CN218996820U - Integrated charge-discharge battery pack system - Google Patents
Integrated charge-discharge battery pack system Download PDFInfo
- Publication number
- CN218996820U CN218996820U CN202223014122.5U CN202223014122U CN218996820U CN 218996820 U CN218996820 U CN 218996820U CN 202223014122 U CN202223014122 U CN 202223014122U CN 218996820 U CN218996820 U CN 218996820U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- control host
- pack module
- module
- inverter
- 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 an integrated charge-discharge battery pack system, comprising: a plurality of battery pack modules which are stacked in sequence from top to bottom and are connected with each other; the control host is connected with the battery pack module and used for performing central control management; the inverter is connected with the control host and used for performing electric energy inversion treatment, and the inverter is connected with the electric energy conversion unit and external electric equipment to perform charge and discharge work; and the positioning connection structure is used for locking and fixing the adjacent battery pack modules and the control host, and the inverter is locked and fixed with the control host. The battery pack modules are arranged to work cooperatively, so that the whole battery pack system has larger capacity, and the use requirement of more electric equipment is met; the battery pack module, the control host and the inverter can be connected and completed when leaving the factory, and the battery pack module, the control host and the inverter are connected and assembled into an integrated structure through the positioning connection structure, so that the process of on-site wiring is reduced, and the use process is more convenient.
Description
Technical Field
The utility model relates to the technical field of battery packs, in particular to an integrated charge-discharge battery pack system.
Background
With the rapid development of electronic technology, battery pack products are widely applied to production and life at present. When the battery pack product is used, the battery pack product needs to be connected with peripheral unit equipment such as a photovoltaic unit or other electric energy conversion units, a control host and an inverter to realize charge and discharge work, the existing battery pack product is usually an independent battery pack, the battery capacity is limited, the increasing energy consumption requirement is difficult to meet, and the system wiring is needed on site, so that the use process is complicated.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an integrated charge-discharge battery pack system, which is used for solving the problems of limited battery pack capacity and complicated use process in the prior art.
To achieve the above and other related objects, the present utility model provides the following technical solutions:
an integrated charge-discharge battery pack system, comprising:
a plurality of battery pack modules which are stacked in sequence from top to bottom and are connected with each other, wherein one side of each battery pack module is provided with a plurality of first connection interfaces;
the control host is connected with the battery pack module and used for performing central control management, and a plurality of second connection interfaces are arranged on two sides of the control host;
the second connecting interface is used for being connected with the battery pack module and the inverter, and the inverter is connected with the electric energy conversion unit and external electric equipment to perform charge and discharge work; the method comprises the steps of,
the positioning connection structure is arranged between the adjacent battery pack modules or between the uppermost battery pack module and the control host, and is used for locking and fixing the adjacent battery pack modules and the control host, and the inverter is locked and fixed with the control host.
According to the technical scheme, the battery pack modules are stacked in sequence and are used cooperatively, so that the whole battery pack system has larger capacity, the use requirements of more electric equipment are met, the battery pack modules or the battery pack modules and the control host are electrically connected through the first connecting interface, the control host and the battery pack modules or the control host and the inverter are electrically connected through the second connecting interface, and the inverter is used for carrying out inversion treatment of electric energy, so that the charging and discharging work is realized, the overall system functions are more comprehensive, and the charging and discharging work requirements of more scenes can be met; the battery pack module, the control host and the inverter can be connected and completed when leaving the factory, the battery pack module and the control host are assembled and fixed through the positioning connection structure, the inverter can be directly locked and fixed on the control host, so that an integrated structure is formed, the process of on-site wiring is reduced, the use process is more convenient, the integrated structure enables the whole system to be more compact, and the occupied space is smaller.
As a preferred embodiment of the present utility model, the positioning and connecting structure includes: the battery pack module comprises a battery pack module, a positioning assembly and a connecting assembly, wherein the battery pack module is arranged on the battery pack module, the connecting assembly is used for limiting the relative position between the battery pack module and the control host, and the connecting assembly is used for relatively locking the battery pack module arranged on the battery pack module or the battery pack module arranged on the battery pack module on the uppermost layer and the control host.
According to the technical scheme, the relative positions between the adjacent battery pack modules and between the battery pack modules and the control host can be limited through the positioning assembly, and the alignment of each battery pack module and the control host is ensured; and the battery pack modules and the control host are relatively connected and fixed through the connecting assembly, so that the stability of the whole assembly of the system is ensured.
As a preferred embodiment of the present utility model, a positioning hole is formed at the top of the battery pack module, and the positioning assembly includes: the battery pack module or the control host is fixed on the battery pack module or the control host, and the positioning head is fixed on the positioning column and is matched with the positioning hole.
According to the technical scheme, the positioning heads are matched with the positioning holes, so that the positions between adjacent battery pack modules and between the battery pack modules and the control host are relatively fixed, and subsequent assembly and fixation are facilitated.
As a preferable scheme of the utility model, the positioning head is in a truncated cone shape, and the edge of the positioning hole is in arc transition.
The technical scheme is realized, so that the positioning head is easier to embed into the positioning hole.
As a preferable mode of the utility model, the bottom of the battery pack module and the bottom of the control host are provided with connecting sleeves, and the positioning columns are connected with the connecting sleeves in a threaded mode.
According to the technical scheme, the positioning assembly is installed and fixed by matching the positioning column with the connecting sleeve.
As a preferred embodiment of the present utility model, the connection assembly includes: the battery pack comprises a battery pack module, fixing pin sheets and locking pieces, wherein the fixing pin sheets are rotatably connected to two sides of the battery pack module, the locking pieces are connected to two sides of the battery pack module or two sides of a control host, which are positioned on the previous layer, and pin openings matched with the locking pieces are formed in the fixing pin sheets.
According to the technical scheme, the adjacent battery pack modules or the battery pack modules and the control host are relatively fixed through the jogging of the pin openings and the locking pieces and the connection and fixation of the locking pieces.
As a preferred embodiment of the present utility model, the connection assembly further includes a plurality of fasteners disposed at the bottom of the battery pack module or the bottom of the control host.
According to the technical scheme, the adjacent battery pack modules or the battery pack modules and the control host are fixed more firmly and stably through the fasteners, and separation can not occur in the transportation and carrying processes.
As a preferable scheme of the utility model, a fixed base is arranged at the bottom of the battery pack module at the lowest layer, and a supporting foot cup and a connecting lock foot are arranged at the bottom of the fixed base.
According to the technical scheme, the system is supported and fixed through the fixing base, and shaking in the use process of the system is reduced.
As a preferable mode of the utility model, a control switch is further arranged on the side, opposite to the side where the first connection interface is arranged, of each battery pack module.
According to the technical scheme, the battery pack module is controlled to start or stop by the control switch, so that the battery pack module is prevented from being started by mistake in the assembly process.
As a preferable scheme of the utility model, the shell of the inverter is provided with a plurality of heat dissipation through holes.
According to the technical scheme, the inverter can generate a large amount of heat during working, and the heat dissipation through hole is beneficial to effectively dissipating heat.
As described above, the present utility model has the following advantageous effects:
the embodiment of the utility model provides an integrated charge-discharge battery pack system, which comprises: a plurality of battery pack modules which are stacked in sequence from top to bottom and are connected with each other, wherein one side of each battery pack module is provided with a plurality of first connection interfaces; the control host is connected with the battery pack module and used for performing central control management, and a plurality of second connection interfaces are arranged on two sides of the control host; the second connecting interface is used for being connected with the battery pack module and the inverter, and the inverter is connected with the electric energy conversion unit and external electric equipment to perform charge and discharge work; and the positioning connection structure is arranged between the adjacent battery pack modules or between the battery pack module at the uppermost layer and the control host, and is used for locking and fixing the adjacent battery pack modules and the control host, and the inverter is locked and fixed with the control host. Through setting up a plurality of battery package modules of stacking in proper order and placing, a plurality of battery package modules work cooperatively for whole battery package system has bigger capacity, satisfies the user demand of more consumer, realizes the electric connection between battery package module or battery package module and the control host through first connecting interface, can realize the electric connection between control host and battery package module or control host and dc-to-ac converter through the second connecting interface, carries out the inversion processing of electric energy by the dc-to-ac converter again, realizes charge-discharge work, and whole system function is more comprehensive, can adapt to the charge-discharge work demand of more scenes; the battery pack module, the control host and the inverter can be connected and completed when leaving the factory, the battery pack module and the control host are assembled and fixed through the positioning connection structure, the inverter can be directly locked and fixed on the control host, so that an integrated structure is formed, the process of on-site wiring is reduced, the use process is more convenient, the integrated structure enables the whole system to be more compact, and the occupied space is smaller.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a battery pack module, a control host, and an inverter according to an embodiment of the utility model.
Fig. 3 is a schematic diagram showing a structure of a battery pack module, a control host, and another view angle of an inverter according to an embodiment of the utility model.
Fig. 4 is an exploded view of the battery pack module, the control host and the inverter according to the embodiment of the utility model.
Corresponding part names are indicated by numerals and letters in the drawings:
1. a battery pack module; 11. a first connection interface; 12. positioning holes; 13. a control switch; 14. a connecting sleeve; 15. a protective cover; 16. connecting the corner pieces; 2. a control host; 21. a second connection interface; 3. a positioning assembly; 31. positioning columns; 32. a positioning head; 4. a connection assembly; 41. a fixing pin sheet; 411. a pin opening; 42. a locking piece; 43. a fastener; 5. a fixed base; 51. a supporting leg cup; 52. connecting the lock legs; 6. an inverter; 61. and a heat dissipation through hole.
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
Please refer to fig. 1 to 4. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are not intended to be critical to the essential characteristics of the utility model, but are intended to fall within the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Referring to fig. 1 to 4, the present utility model provides a plurality of battery pack modules 1 stacked in sequence from top to bottom and connected to each other, wherein one side of the battery pack module 1 is provided with a plurality of first connection interfaces 11; the control host 2 is connected with the battery pack module 1 and used for performing central control management, and a plurality of second connection interfaces 21 are arranged on two sides of the control host 2; the inverter 6 is connected with the control host 2 and used for performing electric energy inversion treatment, the second connection interface 21 is used for being connected with the battery pack module 1 and the inverter 6, and the inverter 6 is connected with the electric energy conversion unit and external electric equipment to perform charge and discharge work; the positioning connection structure is arranged between the adjacent battery pack modules 1 or between the battery pack module 1 at the uppermost layer and the control host 2, and is used for locking and fixing the adjacent battery pack modules 1 and the control host 2, and the inverter 6 is locked and fixed with the control host 2.
Specifically, the location connection structure includes: a positioning assembly 3 for limiting the relative position between the adjacent battery pack modules 1 or between the uppermost battery pack module 1 and the control host 2, and a connecting assembly 4 for locking the adjacent battery pack modules 1 or between the uppermost battery pack module 1 and the control host 2.
A positioning hole 12 is formed in the top of the battery pack module 1, and the positioning assembly 3 comprises: the positioning head 32 is matched with the positioning hole 12, so that the positions of the adjacent battery pack modules 1 and the control host 2 are relatively fixed, and the subsequent assembly and fixation are facilitated; the positioning head 32 is in a truncated cone shape, the edge of the positioning hole 12 is in arc transition, so that the positioning head 32 is easier to be embedded into the positioning hole 12, the bottom of the battery pack module 1 and the bottom of the control host 2 are provided with the connecting sleeve 14, the positioning column 31 is in threaded connection with the connecting sleeve 14, and the positioning assembly 3 is installed and fixed by matching the positioning column 31 with the connecting sleeve 14.
The connection assembly 4 includes: the fixing pin piece 41 and the locking piece 42 are rotatably connected to two sides of the battery pack module 1, the locking piece 42 is connected to two sides of the battery pack module 1 or two sides of the control host 2, which are positioned on the previous layer, the fixing pin piece 41 is provided with a pin opening 411 matched with the locking piece 42, the locking piece 42 adopts a bolt, and the locking piece 42 is in threaded connection with the battery pack module 1 or the control host 2, of course, in practical application, the fixing pin piece 41 can also adopt the bolt as a rotating shaft, namely, a rotating hole is formed in the fixing pin piece 41, the bolt matched with the rotating hole penetrates through the rotating hole and is connected with the battery pack module 1, the rotating connection of the fixing pin piece 41 can be realized, the fixing pin piece 41 can be locked after the installation is completed, the fixing stability is provided, the fixing pin opening 411 is embedded with the locking piece 42, and then the fixing piece 42 is connected and fixed, and the adjacent battery pack module 1 or the battery pack module 1 and the control host 2 can be relatively fixed.
Further, the connecting assembly 4 further comprises a plurality of fasteners 43 arranged at the bottom of the battery pack module 1 or the bottom of the control host 2, the fasteners 43 are preferably screws, and the adjacent battery pack module 1 or the battery pack module 1 and the control host 2 are fixed more firmly and stably through the fasteners 43, so that separation can not occur in the transportation and carrying processes.
In this embodiment, the bottom of the battery pack module 1 located at the lowest layer is provided with a fixing base 5, the bottom of the fixing base 5 is provided with a supporting leg cup 51 and a connecting lock leg 52, the supporting leg cup 51 is in threaded connection with the fixing base 5 so as to adjust the supporting height, the connecting lock leg 52 is in an L shape, and a waist-shaped through groove is formed in the connecting lock leg 52 so as to be connected and fixed with the ground or other installation substrates through fixing pieces such as bolts, and the system is supported and fixed through the fixing base 5, so that shaking occurs in the use process of the system is reduced.
In some embodiments, the connection corner pieces 16 may be further disposed on two sides of the battery pack module 1 or the control host 2, and the connection corner pieces 16 are also provided with a waist-shaped through slot, so that the battery pack system of the embodiment can be fixed on a wall through the connection corner pieces 16, thereby meeting the requirement of wall-mounted installation.
A control switch 13 is further arranged on one side of each battery pack module 1 opposite to the side provided with the first connection interface 11, the start and stop of the battery pack module 1 are controlled through the control switch 13, the battery pack module 1 is prevented from being started by mistake in the assembly process, the control switch 13 is hinged with a flip cover, and the control switch 13 is normally covered to further prevent misoperation; the battery pack modules 1, the control host 2 and the inverter 6 are all of the existing structure, and are not described in detail herein, the battery pack modules 1 can be connected in series or in parallel as required, centralized control and supervision can be performed on each battery pack module 1 through the control host 2, for example, the battery pack modules are controlled to start and stop, the running condition and the residual electric quantity of the battery pack modules are monitored, the inverter 6 and the control host 2 are electrically connected through a connecting wire harness, so that the control of the working state of the inverter 6 is realized, and of course, the corresponding battery pack modules 1 and the inverter 6 can be electrically connected according to actual requirements, and the requirements of charge and discharge work are met.
Meanwhile, the two sides of each battery pack module 1 and the two sides of the control host 2 are detachably connected with the protective cover shell 15, the first connection interface 11, the second connection interface 21 and corresponding connection circuits can be protected through the protective cover shell 15, the aesthetic degree of the whole structure is improved, and openings can be formed in the protective cover shells 15 on the two sides of the control host 2, so that the first connection interface 11 extends out to be connected with external electric equipment or an electric energy conversion unit.
Through setting up a plurality of battery package modules 1 that stack in proper order and place, a plurality of battery package modules 1 collaborative work for whole battery package system has bigger capacity, satisfies the user demand of more consumer, realizes the electric connection between battery package module 1 or between battery package module 1 and the control host 2 through first connection interface 11, can realize the electric connection between control host 2 and battery package module 1 or control host 2 and dc-to-ac converter 6 through second connection interface 21, carries out the inversion processing of electric energy by dc-to-ac converter 6 again, realizes charge-discharge work, and whole system function is more comprehensive, can adapt to the charge-discharge work demand of more scenes; the battery pack module 1, the control host 2 and the inverter 6 can be connected and completed when leaving the factory, the battery pack module 1 and the control host 2 are assembled and fixed through the positioning connection structure, the inverter 6 can be directly locked and fixed on the control host 2, so that an integrated structure is formed, the process of on-site wiring is reduced, the use process is more convenient, the integrated structure enables the whole system to be more compact, and the occupied space is smaller.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
1. An integrated charge-discharge battery pack system, comprising:
a plurality of battery pack modules which are stacked in sequence from top to bottom and are connected with each other, wherein one side of each battery pack module is provided with a plurality of first connection interfaces;
the control host is connected with the battery pack module and used for performing central control management, and a plurality of second connection interfaces are arranged on two sides of the control host;
the second connecting interface is used for being connected with the battery pack module and the inverter, and the inverter is connected with the electric energy conversion unit and external electric equipment to perform charge and discharge work; the method comprises the steps of,
the positioning connection structure is arranged between the adjacent battery pack modules or between the uppermost battery pack module and the control host, and is used for locking and fixing the adjacent battery pack modules and the control host, and the inverter is locked and fixed with the control host.
2. The integrated charge and discharge battery pack system of claim 1, wherein the positioning connection structure comprises: the battery pack module comprises a battery pack module, a positioning assembly and a connecting assembly, wherein the battery pack module is arranged on the battery pack module, the connecting assembly is used for limiting the relative position between the battery pack module and the control host, and the connecting assembly is used for relatively locking the battery pack module arranged on the battery pack module or the battery pack module arranged on the battery pack module on the uppermost layer and the control host.
3. The integrated charge and discharge battery pack system of claim 2, wherein a locating hole is provided at a top of the battery pack module, the locating assembly comprising: the battery pack module or the control host is fixed on the battery pack module or the control host, and the positioning head is fixed on the positioning column and is matched with the positioning hole.
4. The integrated charge and discharge battery pack system of claim 3, wherein the positioning head is in a shape of a circular truncated cone, and the edge of the positioning hole is in a circular arc transition.
5. The integrated charge-discharge battery pack system according to claim 3 or 4, wherein a connecting sleeve is provided at the bottom of the battery pack module and the control host, and the positioning column is screwed to the connecting sleeve.
6. The integrated charge and discharge battery pack system of claim 2, wherein the connection assembly comprises: the battery pack comprises a battery pack module, fixing pin sheets and locking pieces, wherein the fixing pin sheets are rotatably connected to two sides of the battery pack module, the locking pieces are connected to two sides of the battery pack module or two sides of a control host, which are positioned on the previous layer, and pin openings matched with the locking pieces are formed in the fixing pin sheets.
7. The integrated charge and discharge battery pack system of claim 6, wherein the connection assembly further comprises a plurality of fasteners disposed at the bottom of the battery pack module or at the bottom of the control host.
8. The integrated charge-discharge battery pack system according to claim 1, wherein a fixing base is provided at the bottom of the battery pack module located at the lowermost layer, and a supporting leg cup and a connecting locking leg are provided at the bottom of the fixing base.
9. The integrated charge and discharge battery pack system of claim 1, wherein each of the battery pack modules is further provided with a control switch on a side opposite to the side where the first connection interface is provided.
10. The integrated charge-discharge battery pack system of claim 1, wherein the inverter housing is provided with a plurality of heat dissipation vents.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014122.5U CN218996820U (en) | 2022-11-11 | 2022-11-11 | Integrated charge-discharge battery pack system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223014122.5U CN218996820U (en) | 2022-11-11 | 2022-11-11 | Integrated charge-discharge battery pack system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218996820U true CN218996820U (en) | 2023-05-09 |
Family
ID=86215946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223014122.5U Active CN218996820U (en) | 2022-11-11 | 2022-11-11 | Integrated charge-discharge battery pack system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218996820U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117458671A (en) * | 2023-12-18 | 2024-01-26 | 厦门兆为科技有限公司 | Charging and reversing integrated machine capable of carrying multiple groups of battery packs |
-
2022
- 2022-11-11 CN CN202223014122.5U patent/CN218996820U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117458671A (en) * | 2023-12-18 | 2024-01-26 | 厦门兆为科技有限公司 | Charging and reversing integrated machine capable of carrying multiple groups of battery packs |
| CN117458671B (en) * | 2023-12-18 | 2024-03-19 | 厦门兆为科技有限公司 | Charging and reversing integrated machine capable of carrying multiple groups of battery packs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN218996820U (en) | Integrated charge-discharge battery pack system | |
| US7158375B2 (en) | Portable computer system | |
| US20110133559A1 (en) | Server uninterruptable power supply | |
| TW200308135A (en) | DC backup power supply system | |
| WO2021051791A1 (en) | Combined modular household energy storage system | |
| US11799316B2 (en) | Fuel cell system for information technology loads | |
| CN214378655U (en) | Battery pack structure capable of being stacked | |
| EP3935928A1 (en) | Cooling module and cooling module rack | |
| CN214013896U (en) | Energy supply system | |
| CN219066868U (en) | Stacked combined battery pack system | |
| TWI222259B (en) | System level battery integration system | |
| CN2519320Y (en) | Combination of radiator device | |
| WO2023165637A1 (en) | Standard modular capacity-expandable mobile energy storage power source structure | |
| CN213026369U (en) | Modularization lithium battery module | |
| Thomas et al. | Progress in Photovoltaic Components and Systems | |
| CN108832038A (en) | Lithium battery energy storage battery system battery case | |
| CN210129538U (en) | Electricity core support | |
| CN207801404U (en) | A kind of electrical equipment electrical power wiring assembly | |
| WO2021227102A1 (en) | Housing structure for energy storage system and frame-type combined energy storage system having same | |
| CN219303746U (en) | Power-on charging equipment | |
| CN202282413U (en) | Reworkable flexible package electrical core and circuit board structure | |
| CN218735475U (en) | Modular assembly's hand-held type device | |
| CN220086997U (en) | EPS power for engineering | |
| CN206585379U (en) | A kind of family's emergency power supply | |
| CN219760650U (en) | Energy storage converter with solar charging function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |