CN209912930U - Pure electric vehicles power battery package structure of considering side collision protection - Google Patents
Pure electric vehicles power battery package structure of considering side collision protection Download PDFInfo
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- CN209912930U CN209912930U CN201920914141.2U CN201920914141U CN209912930U CN 209912930 U CN209912930 U CN 209912930U CN 201920914141 U CN201920914141 U CN 201920914141U CN 209912930 U CN209912930 U CN 209912930U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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Abstract
The utility model relates to a pure electric vehicle power battery pack structure with side collision protection, which comprises a square box-shaped battery frame and a battery module in the battery frame, and is characterized by also comprising at least one pair of slide rails, corresponding slide blocks and a deformable energy-absorbing support piece; the sliding rails are arranged on the opposite side walls in the battery frame in parallel; the sliding block is fixed on the battery module; the deformation energy absorption direction of the supporting piece is parallel to the sliding rail, one end of the supporting piece is fixed on the side wall of the battery frame or one side, facing the side wall of the battery frame, of the sliding block in the sliding rail direction, and the other end of the supporting piece abuts against the sliding block or the side wall of the battery frame. The beneficial effects of the utility model are that can improve pure electric vehicles power battery module anti-invasion ability when taking place abominable side collision accident, reduce the risk that the battery module takes place the weeping accident of starting a fire because of the extrusion of battery frame.
Description
Technical Field
The utility model provides a compromise pure electric vehicles power battery package structure of side collision protection belongs to electric automobile electricity safety protection field.
Background
In recent years, electric vehicles have become the key direction of government development in China due to the influence of multiple factors such as energy safety, environmental protection, technical progress, industry upgrade and the like. Under the promotion of various policies, the electric automobile develops rapidly. However, the rapid development of new things brings new problems. Due to the factors of short development process, incomplete technical development and the like, the safety accidents of the new energy automobile show a rapid development trend, and the personal and property safety of the social public is seriously threatened.
According to statistics, more than 50% of new energy automobile accidents are related to the power battery system. The power battery system is a high-energy carrier, and the stability, reliability and safety of the power battery system determine the reliability and safety of the whole vehicle to a great extent. At present, a host factory or a research institution mostly carries out design and research work of a thermal management system and high-voltage power failure of a power battery system, and lacks a protection design for a battery cell under high-speed collision and large deformation, particularly high-speed side collision accidents. Because the space limits, electric automobile side deformable energy-absorbing structure is less, takes place easily in the high-speed collision and extrudes electric core to take place the battery and strike a fire explosion risk.
In high-speed side collision, the battery pack deforms when the side structure is close to the battery pack body and the side structure deforms greatly, so that the battery core blocks are extruded, and particularly, the battery pack deforms extremely badly when the high-speed side column collision occurs.
There have also been attempts in the prior art to improve upon using various approaches. A collision energy slow-release device for electric automobile battery like application number CN201120422237.0, the device includes power battery and fixes the battery holder on the automobile body, battery holder and power battery sliding connection, be equipped with the spring that acts on power battery and automobile body respectively between power battery and the automobile body. The battery support on be equipped with the slide rail, power battery and battery support realize sliding connection through above-mentioned slide rail. And a fixed arm is also arranged between the power battery and the vehicle body, one end of the fixed arm is fixed on the vehicle body, and the other end of the fixed arm is fixed on the power battery. The securing arm is made of a collapsible material. The device can effectively release collision energy slowly; the collapsible pressure of the collapsible battery longitudinal fixing arm is designed, and the collapsible battery longitudinal fixing arm has good adaptability. But the structure of the fixing arm is dependent on, so that the arrangement of the battery bracket is very inflexible.
Like the quick-witted mounting bracket that charges for electric automobile that application number is CN201810030442.9 again, including setting up installing frame on the chassis, setting are in two clamping unit in the installing frame and be used for fixed protection the closing cap unit of machine charges. The clamping unit comprises an L-shaped groove formed in the inner bottom surface of the mounting frame and limiting columns which are arranged on the bottom plate and the clamping plate respectively and used for limiting sliding on two side surfaces of the L-shaped groove, and the upper and lower pairs of the limiting columns are arranged in two pairs of sliding grooves formed in the two side surfaces of the L-shaped groove in a sliding mode respectively. The storage battery is arranged in a sliding groove on the inner bottom surface of the socket in a sliding mode through a tension spring, one end of the tension spring is arranged on the side face of the storage battery, and the other end of the tension spring is arranged on the side wall of the socket. The poking part comprises a triggering ball head which is arranged at the lower end of the rotating plate and is convexly arranged on the outer side of the poking groove. While providing some protection, it does not accommodate a battery pack, nor does it provide an anti-intrusion effect.
Also a battery mounting structure of application number CN201721400756.0, battery mounting structure includes the battery installation frame, the battery installation frame includes first entablature, second entablature, first bottom end rail, the second bottom end rail through tie-beam interconnect, and sets up first entablature and second entablature between first entablature and second entablature, sets up first longeron and second longeron between first bottom end rail and second bottom end rail, battery mounting structure still includes the crashproof structure that at least one collision side of battery installation frame set up, crashproof structure includes first crashproof crossbeam, first crashproof crossbeam with battery installation frame interval sets up, forms first collapse space. The anti-collision structure can effectively burst and contract the energy-absorbing, and collision energy is through the space buffering that bursts and contract, and the battery installation frame receives less impact, and the protection is installed at the battery of battery installation frame, effectively reduces the battery and receives the possibility that the striking damage short circuit was caught fire. But the energy absorption of the energy absorption device depends on the crumple space, and the requirement on the crumple space is very high when the energy absorption is carried out in collision.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the not enough of prior art, solve and effectively protect the extruded problem of power battery module under the big deformation in high-speed side collision.
In order to achieve the purpose, the invention provides a pure electric vehicle power battery pack structure giving consideration to side collision protection, which comprises a square box-shaped battery frame, a battery module in the battery frame, at least one pair of slide rails, corresponding slide blocks and a deformable energy-absorbing support piece, wherein the slide rails are arranged on the square box-shaped battery frame; the sliding rails are arranged on the opposite side walls in the battery frame in parallel; the sliding block is fixed on the battery module; the deformation energy absorption direction of the supporting piece is parallel to the sliding rail, one end of the supporting piece is fixed on the side wall of the battery frame or one side, facing the side wall of the battery frame, of the sliding block in the sliding rail direction, and the other end of the supporting piece abuts against the sliding block or the side wall of the battery frame.
The sliding rails and the corresponding sliding blocks disclosed herein refer to that each sliding rail is provided with a sliding block which is correspondingly arranged on the sliding rail in a sliding manner.
The phrase "the slide rails are disposed in parallel with each other on the opposite side walls in the battery frame" as disclosed herein means that the paired slide rails are disposed on the different side walls, respectively, which are opposite to each other.
The deformation of the support disclosed herein is energy absorbing, i.e., its collapse direction.
The mounting mode of the supporting piece disclosed by the invention can be that one end of the supporting piece is fixed on the side wall of the battery frame, and the other end of the supporting piece is abutted against the sliding block; one end of the supporting piece is fixed on one side, facing the side wall of the battery frame, of the sliding block in the direction of the sliding rail, and the other end of the supporting piece abuts against the side wall of the battery frame. The abutting means that the two abutting objects are not fixedly connected with each other, and the other end of the supporting piece is a free end.
The deformable energy-absorbing support is a deformable thin-wall beam or other common deformable energy-absorbing structures, and can be collapsed, deformed and absorbed when the stress exceeds a certain threshold value.
Preferably, an elastic piece or a deformable energy-absorbing support piece which stretches along the pressure direction is arranged between the slide block and the other slide block on the same slide rail.
When a plurality of sliding blocks are arranged on the sliding rail, an elastic part or a supporting part can be arranged between the sliding blocks and the sliding rail.
Preferably, the slide rail is parallel to the bottom surface of the battery frame.
Preferably, the slide rail comprises at least one pair of slide block supporting bosses and a guide rail rod I matched with the slide block supporting bosses; the sliding block supporting bosses are fixedly connected to the opposite side walls in the cell frame in parallel; two ends of the guide rail rod I are respectively fixed on the side wall of the battery frame above the sliding block supporting boss; and a gap for the sliding block to slide is reserved between the sliding block supporting lug boss and the corresponding guide rail rod I.
The rail bar is generally in the form of a long sheet.
And a guide space of the slide rail is formed by a gap between the slide block support boss and the guide rail rod I. The upper surface of the sliding block supporting boss and the lower surface of the guide rail rod I are flat, so that the guide is better realized.
Preferably, a gap is reserved between the guide rail rod I and the side wall of the battery frame where the corresponding slide block supporting boss is located; the cross section of the sliding block is L-shaped, the tail end of a transverse section of the L-shaped sliding block is fixed on the battery module and penetrates into a gap between the sliding block supporting boss and the corresponding guide rail rod I, and a vertical section of the L-shaped sliding block penetrates into a gap between the side wall of the battery frame and the guide rail rod I.
The individual guide rail rods I and the individual slider support bosses can form a one-to-one correspondence.
The gap between the battery frame side wall and the guide rail rod I and the gap between the slide block supporting lug boss and the corresponding guide rail rod I for the slide block to slide form a slide rail structure with an L-shaped cavity on the cross section for the slide block to slide in.
Preferably, a guide rail rod II parallel to the guide rail rod I is further arranged between the guide rail rod I and the side wall of the battery frame where the corresponding slide block supporting boss is located, and a gap is reserved between the guide rail rod I and the guide rail rod II; the cross section of the sliding block is L-shaped, the tail end of a transverse section of the L-shaped sliding block is fixed on the battery module and penetrates into a gap between the sliding block supporting boss and the corresponding guide rail rod I, and a vertical section of the L-shaped sliding block penetrates into a gap between the guide rail rod II and the guide rail rod I.
The gap between the guide rail rod II and the guide rail rod I disclosed herein and the gap left between the slide block supporting boss and the corresponding guide rail rod I for the slide block to slide form a slide rail structure with an L-shaped cavity on the cross section for the slide block to slide in.
The guide rail rod I or the guide rail rod II can be connected to a guide rail connecting bracket on the side wall of the battery frame through bolts so as to fix the guide rail rod I or the guide rail rod II on the side wall of the battery frame.
Preferably, a blind hole is arranged above the sliding block supporting boss, and a pressure spring positioning pin is arranged in the blind hole; and the pressure spring positioning pin penetrates into a round hole for positioning under the sliding block.
The pressure spring positioning pin disclosed herein is inserted into the blind hole, and is retracted into the blind hole under the action of pressure, and penetrates out of the opening of the blind hole when the pressure is released, so that the function of the positioning pin is realized.
The compression spring dowel pin is typically configured as a spring top ball.
Preferably, the battery module comprises a battery core, fixing end covers at two sides of the battery core, and a compression-resistant plate for separating the battery core and the battery frame; the sliding block is fixedly connected to the top of the fixed end cover; and two opposite sides of the pressure-resistant plate are fixedly connected with the sliding blocks on the fixed end covers on the two sides of the battery cell respectively.
The fixed end cap top disclosed herein faces the cell frame side wall. In order to be fixedly connected with the sliding block, two opposite edges of the compression-resistant plate can be respectively turned over towards the cell direction to form vertical folding.
Preferably, the battery frame is fixed to the vehicle chassis by a lug on the outer wall.
Through setting up slide rail and slider and support piece for the battery package is whole under the condition that does not occupy the easy collision side space, can realize holistic collision energy-absorbing. Meanwhile, the sliding rails are arranged in parallel, so that the battery module is supported more balance. When the other end of the support is not stressed, the support cannot deform due to stretching, and the collapsing performance of the support is not influenced.
When a plurality of battery modules are arranged in the battery frame, collision energy absorption between the battery modules can be realized through the elastic piece or the supporting piece, and meanwhile, the space between the battery modules is not occupied.
The bottom surface of the battery frame is generally parallel to the bottom surface, so that the sliding rails are parallel to the bottom surface of the battery frame, the support of the battery module is more balanced, the elastic part or the supporting part is not easily affected by collision, and the service life of the elastic part or the supporting part is further prolonged.
The slide rail is formed by matching a slide block supporting boss with a guide rail rod I, so that the moving space of the slide block in the slide rail in the transverse direction is enhanced. Therefore, the collapsing space of the side wall of the battery frame where the slide rail is located is improved, and the slide rail can be arranged on the side walls of different battery frames. And meanwhile, the slider is convenient to mount. Under the condition that the guide rail rod I is flaky, the guide rail rod I also has certain elasticity, and the shock absorption effect is improved.
The slider cross-section is the L type, and the slider supports boss and guide rail pole I for the slider is difficult for deviating from after the installation.
The arrangement of the guide rail rod II avoids the direct friction between the slide block and the side wall, and the service life of the battery frame is prolonged.
When the power battery pack is collided, the ball head of the pressure spring positioning pin is stressed to reach a certain value, the ball head pushes the spring to move downwards, and the positioning pin does not block the sliding block (namely the battery module) to move; and the sliding block is prevented from moving at ordinary times, so that the service life of the elastic piece or the supporting piece is prolonged.
The design of fixed end cover, resistance to compression board further protects the battery package, avoids piercing the damage, also can conduct power to the slider simultaneously.
The lug setting also can promote battery frame's rigidity to a certain extent at the outer wall.
The beneficial effects of the utility model are that can improve pure electric vehicles power battery module anti-invasion ability when taking place abominable side collision accident, reduce the risk that the battery module takes place the weeping accident of starting a fire because of the extrusion of battery frame.
Drawings
Fig. 1 is a schematic structural view of a pure electric vehicle power battery pack with consideration of side collision protection according to the present invention;
fig. 2 is a schematic sectional view of the battery pack structure of the present invention;
fig. 3 is a partial schematic view of the battery pack structure of the present invention at the location pin of the compression spring;
wherein:
1-battery frame 2-slide rail 3-slide block
4-support 5-elastic 6-battery module
7-slide block supporting boss 8-guide rail rod I9-guide rail rod II
10-pressure spring positioning pin 11-battery cell 12-fixed end cover
13-compression-resistant plate 14-lifting lug
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
According to the pure electric vehicle power battery pack structure with consideration of side collision protection shown in fig. 1 to 3, the pure electric vehicle power battery pack structure comprises a square box-shaped battery frame 1, a battery module 6 in the battery frame, at least one pair of slide rails 2, corresponding slide blocks 3 and a deformable energy absorption supporting piece 4; the slide rails 2 are arranged in parallel on opposite side walls in the battery frame 1; the sliding block 3 is fixed on the battery module 6; the deformation energy absorption direction of the support piece 4 is parallel to the sliding rail 2, one end of the support piece 4 is fixed on the side wall of the battery frame or one side of the sliding block facing the side wall of the battery frame in the sliding rail direction, and the other end of the support piece 4 abuts against the sliding block 3 or the side wall of the battery frame 1.
An elastic member 5 or a deformable energy-absorbing support member 4 (not shown in the figures, but the structure can be understood by those skilled in the art according to the description) which extends and contracts along the pressure direction is arranged between the slide block 3 and the other slide block 3 on the same slide rail 2.
The slide rail 2 is parallel to the bottom surface of the battery frame 1.
The slide rail 2 comprises at least one pair of slide block supporting bosses 7 and a guide rail rod I8 matched with the slide block supporting bosses; the sliding block supporting bosses 7 are fixedly connected to the opposite side walls in the cell frame 1 in parallel; two ends of the guide rail rod I8 are respectively fixed on the side wall of the battery frame 1 above the sliding block supporting boss 7; and a gap for the sliding of the sliding block 3 is reserved between the sliding block supporting boss 7 and the corresponding guide rail rod I8.
A guide rail rod II9 parallel to the guide rail rod I8 is further arranged between the guide rail rod I8 and the side wall of the battery frame 1 where the corresponding slide block supporting boss 7 is located, and a gap is reserved between the guide rail rod I8 and the guide rail rod II 9; the cross section of the sliding block 3 is L-shaped, the tail end of the transverse section of the L-shaped is fixed on the battery module 6 and penetrates into the gap between the sliding block supporting boss 7 and the corresponding guide rail rod I8, and the vertical section of the L-shaped penetrates into the gap between the guide rail rod II9 and the guide rail rod I8.
A blind hole is formed above the sliding block supporting boss 7, and a pressure spring positioning pin 10 is arranged in the blind hole; a round hole (not shown in the figure, but understood by those skilled in the art according to the description) is arranged below the sliding block 3 for the pressure spring positioning pin 10 to penetrate into to form a positioning.
The battery module 6 comprises a battery cell 11, fixed end covers 12 at two sides of the battery cell 11 and a compression-resistant plate 13 for separating the battery cell 11 from the battery frame 1; the sliding block 3 is fixedly connected to the top of the fixed end cover 12; two opposite sides of the pressure-resistant plate 13 are respectively fixedly connected with the sliding blocks 3 on the fixed end covers 12 at two sides of the battery core.
The battery frame 1 is fixed to the vehicle chassis by means of lifting lugs 14 on the outer wall.
In addition, although not directly shown in the drawings, it is understood by those skilled in the art that a gap is left between the rail bar I8 and the side wall of the battery frame 1 where the corresponding slider support boss 7 is located; the cross section of the sliding block 3 is L-shaped, the tail end of the transverse section of the L-shaped is fixed on the battery module 6 and penetrates into the gap between the sliding block supporting boss 7 and the corresponding guide rail rod I8, and the vertical section of the L-shaped can directly penetrate into the gap between the side wall of the battery frame 1 and the guide rail rod I8 in a simplified scheme.
The mechanism of the side protection of the battery pack is as follows: supposing that the power battery pack is collided, the side wall of the battery frame 1 is invaded into the battery pack, when the invasion amount reaches a certain value, the side wall of the battery frame 1 starts to contact with the extrusion plate 13, the side wall is further invaded to push the extrusion plate 13 to move towards a non-collision side, when the ball head of the pressure spring positioning pin 10 is stressed to reach a certain value, the ball head pushes the spring to move downwards, the positioning pin does not obstruct the movement of the battery module 6, the battery module 6 integrally pushes the elastic piece 5 to extrude a gap between the modules, when the gap between the modules disappears completely, the elastic piece 5 can not be compressed, the elastic piece 5 further pushes the next module to repeat the module movement process until the support piece 4 of the non-collision side edge module is collapsed and deformed, and the pressure resisting plate 13 of the non-. Thereby improve power battery module 6 anti-intrusion ability when pure electric vehicles takes place abominable side collision accident, reduce battery module 6 and take place the risk of weeping accident of starting a fire because of the extrusion of battery frame.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, and that various changes and modifications may be made, which are within the scope of the appended claims.
Claims (9)
1. A pure electric vehicle power battery pack structure giving consideration to side collision protection comprises a square box-shaped battery frame and a battery module in the battery frame, and is characterized by further comprising at least one pair of slide rails, corresponding slide blocks and deformable energy-absorbing supporting pieces; the sliding rails are arranged on the opposite side walls in the battery frame in parallel; the sliding block is fixed on the battery module; the deformation energy absorption direction of the supporting piece is parallel to the sliding rail, one end of the supporting piece is fixed on the side wall of the battery frame or one side, facing the side wall of the battery frame, of the sliding block in the sliding rail direction, and the other end of the supporting piece abuts against the sliding block or the side wall of the battery frame.
2. The power battery pack structure according to claim 1, wherein an elastic member or a deformable energy-absorbing support member that stretches in the pressure direction is provided between the slide block and another slide block on the same slide rail.
3. The power battery pack structure of claim 1, wherein the slide rails are parallel to the bottom surface of the battery frame.
4. The power battery pack structure of claim 1, wherein the slide rail comprises at least one pair of slider support bosses and guide rail rods I mating with the slider support bosses; the sliding block supporting bosses are fixedly connected to the opposite side walls in the cell frame in parallel; two ends of the guide rail rod I are respectively fixed on the side wall of the battery frame above the sliding block supporting boss; and a gap for the sliding block to slide is reserved between the sliding block supporting lug boss and the corresponding guide rail rod I.
5. The power battery pack structure of claim 4, wherein a gap is left between the guide rail rod I and the side wall of the battery frame where the corresponding slider support boss is located; the cross section of the sliding block is L-shaped, the tail end of a transverse section of the L-shaped sliding block is fixed on the battery module and penetrates into a gap between the sliding block supporting boss and the corresponding guide rail rod I, and a vertical section of the L-shaped sliding block penetrates into a gap between the side wall of the battery frame and the guide rail rod I.
6. The power battery pack structure according to claim 4, wherein a guide rail rod II parallel to the guide rail rod I is further provided between the guide rail rod I and the battery frame side wall where the corresponding slider support boss is located, and a gap is left between the guide rail rod I and the guide rail rod II; the cross section of the sliding block is L-shaped, the tail end of a transverse section of the L-shaped sliding block is fixed on the battery module and penetrates into a gap between the sliding block supporting boss and the corresponding guide rail rod I, and a vertical section of the L-shaped sliding block penetrates into a gap between the guide rail rod II and the guide rail rod I.
7. The power battery pack structure of claim 4, wherein a blind hole is formed above the slider support boss, and a pressure spring positioning pin is arranged in the blind hole; and the pressure spring positioning pin penetrates into a round hole for positioning under the sliding block.
8. The power battery pack structure of claim 1, wherein the battery module comprises a cell, fixing end caps at two sides of the cell, and a compression plate for separating the cell from a battery frame; the sliding block is fixedly connected to the top of the fixed end cover; and two opposite sides of the pressure-resistant plate are fixedly connected with the sliding blocks on the fixed end covers on the two sides of the battery cell respectively.
9. The power-battery pack structure of claim 1, wherein the battery frame is secured to the vehicle chassis by a lifting lug on the outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914141.2U CN209912930U (en) | 2019-06-18 | 2019-06-18 | Pure electric vehicles power battery package structure of considering side collision protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920914141.2U CN209912930U (en) | 2019-06-18 | 2019-06-18 | Pure electric vehicles power battery package structure of considering side collision protection |
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| CN209912930U true CN209912930U (en) | 2020-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117755063A (en) * | 2024-02-22 | 2024-03-26 | 亿恩新动力科技(山东)有限公司 | New forms of energy power battery box protector |
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2019
- 2019-06-18 CN CN201920914141.2U patent/CN209912930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117755063A (en) * | 2024-02-22 | 2024-03-26 | 亿恩新动力科技(山东)有限公司 | New forms of energy power battery box protector |
| CN117755063B (en) * | 2024-02-22 | 2024-04-16 | 亿恩新动力科技(山东)有限公司 | New forms of energy power battery box protector |
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