CN209249648U - Power battery heating system - Google Patents
Power battery heating system Download PDFInfo
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- CN209249648U CN209249648U CN201920204181.8U CN201920204181U CN209249648U CN 209249648 U CN209249648 U CN 209249648U CN 201920204181 U CN201920204181 U CN 201920204181U CN 209249648 U CN209249648 U CN 209249648U
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- power battery
- relay
- heating system
- heating film
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 263
- 238000004080 punching Methods 0.000 claims abstract description 50
- 239000002344 surface layer Substances 0.000 claims abstract description 38
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 239000010410 layer Substances 0.000 claims description 17
- 239000000956 alloy Substances 0.000 claims description 9
- 239000005030 aluminium foil Substances 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 8
- 238000004026 adhesive bonding Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims 1
- 229920002379 silicone rubber Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000007747 plating Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 230000037361 pathway Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 229920000260 silastic Polymers 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- -1 Polyethylene terephthalate Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
This application involves a kind of power battery heating system, including heating relay, connected the battery pack formed, and the heating membrane module formed by each heating film cascade by each battery modules；One end of the anode electrical connection heating relay of battery pack, cathode are electrically connected the first end of heating film component；Heat the other end of the second end electrical connection heating relay of membrane module；It further include set on the punching press cold plate and multiple supporting elements between battery modules and the first surface layer of heating film；Each supporting element and each heating film correspond, second surface layer of the supporting element close to heating film.It can be realized and temperature of powered cell is quickly heated to appropriate working temperature section at low ambient temperatures, effectively improve heating efficiency, while reducing the weight of heating cost and heating system.
Description
Technical field
The utility model relates to automobile technical fields, more particularly to a kind of power battery heating system.
Background technique
Power battery used in new-energy automobile is largely lithium ion battery at present, and temperature greatly affect lithium from
The service life of sub- battery need to usually guarantee that battery work in suitable temperature range (such as 25 DEG C -35 DEG C), avoids battery because of high temperature
Or low temperature life decaying.Heating system has the function of realizing heating battery modules at low temperature, heating efficiency and mould group temperature
Difference is to measure the important indicator of heating system performance, directly influences efficiency for charge-discharge and the service life of power battery.
During realization, inventor has found that at least there are the following problems in traditional technology: for traditional heating system,
Usual heating cost is high, and weight is big, and heating efficiency is lower.
Utility model content
Based on this, it is necessary to which high for traditional usual heating cost of heating system, weight is big, and heating efficiency is lower to ask
Topic, provides a kind of power battery heating system.
To achieve the goals above, the utility model embodiment provides a kind of power battery heating system, including heating
Relay is connected the battery pack formed by each battery modules, and the heating membrane module formed by each heating film cascade；Battery pack
Anode electrical connection heating relay one end, cathode be electrically connected heating film component first end；Heat the second end of membrane module
The other end of electrical connection heating relay；
It further include set on the punching press cold plate and multiple supporting elements between battery modules and the first surface layer of heating film；
Each supporting element and each heating film correspond, second surface layer of the supporting element close to heating film.
Heating film includes the middle layer between first surface layer and second surface layer in one of the embodiments,；
First surface layer is PET insulating layer, and second surface layer is PET insulating layer, and middle layer is that copper plates aluminium foil resistance alloys.
First surface layer is connect with punching press cold plate gluing in one of the embodiments,.
It in one of the embodiments, further include the temperature sensor on second surface layer.
Supporting element has the plate face close to second surface layer in one of the embodiments,；
Plate face is equipped with for the groove for inlaying temperature sensor that coincide.
Supporting element is elastic supporting member for supporting optical member in one of the embodiments,.
Elastic supporting member for supporting optical member is foamed silastic supporting element in one of the embodiments,.
It in one of the embodiments, further include set on the heat conductive pad between battery modules and punching press cold plate.
It in one of the embodiments, further include the second end for one end and heating membrane module for being connected electrically in heating relay
Between fuse.
It in one of the embodiments, further include being connected electrically between the cathode of battery pack and the first end of heating membrane module
The negative relay of master, and the maintenance switch being connected electrically between any two battery modules.
A technical solution in above-mentioned technical proposal is had the following advantages and beneficial effects:
One end of anode electrical connection heating relay based on battery pack, cathode are electrically connected the first of the heating membrane module
End；The second end of heating membrane module is electrically connected the other end of the heating relay；Pass through the on-off of control heating relay, energy
Temperature of powered cell is quickly heated to appropriate working temperature section at low ambient temperatures by enough realize.Electricity is set to based on punching press cold plate
Between Chi Mo group and heating film, heating film is set between supporting element and punching press cold plate, is set to punching press cold plate bottom by heating film
Mode to battery modules heat, by supporting element heating film, punching press cold plate and battery modules are closely contacted with each other, mention
Good thermally conductive pathways have been supplied, and then have effectively promoted heating efficiency, while having reduced the weight of heating cost and heating system.
Detailed description of the invention
Fig. 1 is the electrical block diagram of power battery heating system in one embodiment；
Fig. 2 is the assembling structure schematic diagram of power battery heating system in one embodiment；
Fig. 3 is the structural schematic diagram of heating film in one embodiment；
Fig. 4 is the structural schematic diagram of supporting element in one embodiment；
Fig. 5 is another assembling structure schematic diagram of power battery heating system in one embodiment；
Fig. 6 is another electrical structure schematic diagram of power battery heating system in one embodiment；
Fig. 7 is the another assembling structure schematic diagram of power battery heating system in one embodiment.
Specific embodiment
The application in order to facilitate understanding is described more fully the application below with reference to relevant drawings.In attached drawing
Give the preferred embodiment of the application.But the application can realize in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to disclosure of this application.
Unless otherwise defined, all technical and scientific terms used herein and the technical field for belonging to the application
The normally understood meaning of technical staff is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
Traditional has the mode of power battery heating: ptc heater of connecting in outside batteries liquid cooling cooling circuit leads to
The mode for crossing heated cooling fluid realizes the function of heating battery, but that there are heating efficiencies is low, and external heater weight is big and cost
High problem；Increase heating film above battery modules, using additional storage battery power supply, is conducted heat by cell polar ear, but deposit
Low in heating power, heating time is long, leads to the problem that the battery low temperature charging time is long and discharge power is low；In battery modules side
Face paste heating film is conducted heat by the side plate of mould group；But the heating film heating power for being affixed on battery modules side is low, mould group side plate with
Gap between battery core causes heat-transfer path thermal resistance larger, and the battery core different parts temperature difference is big, is easy to increase battery life decaying
Speed.
And power battery heating system provided by the present application, it is equipped with by heating film and resilient support in battery modules
Heating part, the on-off of control heating relay, can be realized and quickly be heated to fitting by temperature of powered cell at low ambient temperatures
Suitable operating temperature section, is greatly improved heating efficiency；Battery modules are added in such a way that heating film is set to punching press cold plate bottom
Heat is closely contacted with each other heating film, punching press cold plate and battery modules by supporting element, provides good thermally conductive road
Diameter, and then heating efficiency is effectively promoted, while reducing the weight of heating cost and heating system.
In one embodiment, as depicted in figs. 1 and 2, a kind of power battery heating system, including heating relay are provided
Device 110, the battery pack 120 formed by the series connection of each battery modules 122, and the heating film group formed by the series connection of each heating film 132
Part 130；One end of the anode electrical connection heating relay 110 of battery pack 120, cathode are electrically connected the first of heating film component 130
End；Heat the other end of the second end electrical connection heating relay 110 of membrane module 130.It further include being set to battery modules 122 and adding
Punching press cold plate 150 and multiple supporting elements 140 between the first surface layer of hotting mask 132；Each supporting element 140 and each heating film
132 correspond, second surface layer of the supporting element 140 close to heating film 132.
Wherein, heating relay 110 refers to control that the device of circuit on-off, heating relay 110 can be fastly
Relay is filled, such as heating relay 110 can realize the on-off control to route mesohigh electricity by Small current control high current
System.Battery pack 120 refers to that the power battery pack on automobile, battery pack 120 may include multiple battery modules 122.Heating
Film 132 can be used to generate thermal energy, and heating film 132 can be electric heating film；Heating membrane module 130 may include multiple heating films 132.
Punching press cold plate 150 can be liquid cooling plate；Supporting element 140 can be used to heating film 132, punching press cold plate 150 and battery modules 122 are tight
Contiguity touching.
Specifically, one end of the anode electrical connection heating relay 110 based on battery pack 120, the negative electricity of battery pack 120
Connect the first end of the heating membrane module 130；The second end of heating membrane module 130 is electrically connected the heating relay 110
The other end；By the on-off of control heating relay 110, it can be realized and at low ambient temperatures quickly heat temperature of powered cell
To appropriate working temperature section.It is set between battery modules 122 and heating film 132 based on punching press cold plate 150, heating film 132 is set
Between supporting element 140 and punching press cold plate 150, to battery modules in such a way that heating film 132 is set to 150 bottom of punching press cold plate
122 heating, are closely contacted with each other heating film 132, punching press cold plate 150 and battery modules 122 by supporting element 140, mention
Good thermally conductive pathways are supplied.
When further, being based on each 132 tandem working of heated mould, and then breaking down in circuit loop (such as appoint
Heating film 132 of anticipating breaks down), then it may make entire circuit to disconnect work by heating relay 110, and then play guarantor
The effect for protecting heating system avoids causing the local temperature of battery pack excessively high because part heating film fails.
It should be noted that the size and shape of punching press cold plate 150 can be designed according to the actual size of battery modules 122
It arrives；The size and shape of heating film 132 can be determined according to the size and shape of punching press cold plate 150, such as the shape of heating film 132
Shape can be square structure but be not limited to the outer dimension.The size and shape of supporting element 140 can be according to the size of heating film 132
It is determined with shape, such as the shape of supporting element 140 can be square structure but be not limited to the outer dimension.
In above-mentioned power battery heating system, it is arranged by the first surface layer of heating film close to punching press cold plate, supporting element
Second surface layer close to heating film is arranged, so that heating film, punching press cold plate and battery modules are in close contact；It is heated by control
The on-off of relay, when heating relay conducting, the quick heating work of heating film is realized at low ambient temperatures quickly by power
Battery temperature is heated to appropriate working temperature section, and then effectively promotes heating efficiency, while reducing heating cost and heating
The weight of system.
In one embodiment, as shown in figure 3, being the structural schematic diagram of heating film.Heating film 132 includes being located at the first table
Middle layer between surface layer and second surface layer；First surface layer be PET (Polyethylene terephthalate, gather pair
Ethylene terephthalate) insulating layer, second surface layer is PET insulating layer, and middle layer is that copper plates aluminium foil resistance alloys.
Wherein, PET insulating layer is respectively adopted in first surface layer and second surface layer, plays insulating effect, so that heating system
System safe operation.Copper plating aluminium foil resistance alloys refers to that the resistance of copper plating aluminium foil alloy material, copper plating aluminium foil resistance alloys refer to
It is a kind of stratie.
Specifically, it is set between two PET insulating layers based on copper plating aluminium foil resistance alloys and constitutes heating film 132, by adding
Hotting mask 132 is equipped between punching press cold plate and supporting element, and when heating relay conducting, battery pack is powered to heating film, Jin Erjia
Plating aluminium foil resistance alloys in hotting mask 132 quickly generates heat.
In one example, it can be synthesized and be added by fire-retardant glue between first surface layer, middle layer and second surface layer
Hotting mask.Such as the thickness of heating film can be, but not limited to be 0.5mm, the resistance value of copper plating aluminium foil resistance alloys can be 12 ohm,
Maximum heating power is 900W, maximum current 9A.By the on-off of control heating relay, when heating relay conducting,
Temperature of powered cell is quickly heated to appropriate working temperature section at low ambient temperatures by the quick heating work of heating film, realization,
Such as the power battery heating system based on this application, it can be realized battery pack temperature DEG C needs 9 minutes from -20 DEG C to 5,
And the heating time of traditional heating system is 50 minutes, and then effectively increases heating efficiency.
In one embodiment, first surface layer is connect with punching press cold plate gluing.
Specifically, the first surface layer gluing of heating film connects punching press cold plate, such as can be by fire retardant glue by heating film
First surface layer, so that heating film is fixed to each other with punching press cold plate, prevents heating film from generating together with punching press cold plate gluing
Displacement, improves the reliability of heating system.
It in one embodiment, further include being set to heating film as shown in figure 3, providing a kind of power battery heating system
Temperature sensor 134 on 132 second surface layer.
Wherein, temperature sensor 134 can be used to measure the heat of the generation of heating film 132.
Specifically, it is controlled by heating the heating on-off of relay 110, so that when heating relay conducting, heating film
Quick heating work, realization temperature of powered cell is quickly heated to appropriate working temperature section at low ambient temperatures, by
Temperature sensor 134 is arranged in the second surface layer of heating film 132, can monitor heating film surface temperature in real time, guarantees heated
The security reliability of journey.
Further, temperature sensing can be connected by BMU (Battery Management Unit, battery management unit)
Device 134, and then the temperature data that measurement obtains can be transferred to BMU by temperature sensor 134, can monitor heating process by BMU
The temperature of middle battery modules 122 and heating film 132, and then can be realized the highest temperature that real time monitoring battery modules 122 heat
Degree and the temperature difference.Such as temperature sensor 134 measures obtained temperature data can be used to indicate the highest temperature on 132 surface of heating film
Degree, by the safety for monitoring 132 heating process of maximum temperature promise heating film.When temperature data is limited beyond maximum temperature
Value, immediately disconnect heating relay 110 terminate heating, realization quickly temperature of powered cell is heated at low ambient temperatures be suitable for
Heating efficiency is being improved, while ensure that the safety of heating process in operating temperature section.
It should be noted that heating film 132 can be electrically connected by low-voltage line with BMU, heating film 132 and heating film 132 it
Between can be electrically connected by high-voltage line.
Further, temperature sensor 134 can be attached to the second surface layer of heating film 132, Jin Erke by foam
Temperature sensor 134 is avoided to fall off and wear.In one example, the radius of foam can be, but not limited to be 9mm.
In one embodiment, as shown in figure 4, supporting element 140 has the plate of the second surface layer close to heating film 132
Face；Plate face is equipped with for the groove 142 for inlaying temperature sensor 134 that coincide.
Specifically, it by the way that groove 142 is arranged in 140 plate face of supporting element, enables to temperature sensor 134 to coincide and inlays
Embedding, the shape of groove 142 can be determined according to the shape of temperature sensor 134.Based on the hollow design on supporting element 140, i.e.,
The groove 142 of temperature sensor 134 is inlayed by being designed for coincideing on supporting element 140, and then temperature sensing can be protected
Device 134 by installation compressing force, does not improve the degree of fitting closely between punching press cold plate, heating film and battery modules.
In one embodiment, as shown in figure 4, supporting element 140 is elastic supporting member for supporting optical member.
Specifically, elastic supporting member for supporting optical member can be used to provide compression and back elastic force, can make heating film and punching press by elastic supporting member for supporting optical member
Cold plate is in close contact, and prevents bubble；Simultaneously elastic supporting member for supporting optical member provide compression and back elastic force by punching press cold plate, heating film and electricity
Chi Mo group is in close contact, and heats for power battery and cooling provides good thermally conductive pathways.
Further, elastic supporting member for supporting optical member is foamed silastic supporting element.Wherein, the thickness of foamed silastic supporting element can be with
It is 8mm.
In one embodiment, as shown in figure 5, further including set on thermally conductive between battery modules 122 and punching press cold plate 150
Pad 160.
Wherein, heat conductive pad 160 can be used to improve heat transmission rate, such as heat conductive pad 160 can be insulating heat-conductive pad.Base
It is set between battery modules 122 and punching press cold plate 150 in heat conductive pad 160, heating film 132 is set to punching press cold plate 150 and supporting element
Between 140, by the rebound effect of supporting element 140, so that heating film 132, punching press cold plate 150, heat conductive pad 160 and battery mould
Group 122 is in close contact between each other, and then when heating relay conducting, is realized at low ambient temperatures quickly by power battery temperature
Degree is heated to appropriate working temperature section, is improving heating efficiency, and reduce heating without influence for the structure of primary battery packet
The weight of cost and heating system.
It in one embodiment, further include being connected electrically in add as shown in fig. 6, providing a kind of power battery heating system
Fuse 170 between one end of electrothermal relay 110 and the second end for heating membrane module 130.
Specifically, fuse 170 refers to the guard block for being able to carry out overload or short circuit.It is electrically connected based on fuse 170
It connects between one end of heating relay 110 and the second end of heating membrane module 130, overload occurs in heating system or route is short
Lu Shi, corresponding circuit can automatically cut off power supply, to ensure that high pressure accessory device is not damaged, guarantee automobile and driver and passenger
Safety, and then improve the reliability of heating system.
In one embodiment, as shown in fig. 6, further including the cathode and heating membrane module 130 for being connected electrically in battery pack 120
First end between the negative relay 180 of master, and the maintenance switch 190 being connected electrically between any two battery modules 122.
Specifically, the cathode and the first of heating membrane module 130 of battery pack 120 is connected electrically in based on the negative relay 180 of master
Between end, it can be realized effective control to positive and negative electrode circuit, improve the safety of heating system.Based on 190 electricity of maintenance switch
It is connected between any two battery modules 122, when needing to repair heating system, service switch 190 can be broken
It opens, and then can further improve the security performance of entire heating system.
In one embodiment, a kind of power battery heating system is provided, as shown in fig. 6, for power battery heating system
The electrical structure schematic diagram of system, one end of the anode electrical connection heating relay 110 of battery pack 120, cathode are electrically connected heating film
The first end of component 130, the other end of the second end electrical connection heating relay 110 of heating membrane module 130；170 electricity of fuse
It is connected between one end of heating relay 110 and the second end of heating membrane module 130, main negative relay 180 is connected electrically in electricity
Between the cathode of pond packet 120 and the first end for heating membrane module 130 and maintenance switch 190 is connected electrically in any two battery
Between mould group 122.The each series connection of heating film 132 partial pressure, the on-off control that heating circuit passes through heating relay 110.Such as Fig. 7 institute
Show, be the assembling structure schematic diagram of power battery heating system, heat conductive pad 160 be located at battery modules 122 and punching press cold plate 150 it
Between, heating film 132 is between punching press cold plate 150 and supporting element 140.Wherein, the first surface layer of heating film 132 passes through fire-retardant
Gluing is affixed on punching press cold plate 150；Supporting element 140 is by providing compression and back elastic force, so that heating film 132 and punching press cold plate 150 are tight
Contiguity touching, prevents bubble；Simultaneously supporting element 140 provide compression and back elastic force so that punching press cold plate 150, heat conductive pad 160 with
It is in close contact between battery modules 122, provides good thermally conductive pathways to heat and cooling down.
Specifically, heating film can carry out matching design according to the outer dimension of punching press cold plate, pass through the compression and back of supporting element
Elastic force effect and hollow design, meet the matching requirements of punching press cold plate and temperature sensor, and then without traditional outside
Heater can reduce external heater weight (can such as be reduced by about 2 kilograms)；Meet the function of battery low-temperature heat, example simultaneously
Such as battery heating efficiency left and right more fast again than traditional external heater.The control of heating on-off is carried out by heating relay,
It is lower to control hardware cost.In heating film in temperature sensor measurement heating process heating film temperature, and then BMU can be passed through
Control heating maximum temperature and the temperature difference.
In one example, four heating films 132 shown in Fig. 7 are symmetrical structure, and four supporting elements 140 are symmetry
Structure.The mode that gluing can be used in heating film 132 is connected with punching press cold plate 150, and installation is simple and convenient, haves no need to change battery mould
The design of group 122 or other structures part.Meanwhile heating film 132 passes through support between punching press cold plate 150 and supporting element 140
The screen resilience of part 140 is in close contact heating film 132, punching press cold plate 150, heat conductive pad 160 and battery modules 122；Pass through punching
150 pairs of heating of cold plate are pressed to carry out samming, so that the power battery heating system of the application is compared to heating method in traditional packet
The heating temperature difference is substantially reduced.Meanwhile the production technology flexibility of heating film 132 is very high, can be made into different outer dimensions and same
Face heating power in 132 different zones of piece heating film is variable, and then is applicable to the battery pack of different model.Work as battery modules
122 number sizes are different, can be by changing the outer dimension of heating film 132 and the outer dimension of supporting element 140, Ji Keshi
Existing above-mentioned computer heating control process.
In one example, the outer dimension of heating film is consistent with the outgoing size of punching press cold plate, passes through punching press cold plate
Edge carries out installation positioning, installs simple and convenient.
Further, temperature sensor location is in heating process high temperature region, by experiment simulation it is found that temperature passes
The temperature data that sensor measurement obtains can represent heating film hot face temperature, add by the way that monitoring maximum temperature promise is high-power
The safety of hotting mask process, when temperature data exceeds maximum temperature limit value, disconnection fast charge relay terminates heating immediately.
In above-mentioned power battery heating system, controlled by heating the on-off that relay is heated, while in heating film
Surface increases temperature sensor, monitors heating film surface temperature in real time, guarantees the security reliability of heating process.Pass through supporting element
Design provide good thermally conductive pathways so that heating film and punching press cold plate are in close contact, and for the structure of primary battery packet without
It influences.Entire heating system reduces weight, reduces costs, improve heating efficiency compared to traditional external heater
And uniform temperature is good.
It should be noted that in the power battery heating system of the application, it can be according to battery modules in different battery packs
Arrangement position and the geomery for flexibly changing supporting element and heating film, entire heating system cost low mass are light, adjusted design
It is suitable for the power battery demand of different automobile types afterwards.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of power battery heating system, which is characterized in that including heating relay, connected the electricity formed by each battery modules
Chi Bao, and the heating membrane module formed by each heating film cascade；The anode of the battery pack is electrically connected the heating relay
One end, cathode be electrically connected it is described heating membrane module first end；The second end of the heating membrane module is electrically connected the heating
The other end of relay；
It further include the punching press cold plate being set between the battery modules and the first surface layer of the heating film and multiple supports
Part；Each supporting element and each heating film correspond, second surface layer of the supporting element close to the heating film.
2. power battery heating system according to claim 1, which is characterized in that the heating film includes being located at described the
Middle layer between one superficial layer and the second surface layer；
The first surface layer is PET insulating layer, and the second surface layer is PET insulating layer, and the middle layer is that copper plates aluminium foil
Resistance alloys.
3. power battery heating system according to claim 2, which is characterized in that the first surface layer and the punching press
The connection of cold plate gluing.
4. power battery heating system according to claim 2, which is characterized in that further include being set to the second surface layer
On temperature sensor.
5. power battery heating system according to claim 4, which is characterized in that the supporting element has close to described the
The plate face of two superficial layers；
The plate face is equipped with for the groove for inlaying the temperature sensor that coincide.
6. power battery heating system according to claim 1, which is characterized in that the supporting element is elastic supporting member for supporting optical member.
7. power battery heating system according to claim 6, which is characterized in that the elastic supporting member for supporting optical member is foaming silicon rubber
Glue supporting element.
8. according to claim 1 to power battery heating system described in 7 any one, which is characterized in that further include being set to institute
State the heat conductive pad between battery modules and the punching press cold plate.
9. according to claim 1 to power battery heating system described in 7 any one, which is characterized in that further include electrical connection
Fuse between one end of the heating relay and the second end of the heating membrane module.
10. according to claim 1 to power battery heating system described in 7 any one, which is characterized in that further include electrical connection
The negative relay of master between the cathode of the battery pack and the first end of the heating membrane module, and it is connected electrically in any two
Maintenance switch between a battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204181.8U CN209249648U (en) | 2019-02-15 | 2019-02-15 | Power battery heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920204181.8U CN209249648U (en) | 2019-02-15 | 2019-02-15 | Power battery heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209249648U true CN209249648U (en) | 2019-08-13 |
Family
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129660A (en) * | 2020-04-01 | 2020-05-08 | 惠州亿纬锂能股份有限公司 | Battery system, vehicle system, and battery system heating control method |
| CN113619450A (en) * | 2021-08-11 | 2021-11-09 | 中国第一汽车股份有限公司 | Power battery heating system and fault detection method thereof |
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2019
- 2019-02-15 CN CN201920204181.8U patent/CN209249648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111129660A (en) * | 2020-04-01 | 2020-05-08 | 惠州亿纬锂能股份有限公司 | Battery system, vehicle system, and battery system heating control method |
| CN113619450A (en) * | 2021-08-11 | 2021-11-09 | 中国第一汽车股份有限公司 | Power battery heating system and fault detection method thereof |
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Effective date of registration: 20220105 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |