CN214898584U - Liquid cooling battery box upper cover subassembly reaches battery package including it - Google Patents
Liquid cooling battery box upper cover subassembly reaches battery package including it Download PDFInfo
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- CN214898584U CN214898584U CN202120942027.8U CN202120942027U CN214898584U CN 214898584 U CN214898584 U CN 214898584U CN 202120942027 U CN202120942027 U CN 202120942027U CN 214898584 U CN214898584 U CN 214898584U
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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 application relates to a liquid cooling battery box upper cover subassembly reaches battery package including it belongs to battery cooling technical field. The integrated battery box upper cover assembly with liquid cooling comprises a water cooling plate and an upper cover, wherein the water cooling plate is composed of an expansion surface and a plane, the expansion surface forms a series-parallel flow channel, the water cooling plate is positioned below the upper cover, and the expansion surface is in contact with the lower surface of the upper cover. The water cooling plate is arranged above the water cooling plate, so that the bearing is avoided, and the safety is improved; the flatness is ensured, and the heat transfer efficiency is improved; effective resistance to deformation and cracking; the universality is enhanced. The design work is greatly reduced; the assembly is simple and efficient, the traditional water cooling plate needs additional assembly, the liquid cooling upper cover can be used as a preposed processing to transfer the work to a supplier, and the whole assembly is very simple, rapid and convenient; the space utilization rate is particularly high. For the design that the battery box space is compacter, can practice thrift the space, the upper cover can further be made thin, needn't think thickening for considering intensity, subtract heavy, subtract the material, reduce cost when promoting energy density.
Description
Technical Field
The application relates to a liquid cooling battery box upper cover subassembly reaches battery package including it belongs to battery cooling technical field.
Background
The ideal scheme of current battery package thermal management is that the heating and the cooling of battery package are carried out to the adoption liquid cooling mode, and its heating and cooling effect need better than traditional natural cooling and air-cooled mode a lot. The common liquid cooling plate scheme based on cooling liquid features that several serial and parallel channels are set inside the plate and inlet and outlet ends are set separately at two ends to realize circulation of circulating water. The manufacturing process generally adopts aluminum materials (generally 1 series aluminum) for extrusion and inflation molding, the wall thickness of the whole inflation surface is generally only 0.8-1.2mm (too thick is not beneficial to inflation molding), and therefore the pressure bearing of the whole soaking plate is very limited. When the battery is subjected to sudden working conditions such as impact, extrusion and the like, the battery is very easy to deform and break, so that internal cooling liquid leaks, the battery is short-circuited, and safety accidents are caused; and as above because liquid cooling plate self bearing performance is relatively poor, in order to avoid the bearing problem under most circumstances, can place it in the module upper strata to avoid its dead weight or vibration etc. to lead to the fact irreversible extrusion damage to the board under the operating mode that has the acceleration, but place the water cooling plate on upper strata, it is good to lean on the upper cover to remove the pressure alone, and under the not enough condition of upper cover intensity, the middle heave scheduling problem takes place very easily, and the heat management effect is limited.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, and this design's liquid cooling board except have high thermal conductivity, heat transfer characteristics such as even, anticorrosive, through simple and upper cover coupling, utilize the welding and adopt the structure to be connected upper cover and cold drawing two, make the battery box upper cover of integration area liquid cooling, have following advantage: 1. the water-cooling plate and the upper cover have enhanced capability of resisting deformation (such as middle arch); 2. the overall strength and rigidity are increased; 3. the universality is enhanced, and no matter how the arrangement mode of the modules is changed in the same battery box, the water cooling plate does not need to be changed according to the modules; 4. for the design that the battery box space is compacter, can practice thrift the space, the upper cover can be made thin, needn't be for considering intensity and deliberately the bodiness, subtract heavy, subtract the material, reduce cost when promoting energy density.
The application provides a liquid cooling battery box upper cover subassembly, its battery box upper cover subassembly of taking liquid cooling as an organic whole, including water-cooling board and upper cover, the water-cooling board comprises plane and the plane of expanding, and the plane of expanding forms the series-parallel flow way, and the water-cooling board is located the upper cover below, and the plane of expanding and upper cover lower surface contact.
Furthermore, in the above liquid cooling battery box upper cover subassembly, the upper cover lower surface has the fixed convex closure of a plurality of upper covers, and correspondingly, the mating surface between the water-cooling board runner has a plurality of locating holes that match with the fixed convex closure of upper cover, and the two mutually support, and the department of closely pasting between water-cooling board and the upper cover links together through welded fastening mode or structural adhesive bonding mode.
The application also provides a battery pack which comprises a liquid-cooled battery box upper cover component, an insulating hollow plate, a heat conducting fin, a module and a lower box body; the liquid-cooled battery box upper cover component is an integrated battery box upper cover component with liquid cooling and comprises a water-cooled plate and an upper cover, wherein the water-cooled plate consists of an expansion surface and a plane, the expansion surface forms a series-parallel flow channel, the water-cooled plate is positioned below the upper cover, and the expansion surface is in contact with the lower surface of the upper cover; the module includes electric core, support electric core both ends the support and the piece of converging at electric core both ends, and the piece of converging bends and upwards designs and form the position of bending, and it has the conducting strip to paste in proper order on the piece of converging, and the conducting strip links together with the water-cooling board through running through insulating fretwork board.
Further, in the battery pack, the bus bar is made of aluminum, copper or aluminum-copper composite materials, and the battery core is connected with the bus bar in a welding mode. The heat conducting sheet is made of silica gel, silicon rubber, heat conducting paste or heat conducting gel; heat conductivity coefficient of the heat-conducting sheet: 1.0-3.0W/mK, the heat conducting fin is divided into small blocks, the structural size of the heat conducting fin is matched with the area of the confluence plate and the area of the insulating hollowed plate, the upper part of the heat conducting fin is in contact with the water cooling plate, the middle part of the heat conducting fin penetrates through the insulating hollowed plate, and the lower part of the heat conducting fin is in contact with the confluence plate. The insulating hollow-out plate is a flame-retardant protection plate made of mica plates, epoxy plates or phenolic plates.
The application also provides a manufacturing method of the battery pack, wherein the manufacturing process of the water-cooling plate adopts a blowing process, the water-cooling plate consists of a swelling surface and a plane, the plane adopts 3 series aluminum, the swelling surface adopts 1 series aluminum for extrusion blowing molding, and the swelling surface forms a series-parallel flow channel; the water cooling plate and the upper cover are integrally designed, the water cooling plate is positioned below the upper cover, and the expansion surface is in contact with the lower surface of the upper cover.
Furthermore, in the manufacturing method, the plurality of fixed convex hulls are punched above the upper cover, so that the strength of the upper cover is improved, and the positioning and fixing effects are achieved; correspondingly, a plurality of positioning holes matched with the upper cover fixing convex hulls are punched on the meshing surface between the water cooling plate runners, the positioning holes and the upper cover fixing convex hulls are matched with each other, the close joint is generally welded and fixed or structurally glued, meanwhile, related structural glue can be coated on the expansion surface for improving the overall connection performance, the upper cover and the water cooling plate are integrally connected, and the liquid cooling upper cover is formed.
Furthermore, in the manufacturing method, the insulating hollow plate is arranged above the heat conducting fin and is hollow at the position corresponding to the confluence piece, the hollow size is slightly smaller than the size of the confluence piece, the confluence piece is pressed, and the phenomenon that the confluence piece is tilted in the vibration process and pierces the heat conducting fin is avoided; the insulating hollow-out plate has certain thickness, can play the spacing effect of support, no matter how the vibration, can not impale the conducting strip and cause the short circuit.
Further, in the manufacturing method, the bus bar is bent upwards to form a bent part, the heat conducting fins are sequentially attached to the bus bar and are connected with the water cooling plate through penetrating through the insulating hollow plate.
The application relates to a battery pack: the water cooling device comprises an upper cover, a water cooling plate, an insulating hollow plate, a heat conducting gasket, a module and a lower box body. The heat transfer principle is as follows: the heat that electricity core produced transmits to both ends and converges the flow sheet, and the flow sheet is bent upwards and is designed, collects the heat to the top (fig. 3), then attached conducting strip, insulating fretwork board, water-cooling board in proper order in flow sheet top, utilizes the recirculated cooling liquid to take away the heat.
The bus bar is usually made of aluminum, copper or aluminum-copper composite materials, is a good thermal conductor and has the following main functions: the battery core is welded on the bus bar sheet, collects current and collects heat;
the heat conducting sheet is generally selected from silica gel, silicon rubber, heat conducting paste, heat conducting gel and the like, and the heat conductivity coefficient is as follows: 1.0-3.0W/mK, the silicon gel sheet is divided into small blocks, the structural size is matched with the area of the confluence sheet and the area of the insulating hollowed-out plate, the upper contact water-cooling plate penetrates through the insulating hollowed-out plate, the lower contact water-cooling plate plays a role in connecting a heat source (confluence sheet) and a cold source (water-cooling plate), and meanwhile, the silicon gel sheet has higher insulation resistance and breakdown voltage and plays a role in insulation protection;
the insulating fretwork board is fire-retardant guard plates such as lectotype mica plate usually, epoxy, phenolic aldehyde board, and ordinary design is that the insulating protection is done to direct utilization conducting strip, but the general material of conducting strip is softer, and the piece that converges is sharp hard thing, even the conducting strip after the modification also hardly solves wearing and tearing and the puncture problem among the vibration process. Therefore, when in design, the position of the insulating plate corresponding to the confluence sheet is hollowed out. The design is characterized in that the hollow size is slightly smaller than the size of the bus bar piece, the bus bar piece is pressed, and the bus bar piece is prevented from being warped and piercing the heat conducting piece in the vibration process; the insulating hollow-out plate has certain thickness, can play the spacing effect of support, no matter how vibrate, can not pierce through the conducting strip and cause the short circuit.
The water-cooled plate can be made by blowing process, which comprises a blowing plane and a plane, wherein the plane is made of 3 series aluminum, the blowing plane is made of 1 series aluminum by extrusion and blowing molding, and the blowing plane forms a series-parallel flow channel. The water cooling plate and the upper cover assembly are integrally designed, the water cooling plate is located below the upper cover, and the expansion surface is in contact with the lower surface of the upper cover. A plurality of fixed convex hulls are punched above the upper cover, so that the strength of the upper cover is improved, and the positioning and fixing effects are realized; correspondingly, a plurality of positioning holes matched with the upper cover fixing convex hulls are punched on the meshing surface between the water cooling plate runners, the positioning holes and the upper cover fixing convex hulls are matched with each other, the close joint is generally welded and fixed or structurally glued, meanwhile, related structural glue can be coated on the expansion surface for improving the overall connection performance, the upper cover and the water cooling plate are integrally connected, and the liquid cooling upper cover is formed.
The application has the following technical effects and advantages:
(1) the water cooling plate is arranged above the water cooling plate, so that the bearing is avoided, and the safety is improved;
(2) the ability of the water cooling plate and the upper cover to resist deformation (such as middle arch) is enhanced, and the flatness is ensured, so that the heat transfer efficiency is improved;
(3) the upper cover and the water cooling plate are overlapped, the integral strength and rigidity are increased, the upper cover and the water cooling plate complement each other, when the water cooling plate is subjected to sudden working conditions such as impact, extrusion and the like, deformation and fracture are effectively resisted, and the safety is further improved;
(4) the universality is enhanced. In the same battery box, no matter how the arrangement mode of the modules is changed, the design of the water cooling plate does not need to be changed according to the change of the modules, so that the design work is greatly reduced;
(5) the assembly is simple and efficient, the traditional water cooling plate needs additional assembly, the liquid cooling upper cover can be used as a preposed processing to transfer the work to a supplier, and the whole assembly is very simple, rapid and convenient;
(6) the space utilization rate is particularly high. For the design that the battery box space is compacter, can practice thrift the space, the upper cover can further be made thin, needn't think thickening for considering intensity, subtract heavy, subtract the material, reduce cost when promoting energy density.
Drawings
Fig. 1 is an overall configuration diagram of a battery pack according to the present application.
Fig. 2 is an overall exploded view of the battery pack of the present application.
Fig. 3 is a block diagram of the present application.
Fig. 4 is an exploded view of the upper cover structure of the present application.
FIG. 5 is a sectional view of the upper cover water-cooling plate structure of the present application.
Fig. 6 is a top view of the upper cover water-cooled plate combination of the present application.
Fig. 7 is a sectional view of the upper cover water-cooled plate of the present application taken along the direction a-a of fig. 6.
Fig. 8 is a combined cross-sectional view of the upper cover water-cooled plate of the present application taken along the direction B-B of fig. 6.
Detailed Description
The following detailed description of embodiments of the present application refers to the accompanying drawings. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
In the figure, 1 is a battery pack, 2 is an upper cover, 3 is a water cooling plate (liquid cooling plate), 4 is an insulating hollowed-out plate (insulating plate), 5 is a heat conduction (gasket), 6 is a (battery) module, 7 is a lower box body, 8 is an electric core, 9 is a support, 10 is a confluence plate, 11 is a bending part, 12 is an upper cover fixing convex hull, 13 is a liquid cooling plate expansion surface, 14 is a positioning hole, 15 is a water cooling plate flow channel, and 16 is a water cooling plate fixing hole.
As shown in the figure, the whole technical scheme of this application is a liquid cooling battery box upper cover subassembly, and battery box upper cover subassembly of liquid cooling is taken in its integration, including water-cooling plate 3 and upper cover 2, and water-cooling plate 3 comprises plane and the plane of expanding, and the plane of expanding forms the series-parallel runner, and water-cooling plate 3 is located upper cover 2 below, and the face of expanding and upper cover lower surface contact.
In the liquid cooling battery box upper cover subassembly, the upper cover lower surface has a plurality of upper cover fixed convex hulls 12, and correspondingly, the mating surface between the water-cooling plate runner has a plurality of locating holes 14 matched with the upper cover fixed convex hulls, and the two are mutually matched, and the clinging position between the water-cooling plate 3 and the upper cover 2 is connected together by a welding fixing mode or a structural adhesive bonding mode.
The battery pack 1 comprises a liquid cooling battery box upper cover component, an insulating hollowed-out plate 4, a heat conducting fin 5, a module 6 and a lower box body 7; the liquid-cooled battery box upper cover component is an integrated battery box upper cover component with liquid cooling and comprises a water-cooled plate 3 and an upper cover 2, wherein the water-cooled plate 3 consists of an expansion surface and a plane, the expansion surface forms a series-parallel flow channel, the water-cooled plate 3 is positioned below the upper cover 2, and the expansion surface is in contact with the lower surface of the upper cover; the module 6 includes electric core 8, support frame 9 at electric core both ends and the piece 10 that converges at electric core both ends, and the piece 10 that converges is bent and is upwards designed and form the position 11 of bending, and it has conducting strip 5 to paste in proper order on the piece 10 that converges, and conducting strip 5 links together with water-cooling plate 3 through running through insulating fretwork board 4.
In the battery pack 1, the bus bar 10 is made of aluminum, copper or an aluminum-copper composite material, and the battery cell 8 is connected with the bus bar by welding. The heat conducting sheet 5 is made of silica gel, silicon rubber, heat conducting paste or heat conducting gel; thermal conductivity of the thermally conductive sheet 5: 1.0-3.0W/mK, the heat conducting strip 5 is divided into small blocks, the structural size of the heat conducting strip 5 is matched with the area of the afflux sheet 10 and the area of the insulating hollowed-out plate, the upper part of the heat conducting strip is contacted with the water cooling plate 3, the middle part of the heat conducting strip penetrates through the insulating hollowed-out plate 4, and the lower part of the heat conducting strip is contacted with the afflux sheet 10. The insulating hollow-out plate 4 is a flame-retardant protection plate made of mica plates, epoxy plates or phenolic plates.
The method for manufacturing the battery pack comprises the following steps: the manufacturing process of the water-cooling plate 3 adopts a blowing process, the water-cooling plate 3 consists of a blowing plane and a plane, the plane adopts 3 series aluminum, the blowing plane adopts 1 series aluminum for extrusion and blowing molding, and the blowing plane forms a series-parallel flow channel; water- cooling board 3 and 2 integrated designs of upper cover, and water-cooling board 3 is located upper cover 2 below, and the face that expands contacts with the upper cover lower surface.
A plurality of fixed convex hulls 12 are punched above the upper cover 2, so that the strength of the upper cover is improved, and the positioning and fixing effects are achieved; correspondingly, a plurality of positioning holes 14 matched with the upper cover fixing convex hulls are punched on the meshing surface between the runners of the water cooling plate 3, the positioning holes and the positioning holes are matched with each other, the close joint part is generally welded and fixed or bonded by structural adhesive, meanwhile, related structural adhesive can be coated on the expansion surface for improving the integral connection performance, the upper cover 2 and the water cooling plate 3 are integrally connected, and the liquid cooling upper cover is formed.
The insulating hollow-out plate 4 is arranged above the heat conducting fin 5 and is hollow out at the position corresponding to the bus bar 10, the hollow-out size is slightly smaller than the size of the bus bar, the bus bar is pressed, and the bus bar is prevented from tilting in the vibration process and piercing the heat conducting fin 5; the insulating hollowed-out plate 4 has a certain thickness, can play a role in supporting and limiting, and cannot pierce the heat conducting sheet to cause short circuit no matter how the insulating hollowed-out plate vibrates.
The confluence piece 10 is bent upwards to form a bent part 11, the confluence piece 10 is sequentially attached with the heat conducting pieces 5, and the heat conducting pieces 5 are connected with the water cooling plate 3 through penetrating through the insulating hollow-out plate 4.
In fig. 2, the solar cell module comprises an upper cover 2, a water cooling plate 3, an insulating hollow plate 4, a heat conducting sheet 5, a cell module 6 and a lower box 7.
As shown in fig. 3, heat generated in the battery module 6 is transferred in the radial direction of the battery, and the bus bar 10 is a member for collecting current and heat, and therefore, the heat needs to be transferred by bending upward to form a bent portion 11.
The heat conducting sheet 5 is an important part for heat transmission, and is placed at the bending part 11 of the bus bar 10 for heat transmission, but the heat conducting sheet is generally soft in material, the bus bar is sharp and hard, and even the modified heat conducting sheet is difficult to solve the problems of abrasion and puncture in the vibration process. Therefore, as shown in fig. 2, in the design, the insulating plate 4 is disposed above the heat conducting sheet 5 and is hollowed out at a position corresponding to the bus bar 10. The design is characterized in that the hollow size is slightly smaller than the size of the bus bar piece, the bus bar piece is pressed, and the bus bar piece is prevented from being warped and piercing the heat conducting piece in the vibration process; the insulating hollow-out plate has certain thickness, can play the spacing effect of support, no matter how vibrate, can not pierce through the conducting strip and cause the short circuit.
As shown in fig. 4, the water-cooling plate 3 is arranged above the insulating plate 4, the expansion surface is arranged below the upper cover 2 and contacts with the upper cover, and a plurality of fixing convex hulls 12 are punched above the upper cover, so that the strength of the upper cover is improved, and the positioning and fixing effects are achieved; correspondingly, as shown in fig. 5, a plurality of positioning holes 14 or water-cooling plate fixing holes 16 matched with the upper cover fixing convex hulls are punched on the meshing surface between the water-cooling plate runners, the positioning holes and the water-cooling plate fixing holes are matched with each other, the close-fitting parts are generally welded and fixed or structurally glued and bonded, meanwhile, in order to increase the overall connection performance, related structural glue can be coated on the expansion surface, and the upper cover 2 and the water-cooling plate 3 are integrally connected to form the liquid-cooling upper cover assembly.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.
Claims (6)
1. The utility model provides a liquid cooling battery box upper cover subassembly which characterized in that, it is the battery box upper cover subassembly of integration area liquid cooling, includes water-cooling board and upper cover, and the water-cooling board comprises plane of expansion and plane, and the plane of expansion forms the series-parallel runner, and the water-cooling board is located the upper cover below, and the plane of expansion and the lower surface contact of upper cover.
2. The liquid-cooled battery box upper cover assembly of claim 1, wherein the lower surface of the upper cover has a plurality of upper cover fixing protrusions, and correspondingly, the mating surface between the flow passages of the water-cooled plate has a plurality of positioning holes matching with the upper cover fixing protrusions, and the positioning holes and the upper cover are matched with each other, and the water-cooled plate and the upper cover are connected together at the close contact position by welding or structural adhesive.
3. A battery pack is characterized by comprising a liquid-cooled battery box upper cover component, an insulating hollow-out plate, a heat conducting fin, a module and a lower box body; the liquid-cooled battery box upper cover component is an integrated battery box upper cover component with liquid cooling and comprises a water-cooled plate and an upper cover, wherein the water-cooled plate consists of an expansion surface and a plane, the expansion surface forms a series-parallel flow channel, the water-cooled plate is positioned below the upper cover, and the expansion surface is in contact with the lower surface of the upper cover; the module includes electric core, support electric core both ends the support and the piece of converging at electric core both ends, and the piece of converging bends and upwards designs and form the position of bending, and it has the conducting strip to paste in proper order on the piece of converging, and the conducting strip links together with the water-cooling board through running through insulating fretwork board.
4. The battery pack according to claim 3, wherein the bus bar is made of aluminum, copper or aluminum-copper composite material, and the battery cell is connected with the bus bar by welding.
5. The battery pack according to claim 4, wherein the heat conductive sheet is made of silicone rubber, heat conductive paste, or heat conductive gel; heat conductivity coefficient of the heat-conducting sheet: 1.0-3.0W/mK, the heat conducting fin is divided into small blocks, the structural size of the heat conducting fin is matched with the area of the confluence plate and the area of the insulating hollowed plate, the upper part of the heat conducting fin is in contact with the water cooling plate, the middle part of the heat conducting fin penetrates through the insulating hollowed plate, and the lower part of the heat conducting fin is in contact with the confluence plate.
6. The battery pack of claim 5, wherein the insulating stencil is a flame retardant protective sheet of mica board, epoxy board, or phenolic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120942027.8U CN214898584U (en) | 2021-05-06 | 2021-05-06 | Liquid cooling battery box upper cover subassembly reaches battery package including it |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120942027.8U CN214898584U (en) | 2021-05-06 | 2021-05-06 | Liquid cooling battery box upper cover subassembly reaches battery package including it |
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| CN214898584U true CN214898584U (en) | 2021-11-26 |
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| CN202120942027.8U Active CN214898584U (en) | 2021-05-06 | 2021-05-06 | Liquid cooling battery box upper cover subassembly reaches battery package including it |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520386A (en) * | 2022-03-25 | 2022-05-20 | 马鞍山纳百川热交换器有限公司 | Integrated cooling structure and method for box body cover |
| WO2024037655A1 (en) * | 2022-08-19 | 2024-02-22 | 湖北亿纬动力有限公司 | Battery module upper cover structure, battery module, and battery pack |
-
2021
- 2021-05-06 CN CN202120942027.8U patent/CN214898584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114520386A (en) * | 2022-03-25 | 2022-05-20 | 马鞍山纳百川热交换器有限公司 | Integrated cooling structure and method for box body cover |
| WO2024037655A1 (en) * | 2022-08-19 | 2024-02-22 | 湖北亿纬动力有限公司 | Battery module upper cover structure, battery module, and battery pack |
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Effective date of registration: 20230411 Address after: Room 1602, 16th Floor, High Definition Media Building, No. 28 South Tiancheng Road, High Speed Rail New City, Xiangcheng District, Suzhou City, Jiangsu Province, 215133 Patentee after: Suzhou Yuan'an Energy Technology Co.,Ltd. Address before: Room b275, exhibition hall, 1st floor, 11 Guotai Road, Yangpu District, Shanghai, 200433 Patentee before: Shanghai binei Information Technology Co.,Ltd. |
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Effective date of registration: 20230918 Address after: Room 801-3, 8th Floor, HD Media Building, No. 28 South Tiancheng Road, High Speed Rail New City, Suzhou City, Jiangsu Province, 215133 Patentee after: Suzhou Yichu Energy Technology Co.,Ltd. Address before: Room 1602, 16th Floor, High Definition Media Building, No. 28 South Tiancheng Road, High Speed Rail New City, Xiangcheng District, Suzhou City, Jiangsu Province, 215133 Patentee before: Suzhou Yuan'an Energy Technology Co.,Ltd. |
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