CN216903126U - Battery heat management device and vehicle - Google Patents
Battery heat management device and vehicle Download PDFInfo
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- CN216903126U CN216903126U CN202220011496.2U CN202220011496U CN216903126U CN 216903126 U CN216903126 U CN 216903126U CN 202220011496 U CN202220011496 U CN 202220011496U CN 216903126 U CN216903126 U CN 216903126U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The application provides a battery thermal management device and a vehicle. The battery heat management device comprises a heat exchange system, wherein the heat exchange system comprises a refrigerant circulation loop, a heat exchanger is arranged in the refrigerant circulation loop, the heat exchanger is communicated with a battery pack, and the refrigerant of the heat exchange system and the cooling liquid of the battery pack can exchange heat in the heat exchanger; the refrigerant circulating loop comprises a connecting pipe for conveying a refrigerant, and the connecting pipe is a copper pipe; the electric control system comprises a power supply part and a frequency converter, wherein the power supply part and the frequency converter are both connected with the same installation part. This kind of battery heat management device and vehicle, power supply unit and converter all are connected with same installation department, can provide more installation space for other parts of battery heat management device, and use the copper pipe as the pipeline of carrying the refrigerant, and the hardness of copper pipe is great, is convenient for carry out the pipeline according to the mounted position of each part in the heat transfer system and arranges, has optimized the overall arrangement of pipeline for battery heat management device inner structure overall arrangement is neat.
Description
Technical Field
The application relates to the technical field of battery heat dissipation equipment, in particular to a battery heat management device and a vehicle.
Background
With the development of new energy technology, more and more vehicles adopt a power battery as a power source, and the power battery needs to work under a stable and uniform temperature condition to ensure the optimal performance of the power battery, so a battery thermal management device needs to be configured to perform thermal management on the power battery. The battery heat management device is generally provided with a heat exchange system and an electric control system, wherein the heat exchange system is generally provided with a compressor, a condenser, a throttle valve and a heat exchanger, and the compressor, the condenser, the throttle valve and the heat exchanger are sequentially connected through a refrigerant hose to form a refrigerant circulation loop; the electronic control system typically includes a power supply component and a frequency converter. However, the components in the heat exchange system are connected by using the refrigerant hose, and the pipes are not orderly, so that the structural layout is disordered; and power supply unit and converter separately install, and occupation space is great, leads to space utilization to be lower.
SUMMERY OF THE UTILITY MODEL
The application provides a battery heat management device and a vehicle, which can optimize the spatial layout of internal components of the battery heat management device.
A first aspect of the present application provides a battery thermal management apparatus, comprising:
the heat exchange system comprises a refrigerant circulation loop, a heat exchanger is arranged in the refrigerant circulation loop and is communicated with the battery pack, and the refrigerant of the heat exchange system and the cooling liquid of the battery pack can exchange heat in the heat exchanger;
the refrigerant circulating loop comprises a connecting pipe for conveying the refrigerant, and the connecting pipe is a copper pipe;
and the electric control system comprises a power supply part and a frequency converter, wherein the power supply part and the frequency converter are connected with the same installation part.
In one possible design, the mounting part is a heat conducting plate, and the power supply part and the frequency converter are respectively connected with the mounting part through heat conducting silicone grease;
the electric control system further comprises a heat dissipation assembly, and the heat dissipation assembly is connected with the installation part and used for dissipating heat of the installation part.
In a possible design, the heat exchange system further comprises a fan, the heat dissipation assembly comprises a plurality of heat dissipation fins arranged at intervals, the heat dissipation fins are connected with the mounting portion, a heat dissipation channel is formed between the heat dissipation fins, and the heat dissipation channel extends in the exhaust direction of the fan.
In one possible design, the heat exchange system further comprises a condenser for exchanging heat with the refrigerant;
the fan is arranged opposite to the condenser along the exhaust direction of the fan, and the heat dissipation assembly is positioned on one side of the condenser, which is far away from the fan;
the condenser is provided with an exhaust gap, the exhaust gap can be communicated with the heat dissipation channel, and the fan is used for discharging airflow in the exhaust gap to one side far away from the heat dissipation assembly.
In one possible design, the heat exchange system further comprises a compressor, a liquid storage dryer, a throttle valve and a water pump, the heat exchanger comprises a first channel, and the compressor, the condenser, the liquid storage dryer, the throttle valve and the first channel are sequentially communicated in a circulating mode through the connecting pipe to form the refrigerant circulating loop;
the battery heat management device further comprises a shell, the heat exchange system, the power supply component, the frequency converter, the installation part and the heat dissipation assembly are installed in the shell, the shell comprises a bottom plate and a first lateral supporting part and a second lateral supporting part which are connected to two opposite sides of the bottom plate, the fan and the condenser are both connected with the first lateral supporting part, and the fan exhausts in the direction of air, the first lateral supporting part and the second lateral supporting part are arranged oppositely, the heat exchanger is provided with a throttle valve, the water pump, the power supply component, the frequency converter, the installation part and the heat dissipation assembly are both arranged close to one side of the second lateral supporting part, and the compressor and the liquid storage dryer are both arranged between the condenser and the heat exchanger.
In a possible design, the housing further includes a third lateral supporting portion, two ends of the third lateral supporting portion are respectively connected to the first lateral supporting portion and the second lateral supporting portion, and the third lateral supporting portion is located on one side of the mounting portion away from the heat exchange system along a direction perpendicular to the air exhaust direction of the fan;
the electric control system further comprises a controller, the controller can control the working state of the heat exchange system, and the controller is installed on the third lateral supporting portion.
In one possible design, the heat exchange system further comprises a liquid inlet pipe, a first rubber hose and a second rubber hose, the heat exchanger further comprises a second channel, the battery pack and the second channel are sequentially communicated with the water pump in a circulating mode to form a cooling liquid circulating loop, and the cooling liquid can flow in the cooling liquid circulating loop;
the second channel is communicated with the water pump through the first rubber hose, the water pump is communicated with the battery pack through the second rubber hose, and the battery pack is communicated with the second channel through the liquid inlet pipe.
In one possible design, the liquid inlet pipe is located on a side of the heat exchanger facing the battery pack, and the liquid inlet pipe is integrally formed with the heat exchanger.
In one possible design, the electronic control system further comprises a fan speed regulator, wherein the fan speed regulator is used for regulating the wind speed of the fan;
the battery heat management device further comprises a mounting box, the mounting box is connected with the mounting part, the power supply part and the frequency converter are both located in the mounting box and along the height direction of the battery heat management device, and the fan speed regulator is located above the mounting box and connected with the outer side wall of the mounting box.
A second aspect of the present application provides a vehicle comprising a battery thermal management apparatus as described above.
The beneficial effect of this application does:
the application provides a battery heat management device and have its vehicle, power supply unit and converter among the electrical system all are connected with same installation department, power supply unit and converter are put together and are installed promptly, compare in power supply unit and converter separately-mounted, can provide more installation space for other parts of battery heat management device, and use the copper pipe as the pipeline of carrying the refrigerant, the hardness of copper pipe is great, be convenient for carry out the pipeline according to the mounted position of each part in the heat transfer system and arrange, the overall arrangement of pipeline has been optimized, make battery heat management device inner structure overall arrangement neat, copper pipe cost is lower in addition, the preparation is convenient, be convenient for maintain, operations such as change.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
FIG. 1 is a schematic structural diagram of a battery thermal management apparatus provided herein in one embodiment;
fig. 2 is a schematic structural diagram of the power supply unit, the frequency converter, the mounting unit and the heat dissipation assembly in fig. 1.
Reference numerals:
10-a heat exchange system;
101-a heat exchanger;
102-a connecting tube;
103-a fan;
104-a condenser;
105-a compressor;
106-stock solution drier;
107-throttle valve;
108-a water pump;
109-a liquid inlet pipe;
110-a first rubber hose;
111-a second rubber hose;
112-aluminum tube;
20-an electronic control system;
201-power supply components;
202-a frequency converter;
203-a mounting portion;
204-a heat dissipation assembly;
204 a-heat dissipation fins;
204 b-heat dissipation channel;
205-a controller;
206-fan speed controller;
207-mounting the cartridge;
30-a housing;
301-a base plate;
302-a first lateral support;
303-a second lateral support;
304-a third lateral support;
305-a fourth lateral support;
306-a top plate;
307-air inlet holes.
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Detailed Description
For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
From the development of market situation, the application of the power battery as a main energy storage device is more and more extensive, and the power battery is not only applied to energy storage power supply systems of hydraulic power, firepower, wind power, solar power stations and the like, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment, aerospace and the like.
The power battery generates a certain amount of heat during charging and discharging, thereby causing temperature rise, and the temperature rise affects many characteristic parameters of the power battery, such as internal resistance, voltage, available capacity, discharging efficiency, battery life and the like. In order to prolong the service life of the power battery as far as possible and obtain the maximum power, the battery is required to be used in a specified temperature range, and therefore a battery thermal management device is required to be configured to carry out thermal management on the battery.
The power battery is usually a battery pack formed by connecting a plurality of battery cells in series or in parallel or in series-parallel to meet the actual power consumption requirement. The battery pack is internally provided with cooling liquid, and the cooling liquid can heat or cool the battery pack so as to adjust the temperature of the battery pack.
As shown in fig. 1, the present embodiment provides a battery thermal management device that can be installed in a vehicle and used to thermally manage a battery pack in the vehicle, so that the battery pack can operate under stable and uniform temperature conditions, thereby improving the performance and life of the battery pack. The vehicle in the embodiment of the application can be an electric engineering vehicle, an electric passenger car, an electric car and the like.
As shown in fig. 1-2, the present application provides a battery thermal management apparatus, which includes a heat exchange system 10 and an electronic control system 20, where the heat exchange system 10 includes a refrigerant circulation loop, a heat exchanger 101 is disposed in the refrigerant circulation loop, the heat exchanger 101 is communicated with a battery pack (not shown in the figure), and a refrigerant of the heat exchange system 10 and a coolant of the battery pack can exchange heat in the heat exchanger 101; the refrigerant circulation circuit comprises a connecting pipe 102 for conveying refrigerant, and the connecting pipe 102 is a copper pipe; the electronic control system 20 includes a power supply unit 201 and a frequency converter 202, and both the power supply unit 201 and the frequency converter 202 are connected to the same mounting portion 203.
The refrigerant circulation loop is a loop in which a refrigerant flows, and the refrigerant continuously generates gas-liquid two-phase change in the circulation flowing process so as to take away heat in the cooling liquid, realize the cooling of the cooling liquid and indirectly realize the cooling of the battery pack.
When the temperature of the battery pack is higher than the set temperature range, the heat exchange system 10 can introduce high-temperature cooling liquid of the battery pack into the heat exchanger 101, cool the high-temperature cooling liquid in the heat exchanger 101 to form low-temperature cooling liquid, and convey the low-temperature cooling liquid into the battery pack to cool the battery pack; when the temperature of the battery pack is lower than the set temperature range, the heat exchange system 10 can introduce the low-temperature coolant of the battery pack into the heat exchanger 101, heat the low-temperature coolant in the heat exchanger 101 to form high-temperature coolant, and convey the high-temperature coolant into the battery pack to heat the battery pack.
The electronic control system 20 can provide power to the heat exchange system 10 to turn the heat exchange system 10 on or off, and can also adjust the operating state of the heat exchange system 10, such as controlling the heat exchange system 10 to be in a cooling mode or a heating mode according to the temperature of the battery pack coolant. The power supply unit 201 is configured to provide electric energy for the internal components of the heat exchange system 10, and the power supply unit 201 in this embodiment may specifically be a DCDC power supply, and the DCDC power supply can convert high-voltage direct current into low-voltage direct current to meet the voltage requirement of the internal components of the heat exchange system 10. In other embodiments, the power supply component 201 may also be a chemical power supply or the like. The inverter 202 is an electric energy control device that converts a power frequency power supply into another frequency by using the on-off action of an electric semiconductor device, and can realize functions of soft start, variable frequency speed regulation, improvement of operation accuracy, change of power factor, overcurrent/overvoltage/overload protection, and the like for the compressor 105 in the heat exchange system 10.
In this embodiment, power supply unit 201 and converter 202 among electrical system 20 all are connected with same installation department 203, power supply unit 201 and converter 202 are put together and are installed promptly, compare in power supply unit 201 and converter 202 separately installation, can provide more installation spaces for other parts of battery heat management device, and use the copper pipe as the pipeline of carrying the refrigerant, the hardness of copper pipe is great, be convenient for carry out the pipe arrangement according to the mounted position of each part in heat exchange system 10, the overall arrangement of pipeline has been optimized, make battery heat management device inner structure overall arrangement neat, copper pipe cost is lower in addition, the preparation is convenient, be convenient for maintain, operations such as change.
In one embodiment, the mounting portion 203 is a heat conducting plate, and the power supply unit 201 and the frequency converter 202 are respectively connected to the mounting portion 203 through a heat conducting silicone grease; the electronic control system 20 further includes a heat sink 204, and the heat sink 204 is connected to the mounting portion 203 and is configured to dissipate heat from the mounting portion 203.
In this embodiment, when the power supply unit 201 and the inverter 202 generate heat during operation, heat can be transferred to the mounting portion 203 through the heat conductive silicone grease, and the heat of the mounting portion 203 is dissipated by the heat dissipation assembly 204. The power supply part 201 and the frequency converter 202 dissipate heat through the same heat dissipation assembly 204, so that the power supply part 201 and the frequency converter 202 do not need to be separately provided with a shell with a heat dissipation function, and the size of the power supply part 201 and the size of the frequency converter 202 are reduced.
The mounting portion 203 may be made of aluminum alloy or brass to ensure the thermal conductivity of the mounting portion 203. The heat conductive silicone grease between the power supply component 201 and the mounting portion 203 may be applied to the power supply component 201, and then the power supply component 201 is contacted with the mounting portion 203, and the power supply component 201 is fixedly connected with the mounting portion 203 by using a member such as a screw. The heat-conducting silicone grease between the frequency converter 202 and the mounting portion 203 can be applied to the frequency converter 202, and then the frequency converter 202 is contacted with the mounting portion 203, and the frequency converter 202 is fixedly connected with the mounting portion 203 by using screws.
In this embodiment, the specific application manner of the heat-conducting silicone grease, the specific connection manner between the power supply component 201 and the mounting portion 203, and the specific connection manner between the frequency converter 202 and the mounting portion 203 are not limited.
Specifically, as shown in fig. 1-2, the heat exchange system 10 further includes a fan 103, the heat dissipation assembly 204 includes a plurality of heat dissipation fins 204a arranged at intervals, the plurality of heat dissipation fins 204a are all connected to the mounting portion 203, a heat dissipation channel 204b is formed between adjacent heat dissipation fins 204a, and the heat dissipation channel 204b extends along the exhaust direction X of the fan 103.
In this embodiment, heat generated by the power supply unit 201 or the frequency converter 202 is transferred to the mounting portion 203 through the heat conductive silicone grease, the mounting portion 203 transfers the heat to the heat dissipation fins 204a, at this time, the fan 103 is in a working state, and under the action of the fan 103, airflow in the heat dissipation channel 204b is discharged to the outside, so that the heat of the heat dissipation fins 204a is taken away, and the purpose of heat dissipation is achieved; the radiator formed by the mounting part 203 and the radiating fins 204a has a simple structure, is convenient to manufacture and has lower cost.
Here, the heat dissipation fins 204a may be made of aluminum alloy or brass, and in order to improve heat dissipation efficiency and structural strength, it is preferable that the heat dissipation fins 204a in the present embodiment are integrally formed with the mounting portion 203. In other embodiments, one end of the heat dissipating fin 204a may be welded to the mounting portion 203.
In one embodiment, as shown in fig. 1, the heat exchange system 10 further comprises a condenser 104, the condenser 104 being adapted to exchange heat with the refrigerant; along the exhaust direction X of the fan 103, the condenser 104 is arranged opposite to the fan 103, and the heat dissipation assembly 204 is positioned on one side of the condenser 104 away from the fan 103; the condenser 104 is provided with an exhaust gap which can communicate with the heat dissipation channel 204b, and the fan 103 is used for exhausting the airflow in the exhaust gap to the side far away from the heat dissipation assembly 204.
In this embodiment, the condenser 104 is used for condensing a refrigerant, a high-temperature high-pressure gaseous refrigerant can be condensed into a medium-temperature high-pressure liquid refrigerant in the condenser 104, the condenser 104 has a plurality of tubular or sheet heat dissipation units, exhaust gaps are formed among the plurality of heat dissipation units, the refrigerant transfers heat released by the condensation of the refrigerant to the outside through the outer walls of the heat dissipation units in the flowing process of the heat dissipation units, and at this time, under the action of the fan 103, the fan 103 discharges airflow in the exhaust gaps to one side away from the heat dissipation assembly 204 so as to take away the heat released by the condensation of the refrigerant; because the heat dissipation channel 204b of the heat dissipation assembly 204 is communicated with the exhaust gap of the condenser 104, under the action of the fan 103, the airflow in the heat dissipation channel 204b is discharged to the condenser 104 and flows to the side far away from the heat dissipation assembly 204 through the exhaust gap of the condenser 104; that is, the same fan 103 can radiate the heat of the heat radiating fins 204a while radiating the heat of the condenser 104, so that the heat radiating assembly 204 does not need to be provided with an air cooling assembly or a water cooling assembly separately, the size of the heat radiating assembly 204 is reduced, the installation space required by the heat radiating assembly 204 is reduced, and the space utilization rate of the interior of the battery heat management device is further improved.
The above is only a brief description of the structure of the condenser 104, and the more detailed arrangement and operation of the condenser 104 are well known to those skilled in the art.
The refrigerant may specifically be ammonia (code: R717), Freon-12 (code: R12), tetrafluoroethane (code: R134a), or the like.
For improving the condensation effect, the concurrent flow condenser of making by the aluminium material is chooseed for use to this embodiment, and the concurrent flow condenser has light in weight and advantage that heat exchange efficiency is high, can practice thrift installation space when satisfying the heat transfer demand.
In order to improve the heat dissipation effect on the condenser 104 and the heat dissipation fins 204a, two fans 103 are selected in this embodiment.
Specifically, as shown in fig. 1, the heat exchange system 10 further includes a compressor 105, a receiver-drier 106, a throttle valve 107 and a water pump 108, the heat exchanger 101 includes a first channel, and the compressor 105, the condenser 104, the receiver-drier 106, the throttle valve 107 and the first channel are sequentially communicated in a circulating manner through a connecting pipe 102 to form a refrigerant circulation loop, so that the refrigerant sequentially passes through the compressor 105, the condenser 104, the receiver-drier 106, the throttle valve 107 and the first channel.
The battery thermal management device further comprises a shell 30, the heat exchange system 10, the power supply part 201, the frequency converter 202, the mounting part 203 and the heat dissipation assembly 204 are all mounted in the shell 30, the shell 30 comprises a bottom plate 301 and a first lateral supporting part 302 and a second lateral supporting part 303 which are connected to two opposite sides of the bottom plate 301, the fan 103 and the condenser 104 are both connected with the first lateral supporting part 302, the first lateral supporting part 302 and the second lateral supporting part 303 are arranged oppositely along the exhaust direction X of the fan 103, the heat exchanger 101, the throttle valve 107, the water pump 108, the power supply part 201, the frequency converter 202, the mounting part 203 and the heat dissipation assembly 204 are all arranged at one side close to the second lateral supporting part 303, the compressor 105 and the liquid storage dryer 106 are all arranged between the condenser 104 and the heat exchanger 101, an air inlet space is reserved for the condenser 104, the structure layout is compact, and the air volume flowing through the condenser 104 can meet the use requirement, the heat dissipation efficiency of the condenser 104 is improved, which is further beneficial to improving the overall heat exchange efficiency of the heat exchange system 10.
In the refrigerant circulation circuit, the compressor 105 is a driving element for compressing a low-temperature and low-pressure gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and driving the refrigerant to circulate in the refrigerant circulation circuit. The high-temperature and high-pressure gas refrigerant flowing out of the compressor 105 is introduced into the condenser 104 through the connection pipe 102, and the high-temperature and high-pressure gas refrigerant is condensed into a medium-temperature and high-pressure liquid refrigerant in the condenser 104; then the liquid refrigerant with medium temperature and high pressure is led into a liquid storage dryer 106 through a connecting pipe 102, the liquid storage dryer 106 can store the redundant liquid refrigerant flowing out of the condenser 104, and can dry the liquid refrigerant flowing out of the condenser 104, filter moisture and impurities; then the medium-temperature high-pressure liquid refrigerant is led into a throttle valve 107 through a connecting pipe 102, and the medium-temperature high-pressure liquid refrigerant is throttled and depressurized to become a low-temperature low-pressure liquid refrigerant; the low-temperature low-pressure liquid refrigerant is introduced into a first channel of the heat exchanger 101 through a connecting pipe 102, absorbs heat in the first channel and is gasified into a low-temperature low-pressure gaseous refrigerant; the low-temperature and low-pressure gas refrigerant is introduced into the compressor 105 through the connection pipe 102 and circulated.
In a specific embodiment, as shown in fig. 1, the housing 30 further includes a third lateral support portion 304, two ends of the third lateral support portion 304 are respectively connected to the first lateral support portion 302 and the second lateral support portion 303, and the third lateral support portion 304 is located on a side of the mounting portion 203 away from the heat exchange system 10 in a direction perpendicular to the exhaust direction of the fan 103; the electronic control system 20 further comprises a controller 205, the controller 205 is capable of controlling the operation state of the heat exchanging system 10, and the controller 205 is mounted on the third lateral support portion 304.
The controller 205 and the frequency converter 202 are electrically connected, and the electrical connection in this embodiment specifically refers to connecting the two through a signal line, so as to enable data transmission between the two. The controller 205 can transmit a control signal to the inverter 202 to control the operation state of the inverter 202, and thus the operation state of the compressor 105, and adjust the heat exchange efficiency of the heat exchange system 10. The controller 205 may be a centralized or distributed controller 205, for example, the controller 205 may be a single-chip microcomputer or may be formed by a plurality of distributed single-chip microcomputers, and a control program may be run in the single-chip microcomputers to control the operation of each component.
In this embodiment, the controller 205 is mounted on the third lateral support portion 304, and the third lateral support portion 304 is located on the side of the mounting portion 203 away from the heat exchange system 10, so that the space occupied by the controller 205 inside the casing 30 is reduced, the controller 205 is convenient to mount and dismount, and the after-sales maintenance is convenient.
Specifically, the electronic control system 20 further includes a fan speed regulator 206, and the fan speed regulator 206 is used for regulating the wind speed of the fan 103; the battery thermal management device further comprises a mounting box 207, the mounting box 207 is connected with the mounting portion 203, the power supply part 201 and the frequency converter 202 are both located in the mounting box 207, and along the height direction Y of the battery thermal management device, the fan speed regulator 206 is located above the mounting box 207 and is connected with the outer side wall of the mounting box 207.
In this embodiment, the controller 205 and the fan speed regulator 206 are electrically connected to enable data transmission therebetween, and the controller 205 can control the operating state of the fan speed regulator 206 to adjust the fan speed of the fan 103. The mounting box 207 provides protection for the power supply part 201 and the frequency converter 202, prevents the power supply part 201 and the frequency converter 202 from being damaged by colliding with or extruding an external object, and prolongs the service life of the power supply part 201 and the frequency converter 202. Blower governor 206 is mounted above mounting box 207, and is favorable to the reasonable layout of battery thermal management device internals.
In a specific embodiment, as shown in fig. 1, the housing 30 further includes a fourth lateral support portion 305 and a top plate 306, two ends of the fourth lateral support portion 305 are respectively connected to the first lateral support portion 302 and the second lateral support portion 303, the first lateral support portion 302, the second lateral support portion 303, the third lateral support portion 304 and the fourth lateral support portion 305 are all connected to the top plate 306 and are also connected to the bottom plate 301, the housing 30 provides support for the heat exchange system 10 and the electronic control system 20 and simultaneously plays a role in protection, and the heat exchange system 10 and the electronic control system 20 are prevented from being damaged by colliding, extruding and the like by external objects.
More specifically, the compressor 105, the heat exchanger 101, and the water pump 108 are connected to the base plate 301, the receiver-drier 106 is connected to the fourth lateral support portion 305, and the throttle valve 107 is installed between the receiver-drier 106 and the heat exchanger 101. The liquid storage dryer 106 can be connected with the fourth lateral supporting part 305 through a hose clamp and a screw, so that the space is saved and the fixing strength is also considered.
The bottom plate 301 can be a galvanized plate, and the galvanized plate has higher strength and can provide better supporting function for components connected with the bottom plate 301; the top plate 306, the first lateral support portion 302, the second lateral support portion 303, the third lateral support portion 304, and the fourth lateral support portion 305 may be aluminum alloy plates, which are light in weight and low in cost, and are beneficial to the light-weight design of the battery thermal management device.
As shown in fig. 1, at least one of the top plate 306, the second lateral support 303, the third lateral support 304 and the fourth lateral support 305 is provided with air inlet holes 307, that is, at least one of the top plate 306, the second lateral support 303, the third lateral support 304 and the fourth lateral support 305 is provided with a porous hollow structure, so that the external air can enter the casing 30 and be discharged to the outside of the casing 30 by the fan 103, and the heat dissipation of the condenser 104 and the heat dissipation assembly 204 is completed. In order to ensure the amount of the intake air and improve the heat dissipation efficiency, the top plate 306, the second lateral support 303, and the fourth lateral support 305 in this embodiment are provided with air intake holes 307.
Specifically, the heat exchanger 101 further includes a second channel (not shown in the figure), and referring to fig. 1, the heat exchange system 10 further includes a liquid inlet pipe 109, a first rubber hose 110 and a second rubber hose 111, and the battery pack, the second channel and the water pump 108 are sequentially communicated to form a cooling liquid circulation loop; the second channel is communicated with the water pump 108 through a first rubber hose 110, the water pump 108 is communicated with the battery pack through a second rubber hose 111, and the battery pack is communicated with the second channel through a liquid inlet pipe 109.
In this embodiment, the cooling liquid of the battery pack flows into the second channel of the heat exchanger 101 through the liquid inlet pipe 109 under the driving of the water pump 108, and exchanges heat with the low-temperature low-pressure liquid refrigerant flowing into the first channel, and the low-temperature low-pressure liquid refrigerant absorbs the heat of the high-temperature cooling liquid, thereby achieving a cooling effect on the cooling liquid; the cooled coolant flows into the water pump 108 through the first rubber hose 110, the water pump 108 discharges the cooled coolant to the battery pack through the second rubber hose 111, and the low-temperature coolant cools the high-temperature battery monomer. The first rubber hose 110 and the second rubber hose 111 are used as pipelines for conveying cooling liquid, so that fixed connection points are reduced, leakage risks are reduced, and meanwhile space is saved.
More specifically, as shown in fig. 1, the heat exchange system 10 in the present embodiment is further provided with an aluminum pipe 112, and the aluminum pipe 112 is disposed between the battery pack and the second rubber hose 111, that is, the cooling liquid output by the water pump 108 passes through the second rubber hose 111, then passes through the aluminum pipe 112, and then reaches the battery pack, and is connected with the second rubber hose 111 through the aluminum pipe 112 to form a conveying channel for the cooling liquid, so that the cost can be reduced.
In the present embodiment, the first channel of the heat exchanger 101 is a flow channel of refrigerant in the heat exchanger 101, an inlet of the first channel is connected to the throttle valve 107, and an outlet of the first channel is connected to the compressor 105; a second channel of the heat exchanger 101 is a circulation channel of the cooling liquid in the heat exchanger 101, an inlet of the second channel is connected with the battery pack, and an outlet of the second channel is connected with the water pump 108; the first channel can be abutted against the second channel so that the low-temperature and low-pressure liquid refrigerant in the first channel can exchange heat with the high-temperature cooling liquid in the second channel. Preferably, in this embodiment, the heat exchanger 101 is a plate heat exchanger with high heat exchange efficiency, small floor space and large relative heat exchange area.
In a specific embodiment, as shown in fig. 1, a liquid inlet pipe 109 is arranged on one side of the heat exchanger 101 facing the battery pack, and the liquid inlet pipe 109 and the heat exchanger 101 are integrally formed, so that the heat exchanger 101 is connected with the battery pack without arranging a bent pipeline, the space is saved, and the liquid inlet pipe 109 and the heat exchanger 101 are integrally formed, and the leakage risk of the cooling liquid is reduced.
In an embodiment, the heat exchanging system 10 may further include a PTC heater (not shown in the figure), the PTC heater is disposed at an outlet of the water pump 108, when the temperature of the battery pack is lower than a set temperature range, the controller 205 controls the heat exchanging system 10 to be in a closed state, the controller 205 controls the water pump 108 and the PTC heater to be both turned on, the water pump 108 pumps the low-temperature coolant out of the battery pack and delivers the low-temperature coolant to the PTC heater, the PTC heater heats the low-temperature coolant to a high-temperature coolant, and the high-temperature coolant is delivered to the battery pack to heat the battery pack.
In a specific embodiment, a specific working process of the battery thermal management device provided in this embodiment is as follows:
shutdown state: the refrigerant circulation circuit and the coolant circulation circuit are both closed, and the compressor 105, the fan 103, the water pump 108, and the like do not work.
A refrigeration state: when the temperature of the battery pack is higher than the set temperature range, the refrigerant circulation loop and the cooling liquid circulation loop are both opened. On the refrigerant side, the compressor 105 compresses the low-temperature and low-pressure gas refrigerant into a high-temperature and high-pressure gas refrigerant, which is introduced into the condenser 104, and the high-temperature and high-pressure gas refrigerant undergoes a phase change and releases heat to become a medium-temperature and high-pressure liquid refrigerant in the condenser 104 by the blowing and cooling action of the fan 103. The medium-temperature high-pressure liquid refrigerant flows through the liquid storage dryer 106 and then enters the throttle valve 107, and after isenthalpic throttling and pressure reduction are carried out in the throttle valve 107, the medium-temperature high-pressure liquid refrigerant becomes low-temperature low-pressure liquid refrigerant and enters the heat exchanger 101. In the heat exchanger 101, the liquid refrigerant evaporates and absorbs heat of the cooling liquid to become a low-temperature and low-pressure gaseous refrigerant, and then enters the compressor 105 to restart the next cycle. On the cooling liquid side, the water pump 108 does work to pump the high-temperature cooling liquid in the battery pack into the heat exchanger 101 and exchange heat with the refrigerant to form low-temperature cooling liquid, and then the low-temperature cooling liquid flows through the PTC heater (in a closed state at this time) and flows back into the battery pack to dissipate heat and cool the battery pack.
Heating state: when the temperature of the battery pack is lower than the set temperature range, the refrigerant circulation loop is closed, and the cooling liquid circulation loop is opened. On the cooling liquid side, the water pump 108 starts, and the PTC heater opens in order to heat the coolant liquid, and the low-temperature coolant liquid is taken out to the interior coolant liquid of group battery to the water pump 108 acting, and the low-temperature coolant liquid flows through heat exchanger 101 and PTC heater (being in the open mode at this moment) in proper order, and the low-temperature coolant liquid is heated in the PTC heater and becomes high temperature coolant liquid, reentries in the group battery to heat the intensification to the group battery.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A battery thermal management device, comprising:
the heat exchange system (10) comprises a refrigerant circulation loop, a heat exchanger (101) is arranged in the refrigerant circulation loop, the heat exchanger (101) is communicated with the battery pack, and the refrigerant of the heat exchange system (10) and the cooling liquid of the battery pack can exchange heat in the heat exchanger (101);
the refrigerant circulation loop comprises a connecting pipe (102) used for conveying the refrigerant, and the connecting pipe (102) is a copper pipe;
the electric control system (20) comprises a power supply component (201) and a frequency converter (202), wherein the power supply component (201) and the frequency converter (202) are connected with the same installation part (203).
2. The battery thermal management device according to claim 1, wherein the mounting portion (203) is a heat-conducting plate, and the power supply part (201) and the frequency converter (202) are connected to the mounting portion (203) through heat-conducting silicone grease, respectively;
the electronic control system (20) further comprises a heat dissipation assembly (204), and the heat dissipation assembly (204) is connected with the mounting portion (203) and used for dissipating heat of the mounting portion (203).
3. The battery thermal management device according to claim 2, wherein the heat exchange system (10) further comprises a fan (103), the heat dissipation assembly (204) comprises a plurality of heat dissipation fins (204a) arranged at intervals, the plurality of heat dissipation fins (204a) are connected with the mounting portion (203), heat dissipation channels (204b) are formed between adjacent heat dissipation fins (204a), and the heat dissipation channels (204b) extend along an exhaust direction (X) of the fan (103).
4. The battery thermal management apparatus according to claim 3, wherein the heat exchange system (10) further comprises a condenser (104), the condenser (104) being adapted to exchange heat with the refrigerant;
the fan (103) is arranged opposite to the condenser (104) along the exhaust direction (X) of the fan (103), and the heat dissipation assembly (204) is positioned on one side of the condenser (104) far away from the fan (103);
the condenser (104) is provided with an exhaust gap which can be communicated with the heat dissipation channel (204b), and the fan (103) is used for exhausting airflow in the exhaust gap to one side far away from the heat dissipation component (204).
5. The battery thermal management device according to claim 4, wherein the heat exchange system (10) further comprises a compressor (105), a receiver-drier (106), a throttle valve (107) and a water pump (108), the heat exchanger (101) comprises a first passage, and the compressor (105), the condenser (104), the receiver-drier (106), the throttle valve (107) and the first passage are sequentially communicated in a circulation manner through the connecting pipe (102) to form the refrigerant circulation loop;
the battery thermal management device further comprises a shell (30), the heat exchange system (10), the power supply part (201), the frequency converter (202), the mounting part (203) and the heat dissipation assembly (204) are mounted in the shell (30), the shell (30) comprises a bottom plate (301) and a first lateral supporting part (302) and a second lateral supporting part (303) which are connected to two opposite sides of the bottom plate (301), the fan (103) and the condenser (104) are connected with the first lateral supporting part (302), the first lateral supporting part (302) and the second lateral supporting part (303) are arranged oppositely along the exhaust direction (X) of the fan (103), the heat exchanger (101), the throttle valve (107), the water pump (108), the power supply part (201), the frequency converter (202), the mounting part (203) and the heat dissipation assembly (204) are arranged close to the second lateral supporting part (303) 303) The compressor (105) and the receiver-drier (106) are both arranged between the condenser (104) and the heat exchanger (101).
6. The battery thermal management device according to claim 5, characterized in that the housing (30) further comprises a third lateral support (304), both ends of the third lateral support (304) being connected to the first lateral support (302) and the second lateral support (303), respectively, the third lateral support (304) being located on a side of the mounting portion (203) remote from the heat exchange system (10) in a direction (X) perpendicular to the exhaust direction of the fan (103);
the electronic control system (20) further comprises a controller (205), the controller (205) can control the working state of the heat exchange system (10), and the controller (205) is installed on the third lateral support portion (304).
7. The battery thermal management device according to claim 5, characterized in that the heat exchange system (10) further comprises a liquid inlet pipe (109), a first rubber hose (110) and a second rubber hose (111), the heat exchanger (101) further comprises a second channel, the battery pack and the second channel are sequentially communicated with the water pump (108) in a circulating manner to form a cooling liquid circulating loop, and the cooling liquid can flow in the cooling liquid circulating loop;
the second channel is communicated with the water pump (108) through the first rubber hose (110), the water pump (108) is communicated with the battery pack through the second rubber hose (111), and the battery pack is communicated with the second channel through the liquid inlet pipe (109).
8. The battery thermal management apparatus of claim 7, wherein the liquid inlet pipe (109) is located on a side of the heat exchanger (101) facing the battery pack, the liquid inlet pipe (109) being integrally formed with the heat exchanger (101).
9. The battery thermal management apparatus of claim 3, wherein the electronic control system (20) further comprises a fan governor (206), the fan governor (206) being configured to regulate a wind speed of the fan (103);
the battery heat management device further comprises a mounting box (207), the mounting box (207) is connected with the mounting part (203), the power supply component (201) and the frequency converter (202) are both located in the mounting box (207), the height direction (Y) of the battery heat management device is arranged, and the fan speed regulator (206) is located above the mounting box (207) and connected with the outer side wall of the mounting box (207).
10. A vehicle comprising the battery thermal management apparatus of any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220011496.2U CN216903126U (en) | 2022-01-05 | 2022-01-05 | Battery heat management device and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220011496.2U CN216903126U (en) | 2022-01-05 | 2022-01-05 | Battery heat management device and vehicle |
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| Publication Number | Publication Date |
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| CN216903126U true CN216903126U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039268A (en) * | 2023-10-09 | 2023-11-10 | 深圳博海瑞能有限公司 | Multistage distributed outdoor explosion-proof energy storage power supply |
-
2022
- 2022-01-05 CN CN202220011496.2U patent/CN216903126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117039268A (en) * | 2023-10-09 | 2023-11-10 | 深圳博海瑞能有限公司 | Multistage distributed outdoor explosion-proof energy storage power supply |
| CN117039268B (en) * | 2023-10-09 | 2024-01-19 | 深圳博海瑞能有限公司 | Multistage distributed outdoor explosion-proof energy storage power supply |
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