow in the heat dissipation loop is too low, and the heat exchange component 200 cannot have sufficient heat exchange capacity. At this time, the controller 400 controls the supercooling component to increase the liquid input to its second input end, and flashes the liquid. Since the flash treatment is a gas generated by vaporizing the liquid due to a sudden decrease in pressure, it can generate a large amount of cold during flashing. The liquid connected to the first input end is further supercooled after being supercooled, so that the heat exchange component 200 has sufficient heat exchange capacity.

[0063] When the compressor operates at a higher frequency under rated conditions, such as an operating frequency of 50 Hz, it means that the flow rate of the refrigerant in the heat dissipation loop is large and the flow rate is fast. At this time, there is no need to flash the cooling capacity generated by the refrigerant to further supercool the liquid that is about to be input into the heat exchange component 200. The heat exchange of the main board can be achieved by the refrigerant liquid alone. Therefore, the controller 400 can control the supercooling component to reduce the liquid input into its second input end.

[0064] Thus, after the heat exchange component 200 exchanges heat with the main board, the recovery component 300 can directly recover the gas after the heat exchange and output it to the air supply port to replenish the compressor. In addition, it can also evaporate the liquid after the heat exchange and recover it to the return air port for reflux, or flash a part of the liquid and output it to the air supply port as replenishment gas to increase the air supply to the compressor.

[0065] The technical solution of the utility model is to arrange the cooling assembly 100 in front of the heat exchange assembly 200, so that the refrigerant discharged from the compressor is liquefied, and then divided into liquid and gas, and the cold generated by the flash of the gas is used to supercool the refrigerant liquid, so as to increase the heat exchange capacity of the refrigerant input to the heat exchange assembly 200. Therefore, by adjusting the flow rate of the flash liquid of the cooling assembly 100, the heat exchange capacity of the refrigerant input to the heat exchange assembly 200 can be adjusted, and the heat exchange of the mainboard under different external environments is realized, the heat dissipation effect of the mainboard is improved, and the mainboard is cooled in time.

[0066] Reference Figure 1 , Figure 2 and Figure 6 In one embodiment, the cooling assembly 100 comprises:

[0067] A condenser 110, whose input end is used to be connected to the exhaust port, and the condenser 110 is used to cool the incoming gas and output it as liquid;

[0068] A first processing component 120, wherein a first input end and a second input end thereof are respectively connected to the output end of the condenser 110, a first output end thereof is connected to the first input end of the heat exchange component 200, a second output end thereof is connected to the second input end of the heat exchange component 200, and a controlled end thereof is electrically connected to the controller 400;

[0069] The first processing component 120 is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to further supercool the liquid by utilizing the cold energy generated by the flash;

[0070] The controller 400 is further configured to control the first processing component 120 to reduce the flow rate of the liquid connected to the second input end thereof when the operating frequency reaches a first preset frequency.

[0071] In this embodiment, when the compressor is working, the condenser 110 receives the gas or gas-liquid mixture discharged from the exhaust port of the compressor, and condenses all of them, and outputs liquid refrigerant to the first processing component 120. At this time, the first processing component 120 controls the flow of the liquid connected to the second input end under the control of the controller 400. The first preset frequency is set by the R&D personnel and is the high-frequency operating frequency corresponding to the compressor, such as 50Hz. When the operating frequency of the compressor reaches the first preset frequency, it means that the heat dissipation component can achieve heat exchange with the mainboard only by the refrigerant liquid, so the controller 400 will control the first processing component 120 to reduce the liquid input to its second input end.

[0072] Specifically, the first processing component 120 includes:

[0073] A first expansion valve 121, an input end of which is connected to an output end of the condenser 110;

[0074] The first cooler 122 includes a first branch and a second branch, wherein the first branch is connected in series between the output end of the condenser 110 and the first input end of the heat exchange component 200, and is used to perform supercooling treatment on the connected liquid, and the second branch is connected in series between the output end of the first expansion valve 121 and the second input end of the heat exchange component 200, and is used to perform flash treatment on the connected liquid;

[0075] The first expansion valve 121 is used to reduce the flow rate of the liquid input into the first branch under the control of the controller 400 when the operating frequency reaches the first preset frequency.

[0076] In this embodiment, the first expansion valve 121 is used to expand the connected liquid so that it can be further flashed into gas in the second branch after entering the first cooler 122, and the liquid flow input into the second branch is controlled by adjusting its opening and closing angle.

[0077] Specifically, the control signal output by the controller 400 is used to adjust the opening and closing angle of the first expansion valve 121. When the main board requires a higher heat exchange amount and the operating frequency of the compressor is too low, the controller 400 controls the first expansion valve 121 to increase its opening and closing angle so that more liquid is input into the second branch for flash processing. When the compressor operates at a higher frequency under rated conditions, heat exchange of the main board can be achieved only by the refrigerant liquid. The controller 400 controls the first expansion valve 121 to reduce its opening and closing angle so that the liquid input into the second branch is reduced, and the liquid connected to the first branch does not need to be further cooled.

[0078] Reference Figure 1 and Figure 3 In one embodiment, the heat dissipation loop further includes:

[0079] A first temperature detection device 500 is attached to the mainboard, and an output end thereof is connected to the controller 400. The first temperature detection device 500 is used to collect the temperature of the mainboard and output a corresponding first temperature detection voltage to the controller 400;

[0080] The controller 400 is further configured to control the cooling assembly 100 to increase the flow rate of the liquid being flash-processed when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency;

[0081] And, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than the second preset frequency, the cooling component 100 is controlled to reduce the flow rate of the liquid being flash-treated; wherein the first preset frequency is higher than the second preset frequency.

[0082] It is understandable that although when the operating frequency of the compressor reaches the first preset frequency, it can be directly determined that the refrigerant flow in the heat dissipation loop is sufficient to cool the mainboard, when the compressor is operating at a lower frequency, it cannot directly indicate whether the supercooling of the refrigerant is unable to cool the mainboard. For example, under high temperature conditions, the compressor is protected by the condenser 110 tube temperature, exhaust temperature, current overcurrent, etc., and its frequency limiting frequency is too low. At this time, it is determined that the refrigerant requires a higher supercooling amount. When the compressor is in a stable state, even if the operating frequency is low, the current passing through the mainboard is small and the heat dissipation is low. At this time, the refrigerant does not need a higher supercooling amount.

[0083] Therefore, in order to more accurately control the liquid flow connected to the second input end of the cooling component 100, in the present embodiment, a first temperature detection component is provided for collecting the operating temperature generated by the mainboard, wherein the preset voltage represents the critical temperature at which the mainboard can work normally, and may also be a margin below the critical temperature. For example, when the mainboard can work normally at a maximum operating temperature of 95°, the preset voltage represents 90°.

[0084] Therefore, when the controller 400 detects that the first temperature detection voltage reaches the preset voltage, it indicates that the mainboard is operating under high temperature conditions. If the operating frequency under this condition is not higher than the second preset frequency, the refrigerant input to the heat exchange component 200 requires a higher amount of supercooling. At this time, the controller 400 controls the supercooling component to increase the liquid input to its second input end, and flashes the liquid. Through the cooling energy generated by the flash, the liquid connected to the first input end is further supercooled after being supercooled, thereby allowing the heat exchange component 200 to have sufficient heat exchange capacity.

[0085] When the controller 400 detects that the first temperature detection voltage does not reach the preset voltage, but the operating frequency is not higher than the second preset frequency, it means that the compressor is in a low-frequency operation under stable working conditions, the current passing through the mainboard is small, and the heat dissipation of the mainboard can be achieved by the flow of liquid refrigerant alone. Therefore, the controller 400 can control the supercooling component to reduce the liquid input to its second input end. The second preset frequency is set by the R&D personnel and is the low-frequency operating frequency corresponding to the compressor, such as 20Hz.

[0086] Reference Figure 1 , Figure 4 and Figure 6 In one embodiment, the recycling component 300 includes:

[0087] The evaporation component 310, whose output end is used to connect with the air return port;

[0088] The second processing component 320, whose first input end and second input end are respectively connected to the first output end of the heat exchange component 200, whose first output end is connected to the input end of the evaporation component 310, and whose second output end is used to connect to the air supply port;

[0089] The second processing component 320 is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to output the gas after the supercooling treatment to the evaporation component 310, and to output the gas after the flash treatment to the gas replenishment port to replenish gas for the compressor;

[0090] The evaporation component 310 is also used to expand and evaporate the connected liquid and output the corresponding gas to the return port.

[0091] In this embodiment, when the compressor is working, the gas output by the heat exchange component 200 is directly output to the air supply port of the compressor for air supply to the compressor, and the liquid output by the heat exchange component 200 is input to the second processing component 320 for further processing. The second processing component 320 controls the flow of the liquid connected to the second input end under the control of the controller 400, and re-flashes part of the connected liquid into gas, which is input to the air supply port of the compressor, and together with the gas output by the heat exchange component 200, it is used to supply air to the compressor. The liquid input to the first input end is input to the evaporation component 310 after cooling, and the evaporation component 310 performs expansion and evaporation on the liquid, so that it is evaporated into gas and recycled by the return port.

[0092] Specifically, the recycling component 300 includes:

[0093] A second expansion valve 321, an input end of which is connected to a first output end of the heat exchange component 200;

[0094] The second cooler 322 includes a third branch and a fourth branch, wherein the third branch is connected in series between the first output end of the heat exchange component 200 and the input end of the evaporation component 310, and is used to supercool the connected liquid, and the third branch is connected in series between the output end of the second expansion valve 321 and the air supply port, and is used to flash the connected liquid and then supply air to the compressor;

[0095] The second expansion valve 321 is used to expand the connected liquid so as to replenish air for the compressor after it is flashed into gas through the fourth branch.

[0096] The evaporation assembly 310 includes:

[0097] The evaporator 311, whose output end is connected to the air return port;

[0098] The third expansion valve 312 is connected in series between the input end of the evaporator 311 and the first output end of the second processing component 320. The third expansion valve 312 is used to expand the connected liquid so that it can be evaporated into gas by the evaporator 311 and then recovered to the return port.

[0099] In this embodiment, the second expansion valve 321 and the third expansion valve 312 are used to expand the connected liquid so that it can be further flashed or evaporated into gas in the second branch after entering the second cooler 322 .

[0100] Reference Figure 1 , Figure 4 and Figure 6In one embodiment, the second processing component 320 also has a controlled end, and is connected to the controller 400;

[0101] The controller 400 is further configured to control the second processing component 320 to increase the flow rate of the liquid input into the second input end thereof when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency;

[0102] Furthermore, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than the second preset frequency, the second processing component 320 is controlled to reduce the flow rate of the liquid input into the second input end thereof.

[0103] It is understandable that in the heat dissipation loop, the flow rate and flow of the refrigerant are controlled by the compressor. By replenishing air to the compressor and increasing the operating frequency of the compressor, the flow of the refrigerant can be increased. Similarly, reducing the air replenishment to the compressor can also reduce the flow of the refrigerant.

[0104] Based on this, in this embodiment, the controller 400 can control the flow rate of the liquid vaporized by the second processing component 320 and adjust the amount of air replenishment to the compressor.

[0105] In the second processing assembly 320 , the second expansion valve 321 is controlled by the controller 400 , and the liquid flow in the fourth branch of the second cooler 322 can be adjusted by adjusting the opening angle of the second expansion valve 321 .

[0106] When the compressor is working, the liquid output by the heat exchange component 200 is input into the second processing component 320, and the flow rate of the liquid input into the fourth branch is adjusted by the second expansion valve 321. When the controller 400 detects that the first temperature detection voltage reaches the preset voltage, it means that the mainboard is working under high temperature conditions. If the working frequency under this condition is not higher than the second preset frequency, the refrigerant input into the heat exchange component 200 needs a higher supercooling amount, and the heat dissipation loop needs to provide a larger refrigerant flow rate, so the compressor needs to be supplemented with air. At this time, the controller 400 controls the second expansion valve 321 to increase its opening angle to increase the flow rate of the liquid input into the fourth branch, and flash these liquids to generate corresponding gas input into the gas supplement port to supplement the compressor with air and increase enthalpy. At the same time, due to the high temperature condition, the temperature of the refrigerant output by the heat exchange component 200 increases, and the second cooler 322 can also use the coldness generated by flashing to further increase the supercooling degree of the liquid connected to the third branch after being supercooled, thereby reducing the exhaust temperature and pressure of the compressor.

[0107] When the controller 400 detects that the first temperature detection voltage has not reached the preset voltage, but the operating frequency is not higher than the second preset frequency, it means that the compressor is in a low-frequency operation under stable conditions. The current passing through the mainboard is small, and the heat dissipation of the mainboard can be achieved only by the flow of liquid refrigerant. Therefore, there is no need to replenish air in the compressor. At this time, the controller 400 controls the second expansion valve 321 to reduce its opening angle to reduce the flow rate of liquid input to the fourth branch and reduce the flow rate of refrigerant in the heat dissipation loop.

[0108] Reference Figure 1 , Figure 5 and Figure 6 In one embodiment, the second processing component 320 includes:

[0109] A second temperature detection device 600 is attached to the heat exchange component 200, and a controlled end of the second temperature detection device 600 is electrically connected to the controller 400, and is used to detect the temperature of the liquid and / or gas output by the heat exchange component 200, and output a corresponding second temperature detection voltage to the controller 400;

[0110] The controller 400 is further configured to control the second processing component 320 to adjust the flow rate of the liquid input into its second input end according to the received second temperature detection voltage when the operating frequency of the compressor is greater than a preset frequency.

[0111] It is understandable that when the compressor is working and under rated conditions, the heat dissipation of the mainboard can be achieved only by the flow of liquid refrigerant. However, when the mainboard works for a long time or the current flow is large, it is still possible that the current supercooling of the refrigerant in the heat exchange component 200 is not enough to exchange heat for the mainboard. Therefore, in this embodiment, a second temperature detection device 600 is further provided between the first output end and the second output end of the heat exchange component 200 to collect the refrigerant temperature output by the heat exchange component 200. When the temperature of the liquid and gas flowing out of the electronically controlled radiator is high, due to The operating frequency of the compressor is not limited, so the main board can be heat exchanged by increasing the operating frequency of the compressor and increasing the flow rate of the refrigerant. At this time, the controller 400 needs to control the second expansion valve 321 to increase its opening angle to increase the amount of flash gas in the fourth branch and replenish air and increase enthalpy for the compressor. At the same time, the second cooler 322 can also use the cooling energy generated by the flash to further increase the supercooling degree of the liquid connected to the third branch after the supercooling treatment, thereby reducing the exhaust temperature and pressure of the compressor and improving the heat exchange capacity of the heat exchange component 200.

[0112] The utility model also proposes an air conditioner, the heat dissipation system includes a main board, a compressor and a heat dissipation loop. The specific structure of the heat dissipation loop refers to the above embodiment. The compressor is connected in series between the input end and the output end of the heat dissipation loop to drive the heat dissipation loop and the main board to perform heat exchange. Since the air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0113] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A heat dissipation loop, applied to an air conditioner, the air conditioner comprising a compressor and a mainboard, the compressor having an exhaust port, a return air port and an air supply port, characterized in that: The heat dissipation loop comprises: A cooling component, whose input end is connected to the exhaust port, and the cooling component is used to cool the connected gas into liquid, and then perform flash treatment or supercooling treatment on the liquid, and use the cold energy generated by flashing to further supercool the liquid; A heat exchange component, wherein the first input end thereof is connected to the first output end of the cooling component, the second input end thereof is connected to the second output end of the cooling component, and the first output end thereof is connected to the gas supply port, and the heat exchange component is used to exchange heat between the liquid and the gas and the mainboard respectively; A recovery component, whose input end is connected to the second output end of the heat exchange component, whose first output end is connected to the gas return port, and whose second output end is connected to the gas replenishment port, wherein the recovery component is used to evaporate the connected liquid and recover it together with the connected gas to the compressor; A controller is connected to the controlled end of the cooling component, and is used to control the cooling component to adjust the flow of the liquid treated by the flash according to the working frequency of the compressor, so as to adjust the cooling amount generated by the flash.

2. The heat dissipation loop according to claim 1, characterized in that: The cooling assembly comprises: A condenser, whose input end is used to be connected to the exhaust port, and the condenser is used to cool the incoming gas and output it as liquid; A first processing component, wherein the first input end and the second input end are respectively connected to the output end of the condenser, the first output end is connected to the first input end of the heat exchange component, the second output end is connected to the second input end of the heat exchange component, and the controlled end is electrically connected to the controller; The first processing component is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to further supercool the liquid by utilizing the cold energy generated by the flash; The controller is also used to control the first processing component to reduce the flow rate of the liquid connected to the second input end thereof when the operating frequency reaches a first preset frequency.

3. The heat dissipation loop according to claim 2, characterized in that: The first processing component comprises: a first expansion valve, an input end of which is connected to an output end of the condenser; The first cooler comprises a first branch and a second branch, wherein the first branch is connected in series between the output end of the condenser and the first input end of the heat exchange component, and is used to perform supercooling treatment on the connected liquid, and the second branch is connected in series between the output end of the first expansion valve and the second input end of the heat exchange component, and is used to perform flash treatment on the connected liquid; The first expansion valve is used to reduce the flow rate of the liquid input into the first branch under the control of the controller when the operating frequency reaches a first preset frequency.

4. The heat dissipation loop according to claim 2, characterized in that: The heat dissipation loop also includes: A first temperature detection device is attached to the mainboard, and an output end thereof is connected to the controller. The first temperature detection device is used to collect the temperature of the mainboard and output a corresponding first temperature detection voltage to the controller; The controller is also used to control the cooling component to increase the flow rate of the liquid to be flashed when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency; And, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than the second preset frequency, the cooling component is controlled to reduce the flow rate of the liquid being flash-processed; wherein the first preset frequency is higher than the second preset frequency.

5. The heat dissipation loop according to claim 4, characterized in that: The recycling assembly comprises: An evaporation component, the output end of which is used to be connected to the air return port; A second processing component, wherein the first input end and the second input end are respectively connected to the first output end of the heat exchange component, the first output end is connected to the input end of the evaporation component, and the second output end is used to access the air supply port; The second processing component is used to perform supercooling treatment on the liquid connected to the first input end thereof, and to perform flash treatment on the liquid connected to the second input end thereof, and to output the gas after the supercooling treatment to the evaporation component, and to output the gas after the flash treatment to the gas replenishment port to replenish gas for the compressor; The evaporation component is also used to expand and evaporate the connected liquid and output the corresponding gas to the return air port.

6. The heat dissipation loop according to claim 5, characterized in that: The second processing component also has a controlled end, and is connected to the controller; The controller is further configured to control the second processing component to increase the flow rate of the liquid input into the second input end thereof when it is detected that the first temperature detection voltage reaches a preset voltage and the operating frequency is not higher than a second preset frequency; And, when it is detected that the first temperature detection voltage does not reach the preset voltage and the operating frequency is not higher than a second preset frequency, the second processing component is controlled to reduce the flow rate of the liquid input into its second input end.

7. The heat dissipation loop according to claim 5, characterized in that: The second processing component comprises: A second temperature detection device is attached to the heat exchange component, and a controlled end of the second temperature detection device is electrically connected to the controller, and is used to detect the temperature of the liquid and / or gas output by the heat exchange component, and output a corresponding second temperature detection voltage to the controller; The controller is also used to control the second processing component to adjust the flow rate of the liquid input into its second input end according to the received second temperature detection voltage when the operating frequency of the compressor is greater than a preset frequency.

8. The heat dissipation loop as claimed in claim 5, characterized in that: The second processing component comprises: a second expansion valve, an input end of which is connected to the first output end of the heat exchange component; The second cooler comprises a third branch and a fourth branch, wherein the third branch is connected in series between the first output end of the heat exchange component and the input end of the evaporation component, and is used to supercool the connected liquid, and the third branch is connected in series between the output end of the second expansion valve and the air supply port, and is used to flash the connected liquid and then supply air to the compressor; The second expansion valve is used to expand the connected liquid so as to replenish air for the compressor after the liquid is flashed into gas through the fourth branch.

9. The heat dissipation loop according to claim 5, characterized in that: The evaporation assembly comprises: an evaporator, the output end of which is connected to the air return port; The third expansion valve is connected in series between the input end of the evaporator and the first output end of the second processing component. The third expansion valve is used to expand the connected liquid so that it can be evaporated into gas by the evaporator and then recovered to the return port.

10. An air conditioner, characterized in that: It comprises a mainboard, a compressor and a heat dissipation loop as described in any one of claims 1 to 9, wherein the compressor is connected in series between the input end and the output end of the heat dissipation loop to drive the heat dissipation loop to perform heat exchange with the mainboard.

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