CN212257503U - Battery module electric connection device, battery module and battery pack assembly - Google Patents
Battery module electric connection device, battery module and battery pack assembly Download PDFInfo
- Publication number
- CN212257503U CN212257503U CN202021090740.6U CN202021090740U CN212257503U CN 212257503 U CN212257503 U CN 212257503U CN 202021090740 U CN202021090740 U CN 202021090740U CN 212257503 U CN212257503 U CN 212257503U
- Authority
- CN
- China
- Prior art keywords
- protection
- battery
- battery module
- thermal
- thin plate
- 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.)
- Active
Links
Images
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a battery module electric connection device, battery module and battery package assembly. The battery module electrical connection device includes: the thermal protection device comprises a thermal protection body, a first thermal protection device and a second thermal protection device, wherein at least one protection thin plate is formed on the thermal protection body, and the thickness of the protection thin plate is smaller than a first set threshold value and larger than a second set threshold value; the first set threshold value is a maximum thickness value suitable for hot airflow to pass through after the battery core is thermally out of control; the hot airflow after the thermal runaway of the battery core passes through the protective sheet to obtain the hot airflow after pressure reduction, and the second set threshold value is the maximum thickness value suitable for the hot airflow after pressure reduction to pass through; at least a pair of electric connection board, every pair of electric connection board sets up in the both sides of protection sheet metal relatively, and each electric connection board and thermal protection body fixed connection, and each electric connection board all is used for being connected with the electric core electrode of battery module. The thermal protection body is integrated to the electric connection plate and is provided with a protection thin plate, hot air flow sprayed out after the thermal runaway of the battery core is guided to be sprayed out from the protection thin plate, and the battery core is prevented from returning to other battery cores through other protection thin plates.
Description
Technical Field
The utility model relates to a power battery technical field, concretely relates to battery module electric connection device, battery module and battery package assembly.
Background
The electric automobile has great advantages in energy conservation and environmental protection, and is increasingly favored by people. With the continuous improvement of the requirement on the endurance mileage, the energy density of the battery is higher and higher, and especially in the popularization and application of high-energy ternary lithium batteries in recent years, safety problems caused by thermal runaway of power batteries are highly concerned by various circles. Therefore, how to design the battery module to improve the thermal safety of the battery pack and ensure the personal safety of passengers is a problem that every power battery design engineer pays attention to.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery module electric connection device, battery module and battery package assembly, through integrated fixed connection thermal protection body on the electricity link plate, and set up the protection thin plate on the thermal protection body, the electricity link plate is used for and matches the inside electric core electrode connection of battery module of equipment, the thermal protection body is used for the inside electric core butt of battery module with matching the equipment, and the explosion-proof valve position of protection thin plate corresponding electric core, make electric core thermal runaway and explosion-proof valve open back spun hot gas flow and can pass the protection thin plate, nevertheless pass the hot gas flow pressure reduction behind the protection thin plate, be not enough return to other electric core departments through other protection thin plates, further improve the security.
The utility model provides a battery module electricity connecting device includes:
the thermal protection device comprises a thermal protection body, a first thermal protection device and a second thermal protection device, wherein at least one protection thin plate is formed on the thermal protection body, and the thickness of the protection thin plate is smaller than a first set threshold value and larger than a second set threshold value; the first set threshold value is a maximum thickness value suitable for hot airflow to pass through after the battery core is thermally out of control; the hot airflow after the thermal runaway of the battery core passes through the protective sheet to obtain a hot airflow after pressure reduction, and the second set threshold is a maximum thickness value suitable for the hot airflow after the pressure reduction to pass through;
each pair of electric connection plates is oppositely arranged on two sides of the protection thin plate, each electric connection plate is fixedly connected with the heat protection body, and each electric connection plate is used for being connected with a battery cell electrode of the battery module.
Optionally, the electrical connection plate is adhesively connected with the heat protection body.
Optionally, the cross-sectional shape and area of the protective thin plate are matched with those of the cell explosion-proof valve.
Optionally, a plurality of first protection grooves are formed in the first surface of the thermal protection body; the groove bottom of each first protection groove is used as the protection thin plate; or a plurality of second protection grooves are formed in the first surface of the thermal protection body corresponding to the positions of the explosion-proof valves; a plurality of third protection grooves are formed in the second surface of the thermal protection body, and each third protection groove is arranged opposite to one second protection groove; and the joint of the second protection groove and the third protection groove is used as the protection thin plate.
Optionally, the thermal protection body is made of mica.
The utility model also provides a battery module, which comprises a shell, a plurality of electric cores arranged in the shell and an upper cover covered on the electric cores, wherein an explosion-proof valve is arranged on one side surface of each electric core facing the upper cover; the electric connecting device is arranged between the battery cell and the upper cover; the protective thin plate in the electric connecting device corresponds to the explosion-proof valve of the battery cell, and the electric connecting plates in the electric connecting device are respectively and electrically connected with the electrodes of the battery cell.
Optionally, a gap is provided between the electrical connection device and the upper cover.
Optionally, a heat insulation sheet is arranged between the adjacent electric cores.
The utility model also provides a battery package assembly, including total casing, set up a plurality of as above-mentioned arbitrary in total casing battery module and cover locate the total upper cover on a plurality of battery modules.
Optionally, the battery pack assembly further comprises at least one main explosion-proof valve, and at least one main explosion-proof valve is arranged on one side surface of the main shell.
Adopt the utility model discloses battery module electric connection device, battery module and battery package assembly are with the heat protection body integration to the electric connecting plate on, and the explosion-proof valve department that corresponds electric core at the heat protection body sets up the protection sheet metal, guide electric core thermal runaway and explosion-proof valve open back spun hot gas stream spout from protection sheet metal department, and prevent that spun hot gas from flowing through other protection sheet metals and returning to other electric cores, blocked thermal convection and the radiation of thermal runaway electric core spun hot gas stream to adjacent electric core.
Drawings
Fig. 1 is a schematic view of an electrical connection device for a battery module according to an embodiment of the present invention;
fig. 2 is a side view of a heat shielding body in the electrical connection device for a battery module shown in fig. 1;
fig. 3 is a cross-sectional view of a heat shielding body at a-a' in the electrical connection device for a battery module shown in fig. 1;
fig. 4 is an enlarged view of a portion of the thermal protection body shown in fig. 3.
Reference numerals:
1: a thermal protection body; 2: a protective sheet; 3: an electrical connection plate; 4: a metal member; 15: a non-metallic component.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or component to which the reference is made must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Fig. 1 is a schematic view illustrating a battery module electrical connection device according to an embodiment of the present invention, fig. 2 is a side view illustrating a thermal protection body in the battery module electrical connection device of fig. 1, fig. 3 is a cross-sectional view illustrating the thermal protection body in the battery module electrical connection device of fig. 1 at a-a', and fig. 4 is a partially enlarged view illustrating the thermal protection body of fig. 3.
As shown in fig. 1-4, the battery module electrical connection device includes a thermal protection body 1 and at least one pair of electrical connection plates 3, at least one protection thin plate 2 is formed on the thermal protection body 1, and the thickness of the protection thin plate 2 is smaller than a first set threshold and larger than a second set threshold; the first set threshold value is a maximum thickness value suitable for hot airflow to pass through after the battery core is thermally out of control; the hot airflow after the thermal runaway of the battery core passes through the protective sheet to obtain a hot airflow after pressure reduction, and the second set threshold is a maximum thickness value suitable for the hot airflow after the pressure reduction to pass through; each pair of the electric connection plates 3 is oppositely arranged on two sides of the protection thin plate 2, each electric connection plate 3 is fixedly connected with the thermal protection body 1, and each electric connection plate 3 is used for being connected with a battery cell electrode of a battery module. The thermal protection body 1 is integrated on the electric connection plate 3, the protection thin plate 2 is arranged at the position, corresponding to the explosion-proof valve of the battery cell, of the thermal protection body 1, hot air sprayed out of the thermal protection body 2 after the battery cell is subjected to thermal runaway and the explosion-proof valve is opened is guided to be sprayed out of the protection thin plate 2, the sprayed hot air is prevented from flowing through other protection thin plates 2 and returning to other battery cells, and thermal convection and radiation of the hot air sprayed out of the thermal runaway battery cell to adjacent battery cells are blocked.
In this embodiment, the thermal protection body 1 is a rectangular plate, sixteen protection thin plates 2 are uniformly arranged on the same side surface of the thermal protection body 1 at intervals, the cross section of the protective thin plate 2 is rectangular in the middle, two ends in the length direction of the rectangle are in mirror symmetry and are in a semicircular structure, the thermal protection body 1 is used for abutting against one side surface of the battery cell in the battery module, which is provided with the explosion-proof valve, the shape and size of the cross section of the protective thin plate 2 can be matched with the shape and size of the cross section of the battery cell explosion-proof valve, or can be partially matched with the cross section of the battery cell explosion-proof valve, as long as the protective thin plate 2 can guide hot air flow to penetrate out of the protective thin plate 2 after the battery cell is out of thermal control and the explosion-proof valve is opened, and prevent that the hot gas flow from other protection sheet 2 department returns to other electric cores department can, the quantity of protection sheet 2 can set up to the different value according to the electric core quantity in the different battery module.
In this embodiment, four pairs of the electrical connection plates 3 are provided, each pair of the electrical connection plates 3 is disposed on two sides of the protection thin plate 2, each electrical connection plate 3 includes a metal piece 4 and a non-metal piece 5 surrounding the metal piece 4, the metal piece 4 is used for being connected with an electrode of an electric core in a battery module, the non-metal piece 5 is adhesively connected with the thermal protection body 1, in this embodiment, each metal piece 4 is used for connecting electrodes of four electric cores, the number of the electric core electrodes connected with each metal piece 4 is set according to different series-parallel requirements of different battery modules, and the non-metal piece 5 and the thermal protection body 1 may also adopt other fixed connection modes except for adhesion.
According to different brands and specifications of cells in a battery module to be assembled by the battery module electrical connection device, the first set threshold and the second set threshold of the thickness of the protective sheet 2 are obtained through experiments, so that hot air ejected after the cells are thermally out of control and the explosion-proof valve is opened can pass through the protective sheet 2 but cannot pass back to other cells from other protective sheets 2, in this embodiment, the first set threshold of the protective sheet 2 is 1.5mm, the second set threshold is 0.5mm, the thickness of the protective sheet 2 should be within a thickness range of 0.5-1.5mm, the first set threshold and/or the second set threshold are different for different cells, the range of the first set threshold is generally 0.5-1.5mm, the range of the second set threshold is generally 0.1-0.5mm, for different battery cores, the range can be changed, the thickness of the protective thin plate 2 needs to be adjusted according to different experimental results, and the hot air flow penetrates out of the protective thin plate 2 and then can be dispersed from the gap of the battery module because the battery module is not a closed space.
In this embodiment with the electric core of battery module electric connector equipment is square electric core and introduces as an example, and likewise, this technical concept also can be applied to and cooperates the equipment with cylindrical electric core or other electric cores, and according to the common general knowledge in this field, it is right to different electric cores the utility model discloses battery module electric connector's structure carries out the adaptability adjustment to obtain being applicable to different electric cores battery module electric connector also belongs to the utility model discloses the scope of protecting.
Preferably, the electrical connection plate 3 is adhesively connected to the heat protection body 1. And the adhesive connection mode is adopted, so that the operation process is simple, and the work efficiency is favorably improved.
Preferably, the cross-sectional shape and area of the protective thin plate 2 are matched with those of the cell explosion-proof valve. Due to the arrangement, the battery module electric connection device and the battery module are assembled, the sprayed hot air can penetrate through the protective thin plate 2 to the maximum extent after the battery core is out of control due to heat and the explosion-proof valve is opened, the radiating speed of the hot air is increased, and the possibility that other battery cores are influenced is reduced.
Preferably, a plurality of first protection grooves are formed on the first surface of the thermal protection body 1; the groove bottom of each first protection groove is used as the protection thin plate 2; or, a plurality of second protection grooves are formed in the first surface of the thermal protection body 1 corresponding to the explosion-proof valve, a plurality of third protection grooves are formed in the second surface of the thermal protection body 1, each third protection groove is arranged back to one second protection groove, and the joint of each second protection groove and each third protection groove serves as the protection sheet 2. The protection thin plate 2 is obtained by the mode of arranging the grooves, the operation is simple, the realization is easy, the work efficiency is favorably improved, the thickness is thick, the deep grooves are arranged on one side surface of the thermal protection body 1, the operation is not easy, the second protection grooves and the third protection grooves are arranged on the two opposite side surfaces, only two shallow grooves are arranged, the thickness of the joints is ensured to be smaller than the first set threshold value and larger than the second set threshold value, and the operation difficulty is reduced.
In this embodiment, sixteen even intervals of setting are seted up on the homonymy surface of thermal protection body 1 first protection recess, every first protection recess all to the opposite side surface that thermal protection body 1 is relative extends, the tank bottom of first protection recess is as protection sheet 2, protection sheet 2 be used for with the interior electric core butt of battery module. According to the thickness and the actual situation of the thermal protection body 1, the protection thin plate 2 can be obtained by respectively forming grooves on the two opposite side surfaces of the thermal protection body 1.
Preferably, the thermal protection body 1 is made of mica. Mica has good mechanical strength, electrical insulation performance and high temperature resistance, and the heat protection body 1 is made of mica, so that the strength and the insulation performance of the heat protection body 1 are improved.
The manufacturing and using processes of the battery module electric connecting device are further described as follows:
according to the shape and size of the cross section of an explosion-proof valve of a battery cell in a battery module to be assembled, the first protection grooves are formed in the surface of the same side of the thermal protection body 1 corresponding to the explosion-proof valve, the shape and size of the cross section of the first protection grooves are matched with the shape and size of the cross section of the explosion-proof valve, the number of the first protection grooves is the same as the number of the explosion-proof valve, the bottom of each first protection groove is the protection thin plate 2, the thickness of each protection thin plate 2 is smaller than the maximum thickness value which can be penetrated by a hot air flow after the thermal runaway of the battery cell and larger than the maximum thickness value which can be penetrated by the hot air flow after the hot air flow passes through the protection thin plate 2 after the pressure reduction, the electric connection plates 3 with a plurality of matched lengths are manufactured according to the connection mode of the electrode of the battery cell in the battery module to be assembled, each electric connection plate 3 comprises a metal piece 4 and, the metal piece 4 is used for being connected with an electric core electrode in the battery module, the non-metal piece 5 positioned on one side of the metal piece 4 is connected with the thermal protection body 1 in an adhesive mode, the battery module electric connection device is assembled inside the battery module as a whole, the electric connection plate 3 is used for being connected with the electrode of the electric core, the thermal protection body 1 is used for being abutted against the electric core, and the position of the protection thin plate 2 arranged on the thermal protection body 1 corresponds to the position of an explosion-proof valve of the electric core.
The thermal protection body 1 is integrated on the electric connection plate 3, the protection thin plate 2 is arranged at the position, corresponding to the explosion-proof valve of the battery cell, of the thermal protection body 1, hot air sprayed out of the thermal protection body 2 after the battery cell is subjected to thermal runaway and the explosion-proof valve is opened is guided to be sprayed out of the protection thin plate 2, the sprayed hot air is prevented from flowing through other protection thin plates 2 and returning to other battery cells, and thermal convection and radiation of the hot air sprayed out of the thermal runaway battery cell to adjacent battery cells are blocked.
The utility model also provides a battery module, which comprises a shell, a plurality of electric cores arranged in the shell and an upper cover covered on the electric cores, wherein an explosion-proof valve is arranged on one side surface of each electric core facing the upper cover; the electric connecting device is arranged between the battery cell and the upper cover; the protective thin plate 2 in the electric connection device corresponds to the explosion-proof valve of the battery cell, and the electric connection plates 3 in the electric connection device are respectively and electrically connected with the electrodes of the battery cell.
Preferably, a gap is provided between the electrical connection device and the upper cover. The arrangement is favorable for the hot air flow to be diffused to the space between the electric connecting device and the upper cover and is favorable for being quickly exhausted to the outside of the battery module from the space.
The size of the gap between the electric connecting device and the upper cover can be adjusted according to the heat dissipation condition of the battery module.
Preferably, a heat insulation sheet is arranged between the adjacent electric cores. Set up the heat insulating sheet between the adjacent electric core, can further the separation the thermal diffusion between the inside adjacent electric core of battery module.
The utility model also provides a battery package assembly, including total casing, set up a plurality of above-mentioned arbitrary items in total casing battery module and cover locate the total upper cover on a plurality of battery modules.
Preferably, the battery pack assembly further comprises at least one main explosion-proof valve, and the at least one main explosion-proof valve is arranged on one side surface of the main shell. The total explosion-proof valve is arranged in the battery pack assembly, so that when the temperature and the pressure in the battery pack assembly reach a certain value, the temperature and the pressure in the battery pack assembly can be released by the total explosion-proof valve, and dangerous accidents such as explosion of the battery pack assembly are prevented.
The setting number of the total explosion-proof valves can be set to be one or more according to needs, and the setting position of the total explosion-proof valves can be determined according to experimental results.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A battery module electrical connection device, comprising:
the thermal protection device comprises a thermal protection body, a first thermal protection device and a second thermal protection device, wherein at least one protection thin plate is formed on the thermal protection body, and the thickness of the protection thin plate is smaller than a first set threshold value and larger than a second set threshold value; the first set threshold value is a maximum thickness value suitable for hot airflow to pass through after the battery core is thermally out of control; the hot airflow after the thermal runaway of the battery core passes through the protective sheet to obtain a hot airflow after pressure reduction, and the second set threshold is a maximum thickness value suitable for the hot airflow after the pressure reduction to pass through;
each pair of electric connection plates is oppositely arranged on two sides of the protection thin plate, each electric connection plate is fixedly connected with the heat protection body, and each electric connection plate is used for being connected with a battery cell electrode of the battery module.
2. The battery module electrical connection device according to claim 1, wherein:
the electric connection plate is connected with the thermal protection body in an adhesive mode.
3. The battery module electrical connection device according to claim 1 or 2, wherein:
the cross-sectional shape and the area of the protective thin plate are matched with those of the explosion-proof valve of the battery cell.
4. The battery module electrical connection device according to claim 3, wherein:
a plurality of first protection grooves are formed in the first surface of the thermal protection body; the groove bottom of each first protection groove is used as the protection thin plate; alternatively, the first and second electrodes may be,
a plurality of second protection grooves are formed in the first surface of the thermal protection body corresponding to the explosion-proof valve;
a plurality of third protection grooves are formed in the second surface of the thermal protection body, and each third protection groove is arranged opposite to one second protection groove;
and the joint of the second protection groove and the third protection groove is used as the protection thin plate.
5. The battery module electrical connection device according to claim 1 or 2, wherein:
the heat protection body is made of mica materials.
6. A battery module comprises a shell, a plurality of battery cores arranged in the shell and an upper cover covering the battery cores, wherein an explosion-proof valve is arranged on one side surface of each battery core, which faces the upper cover, and the battery module is characterized by further comprising a battery module electric connection device as set forth in any one of claims 1-5; the electric connecting device is arranged between the battery cell and the upper cover; the protective thin plate in the electric connecting device corresponds to the explosion-proof valve of the battery cell, and the electric connecting plates in the electric connecting device are respectively and electrically connected with the electrodes of the battery cell.
7. The battery module according to claim 6, wherein:
a gap is arranged between the electric connecting device and the upper cover.
8. The battery module according to claim 6 or 7, wherein:
and a heat insulation sheet is arranged between every two adjacent electric cores.
9. A battery pack assembly comprising an overall housing, a plurality of battery modules according to any one of claims 6 to 8 disposed within the overall housing, and an overall upper cover covering the plurality of battery modules.
10. The battery pack assembly of claim 9, further comprising:
at least one main explosion-proof valve, at least one main explosion-proof valve sets up in a side surface of main casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090740.6U CN212257503U (en) | 2020-06-12 | 2020-06-12 | Battery module electric connection device, battery module and battery pack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090740.6U CN212257503U (en) | 2020-06-12 | 2020-06-12 | Battery module electric connection device, battery module and battery pack assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212257503U true CN212257503U (en) | 2020-12-29 |
Family
ID=73987251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021090740.6U Active CN212257503U (en) | 2020-06-12 | 2020-06-12 | Battery module electric connection device, battery module and battery pack assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212257503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156083A1 (en) * | 2021-01-21 | 2022-07-28 | 江苏正力新能电池技术有限公司 | Battery module for preventing thermal diffusion and battery pack |
| CN115275494A (en) * | 2022-08-18 | 2022-11-01 | 合众新能源汽车有限公司 | Battery module with inverted battery core |
-
2020
- 2020-06-12 CN CN202021090740.6U patent/CN212257503U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156083A1 (en) * | 2021-01-21 | 2022-07-28 | 江苏正力新能电池技术有限公司 | Battery module for preventing thermal diffusion and battery pack |
| CN115275494A (en) * | 2022-08-18 | 2022-11-01 | 合众新能源汽车有限公司 | Battery module with inverted battery core |
| CN115275494B (en) * | 2022-08-18 | 2024-05-24 | 合众新能源汽车股份有限公司 | Battery module with inverted battery cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111725454B (en) | Battery module and battery pack assembly | |
| CN212257503U (en) | Battery module electric connection device, battery module and battery pack assembly | |
| US20210119298A1 (en) | Protective plate, battery unit assembly, battery module group and vehicle | |
| CN113540651A (en) | Power battery module and vehicle | |
| CN113574726A (en) | Battery module | |
| CN213340641U (en) | Battery module, power battery package and vehicle | |
| CN217719776U (en) | Battery core and cover plate assembly thereof, lithium battery and vehicle | |
| CN111276732A (en) | Monomer formula battery and battery module | |
| CN214589152U (en) | Battery and power consumption device | |
| CN113966565A (en) | Battery pack and transportation equipment | |
| JP5632402B2 (en) | Film exterior electrical device assembly | |
| CN212113764U (en) | Battery module upper cover, battery module and battery pack assembly | |
| CN111725455B (en) | Battery module and battery pack comprising same | |
| CN219371268U (en) | Battery, battery module and power device | |
| CN217768663U (en) | Explosion-proof valve, electric core, lithium cell and vehicle | |
| EP4340107A1 (en) | Battery module, battery pack, and vehicle | |
| CN215988999U (en) | Power battery module and vehicle | |
| CN217182297U (en) | End cover assembly, battery monomer, battery and consumer | |
| CN215527825U (en) | Battery module and battery pack | |
| CN212810468U (en) | Battery pack for preventing thermal runaway | |
| CN117013187A (en) | Battery and electric equipment | |
| CN219959332U (en) | Battery pack assembly and vehicle | |
| CN216529214U (en) | Power battery module structure | |
| CN217387322U (en) | Battery and vehicle with same | |
| CN217934172U (en) | Battery pack upper shell and power battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |