CN111029500A - Accumulator device with good explosion-proof sealing performance - Google Patents
Accumulator device with good explosion-proof sealing performance Download PDFInfo
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- CN111029500A CN111029500A CN201911181399.7A CN201911181399A CN111029500A CN 111029500 A CN111029500 A CN 111029500A CN 201911181399 A CN201911181399 A CN 201911181399A CN 111029500 A CN111029500 A CN 111029500A
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- shell
- plate
- sealing performance
- proof sealing
- top cover
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/60—Arrangements or processes for filling or topping-up with liquids; Arrangements or processes for draining liquids from casings
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to the technical field of solar storage batteries, and discloses a storage battery device with good explosion-proof sealing performance, which comprises a bottom plate, wherein a shell is fixedly installed at the top of the bottom plate, five separation plates are fixedly installed inside the shell and positioned at the top of the bottom plate, a top cover is fixedly installed at the top of the shell, a control device is embedded in the front of the top cover, two current conducting plates which penetrate through the separation plates are fixedly installed inside the shell, limiting columns which extend into the top cover are fixedly installed at the tops of the current conducting plates, and a negative terminal which penetrates through the top cover is embedded at the left end of the top cover. The storage battery device with good explosion-proof sealing performance has stronger explosion-proof performance and longer service life, avoids the device from generating high temperature and strong current under the condition of less electro-hydraulic, reduces the probability of explosion and improves the use safety of the device.
Description
Technical Field
The invention relates to the technical field of solar storage batteries, in particular to a storage battery device with good explosion-proof sealing performance.
Background
The device for converting chemical energy into electric energy is called a chemical battery, generally called a battery for short, and after discharging, the device can regenerate internal active substances in a charging mode, namely, the electric energy is stored as chemical energy; when discharging is needed, chemical energy is converted into electric energy again, and the battery is called as a storage battery and also called as a secondary battery and is generally used in the fields of solar street lamps, environment-friendly signal lamps and the like.
Traditional solar battery device is after the long time of hand trip, and inside electricity liquid can produce a certain amount of consumption, can't supply, leads to inside high temperature easily, and the electric current is too big, causes unable use, and serious person even has the danger of explosion, so has proposed the battery device that an explosion-proof sealing performance is good and has solved above-mentioned problem of proposing.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the storage battery device with good explosion-proof sealing performance, which has the advantages of good explosion-proof performance and the like, and solves the problems that the traditional solar storage battery device can consume a certain amount of internal electrolyte after being used for a long time, cannot be supplemented, can easily cause overhigh internal temperature and overlarge current, cannot be used and even has explosion danger for serious people.
Technical scheme (I)
In order to achieve the purpose of good explosion-proof performance, the invention provides the following technical scheme: a storage battery device with good explosion-proof sealing performance comprises a bottom plate, wherein a shell is fixedly mounted at the top of the bottom plate, five partition plates are fixedly mounted inside the shell and at the top of the bottom plate, a top cover is fixedly mounted at the top of the shell, a control device is embedded at the front of the top cover, two current-conducting plates which penetrate through the partition plates are fixedly mounted inside the shell, limit posts which extend into the top of the current-conducting plates are fixedly mounted at the tops of the current-conducting plates, a negative terminal which penetrates through the top cover is embedded at the left end of the top cover, a positive terminal which penetrates through the top cover is embedded at the right end of the top cover, a current-conducting post which extends into the negative terminal and the positive terminal is fixedly mounted at the top of the left end of the current-conducting plate and at the top of the right, the top of top cap is provided with the mounting groove, the inside fixed mounting of mounting groove has the relief valve that is located the top cap and six, baffle and top cap pass through fixture block fixed connection, six fluid infusion bottles of quantity are placed to the inside of top cap, the connecting pipe that is located the mounting groove back is placed to the inside of top cap, the inside of shell is inlayed and is equipped with the gusset plate, openly the bottom fixed mounting of current conducting plate has the negative electrode plate that is located the shell inside, the back the bottom fixed mounting of current conducting plate has the positive electrode plate that is located the shell inside, the negative electrode plate includes first electrode grid, first isolation layer and first connecting piece, the outside of first electrode grid is wrapped in to first isolation layer, first connecting piece runs through first isolation layer and first electrode grid fixed connection, the positive electrode plate includes second electrode grid, first electrode grid, The second isolation layer is coated outside the second electrode grid, and the second connection piece penetrates through the second isolation layer and is fixedly connected with the second electrode grid.
Preferably, the bottom of the bottom plate is provided with four anti-skid foot pads, and the thickness of the bottom plate is greater than that of the shell.
Preferably, the division board is the horizontal evenly distributed of equidistant, the top of shell is provided with the connection limit, the shell passes through the PVC viscose with the top cap and bonds.
Preferably, the bottom of top cap is provided with the slot with spacing post looks adaptation, openly the top fixed mounting of current conducting plate has the quantity to be two spacing posts, the back the top fixed mounting of current conducting plate has the quantity to be three spacing post.
Preferably, the fixture blocks are all arranged in a C shape, and the bottom of the baffle is fixedly provided with a connecting block matched with the fixture blocks.
Preferably, the inside of fluid infusion bottle and shell all is filled with sulphuric acid electricity liquid, the front of fluid infusion bottle all is provided with the sealing membrane, controlling means includes casing, control circuit, detection circuitry, converting circuit, control chip, connection port, warning light and display screen, control circuit, detection circuitry, converting circuit and control chip all fixed ann change in the inside of casing, the display screen all inlays with the warning light and establishes the top with the casing, connection port inlays the front of locating the casing.
Preferably, the negative electrode plates and the positive electrode plates are uniformly distributed in a staggered and equidistant mode, and the left side and the right side of the top cover are provided with handle grooves.
Preferably, the negative electrode plate and the front conductive plate are electrically connected through a first connecting piece, and the positive electrode plate and the back conductive plate are electrically connected through a second connecting piece.
Preferably, the first isolation layer and the second isolation layer are AGM separators, the first electrode grid is a lead-calcium negative electrode grid, and the second electrode grid is a lead-calcium positive electrode grid.
(III) advantageous effects
Compared with the prior art, the invention provides a storage battery device with good explosion-proof sealing performance, which has the following beneficial effects:
1. according to the storage battery device with good explosion-proof sealing performance, the negative electrode plate and the positive electrode plate are equally divided into six electricity storage areas through the partition plate, so that the influence among the areas can be effectively prevented, when a certain area inside the storage battery device is subjected to violent reaction and is about to explode, the adjacent areas can form strong resistance to block, meanwhile, the blocking strength can be effectively enhanced by matching the shell with the reinforcing plate, the power formed by explosion is reduced, and the storage battery device has stronger explosion-proof performance.
2. This accumulator apparatus that explosion-proof sealing performance is good, long-time back of using, inside electricity liquid produces certain consumption back, but use instrument passes through the fixture block with the baffle and pries open, opens the relief valve, can use the connecting pipe to insert the liquid supply bottle, to the inside add electricity liquid that corresponds the subregion, carries out the supplementary operation of electricity liquid to the life face of extension fixture, avoids the device because produce high temperature and strong current under the less circumstances of electricity liquid, reduces the probability of explosion, improves its safety in utilization.
Drawings
FIG. 1 is a schematic structural diagram of a storage battery device with good explosion-proof sealing performance according to the present invention;
FIG. 2 is a top view of a battery device with good explosion-proof sealing performance according to the present invention;
FIG. 3 is a top view of a liquid replenishing bottle of a storage battery device with good explosion-proof sealing performance, which is provided by the invention;
FIG. 4 is an enlarged schematic view of a structure at A of the accumulator apparatus with good explosion-proof sealing performance according to the present invention;
fig. 5 is a schematic structural diagram of a negative electrode plate and a positive electrode plate of a storage battery device with good explosion-proof sealing performance.
In the figure: the device comprises a base plate 1, a shell 2, a partition plate 3, a top cover 4, a control device 5, a conductive plate 6, a limiting column 7, a negative electrode terminal 8, a conductive column 9, a positive electrode terminal 10, a baffle 11, a mounting groove 12, a safety valve 13, a clamping block 14, a liquid supplementing bottle 15, a connecting pipe 16, a reinforcing plate 17, a negative electrode plate 18, a first electrode grid 181, a first isolation layer 182, a first connection piece 183, a positive electrode plate 19, a second electrode grid 191, a second isolation layer 192 and a second connection piece 193.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a battery device with good explosion-proof sealing performance comprises a bottom plate 1, a housing 2 is fixedly mounted at the top of the bottom plate 1, four anti-slip pad feet are arranged at the bottom of the bottom plate 1, the thickness of the bottom plate 1 is greater than that of the housing 2, five separation plates 3 are fixedly mounted inside the housing 2 and on the top of the bottom plate 1, a top cover 4 is fixedly mounted at the top of the housing 2, the separation plates 3 are uniformly and transversely distributed at equal intervals, a connecting edge is arranged at the top of the housing 2, the housing 2 and the top cover 4 are bonded by PVC (polyvinyl chloride) adhesive, a control device 5 is embedded in the front of the top cover 4, two conductive plates 6 penetrating through the separation plates 3 are fixedly mounted inside the housing 2, limit posts 7 extending into the top cover 4 are fixedly mounted at the tops of the conductive plates 6, slots matched with the limit posts 7 are arranged at the bottom of the top, the top of the front conductive plate 6 is fixedly provided with two limiting posts 7, the top of the back conductive plate 6 is fixedly provided with three limiting posts 7, the left end of the top cover 4 is embedded with a negative terminal 8 penetrating through the top cover 4, the right end of the top cover 4 is embedded with a positive terminal 10 penetrating through the top cover 4, the top of the left end of the front conductive plate 6 and the top of the right end of the back conductive plate 6 are both fixedly provided with a conductive post 9 respectively extending to the inside of the negative terminal 8 and the positive terminal 10, the top of the top cover 4 is fixedly provided with a baffle plate 11, the top of the top cover 4 is provided with an installation groove 12, the inside of the installation groove 12 is fixedly provided with six safety valves 13 positioned on the top cover 4, the baffle plate 11 and the top cover 4 are fixedly connected through a clamping block 14, the clamping block 14 is arranged in a C shape, six liquid supplementing bottles 15 are placed inside the top cover 4, the liquid supplementing bottles 15 and the shell 2 are filled with sulfuric acid electrolyte, sealing films are arranged on the front faces of the liquid supplementing bottles 15, the control device 5 comprises a shell, a control circuit, a detection circuit, a conversion circuit, a control chip, a connection port, a warning lamp and a display screen, the control circuit, the detection circuit, the conversion circuit and the control chip are fixedly arranged inside the shell, the display screen and the warning lamp are embedded in the top of the shell, the connection port is embedded in the front face of the shell, a connection pipe 16 positioned on the back face of the installation groove 12 is placed inside the top cover 4, a reinforcing plate 17 is embedded inside the shell 2, a negative electrode plate 18 positioned inside the shell 2 is fixedly installed at the bottom of the front conductive plate 6, a positive electrode plate 19 positioned inside the shell 2 is fixedly installed at the bottom of the back conductive plate 6, the negative electrode plates 18 and the positive electrode plates 19 are uniformly distributed at equal intervals, the handle grooves are arranged on the left side and the right side of the top cover 4, the negative electrode plate 18 comprises a first electrode grid 181, a first isolation layer 182 and a first connection sheet 183, the first isolation layer 182 is coated outside the first electrode grid 181, the first connection sheet 183 penetrates through the first isolation layer 182 and is fixedly connected with the first electrode grid 181, the positive electrode plate 19 comprises a second electrode grid 191, a second isolation layer 192 and a second connection sheet 193, the second isolation layer 192 is coated outside the second electrode grid 191, the second connection sheet 193 penetrates through the second isolation layer 192 and is fixedly connected with the second electrode grid 191, the negative electrode plate 18 is electrically connected with the front conductive plate 6 through the first connection sheet 183, the positive electrode plate 19 is electrically connected with the back conductive plate 6 through the second connection sheet 193, the first isolation layer 182 and the second isolation layer 192 are AGM separators, the first electrode grid 181 is a lead-calcium negative electrode grid, the second electrode grid 191 is a lead-calcium positive electrode grid, the negative electrode plate 18 and the positive electrode plate 19 are equally divided into six electricity storage areas through the partition plate 6, so that the influence among the areas can be effectively prevented, when a certain area in the device is subjected to violent reaction and is about to explode, the adjacent areas can form strong resistance to block, meanwhile, the shell 2 is matched with the reinforcing plate 17, so that the blocking strength can be effectively enhanced, the power formed by explosion is reduced, and the explosion-proof performance is stronger.
In conclusion, the storage battery device with good explosion-proof sealing performance can effectively prevent the influence between areas by equally dividing the negative electrode plate 18 and the positive electrode plate 19 into six power storage areas through the partition plate 6, when a certain area in the storage battery device is subjected to violent reaction and is about to explode, the adjacent areas can form strong resistance to block, meanwhile, the shell 2 can effectively enhance the blocking strength by matching with the reinforcing plate 17, the power formed by explosion is reduced, the storage battery device has stronger explosion-proof performance, after long-time use and certain consumption of internal electrolyte, a tool can be used for prying the baffle 11 through the fixture block 14, the safety valve 13 is opened, the connecting pipe 16 can be used for inserting the liquid replenishing bottle 15, the electrolyte is added into the corresponding partition to perform the electrolyte replenishing operation, the service life of the storage battery device is prolonged, the high temperature and strong current of the storage battery device due to less electrolyte are avoided, and the probability of explosion is reduced, the use safety of the solar battery device is improved, and the problems that the traditional solar battery device consumes a certain amount of internal electrolyte after being used for a long time in a hand trip, cannot be supplemented, easily causes overhigh internal temperature and overlarge current, cannot be used and even has explosion danger for serious people are solved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a battery device that explosion-proof sealing performance is good, includes bottom plate (1), its characterized in that: the top fixed mounting of bottom plate (1) has shell (2), the inside of shell (2) and the equal fixed mounting in top that is located bottom plate (1) have quantity be five division board (3), the top fixed mounting of shell (2) has top cap (4), the top of top cap (4) openly inlays and is equipped with controlling means (5), the inside fixed mounting of shell (2) has quantity to be two and all runs through current conducting plate (6) of division board (3), the equal fixed mounting in top of current conducting plate (6) has spacing post (7) that extend to top cap (4) inside, the top left end of top cap (4) inlays and is equipped with negative terminal (8) that run through top cap (4), the top right end of top cap (4) inlays and is equipped with positive terminal (10) that run through top cap (4), openly the left end top of current conducting plate (6) and the equal fixed mounting in right-hand member top of the back current conducting plate (6) have respectively extend to negative terminal (8) and negative terminal The conductive column (9) in the positive terminal (10), a baffle (11) is fixedly mounted at the top of the top cover (4), a mounting groove (12) is formed in the top of the top cover (4), safety valves (13) which are located on the top cover (4) and six in number are fixedly mounted in the mounting groove (12), the baffle (11) is fixedly connected with the top cover (4) through a clamping block (14), liquid replenishing bottles (15) six in number are placed in the top cover (4), connecting pipes (16) located at the back of the mounting groove (12) are placed in the top cover (4), a reinforcing plate (17) is embedded in the shell (2), a negative electrode plate (18) located in the shell (2) is fixedly mounted at the bottom of the conductive plate (6) at the front side, and a positive electrode plate (19) located in the shell (2) is fixedly mounted at the bottom of the conductive plate (6) at the back side, the negative electrode plate (18) comprises a first electrode grid (181), a first isolation layer (182) and a first connecting piece (183), the first isolation layer (182) wraps the outside of the first electrode grid (181), the first connecting piece (183) penetrates through the first isolation layer (182) and is fixedly connected with the first electrode grid (181), the positive electrode plate (19) comprises a second electrode grid (191), a second isolation layer (192) and a second connecting piece (193), the second isolation layer (192) wraps the outside of the second electrode grid (191), and the second connecting piece (193) penetrates through the second isolation layer (192) and is fixedly connected with the second electrode grid (191).
2. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the bottom of bottom plate (1) is provided with the quantity and is four anti-skidding footpads, the thickness of bottom plate (1) is greater than the thickness of shell (2).
3. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the division board (3) are the horizontal evenly distributed of equidistant, the top of shell (2) is provided with the connection limit, shell (2) and top cap (4) are through the PVC viscose bonding.
4. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the bottom of top cap (4) is provided with the slot with spacing post (7) looks adaptation, openly the top fixed mounting of current conducting plate (6) has quantity to be two spacing post (7), the back the top fixed mounting of current conducting plate (6) has quantity to be three spacing post (7).
5. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the fixture blocks (14) are all arranged in a C shape, and the bottom of the baffle (11) is fixedly provided with a connecting block matched with the fixture blocks (14).
6. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the utility model discloses a liquid replenishing bottle, including casing, detection circuitry, converting circuit, control chip, connection port, warning light and display screen, the inside of liquid replenishing bottle (15) and shell (2) all is filled sulphuric acid electricity liquid, the front of liquid replenishing bottle (15) all is provided with the sealing membrane, controlling means (5) are including casing, control circuit, detection circuitry, converting circuit, control chip, connection port, warning light and display screen, control circuit, detection circuitry, converting circuit and control chip all fixed ann change in the inside of casing, the display screen all inlays the top of establishing with the casing with the warning light, connection port inlays the front of locating the casing.
7. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the negative electrode plates (18) and the positive electrode plates (19) are uniformly distributed in a staggered and equidistant mode, and handle grooves are formed in the left side and the right side of the top cover (4).
8. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the negative electrode plate (18) and the front conductive plate (6) are electrically connected through a first connecting piece (183), and the positive electrode plate (19) and the back conductive plate (6) are electrically connected through a second connecting piece (193).
9. A storage battery apparatus having a good explosion-proof sealing performance according to claim 1, wherein: the first isolation layer (182) and the second isolation layer (192) are AGM separators, the first electrode grid (181) is a lead-calcium negative electrode grid, and the second electrode grid (191) is a lead-calcium positive electrode grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911181399.7A CN111029500A (en) | 2019-11-27 | 2019-11-27 | Accumulator device with good explosion-proof sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911181399.7A CN111029500A (en) | 2019-11-27 | 2019-11-27 | Accumulator device with good explosion-proof sealing performance |
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| Publication Number | Publication Date |
|---|---|
| CN111029500A true CN111029500A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911181399.7A Withdrawn CN111029500A (en) | 2019-11-27 | 2019-11-27 | Accumulator device with good explosion-proof sealing performance |
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| Country | Link |
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| CN (1) | CN111029500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878336A (en) * | 2023-12-29 | 2024-04-12 | 广东金悦诚蓄电池有限公司 | Energy-gathering curve grid for lead-acid storage battery with floating charge cycle and double service lives |
-
2019
- 2019-11-27 CN CN201911181399.7A patent/CN111029500A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878336A (en) * | 2023-12-29 | 2024-04-12 | 广东金悦诚蓄电池有限公司 | Energy-gathering curve grid for lead-acid storage battery with floating charge cycle and double service lives |
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Application publication date: 20200417 |
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