CN209312835U - For the front side wall of battery pack lower case, battery pack lower case and battery pack - Google Patents
For the front side wall of battery pack lower case, battery pack lower case and battery pack Download PDFInfo
- Publication number
- CN209312835U CN209312835U CN201822111672.6U CN201822111672U CN209312835U CN 209312835 U CN209312835 U CN 209312835U CN 201822111672 U CN201822111672 U CN 201822111672U CN 209312835 U CN209312835 U CN 209312835U
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- CN
- China
- Prior art keywords
- side wall
- front side
- wall portion
- battery pack
- lower case
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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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- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to vehicle manufacture fields, it provides a kind of for the front side wall of battery pack lower case, battery pack lower case and battery pack, the front side wall for battery pack lower case includes sequentially connected first front side wall portion, middle front side wall portion and the second front side wall portion, first front side wall portion and second front side wall portion are respectively with the middle front side wall portion by being welded to connect, wherein the middle front side wall portion is formed using high-pressure casting.Front side wall described in the utility model for battery pack lower case is welded by the first front side wall portion, middle front side wall portion and the second front side wall portion three parts, production cost can be saved to greatest extent, light-weighted purpose is reached, and middle front side wall portion is formed using high-pressure casting, the production of the shape of high-pressure casting technics comparing complexity easy to accomplish, so that lower case front side wall can be realized multifunction, the design etc. of such as high voltage interface and low-voltage interface on front side wall may be implemented.
Description
Technical field
The utility model relates to technical field of vehicle manufacture, in particular to a kind of front side wall for battery pack lower case,
Battery pack lower case and battery pack.
Background technique
Contemporary automotive industry is being had a revolutionary change, i.e., conventional fuel oil automobile is gradually by new-energy automobile institute
Instead of, wherein pure electric automobile as new-energy automobile one kind rising, many transmission fuel vehicle platforms directly pass through by
Engine structure is changed to power battery pack arrangement, car power source is changed to battery by fuel oil, it is seen then that battery pack is electronic
The important component part of automobile.
In process of production, lightweight will be related to the energy density of battery pack to battery pack, and then be related to new energy
Subsidy, power resources of the battery as vehicle, security performance is extremely important, how to improve the security performance of battery pack, will
Top priority as battery pack structure design.
An important load-bearing part of the lower case as battery pack, need to be arranged thereon high voltage interface, low-voltage interface, etc. electricity
The structures such as position connection sheet, the front side wall of lower case is typically designed to an en-block construction in the prior art, and high voltage interface, low pressure connect
The structures such as mouth, equipotential link piece are arranged on front side wall, and this whole structure designs so that front side wall weight is big, at
This height, and be also difficult to meet the requirements in intensity.
Utility model content
In view of this, the utility model is directed to a kind of front side wall for battery pack lower case, with maximum
Production cost is saved, light-weighted purpose has been reached.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of front side wall for battery pack lower case, the front side wall include sequentially connected first front side wall portion, in
Front side wall portion and the second front side wall portion, first front side wall portion and second front side wall portion respectively with the middle front side wall portion
By being welded to connect, wherein the middle front side wall portion is formed using high-pressure casting.
Further, the left front sidewall portion is identical with the forward right side wall structure and before being symmetrical set in described
The two sides of sidewall portion.
Further, the left front sidewall portion and the forward right side wall portion are formed by the profile of hollow structure.
Further, the high voltage interface and use of the high-voltage wiring harness stretching for battery pack are offered in the middle front side wall portion
In the low-voltage interface that the low voltage wiring harness of battery pack stretches out.
Further, it is provided in first front side wall portion and second front side wall portion for installing the closure height
Crimp the mounting structure of the backplate of mouth and the low-voltage interface.
Further, the mounting structure includes being respectively set in first front side wall portion and second front side wall portion
Backplate installation sheet.
Further, first front side wall portion and second front side wall portion include sidewall body and along the side wall
Mounting portion made of main body extends far from the outside of the battery pack lower case, the backplate installation sheet are arranged in the mounting portion
On.
Further, second front side wall portion is equipped with the equipotential link piece for being connected with vehicle body.
Compared with the existing technology, battery pack lower case front side wall described in the utility model has the advantage that
Battery pack lower case front side wall described in the utility model is by the first front side wall portion, middle front side wall portion and the second front side
Wall portion three parts are welded, and can save production cost to greatest extent, have reached light-weighted purpose, and middle front side wall portion
It is formed using high-pressure casting, the production of the shape of high-pressure casting technics comparing complexity easy to accomplish, so that on front side of lower case
Wall can be realized multifunction, and the design etc. of such as high voltage interface and low-voltage interface on front side wall may be implemented.
The another object of the utility model is to propose a kind of battery pack lower case, and the battery pack lower case includes above-mentioned
Any front side wall for battery pack lower case.
The last one purpose of the utility model is to propose that a kind of battery pack, the battery pack include upper housing, lower casing
Body and the battery modules being arranged between the upper housing and the lower case, wherein the lower case uses above-mentioned battery
Packet lower case.
The battery pack lower case, the battery pack and above-mentioned battery pack lower case front side wall are had compared with the existing technology
Some advantages are identical, and details are not described herein.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The exemplary embodiment and its explanation of type are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 is the schematic perspective view of battery pack lower case described in the utility model embodiment；
Fig. 2 is the front side wall part enlarged structure schematic diagram of Fig. 1；
Fig. 3 is the planar structure schematic diagram of the battery pack lower case of Fig. 1；
Fig. 4 is the structural schematic diagram of forward right side wall portion in the battery pack lower case of Fig. 1；
Fig. 5 is the side view of the forward right side wall portion of Fig. 3；
Fig. 6 is the battery pack lower case front side wall and cover mounting structure rearview of Fig. 2；
Fig. 7 is the battery pack lower case front side wall and cover mounting structure top view of Fig. 2；
Fig. 8 is battery pack lower case front side wall and cover mounting structure schematic diagram.
Description of symbols:
1-the first front side wall portion, 2-middle front side wall portions, the 3-the second front side wall portion, 31-sidewall bodies, 32-installations
Portion, 4-high voltage interfaces, 5-low-voltage interfaces, 6-backplate installation sheets, 7-backplates, 8-equipotential link pieces.
Specific embodiment
It should be noted that in the absence of conflict, the spy in embodiment and embodiment in the utility model
Sign can be combined with each other.
The utility model is described in detail below with reference to the accompanying drawings and in conjunction with embodiment.
In conjunction with Fig. 1-Fig. 3, the utility model provides a kind of front side wall for battery pack lower case, the front side wall packet
Include sequentially connected first front side wall portion 1, middle front side wall portion 2 and the second front side wall portion 3, first front side wall portion 1 and described
Second front side wall portion 3 is respectively with the middle front side wall portion 2 by being welded to connect, wherein the middle front side wall portion 2 uses high die casting
It makes.
Battery pack lower case front side wall described in the utility model is by the first front side wall portion, middle front side wall portion and the second front side
Wall portion three parts are welded, compared with the existing technology in a monolith front side wall structure for can save life to greatest extent
Cost is produced, has reached light-weighted purpose, and middle front side wall portion is formed using high-pressure casting, high-pressure casting technics comparing is easy real
Such as high voltage interface may be implemented so that lower case front side wall can be realized multifunction in the production of existing complicated shape
With design etc. of the low-voltage interface on front side wall.
Wherein, for convenience of manufacturing, the left front sidewall portion 1 is identical with 3 structure of forward right side wall portion and in symmetrical
The two sides of the middle front side wall portion 2 are set.
Further, in order to increase intensity, integrally-built security reliability, 1 He of the first front side wall portion are improved
Second front side wall portion 3 is formed by the profile of hollow structure, specifically for, first front side wall portion 1 and described
Two front side wall portions 3 are formed by profile extrusion.
Preferably, first front side wall portion, middle front side wall portion and the second front side wall portion three parts use CMT welding procedure
It is welded, is welded by CMT welding procedure so that the hot throughput rate in welding process is smaller, the front side wall being finally welded is strong
Du Genggao is unlikely to deform.
Usually, it needs to be provided with high voltage interface and low-voltage interface, this embodiment party on the front side wall of battery pack lower case
In formula, the high voltage interface 4 of the high-voltage wiring harness stretching for battery pack is offered in the middle front side wall portion 2 and for battery pack
Low voltage wiring harness stretch out low-voltage interface 5.The surface of installation height crimping mouth is machined out, and guarantees that the high-low pressure interface is close
The flatness and roughness on the surface of cover, conducive to the reliability for improving sealing.
It is this convenient for forming high voltage interface 4 and low-voltage interface 5 since the middle front side wall portion 2 is formed using high-pressure casting
Through-hole structure, and it is higher using although strength of parts that profile extrusion technique produces, but through-hole structure can not be formed, because
This, the middle front side wall portion in present embodiment is preferably formed using high-pressure casting, and first front side wall portion 1 and described second
Front side wall portion 3 is preferably formed using profile extrusion, and design requirement is not only met, but also ensure that the entirety of front side wall to the greatest extent
Intensity.
Since battery pack is arranged in below floor, in use process, the high-low pressure harness of battery pack, which is exposed to, outer can have peace
Full hidden danger is drenched or sludge blockage will lead to battery pack abnormal work, it is contemplated that improve the peace of battery pack when vehicle is paddled
Full performance needs to be arranged backplate and protects high-low pressure interface and harness.Specifically, first front side wall portion 1 and described
The installation knot for installing the backplate 7 for blocking the high voltage interface 4 and the low-voltage interface 5 is provided in second front side wall portion 3
Structure.
Specifically, the mounting structure includes setting respectively in first front side wall portion 1 and second front side wall portion 3
The backplate installation sheet 6 set.The design of the backplate installation sheet 6 saves material, has saved cost, while avoiding in front side wall
What profile extrusion technique was difficult to realize cuts type production.It is to be appreciated that the installation site and quantity of the backplate installation sheet 6 are not made
Concrete restriction should not be taken to limit the protection scope of the utility model, only need to guarantee to fix the backplate 7.This reality
It applies in mode, is set in first front side wall portion 1 there are two the backplate installation sheet 6, second front side wall portion 3 is equipped with one
A backplate installation sheet 6.
Further, for convenience of the installation of the backplate 7, in first front side wall portion 1 and second front side wall portion 3
The structure matched with the backplate 7 need to be provided with.Specifically, in conjunction with Fig. 4, Fig. 5, first front side wall portion 1 and described
Second front side wall portion 3 includes sidewall body 31 and extends along the sidewall body 31 far from the outside of the battery pack lower case
Made of mounting portion 32, the backplate installation sheet 6 is arranged on the mounting portion 32.
In conjunction with Fig. 6-8, when installation, described 7 one end of backplate is overlapped on the mounting portion 32, and is pacified by the backplate
The backplate 7 is fixed load 6, and the other end of the backplate 7 is fixed on vehicle body, thus by the high voltage interface 4 and institute
5 isolating and protecting of low-voltage interface is stated, the security performance of battery pack is improved.
It is worth noting that, battery pack needs to guarantee equipotential link in design, equipotential link here is referred to
All accessible metallic conductions on equipotential link and battery pack housing between battery pack housing and vehicle complete vehicle shell
Equipotential link design between part and battery pack housing.
Therefore, for realize equipotential link, the second front side wall portion 3 described in the utility model be equipped with for vehicle body phase
Equipotential link piece 8 even.All metallic conduction parts are connected with the equipotential link piece on battery pack housing, while institute
It states equipotential link piece 8 and vehicle body is bolted together, to realize the equipotential link of battery pack and vehicle, protect
The security performance of battery pack is demonstrate,proved.As it can be seen that the design form of the equipotential link piece 8 of present embodiment can mitigate lower case
Weight, while production cost has been saved again.
The utility model second aspect provides a kind of battery pack lower case, and the battery pack lower case includes above-mentioned any
The battery pack lower case front side wall.The battery pack lower case and above-mentioned battery pack lower case front side wall are relative to existing skill
Advantage possessed by art is identical, and details are not described herein.
The utility model finally additionally provides a kind of battery pack, and the battery pack includes that upper housing, lower case and setting exist
Battery modules between the upper housing and the lower case, wherein the above-mentioned battery pack lower case of the lower case.
Further, the battery pack includes backplate 7, and one end of the backplate is overlapped on 1 He of the first front side wall portion
On the mounting portion 32 of second front side wall portion 3, and the backplate 7 is fixed by the backplate installation sheet 6, institute
The other end for stating backplate 7 is fixed on vehicle body, thus by lower case in front side wall portion 2 the high voltage interface 4 and the low pressure
5 isolating and protecting of interface gets up, and effectively increases the general safety performance of battery pack.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (10)
1. a kind of front side wall for battery pack lower case, which is characterized in that including sequentially connected first front side wall portion (1),
Middle front side wall portion (2) and the second front side wall portion (3), first front side wall portion (1) and second front side wall portion (3) respectively with
The middle front side wall portion (2) is by being welded to connect, wherein the middle front side wall portion (2) is formed using high-pressure casting.
2. the front side wall according to claim 1 for battery pack lower case, which is characterized in that first front side wall portion
(1) identical with the second front side wall portion (3) structure and be symmetrical set in the two sides of the middle front side wall portion (2).
3. the front side wall according to claim 1 for battery pack lower case, which is characterized in that first front side wall portion
(1) it is formed with second front side wall portion (3) by the profile of hollow structure.
4. the front side wall according to claim 1 for battery pack lower case, which is characterized in that the middle front side wall portion
(2) offered on for battery pack high-voltage wiring harness stretching high voltage interface (4) and for battery pack low voltage wiring harness stretch out
Low-voltage interface (5).
5. the front side wall according to claim 4 for battery pack lower case, which is characterized in that first front side wall portion
(1) and in second front side wall portion (3) it is provided with and blocks the high voltage interface (4) and the low-voltage interface (5) for installing
Backplate (7) mounting structure.
6. the front side wall according to claim 5 for battery pack lower case, which is characterized in that the mounting structure includes
Respectively arranged backplate installation sheet (6) on first front side wall portion (1) and second front side wall portion (3).
7. the front side wall according to claim 6 for battery pack lower case, which is characterized in that first front side wall portion
(1) and second front side wall portion (3) include sidewall body (31) and along the sidewall body (31) far from the battery pack
Mounting portion (32) made of the outside of lower case extends, the backplate installation sheet (6) are arranged on the mounting portion (32).
8. the front side wall according to any one of claims 1-7 for battery pack lower case, which is characterized in that described
Second front side wall portion (3) is equipped with the equipotential link piece (8) for being connected with vehicle body.
9. a kind of battery pack lower case, which is characterized in that the battery pack lower case includes any one of claim 1-8 institute
The front side wall for battery pack lower case stated.
10. a kind of battery pack, which is characterized in that the battery pack include upper housing, lower case and setting the upper housing with
Battery modules between the lower case, wherein the lower case is battery pack lower case as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111672.6U CN209312835U (en) | 2018-12-14 | 2018-12-14 | For the front side wall of battery pack lower case, battery pack lower case and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822111672.6U CN209312835U (en) | 2018-12-14 | 2018-12-14 | For the front side wall of battery pack lower case, battery pack lower case and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209312835U true CN209312835U (en) | 2019-08-27 |
Family
ID=67677100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822111672.6U Active CN209312835U (en) | 2018-12-14 | 2018-12-14 | For the front side wall of battery pack lower case, battery pack lower case and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209312835U (en) |
-
2018
- 2018-12-14 CN CN201822111672.6U patent/CN209312835U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |