CN114221044B - Storage battery cover for rich liquid type lead-acid storage battery - Google Patents
Storage battery cover for rich liquid type lead-acid storage battery Download PDFInfo
- Publication number
- CN114221044B CN114221044B CN202111319030.5A CN202111319030A CN114221044B CN 114221044 B CN114221044 B CN 114221044B CN 202111319030 A CN202111319030 A CN 202111319030A CN 114221044 B CN114221044 B CN 114221044B
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- blocking
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- acid
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- 239000002253 acid Substances 0.000 title claims abstract description 101
- 239000007788 liquid Substances 0.000 title claims description 116
- 230000000903 blocking effect Effects 0.000 claims abstract description 100
- 238000001914 filtration Methods 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 23
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 239000003792 electrolyte Substances 0.000 abstract description 24
- 230000000694 effects Effects 0.000 abstract description 5
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000010992 reflux Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
-
- 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
- H01M50/30—Arrangements for facilitating escape of gases
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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)
- Gas Exhaust Devices For Batteries (AREA)
- Filling, Topping-Up Batteries (AREA)
Abstract
The storage battery cover comprises a large cover and an exhaust cover, wherein two sides of the exhaust cover are respectively provided with an air filtering piece cavity, two air filtering piece mounting holes are formed in the air filtering piece cavities along the width direction of the exhaust cover, the air filtering piece mounting holes close to the edge of the exhaust cover are communicated with a labyrinth channel, air filtering pieces are arranged at the upper part in each air filtering piece mounting hole, the two air filtering pieces are of equal height, the air filtering piece mounting holes which are not communicated with the labyrinth channel are communicated with exhaust holes, the exhaust holes are provided with water blocking tables, the water blocking tables are positioned at the inlets of the exhaust holes, and the lower parts of the exhaust holes are blocked by the water blocking tables; the large cover is provided with a deep cavity acid storage tank corresponding to the air filter mounting cavity, the deep cavity acid storage tank is in a three-layer ladder shape, shallow grooves, medium grooves and deep grooves are respectively formed in the position, close to the outer wall of the large cover, inwards in sequence, and a partition plate is arranged between the medium grooves and the deep grooves. The invention improves the accumulator cover, and the improvements together have the effects of promoting the overflow electrolyte to flow back and avoiding the air filter from being soaked.
Description
Technical Field
The invention relates to a storage battery cover for a rich liquid type lead-acid storage battery, and belongs to the technical field of storage batteries.
Background
The vehicle storage battery is mostly a rich liquid type lead-acid storage battery, a battery tank of the rich liquid type lead-acid storage battery comprises a plurality of single cells, electrolyte is filled in each single cell, a storage battery cover is heat-sealed at the upper part of the rich liquid type lead-acid storage battery tank, the storage battery cover consists of a large cover and an exhaust cover, and the exhaust cover is heat-sealed at the upper part of the large cover. The big cover is provided with a liquid injection hole and a backflow hole, and a labyrinth channel structure formed by acid blocking walls is arranged between the big cover and the exhaust cover corresponding to each single cell. The two sides of the exhaust cover are provided with air filtering sheets, and the outer wall of the exhaust cover beside the air filtering sheets is provided with exhaust holes. The accumulator cover of the common flooded lead-acid accumulator has a plurality of problems, mainly including the following points: 1. the automobile storage battery inevitably generates jolt vibration in the use process, so that electrolyte overflows, and overflowed electrolyte is scattered in a flat area of the large cover, so that the quick reflux of the electrolyte is affected and the electrolyte is easy to keep; 2. when the automobile runs for a long time, a large amount of gas is generated in the storage battery due to long-time overcharge of the storage battery, partial liquid is carried in the gas to be discharged during severe exhaust, the air filter is soaked, and the phenomenon of liquid leakage of the exhaust hole is likely to occur; 3. the water washing in the production process of the storage battery or the condensed water in the exhaust hole in the use process can possibly enter the air filtering piece through the exhaust hole to wet the air filtering piece to cause the air filtering piece to lose efficacy; 4. the large cover is provided with a liquid storage tank or a liquid storage tank which is too shallow at the position corresponding to the air filtering sheet, and the air filtering sheet is easy to be soaked when more electrolyte is in the liquid storage tank; 5. the air exhaust cover and the big cover are in centering error during heat sealing, and the design of the thickened acid blocking wall can compensate the sealing problem caused by the centering error, but the flow area of the labyrinth passage can be reduced.
Disclosure of Invention
The invention aims to improve various problems of the existing storage battery cover and provides a storage battery cover for a rich liquid type lead-acid storage battery, which can promote exhaust, avoid soaking failure of a gas filtering sheet and is beneficial to rapid backflow of electrolyte.
The invention is realized by the following technical scheme:
the storage battery cover comprises a large cover and an exhaust cover, wherein the exhaust cover is heat-sealed on the large cover, the large cover is provided with a liquid injection hole and a backflow hole, the exhaust cover is provided with acid blocking columns, each cell corresponding to each other between the large cover and the exhaust cover is provided with a labyrinth channel formed by acid blocking walls, two sides of the exhaust cover are provided with air filtering sheets, the side wall of the exhaust cover is provided with exhaust holes, two sides of the exhaust cover are respectively provided with air filtering sheet cavities, two air filtering sheet mounting holes are arranged in the air filtering sheet cavities along the width direction of the exhaust cover, the air filtering sheet mounting holes close to the edge of the exhaust cover are communicated with one labyrinth channel, the upper part in each air filtering sheet mounting hole is provided with air filtering sheets, the two air filtering sheets are equal in height, the air filtering sheet mounting holes which are not communicated with the labyrinth channels are communicated with each other, the exhaust holes are provided with water blocking tables, and the water blocking tables are positioned at the inlet of the exhaust holes and are arranged at the lower parts of the exhaust holes of the water blocking tables; the large cover is provided with a deep cavity acid storage tank corresponding to the air filter mounting cavity, the deep cavity acid storage tank is in a three-layer ladder shape, shallow grooves, medium grooves and deep grooves are respectively formed in the position, close to the outer wall of the large cover, inwards in sequence, and a partition plate is arranged between the medium grooves and the deep grooves.
According to the storage battery cover for the rich liquid type lead-acid storage battery, three liquid limiting barriers are sequentially arranged in the width direction of the big cover, each liquid limiting barrier comprises a plurality of blocking tables arranged on the acid blocking wall, each blocking table is obliquely arranged relative to the acid blocking wall at the position, the first liquid limiting barrier is adjacent to the liquid injection hole of each single cell, and the included angle between the six first liquid limiting barrier blocking tables respectively positioned at the single cells and the acid blocking wall at the position is a1; the second liquid limiting block is positioned in the middle of each single cell, and the included angle between the second liquid limiting block baffle table and the acid blocking wall at the position of the six second liquid limiting block baffle tables which are respectively positioned in the middle of the inclined acid blocking walls in each single cell is a2; the third liquid limiting block is positioned at one side of the large cover close to the terminal, a third liquid limiting block baffle is arranged at the acid blocking wall of the gathering arrangement of each single lattice labyrinth channel, the third liquid limiting block baffle forms a branch at the five acid blocking walls positioned in the middle, and the included angle between the third liquid limiting block baffle and the acid blocking wall at the position is a3.
The storage battery cover for the rich liquid type lead-acid storage battery is characterized in that the large cover is provided with the side backflow area, the side backflow area is located in the area, close to the long side of the large cover, of each single cell, the side backflow area is composed of the side-by-side high-level backflow surface and the low-level diversion surface, the high-level backflow surface is higher than the low-level diversion surface, the low-level diversion surface is an inclined surface, and the low-level diversion surface corresponds to a labyrinth passage leading to the backflow hole from high to low.
According to the storage battery cover for the rich liquid type lead-acid storage battery, the triangular area corresponding to the second single lattice and the fifth single lattice is the triangular liquid-blocking step surface, the triangular liquid-blocking step surface is the inclined surface, the hypotenuse of the triangular liquid-blocking step surface is high-position, the straight edge of the triangular liquid-blocking step surface adjacent to the single lattice partition wall is low-position, and the low position of the triangular liquid-blocking step surface is higher than that of the adjacent labyrinth passage.
Above-mentioned battery cover for rich liquid formula lead acid battery, keep off sour post periphery and distribute three and support the location muscle, support the location muscle and be the inclined bar, support the location muscle and extend to keeping off sour post heat-seal table from keeping off sour post middle part, support the thickness of location muscle by keeping off sour post middle part to keeping off sour post heat-seal table and increase gradually.
The storage battery cover for the rich liquid type lead-acid storage battery is characterized in that the water-blocking table is circular, semicircular or small semicircular, the outline of the circular water-blocking table is matched with the vent holes, the circular water-blocking table is provided with water-blocking table vent holes, and the water-blocking table vent holes are positioned in the middle part or the middle side part of the circular water-blocking table; the outline of the semicircular or small semicircular water blocking table is matched and attached with the lower part of the exhaust hole, and the upper part of the water blocking table is formed into a semicircular or large semicircular exhaust channel.
Above-mentioned battery cover for rich liquid formula lead acid battery, annotate the liquid hole periphery and be equipped with annotate liquid Kong Refeng platform, keep off the periphery of sour post and be equipped with and keep off sour post heat-seal platform, big lid and exhaust lid are equipped with peripheral heat-seal platform, keep off sour post heat-seal platform, annotate liquid Kong Refeng platform, keep off sour wall thickness size the same, big lid and exhaust lid's peripheral heat-seal platform thickness is greater than the thickness 10-15% that keeps off sour wall.
The battery cover for the flooded lead-acid battery is characterized in that a1 is 45-60 degrees, a2 is 30-45 degrees, and a3 is 45-60 degrees.
The beneficial effects of the invention are as follows: 1. the duplex air filter structure fully filters air, ensures smooth air exhaust and plays a secondary blocking role on electrolyte in the labyrinth; 2. the large cover is provided with a stepped deep cavity acid storage tank corresponding to the lower part of the air filtering sheet, so that liquid stored in the deep cavity acid storage tank is far away from the air filtering sheet, and the liquid in the acid storage tank is prevented from overflowing to wet the air filtering sheet when the storage battery vibrates; 3. the vent hole is provided with a water blocking table, so that external water or condensed water is prevented from flowing back to the air filtering piece, and the air filtering piece is protected from being soaked by external liquid; 4. three liquid limiting barriers in the storage battery cover can fully block liquid from flowing to the exhaust hole and ensure gas discharge; 5. the large cover is provided with a reflux area, so that the electrolyte can be guided to quickly reflux while the electrolyte is prevented from being scattered; 6. the periphery of the acid blocking column is provided with supporting and positioning ribs which are inclined ribs, so that the exhaust cover is accurately centered relative to the large cover; 7. the thickness of the heat sealing table, the acid blocking wall and the acid blocking wall are reduced, and the flow area of the labyrinth channel is increased, so that the electrolyte backflow is facilitated. In summary, the invention improves the accumulator cover to promote the back flow of overflowed electrolyte, avoid the wet of the air filter and exhaust smoothly.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of a large cover;
FIG. 2 is a schematic view of the structure of the exhaust cover;
FIG. 3 is a schematic view of the construction of a first embodiment of a water blocking station;
FIG. 4 is a schematic view of a second embodiment of a water blocking station;
FIG. 5 is a D-D sectional view of FIG. 1;
FIG. 6 is an enlarged view of a portion of F in FIG. 1;
FIG. 7 is a cross-sectional view A-A of FIG. 6;
FIG. 8 is a cross-sectional view B-B of FIG. 6;
FIG. 9 is a cross-sectional view C-C of FIG. 6;
FIG. 10 is an enlarged partial view at E in FIG. 2;
FIG. 11 is a K-K cross-sectional view of FIG. 10;
FIG. 12 is an enlarged view of a portion of the portion at M in FIG. 1;
FIG. 13 is an enlarged view of a portion of N in FIG. 1;
fig. 14 is a partially enlarged view at S in fig. 1.
The reference numerals in the figures are: 1. a large cover, a low-level diversion surface, a high-level backflow surface, a liquid injection hole and a backflow hole; 6. the device comprises a first liquid limiting barrier, a first liquid limiting barrier table, a 7-1 liquid limiting barrier, a second liquid limiting barrier, a 7-1 liquid limiting barrier table, a second liquid limiting barrier table, a 8-third liquid limiting barrier, a 8-1 liquid limiting barrier table, a third liquid limiting barrier table, a 9-deep cavity liquid storage tank, a 9-1 shallow groove, a 9-2 middle groove, a 9-3 deep groove, a 9-4 baffle, a 10 acid blocking wall, a 11 acid blocking column heat sealing table, a 12 acid blocking column, a 12-1 supporting positioning rib, a 13, an exhaust cover, a 14 peripheral heat sealing table, a 15, a gas filtering sheet, a 16, a gas filtering sheet cavity, a 17, a gas filtering sheet mounting hole, a 18, an exhaust hole, a 19, a water blocking table, a 20 and a Kong Refeng liquid injection table; 21. triangular liquid-blocking step surface.
Detailed Description
Referring to fig. 1 and 2, the battery cover of the present invention includes a large cover 1 heat-sealed to the upper portion of the battery case and a vent cover 13 heat-sealed to the large cover. The big cover is provided with a liquid injection hole 4 for adding electrolyte and a reflux hole 5 for refluxing the electrolyte, and the periphery of the liquid injection hole is provided with a liquid injection Kong Refeng table 20. The exhaust cover is provided with an acid blocking column 12 which is inserted into the liquid injection hole, and an acid blocking column heat sealing table 11 is arranged outside the acid blocking column. Each cell corresponding to each other between the large cover and the exhaust cover is provided with a labyrinth passage formed by adjacent acid blocking walls 10. The two sides of the exhaust cover are provided with air filtering sheets 15, and the side wall of the exhaust cover is provided with an exhaust hole 18. The perimeter of the large and vent caps are provided with a perimeter heat seal station 14.
Referring to fig. 2-4, in order to solve the problems of smooth exhaust and prevention of wet of air filter, the invention is provided with air filter cavities 16 at two sides of an exhaust cover, two air filter mounting holes 17 are arranged in the air filter cavities along the width direction of the exhaust cover, the air filter mounting holes (holes at the lower part in fig. 2) near the edge of the exhaust cover are communicated with a labyrinth channel, the upper part in each air filter mounting hole is provided with an air filter, and the heights of the two air filters are equal. Wherein the air filter mounting holes not in communication with the labyrinth passage communicate with the air discharge holes 18. The double-air-filter structure is characterized in that a labyrinth channel is adopted to enter a gas-liquid mixture in the cavity of the air-filter, and the gas is filtered and separated by one air-filter, and then enters a second air-filter for separation, wherein the second air-filter (the air-filter connected with the exhaust hole) cannot be soaked by electrolyte, so that a good air-filtering effect can be maintained. In order to prevent water and condensed water outside the storage battery from wetting the air filtering sheet, a water blocking table is arranged in the air exhaust hole, the water blocking table is positioned at the inlet of the air exhaust hole, and the lower part of the air exhaust hole is blocked by the water blocking table. The water blocking table 19 is circular, semicircular or small semicircular, as can be seen from fig. 3, the outline of the semicircular or small semicircular water blocking table 19 is matched and attached with the lower part of the exhaust hole, and the upper part of the water blocking table is formed into a semicircular or large semicircular exhaust channel. As can be seen from fig. 4, the outline of the circular water-blocking table 19 is matched with the vent holes, the circular water-blocking table is provided with water-blocking table vent holes, and the water-blocking table vent holes are positioned at the middle part or the middle side part of the circular water-blocking table.
Referring to fig. 1 and 5, the invention is provided with the deep cavity acid storage tank 9, when more liquid is in the labyrinth passage, the air filter plate connected with the upper part of the air filter plate mounting hole of the labyrinth passage is possibly soaked by the liquid, and the liquid flows down into the deep cavity acid storage tank 9 of the large cover through the air filter plate. The deep cavity acid storage tank is positioned at the position of the large cover corresponding to the air filter mounting cavity, the deep cavity acid storage tank is in a three-layer ladder shape, a shallow tank 9-1, a middle tank 9-2 and a deep tank 9-3 are sequentially and inwards arranged at the position close to the outer wall of the large cover respectively, and a partition plate 9-4 is arranged between the middle tank and the deep tank. The volume and depth of the deep cavity acid storage tank are larger than those of the existing liquid storage tank with the same specification and large cover, in particular to a three-layer ladder structure of a ladder acid storage tank, the depth is deepened from outside to inside in sequence, and the more the deep is far from the gas filtering sheet, the deeper is the tank. The structure can store the liquid flowing in from the labyrinth channel in a layered manner, and the liquid is gathered at the deep groove or the middle groove under the condition of a plurality of liquid, and the deep groove or the middle groove is far away from the air filter, so that the air filter can be prevented from being soaked. In addition, be equipped with the baffle between well groove and deep groove, the setting of baffle can stop the liquid in the deep groove and vibrate the excessive under the condition that the battery takes place to vibrate, avoids the battery exhaust hole to appear leaking the liquid condition. According to the invention, through the design of the deep cavity liquid storage tank and the water blocking table, on one hand, the overflow of the internal electrolyte is prevented, and on the other hand, the backflow of the external water is prevented, so that the internal and external treatment can achieve a good effect of preventing the air filtering sheet from being soaked.
Referring to fig. 1, 2 and 12-14, in the abnormal use condition of the vehicle, such as strong vibration of the vehicle, large-angle inclination of the vehicle body, a large amount of gas is generated in the battery, and part of liquid is carried in the gas to flow along the labyrinth channel during severe exhaust, so that the air filter is soaked, and the exhaust hole liquid leakage phenomenon is likely to occur, so that the vehicle is corroded. In order to avoid the above phenomenon, three liquid limiting barriers are sequentially arranged in the labyrinth channel along the width direction of the large cover, namely a first liquid limiting barrier 6 (two-dot chain line areas at the uppermost part in fig. 1), a second liquid limiting barrier 7 (two-dot chain line areas at the middle part in fig. 1) and a third liquid limiting barrier 8 (two-dot chain line areas at the lower part in fig. 1), wherein each liquid limiting barrier comprises a plurality of blocking tables arranged on an acid blocking wall, and each blocking table is obliquely arranged relative to the acid blocking wall at the position. The first liquid limiting block is adjacent to the liquid injection holes of each single cell, the included angle between the six first liquid limiting block baffle tables 6-1 respectively positioned on each single cell and the acid blocking wall at the position is a1, the angle of a1 is 45 degrees to 60 degrees, and the angle of a1 is inclined towards the liquid injection holes, so that gas and liquid are more favorably prevented from overflowing from the liquid injection holes. The second liquid limiting block 7 is positioned in the middle of each single cell, and the included angle between the second liquid limiting block table 7-1 and the acid blocking wall at the position, which is respectively positioned in the middle of the inclined acid blocking wall in each single cell, is 30-45 degrees, and the angle of the a2 is arranged to incline towards the reflow hole 5, so that the gas and the liquid are more favorably blocked from overflowing from the reflow hole; the third liquid limiting baffle 8 is positioned on one side of the large cover close to the terminal, a plurality of third liquid limiting baffle tables 8-1 are arranged at the positions of the plurality of acid blocking walls which are arranged in a gathering way of each single lattice labyrinth passage, the third liquid limiting baffle tables form branches at the positions of the five acid blocking walls positioned in the middle, and the baffle tables of two adjacent acid blocking walls are distributed in a staggered way, so that the labyrinth passage between the two adjacent acid blocking walls forms S-shaped bending, and the blocking of liquid flowing to the deep cavity acid storage tank is enhanced. The third liquid limiting blocking baffle has an included angle a3 with the acid blocking wall, and a3 is 45-60 degrees. The invention is provided with three liquid limiting barriers, which can prevent liquid from flowing to the exhaust hole and gas from passing smoothly. Particularly, the branch type baffle table arranged by the third liquid limiting blocking can enhance the blocking effect on liquid, can prolong the path, is favorable for condensing moisture in acid gas, flows back to each single cell along the channel, and reduces the loss of liquid amount of each single cell. The exhaust cover and the big cover are correspondingly provided with three liquid limiting barriers and corresponding baffle tables.
Referring to fig. 1 and fig. 6-9, the invention improves the problem of electrolyte accumulation in a large cover of a storage battery, and in order to promote the electrolyte to flow back quickly, the large cover is provided with an edge backflow area, the edge backflow area is positioned near the long side of each single cell far away from a terminal, the edge backflow area is six, each block is composed of a high-level backflow surface 3 and a low-level diversion surface 2 which are arranged side by side, the high-level backflow surface is higher than the low-level diversion surface, and the high-level backflow surface is an inclined surface inclined towards the low-level diversion surface. The low-level flow guiding surface is also an inclined surface, the inclined direction of the low-level flow guiding surface is vertical to the inclined direction of the high-level flow returning surface, the long side of the low-level flow guiding surface, which is close to the large cover, is the highest position, and the high-level flow guiding surface corresponds to a labyrinth passage leading to the flow returning hole 5 from high to low. The height difference between the high-order reflux surface and the low-order reflux surface is 0.2 mm at the minimum and 2 mm at the maximum. The structure ensures that overflowed electrolyte flows back quickly under the action of the high-order flow-back surface and the low-order flow-back surface, and cannot be accumulated. The double arrow in fig. 6 is the back flow direction of the overflow electrolyte. In addition, the large cover is provided with the triangular liquid-blocking step surface 21 in a triangular area with a larger area corresponding to the second and fifth single lattices, the triangular liquid-blocking step surface is an inclined surface, the hypotenuse of the triangular liquid-blocking step surface is high, the straight edge of the triangular liquid-blocking step surface adjacent to the single lattice partition wall is low, and the low position of the triangular liquid-blocking step surface is higher than that of the adjacent labyrinth passage. The structure can avoid the electrolyte remaining at the corners of the triangular area and enable the electrolyte entering the triangular liquid-blocking step surface to enter the labyrinth channel quickly.
Referring to fig. 2, 10 and 11, in order to solve the problem of accurate centering of the relatively large cover of the exhaust cover, three supporting and positioning ribs 12-1 are distributed on the periphery of the acid blocking column 12 on the exhaust cover, the supporting and positioning ribs are inclined ribs, extend from the middle part of the acid blocking column to the acid blocking column heat sealing table, and the thickness of the supporting and positioning ribs increases gradually from the middle part of the acid blocking column to the acid blocking column heat sealing table. The positions of the supporting and positioning ribs avoid the notch on the acid blocking column. The bevel angle of the supporting and positioning rib is 15-20 degrees. The support positioning rib is arranged to enable the exhaust cover to be buckled on the big cover, when the acid blocking column is inserted into the liquid injection hole, the support positioning rib which is obliquely arranged is contacted with and supported by the liquid injection hole, so that the guide and self-positioning function is achieved, the acid blocking column is ensured to be centered at the position of the liquid injection hole, the exhaust cover is ensured to be centered at the position of the big cover, the better heat sealing effect is achieved, and the attractive appearance of the battery is ensured. In addition, the thickness dimensions of the acid blocking column heat sealing table 11, the liquid injection Kong Refeng table 20 and the acid blocking wall 10 are the same and smaller than the thickness of the peripheral heat sealing table 14 of the large cover and the exhaust cover, and the thickness of the peripheral heat sealing table 14 is 10-15% greater than the thickness of the acid blocking wall. The thickness of the peripheral heat sealing tables of the large cover and the exhaust cover is matched with that of the existing storage battery cover with the same specification, and the thickness of the acid blocking column heat sealing table, the liquid injection Kong Refeng table and the acid blocking wall is smaller than that of the peripheral heat sealing table 14 of the large cover and the exhaust cover, so that the heat sealing effect is ensured, the flow area of a labyrinth channel is increased, and the quick reflux of electrolyte is facilitated.
Claims (6)
1. The utility model provides a battery cover for rich liquid formula lead acid battery, includes big lid and exhaust lid, and the exhaust lid heat-seal is equipped with annotating liquid hole and backward flow hole on big lid, is equipped with the fender sour post on the exhaust lid, and each single check that corresponds each other between big lid and the exhaust lid is equipped with the maze passageway that comprises the fender sour wall, and exhaust lid both sides are equipped with the gas filter, and exhaust lid lateral wall is equipped with exhaust hole, its characterized in that: the two sides of the exhaust cover are respectively provided with a gas filtering piece cavity, two gas filtering piece mounting holes are formed in the gas filtering piece cavity along the width direction of the exhaust cover, the gas filtering piece mounting holes close to the edge of the exhaust cover are communicated with one labyrinth channel, the upper part in each gas filtering piece mounting hole is provided with a gas filtering piece, the two gas filtering pieces are equal in height, the gas filtering piece mounting holes which are not communicated with the labyrinth channel are communicated with exhaust holes, the exhaust holes are provided with water blocking tables, the water blocking tables are positioned at the inlets of the exhaust holes, and the lower parts of the exhaust holes are blocked by the water blocking tables; the large cover is provided with a deep cavity acid storage groove (9) corresponding to the air filtering sheet mounting cavity, the deep cavity acid storage groove (9) is three-layer ladder-shaped, shallow grooves (9-1), middle grooves (9-2) and deep grooves (9-3) are sequentially and inwards arranged at the positions close to the outer wall of the large cover respectively, and a partition board (9-4) is arranged between the middle grooves (9-2) and the deep grooves (9-3);
three liquid limiting barriers are sequentially arranged in the width direction of the big cover, each liquid limiting barrier comprises a plurality of blocking tables arranged on the acid blocking wall, each blocking table is obliquely arranged relative to the acid blocking wall at the position, the first liquid limiting barrier is adjacent to the liquid injection hole of each single cell, and the included angle between the first liquid limiting barrier blocking table and the acid blocking wall at the position of each single cell is a1; the second liquid limiting block is positioned in the middle of each single cell, and the included angle between the second liquid limiting block baffle table and the acid blocking wall at the position of the six second liquid limiting block baffle tables which are respectively positioned in the middle of the inclined acid blocking walls in each single cell is a2; the third liquid limiting block is positioned at one side of the large cover close to the terminal, a third liquid limiting block baffle table is arranged at the acid blocking wall which is arranged by gathering the single lattice labyrinth channels, the third liquid limiting block baffle table forms a branch at the five acid blocking walls positioned at the middle part, and the included angle between the third liquid limiting block baffle table and the acid blocking wall at the position is a3;
the water-blocking table (19) is circular, semicircular or small semicircular, the outline of the circular water-blocking table is matched with the vent holes, the circular water-blocking table is provided with water-blocking table vent holes, and the water-blocking table vent holes are positioned in the middle or the middle side part of the circular water-blocking table; the outline of the semicircular or small semicircular water blocking table is matched and attached with the lower part of the exhaust hole, and the upper part of the water blocking table is formed into a semicircular or large semicircular exhaust channel.
2. The battery cover for a flooded lead acid battery of claim 1, wherein: the large cover is provided with an edge backflow area, the edge backflow area is located in an area, close to the long edge of the large cover, of each single lattice, the edge backflow area is composed of a high-level backflow surface and a low-level diversion surface which are arranged side by side, the high-level backflow surface is higher than the low-level diversion surface, the low-level diversion surface is an inclined surface, and the low-level diversion surface corresponds to a labyrinth passage leading to the backflow hole from high to low.
3. The battery cover for a flooded lead acid battery of claim 1, wherein: the large cover is a triangular liquid-blocking step surface in the triangular area corresponding to the second and fifth single lattices, the triangular liquid-blocking step surface is an inclined surface, the hypotenuse of the triangular liquid-blocking step surface is high-position, the straight edge of the triangular liquid-blocking step surface adjacent to the single lattice partition wall is low-position, and the low position of the triangular liquid-blocking step surface is higher than the adjacent labyrinth passage.
4. The battery cover for a flooded lead acid battery of claim 1, wherein: three supporting and positioning ribs are distributed on the periphery of the acid blocking column, the supporting and positioning ribs are inclined ribs, the supporting and positioning ribs extend from the middle of the acid blocking column to the acid blocking column heat sealing table, and the thickness of the supporting and positioning ribs increases gradually from the middle of the acid blocking column to the acid blocking column heat sealing table.
5. The battery cover for a flooded lead acid battery of claim 1, wherein: the periphery of the liquid injection hole is provided with a liquid injection Kong Refeng table, the periphery of the acid blocking column is provided with an acid blocking column heat sealing table, the large cover and the exhaust cover are provided with a periphery heat sealing table, the acid blocking column heat sealing table, the liquid injection Kong Refeng table and the acid blocking wall heat sealing table are the same in thickness dimension, and the thickness of the periphery heat sealing tables of the large cover and the exhaust cover is 10-15% greater than that of the acid blocking wall.
6. The battery cover for a flooded lead acid battery of claim 1, wherein: a1 is 45-60 °, a2 is 30-45 °, and a3 is 45-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319030.5A CN114221044B (en) | 2021-11-09 | 2021-11-09 | Storage battery cover for rich liquid type lead-acid storage battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111319030.5A CN114221044B (en) | 2021-11-09 | 2021-11-09 | Storage battery cover for rich liquid type lead-acid storage battery |
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| Publication Number | Publication Date |
|---|---|
| CN114221044A CN114221044A (en) | 2022-03-22 |
| CN114221044B true CN114221044B (en) | 2024-02-09 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836244Y (en) * | 2005-03-16 | 2006-11-08 | 风帆股份有限公司 | Highly safe storage battery cover |
| CN201122611Y (en) * | 2007-11-23 | 2008-09-24 | 风帆股份有限公司 | Lead acid accumulator cover for preventing acid discharging |
| CN111463400A (en) * | 2020-04-14 | 2020-07-28 | 巨江电源科技有限公司 | Anti-overflow lead-acid storage battery cover and storage battery |
| CN112259875A (en) * | 2020-11-04 | 2021-01-22 | 靖江市亚泰新能源科技有限公司 | Marine energy storage module |
-
2021
- 2021-11-09 CN CN202111319030.5A patent/CN114221044B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836244Y (en) * | 2005-03-16 | 2006-11-08 | 风帆股份有限公司 | Highly safe storage battery cover |
| CN201122611Y (en) * | 2007-11-23 | 2008-09-24 | 风帆股份有限公司 | Lead acid accumulator cover for preventing acid discharging |
| CN111463400A (en) * | 2020-04-14 | 2020-07-28 | 巨江电源科技有限公司 | Anti-overflow lead-acid storage battery cover and storage battery |
| CN112259875A (en) * | 2020-11-04 | 2021-01-22 | 靖江市亚泰新能源科技有限公司 | Marine energy storage module |
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| CN114221044A (en) | 2022-03-22 |
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