CN221819836U - Thermal management equipment, system and vehicle with system - Google Patents

Abstract

The utility model discloses a thermal management device, a system and a vehicle with the system, wherein the thermal management device comprises a bottom plate; the compressor is arranged on the bottom plate; the plate exchange assembly is arranged on the bottom plate in parallel with the compressor and is used for heat exchange between the refrigerant and the external liquid medium; the water side assembly is used for guiding external liquid medium into the plate exchange assembly, and is arranged above the compressor and the plate exchange assembly; wherein the plate changing assembly is integrated with the compressor. According to the technical scheme, the plate exchange assembly and the compressor are arranged in parallel, so that the plate exchange assembly and the compressor are integrated into a whole, the application of most of external pipelines is further reduced, the total volume of a refrigerant flow path is greatly reduced, the refrigerant filling amount required by the whole heat management equipment is reduced, and the safety requirement of flammable refrigerants is met.

Description

Thermal management device, system and vehicle having the same

Technical Field

The utility model relates to the field of thermal management, and in particular to a thermal management device, a system and a vehicle with the system.

Background Art

With the application of flammable refrigerants such as propane, the amount of refrigerant (coolant) added needs to be limited to meet safety requirements. When the volume of refrigerant added is reduced, the volume of refrigerant required in the relevant equipment also needs to be reduced to meet safety requirements.

Utility Model Content

The main purpose of the utility model is to provide a thermal management device, aiming to reduce the volume of refrigerant that needs to be filled in the thermal management device.

To achieve the above-mentioned purpose, the thermal management device proposed by the utility model comprises:

Base plate;

A compressor, the compressor being arranged on the bottom plate;

A plate exchange assembly, the plate exchange assembly and the compressor are arranged on the bottom plate in parallel, and the plate exchange assembly is used for heat exchange between the refrigerant and the external liquid medium;

A water side component, the water side component is used to introduce external liquid medium into the plate exchange component, and the water side component is arranged above the compressor and the plate exchange component;

Wherein, the plate exchange assembly is integrated with the compressor.

Optionally/in one embodiment, the plate exchange assembly includes a condenser and an evaporator, the compressor is arranged on the same side of the condenser and the evaporator, the condenser is communicated with the air outlet end of the compressor, and the evaporator is communicated with the air inlet end of the compressor.

Optionally/in one embodiment, the condenser is fixedly connected to the evaporator.

Optionally/in one embodiment, a heat insulating hollow is provided between the condenser and the evaporator.

Optionally/in one embodiment, a liquid reservoir is provided between the compressor and the plate exchange assembly, the liquid reservoir is used to store liquid refrigerant, and the liquid reservoir has a curved surface that fits with the outer wall of the compressor and a mounting surface that fits with the plate exchange assembly.

Optionally/in one embodiment, the refrigerant enters the condenser after being compressed by the compressor, enters the liquid reservoir after being condensed by the condenser, and then the liquid reservoir re-introduces the liquid refrigerant into the condenser.

Optionally/in one embodiment, a connecting pipe is provided on the side of the condenser away from the compressor, and the connecting pipe is used to introduce liquid refrigerant into the evaporator. A first expansion valve is provided on the end of the connecting pipe located on the evaporator.

Optionally/in one embodiment, the outer shell of the compressor is protruded to form a first return channel and a second return channel, the first return channel is used to introduce the refrigerant in the evaporator into the air inlet end of the compressor, and the second return channel is used to introduce the refrigerant at the air outlet end of the compressor into the air inlet end of the compressor.

Optionally/in one embodiment, the second return channel is provided with a second expansion valve, and the second expansion valve is used to control the flow rate of the refrigerant in the second return channel.

Optionally/in one embodiment, the water side component includes a multi-channel flow plate and an expansion pot, the multi-channel flow plate is arranged above the plate changer assembly, the expansion pot is arranged above the multi-channel flow plate, the expansion pot is used to accommodate external liquid medium, the multi-channel flow plate has a plurality of flow channels on the side facing away from the plate changer assembly, some of the flow channels are used to introduce external liquid medium into the condenser and/or the evaporator, and at least one of the plurality of flow channels is communicated with the expansion pot.

Optionally/in one embodiment, a plurality of feet are arranged at intervals on the outer edge of the multi-channel flow plate, and ends of the feet are fixed to the compressor or the plate change assembly, and an installation space is formed between the side of the multi-channel flow plate facing the plate change assembly and the plate change assembly.

Optionally/in one embodiment, a multi-way valve is provided in the installation space, the multi-way valve is connected to the plurality of flow channels, and the multi-way valve is used to control the flow direction of the external refrigerant in the multi-channel flow channel plate.

Optionally/in one embodiment, a condensate pump is provided in the installation space, and the condensate pump is used to pump external liquid medium into the condenser, and the condensate pump is connected to at least one of the flow channels.

Optionally/in one embodiment, an evaporation water pump is provided in the installation space, the evaporation water pump is used to pump external liquid medium into the evaporator, and the evaporation water pump is connected to at least one of the flow channels.

Optionally/in one embodiment, a third water pump is provided in the installation space, the third water pump is connected to the expansion pot, and the third water pump is used to pump external liquid medium into or out of the expansion pot.

Optionally/in one embodiment, the thermal management device also includes a protective cover, the protective cover is sealed, the compressor and the plate exchange assembly are arranged in the protective cover, and the multi-channel flow plate is sealed at the top of the protective cover and is connected to the plate exchange assembly.

Optionally/in one embodiment, a sensor is provided in the protective cover, and the sensor is used to detect refrigerant leakage.

Optionally/in one embodiment, the base plate is provided with a plurality of support members.

Optionally/in one embodiment, a control component is provided at one end of the compressor, and the control component is used to control the compressor, the first expansion valve, the second expansion valve and the water side component.

The utility model also provides a thermal management system, comprising the thermal management device mentioned above.

The utility model also provides a vehicle, comprising the thermal management system.

The technical solution of the utility model integrates the plate changer assembly and the compressor into one by arranging them in parallel, thereby reducing the use of most external pipelines, greatly reducing the total volume of the refrigerant flow path, and reducing the refrigerant filling amount required for the overall thermal management equipment, thereby meeting the safety requirements of flammable refrigerants.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of the overall structure of the thermal management device of the utility model, wherein the protective cover is transparently arranged to show the overall assembly structure;

FIG2 is a schematic diagram of the overall structure of the water side assembly;

FIG3 is a schematic diagram of the structure of the compressor and the plate exchange assembly;

FIG4 is a schematic structural diagram of the compressor and the plate exchange assembly from another perspective;

FIG5 is a schematic diagram of the structure of a plate replacement assembly;

FIG6 is a cross-sectional view of the condenser.

Description of Figure Numbers:

Label name Label name 1 compressor 22c Water side inlet 11 Integrated controller 22d Water side outlet 12 The first return channel twenty three Reservoir 13 Second return channel twenty four Connecting pipe 14 Buffer chamber 25 Insulation gap 15 Second expansion valve 26 First expansion valve 2 Board replacement components 3 Water side components twenty one Condenser 31 Multi-channel manifold 21a Condensation inlet 31a Runner 21b Condensation outlet 31b Feet 21c Supercooled inlet 32 Expansion pot 21d Subcooling outlet 33 Multi-way valve 21e Water cooling inlet 35 Condensate pump 21f Water cooling outlet 36 Evaporation water pump 211 Divider 37 The third water pump twenty two Evaporator 4 Protective cover 22a Agent side inlet 41 Base Plate 22b Agent side outlet 42 Side panels

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

DETAILED DESCRIPTION

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

It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and/or" appearing in the full text is to include three parallel solutions, taking "A and/or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

With the changes in automobile energy sources and driving methods, new energy (electric) vehicles have gradually become one of the mainstreams in the market; new energy vehicles have the advantages of high integration, high intelligence and high electronic control. Compared with traditional fuel vehicles, new energy vehicles have a better hardware foundation to meet the Internet of Things and artificial intelligence technologies that may be completed in the future.

However, there are still many engineering problems behind new energy vehicles. For example, when new energy vehicles are running, the battery will release a lot of heat while supplying power to the entire vehicle, so the battery needs to be thermally managed to avoid overheating. Similarly, the motor will generate a lot of heat when it is powered on and rotates, so the motor also needs thermal management. Furthermore, considering the different scenarios that the car may face, the battery discharge process may also be greatly affected in low temperature environments. In general, new energy vehicles, like fuel vehicles, require thermal management to ensure the normal operation of the vehicle as a whole.

However, with the application of flammable refrigerants such as propane, the amount of refrigerant (coolant) added needs to be limited to meet safety requirements. After the volume of refrigerant added is limited, the volume of refrigerant added in related equipment also needs to be controlled to meet safety standards.

1 and 2 , based on the above description, the utility model proposes a thermal management device with a highly integrated feature, thereby being able to reduce the volume of the required refrigerant and meet the current safety regulations for the refrigerant. Specifically, the thermal management device proposed in the utility model includes a compressor 1 and a plate exchange assembly 2; the compressor 1 and the plate exchange assembly 2 are arranged in parallel on a base plate 41, and the base plate 41 is used to receive the compressor 1 and the plate exchange assembly 2; the compressor 1 is used to pressurize the refrigerant, and the pressurized refrigerant will pass through the plate exchange assembly 2 to exchange heat with the interior or the outside of the vehicle, thereby completing the heat exchange process; wherein, the plate exchange assembly 2 includes a condenser 21 and an evaporator 22, the condenser 21 and the evaporator 22 have similar thicknesses, the condenser 21 and the evaporator 22 are arranged side by side, that is, the thickness directions of the condenser 21 and the evaporator 22 are parallel; the compressor 1 is arranged on one side of the plate exchange assembly 2, that is, the compressor 1 is located on the same side of the condenser 21 and the evaporator 22, so that the projection of the compressor 1 in the thickness direction of the condenser 21 and the evaporator 22 can cover the condenser 21 or cover part of the condenser 21, and at the same time cover the evaporator 2 2 or covers part of the evaporator 22, so that the condenser 21, the evaporator 22 and the compressor 1 can be arranged in a shape similar to the Chinese character "品"; and the refrigerant pressurized by the compressor 1 will pass through the condenser 21 and the evaporator 22 in turn to complete heat exchange with the inside or outside of the vehicle, and then return to the compressor 1 through the evaporator 22; thus, the side-by-side arrangement of the condenser 21 and the evaporator 22 can maximize the reduction of the length of the pipeline required for the refrigerant to flow between the condenser 21 and the evaporator 22, thereby greatly reducing the volume of the refrigerant flow path, that is, reducing the volume of the refrigerant required to be added to the thermal management device; in addition, since the compressor 1 is directly arranged on one side of the plate exchange assembly 2, the condenser 21 can be directly connected to the outlet end of the compressor 1, and the evaporator 22 can be directly connected to the inlet end of the compressor 1, which can further reduce the volume required for the refrigerant during the circulation process and improve the safety of the overall structure.

4 and 5 , in the present invention, the compressor 1 is a horizontal compressor 1 , and thus the compressor 1 has two ends, namely an air inlet end and an air outlet end. The condenser 21 is connected to the air outlet end of the compressor 1 , and the evaporator 22 is connected to the air inlet end of the compressor 1 ; at the same time, in order to control the operation of the compressor 1 , a control component may be provided at one of the two ends of the compressor 1 to control the operation of the overall device.

It should be noted that in the present invention, in order to further reduce the volume of the thermal management device, the condenser 21 and the evaporator 22 are directly fixedly connected, and only an insulating gap 25 is retained between the condenser 21 and the evaporator 22 to avoid direct heat exchange between the two; the condenser 21 and the evaporator 22 can be directly welded together, or fixedly connected by bolts and rivets; there are various fixing methods between the condenser 21 and the evaporator 22, which will not be repeated here.

3 and 4 , in the present invention, taking into account that the refrigerant will undergo a phase change after being compressed by the compressor 1 and condensed by the condenser 21, that is, the refrigerant will undergo a phase change from a gas phase to a liquid phase after being compressed by the compressor 1 and condensed by the condenser 21, the present invention further provides a liquid reservoir 23 between the plate exchanger assembly 2 and the compressor 1, and the liquid reservoir 23 is used to receive the refrigerant condensed by the condenser 21; the provision of the liquid reservoir 23 enables the overall device to automatically adjust the volume of the refrigerant present in the overall device according to the flow rate of the refrigerant in the overall device, so that the flow volume of the refrigerant can also be increased when the compressor 1 is running at full power, thereby ensuring the heat exchange efficiency of the overall structure.

Specifically, after the high-pressure refrigerant generated at the outlet end of the compressor 1 enters the condenser 21, it will exchange heat with the external liquid medium in the condenser 21, and the high-pressure refrigerant will transfer the heat to the external liquid medium, and then the external liquid medium will transfer the heat to the outside or other vehicle systems; when the high-pressure refrigerant is condensed, it will change into a liquid phase, and the liquid phase refrigerant will enter the liquid reservoir 23. At this time, the liquid reservoir 23 will also distinguish between liquid refrigerant and gaseous refrigerant; then the liquid refrigerant will enter the evaporator 22 through the liquid reservoir 23, and then heat exchange will occur again in the evaporator 22, and the liquid refrigerant will absorb the heat brought by the external liquid medium and evaporate, that is, the liquid refrigerant evaporates and absorbs heat, and the refrigerant after absorbing heat will return to the air intake end of the compressor 1 and be compressed and pressurized by the compressor 1 again, and then the above cycle will be repeated.

Referring to Figures 3 and 4, correspondingly, a desiccant and a filter can be arranged inside the liquid reservoir 23 to dry and filter the refrigerant; the desiccant is a molecular sieve or organic silica gel. Specifically, the advantage of organic silica gel is that when it absorbs water to a saturated state, there will be no changes in the surface and morphology, and it absorbs moisture quickly, is non-toxic, odorless, has a large internal surface area, and also has a high adsorption capacity for water vapor and other condensable vapors; molecular sieves have a strong affinity for water, resulting in a very high drying efficiency when used as a desiccant; such a setting can ensure that the drying mechanism has a high adsorption effect on the moisture in the refrigerant. In some other embodiments, the desiccant is activated alumina. The liquid reservoir 23 has an arc surface matching the shape of the compressor 1 shell and a mounting surface fitting the plate change assembly 2, so that the liquid reservoir 23 can be fixed between the compressor 1 and the plate change assembly 2; specifically, the liquid reservoir 23 can be directly welded between the compressor 1 and the plate change assembly 2, that is, the arc surface of the liquid reservoir 23 is welded to the shell of the compressor 1 and the fitting surface of the liquid reservoir 23 is welded to the plate change assembly 2; the liquid reservoir 23 can also be fixed between the plate change assembly 2 and the compressor 1 by fixing forms such as bolts and rivets; the fixed setting of the liquid reservoir 23 can further reduce the volume of the overall equipment, thereby completing the control of the amount of refrigerant added and achieving safety standards.

4 and 5, in the present invention, the condenser 21 has a condensation inlet 21a, a condensation outlet 21b, a subcooling inlet 21c, a subcooling outlet 21d, a water cooling inlet 21e and a water cooling outlet 21f; specifically, the condensation inlet 21a is directly connected to the air outlet of the compressor 1, so that the refrigerant pressurized by the compressor 1 can directly enter the condenser 21; after the refrigerant is condensed by the condenser 21, it enters the liquid reservoir 23 through the condensation outlet 21b; and since the liquid reservoir 23 is directly fixedly connected to the condenser 21, the refrigerant can directly The liquid enters the liquid reservoir 23 through the condensation outlet 21b; it should be noted that, in order to minimize the gap between the liquid reservoir 23 and the condenser 21, the condensation outlet 21b can be made to protrude to form an embedded portion, so that when the liquid reservoir 23 is installed, the embedded portion can be embedded in the liquid reservoir 23, thereby completing the connection between the two; similarly, the liquid reservoir 23 can also be made to protrude to form an embedded portion, and the embedded portion can be embedded in the condenser 21; this setting can minimize the gap between the condenser 21 and the liquid reservoir 23, so that the fitting surface of the liquid reservoir 23 fits with the side wall of the condenser 21. In addition, one or more sealing rings can be set on the embedded portion to improve the sealing between the condenser 21 and the liquid reservoir 23 and reduce the possibility of refrigerant leakage.

The water cooling inlet 21e and the water cooling outlet 21f on the condenser 21 are respectively used to import and export external liquid media into and out of the condenser 21; wherein, the external liquid media can be the antifreeze on the vehicle; but it should be noted that the antifreeze entering the condenser 21 is an antifreeze at a lower temperature, such as antifreeze that has been air-cooled; when the refrigerant passes through the condenser 21, heat exchange will occur between the refrigerant and the external liquid media, that is, the heat of the refrigerant will be transferred to the antifreeze; thus, when the vehicle is in a relatively low temperature environment, the antifreeze that has absorbed the heat of the refrigerant can be directed to the vehicle's heating system or battery insulation system, etc., so that the vehicle components can reach the operating temperature as soon as possible or the passenger space can reach a comfortable temperature, thereby improving the utilization rate of heat.

The subcooling inlet 21c on the condenser 21 is also connected to the liquid reservoir 23. When the refrigerant in the condenser 21 enters the liquid reservoir 23, the refrigerants of different phases will be separated in the liquid reservoir 23, and the liquid reservoir 23 will store the refrigerant at the same time; the liquid reservoir 23 will re-introduce the liquid refrigerant into the condenser 21, and the liquid refrigerant will continue to exchange heat with the external liquid medium in the condenser 21 to further reduce the temperature, and then be discharged through the subcooling outlet 21d on the condenser 21.

In the present invention, the condenser 21 is a plate heat exchanger, and the subcooling outlet 21d of the condenser 21 is provided on the surface of the condenser 21 away from the compressor 1. In the present embodiment, the level of the subcooling outlet 21d is higher than the subcooling inlet 21c, so that when the liquid refrigerant enters the condenser 21, its flow path will be extended, and the heat exchange time will also be extended, further reducing the temperature of the liquid refrigerant after flowing out of the condenser 21; in other embodiments, the positional relationship between the subcooling inlet 21c and the subcooling outlet 21d can also be redesigned to meet different heat exchange requirements.

4 and 5, the subcooling outlet 21d is provided with a connecting pipe 24, which is used to introduce the liquid refrigerant flowing out of the subcooling outlet 21d into the evaporator 22; accordingly, the evaporator 22 has an agent side inlet 22a, and the connecting pipe 24 is used to guide the subcooling outlet 21d and the agent side inlet 22a. The evaporator 22 also has a water side inlet 22c and a water side outlet 22d for introducing external liquid medium. The refrigerant and the external liquid medium complete heat exchange in the evaporator 22, but unlike the condenser 21, the heat of the external liquid medium is transferred to the refrigerant in the evaporator 22, so that the refrigerant absorbs heat and evaporates.

Referring to Figure 6, it should be noted that the evaporator 22 and the condenser 21 are both plate-type heat exchangers; in the utility model, the plate-type heat exchanger has stacked partition plates 211, and there is a gap between two adjacent partition plates 211 for the flow of refrigerant or external liquid medium, and the liquids flowing through the two opposite sides of each partition plate 211 are different; for example, if one side of a partition plate 211 flows with refrigerant, then the other side must be external liquid medium, so that the refrigerant and the external liquid medium can be separated to avoid mixing while exchanging heat through the partition plate 211, thereby completing heat exchange. In addition, to put it simply, the two ends of the partition plate 211 are respectively sealed and connected with the other two partition plates 211 on the opposite sides, that is, after one end of a partition plate 211 is sealed and connected with the end of a partition plate 211 on one side in the same direction, the other end of this partition plate 211 must be sealed and connected with the end of another partition plate 211 on the other side in the same direction; thus, when a certain liquid medium flows on one side of the partition plate 211, the liquid medium is only restricted to flow on this side. The arrangement of the partition plate 211 can increase the contact area between the two heat transfer media in an isolated environment, thereby greatly improving the heat exchange efficiency between the two heat transfer media.

Furthermore, it should be emphasized in the present invention that the subcooling inlet 21c and the condensing outlet 21b on the condenser 21 are on the same side of the condenser 21, and the subcooling outlet 21d is on the other side of the condensing inlet 21a; thus, the refrigerant needs to flow through a longer path in the condenser 21, further increasing the heat exchange time and heat exchange area between the refrigerant and the external liquid medium, thereby further reducing the temperature of the refrigerant. Based on the above idea, the horizontal height of the condensing outlet 21b can be made similar to the horizontal height of the condensing inlet 21a, the horizontal height of the subcooling inlet 21c can be made similar to the horizontal height of the condensing outlet 21b, and the horizontal height of the subcooling outlet 21d can be made higher than the subcooling inlet 21c, thereby the flow path of the refrigerant in the condenser 21 will be greatly extended, further increasing the heat exchange time and heat exchange area between the refrigerant and the external liquid medium.

In the evaporator 22, the agent side inlet 22a and the agent side outlet 22b are approximately at the same horizontal height, but the agent side inlet 22a and the agent side outlet 22b are respectively located on opposite sides of the evaporator 22; similarly, the water side inlet 22c and the water side outlet 22d are also approximately at the same horizontal height, and the two are also respectively located on opposite sides of the evaporator 22; in the utility model, the agent side inlet 22a/agent side outlet 22b and the water side inlet 22c/water side outlet 22d located on the same side can be arranged along the diagonal line of the side surface of the evaporator 22, that is, the agent side inlet 22a/agent side outlet 22b and the water side inlet 22c/water side outlet 22d are respectively located at the two ends of the diagonal line, thereby increasing the flow path of the refrigerant in the evaporator 22, so that the refrigerant can more fully absorb the heat of the external liquid medium, thereby further improving the heat exchange efficiency.

However, the above description about the positional relationship of the condenser inlet 21a and the agent side inlet 22a in the condenser 21 and the evaporator 22 is for illustration only, and their specific positions can be adjusted according to factors such as actual use requirements and space design indicators.

From the perspective of the refrigerant flow path, specifically, the high-pressure refrigerant coming out of the outlet end of the compressor 1 will directly enter the condenser 21 through the condensation inlet 21a, and after releasing heat in the condenser 21, enter the liquid reservoir 23 through the condensation outlet 21b, and then the liquid refrigerant in the liquid reservoir 23 will enter the condenser 21 through the supercooling inlet 21c, and after further releasing heat, enter the evaporator 22 through the supercooling outlet 21d connecting pipe 24; in the process of refrigerant condensation, the external liquid medium continuously circulates through the water-cooling inlet 21e and the water-cooling outlet 21f to absorb the heat released by the refrigerant.

4 and 5, a first expansion valve 26 is further provided between the end of the connecting pipe 24 and the agent side inlet 22a of the evaporator 22. The first expansion valve 26 is used to control the volume of the refrigerant introduced into the evaporator 22 by the connecting pipe 24 to avoid excessive refrigerant entering the evaporator 22 per unit time. After the refrigerant enters the evaporator 22 through the agent side inlet 22a, it absorbs heat and vaporizes, and then enters the air intake end of the compressor 1 through the agent side outlet 22b. After being pressurized by the compressor 1, the above process is repeated. In the process of the refrigerant absorbing heat, the external liquid medium continuously circulates through the water side inlet 22c and the water side outlet 22d to release heat to the refrigerant.

It should be noted that, in the present invention, the compressor 1 has a shell, wherein the shell on the air inlet end forms a buffer cavity 14, and the shell also protrudes to form a first return channel 12 and a second return channel 13; the agent side outlet 22b of the evaporator 22 is connected to the first return channel 12, and the first return channel 12 and the second return channel 13 are both connected to the buffer cavity 14; the refrigerant after heat exchange in the evaporator 22 enters the buffer cavity 14 through the first return channel 12, and part of the refrigerant discharged from the air outlet of the compressor 1 enters the buffer cavity 14 through the second return channel 13, and then the two refrigerants will mix in the buffer cavity 14, so that part of the refrigerant that has not reached high temperature and pressure will flow back to the air inlet end of the compressor 1 through the second return channel 13, and will be fully mixed with the refrigerant flowing back to the compressor 1 through the agent side outlet 22b, and will be re-pressurized and heated, which will help to increase the total flow of the refrigerant flowing through the compressor 1, thereby improving the output power of the compressor 1 and improving the heating capacity of the overall equipment.

4 and 5 , in order to control the flow rate of the refrigerant returning to the compressor 1 via the second reflux channel 13, the second reflux channel 13 is provided with a second expansion valve 15. The second expansion valve 15 can control the flow rate of the refrigerant in the second reflux channel 13, thereby reducing the possibility of excessive refrigerant returning from the outlet end of the compressor 1 to the inlet end, and ensuring the smooth operation of the overall flow path.

Referring to Figures 1 and 2, specifically, in order to control the flow direction and entry and exit of the external liquid medium, the thermal management device in the utility model also includes a water side component 3, which is used to introduce the external liquid medium into the plate exchange component 2, that is, to introduce the external liquid medium into the condenser 21 and the evaporator 22, and control the flow direction of the external liquid medium in the condenser 21 and the evaporator 22, that is, to control which system of the vehicle the external liquid medium enters after heat exchange through the condenser 21 and/or the evaporator 22, so as to complete heat management.

In new energy vehicles, there are mainly battery cooling systems, electric drive cooling systems and air-conditioning systems; among them, the battery cooling system is used to cool the battery during driving of new energy vehicles, the electric drive cooling system is used to cool the electric drive during driving of new energy vehicles, and the air-conditioning system is used to regulate the temperature in the passenger compartment, which can be increased or decreased.

Therefore, the water side component 3 in the utility model includes a multi-channel flow plate 31, an expansion pot 32 and a multi-way valve 33, wherein the expansion pot 32 is used to accommodate external liquid medium, and the multi-channel flow plate 31 has multiple flow channels 31a, and the multiple flow channels 31a are used to conduct the external liquid medium flow path between the condenser 21 or the evaporator 22 and the battery cooling system, or the electric drive cooling system, or the air-conditioning system, and the multi-way valve 33 is used to control the above-mentioned conduction process.

Specifically, when the condenser 21 is connected to the battery cooling system, the refrigerant in the condenser 21 releases heat to the external liquid medium, and the external liquid medium absorbs heat and enters the battery cooling system, so that the external liquid medium can quickly heat up the battery; it is well known that the discharge efficiency and capacity of the battery of a new energy vehicle will be greatly affected under low temperature conditions. Therefore, when the condenser 21 is connected to the battery cooling system, the battery can be quickly heated up to ensure the rapid start-up and normal use of the new energy vehicle under low temperature conditions.

When the condenser 21 is connected to the electric drive cooling system, similarly, the refrigerant in the condenser 21 releases heat to the external liquid medium, and the external liquid medium absorbs heat and enters the electric drive cooling system, and then the external liquid medium can quickly heat up the electric drive to ensure the rapid start-up and normal use of the new energy vehicle under low temperature conditions.

When the condenser 21 and the air-conditioning system are connected, similarly, the refrigerant in the condenser 21 releases heat to the external liquid medium, and the external liquid medium enters the air-conditioning system after absorbing heat, so that the external liquid medium can quickly heat up the passenger compartment, thereby completing the heating, dehumidification and defogging functions in the passenger compartment.

When the evaporator 22 is connected to the battery cooling system, the evaporator 22 actually transfers heat from the external liquid medium to the refrigerant, causing the refrigerant to absorb heat and vaporize; thus, the external liquid medium transfers the heat generated during the battery charging and discharging process to the refrigerant, that is, the external liquid medium takes away the heat and cools the battery, thereby ensuring the normal use of the new energy vehicle.

When the evaporator 22 is connected to the electric drive cooling system, similarly, the evaporator 22 is the refrigerant that absorbs heat from the external liquid medium, and the external liquid medium will release heat before entering the electric drive cooling system, that is, the external liquid medium takes away the heat generated during the operation of the electric drive system and transfers it to the refrigerant in the evaporator 22. Therefore, the external liquid medium actually cools the electric drive, thereby ensuring the normal use of the new energy vehicle.

When the evaporator 22 is connected to the air-conditioning system, similarly, the evaporator 22 is the refrigerant that absorbs heat from the external liquid medium, whereby the external liquid medium will release heat and then enter the air-conditioning system, that is, the external liquid medium takes away the heat in the passenger compartment and transfers it to the refrigerant in the evaporator 22. Therefore, the external liquid medium actually cools the passenger compartment, thereby completing the functions of refrigeration, dehumidification and defogger in the passenger compartment.

Based on the above description about the evaporator 22/condenser 21 being connected to the battery cooling system, electric drive cooling system and air conditioning system of the new energy vehicle respectively, in the present utility model, the cooperation of the multi-way valve 33 and the multiple flow channels 31a can complete a variety of heat transfer methods, and the multi-way valve 33 can make the external liquid medium flow paths in each system be connected in series or in parallel, so as to reasonably distribute the heat in various parts of the vehicle, and then accurately perform thermal management; however, it should be noted that in the battery cooling system and electric drive cooling system of the new energy vehicle, relevant external radiators should be provided to dissipate the heat of the external liquid medium; and in the air conditioning system of the new energy vehicle, there should be an internal radiator to dissipate the heat of the external liquid medium.

Referring to Figures 1 and 2, in the present invention, since there are many external liquid medium flow paths, the external liquid medium stored in the expansion pot 32 can be added to the flow paths in each system at any time to ensure the heat transfer in each system. In order to more accurately control the heat transfer between the systems in the new energy vehicle, a proportional valve is also provided on the multi-channel flow channel plate 31. The proportional valve can accurately control the ratio of its switch, thereby controlling the flow rate of the liquid passing through its body, and then accurately controlling the heat transfer in each system of the new energy vehicle by controlling the amount of external liquid medium passing through, thereby improving the accuracy of the overall structure for heat control.

Referring to Fig. 1 and Fig. 2, specifically, in the present invention, the multi-channel flow plate 31 is arranged above the plate exchange assembly 2 and the compressor 1, and the multi-channel flow plate 31 has two opposite sides, one side is away from the plate exchange assembly 2 and the compressor 1, and the other side faces the plate exchange assembly 2 and the compressor 1; a plurality of flow channels 31a are arranged on the side of the multi-channel flow plate 31 away from the plate exchange assembly 2 and the compressor 1, and some of the flow channels 31a are used to introduce/export external liquid media to the condenser 21/evaporator 22, and the plurality of flow channels 31a are arranged on the side of the multi-channel flow plate 31 away from the plate exchange assembly 2 and the compressor 1, and the plurality of ... At least one flow channel 31a in the flow channel 31a is connected to the expansion pot 32; thus, the cooperation of multiple flow channels 31a and the multi-way valve 33 can complete the series or parallel connection between the external liquid medium flow paths in each system, and can complete the heat exchange process between each external liquid medium flow path and the evaporator 22/condenser 21; in addition, at least one flow channel 31a in the multiple flow channels 31a can introduce the external liquid medium in the expansion pot 32 into the external liquid medium flow paths in the new energy vehicle, so as to complete the replenishment of the external liquid medium of each system.

It should be noted that the external liquid medium is generally vehicle antifreeze, that is, vehicle antifreeze coolant, which is a cooling medium with antifreeze and other functions that circulates in the vehicle cooling system; vehicle antifreeze coolant is generally a water-based antifreeze of ethylene glycol. Ethylene glycol has a high boiling point, low volatility, moderate viscosity, small temperature change, and good thermal stability, so it is suitable as a component of antifreeze; but in addition to ethylene glycol, many inorganic substances, organic substances, and mixtures such as lubricating oils can also be used as components of antifreeze; specifically, substances that can lower the freezing point of water and increase the boiling point of water can be considered as one of the components of antifreeze.

Antifreeze is the main cooling medium in the vehicle. Generally speaking, the cooling medium in each system of the vehicle is antifreeze, such as the battery cooling system and electric drive cooling system of the vehicle mentioned above, both of which use antifreeze as the cooling medium; in the prior art, the battery cooling system and the electric drive cooling system have independent cooling circuits, both have independent external radiators to dissipate the antifreeze, or both can share the same external radiator for heat dissipation; although the cooling systems of the two can effectively dissipate heat, they cannot transfer the heat generated by the battery and the electric drive to other places, which may result in heat waste; and the vehicle air-conditioning system generally relies on refrigerant to complete cooling or heating, and a large number of pipelines need to be designed to complete different heat exchange methods of the refrigerant, thereby requiring a large amount of refrigerant to complete the cooling or heating cycle of the air-conditioning system.

Therefore, the thermal management device proposed in the utility model can simplify the refrigerant flow path, reduce the refrigerant flow path volume, thereby reducing the refrigerant filling amount and meeting the safety requirements when using flammable refrigerants; it is connected to the air-conditioning system and various cooling systems on the vehicle through the water side component 3, so that the heat exchange process with the air-conditioning system and/or various cooling systems during the refrigerant circulation process can be completed, thereby making full use of the heat generated during the operation of various systems of the vehicle, and can also quickly start and protect the vehicle battery and electric drive in a low temperature environment, making full use of the reasonable use and effective management of heat.

Specifically, in the utility model, a plurality of legs 31b are arranged at intervals on the outer edge of the multi-channel flow plate 31. In the present embodiment, the number of the legs 31b is four, and the four legs 31b are all arranged on the side of the multi-channel flow plate 31 close to the plate exchange assembly 2 and the compressor 1; in the present embodiment, the multi-channel flow plate 31 is rectangular, and the four legs 31b are symmetrically arranged on the opposite side edges of the multi-channel flow plate 31; thus, among the four legs 31b, two legs 31b are fixed on the outer casing of the compressor 1, and the other two legs 31b are respectively fixed on the condenser 21 and the evaporator 22, and the four legs 31b together support the water side assembly 3 as a whole; of course, the number of legs 31b in the above embodiment is only for example, and the legs 31b can also be set to two, three or more, as long as the support and fixation of the water side assembly 3 as a whole can be completed. In the above embodiment, the support leg 31b is fixed to the compressor 1, the condenser 21 or the evaporator 22 by bolts. In other embodiments, it can also be fixed by welding or other fixing methods. This is only for illustration and does not limit the protection scope of the present utility model.

In the present invention, due to the setting of the support feet 31b, a certain gap is formed between the multi-channel flow plate 31 and the compressor 1 and the plate exchange assembly 2, so that the space between the multi-channel flow plate 31 and the compressor 1 and the plate exchange assembly 2 can form an installation space; in the present invention, multiple flow channels 31a are located above the multi-channel flow plate 31, the expansion pot 32 is located above the multiple flow channels 31a, and the multi-way valve 33 and the proportional valve are located in the installation space; and a condensate pump 35 and an evaporation water pump 36 are also provided in the installation space, and the condensate pump 35 and the evaporation water pump 36 are each connected to at least one flow channel 31a, and the condensate pump 35 is used to pump external liquid medium into the condenser 21, and the evaporation water pump 36 ... The water pump 36 is used to pump external liquid medium into the evaporator 22, that is, the condensing water pump 35 and the evaporating water pump 36 provide power for the flow circulation of the external liquid medium in the condenser 21 and the evaporator 22 respectively; a third water pump 37 is also arranged in the installation space, and the third water pump 37 is used to pump the external liquid medium into or out of the expansion pot 32, that is, to provide power for the external liquid medium in the expansion pot 32; the setting of the installation space makes full use of the gap between the multi-channel flow plate 31 and the compressor 1 and the plate exchange assembly 2, further improves the overall integration of the thermal management device, and reduces the overall volume of the thermal management device, so as to leave more space for the car for installing the thermal management device proposed by the utility model.

On the basis of the above, in order to protect the compressor 1, i.e. the plate exchanger assembly 2, and also to reduce the possibility of leakage of the flammable refrigerant, the thermal management device proposed in the utility model also includes a protective cover 4, which is provided on the compressor 1 and the plate exchanger assembly 2. In other words, the protective cover 4 is provided to cover and protect all flow paths of the refrigerant to reduce the possibility of leakage of the refrigerant.

Specifically, the protective cover 4 includes a bottom plate 41 and four side plates 42. The bottom plate 41 used to fix the compressor 1 and the plate change assembly 2 is the bottom plate 41 of the protective cover 4, and the four side plates 42 are sealed together with the bottom plate 41 to form a sealed space, thereby providing sealing for the plate change assembly 2 and the compressor 1; it should be noted that the shape and area of the bottom plate 41 are similar to the multi-channel flow plate 31, so that the tops of the four side plates 42 can be sealed and connected with the multi-channel flow plate 31, thereby providing sealing for the plate change assembly 2 and the compressor 1; accordingly, if the shape of the multi-channel flow plate 31 changes, the bottom plate 41 can also change with the change of the multi-channel flow plate 31, and the number and shape of the side plates 42 can be adjusted at any time to provide sealing for the plate change assembly 2 and the compressor 1.

It should be noted that welding technology can be used to complete the fixed connection and sealing setting between the bottom plate 41, the side plate 42 and the multi-channel flow plate 31, or a hinged connection with sealant can be used to complete the fixed connection and sealing between each other; and with the sealing cover of the protective cover 4, the various components installed on the side of the multi-channel flow plate 31 facing the plate exchange assembly 2 and the compressor 1 will also be sealed accordingly; thereby further reducing the possibility of refrigerant leakage to the outside; in order to detect the leakage of the refrigerant so as to take timely response measures and ensure the safety of the overall structure, a refrigerant detection sensor is provided in the protective cover 4, so that when the refrigerant leaks, it can be notified at the first time, thereby reminding the vehicle user to inspect the thermal management equipment and reduce the possibility of fire or even explosion due to refrigerant leakage.

The utility model also proposes a thermal management system, which includes the above-mentioned thermal management device. The specific structure of the thermal management device refers to the above-mentioned embodiment. Since the thermal management system adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

The utility model also proposes a vehicle, the thermal management system includes the above-mentioned thermal management system, the specific structure of the thermal management system refers to the above-mentioned embodiment, since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

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

Claims (21)

1. A thermal management apparatus, comprising

A bottom plate;

the compressor is arranged on the bottom plate;

The plate exchange assembly is arranged on the bottom plate in parallel with the compressor and is used for heat exchange between the refrigerant and the external liquid medium;

The water side assembly is used for guiding external liquid medium into the plate exchange assembly, and is arranged above the compressor and the plate exchange assembly;

wherein the plate changing assembly is integrated with the compressor.

2. The thermal management apparatus of claim 1, wherein the plate change assembly comprises a condenser and an evaporator, the compressor being disposed on the same side of the condenser as the evaporator, the condenser being in communication with an outlet end of the compressor, the evaporator being in communication with an inlet end of the compressor.

3. The thermal management apparatus of claim 2, wherein the condenser is fixedly connected to the evaporator.

4. A thermal management device according to claim 3, wherein a thermal insulation hollowed-out is provided between the condenser and the evaporator.

5. The thermal management apparatus of claim 2, wherein a reservoir is disposed between the compressor and the plate package, the reservoir for storing a liquid refrigerant, the reservoir having a cambered surface that engages the outer wall of the compressor and a mounting surface that engages the plate package.

6. The thermal management apparatus of claim 5, wherein refrigerant is compressed by said compressor and enters said condenser, condensed by said condenser and enters said accumulator, and said accumulator redirects liquid refrigerant to said condenser.

7. The thermal management apparatus according to claim 6, wherein a connection pipe for introducing the liquid refrigerant into the evaporator is provided at a side of the condenser facing away from the compressor, and a first expansion valve is provided at an end of the connection pipe at the evaporator.

8. The thermal management apparatus according to any one of claims 2 to 7, wherein the housing of the compressor is formed with a first return passage for introducing the refrigerant in the evaporator to the air intake end of the compressor and a second return passage for introducing the refrigerant in the air outlet end of the compressor to the air intake end of the compressor, respectively, in a convex shape.

9. The thermal management apparatus according to claim 8, wherein said second return passage is provided with a second expansion valve for controlling a flow rate of refrigerant in said second return passage.

10. The thermal management apparatus of claim 8, wherein the water side assembly comprises a multi-channel flow conduit plate disposed above the plate change assembly and an expansion pot disposed above the multi-channel flow conduit plate, the expansion pot being configured to receive ambient liquid medium, the side of the multi-channel flow conduit plate facing away from the plate change assembly having a plurality of flow conduits, a portion of the flow conduits being configured to direct ambient liquid medium to the condenser and/or the evaporator, and at least one of the plurality of flow conduits being in communication with the expansion pot.

11. The thermal management apparatus of claim 10, wherein a plurality of legs are provided at intervals on an outer edge of the multi-channel flow channel plate, ends of the legs are fixed to the compressor or the plate changing assembly, and an installation space is formed between a side of the multi-channel flow channel plate facing the plate changing assembly and the plate changing assembly.

12. The thermal management apparatus of claim 11, wherein a multi-way valve is disposed in said installation space, said multi-way valve being in communication with a plurality of said flow channels, said multi-way valve being adapted to control the flow direction of refrigerant within and outside said multi-channel flow channel plate.

13. The thermal management apparatus of claim 12, wherein a condensate pump is disposed in the installation space, the condensate pump being configured to pump an external fluid medium into the condenser, the condensate pump being in communication with at least one of the flow channels.

14. The thermal management apparatus of claim 13, wherein an evaporation pump is disposed in the installation space, the evaporation pump being configured to pump an external liquid medium into the evaporator, the evaporation pump being in communication with at least one of the flow channels.

15. The thermal management apparatus of claim 14, wherein a third water pump is disposed within the installation space, the third water pump in communication with the expansion tank, the third water pump for pumping in or out external liquid medium into the expansion tank.

16. The thermal management apparatus of claim 11, further comprising a protective cover sealingly disposed within the protective cover, the compressor and the plate changing assembly sealingly disposed on top of the protective cover and in communication with the plate changing assembly.

17. The thermal management apparatus of claim 16, wherein a sensor is disposed within said shield, said sensor configured to detect refrigerant leakage.

18. The thermal management apparatus of claim 17, wherein the base plate is provided with a plurality of supports.

19. The thermal management apparatus of claim 9, wherein one end of the compressor is provided with a control assembly for controlling the compressor, the first expansion valve, the second expansion valve, and the water side assembly.

20. A thermal management system comprising a thermal management device according to any one of claims 1-19.

21. A vehicle comprising a thermal management system as claimed in claim 20.