CN220065814U - Battery pack assembly and electricity utilization device - Google Patents
Battery pack assembly and electricity utilization device Download PDFInfo
- Publication number
- CN220065814U CN220065814U CN202321658056.7U CN202321658056U CN220065814U CN 220065814 U CN220065814 U CN 220065814U CN 202321658056 U CN202321658056 U CN 202321658056U CN 220065814 U CN220065814 U CN 220065814U
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- Prior art keywords
- plate
- battery pack
- pack assembly
- water cooling
- battery
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Links
- 230000005611 electricity Effects 0.000 title description 6
- 238000001816 cooling Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a battery pack assembly and an electric device, wherein the battery pack assembly comprises a water cooling plate, a supporting plate and an electric core, and a cooling flow passage is formed in the water cooling plate; the support plate is connected with the water cooling plate and is provided with a support surface suitable for supporting the battery cell, an exhaust channel is formed in the support plate, and an inlet of the exhaust channel is arranged on the support surface; the battery cell is supported on the supporting surface and contacted with the water cooling plate, and a first explosion-proof valve opposite to the inlet of the exhaust channel is formed on the battery cell. According to the battery pack assembly, the supporting plate supports the battery core and can convey gas exhausted by the battery core through the exhaust channel, the battery core is in contact with the water cooling plate, and the water cooling plate can cool the battery core to improve the safety performance of the battery pack assembly.
Description
Technical Field
The utility model relates to the field of batteries, in particular to a battery pack assembly and an electric device.
Background
The battery safety problem is an important factor influencing the development of new energy automobiles, and although a plurality of technical means are used at present to improve the safety of batteries, the battery safety is still a difficult point and an important point that most automobile enterprises need to solve or perfect.
Thermal runaway of a battery pack causes a series of safety problems, and the battery pack can delay the propagation speed of the thermal runaway by reducing temperature rise and pressure release, but the current technical means still have room for improvement.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a battery pack assembly. According to the battery pack assembly, the supporting plate supports the battery core and can convey gas exhausted by the battery core through the exhaust channel, the battery core is in contact with the water cooling plate, and the water cooling plate can cool the battery core to improve the safety performance of the battery pack assembly.
The utility model also provides an electric device with the battery pack assembly.
The battery pack assembly according to the present utility model includes: the water cooling plate is internally provided with a cooling flow passage; the support plate is connected with the water cooling plate and is provided with a support surface suitable for supporting the battery cell, an exhaust channel is formed in the support plate, and an inlet of the exhaust channel is arranged on the support surface; the battery cell is supported on the supporting surface and is contacted with the water cooling plate, and a first explosion-proof valve opposite to the inlet of the exhaust channel is formed on the battery cell.
According to the battery pack assembly, the supporting plate is connected with the water-cooling plate to fix the supporting plate, the battery cell is arranged on the supporting plate to enable the supporting plate to support the battery cell, and meanwhile, the battery cell can be cooled by contacting the battery cell with the water-cooling plate, so that the temperature rise of the battery cell is reduced. The first explosion-proof valve is formed on the battery cell, and the gas in the battery cell can be discharged after the first explosion-proof valve is opened, so that the pressure in the battery cell is reduced. An exhaust passage is formed in the support plate, the exhaust passage can convey gas, and an inlet of the exhaust passage is arranged on the support surface. Through just facing the inlet of first explosion-proof valve and exhaust passage, electric core exhaust gas is carried by exhaust passage, can make between high temperature gas and the electric core separate, realizes the thermoelectric separation to promote the security performance of battery package subassembly.
According to some embodiments of the utility model, the support plates are configured as a plurality of support plates spaced apart in the thickness direction, and the cells are disposed between two adjacent support plates.
According to some embodiments of the utility model, the support plate is provided with the exhaust passage inlet on at least one side in the thickness direction.
According to some embodiments of the utility model, the plurality of support plates comprises: a first end plate and a second end plate provided on both sides in a width direction of the water-cooled plate, respectively, the surfaces of the first end plate and the second end plate facing each other being formed with the exhaust passage inlet; and the partition plate is arranged on at least one side of the water cooling plate in the thickness direction and is positioned between the first end plate and the second end plate, and exhaust passage inlets are respectively formed on two sides of the partition plate in the thickness direction.
According to some embodiments of the utility model, the separator is configured as a plurality of spaced apart plates disposed between the first end plate and the second end plate.
According to some embodiments of the utility model, the first explosion-proof valve is formed towards the support plate on both sides of the cells facing away from each other in a first direction.
According to some embodiments of the utility model, the battery pack assembly further comprises: the transition plate is arranged at the end part of the water cooling plate and is respectively connected with the first end plate, the partition plate and the second end plate, and a converging channel communicated with the exhaust channel is formed in the transition plate.
According to some embodiments of the utility model, the battery pack assembly further comprises: the side beam is provided with a second explosion-proof valve, and the second explosion-proof valve is communicated with the converging channel.
According to some embodiments of the utility model, one end of the water cooling plate in the length direction is provided with an inlet and an outlet communicated with the cooling flow channel, and the transition plate is arranged at the other end of the water cooling plate in the length direction.
The power consumption device according to the present utility model is briefly described below.
The power utilization device according to the present utility model includes the battery pack assembly described in any one of the embodiments above. Since the electric device according to the present utility model includes the battery pack assembly according to any one of the embodiments described above, the electric device according to the present utility model has a low risk of thermal runaway of the battery pack assembly and a low rate of thermal runaway propagation, and can improve the use safety of the electric device, reduce the risk of occurrence of accidents, and reduce the loss caused by occurrence of accidents.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a schematic view of a battery pack assembly according to one embodiment of the present utility model;
fig. 2 is a schematic diagram of a combination of a support plate, a water-cooled plate and a transition plate according to one embodiment of the utility model.
Fig. 3 is an assembled view of a cell according to one embodiment of the utility model.
Reference numerals:
a battery pack assembly 1;
a water cooling plate 11;
a support plate 12, an exhaust passage 120, a first end plate 121, a second end plate 122, a partition 123;
a battery cell 13, a first explosion-proof valve 131;
a transition plate 14, a side rail 15, and a second explosion-proof valve 151.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the related art, thermal runaway of a battery pack causes a series of safety problems, and the battery pack can delay the spreading speed of the thermal runaway by reducing temperature rise and pressure release of exhaust, but the current technical means still have room for improvement.
A battery pack assembly 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 3.
As shown in fig. 1 and 2, a battery pack assembly 1 according to the present utility model includes a water cooling plate 11, a support plate 12, and a battery cell 13, the water cooling plate 11 having a cooling flow path formed therein; the support plate 12 is connected with the water cooling plate 11, the support plate 12 is provided with a support surface suitable for supporting the battery cells 13, an exhaust passage 120 is formed in the support plate 12, and an inlet of the exhaust passage 120 is arranged on the support surface; the battery cell 13 is supported on the supporting surface and is contacted with the water cooling plate 11, and a first explosion-proof valve 131 opposite to the inlet of the exhaust passage is formed on the battery cell 13.
According to the battery pack assembly 1 disclosed by the utility model, the supporting plate 12 is connected with the water-cooling plate 11 to fix the supporting plate 12, the battery cells 13 are arranged on the supporting plate 12, so that the supporting plate 12 supports the battery cells 13, and meanwhile, the battery cells 13 can be cooled by contacting the battery cells 13 with the water-cooling plate 11, so that the temperature rise of the battery cells 13 is reduced. The first explosion-proof valve 131 is formed on the battery cell 13, and the first explosion-proof valve 131 is opened to discharge gas in the battery cell 13, so that the pressure in the battery cell 13 is reduced. An exhaust passage 120 is formed in the support plate 12, the exhaust passage 120 can convey gas, and an inlet of the exhaust passage 120 is disposed on the support surface. By facing the first explosion-proof valve 131 to the inlet of the exhaust channel 120, the gas exhausted by the battery cell 13 is conveyed by the exhaust channel 120, so that the high-temperature gas and the battery cell 13 can be separated, the thermoelectric separation is realized, and the safety performance of the battery pack assembly 1 is improved.
Therefore, in the battery pack assembly 1 of the utility model, the supporting plate 12 supports the battery cells 13 and can convey the gas exhausted by the battery cells 13 through the exhaust channel 120, the battery cells 13 are in contact with the water cooling plate 11, and the water cooling plate 11 can cool the battery cells 13, so that the safety performance of the battery pack assembly 1 is improved.
According to some embodiments of the present utility model, as shown in fig. 1 to 3, the support plates 12 are configured as a plurality of support plates spaced apart in the thickness direction, and the battery cells 13 are disposed between two adjacent support plates 12. By configuring the support plates 12 to be provided in plural at intervals in the thickness direction, the number of the support plates 12 may be two or more, and a cavity suitable for accommodating the battery cells 13 may be defined between the adjacent two support plates 12, thereby facilitating the provision of the battery cells 13. In the case that the support plates 12 are more, the plurality of support plates 12 may define a plurality of cavities suitable for accommodating the electric cores 13, and one cavity may be provided with one electric core 13, so that the arrangement of the electric cores 13 in the thickness direction of the support plates 12 can be realized, and each electric core 13 can be in contact with the same water-cooled plate 11, so that heat dissipation of the electric core 13 is facilitated.
According to some embodiments of the present utility model, the support plate 12 is provided with an exhaust passage inlet on at least one side in the thickness direction. Since the battery cell 13 may be disposed between two adjacent support plates 12, the battery cell 13 may be formed with the first explosion-proof valves 131 at both sides in the thickness direction, and the two first explosion-proof valves 131 exhaust gas to both sides of the battery cell 13 in the thickness direction, respectively, to increase the exhaust efficiency. Correspondingly, the support plate 12 may be provided with an exhaust passage inlet on one side in the thickness direction, an exhaust passage inlet on the other side in the thickness direction, and an exhaust passage inlet on both sides in the thickness direction, and the exhaust passage inlet is disposed in relation to the positional relationship between the support plate 12 and the battery cell 13. For example, the plurality of cells 13 are arranged in the thickness direction of the support plate 12, one support plate 12 is located between the two cells 13, two sides of the support plate 12 in the thickness direction are respectively formed with exhaust passage inlets, the two cells 13 can exhaust toward the support plate 12, and the two exhaust passage inlets can respectively allow the gas exhausted from the two cells 13 to flow into the exhaust passage 120, so that the gas is converged, and the gas is conveniently exhausted out of the battery pack assembly 1 together.
According to some embodiments of the present utility model, as shown in fig. 2 and 3, the plurality of support plates 12 includes a first end plate 121, a second end plate 122, and a partition plate 123, the first end plate 121 and the second end plate 122 being disposed on both sides in the width direction of the water-cooled plate 11, respectively, the surfaces of the first end plate 121 and the second end plate 122 facing each other being formed with exhaust passage inlets; the partition plate 123 is provided between the first end plate 121 and the second end plate 122 on at least one side of the water-cooling plate 11 in the thickness direction, and exhaust passage inlets are formed on both sides of the partition plate 123 in the thickness direction, respectively. The first end plate 121 and the partition 123 define a cavity therebetween adapted to receive the battery cell 13, and the second end plate 122 and the partition 123 define a cavity therebetween adapted to receive the battery cell 13. The separator 123 is located between the two cells 13, and exhaust passage inlets are formed on both sides of the separator 123 in the thickness direction, respectively, so that gas discharged from the two cells 13 toward each other can flow into the exhaust passage 120 of the separator 123. The surfaces of the first end plate 121 and the second end plate 122 facing each other are in contact with different electric cells 13, and the gas exhausted by the two electric cells 13 deviating from each other can flow into the exhaust channel 120 of the first end plate 121 and the exhaust channel 120 of the second end plate 122 respectively, so that the gas is conveyed by a plurality of exhaust channels 120 at the same time, and the exhaust efficiency is accelerated.
According to some embodiments of the present utility model, the separator 123 is configured as a plurality of spaced-apart plates disposed between the first end plate 121 and the second end plate 122. The number of the partition plates 123 may be two or more. The plurality of spacers 123 may be spaced apart from each other such that at least one cavity adapted to receive the battery cells 13 is defined between the plurality of spacers 123, that is, at least three cavities adapted to receive the battery cells 13 may be defined between the first end plate 121, the second end plate 122, and the plurality of spacers 123, and it may be achieved that at least three battery cells 13 are arranged in the thickness direction of the support plate 12. In addition, a plurality of cells 13 may be disposed in one cavity, that is, the plurality of cells 13 may be arranged in the length direction and the thickness direction of the support plate 12, respectively.
According to some embodiments of the utility model, the cells 13 are formed with first explosion-proof valves 131 facing the support plate on both sides facing away from each other in the first direction, respectively. The first direction is the length, width or thickness direction of the cells 13, and the first direction is also the thickness direction of the support plate 12. The battery cell 13 may be disposed between the first end plate 121 and the separator 123, between the second end plate 122 and the separator 123, or between the two separators 123. By forming the first explosion-proof valves 131 on two sides of the battery cell 13 in the first direction respectively, the two first explosion-proof valves 131 can be opened simultaneously to discharge gas inside the battery cell 13, so that the exhaust efficiency is improved, and two side surfaces of the battery cell 13 in the first direction are opposite to the two support plates 12 respectively, so that the gas discharged through any one of the first explosion-proof valves 131 can flow into the exhaust channel 120, and the gas is discharged more reliably.
According to some embodiments of the present utility model, as shown in fig. 1 to 3, the battery pack assembly 1 further includes a transition plate 14, the transition plate 14 is disposed at an end of the water cooling plate 11 and the transition plate 14 is connected to the first end plate 121, the partition 123 and the second end plate 122, respectively, and a confluence passage communicating with the exhaust passage 120 is formed in the transition plate 14. The gas in the exhaust channel 120 flows towards the direction of the transition plate 14, any one of the support plates 12 is connected with the transition plate 14, and the exhaust channel 120 in the support plate 12 is communicated with the converging channel, so that the gas in the exhaust channel 120 flows into the converging channel, the converging of the gas in a plurality of exhaust channels 120 is realized, and the gas can be conveniently discharged out of the battery pack assembly 1 together.
According to some embodiments of the present utility model, as shown in fig. 1, the battery pack assembly 1 further includes a side rail 15, and a second explosion-proof valve 151 is formed on the side rail 15, and the second explosion-proof valve 151 communicates with the confluence passage. Through setting up the second explosion-proof valve 151 on boundary beam 15, the gas in the converging channel can flow into inside the boundary beam 15, and the inside pressure increase of boundary beam 15 can make the second explosion-proof valve 151 open in order to make the gas discharge in the battery package subassembly 1, reduces the inside pressure of battery package subassembly 1, reduces the spread speed of thermal runaway.
According to some embodiments of the present utility model, one end of the water cooling plate 11 in the length direction is provided with an inlet and an outlet communicating with the cooling flow passage, and the transition plate 14 is provided at the other end of the water cooling plate 11 in the length direction. The external cooling line may be connected to the inlet and the outlet of the cooling flow passage from one end of the water cooling plate 11 in the longitudinal direction, respectively. By providing the transition plate 14 at the other end in the longitudinal direction of the water-cooling plate 11, that is, providing the edge beam 15 at the other end in the longitudinal direction of the water-cooling plate 11, the gas in the confluence passage is discharged from the other end of the water-cooling plate 11, interference between the exhaust gas and the flow of the cooling medium is reduced, and reliability is improved.
The power consumption device according to the present utility model is briefly described below.
The electricity consumption device according to the present utility model includes the battery pack assembly 1 of any one of the above embodiments. Since the electricity using device according to the present utility model includes the battery pack assembly 1 of any one of the above embodiments, the electricity using device according to the present utility model has a low risk of thermal runaway of the battery pack assembly 1 and a low rate of thermal runaway spreading, and can improve the use safety of the electricity using device, reduce the risk of occurrence of accidents, and reduce the loss caused by occurrence of accidents.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.
In the description of the present utility model, "plurality" means two or more.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A battery pack assembly, comprising:
the water cooling plate is internally provided with a cooling flow passage;
the support plate is connected with the water cooling plate and is provided with a support surface suitable for supporting the battery cell, an exhaust channel is formed in the support plate, and an inlet of the exhaust channel is arranged on the support surface;
the battery cell is supported on the supporting surface and is contacted with the water cooling plate, and a first explosion-proof valve opposite to the inlet of the exhaust channel is formed on the battery cell.
2. The battery pack assembly of claim 1, wherein the support plates are configured as a plurality of support plates spaced apart in a thickness direction, and the cells are disposed between adjacent two of the support plates.
3. The battery pack assembly according to claim 2, wherein the support plate is provided with the exhaust passage inlet on at least one side in a thickness direction.
4. The battery pack assembly of claim 3, wherein a plurality of the support plates comprise:
a first end plate and a second end plate provided on both sides in a width direction of the water-cooled plate, respectively, the surfaces of the first end plate and the second end plate facing each other being formed with the exhaust passage inlet;
and the partition plate is arranged on at least one side of the water cooling plate in the thickness direction and is positioned between the first end plate and the second end plate, and exhaust passage inlets are respectively formed on two sides of the partition plate in the thickness direction.
5. The battery pack assembly of claim 4, wherein the separator is configured as a plurality of spaced apart plates disposed between the first end plate and the second end plate.
6. The battery pack assembly of claim 4, wherein the cells are formed with the first explosion-proof valve facing toward the support plate on both sides facing away from each other in a first direction, respectively.
7. The battery pack assembly of claim 6, further comprising: the transition plate is arranged at the end part of the water cooling plate and is respectively connected with the first end plate, the partition plate and the second end plate, and a converging channel communicated with the exhaust channel is formed in the transition plate.
8. The battery pack assembly of claim 7, further comprising: the side beam is provided with a second explosion-proof valve, and the second explosion-proof valve is communicated with the converging channel.
9. The battery pack assembly according to claim 7, wherein one end of the water cooling plate in the length direction is provided with an inlet and an outlet communicating with the cooling flow passage, and the transition plate is provided at the other end of the water cooling plate in the length direction.
10. An electrical device comprising the battery pack assembly of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658056.7U CN220065814U (en) | 2023-06-27 | 2023-06-27 | Battery pack assembly and electricity utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658056.7U CN220065814U (en) | 2023-06-27 | 2023-06-27 | Battery pack assembly and electricity utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220065814U true CN220065814U (en) | 2023-11-21 |
Family
ID=88758754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321658056.7U Active CN220065814U (en) | 2023-06-27 | 2023-06-27 | Battery pack assembly and electricity utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220065814U (en) |
-
2023
- 2023-06-27 CN CN202321658056.7U patent/CN220065814U/en active Active
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