Low-temperature-resistant lead-acid storage battery

Abstract

The low-temperature-resistant lead-acid storage battery relates to the technical field of storage batteries and comprises an outer shell, a lead-acid storage battery body and a top cover, the lower surface of the top cover is connected with a heat preservation plate, clamping grooves are formed in the top ends of the inner walls of the two sides of the outer shell, a dismounting and mounting mechanism is arranged on the top cover, and a heat insulation plate and a heat preservation layer are arranged on the inner wall of the outer shell. A supporting cover is connected to the bottom wall of an inner cavity of the outer shell, a heating pipe and a fan are arranged on the inner wall of the supporting cover, air inlets are formed in the bottom ends of the two side walls of the outer shell, air inlet pipes are installed on the air inlets, a U-shaped bearing frame is arranged at the top of the supporting cover, multiple sets of air openings are formed in the U-shaped bearing frame, and plugging parts are arranged at the bottom ends of the outer walls of the two sides of the outer shell. Hot air can be blown to the lead-acid storage battery, the low-temperature-resistant effect of the lead-acid storage battery is good, the heat insulation plate can prevent low temperature of the external environment from entering the outer shell, the heat insulation layer and the heat insulation plate play a role in heat insulation, heat loss of an inner cavity of the outer shell is avoided, and the low-temperature-resistant performance of the lead-acid storage battery is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of storage batteries, in particular to a low-temperature resistant lead-acid storage battery. Background Art

[0002] Lead-acid battery is an important energy storage device, which consists of positive electrode PbO2, negative electrode Pb and dilute sulfuric acid electrolyte. It has stable voltage and low cost, but low specific energy, limited cycle life and environmental pollution. Lead-acid battery is widely used in automobile, electricity, communication and other fields, and plays an irreplaceable role as a starting, backup or energy storage power source.

[0003] In order to improve the low temperature resistance of lead-acid batteries, most of the existing lead-acid batteries are placed inside a shell for use, and insulation structures such as insulation cotton are installed on the inner wall of the shell. The insulation structure can only play a role in heat preservation and cannot provide heat. The lead-acid battery generates less heat when used in a low temperature environment, and the temperature inside the shell is still at a low level. The optimal temperature of the lead-acid battery during use cannot be maintained, which affects the performance of the lead-acid battery. For this reason, we propose a low-temperature resistant lead-acid battery. Summary of the invention

[0004] The object of the present invention is to provide a low temperature resistant lead-acid battery to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A low temperature resistant lead-acid battery comprises an outer shell and a lead-acid battery body, a top cover is arranged on the top of the outer shell, a heat preservation plate is connected to the lower surface of the top cover, slots are arranged on the top of the inner walls on both sides of the outer shell, and a disassembly mechanism for fixing the slots is arranged on the top cover;

[0007] The inner wall of the outer shell is provided with a heat insulation board, the inner side of the heat insulation board is provided with a heat preservation layer, the inner cavity bottom wall of the outer shell is connected with a support cover, the inner wall of the support cover is provided with a heating pipe, the inner wall of the support cover and the fan is connected through a bracket above the heating pipe, the bottom ends of the two side walls of the outer shell are provided with air inlets, and the air inlet pipe is installed on the air inlet, the other end of the air inlet pipe is connected with the inner cavity of the support cover, the top of the support cover is provided with a U-shaped bearing frame connected thereto, and a plurality of air outlets are provided on a side of the U-shaped bearing frame close to the lead-acid battery body;

[0008] The bottom ends of the outer walls on both sides of the outer shell are provided with blocking components, and the blocking components are located outside the air inlet.

[0009] Preferably, a positive pole and a negative pole are connected to the lead-acid battery body, and the top ends of the positive pole and the negative pole pass through the top cover, and the outer sides of the positive pole and the negative pole are covered with protective covers.

[0010] Preferably, the disassembly and assembly mechanism comprises a U-shaped seat, a cavity is formed in the inner cavity of the top cover, and the cavity is connected with the inner cavity of the U-shaped seat, and two groups of through grooves connecting the cavity and the inner cavity of the U-shaped seat are formed on the top wall of the top cover.

[0011] Preferably, a handwheel is connected to the right outer wall of the U-shaped seat, and a bidirectional screw is installed on the handwheel. The other end of the bidirectional screw is rotatably connected to the left inner wall of the U-shaped seat through a bearing, and two groups of threaded blocks are threadedly connected to the bidirectional screw. A cross bar is installed above the inner wall of the U-shaped seat, and two groups of sliders are slidably connected to the cross bar. The bottoms of the two groups of sliders are respectively connected to the tops of the two groups of threaded blocks, and the bottoms of the two groups of threaded blocks are connected to connecting pieces. The two groups of connecting pieces are respectively slidably connected to the two groups of through grooves, and both groups of connecting pieces are installed with card strips that match the card slots.

[0012] Preferably, the blocking component comprises a frame, both side walls of the frame are threadedly connected with adjusting bolts, and the other end of the adjusting bolt is provided with a blocking plate for blocking the air inlet.

[0013] Preferably, the inner walls of the two groups of air inlets are both provided with dustproof nets, and the dustproof nets are movably connected to the inner walls of the air inlets by means of snap-fitting.

[0014] Preferably, a handle is installed on the top of the U-shaped seat, and the hand-held end of the handle is covered with a non-slip rubber sleeve, and the two sets of card strips are bonded with non-slip pads on one side close to the card slot.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The fan of the present invention can generate suction after working, and the air inlet and the air inlet pipe transport the outside air into the support cover. The heating tube in the support cover generates heat after working, and the fan transports the hot air into the U-shaped bearing frame. Multiple groups of air outlets blow the hot air onto the lead-acid battery body. The lead-acid battery has good low temperature resistance, and the lead-acid battery can maintain stable performance in a low temperature environment, which ensures the use effect of the lead-acid battery in a low temperature environment. The heat insulation board on the inner wall of the outer shell plays a heat insulation role to prevent the low temperature of the external environment from entering the outer shell. The insulation layer and the insulation board play a heat insulation role to prevent the heat loss in the inner cavity of the outer shell, which further improves the low temperature resistance of the lead-acid battery;

[0017] 2. The handwheel on the disassembly and assembly mechanism can drive the bidirectional screw to rotate after being rotated. After the two sets of threaded blocks threadedly connected on the bidirectional screw are limited by the sliding of the cross bar and the slider, the two sets of connecting parts can slide in the through grooves. The clamping strips on the two sets of connecting parts can be quickly connected or disconnected from the clamping slots, thereby realizing the rapid disassembly and assembly of the top cover and the outer shell, facilitating the installation, access and maintenance of the internal lead-acid battery. The two sets of adjusting bolts on the sealing component can drive the sealing plates to move after being rotated. The two sets of sealing plates can block the air inlet to prevent water vapor from entering the inner cavity of the outer shell from the air inlet when not in use, thereby improving the waterproof ability of the lead-acid battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0020] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the front structure of the outer shell of the present invention;

[0022] Figure 5 It is a cross-sectional schematic diagram of the front connection structure of the outer shell, the top cover and the disassembly and assembly mechanism of the present invention;

[0023] Figure 6 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0024] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0025] In the figure: 1. outer shell; 2. top cover; 3. disassembly and assembly mechanism; 300. U-shaped seat; 301. hand wheel; 302. two-way screw rod; 303. threaded block; 304. cross bar; 305. slider; 306. through groove; 307. connector; 308. cavity; 309. clamping strip; 4. blocking component; 400. frame; 401. adjusting bolt; 402. blocking plate; 5. protective cover; 6. positive pole; 7. negative pole; 8. air inlet; 9. U-shaped bearing frame; 10. lead-acid battery body; 11. support cover; 12. fan; 13. heating pipe; 14. air inlet pipe; 15. dust net; 16. insulation board; 17. clamping slot; 18. handle; 19. air outlet; 20. insulation layer; 21. insulation board. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] See also Figure 1-7 The present invention provides a technical solution: a low-temperature resistant lead-acid battery, comprising an outer shell 1 and a lead-acid battery body 10, a top cover 2 is provided on the top of the outer shell 1, a heat preservation plate 16 is connected to the lower surface of the top cover 2, a card slot 17 is provided on the top of the inner wall of both sides of the outer shell 1, and a disassembly mechanism 3 for fixing the card slot 17 is provided on the top cover 2; the lead-acid battery body 10 is an existing battery, and the specific structure and working principle are not described here, and the disassembly mechanism 3 realizes the rapid disassembly and assembly of the top cover 2 and the outer shell 1, which can facilitate the installation and removal and maintenance of the internal lead-acid battery body 10;

[0029] The inner wall of the outer shell 1 is provided with a heat insulation board 21, and the inner side surface of the heat insulation board 21 is provided with a heat preservation layer 20. The bottom wall of the inner cavity of the outer shell 1 is connected with a support cover 11, and the inner wall of the support cover 11 is provided with a heating pipe 13. The inner wall of the support cover 11 and the fan 12 is connected through a bracket above the heating pipe 13. The bottom ends of the two side walls of the outer shell 1 are provided with air inlets 8, and the air inlet pipe 14 is installed on the air inlet 8. The other end of the air inlet pipe 14 is connected with the inner cavity of the support cover 11. The top of the support cover 11 is provided with a U-shaped bearing frame 9 that is connected, and the U-shaped bearing frame 9 is provided with a plurality of groups of air outlets 19 on one side close to the lead-acid battery body 10;

[0030] The fan 12 is an exhaust fan. The electrical ends of the fan 12 and the heating tube 13 are electrically connected to the electrical ends of the installed lead-acid battery body 10 through wires. (A battery dedicated to powering the fan 12 and the heating tube 13 can also be installed inside the outer shell 1). When the lead-acid battery body 10 is used in a low temperature environment, the fan 12 and the heating tube 13 work at the same time. After the fan 12 works, negative pressure suction is generated. The air inlet 8 sucks in the outside air and transports it to the inner cavity of the support cover 11 through the air inlet pipe 14. After the heating tube 13 works, it generates heat. The suction generated by the fan 12 blows the hot air toward the U-shaped bearing frame 9 The inner cavity of the U-shaped carrier frame 9, the tuyere 19 opened on the U-shaped carrier frame 9 blows hot air to the lead-acid battery body 10, so that the lead-acid battery body 10 is kept at the optimal operating temperature, the lead-acid battery has good low temperature resistance, the lead-acid battery can maintain stable performance in a low temperature environment, and the use effect of the lead-acid battery in a low temperature environment is guaranteed; the heat insulation board 21 on the inner wall of the outer shell 1 plays a heat insulation role, preventing the low temperature of the external environment from entering the outer shell 1, and the insulation layer 20 and the insulation board 16 play a heat insulation role, preventing the heat loss in the inner cavity of the outer shell 1, and further improving the low temperature resistance of the lead-acid battery;

[0031] A blocking component 4 is provided at the bottom end of the outer wall on both sides of the outer shell 1, and the blocking component 4 is located on the outside of the air inlet 8; when the air inlet 8 needs to take in air, the blocking component 4 does not block the air inlet 8 to ensure the normal air intake of the air inlet 8. When the lead-acid battery is not used in a low-temperature environment, the blocking component 4 can block the air inlet 8 to prevent water vapor from entering the inner cavity of the outer shell 1 from the air inlet 8 when not in use, thereby improving the waterproof ability of the lead-acid battery.

[0032] Among them, the lead-acid battery body 10 is connected to a positive electrode column 6 and a negative electrode column 7, and the top ends of the positive electrode column 6 and the negative electrode column 7 pass through the top cover 2, and the outer sides of the positive electrode column 6 and the negative electrode column 7 are covered with a protective cover 5; the positive electrode column 6 and the negative electrode column 7 can be connected to external electrical equipment through a wire to supply power to the electrical equipment, and the protective cover 5 plays a role in protecting the positive electrode column 6 and the negative electrode column 7.

[0033] The disassembly and assembly mechanism 3 includes a U-shaped seat 300, a cavity 308 is opened in the inner cavity of the top cover 2, and the cavity 308 is connected to the inner cavity of the U-shaped seat 300, and the top wall of the top cover 2 is opened with two groups of through grooves 306 connecting the cavity 308 and the inner cavity of the U-shaped seat 300; the U-shaped seat 300 and the top cover 2 are fixedly connected.

[0034] A hand wheel 301 is connected to the right outer wall of the U-shaped seat 300, and a bidirectional screw rod 302 is installed on the hand wheel 301. The other end of the bidirectional screw rod 302 is rotatably connected to the left inner wall of the U-shaped seat 300 through a bearing, and two groups of threaded blocks 303 are threadedly connected to the bidirectional screw rod 302. A cross bar 304 is installed above the inner wall of the U-shaped seat 300, and two groups of sliders 305 are slidably connected to the cross bar 304. The bottoms of the two groups of sliders 305 are respectively connected to the tops of the two groups of threaded blocks 303. The bottoms of the two groups of threaded blocks 303 are both connected to connecting pieces 307. The two groups of connecting pieces 307 are respectively slidably connected to the two groups of through grooves 306, and the two groups of connecting pieces 307 are both installed with card strips 309 adapted to the card slots 17.

[0035] The two ends of the threaded block 303 are fixedly connected to the slider 305 and the connecting piece 307 respectively, and the connecting piece 307 is fixedly connected to the clamping strip 309. The rotation of the hand wheel 301 can drive the bidirectional screw rod 302 to rotate. After the two groups of threaded blocks 303 threadedly connected on the bidirectional screw rod 302 are limited by the sliding of the cross bar 304 and the slider 305, the two groups of connecting pieces 307 can slide in the two groups of through grooves 306 in relative or opposite directions, and the clamping strips 309 on the two groups of connecting pieces 307 can move in relative or opposite directions. The two groups of clamping strips 309 can be quickly connected or disconnected from the two groups of clamping grooves 17, thereby realizing the rapid disassembly and assembly of the top cover 2 and the outer shell 1, and facilitating the installation, access and maintenance of the internal lead-acid battery body 10.

[0036] The blocking component 4 includes a frame 400, both side walls of the frame 400 are threadedly connected with adjusting bolts 401, and the other end of the adjusting bolt 401 is provided with a blocking plate 402 for blocking the air inlet 8;

[0037] The adjusting bolts 401 are movably connected to the sealing plates 402 through bearings. When the lead-acid battery is used in a low-temperature environment, the two groups of adjusting bolts 401 rotate to move adjacent sealing plates 402 away from each other, exposing the air inlet 8 to facilitate the air intake of the air inlet 8. When the lead-acid battery is not used in a low-temperature environment, the two groups of adjusting bolts 401 rotate to move adjacent sealing plates 402 closer to each other and fit together, thereby sealing the air inlet 8, preventing water vapor from entering the inner cavity of the outer shell 1 from the air inlet 8, and improving the waterproof ability of the lead-acid battery.

[0038] The inner walls of the two groups of air inlets 8 are both provided with dustproof nets 15, and the dustproof nets 15 are movably connected to the inner walls of the air inlets 8 by snapping; the dustproof nets 15 play a dustproof role, preventing dust from entering the inner cavity of the outer shell 1 from the air inlet 8, thereby improving the dustproof ability of the lead-acid battery, and the snap-on dustproof nets 15 can be easily disassembled and assembled, which is convenient for disassembly, cleaning and installation of the dustproof nets 15.

[0039] Embodiment 2:

[0040] Reference Figure 5 and Figure 7 This embodiment is different from the first embodiment in that: a handle 18 is installed on the top of the U-shaped seat 300, and the hand-held end of the handle 18 is covered with an anti-skid rubber sleeve, and the two sets of clamping strips 309 are bonded with anti-skid pads on one side close to the clamping slot 17; the handle 18 facilitates the taking and placing of the outer shell 1, and the anti-skid rubber sleeve plays an anti-skid role to prevent the hand from slipping when holding the handle 18, and the anti-skid pad on the clamping strip 309 plays an anti-skid role, which improves the stability of the connection between the clamping strip 309 and the clamping slot 17, and improves the stability of the top cover 2 and the outer shell 1 when installed.

[0041] Working principle: When the present invention is used, when the lead-acid battery is used in a low temperature environment, the two groups of adjusting bolts 401 rotate to make the adjacent blocking plates 402 move away from each other, exposing the air inlet 8 to facilitate the air intake of the air inlet 8. The rotation of the hand wheel 301 on the disassembly and assembly mechanism 3 can drive the two-way screw rod 302 to rotate. After the two groups of threaded blocks 303 threadedly connected on the two-way screw rod 302 are limited by the sliding of the cross bar 304 and the slider 305, the two groups of connecting members 307 can slide in the two groups of through grooves 306 in relative or opposite directions. The clamping strips 309 on the assembling and disassembling mechanism 3 can be moved in relative or opposite directions, and the two groups of clamping strips 309 can be quickly connected or disconnected with the two groups of clamping slots 17, thereby realizing the rapid disassembly and assembly of the top cover 2 and the outer shell 1. After the top cover 2 is opened (the clamping strips 309 are disconnected from the clamping slots 17 at this time, and the two groups of clamping strips 309 are stored in the cavity 308), the lead-acid battery body 10 is placed on the U-shaped carrying frame 9, and then, by reversing the hand wheel 301 on the disassembling and assembling mechanism 3, the two groups of clamping strips 309 move away from each other and connect with the corresponding clamping slots 17, thus completing the connection and fixation of the top cover 2 and the outer shell 1;

[0042] The fan 12 is an exhaust fan. The electrical ends of the fan 12 and the heating tube 13 are electrically connected to the electrical ends of the installed lead-acid battery body 10 through wires. When the lead-acid battery body 10 is used in a low temperature environment, the fan 12 and the heating tube 13 work at the same time. After the fan 12 works, negative pressure suction is generated, and the air inlet 8 sucks in the outside air and transports it to the inner cavity of the support cover 11 through the air inlet pipe 14. After the heating tube 13 works, heat is generated. The suction generated by the fan 12 blows the hot air to the inner cavity of the U-shaped bearing frame 9. The air outlet opened on the U-shaped bearing frame 9 19 blows hot air to the lead-acid battery body 10, so that the lead-acid battery body 10 is kept at the optimal operating temperature. The lead-acid battery has good low temperature resistance, and the lead-acid battery can maintain stable performance in a low temperature environment, which ensures the use effect of the lead-acid battery in a low temperature environment. The heat insulation board 21 on the inner wall of the outer shell 1 plays a heat insulation role to prevent the low temperature of the external environment from entering the outer shell 1. The insulation layer 20 and the insulation board 16 play a heat insulation role to prevent the heat loss in the inner cavity of the outer shell 1, and further improve the low temperature resistance of the lead-acid battery;

[0043] Among them, when the lead-acid battery is not used in a low-temperature environment, the two sets of adjusting bolts 401 rotate to make the adjacent sealing plates 402 approach each other and fit together, that is, the air inlet 8 is sealed to prevent water vapor from entering the inner cavity of the outer shell 1 from the air inlet 8, thereby improving the waterproof ability of the lead-acid battery.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low temperature resistant lead-acid battery, comprising an outer shell (1) and a lead-acid battery body (10), characterized in that: The top of the outer shell (1) is provided with a top cover (2), the lower surface of the top cover (2) is connected to a heat preservation plate (16), the top ends of the inner walls on both sides of the outer shell (1) are provided with a card slot (17), and the top cover (2) is provided with a disassembly and assembly mechanism (3) for fixing the card slot (17); The inner wall of the outer shell (1) is provided with a heat insulation board (21), the inner side surface of the heat insulation board (21) is provided with a heat preservation layer (20), the inner cavity bottom wall of the outer shell (1) is connected with a support cover (11), the inner wall of the support cover (11) is provided with a heating pipe (13), the inner wall of the support cover (11) and located above the heating pipe (13) are connected with a fan (12) through a bracket, the bottom ends of both side walls of the outer shell (1) are provided with air inlets (8), and an air inlet pipe (14) is installed on the air inlet (8), the other end of the air inlet pipe (14) is connected with the inner cavity of the support cover (11), the top of the support cover (11) is provided with a U-shaped bearing frame (9) which is connected, and a side of the U-shaped bearing frame (9) close to the lead-acid battery body (10) is provided with a plurality of groups of air outlets (19); The bottom ends of the outer walls on both sides of the outer shell (1) are provided with blocking components (4), and the blocking components (4) are located outside the air inlet (8).

2. The low temperature resistant lead-acid battery according to claim 1, characterized in that: The lead-acid battery body (10) is connected to a positive pole column (6) and a negative pole column (7), and the top ends of the positive pole column (6) and the negative pole column (7) penetrate the top cover (2), and the outer sides of the positive pole column (6) and the negative pole column (7) are covered with protective covers (5).

3. The low temperature resistant lead-acid battery according to claim 1, characterized in that: The disassembly and assembly mechanism (3) comprises a U-shaped seat (300), the inner cavity of the top cover (2) is provided with a cavity (308), and the cavity (308) is connected with the inner cavity of the U-shaped seat (300), and the top wall of the top cover (2) is provided with two groups of through grooves (306) connecting the cavity (308) and the inner cavity of the U-shaped seat (300).

4. The low temperature resistant lead-acid battery according to claim 3, characterized in that: The right outer wall of the U-shaped seat (300) is connected to a hand wheel (301), and a bidirectional screw rod (302) is installed on the hand wheel (301). The other end of the bidirectional screw rod (302) is rotatably connected to the left inner wall of the U-shaped seat (300) through a bearing, and two groups of threaded blocks (303) are threadedly connected to the bidirectional screw rod (302).

5. The low temperature resistant lead-acid battery according to claim 4, characterized in that: A cross bar (304) is installed above the inner wall of the U-shaped seat (300), and two groups of sliders (305) are slidably connected to the cross bar (304). The bottoms of the two groups of sliders (305) are respectively connected to the tops of the two groups of threaded blocks (303). The bottoms of the two groups of threaded blocks (303) are both connected to connecting pieces (307). The two groups of connecting pieces (307) are respectively slidably connected to the two groups of through grooves (306), and the two groups of connecting pieces (307) are both installed with clamping strips (309) that are compatible with the clamping grooves (17).

6. The low temperature resistant lead-acid battery according to claim 1, characterized in that: The blocking component (4) comprises a frame (400), both side walls of the frame (400) are threadedly connected with adjustment bolts (401), and the other end of the adjustment bolt (401) is provided with a blocking plate (402) for blocking the air inlet (8).

7. The low temperature resistant lead-acid battery according to claim 1, characterized in that: The inner walls of the two groups of air inlets (8) are both provided with dustproof nets (15), and the dustproof nets (15) are movably connected to the inner walls of the air inlets (8) by means of a snap connection.

8. The low temperature resistant lead-acid battery according to claim 5, characterized in that: A handle (18) is installed on the top of the U-shaped seat (300), and the hand-held end of the handle (18) is covered with an anti-skid rubber sleeve, and the two sets of card strips (309) are bonded with anti-skid pads on one side close to the card slot (17).

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