CN105489966B - Power battery pack - Google Patents
Power battery pack Download PDFInfo
- Publication number
- CN105489966B CN105489966B CN201511016929.4A CN201511016929A CN105489966B CN 105489966 B CN105489966 B CN 105489966B CN 201511016929 A CN201511016929 A CN 201511016929A CN 105489966 B CN105489966 B CN 105489966B
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- Prior art keywords
- heat
- battery
- air duct
- air
- lithium ion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/005—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric storage means
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of power battery packs, including：Several battery modules, several battery modules stack together, and battery module includes casing assembly, flexible packing lithium ion battery and heat-exchange system, and casing assembly has battery accommodating chamber and air duct unit, and the air duct unit of several battery modules, which is interconnected, forms air duct；Flexible packing lithium ion battery is loaded in battery accommodating chamber；Heat-exchange system includes collection flat heat, heat pipe and fin, and collection flat heat is loaded in the battery accommodating chamber of casing assembly, and heat pipe is fixed on collection flat heat, and heat pipe has the first segment extended to except collection flat heat, and fin is on first segment；Wind turbine, wind turbine is for making the air in air duct flow；And heating device, heating device are used for the air in heating air duct.The battery module of the power battery pack of the present invention solves the problems, such as current electric vehicle, electric bus, can not charge caused by power battery heat dissipation used in electric bus is bad or temperature is too low, discharge.
Description
Technical field
The present invention relates to battery technology fields, more particularly to a kind of power battery pack.
Background technology
The battery pack of existing power battery is directly connected to using single battery or adds substantially guard shield, radiating rate
The heat conduction velocity of protective materials depending on battery, if using pure plastic battery shell, heat would become hard to from battery
It sheds on ontology, while temperature drastically increases the lug of battery due to the raising of charge-discharge magnification, causes battery pole ear and battery
Bonding plastic cement between aluminum plastic film melts, and makes battery leakage, and battery failure or danger on fire occurs.Use the mould of metal shell
The battery case weight of block battery, composition will be very heavy, not have the advantages of actual use, and metal shell easily causes battery
Case internal short-circuit, to which the hidden danger such as fire occur.
Currently, being moved used in electric bicycle, battery-operated motor cycle, electric motor car, electric bus, electric bus
Power battery pack is mostly air-cooled, water cooling or natural cooling battery pack, and the temperature range used is made by what battery itself was had by oneself
With the scope limitation of temperature, it may occur that battery pack is the case where the area of temperature cold can not charge or can not discharge；In temperature
Spend high regional battery set control system protection equally cause can not charge or discharge, the serious light then battery pack of situation damages
It is bad, the consequence of heavy then vehicle damage.
Invention content
Present situation for the above-mentioned prior art, technical problem to be solved by the present invention lies in, a kind of power battery pack is provided,
Solve current electric vehicle, electric bus, bad or temperature is too low causes for power battery heat dissipation used in electric bus
The problem of can not charging, discharge, and facilitate battery group.
The whole cooling or whole heating that battery in battery pack is carried out by the heat dissipation heating system of battery pack, to protect
Card battery pack works within the scope of best temperature, so that battery is played best performance, is that vehicle is optimal performance.
In order to solve the above-mentioned technical problem, a kind of power battery pack provided by the present invention, which is characterized in that including：
Several battery modules, several battery modules stack together, and the battery module includes：Casing assembly, institute
Stating casing assembly has battery accommodating chamber and air duct unit, and the air duct unit of several battery modules, which is interconnected, forms air duct；It is soft
Lithium ion battery is packed, the flexible packing lithium ion battery is loaded in the battery accommodating chamber of the casing assembly, the flexible package
The positive pole ear and negative lug of lithium ion battery are respectively welded positive drainage metal item and cathode drainage metal item, it is described just
Pole drainage metal item and the cathode drainage metal item expose the casing assembly；Heat-exchange system, the heat-exchange system packet
Include collection flat heat, heat pipe and fin, in battery accommodating chamber of the collection flat heat loaded on the casing assembly, and with the Soft Roll
Dress lithium ion battery surface fit closely, the heat pipe is fixed on the collection flat heat, and the heat pipe have extend to institute
The first segment except collection flat heat is stated, the fin is on the first segment, and the fin is located in the air duct unit；
Wind turbine, the wind turbine is for making the air in the air duct flow；And
Heating device, the heating device are used to heat the air in the air duct.
The heat pipe further includes second segment in one of the embodiments, the second segment and the flexible packing lithium ion
The positive pole ear or negative lug of battery are opposite.
The second segment extends transversely in one of the embodiments, the first end of the second segment and described first
Section connection, the heat pipe further includes being extended longitudinally from the second end of the second segment to the third section in the middle part of the collection flat heat
And transversely the 4th section of the collection flat heat edge is extended to back to the second segment side from third section end.
It is provided between the collection flat heat and the flexible packing lithium ion battery contact surface in one of the embodiments,
Insulating heat-conduction material.
The positive pole ear or cathode of the collection flat heat and the flexible packing lithium ion battery in one of the embodiments,
The opposite position of lug is provided with insulating heat-conductive silicagel pad.
The battery module includes two air duct units and two heat exchange series in one of the embodiments,
System, two air duct units are located at the both sides of the battery accommodating chamber, and two heat-exchange systems are located at institute
The both sides of flexible packing lithium ion battery are stated, and the fin of two heat-exchange systems is located at two air ducts lists
In member, two air duct units of several battery modules, which are interconnected, forms two air ducts.
Include two wind turbines and two heating devices in one of the embodiments, two wind turbines are used
In respectively flowing the air in the air duct, two heating devices are used to heat the air in the air duct respectively.
The power battery pack further includes being separately mounted to the front of several battery modules in one of the embodiments,
With the front panel and back panel at the back side, front air inlet and front-outlet mouth, the back of the body are provided on the front panel
Back side air inlet and back side air outlet are provided on faceplate panels；First wind turbine and first heating device are mounted on front panel
Inside, and the air inlet of first wind turbine is connected to the front air inlet, the air outlet of first wind turbine with this first
The heating channel entrance of a heating device is connected to, and the heating channel outlet of first heating device connects with first air duct import
Logical, which is connected to the back side air outlet；Second wind turbine and second heating device installation are overleaf
On the inside of panel, and the air inlet of second wind turbine be connected to the back side air inlet, the air outlet of second wind turbine and this
The heating channel entrance connection of second heating device, the heating channel outlet of second wind turbine connect with second air duct import
Logical, which is connected to the front-outlet mouth.
Further include total cathode metal plate and total negative metal plate in one of the embodiments, total cathode metal plate,
It is welded respectively with the positive drainage metal item of the battery module and cathode drainage metal item with total negative metal plate.
Several battery modules are fixed by several metal binding straps in one of the embodiments,.
Compared with prior art, power battery pack provided by the invention, flexible packing lithium ion battery charge and discharge process generate
Heat outside batteries are transmitted to by heat-exchange system, using forced air flow method be dispersed into module-external；Simultaneously
It is directed to cold district, the drawbacks of lithium ion battery can not charge, can not discharge, is given by heat-exchange system using outside heat
Battery heats, and single battery is made to be in best operating temperature, can not charge to being effectively improved cold district electric vehicle and put
The problem of electricity.
To sum up, power battery pack provided by the invention, by heat-exchange system to the whole cooling of battery in battery pack or
Person integrally heats, and to ensure that battery pack works within the scope of best temperature, so that battery is played best performance, vehicle is made to reach
Optimal performance.
Advantageous effect possessed by additional technical feature of the present invention will be said in this specification specific embodiment part
It is bright.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the power battery pack in the embodiment of the present invention；
Fig. 2 is that the power battery pack in the embodiment of the present invention removes the dimensional structure diagram after top panel；
Fig. 3 is that the power battery pack in the embodiment of the present invention removes the solid after top panel, front panel and back panel
Structural schematic diagram；
Fig. 4 is the dimensional structure diagram of the power battery pack in the embodiment of the present invention；
Fig. 5 is the partial sectional view of the power battery pack in the embodiment of the present invention；
Fig. 6 and Fig. 7 is the dimensional structure diagram of the first shell of the power battery pack in the embodiment of the present invention, wherein
Fig. 6 is from the state seen inwardly outside, and Fig. 7 is from the interior state to look out；
Fig. 8 is the dimensional structure diagram of the flexible packing lithium ion battery of the power battery pack in the embodiment of the present invention；
Fig. 9 is the dimensional structure diagram of the heat-exchange system of the power battery pack in the embodiment of the present invention；
Figure 10 and Figure 11 is the dimensional structure diagram of the front panel of the power battery pack in the embodiment of the present invention,
In, Figure 10 is from the interior state to look out, and Figure 11 is from the state seen inwardly outside.
Reference sign：10- battery modules；11- casing assemblies；11a- battery accommodating chambers；The air ducts 11b- unit；111-
First shell；112- second housings；12- flexible packing lithium ion batteries；The pre-buried rotating-proof nuts of 13-；14- assembles rotating-proof nut；15-
Positive drainage metal item；16- heat-exchange systems；16a- collection flat heats；16b- heat pipes；16b1- first segments；16b2- second segments；
16b3- third sections；The 4th section of 16b4-；16c- fins；17- insulating heat-conductive silicagel pads；18- high-temperature resistant rubber pads；19- cathode draw
Flow metal strip；20- power battery packs；21- front panels；The fronts 21a- air inlet；21b- front-outlet mouths；21c- is fixed in front
Hole；22- back panels；The back sides 22a- air inlet；The back sides 22b- air outlet；The back sides 22c- mounting hole；23- top panels；24- wind-guidings
Cover；25- wind turbines；26- heating devices；The total cathode metal plates of 27-；The total negative metal plates of 28-；29- studs；30, metal binding strap.
Specific implementation mode
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in detail.It should be noted that not conflicting
In the case of, the feature in following embodiment and embodiment can be combined with each other.
As shown in Figs. 1-3, the power battery pack (20) of the present invention in one embodiment include several battery modules 10,
Front panel 21, back panel 22, top panel 23, forced ventilation heat dissipation and battery pack heating device, total cathode metal plate 27 and
Total negative metal plate 28, several battery modules 10 stack together, and are fixed by three metal binding straps 30.
As shown in figures 4-9, battery module 10 is mainly by casing assembly 11, flexible packing lithium ion battery 12 and two heat exchanges
System 16 forms, wherein the casing assembly 11 is snapped together by the first shell 111 and second housing 112, and passes through ultrasound
Wave is welded and fixed, and forms battery accommodating chamber 11a and air duct unit 11b between the two.More preferably, air duct unit 11b be two, two
A air duct unit 11b is located at the both sides of battery accommodating chamber 11a, after several battery modules 10 stack together, all batteries
The air duct unit 11b of module 10 forms two air ducts, the gap between battery module 10 using sealing ring (not shown) into
Row sealing, prevents wind pressure from declining.The flexible packing lithium ion battery 12 is loaded on the battery accommodating chamber 11a of the casing assembly 11
Interior, the positive pole ear and negative lug of the flexible packing lithium ion battery 12 are respectively welded positive drainage metal item 15 and cathode
Drainage metal item 19, the anode drainage metal item 15 and the cathode drainage metal item 19 expose the casing assembly 11.
Two heat-exchange systems 16 are located at the both sides of flexible packing lithium ion battery 12, and heat-exchange system 16 includes
Collection flat heat 16a, heat pipe 16b and fin 16c, the collection flat heat 16a are made of aluminum material, the collection flat heat 16a's
Size is in the same size with flexible packing lithium ion battery 12, the collection flat heat 16a and the flexible packing lithium ion battery 12 1
The surface of side fits closely, and insulation is provided between 12 contact surface of the collection flat heat 16a and the flexible packing lithium ion battery
Heat Conduction Material (such as spraying Teflon figure layer or ceramic coating, or use heat safe insulation Teflon adhesive tape, fiberglass adhesive tape
Carry out insulation processing), to reduce thermal contact resistance.More preferably, the collection flat heat 16a and the flexible packing lithium ion battery 12
Positive pole ear or the opposite position of negative lug are provided with insulating heat-conductive silicagel pad 17, prevent collection flat heat 16a from contacting battery pole
Ear position.The heat pipe 16b is fixed by welding on the collection flat heat 16a, and the heat pipe 16b, which has, extends to the collection
First segment 16a1, the fin 16c except flat plate heat 16a is on the first segment 16a1, and the fin 16c is located at institute
It states in the unit 11b of air duct.Fin 16c materials can be aluminum or copper, and fin 16c can increase the area contacted with air, make biography
It leads more efficient.The heat that 12 charge and discharge process of flexible packing lithium ion battery generates, conduction to the thermal-arrest with high thermal conductivity coefficient
Tablet 16a, then conduct to the evaporator section of heat pipe 16b；After heat pipe 16b temperature reaches its start-up temperature, internal working fluid
It undergoes phase transition；The latent heat of vaporization of working fluid Yin Qigao and take away evaporator section absorption heat；It is cold that working media reaches heat pipe 16b
After solidifying section, heat by the surfaces fin 16c by being distributed with cross-ventilation, to make working media liquefy；Working fluid because
Heat pipe 16b liquid-sucking core capillarities return to evaporator section；So cycle has achieved the purpose that heat dissipation.When needing heating, heat
Air is heated to fin 16c, is conducted heat on flexible packing lithium ion battery 12 by the working media in heat pipe 16b, from
And achieve the purpose that heat flexible packing lithium ion battery 12.More preferably, the heat pipe 16b further includes second segment 16b2, and described
Two sections of 16b2 are opposite with the positive pole ear of the flexible packing lithium ion battery 12 or negative lug.Due to flexible packing lithium ion battery
The heat that 12 positive pole ear or negative lug generates is larger, the second segment 16b2 and the flexible packing lithium ion battery 12
Positive pole ear or negative lug are opposite, can quickly take away the heat at positive pole ear or negative lug.Further, described
Heat pipe 16b further includes third section 16b3 and the 4th section of 16b4, and the 4th section of 16b4 is from collection flat heat 16a far from air duct unit
The middle part at the edge of 11b transversely extends to the air duct sides unit 11b in the middle part of collection flat heat 16a, and by extending longitudinally
Third section 16b3 is connect with the second segment 16b2.The heat pipe 16b of this structure meets battery temperature Field distribution characteristic, heat dissipation effect
Fruit is good.
More preferably, the top of the casing assembly 11 is provided with the assembly rotating-proof nut 14 for fixed roof surface plate 23, institute
State the pre-buried rotating-proof nut 13 being provided on the side of casing assembly 11 for installing stud 29.
In conjunction with shown in Fig. 1-2,10-11, front panel 21 and back panel 22 are separately mounted to several battery modules 10
Front and back is provided with front air inlet 21a, front-outlet mouth 21b and front mounting hole 21c on front panel 21, front
The outlet of air outlet 21b and first air duct, screw pass through front mounting hole 21c to screw in front panel in stud 29
21.Back side air inlet 22a, back side air outlet 22b and back side mounting hole 22c, back side air outlet 22b are provided in back panel 22
With the outlet in second air duct, screw passes through back side mounting hole 22c to screw in stud 29 and fixes back panel 22.
Forced ventilation radiates and battery pack heating device is two groups, two groups of forced ventilation heat dissipations and battery pack heating device point
Not An Zhuan front panel 21 and back panel 22 inside, respectively simultaneously to internal battery pack monomer module positive pole ear
And positive and negative lug and the back side are heated or heat dissipation.Forced ventilation radiate and battery pack heating device include wind scooper 24,
Wind turbine 25 and heating device 26, import and the front air inlet 21a of front panel 21 or the back of the body of back panel 22 of wind scooper 24
Face air inlet 22a is connected to, and the outlet of wind scooper 24 is connected to the air inlet of wind turbine 25, air outlet and the heating device 26 of wind turbine 25
Heating channel inlet communication, heat the outlet in channel and the front-outlet mouth 21b of front panel 21 or back panel 22
Back side air outlet 22b is connected to.The front air inlet 21a of front panel 21 and the back side air inlet 22a and wind-guiding of back panel 22
Cover 24 and the gap between wind scooper 24 and heating device 26 are sealed by sealing ring, prevent gas leakage and dust from entering in battery pack
Portion.Wind turbine 25 in the present embodiment is turbofan.It can be seen that the power battery pack has two sets, two sets of heat dissipations/heating system
System is each responsible for cell positive pole ear or negative lug and corresponding flexible packing lithium ion battery face is radiated or heated, because
This heat dissipation/heating effect is good.
Total cathode metal plate 27 and total negative metal plate 28 expose from the top of front panel 21 and back panel 22 respectively,
More preferably, positive 15 laser welding of drainage metal item of total cathode metal plate 27 and total negative metal plate 28 and battery module 10,
Laser welding can make the charge and discharge multiplying power of battery accomplish the limit of single battery, avoid the energy caused by the resistance of mechanical connection
Amount loss, avoids the thermal runaway caused by internal resistance is excessively high.
Top panel 23 is fixed on the top of several battery modules 10, shields.
The operation principle of the power battery pack 20 of the present invention is as follows：
When 20 internal temperature of power battery pack increases, the control system control rotation of wind turbine 25 makes cold air pass through positive face
The front air inlet 21a of the plate 21 and back side air inlet 22a of back panel 22 enters the heating of heating device 26 from wind scooper 24
Channel, because being the internal heat that sheds, the heater strip of heating device 26 does not work, and cold air is formed into several battery modules 10
Air duct, the heat on the fin 16c in air duct is taken away, to reduce the positive pole ear of flexible packing lithium ion battery 12 and negative
The temperature on 12 surface of pole lug and flexible packing lithium ion battery, the front-outlet mouth of hot-air after heat exchange from front panel 21
The 21b and back side air outlet 22b of back panel 22 outflows.
Conversely, when 20 internal temperature of power battery pack is too low, control system open wind turbine 25 and heating device 26 plus
Heated filament, the rotation of wind turbine 25 make cold air pass through the front air inlet 21a of front panel 21 and the back side air inlet of back panel 22
22a enters the heating channel of heating device 26 from wind scooper 24, after the heater strip of heating device 26 heats cold air, if into
In the air duct that dry cell module 10 is formed, by the fin 16c heating in air duct, thus by the anode of flexible packing lithium ion battery 12
Lug and negative lug and the heating of 12 surface of flexible packing lithium ion battery, the cold air after heat exchange go out from the front of front panel 21
The air port 21b and back side air outlet 22b of back panel 22 outflows.
To sum up, power battery pack of the invention has the advantages that：
1, power battery pack of the invention has heat-exchange system, what 12 charge and discharge process of flexible packing lithium ion battery generated
Heat is transmitted to outside batteries by heat-exchange system, and module-external is dispersed into using the method that forced air flows；Work as simultaneously
Temperature is relatively low when needing heating, gives battery to heat by heat-exchange system using outside heat, single battery is made to be in best
Operating temperature, to be effectively improved cold district electric vehicle can not charging and discharging the problem of.It is electronic at present to solve
Automobile, electric bus can not charge caused by power battery heat dissipation used in electric bus is bad or temperature is too low, put
The problem of electricity.
2, power battery pack of the invention, the positive pole ear or negative lug of flexible packing lithium ion battery 12 do not generate heat or heat
Amount quickly outside batteries are transmitted to by heat-exchange system, using forced air flow method be dispersed into module-external, can
With the battery suitable for high magnification charge and discharge.
3, power battery pack of the invention, after multiple group of battery modules are combined, the fin installation position of heat-exchange system
Re-entrant portion can form air duct；After battery module combination weld battery pack drainage metal plate, using metal binding belt carry out at
Group processing can be directly used for entrucking use, without the outer container for being further added by battery pack after adding auxiliary accessories.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect range.
Claims (8)
1. a kind of power battery pack, which is characterized in that including：
Several battery modules (10), several battery modules (10) stack together, and the battery module (10) includes：Shell
Component (11), the casing assembly (11) have battery accommodating chamber (11a) and air duct unit (11b), several battery modules (10)
Air duct unit (11b) be interconnected composition air duct；Flexible packing lithium ion battery (12), the flexible packing lithium ion battery (12)
In battery accommodating chamber (11a) loaded on the casing assembly (11), the positive pole ear of the flexible packing lithium ion battery (12) and
Negative lug is respectively welded positive drainage metal item (15) and cathode drainage metal item (19), the anode drainage metal item
(15) and the cathode drainage metal item (19) exposes the casing assembly (11)；Heat-exchange system (16), the heat exchange series
System (16) includes collection flat heat (16a), heat pipe (16b) and fin (16c), and the collection flat heat (16a) is loaded on the shell group
In the battery accommodating chamber (11a) of part (11), and fitted closely with the flexible packing lithium ion battery (12) surface, the heat pipe
(16b) is fixed on the collection flat heat (16a), and the heat pipe (16b) have first segment (16a1), second segment (16b2),
Third section (16b3) and the 4th section (16b4), first segment (16a1) extend to except the collection flat heat (16a), the second segment
(16b2) is extended transversely, and the first end of the second segment (16b2) is connect with the first segment (16a1), the second segment
(16b2) is opposite with the positive pole ear of the flexible packing lithium ion battery (12) or negative lug, and third section (16b3) is described in
The second end of second segment is extended longitudinally in the middle part of the collection flat heat (16a), and the 4th section (16b4) is held from third section (16b3)
Portion transversely extends to the edge the collection flat heat (16a) to back to the side the second segment (16b2), and the fin (16c) is mounted in
On the first segment (16a1), and the fin (16c) is located in the air duct unit (11b)；
Wind turbine (25), the wind turbine (25) is for making the air in the air duct flow；And
Heating device (26), the heating device (26) are used to heat the air in the air duct.
2. power battery pack according to claim 1, which is characterized in that the collection flat heat (16a) and the flexible package
It is provided with insulating heat-conduction material between lithium ion battery (12) contact surface.
3. power battery pack according to claim 1, which is characterized in that the collection flat heat (16a) and the flexible package
The position that the positive pole ear or negative lug of lithium ion battery (12) are opposite is provided with insulating heat-conductive silicagel pad (17).
4. power battery pack as claimed in any of claims 1 to 3, which is characterized in that the battery module (10)
Including two air duct units (11b) and two heat-exchange systems (16), two air duct units (11b) difference positions
In the both sides of the battery accommodating chamber (11a), two heat-exchange systems (16) are located at the flexible packing lithium ion electric
The both sides in pond (12), and the fin (16c) of two heat-exchange systems (16) is located at two air duct units
In (11b), two air duct units (11b) of several battery modules (10), which are interconnected, forms two air ducts.
5. power battery pack according to claim 4, which is characterized in that described in two wind turbines (25) and two
Heating device (26), two wind turbines (25) are for respectively flowing the air in the air duct, two heating devices
(26) it is used to heat the air in the air duct respectively.
6. power battery pack according to claim 5, which is characterized in that the power battery pack further includes installing respectively
On the front panel (21) and back panel (22) of the front and back of several battery modules (10), the front panel (21)
It is provided with front air inlet (21a) and front-outlet mouth (21b), back side air inlet is provided on the back panel (22)
(22a) and back side air outlet (22b)；First wind turbine (25) and first heating device (26) are mounted in front panel (21)
Side, and the air inlet of first wind turbine (25) is connected to the front air inlet (21a), the outlet air of first wind turbine (25)
Mouth is connected to the heating channel entrance of first heating device (26), the heating channel outlet of first heating device (26)
With first air duct inlet communication, which is connected to the back side air outlet (22b)；Second wind turbine (25)
It is mounted on the inside of back panel (22) with second heating device (26), and the air inlet of second wind turbine (25) and the back of the body
Face air inlet (22a) is connected to, the heating channel of the air outlet of second wind turbine (25) and second heating device (26) into
Mouthful connection, the heating channel outlet of second wind turbine (25) and second air duct inlet communication, second ducting outlet with
Front-outlet mouth (21b) connection.
7. power battery pack according to claim 1, which is characterized in that further include total cathode metal plate (27) and total cathode
Metallic plate (28), total cathode metal plate (27) and total negative metal plate (28) respectively with the battery module (10)
Positive drainage metal item (15) and cathode drainage metal item (19) welding.
8. power battery pack according to claim 1, which is characterized in that several battery modules (10) pass through several
Metal binding strap (30) is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016929.4A CN105489966B (en) | 2015-12-28 | 2015-12-28 | Power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511016929.4A CN105489966B (en) | 2015-12-28 | 2015-12-28 | Power battery pack |
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| Publication Number | Publication Date |
|---|---|
| CN105489966A CN105489966A (en) | 2016-04-13 |
| CN105489966B true CN105489966B (en) | 2018-10-02 |
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| CN201511016929.4A Active CN105489966B (en) | 2015-12-28 | 2015-12-28 | Power battery pack |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102562682B1 (en) * | 2016-05-25 | 2023-08-03 | 삼성에스디아이 주식회사 | Battery module |
| CN107845844A (en) * | 2017-09-29 | 2018-03-27 | 北京北交新能科技有限公司 | A kind of track traffic lithium ion battery module |
| CN108550736A (en) * | 2018-05-15 | 2018-09-18 | 华霆（合肥）动力技术有限公司 | Air-cooled hybrid-power battery system and electric vehicle |
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| CN105489966A (en) | 2016-04-13 |
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