Compressor assembly and air conditioning system

Abstract

The application provides a compressor assembly and an air conditioning system. The compressor assembly comprises: a compressor, which has a compressor shell; a shell, which is arranged on the compressor shell and cooperates with the compressor shell to form an element cavity, condensate water in the element cavity flowing through the compressor shell; components, which are arranged in the element cavity; and a heat dissipation structure, which is arranged in the element cavity. The compressor assembly and the air conditioning system provided by the application can dissipate heat from the compressor through the part of the compressor shell where the element cavity is located, thereby ensuring the cooling and heat dissipation efficiency of the compressor. The condensate water in the element cavity can flow along the shell of the compressor, and the cold energy of the condensate water can also cool the compressor, thereby effectively ensuring the working reliability of the compressor assembly and the air conditioning system.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to a compressor assembly and an air conditioning system. Background Technology

[0002] Centrifugal chillers are widely used in commercial air conditioning systems. The centrifugal refrigeration compressor is the core component of a centrifugal chiller, and it is generally driven by a frequency converter. Traditionally, centrifugal refrigeration compressors and frequency converters are independent structures, both of which are relatively large. This largely results in the overall size of the centrifugal chiller unit being quite large, requiring a significant amount of floor space.

[0003] Since the beginning of the 21st century, industrial miniaturization and integration have become a development trend. With breakthroughs in inverter component technology, the size of these components has become increasingly miniaturized, leading to the emergence of integrated inverter compressors. Integrated inverter compressors highly integrate the inverter and compressor into one unit, significantly reducing the size of the original independent compressor and inverter. This, in turn, significantly reduces the overall size of centrifugal chiller units, laying a foundation for the miniaturization of chiller units.

[0004] However, while integrated compressors with frequency converters offer many advantages, the heat dissipation of both the compressor and the frequency converter presents a significant challenge. Both the compressor and the frequency converter generate heat during operation and require independent cooling structures. Integrating the frequency converter into the compressor causes it to occupy part of the compressor's surface area, affecting its heat dissipation. Furthermore, the extremely compact arrangement of the components in both the frequency converter and the compressor further complicates the layout of their cooling structures, ultimately leading to unreliable heat dissipation in the integrated compressor and frequency converter. Summary of the Invention

[0005] To address the technical problem of unreliable cooling of components such as frequency converters integrated into compressors in existing technologies, a compressor assembly and air conditioning system are provided that enables the heat dissipation structure to simultaneously dissipate heat from both the components and the compressor housing containing the component cavity, and allows condensate from the component cavity to flow through the compressor housing for further heat dissipation, thus ensuring reliable heat dissipation.

[0006] A compressor assembly, characterized in that it comprises:

[0007] The compressor has a compressor housing;

[0008] The outer casing is disposed on the compressor housing, and the outer casing and the compressor housing together form a component cavity, through which the condensate in the component cavity flows.

[0009] Components, wherein the components are disposed within the component cavity;

[0010] A heat dissipation structure is disposed inside the component cavity.

[0011] The component cavity includes a frequency converter cavity and a capacitor cavity that are interconnected. The frequency converter cavity is located at the top of the compressor housing, and the capacitor cavity is located on one side of the compressor housing. The components include frequency converter elements and capacitor elements. The frequency converter elements are disposed in the frequency converter cavity, and the capacitor elements are disposed in the capacitor cavity. The heat dissipation structure is disposed in the frequency converter cavity.

[0012] The plane containing the bottom surface of the inverter cavity has an angle with the horizontal plane, and the lowest point of the bottom surface of the inverter cavity is connected to the capacitor cavity.

[0013] The compressor also includes a motor, the motor housing of which constitutes part of the compressor housing, the outer shell and the motor housing together form the capacitor cavity, and the condensate of the inverter cavity flows through the motor housing.

[0014] The compressor assembly also includes a motor wiring assembly, which is disposed inside the inverter cavity and electrically connected to the motor. The components are disposed on one side of the motor wiring assembly, and the heat dissipation structure is disposed on the motor wiring assembly.

[0015] The heat dissipation structure includes a semiconductor cooling mechanism, which has a hot end and a cold end. The hot end is disposed on the motor wiring assembly, and the cold end of the semiconductor cooling mechanism faces the interior of the inverter cavity.

[0016] The heat dissipation structure also includes a cooling fan. An air inlet is provided on the outer casing, and the cooling fan is located at the air inlet. The air outlet of the cooling fan is directed towards the cold end of the semiconductor cooling mechanism.

[0017] The heat dissipation structure further includes at least one circulating fan, and a circulating heat exchange channel is formed between the inverter element and the housing. The circulating fan is disposed in the circulating heat exchange channel, and the air outlet direction of at least one of the circulating fans is directed towards the inverter element.

[0018] The circulating heat exchange channel is annular in shape, and the circulating fan is located at the corner of the annulus.

[0019] The inverter element includes a first inverter assembly and a second inverter assembly, which are arranged side by side in the inverter cavity. The air outlet direction of the circulating fan located to the left of the first inverter assembly is towards the first inverter assembly, the air outlet direction of the circulating fan located to the right of the first inverter assembly is towards the second inverter assembly, the air outlet direction of the circulating fan located to the right of the second inverter assembly is towards the second inverter assembly, and the air outlet direction of the circulating fan located to the left of the second inverter assembly is towards the first inverter assembly.

[0020] The cold end is provided with heat exchange fins, and the exhaust direction of the cooling fan is directed towards the heat exchange fins.

[0021] Gas flow channels are formed between the heat exchange fins, and the airflow direction in the gas flow channels is the same as the airflow direction of the cooling fan.

[0022] The airflow direction of the gas channel is directed towards the frequency converter element.

[0023] The heat dissipation structure also includes a surface cooler, which is disposed inside the inverter cavity.

[0024] The heat dissipation structure also includes a surface cooler fan, which is located on one side of the surface cooler and the air outlet direction of the surface cooler fan is towards the inverter element.

[0025] The inverter element includes a first inverter assembly and a second inverter assembly, which are arranged side by side in the inverter cavity, and the surface cooler is disposed between the first inverter assembly and the second inverter assembly.

[0026] The bottom surface of the inverter cavity is recessed to form a water accumulation tank and a water discharge tank. One end of the water discharge tank is connected to the water accumulation tank, and the other end is connected to the capacitor cavity. The surface cooler is disposed in the water accumulation tank.

[0027] An air conditioning system includes the compressor assembly described above.

[0028] The compressor assembly and air conditioning system provided by this invention directly install an outer shell on the compressor housing, and the outer shell and a portion of the compressor housing together form a component cavity for mounting components. This allows components such as frequency converters to be directly mounted on the compressor housing, reducing the space occupied by the integrated compressor assembly. Moreover, the heat dissipation structure is located inside the component cavity, enabling heat dissipation from the compressor through the portion of the compressor housing where the component cavity is located, thereby ensuring the cooling efficiency of the compressor. The condensate in the component cavity can also flow along the compressor housing, and the cooling capacity of the condensate can also cool the compressor. Thus, by rationally arranging the positions of the outer shell, components, and heat dissipation structure, and fully utilizing the cooling capacity of the heat dissipation structure and the generated condensate, the heat dissipation efficiency of the compressor and components is ensured. This overcomes the technical problem of not being able to install cooling structures for the compressor and components in the prior art, effectively ensuring the reliable operation of the compressor assembly and air conditioning system. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the compressor assembly provided in an embodiment of the present invention;

[0030] Figure 2 A top view of a compressor assembly provided in an embodiment of the present invention;

[0031] Figure 3 This is a cross-sectional view of the inverter cavity and capacitor cavity provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the structure of a semiconductor cooling mechanism provided in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of the structure of the surface cooler and surface cooler fan provided in an embodiment of the present invention;

[0034] In the picture:

[0035] 1. Compressor housing; 2. Components; 3. Heat dissipation structure; 41. Inverter cavity; 42. Capacitor cavity; 31. Semiconductor refrigeration mechanism; 32. Cold end; 33. Heat exchange fins; 34. Cooling fan; 35. Circulating fan; 51. First inverter assembly; 52. Second inverter assembly; 6. Surface cooler; 7. Surface cooler fan; 36. Water collection tank; 37. Water discharge tank; 8. Motor wiring assembly; 38. Circulating heat exchange channel. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate for the embodiments of the invention described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] It should be noted that in the description of this invention, terms such as "upper," "lower," "left," "right," "inner," and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Integrated inverter compressors highly integrate the inverter and compressor into one unit, significantly reducing the size of the original independent compressor and inverter. This results in a substantial reduction in the overall size of the centrifugal chiller unit, laying the foundation for the miniaturization of chiller units. However, while integrated inverter compressors offer many advantages, the heat dissipation of the compressor and inverter becomes a major challenge. Both the compressor and inverter generate heat during operation and require independent cooling structures. Integrating the inverter into the compressor causes it to occupy part of the compressor's surface area, affecting its heat dissipation efficiency. Furthermore, the extremely compact arrangement of the inverter and compressor components further complicates the layout of their cooling structures, ultimately leading to unreliable heat dissipation in the integrated compressor and inverter. Current technologies typically only install finned heat dissipation structures on the side wall of the inverter away from the compressor to directly dissipate the heat generated by the inverter into the air. However, the heat from the inverter is not only transferred away from the compressor but also transferred towards the compressor, causing unreliable heat dissipation and seriously affecting the operational reliability of the compressor, inverter, and the air conditioning system. Therefore, this application provides a method such as Figures 1 to 5 The compressor assembly shown is characterized by comprising: a compressor having a compressor housing 1; an outer casing (not shown) disposed on the compressor housing 1, the outer casing and the compressor housing 1 together forming a component cavity, through which condensate flows; a component 2 disposed within the component cavity; and a heat dissipation structure 3 disposed within the component cavity. An outer shell is directly installed on the compressor housing 1, and the outer shell and part of the compressor housing 1 together form a component cavity for mounting components 2. This allows components 2, such as the frequency converter, to be directly mounted on the compressor housing 1, reducing the space occupied by the integrated compressor assembly. Moreover, the heat dissipation structure 3 is located inside the component cavity, which can dissipate heat from the compressor through the part of the compressor housing 1 where the component cavity is located, thereby ensuring the cooling efficiency of the compressor. The condensate in the component cavity can also flow along the compressor housing, and the cooling capacity of the condensate can also cool the compressor. Thus, by rationally arranging the positions of the outer shell, components 2, and heat dissipation structure 3, and making full use of the cooling capacity of the heat dissipation structure 3 and the cooling capacity of the generated condensate, the heat dissipation efficiency of the compressor and components 2 is ensured. This overcomes the technical problem in the prior art that it is impossible to set up a cooling structure for the compressor and a heat dissipation structure 3 for components 2, effectively ensuring the reliable operation of the compressor assembly and the air conditioning system.

[0042] When the compressor assembly is working, both the compressor and component 2 start to work and generate heat. At this time, the heat dissipation structure 3 starts to work, cooling the gas in the component cavity, and ultimately cooling the component 2 and the compressor housing 1 that constitutes the component cavity. As the heat dissipation structure 3 works, the water vapor in the gas gradually condenses to form condensate, and condensate is generated in the component cavity. Since the temperature of the condensate is low, and there is part of the compressor housing 1 in the component cavity, the condensate can flow along the compressor housing 1. This ensures that the condensate can be smoothly discharged from the component cavity without affecting the component 2, ensuring the reliability of the component 2. It can also use the cooling capacity of the condensate to carry away the heat generated by the compressor during operation, thereby cooling the compressor and improving the cooling efficiency of the compressor.

[0043] The capacitor, one of the required components 2 for the frequency converter, is relatively large and requires a separate chamber for its placement. Furthermore, the compressor housing 1 is generally cylindrical. Placing both the frequency converter and capacitor components at the top of the compressor housing 1 would increase the size of the integrated compressor assembly. To fully utilize space, the component chamber includes an interconnected frequency converter chamber 41 and capacitor chamber 42. The frequency converter chamber 41 is located at the top of the compressor housing 1, and the capacitor chamber 42 is located on one side of the compressor housing 1. The components 2 include a frequency converter component and a capacitor component. The frequency converter component is housed within the frequency converter chamber 41, and the capacitor component is housed within the capacitor chamber 42. The heat dissipation structure 3 is located within the frequency converter chamber 41. In this configuration, only the frequency converter component increases the height of the compressor housing 1, while the capacitor component, positioned on the side of the compressor housing 1, does not affect the height of the compressor assembly. This fully utilizes the cylindrical curved surface, thereby reducing the space occupied by the compressor assembly. Meanwhile, since the capacitor cavity 42 is located on the side of the compressor housing 1, while the inverter cavity 41 is located on top of the compressor housing 1, the inverter cavity 41 is higher than the capacitor cavity 42. The heat dissipation structure 3 is placed inside the inverter cavity 41, allowing the condensate generated therein to flow out of the inverter cavity 41 under gravity and adhere to the inner wall of the capacitor cavity 42. This avoids the condensate from affecting the inverter and capacitor components, ensuring reliable condensate drainage. Optionally, the outer casing includes a first shell and a second shell. The first shell is located above the compressor housing 1, and together with the compressor housing 1, it forms the inverter cavity 41. The second shell is located on one side of the compressor housing 1, and together with the compressor housing 1, it forms the capacitor cavity 42. The condensate flowing on the inner wall of the capacitor cavity 42 can flow on the compressor housing 1, thereby achieving heat dissipation and cooling of the compressor and ensuring reliable heat dissipation of the compressor components. The inverter and capacitor components are arranged vertically on the same plane (the bottom surface of the inverter cavity).

[0044] To ensure the smooth flow of condensate from the inverter cavity 41 into the capacitor cavity 42, the plane containing the bottom surface of the inverter cavity 41 is inclined at an angle to the horizontal plane, and the lowest point of the bottom surface of the inverter cavity 41 is connected to the capacitor cavity 42. The condensate generated in the inverter cavity 41 can flow smoothly into the capacitor cavity 42 under the influence of the inclination angle and gravity, thus ensuring reliable condensate drainage and reliable cooling of the compressor. The bottom surface of the inverter cavity 41 is part of the compressor housing 1, which is inclined relative to the horizontal plane. To avoid an excessively large inclination angle affecting the compressor's volume and the usable space of the capacitor cavity 42, this inclination angle ranges from 5° to 10°.

[0045] The compressor also includes a motor. When the compressor is working, the motor's rotation drives the compression components inside the compressor to compress the gas. The motor generates a large amount of heat during operation, making it one of the compressor's heat sources. To improve the motor's heat dissipation efficiency, the motor housing forms part of the compressor housing 1, allowing the motor to dissipate heat directly to the outside, thus achieving motor cooling. The compressor housing 1, where the motor housing is located, has a relatively neat structure. Therefore, when components such as the frequency converter 2 are integrated into the compressor, the outer casing and the motor housing together form the capacitor cavity 42. The condensate from the frequency converter cavity 41 flows through the motor housing. The condensate dissipates heat from the motor housing, ensuring reliable motor operation. To enable the motor to connect electrically to an external power source, the compressor assembly also includes a motor wiring assembly 8. The motor wiring assembly 8 is electrically connected to the motor, allowing the external power source to supply power to the motor. The motor wiring assembly 8 is located within the inverter cavity 41, and the component 2 is located on one side of the motor wiring assembly 8. This design cleverly incorporates structures such as the motor wiring assembly 8, which would otherwise be located outside the compressor when components like the inverter 2 are not integrated, within the inverter cavity 41, further reducing the space occupied by the compressor assembly. The motor wiring assembly 8 is a hollow housing and constitutes part of the motor's housing. The heat dissipation structure 3 is located on the motor wiring assembly 8. Condensate generated on the heat dissipation structure 3 can flow downwards along the motor wiring assembly 8 and into the capacitor cavity 42, ensuring that the location of the condensate does not affect the operational reliability of the inverter components.

[0046] In one embodiment, the heat dissipation structure 3 includes a semiconductor cooling mechanism 31, which has a hot end and a cold end 32. The hot end is disposed on the motor wiring assembly 8, and the cold end 32 of the semiconductor cooling mechanism 31 faces the interior of the inverter cavity 41. Since the motor wiring assembly 8 is a hollow shell, the heat generated by the hot end of the semiconductor cooling mechanism 31 will not affect the motor, while the cold end 32 of the semiconductor cooling mechanism 31 can cool and condense the gas inside the inverter cavity 41. This achieves reliable heat dissipation for the inverter components and capacitor components, and also allows condensate to be generated on the motor wiring assembly 8 and flow smoothly downward from the motor wiring assembly 8, further ensuring the reliability of the inverter components.

[0047] To further improve the heat dissipation efficiency of the inverter components and capacitor components, the heat dissipation structure 3 also includes a cooling fan 34. An air inlet is provided on the housing, and the cooling fan 34 is located at the air inlet, with its exhaust direction pointing towards the cold end 32 of the semiconductor cooling mechanism 31. The cooling fan 34 can introduce air from outside the housing into the housing and blow the cold air generated by the cold end 32 of the semiconductor cooling mechanism 31 towards the inverter components, thereby improving the heat dissipation efficiency of the inverter components.

[0048] Furthermore, the heat dissipation structure 3 also includes at least one circulating fan 35. A circulating heat exchange channel 38 is formed between the inverter element and the housing. The circulating fan 35 is disposed within the circulating heat exchange channel 38, and the air outlet direction of at least one of the circulating fans 35 is directed towards the inverter element. The circulating fan 35 drives the cool air to circulate within the circulating heat exchange channel 38, promoting the flow of cool air within the inverter cavity 41. One circulating fan 35 can directly blow cool air onto the inverter element, thereby significantly improving the heat dissipation efficiency of the cool air on the inverter element. To further improve the reliability of the cool air flow, the circulating heat exchange channel 38 is annular in shape, and the circulating fan 35 is disposed at the corner of the annulus. The circulating fan 35 changes the flow direction of the cool air within the circulating heat exchange channel 38, thereby preventing the cool air from colliding and generating turbulence at the corner of the circulating heat exchange channel 38, reducing airflow resistance within the circulating heat exchange channel 38, and improving the heat dissipation efficiency of the cool air on the inverter element.

[0049] In one implementation, the inverter element includes a first inverter assembly 51 and a second inverter assembly 52. ​​The first inverter assembly 51 and the second inverter assembly 52 are arranged side by side in the inverter cavity 41. The air outlet direction of the circulating fan 35 located to the left of the first inverter assembly 51 is towards the first inverter assembly 51, the air outlet direction of the circulating fan 35 located to the right of the first inverter assembly 51 is towards the second inverter assembly 52, the air outlet direction of the circulating fan 35 located to the right of the second inverter assembly 52 is towards the second inverter assembly 52, and the air outlet direction of the circulating fan located to the left of the second inverter assembly 52 is towards the first inverter assembly 51. When the circulating fans 35 start working, the gas can flow through the first inverter assembly 51 and then to the second inverter assembly 52, and then flow back to the first inverter assembly 51 under the action of the circulating fan 35 on the other side, thus realizing gas circulation.

[0050] Preferred, such as Figure 1 As shown, the cooling fan 34 is located on one side of the semiconductor cooling mechanism 31, and the circulating heat exchange channel 38 is located on the other side of the semiconductor cooling mechanism 31. The air outlet of the cooling fan 34 can flow into the circulating heat exchange channel 38 after passing through the cold end 32 of the semiconductor cooling mechanism 31 for circulation. At the same time, the circulating fan 35 located on the left side of the second inverter assembly 52 sends the cold air blown by the cooling fan 34 into the circulating heat exchange channel 38. Then, under the combined action of several other circulating fans, the cold air flows in the circulating heat exchange channel 38, ensuring that any position in the inverter cavity 41 can be cooled and dissipated under the action of the cold air, thereby ensuring the heat dissipation effect of the first inverter assembly 51.

[0051] The cold end 32 is provided with heat exchange fins 33, and the exhaust direction of the cooling fan 34 is directed towards the heat exchange fins 33. The heat exchange fins 33 increase the heat exchange area of ​​the cold end 32, thereby improving the cooling effect of the semiconductor cooling mechanism 31. Furthermore, a gas flow channel is formed between the heat exchange fins 33, and the airflow direction within the gas flow channel is the same as the exhaust direction of the cooling fan 34. The exhaust air from the cooling fan 34 can flow smoothly through the gas flow channel, thus carrying the cold air out of the gas flow channel and ensuring the cooling effect of the semiconductor cooling mechanism 31. To further improve the heat dissipation efficiency of the inverter components, the airflow direction of the gas flow channel is directed towards the inverter components. Under the action of the cooling fan 34, the cold air can be directly blown towards the inverter components and / or the circulating heat exchange channel 38 through the gas flow channel, preventing cold air from accumulating at the cold end 32 of the semiconductor cooling mechanism 31, ensuring the cooling effect of the semiconductor cooling mechanism 31, and thus improving the heat dissipation effect of the inverter components.

[0052] The heat dissipation structure 3 further includes a surface cooler 6, which is disposed within the inverter cavity 41. The surface cooler 6 can further cool the gas within the inverter cavity 41, thereby improving the cooling and heat dissipation effect on the inverter components. The surface cooler 6 can obtain low-temperature refrigerant from the refrigerant circulation system where the compressor assembly is located, thus achieving a cooling function. To enhance the cooling effect of the surface cooler 6, the heat dissipation structure 3 also includes a surface cooler fan 7, which is disposed on one side of the surface cooler 6, with its airflow direction towards the inverter components. By using the surface cooler fan 7 to blow the cold air generated by the surface cooler 6 towards the inverter components, the heat dissipation efficiency of the inverter components can be effectively improved. Simultaneously, due to the presence of the surface cooler 6, the gas temperature within the inverter cavity 41 is sufficiently low, and since the capacitor cavity 42 is in communication with the inverter cavity 41, the gas temperature within the capacitor cavity 42 can also be reduced, thus similarly improving the heat dissipation efficiency of the capacitor components. Furthermore, the temperature of the condensate in the inverter cavity 41 is also relatively lower, which can further improve the heat dissipation effect of the condensate on the compressor.

[0053] like Figure 1 As shown, the inverter components include a first inverter assembly 51 and a second inverter assembly 52, which are arranged side-by-side within the inverter cavity 41. The surface cooler 6 is disposed between the first inverter assembly 51 and the second inverter assembly 52. ​​At this time, the surface cooler 6 is located within the circulating heat exchange channel 38, and it can cool the gas within the circulating heat exchange channel 38, thereby improving the heat dissipation effect on the first inverter assembly 51 and the second inverter assembly 52.

[0054] Because the surface cooler 6 has a low temperature, condensation will also occur on it. Therefore, a water collection tank 36 and a water discharge tank 37 are recessed on the bottom surface of the inverter cavity 41. One end of the water discharge tank 37 is connected to the water collection tank 36, and the other end is connected to the capacitor cavity 42. The surface cooler 6 is disposed within the water collection tank 36. The condensation generated on the surface cooler 6 can flow directly into the water collection tank and then flow to the capacitor cavity 42 through the drainage effect of the water discharge tank 37. Since the water discharge tank 37 is fitted to the inner wall of the capacitor cavity 42, the water flowing into the water discharge tank 37 can also adhere to the inner wall of the capacitor cavity 42, thereby avoiding the impact of condensation on the capacitor elements and ensuring the reliability of the capacitor elements.

[0055] The bottom of the water collection tank 36 is lower than the mounting plane of the first inverter assembly 51 and the second inverter assembly 52. ​​The cross-section of the water discharge tank 37 is square, and the end of the water discharge tank 37 that communicates with the water collection tank 36 is higher than the end that communicates with the capacitor cavity 42, so as to ensure that the condensate can flow smoothly into the capacitor cavity 42.

[0056] The surface cooler 6 includes multiple parallel heat exchange coils. One end of each heat exchange coil is connected by a branch pipe to form a refrigerant inlet, and the other end is connected by another branch pipe to form a refrigerant outlet. In the refrigerant heat exchange cycle where the compressor assembly is located, the refrigerant bypassing the condenser enters the heat exchange coils after being throttled. The refrigerant exchanges heat with the external gas through the heat exchange coils. The refrigerant vaporizes and absorbs heat, while the external air releases heat and cools down, thus achieving the purpose of cooling the gas in the inverter cavity 41.

[0057] An air conditioning system includes the compressor assembly described above.

[0058] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A compressor assembly, characterized in that: include: A compressor having a compressor housing (1); The outer casing is disposed on the compressor housing (1), and the outer casing and the compressor housing (1) together form a component cavity, through which the condensate of the component cavity flows. Component (2), wherein the component (2) is disposed within the component cavity; Heat dissipation structure (3), wherein the heat dissipation structure (3) is disposed inside the component cavity; The component cavity includes a frequency converter cavity (41) and a capacitor cavity (42) that are interconnected. The frequency converter cavity (41) is located at the top of the compressor housing (1), and the capacitor cavity (42) is located on one side of the compressor housing (1). The component (2) includes a frequency converter element and a capacitor element. The frequency converter element is disposed in the frequency converter cavity (41), and the capacitor element is disposed in the capacitor cavity (42). The heat dissipation structure (3) is disposed in the frequency converter cavity (41). The heat dissipation structure (3) also includes a surface cooler (6), which is disposed in the inverter cavity (41); a water accumulation tank (36) and a water discharge tank (37) are recessed on the bottom surface of the inverter cavity (41), one end of the water discharge tank (37) is connected to the water accumulation tank (36), and the other end is connected to the capacitor cavity (42), and the surface cooler (6) is disposed in the water accumulation tank (36); The end of the unloading trough (37) that communicates with the water collection trough (36) is higher than the end that communicates with the capacitor cavity (42). The condensate generated on the surface cooler (6) can flow into the water collection trough (36) and flow to the capacitor cavity (42) through the unloading trough (37). The unloading trough (37) is attached to the inner wall of the capacitor cavity (42), so that the water flowing into the unloading trough (37) can flow on the inner wall of the capacitor cavity (42).

2. The compressor assembly according to claim 1, characterized in that: The plane containing the bottom surface of the inverter cavity (41) has an angle with the horizontal plane, and the lowest point of the bottom surface of the inverter cavity (41) is connected to the capacitor cavity (42).

3. The compressor assembly according to claim 1, characterized in that: The compressor also includes a motor, the motor housing of which constitutes part of the compressor housing (1), the outer shell and the motor housing together form the capacitor cavity (42), and the condensate of the inverter cavity (41) flows through the motor housing.

4. The compressor assembly according to claim 3, characterized in that: The compressor assembly also includes a motor wiring assembly (8), which is disposed in the inverter cavity (41) and electrically connected to the motor. The component (2) is disposed on one side of the motor wiring assembly (8), and the heat dissipation structure (3) is disposed on the motor wiring assembly (8).

5. The compressor assembly according to claim 4, characterized in that: The heat dissipation structure (3) includes a semiconductor cooling mechanism (31), which has a hot end and a cold end (32) opposite to each other. The hot end is disposed on the motor wiring assembly (8), and the cold end (32) of the semiconductor cooling mechanism (31) faces the interior of the inverter cavity (41).

6. The compressor assembly according to claim 5, characterized in that: The heat dissipation structure (3) also includes a heat dissipation fan (34). An air inlet is provided on the outer casing. The heat dissipation fan (34) is located at the air inlet, and the air outlet direction of the heat dissipation fan (34) is directed towards the cold end (32) of the semiconductor cooling mechanism (31).

7. The compressor assembly according to claim 1 or 6, characterized in that: The heat dissipation structure (3) further includes at least one circulating fan (35), and a circulating heat exchange channel (38) is formed between the inverter element and the housing. The circulating fan (35) is disposed in the circulating heat exchange channel (38), and the air outlet direction of at least one of the circulating fans (35) is directed towards the inverter element.

8. The compressor assembly according to claim 7, characterized in that: The circulating heat exchange channel (38) is annular in shape, and the circulating fan (35) is located at the corner of the annulus.

9. The compressor assembly according to claim 7, characterized in that: The inverter components include a first inverter assembly (51) and a second inverter assembly (52). The first inverter assembly (51) and the second inverter assembly (52) are arranged side by side in the inverter cavity (41). The air outlet direction of the circulating fan (35) located to the left of the first inverter assembly (51) is towards the first inverter assembly (51). The air outlet direction of the circulating fan (35) located to the right of the first inverter assembly (51) is towards the second inverter assembly (52). The air outlet direction of the circulating fan (35) located to the right of the second inverter assembly (52) is towards the second inverter assembly (52). The air outlet direction of the circulating fan (35) located to the left of the second inverter assembly (52) is towards the first inverter assembly (51).

10. The compressor assembly according to claim 6, characterized in that: The cold end (32) is provided with heat exchange fins (33), and the exhaust direction of the cooling fan (34) is directed towards the heat exchange fins (33).

11. The compressor assembly according to claim 10, characterized in that: Gas flow channels are formed between the heat exchange fins (33), and the airflow direction in the gas flow channels is the same as the airflow direction of the cooling fan (34).

12. The compressor assembly according to claim 11, characterized in that: The airflow direction of the gas channel is directed towards the frequency converter element.

13. The compressor assembly according to claim 1, characterized in that: The heat dissipation structure (3) also includes a surface cooler fan (7), which is located on one side of the surface cooler (6) and the air outlet direction of the surface cooler fan (7) is towards the inverter element.

14. The compressor assembly according to claim 1, characterized in that: The inverter components include a first inverter assembly (51) and a second inverter assembly (52), which are arranged side by side in the inverter cavity (41), and the surface cooler (6) is disposed between the first inverter assembly (51) and the second inverter assembly (52).

15. An air conditioning system, characterized in that: Includes the compressor assembly according to any one of claims 1 to 14.

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