CN113594587A - Passive heat preservation system of power battery - Google Patents

Passive heat preservation system of power battery Download PDF

Info

Publication number
CN113594587A
CN113594587A CN202110866260.7A CN202110866260A CN113594587A CN 113594587 A CN113594587 A CN 113594587A CN 202110866260 A CN202110866260 A CN 202110866260A CN 113594587 A CN113594587 A CN 113594587A
Authority
CN
China
Prior art keywords
box
passive
thermal insulation
heat preservation
power battery
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.)
Pending
Application number
CN202110866260.7A
Other languages
Chinese (zh)
Inventor
王志强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Xiaopeng Motors Technology Co Ltd
Original Assignee
Guangzhou Xiaopeng Motors Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou Xiaopeng Motors Technology Co Ltd filed Critical Guangzhou Xiaopeng Motors Technology Co Ltd
Priority to CN202110866260.7A priority Critical patent/CN113594587A/en
Publication of CN113594587A publication Critical patent/CN113594587A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

The utility model provides a passive heat preservation system of power battery, power battery includes module and the parcel that a plurality of electric cores are constituteed the box of module, the box includes box and lower box, the box includes the cooling plate and the end backplate of superpose from top to bottom down, a serial communication port, the passive heat preservation system of power battery is including passive insulation construction, passive insulation construction includes the cooling plate bottom thermal-insulated structure, locates the inside lateral part insulation construction in box both sides, locates the last box heat preservation of last box, locates the end backplate insulation construction of backplate lower surface at the bottom of the box. The passive heat preservation system for the power battery provided by the invention can keep the temperature of the battery under the condition of no loss or low loss of battery energy, and reduce the speed of reducing the temperature of the battery core.

Description

Passive heat preservation system of power battery
Technical Field
The invention relates to the technical field of new energy, in particular to a passive heat preservation system for a power battery.
Background
The highest winter parking temperature of northeast and Beijing areas is lower than 25 ℃, and the lowest temperature of partial vehicles can reach-20 ℃ when being started. Therefore, the heat preservation of the power battery is urgently needed.
Many of the existing power battery schemes are not insulated due to the limitations of energy density and arrangement space. The power assembly without the heat preservation design can reduce the discharge energy and the discharge power of the power battery, so that the driving range of the whole vehicle in winter is influenced.
The existing power battery adopts an active heat preservation design, namely, the battery is heated by heating cooling liquid through the electric quantity of the battery. This method causes battery energy loss and the thermal conditions are limited by the PTC heat transfer energy.
Therefore, how to maintain the battery temperature without loss or low-loss battery energy and reduce the cell temperature reduction speed is an urgent problem to be solved for power batteries.
The foregoing description is provided for general background information and is not admitted to be prior art.
Disclosure of Invention
The invention aims to provide a passive heat preservation system for a power battery, which can keep the temperature of the battery under the condition of no loss or low loss of battery energy and reduce the speed of reducing the temperature of a battery core.
The invention provides a power battery passive heat insulation system, wherein a power battery comprises a module consisting of a plurality of electric cores and a box body wrapping the module, the box body comprises an upper box body and a lower box body, the lower box body comprises a cooling plate and a bottom protection plate which are superposed up and down, the power battery passive heat insulation system comprises a passive heat insulation structure, and the passive heat insulation structure comprises a cooling plate bottom heat insulation structure, side heat insulation structures arranged inside two sides of the box body, an upper box body heat insulation layer arranged on the upper box body and a bottom protection plate heat insulation structure arranged on the lower surface of the bottom protection plate of the box body.
Further, the heat insulation structure at the bottom of the cooling plate is EPP foam adhered to the bottom of the cooling plate.
Further, the lateral heat-insulating structure is melamine adhered to the inner parts of two sides of the box body.
Furthermore, the upper box body heat-insulating layer is compounded on the inner layer of the upper box body.
Further, the bottom protection plate heat insulation structure is a PVC layer sprayed on the lower surface of the bottom protection plate of the box body.
Further, still include the heat insulating gasket that sets up at fixing bolt department between the end plate of module and the box.
Furthermore, the lower box body further comprises boundary beams fixed on two sides of the bottom protection plate, the power battery passive heat insulation system further comprises a boundary beam heat insulation structure, and the power battery passive heat insulation system further comprises boundary beam heat insulation structures arranged outside the boundary beams on two sides of the box body.
Furthermore, the boundary beam heat-insulating structure is a PVC layer sprayed on the outer portions of the boundary beams on the two sides of the box body.
Furthermore, the device also comprises a blocking structure for blocking the boundary beam cavity.
Furthermore, the wind shielding device also comprises a wind shielding strip which is arranged above the upper box body and is used for forming an independent closed space between the top of the power battery and the floor of the vehicle body.
According to the passive heat insulation system for the power battery, provided by the invention, the battery temperature can be kept under the condition of no loss or low loss of battery energy by arranging various passive heat insulation structures, and the speed of reducing the battery core temperature is reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of a passive thermal insulation system for a power battery according to an embodiment of the invention.
Fig. 2 is an exploded perspective view of the passive thermal insulation system for power batteries shown in fig. 1.
Fig. 3 is a schematic diagram of a heat insulation structure at the bottom of a cooling plate in the passive heat insulation system for power batteries shown in fig. 1.
Fig. 4 is a schematic view of a module and a heat insulation spacer in the passive thermal insulation system for power battery shown in fig. 1.
Fig. 5 is a schematic diagram of a box body and a side heat preservation structure in the power battery passive heat preservation system shown in fig. 1.
Fig. 6 is a schematic diagram of an upper box body and an upper box body heat insulation layer in the power battery passive heat insulation system shown in fig. 1.
Fig. 7 is a schematic view of the heat insulation structure of the bottom guard plate and the bottom guard plate in the passive heat insulation system for power battery shown in fig. 1.
Fig. 8 is a schematic view of an edge beam and a plugging structure in the passive thermal insulation system for power batteries shown in fig. 1.
Fig. 9 is a schematic view of an upper box body and a weather strip in the passive heat preservation system for power batteries shown in fig. 1.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 and fig. 2, a passive thermal insulation system for a power battery according to an embodiment of the present invention is used for insulating the power battery 1. The power battery 1 comprises a module 11 consisting of a plurality of battery cells and a box body (not marked) wrapping the module 11, wherein the box body consists of an upper box body 12 and a lower box body 13. The lower case 13 includes a cooling plate 131, a bottom cover 132, and edge beams 133 fixed to both sides of the bottom cover 132. The lower case 13 is fixed to the upper case 12 by the side beam 133.
In this embodiment, the passive heat preservation system of power battery includes and prevents that external heat from passing to power battery assembly inside when being used for blocking the inside heat transfer route high temperature of power battery, and the heat is difficult to transmit the passive insulation structure to the external environment during the low temperature. In this embodiment, the passive heat insulation structure includes a cooling plate bottom heat insulation structure 2 (as shown in fig. 3), a heat insulation gasket 3 (as shown in fig. 4) disposed between an end plate (not shown) of the module 11 and the box body at the position of the fixing bolt 111, a lateral heat insulation structure (as shown in fig. 5) disposed inside two sides of the box body, an upper box body heat insulation layer 4 (as shown in fig. 6) disposed on the upper box body 12, a bottom protection plate heat insulation structure (as shown in fig. 7) disposed on a lower surface of the bottom protection plate 132, the bottom protection plate heat insulation structure being sprayed on the dashed frame area, an edge beam heat insulation structure (not shown) disposed outside edge beams at two sides of the box body, a blocking structure 5 (as shown in fig. 8) blocking the edge beam cavity, and a wind shielding strip 6 (as shown in fig. 9) disposed above the upper box body 12 for forming an independent closed space between the top of the power battery 1 and a floor (not shown) of the vehicle body.
As shown in fig. 3, the heat insulation structure 2 at the bottom of the cooling plate is used for blocking the downward heat transfer. Since the module 11 or the cell is usually adhered to the cooling plate 131 in the form of glue, the heat conducting layer between the cooling plate 131 and the module 11 or the cell is very important for heat dissipation and heating. Therefore, the cooling plate bottom heat insulation structure 2 provided at the bottom of the cooling plate 131 can effectively prevent heat from being dissipated. In this embodiment, the cooling plate bottom heat insulating structure 2 is EPP (expanded polypropylene) foam adhered to the bottom of the cooling plate 131, and has a material thickness of 3mm or more.
As shown in fig. 4, the heat insulating gasket 3 provided between the end plate of the module 11 and the case at the fixing bolt 111 transfers heat through the fixing position with respect to the heat at the fixing position of the module. In this embodiment, the thickness of the heat insulating spacer 3 is 1 mm.
As shown in fig. 5, the side heat-insulating structure is used for heat convection between the air around the module 11 and the box and the module 11. In this embodiment, the side heat-insulating structure is melamine adhered to the inside of the two sides of the box body, and the thickness of the material needs to match the distance between the box body boundary beam 133 and the module 11.
As shown in fig. 6, the upper tank insulating layer 4 is a heat convection layer that is generated in a gap between the upper portion of the module 11 and the upper tank 12. In this embodiment, the upper box heat-insulating layer 4 is directly combined (by bonding or bolt fixing) to the inner layer of the upper box 12, so that the assembly is convenient and the assembly efficiency is improved. The upper box insulating layer 4 needs to be matched with the upper box 12 in structure, and can adopt basically the same shape, but has a slightly smaller size.
As shown in fig. 7, in this embodiment, the bottom protection plate heat preservation structure is sprayed on the lower surface of the bottom protection plate of the box body (although other fixing methods can be adopted, the spraying process is simple, the material is thin, and the effect is good), and the material can be a PVC (polyvinyl chloride) layer, which can be used for heat preservation and also can be used for preventing ball impact and collision. In the present embodiment, the thermal conductivity of PVC can be reduced to 0.06-0.08W/(m.K) (generally about 0.2) when the coating is sprayed with foamed PVC to prevent ball impact.
The material and the fixing mode of the boundary beam heat-insulating structure can also adopt the same material as the bottom guard plate heat-insulating structure, namely PVC layers sprayed on the outer parts of the boundary beams at the two sides of the box body.
As shown in fig. 8, the blocking structure 5 for blocking the cavity of the edge beam 133 is used for the heat convection between the box body and the air caused by the leakage of the cavity outside the edge beam 133. Because current power battery box is mostly the aluminium alloy, inside is the cavity structure. The cavity outside the boundary beam 133 leaks outwards, which may cause convection heat exchange between the box body and the air, and affect the heat exchange of the box body. In this embodiment, the cavity of the boundary beam 133 is blocked, so that the heat convection between the air and the box body can be blocked.
As shown in fig. 9, the weather strip 6 is a heat exchange generated in the gap between the top of the power battery 1 and the bottom of the vehicle body. Due to the presence of this gap, air is free to circulate, which would intensify the heat exchange between the air and the power cell. In the embodiment, the wind shielding strip 6 is arranged above the upper box body 12, so that the top of the power battery 1 and the floor of the vehicle body form an independent closed cavity, and the convection heat exchange of air in the area can be effectively avoided.
The bottom heat insulation structure of the cooling plate, the heat insulation gasket arranged between the end plate and the box body at the position of the fixing bolt, the side heat insulation structures arranged inside two sides of the box body and the upper box body heat insulation layer compounded on the upper box body belong to internal heat insulation. The bottom protection plate heat preservation structure sprayed on the lower surface of the bottom protection plate of the box body, the boundary beam heat preservation structure sprayed on the outer portions of the boundary beams on the two sides of the box body, the blocking structure for blocking the cavity of the boundary beam, and the wind shielding strip arranged above the upper box body and used for enabling an independent closed space to be formed between the top of the power battery and the floor of the vehicle body belong to external heat preservation.
All the passive heat preservation structures are combined together, each heat transfer path in the power battery can be blocked, external heat is prevented from being transferred to the interior of the power battery assembly at high temperature, heat is difficult to be transferred to the external environment at low temperature, the optimal heat preservation effect is achieved under the condition of no loss or low loss of battery energy, the battery temperature can be remarkably kept, and the reduction speed of the battery core temperature is reduced.
In other embodiments, only part of the specific heat insulation structure can be adopted to block part of the heat transfer path according to requirements. Including only cooling plate bottom thermal insulation structure, lateral part insulation construction, last box heat preservation, end backplate insulation construction for example, can block the faster route of part heat transfer like this, also can realize heat retaining effect equally to can reduce the material when realizing the heat preservation effect of preferred, reduce cost promotes processing and assembly efficiency.
According to the trend of heat transfer, the temperature of the battery core, which is close to the edge of the box body, around the power battery is cooled at a high speed, and the temperature is a low-temperature region. The core temperature reduction rate at the middle position of the power battery is relatively slow, and the core temperature reduction rate is a high-temperature region. Therefore, the passive heat insulation structure in the low-temperature area, such as the side heat insulation structure, can realize heat insulation, and can block the heat transfer path of the low-temperature area, thereby reducing the temperature difference between the electric cores in the cooling process.
In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of clarity and convenience of description of the technical solutions, and thus, should not be construed as limiting the present invention.
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a passive heat preservation system of power battery, power battery includes module and the parcel that a plurality of electric cores are constituteed the box of module, the box includes box and lower box, the box includes the cooling plate and the end backplate of superpose from top to bottom down, a serial communication port, the passive heat preservation system of power battery is including passive insulation construction, passive insulation construction includes the cooling plate bottom thermal-insulated structure, locates the inside lateral part insulation construction in box both sides, locates the last box heat preservation of last box, locates the end backplate insulation construction of backplate lower surface at the bottom of the box.
2. The passive thermal insulation system for power batteries according to claim 1, wherein the thermal insulation structure at the bottom of the cooling plate is EPP foam adhered to the bottom of the cooling plate.
3. The passive thermal insulation system for power batteries according to claim 1, wherein the lateral thermal insulation structure is melamine adhered to the inner portions of two sides of the box body.
4. The passive thermal insulation system for power batteries according to claim 1, wherein the upper box thermal insulation layer is compounded on the inner layer of the upper box.
5. The passive thermal insulation system for power batteries according to claim 1, wherein the bottom protection plate thermal insulation structure is a PVC layer sprayed on the lower surface of the bottom protection plate of the box body.
6. The passive thermal insulation system for power batteries according to claim 1, further comprising a thermal insulating gasket disposed between the end plate of the module and the case at the fixing bolt.
7. The passive heat preservation system for power batteries according to claim 1, wherein the lower box further comprises edge beams fixed to both sides of the bottom guard plate, and the passive heat preservation system for power batteries further comprises edge beam heat preservation structures arranged outside the edge beams on both sides of the box.
8. The passive thermal insulation system for power batteries according to claim 7, wherein the edge beam thermal insulation structure is a PVC layer sprayed on the outer portions of the edge beams on both sides of the box body.
9. The passive thermal insulation system for power batteries according to claim 7, further comprising a blocking structure for blocking the cavity of the boundary beam.
10. The passive thermal insulation system for the power battery according to claim 1, further comprising a weather strip arranged above the upper box body so as to form an independent closed space between the top of the power battery and the floor of the vehicle body.
CN202110866260.7A 2021-07-29 2021-07-29 Passive heat preservation system of power battery Pending CN113594587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110866260.7A CN113594587A (en) 2021-07-29 2021-07-29 Passive heat preservation system of power battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110866260.7A CN113594587A (en) 2021-07-29 2021-07-29 Passive heat preservation system of power battery

Publications (1)

Publication Number Publication Date
CN113594587A true CN113594587A (en) 2021-11-02

Family

ID=78252032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110866260.7A Pending CN113594587A (en) 2021-07-29 2021-07-29 Passive heat preservation system of power battery

Country Status (1)

Country Link
CN (1) CN113594587A (en)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107305932A (en) * 2016-04-20 2017-10-31 北京普莱德新能源电池科技有限公司 A kind of power cell box for electric automobile body
CN207676971U (en) * 2017-12-27 2018-07-31 宁德时代新能源科技股份有限公司 Battery pack
CN110350114A (en) * 2018-04-03 2019-10-18 中信国安盟固利动力科技有限公司 A kind of heat-insulating flame-retardant battery case
CN111725455A (en) * 2020-06-12 2020-09-29 上汽通用汽车有限公司 Battery module reaches battery package including it
CN211789133U (en) * 2020-01-20 2020-10-27 比亚迪股份有限公司 Battery module, battery pack and electric vehicle
CN211907530U (en) * 2020-05-11 2020-11-10 上海元城汽车技术有限公司 Battery package guard plate, battery package module and vehicle
WO2020252846A1 (en) * 2019-06-21 2020-12-24 比亚迪股份有限公司 Power battery pack and vehicle
CN112290143A (en) * 2020-10-21 2021-01-29 孚能科技(赣州)股份有限公司 Power battery and vehicle
CN213304253U (en) * 2020-11-27 2021-05-28 北京时代瑞程新能源科技有限公司 Battery pack box with heating function
CN213546489U (en) * 2020-09-30 2021-06-25 北京车和家信息技术有限公司 Carrier bar for battery pack, battery pack and vehicle
CN213584051U (en) * 2020-09-29 2021-06-29 奇瑞新能源汽车股份有限公司 Battery heat exchange structure with heat preservation function

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107305932A (en) * 2016-04-20 2017-10-31 北京普莱德新能源电池科技有限公司 A kind of power cell box for electric automobile body
CN207676971U (en) * 2017-12-27 2018-07-31 宁德时代新能源科技股份有限公司 Battery pack
CN110350114A (en) * 2018-04-03 2019-10-18 中信国安盟固利动力科技有限公司 A kind of heat-insulating flame-retardant battery case
WO2020252846A1 (en) * 2019-06-21 2020-12-24 比亚迪股份有限公司 Power battery pack and vehicle
CN211789133U (en) * 2020-01-20 2020-10-27 比亚迪股份有限公司 Battery module, battery pack and electric vehicle
CN211907530U (en) * 2020-05-11 2020-11-10 上海元城汽车技术有限公司 Battery package guard plate, battery package module and vehicle
CN111725455A (en) * 2020-06-12 2020-09-29 上汽通用汽车有限公司 Battery module reaches battery package including it
CN213584051U (en) * 2020-09-29 2021-06-29 奇瑞新能源汽车股份有限公司 Battery heat exchange structure with heat preservation function
CN213546489U (en) * 2020-09-30 2021-06-25 北京车和家信息技术有限公司 Carrier bar for battery pack, battery pack and vehicle
CN112290143A (en) * 2020-10-21 2021-01-29 孚能科技(赣州)股份有限公司 Power battery and vehicle
CN213304253U (en) * 2020-11-27 2021-05-28 北京时代瑞程新能源科技有限公司 Battery pack box with heating function

Similar Documents

Publication Publication Date Title
CN105390636B (en) Battery box
US10720680B2 (en) Tray assembly for automobile use, battery pack body for automobile use and automobile
CN107004919A (en) Battery and the unmanned vehicle with the battery
CN209766605U (en) Power battery package and vehicle
CN215705632U (en) Vehicle floor and battery pack integrated device and vehicle
CN213026305U (en) Power battery package and vehicle
US11888134B2 (en) Battery pack and vehicle comprising the battery pack
EP3937273A1 (en) Battery pack
CN112290143B (en) Power battery and vehicle
CN112117400A (en) Power battery package and vehicle
CN113437414A (en) Battery module with heat conduction buffer structure
CN113594587A (en) Passive heat preservation system of power battery
CN211828961U (en) Novel liquid cooling heat dissipation device for power battery
CN113314784A (en) Power battery module of integrated liquid cooling
CN211789133U (en) Battery module, battery pack and electric vehicle
CN113067052A (en) Power battery cooling system and vehicle
CN210926233U (en) Battery module and battery pack
CN216085026U (en) Battery pack shell and battery pack
CN214625255U (en) Battery pack and vehicle
CN212162023U (en) Lithium ion battery photo frame filled with phase change material
CN209822709U (en) Lithium battery temperature control device
CN209626292U (en) A kind of high-tension battery structure and vehicle for vehicle
CN220604799U (en) Battery pack and vehicle
CN207398216U (en) A kind of air-cooled battery system
CN220324543U (en) Cover plate for battery pack, battery pack and vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20211102

RJ01 Rejection of invention patent application after publication