Heat dissipation system and air conditioner with same

Abstract

This invention provides a heat dissipation system and an air conditioner having the same. The heat dissipation system is disposed within the casing of the air conditioner and is used to dissipate heat from electrical components. A drip tray is provided within the casing to collect condensate. The heat dissipation system includes: a radiator, which is in contact with the electrical components and has a refrigerant flow circuit within it; and a cooling component, disposed within the casing, which includes a cooling circuit with an inlet and an outlet. The two ends of the refrigerant flow circuit are respectively connected to the inlet and outlet, so that the coolant in the refrigerant flow circuit flows through the cooling circuit and then returns to the refrigerant flow circuit. At least a portion of the cooling component is located on the drip tray to contact the condensate and cool the coolant in the cooling circuit. This application solves the problem of poor heat dissipation in the electrical components of existing air conditioners.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation technology for air conditioner electrical components, and more specifically, to a heat dissipation system and an air conditioner having the same. Background Technology

[0002] During operation, the electrical box of an air conditioner continuously dissipates heat. Components inside the electrical box are prone to malfunction when exposed to high temperatures for extended periods, affecting the normal operation of the air conditioner. Therefore, heat dissipation components are usually installed inside the air conditioner to cool the electrical box.

[0003] Current technology primarily employs passive air-cooling for the mainboard of the electrical box. This involves an outdoor axial fan driving airflow through heat sinks to dissipate heat. However, in hot weather or with insufficient airflow, excessive temperature rise can occur, triggering overheat protection. Current research often proposes condensate cooling, using a water pump to draw condensate out and cool the mainboard, achieving a stronger cooling effect. However, this approach has several drawbacks. For example, when the window unit is first started or after a prolonged period of inactivity, the lack of internal water can cause the mainboard to fail to cool for a period, leading to shutdown. Alternatively, unclean condensate can introduce particles into the cooling system, damaging the water pump or corroding the pipes. Summary of the Invention

[0004] The main objective of this invention is to provide a heat dissipation system and an air conditioner having the same, in order to solve the problem of poor heat dissipation of the electrical box inside the air conditioner in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a heat dissipation system is provided, disposed within the casing of an air conditioner, for dissipating heat from electrical components. A drip tray is provided within the casing for collecting condensate. The heat dissipation system includes: a radiator, fitted to the electrical components, with a refrigerant flow circuit within the radiator; and a cooling assembly, disposed within the casing, including a cooling circuit with an inlet and an outlet. The two ends of the refrigerant flow circuit are respectively connected to the inlet and outlet, so that coolant in the refrigerant flow circuit flows through the cooling circuit and then returns to the refrigerant flow circuit. At least a portion of the cooling assembly is located on the drip tray to contact the condensate and cool the coolant in the cooling circuit.

[0006] Furthermore, the cooling circuit includes a first cooling section, and the cooling assembly includes: a first cooling component, which is disposed on a water receiving pan and is in contact with condensate; the first cooling section is disposed within the first cooling component; and the refrigerant flow circuit is connected to the first cooling section; the first cooling section is a strip structure, or the first cooling section extends along a curved trajectory.

[0007] Furthermore, the first cooling component includes: a first cooling body disposed on a water receiving pan, at least a portion of the first cooling body being in contact with condensate, a first cooling section disposed within the first cooling body, a first connecting pipe head disposed on the first cooling body, and a refrigerant flow circuit being connected to the first cooling section through the first connecting pipe head; and a first heat dissipation fin disposed on the first cooling body, the first heat dissipation fin extending from the first cooling body in a direction away from the water receiving pan, and multiple first heat dissipation fins being spaced apart.

[0008] Furthermore, the air conditioner also includes a water collection tray for collecting condensate; the cooling assembly also includes a liquid tank, which is disposed on the water collection tray to contact the condensate in the water collection tray and is used to store coolant; a second connecting pipe is disposed on the liquid tank, and the refrigerant flow circuit is connected to the liquid tank through the second connecting pipe, and the coolant in the refrigerant flow circuit flows into the liquid tank through the second connecting pipe and then flows back into the refrigerant flow circuit.

[0009] Furthermore, the liquid tank includes: a base plate disposed on the water spraying pan, the base plate being provided with a flow passage, at least a portion of the flow passage protruding toward the center of the liquid tank, so that the condensate in the water spraying pan cools the coolant in the liquid tank when it flows through the flow passage; wherein, the flow passage includes multiple flow channels, and the multiple flow channels are spaced apart.

[0010] Furthermore, the liquid tank also includes a tank cover, and the cooling assembly further includes: a second cooling component, which is disposed on the tank cover. The second cooling component includes: a second heat dissipation fin disposed on the first end face of the tank cover, with the first end face facing the inside of the liquid tank, the second heat dissipation fin extending from the first end face toward the inside of the liquid tank and immersed in the coolant in the liquid tank; and a third heat dissipation fin disposed on the second end face of the tank cover, with the second end face facing the outside of the liquid tank, the third heat dissipation fin extending from the second end face toward the outside of the liquid tank.

[0011] Furthermore, the air conditioner also includes an outdoor fan, the cooling circuit includes a second cooling section, and the cooling assembly also includes a third cooling component, which is disposed on the side of the outdoor fan. The second cooling section is disposed inside the third cooling component, and the coolant in the second cooling section is cooled by the airflow generated by the outdoor fan.

[0012] Furthermore, the third cooling component includes: a support frame, in which a first confluence channel is provided, the first confluence channel being connected to the liquid outlet of the refrigerant flow circuit; a first pipe fitting, disposed on the support frame, at least a portion of the cavity of the first pipe fitting being a second cooling section; and multiple first pipe fittings, which are spaced apart on the support frame, each first pipe fitting being connected to the first confluence channel, and the coolant in the refrigerant flow circuit being diverted to each first pipe fitting through the first confluence channel.

[0013] Furthermore, a second manifold is provided on the support frame, and the liquid outlet of each first pipe is connected to the second manifold. The second manifold is connected to the liquid inlet of the refrigerant circulation circuit, and the coolant in each first pipe flows back to the refrigerant circulation circuit through the second manifold.

[0014] Furthermore, the air conditioner also includes an indoor fan and an outdoor fan, and the cooling circuit includes a first cooling section and a second cooling section. The cooling assembly includes: a first cooling component, which is disposed on a water receiving pan, and the first cooling section is disposed within the first cooling component; a second pipe, one end of which is connected to the refrigerant flow circuit, and the other end of which passes through the volute of the indoor fan and is connected to the first cooling section; a liquid tank, which is used to store coolant, and the liquid outlet of the first cooling section is connected to the liquid tank; and a third cooling component, which is disposed on the side of the outdoor fan, and the second cooling section is disposed within the third cooling component, and the liquid outlet of the liquid tank is connected to the second cooling section, and the liquid outlet of the second cooling section is connected to the refrigerant flow circuit.

[0015] According to another aspect of the present invention, an air conditioner is provided, including a housing, an electrical component, and a heat dissipation system. The electrical component and the heat dissipation system are respectively disposed in the housing. The heat dissipation system is connected to the electrical component and is used to dissipate heat from the electrical component. The heat dissipation system is the aforementioned heat dissipation system.

[0016] According to the technical solution of this invention, a heat dissipation system is installed inside the casing of an air conditioner for dissipating heat from electrical components. The heat dissipation system includes a radiator and a cooling component. The radiator is in contact with the electrical components and has a refrigerant flow loop within it. The cooling component is installed inside the casing and includes a cooling loop with an inlet and an outlet. Both ends of the refrigerant flow loop are connected to the inlet and outlet, respectively, so that the coolant in the refrigerant flow loop flows through the cooling loop and then returns to the refrigerant flow loop. At least a portion of the cooling component is located on a drip tray to contact the condensate and cool the coolant in the cooling loop. By providing a refrigerant flow loop inside the radiator, the coolant can circulate and directly contact the electrical components, thereby significantly improving heat dissipation efficiency. The high thermal conductivity of the coolant ensures that heat can be quickly transferred from the electrical components to the heat dissipation system, effectively preventing overheating of the electrical components and extending their service life. Placing part of the cooling component on the drip tray allows it to directly contact the condensate generated during the operation of the air conditioner. Condensate, a naturally occurring byproduct, is typically cooler than ambient temperature. Utilizing this characteristic, condensate can be used as a cooling source for the coolant, achieving efficient resource utilization, reducing reliance on additional cooling resources, and saving energy. The cooling circuit design allows the coolant to circulate within a closed system, preventing coolant loss and the entry of external impurities, extending the cooling system's lifespan, improving heat dissipation efficiency, and preventing potential damage to other internal components of the air conditioner from the coolant. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A top view of an embodiment of the heat dissipation system according to the present invention is shown;

[0019] Figure 2 A cross-sectional view of an embodiment of the heat dissipation system according to the present invention is shown;

[0020] Figure 3 A first-view structural schematic diagram of the heat dissipation system according to the present invention is shown;

[0021] Figure 4 A schematic diagram of the heat dissipation system according to the present invention is shown from a second perspective.

[0022] Figure 5 A schematic diagram of the structure of the first cooling component in the heat dissipation system according to the present invention is shown;

[0023] Figure 6A schematic diagram of the liquid tank structure in the heat dissipation system according to the present invention is shown;

[0024] Figure 7 An assembly schematic diagram of the second pipe component in the heat dissipation system according to the present invention is shown;

[0025] Figure 8 A schematic diagram of the structure of an air conditioner according to the present invention is shown.

[0026] The above figures include the following reference numerals:

[0027] 100. Housing; 110. Electrical components; 111. Mainboard; 120. Drain tray; 130. Water filling tray; 140. Outdoor fan; 150. Indoor fan;

[0028] 200, Radiator; 210, Refrigerant Flow Circuit; 300, Cooling Assembly; 310, Cooling Circuit; 311, Liquid Inlet; 312, Liquid Outlet; 313, First Cooling Section; 320, First Cooling Component; 321, First Cooling Body; 322, First Connecting Pipe; 323, First Heat Dissipation Fins; 330, Liquid Tank; 340, Second Connecting Pipe; 331, Base Plate; 332, Flow Section; 3320, First Flow Gap; 3321, Second Flow Gap; 333, Flow Channel; 334. Cover; 350. Second cooling component; 351. Second heat dissipation fins; 335. First end face; 352. Third heat dissipation fins; 336. Second end face; 314. Second cooling section; 360. Third cooling component; 361. Support frame; 362. First confluence channel; 363. First pipe fitting; 364. Second confluence channel; 370. Second pipe fitting; 380. Third pipe fitting; 390. Fourth pipe fitting; 337. Water level sensor; 338. Fifth pipe fitting; 339. Drain port. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] As mentioned in the background section, under high temperature or high load conditions, the temperature of the mainboard in the electrical box may exceed the limit, triggering overload protection. Most existing air conditioner electrical box cooling mechanisms employ air cooling, where the outdoor axial fan blades rotate to drive outdoor air through the heat sink to achieve a cooling effect. Alternatively, they use condensate cooling, where a water pump draws condensate out to cool the mainboard. However, these methods have several problems. For example, when a window unit is started for the first time or after a long period of inactivity, the lack of water inside the machine can cause the mainboard to fail to cool for a period of time, leading to shutdown. Furthermore, unclean condensate can allow particles to enter the cooling system, causing damage to the water pump or corrosion of the pipes, resulting in poor heat dissipation for the electrical components. Therefore, to address the aforementioned technical problems, the heat dissipation system provided in this application includes a cooling component 300, within which a cooling circuit 310 is provided. At least a portion of the cooling component 300 is mounted on a water collection tray 120, which is located below the evaporator and is used to collect condensate water left on the surface of the evaporator. The condensate water is used to cool the cooling component 300, thereby cooling the high-temperature coolant flowing out of the refrigerant circulation circuit 210. After cooling, the coolant in the cooling circuit 310 flows back into the refrigerant circulation circuit 210 to continue cooling the electrical components 110, thus forming a cooling circulation path between the refrigerant circulation circuit 210 and the cooling circuit 310. The coolant in the refrigerant circulation circuit 210 absorbs heat from the motherboard 111 and its temperature rises. It then exchanges heat with the condensate water in the cooling circuit 310, and the condensate water cools the coolant, thereby maintaining a good heat dissipation effect on the motherboard 111.

[0031] Please refer to Figures 1 to 7 This application also provides a heat dissipation system disposed within the casing 100 of an air conditioner for dissipating heat from electrical components 110. A drip tray 120 is disposed within the casing 100 to collect condensate. The heat dissipation system includes: a radiator 200, which is attached to the electrical components 110 and has a refrigerant flow circuit 210 within it; and a cooling assembly 300 disposed within the casing 100, which includes a cooling circuit 310 with an inlet 311 and an outlet 312. The two ends of the refrigerant flow circuit 210 are connected to the inlet 311 and outlet 312 respectively, so that the coolant in the refrigerant flow circuit 210 flows through the cooling circuit 310 and then returns to the refrigerant flow circuit 210. At least a portion of the cooling assembly 300 is located on the drip tray 120 to contact the condensate and cool the coolant in the cooling circuit 310.

[0032] According to the heat dissipation system provided in this application, it is installed inside the casing 100 of the air conditioner for dissipating heat from the electrical components 110. The heat dissipation system includes a radiator 200 and a cooling assembly 300. The radiator 200 is attached to the electrical components 110 and has a refrigerant flow circuit 210 inside it. The cooling assembly 300 is installed inside the casing 100 and includes a cooling circuit 310. The cooling circuit 310 includes an inlet 311 and an outlet 312. The two ends of the refrigerant flow circuit 210 are connected to the inlet 311 and the outlet 312, respectively, so that the coolant in the refrigerant flow circuit 210 flows through the cooling circuit 310 and then flows back into the refrigerant flow circuit 210. At least a portion of the cooling assembly 300 is located on a drip tray 120 to contact the condensate and cool the coolant in the cooling circuit 310. By incorporating a refrigerant circulation loop 210 within the radiator 200, the coolant can circulate and directly contact the electrical components 110, significantly improving heat dissipation efficiency. The high thermal conductivity of the coolant ensures that heat is rapidly transferred from the electrical components to the cooling system, effectively preventing overheating and extending the lifespan of the electrical components. Part of the cooling component 300 is placed on the drip tray 120, allowing it to directly contact the condensate generated during air conditioner operation. Condensate, a naturally occurring byproduct, is typically cooler than ambient temperature. Utilizing this characteristic, condensate serves as a cooling source for the coolant, achieving efficient resource utilization, reducing reliance on additional cooling resources, and saving energy. The design of the cooling loop 310 allows the coolant to circulate within a closed system, preventing coolant loss and the entry of external impurities, extending the lifespan of the cooling system, improving heat dissipation efficiency, and preventing potential damage to other internal components of the air conditioner from the coolant.

[0033] In this application, the cooling component can operate independently. Even when other parts of the air conditioner are not working, the cooling system can still operate using an external power source or backup energy, protecting electrical components from high-temperature damage and improving the system's reliability and safety. The combined design of the cooling component and the drip tray not only saves internal space in the air conditioner but also simplifies the layout of the cooling system, making the entire heat dissipation system more compact and improving the air conditioner's heat dissipation efficiency and energy utilization.

[0034] Specifically, such as Figure 5As shown, the cooling circuit 310 includes a first cooling section 313, and the cooling assembly 300 includes a first cooling component 320 disposed on the water receiving pan 120. The first cooling component 320 is in contact with condensate. The first cooling section 313 is disposed within the first cooling component 320, and the refrigerant flow circuit 210 is connected to the first cooling section 313. The first cooling section 313 is a strip structure or extends along a curved trajectory. Designing the first cooling section 313 as a strip structure or extending along a curved trajectory can significantly increase the contact area with condensate, improve heat exchange efficiency, and thus more effectively reduce the temperature inside the electrical box. By setting the first cooling component 320 on the water receiving pan 120 and allowing it to directly contact the condensate, the system can make full use of the condensate naturally generated during air conditioning operation, avoiding dependence on additional coolant, reducing costs and maintenance complexity. The enclosed design of the first cooling section 313 and the cooling assembly 300 ensures the cleanliness and stable operation of the cooling system, prevents external impurities from entering the system, and avoids the risk of water pump damage or pipe corrosion. Using condensate cooling instead of traditional air cooling or refrigerant cooling can reduce the energy consumption of air conditioning systems, especially in hot weather, where this advantage is more pronounced.

[0035] In specific implementation, the first cooling component 320 includes: a first cooling body 321, disposed on the water receiving pan 120, at least a portion of the first cooling body 321 being in contact with condensate; a first cooling section 313 disposed within the first cooling body 321; a first connecting pipe head 322 disposed on the first cooling body 321; and a refrigerant flow circuit 210 connected to the first cooling section 313 via the first connecting pipe head 322; and multiple first heat dissipation fins 323 disposed on the first cooling body 321, extending from the first cooling body 321 in a direction away from the water receiving pan 120, with the multiple first heat dissipation fins 323 spaced apart. By setting the first cooling body 321 in direct contact with the condensate, the lower temperature of the condensate is used to pre-cool the cooling medium (such as refrigerant), thereby providing an effective cooling effect at the start of the cooling cycle. This design is more efficient than traditional air cooling or direct refrigerant cooling methods because the temperature of the condensate is usually much lower than the ambient temperature, allowing it to absorb heat more quickly. The connection between the first cooling unit 321 and the refrigerant flow circuit 210 is achieved through the first connecting pipe 322. This design ensures the cleanliness of the cooling system's interior, preventing impurities in the condensate from directly entering the refrigerant system, thus reducing maintenance costs and the risk of system damage. The arrangement of the first heat dissipation fins 323 increases the contact area with the condensate, improving heat exchange efficiency. The spacing of multiple first heat dissipation fins 323 further optimizes the heat conduction path, ensuring that the refrigerant dissipates heat evenly as it passes through the first cooling section 313, improving the cooling effect. During the initial startup of the air conditioner, due to the lack of sufficient cooling medium, components on the mainboard are prone to overheating. The first cooling component, by pre-cooling the cooling medium, can provide cooling during the initial startup of the system, preventing heat accumulation and ensuring stable equipment operation.

[0036] The air conditioner also includes a condensate tray 130 for collecting condensate. The cooling assembly 300 further includes a liquid tank 330, which is mounted on the condensate tray 130 to contact the condensate within it and stores coolant. A second connecting pipe 340 is mounted on the liquid tank 330, through which the refrigerant flow circuit 210 is connected to the liquid tank 330. Coolant in the refrigerant flow circuit 210 flows into the liquid tank 330 through the second connecting pipe 340 and then flows back into the refrigerant flow circuit 210. By using the condensate tray 130 to collect condensate and mounting the liquid tank 330 on it, the liquid tank can directly contact and utilize the condensate for heat dissipation. This design fully utilizes the condensate generated during air conditioner operation as a heat dissipation resource, avoiding waste and reducing system temperature while improving heat dissipation efficiency. The coolant circulates between the refrigerant flow loop 210 and the liquid tank 330 through the second connecting pipe 340. After absorbing the low temperature of condensate in the liquid tank, the coolant flows back into the refrigerant flow loop to cool the electronic components again, forming a highly efficient cooling cycle system. This recycling method further improves the utilization efficiency and heat dissipation capacity of the coolant.

[0037] The liquid tank 330 is also equipped with a drain port 339, which is connected to the refrigerant circulation circuit 210 through a third pipe fitting 380.

[0038] like Figure 6 As shown, the coolant tank 330 includes: a base plate 331 disposed on the water-spraying pan 130; a flow-through portion 332 provided on the base plate 331, at least a portion of which protrudes towards the center of the coolant tank 330, so that the condensate in the water-spraying pan 130 cools the coolant in the coolant tank 330 when it flows through the flow-through portion 332; wherein, the flow-through portion 332 includes multiple flow channels 333, which are spaced apart. By providing the flow-through portion 332 on the base plate 331, and with at least a portion of the flow-through portion 332 protruding towards the center of the coolant tank 330, one or more flow channels 333 are formed. These flow channels 333 allow the condensate to more fully contact and surround the coolant in the coolant tank when it flows through, thereby increasing the heat exchange area and improving the cooling efficiency of the coolant. The low temperature characteristics of the condensate can rapidly reduce the temperature of the coolant, ensuring that the coolant maintains a low temperature during circulation, thereby improving the efficiency of the entire heat dissipation system. The design of multiple flow channels 333 optimizes the path of condensate as it flows through the liquid tank, enabling the condensate to be evenly distributed and flowed, avoiding local overheating, ensuring a uniform decrease in coolant temperature, and improving the stability of cooling effect.

[0039] Specifically, the flow section 332 also includes a first flow gap 3320 and a second flow gap 3321. The flow channel 333 is located between the first flow gap 3320 and the second flow gap 3321. The cross-sectional area of ​​the flow section of the first flow gap 3320 and the cross-sectional area of ​​the flow section of the second flow gap 3321 are smaller than the cross-sectional area of ​​the flow section of the flow channel 333, which increases the contact area between the base plate 331 and the water-spraying pan 130 and ensures the stability of the base plate 331. Preferably, the cross-sectional area of ​​the flow section of the second flow gap 3321 is larger than the cross-sectional area of ​​the flow section of the first flow gap 3320. The second flow gap 3321 is located above the first flow gap 3320. The condensate in the water-spraying pan 130 can flow through the first flow gap 3320, the flow channel 333 and the second flow gap 3321 at the same time, which increases the heat exchange area and improves the cooling efficiency of the coolant in the liquid tank 330.

[0040] Furthermore, the liquid tank 330 also includes a tank cover 334, and the cooling assembly 300 further includes: a second cooling component 350, which is disposed on the tank cover 334. The second cooling component 350 includes: a second heat dissipation fin 351, which is disposed on the first end face 335 of the tank cover 334, with the first end face 335 facing the inside of the liquid tank 330, and the second heat dissipation fin 351 extends from the first end face 335 toward the inside of the liquid tank 330 and is immersed in the coolant in the liquid tank 330; and a third heat dissipation fin 352, which is disposed on the second end face 336 of the tank cover 334, with the second end face 336 facing the outside of the liquid tank 330, and the third heat dissipation fin 352 extends from the second end face 336 toward the outside of the liquid tank 330. By providing a second heat dissipation fin 351 on the first end face 335 of the tank cover 334, the fins can be directly immersed in the coolant within the tank. This design increases the contact area between the coolant and the fins, improving heat exchange efficiency. Simultaneously, a third heat dissipation fin 352 is provided on the second end face 336 of the tank cover, extending outwards towards the tank. This allows for heat exchange with the external environment, further enhancing heat dissipation efficiency. The simultaneous provision of heat dissipation fins facing both the inner and outer sides of the tank cover 334 not only optimizes the internal structure of the tank and makes full use of limited space but also reduces the use of additional components, simplifying system design. The combined use of the second and third heat dissipation fins 351 ensures a more uniform temperature distribution of the coolant within the tank, preventing localized overheating.

[0041] In this application, as Figure 3As shown, the air conditioner also includes an outdoor fan 140, a cooling circuit 310 including a second cooling section 314, and a cooling assembly 300 including a third cooling component 360 disposed to the side of the outdoor fan 140. The second cooling section 314 is disposed within the third cooling component 360, and the airflow generated by the outdoor fan 140 cools the coolant within the second cooling section 314. By placing the third cooling component 360 to the side of the outdoor fan 140 and utilizing the airflow generated by the fan to cool the coolant within the second cooling section 314, the heat dissipation capacity of the heat dissipation system is significantly enhanced. During operation, the heat generated by the electrical components 110 continuously increases, causing the coolant temperature to rise. The second cooling section 314 allows for continuous heat dissipation using the airflow from the outdoor fan, ensuring that the coolant temperature remains within a safe range and preventing performance degradation or damage to the electrical components due to overheating of the coolant. Integrating the third cooling component 360 to the side of the outdoor fan not only makes full use of existing space but also avoids the installation of additional heat dissipation equipment. The outdoor fan already consumes some energy during air conditioner operation. Placing the third cooling component on the side of the fan allows for full utilization of this already consumed energy, eliminating the need for additional energy input to drive heat dissipation. This improves energy efficiency and reduces the overall energy consumption of the air conditioner. Direct cooling via the outdoor fan's airflow reduces reliance on active cooling equipment (such as water pumps), lowering system maintenance complexity and costs. Simultaneously, reduced direct exposure of the coolant lowers the risk of impurities entering the cooling system.

[0042] Furthermore, the third cooling component 360 includes: a support frame 361, within which a first confluence channel 362 is provided, the first confluence channel 362 being connected to the liquid outlet of the refrigerant flow circuit 210; and a first pipe 363 disposed on the support frame 361, at least a portion of the cavity of the first pipe 363 being a second cooling section 314; there are multiple first pipes 363, spaced apart on the support frame 361, each first pipe 363 being connected to the first confluence channel 362, and the coolant in the refrigerant flow circuit 210 being distributed to each first pipe 363 through the first confluence channel 362. By providing multiple first pipes 363, and these first pipes being spaced apart on the support frame 361, uniform distribution of the coolant during the flow process is ensured. This design enables uniform temperature distribution of the coolant, avoids local overheating, and improves the overall efficiency and uniformity of the heat dissipation system. The cavity of the first pipe 363 is at least partially designed as a second cooling section 314, directly contacting the coolant. This maximizes the heat exchange area, thereby dissipating heat from the coolant more efficiently and improving heat dissipation. Each first pipe 363 is connected to a first manifold 362. This design allows the system to adjust the coolant flow rate and velocity as needed, enhancing the system's flexibility and adaptability. The support frame 361 maintains a certain distance between the first pipes 363 and the electrical components, reducing the direct impact of heat sources on the cooling system and avoiding the risk of overheating damage. Because each first pipe 363 can dissipate heat evenly, it reduces the concentration of thermal stress, helping to extend the service life of the cooling system and also lowering the cost of maintaining and replacing it.

[0043] A second manifold channel 364 is also provided on the support frame 361. The liquid outlet of each first pipe 363 is connected to the second manifold channel 364, which is connected to the liquid inlet of the refrigerant circulation circuit 210. The coolant in each first pipe 363 flows back into the refrigerant circulation circuit 210 through the second manifold channel 364. The second manifold channel 364 unifies the liquid outlets of each first pipe 363, ensuring that the coolant can flow back into the refrigerant circulation circuit 210 efficiently and evenly after passing through the heat dissipation process of the first cooling component, forming a complete coolant circulation system, which improves the efficiency of coolant use and the uniformity of heat dissipation. Through the distribution of multiple first pipes 363 and their connection with the second manifold channel 364, the contact area and time between the coolant and the first cooling component 320 can be increased, thereby improving the heat exchange efficiency and enabling the heat dissipation system to more effectively reduce the temperature of the electrical box components when encountering high-temperature environments.

[0044] The air conditioner also includes an indoor fan 150 and an outdoor fan 140. The cooling circuit 310 includes a first cooling section 313 and a second cooling section 314. The cooling assembly 300 includes: a first cooling component 320, which is disposed on a water receiving pan 120, and the first cooling section 313 is disposed within the first cooling component 320; a second pipe 370, one end of which is connected to the refrigerant flow circuit 210, and the other end of which passes through the volute of the indoor fan 150 and is connected to the first cooling section 313; a liquid tank 330, which is used to store coolant, and the liquid outlet of the first cooling section 313 is connected to the liquid tank 330; and a third cooling component 360, which is disposed to the side of the outdoor fan 140, and the second cooling section 314 is disposed within the third cooling component 360, the liquid outlet of the liquid tank 330 is connected to the second cooling section 314, and the liquid outlet of the second cooling section 314 is connected to the refrigerant flow circuit 210. By dividing the cooling circuit 310 into a first cooling section 313 and a second cooling section 314, the system utilizes condensate to initially cool the coolant in the first cooling component 320, and then delivers the coolant to the indoor fan casing through the second pipe 370 for further heat dissipation via airflow. This design ensures that the coolant receives double-layer cooling during circulation, improving heat dissipation efficiency. The second cooling section 314, combined with the third cooling component 360 of the outdoor fan 140, utilizes outdoor air for heat dissipation, while the powerful airflow of the outdoor fan accelerates heat exchange and lowers the coolant temperature. This design not only effectively copes with the high-temperature environment during air conditioning operation but also provides stable cooling when the air conditioner is not running for extended periods, preventing overheating of electrical components. The storage and circulation of coolant in the coolant tank 330 ensures the airtightness of the cooling system, preventing coolant loss and the entry of external impurities, ensuring long-term stable operation of the system, and reducing maintenance complexity and costs. By rationally arranging the various parts of the cooling components inside the air conditioner, such as setting the first cooling component 320 on the water receiving tray 120 and the third cooling component 360 on the side of the outdoor fan 140, not only is space saved, but the integration of the heat dissipation system with other air conditioning components is also more compact and efficient.

[0045] Specifically, the first cooling component 320 is connected to the liquid tank 330 via a fourth pipe 390, the drain port 339 of the liquid tank 330 is connected to the second cooling section 314 via a fifth pipe 338, and the second cooling section 314 is connected to the refrigerant circulation loop 210 via a third pipe 380. Thus, a coolant circulation loop is formed between the refrigerant circulation loop 210, the second pipe 370, the first cooling section 313, the fourth pipe 390, the liquid tank 330, the fifth pipe 338, the second cooling section 314, and the third pipe 380. This circulation loop ensures efficient coolant flow between various cooling points, improving heat exchange efficiency and overall heat dissipation performance. A closed-loop circulation system is formed by connecting the refrigerant flow loop 210 to the first cooling section 313 via the second fitting 370 and the fifth fitting 338 between the liquid tank 330 and the second cooling section 314. This design ensures a stable supply and circulation of coolant, guaranteeing cooling of electrical components even under extreme conditions and preventing overheating protection triggering. Precise fitting connections create a sealed circulation loop, effectively preventing coolant leakage, ensuring system safety and stability, reducing the need for coolant replenishment and replacement, and lowering maintenance costs. The rational arrangement of the first cooling component, liquid tank, and third cooling component, along with the connection using the fourth fitting 390 and the fifth fitting 338, optimizes the internal space layout of the air conditioner, contributing to its miniaturization and weight reduction, and improving the overall design level. Utilizing the condensate generated during air conditioner operation as coolant replenishment, combined with the airflow cooling from the indoor and outdoor fans, reduces reliance on additional energy, lowers system operating costs, and meets energy conservation and emission reduction requirements. By improving cooling efficiency, the stable operation of electrical components is ensured, equipment failures caused by overheating are reduced, and the reliability of the air conditioner is improved.

[0046] The coolant tank 330 ensures that the coolant in the cooling system is always overflowing, preventing air from entering the pipes due to insufficient coolant. Air in the pipes causes noise and reduces cooling performance. The tank also facilitates the addition of coolant. A water level sensor 337 is installed inside the tank 330 to facilitate monitoring of the coolant level.

[0047] like Figure 8 As shown, this application also provides an air conditioner, including a housing 100, an electrical component 110, and a heat dissipation system. The electrical component 110 and the heat dissipation system are respectively disposed in the housing 100. The heat dissipation system is connected to the electrical component 110 and is used to dissipate heat from the electrical component 110. The heat dissipation system is the heat dissipation system of the above embodiment.

[0048] In this application, the passive air cooling of the components on the motherboard 111 is replaced with active water cooling, improving heat dissipation capacity. It fully utilizes the low-temperature condensate, reducing the size of the heat dissipation end of the water cooling system. Simultaneously, the enclosed water cooling system prevents impurities in the condensate from entering the cooling system, corroding it, or clogging the pipes. Compared to a refrigerant cooling system, this system can start even when the compressor is not operating, relying on the outdoor fan blades for system cooling. Furthermore, it improves the utilization rate of condensate, with simultaneous heat dissipation from the water tank and piping.

[0049] The heat dissipation system described in this application has a stronger heat dissipation capacity than traditional air cooling; it ensures stable operation of the heat dissipation system, preventing pipe corrosion and blockage; and it avoids operation without coolant. It makes full use of condensate, dissipating heat simultaneously in the main heat dissipation area, as well as in the water tank and pipes.

[0050] When the window unit is running, the radiator 200 in the electrical assembly 110 starts operating. The radiator includes a water pump and a heat dissipation area. The heat dissipation area contacts the main board 111, and the water pump drives the coolant in the heat dissipation pipes. The coolant flows from the outlet of the radiator 200, passes through the front partition and the volute, and reaches the indoor side. A first cooling component 320 is installed on the outlet channel of the drip tray 120. The first cooling component 320 is made of metal, with one part being a flat, elongated coolant channel and the other part being first heat dissipation fins 323. When the air conditioner runs for a long time, the evaporator component produces a large amount of low-temperature condensate. The condensate enters the drip tray 120. After accumulation, the condensate flows out from the outlet channel of the drip tray 120. The first cooling component, placed on the drip tray 120, is surrounded by the low-temperature condensate. The coolant flowing out of the radiator is a high-temperature liquid, which undergoes initial heat dissipation upon encountering the low-temperature condensate. The first heat dissipation fin 323 on the first cooling component can increase the heat dissipation area. In this scheme, the shape of the first heat dissipation fin 323 is vertical, or it can be designed as an S-shaped or other shape to further increase the contact area.

[0051] After exiting the first cooling component 320, the coolant returns to the coolant tank 330 located on the chassis. The coolant tank 330 has a second cooling component 350. Condensate flowing from the drip tray 120 enters the chassis and then flows into the water spray tray 130 of the outdoor fan blades. A flow passage 332 is provided at the bottom of the coolant tank to ensure that the condensate cools the water in the tank. The tank cover 334 has fins, divided into a third heat dissipation fin 352 and a second heat dissipation fin 351. The second heat dissipation fin 351 is inserted into the coolant in the tank. The third heat dissipation fin 352 is perpendicular to the chassis side fins, ensuring that when the outdoor fan blades are running, airflow passes between the third heat dissipation fins 352, reducing the temperature of the third heat dissipation fin 352. The second heat dissipation fin 351 and the third heat dissipation fin 352 are connected, thereby reducing the temperature of the second heat dissipation fin 351 and consequently lowering the temperature of the coolant in the tank.

[0052] The coolant flowing from the tank enters the third cooling component 360, which has multiple first pipes 363. When the outdoor fan is activated, the airflow passes through the third cooling component 360, further cooling the coolant. The cooled coolant then enters the radiator 200. Here, the cooled coolant comes into contact with the components on the motherboard, thus cooling the components.

[0053] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0054] According to the heat dissipation system provided in this application, it is installed inside the casing 100 of the air conditioner for dissipating heat from the electrical components 110. The heat dissipation system includes a radiator 200 and a cooling assembly 300. The radiator 200 is attached to the electrical components 110 and has a refrigerant flow circuit 210 inside it. The cooling assembly 300 is installed inside the casing 100 and includes a cooling circuit 310. The cooling circuit 310 includes an inlet 311 and an outlet 312. The two ends of the refrigerant flow circuit 210 are connected to the inlet 311 and the outlet 312, respectively, so that the coolant in the refrigerant flow circuit 210 flows through the cooling circuit 310 and then flows back into the refrigerant flow circuit 210. At least a portion of the cooling assembly 300 is located on a drip tray 120 to contact the condensate and cool the coolant in the cooling circuit 310. By incorporating a refrigerant circulation loop 210 within the radiator 200, the coolant can circulate and directly contact the electrical components 110, significantly improving heat dissipation efficiency. The high thermal conductivity of the coolant ensures that heat is rapidly transferred from the electrical components to the cooling system, effectively preventing overheating and extending the lifespan of the electrical components. Part of the cooling component 300 is placed on the drip tray 120, allowing it to directly contact the condensate generated during air conditioner operation. Condensate, a naturally occurring byproduct, is typically cooler than ambient temperature. Utilizing this characteristic, condensate serves as a cooling source for the coolant, achieving efficient resource utilization, reducing reliance on additional cooling resources, and saving energy. The design of the cooling loop 310 allows the coolant to circulate within a closed system, preventing coolant loss and the entry of external impurities, extending the lifespan of the cooling system, improving heat dissipation efficiency, and preventing potential damage to other internal components of the air conditioner from the coolant.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A heat dissipation system, disposed within the casing (100) of an air conditioner, for dissipating heat from electrical components (110), wherein a drip tray (120) is provided within the casing (100) for collecting condensate, characterized in that, The heat dissipation system includes: A radiator (200) is attached to the electrical component (110), and a refrigerant flow circuit (210) is provided inside the radiator (200). A cooling assembly (300) is disposed within the housing (100). The cooling assembly (300) includes a cooling circuit (310). The cooling circuit (310) includes an inlet (311) and an outlet (312). The two ends of the refrigerant circulation circuit (210) are respectively connected to the inlet (311) and the outlet (312) so that the coolant in the refrigerant circulation circuit (210) flows through the cooling circuit (310) and then flows back into the refrigerant circulation circuit (210). At least a portion of the cooling assembly (300) is located on the water receiving tray (120) to contact the condensate and cool the coolant in the cooling circuit (310); The air conditioner also includes a water collection tray (130) for collecting condensate; the cooling assembly (300) also includes: A liquid tank (330) is disposed on the water spraying pan (130) to contact the condensate in the water spraying pan (130), and the liquid tank (330) is used to store coolant. The second connecting pipe (340) is provided on the liquid tank (330). The refrigerant flow circuit (210) is connected to the liquid tank (330) through the second connecting pipe (340). The coolant in the refrigerant flow circuit (210) flows into the liquid tank (330) through the second connecting pipe (340) and then flows back into the refrigerant flow circuit (210). The condensate flowing out of the water receiving tray (120) will enter the water dispensing tray (130).

2. The heat dissipation system according to claim 1, characterized in that, The cooling circuit (310) includes a first cooling section (313), and the cooling assembly (300) includes: A first cooling component (320) is disposed on the water receiving tray (120). The first cooling component (320) is in contact with the condensate. A first cooling section (313) is disposed inside the first cooling component (320). The refrigerant circulation loop (210) is connected to the first cooling section (313). The first cooling section (313) is a strip structure, or the first cooling section (313) extends along a curved trajectory.

3. The heat dissipation system according to claim 2, characterized in that, The first cooling component (320) includes: A first cooling body (321) is disposed on the water receiving pan (120). At least a portion of the first cooling body (321) is in contact with the condensate. A first cooling section (313) is disposed inside the first cooling body (321). A first connecting pipe head (322) is disposed on the first cooling body (321). The refrigerant flow circuit (210) is connected to the first cooling section (313) through the first connecting pipe head (322). The first heat dissipation fin (323) is disposed on the first cooling body (321). The first heat dissipation fin (323) extends from the first cooling body (321) toward a direction away from the water receiving tray (120). There are multiple first heat dissipation fins (323), and the multiple first heat dissipation fins (323) are spaced apart.

4. The heat dissipation system according to claim 1, characterized in that, The liquid tank (330) includes: A base plate (331) is provided on the water-spraying pan (130), and a flow passage (332) is provided on the base plate (331). At least a portion of the flow passage (332) protrudes toward the center of the liquid tank (330) so that the condensate in the water-spraying pan (130) cools the coolant in the liquid tank (330) when it flows through the flow passage (332). The flow section (332) includes multiple flow channels (333), which are spaced apart.

5. The heat dissipation system according to claim 1, characterized in that, The liquid tank (330) further includes a tank cover (334), and the cooling assembly (300) further includes a second cooling component (350), the second cooling component (350) being disposed on the tank cover (334), the second cooling component (350) comprising: The second heat dissipation fin (351) is disposed on the first end face (335) of the cover (334), the first end face (335) faces the inside of the liquid tank (330), and the second heat dissipation fin (351) extends from the first end face (335) toward the inside of the liquid tank (330) and is immersed in the coolant in the liquid tank (330); The third heat dissipation fin (352) is disposed on the second end face (336) of the cover (334), the second end face (336) facing the outside of the liquid tank (330), and the third heat dissipation fin (352) extends from the second end face (336) toward the outside of the liquid tank (330).

6. The heat dissipation system according to claim 1, characterized in that, The air conditioner also includes an outdoor fan (140), the cooling circuit (310) includes a second cooling section (314), and the cooling assembly (300) further includes: The third cooling component (360) is located on the side of the outdoor fan (140), and the second cooling section (314) is located inside the third cooling component (360). The airflow generated by the outdoor fan (140) cools the coolant in the second cooling section (314).

7. The heat dissipation system according to claim 6, characterized in that, The third cooling component (360) includes: A support frame (361) is provided with a first confluence channel (362) inside the support frame (361), and the first confluence channel (362) is connected to the liquid outlet end of the refrigerant flow circuit (210); A first pipe fitting (363) is disposed on the support frame (361), and at least a portion of the cavity of the first pipe fitting (363) is the second cooling section (314). There are multiple first pipe fittings (363), and multiple first pipe fittings (363) are spaced apart on the support frame (361). Each first pipe fitting (363) is connected to the first confluence channel (362). The coolant in the refrigerant circulation circuit (210) is diverted to each first pipe fitting (363) through the first confluence channel (362).

8. The heat dissipation system according to claim 7, characterized in that, The support frame (361) is also provided with a second confluence channel (364), the liquid outlet of each of the first pipes (363) is connected to the second confluence channel (364), the second confluence channel (364) is connected to the liquid inlet of the refrigerant circulation circuit (210), and the coolant in each of the first pipes (363) flows back to the refrigerant circulation circuit (210) through the second confluence channel (364).

9. The heat dissipation system according to claim 1, characterized in that, The air conditioner also includes an indoor fan (150) and an outdoor fan (140), the cooling circuit (310) includes a first cooling section (313) and a second cooling section (314), and the cooling assembly (300) includes: A first cooling component (320) is disposed on the water receiving tray (120), and a first cooling section (313) is disposed within the first cooling component (320). The second fitting (370) has one end connected to the refrigerant flow circuit (210) and the other end connected to the first cooling section (313) after passing through the volute of the indoor fan (150). A liquid tank (330) is used to store coolant, and the outlet end of the first cooling section (313) is connected to the liquid tank (330); The third cooling component (360) is located on the side of the outdoor fan (140), the second cooling section (314) is located inside the third cooling component (360), the liquid outlet of the liquid tank (330) is connected to the second cooling section (314), and the liquid outlet of the second cooling section (314) is connected to the refrigerant flow circuit (210).

10. An air conditioner, comprising a housing (100), an electrical assembly (110), and a heat dissipation system, wherein the electrical assembly (110) and the heat dissipation system are respectively disposed within the housing (100), and the heat dissipation system is connected to the electrical assembly (110) for dissipating heat from the electrical assembly (110), characterized in that, The heat dissipation system is the heat dissipation system according to any one of claims 1 to 9.

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