CN217158419U - Cylindrical battery pack - Google Patents
Cylindrical battery pack Download PDFInfo
- Publication number
- CN217158419U CN217158419U CN202220244974.4U CN202220244974U CN217158419U CN 217158419 U CN217158419 U CN 217158419U CN 202220244974 U CN202220244974 U CN 202220244974U CN 217158419 U CN217158419 U CN 217158419U
- Authority
- CN
- China
- Prior art keywords
- cylindrical battery
- pressure relief
- battery pack
- middle frame
- module
- 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
- 238000007789 sealing Methods 0.000 claims description 34
- 238000009434 installation Methods 0.000 abstract description 4
- 230000006837 decompression Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 239000002356 single layer Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
Abstract
The utility model discloses a cylinder battery package relates to power battery technical field. The cylindrical battery pack comprises a plurality of cylindrical battery modules, the plurality of cylindrical battery modules are arranged in parallel, and every two cylindrical battery modules form a module unit; in the module unit, be provided with the pressure release chamber between two cylinder battery module, two cylinder battery module are all through pressure release chamber pressure release. Through set up a plurality of cylinder battery module in parallel in the cylinder battery package, can satisfy the required battery capacity demand of the heavier motorcycle type of load. Every two cylinder battery modules form a module unit, and two cylinder battery modules in the module unit are decompressed through a decompression cavity, so that the occupied space of the cylinder battery pack on a vehicle is greatly reduced. The utility model provides a cylinder battery package can utilize the space furthest, in the limited power battery's of vehicle installation space, when taking into account the pressure release, can satisfy the large capacity demand of the heavier vehicle of load, has guaranteed the operation safety of vehicle.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a cylinder battery package.
Background
At present, a cylinder battery core in a cylinder battery module in a cylinder battery pack adopts a flat-laying grouping mode. To the heavier motorcycle type of load, required power battery's capacity is also great, and the cylinder battery module that sets up in the cylinder battery package is more, and every cylinder battery module all corresponds and is provided with pressure release structure for the pressure release of cylinder electricity core, consequently, the space that pressure release structure occupy is also great, but installs power battery's space in the vehicle limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cylinder battery package can enough satisfy the required battery capacity of the heavier motorcycle type of load, can furthest improve space utilization again when realizing the pressure release.
To achieve the purpose, the utility model adopts the following technical proposal:
a cylindrical battery pack comprising:
the cylindrical battery modules are arranged in parallel, and each two cylindrical battery modules form a module unit;
in the module unit, two be provided with the pressure release chamber between the cylinder battery module, two the cylinder battery module all passes through the pressure release chamber pressure release.
As an alternative of the cylindrical battery pack, a plurality of the cylindrical battery modules are arranged in the height direction of the cylindrical battery pack.
As an alternative of the cylindrical battery pack, the cylindrical battery module comprises a plurality of cylindrical battery cells connected in series and parallel, and sub-pressure release valves are arranged on the cylindrical battery cells; each sub-pressure release valve can be communicated with the pressure release cavity.
As an alternative of the cylindrical battery pack, a middle frame is further arranged in the module unit, the middle frame is arranged between the two cylindrical battery modules, and the pressure relief cavity is formed in the middle frame.
As an alternative of the cylindrical battery pack, the cylindrical battery module further comprises a tray, the cylindrical battery cells are fixedly arranged in the tray, a cavity is formed in the middle of the middle frame, the two trays in the module unit are respectively connected with the two sides of the cavity in the height direction, and the pressure relief cavity is formed between the two trays and the middle frame.
As an alternative of the cylindrical battery pack, the middle frame comprises two bearing grooves, the two bearing grooves are oppositely arranged on two sides of the middle frame, the pressure relief cavity is arranged between the two bearing grooves, and the cylindrical battery module is fixedly arranged in the bearing grooves.
As an alternative of the cylindrical battery pack, the middle frame comprises a pressure relief channel, the pressure relief channel is arranged in the circumferential direction of the middle frame, and the pressure relief channel is communicated with the pressure relief cavity.
As an alternative of the cylindrical battery pack, the middle frame further comprises a main pressure release valve, the main pressure release valve is arranged on the outer side of the middle frame, and the main pressure release valve is communicated with the pressure release channel.
As an alternative of the cylindrical battery pack, a plurality of pressure relief holes communicated with the pressure relief cavity are formed in the tray, and the plurality of pressure relief holes and the plurality of sub-pressure relief valves are arranged in a one-to-one correspondence mode.
As an alternative of the cylindrical battery pack, the tray includes a bearing portion and a connecting portion disposed in a circumferential direction of the bearing portion, the plurality of cylindrical battery cells are all fixedly disposed on the bearing portion, the connecting portion is connected with one side of the middle frame, and a sealing member is disposed between the connecting portion and the connecting surface of the middle frame.
As an alternative to a cylindrical battery pack, the carrier is at least partially located within the cavity.
As an alternative of the cylindrical battery pack, the cylindrical battery pack further comprises a sealing cover, and the sealing cover is covered on the cylindrical battery module and is hermetically connected with the middle frame.
As an alternative of the cylindrical battery pack, the pressure relief cavity is further arranged between two adjacent module units.
As an alternative of the cylindrical battery pack, the sub-pressure release valves in the two cylindrical battery modules on the two sides of the pressure release cavity are arranged in a staggered manner.
The utility model has the advantages that:
the utility model provides a cylinder battery package through set up a plurality of cylinder battery module side by side in cylinder battery package, can satisfy the required battery capacity demand of the heavier motorcycle type of load. Every two cylinder battery modules form a module unit, set up the pressure release chamber between two cylinder battery modules in the module unit, and two cylinder battery modules all set up a pressure release chamber through the pressure release chamber pressure release between the two for every cylinder battery module all corresponds, have reduced the occupation space of cylinder battery package on the vehicle greatly. The utility model provides a cylinder battery package can utilize the space furthest, in the limited power battery's of vehicle installation space, when taking into account the pressure release, can satisfy the large capacity demand of the heavier vehicle of load, has guaranteed the operation safety of vehicle.
Drawings
Fig. 1 is an exploded schematic view of a cylindrical battery pack according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a cylindrical battery pack according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a partially enlarged view at B in fig. 2.
In the figure:
1. a cylindrical battery module; 2. a middle frame; 3. a total pressure relief valve; 4. a seal member; 5. a closure cap; 6. a pressure relief cavity;
11. a tray; 12. a cylindrical cell; 21. fixing the step; 22. a pressure relief channel;
111. a pressure relief vent; 121. and the sub pressure release valves.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Due to different power requirements, the capacities of the cylindrical battery packs required by different vehicle models are different. Generally, the larger the capacity of the cylindrical battery pack, the larger the occupied space. A cylindrical battery pack with a single-layer structure is manufactured in a flat-laying grouping mode, a cylindrical battery cell with the diameter of 46mm is taken as an example, and the height of the cylindrical battery pack is about 120mm on a passenger car; on the passenger SUV, the height of the cylindrical battery pack is about 135 mm. For the vehicle types such as pickup trucks and logistics vehicles with heavier loads, the height of the single-layer tiled cylindrical battery pack is about 250-260 mm, and the defect of low height space utilization rate exists.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, the present embodiment provides a cylindrical battery pack, which includes a plurality of cylindrical battery modules 1, the plurality of cylindrical battery modules 1 are arranged in parallel, and every two cylindrical battery modules 1 form a module unit; in the module unit, be provided with pressure release chamber 6 between two cylinder battery module 1, the cylinder battery module 1 of pressure release chamber 6 both sides all is through pressure release chamber 6 pressure release.
Through set up a plurality of cylinder battery module 1 in parallel in the cylinder battery package, can satisfy the required battery capacity demand of the motorcycle type that the load is heavier. Every two cylinder battery module 1 form a module unit, set up pressure release chamber 6 between two cylinder battery module 1 in the module unit, and two cylinder battery module 1 all set up one for every cylinder battery module 1 all corresponds pressure release chamber 6 through the pressure release chamber 6 pressure release between the two, have reduced the occupation space of cylinder battery package on the vehicle greatly.
Exemplarily, set up a module unit in the cylinder battery package, two cylinder battery module 1 are first cylinder battery module and second cylinder battery module respectively, are provided with pressure release chamber 6 between first cylinder battery module and the second cylinder battery module, and first cylinder battery module and second cylinder battery module are through the pressure release of pressure release chamber 6 pressure release, when guaranteeing cylinder battery module 1 pressure release, have improved space utilization.
As an alternative to the cylindrical battery pack, a plurality of cylindrical battery modules 1 are arranged in the height direction of the cylindrical battery pack. With such an arrangement, the space utilization rate in the height direction can be improved.
Of course, in other embodiments, a plurality of cylindrical battery modules 1 may also be disposed along the length direction of the cylindrical battery pack, and the length direction here may be regarded as the transverse direction when the cylindrical battery pack is placed horizontally in this embodiment. The technical personnel in the field can be set according to the installation space of the cylindrical battery pack on the vehicle, so that the space utilization rate is improved to the maximum extent.
When the two cylindrical battery modules 1 are arranged along the height direction of the cylindrical battery pack, the first cylindrical battery module is arranged above the pressure relief cavity 6, and the pressure relief direction of the first cylindrical battery module faces downwards; the second cylinder battery module sets up in the below of pressure release chamber 6, and the pressure release direction of second cylinder battery module is up.
The cylinder battery package that this embodiment provided can furthest utilize the space, in the limited power battery's of vehicle installation space, when taking into account the pressure release, can satisfy the large capacity demand of the heavier vehicle of load, has guaranteed the operation safety of vehicle.
As shown in fig. 2 and fig. 3, as an alternative of the cylindrical battery pack, the cylindrical battery module 1 includes a plurality of cylindrical battery cells 12 connected in series and parallel, and the cylindrical battery cells 12 are provided with sub-pressure relief valves 121; each sub pressure relief valve 121 can communicate with the pressure relief chamber 6. When the pressure inside any one of the cylindrical battery cores 12 located on the two sides of the pressure release cavity 6 is too high, the corresponding sub pressure release valve 121 is opened, and the high-temperature gas in the cylindrical battery core 12 can be discharged into the pressure release cavity 6 through the sub pressure release valve 121.
The sub-pressure release valve 121 is disposed on an end surface of one end of the cylindrical battery cell 12 in the length direction, and when the internal pressure of the cylindrical battery cell 12 is too high and reaches the opening pressure of the sub-pressure release valve 121, the sub-pressure release valve 121 is automatically opened.
As an alternative of the cylindrical battery pack, the sub-pressure relief valves 121 in the two cylindrical battery modules 1 on the two sides of the pressure relief cavity 6 are arranged in a staggered manner. With the arrangement, when the sub-relief valve 121 on one side of the relief cavity 6 is relieved, the sub-relief valve 121 on the other side is prevented from being affected by the pressure relief impact force.
The utility model discloses in another optional embodiment, the module unit is provided with a plurality ofly, and when the both ends of cylinder electricity core 12 all were provided with sub-relief valve 121, still be provided with pressure relief chamber 6 between two adjacent module units. Make every cylindrical battery module 1's both ends all be provided with pressure release chamber 6, and two adjacent cylindrical battery modules 1 can let out the pressure through pressure release chamber 6 between the two, both guaranteed the equal pressure release in both ends of cylindrical battery module 1, saved direction of height's occupation space again.
As an alternative of the cylindrical battery pack, a middle frame 2 is further arranged in the module unit, the middle frame 2 is arranged between the two cylindrical battery modules 1, and a pressure relief cavity 6 is formed in the middle frame 2.
In this embodiment, the cylindrical battery module 1 further includes a tray 11, a plurality of cylindrical battery cells 12 are all fixedly arranged in the tray 11, the middle portion of the middle frame 2 is set as a cavity, two trays 11 in the module unit are respectively connected with the cavity along two sides of the height direction, and a pressure relief cavity 6 is formed between the two trays 11 and the middle frame 2.
As shown in fig. 2 and 4, as an alternative to the cylindrical battery pack, the middle frame 2 includes a pressure relief passage 22, the pressure relief passage 22 is disposed in the circumferential direction of the middle frame 2, and the pressure relief passage 22 is communicated with the pressure relief cavity 6. The sub-pressure release valve 121 of the cylindrical battery cell 12 with the overlarge internal pressure is opened, and high-temperature gas enters the pressure release cavity 6 through the sub-pressure release valve 121 and then enters the pressure release channel 22 from the pressure release cavity 6 for pressure release.
The first cylindrical battery module is positioned above the middle frame 2, and the tray 11 of the first cylindrical battery module is connected with the upper surface of the middle frame 2 in a matching way. The tray 11 of the second cylindrical battery module is connected with the lower surface of the middle frame 2 in a matching way. The middle frame 2 is a rectangular frame with a hollow structure, and a pressure relief cavity 6 is formed between the upper tray 11 and the lower tray 11 and the middle frame 2, so that the structure is simple and the cost is low; moreover, the whole tray 11 is arranged in the middle frame 2, so that the space utilization rate of the cylindrical battery pack is further improved.
As an alternative of the cylindrical battery pack, the middle frame 2 further includes a main pressure release valve 3, the main pressure release valve 3 is disposed outside the middle frame 2, and the main pressure release valve 3 is communicated with the pressure release channel 22. When the gas pressure in the pressure relief cavity 6 reaches the opening pressure of the main pressure relief valve 3, the main pressure relief valve 3 is automatically opened, and high-temperature gas is discharged into the air through the pressure relief channel 22, so that the balance of the gas pressure inside and outside the cylindrical battery pack is realized. Of the two ends in the length direction of the middle frame 2, a pressure relief channel 22 is provided inside the frame at one end, and two main pressure relief valves 3 are provided outside the end for pressure relief of the pressure relief chamber 6. Or, the pressure relief channels 22 are arranged in the frames at the two ends, and the outer side of each end is provided with a main pressure relief valve 3 for pressure relief of the pressure relief cavity 6.
As an alternative of the cylindrical battery pack, the tray 11 is provided with a plurality of pressure relief holes 111 communicated with the pressure relief cavity 6, and the plurality of pressure relief holes 111 and the plurality of sub-pressure relief valves 121 are arranged in one-to-one correspondence. When the high-temperature gas in the cylindrical battery cell 12 reaches the opening pressure of the sub-pressure release valve 121, the sub-pressure release valve 121 is automatically opened, and the high-temperature gas enters the pressure release cavity 6 through the pressure release hole 111 to be released.
As an alternative of the cylindrical battery pack, the tray 11 includes a bearing portion and a connecting portion disposed in the circumferential direction of the bearing portion, the plurality of cylindrical battery cells 12 are all fixedly disposed on the bearing portion, the connecting portion is connected with one side of the middle frame 2, and a sealing member 4 is disposed between the connecting surface of the connecting portion and the middle frame 2. The trays 11 of 2 both sides of middle frame all with middle frame 2 sealing connection for form middle seal chamber between the cylindrical battery module 1 of 2 both sides of middle frame and middle frame 2, middle seal chamber only carries out gas exchange through total relief valve 3 with the outside. The sealing performance of the joint of the tray 11 and the middle frame 2 is ensured by the sealing piece 4.
Be provided with first sealing member between the tray 11 of first cylinder battery module and the up end of middle frame 2, be provided with the second sealing member between the tray 11 of second cylinder battery module and the lower terminal surface of middle frame 2 to guarantee the leakproofness between the tray 11 of first cylinder battery module, the tray 11 of second cylinder battery module and middle frame 2.
In this embodiment, the carrying portion of the tray 11 is a lower groove, the plurality of cylindrical battery cells 12 are fixed to the lower groove by adhesive, and the connecting portion is an outer edge of an opening end of the lower groove. Of course, in other embodiments, the tray 11 may also be provided in a plate shape, and a plurality of lower grooves for carrying the cylindrical cells 12 are provided on the plate-shaped tray 11. A seal 4 is provided between the circumferential direction of the plate-shaped tray 11 and the connection surface of the intermediate frame 2.
As an alternative to a cylindrical battery pack, the carrier is at least partially located within the cavity. In this embodiment, the load-bearing part is completely located in the cavity, and the arrangement is smaller in height occupation space. Of course, in other embodiments, the bearing part may be partially located in the cavity, and a gasket is added between the connecting part and the connecting surface of the middle frame 2 to connect the connecting part and the middle frame 2.
As an alternative of the cylindrical battery pack, the cylindrical battery pack further includes a sealing cover 5, and the sealing cover 5 covers the cylindrical battery module 1 and is hermetically connected to the middle frame 2. The closing cap 5 is used for covering one end of the cylindrical battery module 1 far away from the tray 11, and integrally closes the cylindrical battery module 1 so as to protect the cylindrical battery module 1 from being damaged.
The one end that tray 11 was kept away from to cylinder battery module 1 is provided with integrated circuit board and module upper cover, and integrated circuit board is arranged in the mass flow with a plurality of cylinder electricity core 12 of cylinder battery module 1, and the module upper cover is used for protecting integrated circuit board.
The first cylindrical battery module upper cover is provided with a first sealing cover, and the second cylindrical battery module upper cover is provided with a second sealing cover. The outer edge of the first closing cover is matched with the upper end face of the middle frame 2, and the outer edge of the second closing cover is matched with the lower end face of the middle frame 2.
As an alternative to a cylindrical battery pack, the outer edge of the closure cap 5 and the outer edge of the tray 11 are fixedly connected to the same connection surface of the intermediate frame 2. Seal cover 5 and tray 11 are all connected with middle frame 2 sealing through sealing member 4, avoid intaking in the cylinder battery package, influence the performance of cylinder battery package.
The first sealing member that sets up at the up end of middle frame 2 and the second sealing member that sets up at the lower terminal surface of middle frame 2 are the annular sealing member with middle frame 2 looks adaptation, and first sealing member can cover whole up end, and the second sealing member can cover whole lower terminal surface. The outer edge of the tray 11 of the cylindrical battery module 1 is positioned on the inner side of the outer edge of the sealing cover 5, so that the first sealing element can realize the sealing connection between the first sealing cover and the middle frame 2 and can also realize the sealing connection between the first cylindrical battery module and the middle frame 2; the second sealing member can realize the sealing connection of the second sealing cover and the middle frame 2 and can realize the sealing connection of the second cylindrical battery module and the middle frame 2.
The first closed cover, the second closed cover, the tray 11 of the first cylindrical battery module and the tray 11 of the second cylindrical battery module are fixedly connected with the middle frame 2 through fastening screws.
Both sides face along the width direction of middle frame 2 all is provided with fixed step 21, and the interval all is equipped with a plurality of connecting holes on fixed step 21, and connecting bolt passes the connecting hole and is fixed in the vehicle with cylindrical battery package.
Example two:
the present embodiment provides a cylindrical battery pack having substantially the same structure as the cylindrical battery pack provided in the first embodiment, and the difference between the present embodiment and the first embodiment is that: the structure of the middle frame 2 and the structure of the cylindrical battery module 1 are different from those of the first embodiment.
The cylinder battery package that this embodiment provided includes middle frame 2, and middle frame 2 includes two bearing grooves, and two bearing grooves set up in middle frame 2's both sides relatively, are provided with pressure relief chamber 6 between two bearing grooves, and cylinder battery module 1 sets firmly in the bearing groove.
Bear cylindrical battery module 1 through middle frame 2, cylindrical battery module 1 need not to set up tray 11, and is in the same place a plurality of cylindrical electric cores 12 bundles, sets up in bearing the weight of the inslot. Two bearing grooves of middle frame 2 set up relatively, and the opening is located the relative both sides of middle frame 2 respectively, and two adjacent cylinder battery module 1 set up respectively in two bearing grooves to with the dislocation set of cylinder electricity core 12 in two bearing grooves, make sub-relief valve 121 dislocation. A plurality of pressure relief holes 111 are formed in the bearing groove, and the pressure relief holes 111 and the sub pressure relief valves 121 are arranged in a one-to-one correspondence manner. Then the cylindrical battery module 1 is covered by a sealing cover 5, and the sealing cover 5 is hermetically connected with the middle frame 2.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (14)
1. A cylindrical battery pack, comprising:
the battery pack comprises a plurality of cylindrical battery modules (1), wherein the cylindrical battery modules (1) are arranged in parallel, and each two cylindrical battery modules (1) form a module unit;
in the module unit, two be provided with pressure release chamber (6) between cylinder battery module (1), two cylinder battery module (1) all passes through pressure release chamber (6) pressure release.
2. The cylindrical battery pack according to claim 1, wherein a plurality of the cylindrical battery modules (1) are arranged in the height direction of the cylindrical battery pack.
3. The cylindrical battery pack according to claim 2, wherein the cylindrical battery module (1) comprises a plurality of cylindrical cells (12) connected in series and parallel, and the cylindrical cells (12) are provided with sub-pressure relief valves (121); each sub-pressure relief valve (121) can be communicated with the pressure relief cavity (6).
4. The cylindrical battery pack according to claim 3, wherein an intermediate frame (2) is further provided in the module unit, the intermediate frame (2) is provided between the two cylindrical battery modules (1), and the pressure relief cavity (6) is formed in the intermediate frame (2).
5. The cylindrical battery pack according to claim 4, wherein the cylindrical battery module (1) further comprises a tray (11), a plurality of cylindrical battery cells (12) are fixedly arranged in the tray (11), a cavity is arranged in the middle of the middle frame (2), two trays (11) in the module unit are respectively connected with two sides of the cavity along the height direction, and the pressure relief cavity (6) is formed between the two trays (11) and the middle frame (2).
6. The cylindrical battery pack according to claim 4, wherein the middle frame (2) comprises two bearing grooves, the two bearing grooves are oppositely arranged at two sides of the middle frame (2), the pressure relief cavity (6) is arranged between the two bearing grooves, and the cylindrical battery module (1) is fixedly arranged in the bearing grooves.
7. The cylindrical battery pack according to claim 5 or 6, wherein the middle frame (2) comprises a pressure relief channel (22), the pressure relief channel (22) is arranged in the circumferential direction of the middle frame (2), and the pressure relief channel (22) is communicated with the pressure relief cavity (6).
8. The cylindrical battery pack according to claim 7, wherein the middle frame (2) further comprises a total pressure relief valve (3), the total pressure relief valve (3) is disposed outside the middle frame (2), and the total pressure relief valve (3) is communicated with the pressure relief channel (22).
9. The cylindrical battery pack according to claim 5, wherein the tray (11) is provided with a plurality of pressure relief holes (111) communicated with the pressure relief cavity (6), and the plurality of pressure relief holes (111) and the plurality of sub-pressure relief valves (121) are arranged in a one-to-one correspondence manner.
10. The cylindrical battery pack according to claim 5, wherein the tray (11) comprises a bearing part and a connecting part arranged on the circumference of the bearing part, a plurality of cylindrical battery cells (12) are fixedly arranged on the bearing part, the connecting part is connected with one side of the middle frame (2), and a sealing element (4) is arranged between the connecting part and the connecting surface of the middle frame (2).
11. The cylindrical battery pack of claim 10, wherein the carrier is at least partially located within the cavity.
12. The cylindrical battery pack according to claim 4, further comprising a sealing cover (5), wherein the sealing cover (5) covers the cylindrical battery module (1) and is hermetically connected with the middle frame (2).
13. The cylindrical battery pack according to claim 3, wherein the pressure relief cavity (6) is further provided between two adjacent module units.
14. The cylindrical battery pack according to claim 3 or 13, wherein the sub-pressure relief valves (121) in the two cylindrical battery modules (1) on both sides of the pressure relief cavity (6) are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220244974.4U CN217158419U (en) | 2022-01-29 | 2022-01-29 | Cylindrical battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220244974.4U CN217158419U (en) | 2022-01-29 | 2022-01-29 | Cylindrical battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158419U true CN217158419U (en) | 2022-08-09 |
Family
ID=82689964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220244974.4U Active CN217158419U (en) | 2022-01-29 | 2022-01-29 | Cylindrical battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036703A1 (en) * | 2022-08-17 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
-
2022
- 2022-01-29 CN CN202220244974.4U patent/CN217158419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024036703A1 (en) * | 2022-08-17 | 2024-02-22 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110190212B (en) | Power battery package and vehicle | |
| US7951477B2 (en) | Battery module | |
| EP2092584B1 (en) | Battery module | |
| WO2020134070A1 (en) | Battery tray and power battery pack | |
| CN217158419U (en) | Cylindrical battery pack | |
| JP4218267B2 (en) | Battery | |
| CN215451589U (en) | Battery package and vehicle | |
| CN113394483A (en) | Battery pack, power battery system and electric vehicle | |
| JP4953527B2 (en) | battery | |
| CN215527801U (en) | Battery pack, power battery system and electric vehicle | |
| JP2018073551A (en) | Battery pack | |
| JP2023522474A (en) | Battery pack cases, battery packs and electric vehicles | |
| JP5147151B2 (en) | Control valve type lead acid battery | |
| CN113675510B (en) | End connection structure of battery cell, battery cell and power battery | |
| CN112751131B (en) | Novel battery box structure, battery pack and electric vehicle | |
| CN218896741U (en) | Shell of battery pack and battery pack thereof | |
| CN217239700U (en) | Battery cell and battery pack device comprising same | |
| CN113314794B (en) | Battery pack | |
| CN113782902B (en) | Battery pack and electric vehicle | |
| CN114243168A (en) | Loading device and transportation equipment | |
| CN217522157U (en) | Integrated battery box and battery pack | |
| CN219677486U (en) | Battery module and battery pack | |
| CN220368083U (en) | Battery device and electric vehicle | |
| CN219832768U (en) | Single battery and battery module | |
| CN218788472U (en) | Box and battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |