CN207602734U - A kind of power battery thermal management system - Google Patents
A kind of power battery thermal management system Download PDFInfo
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- CN207602734U CN207602734U CN201721741274.1U CN201721741274U CN207602734U CN 207602734 U CN207602734 U CN 207602734U CN 201721741274 U CN201721741274 U CN 201721741274U CN 207602734 U CN207602734 U CN 207602734U
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- battery
- semiconductor chilling
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model is related to a kind of power battery thermal management systems, belong to power battery technology field.The power battery thermal management system includes：Battery case, register, controller, power switch and multiple semiconductor chilling plates.Register is connect with battery case, and multiple semiconductor chilling plates are set on register, and the power end for passing through power switch and battery case connects, and controller is connect with power switch, for controlling power switch so that multiple semiconductor chilling plates freeze.Multiple phase change components and multiple battery components are provided in battery case, the temperature sensor being connect with controller is provided in each phase change component.Register includes：Hollow plate and multiple heat pipes, hollow plate are filled under vacuum conditions with coolant, and one end of each heat pipe is connected with the hollow plate, and the other end is closed and is embedded in inside battery case.The utility model has the advantages that simple in structure, radiating efficiency is high, easily controllable, light-weight, at low cost, function admirable.
Description
Technical field
The utility model belongs to power battery technology field, and in particular to a kind of power battery thermal management system.
Background technology
Power battery is one of core component of electric vehicle, and power, the power battery one of electric vehicle are provided for vehicle
As by monomer composition module, battery pack is being formed by module, its service life, working efficiency and safety are all direct or indirect
Ground is influenced by temperature, and therefore, to improve its performance and safety, it is necessary to by the control of its operating temperature within zone of reasonableness.
Due to its internal chemical reaction, a large amount of heat can be released, such as electrochemical reaction heat production, internal polarization reaction heat production and Joule heat
Deng, if these heats cannot shed in time, can make its electrolyte catch fire cause fire even explode, harm using peace
Entirely.Current driving force battery is radiated mostly using air-cooled structure or liquid cooled structure.Wherein air cooling structure is simple, into
This is relatively low, and application is relatively broad.But its heat exchange efficiency is low, heat dissipation is uneven, and is susceptible to what air duct was blocked by dust
Situation.Liquid cooled structure heat exchange efficiency is high, can meet cooling requirements of the battery in high power charging-discharging, play battery
Optimum performance.But research currently for power battery liquid cooled structure and immature, the heat exchange efficiency of cooling structure is not
It is high.At present, the air-cooled structure of use or liquid cooled structure are there are system complex, radiating efficiency are low, module internal temperature
The problems such as uneven, so as to directly affect the performance of battery, service life and the safety and reliability of system.
Utility model content
In consideration of it, the purpose of this utility model is to provide a kind of power battery thermal management system, on effectively improving
State problem.
What the embodiment of the utility model was realized in：
The utility model embodiment provides a kind of power battery thermal management system, including：Battery case, register, control
Device processed, power switch and multiple semiconductor chilling plates.The register is connect with the battery case, the multiple semiconductor system
Cold is set on the register, and passes through the power switch and connect with the power end of the battery case, the control
Device is connect with the power switch, for controlling the power switch so that the multiple semiconductor chilling plate freezes.The electricity
Multiple phase change components and multiple battery components are provided in the case of pond, the multiple battery component and the multiple phase change component are mutual
Be staggered, wherein, be provided with a temperature sensor in each phase change component, each temperature sensor with it is described
Controller connects.The register includes：Hollow plate described in hollow plate and multiple heat pipes is filled out under vacuum conditions with coolant
2/3rds of its volume are filled, one end of each heat pipe is connected with the hollow plate, and the other end is closed and is embedded in institute
It states inside battery case, so that the coolant flows to the other end of the heat pipe from one end of each heat pipe, and then by institute
State the heat derives inside battery case.
In the utility model preferred embodiment, the hollow plate includes：First side and second side, described first
Side and the second side are opposite face, and multiple semiconductor chilling plates are arranged at intervals in the first side, described
Multiple semiconductor chilling plates are arranged at intervals in second side.
In the utility model preferred embodiment, multiple semiconductor chilling plates for being set in the first side
It is interlaced with multiple semiconductor chilling plates for being set in the second side.
In the utility model preferred embodiment, the power battery thermal management system further includes：With the multiple half
The identical radiator of conductor cooling piece quantity, each radiator correspond to a semiconductor chilling plate, for for
The semiconductor chilling plate radiates.
In the utility model preferred embodiment, each radiator includes：Radiating block and radiator fan, institute
It states radiator fan to be set on the radiating block, the opposite side of the radiating block is connect with the semiconductor chilling plate.
In the utility model preferred embodiment, the register further includes：It is set to more in the hollow plate
A radiating fin, the multiple radiating fins being set in the first side and the multiple institutes being set in the first side
It states that semiconductor chilling plate is interlaced, the multiple radiating fins being set in the second side and is set to the second side
Multiple semiconductor chilling plates on face are interlaced.
In the utility model preferred embodiment, each radiating fin is made of multiple hollow out cooling fins
The radiating fin of alternating expression rasterizing shape.
In the utility model preferred embodiment, the battery component is N number of, and the phase change component is N+1, N number of
The battery component and the N+1 interlaced settings of phase change component, and both ends are the phase change component.
In the utility model preferred embodiment, the power battery thermal management system further includes：Insulating layer, the guarantor
Warm layer is set on the inner wall of the battery case.
In the utility model preferred embodiment, the power battery thermal management system further includes：Fireprotection layer, it is described anti-
Fire bed is set on the insulating layer far from the battery chamber interior wall.
The power battery thermal management system that the utility model embodiment provides, passes through regulating device and semiconductor chilling plate coupling
The dual conductive force of mode and phase change component of conjunction, can be effectively by the heat derives inside battery case.Outside battery case
It is coupled by register with semiconductor chilling plate, when the temperature of internal system is within the temperature range of phase change component can store
When, semiconductor chilling plate does not work, and system leans on the heat conduction and heat radiation function of heat pipe combination hollow plate and phase-change material itself energy storage
System temperature is adjusted in performance.When internal battery pack temperature is higher than phase change component phase transition temperature, startup power supply switch, with
Semiconductor chilling plate is made to freeze, semiconductor chilling plate freezes to the hollow plate of register, by using heat pipe as heat bridge, and then
Can control effectively to temperature in battery pack, and semiconductor chilling plate efficiency is higher, can in time, on demand to internal battery pack
Temperature carries out active control.The utility model has that simple in structure, radiating efficiency is high, temperature equalization is good between single battery, easily
In control, convenient processing and manufacture, light-weight, at low cost, function admirable, and can improve battery component entirety energy density,
The safety and reliability of performance, service life and system.
Other feature and advantage of the utility model will illustrate, also, in subsequent specification partly from specification
It becomes apparent or is understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
It realizes and obtains by specifically noted structure in the specification, claims and attached drawing write.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.By the way that shown in attached drawing, the above and other purpose, feature and advantage of the utility model will more
Clearly.Identical reference numeral indicates identical part in whole attached drawings.Do not painted by actual size equal proportion scaling deliberately
Attached drawing processed, it is preferred that emphasis is show the purport of the utility model.
Fig. 1 shows a kind of structure at the first visual angle of power battery thermal management system that the utility model embodiment provides
Schematic diagram.
Section A-A sectional view in the Fig. 1 provided Fig. 2 shows the utility model embodiment.
Fig. 3 shows the section B-B sectional view in Fig. 1 that the utility model embodiment provides.
Fig. 4 shows a kind of structure at the second visual angle of power battery thermal management system that the utility model embodiment provides
Schematic diagram.
Fig. 5 shows a kind of module diagram for power battery thermal management system that the utility model embodiment provides.
Icon：10- power battery thermal management systems；11- battery cases；111- babinets；112- insulating layers；113- prevents
Fire bed；114- phase change components；115- battery components；12- registers；121- hollow plates；1211- first sides；
1212- second sides；122- heat pipes；123- radiating fins；13- controllers；14- power switches；15- semiconductor systems
Cold；16- radiators；161- radiating blocks；162- radiator fans.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right",
The orientation or position relationship of the instructions such as " interior ", " outer " are new based on orientation shown in the drawings or position relationship or the practicality
Type product using when the orientation usually put or position relationship, be for only for ease of description the utility model and simplify and describe, and
It is not instruction or implies signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not intended that the limitation to the utility model.In addition, term " first ", " second " etc. are only used for distinguishing description, and cannot manage
It solves to indicate or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
The utility model embodiment provides a kind of power battery thermal management system 10, please refers to Fig.1, Fig. 3 and Fig. 5.It should
Power battery thermal management system 10 includes：Battery case 11, register 12, controller 13, power switch 14, semiconductor chilling plate
15 and radiator 16.
As shown in Fig. 2, the battery case 11 includes：Babinet 111 and the multiple battery components 115 being set in babinet 111
With multiple phase change components 114.The material of the babinet 111 can there are many, in this present embodiment, it is preferable that the babinet 111 be carbon
Fiber Materials are made, and since carbon fiber has " soft outside but hard inside ", quality is lighter than metallic aluminium, but intensity is higher than steel, and has
There is corrosion-resistant, high-modulus characteristic, so as to achieve the effect that protect battery, for example, battery component 115 can be prevented effectively
By external impact and the danger brought by water submerged.
In order to which the working environment for ensureing battery tends towards stability, as a kind of embodiment, it is preferable that the power battery heat management
System 10 further includes：The insulating layer 112 being set on 111 inner wall of babinet.The material of the insulating layer 112 can there are many,
In this present embodiment, it is preferable that the insulating layer 112 is made of rigid polyurethane foam material.Due to hard polyaminoester
Foamed plastics is mostly hole-closing structure, has that insulation effect is good, light-weight, specific strength is big, the good characteristics such as easy for construction, simultaneously also
There is sound insulation, shockproof, electrical isolation, heat-resisting, cold-resistant, solvent resistant, and then can ensure that the working environment of battery tends to be steady
It is fixed.
In order to prevent battery collide in use it is on fire explosion etc. occurs, as a kind of embodiment, preferably
Ground, the power battery thermal management system 10 further include：It is set on the insulating layer 112 far from 11 inner wall of battery case
Fireprotection layer 113.The material of the fireprotection layer 113 can there are many, for example, it may be polyvinyl chloride, epoxy resin etc..
Wherein, the multiple battery component 115 and the multiple phase change component 114 is interlaced is set to the babinet 111
Interior, further, the quantity of the phase change component 114 is N number of, and the quantity of phase change component 114 is N+1, N number of battery pack
Part 115 and the N+1 114 interlaced settings of phase change component, and both ends are the phase change component 114.In order to more preferably manage
Solution, by taking 3 battery components 115 and 4 phase change components 114 as an example, illustrates, i.e., according to phase change component 114, battery component
115th, the arrangement mode of phase change component 114, battery component 115, phase change component 114, battery component 115 and phase change component 114 is set
It puts.Wherein, N is positive integer, and particular number is needed depending on actual design, is not limited thereto.
Wherein, each battery component 115 is in series by multiple single batteries, for example, single battery can be 18650 types
Dynamic lithium battery.
Wherein, each phase change component 114 is made, and interior of phase-change material (PhaseChangeMaterials, PCM)
Portion is inlaid with a temperature sensor (not shown).Further, it is 45 DEG C by phase transition temperature as a kind of embodiment
Paraffin, expanded graphite and heat conductive silica gel are combined.For example, by paraffin melting, the expanded graphite that mass ratio is 20% is added in, into
Row be sufficiently stirred, make the abundant Adsorption Paraffin of the expanded graphite, add mass ratio be 5% heat conductive silica gel and be sufficiently stirred, obtain
To paraffin graphite heat conducting silica gel composite phase-change material, by designed specific mold, in the environment of 25 degrees Celsius, by this
Paraffin graphite heat conducting silica gel composite phase-change material, which squeeze, makes it more enrich, and insertion temperature sensor in place,
To detect the temperature of phase-change material, it is finally made to be fully cooled molding, you can to obtain the phase change component 114.Wherein, in order to carry
The plasticity of the high phase change component 114 is making compared to during component, can also Aluminum Honeycomb Cores be immersed in graphite paraffin
In heat conductive silica gel composite phase-change material, it is made to fully absorb paraffin solution, then squeeze by specific mold to obtain phase transformation group
Part 114 makes it easier to be molded, firmer, it is not easy to which damaged, Aluminum Honeycomb Cores can effectively improve multiple as phase-change material skeleton
The mechanical performance of phase-change material is closed, improves the thermal conductivity of composite phase-change material entirety, can effectively shorten the phase of whole phase-change material
Become the time, meanwhile, the mixing of expanded graphite and paraffin improves the heat conductivility in Aluminum Honeycomb Cores inner hole part phase-change material,
It ensure that phase-change material can simultaneously or almost simultaneously melt, this has important meaning to the temperature uniformity for promoting whole phase-change material
Justice by this method, can effectively promote the temperature uniformity in battery component 115 between each single battery.
Wherein, which can be stored up the heat that battery component 115 radiates in use in the form of phase transformation
It stores away, can be released heat by phase transformation when battery needs heating.
Wherein, in this present embodiment, the temperature sensor can be common temperature measurement component on the market at present.For example,
Thermocouple, thermistor, resistance temperature detector (RTD) and IC temperature sensors etc..For example, select DS18B20 temperature sensing
Device, since DS18B20 temperature sensors can bought on the market, and DS18B20 temperature sensors can be purchased by people
It buys and uses, specific occupation mode is inevitable known to the public, for example, the specific function of how setting each pin, such as
Connection of what each pin of setting and other equipment etc..
The quantity of the semiconductor chilling plate 15 is multiple, is set on the register 12, for freezing to battery case 11.
Wherein, semiconductor chilling plate 15 is also thermoelectric module, is a kind of heat pump, is the tool that a heat is transmitted.Utilize semiconductor material
The Peltier effects of material, when the galvanic couple that direct current is connected by two kinds of different semi-conducting materials, at the both ends of galvanic couple
Heat is absorbed respectively and releases heat further, is coupled to when one piece of N-type semiconductor material and one piece of p-type semiconductor material
Have in thermocouple pair electric current by when, heat transfer will be generated between both ends, heat will be transferred to the other end from one end, from
And generate the temperature difference and form hot and cold side, you can to control the fever of the semiconductor chilling plate 15 by controlling thermocouple current direction
Or refrigeration, so as to ensure that the temperature environment inside battery case 11 tends towards stability.Wherein, each semiconductor chilling plate 15 passes through electricity
Source switch 14 is connect with the power end of battery case 11.
Wherein, as a kind of embodiment, which is relay, i.e., each semiconductor chilling plate 15 it is positive and negative
The normally opened contact with the relay is held to connect, further, the positive terminal of the semiconductor chilling plate 15 is with opening contact just
Extreme connection, the negative pole end of the semiconductor chilling plate 15 and the negative pole end of normally opened contact connect, the control terminal of the power switch 14
(coil) is connect with controller 13, and the common of the power switch 14 is connect with the power end of battery case 11, the relay
Normally-closed contact is grounded.When relay is in first state, i.e., when normally-closed contact is connected with common, if the semiconductor system
Cold 15 one end being in contact with register 12 is cold end, and one end far from register 12 is hot junction, can be at this time
Battery case 11 freezes；When relay is in the second state, i.e., when normally opened contact is connected with common end, semiconductor chilling plate at this time
15 stop refrigeration.
Wherein, the process of refrigerastion of semiconductor chilling plate 15 is illustrated with schematic diagram shown in fig. 5.
The controller 13 controls power switch 14 to be in first state or second by the temperature that temperature sensor detects
State ensures that the temperature environment inside battery case 11 tends towards stability.Further, when temperature is less than first threshold, the controller
13 control the power switch 14 to be in the second state, and the stopping of semiconductor chilling plate 15 continues to freeze, when temperature is higher than second threshold
When, control power switch 14 is in first state, freezes for battery case 11.In order to make it easy to understand, in the present embodiment, will illustrate into
Row explanation.Assuming that under normal circumstances, between the temperature inside the battery case 11 is 30 degrees Celsius to 45 degrees Celsius, when temperature height
When 45 degrees Celsius, control power switch 14 is at first state, so that semiconductor chilling plate 15 freezes, reaches to battery
The purpose that case 11 cools down, when temperature is less than 35 degrees Celsius, control power switch 14 is at the second state, semiconductor system
Cold 15 stopping continues to freeze.
Wherein, above state the temperature enumerated be merely to illustrate that controller 13 according to the temperature that temperature sensor detects come
The process of power switch 14 is controlled, it is the limitation to the utility model that can not be understood as its actual temp value, specific temperature
Degree depends on actual needs, it is above-mentioned in first threshold and second threshold be also to set according to actual needs, and cannot will
It is understood as being the restriction to the utility model, and such as by above-mentioned example, which can be 35 degrees Celsius, the second threshold
Value can be 45 degrees Celsius and be understood as being the limitation to the utility model.
Wherein, above-mentioned controller 13 can be a kind of chip for having signal handling capacity, for example, it may be general place
Device is managed, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc.；It can also be digital signal processor (Digital Signal Processing, DSP), special collection
Into circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array
(FieldProgrammable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor are patrolled
Collect device, discrete hardware components.Wherein, general processor can be microprocessor or can also be any conventional processor
Deng.In this present embodiment, it is preferable that the controller 13 can be the microprocessor of TMS320LF2812 models, and the model
Microprocessor can be bought and used by people, and specific occupation mode is inevitable known to the public, for example, it is specific such as
The function of what each pin of setting, the connection how each pin and other equipment are set etc..
The register 12 is used for the temperature of regulating cell case 11, makes its operating temperature regional stability, with as far as possible
Ensure the performance and service life of the system.In this present embodiment, it is preferable that the register 12 includes：Hollow plate 121,
Multiple heat pipes 122 and multiple radiating fins 123.
The shape of the hollow plate 121 can there are many, in this present embodiment, it is preferable that the shape of the hollow plate 121 is
Cuboid, internal is hollow structure, and filled under vacuum conditions with coolant.In this present embodiment, as shown in figure 4,
The hollow plate 121 includes：First side 1211 and second side 1212, wherein, first side 1211 and second side 1212 are
Opposite face.
Multiple semiconductor chilling plates 15 and multiple radiating fins 123 are arranged at intervals in first side 1211, it is preferable that
The 123 interlaced setting of multiple semiconductor chilling plates 15 and multiple radiating fins.It in order to make it easy to understand, might as well be by the first side
1211 are divided into the even number region marked as 1,3,5 ... odd zones and marked as 2,4,6 ....Wherein, if heat radiating fin
Piece 123 is set to even number region, then semiconductor chilling plate 15 is set to odd zone, if radiating fin 123 is set to odd number area
Domain, then semiconductor chilling plate 15 be set to even number region.
Multiple semiconductor chilling plates 15 and multiple radiating fins 123 are arranged at intervals in second side 1212, it is preferable that
The 123 interlaced setting of multiple semiconductor chilling plates 15 and multiple radiating fins.It in order to make it easy to understand, might as well be by the second side
1212 are divided into the even number region marked as 1,3,5 ... odd zones and marked as 2,4,6 ....Wherein, if heat radiating fin
Piece 123 is set to even number region, then semiconductor chilling plate 15 is set to odd zone, if radiating fin 123 is set to odd number area
Domain, then semiconductor chilling plate 15 be set to even number region.
Wherein, as a kind of embodiment, the multiple semiconductor chilling plates being set in the first side 1211
15 is interlaced with multiple semiconductor chilling plates 15 for being set in the second side 1212.That is first side 1211
On even number region and the division of odd zone it is identical with the division of the even number region in second side 1212 and odd zone,
That is quantity and size all same, for example, being 3 odd zones and three number regions.
Wherein, in addition to being set in the first side 1211 (left side) of the hollow plate 121 and second side 1212 (right side)
It is equipped with outside multiple radiating fins 123, which can also be set in remaining region, for example, before hollow plate 121
Two sides set the radiating fin 123 afterwards.The structure of the radiating fin 123 can there are many, in this present embodiment, it is preferable that
Each radiating fin 123 is the radiating fin of alternating expression rasterizing shape being made of multiple hollow out cooling fins, so as to coolant
Condensing reflux is so as to enhance 122 heat conduction of heat pipe and heat-sinking capability.
The one end open of each heat pipe 122, other end closing, in this present embodiment, one end of each heat pipe 122 with
The hollow plate 121 connects, and the other end is embedded in inside the battery case 11, further, the phase being embedded in inside battery case 11
Become material, when making, first heat pipe 122 is fixed, then pours paraffin graphite heat conducting silica gel composite phase-change material into mold
In, so that heat pipe 122 is fixed in the phase-change material.The material of the heat pipe 122 can there are many, such as can be that thermal conductivity is excellent
Good copper pipe.Wherein it is preferred to the quantity of heat pipe 122 inlayed in each phase change component 114 is 2, i.e., in phase-change material
A heat pipe 122 is respectively inlayed (in the pole position that battery component 115 generates heat more) in both sides.
Wherein, when the temperature in battery case 11 is higher than second threshold, startup power supply switch 14 is at the first shape
State so that semiconductor chilling plate 15 freezes, achievees the purpose that cool down to battery case 11, further, at this point, semiconductor chilling plate
15 freeze to hollow plate 121, so that the temperature for the coolant being filled in the hollow plate 121 is reduced so as to take away battery case 11
Internal heat, heat can be transmitted by heat pipe 122 itself or be transmitted by coolant, make its heat from heat
One end that the other end (being embedded in 11 phase change component 114 of battery case) of pipe 122 flows to heat pipe 122 (is connected with hollow plate 121
One end), and then by the heat derives inside the battery case 11.
Wherein, one end of the heat pipe 122 can be disposed on what is connected in hollow plate 121 and with hollow plate 121, also may be used
To be disposed on what is connected on radiating fin 123 and with hollow plate 121.It is heat bridge with the heat pipe 122, it can accurately and timely effectively
Ground exports waste heat from 11 inside of battery case, and especially in battery pack thermal runaway, semiconductor chilling plate 15 can have
Effect radiates to battery pack.
Wherein, in order to accelerate the refrigeration effect of the system, which further includes：Radiator
16, for radiating for semiconductor chilling plate 15.In this present embodiment, it is preferable that the quantity of the radiator 16 and semiconductor system
The quantity of cold 15 is identical.One of radiator 16 corresponds to a semiconductor chilling plate 15.In this present embodiment, such as Fig. 1
Shown, which includes：Radiating block 161 and radiator fan 162.The radiator fan 162 is set to the radiating block
On 161, the opposite side of the radiating block 161 is connect with the semiconductor chilling plate 15.Further, radiating block 161 and half
The heating surface of conductor cooling piece 15 is connected, and connection mode can be connected by way of bonding, for example, passing through thermal conductive silicon
Glue connection.When temperature inside battery case 11 is higher than second threshold, startup power supply switch 14 is at first state, with
Semiconductor chilling plate 15 is made to freeze, achievees the purpose that cool down to battery case 11, at this time semiconductor chilling plate 15 and register 12
The one side being in contact is cold end, and the one side contacted with radiating block 161 is hot junction, starts radiator fan 162 at this time by its hot junction
Heat disperses, and cold junction temperature can also decline accordingly, so as to reach lower temperature, can accelerate the effect of refrigeration.
In conclusion the power battery thermal management system that the example of the utility model provides, passes through regulating device and semiconductor
The mode of cooling piece coupling, is led using phase change component made of Aluminum Honeycomb Cores, composite phase-change material and the triple of radiator
Heat effect, can be effectively by the heat derives inside battery case.Pass through register and semiconductor chilling plate outside battery case
Coupling, due to effective optimum working temperature that 30 DEG C to 45 DEG C are power battery, phase change component phase transition temperature is 45 DEG C, when
The temperature of internal system is when within the temperature range of phase change component can store, i.e., when internal system temperature is without departing from 45 DEG C, half
Conductor cooling piece does not work, and system leans on the heat conduction and heat radiation function of heat pipe combination hollow plate and phase-change material itself energy-storage property pair
System temperature is adjusted.When internal battery pack temperature be higher than phase change component phase transition temperature when 45 DEG C, startup power supply switch so that
Semiconductor chilling plate freezes, and semiconductor chilling plate freezes to the hollow plate of register, by using heat pipe as heat bridge, Jin Erneng
Control effectively to temperature in battery pack, and semiconductor chilling plate efficiency is higher, can in time, on demand to internal battery pack temperature
Degree carries out active control.The utility model has that simple in structure, radiating efficiency is high, temperature equalization is good between single battery, is easy to
Control, convenient processing and manufacture, light-weight, at low cost, function admirable, and the energy density of battery component entirety, property can be improved
The safety and reliability of energy, service life and system.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of power battery thermal management system, which is characterized in that including：Battery case, register, controller, power switch
With multiple semiconductor chilling plates, the register is connect with the battery case, and the multiple semiconductor chilling plate is set to institute
It states on register, and passes through the power switch and connect with the power end of the battery case, the controller and the power supply
Switch connection, for controlling the power switch so that the multiple semiconductor chilling plate freezes；
Multiple phase change components and multiple battery components, the multiple battery component and the multiple phase are provided in the battery case
Become the interlaced setting of component, wherein, a temperature sensor is provided in each phase change component, each temperature sensing
Device is connect with the controller；
The register includes：Hollow plate and multiple heat pipes, the hollow plate fill its appearance with coolant under vacuum conditions
Long-pending 2/3rds, one end of each heat pipe are connected with the hollow plate, and the other end is closed and is embedded in the battery
Inside case, so that the coolant flows to the other end of the heat pipe from one end of each heat pipe, and then by the battery
Heat derives inside case.
2. power battery thermal management system according to claim 1, which is characterized in that the hollow plate includes：First side
Face and second side, the first side and the second side are opposite face, are arranged at intervals in the first side multiple
The semiconductor chilling plate is arranged at intervals with multiple semiconductor chilling plates in the second side.
3. power battery thermal management system according to claim 2, which is characterized in that be set in the first side
Multiple semiconductor chilling plates and the multiple semiconductor chilling plates being set in the second side are interlaced.
4. according to the power battery thermal management system described in claim 1-3 any one, which is characterized in that the power electric
Pond heat management system further includes：The radiator identical with the multiple semiconductor chilling plate quantity, each radiator
A corresponding semiconductor chilling plate, for radiating for the semiconductor chilling plate.
5. power battery thermal management system according to claim 4, which is characterized in that each radiator wraps
It includes：Radiating block and radiator fan, the radiator fan are set on the radiating block, the opposite side of the radiating block and described half
Conductor cooling piece connects.
6. power battery thermal management system according to claim 2, which is characterized in that the register further includes：If
The multiple radiating fins being placed in the hollow plate are set to multiple radiating fins in the first side with being set to
Multiple semiconductor chilling plates in the first side are interlaced, the multiple heat dissipations being set in the second side
Fin and the multiple semiconductor chilling plates being set in the second side are interlaced.
7. power battery thermal management system according to claim 6, which is characterized in that each radiating fin is served as reasons
The radiating fin for the alternating expression rasterizing shape that multiple hollow out cooling fins are formed.
8. power battery thermal management system according to claim 1, which is characterized in that the battery component is described to be N number of
Phase change component is N+1, N number of battery component and the N+1 interlaced settings of phase change component, and both ends are described
Phase change component.
9. power battery thermal management system according to claim 1, which is characterized in that the power battery thermal management system
It further includes：Insulating layer, the insulating layer are set on the inner wall of the battery case.
10. power battery thermal management system according to claim 9, which is characterized in that the power battery heat management system
System further includes：Fireprotection layer, the fireprotection layer are set on the insulating layer far from the battery chamber interior wall.
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| CN201721741274.1U CN207602734U (en) | 2017-12-13 | 2017-12-13 | A kind of power battery thermal management system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959090A (en) * | 2017-12-13 | 2018-04-24 | 西安科技大学 | A kind of power battery thermal management system |
| CN109301368A (en) * | 2018-10-18 | 2019-02-01 | 瞿志刚 | New-energy electric vehicle battery integrated thermal management system and control method |
| CN113764808A (en) * | 2020-06-02 | 2021-12-07 | 广州汽车集团股份有限公司 | Battery heat management device and automobile |
-
2017
- 2017-12-13 CN CN201721741274.1U patent/CN207602734U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107959090A (en) * | 2017-12-13 | 2018-04-24 | 西安科技大学 | A kind of power battery thermal management system |
| CN109301368A (en) * | 2018-10-18 | 2019-02-01 | 瞿志刚 | New-energy electric vehicle battery integrated thermal management system and control method |
| CN113764808A (en) * | 2020-06-02 | 2021-12-07 | 广州汽车集团股份有限公司 | Battery heat management device and automobile |
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Granted publication date: 20180710 Termination date: 20191213 |