CN219801120U - Battery tray and battery pack - Google Patents
Battery tray and battery pack Download PDFInfo
- Publication number
- CN219801120U CN219801120U CN202320377272.8U CN202320377272U CN219801120U CN 219801120 U CN219801120 U CN 219801120U CN 202320377272 U CN202320377272 U CN 202320377272U CN 219801120 U CN219801120 U CN 219801120U
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- Prior art keywords
- battery
- groove
- bottom plate
- pressure relief
- pressure
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- 238000001816 cooling Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 5
- 230000003313 weakening effect Effects 0.000 abstract description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to a battery tray, which comprises a bottom plate for bearing a battery, wherein a plurality of mounting grooves are formed in the bottom plate at intervals, one end of the battery with a pressure relief valve is spliced with the mounting grooves, the bottom of each mounting groove is concavely provided with a pressure relief groove, the pressure relief grooves are used for accommodating discharged materials during pressure relief of the battery, and orthographic projection of the pressure relief valve on the bottom plate is positioned in the pressure relief grooves. The bottom plate is provided with the mounting groove for mounting the battery, and the bottom of the mounting groove is provided with the pressure relief groove for accommodating the discharged materials. When the pressure release occurs in the battery, the pressure in the pressure release groove is rapidly increased to jack up the battery, so that the discharged matters in the battery can be rapidly discharged into the pressure release groove and the space around the pressure release groove, and the pressure release efficiency of the battery is further ensured. Meanwhile, as the holes are not formed in the bottom plate, the weakening of the structural strength of the bottom plate caused by the holes can be avoided, and the overall structural strength of the battery tray is further improved.
Description
Technical Field
The utility model relates to the technical field of battery manufacturing, in particular to a battery tray and a battery pack comprising the battery tray.
Background
With the rapid development of new energy power, a power battery has become a main direction of development of electric automobiles. The power battery mainly supplies power to the outside in a battery pack mode, and the battery pack mainly comprises a box body and a battery module which is arranged in the box body in a sealing mode. Referring to fig. 1, a conventional battery module includes a battery tray 1' and a plurality of batteries 3' disposed on the battery tray 1 '. The battery tray 1 'is installed in the case, and a pressure release passage is formed by providing a bracket 2' to space the battery tray 1 'from a bottom plate 4' of the case. The battery tray 1' is provided with a pressure relief hole, and the battery 3' is fixed on the battery tray 1' through structural adhesive and the pressure relief valve 31' at the bottom of the battery 3' is opposite to the pressure relief hole. When the battery 3 'breaks down and pressure is released, the pressure release valve 31' is opened, and the discharged matters such as gas, electrolyte and the like in the battery 3 'enter the pressure release channel through the pressure release hole, so that the pressure release protection of the battery 3' is realized.
The prior art has the following defects: the size of the pressure relief hole influences the pressure relief efficiency and the self strength of the battery tray 1', when the pressure relief hole is smaller, the pressure relief hole is easy to be blocked after the pressure relief valve 31' is separated from the battery 3', and the pressure relief failure of the battery 3' is caused by lower removal efficiency of the removal object; when the pressure relief hole is bigger, though the pressure relief effect can be ensured, the structural strength of the battery tray 1' is weakened, and the normal operation of the battery pack is not facilitated.
Disclosure of Invention
The utility model aims to provide a battery tray and a battery pack, which have high pressure release efficiency and high structural strength.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a battery tray, including the bottom plate that is used for bearing the weight of the battery, the interval is provided with a plurality of mounting grooves on the bottom plate, the battery have the one end of relief valve with the mounting groove is pegged graft, the tank bottom indent of mounting groove is equipped with the relief groove, the relief groove is used for holding the discharge when the battery was released, the relief valve is in orthographic projection on the bottom plate is located in the relief groove.
Further, the diameter of the mounting groove is larger than that of the battery, and a glue layer is arranged on the groove wall of the mounting groove and used for filling a gap between the battery and the mounting groove.
Further, the notch of the mounting groove is provided with an oblique angle structure or a round angle structure.
Further, a pressure relief hole is formed in the wall of the pressure relief groove, and the pressure relief groove is communicated with one side surface of the bottom plate, which is away from the battery, through the pressure relief hole.
Further, the pressure relief holes are multiple, and the pressure relief holes are distributed at intervals along the circumferential direction of the pressure relief groove.
Further, the bottom plate comprises an integrally formed plate body and a protruding portion, the mounting groove is formed in one side face of the plate body, the protruding portion protrudes out of one side face of the plate body, which faces away from the mounting groove, and the groove bottom of the pressure relief groove extends into the protruding portion.
Further, the battery pack also comprises a side plate, wherein the side plate is arranged on the periphery of the bottom plate in a surrounding mode, and the side plate and the bottom plate form a containing groove for containing the battery.
Still provide a battery package, including foretell battery tray to and box and a plurality of battery, a plurality of the battery set up in on the battery tray, the battery tray set up in the box, the bottom plate of battery tray with form the pressure release passageway between the bottom of the case of box, be provided with on the bottom plate be used for the intercommunication pressure release groove with the pressure release hole of pressure release passageway.
Further, a plurality of battery packs are arranged on the battery tray, each battery pack comprises a plurality of batteries, the plurality of battery packs are sequentially arranged along a first direction, the plurality of batteries in each battery pack are sequentially arranged along a second direction, the first direction is perpendicular to the second direction, and the batteries in two adjacent battery packs are distributed in a staggered mode.
Further, the bottom of the box body is provided with a cooling assembly.
Compared with the prior art, the utility model has the beneficial effects that: the bottom plate is provided with the mounting groove for mounting the battery, and the bottom of the mounting groove is provided with the pressure relief groove for accommodating the discharged materials. When the pressure release occurs in the battery, the pressure in the pressure release groove is rapidly increased to jack up the battery, so that the discharged matters in the battery can be rapidly discharged into the pressure release groove and the space around the pressure release groove, and the pressure release efficiency of the battery is further ensured. Meanwhile, as the holes are not formed in the bottom plate, the weakening of the structural strength of the bottom plate caused by the holes can be avoided, and the overall structural strength of the battery tray is further improved. Therefore, the battery tray has the characteristics of high pressure release efficiency and high structural strength.
Drawings
Fig. 1 is a schematic diagram illustrating the installation of a battery tray and a battery according to the prior art.
Fig. 2 is a schematic view of a battery tray according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram illustrating the installation of a battery tray and a battery according to an embodiment of the utility model.
Fig. 4 is a partial cross-sectional view of a battery tray according to an embodiment of the present utility model.
Fig. 5 is a partial cross-sectional view of a battery pack according to an embodiment of the present utility model.
In fig. 1:
1', a battery tray; 2', a bracket; 3', a battery; 31', a pressure relief valve; 4', a box bottom plate;
fig. 2 to 5:
1. a bottom plate; 11. a plate body; 12. a boss; 13. a mounting groove; 14. a pressure relief groove; 15. a pressure relief hole; 16. a bevel structure; 2. a side plate; 3. a battery; 4. a heat dissipation plate; 5. and a pressure release channel.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the utility model more clear, the technical scheme of the utility model is further described below by a specific embodiment in combination with the attached drawings.
As shown in fig. 2 to 4, the present utility model provides a battery tray for mounting batteries 3, on which a plurality of batteries 3 are mounted to form a battery module. The battery 3 is the cylinder battery, and the central point of the bottom of battery 3 is provided with the relief valve that is used for the pressure release, and when the battery 3 breaks down, when the inside pressure of battery 3 exceeded the settlement pressure, the relief valve can take place to fracture or drop, and then makes the inside gaseous, the discharge such as electrolyte of battery 3 discharge from the bottom of battery 3 to avoid battery 3 to explode. The battery tray comprises a bottom plate 1 for bearing the battery 3 and a side plate 2 which is arranged on the periphery of the bottom plate 1 in a surrounding mode, wherein the side plate 2 is perpendicular to the bottom plate 1, and a containing groove for containing the battery 3 is formed between the side plate 2 and the bottom plate 1 in a surrounding mode. A plurality of mounting grooves 13 are provided on the base plate 1 at intervals, and the mounting grooves 13 are used for mounting the batteries 3, so that the distribution form of the mounting grooves 13 matches the distribution form of the batteries 3. The bottom end of the battery 3 is inserted into the mounting groove 13 so that the battery 3 is fixed to the base plate 1. The bottom of the mounting groove 13 is concavely provided with a pressure relief groove 14, and the pressure relief groove 14 is used for accommodating the discharged matters when the battery 3 is depressurized. The orthographic projection of the relief valve of the bottom of the battery 3 on the bottom plate 1 is positioned in the relief groove 14, namely, the relief valve is positioned at a position corresponding to the notch of the relief groove 14, so that the relief valve can fall into the relief groove 14 after the relief valve is separated from the battery 3.
Specifically, the cross section of the mounting groove 13 is circular, the shape of the mounting groove 13 is matched with that of the battery 3, and when the battery 3 is a square battery, the cross section of the mounting groove 13 is also square. The cross-sectional shape of the pressure release groove 14 is not limited, and the pressure release valve and the discharge can smoothly enter the pressure release groove 14 during pressure release. In this embodiment, the cross section of the pressure relief groove 14 is circular, so as to facilitate processing. The pressure relief groove 14 is arranged coaxially with the mounting groove 13, and the diameter of the pressure relief groove 14 is larger than the diameter of the pressure relief valve and smaller than the diameter of the mounting groove 13.
It will be appreciated that when the pressure relief of the battery 3 occurs, the pressure relief valve opens and the exhaust of gas, electrolyte, etc. from the inside of the battery 3 is discharged from the bottom end of the battery 3 and into the pressure relief groove 14. The pressure in the pressure release groove 14 sharply rises to jack up the battery 3 upwards, and the battery 3 is separated from the bottom plate 1, so that part of discharged matters are contained in the pressure release groove 14, and the other part of discharged matters can be rapidly discharged into the space near the pressure release groove 14, so that the pressure release efficiency of the battery 3 is ensured, and explosion of the internal pressure of the battery 3 due to incapability of timely pressure release is avoided. Meanwhile, compared with the prior art, as the holes are not formed in the bottom plate 1, the weakening of the structural strength of the bottom plate 1 caused by the holes can be avoided, and the overall structural strength of the battery tray is improved.
It should be noted that, the pressure release groove 14 is a cavity structure with an opening, when the battery 3 is mounted on the bottom plate 1, the bottom end of the battery 4 is plugged on the opening of the pressure release groove 14, so that the pressure release groove 14 is a closed cavity.
Alternatively, referring to fig. 4, the diameter of the mounting groove 13 is larger than the diameter of the battery 3. The battery 3 expands slightly during operation, and by making the diameter of the mounting groove 13 larger than the diameter of the battery 3, the battery 3 can expand freely during operation. In order to ensure the installation stability of the battery 3 on the battery tray, the groove wall of the installation groove 13 is provided with a glue layer, and the glue layer is made of structural glue. The glue film can be used for filling the gap between the battery 3 and the mounting groove 13, and plays a role in bonding between the battery 3 and the bottom plate 1, so that the mounting quality of the battery 3 is ensured.
In order to facilitate the battery 3 to be smoothly lifted up during pressure relief, the notch of the mounting groove 13 is provided with a bevel structure 16 or a rounded corner structure.
The bottom plate 1 comprises a plate body 11 and a protruding portion 12, the mounting groove 13 is formed in one side face of the plate body 11, the protruding portion 12 protrudes out of one side face of the plate body 11, which faces away from the mounting groove 13, and the protruding portion 12 and the plate body 11 are integrally formed. The pressure relief groove 14 is formed in the bottom of the mounting groove 13, and the bottom of the pressure relief groove 14 extends into the boss 12. The bottom plate 1 of the structure can be directly formed by stamping, and is convenient to process. Meanwhile, the protruding portion 12 can also play a role in strengthening the structural strength of the plate body 11, and further improve the structural strength of the whole battery tray.
Optionally, referring to fig. 5, a pressure relief hole 15 is provided in the wall of the pressure relief groove 14. The pressure relief holes 15 are a plurality of, and a plurality of pressure relief holes 15 are distributed along the circumference direction interval of the pressure relief groove 14. The pressure relief groove 14 is communicated with one side surface of the bottom plate 1, which is far away from the battery 3, by the pressure relief hole 15, so that gas or electrolyte in the pressure relief groove 14 can be discharged to one side of the bottom plate 1, which is far away from the battery 3, along the pressure relief hole 15. In this embodiment, the size of the pressure release holes 15 is smaller, and the sum of the cross sections of all the pressure release holes 15 is smaller than the size of the pressure release outlet at the bottom end of the battery 3. So that the pressure in the pressure release groove 14 can rise sharply to lift the battery 3. By providing the pressure relief hole 15, the discharged matter of the battery 3 during pressure relief can be discharged to the side of the bottom plate 1 facing away from the battery 3, and a larger accommodating space is provided for the discharged matter.
As shown in fig. 3 and 5, a battery pack is also provided. The battery pack includes a case, and a battery tray and a plurality of batteries 3 disposed in the case. A plurality of batteries 3 are mounted on a battery tray and form a battery module, and one or more battery modules may be mounted in the case. The box body is square cavity structure, and the battery tray is installed in the bottom position (i.e. the bottom of the case) of box body. The bottom of the box body is a box bottom plate, and the battery tray is placed on the box bottom plate. Since the side surface of the bottom plate 1, which is away from the battery 3, is convexly provided with the protruding part 12, a gap is formed between the bottom plate 1 and the box bottom plate, and the gap can form the pressure relief channel 5 for accommodating the discharge of the battery 3. When the battery 3 is depressurized, the discharged material is firstly discharged into the pressure relief groove 14, and part of the discharged material can be discharged into the pressure relief channel 5 through the pressure relief hole 15.
Specifically, a plurality of battery packs each including a plurality of batteries 3 are provided on the battery tray. The plurality of battery packs are arranged in order along the width direction (Y direction in the drawing) of the battery tray, and the plurality of batteries 3 in each battery pack are arranged in order along the length direction (X direction in the drawing) of the battery tray. The batteries 3 in two adjacent battery packs are distributed in a staggered manner, so that the space utilization rate of the whole battery tray is improved.
The bottom of the box body is provided with a cooling assembly, and the cooling assembly carries out heat dissipation treatment on the battery module in a liquid cooling or air cooling mode. The cooling assembly is arranged on the tank bottom plate to form a heat distribution plate 4. Of course, the heat dissipation plate 4 may be independently provided, and the heat dissipation plate 4 may be located between the battery tray and the case bottom plate. Through setting up heating panel 4, accessible heating panel 4 cools down the discharge in discharge and the pressure release groove 14 in the pressure release passageway 5 to avoid battery 3 exhaust heat to battery 3 diffusion around, and then avoid the discharge to cause the heat to influence around battery 3, guarantee the operation safety of battery package. Meanwhile, when the battery tray is installed, the protruding portion 12 on the bottom plate 1 is abutted to the bottom of the box, so that the protruding portion 12 plays a supporting role on the battery tray, and further the structural strength of the whole battery tray is improved.
The remarkable effects of this embodiment are: by providing the mounting groove 13 for mounting the battery 3 on the base plate 1 and providing the pressure relief groove 14 for accommodating the discharge at the bottom of the mounting groove 13. When the pressure release occurs in the battery 3, the pressure in the pressure release groove 14 is rapidly increased to jack up the battery 3, so that the discharged matters in the battery 3 can be rapidly discharged into the pressure release groove 14 and the space around the pressure release groove 14, and the pressure release efficiency of the battery 3 is further ensured. Meanwhile, as the holes are not formed in the bottom plate 1, the weakening of the structural strength of the bottom plate 1 caused by the holes can be avoided, and the overall structural strength of the battery tray is further improved. Therefore, the battery tray has the characteristics of high pressure release efficiency and high structural strength.
The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.
Claims (10)
1. The utility model provides a battery tray, its characterized in that, including the bottom plate that is used for bearing the weight of the battery, the interval is provided with a plurality of mounting grooves on the bottom plate, the battery have the one end of relief valve with the mounting groove is pegged graft, the tank bottom indent of mounting groove is equipped with the relief groove, the relief groove is used for holding the discharge when the battery pressure release, the relief valve is in orthographic projection on the bottom plate is located in the relief groove.
2. The battery tray of claim 1, wherein the mounting groove has a diameter greater than the diameter of the battery, and a glue layer is provided on a wall of the mounting groove, the glue layer being used to fill a gap between the battery and the mounting groove.
3. The battery tray of claim 1, wherein the notch of the mounting groove is provided with a bevel or rounded corner structure.
4. The battery tray according to claim 1, wherein a pressure relief hole is formed in a wall of the pressure relief groove, and the pressure relief groove is communicated with a side surface of the bottom plate, which is away from the battery, through the pressure relief hole.
5. The battery tray of claim 4, wherein the pressure relief holes are a plurality of, the plurality of pressure relief holes being spaced apart along a circumferential direction of the pressure relief groove.
6. The battery tray according to claim 1, wherein the bottom plate comprises an integrally formed plate body and a protruding portion, the mounting groove is formed in one side surface of the plate body, the protruding portion protrudes out of one side surface of the plate body, which faces away from the mounting groove, and the groove bottom of the pressure relief groove extends into the protruding portion.
7. The battery tray according to any one of claims 1 to 6, further comprising a side plate surrounding a peripheral portion of the bottom plate, the side plate and the bottom plate surrounding a receiving groove for receiving the battery.
8. A battery package, characterized by, including the battery tray of any one of claims 1 to 7, and box and a plurality of battery, a plurality of the battery set up in on the battery tray, the battery tray set up in the box, form the pressure release passageway between the bottom plate of battery tray and the bottom of the box, be provided with on the bottom plate and be used for the intercommunication pressure release groove with the pressure release hole of pressure release passageway.
9. The battery pack according to claim 8, wherein a plurality of battery packs are provided on the battery tray, each of the battery packs includes a plurality of the batteries, the plurality of battery packs are sequentially arranged along a first direction, the plurality of batteries in each battery pack are sequentially arranged along a second direction, the first direction is perpendicular to the second direction, and the batteries in two adjacent battery packs are distributed in a staggered manner.
10. The battery pack of claim 8, wherein the bottom of the case is provided with a cooling assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320377272.8U CN219801120U (en) | 2023-03-03 | 2023-03-03 | Battery tray and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320377272.8U CN219801120U (en) | 2023-03-03 | 2023-03-03 | Battery tray and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219801120U true CN219801120U (en) | 2023-10-03 |
Family
ID=88183167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320377272.8U Active CN219801120U (en) | 2023-03-03 | 2023-03-03 | Battery tray and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219801120U (en) |
-
2023
- 2023-03-03 CN CN202320377272.8U patent/CN219801120U/en active Active
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