CN212161954U - Battery module with explosion hole on end plate and battery pack - Google Patents
Battery module with explosion hole on end plate and battery pack Download PDFInfo
- Publication number
- CN212161954U CN212161954U CN202021268347.1U CN202021268347U CN212161954U CN 212161954 U CN212161954 U CN 212161954U CN 202021268347 U CN202021268347 U CN 202021268347U CN 212161954 U CN212161954 U CN 212161954U
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- battery
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- end plate
- battery module
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- 238000004880 explosion Methods 0.000 title claims abstract description 40
- 238000002955 isolation Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 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
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Abstract
The utility model discloses an end plate is equipped with battery module and battery package of exploding the trompil. The battery module comprises a module frame and a plurality of batteries arranged in the module frame. The module frame consists of a bottom plate, a cover plate, two side plates and two end plates; the two end plates are respectively a front end plate and a rear end plate; the batteries are in a long strip body and are arranged in the module frame in the direction of the central line between the two end plates, so that the two ends of the battery long strip body respectively face the two end plates; an anti-explosion valve is arranged on the end face of one end of the battery; the rear end plate is provided with a plurality of explosion holes; the end face of each battery provided with the explosion-proof valve is tightly attached to the rear end plate, and the explosion-proof valve of each battery is respectively opposite to the explosion hole on the rear end plate. The utility model discloses set up the explosion-proof valve in the battery side to correspond to the trompil of exploding on the end plate, thereby make the battery heat to battery package side direction release, and then can release to the electric automobile vehicle bottom under the guide of battery package, thereby avoid the not enough problem of battery top release heat space.
Description
Technical Field
The utility model relates to a power battery's battery module.
Background
In an electric automobile, a battery energy storage module provides electric energy, and an electric motor converts the electric energy into kinetic energy of automobile running. Therefore, in the field of electric vehicles, battery energy storage modules are key technologies. In the field of electric battery energy storage, batteries are the smallest energy storage units. The cells are generally square. The battery modules are formed by the plurality of batteries, then the battery modules form the module group, and finally the battery energy storage module is formed by the plurality of module groups. Each battery of the battery module is placed in the module frame. The module frame is generally composed of a bottom plate, a cover plate, two side plates, and two end plates.
In the prior art, the battery is easy to generate a thermal runaway state in the use process. In the thermal runaway state of the battery, unless the stored energy of the battery is consumed, the temperature of the battery cannot be lowered, and in a severe case, the battery can be subjected to fire explosion. In an electric vehicle, battery explosion will cause a serious safety accident. And the thermal runaway state of the battery during the use process is difficult to avoid. In order to avoid safety accidents caused by battery explosion, a common scheme in the prior art is to add an explosion-proof valve on the battery. After the explosion-proof valve is arranged on the battery, when the battery is in a thermal runaway state, the internal pressure of the battery is too high, and the battery can be released through explosion of the explosion-proof valve, so that the explosion of the battery is avoided. For example, in a battery module disclosed in patent document CN 110277533 a, a battery is provided with an explosion-proof valve on an end face of a tip end, and a second explosion-proof valve is provided on a top cover of the battery module. The technical scheme has the following defects: firstly, because the battery electrode is also positioned on the end face of the top end of the battery, after the explosion-proof valve of the battery is exploded, the electrical components connected with the battery electrode are influenced, for example, the failure of the acquisition board can be caused, so that the failure of the overall management and control of the battery module can be caused; secondly, the battery is usually placed on a bottom plate of the electric automobile, a space above the battery is lacked for thermal release after the explosion-proof valve of the battery explodes, and the space reserved above the battery for explosion-proof valve explosion inevitably requires to reduce the battery, so that the overall energy density of the battery energy storage module is reduced.
Disclosure of Invention
The utility model discloses the problem that will solve: the end face of the top end of the battery in the prior art is provided with the explosion-proof valve.
In order to solve the above problem, the utility model discloses a scheme as follows:
the battery module with the explosion holes on the end plate comprises a module frame and a plurality of batteries arranged in the module frame; the module frame consists of a bottom plate, a cover plate, two side plates and two end plates; the two end plates are respectively a front end plate and a rear end plate; the batteries are long bodies and are arranged in the module frame in the direction of a central line between the two end plates, so that two ends of each long body of the battery face the two end plates respectively; an anti-explosion valve is arranged on the end face of one end of the battery; the rear end plate is provided with a plurality of explosion holes; the end face of each battery, which is provided with the explosion-proof valve, is tightly attached to the rear end plate, and the explosion-proof valves of the batteries are respectively and rightly opposite to the explosion holes in the rear end plate.
Furthermore, according to the utility model, the end plate is provided with a battery module with an explosion hole, and the electrode of the battery is arranged on the end surface opposite to the explosion-proof valve; the end face of the battery provided with the electrode is opposite to the front end plate.
Furthermore, according to the utility model, the end plate is provided with a battery module with an explosion hole, and a wiring harness isolation plate, a connecting sheet, an insulation plate and a pole ear are arranged between the front end plate and the end face of the battery provided with the electrode; the insulating plate is arranged on the inner side of the front end plate and is tightly attached to the inner side surface of the front end plate; the wiring harness isolation plate is arranged between the end face of the battery and the insulation plate; the connecting sheet is arranged on the wiring harness isolation plate, is connected with the electrodes of the batteries and is used for connecting all the batteries in the battery module into a whole; one end of the lug is connected with the electrode formed by connecting the batteries in the battery module into a whole.
Further, according to the utility model discloses an end plate is equipped with the battery module of exploding the trompil, the connection piece be used for with each battery in the battery module is established ties.
Further, according to the utility model discloses an end plate is equipped with the battery module of exploding the trompil, the connection piece be used for with each battery in the battery module is parallelly connected.
Furthermore, the end plate according to the utility model is provided with a battery module with an explosion hole, and also comprises a collecting plate; the collecting plate is arranged on the wire harness isolation plate and is positioned between the insulating plate and the wire harness isolation plate; and the acquisition board is provided with a sensor for acquiring the voltage and the temperature of the battery.
Furthermore, the end plate according to the utility model is provided with a battery module with an explosion hole, and also comprises a tab support piece; the lug support piece and the insulating plate are integrally manufactured by insulating materials; and after the pole lug penetrates through the insulating plate, the other end of the pole lug is arranged on the pole lug supporting piece.
Furthermore, according to the utility model, the end plate is provided with a battery module with an explosion hole, and the front end plate is provided with a tab supporting groove; the tab support member is disposed in the tab support groove.
Further, according to the utility model discloses an end plate is equipped with the battery module of exploding the trompil, be provided with the heat insulating board between the battery.
The battery pack comprises a battery module, wherein the end plate arranged in a battery pack box body is provided with an explosion hole; the battery modules are arranged in two rows in the battery pack box body; two liang of relative settings of battery module among two lines of battery module for each battery module the back end plate is towards the outside, the front end plate is towards the inboard.
The technical effects of the utility model are as follows:
1. the anti-explosion valve is arranged at the side end of the battery and corresponds to the explosion hole in the end plate, so that the heat of the battery is released to the side of the battery pack, and then the heat is released to the bottom of the electric automobile under the guidance of the battery pack, and the problem that the heat space released above the battery is insufficient is solved.
2. The battery electrode and the explosion-proof valve are arranged oppositely, so that the collection plate and the low-voltage circuit are prevented from being damaged by released heat after the battery thermal runaway explosion-proof valve is exploded.
Drawings
Fig. 1 is a schematic view of the overall structure of the battery module according to the embodiment of the present invention.
Fig. 2 is a schematic diagram of a rear view angle of a battery in an embodiment of the battery module of the present invention.
Fig. 3 is an exploded view of an embodiment of the battery module in fig. 1.
Fig. 4 is an enlarged exploded view of the components between the front end face and the front end plate of the battery of the embodiment of the battery module in fig. 3.
Fig. 5 is a schematic view of the overall structure of the embodiment of the battery pack of the present invention.
Wherein,
1 is a rear end plate, 11 is a blast hole,
2 is a front end plate, 201 is a tab supporting groove,
21 is an insulating plate, 211 is a tab support,
22 is a collecting plate, 23 is a wiring harness isolation plate, 241 is a pole lug, 242 is a connecting plate,
3 is a boarding plate frame,
4 is a battery, 41 is an explosion-proof valve, 42 is a battery electrode, 43 is a heat-insulating plate,
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, 2, 3, and 4, a battery module having an end plate provided with an explosion hole includes a module frame and a plurality of batteries 4 disposed in the module frame. The module frame is composed of a coaming plate frame 3 and two end plates. The two end plates are respectively a front end plate 2 and a rear end plate 1. The rear end plate 1 is provided with a plurality of blast holes 11. The number of the explosion holes 11 is the same as the number of the batteries 4, and corresponds to one. The coaming plate frame 3 is formed by welding a bottom plate, a cover plate and two side plates. The module frame with the containing cavity is formed between the boarding plate frame 3 and the two end plates through welding. The battery 4 is disposed in the receiving cavity of the module frame. The battery 4 is a long strip body, and the end faces of the two ends are respectively a front end face and a rear end face. The front end face and the rear end face of the battery 4 are two opposite end faces. The battery 4 is provided with a battery electrode 42 on the front end face and an explosion-proof valve 41 on the rear end face, that is, the end face provided with the battery electrode 42 and the end face provided with the explosion-proof valve 41 are two opposite end faces. The batteries 4 are arranged in the module frame in the direction of the center line between the two end plates, so that both ends of the elongated body of the batteries 4 face the two end plates, respectively, specifically, the rear end face of the battery 4 faces the rear end plate 1, and the front end face faces the front end plate 2. The rear end faces of the cells 4 are closely attached to the inner side of the rear end plate 1, and the explosion-proof valves 41 of the respective cells 4 face the explosion holes 11 in the rear end plate 1. The batteries 4 are separated from each other by the heat-insulating plate 43, or the batteries 4 are sandwiched between the two heat-insulating plates 43.
An electrical component is provided between the front end face of the battery 4 and the front end plate 2. The electrical component includes an insulation plate 21, a tab support 211, a collection plate 22, a harness isolation plate 23, and a connector. Wherein, the connecting piece comprises a tab 241 and a connecting piece 242. The tab support 211 is integrally connected to the connection insulation plate 21 and is disposed in the tab support groove 201 at a corresponding position on the front end plate 2. Specifically, the tab support 211 is integrally formed with the insulating plate 21 by an insulating material, the insulating plate 21 is closely attached to the inside of the front end plate 2, and the tab support 211 is disposed in the tab support groove 201 of the front end plate 2.
The harness isolation plate 23 is closely attached to the front end surface of the battery 4. The harness isolation plate 23 is provided with electrode holes corresponding to the battery electrodes 42 through which the battery electrodes 42 pass. The connecting piece 242 is provided on the wire harness separator 23 between the insulating plate 21 and the wire harness separator 23. The connection tab 242 connects the battery electrodes 42 after passing through the electrode holes for connecting the batteries 4 in series in the battery module. The connection tabs 242 are typically welded to the cell electrodes 42. One end of the tab 241 is connected to the battery electrode 42 formed by serially connecting the batteries in the battery module, and the other end of the tab is disposed on the tab support 211 after passing through the corresponding tab hole of the insulating plate 21. The two tabs 241 are respectively a positive electrode and a negative electrode of the battery module output. The collection plate 22 is disposed on the harness isolation plate 23 between the insulation plate 21 and the harness isolation plate 23. The collecting plate 22 is provided with sensors for collecting the voltage and temperature of the battery 4.
Note that, in this embodiment, the connecting tab 242 connects the batteries 4 in series in the battery module. Those skilled in the art will appreciate that the batteries in the battery module may also be connected in parallel. In this case, the connecting pieces 242 connect the batteries 4 in the battery module in parallel, and the two tabs 241 connect the battery electrodes connected in parallel. The connection of the batteries is that the batteries are connected in series or in parallel.
Fig. 5 is a schematic structural diagram of an embodiment of the battery pack of the present invention. 900 is a battery pack, and 901 is the battery module with the explosion holes on the end plate. The battery modules 901 are disposed in the battery pack case of the battery pack 900 and arranged in two rows. The battery modules 901 of the two rows of battery modules 901 are arranged opposite to each other. That is, the front end plates 2 of the battery modules having the explosion holes formed in the two end plates are disposed opposite to each other, and the front end plates 2 face the inside of the battery pack 900, and correspondingly, the rear end plates 1 face the outside of the battery pack 900. At this time, when the explosion-proof valve 41 on the battery 4 bursts in the thermal runaway state of the battery 4, heat is released to the outside of the battery pack in the direction indicated by the arrow in fig. 5 through the burst hole 11 of the rear end plate 1. Under the scheme, on one hand, the heat released after the explosion-proof valve is exploded can be prevented from damaging the electric components on the inner side of the battery pack 900; on the other hand, when the battery pack 900 is applied to an electric vehicle, the heat generated by the explosion-proof valve 41 on the battery 4 can be guided to the bottom of the electric vehicle through the release port at the edge of the bottom plate of the battery pack case of the battery pack 900.
Claims (10)
1. A battery module with an explosion hole on an end plate comprises a module frame and a plurality of batteries arranged in the module frame; the module frame consists of a bottom plate, a cover plate, two side plates and two end plates; the device is characterized in that the two end plates are respectively a front end plate and a rear end plate; the batteries are long bodies and are arranged in the module frame in the direction of a central line between the two end plates, so that two ends of each long body of the battery face the two end plates respectively; an anti-explosion valve is arranged on the end face of one end of the battery; the rear end plate is provided with a plurality of explosion holes; the end face of each battery, which is provided with the explosion-proof valve, is tightly attached to the rear end plate, and the explosion-proof valves of the batteries are respectively and rightly opposite to the explosion holes in the rear end plate.
2. The battery module with the end plate provided with the explosion-proof hole as claimed in claim 1, wherein the electrode of the battery is arranged on the opposite end face of the explosion-proof valve; the end face of the battery provided with the electrode is opposite to the front end plate.
3. The battery module with the end plate provided with the explosion hole according to claim 2, wherein a wiring harness isolation plate, a connecting sheet, an insulation plate and a tab are arranged between the front end plate and the end face of the battery provided with the electrode; the insulating plate is arranged on the inner side of the front end plate and is tightly attached to the inner side surface of the front end plate; the wiring harness isolation plate is arranged between the end face of the battery and the insulation plate; the connecting sheet is arranged on the wiring harness isolation plate, is connected with the electrodes of the batteries and is used for connecting all the batteries in the battery module into a whole; one end of the lug is connected with the electrode formed by connecting the batteries in the battery module into a whole.
4. The battery module having the end plate provided with the explosion vent according to claim 3, wherein the connecting tabs are used to connect the cells in the battery module in series.
5. The battery module having the end plate provided with the explosion vent according to claim 3, wherein the connecting tabs are used to connect the cells in the battery module in parallel.
6. The battery module with the end plate provided with the explosion vent according to claim 3, further comprising a collecting plate; the collecting plate is arranged on the wire harness isolation plate and is positioned between the insulating plate and the wire harness isolation plate; and the acquisition board is provided with a sensor for acquiring the voltage and the temperature of the battery.
7. The battery module with the end plate provided with the explosion vent according to claim 3, further comprising a tab support; the lug support piece and the insulating plate are integrally manufactured by insulating materials; and after the pole lug penetrates through the insulating plate, the other end of the pole lug is arranged on the pole lug supporting piece.
8. The battery module with the explosion vent in the end plate according to claim 7, wherein the front end plate is provided with a tab supporting groove; the tab support member is disposed in the tab support groove.
9. The battery module with the end plate provided with the explosion vents as set forth in any one of claims 1 to 8, wherein a heat insulating plate is disposed between the batteries.
10. The battery pack is characterized by comprising a plurality of battery modules, wherein the battery modules are arranged in a battery pack box body, and the end plates of any one of claims 1 to 8 are provided with explosion holes; the battery modules are arranged in two rows in the battery pack box body; two liang of relative settings of battery module among two lines of battery module for each battery module the back end plate is towards the outside, the front end plate is towards the inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268347.1U CN212161954U (en) | 2020-07-02 | 2020-07-02 | Battery module with explosion hole on end plate and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268347.1U CN212161954U (en) | 2020-07-02 | 2020-07-02 | Battery module with explosion hole on end plate and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212161954U true CN212161954U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021268347.1U Active CN212161954U (en) | 2020-07-02 | 2020-07-02 | Battery module with explosion hole on end plate and battery pack |
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| Country | Link |
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| CN (1) | CN212161954U (en) |
Cited By (1)
| 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 |
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2020
- 2020-07-02 CN CN202021268347.1U patent/CN212161954U/en active Active
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220121 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: No.15, Huashang Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Jiangsu Tafel Power System Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |
|
| CP03 | Change of name, title or address |