CN220021389U - Battery pack and vehicle - Google Patents
Battery pack and vehicle Download PDFInfo
- Publication number
- CN220021389U CN220021389U CN202320329196.3U CN202320329196U CN220021389U CN 220021389 U CN220021389 U CN 220021389U CN 202320329196 U CN202320329196 U CN 202320329196U CN 220021389 U CN220021389 U CN 220021389U
- Authority
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- Prior art keywords
- assembly
- battery pack
- guard plate
- bottom guard
- rib
- 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.)
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- 210000003205 muscle Anatomy 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 description 29
- 238000007789 sealing Methods 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 210000003850 cellular structure Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000008961 swelling Effects 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack and a vehicle, wherein the battery pack comprises a frame body assembly and a bottom guard plate assembly, the frame body assembly comprises a side beam assembly and a cross beam assembly, the side beam assembly is enclosed to form a containing cavity, the cross beam assembly is arranged in the containing cavity and divides the containing cavity into at least two battery cell containing cavities, and each battery cell containing cavity is correspondingly provided with one battery cell assembly; the bottom guard board assembly is located the bottom of framework assembly, and the bottom guard board assembly includes bottom guard board and protruding muscle subassembly, and protruding muscle subassembly is located at one side of end guard board towards the electric core and holds the chamber, and protruding muscle subassembly and beam assembly fixed connection.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack and a vehicle.
Background
The bottom guard plate of the battery pack in the related art is generally formed by stamping using a relatively thick aluminum plate or a relatively thin steel plate. The aluminum plate thickness is great can occupy the space in battery package height direction, and aluminum plate fusing point is lower, when the battery package takes place thermal runaway, and the high temperature leads to aluminum plate to bulge even by burn-through, in order to protect the backplate not by burn-through, increases thermal-insulated cotton between backplate and electric core at the bottom generally, but like this can increase the cost. The thinner steel plate thickness can lead to the steel plate to rise seriously when thermal runaway takes place, if increase steel plate thickness then can increase the weight of battery package to a great extent, has reduced battery package energy density.
In view of the foregoing, there is a need for a battery pack and a vehicle that solve the above-mentioned problems.
Disclosure of Invention
The embodiment of the utility model provides a battery pack and a vehicle, which can solve the technical problems that the bottom guard plate of the battery pack is weak in strength, and bulges and even burns out easily when thermal runaway occurs.
In a first aspect, embodiments of the present utility model provide a battery pack including:
the frame body assembly comprises a side beam assembly and a beam assembly, wherein the side beam assembly is enclosed to form a containing cavity, the beam assembly is arranged in the containing cavity and divides the containing cavity into at least two electric core containing cavities, and each electric core containing cavity is correspondingly provided with an electric core assembly; and
the bottom guard plate assembly is located the bottom of framework assembly, the bottom guard plate assembly includes bottom guard plate and protruding muscle subassembly, protruding muscle subassembly is located the bottom guard plate orientation one side in electric core holding chamber, just protruding muscle subassembly with beam assembly fixed connection.
In an embodiment, the beam assembly comprises a first beam and a second beam connected with the side beam assembly, the first beam is at least one, the at least one first beam divides the accommodating cavity into at least two electric core accommodating cavities, the second beam divides the accommodating cavity into the electric core accommodating cavity and an electric element accommodating cavity, and the electric element accommodating cavity is positioned at the front end of the electric core accommodating cavity;
the convex rib assembly comprises at least one transverse convex rib, and the at least one transverse convex rib is correspondingly and fixedly connected with the at least one first cross beam.
In one embodiment, a space exists between the lateral ribs and the first cross member in the thickness direction of the battery pack.
In one embodiment, the spacing between the lateral ribs and the first beam is greater than 5.5 mm in the thickness direction of the battery pack.
In an embodiment, the bottom guard plate assembly further comprises an annular rib extending along a circumference of the bottom guard plate, and the annular rib is fixedly connected with the second cross beam.
In an embodiment, the annular convex rib is provided with a plurality of first protruding structures near the end face of the battery cell accommodating cavity, the plurality of first protruding structures are used for connecting the annular convex rib and the first cross beam, and the first protruding structures are fixedly connected with the first cross beam through first fasteners.
In an embodiment, the end face of the horizontal convex rib, which is close to the cell accommodating cavity, is provided with a plurality of second convex structures, the plurality of second convex structures are used for connecting the horizontal convex rib and the first cross beam, the outer diameters of the plurality of second convex structures are smaller than the outer diameters of the plurality of second convex structures, and the plurality of first convex structures are fixedly connected with the first cross beam through second fasteners.
In one embodiment, the bottom shield further comprises a protective flange formed at an outer peripheral edge of the bottom shield and disposed around the bottom shield.
In an embodiment, the battery pack further comprises a sealing ring, wherein the sealing ring is located between the side beam assembly and the bottom guard plate, and the sealing ring is located inside the protection flanging.
In an embodiment, a connecting seat is arranged between two ends of the transverse convex rib and the first cross beam, and the transverse convex rib is assembled with the first cross beam through the connecting seat.
In one embodiment, the material of the bottom shield comprises steel sheet.
In a second aspect, an embodiment of the present utility model provides a vehicle comprising the battery pack of any one of the above embodiments.
The embodiment of the utility model has the beneficial effects that:
in the embodiment of the utility model, the convex rib assembly is arranged through the bottom guard plate assembly, the convex rib assembly is arranged on one side of the bottom guard plate, which faces the battery cell accommodating cavity, and the convex rib assembly is fixedly connected with the beam assembly; the strength of the bottom guard plate assembly is improved by the aid of the convex rib assembly, the bottom guard plate of the battery pack is not easy to bulge when thermal runaway occurs, and the problem that the bottom guard plate of the battery pack is seriously bulged or even burnt out when thermal runaway occurs due to weak strength of the bottom guard plate of the battery pack in the related art is solved; in addition, the thickness of the bottom guard plate does not need to be thicker, so that the space occupied by the bottom guard plate assembly in the height direction of the battery pack is reduced, and the energy density of the battery pack is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an exploded view of a battery pack according to an embodiment of the present utility model;
FIG. 2 is a schematic plan view of a bottom shield assembly according to an embodiment of the present utility model;
FIG. 3 is a schematic plan view of a frame assembly according to an embodiment of the present utility model;
fig. 4 is a partially enlarged schematic illustration of a battery pack provided in an embodiment of the utility model;
fig. 5 is another partially enlarged schematic view of a battery pack according to an embodiment of the present utility model.
Reference numerals illustrate:
10. a frame assembly; 11. a side beam assembly; 111. edge beams; 12. a beam assembly; 121. a first cross beam; 1211. a pressure relief port; 122. a second cross beam; 20. a bottom guard plate assembly; 21. a bottom guard board; 22. a rib assembly; 221. a transverse convex rib; 222. annular ribs; 23. protective flanging; 24. a first bump structure; 25. a second bump structure; 26. a bolt; 27. pulling and riveting a nut; 28. a large hexagonal nut; 29. a lower sleeve; 30. a seal ring; 31. a connecting seat;
101. a receiving chamber; 102. a cell receiving cavity; 103. an electrical component housing cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The battery pack provided by the utility model comprises a frame body assembly 10 and a bottom guard plate assembly 20; the frame body assembly 10 comprises a side beam assembly 11 and a beam assembly 12, the side beam assembly 11 is enclosed to form an accommodating cavity 101, the beam assembly 12 is arranged in the accommodating cavity 101, the accommodating cavity 101 is divided into at least two battery cell accommodating cavities 102, and each battery cell accommodating cavity 102 is correspondingly provided with a battery cell assembly.
The bottom guard plate assembly 20 is positioned at the bottom of the frame body assembly 10, the bottom guard plate assembly 20 comprises a bottom guard plate 21 and a convex rib assembly 22, the convex rib assembly 22 is arranged at one side of the bottom guard plate 21 facing the cell accommodating cavity 102, and the convex rib assembly 22 is fixedly connected with the beam assembly 12
The utility model is provided with the convex rib component 22 through the bottom guard plate component 20, the convex rib component 22 is arranged on one side of the bottom guard plate 21 facing the battery cell accommodating cavity 102, and the convex rib component 22 is fixedly connected with the beam component 12; the strength of the bottom guard plate assembly 20 is improved by the arrangement of the convex rib assembly 22, so that the bottom guard plate of the battery pack is not easy to bulge when thermal runaway occurs, and the problem that the bottom guard plate of the battery pack is seriously bulged or even burnt out when the thermal runaway occurs due to weaker strength of the bottom guard plate in the related art is solved; in addition, the thickness of the bottom guard plate 21 does not need to be thicker, so that the space occupied by the bottom guard plate assembly 20 in the height direction of the battery pack is reduced, and the energy density of the battery pack is improved.
The battery pack of the present utility model will be described in detail with reference to specific examples.
Referring to fig. 1 to 3, the battery pack includes a frame assembly 10 and a bottom rail assembly 20, and the frame assembly 10 includes a side rail assembly 11 and a cross rail assembly 12. Wherein the side sill assembly 11 includes a plurality of side sills 111 connected, and the beam assembly 12 includes a plurality of beams connected to the side sills 111. The side beams 111 and the cross beams are each constructed in a bar-type structure, and a plurality of side beams 111 are connected to constitute an annular frame. The crossbeam of the crossbeam assembly 12 separates the accommodating cavity 101, so that the mutual influence of structures among different areas is avoided, the crossbeam assembly 12 is arranged inside the annular frame surrounded by the boundary beam assembly 11, and the structural strength of the frame body assembly 10 is improved.
In a specific embodiment, the beam assembly 12 includes a first beam 121 and a second beam 122 connected to the side beam assembly 11, the first beam 121 is at least one, the at least one first beam 121 divides the accommodating chamber 101 into at least two cell accommodating chambers 102, the second beam 122 divides the accommodating chamber 101 into the cell accommodating chamber 102 and the electrical component accommodating chamber 103, the electrical component accommodating chamber 103 is located at a front end of the cell accommodating chamber 102, and the electrical component accommodating chamber 103 is used for accommodating an electrical component. The second beam 122 separates the cell assembly from the electrical components, preventing damage to the electrical components during thermal runaway of the cell assembly, impact on the control system, etc.
It should be noted that, the beam assembly 12 may include one or more first beams, and when one first beam 121 is provided, the accommodating cavity 101 is divided into two cell accommodating cavities 102; when the plurality of first cross beams 121 are arranged, the plurality of first cross beams 121 are arranged in parallel at intervals to separate the accommodating cavity 101 into a plurality of battery cell accommodating cavities 102, and one battery cell accommodating cavity 102 is formed between every two adjacent first cross beams 121 so as to prevent other battery cell components from being damaged when the battery cells in one battery cell component are out of control; the first beam 121 and the second beam 122 may be disposed in parallel, may be disposed vertically, or may be disposed at other angles, which is not limited in this embodiment.
Illustratively, as shown in fig. 3, the beam assembly 12 includes 3 first beams 121,3 having first beams 121 arranged in parallel at intervals along the length of the frame assembly 10, the 3 first beams 121 dividing the receiving cavity 101 into 4 cell receiving cavities 102. The 3 first beams 121 are each disposed in parallel with the second beam 122.
The bottom guard 21 is attached to the bottom of the frame assembly 10 and is used to connect to the side rail 111 of the side rail assembly 11. The bottom guard 21 is used to protect the bottom of the battery pack from damage caused by the collision of the bottom of the battery pack during driving of the vehicle.
In one embodiment, the rib assembly 22 includes at least one transverse rib 221, and the at least one transverse rib 221 is fixedly connected to the at least one first beam 121. The transverse convex rib 221 is a reinforcing convex rib, and the strength of the bottom guard plate assembly is improved due to the arrangement of the transverse convex rib 221, so that the bottom guard plate assembly is not easy to bulge when thermal runaway occurs. In addition, since the bottom guard plate assembly 20 has sufficient strength, the thickness of the bottom guard plate 21 does not need to be set thicker, the space occupied by the bottom guard plate assembly 20 in the height direction of the battery pack is reduced, and the energy density of the battery pack is improved.
Further, the number of the transverse convex ribs 221 is the same as that of the first cross beam 121, and the transverse convex ribs 221 and the first cross beam 121 are arranged in parallel, so that the bonding area between the transverse convex ribs 221 and the first cross beam 121 is increased, the connection strength between the transverse convex ribs 221 and the first cross beam 121 is improved, and the strength of the bottom guard plate assembly 20 is further improved.
Illustratively, as shown in fig. 2, the number of the horizontal ribs 221 is 3, the 3 horizontal ribs 221 are arranged in parallel at intervals along the length direction of the bottom guard 21, and the 3 horizontal ribs 221 are connected to the 3 first cross members 121 in one-to-one correspondence. The three horizontal ribs 221 set the space interval of the bottom guard plate 21 as four protection areas, and the four protection areas of the bottom guard plate 21 are in one-to-one correspondence with the four battery cell accommodating cavities 102 of the frame assembly 10.
In a specific embodiment, a connecting seat is provided between the two ends of the transverse rib 221 and the first beam 121, and the transverse rib 221 is assembled with the first beam 121 through the connecting seat.
In a specific embodiment, as shown in fig. 4, a pressure relief opening 1211 is provided on the first beam 121, and the pressure relief opening 1211 is connected to the cell accommodating chambers 102 on two sides of the first beam 121, so as to relieve pressure of the cell assembly; the pressure relief opening 1211 may be a pressure relief hole, a pressure relief groove, a pressure relief gap, or any combination of a pressure relief hole, a pressure relief groove, and a pressure relief gap. In a specific embodiment, as shown in fig. 5, there is a space d between the lateral bead 221 and the first cross member 121 in the thickness direction of the battery pack. Specifically, in the thickness direction of the battery pack, the distance d between the transverse convex rib 221 and the first cross beam 121 is greater than 5.5 mm, when a certain cell assembly is out of control, the pressure can be guaranteed to pass through quickly, effective pressure relief is performed, the risk of damage to the frame assembly 10 due to overlarge local pressure of the battery pack is avoided, and explosion is prevented.
In one embodiment, the bottom guard plate assembly 20 further includes an annular rib 222, the annular rib 222 extends along the circumferential direction of the bottom guard plate 21, and the annular rib 222 is fixedly connected with the second beam 122, so that the strength of the bottom guard plate assembly 20 is improved, and meanwhile, the annular rib 222 is tightly attached to the second beam 122, when a certain cell assembly is out of control, open fire can be prevented from spreading, and the sealing ring is burnt; and can prevent the smoke generated by combustion from diffusing, so as to prevent the smoke from entering the electric element accommodating cavity 103 and affecting the functions of the electric element.
Further, the end face of the annular rib 222, which is close to the cell accommodating cavity 102, is provided with a plurality of first protruding structures 24, the plurality of first protruding structures 24 are used for connecting the annular rib 222 and the first cross beam 121, and the first protruding structures 24 are fixedly connected with the first cross beam 121 through a first fastener.
Alternatively, the first fastener may be a large hexagonal nut 28 and a lower sleeve 29, the lower sleeve 29 penetrating the first projecting structure 24 and the side beam, and the first projecting structure 24 being connected to the lower sleeve 29 by the large hexagonal nut 28.
In a specific embodiment, the end surface of the transverse convex rib 221, which is close to the cell accommodating cavity 102, is provided with a plurality of second convex structures 25, the plurality of second convex structures 25 are used for connecting the transverse convex rib 221 and the first cross beam 121, the outer diameter of the plurality of second convex structures 25 is smaller than that of the plurality of first convex structures 24, and the plurality of second convex structures 25 are fixedly connected with the first cross beam 121 through second fasteners, so that the transverse convex rib 221 is in fastening connection with the first cross beam 121, further, the bottom guard plate 21 is in fastening connection with the cross beam assembly 12, further, the bottom guard plate 21 is in fastening connection with the frame assembly 10, the strength of the bottom guard plate 21 is improved, and the bulge phenomenon is avoided when thermal runaway occurs.
Optionally, the second fastening member includes a bolt 26 and a rivet nut 27, the bolt 26 is disposed on a lower end surface of the transverse rib 221, the rivet nut 27 is disposed on a lower end surface of the first beam 121, and the plurality of first protruding structures 24 are correspondingly connected with the plurality of rivet nuts 27 through the plurality of bolts 26. Specifically, the blind rivet nut 27 may be fixed to the first cross member 121 by friction welding, and an internal thread is formed in the blind rivet nut 27, and the bolt 26 is correspondingly engaged with the blind rivet nut 27.
Further, the end surface of the transverse convex rib 221, which is close to the cell accommodating cavity 102, may be further provided with a plurality of first convex structures 24, where the plurality of first convex structures 24 are used to connect the transverse convex rib 221 and the first cross beam 121, and the plurality of first convex structures 24 are fixedly connected with the first cross beam 121 through a second fastener.
It will be appreciated that the transverse ribs 221 are connected to the first cross member 121 by the second fastening members and the first fastening members, and the annular ribs 222 are connected to the second cross member 122 by the first fastening members, so that a large number of welding operations are reduced, the production efficiency is greatly improved, the production cost is reduced, and thermal deformation caused by welding is avoided, so that the dimensional accuracy and the material mechanical properties of the battery pack can be greatly ensured. In addition, the first fastener and the second fastener can be conveniently installed or detached by an assembler by using a tool.
In a specific embodiment, the bottom guard 21 further includes a protective flange 23, where the protective flange 23 is formed at the peripheral edge of the bottom guard 21 and is disposed around the bottom guard 21, so as to facilitate improving the strength of the bottom guard 21 and avoid swelling when thermal runaway occurs.
Further, the battery pack further comprises a sealing ring 30, the sealing ring 30 is located between the side beam assembly 11 and the bottom guard plate 21, the sealing ring 30 is located inside the protection flange 23, and the protection flange 23 can protect the sealing ring 30 from being easily damaged from the outside, so that the risk of sealing failure is reduced. The sealing ring 30 can be a circumferentially closed annular structure which is designed along with the shape of the protection flanging 23, so that each position of the bottom guard plate 21 in the circumferential direction can be effectively sealed, the sealing reliability of the battery pack is guaranteed, the safety of the whole battery pack is improved, the thickness of the sealing ring 30 is reduced, and the utilization rate of materials is improved.
In one embodiment, the material of the bottom guard 21 comprises steel sheet, which has a low melting point and high strength compared to aluminum sheet, so that the risk of bulging of the bottom guard 21 can be reduced when thermal runaway occurs in a certain cell assembly. Optionally, the material of the bottom shield 21 includes HC340/590DP.
Correspondingly, the embodiment of the utility model also provides a vehicle which comprises a vehicle body, an engine and the battery pack of any one embodiment of the utility model, wherein the engine and the battery pack are arranged in the vehicle body, and the battery pack provides electric power for the engine. In the embodiment of the utility model, the type of the vehicle is not limited, and the vehicle may be an electric vehicle or a hybrid vehicle, and the requirement is satisfied.
In summary, the embodiment of the utility model provides a battery pack and a vehicle, wherein the battery pack is provided with a convex rib assembly, the convex rib assembly is arranged on one side of a bottom guard plate, which faces a battery cell accommodating cavity, and the convex rib assembly is fixedly connected with a beam assembly; the strength of the bottom guard plate assembly is improved by the arrangement of the convex rib assembly, so that the bottom guard plate of the battery pack is not easy to bulge when thermal runaway occurs, and the problem that the bottom guard plate of the battery pack is seriously bulged or even burnt out when thermal runaway occurs due to weak strength of the bottom guard plate of the battery pack in the related art is solved; in addition, the thickness of the bottom guard plate does not need to be thicker, so that the space occupied by the bottom guard plate assembly in the height direction of the battery pack is reduced, and the energy density of the battery pack is improved.
The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.
Claims (12)
1. A battery pack, comprising:
the frame body assembly comprises a side beam assembly and a beam assembly, wherein the side beam assembly is enclosed to form a containing cavity, the beam assembly is arranged in the containing cavity and divides the containing cavity into at least two electric core containing cavities, and each electric core containing cavity is correspondingly provided with an electric core assembly; and
the bottom guard plate assembly is located the bottom of framework assembly, the bottom guard plate assembly includes bottom guard plate and protruding muscle subassembly, protruding muscle subassembly is located the bottom guard plate orientation one side in electric core holding chamber, just protruding muscle subassembly with beam assembly fixed connection.
2. The battery pack according to claim 1, wherein the beam assembly includes a first beam and a second beam connected to the side beam assembly, the first beam being provided as at least one, the at least one first beam dividing the housing cavity into the at least two cell housing cavities, the second beam dividing the housing cavity into the cell housing cavity and an electrical component housing cavity, the electrical component housing cavity being located at a front end of the cell housing cavity;
the convex rib assembly comprises at least one transverse convex rib, and the at least one transverse convex rib is correspondingly and fixedly connected with the at least one first cross beam.
3. The battery pack according to claim 2, wherein a space exists between the lateral bead and the first cross member in a thickness direction of the battery pack.
4. The battery pack according to claim 3, wherein a distance between the lateral bead and the first beam in a thickness direction of the battery pack is greater than 5.5 mm.
5. The battery pack of claim 4, wherein the bottom guard plate assembly further comprises an annular bead extending circumferentially of the bottom guard plate, the annular bead being fixedly connected to the second cross member.
6. The battery pack according to claim 5, wherein the annular protruding rib is provided with a plurality of first protruding structures near the end face of the cell accommodating cavity, the plurality of first protruding structures are used for connecting the annular protruding rib and the first cross beam, and the first protruding structures are fixedly connected with the first cross beam through first fasteners.
7. The battery pack according to claim 6, wherein the end face of the transverse convex rib, which is close to the cell accommodating cavity, is provided with a plurality of second convex structures, the plurality of second convex structures are used for connecting the transverse convex rib and the first cross beam, the outer diameter of the plurality of second convex structures is smaller than that of the plurality of second convex structures, and the plurality of first convex structures are fixedly connected with the first cross beam through second fasteners.
8. The battery pack of any one of claims 1-7, wherein the bottom guard plate further comprises a protective flange formed at an outer peripheral edge of the bottom guard plate and disposed around the bottom guard plate.
9. The battery pack of claim 8, further comprising a seal ring positioned between the edge beam assembly and the bottom guard plate, the seal ring positioned inside the protective flange.
10. The battery pack according to any one of claims 2 to 7, wherein a connecting seat is provided between both ends of the lateral protruding rib and the first cross member, and the lateral protruding rib is assembled with the first cross member through the connecting seat.
11. The battery pack of any one of claims 1-7, wherein the material of the bottom guard plate comprises a steel plate.
12. A vehicle comprising a battery pack according to any one of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320329196.3U CN220021389U (en) | 2023-02-24 | 2023-02-24 | Battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320329196.3U CN220021389U (en) | 2023-02-24 | 2023-02-24 | Battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021389U true CN220021389U (en) | 2023-11-14 |
Family
ID=88680515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320329196.3U Active CN220021389U (en) | 2023-02-24 | 2023-02-24 | Battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021389U (en) |
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2023
- 2023-02-24 CN CN202320329196.3U patent/CN220021389U/en active Active
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