CN211428236U - Battery pack and box body thereof - Google Patents
Battery pack and box body thereof Download PDFInfo
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- CN211428236U CN211428236U CN202020095349.9U CN202020095349U CN211428236U CN 211428236 U CN211428236 U CN 211428236U CN 202020095349 U CN202020095349 U CN 202020095349U CN 211428236 U CN211428236 U CN 211428236U
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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 relates to a battery package and box thereof. The battery package box includes battery installation room, and battery installation room includes lateral wall and diapire, battery installation room is used for installing battery monomer, and the lateral wall that corresponds with the great face of the battery monomer that will install of battery installation room is the end wall, be equipped with on the end wall and dodge the groove, dodge the groove and be used for dodging the free clamping jaw of battery that the centre gripping will be installed. The battery pack comprises a battery pack box body and a battery monomer. The utility model discloses a battery package once only can pack into a large amount of battery monomer, has improved the free installation effectiveness of battery, has also improved the installation effectiveness of battery package simultaneously.
Description
Technical Field
The utility model relates to a battery package and box thereof.
Background
The battery pack generally comprises a battery pack box body, the battery pack box body is provided with a containing cavity, and a plurality of battery modules are arranged in the containing cavity. Common battery module structure includes a set of electric core (also battery monomer), two module curb plates, two module end plates and a box, each electric core links together through the mode of polyphone or parallelly connected, module end plate and module curb plate constitute a frame through welding or riveted mode and surround around electric core group, the expansibility of electric core is resisted to module end plate mainly used, the module curb plate is together fixed a position each electric core with the module end plate, the battery module is fixed in the battery package box through corresponding structure.
On one hand, the used structural members are more in types, so that the overall material cost is higher, and the assembly process of the battery pack is more complicated; on the other hand, a large number of structural members occupy most of the space in the battery pack box body, and are not beneficial to improving the energy density of the battery pack; simultaneously, run into under the great condition of vibration, the structure is easy not hard up, makes battery module's fixed certain risk that exists.
In view of the above situation, the chinese patent application with application publication No. CN109742281A discloses a battery box, which includes a single battery (i.e., a battery cell) and a lower box body, where the lower box body includes a bottom plate disposed on the ground and side plates, the upper portion of the lower box body has an opening, a reinforcing beam is disposed on a pair of side plates opposite to the lower box body, at least one surface of the single battery close to the outer side contacts with the side plates or the reinforcing beam of the lower box body, and the side plates or the reinforcing beam of the lower box body can abut against the surface of the single battery, so as to prevent the surface of the single battery from arching outwards due to the expansion force in the battery when the thermal runaway occurs in the single battery; the battery box also comprises a cross beam and a longitudinal beam which are connected with each other, the cross beam and the longitudinal beam jointly divide the inner space of the lower box body into more than two battery placing areas, and the battery monomers are arranged in the battery placing areas in a row.
Above-mentioned battery box is direct to be listed as the battery monomer and place in the district is placed to the battery, has removed tedious module end plate and module curb plate isotructure from, has removed the form that adopts the battery module from promptly, and is corresponding, just reduces the use of structural component, and the cost is reduced has improved the space utilization in the battery box. However, when the battery cells are mounted, the battery cells need to be mounted in the battery placement area one by one, and the mounting efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery pack box body to solve the technical problem that the battery monomer mounting efficiency of the battery pack in the prior art is lower; an object of the utility model is also to provide a battery package that battery monomer installation effectiveness is higher.
In order to achieve the above purpose, the utility model discloses a technical scheme of battery package box is:
the battery pack case includes:
the battery installation chamber comprises a side wall and a bottom wall, the battery installation chamber is used for installing single batteries, and the side wall of the battery installation chamber, which corresponds to the larger surface of the single batteries to be installed, is an end wall;
and the end wall is provided with an avoiding groove which is used for avoiding a clamping jaw for clamping a battery monomer to be installed.
The battery pack box has the beneficial effects that: owing to be equipped with on the lateral wall that corresponds with the great face of the battery monomer that will install at the battery installation room and dodge the groove, like this when installing electric core, can arrange in a row with certain quantity of battery monomer earlier, then get this row of battery monomer with the whole clamp of clamping jaw, and put into the battery installation room, use the clamping jaw to put into the in-process of battery installation room with battery monomer, under the effect of dodging the groove, the clamping jaw can not collide with the end wall and interfere, like this, the clamping jaw can enter into the battery installation room, can guarantee the free stable of battery and place. Compared with the prior art, the utility model discloses a battery package box is when assembling battery monomer, can once only assemble the more battery monomer of quantity, and the battery monomer quantity of assembly matches with the size of battery installation room, has wholly improved the free installation effectiveness of battery.
Further, the length of the end wall meets the installation requirements of at least two battery cells, and the avoidance groove is formed in the end wall at least at the position corresponding to the installation position of the battery cells.
Has the advantages that: the battery pack box body assembling device can be suitable for the assembling requirements of battery pack box bodies arranged with multiple rows or multiple columns of battery monomers, and is wide in application range.
Further, the end wall includes an inner wall and an outer wall with a hollow cavity therebetween, the avoidance groove is formed by a depression in the inner wall.
Has the advantages that: the use material of end wall can be reduced, and manufacturing cost is practiced thrift, lightens the weight of end wall simultaneously, is convenient for realize the lightweight design of battery package.
Further, the groove walls on the two sides of the avoidance groove extend outwards to the outer wall.
Has the advantages that: the parts of the two side groove walls of the avoiding groove, which extend outwards, form reinforcing ribs, and the structural strength of the end wall can be increased.
Further, the distance between the groove walls on the two sides of the avoiding groove gradually increases from the groove bottom of the avoiding groove to the notch of the avoiding groove.
Has the advantages that: the avoiding space can be enlarged, and the assembly of the battery monomers is more convenient.
The utility model discloses a technical scheme of battery package is:
the battery pack comprises a battery pack box body and a battery monomer, the battery pack box body is provided with a battery installation chamber, the battery installation chamber comprises a side wall and a bottom wall, the battery installation chamber is used for installing the battery monomer, and the side wall of the battery installation chamber, corresponding to the larger surface of the battery monomer to be installed, is an end wall;
and the end wall is provided with an avoiding groove which is used for avoiding a clamping jaw for clamping a battery monomer to be installed.
The battery pack has the beneficial effects that: because be equipped with on the lateral wall that corresponds with the great face of the battery monomer that will install at the battery installation room of battery package and dodge the groove, like this when installing electric core, can arrange in a row with certain quantity of battery monomer earlier, then get this row of battery monomer with the whole clamp of clamping jaw, and put into the battery installation room, use the clamping jaw to put into the in-process of battery installation room with battery monomer, under the effect of dodging the groove, the clamping jaw can not collide with the end wall and interfere, like this, the clamping jaw can enter into the battery installation room, can guarantee the free stable of battery and place. Compared with the prior art, the utility model discloses a battery package box is when assembling battery monomer, can once only assemble the more battery monomer of quantity, and the battery monomer quantity of assembly matches with the size of battery installation room, has wholly improved the free installation effectiveness of battery, and then has also improved the installation effectiveness of battery package.
Further, the length of the end wall meets the installation requirements of at least two battery cells, and the avoidance groove is formed in the end wall at least at the position corresponding to the installation position of the battery cells.
Has the advantages that: the battery pack box body assembling device can be suitable for the assembling requirements of battery pack box bodies arranged with multiple rows or multiple columns of battery monomers, and is wide in application range.
Further, the end wall includes an inner wall and an outer wall with a hollow cavity therebetween, the avoidance groove is formed by a depression in the inner wall.
Has the advantages that: the use material of end wall can be reduced, and manufacturing cost is practiced thrift, lightens the weight of end wall simultaneously, is convenient for realize the lightweight design of battery package.
Further, the groove walls on the two sides of the avoidance groove extend outwards to the outer wall.
Has the advantages that: the parts of the two side groove walls of the avoiding groove, which extend outwards, form reinforcing ribs, and the structural strength of the end wall can be increased.
Further, the distance between the groove walls on the two sides of the avoiding groove gradually increases from the groove bottom of the avoiding groove to the notch of the avoiding groove.
Has the advantages that: the avoiding space can be enlarged, and the assembly of the battery monomers is more convenient.
Drawings
Fig. 1 is an exploded view of the battery pack of the present invention;
FIG. 2 is a top view of the side gusset of FIG. 1;
FIG. 3 is a cross-sectional view of the side gusset of FIG. 1;
fig. 4 is a schematic diagram of the battery pack according to the present invention after the battery cells are packed;
fig. 5 is a schematic structural diagram of a clamp (not shown with reinforcing ribs) used when the battery pack of the present invention is used for mounting the battery cells.
Description of reference numerals: 1-bottom plate, 2-side wall, 3-cover plate, 4-battery monomer, 5-transverse connecting plate, 6-longitudinal connecting plate, 7-inner wall, 8-outer wall, 9-buffer area, 10-battery installation chamber, 11-containing cavity, 12-transverse side wall, 13-longitudinal side wall, 14-avoidance groove, 15-extension section, 16-bottom plate connecting hole, 17-connecting lug plate, 18-longitudinal fixing plate, 19-fixing hole, 20-high voltage connector, 21-low voltage connector, 22-clamping jaw, 23-adjusting rod, 24-fastening nut and 25-handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the application, i.e., the embodiments described are only a subset of, and not all embodiments of the application. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present application are described in further detail below with reference to examples.
The utility model discloses an embodiment 1 of battery package:
as shown in fig. 1, 2, 3 and 4, the battery pack comprises a battery pack case and a battery cell 4 mounted in the battery pack case, the battery pack case comprises a cover plate 3, side walls 2 and a bottom plate 1, the side walls 2 and the bottom plate 1 form a containing cavity 11, and the containing cavity 11 is used for mounting the battery cell, a battery management system and other components. The bottom plate 1 is formed by welding aluminum profiles by friction stir welding; the side wall 2 is an extrusion molding profile structure, and a specific die is required during molding; the cover plate 3 is formed by stamping or composite material die pressing.
Specifically, as can be seen from fig. 2 and 3, the side panel 2 includes a side frame, the side frame is a rectangular frame, and includes a lateral side wall 12 and a longitudinal side wall 13, and the side frame and the bottom panel 1 enclose the accommodating cavity 11. The side wall 2 further comprises a longitudinal connecting plate 6, two ends of the longitudinal connecting plate 6 are respectively connected with the transverse side walls 12, a set distance is reserved between the top end of the longitudinal connecting plate 6 and the upper end of the side frame, and a set distance is reserved between the lower end of the longitudinal connecting plate and the bottom end of the side frame.
The longitudinal connecting plates 6 are arranged in the accommodating cavity 11 at intervals, so that the accommodating cavity 11 is divided into three parts along the transverse direction, wherein the two longitudinal connecting plates 6, the transverse side walls 12 and the part of the bottom plate 1 between the two longitudinal connecting plates 6 form a battery mounting chamber 10, and the battery mounting chamber 10 is used for mounting the battery unit 4. The longitudinal connecting plates 6 and the portions of the lateral side walls 12 between the two longitudinal connecting plates 6 form the side walls of the battery mounting compartment 10, as shown in fig. 4, the battery cells 4 are arranged in rows in the lateral direction in the battery mounting compartment 10, and the longitudinal connecting plates 6 correspond to the larger faces of the battery cells 4 to be mounted. An avoiding groove 14 is formed in the longitudinal connecting plate 6, and the avoiding groove 14 is used for avoiding a clamping jaw for clamping a battery monomer to be installed. When the battery monomers are assembled, the battery monomers are integrally arranged into a row, in the arrangement direction of the battery monomers 4, the larger surface of the battery monomer positioned at the front side is attached to the larger surface of the battery monomer adjacent to the battery monomer, namely, the battery monomers are attached to each other tightly, then the larger surface of the battery monomer is clamped by the clamping jaw, and the row of battery monomers are integrally placed into the battery installation chamber. Utilize the clamping jaw to place the free in-process of battery, can avoid bumping under the effect of dodging groove 14 and interfere between clamping jaw and longitudinal tie plate 6, thereby guarantee stable the placing of battery monomer 4, battery monomer 4 puts the back, be in the great face that head end and terminal battery monomer 4 correspond and the contact of laminating of longitudinal tie plate 6, the expansive force that battery monomer 4 produced at the charge-discharge in-process can be eliminated to longitudinal tie plate 6, avoid battery monomer 4 to arch up outwards.
In this embodiment, the longitudinal webs 6 comprise an inner wall 7, an outer wall 8 and an attachment lug 17 connecting the inner wall 7 and the outer wall 8. The hollow cavity is formed between the inner wall 7 and the outer wall 8, so that the number of used materials of the longitudinal connecting plate 6 is reduced, the manufacturing cost is saved, the weight of the longitudinal connecting plate 6 is reduced, and the lightweight design of the battery pack is facilitated. The connecting lug plates 17 are arranged at intervals along the extending direction of the longitudinal connecting plate 6, each connecting lug plate 17 is provided with a bottom plate connecting hole 16, with reference to fig. 1, the bottom plate 1 is provided with a longitudinal fixing plate 18 corresponding to the longitudinal connecting plate 6, and the longitudinal fixing plate 18 is provided with a fixing hole 19 coaxial with the bottom plate connecting hole 16. The thickness of the longitudinal fixing plate 18 is the same as the vertical distance between the lower end of the longitudinal connecting plate 6 and the bottom end of the side frame, so that the longitudinal fixing plate 18 can just support the longitudinal connecting plate 6 when the side frame 2 is assembled with the bottom plate 1.
The inner wall 7 is provided with a recess, and the escape groove 14 is formed by the recess in the inner wall 7. In order to ensure that the avoiding groove 14 has enough avoiding space to avoid the clamping jaw, the distance between the two side groove walls of the avoiding groove 14 is gradually increased from the groove wall of the avoiding groove 14 to the notch of the avoiding groove 14, so that the avoiding groove 14 forms an expanding groove, and the avoiding space is increased.
Considering the problem that the strength of the longitudinal connecting plate 6 is lower due to the adoption of the inner-outer double-layer hollow structure, the groove walls on the two sides of the groove 14 are extended towards the outer wall 8 and are extended to the outer wall to be connected with the outer wall 8. The parts of the groove walls at the two sides of the avoiding groove 14 extending outwards are extension sections 15, and the extension sections 15 are equivalent to reinforcing ribs and used for reinforcing the structural strength of the longitudinal connecting plate 6.
The side wall 2 further comprises two transverse connecting plates 5, the two transverse connecting plates 5 are arranged in the battery installation chamber 10 at intervals along the longitudinal direction, two ends of each transverse connecting plate 5 are correspondingly connected with the two longitudinal connecting plates 6 respectively, so that the battery installation chamber 10 is divided into three installation areas, and the battery monomers 4 are arranged in rows in each installation area. Horizontal connecting plate 7 and longitudinal tie plate 8 can play the free positioning action of battery, and the length of longitudinal tie plate 6 satisfies the installation requirement of three rows of battery monomer 4 to all be equipped with two on the part that corresponds with each row of battery monomer of longitudinal tie plate 6 and dodge groove 14, these two are dodged groove 14 interval and are arranged, guarantee that the battery monomer 4 that is in every installing zone can both pass through the normal assembly of clamping jaw. Have the space between the less side of transverse connection board 5 and battery monomer 4, during the assembly, can fill the structure in this space and glue to it is fixed to make battery monomer 4 and transverse connection board 5 bond, guarantees that battery monomer 4's is fixed reliable. The buffer area 9 is formed between each longitudinal connecting plate 6 and the corresponding longitudinal side wall 13, and the buffer area 9 is used for buffering external extrusion on the side wall 2, so that the extrusion force is prevented from being transmitted to the corresponding battery monomer 4, and a certain protection effect is realized on the battery monomer 4. The lateral width of one of the two buffer areas is larger than that of the other buffer area, the battery management system is installed in the buffer area with the large lateral width, and the buffer area with the small lateral width is a cavity.
In this embodiment, the structure of the clamp for mounting the battery cells is shown in fig. 5, and the clamp includes a pair of clamping jaws 22 and an adjusting rod 23 connected to the two clamping jaws 22, and both the clamping jaws 22 can move along the extending direction of the adjusting rod 23, so that the number of the clamped battery cells can be adjusted. The opposite sides of the two clamping jaws 22 are provided with reinforcing ribs to improve the structural strength of the clamping jaws 22, and the avoiding groove 14 is used for avoiding the reinforcing ribs on the clamping jaws 22. In order to ensure the clamping degree of the clamping jaws 22 to the battery cell, fastening nuts 24 are arranged on the adjusting rod 23 on the sides opposite to the two clamping jaws 22, and the fastening nuts 24 are in threaded fit with the adjusting rod 23. When the two clamping jaws 22 clamp a certain number of battery cells, the clamping jaws 22 can be ensured to clamp the battery cells by simultaneously screwing the fastening nuts 24 on the two sides. In order to facilitate manual operation of the clamp, a handle 25 is provided at the center of the adjusting rod 23.
The assembly process of the battery pack of the invention: the side wall 2 and the bottom plate 1 are firstly pre-fixed together through a fastener, at the moment, the longitudinal fixing plate 18 supports the longitudinal connecting plate 6, the fixing hole 20 and the bottom plate connecting hole 16 are in a coaxial state, and then a battery monomer can be installed. When installing the battery monomer, pile up into one row with battery monomer 4 earlier, later adjust the distance between two clamping jaws 22, make the distance between two clamping jaws 22 be greater than battery monomer 4 when arranging in a row holistic length, then place two clamping jaws 22 in the both sides of battery monomer 4 of head end and terminal, twist soon fastening nut 24, fastening nut 24 pushes away two clamping jaws 22 and is close to each other, until pressing from both sides the tight battery monomer in a row, the clamping jaw extrudes the battery monomer when pressing from both sides tight battery monomer and make it warp. When the weight of the battery monomer 4 is lighter, the battery monomer in the row can be placed into the battery installation chamber 10 directly through the manual handle 25, after the battery monomer is placed into the battery installation chamber, the clamping jaws are removed, and the larger surfaces corresponding to the battery monomers 4 at the head end and the tail end are attached to the longitudinal connecting plate 6 and are tightly squeezed by utilizing the self resilience of each battery monomer. The structure that the utilization was paintd on bottom plate 1 in advance is glued, puts into the free in-process of battery, pushes down battery monomer 4 to the thick position of required gluey and carries out drying process, makes battery monomer 4 firm with bottom plate 1 bonds. After the structural adhesive is cured, the structural adhesive is filled in gaps between the head and tail battery monomers 4 and the longitudinal connecting plates 6 and gaps between the side faces of the battery monomers 4 and the transverse side walls 12, so that the battery monomers 4 are bonded with the side walls 2 in all directions, and the installation of the battery monomers is further realized. After the battery monomer 4 is fixedly installed, the screw rod correspondingly penetrates into the bottom plate connecting hole 16 and is in threaded fit with the fixing hole 19, the longitudinal fixing plate 18 is fixedly connected with the longitudinal connecting plate 6, at the moment, the position of the side frame 22 is relatively determined, correspondingly, the high-voltage connector 20 and the low-voltage connector 21 can be installed on the side wall 2, and high-voltage and low-voltage wiring harnesses, aluminum bars and copper-aluminum bars can be installed. After installation, the cover plate 3, the side walls 2 and the bottom plate 1 are integrally assembled together, so that the whole battery pack is assembled.
The utility model discloses a battery package is when assembling battery monomer, and accessible clamping jaw once only gets one row more battery monomer of quantity, then packs into it in the battery installation room, at the in-process of packing into, the clamping jaw can not collide with the vertical connection board and interfere, guarantees that battery monomer's stability is placed. Compared with the prior art, the installation efficiency of the battery monomer is greatly improved, and meanwhile, the installation efficiency of the battery pack is indirectly improved.
The utility model discloses an embodiment 2 of battery package:
this embodiment is different from embodiment 1 described above in that the length of the longitudinal connecting plate in this embodiment only satisfies the installation requirement of a row of battery cells, and this case is applicable to the case where the size of the battery pack is small or the size of the battery cells is large.
The utility model discloses an embodiment 3 of battery package:
this embodiment differs from embodiment 1 described above in that the longitudinal connecting plates in this embodiment are solid and the avoidance grooves are formed by open grooves machined in the longitudinal connecting plates. At this time, although the weight of the longitudinal connecting plates is increased, the strength of the longitudinal connecting plates is correspondingly increased.
The utility model discloses an embodiment 4 of battery package:
this embodiment is different from embodiment 1 described above in that, in this embodiment, the groove walls on both sides of the avoiding groove do not extend outward, and at this time, no extension section is formed, but the structure of the longitudinal connecting plate is simpler.
The utility model discloses an embodiment 5 of battery package:
the difference between this embodiment and embodiment 1 is that, in this embodiment, the distance between the groove walls on both sides of the avoiding groove is equal, and thus the embodiment can be applied to a fixture with a more regular structure, and can also play a certain role in guiding the fixture.
The utility model discloses an embodiment of battery package box:
the structure of the battery pack case is the same as that of the battery pack case in the above embodiment, and the description thereof is omitted.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. The battery package box includes:
the battery installation chamber comprises a side wall and a bottom wall, the battery installation chamber is used for installing single batteries, and the side wall of the battery installation chamber, which corresponds to the larger surface of the single batteries to be installed, is an end wall;
it is characterized in that the preparation method is characterized in that,
and the end wall is provided with an avoiding groove which is used for avoiding a clamping jaw for clamping a battery monomer to be installed.
2. The battery pack case according to claim 1, wherein the end wall has a length that meets the mounting requirements of at least two battery cells, and the end wall is provided with the avoiding groove at least at a position corresponding to the position where the battery cell is mounted.
3. The battery pack case of claim 1, wherein the end wall comprises an inner wall and an outer wall with a hollow cavity therebetween, and the relief groove is formed by a depression in the inner wall.
4. The battery pack case according to claim 3, wherein the groove walls of the avoidance groove extend outward to the outer wall.
5. The battery pack case according to any one of claims 1 to 4, wherein the distance between the side walls of the avoidance groove gradually increases from the bottom of the avoidance groove to the notch of the avoidance groove.
6. The battery pack comprises a battery pack box body and a battery monomer,
the battery pack box body is provided with a battery installation chamber, the battery installation chamber comprises a side wall and a bottom wall, the battery installation chamber is used for installing single batteries, and the side wall of the battery installation chamber, which corresponds to the larger surface of the single batteries to be installed, is an end wall;
it is characterized in that the preparation method is characterized in that,
and the end wall is provided with an avoiding groove which is used for avoiding a clamping jaw for clamping a battery monomer to be installed.
7. The battery pack of claim 6, wherein the end wall has a length that meets the mounting requirements of at least two battery cells, and the end wall is provided with the avoiding groove at least at a position corresponding to the mounting position of the battery cell.
8. The battery pack of claim 6, wherein the end wall comprises an inner wall and an outer wall with a hollow cavity therebetween, and the relief groove is formed by a depression in the inner wall.
9. The battery pack of claim 8, wherein the groove walls on both sides of the escape groove extend outward to the outer wall.
10. The battery pack according to any one of claims 6 to 9, wherein the distance between the groove walls on both sides of the avoidance groove gradually increases from the groove bottom of the avoidance groove to the notch of the avoidance groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095349.9U CN211428236U (en) | 2020-01-16 | 2020-01-16 | Battery pack and box body thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020095349.9U CN211428236U (en) | 2020-01-16 | 2020-01-16 | Battery pack and box body thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211428236U true CN211428236U (en) | 2020-09-04 |
Family
ID=72253874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020095349.9U Active CN211428236U (en) | 2020-01-16 | 2020-01-16 | Battery pack and box body thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211428236U (en) |
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2020
- 2020-01-16 CN CN202020095349.9U patent/CN211428236U/en active Active
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| CB03 | Change of inventor or designer information |
Inventor after: Luo Chao Inventor after: Chen Yuwei Inventor after: Liu Hanxiang Inventor after: Lu Chenzhi Inventor after: Wang Yanan Inventor after: Jin Xin Inventor after: Zhang Hongtao Inventor before: Luo Chao Inventor before: Chen Yuwei Inventor before: Liu Hanxiang Inventor before: Lu Chenzhi Inventor before: Wang Yanan Inventor before: Jin Xin Inventor before: Zhang Hongtao |