CN220710569U - Battery packaging structure - Google Patents
Battery packaging structure Download PDFInfo
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- CN220710569U CN220710569U CN202321284306.5U CN202321284306U CN220710569U CN 220710569 U CN220710569 U CN 220710569U CN 202321284306 U CN202321284306 U CN 202321284306U CN 220710569 U CN220710569 U CN 220710569U
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- battery pack
- battery
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- box body
- connecting pieces
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
A battery packaging structure relates to the technical field of battery structures, and comprises: the box body is internally provided with a cavity; the box cover is used for opening and closing the box body; the square battery pack comprises a first battery pack and a second battery pack, wherein the first battery pack and the second battery pack comprise a plurality of battery cells, and the battery cells in the first battery pack and the second battery pack are distributed in a staggered manner; the positive and negative electrode connecting sheets are used for connecting the positive and negative electrodes of the two adjacent electric cores so as to realize the serial connection of the two adjacent electric cores; the connecting assembly is used for connecting the first battery pack and the second battery pack so as to enable the first battery pack and the second battery pack to be connected in series; and the BMS protection component is electrically connected with the square battery pack to realize protection of the charging and discharging processes of the square battery pack. By adopting the technical scheme, the packaging structure is simple, the assembly efficiency is improved, the wire-free connection with the battery pack is realized, the connection by using a connecting wire is not needed, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of battery structures, in particular to a battery packaging structure.
Background
In the battery group, the square battery cell has a plurality of advantages, such as low size standardization degree, and the capacity of the cell can be customized, so that the battery cells required by the same battery pack are greatly reduced, thus being beneficial to rapidly reducing the number and complexity of parts of the assembled battery pack, and realizing the purposes of reducing weight and improving energy density. And the square battery has the advantages of high packaging reliability, relatively light weight, high energy density, relatively simple structure and the like, and is the main stream of the current power battery.
In the related art, the square battery packaging structure mainly comprises a frame main body and a plurality of battery cells arranged in the frame main body, wherein a plurality of battery cell arrays are distributed in the frame main body and are connected through connecting wires to form a battery module for supplying power.
However, in the square battery packaging structure in the related art, a plurality of battery cells are required to be connected in series by connecting wires during assembly, so that the operation is complex, the assembly efficiency is low, and the production cost is increased.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, a plurality of battery cells are required to be connected in series by connecting wires during assembly, the operation is complex, the assembly efficiency is low, and the production cost is increased.
The technical scheme adopted by the utility model is as follows: a battery pack packaging structure comprising: the box body is internally provided with a cavity; the box cover is detachably connected to the box body and used for opening and closing the box body; the square battery pack is arranged in the box body and comprises a first battery pack and a second battery pack, the first battery pack and the second battery pack comprise a plurality of battery cells, and the battery cells in the first battery pack and the second battery pack are distributed in a dislocation mode, so that the positive electrodes and the negative electrodes of two adjacent battery cells in the first battery pack and the second battery pack are positioned on the same side; the positive and negative electrode connecting sheets are uniformly arranged on the first battery pack and the second battery pack and are used for connecting the positive and negative electrodes of two adjacent battery cells so as to realize the serial connection of the two adjacent battery cells; the connecting assembly is arranged between the first battery pack and the second battery pack and used for connecting the first battery pack and the second battery pack so as to enable the first battery pack and the second battery pack to be connected in series; and the BMS protection component is arranged in the box body and is electrically connected with the square battery pack so as to realize protection of the charging and discharging process of the square battery pack.
Preferably, the first battery pack and the second battery pack are arranged in a vertical distribution manner, the first battery pack is located above the second battery pack, and the positive electrode of the battery cell in the first battery pack faces the negative electrode of the battery cell in the second battery pack.
Preferably, the connection assembly comprises a first connection piece and a second connection piece which are respectively arranged at two sides of the first battery pack and the second battery pack, the first connection piece is used for connecting a negative electrode of a battery core in the first battery pack with a positive electrode of the battery core in the second battery pack, and the second connection piece is used for connecting a positive electrode of the battery core in the first battery pack with a negative electrode of the battery core in the second battery pack.
Preferably, the first connecting piece includes two first L type connection pieces and is used for two first L type connection pieces fixed connection's connecting plate, and two first L type connection pieces are connected respectively in the negative pole of electric core in the first group battery and the anodal of electric core in the second group battery, and the connecting plate is located two first L type connection pieces and deviates from one side of first group battery and second group battery, and the upper and lower both sides of connecting plate are fixed connection respectively in two first L type connection pieces.
Preferably, the second connecting piece includes two second L type connection pieces, and two second connection pieces are connected respectively in the positive pole of electric core in the first group battery and the negative pole of electric core in the second group battery, and two equal electric connection of second connection piece are in BMS protection component.
Preferably, the BMS protection component comprises a BMS main board arranged in the box body, a power supply interface arranged on the BMS main board and a communication interface arranged on the BMS main board, wherein the BMS is positioned on one side of the box body, the BMS main board is electrically connected with two second L-shaped connecting sheets, the power supply interface and the communication interface are electrically connected with the BMS main board, and one end of the power supply interface and one end of the communication interface, which is far away from the BMS main board, are all extended out of the box body.
Preferably, the BMS protection assembly further comprises a BMS cover plate arranged outside the box body, the BMS cover plate is fastened and fixed on one side of the box body, and a plurality of connection interfaces respectively used for being electrically connected with the power interface and the communication interface are arranged on one side of the BMS cover plate facing the box body.
Preferably, the number of the power interface and the communication interface is at least two.
After the technical scheme is adopted, the utility model has the beneficial effects that:
1. when the battery pack is assembled, firstly, the positive electrode and the negative electrode of two adjacent battery cells in the first battery pack and the second battery pack are connected through the positive electrode and negative electrode connecting sheets, so that the battery cells in the first battery pack and the second battery pack are connected in series without connecting wires, the first battery pack and the second battery pack are connected through the connecting assembly respectively, the first battery pack and the second battery pack are connected in series, the operation is simple and convenient, then the connected square battery pack is put into the box body, after the square battery pack is electrically connected with the BMS protection assembly, the box body is closed by the box cover, the assembly of the whole square battery pack is completed, the packaging structure is simple, the assembly efficiency is improved, meanwhile, the wire-free connection with the battery pack is realized, the connection with the connecting wires is not required, and the production cost is reduced;
2. this application realizes the line connection of exempting from with group battery through cooperation between BMS mainboard, power source, communication interface and the second L type connection piece, protects whole square group battery simultaneously, simple structure, has reduced manufacturing cost, and packaging structure is comparatively stable.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present embodiment;
FIG. 2 is a schematic diagram showing the mating relationship between a prismatic battery pack and a case;
FIG. 3 is a schematic diagram illustrating the mating relationship between a first battery pack and a second battery pack;
FIG. 4 is another view perspective illustration of FIG. 2;
fig. 5 is an enlarged view of a portion a in fig. 4.
Reference numerals illustrate: 1. a case; 11. a case cover; 2. a square battery pack; 21. a first battery pack; 22. a second battery pack; 23. a battery cell; 24. positive and negative electrode connecting pieces; 31. a first connector; 311. a first L-shaped connecting piece; 32. a second connector; 321. a second L-shaped connecting piece; 4. BMS protection components; 41. BMS main board; 42. a power interface; 43. a communication interface; 44. BMS cover plate; 45. and a connection interface.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and those skilled in the art can make modifications to the present embodiment which do not contribute to the utility model as required after reading the present specification, but are protected by the patent laws within the scope of the appended claims.
The embodiment relates to a battery package packaging structure, referring to fig. 1 and 2, the battery package packaging structure comprises a box body 1 and a box cover 11 detachably connected to the box body 1, wherein a cavity is formed in the box body 1, the box cover 11 is located at the top of the box body 1, and the box cover 11 can open and close the box body 1. In the specific implementation process, the case cover 11 can be detachably arranged on the case body 1 through the cooperation of the screw rod and the screw hole, and the case cover 11 can be detachably connected with the case body 1 through other connection modes.
Be provided with square group battery 2 in the box 1, square group battery 2 includes first group battery 21 and second group battery 22, and first group battery 21 and second group battery 22 are the upper and lower stack setting, and first group battery 21 is located the top of second group battery 22. The first battery pack 21 and the second battery pack 22 each comprise a plurality of battery cells 23, and the battery cells 23 in the first battery pack 21 and the second battery pack 22 are arranged in a staggered mode, so that the positive electrodes and the negative electrodes of two adjacent battery cells 23 in the first battery pack 21 and the second battery pack 22 are positioned on the same side.
Referring to fig. 2 and 3, a plurality of positive and negative connecting pieces 24 are further uniformly disposed on the first battery pack 21 and the second battery pack 22, and the plurality of positive and negative connecting pieces 24 are used for connecting the positive and negative poles of two adjacent battery cells 23 in the first battery pack 21 and the second battery pack 22, so that the two adjacent battery cells 23 are connected in series, and thus the plurality of battery cells 23 in the first battery pack 21 and the second battery pack 22 are connected in series. In this embodiment, the number of the battery cells 23 in the first battery pack 21 and the second battery pack 22 is eight, the number of the positive and negative electrode connecting pieces 24 on the first battery pack 21 and the second battery pack 22 is seven, and in other embodiments, the number of the battery cells 23 and the positive and negative electrode connecting pieces 24 can be correspondingly adjusted according to practical situations.
A connection assembly for connecting the first battery pack 21 and the second battery pack 22 is further provided between the first battery pack 21 and the second battery pack 22 so that the first battery pack 21 and the second battery pack 22 are connected in series.
Specifically, the connection assembly includes a first connection member 31 and a second connection member 32 respectively disposed on two sides of the first battery pack 21 and the second battery pack 22, the first connection member 31 is used for connecting the negative electrode of the battery cell 23 in the first battery pack 21 with the positive electrode of the battery cell 23 in the second battery pack 22, and the second connection member 32 is used for connecting the positive electrode of the battery cell 23 in the first battery pack 21 with the negative electrode of the battery cell 23 in the second battery pack 22.
Referring to fig. 2 and 3, the first connecting piece 31 includes two first L-shaped connecting pieces 311 and a connecting plate for fixing the two first L-shaped connecting pieces 311, the two first L-shaped connecting pieces 311 are symmetrically disposed, the two first L-shaped connecting pieces 311 are respectively connected to a negative electrode of the battery cell 23 in the first battery pack 21 and a positive electrode of the battery cell 23 in the second battery pack 22, the connecting plate is located at one side of the two first L-shaped connecting pieces 311 away from the first battery pack 21 and the second battery pack 22, and an upper side and a lower side of the connecting plate are respectively fixedly connected to the two first L-shaped connecting pieces 311. In a specific implementation process, the connecting plates can be fixedly connected to the side walls of the two first L-shaped connecting plates 311 in a welding manner, and can also be connected in a screwing manner.
The second connecting piece 32 includes two second L-shaped connecting pieces 321, the two second L-shaped connecting pieces 321 are oppositely arranged, and the two second L-shaped connecting pieces 321 are respectively connected to the positive electrode of the battery cell 23 in the first battery pack 21 and the negative electrode of the battery cell 23 in the second battery pack 22. In addition, when the first battery pack 21 and the second battery pack 22 are assembled by the positive and negative electrode connecting pieces 24, the first L-shaped connecting piece 311 and the second L-shaped connecting piece 321, a bracket (not shown in the drawings) may be provided between the first battery pack 21 and the second battery pack 22, and the first battery pack 21 and the second battery pack 22 may be fixed by the bracket, so that the overall shape of the first battery pack 21 and the second battery pack 22 is more stable, i.e., the prismatic battery pack 2 can be stably maintained in a stacked state up and down in the case 1.
Referring to fig. 4 and 5, a BMS protection assembly 4 is further disposed in the case 1, and the BMS protection assembly 4 is electrically connected with the prismatic battery pack 2, thereby protecting the charge and discharge processes of the prismatic battery pack 2. Specifically, the BMS protection assembly 4 includes a BMS motherboard 41 disposed in the case 1, a power interface 42 disposed on the BMS motherboard 41, and a communication interface 43 disposed on the BMS motherboard 41, where the BMS motherboard 41 is located on one side of the case 1 facing away from the first L-shaped connecting piece 311, and the BMS motherboard 41 is electrically connected to the two second L-shaped connecting pieces 321, the power interface 42 and the communication interface 43 are electrically connected to the BMS motherboard 41, the number of the power interfaces 42 and the communication interface 43 is at least two, and one ends of the power interfaces 42 and the communication interface 43 facing away from the BMS motherboard 41 all extend out of the case 1.
The BMS protection assembly 4 further comprises a BMS cover plate 44 arranged outside the box body 1, the BMS cover plate 44 is covered and fixed on one side of the box body 1, and a plurality of connection interfaces 45 respectively used for being electrically connected with the power interface 42 and the communication interface 43 are arranged on one side of the BMS cover plate 44 facing the box body 1. In this embodiment, the number of the power interfaces 42 is two, the number of the communication interfaces 43 is five, the two power interfaces 42 are symmetrically arranged on two sides of the BMS motherboard 41, the five communication interfaces 43 are uniformly distributed between the two power interfaces 42, and the two power interfaces 42 and the five communication interfaces 43 are all located on the same straight line. Through the above-mentioned setting, after accomplishing square group battery 2 equipment, the positive pole and the negative pole of whole square group battery 2 all are located same one side this moment, realize being connected with BMS base plate under the effect of second L type connection piece 321 this moment, rethread power source 42 and communication interface 43 are connected with the group battery to realize exempting from the line connection with BMS protection module 4.
The principle of this embodiment is: during assembly, through the cooperation between positive and negative connection piece 24, first L type connection piece 311 and the second L type connection piece 321, realize the equipment to first group battery 21 and second group battery 22, the square group battery 2 assembly that first group battery 21 and second group battery 22 cooperation formed is accomplished promptly this moment, put into the cavity of box 1 with the square group battery 2 that the assembly was accomplished again, make square group battery 2 exempt from to be connected with BMS protection component 4 and seal case lid 11 again, thereby realized the encapsulation of whole square group battery 2, packaging structure is comparatively simple, and need not to utilize the connecting wire to connect, manufacturing cost has been reduced.
The above description is only for the purpose of illustrating the technical solution of the present utility model and not for the purpose of limiting the same, and other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (8)
1. A battery pack packaging structure, characterized by comprising:
a cavity is formed in the box body (1);
the box cover (11) is detachably connected to the box body (1) and is used for opening and closing the box body (1);
the square battery pack (2) is arranged in the box body (1) and comprises a first battery pack (21) and a second battery pack (22), the first battery pack (21) and the second battery pack (22) comprise a plurality of electric cores (23), and the electric cores (23) in the first battery pack (21) and the second battery pack (22) are distributed in a staggered mode, so that the positive poles and the negative poles of two adjacent electric cores (23) in the first battery pack (21) and the second battery pack (22) are located on the same side;
the positive and negative connecting pieces (24) are uniformly arranged on the first battery pack (21) and the second battery pack (22) and are used for connecting the positive and negative poles of two adjacent electric cores (23) so as to realize the serial connection of the two adjacent electric cores (23);
the connecting assembly is arranged between the first battery pack (21) and the second battery pack (22) and is used for connecting the first battery pack (21) and the second battery pack (22) so as to enable the first battery pack (21) and the second battery pack (22) to be connected in series; and
BMS protection component (4), set up in box (1), with square group battery (2) electric connection to realize protecting square group battery (2) charge-discharge process.
2. The battery packaging structure according to claim 1, wherein the first battery pack (21) and the second battery pack (22) are stacked one above the other, the first battery pack (21) is located above the second battery pack (22), and a positive electrode of the battery cell (23) in the first battery pack (21) faces a negative electrode of the battery cell (23) in the second battery pack (22).
3. The battery packaging structure according to claim 1, wherein the connection assembly comprises a first connection member (31) and a second connection member (32) respectively disposed on two sides of the first battery pack (21) and the second battery pack (22), the first connection member (31) is used for connecting a negative electrode of the battery cell (23) in the first battery pack (21) with a positive electrode of the battery cell (23) in the second battery pack (22), and the second connection member (32) is used for connecting a positive electrode of the battery cell (23) in the first battery pack (21) with a negative electrode of the battery cell (23) in the second battery pack (22).
4. A battery package structure according to claim 3, wherein the first connecting member (31) comprises two first L-shaped connecting pieces (311) and a connecting plate for fixedly connecting the two first L-shaped connecting pieces (311), the two first L-shaped connecting pieces (311) are respectively connected with the negative electrode of the battery core (23) in the first battery pack (21) and the positive electrode of the battery core (23) in the second battery pack (22), the connecting plate is located at one side of the two first L-shaped connecting pieces (311) deviating from the first battery pack (21) and the second battery pack (22), and the upper side and the lower side of the connecting plate are respectively fixedly connected with the two first L-shaped connecting pieces (311).
5. A battery package structure according to claim 3, wherein the second connecting member (32) comprises two second L-shaped connecting pieces (321), the two second L-shaped connecting pieces (321) are respectively connected to the positive electrode of the battery cell (23) in the first battery pack (21) and the negative electrode of the battery cell (23) in the second battery pack (22), and both the two second connecting pieces are electrically connected to the BMS protection component (4).
6. The battery package structure according to claim 1, wherein the BMS protection component (4) comprises a BMS main board (41) arranged in the box body (1), a power interface (42) arranged on the BMS main board (41) and a communication interface (43) arranged on the BMS main board (41), the BMS main board (41) is positioned at one side of the box body (1), the BMS main board (41) is electrically connected to two second L-shaped connecting pieces (321), the power interface (42) and the communication interface (43) are electrically connected with the BMS main board (41), and one ends of the power interface (42) and the communication interface (43) away from the BMS main board (41) are all extended out of the box body (1).
7. The battery pack packaging structure according to claim 6, wherein the BMS protection assembly (4) further comprises a BMS cover plate (44) arranged outside the case (1), the BMS cover plate (44) is covered and fixed on one side of the case (1), and a plurality of connection interfaces (45) respectively used for being electrically connected with the power interface (42) and the communication interface (43) are arranged on one side of the BMS cover plate (44) facing the case (1).
8. A battery pack packaging structure according to claim 6, wherein the number of power interfaces (42) and communication interfaces (43) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284306.5U CN220710569U (en) | 2023-05-24 | 2023-05-24 | Battery packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321284306.5U CN220710569U (en) | 2023-05-24 | 2023-05-24 | Battery packaging structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220710569U true CN220710569U (en) | 2024-04-02 |
Family
ID=90445715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321284306.5U Active CN220710569U (en) | 2023-05-24 | 2023-05-24 | Battery packaging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220710569U (en) |
-
2023
- 2023-05-24 CN CN202321284306.5U patent/CN220710569U/en active Active
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