CN216311975U - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN216311975U CN216311975U CN202123008740.4U CN202123008740U CN216311975U CN 216311975 U CN216311975 U CN 216311975U CN 202123008740 U CN202123008740 U CN 202123008740U CN 216311975 U CN216311975 U CN 216311975U
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- mounting beam
- mounting
- end plate
- connecting hole
- battery pack
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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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a battery pack which comprises a shell and at least one battery unit, wherein at least one mounting area is arranged on a bottom plate of the shell, a first mounting beam and a second mounting beam which are opposite and arranged at an interval are mounted in the mounting area, a first connecting hole is formed in the first mounting beam, and a first clamping part is formed in the second mounting beam; the battery unit is arranged in the mounting area and comprises a first end plate and a second end plate, a second connecting hole is formed in the first end plate, and a second clamping part is formed in the second end plate; under the state that first block portion and second block portion joint, first connecting hole and second connecting hole correspond the intercommunication, and a mounting is worn to locate in first connecting hole and the second connecting hole that correspond the intercommunication. The battery pack not only enables the battery unit to be smoothly arranged in the shell with compact internal space, but also simplifies the installation operation process of the battery unit and ensures the connection reliability between the battery unit and the shell.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack.
Background
In the battery pack, the battery cells are usually fixed by bolts, that is, bolt mounting holes are formed in both end plates of the battery cells and are fastened to the housing by bolts, but in the case that the overall structure of the battery pack is compact, the mounting space for the bolts of the battery cells is short, and the battery cells are inconvenient to mount.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery pack which can smoothly install battery units under the condition that the overall structure of the battery pack is relatively compact.
To achieve the above object, the present invention provides a battery pack, including:
the mounting structure comprises a shell, a first mounting beam and a second mounting beam, wherein at least one mounting area is arranged on a bottom plate of the shell, the first mounting beam and the second mounting beam are arranged in the mounting area and are opposite and spaced, a first connecting hole is formed in the top surface of the first mounting beam, and a first clamping part is arranged on the surface, facing the first mounting beam, of the second mounting beam;
the battery unit is arranged in the mounting area and comprises a first end plate arranged close to the first mounting beam and a second end plate arranged close to the second mounting beam, a second connecting hole is formed in the first end plate, and a second clamping part capable of being in clamping fit with the first clamping part is arranged on the second end plate;
under the state that the first clamping part is clamped with the second clamping part, the first connecting hole is correspondingly communicated with the second connecting hole, and a fixing piece penetrates through the first connecting hole and the second connecting hole which are correspondingly communicated.
Compared with the prior art, the technical scheme has the following advantages:
according to the battery pack, the second end plate is fixedly connected with the second mounting beam through the clamping matching of the first clamping part and the second clamping part, the first connecting hole and the second connecting hole which are correspondingly communicated are arranged in a penetrating manner through the fixing piece, and the first end plate is fixedly connected with the first mounting beam, so that the fixed connection between the battery unit and the shell is realized, the using amount of the fixing piece (bolt) is greatly reduced, the problem that the installation of the battery unit is inconvenient due to the lack of the installation space of the bolt for the battery unit when the internal space of the shell is compact is solved, the battery unit can be smoothly installed in the shell with the compact internal space, the installation operation process of the battery unit is simplified, and the reliability of the connection between the battery unit and the shell is also ensured.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:
fig. 1 is a schematic structural view of a battery pack according to the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged view of the portion B of FIG. 2;
FIG. 4 is an enlarged view of the portion C of FIG. 2;
fig. 5 is a schematic structural view of a battery cell in the battery pack shown in fig. 1;
FIG. 6 is an enlarged, fragmentary, schematic view of one configuration of the second mounting beam in use;
fig. 7 is a partially enlarged structural view showing a use state of another structure of the second mounting beam.
The reference numbers illustrate:
10. a housing; 11. a base plate; 111. an installation area; 12. a first mounting beam; 121. a first connection hole; 13. a second mounting beam; 131. a first engaging portion; 132. a third engaging portion; 133. a third connection hole; 14. a bevel;
20. a battery cell; 21. a first end plate; 211. a lap plate; 2111. a second connection hole; 22. a second end plate; 221. a second engaging portion;
30. a fixing member;
40. and (6) bonding the adhesive layer.
Detailed Description
The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 2, the present invention provides a battery pack including a case 10 and at least one battery cell 20, wherein:
the bottom plate 11 of the housing 10 is provided with at least one mounting area 111, the specific number of the mounting areas 111 can be set according to the number of the battery units 20 to be actually mounted, preferably, one battery unit 20 is mounted in one mounting area 111, of course, two or three battery units 20 arranged side by side can also be mounted in one mounting area 111, the mounting areas 111 are mounted with the first mounting beam 12 and the second mounting beam 13 arranged oppositely and at an interval, preferably, the first mounting beam 12 and the second mounting beam 13 are respectively arranged at two oppositely arranged edges of the mounting area 111, exemplarily, the first mounting beam 12 and the second mounting beam 13 can be welded with the bottom plate 11, and can also be connected with the bottom plate 11 by bolts, as shown in fig. 3, the top surface of the first mounting beam 12 is provided with the first connection holes 121, and the number of the first connection holes 121 can be set according to the actual use requirement, if a plurality of first connection holes 121 are provided, preferably, the plurality of first connection holes 121 are uniformly distributed on the top surface of the first mounting beam 12 to ensure the use strength of the first mounting beam 12, as shown in fig. 2 and 4, the surface of the second mounting beam 13 facing the first mounting beam 12 is provided with a first engaging portion 131, that is, the first engaging portion 131 is located inside the mounting region 111;
as shown in fig. 1 and 5, the battery unit 20 may be composed of one battery cell or a plurality of battery cells connected in series by a bus bar, the battery unit 20 is disposed in the mounting region 111, the battery unit 20 includes a first end plate 21 disposed adjacent to the first mounting beam 12 and a second end plate 22 disposed adjacent to the second mounting beam 13, the first end plate 21 and the second end plate 22 are used for fixing the battery unit 20 and the housing 10, as shown in fig. 3, the first end plate 21 is provided with second connecting holes 2111, preferably, the number of the second connecting holes 2111 is equal to the number of the first connecting holes 121, of course, the number of the second connecting holes 2111 may also be different from the number of the first connecting holes 121, as shown in fig. 4, the second end plate 22 is provided with second engaging portions 221 capable of engaging with the first engaging portions 131, that is, the first engaging portions 131 and the second engaging portions 221 are capable of engaging with each other, to fixedly connect the second end plate 22 with the second mounting beam 13;
as shown in fig. 2, 3 and 4, in a state where the first engaging portion 131 is engaged with the second engaging portion 221, the first connecting hole 121 is correspondingly communicated with the second connecting hole 2111, that is, the first engaging portion 131 is engaged with the second engaging portion 221, so that the second end plate 22 can be fixedly connected with the second mounting beam 13, and the corresponding communication between the first connecting hole 121 and the second connecting hole 2111 can be positioned, and the fixing member 30 is inserted into the correspondingly communicated first connecting hole 121 and second connecting hole 2111 to fixedly connect the first end plate 21 with the first mounting beam 12, thereby stably limiting the battery unit 20 in the mounting region 111.
It should be noted that, when the top surface of the first mounting beam 12 is provided with a plurality of first connection holes 121 and the first end plate 21 is provided with a plurality of second connection holes 2111, in a state where the first engaging portion 131 is engaged with the second engaging portion 221, at least one of the first connection holes 121 is correspondingly communicated with at least one of the second connection holes 2111, and preferably, each of the first connection holes 121 is correspondingly communicated with each of the second connection holes 2111.
According to the battery pack, the second end plate 22 is fixedly connected with the second mounting beam 13 through the clamping matching of the first clamping part 131 and the second clamping part 221, the first connecting hole 121 and the second connecting hole 2111 which are correspondingly communicated are formed in the penetrating way of the fixing piece 30, and the first end plate 21 is fixedly connected with the first mounting beam 12, so that the battery unit 20 is fixedly connected with the shell 10, the using amount of the fixing piece 30 (bolt) is greatly reduced, the problem that the installation of the battery unit 20 is inconvenient due to the lack of the installation space of the bolt for the battery unit 20 when the internal space of the shell 10 is compact is solved, the battery unit 20 can be smoothly installed in the shell 10 with the compact internal space, the installation operation process of the battery unit 20 is simplified, and the connection reliability between the battery unit 20 and the shell 10 is ensured.
Further, the first connection hole 121 and the second connection hole 2111 are threaded holes, the fixing member 30 is a bolt, the bolt is simply and conveniently matched with the threaded holes, and is not easy to loosen, so that the reliability of connection between the battery unit 20 and the housing 10 is effectively ensured.
Of course, the first connection hole 121 and the second connection hole 2111 may be through holes, and in this case, the fixing member 30 is a fixing pin, and the first end plate 21 is fixedly connected to the first mounting beam 12 by interference fit of the fixing pin with the first connection hole 121 and the second connection hole 2111.
Further, as shown in fig. 4, the first engaging portion 131 is a groove disposed on the second mounting beam 13, and the second engaging portion 221 is a rib disposed on the second end plate 22;
alternatively, the first engaging portion 131 is a rib disposed on the second mounting beam 13, and the second engaging portion 221 is a groove disposed on the second end plate 22;
the groove and the rib are simple in structure and easy to machine and manufacture, the processing difficulty of the battery pack cannot be increased, and the clamping matching operation between the groove and the rib is simple and convenient and easy to realize, so that the second end plate 22 and the second mounting beam 13 are fixedly connected and the operation is simple and convenient.
Still further, as shown in fig. 4, the side wall of the groove adjacent to the bottom plate 11 is a slope 14 inclined towards the bottom plate 11, and the slope 14 can guide the rib to be inserted into the groove, so that the rib can be inserted into the groove more smoothly.
Further, as shown in fig. 6, a surface of the second mounting beam 13 facing the first mounting beam 12 is provided with a bonding glue layer 40, specifically, the bonding glue layer 40 may be formed by pre-coating the bonding glue in the groove and overflowing the glue through a squeezing action after the matching, and the bonding glue layer 40 may increase the reliability of the connection between the second mounting beam 13 and the second end plate 22.
Still further, the bonding glue film 40 is the structure glue film, and the structure glue film adopts the structure to glue and makes, and the structure is glued to have intensity height, can bear great load, and ageing-resistant, fatigue-resistant, corrosion-resistant, advantage stable performance in the life expectancy, can effectively guarantee the life of bonding glue film.
Of course, the adhesive layer 40 can also be made of any other adhesive with adhesive effect, such as adhesive glue or glue, and will not be described herein again.
In one embodiment of the present invention, as shown in fig. 3, the first end plate 21 is provided with a bridging plate 211, specifically, the bridging plate 211 is disposed perpendicular to the first end plate 21 and parallel to the bottom plate 11, the bridging plate 211 is configured to bridge the top surface of the first mounting beam 12, the second connection hole 2111 is disposed on the bridging plate 211, that is, the distance between the bridging plate 211 and the bottom plate 11 is greater than the distance between the top surface of the first mounting beam 12 and the bottom plate 11, and the bridging plate 211 can reciprocate on the first mounting beam 12 so as to correspondingly communicate the first connection hole 121 and the second connection hole 2111, and the disposition of the bridging plate 211 makes the connection between the first end plate 21 and the first mounting beam 12 more convenient.
Of course, the first end plate 21 may be an inverted L-shaped plate.
Further, as shown in fig. 2, the distance between the first mounting beam 12 and the second mounting beam 13 is greater than the distance between the first end plate 21 and the second end plate 22, so as to avoid interference between the first engaging portion 131 and the second engaging portion 221 when the battery unit 20 is mounted, thereby making the mounting of the battery unit 20 simpler and more convenient, and after the first engaging portion 131 is engaged with the second engaging portion 221, a gap is formed between the first mounting beam 12 and the first end plate 21, and the formed gap can be used as a reserved space for battery expansion of the battery unit 20.
In one embodiment of the present invention, it is considered that when a plurality of mounting regions 111 are required to be provided in the housing 10, and the inner space of the housing 10 is limited, the first mounting beam 12 and the second mounting beam 13 of two adjacent mounting areas 111 can be combined into one second mounting beam, i.e. the function of the first mounting beam 12 and the second mounting beam 13 is realized by one second mounting beam 13, specifically, as shown in fig. 6, the top surface of the second mounting beam 13 is provided with a third connection hole 133, the third connection hole 133 is located at a side away from the first mounting beam 12, the third connection hole 133 is configured to be in corresponding communication with the second connection hole 2111 of one battery cell 20, that is, the third connection hole 133 can be in corresponding communication with the second connection hole 2111 of the battery cell 20 in the adjacent mounting region 111, to be fixedly connected with the first end plate 21 of the battery unit 20 in the adjacent mounting region 111, thereby achieving the purpose of fixing two battery units 20 by a second mounting beam 13.
In another embodiment of the present invention, considering that when a plurality of mounting regions 111 are required to be disposed in the housing 10 and the internal space of the housing 10 is limited, two battery units 20 of two adjacent mounting regions 111 may be simultaneously fixed by using one second mounting beam 13, specifically, as shown in fig. 7, a surface of the second mounting beam 13 facing away from the first mounting beam 12 is provided with a third engaging portion 132, that is, the first engaging portion 131 and the third engaging portion 132 are respectively disposed on two sides of the second mounting beam 13, and the third engaging portion 132 is configured to be in snap-fit with the second engaging portion 221 of one battery unit 20, that is, the third engaging portion 132 can be in snap-fit with the second engaging portion 221 of the battery unit 20 in the adjacent mounting region 111, so as to achieve the purpose of fixing two battery units 20 by using one second mounting beam 13.
In the actual assembly, an appropriate structure of the second mounting beam 13 (i.e., the second mounting beam 13 shown in fig. 4, 6, or 7) may be selected as needed.
The assembly process of the battery pack of the present invention is specifically described below with reference to the accompanying drawings:
as shown in fig. 1 to 4, the battery unit 20 is correspondingly inserted into the mounting region 111, since the distance between the first mounting beam 12 and the second mounting beam 13 is greater than the distance between the first end plate 21 and the second end plate 22, the battery unit 20 can be smoothly inserted between the first mounting beam 12 and the second mounting beam 13, and then the battery unit 20 is pushed toward the second cross beam, so that the rib is inserted into the groove, i.e. the snap-fit of the first engaging portion 131 and the second engaging portion 221 is completed, in this process, the bridging plate 211 is translated on the top surface of the first mounting beam 12, after the rib is completely inserted into the groove, the second threaded hole is correspondingly communicated with the first threaded hole, and the bolt is screwed into the correspondingly communicated second threaded hole and the first threaded hole, so that the mounting of the battery unit 20 can be completed.
In the present invention, the first mounting beam 12 and the second mounting beam 13 may be a cross beam, a longitudinal beam, or a side beam provided in the housing 10.
In summary, in the battery pack of the present invention, the second end plate is fixedly connected to the second mounting beam by the snap-fit of the first engaging portion and the second engaging portion, and the first connecting hole and the second connecting hole, which are correspondingly communicated with each other, are penetrated through the fixing member, so that the first end plate is fixedly connected to the first mounting beam, thereby realizing the fixed connection between the battery unit and the housing, and greatly reducing the usage amount of the fixing member (bolt), which not only solves the problem that the installation of the battery unit is inconvenient due to the lack of the installation space for the bolt of the battery unit when the internal space of the housing is compact, but also simplifies the installation operation procedure of the battery unit, and further ensures the reliability of the connection between the battery unit and the housing;
according to the battery pack, the distance between the first mounting beam and the second mounting beam is larger than the distance between the first end plate and the second end plate, so that when the battery unit is mounted, interference cannot be generated between the first clamping part and the second clamping part, and therefore the battery unit is mounted more simply and conveniently;
according to the battery pack, the adhesive layer is arranged on the second mounting beam, so that the connection reliability between the second mounting beam and the second end plate is improved.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on operational states of the present application, and are only used for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is to be noted that the terms "mounted" and "connected" are to be construed broadly and mean "plurality" two or more unless expressly stated or limited otherwise. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application has been described above with reference to preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.
Claims (10)
1. A battery pack, comprising:
the mounting structure comprises a shell, a first mounting beam and a second mounting beam, wherein at least one mounting area is arranged on a bottom plate of the shell, the first mounting beam and the second mounting beam are arranged in the mounting area and are opposite and spaced, a first connecting hole is formed in the top surface of the first mounting beam, and a first clamping part is arranged on the surface, facing the first mounting beam, of the second mounting beam;
the battery unit is arranged in the mounting area and comprises a first end plate arranged close to the first mounting beam and a second end plate arranged close to the second mounting beam, a second connecting hole is formed in the first end plate, and a second clamping part capable of being in clamping fit with the first clamping part is arranged on the second end plate;
under the state that the first clamping part is clamped with the second clamping part, the first connecting hole is correspondingly communicated with the second connecting hole, and a fixing piece penetrates through the first connecting hole and the second connecting hole which are correspondingly communicated.
2. The battery pack according to claim 1,
the first end plate is provided with a lap plate, the lap plate is configured to be lapped on the top surface of the first mounting beam, and the second connecting hole is formed in the lap plate.
3. The battery pack according to claim 2,
the distance between the first mounting beam and the second mounting beam is greater than the distance between the first end plate and the second end plate.
4. The battery pack according to claim 1,
the first clamping portion is a groove formed in the second mounting beam, the second clamping portion is a rib formed in the second end plate, or the first clamping portion is a rib formed in the second mounting beam, and the second clamping portion is a groove formed in the second end plate.
5. The battery pack according to claim 4,
the side wall of the groove adjacent to the bottom plate is a slope inclined towards the bottom plate.
6. The battery pack according to claim 1,
and a bonding glue layer is arranged on the surface of the second mounting beam facing the first mounting beam.
7. The battery pack according to claim 6,
the bonding glue layer is a structure glue layer.
8. The battery pack according to claim 1,
the top surface of the second mounting beam is provided with a third connecting hole which is configured to be correspondingly communicated with the second connecting hole of one battery unit.
9. The battery pack according to claim 1,
and a third clamping part is arranged on the surface of the second mounting beam, which faces away from the first mounting beam, and the third clamping part is configured to be in clamping fit with the second clamping part of the battery unit.
10. The battery pack according to any one of claims 1 to 9,
the first connecting hole and the second connecting hole are threaded holes, and the fixing piece is a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123008740.4U CN216311975U (en) | 2021-12-02 | 2021-12-02 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123008740.4U CN216311975U (en) | 2021-12-02 | 2021-12-02 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216311975U true CN216311975U (en) | 2022-04-15 |
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ID=81082501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123008740.4U Active CN216311975U (en) | 2021-12-02 | 2021-12-02 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216311975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784437A (en) * | 2022-04-22 | 2022-07-22 | 远景动力技术(江苏)有限公司 | Battery pack and assembling method thereof |
-
2021
- 2021-12-02 CN CN202123008740.4U patent/CN216311975U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114784437A (en) * | 2022-04-22 | 2022-07-22 | 远景动力技术(江苏)有限公司 | Battery pack and assembling method thereof |
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