Plate-type traction lead-acid storage battery with protection structure

Abstract

The invention discloses a plate-type traction lead-acid storage battery with a protection structure, and relates to the technical field of batteries, a cavity is arranged in the inner and outer side end walls of the periphery of a battery main body, and a first communication box communicated with the cavity is arranged at the top of a battery cover, so that when the inner side end wall is extruded due to gas expansion in the battery main body, the inner side end wall is blocked, and the inner side end wall is blocked; liquid in a cavity can be squeezed into a first communication box to push a push block, by means of meshing of a rack rod and a gear ring, a disc is driven to rotate, a groove is aligned with a through hole formed in the disc, exhaust operation is conducted, a second spring is arranged in the first communication box to conduct springback reset on the push block, and the liquid in the cavity can be squeezed into the first communication box to push the push block. The through holes in the groove and the disc are reset and closed after exhausting is completed, so that external impurities are prevented from entering the battery main body to pollute the electrolyte, the electrolyte is effectively prevented from leaking due to side turning and dumping, and the running stability of the battery is improved to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of batteries, and in particular to a plate-type traction lead-acid storage battery with a protective structure. Background Art

[0002] Plate-type lead-acid traction battery is a power supply component used in vehicles or other power machinery as a traction power supply. Its interior is mainly composed of plates, partitions and terminals, and is widely used in the prior art.

[0003] When lead-acid batteries are actually used, due to the influence of the working principle, a large amount of gas will be generated inside the battery. The generation of these gases will not only affect the performance of the battery, but also cause the internal pressure of the battery to increase. In severe cases, it will cause the battery to swell. To avoid the above situation, an exhaust hole is usually opened on the top of the lead-acid battery. Although the existence of the exhaust hole can make the gas inside the battery be discharged to the outside in time, it also affects the overall sealing of the lead-acid battery. Impurities in the external environment can easily enter the battery through the exhaust hole, causing pollution to the electrolyte inside the battery, which is not conducive to the stable use of traction lead-acid batteries in harsh environments. In addition, when the battery is tipped over, the electrolyte inside the battery is easy to leak out through the exhaust hole, causing pollution to the surrounding environment, posing a certain degree of safety hazard.

[0004] Therefore, a plate-type lead-acid traction battery with a protective structure is proposed to solve some problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the exhaust hole of the plate-type traction lead-acid battery is directly connected to the inside of the battery, which makes the electrolyte inside the battery easily contaminated and leaked, and to propose a plate-type traction lead-acid battery with a protective structure.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions: A plate-type traction lead-acid storage battery with a protective structure comprises a battery body, the top of the battery body is fixedly covered with a battery cover, and the top of the battery cover is fixedly inlaid with two terminals, a first filling port connected to the inside of the battery body is fixedly installed on the top of the battery cover, and a first cap is screwed on the first filling port through a thread, the end walls around the battery body are arranged as a double-layer structure, a cavity is formed in the double-layer end walls around the battery body, and the cavity is filled with liquid, a first communication box connected to the cavity is fixedly installed on the top of the battery cover, and a groove recessed downward is arranged at the middle position of the top of the first communication box, a gear ring arranged in the first communication box is rotatably sleeved on the outer side of the groove, a disc fixedly connected to the gear ring is rotatably embedded on the bottom end wall of the first communication box, symmetrical through holes are opened on the bottom end wall of the groove and the disc, a push block is slidably installed in the first communication box, a second spring for elastically supporting the push block is fixedly installed in the first communication box, and a rack rod meshing with the gear ring is fixedly installed on the push block.

[0007] Preferably, a one-way valve component is arranged above the groove, and the one-way valve component includes a valve cover threadedly screwed on the top of the groove, a valve block is slidably installed in the valve cover, a first spring elastically supported above the valve block is installed in the valve cover, a plurality of air holes are opened around the end wall of the valve cover, and the air holes are connected to the holes on the inner end wall of the valve cover arranged below the top of the valve block.

[0008] Preferably, the length of the left and right end walls of the battery body is set to 3 times the length of its front and rear end walls, and reinforcing ribs are fixedly connected to the cavity formed in the double-layer end walls on the front and rear sides of the battery body, and the reinforcing ribs are set to a grid-shaped structure, and the bottoms of the cavities formed in the double-layer end walls on the left and right sides of the battery body are connected to each other.

[0009] Preferably, the liquid filled in the cavity is insulating heat-conducting oil, and a striking colorant is added to the insulating heat-conducting oil, and the striking colorant is set to yellow. A second connecting box connected to the cavity is fixedly installed on the top of the battery cover, and a second filling port connected to the interior of the second connecting box is fixedly installed in the middle position of the top, and a second cap is screwed on the inner thread of the second filling port.

[0010] Preferably, a guide plate corresponding to the second filling port is fixedly installed in the second connecting box, a micro motor is fixedly installed on the top of the second cap, and a pump blade arranged below the second cap is fixedly installed on the driving shaft of the micro motor, and the outer size of the pump blade is adapted to the size of the guide plate.

[0011] Preferably, an outer frame is sleeved on the outer side of the battery body, and a U-shaped frame wrapped around the front, rear and bottom end walls of the battery body is arranged inside the outer frame, horizontal outward cross bars are fixedly installed on the tops of the front and rear ends of the U-shaped frame, and a first cross beam arranged on the outside of the cross bar in the corresponding direction is transversely fixed on the front and rear sides of the top of the outer frame, and a plurality of cams are rotatably installed on the top of the first cross beam, and the end of the cam is supported on the bottom of the cross bar in the corresponding direction, a worm gear coaxially arranged with the cam is rotatably installed in the first cross beam, and the outer sides of the plurality of worm gears located on the same side are meshedly connected with a transversely arranged worm, a longitudinally arranged transmission rod is rotatably installed in the outer frame, and mutually meshing bevel teeth are fixedly installed at the ends of the worm and the transmission rod, a servo motor is fixedly installed on the battery body, and the drive shaft of the servo motor is transmission-connected to the worm, and a second cross beam arranged directly below the cross bar in the corresponding direction is transversely fixed on the front and rear sides of the bottom of the outer frame.

[0012] Preferably, pressure plates pressing on top of the cam are fixedly mounted on both the front and rear sides of the top of the battery body.

[0013] Preferably, a plurality of evenly distributed third springs are fixedly mounted on the tops of the two front and rear second cross beams.

[0014] Preferably, a limiting plate covering the battery cover is rotatably installed at the top rear of the battery body, and a first torsion spring is installed at the rotational connection between the limiting plate and the battery body, a sleeve corresponding to the two terminals is fixedly installed on the limiting plate, and a clip adapted to the terminals is fixedly installed in the sleeve, the clip is arranged to be an Ω-shaped structure, and a wire electrically connected to the clip is fixedly installed on the outside of the sleeve.

[0015] Preferably, vertically arranged side panels are rotatably installed on the left and right sides of the outer frame, and a second torsion spring is installed at the rotating connection between the side panel and the outer frame. A baffle for supporting the side panel is fixedly installed on the U-shaped frame, and the bottom and side panels of the U-shaped frame are made of flame-retardant material.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, by setting the end walls around the battery body as a double-layer structure, the protective effect of the end walls on the internal plates and electrolyte of the battery body is improved. By setting the cavity in the inner and outer end walls around the battery body, and providing a first connecting box connected to the cavity on the top of the battery cover, when the gas in the battery body expands and squeezes the inner end wall, the liquid in the cavity can be squeezed into the first connecting box to push the push block. With the meshing of the rack rod and the gear ring, the disc is driven to rotate, and the groove and the through hole on the disc are aligned to perform the exhaust operation. By setting the second spring in the first connecting box, the push block is rebounded and reset, so that the groove and the through hole on the disc are reset and closed after the exhaust is completed, which is conducive to preventing external impurities from entering the battery body to contaminate the electrolyte, and effectively preventing the electrolyte from leaking due to overturning and tipping, and to a certain extent improving the operating stability of the battery. 2. In the present invention, by adding insulating heat-conducting oil into the cavity, it is beneficial to ensure the thermal conductivity of the double-layer end wall around the battery body, and ensure the timely and stable discharge of internal heat when the lead-acid battery is activated at high power. At the same time, by adding a yellow eye-catching colorant to the insulating heat-conducting oil, the insulating heat-conducting oil is presented in an eye-catching yellow color. When the outer end wall of the battery body is broken, the leakage of the yellow insulating heat-conducting oil is eye-catching, which can timely remind relevant staff to carry out maintenance; 3. In the present invention, by connecting the second connecting box and the second filling port, the staff can add insulating heat-conducting oil into the cavity through the second filling port, which is convenient to operate. At the same time, by installing the guide plate corresponding to the second filling port in the second connecting box, and fixing the pump blade adapted to the guide plate on the driving shaft of the micro motor, the micro motor can drive the pump blade to rotate at high speed between the guide plates after being powered on, thereby disturbing the circulating flow of the insulating heat-conducting oil in the cavity. By actively driving the circulating flow of the insulating heat-conducting oil, the uniformity of heat dissipation from the battery body to the outside through the insulating heat-conducting oil is improved, which is beneficial to improving the heat dissipation protection effect of the lead-acid battery; 4. In the present invention, by arranging the outer frame on the outside of the battery body, not only can the battery body be protected by a frame, but also sufficient heat dissipation space can be provided when multiple lead-acid batteries are used side by side. At the same time, by arranging the end of the cam below the horizontal bar to lift it, and arranging the second horizontal beam fixed to the bottom of the outer frame just below the horizontal bar, when a dangerous situation occurs, the cam can be controlled to rotate, and the lifting of the horizontal bar by the end of the cam can be released, so that the U-shaped frame carrying the battery body sinks to the bottom of the outer frame, and the side plates covering the top of the battery cover are turned over on both sides, so that the lead-acid battery in danger can be fully sunk and isolated, and the speed of the danger spreading to both sides can be reduced to a certain extent, so as to provide enough time for the rescue and treatment of the staff; 5. In the present invention, by setting a pressure plate to press on the top of the cam, the upper part of the cam is restricted, so that the front and rear forces of the cam end are balanced when lifting the cross bar, which is conducive to ensuring the stability of the battery body installed in the outer frame under normal circumstances. At the same time, by evenly distributing the third springs on the tops of the front and rear second cross beams, with the elastic buffering of the third springs, the cross bar can be prevented from directly colliding with the second cross beam during the sinking process of the battery body, which is conducive to improving the stability of the battery body when it is sunk and isolated; 6. In the present invention, by arranging the sleeve on the outside of the terminal, under normal circumstances, the terminal can be protected and the probability of damage to the terminal when viewed from above can be reduced. By tightly inserting the terminal into the bottom of the clamp, when the battery body sinks due to a dangerous situation, the terminal and the clamp can be quickly and smoothly separated, automatically interrupting the power supply to the lead-acid battery in the dangerous situation, which is beneficial to improving the safety of the lead-acid battery in actual use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 A perspective view of the present invention; Figure 2 It is a three-dimensional diagram of the reinforcing rib of the present invention after being disassembled from the cavity; Figure 3 It is a three-dimensional diagram of the various structures on the battery cover of the present invention after being disassembled; Figure 4 It is a three-dimensional diagram of the structure on the outer frame of the present invention; Figure 5 is a stereoscopic diagram of the cam, worm wheel and worm of the present invention; Figure 6 A three-dimensional diagram of the card clip of the present invention after being disassembled from the sleeve; Figure 7 For the present invention Figure 1 A top view of the structure in the middle; Figure 8 For the present invention Figure 7 Sectional view at AA in the middle; Fig. 9 For the present invention Figure 7 Cross-section at the middle BB; Fig.10 For the present invention Figure 7 Sectional view at CC; Fig.11 For the present invention Figure 7 Sectional view at DD in the middle; Fig.12 For the present invention Figure 7Sectional view at EE in the middle; Fig.13 For the present invention Figure 1 A top view of the structure in section; Fig.14 A three-dimensional diagram of a plurality of batteries of the present invention when used in a group side by side; Fig.15 For the present invention Fig.14 A three-dimensional image of a single battery when it is sunk and isolated.

[0018] Serial number in the picture: 1. Battery body; 101. Battery cover; 102. Terminal; 103. First filling port; 104. First cap; 2. Cavity; 201. First communication box; 202. Groove; 203. Valve cover; 204. Valve block; 205. First spring; 206. Air hole; 207. Gear ring; 208. Disc; 209. Push block; 210. Second spring; 211. Rack rod; 212. Reinforcement rib; 3. Second communication box; 301. Second filling port; 302. Second cover cap; 303. Guide plate; 304. Micro motor; 305. Pump blade; 4. outer frame; 401. U-shaped frame; 402. horizontal bar; 403. first horizontal beam; 404. cam; 405. worm wheel; 406. worm; 407. transmission rod; 408. bevel gear; 409. servo motor; 410. pressure plate; 411. second horizontal beam; 412. third spring; 5. Restriction plate; 501. First torsion spring; 502. Sleeve; 503. Clip; 504. Wire; 6. Side plate; 601. Second torsion spring; 602. Baffle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Embodiment: This embodiment provides a plate-type traction lead-acid battery with a protective structure, see Figure 1 - Fig.15Specifically, it includes a battery body 1, the top of the battery body 1 is fixedly covered with a battery cover 101, and the top of the battery cover 101 is fixedly inlaid with two terminals 102, the top of the battery cover 101 is fixedly installed with a first filling port 103 connected to the inside of the battery body 1, and the first filling port 103 is internally screwed with a first cap 104, the end wall around the battery body 1 is set to a double-layer structure, the double-layer end wall around the battery body 1 forms a cavity 2, and the cavity 2 is filled with liquid, the top of the battery cover 101 is fixedly installed with a first communication box 201 connected to the cavity 2, and the first communication box 20 1 is provided with a downwardly concave groove 202 at the middle position of the top, a gear ring 207 provided in the first communication box 201 is rotatably sleeved on the outer side of the groove 202, a disc 208 fixedly connected with the gear ring 207 is rotatably embedded on the bottom end wall of the first communication box 201, symmetrical through holes are provided on the bottom end wall of the groove 202 and the disc 208, a push block 209 is slidably installed in the first communication box 201, a second spring 210 for elastically supporting the push block 209 is fixedly installed in the first communication box 201, and a rack rod 211 meshing with the gear ring 207 is fixedly installed on the push block 209.

[0021] When the lead-acid battery is actually used, the staff installs it on a traction vehicle as an energy supply unit. By setting the end walls around the battery body 1 to a double-layer structure, the protective effect of the end walls on the plates and electrolyte in the battery body 1 is improved. When the battery body 1 is hit from the outside, the double-layer structure of the end wall of the battery body 1 makes it difficult to be completely pierced. Even if the outer end wall is damaged, the inner end wall can still limit the leakage of the electrolyte, which is beneficial to improving the safety of the lead-acid battery in actual use. In daily use, the first cap 104 can be rotated to unscrew it, and the electrolyte can be supplemented into the battery body 1 through the first filling port 103.

[0022] Under normal circumstances, during the use of the lead-acid battery, the through hole opened on the disc 208 is connected to the battery body 1, and the through hole opened on the bottom end wall of the groove 202 is in a misaligned state with the through hole opened on the disc 208, so that the fitting position of the bottom end wall of the groove 202 and the disc 208 does not constitute a connecting structure. When excessive gas is generated in the battery body 1 due to the operation of the lead-acid battery, the inner end wall of the double-layer end wall of the battery body 1 will be squeezed outward under the support of gas expansion. When the outer end wall remains unchanged, the space in the cavity 2 is reduced, so that the liquid filled in the cavity 2 is squeezed and enters the first communication box 201, accompanied by As the liquid is squeezed, the push block 209 overcomes the elastic support of the second spring 210 and moves. During the movement of the push block 209, the rack rod 211 is driven to move synchronously. With the engagement of the rack rod 211 and the gear ring 207, the gear ring 207 drives the disc 208 to rotate. During the rotation of the disc 208, the through hole opened on it is driven to rotate and gradually align with the through hole opened on the bottom end wall of the groove 202, forming an upper and lower connecting structure here. At this time, the excess gas inside the battery body 1 can be discharged outward through the overlapping and connected through holes on the bottom end wall of the groove 202 and the disc 208, thereby avoiding damage to the battery body 1 due to the expansion of gas that cannot be discharged in time.

[0023] After the excess gas is discharged, the inner end wall of the double-layer end wall of the battery body 1 is no longer squeezed and returns to its initial state, and the liquid in the cavity 2 no longer exerts squeezing and pushing on the push block 209. At this time, with the elastic reset of the second spring 210, the push block 209 is driven to reset and move, driving the rack rod 211 to move in the opposite direction, driving the gear ring 207 to drive the disc 208 to reset to its initial state, and the through hole opened on the disc 208 is no longer connected with the through hole opened on the bottom end wall of the groove 202, and this place is in a closed state again. In this case, even if the lead-acid battery is flipped and turned upside down, the electrolyte in the battery body 1 will not leak, so that even if the traction vehicle equipped with the lead-acid battery rolls over, the electrolyte will not leak, which is beneficial to improving the safety and stability of the lead-acid battery in actual use.

[0024] In the specific implementation process, Figure 3 and Fig. 9As shown, a one-way valve member is arranged above the groove 202, and the one-way valve member includes a valve cover 203 threadedly screwed on the groove 202, a valve block 204 is slidably installed in the valve cover 203, a first spring 205 elastically supported on the valve block 204 is installed in the valve cover 203, a plurality of air holes 206 are arranged around the end wall of the valve cover 203, and the air holes 206 are connected to the holes on the inner end wall of the valve cover 203 and are arranged below the top of the valve block 204. When the lead-acid battery is actually used, the through holes opened on the bottom end wall of the groove 202 and the disc 208 are relatively large in size. In order to prevent foreign impurities from entering the battery body 1 through the connected through holes when the through holes are aligned and opened, the one-way valve member is installed on the groove 202. Under normal circumstances, the first spring 205 elastically presses the valve block 204, so that the valve block 204 remains aligned with the air. The hole 206 is in a blocked state. In this state, foreign impurities cannot enter and accumulate in the through hole opened on the bottom end wall of the groove 202. When the disc 208 and the through hole opened on the bottom end wall of the groove 202 are aligned for exhaust, under the impact of the high-pressure airflow, the valve block 204 overcomes the elastic support of the first spring 205 and is pushed upward. The valve block 204 no longer blocks the air hole 206. The gas rushing out of the battery body 1 is discharged outward through the air hole 206. At this time, due to the airflow impact formed by the outward ejection of the airflow, foreign impurities cannot enter through the air hole 206 either, which is beneficial to ensure the stability of the internal part of the lead-acid battery body 1 in a high-dust working environment. The valve cover 203 is installed in the groove 202 by threaded connection, and the staff can flexibly disassemble and assemble the valve cover 203 according to the actual needs during use.

[0025] In the specific implementation process, Figure 2 As shown, the length of the left and right side end walls of the battery body 1 is set to 3 times the length of the front and rear side end walls thereof, and the cavity 2 formed in the double-layer end walls on the front and rear sides of the battery body 1 is fixedly connected with a reinforcing rib 212, and the reinforcing rib 212 is set to a grid-shaped structure, and the bottoms of the cavity 2 formed in the double-layer end walls on the left and right sides of the battery body 1 are connected to each other. When the lead-acid battery is actually used, the structural firmness of the double-layer end walls on the front and rear sides of the battery body 1 can be strengthened by fixing the reinforcing rib 212 in the cavity 2 formed in the double-layer end walls on the front and rear sides of the battery body 1. This can not only effectively improve the structural firmness of the battery body 1, but also concentrate the deformation of the inner end wall of the double-layer end wall structure of the battery body 1 due to gas expansion on the longer left and right sides. The inner end walls on the left and right sides of the battery body 1 are long in length, and the deformation range due to gas expansion is large, which is convenient for the cyclic triggering use of the device. If the shorter front and rear end walls are used as the triggering surface, when the gas expands excessively, the shorter front and rear inner end walls are prone to rupture and damage due to the small deformation amplitude.

[0026] In the specific implementation process, Figure 1 and Figure 3As shown, the liquid filled in the cavity 2 is insulating heat-conducting oil, and a striking colorant is added to the insulating heat-conducting oil, and the striking colorant is set to yellow. A second connecting box 3 connected to the cavity 2 is fixedly installed on the top of the battery cover 101, and a second filling port 301 connected to the interior of the second connecting box 3 is fixedly installed in the middle position of the top, and a second cap 302 is screwed on the inner thread of the second filling port 301. When the lead-acid battery is actually used, since the liquid filled in the cavity 2 is insulating heat-conducting oil, it is beneficial to ensure the heat conduction of the double-layer end wall around the battery body 1. Performance, to ensure the timely and stable discharge of internal heat when the lead-acid battery is enabled at high power. By adding a yellow eye-catching colorant to the insulating heat-conducting oil, the insulating heat-conducting oil appears in an eye-catching yellow color. When the outer end wall of the battery body 1 is broken, the leakage of the yellow insulating heat-conducting oil is eye-catching, and the relevant staff can be reminded of maintenance in time. During daily maintenance, the staff can rotate and unscrew the second cap 302, and add insulating heat-conducting oil to the cavity 2 through the connection between the second filling port 301 and the second connecting box 3.

[0027] In the specific implementation process, Figure 3 and Fig.13 As shown, a guide plate 303 corresponding to the second filling port 301 is fixedly installed in the second communication box 3, a micro motor 304 is fixedly installed on the top of the second cap 302, and a pump blade 305 arranged below the second cap 302 is fixedly installed on the driving shaft of the micro motor 304. The outer size of the pump blade 305 is adapted to the size of the guide plate 303. During the actual use of the lead-acid battery, when adding insulating heat-conducting oil, the staff can add the insulating heat-conducting oil to the second filling port 301. The outer size of the pump blade 305 is adapted to the inner size of the second filling port 301, which makes the second cap 302 with the pump blade 305 installed below It can be smoothly separated from the second filling port 301. When the second cover cap 302 is screwed into the second filling port 301, the pump blade 305 fixed on the driving shaft of the micro motor 304 is located between the guide plates 303 provided in the second connecting box 3 and immersed in the insulating heat-conducting oil. When the lead-acid battery is enabled, the micro motor 304 can be powered by an external power cord, so that the micro motor 304 drives the pump blade 305 to rotate at a high speed, disturbing the circulating flow of the insulating heat-conducting oil in the cavity 2. By actively driving the circulating flow of the insulating heat-conducting oil, the uniformity of the heat dissipation from the battery body 1 to the outside through the insulating heat-conducting oil is improved, which is beneficial to improving the heat dissipation protection effect of the lead-acid battery.

[0028] In the specific implementation process, Figure 1 , Figure 4 , Figure 5 and Figure 8As shown, the outer side of the battery body 1 is sleeved with an outer frame 4, and a U-shaped frame 401 wrapped around the front, rear and bottom end walls of the battery body 1 is arranged inside the outer frame 4, and horizontal outward cross bars 402 are fixedly installed on the tops of the front and rear ends of the U-shaped frame 401, and first cross beams 403 arranged on the outside of the cross bars 402 in the corresponding direction are transversely fixed on the front and rear sides of the top of the outer frame 4, and a plurality of cams 404 are rotatably installed on the top of the first cross beam 403, and the ends of the cams 404 are supported on the bottom of the cross bars 402 in the corresponding direction, and a plurality of cams 404 are rotatably installed in the first cross beam 403. A worm gear 405 is coaxially arranged with the cam 404, and the outer sides of multiple worm gears 405 located on the same side are meshedly connected with a laterally arranged worm 406. A longitudinally arranged transmission rod 407 is rotatably installed in the outer frame 4, and mutually meshing bevel teeth 408 are fixedly installed at the ends of the worm 406 and the transmission rod 407. A servo motor 409 is fixedly installed on the battery body 1, and the drive shaft of the servo motor 409 is transmission-connected with the worm 406. A second crossbeam 411 arranged directly below the cross bar 402 in the corresponding direction is laterally fixed on the front and rear sides of the bottom of the outer frame 4.

[0029] When the lead-acid battery is actually used, usually multiple lead-acid batteries are used together. The staff installs multiple lead-acid batteries side by side on the traction vehicle. When one of the lead-acid batteries is in a dangerous situation and needs to be isolated, the servo motor 409 installed on the outer frame 4 is powered on and started, driving the worm 406 to rotate. With the meshing of the bevel gear 408 and the transmission connection of the transmission rod 407, the front and rear worms 406 rotate synchronously. Then, with the meshing of the worm 406 and the worm wheel 405, the cam 404 is driven to rotate 90°. At this time, the cam 404 is converted from a longitudinal state to a transverse state. After rotating 90°, the end of the cam 404 is no longer at the bottom of the horizontal bar 402, and the end of the cam 404 no longer lifts the horizontal bar 402. Under the action of gravity, the U-shaped frame 401 , the cross bar 402 and the battery body 1 installed in the U-shaped frame 401 fall downward. Since the second cross beam 411 is arranged directly below the cross bar 402, when the battery body 1 falls below the outer frame 4, the second cross beam 411 lifts the cross bar 402, so that the battery body 1 is suspended below the outer frame 4, and is layered and isolated from the outer frame 4 in the surrounding lead-acid batteries. The dangerous situation may be spontaneous combustion, abnormal expansion, etc. The dangerous situation of the lead-acid battery is determined by the corresponding sensor. For example, when the risk of spontaneous combustion occurs, the battery body 1 that spontaneously combusts is sunk and isolated, which can reduce the speed at which the fire point spreads to the surrounding lead-acid batteries. The spontaneously combusting battery body 1 sinks and protrudes, making the fire point eye-catching, which is convenient for the staff to deal with dangerous situations such as fire extinguishing.

[0030] The existence of the outer frame 4 can prevent two adjacent battery bodies 1 from fitting closely together, which can not only provide sufficient heat dissipation space when the lead-acid battery is working, but also provide frame mode protection for the battery body 1 through the outer frame 4, which is beneficial to further improve the safety protection performance of the lead-acid battery.

[0031] In the specific implementation process, Figure 4 and Figure 8 As shown, pressure plates 410 pressing on the top of the cam 404 are fixedly installed on the front and rear sides of the top of the battery body 1. When the lead-acid battery is actually used, the pressure plate 410 is set to press on the top of the cam 404 to limit the top of the cam 404, so that the front and rear forces of the end of the cam 404 are balanced when lifting the horizontal bar 402, which is beneficial to ensure the stability of the battery body 1 installed in the outer frame 4 under normal circumstances.

[0032] In the specific implementation process, Figure 8 and Fig. 9 As shown, a plurality of evenly distributed third springs 412 are fixedly installed on the tops of the two front and rear second beams 411. When the lead-acid battery is actually used, the third springs 412 are evenly dispersedly installed on the tops of the two front and rear second beams 411. During the sinking process of the battery body 1, the cross bar 402 will fall onto the third spring 412. With the help of the elastic buffer of the third spring 412, a direct collision between the cross bar 402 and the second beam 411 is avoided, which is beneficial to improving the stability of the battery body 1 when it sinks and is isolated.

[0033] In the specific implementation process, Figure 6 and Fig.12 As shown, a limiting plate 5 covering the battery cover 101 is rotatably installed at the top rear of the battery body 1, and a first torsion spring 501 is installed at the rotation connection between the limiting plate 5 and the battery body 1, and a sleeve 502 corresponding to the two terminals 102 is fixedly installed on the limiting plate 5, and a clamp 503 adapted to the terminal 102 is fixedly installed in the sleeve 502, and the clamp 503 is set to an Ω-shaped structure. A wire 504 electrically connected to the clamp 503 is fixedly installed on the outer side of the sleeve 502. When the lead-acid battery is actually used, the first torsion spring 501 is elastically supported, the limiting plate 5 remains tightly fitted on the top of the battery cover 101, and the sleeve 502 is sleeved on the outside of the terminal 102. Under normal circumstances, the terminal 102 can be protected. The top of the terminal 102 is set as a flat structure, which can be tightly and smoothly plugged into the clip 503. When the battery body 1 sinks due to a dangerous situation, the terminal 102 and the clip 503 can be quickly and smoothly separated, automatically interrupting the power supply to the lead-acid battery in danger, which is beneficial to improving the safety of the lead-acid battery in actual use.

[0034] In the specific implementation process, Fig.12 and Fig.14 As shown, vertically arranged side panels 6 are rotatably installed on the left and right sides of the outer frame 4, and a second torsion spring 601 is installed at the rotation connection between the side panels 6 and the outer frame 4. A baffle 602 for supporting the side panels 6 is fixedly installed on the U-shaped frame 401. The bottom of the U-shaped frame 401 and the side panels 6 are made of flame-retardant materials. When the lead-acid battery is actually used, with the help of the elastic support of the second torsion spring 601, the side panels 6 remain in a state of deflection toward the direction of the battery body 1. When the battery body 1 sinks and is isolated due to a dangerous situation, the baffle 602 loses its support for the side panels 6, so that the left and right side panels 6 can be turned over and closed on the top of the battery cover 101, and can form a more stringent protective isolation in conjunction with the bottom of the U-shaped frame 401.

[0035] Specifically, the working principle and operation method of the present invention are as follows: The lead-acid battery can effectively improve its safety protection performance by setting the end wall around the battery body 1 as a double-layer structure, greatly reducing the leakage of electrolyte due to end wall rupture, and by filling the cavity 2 formed in the end wall of the battery body 1 with brightly colored insulating heat-conducting oil, and driving the pump blade 305 to rotate with the micro motor 304, so as to drive the insulating heat-conducting oil to circulate, which is conducive to improving the effect of dissipating the internal heat of the battery body 1 to the outside, and is convenient for timely reminding the staff to repair when the outer end wall is broken; When a large amount of gas is generated in the battery body 1 due to long-term use, the inner end wall of the battery body 1 is squeezed under the filling of gas, compressing the space of the cavity 2, squeezing the heat transfer oil filled in the cavity 2 into the first communication box 201, pushing the push block 209, driving the rack rod 211 to move, and driving the disc 208 to rotate by means of the meshing of the rack rod 211 and the gear ring 207, so that the disc 208 and the through hole opened on the bottom end wall of the groove 202 are aligned, and the excess gas in the battery body 1 flows downward through the aligned through holes, pushes the valve block 204 upward, and is discharged outward through the air hole 206. When the excess gas is discharged, the valve block 204 and the disc 208 are reset and re-sealed, so that under normal circumstances, even if the lead-acid battery is overturned, it will not cause electrolyte leakage; When a dangerous situation occurs and the lead-acid battery needs to be sunk and isolated, the servo motor 409 is powered on and started to drive the worm 406 to rotate. With the meshing of the worm 406 and the worm wheel 405, the cam 404 is driven to rotate 90°. The cam 404 no longer lifts the cross bar 402, so that the battery body 1 installed in the U-shaped frame 401 falls downward. During the falling process, under the obstruction of the second cross beam 411, the battery body 1 stays below the outer frame 4, and the cross bar 402 acts on the third spring 412, and the elastic deformation of the third spring 412 is used to buffer the falling impact. When the battery body 1 sinks and is isolated, the terminal 102 is separated from the clamp 503, and the power supply to the lead-acid battery is automatically interrupted. After the U-shaped frame 401 drives the battery body 1 to sink, the baffle 602 loses the obstruction to the side plate 6, and the side plates 6 on both sides are flipped and covered on the top of the battery cover 101 under the elastic support of the second torsion spring 601.

[0036] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plate-type lead-acid traction battery with a protective structure, comprising a battery body (1), the top of the battery body (1) being fixedly covered with a battery cover (101), and the top of the battery cover (101) being fixedly inlaid with two terminal posts (102), the top of the battery cover (101) being fixedly mounted with a first filling port (103) communicating with the interior of the battery body (1), and the first filling port (103) being internally threadedly screwed with a first cap (104), characterized in that: The end walls around the battery body (1) are arranged in a double-layer structure, a cavity (2) is formed in the double-layer end walls around the battery body (1), and the cavity (2) is filled with liquid, a first connecting box (201) connected to the cavity (2) is fixedly mounted on the top of the battery cover (101), and a groove (202) recessed downward is arranged in the middle of the top of the first connecting box (201), a toothed ring (207) arranged in the first connecting box (201) is rotatably sleeved on the outer side of the groove (202), and the first connecting box (201) is provided with a plurality of connecting holes (207) disposed in the first connecting box (201). A disc (208) fixedly connected to the gear ring (207) is rotatably embedded on the bottom end wall of the through box (201); symmetrical through holes are provided on the bottom end wall of the groove (202) and the disc (208); a push block (209) is slidably mounted in the first connecting box (201); a second spring (210) for elastically supporting the push block (209) is fixedly mounted in the first connecting box (201); and a rack rod (211) meshing with the gear ring (207) is fixedly mounted on the push block (209).

2. A plate-type lead-acid traction battery with a protective structure according to claim 1, characterized in that: A one-way valve component is arranged above the groove (202), and the one-way valve component comprises a valve cover (203) threadedly connected to the groove (202), a valve block (204) is slidably installed in the valve cover (203), a first spring (205) elastically supported above the valve block (204) is installed in the valve cover (203), a plurality of air holes (206) are arranged around the end wall of the valve cover (203), and the air holes (206) are connected to holes on the inner end wall of the valve cover (203) arranged below the top of the valve block (204).

3. The plate-type lead-acid traction battery with a protective structure according to claim 1, characterized in that: The length of the left and right end walls of the battery body (1) is set to be three times the length of the front and rear end walls thereof; a reinforcing rib (212) is fixedly connected to the cavity (2) formed in the front and rear double-layer end walls of the battery body (1); and the reinforcing rib (212) is set to be a grid-shaped structure; and the bottoms of the cavity (2) formed in the left and right double-layer end walls of the battery body (1) are connected to each other.

4. A plate-type lead-acid traction battery with a protective structure according to claim 1, characterized in that: The liquid filled in the cavity (2) is insulating heat-conducting oil, and a striking colorant is added to the insulating heat-conducting oil, and the striking colorant is set to yellow. A second connecting box (3) connected to the cavity (2) is fixedly installed on the top of the battery cover (101), and a second filling port (301) connected to the interior of the second connecting box (3) is fixedly installed in the middle position of the top of the second connecting box (3), and a second cover cap (302) is screwed on the internal thread of the second filling port (301).

5. A plate-type lead-acid traction battery with a protective structure according to claim 4, characterized in that: A guide plate (303) corresponding to the second filling port (301) is fixedly mounted in the second communication box (3), a micro motor (304) is fixedly mounted on the top of the second cover cap (302), and a pump blade (305) disposed below the second cover cap (302) is fixedly mounted on the drive shaft of the micro motor (304), and the outer dimensions of the pump blade (305) are adapted to the dimensions of the guide plate (303).

6. The plate-type lead-acid traction battery with a protective structure according to claim 1, characterized in that: The battery body (1) is sleeved with an outer frame (4), and a U-shaped frame (401) is arranged inside the outer frame (4) and wrapped around the front, rear and bottom end walls of the battery body (1); horizontal outward-facing cross bars (402) are fixedly installed on the tops of the front and rear ends of the U-shaped frame (401); first cross beams (403) arranged outside the cross bars (402) in corresponding directions are transversely fixed on the front and rear sides of the top of the outer frame (4); a plurality of cams (404) are rotatably installed on the top of the first cross beam (403); the ends of the cams (404) are supported on the bottoms of the cross bars (402) in corresponding directions; and a plurality of cams (404) are rotatably installed inside the first cross beam (403) and a plurality of cams (404) are rotatably installed on the top of the first cross beam (403). (404) a worm wheel (405) coaxially arranged, the outer sides of a plurality of the worm wheels (405) located on the same side are meshingly connected with a transversely arranged worm (406), a longitudinally arranged transmission rod (407) is rotatably installed in the outer frame (4), and mutually meshing bevel teeth (408) are fixedly installed at the ends of the worm (406) and the transmission rod (407), a servo motor (409) is fixedly installed on the battery body (1), and the drive shaft of the servo motor (409) is transmission-connected with the worm (406), and a second crossbeam (411) arranged directly below the corresponding direction cross bar (402) is transversely fixed on the front and rear sides of the bottom of the outer frame (4).

7. A plate-type lead-acid traction battery with a protective structure according to claim 6, characterized in that: A pressure plate (410) is fixedly mounted on the front and rear sides of the top of the battery body (1) and is pressed on the top of the cam (404).

8. The plate-type lead-acid traction battery with a protective structure according to claim 6, characterized in that: A plurality of evenly distributed third springs (412) are fixedly mounted on the tops of the two front and rear second cross beams (411).

9. A plate-type lead-acid traction battery with a protective structure according to claim 6, characterized in that: A limiting plate (5) covering the top of the battery cover (101) is rotatably mounted at the rear of the top of the battery body (1), and a first torsion spring (501) is mounted at the rotational connection between the limiting plate (5) and the battery body (1); a sleeve (502) corresponding to the two terminal posts (102) is fixedly mounted on the limiting plate (5), and a clamp (503) adapted to the terminal posts (102) is fixedly mounted inside the sleeve (502); the clamp (503) is configured as an Ω-shaped structure, and a wire (504) electrically connected to the clamp (503) is fixedly mounted on the outer side of the sleeve (502).

10. A plate-type lead-acid traction battery with a protective structure according to claim 9, characterized in that: Vertically arranged side panels (6) are rotatably mounted on the left and right sides of the outer frame (4), and a second torsion spring (601) is mounted at the rotational connection between the side panels (6) and the outer frame (4). A baffle (602) for supporting the side panels (6) is fixedly mounted on the U-shaped frame (401), and the bottom of the U-shaped frame (401) and the side panels (6) are both made of flame-retardant material.

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