CN210837863U - Battery pack connecting assembly - Google Patents
Battery pack connecting assembly Download PDFInfo
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- CN210837863U CN210837863U CN201921967168.4U CN201921967168U CN210837863U CN 210837863 U CN210837863 U CN 210837863U CN 201921967168 U CN201921967168 U CN 201921967168U CN 210837863 U CN210837863 U CN 210837863U
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- battery pack
- upper cover
- mounting hole
- mounting
- battery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery package coupling assembling, casing under battery package upper cover and battery package, be equipped with the crossbeam on the casing under the battery package, install support piece on the crossbeam, support piece with be equipped with the sealing member between the battery package upper cover, still include first connecting piece and second connecting piece, first connecting piece is used for connecting the battery package upper cover with support piece will the sealing member compresses tightly, the second connecting piece from last down pass the automobile body floor in proper order the battery package upper cover with support piece connects the three. The utility model has the advantages that the supporting piece is arranged on the beam and is positioned between the upper cover of the battery pack and the lower casing of the battery pack, thereby playing the role of increasing the rigidity of the upper cover of the battery pack and the rigidity of the bottom plate of the vehicle body; meanwhile, the battery pack upper cover and the vehicle body floor are connected through the supporting piece, the thickness of metal plates of the battery pack upper cover and the vehicle body floor does not need to be increased, and the cost is low.
Description
Technical Field
The utility model relates to a technical field of car battery package especially relates to a battery package coupling assembling.
Background
Under the requirements of light weight and long endurance, the new electric vehicle platform plans the space of the vehicle body floor in the height direction to the battery pack as much as possible during layout so as to strive for larger battery capacity and higher vehicle ground clearance. However, the cross section height of the transverse and longitudinal beams of the floor can be reduced by the layout, the cross section height is only 30-50% of that of the fuel vehicle, the rigidity of the floor is weakened, and the problems that the NVH performance and the control performance of the vehicle are reduced and the like can be caused.
Meanwhile, the battery pack has high light weight requirement for improving energy density, and an upper cover plate stamped by nonmetal or thin aluminum alloy is needed besides a lower shell made of aluminum alloy, so that the cover plate has weak rigidity, and the problems of conveying deformation, cracking, vibration deformation and the like can be caused.
Thus, two problems arise:
(1) the rigidity of the floor of the vehicle body is improved, and the NVH and the operation performance of the electric vehicle are improved;
(2) the rigidity of the upper cover plate of the battery pack is improved, and the problems of conveying deformation, cracking and vibration deformation of the upper cover plate of the battery pack are solved.
As shown in fig. 1, in the prior art, only the periphery of the battery pack is connected with the vehicle body, the middle position of the battery pack is provided with no connecting structure, and the structure is not compact, so that the rigidity problem is solved only by increasing the thickness of the sheet metal of the vehicle body floor and the thickness of the upper cover of the battery pack. However, the increase of the thickness causes the increase of the cost and the vehicle weight, and simultaneously causes the problems of the reduction of the energy density of the battery pack, the reduction of the endurance mileage and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide one kind and be necessary to design with low costs, do not increase part thickness to can solve the battery package coupling assembling that battery package upper cover rigidity is not enough.
The technical scheme of the utility model a battery package coupling assembling is provided, casing under battery package upper cover and battery package, be equipped with the crossbeam on the casing under the battery package, install support piece on the crossbeam, support piece with be equipped with the sealing member between the battery package upper cover, still include first connecting piece and second connecting piece, first connecting piece is used for connecting the battery package upper cover with support piece will the sealing member compresses tightly, the second connecting piece from last down pass the automobile body floor in proper order the battery package upper cover with support piece connects the three.
Furthermore, the supporting piece comprises a wedge-shaped support and a mounting table, the wedge-shaped support is arranged on the cross beam, the mounting table is located at the top of the wedge-shaped support, a first mounting hole and a second mounting hole are formed in the mounting table, the first connecting piece is inserted into the first mounting hole, and the second connecting piece is inserted into the second mounting hole.
Further, the mounting table is a cylindrical table or a square table.
Furthermore, the first connecting piece is a tapping screw, the first mounting holes are screw holes, and the number of the first mounting holes is two;
the second connecting piece is a bolt, the second mounting holes are bolt holes, and one second mounting hole is located between the two first mounting holes.
Further, the sealing member is a sealing ring, a circle of sealing groove is formed in the outer edge of the upper surface of the mounting table, and the sealing ring is embedded into the sealing groove.
Furthermore, a circular boss is formed on the upper cover of the battery pack, the circular boss covers the upper portion of the cylindrical table, the top surface of the circular boss is a plane, a third mounting hole and a fourth mounting hole are formed in the top surface, the third mounting hole is aligned with the first mounting hole, and the fourth mounting hole is aligned with the second mounting hole.
And furthermore, sealant is arranged between the floor of the vehicle body and the flanging of the floor beam.
Furthermore, the crossbeam includes front beam and back crossbeam, be equipped with two on the front beam the support piece, the center of back crossbeam is equipped with one the support piece.
Furthermore, the two supporting pieces on the front cross beam are connected with flanges of a front row seat cross beam of the vehicle body floor.
Furthermore, one of the support members on the rear cross member is connected with a flange of a longitudinal beam of the vehicle body floor.
After adopting above-mentioned technical scheme, have following beneficial effect:
the utility model has the advantages that the supporting piece is arranged on the beam and is positioned between the upper cover of the battery pack and the lower casing of the battery pack, thereby playing the role of increasing the rigidity of the upper cover of the battery pack and the rigidity of the bottom plate of the vehicle body; meanwhile, the battery pack upper cover and the vehicle body floor are connected through the supporting piece, the thickness of metal plates of the battery pack upper cover and the vehicle body floor does not need to be increased, and the cost is low.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a schematic structural view of a conventional battery pack;
fig. 2 is a schematic structural view of a battery pack connection assembly according to an embodiment of the present invention;
fig. 3 is a partially enlarged view of a battery pack connection assembly according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
fig. 5 is a partially exploded view of a battery pack connection assembly according to an embodiment of the present invention;
fig. 6 is a schematic structural view of the battery pack connecting assembly connected to the vehicle body floor in an embodiment of the present invention.
Reference symbol comparison table:
the battery pack connecting assembly 10, the vehicle body floor 20 and the floor cross member 30;
battery pack upper cover 1: the circular boss 11, the third mounting hole 111 and the fourth mounting hole 112;
battery pack lower case 2: cross member 21, front cross member 211, rear cross member 212;
a support 3: the wedge-shaped support 31, the cylindrical table 32, the welding spot 33, the first mounting hole 321, the second mounting hole 322 and the sealing groove 323;
the sealing element 4, the first connecting piece 5, the second connecting piece 6 and the sealant 7.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
It is easily understood that, according to the technical solution of the present invention, a plurality of structural modes and implementation modes that can be mutually replaced by those of ordinary skill in the art can be achieved without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are only exemplary illustrations of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
In this embodiment, as shown in fig. 2 and fig. 5 to 6, the battery pack connecting assembly 10 includes a battery pack upper cover 1 and a battery pack lower casing 2, a cross beam 21 is disposed on the battery pack lower casing 2, a support member 3 is mounted on the cross beam 21, a sealing member 4 is disposed between the support member 3 and the battery pack upper cover 1, the battery pack connecting assembly further includes a first connecting member 5 and a second connecting member 6, the first connecting member 5 is used for connecting the battery pack upper cover 1 and the support member 3 and compressing the sealing member 4, and the second connecting member 6 sequentially penetrates through the vehicle body floor 20, the battery pack upper cover 1 and the support member 3 from top to bottom and connects the three.
Specifically, as shown in fig. 2, the battery pack lower case 2 is of a sheet metal structure, and a cross beam 21 is provided on the battery pack lower case 2, and the cross beam 21 extends in the left-right direction of the vehicle body.
The support member 3 is mounted on the cross member 21 and located between the battery pack upper cover 1 and the battery pack lower case 2, for supporting the battery pack upper cover 1.
Because the support piece 3 is arranged on the cross beam 21, the middle position of the battery pack upper cover 1 can be supported, and the structural strength of the battery pack upper cover 1 is increased.
During the installation, utilize first connecting piece 5 to pass battery package upper cover 1 and battery package casing 2 down from last in proper order earlier, be connected battery package upper cover 1 and battery package casing 2 down.
In order to ensure the air tightness and water tightness of the battery pack, a sealing element 4 is arranged between the battery pack upper cover 1 and the supporting element 3, and when the first connecting element 5 is connected with the battery pack upper cover 1 and the supporting element 3, the sealing element 4 is pressed tightly, so that the sealing performance inside the battery pack is ensured.
Then the whole battery pack is connected with the vehicle body floor 20, and the battery pack and the vehicle body floor 20 are connected together by sequentially penetrating through the vehicle body floor 20, the battery pack upper cover 1 and the supporting piece 3 from top to bottom through the second connecting piece 6.
The battery pack connecting assembly in the embodiment does not need to increase the thickness of the metal plates of the battery pack upper cover 1 and the vehicle body floor 20, so that parts are light in weight and low in cost.
Further, as shown in fig. 2, the cross beam 21 includes a front cross beam 211 and a rear cross beam 212, two supports 3 are disposed on the front cross beam 211, and one support 3 is disposed in the center of the rear cross beam 212.
Further, the two supports 3 on the front cross member 211 are connected to the flanges of the front seat cross member of the vehicle body floor 20.
Further, one support 3 on the rear cross member 212 is connected to the flange of the side member of the vehicle body floor 20.
Each support 3 is provided with a respective sealing member 4, a first connecting member 5 and a second connecting member 6.
Alternatively, the supporting members 3 may be distributed in other ways on the cross beam 21. For example: two or more supports 3 are provided on the rear cross member 212, and one support 3 is provided on the front cross member 211.
Further, as shown in fig. 3-4, the supporting member 3 includes a flat wedge-shaped bracket 31 and a mounting platform, wherein the mounting platform is a cylindrical platform 32, the wedge-shaped bracket 31 is disposed on the cross beam 21, the cylindrical platform 32 is located on the top of the wedge-shaped bracket 31, a first mounting hole 321 and a second mounting hole 322 are formed in the cylindrical platform 32, the first connecting member 5 is inserted into the first mounting hole 321, and the second connecting member 6 is inserted into the second mounting hole 322.
Specifically, the width of the wedge bracket 31 is slightly larger than the thickness of the cross beam 21, the width of the bottom of the wedge bracket 31 is larger than that of the top, and the width of the top is substantially equal to the diameter of the cylindrical table 32.
The wedge-shaped support 31 mainly plays a role of support, and the cylindrical table 32 mainly plays a role of connection.
The cylindrical table 32 is provided with a first mounting hole 321 and a second mounting hole 322, the first mounting hole 321 and the second mounting hole 322 are blind holes, and the diameter of the first mounting hole 321 is smaller than that of the second mounting hole 322.
Alternatively, the wedge bracket 31 may not be flat in shape, and the mounting platform may also be a square platform, or other shaped boss.
Further, the first connecting piece 5 is a tapping screw, the first mounting holes 321 are screw holes, and there are two first mounting holes 321;
the second connecting member 6 is a bolt, the second mounting holes 322 are bolt holes, and one of the second mounting holes 322 is located between the two first mounting holes 321.
Preferably, the first connecting piece 5 is an M4 flat head self-tapping screw, and after the M4 flat head self-tapping screw is connected with the first mounting hole 321, the matching of the vehicle body floor 20 and the battery pack upper cover 1 is not influenced.
Alternatively, the first connecting member 5 and the second connecting member 6 may be other connecting members, and the number may be smaller or larger. As long as can satisfy connection stability, all belong to the utility model discloses a protection scope.
Further, as shown in fig. 4-5, the sealing element 4 is a sealing ring, and the outer edge of the upper surface of the cylindrical table 32 is provided with a ring of sealing groove 323, and the sealing ring 4 is partially embedded in the sealing groove 323.
After the battery pack upper cover 1 is connected with the cylindrical table 32, the sealing ring 4 is compressed and deformed, and water vapor is prevented from entering the battery pack.
Preferably, the wedge bracket 31 and the cross beam 21 are made of aluminum alloy and are connected by welding.
As shown in fig. 3, the wedge bracket 31 has a U-shaped groove formed in the bottom thereof, and the U-shaped groove is formed on the upper surface of the cross member 21 and connected thereto by spot welding via a plurality of welding spots 33.
Alternatively, other materials may be used for the support 3. For example: plastic with certain hardness.
Further, as shown in fig. 5, a circular boss 11 is formed on the battery pack upper cover 1, the circular boss 11 covers the upper side of the cylindrical table 32, the top surface of the circular boss 11 is a plane, a third mounting hole 111 and a fourth mounting hole 112 are formed on the top surface, the third mounting hole 111 is aligned with the first mounting hole 321, and the fourth mounting hole 112 is aligned with the second mounting hole 322.
The periphery of the circular boss 11 is the main structure of the battery pack upper cover 1, and the circular boss 11 is covered on the top surface of the cylindrical table 32 and can be better matched with the cylindrical table 32.
When the battery pack upper cover 1 is connected to the cylindrical table 32, the first connecting member 5 passes through the third mounting hole 111 and the first mounting hole 321 in sequence.
As shown in fig. 6, when the battery pack is coupled to the vehicle body floor 20, the second coupling member 6 passes through the mounting hole of the vehicle body floor 20, the fourth mounting hole 112, and the second mounting hole 322 in this order.
Further, as shown in fig. 6, the vehicle body floor 20 and the flange of the floor cross member 30 are provided with the sealant 7.
The second connecting piece 6 sequentially penetrates through the floor cross beam 30, the vehicle body floor 20, the battery pack upper cover 1 and the supporting piece 3 from top to bottom.
The sealant 7 is used for ensuring that the passenger compartment cannot enter water when the vehicle wades.
The utility model has the advantages of it is following:
1. the parts are light. In the prior art, in order to improve the rigidity of the vehicle body, the thickness of a vehicle body metal plate and the thickness of a battery pack upper cover need to be increased, so that the weight of a vehicle and the weight of a battery can be increased. The utility model discloses under the condition that only needs to increase miniature support piece, connecting piece and sealing member, just can improve and solve the rigidity problem, the lightweight effect is obvious.
2. The production cost is reduced. As above, the problem can be solved without changing the vehicle layout and structure, only by increasing the conditions of the small-sized support member, the connection member, and the sealing member.
What has been described above is merely the principles and preferred embodiments of the present invention. It should be noted that, for those skilled in the art, on the basis of the principle of the present invention, several other modifications can be made, and the protection scope of the present invention should be considered.
Claims (10)
1. The utility model provides a battery package coupling assembling, casing under battery package upper cover and the battery package, be equipped with the crossbeam on the casing under the battery package, a serial communication port, install support piece on the crossbeam, support piece with be equipped with the sealing member between the battery package upper cover, still include first connecting piece and second connecting piece, first connecting piece is used for connecting the battery package upper cover with support piece will the sealing member compresses tightly, the second connecting piece from last down pass the automobile body floor in proper order the battery package upper cover with support piece connects the three.
2. The battery pack connection assembly of claim 1, wherein the support member comprises a wedge bracket and a mounting table, the wedge bracket is disposed on the cross beam, the mounting table is disposed on top of the wedge bracket, the mounting table defines a first mounting hole and a second mounting hole, the first connecting member is inserted into the first mounting hole, and the second connecting member is inserted into the second mounting hole.
3. The battery pack connecting assembly according to claim 2, wherein the mounting stand is a cylindrical stand, or a square stand.
4. The battery pack connection assembly of claim 2, wherein the first connector is a self-tapping screw, the first mounting holes are screw holes, and there are two first mounting holes;
the second connecting piece is a bolt, the second mounting holes are bolt holes, and one second mounting hole is located between the two first mounting holes.
5. The battery pack connection assembly of claim 2, wherein the sealing element is a sealing ring, and the outer edge of the upper surface of the mounting platform is provided with a ring of sealing groove, and the sealing ring is embedded in the sealing groove.
6. The battery pack connecting assembly according to claim 3, wherein a circular boss is formed on the battery pack upper cover, the circular boss covers the cylindrical table, the top surface of the circular boss is a plane, a third mounting hole and a fourth mounting hole are formed in the top surface, the third mounting hole is aligned with the first mounting hole, and the fourth mounting hole is aligned with the second mounting hole.
7. The battery pack connection assembly according to any one of claims 1 to 6, wherein a sealant is provided between the vehicle body floor and the flanges of the floor cross member.
8. The battery pack connection assembly according to any one of claims 1 to 6, wherein the cross member includes a front cross member and a rear cross member, two of the support members are provided on the front cross member, and one of the support members is provided at the center of the rear cross member.
9. The battery pack connection assembly of claim 8, wherein the two supports on the front cross member are connected to flanges of a front seat cross member of the vehicle body floor.
10. The battery pack connection assembly of claim 8, wherein one of the supports on the rear cross member is connected to a flange of a side member of the vehicle body floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921967168.4U CN210837863U (en) | 2019-11-14 | 2019-11-14 | Battery pack connecting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921967168.4U CN210837863U (en) | 2019-11-14 | 2019-11-14 | Battery pack connecting assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210837863U true CN210837863U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921967168.4U Active CN210837863U (en) | 2019-11-14 | 2019-11-14 | Battery pack connecting assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210837863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248784A (en) * | 2020-10-30 | 2021-01-22 | 上汽通用汽车有限公司 | Battery system connection sealing mechanism, automobile body and automobile |
| WO2023122489A1 (en) * | 2021-12-22 | 2023-06-29 | Bridgestone Americas, Inc. | Composite structure having improved joining component for battery enclosure |
| WO2023130455A1 (en) * | 2022-01-10 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Mounting assembly, battery, electric device, battery manufacturing method and manufacturing apparatus |
-
2019
- 2019-11-14 CN CN201921967168.4U patent/CN210837863U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248784A (en) * | 2020-10-30 | 2021-01-22 | 上汽通用汽车有限公司 | Battery system connection sealing mechanism, automobile body and automobile |
| CN112248784B (en) * | 2020-10-30 | 2022-01-28 | 上汽通用汽车有限公司 | Battery system connection sealing mechanism, automobile body and automobile |
| WO2023122489A1 (en) * | 2021-12-22 | 2023-06-29 | Bridgestone Americas, Inc. | Composite structure having improved joining component for battery enclosure |
| WO2023130455A1 (en) * | 2022-01-10 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Mounting assembly, battery, electric device, battery manufacturing method and manufacturing apparatus |
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