A lithium battery automatic energy storage device and energy storage method

Abstract

The present invention relates to an automatic lithium battery energy storage device and an energy storage method, comprising an energy storage cabinet and a lithium battery, wherein a control box is installed on the top of the energy storage cabinet, a plurality of support rods are arranged at equal intervals on the energy storage cabinet, a lithium battery is installed on the support rods, a battery shell of the lithium battery is provided with a plurality of side through grooves which are connected to the outside but not to the inside of the battery shell, and a battery module and the side through grooves are arranged alternately; the translation of the side plate is realized by the operation of a first motor, so that it is convenient to connect the pipe sleeve with the long pipe, so as to complete the assembly of the water cooling structure, and at the same time, the two ends of the long pipe are clamped and fixed by the pipe sleeve, so as to realize the clamping and fixing of the lithium battery, and facilitate the loading and unloading operation of the lithium battery.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage devices, and in particular to an automatic lithium battery energy storage device and an energy storage method. Background Art

[0002] Lithium batteries have been booming as a green energy source. They have the advantages of high energy density, long cycle life and low self-discharge rate. According to the changes in electricity prices, lithium batteries are used as a carrier for power storage.

[0003] When storing energy, existing energy storage devices generally dissipate heat from the surface of the lithium battery shell through air cooling and water cooling, and the water cooling structure is pre-assembled on the energy storage cabinet. During the charging and discharging process, heat accumulates between the lithium battery modules. If the heat is not dissipated in time, the normal use of the lithium battery will be affected. At the same time, once a temperature imbalance occurs during the use of the lithium battery, it is very easy to cause a natural condition of the lithium battery. If it is not handled in time, the fire will expand, causing huge economic losses. Summary of the invention

[0004] The problem solved by the present invention is to provide an automatic energy storage device and energy storage method for lithium batteries, which solves the technical problem that when existing energy storage devices are storing energy, the heat is generally dissipated on the surface of the lithium battery shell by air cooling and water cooling, and the water cooling structure is pre-assembled on the energy storage cabinet. During the charging and discharging process, heat is accumulated between the lithium battery modules, and the heat is not dissipated in time, which affects the normal use of the lithium battery. At the same time, once temperature imbalance occurs during the use of the lithium battery, it is very easy to cause the lithium battery to have a natural condition. If it is not handled in time, the fire will expand, causing huge economic losses.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A lithium battery automatic energy storage device, comprising an energy storage cabinet and a lithium battery, wherein a control box is installed on the top of the energy storage cabinet, a plurality of support rods are arranged at equal intervals on the energy storage cabinet, a lithium battery is installed on the support rods, a battery shell of the lithium battery is provided with a plurality of side through grooves which are connected to the outside but not to the inside of the battery shell, and the battery module and the side through grooves are arranged alternately, a long tube is installed through the side through grooves, side plates are slidably installed on both sides of the energy storage cabinet, and the two side plates move in opposite directions at the same speed, a current collector is installed on the inner side of the side plate through a connecting arm, a plurality of pipe sleeves adapted to the long tube are installed on the current collector, and two adjacent current collectors located on the same side of the lithium battery are connected through a circulation pipe;

[0007] A cooling water tank is installed inside the energy storage cabinet, a water pump is installed on the cooling water tank, a first outer tube is installed at the water outlet of the water pump, and the first outer tube is slidably connected to the bottom end of the water inlet pipe, the top end of the water inlet pipe is connected to the collector near the control box inside the energy storage cabinet, a second outer tube is installed on the side wall of the cooling water tank, the second outer tube is slidably connected to the bottom end of the circulation pipe near the cooling water tank, and the long tube and the circulation pipe are arranged and distributed in a continuous bending shape.

[0008] Preferably, the energy storage cabinet is provided with a plurality of adjustment slots, the two ends of the bidirectional threaded rod are located in two adjustment slots at the same height, and the thread directions of the two ends of the bidirectional threaded rod are opposite, the two ends of the bidirectional threaded rod are respectively threadedly connected to the first slider, and the first slider is connected to the side plate.

[0009] Preferably, a sprocket box is installed on the side wall of the energy storage cabinet, and two sprockets are installed in the sprocket box at the end of the bidirectional threaded rod. Two adjacent sprockets in the vertical direction are connected by a chain. A first motor is installed on the sprocket box, and the output end of the first motor is connected to one of the ends of the bidirectional threaded rod.

[0010] Preferably, first adjustment seats are vertically installed on both sides of the energy storage cabinet, and first transmission mechanisms are installed on the tops of the two first adjustment seats. A first one-way threaded rod is installed inside the first adjustment seat, and the first one-way threaded rod is threadedly connected to the second slider outside the second adjustment seat.

[0011] Preferably, a second motor is installed at the end of the second adjustment seat, and a second one-way threaded rod is installed at the output end of the second motor located in the second adjustment seat, and the second one-way threaded rod is threadedly connected to one end of the sliding arm.

[0012] Preferably, the other end of the sliding arm is connected to the third adjustment seat close to the energy storage cabinet end, a third one-way threaded rod is rotatably installed inside the third adjustment seat, the third one-way threaded rod is threadedly connected to the third slider at the end of the protective box away from the energy storage cabinet, and a second transmission mechanism is installed between the two third adjustment seats.

[0013] Preferably, the first transmission mechanism and the second transmission mechanism have the same structure and both include a transmission box. Synchronous wheels are respectively installed inside both ends of the first transmission mechanism and the second transmission mechanism, and the synchronous wheels are respectively connected to the first one-way threaded rod and the third one-way threaded rod. The synchronous wheels are connected through a synchronous belt, and an adjusting motor is installed on the transmission box, and the adjusting motor drives the synchronous wheels to rotate.

[0014] Preferably, the energy storage cabinet is provided with a plurality of smoke exhaust holes, and the smoke exhaust holes are connected to the smoke exhaust pipe through a smoke exhaust valve.

[0015] A method for storing energy in a lithium battery automatic energy storage device, the specific operation steps of the method are as follows:

[0016] Several lithium batteries are installed in the energy storage cabinet. At this time, the lithium battery is electrically connected to the control box, and the control box is connected to the circuit. During the night, the energy storage device enters the charging mode to store electricity. During the day and during power outages, the energy storage device enters the discharge power supply mode.

[0017] The beneficial effects of the present invention are as follows: the translation of the side plate is realized by the operation of the first motor, so that the pipe sleeve is connected to the long pipe, so as to complete the assembly of the water cooling structure, and at the same time, the two ends of the long pipe are clamped and fixed by the pipe sleeve, so as to realize the clamping and fixing of the lithium battery, which is convenient for the loading and unloading operation of the lithium battery;

[0018] The battery shell of the lithium battery is provided with a plurality of side through grooves which are connected to the outside but not to the inside of the battery shell. The side through grooves are provided with long tubes which are arranged in a staggered manner with the battery modules. When water cooling and heat dissipation are performed, the long tubes are used to realize cooling and heat dissipation with the side walls of each battery module. The water cooling structure which runs through the lithium battery facilitates timely dissipation of the heat generated by the battery module, thereby improving the heat dissipation efficiency.

[0019] The second adjustment seat moves up and down on the first adjustment seat, the sliding arm moves on the second adjustment seat, and the protective box moves on the third adjustment seat, thereby realizing multi-directional movement of the protective box, making it convenient to store the protective box at the bottom of the energy storage cabinet. At the same time, when a problem occurs with the lithium battery, the protective box is coordinated with the energy storage cabinet to seal and isolate the lithium battery to avoid the spread of the dangerous situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the first structure of the present invention as a whole;

[0021] Figure 2 It is a schematic diagram of the second structure of the present invention as a whole;

[0022] Figure 3 It is a schematic diagram of the third structure of the present invention as a whole;

[0023] Figure 4 This is a schematic diagram of the fourth structure of the present invention as a whole;

[0024] Figure 5 is a cross-sectional view of a lithium battery of the present invention;

[0025] Figure 6 It is a partial cross-sectional view of the adjustment seat of the present invention.

[0026] Legend:

[0027] 1. Energy storage cabinet; 2. Control box; 3. Support rod; 4. Lithium battery; 5. Side through groove; 6. Long tube; 7. Battery module; 8. Side plate; 9. Connecting arm; 10. Collector seat; 11. Pipe sleeve; 12. Circulation pipe; 13. Cooling water tank; 14. Water pump; 15. First outer tube; 16. Second outer tube; 17. Water inlet pipe; 18. Sprocket box; 19. First motor; 20. Adjustment groove; 21. Two-way threaded rod; 22. First slider; 23. First adjustment seat; 24. First transmission mechanism; 25. Second adjustment seat; 26. Sliding arm; 27. Third adjustment seat; 28. Second transmission mechanism; 29. ​​Protection box; 30. Smoke exhaust valve; 31. Smoke exhaust pipe; 32. First one-way threaded rod; 33. Second one-way threaded rod; 34. Second slider; 35. Second motor; 36. Third one-way threaded rod; 37. Third slider. DETAILED DESCRIPTION

[0028] 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.

[0029] Specific examples are given below.

[0030] See also Figure 1 to Figure 6A lithium battery automatic energy storage device comprises an energy storage cabinet 1 and a lithium battery 4. A control box 2 is installed on the top of the energy storage cabinet 1. A plurality of support rods 3 are arranged at equal intervals on the energy storage cabinet 1. The lithium battery 4 is installed on the support rods 3. A plurality of side through grooves 5 are opened on the battery shell of the lithium battery 4, which are connected to the outside but not to the inside of the battery shell. The battery module 7 and the side through grooves 5 are arranged alternately. A long tube 6 is installed through the side through grooves 5. Side plates 8 are slidably installed on both sides of the energy storage cabinet 1, and the two side plates 8 move in opposite directions at the same speed. A plurality of adjustment grooves 20 are opened on the energy storage cabinet 1. The two ends of a bidirectional threaded rod 21 are located in two adjustment grooves 20 at the same height. The threads at the two ends of the bidirectional threaded rod 21 are in opposite directions. The two ends of the threaded rod 21 are respectively threadedly connected to the first slider 22, and the first slider 22 is connected to the side plate 8. A sprocket box 18 is installed on the side wall of the energy storage cabinet 1. The end of the bidirectional threaded rod 21 is located in the sprocket box 18. Two sprockets are installed in the sprocket box 18. The two adjacent sprockets in the vertical direction are connected by a chain. A first motor 19 is installed on the sprocket box 18, and the output end of the first motor 19 is connected to one of the ends of the bidirectional threaded rod 21. A current collector 10 is installed on the inner side of the side plate 8 through a connecting arm 9. A plurality of pipe sleeves 11 adapted to the long tube 6 are installed on the current collector 10. Two adjacent current collectors 10 on the same side of the lithium battery 4 are connected through a circulation pipe 12. A cooling water tank 13 is installed inside the energy storage cabinet 1. A water pump 14 is installed, and a first outer tube 15 is installed at the water outlet end of the water pump 14, and the first outer tube 15 is slidably connected to the bottom end of the water inlet pipe 17, and the top end of the water inlet pipe 17 is connected to the collector 10 inside the energy storage cabinet 1 near the control box 2, and a second outer tube 16 is installed on the side wall of the cooling water tank 13, and the second outer tube 16 is slidably connected to the bottom end of the circulation pipe 12 near the cooling water tank 13, so that during the movement of the water inlet pipe 17 and the circulation pipe 12, the second outer tube 16 is always connected to the first outer tube 15 and the second outer tube 16, and the long tube 6 and the circulation pipe 12 are arranged and distributed in a continuous bending shape, and the lithium battery 4 is placed on the support rod 3. At this time, the first motor 19 works, and the sprocket and chain in the sprocket box 18 are driven to drive all The bidirectional threaded rod 21 rotates, and the rotation of the bidirectional threaded rod 21 drives the first slider 22 of the threaded connection to move, thereby realizing the adjustment of the distance between the two side plates 8. When the side plates 8 move, the current collecting seat 10 connected to the connecting arm 9 moves synchronously until the pipe sleeve 11 is sleeved in the long tube 6. At this time, while the connection of the cooling pipeline is completed, the two ends of the long tube 6 are clamped and fixed by the pipe sleeve 11, thereby realizing the clamping and fixing of the lithium battery 4. When the lithium battery 4 is charged and discharged, the water pump 14 works to transport the water in the cooling water tank 13 to the water inlet pipe 17, and the water flows back to the cooling water tank 13 through the cooling water path of the circulation pipe 12 and the continuous bending of the long tube 6, so as to circulate and cool the battery module 7 in the lithium battery 4;

[0031] The first motor 19 is operated to realize translation of the side plate 8, so as to facilitate the connection of the tube sleeve 11 with the long tube 6, thereby completing the assembly of the water-cooling structure. At the same time, the two ends of the long tube 6 are clamped and fixed by the tube sleeve 11, so as to realize the clamping and fixing of the lithium battery 4, which is convenient for the loading and unloading operations of the lithium battery 4. The battery shell of the lithium battery 4 is provided with a plurality of side through grooves 5 which are connected to the outside but not to the inside of the battery shell. The side through grooves 5 are installed with long tubes 6 which are staggered with the battery modules 7. When water cooling is performed, cooling and heat dissipation with the side walls of each battery module 7 are realized through the long tubes 6. The water-cooling structure running through the lithium battery 4 facilitates the timely dissipation of the heat generated by the battery module 7, thereby improving the heat dissipation efficiency.

[0032] The first adjustment seats 23 are vertically installed on both sides of the energy storage cabinet 1, and the first transmission mechanism 24 is installed on the top of the two first adjustment seats 23. A first one-way threaded rod 32 is installed inside the first adjustment seat 23, and the first one-way threaded rod 32 is threadedly connected to the second slider 34 on the outer side of the second adjustment seat 25. A second motor 35 is installed at the end of the second adjustment seat 25, and the output end of the second motor 35 is located in the second adjustment seat 25 and a second one-way threaded rod 33 is installed. The second one-way threaded rod 33 is threadedly connected to one end of the sliding arm 26, and the other end of the sliding arm 26 is connected to the end of the third adjustment seat 27 close to the energy storage cabinet 1. A third one-way threaded rod 36 is rotatably installed inside the third adjustment seat 27, and the third one-way threaded rod 36 is threadedly connected to the third slider 37 at the end of the protection box 29 away from the energy storage cabinet 1. A second transmission mechanism 28 is installed between the two third adjustment seats 27. The first transmission mechanism 24 and the second transmission mechanism 28 have the same structure and both include a transmission box. Synchronous wheels are respectively installed inside the two ends of the first transmission mechanism 24 and the second transmission mechanism 28, and the synchronous wheels are respectively connected to the first one-way threaded rod 36 and the third one-way threaded rod 36. The first one-way threaded rod 32 and the third one-way threaded rod 36 are connected, the synchronous wheels are connected through a synchronous belt, and an adjusting motor is installed on the transmission box. The adjusting motor drives the synchronous wheel to rotate. A plurality of smoke exhaust holes are opened on the energy storage cabinet 1. The smoke exhaust holes are connected to the smoke exhaust pipe 31 through the smoke exhaust valve 30. The first one-way threaded rod 32 is rotated by the adjusting motor of the first transmission mechanism 24, and then the first adjustment seat 23 is driven to move up and down by the first slider 22 connected by thread. The second one-way threaded rod 33 is driven to rotate by the second motor 35, and then the sliding arm 26 connected by thread is driven to move, so as to realize the translation of the third adjustment seat 27. The third one-way threaded rod 36 is rotated by the adjusting motor of the second transmission mechanism 28, and then the protective box 29 is driven to translate by the third slider 37 connected by thread. When the lithium battery 4 is in danger, the protective box 29 stored at the bottom of the energy storage cabinet 1 is moved out and covered on the outside of the corresponding lithium battery 4 to avoid affecting the other normal lithium batteries 4, and the corresponding smoke exhaust valve 30 is opened, and the generated smoke is discharged through the smoke exhaust pipe 31;

[0033] The second adjustment seat 25 moves up and down on the first adjustment seat 23, the sliding arm 26 moves on the second adjustment seat 25, and the protection box 29 moves on the third adjustment seat 27, so as to realize the multi-directional movement of the protection box 29, and facilitate the storage of the protection box 29 to the bottom of the energy storage cabinet 1. At the same time, when a problem occurs with the lithium battery 4, the protection box 29 is coordinated with the energy storage cabinet 1 to seal and isolate the lithium battery 4 to avoid the spread of the danger.

[0034] A method for storing energy in a lithium battery automatic energy storage device, the specific operation steps of the method are as follows:

[0035] A plurality of lithium batteries 4 are installed in the energy storage cabinet 1. At this time, the lithium battery 4 is electrically connected to the control box 2, and the control box 2 is connected to the circuit. During the night, the energy storage device enters the charging mode to store electricity. During the day and during power outages, the energy storage device enters the discharge power supply mode.

[0036] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 lithium battery automatic energy storage device, characterized in that: The invention comprises an energy storage cabinet (1) and a lithium battery (4), wherein a control box (2) is installed on the top of the energy storage cabinet (1), a plurality of support rods (3) are arranged at equal intervals on the energy storage cabinet (1), a lithium battery (4) is installed on the support rods (3), a battery shell of the lithium battery (4) is provided with a plurality of side through grooves (5) which are connected to the outside but not to the inside of the battery shell, and the battery module (7) and the side through grooves (5) are arranged alternately, a long tube (6) is installed through the side through grooves (5), side plates (8) are slidably installed on both sides of the energy storage cabinet (1), and the two side plates (8) move in opposite directions at the same speed, a current collector (10) is installed on the inner side of the side plate (8) through a connecting arm (9), a plurality of pipe sleeves (11) which are adapted to the long tube (6) are installed on the current collector (10), and two adjacent current collectors (10) located on the same side of the lithium battery (4) are connected through a circulation pipe (12); A cooling water tank (13) is installed inside the energy storage cabinet (1), a water pump (14) is installed on the cooling water tank (13), a first outer tube (15) is installed at the water outlet of the water pump (14), and the first outer tube (15) is slidably connected to the bottom end of a water inlet pipe (17), the top end of the water inlet pipe (17) is connected to a current collecting seat (10) near a control box (2) inside the energy storage cabinet (1), a second outer tube (16) is installed on the side wall of the cooling water tank (13), the second outer tube (16) is slidably connected to the bottom end of a circulation pipe (12) near the cooling water tank (13), and the long tube (6) and the circulation pipe (12) are arranged and distributed in a continuous bending shape.

2. A lithium battery automatic energy storage device according to claim 1, characterized in that: The energy storage cabinet (1) is provided with a plurality of adjustment slots (20), the two ends of the bidirectional threaded rod (21) are located in two adjustment slots (20) at the same height, and the two ends of the bidirectional threaded rod (21) have opposite thread directions, the two ends of the bidirectional threaded rod (21) are respectively threadedly connected to the first slider (22), and the first slider (22) is connected to the side plate (8).

3. A lithium battery automatic energy storage device according to claim 2, characterized in that: A sprocket box (18) is installed on the side wall of the energy storage cabinet (1); the end of the bidirectional threaded rod (21) is located in the sprocket box (18) and two sprockets are installed therein; two adjacent sprockets in the vertical direction are connected by a chain; a first motor (19) is installed on the sprocket box (18), and the output end of the first motor (19) is connected to the end of one of the bidirectional threaded rods (21).

4. A lithium battery automatic energy storage device according to claim 3, characterized in that: First adjustment seats (23) are vertically mounted on both sides of the energy storage cabinet (1), and first transmission mechanisms (24) are mounted on the tops of the two first adjustment seats (23). A first one-way threaded rod (32) is mounted inside the first adjustment seat (23), and the first one-way threaded rod (32) is threadedly connected to a second slider (34) outside the second adjustment seat (25).

5. A lithium battery automatic energy storage device according to claim 4, characterized in that: A second motor (35) is installed at the end of the second adjustment seat (25); a second one-way threaded rod (33) is installed at the output end of the second motor (35) located in the second adjustment seat (25); and the second one-way threaded rod (33) is threadedly connected to one end of the sliding arm (26).

6. A lithium battery automatic energy storage device according to claim 5, characterized in that: The other end of the sliding arm (26) is connected to the end of the third adjustment seat (27) close to the energy storage cabinet (1); a third one-way threaded rod (36) is rotatably installed inside the third adjustment seat (27); the third one-way threaded rod (36) is threadedly connected to the third sliding block (37) at the end of the protection box (29) away from the energy storage cabinet (1); and a second transmission mechanism (28) is installed between the two third adjustment seats (27).

7. A lithium battery automatic energy storage device according to claim 6, characterized in that: The first transmission mechanism (24) and the second transmission mechanism (28) have the same structure and both include a transmission box. Synchronous wheels are respectively installed inside the two ends of the first transmission mechanism (24) and the second transmission mechanism (28), and the synchronous wheels are respectively connected to the first one-way threaded rod (32) and the third one-way threaded rod (36). The synchronous wheels are connected through a synchronous belt. An adjusting motor is installed on the transmission box, and the adjusting motor drives the synchronous wheels to rotate.

8. A lithium battery automatic energy storage device according to claim 7, characterized in that: The energy storage cabinet (1) is provided with a plurality of smoke exhaust holes, and the smoke exhaust holes are connected to a smoke exhaust pipe (31) via a smoke exhaust valve (30).

9. The energy storage method of a lithium battery automatic energy storage device according to claim 8, characterized in that: The specific operation steps of the energy storage method are as follows: A plurality of lithium batteries (4) are respectively installed in the energy storage cabinet (1). At this time, the lithium batteries (4) are electrically connected to the control box (2), and the control box (2) is connected to the circuit. During the night, the energy storage device enters a charging mode to store electricity. During the day and during power outages, the energy storage device enters a discharge power supply mode.

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