CN203839423U - Liquid cooling battery system - Google Patents
Liquid cooling battery system Download PDFInfo
- Publication number
- CN203839423U CN203839423U CN201420137767.4U CN201420137767U CN203839423U CN 203839423 U CN203839423 U CN 203839423U CN 201420137767 U CN201420137767 U CN 201420137767U CN 203839423 U CN203839423 U CN 203839423U
- Authority
- CN
- China
- Prior art keywords
- battery
- cooling
- casing
- battery system
- bms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 76
- 239000007788 liquid Substances 0.000 title claims abstract description 48
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 60
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 59
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 25
- 238000003825 pressing Methods 0.000 claims description 10
- 230000007306 turnover Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 7
- 229910001416 lithium ion Inorganic materials 0.000 description 7
- 239000011449 brick Substances 0.000 description 5
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 150000001398 aluminium Chemical class 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 208000016261 weight loss Diseases 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
Landscapes
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a liquid cooling battery system. The liquid cooling battery system comprises a box body and a battery management system (BMS) control box, wherein a cavity is arranged in the box body, and at least two battery modules, cooling aluminum plates and a cooling aluminum tube are placed in the cavity; the BMS control box is fixed on the outer surface of the box body; the battery modules comprise at least one single battery, and anode-cathode connecting ports are disposed at two ends of the battery modules; the anode-cathode connecting ports are connected through connecting copper bars and the battery modules are enabled to be in series connection; the cooling aluminum plates are attached to the surface of the at least one single battery, and mounting grooves are formed in the side surfaces of the cooling aluminum plates; the cooling aluminum tube is disposed on the side surfaces of the battery modules and fixed in the mounting grooves, and penetrates the box body to outwards extend. The liquid cooling battery system is good in heat dissipation performance, firmness and safety and widely applicable to fields of electric cars, electric bicycles, space flight and aviation, stored energy and the like.
Description
Technical field
The utility model relates to electrokinetic cell system technical field of structures, relates in particular to a kind of by the battery system of liquid cools.
Background technology
Lithium ion battery is as the battery leading products in 20 years futures, and its application prospect is also a slice light, although in industry, the query of lithium ion battery is never ceased, if whether rowland shellfish lattice prediction lithium ion battery is next foam.But the whole world to lithium ion battery market with and the willingness to invest in related industry electric motor car market never went down, reason is, present market orientation has determined new forms of energy, environmental protection is the theme of 21 century, and row insider thinks, lithium ion battery is the epoch newborn baby of electronics and information industry and automobile industry etc., according to the issue of various countries to lithium ion battery and pure electric automobile new policy in recent years, it is indicating the gold also not arrival in period of lithium ion battery, its development also will step to a new level, and be the requisite new forms of energy approach of national economy every field, lithium battery mainly contains by profile classification at present: square, cylinder, flexible package polymer battery, wherein flexible package poly-lithium battery is because of its flexible design, security performance is good, heat-conductivity conducting performance is good, adaptive temperature is wide, can high current charge-discharge etc. advantage, in the extensive use in each large field.
Power brick is the power producer of electric automobile, is also the core component of electric automobile.Due to Electric Vehicles Driving Cycle complexity, in battery use procedure, can produce more heat transfer, internal temperature of battery is raise, especially the module forming for multiple cells, temperature in module can rise sooner, if heat can not discharge in time, can strengthen the inconsistency of battery, and shorten useful life of battery, even cause potential safety hazard.
Therefore, on market, needing now design one badly can quick heat radiating, safe and convenient, the battery system that consistency is good.
Utility model content
The utility model proposes a kind ofly by the battery system of liquid cools, adopt casing six riveted joints, the technology such as cooling aluminum pipe heat loss through conduction, have excellent radiation performance, security performance good, rational in infrastructure, assemble the advantages such as flexible.
The battery system that passes through liquid cools the utility model proposes, comprising: casing, in described casing, be provided with a cavity, and in described cavity, be placed with at least two battery modules, cooling aluminium sheet and cooling aluminum pipe; BMS control box, described BMS control box is fixed on the outer surface of described casing.
Wherein, described battery module comprises at least one battery cell, and the two ends of described battery module are provided with both positive and negative polarity connectivity port; Described both positive and negative polarity connectivity port connects by connecting copper bar, and described battery module is connected in series; Described cooling aluminium sheet sticks on the surface of described battery cell, and the side of described cooling aluminium sheet is provided with mounting groove; Described cooling aluminum pipe is arranged on the side of described battery module, is fixed in described mounting groove, and runs through described casing and stretch out.
In the battery system that passes through liquid cools the utility model proposes, described cooling aluminum pipe is hollow tubular, and described cooling aluminum pipe is structure in a zigzag, and its two ends are respectively inlet and liquid outlet.
In the battery system that passes through liquid cools the utility model proposes, further comprise the cooling device being arranged on outside casing, described inlet and described liquid outlet are communicated with described cooling device respectively.
In the battery system that passes through liquid cools the utility model proposes, a side turnover of described cooling aluminium sheet, is provided with mounting groove in turnover place.
In the battery system that passes through liquid cools the utility model proposes, described battery module comprises: at least three battery cells, the surface of every described battery cell has all sticked described cooling aluminium sheet, is arranged in parallel described in polylith between battery cell.
In the battery system that passes through liquid cools the utility model proposes, described casing comprises: front shroud, back shroud, upper cover plate, base plate and two side cover plates; Described front shroud, described back shroud, described upper cover plate, described base plate and described two side cover plates are mutually permanently connected by rivet, and formation one has the casing of cavity.
In the battery system that passes through liquid cools the utility model proposes, on described front shroud, be provided with both positive and negative polarity wire hole, cover installing hole, BMS line outlet and BMS installing hole; Described BMS control box is fixed on described front shroud by described BMS installing hole; Described BMS control box is connected with described battery module by described BMS line outlet.
In the battery system that passes through liquid cools the utility model proposes, described side cover plate comprises: the first side cover installing hole, and described cooling aluminum pipe extends to outside described casing through described the first side cover installing hole; The second side cover installing hole, described battery module is fixed in described casing by described the second side cover installing hole.
In the battery system that passes through liquid cools the utility model proposes, further comprise: pressing plate, described pressing plate is arranged between described battery module and described casing.
In the battery system that passes through liquid cools the utility model proposes, further comprise: BMS control box cover, described BMS control box is arranged in described BMS control box cover.
The utility model utilizes liquid cooling mode to dispel the heat to power brick, has good thermal diffusivity, fastness, fail safe, can be widely used in electric automobile, electric bicycle, space flight and aviation, the fields such as energy storage.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model battery system entirety.
Fig. 2 is the structural representation that the utility model arranges many Battery packs module.
Fig. 3 is the structural representation that is welded with the battery module of cooling aluminium sheet in the utility model.
Fig. 4 is the structural representation of cooling aluminium sheet in the utility model.
Fig. 5 is the structural representation of cooling aluminum pipe in the utility model.
Fig. 6 A is the structural representation of front shroud in the utility model.
Fig. 6 B is the structural representation of back shroud in the utility model.
Fig. 6 C is the structural representation of upper cover plate in the utility model.
Fig. 6 D is the structural representation of base plate in the utility model.
Fig. 6 E is the structural representation of side cover plate in the utility model.
Fig. 7 is the structural representation of the utility model center platen.
Fig. 8 is the structural representation of BMS control box cover in the utility model.
embodiment
In conjunction with following specific embodiments and the drawings, the utility model is described in further detail.Implement process of the present utility model, condition, experimental technique etc., except the content of mentioning specially below, be universal knowledege and the common practise of this area, the utility model is not particularly limited content.
In Fig. 1 to Fig. 8,1-battery module, 11-both positive and negative polarity connectivity port, 12-battery cell, the cooling aluminium sheet of 2-, 21-mounting groove, the cooling aluminum pipe of 3-, 4-casing, 41-front shroud, 411-both positive and negative polarity wire hole, 412-cover installing hole, 413-BMS line outlet, 414-BMS installing hole, 42-back shroud, 43-upper cover plate, 44-base plate, 45-side cover plate, 451-the first side cover installing hole, 452-the second side cover installing hole, 5-insulating cover, 6-pressing plate, 61-pressing plate installing hole, 7-BMS control box cover.
As shown in Figure 1, the utility model proposes a kind of passing through, in the battery system of liquid cools, comprising: casing 4 and BMS control box.
Wherein, as shown in Figure 2, in casing 4, there is tool one cavity, in cavity, place cooling aluminium sheet 2 and cooling aluminum pipe 3 and at least two Battery pack modules 1.BMS control box is fixed on the outer surface of casing 4, and is connected with battery module 1.
As shown in Figure 3, the utility model is by the battery system of liquid cools, the two ends of battery module 1 are provided with both positive and negative polarity connectivity port 11, the both positive and negative polarity connectivity port 11 of battery module 1 connects by connecting copper bar, battery module 1 is connected in series, on both positive and negative polarity connectivity port 11, is provided with insulating cover 5.
As shown in Figure 4, the utility model is by the battery system of liquid cools, and cooling aluminium sheet 2 sticks on the surface of battery cell 12, and a side of cooling aluminium sheet 2 is 90 ° of turnovers, is provided with multiple mounting grooves 21 in turnover place.Due to mounting groove 21 being set in turnover place, cooling aluminum pipe 3 is installed, cooling aluminium sheet 2 is larger with the contact-making surface of cooling aluminum pipe 3, good cooling results.
The utility model also can directly arrange mounting groove 21 at the side of cooling aluminium sheet 2, and does not turn down, and cooling like this aluminium sheet 2 is less with the contact-making surface of cooling aluminum pipe 3, and it is poor that cooling effect is compared above-mentioned situation.
As shown in Figure 5, the utility model is by the battery system of liquid cools, and cooling aluminum pipe 3 is structure in a zigzag, and is fixed in mounting groove 21, cooling aluminum pipe 3 will coordinate the position of mounting groove 21 to carry out bending, and the two ends of cooling aluminum pipe 3 extend outward casing 4.Particularly, cooling aluminum pipe 3 is fixed in mounting groove 21 after through the first side cover installing hole 451 on side cover plate 45, and cooling aluminum pipe 3 smearing heat-conducting silicone grease with the junction of cooling aluminium sheet 2, the heat on cooling aluminium sheet 2 is being transmitted on cooling aluminum pipe 3.
The utility model is by the battery system of liquid cools, and cooling aluminum pipe 3 is hollow tubular, and its two ends are respectively inlet 31 and liquid outlet 32.The inlet 31 of cooling aluminum pipe 3 and liquid outlet 32 are communicated with the cooling device (not shown) being arranged on outside casing 4 respectively.Particularly, in cooling aluminum pipe 3, pass into cooling fluid, carry out circulating cooling liquid by cooling device, form circulation circuit, can not only effectively discharge battery heat, can also improve battery consistency performance.
The utility model is by the battery system of liquid cools, and cooling aluminum pipe 3 is strip metallic conduits, and it is repeatedly formed in a zigzag after bending back and forth, and the flexuose left and right sides extends to outside casing 4.
The utility model is by the battery system of liquid cools, and battery module 1 comprises: at least three battery cells 12, the surface of every battery cell 12 has all sticked cooling aluminium sheet 2, between polylith battery cell 12, is arranged in parallel.
As shown in Fig. 6 A to Fig. 6 E, the utility model is by the battery system of liquid cools, and casing 4 comprises: front shroud 41, back shroud 42, upper cover plate 43, base plate 44 and two side cover plates 45; Front shroud 41, back shroud 42, upper cover plate 43, base plate 44 and two side cover plates 45 are mutually permanently connected by rivet, and formation one has the casing 4 of cavity.
As shown in Figure 6A, the utility model, by the battery system of liquid cools, is provided with both positive and negative polarity wire hole 411, cover installing hole 412, BMS line outlet 413 and BMS installing hole 414 on front shroud 41.Wherein, BMS control box is fixed on front shroud 41 by BMS installing hole 414, and BMS control box is connected with battery module 1 by BMS line outlet 413.
As shown in Fig. 6 E, the utility model is by the battery system of liquid cools, and side cover plate 45 comprises: the first side cover installing hole 451 and the second side cover installing hole 452.Wherein, cooling aluminum pipe 3 extends to outside casing 4 through the first side cover installing hole 451, and battery module 1 is fixed in casing 4 by the second side cover installing hole 452.
As shown in Figure 7, the utility model, by the battery system of liquid cools, further comprises: pressing plate 6, pressing plate 6 is arranged between battery module 1 and casing 4, has played the effect of dielectric voltage withstand.
As shown in Figure 8, the utility model, by the battery system of liquid cools, further comprises: BMS control box cover 7, and BMS control box cover 7 is fixed on the outer surface of casing 4, and BMS control box cover 7 inside have space, place BMS control box in space
The utility model, by the battery system of liquid cools, is fixed with stay bolt between battery module 1, pressing plate 6 and casing 4, and stay bolt is fixedly connected with through four installing holes of the second side cover installing hole 452, pressing plate installing hole 61 and battery module 1 self.
In the present embodiment, by fastened to each other by rivet to front shroud 41, back shroud 42, upper cover plate 43, base plate 44 and two side cover plates 45, formation one has the casing 4 of cavity.4 six faces of casing are detachable aluminium sheet, and both weight reductions, have also ensured assembly and disassembly convenience.
In the present embodiment, both positive and negative polarity wire hole 411, cover installing hole 412, BMS line outlet 413 and BMS installing hole 414 are set on front shroud 41.On back shroud 42, be provided with 20 rivet holes, be provided with 30 rivet holes on upper cover plate 43, base plate 44 is consistent with upper cover plate 43 except thickness with upper cover plate 43.The first side cover installing hole 451 and the second side cover installing hole 452 are set on side cover plate 45.
In the present embodiment, BMS control box is contained in outward in BMS control box cover 7, fixing by BMS installing hole 414, and BMS connecting line is passed to BMS line outlet 413, not unpacking in the situation that, maintain easily BMS controller, BMS control box cover 7 is fixed on casing 4 by cover installing hole 412.
In the present embodiment, cooling aluminium sheet 2 is welded on the aluminum hull of every battery, and then is assembled into three and battery module, battery heat can well be transmitted to like this on cooling aluminium sheet 2.
In the present embodiment, cooling fluid is formed to circulation circuit by cooling aluminum pipe 3 and take away the heat that power brick produces, and between the individual each battery module 1 making in casing 4, temperature is consistent, and is conducive to extending battery life, improve battery performance.
Most of battery type of cooling adopts air cooling system in the market, active air cooling or passive air-cooled, but due to the inconsistency of power brick internal temperature field and the reason such as air conductive coefficient is on the low side, cause cooling effect not obvious, cannot ensure the still operation of efficient stable of battery system under hot environment, and liquid cooling mode system of the present utility model can be evaded these weakness, utilize the conductive coefficient of cooling fluid high, film-cooled heat is large, circulatory system good fluidity, take away the features such as heat is many, effectively promote power brick heat management system.
Protection content of the present utility model is not limited to above embodiment.Under the spirit and scope that do not deviating from utility model design, those skilled in the art can to variation and advantage be all included in the utility model, and taking appending claims as protection range.
Claims (10)
1. by a battery system for liquid cools, it is characterized in that, comprising:
Casing (4), described casing is provided with a cavity in (4), is placed with at least two battery modules (1), cooling aluminium sheet (2) and cooling aluminum pipe (3) in described cavity;
BMS control box, described BMS control box is fixed on the outer surface of described casing (4);
Described battery module (1) comprises at least one battery cell (12), and the two ends of described battery module (1) are provided with both positive and negative polarity connectivity port (11); Described both positive and negative polarity connectivity port (11) connects by connecting copper bar, and described battery module (1) is connected in series;
Described cooling aluminium sheet (2) sticks on the surface of described battery cell (12), and the side of described cooling aluminium sheet (2) is provided with mounting groove (21);
Described cooling aluminum pipe (3) is arranged on the side of described battery module (1), is fixed in described mounting groove (21), and runs through described casing (4) and stretch out.
2. as claimed in claim 1 by the battery system of liquid cools, it is characterized in that, described cooling aluminum pipe (3) is hollow tubular, and described cooling aluminum pipe (3) is structure in a zigzag, and its two ends are respectively inlet (31) and liquid outlet (32).
3. as claimed in claim 2 by the battery system of liquid cools, it is characterized in that, further comprise and be arranged on the outer cooling device of casing (4), described inlet (31) and described liquid outlet (32) are communicated with described cooling device respectively.
4. as claimed in claim 1ly it is characterized in that by the battery system of liquid cools, a side turnover of described cooling aluminium sheet (2), is provided with mounting groove (21) in turnover place.
5. as claimed in claim 1 by the battery system of liquid cools, it is characterized in that, described battery module (1) comprising: at least three battery cells (12), the surface of every described battery cell (12) has all sticked described cooling aluminium sheet (2), is arranged in parallel described in polylith between battery cell (12).
6. as claimed in claim 1 by the battery system of liquid cools, it is characterized in that, described casing (4) comprising: front shroud (41), back shroud (42), upper cover plate (43), base plate (44) and two side cover plates (45); Described front shroud (41), described back shroud (42), described upper cover plate (43), described base plate (44) and described two side cover plates (45) are mutually permanently connected by rivet, and formation one has the casing (4) of cavity.
7. as claimed in claim 6 by the battery system of liquid cools, it is characterized in that, on described front shroud (41), be provided with both positive and negative polarity wire hole (411), cover installing hole (412), BMS line outlet (413) and BMS installing hole (414); Described BMS control box is fixed on described front shroud (41) by described BMS installing hole (414); Described BMS control box is connected with described battery module (1) by described BMS line outlet (413).
8. as claimed in claim 6ly it is characterized in that by the battery system of liquid cools, described side cover plate (45) comprising:
The first side cover installing hole (451), described cooling aluminum pipe (3) extends to outside described casing (4) through described the first side cover installing hole (451);
The second side cover installing hole (452), described battery module (1) is fixed in described casing (4) by described the second side cover installing hole (452).
9. as claimed in claim 1 by the battery system of liquid cools, it is characterized in that, further comprise: pressing plate (6), described pressing plate (6) is arranged between described battery module (1) and described casing (4).
10. as claimed in claim 1ly it is characterized in that by the battery system of liquid cools, further comprise: BMS control box cover (7), described BMS control box is arranged in described BMS control box cover (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137767.4U CN203839423U (en) | 2014-03-25 | 2014-03-25 | Liquid cooling battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420137767.4U CN203839423U (en) | 2014-03-25 | 2014-03-25 | Liquid cooling battery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839423U true CN203839423U (en) | 2014-09-17 |
Family
ID=51517227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420137767.4U Expired - Lifetime CN203839423U (en) | 2014-03-25 | 2014-03-25 | Liquid cooling battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839423U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140592A (en) * | 2015-07-22 | 2015-12-09 | 江苏索尔新能源科技股份有限公司 | High-efficiency and energy-saving temperature-control on-board battery pack |
| CN105703034A (en) * | 2016-04-08 | 2016-06-22 | 深圳市国创动力系统有限公司 | Novel cooling system for lithium battery module of electric car |
| CN106252786A (en) * | 2016-09-18 | 2016-12-21 | 广东工业大学 | A kind of dynamic lithium battery module chiller |
| CN108232367A (en) * | 2016-12-15 | 2018-06-29 | 河南科隆汽车散热器有限公司 | A kind of new energy car battery group heat converter structure |
| CN111668405A (en) * | 2019-03-08 | 2020-09-15 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
-
2014
- 2014-03-25 CN CN201420137767.4U patent/CN203839423U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140592A (en) * | 2015-07-22 | 2015-12-09 | 江苏索尔新能源科技股份有限公司 | High-efficiency and energy-saving temperature-control on-board battery pack |
| CN105703034A (en) * | 2016-04-08 | 2016-06-22 | 深圳市国创动力系统有限公司 | Novel cooling system for lithium battery module of electric car |
| CN106252786A (en) * | 2016-09-18 | 2016-12-21 | 广东工业大学 | A kind of dynamic lithium battery module chiller |
| CN108232367A (en) * | 2016-12-15 | 2018-06-29 | 河南科隆汽车散热器有限公司 | A kind of new energy car battery group heat converter structure |
| CN111668405A (en) * | 2019-03-08 | 2020-09-15 | 比亚迪股份有限公司 | Battery pack and vehicle with same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |