An adjustable capacity lead-acid battery energy storage device

Abstract

This utility model discloses an adjustable capacity lead-acid battery energy storage device, relating to the technical field of energy storage battery devices. It includes a battery block with a positive and a negative electrode fixedly connected to both sides. A connecting block is fixedly connected to the top of the battery block, and a connecting groove is formed at the bottom. The length of the connecting block and the connecting groove on the same side is slightly shorter than the battery block. Adjacent battery blocks are stacked by inserting the connecting blocks into the connecting groove. Adjacent battery blocks are electrically connected through their positive and negative electrodes. The battery blocks are divided into multiple groups by a fixing mechanism and a height adjustment mechanism. This utility model adjusts the total electrical energy that the energy storage device can store by connecting the positive and negative electrodes of multiple battery blocks. By increasing or decreasing the number of battery blocks, the capacity of the energy storage device can be changed at any time. By inserting the connecting blocks of adjacent battery blocks into the connecting groove, the fixed battery blocks are stacked and fixed, thus making efficient use of space.

Description

Technical Field

[0001] This utility model relates to the field of energy storage battery device technology, specifically to an adjustable capacity lead-acid battery energy storage device. Background Technology

[0002] Lead-acid battery energy storage devices are energy storage equipment with lead-acid batteries as their core. They consist of multiple lead-acid batteries connected in series, parallel, or mixed configurations, along with a battery management system, charge / discharge controller, and other components. They utilize the chemical reaction of lead-acid batteries to store and release electrical energy. They are characterized by low cost, mature technology, and high safety, and are widely used in backup power, renewable energy grid connection, and electric vehicles. Different capacities and voltage levels can be designed to provide stable power support for equipment. Sometimes, capacity adjustments are necessary, thus requiring the design of an adjustable-capacity lead-acid battery energy storage device.

[0003] Patent publication number CN219513272U discloses an energy storage battery device, including a housing, a cover, a pressure strip assembly, and at least two battery cells. The pressure strip assembly is located at the opening of the housing and connected to the housing at both ends. The pressure strip assembly is located on the outer side of the at least two battery cells on one side of the opening of the housing, fixing the battery cells. The pressure strip assembly has a first pressure relief hole for relieving pressure from an explosion-proof valve, and the first pressure relief hole corresponds to the explosion-proof valve. The cover is located on the housing, covering the pressure strip assembly and the at least two battery cells. The cover has a second pressure relief hole for relieving pressure from the explosion-proof valve, and the second pressure relief hole corresponds to the first pressure relief hole.

[0004] To address the issue of traditional batteries being difficult to depressurize, existing technologies employ a combination of a casing and pressure strip assembly to fix the battery cells, eliminating the need for plastic cell mounting brackets and removing the pre-assembly of cells into modules. This improves the energy density of individual energy storage battery units. However, the second pressure relief hole in the casing and the first pressure relief hole on the pressure strip bracket still present challenges. Consequently, the battery capacity cannot be adjusted, leading to the inability to quickly adjust the required capacity according to demand. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable capacity lead-acid battery energy storage device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] The device includes a battery block, with a positive and a negative electrode fixedly connected to both sides of the battery block, a connecting block fixedly connected to the top of the battery block, and a connecting groove formed at the bottom of the battery block. The length of the connecting block and the connecting groove on the same side is slightly shorter than that of the battery block. Adjacent battery blocks are stacked on top of each other by inserting the connecting blocks into the connecting groove. Adjacent battery blocks are electrically connected through the positive and negative electrodes. The battery blocks are divided into multiple groups by fixing mechanisms and height adjustment mechanisms.

[0008] It also includes a fixing mechanism, a connecting mechanism, and a height adjustment mechanism; the storage mechanism includes a collection cabinet, the battery blocks are disposed inside the collection cabinet, a shelf is fixedly connected inside the collection cabinet, multiple sets of battery blocks are evenly distributed on the top of the shelf, through holes are opened on the surface of the shelf, a cabinet door is hinged to the front of the collection cabinet, a power connector is fixedly connected to the side of the collection cabinet, and the positive and negative terminals at both ends are electrically connected to the power connector through the connecting mechanism;

[0009] The fixing mechanism is used to fix the stacked battery blocks;

[0010] The connecting mechanism is used to connect two adjacent groups of battery blocks;

[0011] The height adjustment mechanism is used to adjust the height of the fixed mechanism.

[0012] A further improvement of the present invention is that the fixing mechanism includes a lower slot and an upper slot, the bottom of the battery block is inserted into the lower slot, the top of the battery block is inserted into the upper slot, the lower slot and the upper slot are fixedly connected by a height adjustment mechanism, and sliding grooves are provided on the front and rear sides of the top of the lower slot and the front and rear sides of the top of the upper slot.

[0013] A further improvement of this utility model is that: a base plate is fixedly connected to the bottom of the lower slot, the base plate is fixedly connected to the top of the shelf, bolt holes are opened on the surface of the base plate, and the base plate is fixedly connected to the top of the shelf through the bolt holes.

[0014] A further improvement of the present invention is that the connecting mechanism includes a connecting box and a long wire. The long wire is fixedly connected to the inside of the bottom positive electrode, and the top negative electrode is fixedly connected to the inside of the connecting box. Connecting posts are fixedly connected to the left and right sides of the connecting box. The connecting posts on both sides are respectively sleeved with the negative electrode and the long wire. Connecting wires are fixedly connected between adjacent connecting posts.

[0015] A further improvement of this utility model is that: the height adjustment mechanism includes connecting rods and a fixed plate. The two ends of the connecting rods are slidably connected to the inside of the slide groove. There are four connecting rods, which are arranged in a circumferential array and are stacked in two groups according to whether they are collinear. The connecting rods are slidably connected to the inside of the fixed plate. A spur gear is rotatably connected to the center of the fixed plate. A rack is fixedly connected to the same side of each connecting rod. The rack meshes with the spur gear. A rotating shaft is fixedly connected to the axis of the spur gear. The end of the rotating shaft near the spur gear is threaded. A locking block is fixedly connected to the other end of the rotating shaft. A partition is movably connected between the two groups of connecting rods and to the outer wall surface of the rotating shaft.

[0016] A further improvement of the present invention is that: a cap is inserted into the outside of the rotating shaft, a fixing screw sleeve is provided inside the cap, the fixing screw sleeve is threaded to one end of the rotating shaft, and a slot is provided at the end of the fixing screw sleeve, which cooperates with a locking block at the end of the rotating shaft.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides an adjustable capacity lead-acid battery energy storage device, which employs a combination of battery blocks, positive electrode, negative electrode, connecting block, connecting groove, base plate, lower slot, upper slot, sliding groove, bolt hole, connecting box, connecting wire, connecting column, long wire, collection cabinet, shelf, cabinet door, and power connector. By connecting the positive and negative electrodes of multiple battery blocks to each other, the total electrical energy that the energy storage device can store can be adjusted. By increasing or decreasing the number of battery blocks, the capacity of the energy storage device can be changed at any time. The fixed battery blocks are stacked and fixed by inserting the connecting blocks of adjacent battery blocks into the connecting groove. This design makes efficient use of space and facilitates organization and replacement. One group of negative electrodes is connected to the inside of the connection box via a connecting post. Then, long wires are used to connect the positive electrodes of adjacent groups to the connection box, thus connecting the adjacent groups of battery blocks. The grouped battery blocks are snapped into the fixing mechanism and then fixed to the top of the shelf by the base plate. Long wires used to connect the upper and lower layers can pass through the through holes on the shelf surface. The opposite electrodes of the first and last battery blocks are electrically connected to the power connector through the connection mechanism. The power connector allows the device to supply power to the outside.

[0019] 2. This utility model provides an adjustable capacity lead-acid battery energy storage device, which adopts the cooperation of a fixed plate, spur gear, rack, connecting rod, rotating shaft, screw cap, fixing screw sleeve, and slot. By rotating the screw cap, the fixing screw sleeve is disengaged from the rotating shaft. Then, the screw cap is installed to engage the locking block at the top of the rotating shaft in the slot. Rotating the screw cap drives the spur gear to rotate, which in turn drives the rack to slide, thereby driving the connecting rod to slide inside the fixed plate. By increasing the distance between the ends of the two connecting rods, the distance between the upper slot and the sliding groove is increased, allowing the device to fix more battery blocks. After adjustment, rotating the screw cap, through the connection between the fixing screw sleeve and the rotating shaft, causes the screw cap to press against the separator, which in turn presses against the spur gear, thereby restricting the rotation of the spur gear and fixing the height of the device. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the adjustable capacity lead-acid battery energy storage device of this utility model;

[0021] Figure 2 This is a schematic diagram of the top structure of the battery block of this utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the battery block of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 6 This is a schematic diagram of the internal structure of the screw cap of this utility model;

[0026] Figure 7 This is a schematic diagram of the height adjustment mechanism of this utility model.

[0027] In the diagram: 2. Fixing mechanism; 3. Connecting mechanism; 4. Height adjustment mechanism; 6. Storage mechanism; 11. Battery block; 12. Positive electrode; 13. Negative electrode; 14. Connecting block; 15. Connecting groove; 21. Base plate; 22. Lower slot; 23. Upper slot; 24. Sliding groove; 25. Bolt hole; 31. Connecting box; 32. Connecting wire; 33. Connecting column; 34. Long wire; 41. Fixing plate; 42. Spur gear; 43. Rack; 44. Connecting rod; 45. Rotating shaft; 46. Partition; 51. Screw cap; 52. Fixing screw sleeve; 53. Slot; 61. Collection cabinet; 62. Shelf; 63. Cabinet door; 64. Power connector. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to embodiments:

[0029] Example 1

[0030] like Figure 1-5 As shown, this utility model provides an adjustable capacity lead-acid battery energy storage device, including a battery block 11. A positive electrode 12 and a negative electrode 13 are fixedly connected to both sides of the battery block 11, and a connecting block 14 is fixedly connected to the top of the battery block 11. A connecting groove 15 is opened at the bottom of the battery block 11. The length of the connecting block 14 and the connecting groove 15 on the same side is slightly shorter than that of the battery block 11. Adjacent battery blocks 11 are stacked on top of each other by inserting the connecting block 14 into the connecting groove 15. Adjacent battery blocks 11 are electrically connected to the positive electrode 12 and the negative electrode 13. The battery blocks 11 are divided into multiple groups by fixing mechanism 2 and height adjustment mechanism 4.

[0031] It also includes a fixing mechanism 2, a connecting mechanism 3, and a height adjustment mechanism 4; the storage mechanism 6 includes a collection cabinet 61, battery blocks 11 are disposed inside the collection cabinet 61, a shelf 62 is fixedly connected inside the collection cabinet 61, multiple sets of battery blocks 11 are evenly distributed on the top of the shelf 62, through holes are opened on the surface of the shelf 62, a cabinet door 63 is hinged to the front of the collection cabinet 61, a power connector 64 is fixedly connected to the side of the collection cabinet 61, and the positive pole 12 and negative pole 13 at both ends are electrically connected to the power connector 64 through the connecting mechanism 3;

[0032] The fixing mechanism 2 is used to fix the stacked battery blocks 11;

[0033] The connecting mechanism 3 is used to connect two adjacent sets of battery blocks 11;

[0034] The height adjustment mechanism 4 is used to adjust the height of the fixing mechanism 2. The fixing mechanism 2 includes a lower slot 22 and an upper slot 23. The bottom of the battery block 11 is inserted into the lower slot 22, and the top of the battery block 11 is inserted into the upper slot 23. The lower slot 22 and the upper slot 23 are fixedly connected by the height adjustment mechanism 4. Sliding grooves 24 are provided on the front and rear sides of the top of the lower slot 22 and the front and rear sides of the top of the upper slot 23. A base plate 21 is fixedly connected to the bottom of the lower slot 22, and the base plate 21 is fixedly connected to the shelf 6. At the top of 2, bolt holes 25 are provided on the surface of the base plate 21. The base plate 21 is fixedly connected to the top of the shelf 62 through the bolt holes 25. The connecting mechanism 3 includes a connecting box 31 and a long wire 34. The long wire 34 is fixedly connected to the inside of the bottom positive electrode 12, and the top negative electrode 13 is fixedly connected to the inside of the connecting box 31. Connecting posts 33 are fixedly connected to the left and right sides of the connecting box 31. The two connecting posts 33 are respectively connected to the negative electrode 13 and the long wire 34. Connecting wires 32 are fixedly connected between adjacent connecting posts 33.

[0035] In this embodiment, the total electrical energy that the energy storage device can store is adjusted by connecting the positive electrode 12 and negative electrode 13 of multiple battery blocks 11 to each other. The capacity of the energy storage device can be changed at any time by increasing or decreasing the number of battery blocks 11. The fixed battery blocks 11 are stacked and fixed by inserting the connecting block 14 of adjacent battery blocks 11 into the connecting slot 15, thereby making reasonable use of space and facilitating organization and replacement. A group of negative electrodes 13 are connected to the inside of the connecting box 31 through the connecting post 33. Then, the positive electrodes 12 of adjacent groups are connected to the connecting box 31 by using long wires 34, thereby connecting the adjacent groups of battery blocks 11 to each other. The grouped battery blocks 11 are snapped into the fixing mechanism 2 and then fixed to the top of the shelf 62 by the base plate 21. The long wires 34 used to connect the upper and lower layers can pass through the through holes on the surface of the shelf 62. The opposite electrodes of the first battery block 11 and the last battery block 11 are electrically connected to the power connector 64 through the connecting mechanism 3. The power connector 64 allows the device to supply power to the outside.

[0036] Example 2

[0037] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the height adjustment mechanism 4 includes connecting rods 44 and a fixed plate 41. The two ends of the connecting rods 44 are slidably connected to the inside of the slide groove 24. There are four connecting rods 44, which are arranged in a circular array and stacked in two groups according to whether they are collinear. The connecting rods 44 are slidably connected to the inside of the fixed plate 41. A spur gear 42 is rotatably connected to the center of the fixed plate 41. A rack 43 is fixedly connected to the same side of each connecting rod 44. The rack 43 and the spur gear... 42 mesh with each other. A rotating shaft 45 is fixedly connected to the axis of the spur gear 42. The end of the rotating shaft 45 near the spur gear 42 is threaded. A locking block is fixedly connected to the other end of the rotating shaft 45. A partition 46 is movably connected between the two sets of connecting rods 44 and the outer wall surface of the rotating shaft 45. A screw cap 51 is inserted into the outside of the rotating shaft 45. A fixing screw sleeve 52 is provided inside the screw cap 51. The fixing screw sleeve 52 is threaded to one end of the rotating shaft 45. A slot 53 is opened at the end of the fixing screw sleeve 52. The slot 53 cooperates with the locking block at the end of the rotating shaft 45.

[0038] In this embodiment, by rotating the cap 51, the fixing screw sleeve 52 is disengaged from the rotating shaft 45. Then, the cap 51 is used to engage the locking block at the top of the rotating shaft 45 inside the slot 53. Rotating the cap 51 drives the spur gear 42 to rotate. The spur gear 42 drives the rack 43 to slide, which in turn drives the connecting rod 44 to slide inside the fixing plate 41. By increasing the distance between the ends of the two connecting rods 44, the distance between the upper slot 23 and the slide groove 24 is increased, allowing the device to fix more battery blocks 11. After adjustment, rotating the cap 51, through the connection between the fixing screw sleeve 52 and the rotating shaft 45, causes the cap 51 to press the partition 46, which in turn presses the spur gear 42, thereby restricting the rotation of the spur gear 42 and fixing the height of the device.

[0039] The working principle of this adjustable capacity lead-acid battery energy storage device will be explained in detail below.

[0040] like Figure 1-5 As shown, by connecting the positive terminals 12 and negative terminals 13 of multiple battery blocks 11 to each other, the total electrical energy that the energy storage device can store can be adjusted. By increasing or decreasing the number of battery blocks 11, the capacity of the energy storage device can be changed at any time. By inserting the connecting blocks 14 of adjacent battery blocks 11 into the connecting slots 15, the fixed battery blocks 11 are stacked and fixed to each other, thus making reasonable use of space and facilitating organization and replacement. A group of negative terminals 13 are connected to the inside of the connecting box 31 through the connecting post 33. Then, the positive terminals 12 of adjacent groups are connected to the connecting box 31 through the long wire 34, thus connecting the adjacent groups of battery blocks 11 to each other. By rotating the cap 51, the fixing screw sleeve 52 is disengaged from the rotating shaft 45. Then, the cap 51 is used to engage the locking block at the top of the rotating shaft 45 into the slot 53. Then, rotating the cap 51 drives the spur gear 42 to rotate. 2. The rack 43 is driven to slide, which in turn drives the connecting rod 44 to slide inside the fixed plate 41. By increasing the distance between the ends of the two connecting rods 44, the distance between the upper slot 23 and the slide groove 24 is increased, so that the device can fix more battery blocks 11. After adjustment, the cover 51 is rotated. Through the connection between the fixed screw sleeve 52 and the rotating shaft 45, the cover 51 presses the partition 46, and the partition 46 presses the spur gear 42, thereby restricting the rotation of the spur gear 42, and thus fixing the height of the device. Then, it is fixed to the top of the shelf 62 through the base plate 21. The long wire 34 used to connect the upper and lower layers can pass through the through hole on the surface of the shelf 62. The first battery block 11 and the last battery block 11 are electrically connected to the power connector 64 through the connecting mechanism 3. The power connector 64 allows the device to supply power to the outside.

[0041] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An adjustable capacity lead-acid battery energy storage device, comprising a battery block (11), characterized in that: The battery block (11) has a positive electrode (12) and a negative electrode (13) fixedly connected to its two sides respectively. A connecting block (14) is fixedly connected to the top of the battery block (11). A connecting groove (15) is opened at the bottom of the battery block (11). The length of the connecting block (14) and the connecting groove (15) on the same side is slightly shorter than that of the battery block (11). Adjacent battery blocks (11) are stacked on each other by inserting the connecting block (14) into the connecting groove (15). Adjacent battery blocks (11) are electrically connected to the positive electrode (12) and the negative electrode (13). The battery blocks (11) are divided into multiple groups by fixing the fixing mechanism (2) and the height adjustment mechanism (4). It also includes a fixing mechanism (2), a connecting mechanism (3) and a height adjustment mechanism (4); the storage mechanism (6) includes a collection cabinet (61), the battery block (11) is set inside the collection cabinet (61), the inside of the collection cabinet (61) is fixedly connected to a shelf (62), multiple sets of the battery blocks (11) are evenly distributed on the top of the shelf (62), the surface of the shelf (62) is provided with through holes, the front of the collection cabinet (61) is hinged with a cabinet door (63), the side of the collection cabinet (61) is fixedly connected to a power connector (64), and the positive electrode (12) and negative electrode (13) at both ends are electrically connected to the power connector (64) through the connecting mechanism (3); The fixing mechanism (2) is used to fix the stacked battery blocks (11); The connecting mechanism (3) is used to connect two adjacent battery blocks (11); The height adjustment mechanism (4) is used to adjust the height of the fixing mechanism (2).

2. The adjustable capacity lead-acid battery energy storage device according to claim 1, characterized in that: The fixing mechanism (2) includes a lower slot (22) and an upper slot (23). The bottom of the battery block (11) is inserted into the interior of the lower slot (22), and the top of the battery block (11) is inserted into the interior of the upper slot (23). The lower slot (22) and the upper slot (23) are fixedly connected by a height adjustment mechanism (4). Sliding grooves (24) are provided on the front and rear sides of the top of the lower slot (22) and the front and rear sides of the top of the upper slot (23).

3. The adjustable capacity lead-acid battery energy storage device according to claim 2, characterized in that: The bottom of the lower slot (22) is fixedly connected to a base plate (21), which is fixedly connected to the top of the shelf (62). The surface of the base plate (21) is provided with bolt holes (25), and the base plate (21) is fixedly connected to the top of the shelf (62) through the bolt holes (25).

4. The adjustable capacity lead-acid battery energy storage device according to claim 1, characterized in that: The connecting mechanism (3) includes a connecting box (31) and a long wire (34). The long wire (34) is fixedly connected to the inside of the bottom positive electrode (12), and the top negative electrode (13) is fixedly connected to the inside of the connecting box (31). Connecting posts (33) are fixedly connected to the left and right sides of the connecting box (31). The connecting posts (33) on both sides are respectively connected to the negative electrode (13) and the long wire (34). Connecting wires (32) are fixedly connected between adjacent connecting posts (33).

5. The adjustable capacity lead-acid battery energy storage device according to claim 3, characterized in that: The height adjustment mechanism (4) includes a connecting rod (44) and a fixed plate (41). The two ends of the connecting rod (44) are slidably connected to the inside of the slide groove (24). There are four connecting rods (44), which are arranged in a circular array and are stacked in two groups according to whether they are collinear. The connecting rod (44) is slidably connected to the inside of the fixed plate (41). A spur gear (42) is rotatably connected to the center of the fixed plate (41). A rack (43) is fixedly connected to the same side of each connecting rod (44). The rack (43) meshes with the spur gear (42). A rotating shaft (45) is fixedly connected to the axis of the spur gear (42). The end of the rotating shaft (45) near the spur gear (42) is threaded. A locking block is fixedly connected to the other end of the rotating shaft (45). A partition (46) is movably connected between the two groups of connecting rods (44) and the outer wall surface of the rotating shaft (45).

6. The adjustable capacity lead-acid battery energy storage device according to claim 5, characterized in that: A cap (51) is inserted into the outside of the rotating shaft (45). A fixing sleeve (52) is provided inside the cap (51). The fixing sleeve (52) is threaded to one end of the rotating shaft (45). A slot (53) is provided at the end of the fixing sleeve (52). The slot (53) cooperates with the locking block at the end of the rotating shaft (45).

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