A refrigeration module for a vehicle air conditioner and a vehicle having the same

Abstract

The application provides a refrigeration module of a vehicle air conditioner and a vehicle with the same. The refrigeration module comprises: a compressor assembly; a first heat exchanger with a first heat exchange part and a second heat exchange part, the second heat exchange part having a first heat exchange unit and a second heat exchange unit, the first heat exchange unit and the second heat exchange unit being independently arranged, a first heat exchange circuit being formed between the first heat exchange part and the compression part, a second heat exchange circuit being formed between the first heat exchange part and the first heat exchange unit, an outlet of the first heat exchange unit being communicated with a gas supplement port, and a third heat exchange circuit being formed between the first heat exchanger and the second heat exchange unit; and a fourth heat exchange circuit being formed between a second heat exchanger and the second heat exchange unit. The refrigeration module can not only increase the refrigerant flow of the compression part, but also improve the temperature of the gaseous refrigerant in the compression part, thereby improving the heat exchange efficiency of the refrigeration module during low-temperature operation.

Description

Technical Field

[0001] This invention relates to the technical field of vehicle air conditioning systems, and more specifically, to a refrigeration module for a vehicle air conditioning system and a vehicle having the same. Background Technology

[0002] Currently, automotive air conditioning systems include a compressor and two heat exchangers. The compressor includes an intake port and an exhaust port. The heat exchanger, which acts as a condenser, is connected to the exhaust port, and the heat exchanger, which acts as an evaporator, is connected to the intake port. The refrigerant is compressed, condensed, and expanded to achieve the vehicle's cooling process.

[0003] When a car's air conditioning system operates at low temperatures, the refrigerant mass flow rate entering the compressor is too small to meet the cooling demand, which in turn affects the heat exchange efficiency of the car's air conditioning system at low temperatures. Summary of the Invention

[0004] The main objective of this invention is to provide a refrigeration module for a vehicle air conditioner and a vehicle having the same, so as to solve the technical problem of low heat exchange efficiency of automotive air conditioning systems during low-temperature operation.

[0005] To achieve the above objectives, according to one aspect of the present invention, a refrigeration module for a vehicle air conditioner is provided, comprising: a compressor assembly having a compression section and a liquid storage section, the compression section having an air inlet, an exhaust port, and a gas supply port, and the liquid storage section having a liquid inlet and a liquid outlet; a first heat exchanger having a first heat exchange section and a second heat exchange section, the second heat exchange section having a first heat exchange unit and a second heat exchange unit, the first heat exchange unit and the second heat exchange unit being independently arranged, the inlet of the first heat exchange section communicating with the exhaust port, and a first heat exchange section being formed between the first heat exchange section and the compression section. The heat exchange loop has the outlet of the first heat exchange section connected to the inlet of the first heat exchange unit, the outlet of the first heat exchange unit connected to the air supply port, and the first heat exchange section and the first heat exchange unit forming a second heat exchange loop. The outlet of the first heat exchange section is connected to the liquid inlet, and the liquid outlet is connected to the inlet of the second heat exchange unit, forming a third heat exchange loop between the first heat exchanger and the second heat exchange unit. The second heat exchanger has the inlet connected to the outlet of the second heat exchange unit, the outlet of the second heat exchanger connected to the air supply port, and the second heat exchanger and the second heat exchange unit forming a fourth heat exchange loop.

[0006] Furthermore, the inlet of the first heat exchange section is connected to the exhaust port, the outlet of the first heat exchange section is connected to the inlet and liquid inlet of the first heat exchange unit respectively, the outlet of the first heat exchange unit is connected to the air supply port, the liquid outlet is connected to the inlet of the second heat exchange unit, the outlet of the second heat exchange unit is connected to the inlet of the second heat exchanger, and the outlet of the second heat exchanger is connected to the air inlet.

[0007] Furthermore, the liquid storage section has a liquid storage chamber, and a partition is provided inside the liquid storage chamber. The partition divides the liquid storage chamber into an inlet chamber and a outlet chamber. The inlet chamber is connected to the inlet, and the outlet chamber is connected to the outlet. The end of the inlet chamber away from the inlet is connected to the end of the outlet chamber away from the outlet. The volume of the inlet chamber is greater than the volume of the outlet chamber.

[0008] Furthermore, the flow cross-section of the drainage chamber is either of constant or variable cross-section, and / or the area of ​​the flow cross-section is S, where S ≥ 63.6 mm². 2 .

[0009] Furthermore, the refrigeration module also includes: a first electronic expansion valve, which is located between the outlet of the first heat exchange section and the inlet of the first heat exchange unit.

[0010] Furthermore, the refrigeration module also includes a second electronic expansion valve, which is located between the outlet of the second heat exchange unit and the inlet of the second heat exchanger.

[0011] Furthermore, the refrigeration module also includes a gas concentration sensor, which is positioned close to the compressor assembly.

[0012] Furthermore, the refrigeration module also includes a mounting plate, to which the compressor assembly is connected via feet.

[0013] Furthermore, the heat exchange medium interface of the first heat exchanger and the heat exchange medium interface of the second heat exchanger are located on the same side of the compressor assembly.

[0014] According to another aspect of the present invention, a vehicle is provided, including a refrigeration module, wherein the refrigeration module is the refrigeration module described above.

[0015] Applying the technical solution of this invention, the first heat exchange section is connected to the compression section to form a first heat exchange circuit, the first heat exchange section and the first heat exchange unit form a second heat exchange circuit, the first heat exchange section and the second heat exchange unit form a third heat exchange circuit, and the second heat exchanger and the second heat exchange unit form a fourth heat exchange circuit. The high-temperature and high-pressure gaseous refrigerant inside the compression section exchanges heat with the first heat exchange section, causing the high-temperature and high-pressure gaseous refrigerant to condense and be converted into a high-pressure liquid refrigerant with a certain degree of subcooling. A portion of the liquid refrigerant passes through the first electronic expansion valve for throttling and pressure reduction and then enters the first heat exchange unit for heat exchange, causing the liquid refrigerant to change phase into a low-pressure saturated gaseous refrigerant or a gaseous refrigerant with a certain degree of superheat. The gaseous refrigerant enters the compression section through the gas inlet to replenish the compression section. The other portion of the liquid refrigerant, after exchanging heat with the first heat exchange unit, enters the second heat exchanger and exchanges heat with the second heat exchanger. After absorbing heat, the liquid refrigerant changes phase into a low-temperature and low-pressure gaseous refrigerant. In the aforementioned refrigeration module, the medium-temperature, low-pressure gaseous refrigerant enters the compression section and neutralizes with the low-temperature, low-pressure gaseous refrigerant. This not only increases the refrigerant flow rate in the compression section but also raises the temperature of the gaseous refrigerant within the compression section, thereby improving the heat exchange efficiency of the refrigeration module during low-temperature operation. Attached Figure Description

[0016] 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:

[0017] Figure 1 This is a schematic diagram of the cooling module from a first perspective in this invention;

[0018] Figure 2 This invention shows a schematic diagram of the cooling module from a second perspective.

[0019] Figure 3 A schematic diagram of the cooling module in this invention is shown;

[0020] Figure 4 A schematic diagram of the compressor assembly in this invention is shown;

[0021] Figure 5 A schematic diagram of the structure of the first heat exchanger in this invention is shown;

[0022] Figure 6 A schematic diagram of the structure of the second heat exchanger in this invention is shown;

[0023] Figure 7 A cross-sectional schematic diagram of the liquid storage chamber in this invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 1. Compressor assembly;

[0026] 11. Compression section;

[0027] 111. Air inlet; 112. Exhaust outlet; 113. Air supply port; 114. High-voltage electrical connector; 115. Low-voltage electrical connector; 116. Base;

[0028] 12. Liquid storage part;

[0029] 121. Liquid inlet; 122. Liquid outlet; 123. Baffle; 124. Liquid inlet chamber; 125. Liquid outlet chamber;

[0030] 2. First heat exchange section;

[0031] 21. First interface; 22. Second interface; 23. First inlet; 24. First outlet; 25. First PT sensor; 26. First filling valve;

[0032] 3. Second heat exchange section;

[0033] 31. Extension tube; 32. Fourth interface; 33. Fifth interface; 34. Sixth interface; 35. First electronic expansion valve;

[0034] 4. Second heat exchanger;

[0035] 41. Seventh interface; 42. Eighth interface; 43. Second inlet; 44. Second outlet; 45. Second electronic expansion valve; 46. Second PT sensor; 47. Second filling valve; 48. Vibration damping bushing;

[0036] 5. Gas concentration sensor;

[0037] 6. Mounting plate. Detailed Implementation

[0038] 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.

[0039] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0040] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application 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 so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a 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.

[0041] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0042] The refrigeration module of an automotive air conditioning system achieves cooling through three steps: compression, condensation, and expansion. Its structure mainly includes a compressor, condenser, evaporator, and expansion valve. Through the coordinated work of these components, the refrigeration module of the automotive air conditioning system can achieve a cooling effect, thereby creating a comfortable driving and riding environment for the driver and passengers.

[0043] The compressor is the core component of the refrigeration system. Its function is to compress low-temperature, low-pressure gas into high-temperature, high-pressure gas.

[0044] A condenser is a component used to dissipate heat. Its working principle is to cool high-temperature, high-pressure gas into a high-pressure liquid.

[0045] The evaporator is a component in the refrigeration module used to absorb heat. Its working principle is to reduce the pressure of high-pressure liquid to low-pressure liquid through an expansion valve, and then evaporate it into low-temperature, low-pressure gas.

[0046] An expansion valve is a component used to control the flow rate and pressure of refrigerant. Its working principle is to adjust the flow rate of refrigerant to reduce the pressure from high-pressure liquid to low-pressure liquid, thereby achieving the cooling effect of the evaporator.

[0047] Example 1

[0048] Combination Figures 1 to 7As shown, according to a specific embodiment of this application, a refrigeration module for a vehicle air conditioner is provided.

[0049] Specifically, the vehicle air conditioning refrigeration module includes: a compressor assembly 1, a first heat exchanger, and a second heat exchanger 4. The compressor assembly 1 has a compression section 11 and a liquid storage section 12. The compression section 11 is provided with an air inlet 111, an exhaust port 112, and a replenishment port 113. The liquid storage section 12 is provided with a liquid inlet 121 and a liquid outlet 122. The first heat exchanger has a first heat exchange section 2 and a second heat exchange section 3. The second heat exchange section 3 has a first heat exchange unit and a second heat exchange unit. The first heat exchange unit and the second heat exchange unit are arranged independently. The inlet of the first heat exchange section 2 is connected to the exhaust port 112. The first heat exchange section 2 and the compression section 11 form a first heat exchange loop. The outlet of the first heat exchange section 2 is connected to the inlet of the first heat exchange unit. The outlet of the first heat exchange unit is connected to the air supply port 113. The first heat exchange section 2 and the first heat exchange unit form a second heat exchange loop. The outlet of the first heat exchange section 2 is connected to the liquid inlet 121. The liquid outlet 122 is connected to the inlet of the second heat exchange unit. The first heat exchanger and the second heat exchange unit form a third heat exchange loop. The inlet of the second heat exchanger 4 is connected to the outlet of the second heat exchange unit. The outlet of the second heat exchanger 4 is connected to the air inlet 111. The second heat exchanger 4 and the second heat exchange unit form a fourth heat exchange loop.

[0050] It should be noted that the compressor assembly 1 compresses the refrigerant in the compression section 11, transforming the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant. The high-temperature, high-pressure gaseous refrigerant in the compression section 11 exchanges heat with the first heat exchange section 2, cooling it into a high-pressure liquid refrigerant with a certain degree of subcooling. A portion of the liquid refrigerant exchanges heat with the first heat exchange unit, absorbing heat and transforming into a low-temperature, low-pressure gaseous refrigerant. This gaseous refrigerant enters the compression section 11 through the gas inlet 113 to replenish the compression section 11. The remaining liquid refrigerant is stored in the liquid storage section 12. The liquid refrigerant in the liquid storage section 12 enters the second heat exchange unit, exchanges heat with it, and then enters the second heat exchanger 4 for further heat exchange, absorbing heat and transforming into a low-temperature, low-pressure gaseous refrigerant. This low-temperature, low-pressure gaseous refrigerant enters the compression section 11 through the gas inlet 111.

[0051] It should be noted that the first heat exchange section 2 and the second heat exchange section 3 are isolated by welding, and are only connected by an interface.

[0052] In the embodiments of this application, the first heat exchange section 2 is connected to the compression section 11 to form a first heat exchange circuit, the first heat exchange section 2 and the first heat exchange unit form a second heat exchange circuit, the first heat exchange section 2 and the second heat exchange unit form a third heat exchange circuit, and the second heat exchanger 4 and the second heat exchange unit form a fourth heat exchange circuit. The high-temperature and high-pressure gaseous refrigerant inside the compression section 11 exchanges heat with the first heat exchange section 2, causing the high-temperature and high-pressure gaseous refrigerant to condense and convert into a high-pressure liquid with a certain degree of subcooling. The refrigerant, in its liquid state, enters the first heat exchange unit after being throttled and depressurized by the first electronic expansion valve. This process transforms the liquid refrigerant into a low-pressure saturated gaseous refrigerant or a gaseous refrigerant with a certain degree of superheat. The gaseous refrigerant then enters the compression section 11 through the gas inlet 113 to replenish the compression section. The remaining liquid refrigerant, after exchanging heat with the first heat exchange unit, enters the second heat exchanger 4 for further heat exchange. After absorbing heat, the liquid refrigerant transforms into a low-temperature, low-pressure gaseous refrigerant. In this refrigeration module, the medium-temperature, low-pressure gaseous refrigerant enters the compression section 11 and neutralizes with the low-temperature, low-pressure gaseous refrigerant. This not only increases the refrigerant flow rate in the compression section 11 but also raises the temperature of the gaseous refrigerant within the compression section 11, thereby improving the heat exchange efficiency of the refrigeration module during low-temperature operation.

[0053] Specifically, in the embodiments of this application, the first heat exchange section 2 is provided with a first interface 21 and a second interface 22. The first interface 21 serves as the inlet of the first heat exchange section 2, and the second interface 22 serves as the outlet of the first heat exchange section 2. The first heat exchange section 2 is also provided with a first inlet 23 and a first outlet 24. The heat exchange medium enters the first heat exchange section 2 through the first inlet 23 and flows out of the first heat exchange section 2 through the first outlet 24 to exchange heat with the refrigerant in the first heat exchange section 2. The first heat exchange unit is provided with a third interface and a fourth interface 32. The third interface serves as the inlet of the first heat exchange unit, and the fourth interface 32 serves as the outlet of the first heat exchange unit. The first heat exchange unit exchanges heat with the refrigerant in the first heat exchanger through heat exchange plates. The second heat exchange unit is provided with a fifth interface 33 and a sixth interface 34. The fifth interface 33 serves as the inlet of the second heat exchange unit, and the sixth interface 34 serves as the outlet of the second heat exchange unit. The second heat exchange unit exchanges heat with the refrigerant in the first heat exchanger through heat exchange plates. The second heat exchanger 4 is provided with a seventh port 41 and an eighth port 42. The seventh port 41 serves as the inlet of the second heat exchanger 4, and the eighth port 42 serves as the outlet of the second heat exchanger 4. The second heat exchanger 4 is also provided with a second inlet 43 and a second outlet 44. The heat exchange medium enters the second heat exchanger 4 through the second inlet 43 and flows out of the second heat exchanger 4 through the second outlet 44 to exchange heat with the refrigerant inside the second heat exchanger 4. The first heat exchange section 2 and the second heat exchange section 3 are encapsulated together. The third port is welded to the second port 22 through an extension tube 31. The extension tube 31 is provided to meet the layout requirements of the first heat exchange section 2 and the second heat exchange section 3.

[0054] In order to facilitate connection with external devices, the interfaces at the first inlet 23 and the first outlet 24 are quick connectors, as are the interfaces at the second inlet 43 and the second outlet 44.

[0055] Furthermore, the inlet of the first heat exchange section 2 is connected to the exhaust port 112, the outlet of the first heat exchange section 2 is connected to the inlet and liquid inlet 121 of the first heat exchange unit, the outlet of the first heat exchange unit is connected to the gas supply port 113, the liquid outlet 122 is connected to the inlet of the second heat exchange unit, the outlet of the second heat exchange unit is connected to the inlet of the second heat exchanger 4, and the outlet of the second heat exchanger 4 is connected to the air inlet 111. That is, there are no pipe connections between the compressor assembly 1, the first heat exchanger, and the second heat exchanger 4, eliminating pipe joint leaks, reducing system costs, minimizing potential refrigerant leak points, and improving the airtightness of the refrigeration module.

[0056] Specifically, in the embodiments of this application, the first interface 21 is plugged into the exhaust port 112, the second interface 22 is plugged into the third interface and the liquid inlet 121 respectively, the fourth interface 32 is plugged into the gas supply port 113, the liquid drain port 122 is plugged into the fifth interface 33, the seventh interface 41 is plugged into the sixth interface 34, and the eighth interface 42 is plugged into the air inlet 111. The plug-in connections are generally welded to reduce potential refrigerant leakage points.

[0057] Preferably, such as Figure 4 As shown, the axis of the air inlet 111 is horizontally set, while the axes of the exhaust port 112, liquid inlet 121, and liquid outlet 122 are all vertically set, meaning they are parallel to each other. The interface of the first heat exchanger is directly plugged into the interface of the compressor assembly, eliminating the need for a hose connection and making the refrigeration module structure more compact. The axis of the eighth interface 42 of the second heat exchanger 4 is parallel to the axis of the air inlet 111, and they are directly plugged into each other without the need for a hose connection, further enhancing the compactness of the refrigeration module structure.

[0058] Preferably, such as Figure 4 As shown, the vent 112 is located near the liquid storage section 12.

[0059] Furthermore, the liquid storage section 12 has a liquid storage chamber, and a partition 123 is provided in the liquid storage chamber. The partition 123 divides the liquid storage chamber into an inlet chamber 124 and a drain chamber 125. The inlet chamber 124 is connected to the inlet port 121, and the drain chamber 125 is connected to the drain port 122. The end of the inlet chamber 124 away from the inlet port 121 is connected to the end of the drain chamber 125 away from the drain port 122. The volume of the inlet chamber 124 is larger than the volume of the drain chamber 125. The refrigerant flowing into the inlet chamber 124 may contain a portion of gaseous refrigerant. Within the storage chamber, the liquid refrigerant is distributed at the bottom due to gravity, while the gaseous refrigerant is distributed at the top. Separating the inlet chamber 124 and the outlet chamber 125 allows the liquid refrigerant at the bottom of the storage chamber to flow into the second heat exchanger 4 through the outlet 122, reducing the amount of gaseous refrigerant entering the second heat exchanger 4 and minimizing its impact on heat exchange efficiency. The volume of the inlet chamber 124 is larger than that of the outlet chamber 125. When the refrigerant enters the inlet chamber 124 through the inlet 121, it undergoes sufficient expansion and noise reduction, thus lowering the refrigerant flow noise.

[0060] It should be noted that the liquid receiver 12 is integrated into the compressor assembly 1, eliminating the need for a separate liquid receiver tank and making the integrated refrigeration module more compact. There are no piping connections between the liquid receiver 12 and the heat exchanger, further reducing potential refrigerant leakage points.

[0061] Preferably, the flow cross-section of the drain chamber 125 is set with a uniform cross-section, so that the flow rate of the liquid refrigerant is more uniform and the heat exchange medium in the second heat exchanger 4 can be fully exchanged.

[0062] Preferably, the cross-sectional area of ​​the discharge chamber 125 is S, where S ≥ 63.6 mm². 2 .

[0063] As an alternative implementation, the flow cross-section of the drain chamber 125 can be a variable cross-section, as long as the area S of the flow cross-section is ≥ 63.6 mm². 2 That's all.

[0064] Furthermore, the refrigeration module also includes a first electronic expansion valve 35, which is located between the outlet of the first heat exchange section 2 and the inlet of the first heat exchange unit.

[0065] Specifically, in the embodiments of this application, such as Figure 5 As shown, the first electronic expansion valve 35 is integrated on the second heat exchange section 3, and the first electronic expansion valve 35 throttles and reduces the pressure of the refrigerant.

[0066] Furthermore, the refrigeration module also includes a second electronic expansion valve 45, which is located between the outlet of the second heat exchange unit and the inlet of the second heat exchanger 4.

[0067] Specifically, in the embodiments of this application, such as Figure 6 As shown, the second electronic expansion valve 45 is integrated on the second heat exchanger 4, and the second electronic expansion valve 45 throttles and reduces the pressure of the refrigerant.

[0068] Furthermore, the refrigeration module also includes a gas concentration sensor 5, which is positioned close to the compressor assembly 1. The gas concentration sensor 5 is used to detect the concentration of leaked gaseous refrigerant, enabling timely detection of leaks and allowing for appropriate safety precautions.

[0069] Specifically, in the embodiments of this application, the refrigerant is R290. R290 is flammable and explosive, and its density is greater than that of air. Therefore, the gas concentration sensor 5 is positioned near the lowest point of the compressor assembly 1, and is located near the high-pressure side of the compressor assembly. When the refrigerant is R290, the corresponding gas concentration sensor 5 is an R290 concentration sensor.

[0070] The refrigeration module in the embodiments of this application is also applicable to other refrigerants, such as R134a, R1234yf, carbon dioxide, and mixed refrigerants. The corresponding gas concentration sensor 5 is an R134a concentration sensor, an R1234yf concentration sensor, a carbon dioxide concentration sensor, and a mixed refrigerant concentration sensor.

[0071] Furthermore, the refrigeration module also includes a mounting plate 6, and the compressor assembly 1 is connected to the mounting plate 6 via a foot 116. The refrigeration module is installed in the vehicle via the mounting plate 6 to facilitate installation of the refrigeration module in the vehicle.

[0072] The gas concentration sensor 5 and the second heat exchanger 4 are both connected to the mounting plate 6.

[0073] Furthermore, the heat exchange medium interface of the first heat exchange section 2 and the heat exchange medium interface of the second heat exchanger 4 are located on the same side of the compressor assembly 1. Specifically, the first inlet 23, the first outlet 24, the second inlet 43, and the second outlet 44 are all located on the same side of the compressor assembly 1, so that the heat exchange medium pipeline is arranged on the same side of the compressor assembly 1, saving layout space of the refrigeration module.

[0074] As an alternative implementation, the heat exchange medium interface of the first heat exchange section 2 and the heat exchange medium interface of the second heat exchanger 4 are located on opposite sides of the compressor assembly 1, respectively.

[0075] Furthermore, the compressor assembly 1 is provided with a high-voltage electrical connector 114 and a low-voltage electrical connector 115. The high-voltage electrical connector 114 and the low-voltage electrical connector 115 can be located on the outside of the compressor assembly 1 or on the inside of the compressor assembly 1, depending on the layout space.

[0076] Furthermore, a vibration damping bushing 48 is provided at the mounting hole of the second heat exchanger 4. The vibration damping bushing 48 is connected to the mounting plate 6 to buffer and dampen vibration, reducing the impact of compressor vibration on the second heat exchanger 4. A second charging valve 47 and a second PT sensor 46 are provided at the outlet (eighth interface 42) of the second heat exchanger 4. The second PT sensor 46 is used to detect the temperature and pressure of the gaseous refrigerant in the second heat exchanger 4, and the second charging valve 47 is used to complete the charging and recovery of refrigerant.

[0077] Furthermore, a first PT sensor 25 and a second PT sensor 46 are provided at the inlet (first interface 21) of the first heat exchange section 2 for detecting the temperature and pressure of the gaseous refrigerant in the compression section 11; a first charging valve 26 and a second charging valve 47 are provided at the outlet (second interface 22) of the first heat exchange section 2 for completing the charging and recovery of refrigerant.

[0078] Example 2

[0079] According to another specific embodiment of this application, a vehicle is provided, including a refrigeration module, which is the refrigeration module described in the above embodiment. The refrigeration module includes a first heat exchange unit. Medium-temperature, low-pressure gaseous refrigerant enters the compression section 11 and neutralizes with low-temperature, low-pressure gaseous refrigerant. This not only increases the refrigerant flow rate in the compression section 11 but also raises the temperature of the gaseous refrigerant within the compression section 11, thereby improving the heat exchange efficiency of the refrigeration module during low-temperature operation. Furthermore, the refrigeration module has no additional piping, eliminating leaks at pipe joints, reducing potential refrigerant leakage points, and improving the airtightness of the refrigeration module.

[0080] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0081] 1. The second heat exchange section 3 has a first heat exchange unit and a second heat exchange unit. The first heat exchange unit and the second heat exchange unit are set independently. A third heat exchange circuit is formed between the first heat exchange section 2 and the second heat exchange unit, so that the liquid refrigerant absorbs heat and changes into a medium-temperature and low-pressure gaseous refrigerant. The gaseous refrigerant enters the compression section 11 through the gas inlet 113 to replenish the compression section 11. The medium-temperature and low-pressure gaseous refrigerant enters the compression section 11 and neutralizes with the low-temperature and low-pressure gaseous refrigerant. This not only increases the refrigerant flow rate of the compression section 11, but also increases the temperature of the gaseous refrigerant in the compression section 11, thereby improving the heat exchange efficiency of the refrigeration module when operating at low temperatures.

[0082] 2. There are no pipe connections between the compressor assembly 1, the first heat exchanger, and the second heat exchanger 4, eliminating pipe joint leaks, reducing system costs, eliminating potential refrigerant leak points, and improving the airtightness of the refrigeration module.

[0083] 3. The liquid receiver 12 is integrated into the compressor assembly 1, eliminating the need for a separate liquid receiver tank and making the integrated refrigeration module more compact. There are no piping between the liquid receiver 12 and the heat exchanger, further reducing potential refrigerant leakage points.

[0084] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0085] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0086] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0087] 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 refrigeration module for a vehicle air conditioner, characterized in that, include: The compressor assembly (1) has a compression section (11) and a liquid storage section (12). The compression section (11) is provided with an air inlet (111), an exhaust port (112) and a replenishment port (113). The liquid storage section (12) is provided with a liquid inlet (121) and a liquid outlet (122). The first heat exchanger has a first heat exchange section (2) and a second heat exchange section (3). The second heat exchange section (3) has a first heat exchange unit and a second heat exchange unit. The first heat exchange unit and the second heat exchange unit are independently arranged. The inlet of the first heat exchange section (2) is connected to the exhaust port (112). The first heat exchange section (2) and the compression section (11) form a first heat exchange circuit. The outlet of the first heat exchange section (2) is connected to the inlet of the first heat exchange unit. The outlet of the first heat exchange unit is connected to the air supply port (113). The first heat exchange section (2) and the first heat exchange unit form a second heat exchange circuit. The outlet of the first heat exchange section is connected to the liquid inlet (121). The liquid outlet (122) is connected to the inlet of the second heat exchange unit. The first heat exchange section and the second heat exchange unit form a third heat exchange circuit. The second heat exchanger (4) has its inlet connected to the outlet of the second heat exchange unit and its outlet connected to the air inlet (111). The second heat exchanger (4) and the second heat exchange unit form a fourth heat exchange circuit. The liquid storage section (12) has a liquid storage chamber, and a partition (123) is provided in the liquid storage chamber. The partition (123) divides the liquid storage chamber into an inlet chamber (124) and a drain chamber (125). The inlet chamber (124) is connected to the inlet port (121), and the drain chamber (125) is connected to the drain port (122). The end of the inlet chamber (124) away from the inlet port (121) is connected to the end of the drain chamber (125) away from the drain port (122). The volume of the inlet chamber (124) is greater than the volume of the drain chamber (125).

2. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The inlet of the first heat exchange section (2) is connected to the exhaust port (112), the outlet of the first heat exchange section (2) is connected to the inlet of the first heat exchange unit and the liquid inlet (121) respectively, the outlet of the first heat exchange unit is connected to the air supply port (113), the liquid outlet (122) is connected to the inlet of the second heat exchange unit, the outlet of the second heat exchange unit is connected to the inlet of the second heat exchanger (4), and the outlet of the second heat exchanger (4) is connected to the air inlet (111).

3. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The flow cross-section of the drain chamber (125) is either a constant cross-section or a variable cross-section, and / or the area of ​​the flow cross-section is S, where S ≥ 63.6 mm². 2 .

4. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The refrigeration module also includes: The first electronic expansion valve (35) is located between the outlet of the first heat exchange section (2) and the inlet of the first heat exchange unit.

5. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The refrigeration module also includes: The second electronic expansion valve (45) is located between the outlet of the second heat exchange unit and the inlet of the second heat exchanger (4).

6. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The refrigeration module also includes: A gas concentration sensor (5) is disposed near the compressor assembly (1).

7. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The refrigeration module also includes: Mounting plate (6), the compressor assembly (1) is connected to the mounting plate (6) via feet.

8. The refrigeration module of the vehicle air conditioner according to claim 1, characterized in that, The heat exchange medium interface of the first heat exchange unit (2) and the heat exchange medium interface of the second heat exchanger (4) are located on the same side of the compressor assembly (1).

9. A vehicle, comprising a refrigeration module, characterized in that, The refrigeration module is the refrigeration module according to any one of claims 1-8.

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