Glass fiber reinforced lead-acid battery pole plate ventilation structure

Abstract

The invention discloses a glass fiber reinforced lead-acid battery pole plate ventilation structure, and relates to the technical field of energy storage devices, the glass fiber reinforced lead-acid battery pole plate ventilation structure comprises a battery body, the battery body comprises a tank, a positive plate, a negative plate, a partition plate, a terminal and a cover plate, the cover plate is fixedly connected to the top of the tank through a screw, and the cover plate is fixedly connected to the top of the tank through a screw; the positive plate and the negative plate are placed in an inner cavity of the tank, the positive plate and the negative plate are separated by the partition plate, the positive plate and the negative plate are respectively connected with the corresponding terminals, and a ventilation mechanism is arranged at the bottom of the cover plate. Through cooperative use of the ventilation mechanism and the acid adding liquid level limiting mechanism, the gas discharging speed during acid adding of the lead-acid battery can be increased, the acid adding speed and the acid adding liquid level are limited at the same time, the performance of the lead-acid battery is guaranteed, and the service life of the lead-acid battery is prolonged.

Description

Technical Field

[0001] This invention relates to the field of energy storage device technology, specifically to a glass fiber reinforced lead-acid battery plate permeable structure. Background Technology

[0002] A lead-acid battery is a secondary battery that uses lead and its oxides as electrode materials and sulfuric acid solution as electrolyte. It consists of a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate is made of lead dioxide and is dark brown in color. It is the site of oxidation reaction during battery discharge. The negative electrode plate is made of spongy pure lead and is gray in color. It is the site of reduction reaction during battery discharge. The electrolyte is a 27% to 37% dilute sulfuric acid solution, which acts as an ion conduction medium and participates in the electrochemical reaction. The separator is usually made of ultra-fine glass fiber to prevent direct contact between the positive and negative electrodes, which could lead to a short circuit, while allowing ions to migrate freely.

[0003] After manually adding acid to a lead-acid battery, the gas produced is usually released through the exposed vent. Without external equipment, the gas can only be released naturally, which is obviously slow. Furthermore, it is difficult for users to control the appropriate acid level in time when adding acid. If the level is too low, the upper part of the battery plates will be exposed to the acid, which will reduce the area of ​​the battery plates participating in the electrochemical reaction and thus reduce the battery capacity. If the level is too high, the overflowing acid will corrode the battery terminals and surrounding components, causing the battery to self-discharge and shorten its lifespan, thus accelerating the depletion of the battery's lifespan.

[0004] Combining the above issues, we find that existing lead-acid batteries on the market cannot simultaneously avoid the problems mentioned above when in use. Even if they can be solved, they require external tools to achieve the desired effect. Therefore, we propose a glass fiber reinforced lead-acid battery plate permeable structure. Summary of the Invention

[0005] The purpose of this invention is to provide a glass fiber reinforced lead-acid battery plate permeable structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a glass fiber reinforced lead-acid battery plate ventilated structure, comprising a battery body, the battery body comprising a cell tank, a positive electrode plate, a negative electrode plate, a separator, terminals, and a cover plate, the cover plate being fixedly connected to the top of the cell tank by screws, the positive electrode plate and the negative electrode plate being placed in the inner cavity of the cell tank, the positive electrode plate and the negative electrode plate being separated by the separator, the positive electrode plate and the negative electrode plate being respectively connected to corresponding terminals, and a ventilated mechanism being provided at the bottom of the cover plate; The ventilation mechanism includes an exhaust unit, which is located at the bottom of the cover plate and is used to exhaust the gas generated after adding acid. The ventilation mechanism also includes an acid addition rate limiting unit, which is disposed inside the exhaust unit. The acid addition rate limiting unit works in conjunction with the exhaust unit and is used to indicate when the acid addition rate is too fast. The inner wall of the cover plate is provided with an acid level limiting mechanism, which is used in conjunction with the exhaust unit to limit the acid level.

[0007] Preferably, the exhaust unit includes a positioning cylinder fixedly connected to the inner wall of the cover plate. A round tube is slidably connected to the bottom of the positioning cylinder, and a square tube is fixedly connected to the bottom of the round tube. Two rotating rods are rotatably connected to the inner wall of the square tube via bearings. Rotating plates are fixedly connected to the surfaces of the two rotating rods. The opposite sides of the upper ends of the two rotating plates are in contact with each other. The top of the positioning cylinder extends to the top of the cover plate and is fixedly connected to a one-way valve. Turbulence grooves are formed on the surfaces of the two rotating plates. The rotating plates are made of perfluoroalkoxyalkanes.

[0008] Preferably, the inner side of the square tube is provided with a sliding groove, and a stop block is slidably connected to the inner cavity of the sliding groove. One side of the stop block contacts one side of the rotating plate. The stop block includes an inner layer and an outer layer. The inner layer is made of glass fiber material, and the outer layer is made of silicone material.

[0009] Preferably, each of the grooves has two first springs fixedly connected to its inner wall, and one end of each of the two first springs is fixedly connected to one side of the abutment.

[0010] Preferably, a second spring is fixedly connected to the inner wall of the positioning cylinder, the bottom end of the second spring is fixedly connected to the top of the circular tube, two guide blocks are fixedly connected to the surface of the circular tube, two guide grooves are opened on the inner wall of the positioning cylinder, and the surface of the guide block is slidably connected to the inner cavity of the guide groove.

[0011] Preferably, the acid addition speed limiting unit includes two elastic strips, a plurality of metal blocks are fixedly connected to one side of the elastic strips, a positioning rod is fixedly connected to the inner side of the square tube, and a copper cover is fixedly connected to one end of the positioning rod. The metal blocks and the copper cover are used in conjunction.

[0012] Preferably, the acid level limiting mechanism includes a filling nozzle, which is fixedly connected to the top of the cover plate. A floating tube is slidably connected to the inner cavity of the filling nozzle. The bottom end of the floating tube extends to the bottom of the cover plate. A connecting rod is fixedly connected to the surface of the floating tube. One end of the connecting rod is fixedly connected to the surface of the circular tube. A limiting ring is fixedly connected to the top of the floating tube. The bottom of the limiting ring contacts the top of the filling nozzle. Floating plates are fixedly connected to the surfaces of both rotating plates. The floating plates are made of foamed lead material.

[0013] Preferably, the inner wall of the liquid inlet is provided with a first sliding hole, and the inner wall of the floating tube is provided with a second sliding hole, and the inner cavities of the first sliding hole and the second sliding hole are slidably connected to a sealing plate.

[0014] Preferably, the inner wall of the liquid inlet is provided with a placement hole, and a round rod is rotatably connected to the inner cavity of the placement hole. The bottom end of the round rod is rotatably connected to the inner wall of the first sliding hole. The surface of the round rod is fixedly connected to the inner wall of the sealing plate. A torsion spring is slidably sleeved on the surface of the round rod. One end of the torsion spring is fixedly connected to the top of the sealing plate, and the other end of the torsion spring is fixedly connected to the inner wall of the placement hole.

[0015] Preferably, both the filling nozzle and the floating tube have overflow holes on their surfaces. The surface of the filling nozzle is fixedly connected to an overflow tube, which is connected to the overflow hole. A sealing cap is fitted onto the surface of the filling nozzle. The sealing cap is fixedly connected to the top of the cover plate by screws. The inner top of the sealing cap adopts a conventional sealing structure and is in close contact with the top of the floating tube.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up an exhaust unit, the present invention can realize the timely discharge of gas generated after adding acid. During the exhaust process, the two rotating plates are flipped, and the end of the rotating plate with the turbulence groove is moved in the acid solution, causing the acid solution to oscillate and accelerate the discharge of gas in the acid solution, thereby improving the exhaust efficiency and extending the service life of the battery.

[0017] 2. By setting an acid addition rate limiting unit, the present invention can limit the acid addition rate, avoid excessive acid addition, which would aggravate the internal chemical reaction, cause electrolyte splashing, thereby increasing the risk factor and reducing the battery life.

[0018] 3. This invention, by setting up an acid level limiting mechanism, can monitor the acid level through the contact of the float plate with the acid, causing the float tube to move upward. Users can know that the acid level has been filled to the correct level by observing the upward movement of the float tube, thus avoiding situations where the level is too high or too low, thereby improving the battery's lifespan. Through the combined use of the venting mechanism and the acid level limiting mechanism, the gas discharge rate during acid addition to the lead-acid battery can be increased, while simultaneously limiting the acid addition speed and acid level, ensuring the performance of the lead-acid battery and extending its lifespan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram showing the separation of the cover plate and the pool tank according to the present invention; Figure 3 This is a three-dimensional schematic diagram showing the positional relationship between the exhaust unit and the cover plate of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the circular tube and positioning block of the present invention; Figure 5 This is a three-dimensional schematic diagram of the acid addition rate limiting unit of the present invention; Figure 6 This is a schematic diagram showing the connection between the exhaust unit and the acid addition speed limiting mechanism of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a schematic diagram showing the misalignment of the first sliding hole and the second sliding hole in this invention; Figure 9 This is a schematic diagram of the top cross-section of the liquid inlet and the floating tube of the present invention.

[0020] In the diagram: 1. Battery body; 11. Tank; 12. Positive plate; 13. Negative plate; 14. Separator; 15. Terminal; 16. Cover plate; 2. Venting mechanism; 21. Exhaust unit; 2101. Positioning cylinder; 2102. Round tube; 2103. Square tube; 2104. Rotating rod; 2105. Rotating plate; 2106. One-way valve; 2107. Turbulence channel; 2108. Slide groove; 2109. Abutment block; 2110. Inner layer; 2111. Outer layer; 2112. First spring; 2113. Second spring; 2114. Guide block; 2 115. Guide groove; 22. Acid addition speed limiting unit; 2201. Elastic strip; 2202. Metal block; 2203. Positioning rod; 2204. Copper cover; 3. Acid addition level limiting mechanism; 301. Adding nozzle; 302. Floating tube; 303. Connecting rod; 304. Limiting ring; 305. Floating plate; 306. First sliding hole; 307. Second sliding hole; 308. Sealing plate; 309. Placement hole; 310. Round rod; 311. Torsion spring; 312. Overflow hole; 313. Overflow tube; 314. Sealing cover; 315. Knob. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figures 1-9 This invention provides a technical solution: a glass fiber reinforced lead-acid battery plate permeable structure, including a battery body 1. The battery body 1 includes a tank 11, a positive electrode plate 12, a negative electrode plate 13, a separator 14, terminals 15, and a cover plate 16. The cover plate 16 is fixedly connected to the top of the tank 11 by screws. The positive electrode plate 12 and the negative electrode plate 13 are placed in the inner cavity of the tank 11, and the positive electrode plate 12 and the negative electrode plate 13 are separated by the separator 14. The positive electrode plate 12 and the negative electrode plate 13 are respectively connected to the corresponding terminals 15. The working principle of the lead-acid battery is as follows: The existing technology will not be elaborated here. The separator 14 is made of glass fiber material with a porosity of up to 80%-90%. During the acid addition process, the acid reacts with the electrode to generate gas. The high porosity allows these gases to be discharged quickly, avoiding local pressure accumulation. The well-permeable separator 14 can promote the uniform flow of electrolyte between the electrode plates and reduce the ion concentration gradient. The permeability of the glass fiber separator 14 effectively inhibits dendrite growth and reduces the probability of short circuit by balancing the ion distribution. A venting mechanism 2 is provided at the bottom of the cover plate 16. The ventilation mechanism 2 includes an exhaust unit 21, which is located at the bottom of the cover plate 16 and is used to exhaust the gas generated after adding acid. The ventilation mechanism 2 also includes an acid addition speed limiting unit 22, which is located inside the exhaust unit 21. The acid addition speed limiting unit 22 works in conjunction with the exhaust unit 21 and is used to indicate when the acid addition speed is too fast. The inner wall of the cover plate 16 is provided with an acid level limiting mechanism 3. The acid level limiting mechanism 3 is used in conjunction with the exhaust unit 21 to limit the acid level.

[0023] As a further definition of the ventilation mechanism 2 of the present invention, the exhaust unit 21 includes a positioning cylinder 2101 fixedly connected to the inner wall of the cover plate 16. A round tube 2102 is slidably connected to the bottom of the positioning cylinder 2101, and a square tube 2103 is fixedly connected to the bottom of the round tube 2102. Two rotating rods 2104 are rotatably connected to the inner wall of the square tube 2103 via bearings. A rotating plate 2105 is fixedly connected to the surface of each of the two rotating rods 2104. The opposite sides of the upper ends of the two rotating plates 2105 are in contact with each other. The top of the positioning cylinder 2101 extends to the top of the cover plate 16 and is fixedly connected to a one-way valve 2106. Turbulence grooves 2107 are formed on the surface of each of the two rotating plates 2105. Made of perfluoroalkoxyalkanes, which are resistant to strong acids, strong alkalis, strong oxidants, and organic solvents, ensuring long-term use in acid solutions without corrosion. Their smooth surface leaves no liquid residue and does not adsorb acid, preventing changes in acid concentration or the introduction of impurities due to adsorption, thus ensuring acid purity. The exhaust unit 21 allows for timely removal of gases generated after acid addition. During exhaust, the two rotating plates 2105 are flipped, causing one end of the plate with the turbulence groove 2107 to move within the acid solution, creating vibrations and accelerating gas removal, thereby improving exhaust efficiency and extending battery life.

[0024] The inner side of the square tube 2103 is provided with a sliding groove 2108. The inner cavity of the sliding groove 2108 is slidably connected to a stop block 2109. One side of the stop block 2109 contacts one side of the rotating plate 2105. The stop block 2109 includes an inner layer 2110 and an outer layer 2111. The inner layer 2110 is made of glass fiber material, and the outer layer 2111 is made of silicone material. By setting the sliding groove 2108 and the stop block 2109 in cooperation, the stop block 2109 can be stably guided. The close contact between the stop block 2109 and the rotating plate 2105 can achieve dynamic sealing of the inner cavity of the square tube 2103 when the rotating plate 2105 is rotating, preventing gas from escaping from the outside of the two rotating plates 2105. The inner layer 2110 is made of glass fiber material, which can reduce the weight of the stop block 2109. The outer layer 2111 is made of silicone material, which can increase the sealing between the stop block 2109 and the rotating plate 2105.

[0025] Two first springs 2112 are fixedly connected to the inner wall of each chute 2108. One end of each first spring 2112 is fixedly connected to one side of the abutment 2109. By setting the first springs 2112, the movement distance of the abutment 2109 in the chute 2108 can be elastically adjusted, so that the abutment 2109 and the rotating plate 2105 are always tightly fitted. When there is no gas pushing between the two rotating plates 2105, the reaction force of the first springs 2112 can push the two rotating plates 2105 to refit, thereby re-sealing the square tube 2103.

[0026] A second spring 2113 is fixedly connected to the inner wall of the positioning cylinder 2101. The bottom end of the second spring 2113 is fixedly connected to the top of the round tube 2102. Two guide blocks 2114 are fixedly connected to the surface of the round tube 2102. Two guide grooves 2115 are opened on the inner wall of the positioning cylinder 2101. The surface of the guide block 2114 is slidably connected to the inner cavity of the guide groove 2115. By setting the second spring 2113, guide block 2114 and guide groove 2115 to work together, the second spring 2113 can realize the elastic adjustment of the displacement distance of the round tube 2102 in the inner cavity of the positioning cylinder 2101. And by the interlocking and sliding of the guide groove 2115 and guide block 2114, the stability of the round tube 2102 when moving is improved.

[0027] The specific implementation of this embodiment is as follows: After the user injects acid into the tank 11, the acid level limiting mechanism 3 is used to precisely control the acid level. After the acid injection is completed, the turbulence tank 2107 is located in the acid. During the acid injection process and during the static process, the generated gas flows between the two rotating plates 2105 and pushes the contact ends of the two rotating plates 2105 apart. The two rotating plates 2105 are rotated and supported by the rotating rod 2104. When the rotating plates 2105 rotate, they drive the turbulence tank 2107 to swing in the acid. When the acid flows through the turbulence tank 2107, it generates turbulence, which causes the acid to oscillate and accelerates the discharge of gas from the acid. When the rotating plate 2105 rotates, it pushes the push block 2109, which compresses the first spring 2112 and slides in the inner cavity of the slide groove 2108. The discharged gas passes through the square tube 2103, the round tube 2102, and the positioning cylinder 2101, and finally exits through the one-way valve 2106. The elastic coefficient of the first spring 2112 is a specific design coefficient and will not affect the discharge of gas at normal pressure.

[0028] Example 2: Please refer to Figures 1-9 The present invention provides a technical solution: a glass fiber reinforced lead-acid battery plate permeable structure, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0029] As a further limitation of the ventilating mechanism 2 of the present invention, the acid addition speed limiting unit 22 includes two elastic strips 2201. A plurality of metal blocks 2202 are fixedly connected to one side of the elastic strips 2201. A positioning rod 2203 is fixedly connected to the inner side of the square tube 2103. A copper cover 2204 is fixedly connected to one end of the positioning rod 2203. The metal blocks 2202 and the copper cover 2204 are used in conjunction. By setting the acid addition speed limiting unit 22, the acid addition speed can be limited, avoiding excessively fast acid addition speed, which would aggravate the internal chemical reaction, cause electrolyte splashing, thereby increasing the risk factor and reducing the battery life.

[0030] The specific implementation of this embodiment is as follows: When the user adds acid too quickly, a violent chemical reaction occurs inside the battery, resulting in the discharge of a large amount of gas with unstable pressure. When the gas with unstable pressure is discharged, it pushes the rotating plate 2105. With the reaction force of the first spring 2112, it drives the elastic strip 2201 to reciprocate and swing at an abnormal frequency. The swing of the elastic strip 2201 drives the metal block 2202 to swing, causing the metal block 2202 to strike the corresponding copper cover 2204. The copper cover 2204 is suspended and supported by the positioning rod 2203, which helps to increase the volume of the copper cover 2204 after being struck by the metal block 2202. When irregular and rapid knocking sounds occur, the user should slow down the acid injection speed to limit the acid addition speed. The elastic strip 2201 is made of stainless steel.

[0031] Example 3: Please refer to Figures 1-9 The present invention provides a technical solution: a glass fiber reinforced lead-acid battery plate permeable structure, and the present invention makes corresponding improvements to the technical problems mentioned in the background art.

[0032] As a further definition of the acid level limiting mechanism 3 of the present invention, the acid level limiting mechanism 3 includes a filling nozzle 301, which is fixedly connected to the top of the cover plate 16. A floating tube 302 is slidably connected to the inner cavity of the filling nozzle 301. The bottom end of the floating tube 302 extends to the bottom of the cover plate 16. A connecting rod 303 is fixedly connected to the surface of the floating tube 302. One end of the connecting rod 303 is fixedly connected to the surface of the circular tube 2102. A limiting ring 304 is fixedly connected to the top of the floating tube 302. The bottom of the limiting ring 304 contacts the top of the filling nozzle 301. Floating plates 305 are fixedly connected to the surfaces of both rotating plates 2105. The float plate 305 is made of foamed lead material, which is prepared through a special process and has the characteristics of low density and high specific surface area. This allows the float plate 305 to float naturally in acid. A dense oxide layer is added to the surface of the foamed lead, which can effectively resist the corrosion of sulfuric acid electrolyte and extend the service life of the float plate 305. By setting an acid level limiting mechanism 3, the acid level can be monitored through the contact of the float plate 305 with the acid. This causes the float tube 302 to move upward. Users can know that the acid level has been filled to the correct level by observing the upward movement of the float tube 302, thus avoiding situations where the level is too high or too low, thereby improving the battery's service life.

[0033] The inner wall of the filling nozzle 301 is provided with a first sliding hole 306, and the inner wall of the floating tube 302 is provided with a second sliding hole 307. The inner cavities of the first sliding hole 306 and the second sliding hole 307 are slidably connected to a sealing plate 308. By setting the first sliding hole 306, the second sliding hole 307 and the sealing plate 308, when the liquid level reaches the highest position of the standard liquid level, the first sliding hole 306 and the second sliding hole 307 are aligned, and the sealing plate 308 is embedded in the inner cavity of the second sliding hole 307 through the first sliding hole 306, thereby achieving automatic sealing of the inner cavity of the floating tube 302 and avoiding the injection of too much acid.

[0034] The inner wall of the filling nozzle 301 has a placement hole 309. A round rod 310 is rotatably connected to the inner cavity of the placement hole 309. The bottom end of the round rod 310 is rotatably connected to the inner wall of the first sliding hole 306. The top end of the round rod 310 extends through to the top of the filling nozzle 301 and is fixedly connected to a knob 315. The surface of the round rod 310 is fixedly connected to the inner wall of the sealing plate 308. A torsion spring 311 is slidably sleeved on the surface of the round rod 310. One end of the torsion spring 311 is fixedly connected to the top of the sealing plate 308, and the other end of the torsion spring 311 is connected to the placement hole 309. The inner wall is fixedly connected; by setting the placement hole 309, the round rod 310 and the torsion spring 311, the placement hole 309 provides sufficient space for the installation of the round rod 310 and the torsion spring 311. Before adding acid, the round rod 310 is rotated by turning the knob 315. The rotation of the round rod 310 causes the sealing plate 308 to rotate, and at the same time, the torsion spring 311 is deformed. When the first sliding hole 306 is aligned with the second sliding hole 307, the reaction force of the torsion spring 311 causes the round rod 310 and the sealing plate 308 to return to their original rotation.

[0035] Both the filling nozzle 301 and the floating tube 302 have overflow holes 312 on their surfaces. The filling nozzle 301 is fixedly connected to an overflow tube 313, which is connected to the overflow hole 312. A sealing cap 314 is fitted onto the surface of the filling nozzle 301. The sealing cap 314 is fixedly connected to the top of the cover plate 16 by screws. The inner top of the sealing cap 314 adopts a conventional sealing structure and is in close contact with the top of the floating tube 302. By setting the overflow hole 312 and the overflow tube 313, the excess acid injected by the user can be discharged after the floating tube 302 is sealed by the sealing plate 308. Before adding acid, the user can use an external container to connect to the overflow tube 313 to collect the excess acid. The sealing cap 314 can achieve permanent sealing of the ports of the filling nozzle 301 and the floating tube 302.

[0036] The specific implementation method of this embodiment is as follows: Before adding acid, the user removes the screw that limits the sealing cover 314, removes the sealing cover 314, exposing the floating tube 302, and the user rotates the knob 315. The rotation of the knob 315 drives the round rod 310 to rotate, and the rotation of the round rod 310 drives the sealing plate 308 to rotate. At the same time, the torsion spring 311 deforms. The sealing plate 308 rotates through the second sliding hole 307 and the first sliding hole 306 to the outside of the liquid filling nozzle 301. The user then presses down on the floating tube 302, causing the limiting ring 304 to contact the top of the filling nozzle 301. At this time, the second sliding hole 307 moves down and is misaligned with the first sliding hole 306. The user releases the knob 315, and then begins to add acid. When the acid level contacts the bottom of the float plate 305, it generates an upward thrust on the float plate 305. The upward movement of the float plate 305 pushes the rotating plate 2105, the rotating rod 2104, and the square tube 2103 upward. The upward movement of 03 pushes the circular tube 2102 upward, which in turn pushes the connecting rod 303 upward, which in turn pushes the floating tube 302 upward. The upward movement of the floating tube 302 causes the second sliding hole 307 to move upward. When the first sliding hole 306 aligns with the second sliding hole 307, the reaction force of the torsion spring 311 causes the circular rod 310 and the closing plate 308 to rotate and reset. The closing plate 308 passes through the first sliding hole 306 and the second sliding hole 307, thus achieving [the desired movement]. With the floating tube 302 blocked, the inner height of the second sliding hole 307 is greater than the inner height of the first sliding hole 306. At this time, the acid that the user has not yet retrieved enters the overflow tube 313 through the overflow hole 312 and is introduced into the container prepared by the user in advance, thereby limiting the acid level and timely sealing of the filling end to prevent the entry of excess air and impurities. After the filling is completed, the filling nozzle 301 and the floating tube 302 are sealed again by the sealing cap 314.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A glass fiber reinforced lead-acid battery plate ventilated structure, comprising a battery body (1), the battery body (1) comprising a tank (11), a positive electrode plate (12), a negative electrode plate (13), a separator (14), terminals (15), and a cover plate (16), the cover plate (16) being fixedly connected to the top of the tank (11) by screws, the positive electrode plate (12) and the negative electrode plate (13) being placed in the inner cavity of the tank (11), the positive electrode plate (12) and the negative electrode plate (13) being separated by the separator (14), the positive electrode plate (12) and the negative electrode plate (13) being respectively connected to the corresponding terminals (15), characterized in that: The bottom of the cover plate (16) is provided with a ventilation mechanism (2); The ventilation mechanism (2) includes an exhaust unit (21), which is located at the bottom of the cover plate (16) and is used to exhaust the gas generated after adding acid. The ventilation mechanism (2) further includes an acid addition speed limiting unit (22), which is located inside the exhaust unit (21). The acid addition speed limiting unit (22) works in conjunction with the exhaust unit (21) and is used to indicate when the acid addition speed is too fast. The inner wall of the cover plate (16) is provided with an acid level limiting mechanism (3), which is used in conjunction with the exhaust unit (21) to limit the acid level.

2. The glass fiber reinforced lead-acid battery plate permeable structure according to claim 1, characterized in that: The exhaust unit (21) includes a positioning cylinder (2101) fixedly connected to the inner wall of the cover plate (16). A round tube (2102) is slidably connected to the bottom of the positioning cylinder (2101). A square tube (2103) is fixedly connected to the bottom of the round tube (2102). Two rotating rods (2104) are rotatably connected to the inner wall of the square tube (2103) through bearings. A rotating plate (2105) is fixedly connected to the surface of each of the two rotating rods (2104). The opposite sides of the upper ends of the two rotating plates (2105) are in contact with each other. The top of the positioning cylinder (2101) extends to the top of the cover plate (16) and is fixedly connected to a one-way valve (2106). Turbulent grooves (2107) are opened on the surface of each of the two rotating plates (2105). The rotating plates (2105) are made of perfluoroalkoxyalkane.

3. The glass fiber reinforced lead-acid battery plate permeable structure according to claim 2, characterized in that: The inner side of the square tube (2103) is provided with a sliding groove (2108), and a stop block (2109) is slidably connected to the inner cavity of the sliding groove (2108). One side of the stop block (2109) is in contact with one side of the rotating plate (2105). The stop block (2109) includes an inner layer (2110) and an outer layer (2111). The inner layer (2110) is made of glass fiber material, and the outer layer (2111) is made of silicone material.

4. The glass fiber reinforced lead-acid battery plate permeable structure according to claim 3, characterized in that: Two first springs (2112) are fixedly connected to the inner wall of each of the grooves (2108), and one end of the two first springs (2112) is fixedly connected to one side of the abutment (2109).

5. The glass fiber reinforced lead-acid battery electrode permeable structure according to claim 2, characterized in that: The inner wall of the positioning cylinder (2101) is fixedly connected to a second spring (2113). The bottom end of the second spring (2113) is fixedly connected to the top of the round tube (2102). Two guide blocks (2114) are fixedly connected to the surface of the round tube (2102). Two guide grooves (2115) are opened on the inner wall of the positioning cylinder (2101). The surface of the guide block (2114) is slidably connected to the inner cavity of the guide groove (2115).

6. The glass fiber reinforced lead-acid battery electrode permeable structure according to claim 2, characterized in that: The acid addition speed limiting unit (22) includes two elastic strips (2201). Several metal blocks (2202) are fixedly connected to one side of the elastic strips (2201). A positioning rod (2203) is fixedly connected to the inner side of the square tube (2103). A copper cover (2204) is fixedly connected to one end of the positioning rod (2203). The metal blocks (2202) and the copper cover (2204) are used together.

7. The glass fiber reinforced lead-acid battery electrode permeable structure according to claim 2, characterized in that: The acid level limiting mechanism (3) includes a filling nozzle (301), which is fixedly connected to the top of the cover plate (16). A floating tube (302) is slidably connected to the inner cavity of the filling nozzle (301). The bottom end of the floating tube (302) extends to the bottom of the cover plate (16). A connecting rod (303) is fixedly connected to the surface of the floating tube (302). One end of the connecting rod (303) is fixedly connected to the surface of the round tube (2102). A limiting ring (304) is fixedly connected to the top of the floating tube (302). The bottom of the limiting ring (304) contacts the top of the filling nozzle (301). Floating plates (305) are fixedly connected to the surfaces of the two rotating plates (2105). The floating plates (305) are made of foam lead material.

8. The glass fiber reinforced lead-acid battery plate permeable structure according to claim 7, characterized in that: The inner wall of the liquid inlet (301) is provided with a first sliding hole (306), and the inner wall of the floating tube (302) is provided with a second sliding hole (307). The inner cavities of the first sliding hole (306) and the second sliding hole (307) are slidably connected to a sealing plate (308).

9. The glass fiber reinforced lead-acid battery electrode permeable structure according to claim 8, characterized in that: The inner wall of the liquid inlet (301) is provided with a placement hole (309). A round rod (310) is rotatably connected to the inner cavity of the placement hole (309). The bottom end of the round rod (310) is rotatably connected to the inner wall of the first sliding hole (306). The surface of the round rod (310) is fixedly connected to the inner wall of the sealing plate (308). A torsion spring (311) is slidably sleeved on the surface of the round rod (310). One end of the torsion spring (311) is fixedly connected to the top of the sealing plate (308), and the other end of the torsion spring (311) is fixedly connected to the inner wall of the placement hole (309).

10. The glass fiber reinforced lead-acid battery electrode permeable structure according to claim 7, characterized in that: Both the filling nozzle (301) and the floating tube (302) have overflow holes (312) on their surfaces. The filling nozzle (301) is fixedly connected to an overflow tube (313), which is connected to the overflow hole (312). The filling nozzle (301) is fitted with a sealing cap (314), which is fixedly connected to the top of the cover plate (16) by screws. The inner top of the sealing cap (314) adopts a conventional sealing structure and is in close contact with the top of the floating tube (302).

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