CN219246789U - Battery and power utilization device - Google Patents
Battery and power utilization device Download PDFInfo
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- CN219246789U CN219246789U CN202320694433.6U CN202320694433U CN219246789U CN 219246789 U CN219246789 U CN 219246789U CN 202320694433 U CN202320694433 U CN 202320694433U CN 219246789 U CN219246789 U CN 219246789U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The embodiment of the application provides a battery and an electric device, and relates to the technical field of batteries. The battery comprises at least one first heat exchange plate, wherein the first heat exchange plate is provided with a heat exchange surface; at least one electric connector mounted on the heat exchange surface; and at least two electric cores, wherein each electric core is provided with a pole, one side of each electric core with the pole faces to the heat exchange surface, and the electric cores are connected in series and/or in parallel through electric connectors, so that the heat of the side of the pole can be reduced, and the temperature difference of the battery is reduced.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery and an electric device.
Background
The performance of the battery cell is very sensitive to temperature, and the service life of the battery cell can be quickly attenuated even if the temperature is too high, so that serious safety problems can be caused, and life and property losses are caused. In order to exert the best performance of the battery cell and prolong the service life of the battery cell as much as possible, the heat generated by the battery cell must be effectively discharged in time. Currently, a case, a cooling assembly, and a plurality of battery cells are combined to form a battery. When the battery cell generates heat, heat is transferred to the cooling plate of the cooling assembly through the battery cell shell, and the cooling plate is generally arranged on one side of the bottom of the shell.
The prior art has the technical defects that one of the components with the most serious heating of the battery cells is a pole, and the heat of the pole needs to be transferred to a shell and then to a cooling plate, so that the heat accumulation condition in the pole area is easy to occur, and the temperature of the battery cells is too high.
In view of this, it is desirable to design a battery to better enhance the heat dissipation effect of the battery.
Disclosure of Invention
The object of the present application includes, for example, providing a battery capable of reducing the heat of the pole side and reducing the battery temperature difference.
The purpose of this application still includes, provides an electric installation, and it can reduce the heat of utmost point post side, reduces battery temperature difference.
Embodiments of the present application may be implemented as follows:
embodiments of the present application provide a battery, comprising:
at least one first heat exchange plate having a heat exchange surface;
at least one electrical connector mounted to the heat exchange surface; and at least two electric cores, wherein the electric cores are provided with polar posts, one sides of the electric cores with the polar posts face to the heat exchange surface, and the electric cores are connected in series and/or in parallel through the electric connecting pieces.
Optionally, the heat exchange surface of the first heat exchange plate is formed with a groove, and each pole is correspondingly disposed in the groove.
Optionally, the heat exchange device further comprises a first heat conducting member at least arranged in the groove, and the polar post and the first heat exchange plate can exchange heat through the first heat conducting member.
Optionally, the first heat exchange plate includes:
the first plate body is provided with a concave-convex structure, and one surface of the concave-convex structure is the heat exchange surface; and the second plate body is arranged on one surface of the first plate body, which is away from the heat exchange surface, and forms a cavity for the cooling medium to pass through with the first plate body.
Optionally, the heat exchanger further comprises a frame, wherein the frame comprises two first side beams which are oppositely arranged along the first direction, a second heat exchange plate is arranged between the two first side beams, and a manifold communicated with the second heat exchange plate is arranged in the first side beams.
Optionally, the air conditioner further comprises at least one reinforcing rib group, each reinforcing rib group comprises two reinforcing ribs which are arranged between the first plate body and the second plate body at opposite intervals, the first plate body, the second plate body and the two reinforcing ribs form an air exhaust channel in a surrounding mode, one end of the air exhaust channel is closed, the other end of the air exhaust channel is open, and through holes or thinning areas corresponding to the air exhaust channel are formed in the first plate body.
Optionally, the frame further includes two second boundary beams oppositely arranged along a second direction, the second direction is perpendicular to the first direction, and an exhaust cavity communicated with the opening is formed in the second boundary beam.
Optionally, the frame further includes a blocking piece, where the blocking piece is disposed between the first side beam and the second side beam, and blocks the first side beam and the second side beam respectively; the first side beam, the second side beam and the blocking piece are surrounded to form a containing cavity for containing the battery cell.
Optionally, a mounting hole communicated with the exhaust cavity is formed in one side, away from the accommodating cavity, of the second side beam, and a pressure release valve is mounted in the mounting hole.
The embodiment of the application also provides an electric device comprising the battery.
The beneficial effects of the battery and the power utilization device of the embodiment of the application include, for example: when the battery's utmost point post side produces the in-process of heat, because the heat of the utmost point post side of battery just can in time carry out the heat exchange through this heat exchange surface owing to the heat exchange surface of one side orientation first heat exchange plate of the utmost point post of electric core to the heat of utmost point post side has been reduced, battery temperature difference has been reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a battery according to an embodiment of the present application;
fig. 2 is an exploded view of a battery in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a battery in an embodiment of the present application;
fig. 4 is a schematic structural view of a first heat exchange plate according to an embodiment of the present application;
fig. 5 is a cross-sectional view of a first heat exchanger plate in an embodiment of the present application;
fig. 6 is a schematic structural view of a first side beam according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a second side beam according to an embodiment of the present application;
fig. 8 is a schematic diagram for showing a connection manner of the second heat exchange plate in the embodiment of the present application.
Icon: 10-battery;
100-cell; 110-pole; 120-electrical connectors;
200-a first heat exchange plate; 210-a first water inlet joint; 220-a first water outlet connector; 230-grooves; 240-a first plate; 250-a second plate; 260-reinforcing ribs; 261-plug; 270-an exhaust passage; 280-flow channel;
300-a first side beam; 310-manifold; 320-a first extension beam; 321-through holes; 330-positioning groove;
400-second side beams; 410-an exhaust chamber; 420-a pressure release valve; 430-a second extension beam; 431-a first vent; 432-a second vent; 440-exhaust port;
500-plugging piece;
600-a second heat exchange plate; 610-a second water inlet connector; 620-a second water outlet connector;
700-third heat exchange plate; 710-a third water inlet joint; 720-third water outlet joint.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, if the terms "upper," "lower," "inner," "outer," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that, without conflict, features in embodiments of the present application may be combined with each other.
The inventor of the application finds that the existing mode of inverting the battery core and cooling the large surface of the battery cannot perform good cooling on the series aluminum bar with larger heat, and the heat is more concentrated on the pole side, so that the temperature difference of the battery is larger. Embodiments of the present application provide a battery at least for solving this technical problem.
Referring to fig. 1-3, a battery 10 according to an embodiment of the present application includes at least one first heat exchange plate 200, at least one electrical connector 120, and at least two electrical cells 100; the first heat exchange plate 200 has a heat exchange surface; the electrical connector 120 is mounted on the heat exchange surface; the battery cell 100 has a pole 110, one side of the battery cell 100 having the pole 110 faces the heat exchange surface, and the battery cells 100 are connected in series and/or in parallel by an electrical connection 120.
It should be noted that the electrical connectors 120 are aluminum bars, and the cells 100 are connected in series and/or parallel through the aluminum bars.
During the use of the battery 10, the heat on the side of the electrode post 110 of the battery 10 is generated, and as the side of the electrode post 110 of the battery cell 100 faces the heat exchange surface of the first heat exchange plate 200, the heat on the side of the electrode post 110 of the battery 10 can be timely exchanged through the first heat exchange plate 200, so that the heat on the side of the electrode post 110 is reduced, and the temperature difference of the battery 10 is reduced.
Referring to fig. 4 and 5, in an alternative embodiment, the heat exchange surface of the first heat exchange plate 200 is formed with grooves 230, and each of the poles 110 is disposed in the groove 230.
It should be noted that the first heat exchange plate 200 has a first direction and a second direction perpendicular to each other, and a plurality of grooves 230 are sequentially formed on the heat exchange surface of the first heat exchange plate 200 along the first direction, and the opening direction of the grooves 230 is the second direction; the battery cell 100 has a positive electrode post 110 and a negative electrode post 110, and the positive electrode post 110 and the negative electrode post 110 of a single battery cell 100 respectively extend into two adjacent grooves 230; correspondingly, the electrical connector 120 is also located within the recess 230.
In addition, the depth of the groove 230 is greater than the height of the pole 110, and the width of the groove 230 is greater than the width of the pole 110, so that collision between the pole 110 and the inner wall of the groove 230 can be avoided.
In an alternative embodiment, the battery 10 further includes a first heat conductive member disposed at least in the groove 230, and the terminal post 110 and the first heat exchange plate 200 can exchange heat through the first heat conductive member.
It should be noted that, the first heat conducting member may be a heat conducting glue or a heat conducting pad, and the heat conducting glue or the heat conducting pad is covered on the surface of the first heat exchange plate 200 facing the electric core 100, and the arrangement of the first heat conducting member can improve the heat conducting performance and heat exchange efficiency between the first heat exchange plate 200 and the electric core 100.
In an alternative embodiment, the first heat exchange plate 200 includes a first plate 240 and a second plate 250, where the first plate 240 is formed with a concave-convex structure, and one surface of the concave-convex structure is a heat exchange surface; the second plate 250 is mounted on a side of the first plate 240 facing away from the heat exchange surface, and forms a cavity through which the cooling medium passes with the first plate 240.
It should be noted that, since the plurality of grooves 230 are sequentially formed along the first direction on the heat exchange surface of the first heat exchange plate 200, a concave-convex structure is formed on the first plate body 240, and one surface of the concave-convex structure is the heat exchange surface; the second plate 250 is flat plate-shaped, and the second plate 250 and the first plate 240 form a cavity through which a cooling medium passes.
In an alternative embodiment, the first heat exchange plate 200 further includes at least one stiffener group, each stiffener group includes two stiffener strips 260 disposed between the first plate 240 and the second plate 250 at opposite intervals, and a plug 261 for plugging ends of the two stiffener strips 260, the first plate 240, the second plate 250 and the two stiffener strips 260 are combined to form an exhaust passage 270, and one end of the exhaust passage 270 is closed and the other end is open.
It should be noted that, the cavities formed by the second plate body 250 and the first plate body 240 are sequentially provided with a plurality of reinforcing rib groups along the second direction, the length direction of the reinforcing ribs 260 is the second direction, one end of the exhaust channel 270 is flush with one end of the first heat exchange plate 200 along the second direction, and the plug 261 is plugged at the other end of the exhaust channel 270; in the same end of the adjacent two exhaust passages 270, one of the exhaust passages 270 is flush with the first heat exchanger plate 200 and the other exhaust passage 270 is not flush with the first heat exchanger plate 200, whereby a flow passage 280 for the cooling medium to pass through is formed inside the cavity.
In an alternative embodiment, the vent channel 270 is provided with a through hole or a thinned area corresponding to the plate surface of the first plate 240.
It should be noted that, the surface of the battery core 100 facing the first plate 240 is provided with an explosion-proof valve, and a through hole or a thinning area is formed on the plate surface of the first plate 240 corresponding to the explosion-proof valve, so that when the explosion-proof valve ejects high-temperature gas, the high-temperature gas can enter the exhaust channel 270 through the through hole or the thinning area.
Referring to fig. 6 and 7, in an alternative embodiment, the battery 10 further includes a frame, where the frame includes two first side beams 300 disposed opposite to each other along the first direction and two second side beams 400 disposed opposite to each other along the second direction, the first side beams 300 and the second side beams 400 are connected end to form a receiving cavity, a blocking member 500 is disposed at a connection portion of the first side beams 300 and the second side beams 400 to block the first side beams 300 and the second side beams 400, and the receiving cavity for receiving the battery cell 100 is formed by surrounding the first side beams 300, the second side beams 400 and the blocking member 500.
It should be noted that, the first side beam 300 and the second side beam 400 are both connected to the first heat exchange plate 200, the battery cell 100 is disposed in the accommodating cavity, and the battery cell 100 is supported by the first heat exchange plate 200; the closure 500 may be a block.
In addition, the battery 10 further includes a second heat exchange plate 600 and a third heat exchange plate 700, the second heat exchange plate 600 is disposed on a large surface of the battery cell 100, the second heat exchange plate 600 is disposed between the two first side beams 300, the third heat exchange plate 700 is disposed on a side of the battery cell 100 facing away from the first heat exchange plate 200, and the second heat exchange plate 600 and the third heat exchange plate 700 can also be filled with a cooling medium.
When the cooling liquid is introduced into the first heat exchange plate 200, the second heat exchange plate 600 and the third heat exchange plate 700, the large surface and the upper and lower end surfaces of the battery cell 100 are simultaneously water-cooled, thereby increasing the heat exchange area and improving the thermal management efficiency.
A second heat conduction member and a third heat conduction member are respectively arranged between the second heat exchange plate 600 and the third heat exchange plate 700 and the battery cell 100, and the materials of the second heat conduction member and the third heat conduction member are the same as those of the first heat conduction member; the second and third heat conductive members improve heat exchange efficiency between the second and third heat exchange plates 600 and 700 and the battery cells 100, respectively.
In an alternative embodiment, a manifold 310 is provided in the first side sill 300, and the manifold 310 is connected to the first heat exchange plate 200 through a through hole 321.
It should be noted that, one of the first side beams 300 is provided with a total water inlet connector communicated with the self-collecting cavity 310, and the other first side beam 300 is provided with a total water outlet connector communicated with the self-collecting cavity 310; the first heat exchange plate 200 is provided with a first water inlet joint 210 and a first water outlet joint 220 relatively, the second heat exchange plate 600 is provided with a second water inlet joint 610 and a second water outlet joint 620 relatively, and the third heat exchange plate 700 is provided with a third water inlet joint 710 and a third water outlet joint 720 relatively; the first, second and third water inlet fittings 210, 610 and 710 are all in communication with the manifold 310 on the side of the total water inlet fitting, and the first, second and third water outlet fittings 220, 620 and 720 are all in communication with the manifold 310 on the side of the total water outlet fitting.
In the process of cooling the battery cell 100, the cooling liquid is introduced into one of the current collecting cavities 310 through the total water inlet connector, then flows into the first heat exchange plate 200, the second heat exchange plate 600 and the third heat exchange plate 700 through the first water inlet connector 210, the second water inlet connector 610 and the third water inlet connector 710, flows into the other current collecting cavity 310 through the first water outlet connector 220, the second water outlet connector 620 and the third water outlet connector 720, and finally flows out through the total water outlet connector.
In an alternative embodiment, the second side rail 400 is provided at an inside thereof with a vent chamber 410, and the vent chamber 410 communicates with an opening of the vent passage 270.
It should be noted that, a mounting hole communicated with the exhaust cavity 410 is provided on one side of the second side beam 400 away from the accommodating cavity, and a pressure release valve 420 is provided in the mounting hole; the second side beam 400 is provided with a plurality of exhaust holes communicated with the exhaust cavity 410, wherein the opening of one part of the exhaust channel 270 is in one-to-one butt joint with the plurality of exhaust holes on one of the second side beams 400, and the opening of the other part of the exhaust channel 270 is in one-to-one butt joint with the plurality of exhaust holes on the other second side beam 400.
When the gas in the explosion-proof valve of the battery cell 100 is discharged into the exhaust channel 270, the gas enters the exhaust cavity 410 through the exhaust hole, and finally is discharged out of the second side beam 400 through the pressure release valve 420, so that the high-temperature gas is discharged in time, and the safety of the battery 10 package is ensured.
In addition, the two first side beams 300, the two second side beams 400, and the first heat exchange plate 200 constitute a box assembly, which is a cavity structure formed by extruding the profile. The first heat exchange plate 200 is in sealing connection with the manifold 310 through the first water inlet joint 210 and the first water outlet joint 220, the second heat exchange plate 600 is in sealing connection with the tank assembly through the second water inlet joint 610 and the second water outlet joint 620, and the third heat exchange plate 700 is in sealing connection with the tank assembly through the third water inlet joint 710 and the third water outlet joint 720, so that the overall space utilization rate of the battery 10 is improved.
The blocking piece 500 is disposed between the first side beams 300 and the second side beams 400, and the blocking piece 500 forms the two first side beams 300 into a closed cavity. Meanwhile, the blocking piece 500 has a structural reinforcing effect on the connection between the first side beam 300 and the second side beam 400, and the blocking piece 500 and the first side beam 300 or the second side beam 400 can be connected through bonding and welding. The first heat exchange plate 200 is connected to the first side rail 300 or the second side rail 400 by bonding or welding.
In an alternative embodiment, the first side beams 300 are provided with first extension beams 320, the first extension beams 320 are provided with through holes 321 communicated with the manifold 310, the first water inlet connector 210 is inserted into the through holes 321 of the first extension beams 320 of one first side beam 300, and the first water outlet connector 220 is inserted into the through holes 321 of the first extension beams 320 of the other first side beam 300.
In addition, at least a plurality of positioning slots 330 are formed on the opposite surfaces of the two first side beams 300 along the length direction thereof, at least a plurality of second heat exchange plates 600 are in one-to-one corresponding connection with at least a plurality of positioning slots 330, and two opposite positioning slots 330 on the two first side beams 300 are used for connecting one second heat exchange plate 600.
In an alternative embodiment, the second side beam 400 is provided with a second extension beam 430, a cavity is formed in the second extension beam 430, the second extension beam 430 is provided with a first exhaust hole 431 and a second exhaust hole 432, the first exhaust hole 431 is formed on the surface of the second extension beam 430 facing the first heat exchange plate 200, and the first exhaust hole 431 is communicated with the exhaust channel 270; the second side beam 400 is provided with an exhaust port 440 communicated with the exhaust chamber 410, and the second exhaust hole 432 faces the exhaust port 440.
In the process of exhausting, the gas in the exhaust channel 270 enters the inner cavity of the second extension beam 430 through the first exhaust hole 431, is then exhausted into the exhaust cavity 410 through the second exhaust hole 432 and the exhaust port 440, and is finally exhausted out of the second side beam 400 through the relief valve 420 on the second side beam 400.
In addition, referring to fig. 8, the number of the second heat exchange plates 600 is plural, and the second water inlet joints 610 and the second water outlet joints 620 are all in a tee structure, and the tee structure is respectively connected to two adjacent second heat exchange plates 600 and the corresponding manifold 310.
The third heat exchange plate 700 is provided with a protective layer on the plate surface facing away from the battery cell 100.
The protective layer is made of a material having the characteristics of water-proof, heat-insulating, corrosion-proof and insulating, and the protective layer is disposed on the surface of the third heat exchange plate 700 facing away from the battery cell 100, so that the third heat exchange plate 700 can be protected to a certain extent.
Embodiments of the present application also provide an electrical device comprising the battery 10 described above. The power utilization device uses at least the battery 10 as a power source, including but not limited to aircraft, automobiles, etc.
In summary, the embodiment of the application provides a battery 10 and an electric device, in which the second heat exchange plate 600 is disposed on the large surface of the battery core 100, the upper and lower end surfaces of the battery core 100 are respectively provided with the third heat exchange plate 700 and the first heat exchange plate 200, and when the cooling liquid is introduced into the first heat exchange plate 200, the second heat exchange plate 600 and the third heat exchange plate 700, the large surface and the upper and lower end surfaces of the battery core 100 are simultaneously water-cooled, so that the heat exchange area is increased, and the thermal management efficiency is improved. In addition, in the case that the battery cell 100 is inverted, heat is more concentrated on the side of the pole 110, and since the aluminum bar is located in the groove 230 of the first heat exchange plate 200, the first heat exchange plate 200 can perform more sufficient heat exchange with the pole 110 when the cooling liquid is introduced into the first heat exchange plate 200.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A battery, comprising:
at least one first heat exchange plate having a heat exchange surface;
at least one electrical connector mounted to the heat exchange surface; the method comprises the steps of,
the battery cells are provided with polar posts, one side of each battery cell with the polar post faces the heat exchange surface, and the battery cells are connected in series and/or in parallel through the electric connecting piece.
2. The battery of claim 1, wherein the heat exchange surface of the first heat exchange plate is formed with grooves in which each of the poles is correspondingly disposed.
3. The battery according to claim 2, further comprising a first heat conductive member provided at least in the recess, and the pole and the first heat exchange plate are capable of heat exchange through the first heat conductive member.
4. The battery of claim 2, wherein the first heat exchange plate comprises:
the first plate body is provided with a concave-convex structure, and one surface of the concave-convex structure is the heat exchange surface; and the second plate body is arranged on one surface of the first plate body, which is away from the heat exchange surface, and forms a cavity for the cooling medium to pass through with the first plate body.
5. The battery of claim 4, further comprising a frame including two first side rails disposed opposite in a first direction, a second heat exchange plate disposed between the two first side rails, and a manifold disposed within the first side rails in communication with the second heat exchange plate.
6. The battery of claim 5, further comprising at least one stiffener set, each stiffener set comprising two stiffener strips disposed between the first plate and the second plate at opposite intervals, wherein the first plate, the second plate and the two stiffener strips surround to form an exhaust channel, one end of the exhaust channel is closed, the other end is open, and a through hole or a thinned area corresponding to the exhaust channel is disposed on the first plate.
7. The battery of claim 6, wherein the frame further comprises two second side beams disposed opposite each other in a second direction, the second direction being perpendicular to the first direction, and wherein an exhaust chamber communicating with the opening is provided inside the second side beams.
8. The battery of claim 7, wherein the frame further comprises a blocking member disposed between and blocking the first and second side rails, respectively; the first side beam, the second side beam and the blocking piece are surrounded to form a containing cavity for containing the battery cell.
9. The battery of claim 8, wherein a side of the second side rail facing away from the accommodating cavity is provided with a mounting hole communicated with the exhaust cavity, and a pressure release valve is mounted in the mounting hole.
10. An electrical device comprising a battery as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694433.6U CN219246789U (en) | 2023-03-31 | 2023-03-31 | Battery and power utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320694433.6U CN219246789U (en) | 2023-03-31 | 2023-03-31 | Battery and power utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219246789U true CN219246789U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320694433.6U Active CN219246789U (en) | 2023-03-31 | 2023-03-31 | Battery and power utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219246789U (en) |
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- 2023-03-31 CN CN202320694433.6U patent/CN219246789U/en active Active
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