CN215933730U - Battery box and battery pack - Google Patents
Battery box and battery pack Download PDFInfo
- Publication number
- CN215933730U CN215933730U CN202121773724.1U CN202121773724U CN215933730U CN 215933730 U CN215933730 U CN 215933730U CN 202121773724 U CN202121773724 U CN 202121773724U CN 215933730 U CN215933730 U CN 215933730U
- Authority
- CN
- China
- Prior art keywords
- middle frame
- battery
- plate
- baffle
- box body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model relates to the technical field of battery storage and discloses a battery box body and a battery assembly. The battery box body comprises a front baffle, a middle frame and a rear baffle; the front end and the rear end of the middle frame are communicated, and the front baffle and the rear baffle are respectively connected to the front end and the rear end of the middle frame and can enclose an accommodating cavity for installing a battery module; the center includes the roof, connects in two curb plates of the relative both sides of roof and the bottom plate that sets up with the roof relatively, and bottom plate detachably connects in two curb plates. The battery box body and the battery component provided by the utility model have simple structures and are convenient for the installation or the disassembly of the battery module.
Description
Technical Field
The utility model relates to the field of battery storage devices, in particular to a battery box body and a battery assembly.
Background
A battery refers to a device that converts chemical energy into electrical energy in a portion of the space of a cup, tank, or other container or composite container that holds an electrolyte solution and metal electrodes to produce an electrical current.
When the existing battery is designed, the battery module needs to be placed in a battery box body in order to ensure the safety of the battery module. And current battery box structural design is complicated, and inner space is narrow, and battery module installation is dismantled comparatively troublesome.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery box body and a battery assembly.
In order to solve the above problems, in a first aspect, the utility model discloses a battery box, which comprises a front baffle, a middle frame and a rear baffle, wherein the front end and the rear end of the middle frame are communicated, and the front baffle and the rear baffle are respectively connected to the front end and the rear end of the middle frame and can be enclosed into an accommodating cavity for installing a battery module;
the middle frame comprises a top plate, two side plates connected to two opposite sides of the top plate and a bottom plate arranged opposite to the top plate, and the bottom plate is detachably connected to the two side plates.
In one embodiment, the end of the side plate far away from the top plate is formed with a folded edge, the folded edge is parallel to the top plate and extends towards the inner side of the side plate, and the bottom plate is detachably connected with the folded edge.
In one embodiment, the bottom plate and the folded edge are respectively provided with a mounting hole for mounting a screw, and the bottom plate is connected to the side plate through a screw.
In one embodiment, the inner wall of the middle frame is further provided with a limiting structure, and the limiting structure is used for abutting against and fixing the battery module.
In an embodiment, the limiting structure includes four sets of supporting columns disposed at four inner corners of the middle frame, and the four sets of supporting columns extend along a length direction of the middle frame.
In an embodiment, the lengths of the four groups of support columns are equal to each other and smaller than the length of the middle frame, the battery box further includes a middle baffle plate disposed in the middle frame, the middle baffle plate is disposed in parallel with the front baffle plate and disposed at one end of each of the four groups of support columns away from the front baffle plate, the middle frame and the front baffle plate enclose the accommodating cavity, and the middle baffle plate, the middle frame and the rear baffle plate enclose the accommodating cavity for accommodating parts.
In one embodiment, a positioning plate is formed at one end of the supporting column, which is far away from the front baffle plate, the positioning plate is parallel to the front baffle plate, a positioning hole for installing a screw is formed in the positioning plate, and the middle baffle plate is connected to the supporting column through a screw.
In an embodiment, the inner wall of the middle frame is provided with a reinforcing rib extending along the length direction of the middle frame, the reinforcing rib is provided with a thread groove for fixing a screw, the front baffle and the rear baffle are respectively provided with a threaded hole corresponding to the thread groove, and the front baffle and the rear baffle are connected to the middle frame through screws penetrating through the threaded holes and the thread groove.
In one embodiment, the battery case further includes a handle.
The battery box body provided by the utility model utilizes the front baffle, the rear baffle and the middle frame to enclose the accommodating cavity, and can be used for accommodating the battery module. Wherein, the center includes the roof, connects in two curb plates of the relative both sides of roof and the bottom plate that sets up relatively with the roof, and bottom plate detachably connects in two curb plates, like this, when installation or dismantlement battery module, can take off in order to open the holding chamber with the bottom plate from the curb plate earlier, then put into the holding chamber with the battery module or take out from the holding chamber can. Adopt above-mentioned structural design's battery box, simple structure can open or seal the holding chamber through the dismouting bottom plate, is convenient for install or dismantle battery module, convenient to use.
In a second aspect, the utility model further discloses a battery assembly, which comprises a battery module and the battery box body as in the first aspect, wherein the battery module is arranged in the accommodating cavity of the battery box body.
According to the battery assembly provided by the utility model, the battery box body is arranged, and the battery module is arranged in the battery box body, so that the risk of damage of the battery module due to external factors can be effectively reduced, and the use safety of the battery assembly is improved. Simultaneously, through the structure of improving the battery box, can be easy to assemble or dismantle battery module to can effectively improve battery pack's use convenience. The battery pack can be used as a mobile power supply and is convenient to disassemble and assemble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery case provided in an embodiment of the present invention;
FIG. 2 is a perspective view of a middle frame of the battery case shown in FIG. 1;
FIG. 3 is a perspective exploded view of the middle frame of FIG. 2;
fig. 4 is an exploded view of a battery pack according to an embodiment of the present invention.
Description of the main element symbols:
100. a battery assembly; 10. a battery case; 20. a battery module;
11. a front baffle; 12. a middle frame; 121. a top plate; 122. a side plate; 123. a base plate; 124. folding edges; 13. a tailgate; 14. an accommodating cavity; 15. a limiting structure; 151. a support pillar; 16. an intermediate baffle; 17. a handle; 18. a charging socket.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In a first aspect, the utility model provides a battery case for accommodating a battery module. As shown in fig. 1, 2 and 3, the battery case 10 includes a front bezel 11, a middle frame 12 and a rear bezel 13. As shown in fig. 1, 3 and 4, the front end and the rear end of the middle frame 12 are through, and the front baffle 11 and the rear baffle 13 are respectively connected to the front end and the rear end of the middle frame 12 and can enclose an accommodating cavity 14 for installing a battery module 20 (the front end is an end a shown in fig. 1, and the rear end is an end b shown in fig. 1); the middle frame 12 includes a top plate 121, two side plates 122 connected to opposite sides of the top plate 121, and a bottom plate 123 disposed opposite to the top plate 121, and the bottom plate 123 is detachably connected to the two side plates 122.
The battery box 10 provided by the utility model utilizes the front baffle 11, the rear baffle 13 and the middle frame 12 to enclose the accommodating cavity 14 and can be used for accommodating the battery module 20. The middle frame 12 includes a top plate 121, two side plates 122 connected to two opposite sides of the top plate 121, and a bottom plate 123 disposed opposite to the top plate 121, and the bottom plate 123 is detachably connected to the two side plates 122, so that when the battery module 20 is mounted or dismounted, the bottom plate 123 can be taken down from the side plates 122 to open the accommodating cavity 14, and then the battery module 20 is put into the accommodating cavity 14 or taken out from the accommodating cavity 14. The battery box body 10 adopting the structural design has a simple structure, the accommodating cavity 14 can be opened or closed through the dismounting bottom plate 123, the battery module 20 is convenient to mount or dismount, and the use is convenient.
When the battery module 20 is installed, the bottom plate 123 can be taken down from the side plate 122, then the battery module 20 is placed on the bottom plate 123, and the bottom plate 123 and the battery module 20 are installed on the side plate 122 together; alternatively, the bottom plate 123 may be removed from the side plates 122, the battery module 20 may be placed in the middle frame 12, and then the bottom plate 123 may be mounted on the side plates 122.
In the battery case 10 of the present invention, the bottom plate 123 of the middle frame 12 and the side plate 122 are not connected in the only manner.
For example, in one embodiment, as shown in fig. 1, 3 and 4, the end of the side plate 122 remote from the top plate 121 is formed with a flap 124, the flap 124 is parallel to the top plate 121 and extends toward the inner side of the side plate 122, and the bottom plate 123 is detachably connected to the flap 124. The hem 124 has a large space, and the fixed bottom plate 123 is connected by the hem 124, so that the installation is convenient and the reliability is high.
It is understood that, in order to ensure that the battery module 20 can be installed in the accommodating cavity 14, the distance between the two folded edges 124 should be larger than the dimension of the battery module 20 to be assembled in the distribution direction (for example, the direction X in fig. 3) of the side plates 122.
Further, in an embodiment, the bottom plate 123 and the folded edge 124 are respectively provided with mounting holes (not shown) for mounting screws, and the bottom plate 123 is connected to the folded edge 124 through screws. The threaded connection has the advantages of simple structure, reliable connection and easy disassembly and assembly. The bottom plate 123 and the side plate 122 are connected by screws, so that the reliability is high and the disassembly and assembly are convenient.
Alternatively, in an embodiment, the side plate 122 has a certain thickness, positioning holes can be directly formed on one end of the side plate 122 and the bottom plate 123, and the bottom plate 123 is mounted on the side plate 122 by screws.
Alternatively, in an embodiment, a slot with a thickness similar to that of the bottom plate 123 may be formed on the inner wall of the side plate 122, and the bottom plate 123 may be directly inserted into the slot on the side plate 122.
The battery box 10 provided by the utility model ensures that the battery module 20 can be smoothly arranged in the accommodating cavity 14, and the size of the accommodating cavity 14 is larger than that of the battery module 20. On the basis, in order to ensure that the battery module 20 can be stably held after being installed in the battery box 10, in an embodiment, as shown in fig. 1, 3 and 4, the inner wall of the middle frame 12 is further provided with a limiting structure 15, and the limiting structure 15 is used for abutting and fixing the battery module 20. Set up limit structure 15 on the 12 inner walls of center, can improve the fixed effect of holding chamber 14 to battery module 20's joint, avoid battery module 20 to pack into and shake after the back in holding chamber 14 to can reduce the risk that battery module 20 collided with and damaged, and then can effectively promote battery box 10's reliability and security.
The type and structure of the limiting structure 15 are not unique.
For example, in an embodiment, the position limiting structure 15 includes four sets of supporting pillars 151 disposed at four inner corners of the middle frame 12, the four sets of supporting pillars 151 are disposed to extend along a length direction (e.g., a direction Y shown in fig. 3) of the middle frame 12, and after the battery module 20 is installed in the battery box 10, the battery module can abut against the four sets of supporting pillars 151 and is fixed in the accommodating cavity 14 under the abutment of the four sets of supporting pillars 151. By adopting the structural design, the structure is simple, the damage is not easy, and the reliability is high.
Note that, in order to ensure the abutting effect of the support column 151, the width (dimension in the direction indicated by X) of the support column 151 is not smaller than the width of the flange 124.
It is understood that the supporting columns 151 may be directly disposed on the top plate 121 or the bottom plate 123, or may be partially connected to the side plates 122 and partially connected to the top plate 121 or the bottom plate 123, and may be designed according to practical situations, and is not limited herein.
Further, in some embodiments, the support posts 151 may be hollow support posts 151. The supporting column 151 is designed to be of a hollow structure, so that the dead weight of the battery box body 10 can be reduced, the use convenience of the battery box body 10 is improved, meanwhile, the material waste can be reduced, and the manufacturing cost is saved. Alternatively, in some embodiments, the supporting columns 151 may be solid supporting columns 151 to improve the strength and reliability of the battery case 10.
Alternatively, in some embodiments, the limiting structure 15 may further include a plurality of sets of protrusions disposed on the inner wall of the side plate 122, and the battery module 20 may abut against the surfaces of the protrusions after being installed in the accommodating cavity 14.
The battery case 10 is used to house the battery module 20, and also houses some components used in cooperation with the battery module 20. In an embodiment, as shown in fig. 1, 3 and 4, the limiting structure 15 includes four sets of supporting pillars 151, the lengths of the four sets of supporting pillars 151 are equal and smaller than the length of the middle frame 12, the battery box 10 further includes a middle baffle 16 disposed in the middle frame 12, the middle baffle 16 is disposed in parallel with the front baffle 11 and is disposed at one end of the four sets of supporting pillars 151 away from the front baffle 11, the middle baffle 16, the middle frame 12 and the front baffle 11 enclose an accommodating cavity 14 for accommodating the battery module 20, and the middle baffle 16, the middle frame 12 and the rear baffle 13 enclose an accommodating cavity for accommodating components. By adopting the structure design, the practicability of the battery box body 10 can be effectively improved, and the battery box body 10 is high in integrity and not easy to damage.
It can be understood that the supporting posts 151 are used for abutting and fixing the battery module 20, and only need to be disposed in the accommodating cavity 14.
In the battery case 10 of the present invention, the intermediate baffle 16 is not fixed only.
For example, in one embodiment, a positioning plate (not shown) is formed at an end of the supporting column 151 away from the front bezel 11, the positioning plate is parallel to the front bezel 11 and is provided with positioning holes for mounting screws, and the intermediate bezel 16 is connected to the supporting column 151 by screws. The threaded connection has the advantages of simple structure, reliable connection and easy disassembly and assembly. Utilize baffle 16 and support column 151 in the middle of the screw connection, the reliability is high and easy dismounting.
The intermediate baffle 16 is used to separate the accommodating chamber 14 and an accommodating chamber (not shown), and one side of the intermediate baffle located in the accommodating chamber abuts against the battery module 20. The size of the middle partition plate can be smaller than the size of the cross section of the middle frame 12, that is, a gap can exist between the edge of the middle partition plate and the inner wall of the middle frame 12, and the middle partition plate can be designed according to actual conditions, and is not limited herein.
Alternatively, in some embodiments, a clamping structure such as a protrusion or a groove may be further disposed on the inner wall of the side plate 122, and the middle baffle 16 may be clamped and connected to the side plate 122 of the middle frame 12.
To further improve the convenience of the battery box 10, in one embodiment, the front baffle 11 and the rear baffle 13 are detachably connected to the middle frame 12.
The connection mode between the front baffle 11 and the rear baffle 13 and the middle frame 12 is not unique.
In an embodiment, the inner wall of the middle frame 12 is provided with a rib (not shown in the figure) extending along the length direction of the middle frame 12, the rib is provided with a thread groove (not shown in the figure) for fixing a screw, the front baffle 11 and the rear baffle 13 are respectively provided with a thread hole corresponding to the thread groove, and the front baffle 11 and the rear baffle 13 are connected to the middle frame 12 through a screw penetrating the thread hole and the thread groove. The threaded connection has the advantages of simple structure, reliable connection and easy disassembly and assembly. The front baffle plate 11 and the middle frame 12 and the rear baffle plate 13 and the middle frame 12 are connected through screws, so that the reliability is high and the disassembly and the assembly are convenient. In addition, the reinforcing ribs can also reinforce the middle frame 12, and improve the strength of the middle frame 12, thereby further improving the reliability of the battery case 10.
It should be noted that the supporting columns 151 are disposed at the inner four corners of the middle frame 12, and the supporting columns 151 should avoid the reinforcing ribs, for example, the supporting columns 151 at the positions of the reinforcing ribs may be designed as hollow structures.
Or, in some embodiments, matching clamping structures, such as a clamping snap ring, may be further disposed on the front baffle 11, the rear baffle 13, and the middle frame 12, which may be specifically designed according to actual situations and are not limited herein.
To further improve the ease of use of the battery case 10, in one embodiment, as shown in fig. 1, 3 and 4, the battery case 10 further includes a handle 17.
Alternatively, the handle 17 may be provided on the top plate 121.
In order to further improve the convenience of the battery box 10, in an embodiment, as shown in fig. 1, fig. 3 and fig. 4, the battery box 10 is further provided with a charging jack 18, a switch button, an electric quantity viewing port, and other structures, which can be specifically designed according to actual situations, and are not limited herein.
In a second aspect, the utility model further provides a battery assembly, which includes a battery module and the battery box body as in the first aspect, wherein the battery module is disposed in the accommodating cavity of the battery box body.
According to the battery pack 100 provided by the utility model, the battery box body 10 is arranged, and the battery module 20 is arranged in the battery box body 10, so that the risk of damage of the battery module 20 caused by external factors can be effectively reduced, and the use safety of the battery pack 100 is improved. Meanwhile, by improving the structure of the battery case 10, the battery module 20 can be easily mounted or dismounted, and thus the convenience of use of the battery assembly 100 can be effectively improved. The battery assembly 100 can be used as a mobile power supply and is convenient to disassemble and assemble.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A battery box body is characterized by comprising a front baffle, a middle frame and a rear baffle, wherein the front end and the rear end of the middle frame are communicated, and the front baffle and the rear baffle are respectively connected to the front end and the rear end of the middle frame and can be enclosed into an accommodating cavity for installing a battery module;
the middle frame comprises a top plate, two side plates connected to two opposite sides of the top plate and a bottom plate arranged opposite to the top plate, and the bottom plate is detachably connected to the two side plates.
2. The battery box body as claimed in claim 1, wherein the end of the side plate remote from the top plate is formed with a folded edge which is parallel to the top plate and extends toward the inner side of the side plate, and the bottom plate is detachably attached to the folded edge.
3. The battery box body as claimed in claim 2, wherein the bottom plate and the folded edge are respectively provided with mounting holes for mounting screws, and the bottom plate is connected to the side plate through screws.
4. The battery box body as claimed in claim 1, wherein the inner wall of the middle frame is further provided with a limiting structure, and the limiting structure is used for abutting against and fixing the battery module.
5. The battery box body as claimed in claim 4, wherein the limiting structure comprises four sets of supporting columns arranged at four inner corners of the middle frame, and the four sets of supporting columns are arranged to extend along the length direction of the middle frame.
6. The battery box body according to claim 5, wherein the four groups of support columns have the same length and are smaller than the middle frame, the battery box body further comprises a middle baffle plate arranged in the middle frame, the middle baffle plate is arranged in parallel with the front baffle plate and is arranged at one end of each of the four groups of support columns, which is far away from the front baffle plate, the middle frame and the front baffle plate enclose the accommodating cavity, and the middle baffle plate, the middle frame and the rear baffle plate enclose an accommodating cavity for accommodating parts.
7. The battery box body as claimed in claim 6, wherein a positioning plate is formed at one end of the supporting column away from the front baffle, the positioning plate is parallel to the front baffle and provided with a positioning hole for mounting a screw, and the middle baffle is connected to the supporting column through a screw.
8. The battery box body according to any one of claims 1 to 7, wherein the inner wall of the middle frame is provided with a reinforcing rib extending along the length direction of the middle frame, the reinforcing rib is provided with a thread groove for fixing a screw, the front baffle and the rear baffle are respectively provided with a threaded hole corresponding to the thread groove, and the front baffle and the rear baffle are connected to the middle frame through screws penetrating through the threaded holes and the thread groove.
9. The battery box of any of claims 1-7, further comprising a handle.
10. A battery assembly, comprising a battery module and the battery case according to any one of claims 1 to 9, wherein the battery module is disposed in the accommodating cavity of the battery case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773724.1U CN215933730U (en) | 2021-07-30 | 2021-07-30 | Battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773724.1U CN215933730U (en) | 2021-07-30 | 2021-07-30 | Battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215933730U true CN215933730U (en) | 2022-03-01 |
Family
ID=80399121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121773724.1U Active CN215933730U (en) | 2021-07-30 | 2021-07-30 | Battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215933730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064831A (en) * | 2022-04-18 | 2022-09-16 | 安徽省金兰金盈铝业有限公司 | Aluminum profile box frame structure for lightweight automobile battery pack |
-
2021
- 2021-07-30 CN CN202121773724.1U patent/CN215933730U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115064831A (en) * | 2022-04-18 | 2022-09-16 | 安徽省金兰金盈铝业有限公司 | Aluminum profile box frame structure for lightweight automobile battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5619820B2 (en) | Battery pack case | |
| EP3128576A1 (en) | Storage battery unit and storage battery device provided with same | |
| CN113937400B (en) | Frame body, support, battery module and energy storage power supply | |
| CN215933730U (en) | Battery box and battery pack | |
| CN212587654U (en) | Battery cabinet and energy storage system | |
| JP7041812B2 (en) | Battery pack fixing device | |
| CN215527850U (en) | Battery module casing, battery module and battery package | |
| CN112886127A (en) | Energy storage system and box thereof | |
| CN220210759U (en) | Energy storage power supply shell and assembled energy storage power supply | |
| CN216389622U (en) | Battery pack and outdoor power supply | |
| CN219876475U (en) | Novel remote controller | |
| CN221176450U (en) | Shell assembly, energy storage device and energy storage system | |
| CN116404315B (en) | Battery module, energy storage device and electric equipment | |
| CN217427000U (en) | Energy storage power supply | |
| CN214848832U (en) | Rechargeable battery shell and rechargeable battery assembly | |
| CN220830071U (en) | Battery pack | |
| CN214411316U (en) | Battery cell support and mobile power supply | |
| CN220065911U (en) | Battery pack shell, battery pack and mobile air conditioner | |
| CN217903321U (en) | Battery pack | |
| CN108695470B (en) | Battery structure and dust collector | |
| CN212063882U (en) | Solar energy storage device | |
| CN219918868U (en) | Photovoltaic junction box device | |
| CN219801119U (en) | Battery box and battery pack | |
| CN220896964U (en) | Portable multifunctional alarm for civil air defense | |
| CN218677403U (en) | New energy automobile's battery compartment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |