CN219832787U - Battery pack and electric equipment - Google Patents
Battery pack and electric equipment Download PDFInfo
- Publication number
- CN219832787U CN219832787U CN202321120669.5U CN202321120669U CN219832787U CN 219832787 U CN219832787 U CN 219832787U CN 202321120669 U CN202321120669 U CN 202321120669U CN 219832787 U CN219832787 U CN 219832787U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- heat exchange
- frame
- groove
- grooves
- 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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Links
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005728 strengthening Methods 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)
- Secondary Cells (AREA)
Abstract
The utility model discloses a battery pack and electric equipment, the battery pack comprises: the frame is of an annular structure, and a groove is formed in the inner side of the frame; at least two rows of battery packs arranged side by side; the heat exchange plates are arranged between two adjacent rows of battery packs, the extending direction of the heat exchange plates is the same as that of the grooves, and the end parts of the extending direction of the heat exchange plates are arranged in the grooves and fixedly connected with the grooves. According to the battery pack disclosed by the utility model, the grooves are formed in the frame so as to be fixedly connected with the end parts of the heat exchange plates, and the contact area between the end parts of the heat exchange plates and the frame is increased by the grooves, so that the fixing strength of the heat exchange plates in the battery pack is improved, the occurrence of connection failure is avoided, and the safety of the battery pack is further ensured. The safety of the battery pack is improved due to the improvement of the fixing strength of the heat exchange plates in the battery pack, and when the battery pack is used in electric equipment, the safety of the electric equipment is improved accordingly, so that safety accidents are avoided.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery pack and electric equipment.
Background
With the development and progress of technology, electric vehicles are increasingly used. A battery pack is provided in an electric vehicle for storing electric energy and supplying the electric vehicle with energy. The battery pack generally comprises a box body and a plurality of battery packs arranged in the box body, wherein a liquid cooling plate is arranged between every two adjacent battery packs, so that the battery packs are cooled through the liquid cooling plate, more heat generated in the charging and discharging processes of the battery is avoided, the internal temperature of the battery pack is too high, and thermal runaway occurs.
The liquid cooling board is fixed in the box through the joint, but current joint fixed strength is lower, takes place to connect the inefficacy very easily, leads to the box internal connection strength to reduce, and then causes the incident.
Disclosure of Invention
In order to solve the above-mentioned drawbacks in the prior art, an object of the present utility model is to provide a battery pack, so as to improve the fixing strength of the connector and ensure the safety of the battery pack.
In order to solve the above-mentioned defect of the prior art, the second purpose of the utility model is to provide an electric equipment, which has the characteristic of high security.
According to one of the purposes of the utility model, the technical scheme is as follows:
a battery pack, comprising:
the frame is of an annular structure, and a groove is formed in the inner side of the frame;
at least two rows of battery packs arranged side by side;
the heat exchange plates are arranged between two adjacent rows of battery packs, the extending direction of the heat exchange plates is the same as that of the grooves, and the end parts of the extending direction of the heat exchange plates are arranged in the grooves and fixedly connected with the grooves.
According to the battery pack disclosed by the utility model, the grooves are formed in the frame so as to be fixedly connected with the end parts of the heat exchange plates, and the contact area between the end parts of the heat exchange plates and the frame is increased by the grooves, so that the fixing strength of the heat exchange plates in the battery pack is improved, the occurrence of connection failure is avoided, and the safety of the battery pack is further ensured.
The technical scheme provided by the second purpose of the utility model is as follows:
an electric device comprises the battery pack.
The safety of the battery pack is improved due to the improvement of the fixing strength of the heat exchange plates in the battery pack, and when the battery pack is used in electric equipment, the safety of the electric equipment is improved accordingly, so that safety accidents are avoided.
Drawings
Fig. 1 is a schematic view showing a part of the structure of a battery pack according to an embodiment;
FIG. 2 is a schematic view of the structure of the frame, the support, the joint and the heat exchange plate according to the embodiment;
fig. 3 is an enlarged view at a in fig. 2.
Wherein the reference numerals have the following meanings:
1. a frame; 11. a first end beam; 12. a second end beam; 13. a first side member; 14. a second side member; 15. a cross beam; 16. a groove; 2. a joint; 3. a support part; 4. a battery pack; 5. and a heat exchange plate.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.
In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
The embodiment provides a battery pack, referring to fig. 1, including a frame 1 with an annular structure, wherein an area surrounded by the annular frame 1 is taken as an inner side, an area not surrounded by the annular frame 1 is taken as an outer side, referring to fig. 1, a plurality of rows of battery packs 4 are arranged in the battery pack, and the plurality of rows of battery packs 4 are arranged in the frame 1. The multiple battery packs 4 are arranged side by side, and the extending directions are the same, the extending directions of the battery packs 4 in each row are used as the first direction, each battery pack 4 in each row comprises multiple single batteries which are sequentially arranged along the first direction, and the single batteries can be square batteries or cylindrical batteries which are common in the prior art.
Referring to fig. 1, in this embodiment, the unit cells are illustrated as cylindrical cells, and as the name of the unit cells, the cylindrical cells are cylindrical, and the sides of the unit cells are arc-shaped, and when the unit cells are cylindrical cells, the battery packs 4 in each row are staggered, i.e. the adjacent two battery packs 4 in each row are staggered, and the two battery packs 4 arranged at intervals of one battery pack 4 are arranged side by side. For example, the direction in which the plurality of battery packs 4 are arranged is taken as the second direction, the first battery pack 4 and the third battery pack 4 are arranged side by side, that is, the cylindrical batteries in the two battery packs 4 are flush along the second direction, the first battery pack 4 and the second battery pack 4 are arranged in a staggered manner, that is, the cylindrical batteries in the first battery pack 4 and the cylindrical batteries in the second battery pack 4 are arranged in a staggered manner along the second direction.
In order to ensure the working efficiency of the cylindrical battery in the battery pack, it is generally necessary to ensure that the cylindrical battery is at a proper temperature, therefore, referring to fig. 1 and 2, a heat exchange plate 5 is disposed between two adjacent rows of battery packs 4, and the extending direction of the heat exchange plate 5 is the same as that of the battery packs 4 so as to perform heat exchange on the cylindrical battery. Since the opposite side portions of the heat exchange plate 5 in the second direction are disposed close to or attached to the cylindrical battery, the side portions of the heat exchange plate 5 are arc-shaped structures adapted to the side surfaces of the cylindrical battery.
The heat exchange plate 5 may be a liquid cooling plate or a liquid heating plate. For example, when the battery pack is in a low temperature environment, a hydro-thermal plate is required to heat the cylindrical battery in order to secure the working efficiency of the battery pack. When the battery pack is in normal temperature environment, the cylindrical battery can generate heat in the charging and discharging process, the thermal runaway of the cylindrical battery can be caused by heat accumulation, and in order to avoid the occurrence of the situation, the cylindrical battery needs to be cooled by the liquid cooling plate. When the battery pack is in a high-temperature environment, the cylindrical battery has higher heat, and heat can be generated in the charging and discharging processes, the accumulation of the heat is easy to cause thermal runaway of the cylindrical battery, and in order to avoid the occurrence of the situation, the liquid cooling plate is required to cool the cylindrical battery.
When the heat exchange plate 5 exchanges heat with the cylindrical battery, external heat exchange water is needed to be communicated, when the heat exchange plate 5 is a liquid cooling plate, the heat exchange water is cooling water, and when the heat exchange plate 5 is a liquid heating plate, the heat exchange water is heating water. When the heat exchange plate 5 is arranged in the battery pack, the end part of the extending direction of the heat exchange plate 5 is fixedly arranged in the battery pack, and particularly, the end part of the extending direction of the heat exchange plate 5 is provided with the connector 2, and the connector 2 is fixedly arranged in the battery pack. However, the conventional connector 2 has low fixing strength in the battery pack, and connection failure is liable to occur, so that the connection strength of the heat exchange plate 5 in the battery pack is reduced, thereby causing a safety accident. In order to solve the problem, referring to fig. 3, a groove 16 is formed on the inner side of the frame 1 in the embodiment, specifically, the groove 16 is formed on the frame 1 corresponding to the extending direction of the heat exchange plate 5, the number of grooves 16, the number of joints 2 and the number of heat exchange plates 5 are equal, the positions of the three are in one-to-one correspondence, the notches of the grooves 16 face the corresponding joints 2, the joints 2 are arranged in the corresponding grooves 16, and the joints 2 are fixedly connected with the grooves 16. In the battery pack of the embodiment, the groove 16 is formed in the frame 1 to be fixedly connected with the end part of the heat exchange plate 5, and the contact area between the end part of the heat exchange plate 5 and the frame 1 is increased due to the arrangement of the groove 16, so that the fixing strength of the heat exchange plate 1 in the battery pack is improved, the occurrence of connection failure is avoided, and the safety of the battery pack is further ensured.
In one embodiment, the joint 2 and the groove 16 are welded and fixed, so as to ensure the connection strength of the joint 2 and the groove 16, and further improve the connection strength of the heat exchange plate 5 in the battery pack.
In addition, the joint 2 and the groove 16 in the embodiment can be adhered and fixed, and the joint 2 and the groove 16 are adhered by arranging pouring sealant between them. The bonding connection mode increases the connection area between the joint 2 and the groove 16, and further improves the connection strength between the joint 2 and the groove 16.
And, the coefficient of heat conductivity of the pouring sealant between the joint 2 and the groove 16 is not more than 0.2W/(m.times.k), and the lower coefficient of heat conductivity can avoid heat transfer between the heat exchange plate 5 and the frame 1, so that the overall temperature of the heat exchange plate 5 is ensured to be balanced, and the heat exchange of the battery pack 4 is better carried out.
Specifically, referring to fig. 1 and 2, the frame 1 includes a first end beam 11 and a second end beam 12 disposed at opposite intervals, and a first side beam 13 and a second side beam 14 disposed at opposite intervals, and the first end beam 11, the first side beam 13, the second end beam 12, and the second side beam 14 are connected end to end in order to form the annular frame 1. Referring to fig. 2 and 3, two ends of the heat exchange plate 5 are respectively corresponding to the first end beam 11 and the second end beam 12, and the joint 2 is disposed at the end of the heat exchange plate 5 corresponding to the first end beam 11, so that a groove 16 is formed on the inner side of the first end beam 11, i.e. the side facing the second end beam 12, so that the joint 2 can be disposed in the groove 16 and adhesively fixed.
Further, the inner side of the first end beam 11, i.e. the side facing the second end beam 12, is provided with a cross beam 15, the extending direction of the cross beam 15 is parallel to the side of the first end beam 11 facing the second end beam 12, i.e. the cross beam 15 extends in the second direction, and the side of the cross beam 15 facing the second end beam 12 is provided with a groove 16. The arrangement of the cross beam 15 is beneficial to strengthening the structural strength of the battery pack, and on the basis, the groove 16 is arranged on the cross beam 15, so that the fixing strength of the connector 2 is further improved.
In addition, referring to fig. 3, the battery pack further includes a supporting portion 3, where the supporting portion 3 is disposed at the bottom of the frame 1 and surrounded by the frame 1, and the peripheral side of the supporting portion 3 is fixedly connected with the inner side of the frame 1, so as to form a box structure of the battery pack. The battery packs 4 are arranged on the supporting part 3 and are surrounded by the frame 1, so that the battery packs 4 are supported and protected by the box body of the battery pack. In this embodiment, the supporting portion 3 may be a bottom plate of the battery pack, or may be a bracket for supporting the battery pack, and may be provided according to actual needs.
On this basis, the joint 2 and the supporting part 3 of this embodiment are fixed in an adhesive manner, so that the fixing strength of the joint 2 is further improved, the occurrence of connection failure is avoided, and the safety of the battery pack is further ensured.
In addition to the battery pack, the embodiment also provides electric equipment, which comprises the battery pack. The safety of the battery pack is improved due to the improvement of the fixing strength of the battery pack nipple 2, and when the battery pack is used in electric equipment, the safety of the electric equipment is improved accordingly, so that safety accidents are avoided.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (9)
1. A battery pack, comprising:
the frame is of an annular structure, and a groove is formed in the inner side of the frame;
at least two rows of battery packs arranged side by side;
the heat exchange plates are arranged between two adjacent rows of the battery packs, the extending direction of the heat exchange plates is the same as that of the grooves, and the end parts of the extending direction of the heat exchange plates are arranged in the grooves and fixedly connected with the grooves.
2. A battery pack according to claim 1, wherein: the frame comprises a first end beam, a second end beam, a first side beam and a second side beam, wherein the first end beam and the second end beam are arranged at intervals relatively, the first side beam and the second side beam are arranged at intervals relatively, and the first end beam, the first side beam, the second end beam and the second side beam are connected end to end in sequence to form the annular frame.
3. A battery pack according to claim 2, wherein: the groove is formed in one side, facing the second end beam, of the first end beam.
4. A battery pack according to claim 3, wherein: the first end beam is towards one side of the second end beam is provided with a cross beam, the extending direction of the cross beam is parallel to one side part of the first end beam towards the second end beam, and one side of the cross beam towards the second end beam is provided with the groove.
5. A battery pack according to claim 1, wherein: the battery pack further comprises a supporting part, the supporting part is arranged at the bottom of the frame and surrounded by the frame, the periphery of the supporting part is fixedly connected with the inner side of the frame, and the battery pack, the heat exchange plate and the grooves are all arranged on the supporting part.
6. A battery pack according to claim 1, wherein: the end part of the heat exchange plate arranged in the groove is welded with the groove.
7. A battery pack according to claim 1, wherein: the end part of the heat exchange plate arranged in the groove is connected with the groove in an adhesive mode.
8. A battery pack as claimed in claim 7, wherein: the heat conductivity coefficient of the bonding glue between the end part of the heat exchange plate arranged in the groove and the groove is not more than 0.2W/(m.times.k).
9. An electrical consumer, characterized in that: a battery pack comprising any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321120669.5U CN219832787U (en) | 2023-05-11 | 2023-05-11 | Battery pack and electric equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321120669.5U CN219832787U (en) | 2023-05-11 | 2023-05-11 | Battery pack and electric equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219832787U true CN219832787U (en) | 2023-10-13 |
Family
ID=88275730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321120669.5U Active CN219832787U (en) | 2023-05-11 | 2023-05-11 | Battery pack and electric equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219832787U (en) |
-
2023
- 2023-05-11 CN CN202321120669.5U patent/CN219832787U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |