Thermal management integrated module for refrigerant side, propane refrigerating system and vehicle

Abstract

The utility model discloses a heat management integrated module for a refrigerant side, a propane refrigerating system and a vehicle. The module comprises an integrated runner plate on which a compressor, a water-cooled condenser, a liquid storage drying tank, an electronic expansion valve and a battery cooling heat exchanger are integrated. Refrigerant circulates among all the components through a first flow channel, a second flow channel and a third flow channel which are independently arranged in the flow channel plate. By adopting the integrated design, the refrigerant leakage risk is remarkably reduced, the system size is effectively reduced, the space is saved, the heat management performance is improved, and key support is provided for safe application of the propane refrigeration technology.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of refrigeration system heat management, in particular to a heat management integrated module for refrigerant side, propane refrigeration system and vehicle. BACKGROUND

[0002] Under the background of carbon neutralization, low global warming potential (GWP) refrigerant becomes the first choice to replace traditional refrigerant. As a kind of natural working medium refrigerant, propane (R290) has extremely low GWP and is gradually becoming the alternative choice of traditional refrigerant due to its significant environmental protection advantages.

[0003] However, the existing R290 heat management system usually adopts a decentralized component arrangement, such as a compressor, a heat exchanger, an expansion valve, a liquid storage tank and other components arranged in a decentralized manner and connected through air conditioning pipelines. This arrangement results in a large number of system pipeline joints and a large number of potential refrigerant leakage points. R290, as a flammable refrigerant, may cause safety hazards due to leakage. At the same time, the decentralized components and connecting pipelines make the entire heat management system bulky and occupy a large space. In order to ensure the refrigeration performance, the system needs a high refrigerant charge, which further increases the safety risk and makes it difficult to meet the strict regulations on R290 charge.

[0004] Therefore, the existing R290 heat management system has technical defects such as high refrigerant leakage risk, large system volume and insufficient heat management of the flow channel plate, and needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the purpose of the utility model is to provide a heat management integrated module for refrigerant side, which is applied to a propane refrigeration system to solve the technical problems of high R290 refrigerant leakage risk and large system volume, and to provide an R290 heat management integrated module with high safety, high integration, compact structure and good heat management performance.

[0006] The utility model provides a heat management integrated module for refrigerant side, which is applied to a propane refrigeration system and comprises:

[0007] a flow channel plate;

[0008] a compressor arranged on the flow channel plate;

[0009] a water-cooled condenser arranged on the flow channel plate, a refrigerant inlet of the water-cooled condenser being communicated with an exhaust port of the compressor, and a refrigerant outlet of the water-cooled condenser being communicated with an inlet of a first flow channel on the flow channel plate;

[0010] A liquid storage and drying tank is arranged on the flow channel plate, a refrigerant inlet of the liquid storage and drying tank is communicated with an outlet of the first flow channel, and a refrigerant outlet of the liquid storage and drying tank is communicated with an inlet of a second flow channel on the flow channel plate;

[0011] An electronic expansion valve is arranged on the flow channel plate, a refrigerant inlet of the electronic expansion valve is communicated with an outlet of the second flow channel, and a refrigerant outlet of the electronic expansion valve is communicated with an inlet of a third flow channel on the flow channel plate;

[0012] A battery cooling heat exchanger is arranged on the flow channel plate, a refrigerant inlet of the battery cooling heat exchanger is communicated with an outlet of the third flow channel, and a refrigerant outlet is communicated with a suction port of the compressor;

[0013] The first flow channel, the second flow channel and the third flow channel are arranged inside the flow channel plate, and the first flow channel, the second flow channel and the third flow channel are independent of each other.

[0014] In some optional embodiments, the first flow channel, the second flow channel and the third flow channel are circular cross-section flow channels.

[0015] In some optional embodiments, the extension path of the circular cross-section flow channel in the plane of the flow channel is a smooth curve, and the smooth curve does not contain acute angle or right angle bending.

[0016] In some optional embodiments, the diameter of the circular cross-section is 16mm-18mm.

[0017] In some optional embodiments, the compressor, the water-cooled condenser, the liquid storage and drying tank, the electronic expansion valve and the battery cooling heat exchanger are arranged on different surfaces of the flow channel plate.

[0018] In some optional embodiments, an isolation structure is arranged on the flow channel plate, the isolation structure is arranged between the liquid storage and drying tank and the battery cooling heat exchanger, and is used for heat insulation.

[0019] In some optional embodiments, the isolation structure is a notch or groove arranged on the flow channel plate between the second flow channel and the third flow channel.

[0020] In some optional embodiments, O-rings are used to seal between the flow channel plate and the compressor, the water-cooled condenser, the liquid storage and drying tank, the electronic expansion valve and the battery cooling heat exchanger.

[0021] In some optional embodiments, a pressure and temperature sensor and a thermal management system controller are arranged on the flow channel plate.

[0022] In some optional embodiments, the compressor, the water-cooled condenser, the liquid storage and drying tank, the electronic expansion valve, the battery cooling heat exchanger, the pressure and temperature sensor and the thermal management system controller are arranged on the flow channel plate by means of bolt connection.

[0023] The utility model also provides a kind of propane refrigeration system, including the heat management integrated module for refrigerant side of above.

[0024] The utility model provides a kind of vehicle, including the heat management integrated module for refrigerant side of above.

[0025] The heat management integrated module for refrigerant side, propane refrigeration system and vehicle of the utility model have the following beneficial effects:

[0026] The utility model adopts the heat management integrated module of integrated design, can reduce pipeline connection point, to reduce the possibility of leakage, solve the problem that existing R290 refrigerant leakage risk is high, system volume is huge. BRIEF DESCRIPTION OF DRAWINGS

[0027] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0028] Figure 1 It is the three-dimensional structure schematic diagram of the heat management integrated module for refrigerant side of the utility model embodiment;

[0029] Figure 2 It is the flow channel plate structure schematic diagram of the heat management integrated module for refrigerant side of the utility model embodiment.

[0030] Among them, 100-compressor, 110-compressor's exhaust port, 120-compressor's suction port, 200-flow channel plate, 210-first flow channel, 211-first flow channel's entrance, 212-first flow channel's outlet, 220-second flow channel, 221-second flow channel's entrance, 222-second flow channel's outlet, 230-third flow channel, 231-third flow channel's entrance, 232-third flow channel's outlet, 240-isolation structure, 300-electronic expansion valve, 400-liquid storage drying tank, 500-water-cooled condenser, 600-battery cooling heat exchanger. DETAILED DESCRIPTION

[0031] The implementation of the utility model will be easily understood by the person skilled in the art from the content disclosed by the utility model, and other advantages and effects of the utility model can also be easily understood by the person skilled in the art from the content disclosed by the utility model. The utility model can also be implemented or applied to system by different specific embodiments, and each detail in the utility model can be modified or changed according to different viewpoints and application systems without departing from the spirit of the utility model. It should be noted that, in the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0032] The embodiments of the present application will be described below in detail with reference to the accompanying drawings. The present application can be embodied in various different forms and is not limited to the embodiments described herein.

[0033] In the present application, the expressions of "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific features, structures, materials or characteristics expressed in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics expressed can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples expressed in the present application and the features of the different embodiments or examples without contradiction.

[0034] In addition, the terms "first", "second" are only used for the purpose of expression and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0035] In order to clearly illustrate the present application, the devices irrelevant to the description are omitted, and the same or similar constituent elements throughout the description are assigned the same reference numerals.

[0036] Throughout the description, when it is said that a device is "connected" to another device, it not only includes the case of "direct connection", but also includes the case of "indirect connection" in which other elements are placed therebetween. In addition, when it is said that a device "includes" a certain constituent element, unless otherwise specifically stated, other constituent elements are not excluded, but it means that other constituent elements can also be included.

[0037] It should be further understood that the terms "comprise", "include", "contain", "have" indicate the presence of the features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0038] Although not defined differently, the technical terms and scientific terms used herein include the technical terms and scientific terms commonly used in the technical field to which the present application belongs, and all the terms have the same meaning as that generally understood by the person skilled in the art to which the present application belongs. The terms defined in the general dictionary are additionally explained to have a meaning consistent with the related technical documents and the content currently prompted, and if not defined, should not be interpreted as an ideal or very formal meaning.

[0039] The utility model provides a kind of heat management integrated module for refrigerant side, it is applied to propane refrigeration system, by integrated design, reduce refrigerant leakage point, reduce leakage risk, improve the security of system. Meanwhile, the integrated module structure is compact, small, save space. In addition, by being provided with independent flow channel each other in flow channel plate, and optimizing flow channel design, reduce system flow resistance, improve efficiency. The utility model further is provided with isolation structure 240 on flow channel plate, reduce the heat transfer in flow channel plate, improve the heat management performance of system, help to prevent system from heat.

[0040] As shown in Figure 1 And Figure 2 The utility model provides a kind of heat management integrated module for refrigerant side, it is applied to propane refrigeration system, including:

[0041] Flow channel plate 200;

[0042] Compressor 100 is arranged on flow channel plate 200;

[0043] Water-cooled condenser 500 is arranged on flow channel plate 200, and the refrigerant inlet of water-cooled condenser 500 is communicated with the exhaust port of compressor 100, and the refrigerant outlet of water-cooled condenser 500 is communicated with the inlet 211 of first flow channel on flow channel plate 200;

[0044] Liquid storage drying tank 400 is arranged on flow channel plate 200, and the refrigerant inlet of liquid storage drying tank 400 is communicated with the outlet 212 of first flow channel, and the refrigerant outlet of liquid storage drying tank 400 is communicated with the inlet 221 of second flow channel on flow channel plate 200;

[0045] Electronic expansion valve 300 is arranged on flow channel plate 200, and the refrigerant inlet of electronic expansion valve 300 is communicated with the outlet 222 of second flow channel, and the refrigerant outlet of electronic expansion valve 300 is communicated with the inlet 231 of third flow channel on flow channel plate 200;

[0046] And, battery cooling heat exchanger 600 is arranged on flow channel plate 200, and the refrigerant inlet of battery cooling heat exchanger 600 is communicated with the outlet 232 of third flow channel, and the refrigerant outlet is communicated with the suction port of compressor 100;

[0047] The first flow channel 210, the second flow channel 220 and the third flow channel 230 are arranged inside the flow channel plate 200 and are independent of each other.

[0048] In the embodiment, the flow channel plate 200 integrates multiple key components of the refrigeration system through integrated design. The integration of the compressor 100, the water-cooled condenser 500, the liquid storage and drying tank 400, the electronic expansion valve 300 and the battery cooling heat exchanger 600 reduces the connecting pipelines required in the traditional distributed system, thereby significantly reducing the risk of refrigerant leakage and realizing the miniaturization and integration of the system. The first flow channel 210, the second flow channel 220 and the third flow channel 230 integrated inside the flow channel plate provide a channel for the circulation of the refrigerant, ensuring the smooth progress of the refrigeration cycle. The first flow channel 210, the second flow channel 220 and the third flow channel 230 are independent of each other, which can prevent the refrigerant from interfering with each other between different components and ensure the normal operation of each component.

[0049] In specific implementation, the flow channel plate 200 can be made of aluminum alloy material, such as 6061 aluminum alloy, and is integrally formed through casting forming process. The compressor 100 can be an electric compressor, and the exhaust port thereof can be connected with the refrigerant inlet of the water-cooled condenser 500 through threaded connection or welding. The water-cooled condenser 500 is used to cool the high-temperature and high-pressure refrigerant gas into liquid state, and the refrigerant outlet thereof is connected with the inlet 211 of the first flow channel, so that the liquid refrigerant can enter the inside of the flow channel plate. The liquid storage and drying tank 400 is used to store the liquid refrigerant and absorb moisture in the system, and the refrigerant outlet thereof is connected with the inlet 221 of the second flow channel. The electronic expansion valve 300 is used to adjust the flow and pressure of the refrigerant, and the refrigerant outlet thereof is connected with the inlet 231 of the third flow channel. The battery cooling heat exchanger 600 is used to cool the battery, and the refrigerant outlet thereof is connected with the suction port of the compressor 100, forming a complete refrigeration cycle circuit. Reliable sealing is required between the above-mentioned components through sealing members.

[0050] The integrated module can significantly reduce the leakage points of the refrigerant and improve the safety of the system. At the same time, by integrating multiple components on the flow channel plate, the volume of the system is reduced and the installation space is saved. In addition, since the connection distance between the components is shortened, the flow resistance of the refrigerant is also reduced, which helps to improve the refrigeration efficiency of the system.

[0051] In some embodiments, the first flow channel 210, the second flow channel 220 and the third flow channel 230 are circular cross-section flow channels. In the present embodiment, the first flow channel 210, the second flow channel 220 and the third flow channel 230 refer to the passages formed inside the flow channel plate 200 for guiding the refrigerant to flow between different components. The adoption of circular cross-section flow channels means that the cross-sectional shape of the first flow channel 210, the second flow channel 220 and the third flow channel 230 are all circular. In the technical field, circular cross-section flow channels have smooth inner walls, which can effectively reduce the frictional resistance of the fluid when flowing in the pipeline and ensure the smoothness of the fluid flow. For a given flow channel cross-sectional area, the circular cross-section has the smallest perimeter, which can minimize the contact area between the inner wall of the flow channel and the refrigerant, thereby reducing the frictional resistance generated by the refrigerant when flowing in the flow channel. Especially in the heat management integrated module of the present utility model, the refrigerant needs to flow in the flow channels inside the flow channel plate 200 and pass through a plurality of refrigeration components in turn, and reducing the flow channel resistance is crucial to ensuring the effective circulation of the refrigerant and improving the overall efficiency of the system. In other embodiments, the first flow channel 210, the second flow channel 220 and the third flow channel 230 can also adopt flow channels with elliptical, racetrack-shaped or other cross-sectional shapes with smooth inner walls, so as to minimize the frictional resistance of the inner wall of the flow channel while ensuring the strength of the flow channel, and ensure the low-resistance smooth flow of the refrigerant in the flow channel plate 200.

[0052] In the specific implementation process, the diameter of the fluid pipeline directly affects the flow capacity of the pipeline and the flow characteristics of the fluid in the pipeline. If the diameter is too small, it will cause excessive flow resistance and affect the fluid flow; if the diameter is too large, it will increase the material cost and occupy space, which may not be conducive to the compactness of the equipment. Therefore, in the design of a refrigeration system, various factors such as the type of refrigerant, the system refrigeration capacity, the size of the components, etc. need to be considered comprehensively. Based on the comprehensive analysis and experimental verification of the physical parameters of R290 refrigerant, as well as the system refrigeration capacity demand and component size of the heat management integrated module of the present utility model, it is determined that the inner diameter of the circular cross-section flow channel is between 16 mm and 18 mm. For the R290 refrigerant used in the automobile heat management system, a circular cross-section diameter of 16 mm-18 mm can achieve a good balance between ensuring the refrigerant flow demand and reducing the flow resistance.

[0053] By designing the first flow channel 210, the second flow channel 220 and the third flow channel 230 as circular cross-section flow channels, the frictional resistance of the refrigerant when flowing inside the flow channel plate 200 can be effectively reduced, the system energy loss can be reduced, the refrigerant circulation efficiency can be improved, and thus the overall refrigeration performance and energy efficiency level of the R290 heat management integrated module can be improved.

[0054] In some embodiments, the extension path of the circular cross-section flow channel within the plane of the flow channel plate 200 is a smooth curve, and the smooth curve extension path does not contain acute or right-angle bends. In this embodiment, the extension path within the plane of the flow channel plate 200 refers to, for example... Figure 2 Viewed from a top or bottom view of the flow channel plate 200, the direction and trajectory of the refrigerant flow channel on the two-dimensional plane of the flow channel plate 200 are shown. A smooth curve means that the flow channel's direction within the plane of the flow channel plate 200 presents a continuous, rounded straight line or curved shape, such as a straight line, an arc, an elliptical curve, or other forms of smooth curves. The extended path of the smooth curve does not contain acute angles or right angle bends; that is, the curvature transition of the flow channel is continuous and gentle, avoiding abrupt angle changes, such as acute angle bends less than 90 degrees or right angle bends of 90 degrees.

[0055] In fluid dynamics, when fluid flows through pipes, significant flow separation and eddy currents occur at bends, especially sharp or right-angle bends, leading to increased energy loss and flow resistance. Using a smooth, curved flow path guides the refrigerant to gradually change direction, avoiding or reducing flow separation and eddy currents, thus effectively reducing flow resistance and improving flow efficiency. Particularly in the thermal management integrated module of this invention, to achieve a compact design, the flow path needs to adapt to the internal structure of the flow channel plate 200 to connect different refrigeration components. Using a smooth, curved flow path is crucial for reducing pressure loss caused by bends and ensuring smooth refrigerant circulation. The smooth, curved extension path can be an arc, elliptical curve, S-curve, or other commonly used smooth curve shapes to ensure a smooth transition during bends and minimize flow resistance.

[0056] The circular cross-section flow channel is designed with a smooth curve extending within the plane of the flow channel plate 200, without any sharp or right-angle bends. This effectively reduces the flow resistance loss of the refrigerant at the bends in the flow channel, ensuring low-resistance and smooth flow of the refrigerant within the flow channel plate 200, thereby further improving the cooling efficiency and reliability of the R290 thermal management integrated module.

[0057] In some embodiments, the compressor 100, water-cooled condenser 500, liquid receiver-drier 400, electronic expansion valve 300, and battery cooling heat exchanger 600 are disposed on different sides of the flow channel plate 200. In this embodiment, "disposed on different sides of the flow channel plate 200" means that the multiple refrigeration components in the thermal management integrated module are not all concentrated on the same side surface of the flow channel plate 200. Instead, based on the overall structural layout and space utilization requirements of the module, some refrigeration components are disposed on the front side of the flow channel plate 200, for example...Figure 1 part of the refrigeration components is arranged on the back surface of the flow channel plate 200, for example Figure 1 the lower surface of the flow channel plate 200, or on different surfaces such as the side surface of the flow channel plate 200. For a plate-shaped structural member, different surfaces usually refer to two main surfaces opposite to each other, such as the top surface and the bottom surface, but can also include other surfaces such as the side surface. By optimizing the spatial layout of the refrigeration components on the flow channel plate 200, making full use of the three-dimensional spatial structure of the flow channel plate 200, more refrigeration components can be integrated on the limited area of the flow channel plate 200, realizing the compactness of the module structure. Especially in the thermal management integrated module of the utility model, the number of refrigeration components to be integrated is relatively large, and each component also has a certain volume. If all the components are arranged on the same side surface of the flow channel plate 200, the planar size of the module will inevitably increase, and the overall structure will be bloated, which is not conducive to the miniaturization and integration of the module. By arranging part of the components on different surfaces of the flow channel plate 200, the size of the module in the horizontal direction can be effectively reduced, the overall profile area of the module can be reduced, the module structure is more compact, and the space occupied is smaller, which is more easily arranged and installed in the application scene of limited space such as vehicles.

[0058] In other embodiments, relatively large refrigeration components such as the compressor 100 and the water-cooled condenser 500 can be arranged on opposite side surfaces of the flow channel plate 200, respectively, and relatively small refrigeration components such as the liquid storage drying tank 400 and the electronic expansion valve 300 can be arranged on the same side surface or other surface of the flow channel plate 200. Those skilled in the art can flexibly adjust the distribution and number of each refrigeration component on different surfaces of the flow channel plate 200 according to the specific module structure design and component size, so as to realize the optimal compact layout of the module structure.

[0059] Arranging the compressor 100 and the water-cooled condenser 500, the liquid storage drying tank 400, the electronic expansion valve 300, and the battery cooling heat exchanger 600 and other refrigeration components on different surfaces of the flow channel plate 200 can effectively optimize the structural layout of the module, reduce the planar size and overall volume of the module, and improve the integration and compactness of the module, so as to better meet the needs of automobile thermal management systems for miniaturization and light weight.

[0060] In some embodiments, the flow channel plate 200 is provided with an isolation structure 240 arranged between the liquid storage drying tank 400 and the battery cooling heat exchanger 600 for heat insulation. In the present embodiment, the isolation structure 240 refers to a structural design arranged on the flow channel plate 200 for hindering or weakening heat transfer. In the present embodiment, the heat transfer that needs to be insulated mainly refers to heat conduction through the material of the flow channel plate 200 itself. During the operation of the R290 thermal management integrated module, different refrigeration components have different operating temperatures. Generally, the water-cooled condenser 500 and the liquid storage drying tank 400 are at a relatively high operating temperature, while the electronic expansion valve 300 and the battery cooling heat exchanger 600 are at a relatively low operating temperature. Since the flow channel plate 200 is usually made of a metal material (such as aluminum alloy) with good thermal conductivity, if the flow channel plate 200 is not specially designed for heat insulation, heat transfer from the high-temperature component (such as the liquid storage drying tank 400) to the low-temperature component (such as the battery cooling heat exchanger 600) through the material of the flow channel plate 200 may occur, i.e., the phenomenon of "system heat leakage" occurs. This heat leakage phenomenon can reduce the refrigeration efficiency of the battery cooling heat exchanger 600, and even affect the battery cooling effect, while also increasing the system energy consumption and reducing the overall refrigeration performance. In order to solve the above technical problems, the present embodiment is provided with the isolation structure 240 on the flow channel plate 200, which increases the thermal resistance between the liquid storage drying tank 400 and the battery cooling heat exchanger 600 by arranging structures such as notches, grooves, through holes or low-thermal-conductivity material inserts on the material of the flow channel plate 200 between the liquid storage drying tank 400 and the battery cooling heat exchanger 600, thereby blocking or weakening the heat conduction path of the material of the flow channel plate 200 itself, effectively reducing the heat transfer between the two, achieving heat management of the flow channel plate 200 itself, and improving the system thermal management performance.

[0061] The isolation structure 240 can be a notch or groove arranged on the flow channel plate 200. By cutting notches or grooves on the flow channel plate 200, the material thickness of the flow channel plate 200 between the liquid storage drying tank 400 and the battery cooling heat exchanger 600 is reduced or the material connection is directly cut off, forming an area with high thermal resistance to hinder heat transfer. In other embodiments, the isolation structure 240 can also be a through hole arranged on the flow channel plate 200, or a low-thermal-conductivity material insert in a specific area of the flow channel plate 200, but is not limited thereto. Those skilled in the art can flexibly select the appropriate form of the isolation structure 240 according to the specific module structure and thermal management requirements, as long as it can effectively increase the thermal resistance between the liquid storage drying tank 400 and the battery cooling heat exchanger 600 and reduce heat transfer.

[0062] The isolation structure 240 is arranged on the flow channel plate 200 and between the liquid storage drying tank 400 and the battery cooling heat exchanger 600, which can effectively block or weaken the heat conduction path of the material of the flow channel plate 200, reduce the heat channeling phenomenon of the system, make the battery cooling heat exchanger 600 better play the refrigeration effect, and improve the overall refrigeration performance and energy efficiency level of the R290 thermal management integrated module.

[0063] In some embodiments, O-rings are used for sealing between the flow channel plate 200 and the compressor 100, the water-cooled condenser 500, the liquid storage drying tank 400, the electronic expansion valve 300, and the battery cooling heat exchanger 600. In this embodiment, O-rings are arranged as sealing elements at the connection interfaces between the flow channel plate 200 and each refrigeration component such as the compressor 100, the water-cooled condenser 500, the liquid storage drying tank 400, the electronic expansion valve 300, and the battery cooling heat exchanger 600, to achieve sealed connection between the flow channel plate 200 and each refrigeration component. The O-ring sealing can effectively prevent refrigerant leakage and ensure the sealing and safety of the R290 thermal management integrated module. R290 is a flammable refrigerant, and its leakage may cause safety hazards. Therefore, in the R290 refrigeration system, refrigerant leakage control is a crucial design consideration. The use of mature and reliable O-ring sealing technology can effectively prevent refrigerant leakage from the connection interface between the flow channel plate 200 and each component, reduce the risk of R290 refrigerant leakage, and improve the safety of the system.

[0064] The O-ring sealing structure is simple, easy to install and maintain, and is conducive to improving the assembly efficiency and maintainability of the module. Compared with other complex sealing structures, the O-ring sealing only needs to set an O-ring groove at the connection part, place the O-ring in the groove, and then press the component and the flow channel plate 200 tightly through bolt fastening or other methods to achieve sealing. The assembly process is simple and fast, and maintenance and replacement are also very convenient. In addition, the manufacturing cost of the O-ring sealing is relatively low, which is conducive to controlling the overall manufacturing cost of the module.

[0065] The material of the O-ring is preferably a rubber material resistant to R290 refrigerant, such as nitrile rubber, hydrogenated nitrile rubber, or fluororubber, but is not limited thereto. As long as the rubber material can meet the requirements of resistance to R290 refrigerant corrosion, resistance to high and low temperature, good elasticity, and sealing performance, it can be used. In other embodiments, according to different sealing requirements and cost considerations, other forms of sealing methods can also be used between the flow channel plate 200 and each refrigeration component, such as gasket sealing, sealant sealing, or metal sealing, to simplify the structure, reduce the cost, facilitate assembly and maintenance as much as possible under the premise of ensuring sealing performance and reliability.

[0066] O-rings are used to seal the flow channel plate 200, the compressor 100, the water-cooled condenser 500, the electronic expansion valve 300, and the battery cooling heat exchanger 600, which can effectively prevent refrigerant leakage, ensure the sealing and safety of the R290 thermal management integrated module, and have the advantages of simple structure, easy assembly, low cost, etc., which is conducive to improving the overall practicality and market competitiveness of the module.

[0067] In some embodiments, the thermal management integrated module further comprises a pressure and temperature sensor and a thermal management system controller arranged on the flow channel plate 200. In this embodiment, the pressure and temperature sensor refers to a sensor device that can measure the pressure and temperature of the measured medium simultaneously, i.e. a PT sensor. The pressure and temperature sensor is used to monitor the refrigerant pressure and temperature parameters at key positions of the R290 refrigeration system in real time, and convert the measurement results into electrical signals for output to facilitate data acquisition and processing by the control system. The thermal management system (TMS) controller refers to an electronic control unit. The thermal management system controller is used to receive signals from sensors such as the pressure and temperature sensor, and intelligently monitor and adjust the operating state of the thermal management integrated module according to the pre-set control strategy and algorithm, such as controlling the opening of the electronic expansion valve 300 and the operating frequency of the compressor 100.

[0068] In some embodiments, the compressor 100, the water-cooled condenser 500, the liquid storage and drying tank 400, the electronic expansion valve 300, the battery cooling heat exchanger 600, the pressure and temperature sensor, and the thermal management system controller are arranged on the flow channel plate 200 by bolt connection. Bolt connection is a method of connecting two or more components together by using bolts, nuts, and other fasteners. By tightening the nuts, a pre-tightening force is generated to produce sufficient friction between the connected parts, thereby achieving reliable connection. Bolt connection has the advantages of high connection strength, good reliability, easy disassembly, and strong versatility. First, bolt connection can provide reliable mechanical fixation, ensuring that the refrigeration components and control components are stably connected to the flow channel plate 200 during module operation, without loosening or falling off, thereby ensuring the structural strength and operational reliability of the module. Especially in harsh vibration environments such as automotive thermal management systems, bolt connection can better ensure the structural stability of the module. Second, the bolt connection method makes the assembly and disassembly of the module very convenient, which is conducive to improving the production efficiency and maintenance convenience of the module. During module assembly, only the components need to be aligned with the mounting hole positions on the flow channel plate 200, and the assembly can be completed by tightening the bolts, which is simple and fast. When the module needs to be maintained or replaced, the components can be easily disassembled by unscrewing the bolts, without the need for complex disassembly tools and steps, which greatly simplifies the maintenance operation and reduces the maintenance cost. In addition, as a general mechanical connection method, bolt connection has a relatively low manufacturing cost, which is conducive to controlling the overall manufacturing cost of the module.

[0069] The compressor 100, the water-cooled condenser 500, the liquid storage drying tank 400, the electronic expansion valve 300, the battery cooling heat exchanger 600, the pressure and temperature sensor and the thermal management system controller and the like are arranged on the flow channel plate 200 in a bolted manner, so that the components can be quickly assembled and conveniently disassembled under the premise of guaranteeing the structural strength and operation reliability of the module, and the production efficiency of the module is improved, the maintenance cost is reduced, and the overall practicability and engineering application value of the module are improved.

[0070] The utility model embodiment further provides a kind of propane refrigeration system, including the heat management integrated module for refrigerant side described above.In the utility model embodiment, propane refrigeration system refers to a kind of refrigeration system with propane (R290) as refrigerant, and its basic component usually includes compressor, condenser, expansion valve, evaporator and the pipeline connected these components, etc., by the circulation flow and phase change process of refrigerant inside system, realize refrigeration purpose.Propane refrigeration system as a kind of environmental protection type refrigeration technology using natural working medium refrigerant, in recent years, in air conditioning, heat pump, refrigeration and other fields, more and more attention and application are received.The innovative heat management integrated module provided in the foregoing embodiment integrates multiple key refrigeration components in R290 refrigeration system on integrated flow channel plate, and has the advantages of low leakage, high integration, compact structure, excellent thermal management performance and the like.

[0071] The heat management integrated module provided by the utility model can be used as a functional component in propane refrigeration system, replace multiple refrigeration components and connecting pipelines arranged dispersedly in traditional propane refrigeration system, realize high integration and modularization of refrigeration system.Specifically, in propane refrigeration system, the heat management integrated module of the utility model is used, can integrate the components such as compressor, water-cooled condenser, liquid storage drying tank, electronic expansion valve and battery cooling heat exchanger in traditional system as a whole, and cancel the refrigerant pipeline connection between components, thereby significantly reduce refrigerant leakage point, greatly improve the safety of propane refrigeration system.At the same time, the compact structure design of integrated module is also beneficial to reduce the overall volume of propane refrigeration system, reduce refrigerant charge, and improve the installation and maintenance convenience of system.In addition, the flow channel plate isolation structure 240, circular cross-section flow channel and smooth curve flow channel path and the like optimization design used in some integrated module embodiments can also improve the thermal management performance and refrigeration efficiency of propane refrigeration system.

[0072] It should be noted that the propane refrigeration system provided by the utility model is not limited to containing the above-mentioned heat management integrated module, and the propane refrigeration system can also include other components that are conventional and necessary for a refrigeration system, for example: a water pump for driving the circulation of the cooling liquid, a cooling fan for heat dissipation, an interface for connecting the cooling liquid pipeline, an electric control unit for controlling the operation of the system, and various sensors and protection devices for protecting the safe operation of the system, but not limited thereto. Those skilled in the art can select and configure other components of the propane refrigeration system according to the specific application scene and system function requirement, as long as the heat management integrated module for the refrigerant side provided by the utility model is used in the system, the technical purpose of the utility model can be achieved, and the corresponding technical effect can be obtained.

[0073] The propane refrigeration system of the embodiment can fully exert the advantages of the heat management integrated module in safety, integration, compactness, heat management performance and the like, so that the propane refrigeration system has higher safety, smaller size, better performance and more convenient maintenance, thereby better meeting the market and user demand and promoting the wide application of the environmentally friendly refrigerant propane in the refrigeration field.

[0074] The utility model embodiment further provides a vehicle, including above-mentioned heat management integrated module for refrigerant side. In the utility model embodiment, vehicle refers to various types of land vehicles, including but not limited to: passenger car, commercial vehicle, engineering vehicle, special vehicle etc., preferably new energy vehicle, for example pure electric vehicle (BEV), plug-in hybrid electric vehicle (PHEV) or fuel cell vehicle (FCEV) etc.. New energy vehicle due to the particularity of its power system, puts forward higher requirement to heat management system, not only needs to meet the demand of cabin air conditioner refrigeration / heating, also needs to carry out efficient, reliable heat management to power battery, motor, electric control system and other key components, to guarantee the vehicle's range, power performance, service life and safety.

[0075] The heat management integrated module provided in the foregoing embodiments uses propane (R290) as a refrigerant and integrates multiple key components in a refrigeration system, and has the advantages of low leakage, high integration, compact structure, excellent heat management performance, etc. The heat management integrated module is applied to a vehicle, especially a new energy vehicle, to provide efficient and reliable refrigeration capacity for the vehicle, meeting the refrigeration requirements of the vehicle cabin air conditioning system and the power battery cooling system. In particular, in a new energy vehicle, the temperature control of the power battery is crucial to the performance, service life, and safety of the battery. The heat management integrated module can provide precise and stable refrigeration for the battery cooling system, ensuring that the battery operates within an optimal temperature range and improving the performance and safety of the battery. Secondly, since the heat management integrated module uses R290, a natural working medium refrigerant, which has a very low global warming potential (GWP) value, much lower than traditional HFC refrigerants, the application of the heat management integrated module to a vehicle helps to improve the environmental performance of the vehicle and meets the green and low-carbon development trend of the automotive industry. Thirdly, the compact structure and small size of the integrated module make it easy to arrange and install in the limited space of a vehicle, especially suitable for new energy vehicles that have high space utilization requirements. The low leakage feature of the module also improves the safety of the vehicle and reduces the safety risks caused by R290 refrigerant leakage. In addition, the intelligent control function and excellent heat management performance of the integrated module also help to improve the overall performance and user experience of the vehicle.

[0076] It should be noted that the vehicle provided by the present application is not limited to using the heat management integrated module for the refrigerant side for refrigeration. In some embodiments, the heat management system of the vehicle can adopt multiple forms of heat management circuits, such as refrigerant circuits and cooling liquid circuits, to realize the heat exchange function of the refrigerant side using the heat management integrated module, and to cool or heat the battery, motor, and other components through the cooling liquid circuit, but not limited to this. Those skilled in the art can flexibly configure the heat management system of the vehicle according to the specific vehicle type, heat management requirements, and system architecture, as long as the vehicle uses the heat management integrated module for the refrigerant side provided by the present application as a component of its heat management system, the technical purpose of the present application can be achieved, and the corresponding technical effects can be obtained, improving the performance and environmental advantages of the vehicle.

[0077] The vehicle containing the heat management integrated module for the refrigerant side of the present application can fully utilize the advantages of the heat management integrated module in environmental protection, safety, integration, compactness, heat management performance, etc., making the vehicle have better environmental performance, higher safety and reliability, more compact structure layout, and better overall performance, especially suitable for the new energy vehicle field which has high requirements for environmental protection and energy efficiency.

[0078] The above is further detailed description of the utility model in combination with specific preferred embodiments, and cannot be deemed as limitation of the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them shall be deemed as belonging to the protection scope of the utility model.

Claims

1. A thermal management integrated module for the refrigerant side, applied to a propane refrigeration system, characterized in that, include: Flow channel plate; The compressor is installed on the flow channel plate; A water-cooled condenser is installed on the flow channel plate, the refrigerant inlet of the water-cooled condenser is connected to the exhaust port of the compressor, and the refrigerant outlet of the water-cooled condenser is connected to the inlet of the first flow channel on the flow channel plate; A liquid storage and drying tank is disposed on the flow channel plate. The refrigerant inlet of the liquid storage and drying tank is connected to the outlet of the first flow channel, and the refrigerant outlet of the liquid storage and drying tank is connected to the inlet of the second flow channel on the flow channel plate. An electronic expansion valve is installed on the flow channel plate, the refrigerant inlet of the electronic expansion valve is connected to the outlet of the second flow channel, and the refrigerant outlet of the electronic expansion valve is connected to the inlet of the third flow channel on the flow channel plate. And a battery cooling heat exchanger disposed on the flow channel plate, wherein the refrigerant inlet of the battery cooling heat exchanger is connected to the outlet of the third flow channel, and the refrigerant outlet is connected to the suction port of the compressor. The first flow channel, the second flow channel, and the third flow channel are all disposed inside the flow channel plate, and the first flow channel, the second flow channel, and the third flow channel are independent of each other.

2. The thermal management integrated module according to claim 1, characterized in that, The first flow channel, the second flow channel, and the third flow channel are circular cross-section flow channels.

3. The integrated thermal management module for the refrigerant side according to claim 2, characterized in that, The circular cross-section flow channel extends in a smooth curve within the plane of the flow channel plate, and the smooth curve extension path does not contain any acute or right-angle bends.

4. The integrated thermal management module for the refrigerant side according to claim 2, characterized in that, The diameter of the circular cross-section is 16 mm to 18 mm.

5. The integrated thermal management module for the refrigerant side according to claim 1, characterized in that, The compressor, the water-cooled condenser, the liquid storage drying tank, the electronic expansion valve, and the battery cooling heat exchanger are arranged on different sides of the flow channel plate.

6. The integrated thermal management module for the refrigerant side according to claim 1, characterized in that, An isolation structure is provided on the flow channel plate, which is located between the liquid storage drying tank and the battery cooling heat exchanger to isolate heat transfer.

7. The integrated thermal management module for the refrigerant side according to claim 6, characterized in that, The isolation structure is a notch or groove on the flow channel plate between the second flow channel and the third flow channel.

8. The integrated thermal management module for the refrigerant side according to claim 1, characterized in that, The flow channel plate is sealed with O-rings to the compressor, the water-cooled condenser, the liquid storage drying tank, the electronic expansion valve, and the battery cooling heat exchanger.

9. The thermal management integrated module according to claim 1, characterized in that, It also includes a pressure and temperature sensor and a thermal management system controller mounted on the flow channel plate.

10. The integrated thermal management module for the refrigerant side according to claim 9, characterized in that, The compressor, the water-cooled condenser, the liquid storage drying tank, the electronic expansion valve, the battery cooling heat exchanger, the pressure and temperature sensor, and the thermal management system controller are bolted together on the flow channel plate.

11. A propane refrigeration system, characterized in that, Includes the thermal management integrated module for the refrigerant side as described in any one of claims 1-10.

12. A vehicle, characterized in that, Includes the thermal management integrated module for the refrigerant side as described in any one of claims 1-10.

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