CN219979699U - Battery pack assembly - Google Patents
Battery pack assembly Download PDFInfo
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- CN219979699U CN219979699U CN202320386621.2U CN202320386621U CN219979699U CN 219979699 U CN219979699 U CN 219979699U CN 202320386621 U CN202320386621 U CN 202320386621U CN 219979699 U CN219979699 U CN 219979699U
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- battery pack
- longitudinal beam
- pack assembly
- horizontal section
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- 230000003044 adaptive effect Effects 0.000 claims abstract description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 abstract description 18
- 230000000670 limiting effect Effects 0.000 abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery pack assembly, in the battery pack assembly, a box body is detachably connected with a plurality of square shell battery cells, an upper cross beam is arranged at intervals of the lower cross beam, a front longitudinal beam, an upper cross beam, a rear longitudinal beam and a lower cross beam enclose a limiting area for installing the square shell battery cells, a plurality of bolt holes are arranged outside the limiting area and are close to the positions of the front longitudinal beam or the rear longitudinal beam, a plurality of positioning pins are arranged outside the limiting area and are close to the bolt holes, a pair of extrusion end plates are respectively and vertically connected with the front longitudinal beam and the rear longitudinal beam, each extrusion end plate is provided with a horizontal section and a vertical section which vertically extends from the horizontal section, a plurality of bolt mounting points are arranged on the horizontal section and are connected with the bolt holes, a plurality of positioning holes are arranged on the horizontal section and are connected with the positioning pins, one end of each support block is connected with the horizontal section, the other end of each support block is connected with the vertical section, a guide rib is arranged on the back of the horizontal section and is connected with the front longitudinal beam or the rear longitudinal beam in an adaptive manner, and a plurality of wire harness mounting holes are arranged on the vertical section. The battery pack assembly has high energy density and light weight.
Description
Technical Field
The utility model relates to the technical field of battery packs, in particular to a battery pack assembly.
Background
The battery Pack is an important component of the new energy technology, provides energy and power for storage of a new energy automobile, is called Cell to Pack by CTP, namely, skips a standardized module link, and directly integrates an electric core on the battery Pack. The endurance mileage is a key design factor of the battery pack, reduces the use of module parts, has higher energy density and lower cost, and reduces the links of module manufacturing, which is a problem to be mainly solved at present.
The above information disclosed in the background section is only for enhancement of understanding of the background of the utility model and therefore may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to provide a battery pack assembly, which reduces module parts, has higher energy density and lower cost, and saves labor time and labor cost.
In order to achieve the above object, the present utility model provides the following technical solutions:
the battery pack assembly of the present utility model includes:
a box body which is detachably connected with a plurality of square shell battery cores, wherein the box body comprises,
a front side member fixed to the case and extending in a first direction,
a rear side member fixed to the case and extending in a first direction, the rear side member being arranged at a spacing from the front side member,
an upper cross member fixed between the front side member and the rear side member and extending in a second direction perpendicular to the first direction,
a lower cross beam fixed between the front longitudinal beam and the rear longitudinal beam and extending along a second direction perpendicular to the first direction, the lower cross beam being arranged at intervals of the upper cross beam, the front longitudinal beam, the upper cross beam, the rear longitudinal beam and the lower cross beam enclosing a limit area for mounting the square-shell battery cell,
a plurality of bolt holes which are arranged outside the limit area and are close to the front longitudinal beam or the rear longitudinal beam,
a plurality of locating pins which are arranged outside the limit area and are close to the bolt holes,
a pair of crush end plates vertically connecting the front side rail and the rear side rail, respectively, the crush end plates having a horizontal section and a vertical section extending vertically from the horizontal section, the crush end plates further comprising,
a plurality of bolt mounting points which are arranged on the horizontal section and are connected with the bolt holes through bolts,
a plurality of positioning holes which are arranged on the horizontal section and are connected with the positioning pins,
a plurality of supporting blocks, one end of which is connected with the horizontal section, the other end of which is connected with the vertical section, and a guide rib which is arranged at the back of the horizontal section and is connected with the front longitudinal beam or the rear longitudinal beam in an adaptive manner,
and a plurality of harness mounting holes provided in the vertical section.
In the battery pack assembly, a first reinforcing rib is arranged on one side of the vertical section, close to the square shell battery core, in a crisscross mode, and a second reinforcing rib is arranged on one side of the vertical section, far away from the square shell battery core.
In the battery pack assembly, two ends of the second reinforcing rib are connected with the supporting blocks.
In the battery pack assembly, the supporting block is of a right triangle structure, and two right-angle sides of the supporting block are respectively connected with the horizontal section and the vertical section.
The battery pack assembly further comprises a middle cross beam which is fixed between the front longitudinal beam and the rear longitudinal beam and divides the limit area into two halves.
In the battery pack assembly, the back of the horizontal section is provided with a clamping groove for clamping the front longitudinal beam or the rear longitudinal beam.
In one embodiment, the clamping groove has a pair of vertical walls extending along a first direction, and the guide rib is disposed on opposite inner sides between the pair of vertical walls.
In the battery pack assembly, the back of the horizontal section is provided with the supporting ribs for supporting on the box body.
In the battery pack assembly, the supporting ribs are perpendicular to the clamping grooves.
In the battery pack assembly, mica sheets are arranged between the square shell electric cores.
In the technical scheme, the battery pack assembly provided by the utility model has the following beneficial effects: the battery pack assembly reduces the use of module parts, has higher energy density and lower cost, reduces the links of module manufacture, can greatly save working hours and labor cost, adopts the connection mode of bolts to extrude the end plate and the box body, avoids the problem that magnesium aluminum alloy and aluminum alloy cannot be welded, and facilitates the disassembly of the extrusion end plate of the follow-up CTP battery pack in the bolt connection mode, thereby bringing great convenience to maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
Fig. 1 is a schematic view of a battery pack assembly according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram showing a front structure of a case of the battery pack assembly according to an embodiment of the present utility model.
Fig. 3 is a schematic structural view of a stacked square-case cell of a battery pack assembly according to an embodiment of the present utility model.
Fig. 4 is a schematic structural view of a box-assembled square-case cell of a battery pack assembly according to an embodiment of the present utility model.
Fig. 5 is a schematic view of the crush end plate of a battery pack assembly according to one embodiment of the utility model.
Fig. 6 is a schematic view of the crush end plate of a battery pack assembly according to one embodiment of the utility model.
Fig. 7 is a schematic view of the crush end plate of a battery pack assembly according to one embodiment of the utility model.
Detailed Description
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. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Thus, 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, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, 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 present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying 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.
Furthermore, the terms "first," "second," 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 such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; 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 can be understood by those of ordinary skill in the art according to the specific circumstances.
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.
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-7, in one embodiment, a battery pack assembly of the present utility model includes,
a box body 1 detachably connected with a plurality of square shell battery cells 3, wherein the box body 1 comprises,
a front side member 1-5 fixed to the case 1 and extending in a first direction,
a rear side member 1-6 fixed to the case 1 and extending in a first direction, the rear side member 1-6 being arranged at a spacing from the front side member 1-5,
an upper cross member 1-3 fixed between the front side member 1-5 and the rear side member 1-6 and extending in a second direction perpendicular to the first direction,
a lower cross member 1-7 fixed between the front side member 1-5 and the rear side member 1-6 and extending in a second direction perpendicular to the first direction, the lower cross member 1-7 being arranged apart from the upper cross member 1-3, the front side member 1-5, the upper cross member 1-3, the rear side member 1-6 and the lower cross member 1-7 enclosing a limit area for mounting the square-case cell 3,
a plurality of bolt holes 1-2 provided outside the limit area and near the front side member 1-5 or the rear side member 1-6,
a plurality of positioning pins 1-1 which are arranged outside the limit area and are close to the bolt holes 1-2,
a pair of crush end plates 2 vertically connecting the front side members 1 to 5 and the rear side members 1 to 6, respectively, the crush end plates 2 having a horizontal section and a vertical section extending vertically from the horizontal section, the crush end plates 2 further comprising,
a plurality of bolt mounting points 2-4 provided at the horizontal section and bolted to the bolt holes 1-2,
a plurality of positioning holes 2-1 which are arranged on the horizontal section and are connected with the positioning pins 1-1,
a plurality of supporting blocks 2-3, one end of which is connected with the horizontal section and the other end is connected with the vertical section,
a guide rib 2-6 provided at the back of the horizontal section and adapted to connect the front side member 1-5 or the rear side member 1-6,
a plurality of harness mounting holes 2-8 provided in the vertical section.
In the preferred embodiment of the battery pack assembly, the side of the vertical section, which is close to the square shell battery core 3, is provided with crisscrossed first reinforcing ribs 2-9, and the side of the vertical section, which is far away from the square shell battery core 3, is provided with second reinforcing ribs 2-5.
In the preferred embodiment of the battery pack assembly, two ends of the second reinforcing rib 2-5 are connected with the supporting blocks 2-3.
In the preferred embodiment of the battery pack assembly, the supporting blocks 2-3 are in a right triangle structure, and two right-angle sides of the supporting blocks are respectively connected with the horizontal section and the vertical section.
In the preferred embodiment of the battery pack assembly, the battery pack further comprises a middle cross member 1-4 which is fixed between the front side member 1-5 and the rear side member 1-6 and divides the limit area into two halves.
In the preferred embodiment of the battery pack assembly, the back surface of the horizontal section is provided with a clamping groove for clamping the front longitudinal beam 1-5 or the rear longitudinal beam 1-6.
In the preferred embodiment of the battery pack assembly, the clamping groove is provided with a pair of vertical walls extending along the first direction, and the guide ribs 2-6 are arranged on the inner sides opposite to each other between the pair of vertical walls.
In the preferred embodiment of the battery pack assembly, the back surface of the horizontal section is provided with the supporting ribs 2-7 for supporting on the case 1.
In the preferred embodiment of the battery pack assembly, the support ribs 2-7 are perpendicular to the clamping grooves.
In the preferred embodiment of the battery pack assembly, mica sheets 5 are arranged between the square shell battery cells 3.
In one embodiment, as shown in fig. 1, the battery pack assembly comprises a box body 1 of magnesium aluminum alloy, an extrusion end plate 2, a square shell cell 3 and a mica sheet 5 between the square shell cells 3, further, the box body 1 is formed by casting, two areas A0 and A1 are designed on the box body 1, the areas A1 are divided by a cast front longitudinal beam 1-5, an upper longitudinal beam 1-3, a middle longitudinal beam 1-4, a lower longitudinal beam 1-7 and a rear longitudinal beam 1-6, and meanwhile, the front longitudinal beam 1-5, the upper longitudinal beam 1-3, the middle longitudinal beam 1-4, the lower longitudinal beam 1-7 and the rear longitudinal beam 1-6 also have a limiting effect to limit the first-direction displacement of the cell such as Y direction and the second-direction displacement such as X direction; as shown in fig. 3, square shell electric cores 3 are sequentially stacked into the areas A0 and A1 of the box body, mica sheets 5 are added between the square shell electric cores to prevent heat transfer between the square shell electric cores, a module B is formed by sequentially stacking, and as shown in fig. 4, further, the front 4 mounting points 2-2 and the rear 4 bolt mounting points 2-4 are designed on the extrusion end plate 2, connection and fixation with cast bolt holes 1-2 on the box body 1 are realized through bolts 4, pre-positioning before installation of the extrusion end plate 2 is realized through cast positioning pins 1-1 on the box body 1, and positioning functions are realized through the positioning pins 1-1 and positioning holes 2-1, as shown in fig. 5; further, as shown in fig. 6, a guiding rib 2-6 is further designed on the back of the extrusion end plate 2, so that a guiding effect between the extrusion end plate and a rear longitudinal beam 1-6 on the box body 1 in the assembly process is guaranteed, 4 supporting blocks 2-3 are designed in the middle of the extrusion end plate 2 for enhancing the strength of the vertical section of the upper body of the extrusion end plate 2, the supporting blocks 2-3 are also extruded with the extrusion end plate 2, the process is simple, and further, a second reinforcing rib 2-5 is designed at the waist of the extrusion end plate 2, so that the waist strength is enhanced; a wire harness mounting hole 2-8 is reserved at the top of the extrusion end plate 2, and a clamping position is provided for subsequent wire harness assembly; in order to increase the strength of the bottom of the extrusion end plate, 6 supporting ribs 2-7 are designed at the bottom to support the whole extrusion end plate 2, and the supporting ribs 2-7 are contacted with the box body to transmit stress to the box body 1, as shown in fig. 6; further, as shown in fig. 7, the waist and back of the extrusion end plate 2 is further provided with criss-cross first reinforcing ribs 2-9, so that the rigidity of the extrusion end plate 2 is further increased; through the mode, the installation of the electric core in the CTP battery pack is formed, the electric core is directly connected in a butt joint mode, and the cast extrusion end plate and the cast box body are connected through the bolts, so that the use of module links can be reduced, and convenience is brought to follow-up disassembly in a bolt connection mode.
Finally, it should be noted that: the described embodiments are intended to be illustrative of only some, but not all, of the embodiments of the present utility model and, based on the embodiments herein, all other embodiments that may be made by those skilled in the art without the benefit of the present disclosure are intended to be within the scope of the present utility model.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. A battery pack assembly, comprising:
a box body which is detachably connected with a plurality of square shell battery cores, wherein the box body comprises,
a front side member fixed to the case and extending in a first direction,
a rear side member fixed to the case and extending in a first direction, the rear side member being arranged at a spacing from the front side member,
an upper cross member fixed between the front side member and the rear side member and extending in a second direction perpendicular to the first direction,
a lower cross beam fixed between the front longitudinal beam and the rear longitudinal beam and extending along a second direction perpendicular to the first direction, the lower cross beam being arranged at intervals of the upper cross beam, the front longitudinal beam, the upper cross beam, the rear longitudinal beam and the lower cross beam enclosing a limit area for mounting the square-shell battery cell,
a plurality of bolt holes which are arranged outside the limit area and are close to the front longitudinal beam or the rear longitudinal beam,
a plurality of locating pins which are arranged outside the limit area and are close to the bolt holes,
a pair of crush end plates vertically connecting the front side rail and the rear side rail, respectively, the crush end plates having a horizontal section and a vertical section extending vertically from the horizontal section, the crush end plates further comprising,
a plurality of bolt mounting points which are arranged on the horizontal section and are connected with the bolt holes through bolts,
a plurality of positioning holes which are arranged on the horizontal section and are connected with the positioning pins,
a plurality of supporting blocks, one end of each supporting block is connected with the horizontal section, the other end is connected with the vertical section,
a guide rib which is arranged at the back of the horizontal section and is connected with the front longitudinal beam or the rear longitudinal beam in an adaptive manner,
and a plurality of harness mounting holes provided in the vertical section.
2. The battery pack assembly of claim 1, wherein the vertical section is provided with crisscrossed first reinforcing ribs on a side of the vertical section adjacent to the square-case cell, and a second reinforcing rib on a side of the vertical section away from the square-case cell.
3. The battery pack assembly of claim 2, wherein the second reinforcing ribs are connected to the support blocks at both ends.
4. A battery pack assembly according to claim 3, wherein the support block has a right triangle structure, and two right-angle sides thereof are respectively connected to the horizontal section and the vertical section.
5. The battery pack assembly of claim 1, further comprising a center cross member secured between the front and rear stringers and dividing the restraint region into two halves.
6. The battery pack assembly of claim 1, wherein the back of the horizontal section is provided with a clamping groove for clamping the front longitudinal beam or the rear longitudinal beam.
7. The battery pack assembly of claim 6, wherein the slot has a pair of vertical walls extending in a first direction, the guide rib being disposed on opposite inner sides between the pair of vertical walls.
8. The battery pack assembly of claim 6, wherein the back of the horizontal section is provided with support ribs for supporting on the housing.
9. The battery pack assembly of claim 8, wherein the support rib is perpendicular to the clamping groove.
10. The battery pack assembly of claim 1, wherein mica sheets are disposed between the square-shell cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320386621.2U CN219979699U (en) | 2023-03-06 | 2023-03-06 | Battery pack assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320386621.2U CN219979699U (en) | 2023-03-06 | 2023-03-06 | Battery pack assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219979699U true CN219979699U (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320386621.2U Active CN219979699U (en) | 2023-03-06 | 2023-03-06 | Battery pack assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219979699U (en) |
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2023
- 2023-03-06 CN CN202320386621.2U patent/CN219979699U/en active Active
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