CN220753654U - Novel battery pack structure - Google Patents
Novel battery pack structure Download PDFInfo
- Publication number
- CN220753654U CN220753654U CN202321876753.XU CN202321876753U CN220753654U CN 220753654 U CN220753654 U CN 220753654U CN 202321876753 U CN202321876753 U CN 202321876753U CN 220753654 U CN220753654 U CN 220753654U
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- Prior art keywords
- mounting groove
- battery
- cover
- battery pack
- pack structure
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- 238000002955 isolation Methods 0.000 claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 239000006260 foam Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a novel battery pack structure, which comprises a box body, a cover body, a battery module, a battery management system and a pressing strip, wherein the box body is provided with a plurality of battery modules; the box body is provided with a mounting groove; the cover body is sealed and covered on an upper opening of the mounting groove; the battery module is arranged in the mounting groove, and at least one pressing strip is connected between the long edges of the upper opening of the mounting groove and used for pressing the battery module; the battery module comprises an electric core, a top cover, a bottom cover, an end plate and a wire harness isolation plate; the pole of the battery core faces the side face of the mounting groove and has the same direction, and the upper surface and the lower surface of the pole are respectively embedded into the top cover and the bottom cover; an end plate is connected between the end parts of the top cover and the bottom cover in the same direction; the side surfaces of the bottom cover and the end plate are in limit fit with the side wall of the mounting groove; the wire harness isolation plate is fixedly connected to one surface of the pole of the electric core, and is provided with a abdication hole, a plurality of wiring grooves and a plurality of wire outlets, wherein the abdication hole is opposite to the aluminum row of the electric core; the battery management system is arranged on the bottom wall of the mounting groove and is electrically connected with the battery cell. The utility model restrains the expansion force of the battery core through the corresponding structure and improves the integral use safety.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a novel battery pack structure.
Background
Lithium ions are separated from the positive electrode and are inserted into the negative electrode during charging of the battery core, so that the interlayer spacing of the negative electrode is increased to cause expansion: for the battery cell, the internal pressure of the battery cell is increased due to the expansion phenomenon, and the performance and the service life of the battery cell are attenuated; for modules, if the expansion force is not properly handled, the module size is out of tolerance and even the structural frame is destroyed.
In the prior art, the battery cells are connected in parallel and then are arranged in a battery pack to form a whole. The battery pack is generally applied to a new energy vehicle, and the battery pack can be used for preventing potential safety hazards due to the fact that the battery cell is knocked during running and the expansion phenomenon of the battery cell.
Disclosure of Invention
The utility model aims to provide a novel battery pack structure, solve the problems in the prior art, restrict the expansion force of an electric core through a corresponding structure and improve the integral use safety.
In order to achieve the above object, the solution of the present utility model is:
a novel battery pack structure comprises a box body, a cover body, a battery module, a battery management system and a pressing strip; the box body is provided with a mounting groove; the cover body is sealed and covers the upper opening of the mounting groove; the battery module is arranged in the mounting groove, and at least one pressing strip is connected between the long edges of the upper opening of the mounting groove and used for pressing the upper surface of the battery module; the battery module comprises a plurality of battery cells which are arranged in a side lying way, a top cover, a bottom cover, an end plate and a wire harness isolation plate; the pole posts of the battery cells face the side surfaces of the mounting grooves in the same direction, and the upper surfaces and the lower surfaces of the pole posts are respectively embedded into the top cover and the bottom cover; the top cover is provided with an end plate is connected between the end parts of the bottom cover in the same direction; the side surfaces of the bottom cover and the end plate are in limit fit with the side wall of the mounting groove; the wire harness isolation plate is fixedly connected to one surface of the pole of the electric core, and is provided with a abdication hole opposite to the aluminum row of the electric core, and a plurality of wiring grooves and outlets; the battery management system is arranged on the bottom wall of the mounting groove and is electrically connected with the electric core.
Insulating PC is arranged among the top cover, the bottom cover and the battery cell, and buffer foam is arranged among the end plates and the battery cell.
The side surface of the bottom cover is provided with at least one first positioning groove, the side surface of the end cover is provided with at least one second positioning groove, the bottom wall of the mounting groove is provided with a plurality of first fixing bolts corresponding to the first positioning groove and the second positioning groove, and the first fixing bolts are locked in the first positioning groove or the second positioning groove.
The bottom wall of the mounting groove is provided with a plurality of second fixing bolts corresponding to the battery management system, and the battery management system is fixed on the second fixing bolts.
The side of the end plate is provided with a hook hole.
The wire harness isolation plate is adhered to the pole of the battery core, and an insulating PC is arranged on the outer side face of the wire harness isolation plate.
And the contact surface of the pressing strip and the battery module is subjected to insulation treatment.
And an explosion-proof valve is arranged on the box body.
And a sealing ring is arranged at the edge of the upper opening of the mounting groove.
Preferably, the top surface of the box body is provided with a plurality of positioning columns, and the positioning columns surround the upper opening of the mounting groove; the sealing ring is provided with a positioning hole at a position corresponding to the positioning column, and the positioning column is embedded in the positioning hole.
After the technical scheme is adopted, the utility model has the following technical effects:
(1) the frame main body of the battery module is formed by the top cover, the bottom cover and the end plate to fix and limit the battery cell, so that the expansion force of the battery cell is restrained, and the damage to the module structure when the battery cell expands can be reduced;
(2) the positioning and the mounting of the battery module in the mounting groove are realized through the limit fit of the pressing strips, the bottom cover, the end cover and the side wall of the mounting groove, so that the battery module is ensured not to shake in the battery pack;
(3) the cover body is in airtight fit with the box body, so that leakage of unexpected situations can be prevented, and the safety performance is good;
(4) the wiring harness isolation board can realize unified wiring, and is provided with the hole of stepping down and realizes stepping down the aluminium row of electric core, prevents that aluminium row from touching the ignition at the in-process of installation.
Drawings
FIG. 1 is an exploded view of an embodiment of the present utility model;
fig. 2 is a perspective view of a battery module according to an embodiment of the present utility model;
FIG. 3 is a top view of a lower housing in accordance with an embodiment of the present utility model;
fig. 4 is a schematic view illustrating the installation of a battery module and a BMS according to an embodiment of the present utility model;
FIG. 5 shows the present utility model detailed description of the preferred embodiments is a wiring harness isolation board installation schematic diagram;
FIG. 6 is a schematic view of a wire harness insulation board structure according to an embodiment of the present utility model;
reference numerals illustrate:
1- - -a box; 11-an installation groove; 12- - -a first fixing bolt; 13-a second fixing bolt; 14- -a positioning column;
2- - -a cover; 21-high-low voltage outlet;
3- -a battery module; 31- - -a cell; 311—a pole; 312- -aluminum row; 32- - -a top cover; 321—a harness bolt; 33- - -bottom cover; 331-first positioning groove; 34—end plate; 341—a second positioning groove; 342-a hook hole; 35—a wire harness isolation board; 351—relief holes; 352-wiring grooves; 353- -outlet; 36- - -insulating PC;
4- -a battery management system;
5- - -layering;
6-explosion-proof valve;
7- -a seal ring; 71- - -a positioning hole.
Detailed Description
In order to further explain the technical scheme of the utility model, the utility model is explained in detail by specific examples.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Accordingly, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship conventionally put in place when the inventive product is used, or the orientation or positional relationship conventionally understood by those skilled in the art, is merely for convenience in describing the embodiments of the present utility model, and is not intended to 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.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the embodiments of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed.
In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
Referring to fig. 1 to 6, the present utility model discloses a novel battery pack structure, which includes a case 1, a cover 2, a battery module 3, a battery management system 4 (BMS), and a molding 5;
the box body 1 is provided with a mounting groove 11;
the cover body 2 is sealed and covers the upper opening of the mounting groove 11, so that the mounting groove 11 forms a closed containing cavity;
the battery module 3 is arranged in the mounting groove 11, and at least one pressing bar 5 is connected between the long edges of the upper opening of the mounting groove 11 and used for pressing the upper surface of the battery module 3;
the battery module 3 comprises a plurality of electric cores 31 arranged in a side lying way, a top cover 32, a bottom cover 33, an end plate 34 and a wire harness isolation plate 35; the pole 311 of the battery cell 31 faces the side face of the mounting groove 11 and has the same direction, and the upper surface and the lower surface of the pole are respectively embedded into the top cover 32 and the bottom cover 33; an end plate 34 is connected between the same-direction ends of the top cover 32 and the bottom cover 33; the side surfaces of the bottom cover 33 and the end plate 34 are in limit fit with the side wall of the mounting groove 11; the wire harness isolation plate 5 is fixedly connected to one surface of the pole 311 of the battery core 31, and is provided with a relief hole 351 opposite to the aluminum row 312 of the battery core 31, a plurality of wiring grooves 352 and a plurality of outlets 353;
the battery management system 4 is mounted on the bottom wall of the mounting groove 11 by a bolt lock pair and is electrically connected with the battery cell 31.
Specific embodiments of the utility model are shown below.
In this embodiment, when the height of the single cell 31 is greater than the overall height of the battery pack, the battery module 3 is designed to lie on one side, and the extrusion device is used to extrude each cell 31 appropriately before the cells 31 are assembled into the battery module 3.
The insulating PC is arranged between the top cover 32, the bottom cover 33 and the battery cell 31, and the buffer foam is arranged between the end plate 34 and the battery cell 31, so that the surface abrasion of the battery cell 31 can be prevented to reduce the potential safety hazard.
The top cover 32, the bottom cover 33 and the end plate 34 are lapped together by bolts or rivets to form a whole, so that the strength of the frame body of the battery module 3 is improved.
The upper surface of the top cover 32 is provided with a wire harness bolt 321, and the wire harness bolt 321 is used for installing a wire clip so as to realize the trend of the prescribed wire harness.
The side surface of the bottom cover 33 is provided with at least one first positioning groove 331, the side surface of the end cover 34 is provided with at least one second positioning groove 341, the bottom wall of the mounting groove 11 is provided with a plurality of first fixing bolts 12 corresponding to the positions of the first positioning groove 331 and the second positioning groove 341, and the first fixing bolts 12 are locked in the first positioning groove 331 or the second positioning groove 341 so as to realize limit fit between the side surfaces of the bottom cover 33 and the end plate 34 and the side wall of the mounting groove 11.
The bottom wall of the mounting groove 11 is provided with a plurality of second fixing bolts 13 corresponding to the battery management system 4, and the battery management system 4 is fixed on the second fixing bolts 13, so as to ensure that the battery management system 4 does not shake in the box 1.
The side surface of the end plate 34 is provided with a hook hole 342, which is convenient for carrying and installing the battery module 3.
The wire harness isolation plate 35 is adhered to the pole 311 of the battery cell 31 through double faced adhesive tape, and the insulating PC 36 is mounted on the outer side surface of the wire harness isolation plate 35 through a buckle, so that the aluminum row 312 of the battery cell 31 cannot touch the box body 1 after the battery module 3 is placed in the mounting groove 11.
The contact surface of the pressing bar 5 and the battery module 3 is insulated. If the length of the battery module 3 is too long (for example, the length is more than or equal to 350 mm), the middle part of the battery module 3 is first stress in the shaking process, the module is easy to loosen due to uneven overall stress of the module, and the pressing strip 5 is mainly arranged at a position close to the middle of the battery module 3.
On the box body 1 an explosion-proof valve 6 is installed. The battery cell 31 may damage the battery structure due to internal or external short circuit, overcharge, collision, etc. during use, cause heat generation and expansion of the battery, by packaging the explosion-proof valve 6 in the battery, the explosion-proof valve will split and release gas before the gas inside the battery pack (i.e. in the mounting groove 11) reaches the explosion limit, thereby avoiding the explosion of the battery pack.
The sealing ring 7 is arranged at the edge of the upper opening of the mounting groove 11, so that the whole battery pack can reach a sufficient waterproof level, and the use requirement under a complex environment is met.
Further, the top surface of the case 1 is provided with a plurality of positioning posts 14, and the positioning posts 14 surround the upper opening of the mounting groove 11; the sealing washer 7 is provided with the locating hole 71 corresponding to the position of reference column 14, and reference column 14 inlays and establishes in the locating hole 71 for the sealing washer location cooperation is in the top surface of box 1, avoids sealing not in place and takes place the condition of leaking.
The cover 2 is provided with a high-low voltage outlet 21.
Through the scheme, the top cover 32, the bottom cover 33 and the end plate 34 form the frame main body of the battery module 3 to fix and limit the battery cells 31, so that the expansion force of the battery cells 31 is restrained, and the damage to the module structure when the battery cells 31 are expanded can be reduced; the positioning and the installation of the battery module 3 in the installation groove 11 are realized through the limit fit of the pressing strip 5, the bottom cover 33 and the end cover 34 with the side wall of the installation groove 11, so that the battery module 3 is ensured not to shake in the battery pack; the cover body 2 is in airtight fit with the box body 1, so that leakage of unexpected situations can be prevented, and the safety performance is good; the wiring harness isolation board 5 can achieve uniform wiring, and the aluminum row 312 of the abdicating cell 31 is achieved through the abdicating holes 351, so that the aluminum row 312 is prevented from being touched to strike fire in the installation process.
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.
Claims (10)
1. A novel battery package structure, its characterized in that:
comprises a box body, a cover body, a battery module, a battery management system and a pressing strip;
the box body is provided with a mounting groove;
the cover body is sealed and covers the upper opening of the mounting groove;
the battery module is arranged in the mounting groove, and at least one pressing strip is connected between the long edges of the upper opening of the mounting groove and used for pressing the upper surface of the battery module;
the battery module comprises a plurality of battery cells which are arranged in a side lying way, a top cover, a bottom cover, an end plate and a wire harness isolation plate; the pole posts of the battery cells face the side surfaces of the mounting grooves in the same direction, and the upper surfaces and the lower surfaces of the pole posts are respectively embedded into the top cover and the bottom cover; an end plate is connected between the end parts of the top cover and the bottom cover in the same direction; the side surfaces of the bottom cover and the end plate are in limit fit with the side wall of the mounting groove; the wire harness isolation plate is fixedly connected to one surface of the pole of the electric core, and is provided with a abdication hole opposite to the aluminum row of the electric core, and a plurality of wiring grooves and outlets;
the battery management system is arranged on the bottom wall of the mounting groove and is electrically connected with the electric core.
2. The novel battery pack structure of claim 1, wherein:
insulating PC is arranged among the top cover, the bottom cover and the battery cell, and buffer foam is arranged among the end plates and the battery cell.
3. The novel battery pack structure of claim 1, wherein:
the side of bottom is provided with at least one first constant head tank, the side of end plate is provided with at least one second constant head tank, the diapire of mounting groove corresponds the position of first constant head tank, second constant head tank is provided with a plurality of first fixing bolts, first fixing bolt lock pair is in first constant head tank or in the second constant head tank.
4. The novel battery pack structure of claim 1, wherein:
the bottom wall of the mounting groove is provided with a plurality of second fixing bolts corresponding to the battery management system, and the battery management system is fixed on the second fixing bolts.
5. The novel battery pack structure of claim 1, wherein:
the side of the end plate is provided with a hook hole.
6. The novel battery pack structure of claim 1, wherein:
the wire harness isolation plate is adhered to the pole of the battery core, and an insulating PC is arranged on the outer side face of the wire harness isolation plate.
7. The novel battery pack structure of claim 1, wherein:
and the contact surface of the pressing strip and the battery module is subjected to insulation treatment.
8. The novel battery pack structure of claim 1, wherein:
and an explosion-proof valve is arranged on the box body.
9. The novel battery pack structure of claim 1, wherein:
and a sealing ring is arranged at the edge of the upper opening of the mounting groove.
10. The novel battery pack structure of claim 9, wherein:
the top surface of the box body is provided with a plurality of positioning columns, and the positioning columns surround the upper opening of the mounting groove; the sealing ring is provided with a positioning hole at a position corresponding to the positioning column, and the positioning column is embedded in the positioning hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876753.XU CN220753654U (en) | 2023-07-17 | 2023-07-17 | Novel battery pack structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321876753.XU CN220753654U (en) | 2023-07-17 | 2023-07-17 | Novel battery pack structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753654U true CN220753654U (en) | 2024-04-09 |
Family
ID=90554143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321876753.XU Active CN220753654U (en) | 2023-07-17 | 2023-07-17 | Novel battery pack structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753654U (en) |
-
2023
- 2023-07-17 CN CN202321876753.XU patent/CN220753654U/en active Active
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