CN217009443U - Two-wheeled electric vehicle battery system with novel seal structure - Google Patents
Two-wheeled electric vehicle battery system with novel seal structure Download PDFInfo
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- CN217009443U CN217009443U CN202122892336.1U CN202122892336U CN217009443U CN 217009443 U CN217009443 U CN 217009443U CN 202122892336 U CN202122892336 U CN 202122892336U CN 217009443 U CN217009443 U CN 217009443U
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Abstract
The utility model discloses a two-wheeled electric vehicle battery system with a novel sealing structure, which comprises a battery lower box body; the battery module is inserted into the lower box body of the battery; the battery module comprises a module lower box body and a module upper cover; the module lower box body is buckled with the module upper cover up and down; the top of the module lower box body is provided with a battery module main body; the top surface of the lower module box body is bonded with the bottom surface of the upper module cover through sealant, and a hollow sealed space is formed between the lower module box body and the upper module cover; a circle of butt joint grooves are formed in the middle of the top of the side plate on the periphery of the lower box body of the module in a surrounding mode; the middle position of the bottom of the side plate on the periphery of the module upper cover is circumferentially provided with a butt joint bulge; when the lower box body of the module and the upper cover of the module are buckled up and down, sealant is filled into the butt joint groove in advance, and the butt joint groove is spliced with the butt joint bulge. This practicality can reduce the shared size space of seal structure on the basis of the sealing performance of guaranteeing battery system and bulk strength, improves the whole space utilization of battery system.
Description
Technical Field
The utility model relates to the technical field of lithium ion power battery systems, in particular to a two-wheeled electric vehicle battery system with a novel sealing structure.
Background
The lithium ion battery has the advantages of high specific energy, more recycling times, long storage time and the like, is widely applied to portable electronic equipment (such as mobile phones, digital video cameras and portable computers), and is also widely applied to large and medium-sized electric equipment such as electric automobiles, electric bicycles, electric tools and the like, so that the performance requirement on the lithium ion battery is higher and higher.
At present, with the increase of the requirements of two-wheeled electric vehicles, the common sealing strip sealing structure adopted by the traditional battery system can not meet the market and functional requirements of small size and low cost of a battery pack.
Traditional battery system generally adopts the sealed structure of turn-ups between upper cover and the lower box, and the size space that seal structure need occupy is more, leads to showing the increase of battery box volume to be unfavorable for battery system's suitability. Meanwhile, the size of the system control module of the current two-wheeled electric vehicle is gradually increased due to the increase of the functional modules, so that higher challenges are provided for the space utilization rate of a battery system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a two-wheeled electric vehicle battery system with a novel sealing structure aiming at the technical defects in the prior art.
Therefore, the utility model provides a two-wheeled electric vehicle battery system with a novel sealing structure, which comprises a hollow battery lower box body;
the right side of the battery lower box body is provided with an opening;
the battery module is inserted into the lower box body of the battery from right to left;
the battery module comprises a module lower box body and a module upper cover;
the opening of the lower box body of the module is upward; the opening of the upper cover of the module is downward;
the module lower box body and the module upper cover are the same in shape and size and are distributed in an up-and-down symmetrical mode;
the module lower box body and the module upper cover are buckled together;
the top of the module lower box body is provided with a battery module main body;
the battery module main body comprises a plurality of battery cores which are longitudinally arranged in parallel;
the front side, the rear side, the left side and the right side of the battery module main body are respectively provided with a vertically distributed module reinforcing rib plate;
the bottom of the module reinforcing rib plate is fixedly connected to the top of the module lower box body;
a module carrier disposed at the top of the battery module main body;
a battery control module is fixedly arranged on the module reinforcing rib plate on the right side of the battery module main body;
the top surface of the module lower box body is bonded with the bottom surface of the module upper cover through sealing glue, and a hollow sealing space is formed between the module lower box body and the module upper cover;
the battery module main body, the module carrier, the module reinforcing rib plate and the battery control module are positioned in the sealed space;
the right end part of the battery lower box body is fixedly connected with the left end part of one battery upper cover through a plurality of fasteners;
a circle of butt joint groove is arranged at the middle position of the top of the side plate on the periphery of the lower box body of the module in a surrounding manner;
a circle of butt joint bulges are circumferentially arranged at the middle position of the bottom of the side plate at the periphery of the module upper cover;
when the lower box body of the module and the upper cover of the module are buckled up and down, sealant is filled into the butt joint groove in advance, and the butt joint groove is spliced with the butt joint bulge.
Preferably, the nickel sheet on the module carrier is fixed with the pole at the top of the battery core through laser welding.
Preferably, the overall shape of the lower battery box is a cuboid shape;
the edges of the front side and the rear side of the top and the front side and the rear side of the bottom of the lower battery box body are edges subjected to arc chamfering treatment.
Preferably, any two adjacent module reinforcing rib plates are connected;
the module reinforcing rib plate on the right side of the battery module main body is fixedly connected with the battery control module through a plurality of screws;
the whole shape of the module lower box body and the module upper cover is in the shape of a right-angled triangular prism.
Preferably, the middle part of the top surface of the right end of the lower box body of the module and the middle part of the bottom surface of the right end of the upper cover of the module are respectively provided with semicircular power line grooves which correspond up and down in position;
the semicircular power line grooves on the module lower box body and the module upper cover are combined up and down to form a circular power line groove for leading out a power line on the battery module main body;
when the circular power line groove leads out the power lines on the battery module main body, sealant is filled in gaps between the circular power line groove and the power lines on the battery module main body.
Preferably, the bottom of the module carrier is provided with a limiting groove at a position corresponding to the top of each battery cell;
and the top of one battery cell is embedded into the limiting groove.
Preferably, the top of the module carrier is provided with a plurality of nickel sheet limiting grooves and a plurality of sampling wire harness limiting grooves;
each nickel sheet limiting groove is used for limiting one nickel sheet welded on the top of one battery cell;
the nickel sheet is connected with the sampling wire harness.
Preferably, reinforcing ribs distributed circumferentially are arranged on the peripheral edge of the module carrier;
when the module lower box body and the module upper cover are buckled up and down, the peripheral outer side surfaces of the reinforcing ribs are contacted with the peripheral inner cavity wall of the module upper cover.
Preferably, after the battery module is inserted into the lower battery case from right to left, the sealant is filled in a gap between the peripheral edge of the right side of the battery module and the peripheral edge of the right side of the lower battery case.
Compared with the prior art, the two-wheel electric vehicle battery system with the novel sealing structure has the advantages that the structural design is scientific, the size and the space occupied by the sealing structure can be further reduced on the basis of ensuring the sealing performance and the overall strength of the battery system, the overall space utilization rate of the battery system is improved, the adaptability of the battery system is enhanced, and the two-wheel electric vehicle battery system with the novel sealing structure has great practical significance.
Drawings
Fig. 1 is a three-dimensional exploded view of a battery system of a two-wheeled electric vehicle with a novel sealing structure according to the present invention;
FIG. 2 is a schematic view of the installation state of a lower case and a battery module main body of a two-wheeled electric vehicle battery system with a novel sealing structure according to the present invention;
fig. 3 is a schematic diagram of a battery upper cover and a module lower case with a battery module main body arranged on the top thereof, in a two-wheeled electric vehicle battery system with a novel sealing structure according to the present invention;
fig. 4 is a schematic view of a battery module of a two-wheeled electric vehicle with a novel sealing structure, which is about to be mounted on a lower battery case according to the present invention;
FIG. 5 is a schematic view of an assembled state of an embodiment of a two-wheeled electric vehicle battery system with a novel sealing structure provided by the present invention;
fig. 6 is a schematic diagram illustrating a connection state between a module carrier and a battery module main body including a plurality of battery cells in a two-wheeled electric vehicle battery system having a novel sealing structure according to the present invention;
in the figure, 1 is a battery lower box body, 2 is a module lower box body, 3 is a module reinforcing rib plate, 4 is a battery core, and 5 is a battery control module;
6 is a battery upper cover, 7 is a module upper cover, 8 is a power terminal, 9 is a 4G module, and 10 is a module carrier;
and 11 is a fastener.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 6, the present invention provides a two-wheeled electric vehicle battery system having a novel sealing structure, including a hollow battery lower case 1;
the right side opening of the battery lower box body 1 (other surfaces are sealed);
the battery module 100 is inserted into the battery lower box body 1 from right to left;
a battery module 100 including a module lower case 2 and a module upper cover 7;
the opening of the module lower box body 2 is upward; the opening of the module upper cover 7 is downward;
the module lower box body 2 and the module upper cover 7 are the same in shape and size and are distributed in an up-and-down symmetrical mode;
the module lower box body 2 and the module upper cover 7 are buckled together up and down;
the top of the module lower box body 2 is provided with a battery module main body;
the battery module main body comprises a plurality of battery cores 4 which are longitudinally arranged in parallel;
the front side, the rear side, the left side and the right side of the battery module main body are respectively provided with a vertically distributed module reinforcing rib plate 3;
the bottom of the module reinforcing rib plate 3 is fixedly connected (for example, welded or connected through bolts) with the top of the module lower box body 2;
a module carrier 10 disposed at the top of the battery module main body;
a battery control module 5 (the existing battery control module) is fixedly arranged on the module reinforcing rib plate 3 on the right side of the battery module main body;
the top surface of the module lower box body 2 is bonded with the bottom surface of the module upper cover 7 through sealing glue, and a hollow sealing space is formed between the module lower box body 2 and the module upper cover 7, so that the air tightness is ensured;
the battery module main body, the module carrier 10, the module reinforcing rib plate 3 and the battery control module 5 are positioned in the sealed space;
the right end of the battery lower box body 1 is fixedly connected with the left end of one battery upper cover 6 through a plurality of fasteners 11 (such as screws);
it should be noted that the top surface of the module lower case 2 and the bottom surface of the module upper cover 7 are bonded and fixed by the sealant, the power line is led out, and after the sealant is solidified, the whole is put into the battery lower case 1; the right end part of the lower box body 1 and the left end part of the upper battery cover 6 are fixed through a plurality of fasteners 11, so that the stability and reliability of the connecting structure are guaranteed.
In the present invention, the battery control module 5 is an existing battery control module, for example, a control module manufactured by zhhai subohart energy technology ltd and having a model number of SBHT-20S/40A may be used to implement sampling and intelligent dynamic management of the battery pack.
In specific implementation, referring to fig. 6, the 10PIN and 12PIN sockets on the battery control module 5 are connected to the sampling harness 102 plug corresponding to the module, so as to implement module voltage sampling and control. The battery control module, as an existing control module, is connected to the battery module and plays a role, which is not described herein again for the prior art.
In the utility model, the lower battery box 1 is an aluminum profile box.
In the present invention, as shown in fig. 2, the lower box 2 of the module is a mold-opened plastic part to ensure the dimensional and structural stability.
In the concrete realization, module carrier 10, can adopt current ABS-10GF (glass fiber) material, through whole injection moulding, put into module box 2 down when a plurality of electric cores 4, module carrier 10 is spacing to electric core 4 at the horizontal direction, module carrier 10 can support nickel piece 101 and sampling pencil 102 spacing in module welding process, box 2 and module upper cover 7 sealed back under the module, module carrier 10 contacts with module upper cover 7, can carry on spacingly to electric core 4 in vertical direction.
In particular, the bottom of the module carrier 10 is provided with a limiting groove at a position corresponding to the top of each battery cell 4;
in the spacing groove, the top of a battery cell 4 is embedded.
In particular, a plurality of nickel sheet limiting grooves and a plurality of sampling wire harness limiting grooves are formed in the top of the module carrier 10;
each nickel sheet limiting groove is used for limiting one nickel sheet 101 welded on the top of one battery cell 4;
the nickel plate 101 is connected to a sampling beam 102.
In a specific implementation, referring to fig. 6, the module carrier 10 is provided with reinforcing ribs 103 distributed around the periphery thereof;
when the module lower box body 2 and the module upper cover 7 are buckled up and down, the peripheral outer side surfaces of the reinforcing ribs 103 are contacted with the peripheral inner cavity walls of the module upper cover 7.
In the utility model, in a specific implementation, the nickel sheet 101 on the module carrier 10 and the pole at the top of the battery cell 4 are fixed by laser welding.
What need to explain is, place on electric core 4 when module carrier 10, the spacing groove of self fashioned electric core in module carrier 10 bottom can be spacing and keep electric core interval with electric core 4 in the horizontal direction, place nickel piece 101 after will prewelding on module carrier 10 with sampling pencil 102 in order, carry out the prefixing through module carrier 10 from the spacing groove of taking, nickel piece 101 is fixed into whole with electric core 4 laser welding. The module carrier 10 can be placed in the cavity of the module lower housing 2 and be horizontally restrained. When the module lower box body 2 and the module upper cover 7 are sealed and fixed through sealant, the reinforcing ribs on the peripheral edge of the module carrier 10 just contact the inner cavity wall of the module upper cover 7, so that the switching and supporting functions of the module carrier 10 are realized.
Note that, by fixing the plurality of nickel plates 101 to the plurality of battery cells 4 by laser welding, a series function between the battery cells can be realized, and a system circuit can be maintained. The nickel sheet 101 and the sampling wire harness 102 are fixed by ultrasonic welding, and the sampling wire harness 102 is connected with the battery control module 5. After the nickel plate 101 and the battery cell 4 are fixed by laser welding, the voltage of each battery cell can be sampled, and the battery control module 5 controls the system according to the sampling information.
In the utility model, in particular, the overall shape of the lower battery box body 1 is a cuboid;
edges of the front side and the rear side of the top and the front side and the rear side of the bottom of the battery lower box body 1 are edges processed by arc chamfering, so that the attractiveness of the box body is enhanced, and the collision damage is avoided.
In the present invention, any two adjacent module reinforcing rib plates 3 are connected (by bolts or directly welded).
In the present invention, in a concrete implementation, the module reinforcing rib plate 3 on the right side of the battery module main body is fixedly connected to the battery control module 5 through a plurality of fasteners 11 (e.g., screws).
In the present invention, the overall shape of the module lower case 2 and the module upper cover 7 is a right-angled triangular prism shape.
In the utility model, in the concrete implementation, a circle of butt joint grooves are arranged at the middle positions of the tops of side plates on the periphery of the lower box body 2 of the module in a surrounding manner;
a circle of butt joint bulges are circumferentially arranged at the middle positions of the bottoms of the side plates on the periphery of the module upper cover 7;
when the module lower box body 2 and the module upper cover 7 are buckled up and down, sealant is filled into the butt joint groove in advance, and the butt joint groove is inserted into the butt joint bulge.
Therefore, according to the utility model, through the effects of the butt joint bulge, the butt joint groove and the sealant, the sealing performance of a battery system can be ensured, and the size space occupied by the sealing structure is reduced.
In the concrete implementation, the middle part of the top surface of the right end of the module lower box body 2 and the middle part of the bottom surface of the right end of the module upper cover 7 are respectively provided with semicircular power line grooves 20 (specifically, a plurality of grooves can be provided) which correspond up and down in position;
the semicircular power line groove 20 on the module lower box body 2 and the module upper cover 7 are combined up and down to form a circular power line groove for leading out power lines (comprising a positive connecting line and a negative connecting line) on the battery module main body;
when the circular power line groove leads out the power lines on the battery module main body, sealant is filled in gaps between the circular power line groove and the power lines on the battery module main body.
In the present invention, in a concrete implementation, after the battery module 100 is inserted into the lower battery case 1 from right to left, the sealant is filled in the gap between the peripheral edge of the right side of the battery module 100 (including the integral right side of the lower module case 2 and the module upper cover 7) and the peripheral edge of the right side of the lower battery case 1, so that the sealing performance of the battery system can be further enhanced.
In the utility model, in concrete implementation, the existing 4G module 9 can be further arranged on the right side surface of the module lower box body 2.
In order to more clearly understand the technical solution of the present invention, the following describes the overall assembly process of a two-wheeled electric vehicle battery system to which the present invention is applied, specifically as follows:
firstly, referring to fig. 2, arrange a plurality of electric cores 4 at the top of box 2 under the module according to user's demand, fix electric core 4 through four module strengthening ribs 3 to ensure the dimensional stability after the circulation.
Then, as shown in fig. 3, the battery control module 5 is mounted on the module reinforcing rib 3, the sealant is injected into the "concave" structure (i.e., the butt groove) at the top of the module lower case 2 by the existing sealant injection tool, and the molded battery module 100 is obtained by the "convex" structure (i.e., the butt protrusion) at the bottom of the module upper cover 7, the "concave" structure (i.e., the butt groove) at the top of the module lower case 2, and the sealant, so that the protection level of IP67 inside the battery system of the present invention can be realized. Meanwhile, a power line led out of the main body of the battery module is led out through a hole reserved between the lower module box body 2 and the upper module cover 7 and is sealed through sealant.
Then, as shown in fig. 4, the molded battery module 100 obtained as described above is inserted into the battery lower case 1 of an aluminum profile from the right to the left;
then, as shown in fig. 5, the conventional power terminal 8 is assembled with the battery upper cover 6, and the battery upper cover 6 is mounted on the right side surface of the battery lower case 1, thereby completing the assembly of the battery system.
Through the structural design, the utility model can meet the IP67 grade protection requirement of the battery system through inspection, does not increase the sealing size, and is favorable for improving the size precision of the battery system product and the tolerance of falling and soaking in severe environment.
It should be noted that, in the utility model, by adopting the double-layer sealing structure with the inner layer sealing and the outer layer reinforcing, the sealing performance and the overall strength of the battery system are ensured, and meanwhile, the size and the space occupied by the sealing structure are further reduced.
Compared with the prior art, the two-wheeled electric vehicle battery system with the novel sealing structure provided by the utility model has the advantages that the structural design is scientific, the size and the space occupied by the sealing structure can be further reduced on the basis of ensuring the sealing performance and the overall strength of the battery system, the overall space utilization rate of the battery system is improved, the adaptability of the battery system is enhanced, and the practical significance is great.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A two-wheeled electric vehicle battery system with a novel sealing structure is characterized by comprising a hollow battery lower box body (1);
the right side of the battery lower box body (1) is provided with an opening;
the battery module (100) is inserted into the battery lower box body (1) from right to left;
the battery module (100) comprises a module lower box body (2) and a module upper cover (7);
the opening of the module lower box body (2) is upward; the opening of the module upper cover (7) is downward;
the module lower box body (2) and the module upper cover (7) are the same in shape and size and are distributed in an up-and-down symmetrical mode;
the module lower box body (2) and the module upper cover (7) are buckled together up and down;
the top of the module lower box body (2) is provided with a battery module main body;
the battery module main body comprises a plurality of battery cores (4) which are longitudinally arranged in parallel;
the front side, the rear side, the left side and the right side of the battery module main body are respectively provided with a module reinforcing rib plate (3) which is vertically distributed;
the bottom of the module reinforcing rib plate (3) is fixedly connected to the top of the module lower box body (2);
a module carrier (10) disposed on the top of the battery module main body;
a battery control module (5) is fixedly arranged on the module reinforcing rib plate (3) on the right side of the battery module main body;
the top surface of the module lower box body (2) is bonded with the bottom surface of the module upper cover (7) through sealing glue, and a hollow sealing space is formed between the module lower box body (2) and the module upper cover (7);
the battery module main body, the module carrier (10), the module reinforcing rib plate (3) and the battery control module (5) are positioned in the sealed space;
the right end part of the battery lower box body (1) is fixedly connected with the left end part of one battery upper cover (6) through a plurality of fasteners (11);
a circle of butt joint groove is arranged at the middle position of the top of the side plate on the periphery of the lower box body (2) of the module in a surrounding manner;
a circle of butt joint bulges are arranged at the middle position of the bottom of the side plate at the periphery of the module upper cover (7) in a surrounding manner;
when the module lower box body (2) and the module upper cover (7) are buckled up and down, sealant is poured into the butt joint groove in advance, and the butt joint groove is spliced with the butt joint bulge.
2. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein the nickel sheet (101) on the module carrier (10) is fixed with the pole on the top of the battery cell (4) by laser welding.
3. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein the overall shape of the battery lower case (1) is a rectangular parallelepiped shape;
the edges of the front side and the rear side of the top and the front side and the rear side of the bottom of the lower battery box body (1) are edges subjected to arc chamfering treatment.
4. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein any two adjacent module reinforcing rib plates (3) are connected;
the module reinforcing rib plate (3) on the right side of the battery module main body is fixedly connected with the battery control module (5) through a plurality of screws;
the overall shape of the module lower box body (2) and the module upper cover (7) is a right-angle triangular prism shape.
5. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein the middle of the top surface of the right end of the module lower case (2) and the middle of the bottom surface of the right end of the module upper cover (7) are respectively provided with semicircular power line grooves (20) which are positioned corresponding up and down;
the semicircular power line groove (20) on the module lower box body (2) and the module upper cover (7) are combined up and down to form a circular power line groove for leading out a power line on the battery module main body;
when the power lines on the battery module main body are led out from the circular power line grooves, sealant is filled in gaps between the circular power line grooves and the power lines on the battery module main body.
6. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein the bottom of the module carrier (10) is provided with a limiting groove at a position corresponding to the top of each battery cell (4);
the top of one battery cell (4) is embedded into the limiting groove.
7. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein a plurality of nickel sheet limiting grooves and a plurality of sampling harness limiting grooves are formed in the top of the module carrier (10);
each nickel sheet limiting groove is used for limiting one nickel sheet (101) welded on the top of one battery cell (4);
the nickel sheet (101) is connected with a sampling wire harness (102).
8. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in claim 1, wherein the module carrier (10) is provided with reinforcing ribs (103) circumferentially distributed at the peripheral edge;
when the module lower box body (2) and the module upper cover (7) are buckled up and down, the peripheral outer side surfaces of the reinforcing ribs (103) are contacted with the peripheral inner cavity wall of the module upper cover (7).
9. The two-wheeled electric vehicle battery system with the novel sealing structure as claimed in any one of claims 1 to 8, wherein after the battery module (100) is inserted into the lower battery case (1) from right to left, a sealant is filled in a gap between the peripheral edge of the right side face of the battery module (100) and the peripheral edge of the right side face of the lower battery case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122892336.1U CN217009443U (en) | 2021-11-24 | 2021-11-24 | Two-wheeled electric vehicle battery system with novel seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122892336.1U CN217009443U (en) | 2021-11-24 | 2021-11-24 | Two-wheeled electric vehicle battery system with novel seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217009443U true CN217009443U (en) | 2022-07-19 |
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| CN202122892336.1U Active CN217009443U (en) | 2021-11-24 | 2021-11-24 | Two-wheeled electric vehicle battery system with novel seal structure |
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