Automatic energy storage device for lithium battery

Abstract

The utility model relates to the technical field of battery energy storage, in particular to a lithium battery automatic energy storage device which comprises a shell, a cooling pump is arranged on the outer side of the shell, input pipes are fixedly connected to a plurality of output ends of the cooling pump, and a plurality of high-temperature-resistant assemblies are arranged in the shell. The high-temperature-resistant assembly comprises an air conveying pipe fixedly connected with the side face of the inner wall of the shell, the air conveying pipe communicates with the input pipe, a plurality of air conveying holes are formed in the outer side of the air conveying pipe, a heat dissipation plate is slidably connected to the top of the air conveying pipe, and an empty groove is formed in the inner side of the heat dissipation plate. Through the arrangement of a cooling pump, an input pipe, a gas conveying pipe, a gas conveying hole, a communicating hole, a heat dissipation plate and an empty groove, after the heat dissipation plate provided with lithium batteries is stably placed, the empty groove is filled with condensed gas, the heat dissipation plate is in a low-temperature state, each lithium battery can be directly cooled, the cooling effect is good, and the situation that heat cannot be dissipated, and the heat dissipation effect is poor is avoided. And the lithium battery is damaged due to expansion.

Description

Technical Field

[0001] The utility model relates to the technical field of battery energy storage, and particularly relates to a lithium battery automatic energy storage device. Background Technique

[0002] Lithium batteries are rechargeable batteries with high energy density and are widely used in fields such as portable electronic devices, electric vehicles, and energy storage systems. The working principle of lithium batteries is based on the movement of lithium ions between the positive and negative electrodes. During discharge, lithium ions move from the negative electrode (usually graphite) to the positive electrode (which can be various different materials such as lithium cobaltate, lithium manganate, nickel cobalt manganese ternary materials, etc.), and a reduction reaction occurs on the positive electrode; during charging, lithium ions move in the reverse direction, and an oxidation reaction occurs on the negative electrode. Lithium batteries can store more energy, have a smaller volume and weight, and under appropriate conditions, lithium batteries can be charged and discharged thousands of times. Lithium batteries support fast charging and can be fully charged in a relatively short time. Lithium batteries do not contain harmful substances such as mercury and cause less pollution to the environment. In the case of improper use or manufacturing defects, lithium batteries may undergo thermal runaway or even explosion. Compared with some other types of batteries, the cost of lithium batteries is relatively high. In a low-temperature environment, the discharge performance of lithium batteries will decline. For example, in mobile phones, laptops, tablets, etc., lithium batteries are the most commonly used battery type in electric vehicles. For peak power regulation of the power grid and storage of renewable energy, lithium batteries are different from lithium-ion batteries. The former is a primary battery, and the latter is a rechargeable battery. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high requirements for the environment. Therefore, lithium batteries have not been applied for a long time. With the development of microelectronics technology at the end of the 20th century, the use of lithium batteries has entered the large-scale practical stage. In order to store lithium batteries safely and make them convenient to store and use, an energy storage device is needed.

[0003] An existing energy storage device for a lithium battery with the authorized patent number CN221239707U includes a plurality of legs. A square tube is arranged between the legs. A fire extinguishing component is arranged on one side of each leg. A disassembly component is arranged on the upper surface of the legs. A heat dissipation component is arranged between the legs. A plurality of fixed tubes are arranged on the upper surface of the legs. Two heat dissipation plates are arranged between the two sides of each fixed tube. Emergency disassembly and assembly components are arranged on the other two sides of each fixed tube. A C-shaped tube is arranged on each fixed tube. An alarm component is arranged between the C-shaped tubes. A top plate is arranged on the upper surface of the C-shaped tube. The fire extinguishing component includes a water tank. The water tank is arranged on one side of the leg. A first water outlet pipe and a second water outlet pipe are arranged on the water tank. A bracket is arranged on the water tank. The other side of the second water outlet pipe is arranged on the bracket. The other side of the first water outlet pipe is arranged on the outer wall of the C-shaped tube. An infrared switch controller is installed on the outer wall of the C-shaped tube. A square water pipe is arranged on the inner wall of the C-shaped tube. A plurality of nozzles are arranged on the square water pipe.

[0004] There is a lithium battery energy storage device with the authorized patent number CN219553767U, including a protective box body, a protective box cover and a lithium battery module. The protective box cover is arranged at the opening of the protective box body. A mold base for fixing the lithium battery module is arranged in the protective box body. The lithium battery module is connected to the mold base. An air circulation area for heat conduction is formed between the mold base and the inner wall of the protective box body. A plurality of heat dissipation air outlets are opened on the end wall of the protective box body, and each heat dissipation air outlet is communicated with the inside of the protective box body. A heat dissipation fan is arranged inside the protective box body.

[0005] Regarding the above related technologies, the defect of the existing energy storage device is that the lithium battery energy storage device generates heat during the charging and discharging processes. Due to the relatively compact arrangement of multiple lithium batteries, it is not convenient for heat to dissipate, resulting in the expansion and damage of the lithium batteries. Therefore, the present utility model provides a lithium battery automatic energy storage device. Summary of the Utility Model

[0006] The purpose of this application is to provide a lithium battery automatic energy storage device to solve the problem proposed in the above background technology that the lithium battery energy storage device generates heat during the charging and discharging processes. Due to the relatively compact arrangement of multiple lithium batteries, it is not convenient for heat to dissipate, resulting in the expansion and damage of the lithium batteries.

[0007] To achieve the above purpose, this application provides the following technical solution: A lithium battery automatic energy storage device includes a housing. A cooling pump is arranged on the outer side of the housing. A plurality of output ends of the cooling pump are fixedly connected with input pipes. A plurality of high-temperature prevention components are arranged inside the housing; each high-temperature prevention component includes an air delivery pipe fixedly connected to the side surface of the inner wall of the housing. The air delivery pipe is communicated with the input pipe. A plurality of air delivery holes are opened on the outer side of the air delivery pipe. A heat dissipation plate is slidably connected to the top of the air delivery pipe. An empty groove is opened on the inner side of the heat dissipation plate. A plurality of communication holes communicating with the air delivery holes are opened on the outer side of the heat dissipation plate, so that the heat dissipation plate is in a low-temperature state, capable of cooling each lithium battery to avoid the failure of heat dissipation.

[0008] Preferably, a plurality of grooves are opened on the inner side of the heat dissipation plate, and copper plates are arranged at the bottom of the inner walls of the grooves, which have good heat conduction performance and accelerate heat dissipation.

[0009] Preferably, a plurality of stoppers are fixedly connected to the side surface of the inner wall of the housing, and a limiting block adapted to the stoppers is fixedly connected to the top edge position of the heat dissipation plate to prevent the heat dissipation plate from sliding out of the housing during the sliding process.

[0010] Preferably, a plurality of limiting rods are fixedly connected to the inner wall side of the housing, and a limiting ring is hinged to the top of the heat dissipation plate. The limiting ring is connected to the heat dissipation plate through a torsion spring.

[0011] Preferably, a rubber ring is fixedly connected to the inner wall side of the limiting ring, and the rubber ring is adapted to the limiting rod.

[0012] Preferably, a hatch is provided on the outer side of the housing, and a plurality of temperature sensors are provided on the inner wall side of the housing.

[0013] Preferably, a fixing block is fixedly connected to the outer side of the housing, a hydraulic push rod is fixedly connected to the bottom of the fixing block, an output end of the hydraulic push rod is fixedly connected to a sliding frame, and a plurality of universal wheels are provided at the bottom of the sliding frame.

[0014] Preferably, a fixing frame is fixedly connected to the outer side of the housing, and the sliding frame is slidably connected to the inner wall side of the fixing frame.

[0015] Preferably, the heat dissipation plate is rectangularly arranged, and the air delivery pipe is annularly arranged outside the heat dissipation plate.

[0016] Preferably, an epoxy resin coating is applied to the outer side of the housing, and the universal wheels are made of polyurethane elastomer.

[0017] In summary, the technical effects and advantages of the present utility model are as follows:

[0018] 1. In the present utility model, through the settings of the cooling pump, input pipe, air delivery pipe, air delivery holes, communication holes, heat dissipation plate, and empty slots, after the heat dissipation plate installed with lithium batteries is placed stably, the condensation gas fills the empty slots, and the heat dissipation plate is in a low-temperature state, which can directly cool each lithium battery, with good cooling effect, avoiding the situation that heat cannot be dissipated and the lithium batteries expand and are damaged.

[0019] 2. In the present utility model, through the settings of the hydraulic push rod, sliding frame, a plurality of universal wheels, and fixing frame, the housing can be adjusted between the static and movable states.

[0020] 3. In the present utility model, through the cooperative settings of the limiting ring, rubber ring, and limiting rod, the limiting ring, rubber ring, and limiting rod are engaged to keep the heat dissipation plate stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 This is the schematic diagram of the first - perspective axonometric structure of the present utility model;

[0023] Figure 2 This is the schematic diagram of the second - perspective axonometric structure of the present utility model;

[0024] Figure 3 This is the schematic diagram of the limiting rod, limiting ring and rubber ring in the present utility model;

[0025] Figure 4 This is the schematic diagram of the communication hole and the empty groove in the present utility model;

[0026] Figure 5 This is the schematic diagram of the cooling pump, input pipe and gas transmission pipe in the present utility model;

[0027] In the figure: 1. Outer shell; 2. Hatch; 3. Cooling pump; 4. Input pipe; 5. Fixed frame; 6. Heat - dissipation plate; 7. Groove; 8. Fixed block; 9. Hydraulic push rod; 10. Sliding rack; 11. Universal wheel; 12. Gas transmission pipe; 13. Gas transmission hole; 14. Limiting rod; 15. Limiting ring; 16. Rubber ring; 17. Limiting block; 18. Stop block; 19. Communication hole; 20. Empty groove; 21. Temperature sensor. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms in the present utility model can be understood according to specific situations.

[0030] Embodiment 1: Refer to Figures 1-5An automatic energy storage device for a lithium battery shown in the figure includes a housing 1. A cooling pump 3 is arranged on the outer side of the housing 1. A plurality of output ends of the cooling pump 3 are fixedly connected with input pipes 4. A plurality of high-temperature prevention components are arranged in the housing 1. The high-temperature prevention components include an air delivery pipe 12 fixedly connected to the side surface of the inner wall of the housing 1. The air delivery pipe 12 is communicated with the input pipe 4. A plurality of air delivery holes 13 are formed on the outer side of the air delivery pipe 12. A heat dissipation plate 6 is slidably connected to the top of the air delivery pipe 12. An empty groove 20 is formed on the inner side of the heat dissipation plate 6. A plurality of communication holes 19 communicated with the air delivery holes 13 are formed on the outer side of the heat dissipation plate 6. After the heat dissipation plate 6 containing the lithium battery is stably placed, the condensed gas can sequentially enter the empty groove 20 through the input pipe 4, the air delivery pipe 12, the air delivery holes 13, and the communication holes 19, so that the heat dissipation plate 6 is kept in a low-temperature state. A plurality of grooves 7 are formed on the inner side of the heat dissipation plate 6. A copper plate is arranged at the bottom of the inner wall of the groove 7 to better transfer heat. A plurality of stoppers 18 are fixedly connected to the side surface of the inner wall of the housing 1. A limiting block 17 adapted to the stopper 18 is fixedly connected to the top edge position of the heat dissipation plate 6 to prevent the heat dissipation plate 6 from sliding out of the housing 1 during the sliding process. A plurality of limiting rods 14 are fixedly connected to the side surface of the inner wall of the housing 1. A limiting ring 15 is hingedly connected to the top of the heat dissipation plate 6. The limiting ring 15 is connected to the heat dissipation plate 6 through a torsion spring. A rubber ring 16 is fixedly connected to the side surface of the inner wall of the limiting ring 15. The rubber ring 16 is adapted to the limiting rod 14. Through the engagement of the limiting ring 15, the rubber ring 16 and the limiting rod 14, the heat dissipation plate 6 is conveniently limited and fixed.

[0031] In this embodiment, the heat dissipation plate 6 is dragged along the side surface of the inner wall of the housing 1 and slides out. The stopper 18 blocks the limiting block 17 to prevent the heat dissipation plate 6 from sliding out of the housing 1. The lithium battery is placed in the groove 7, and the heat dissipation plate 6 is reset. The limiting ring 15 drives the rubber ring 16 to be stuck on the outer side of the limiting rod 14 under the action of the torsion spring, so that the heat dissipation plate 6 is kept stable. The cooling pump 3 is controlled to introduce the condensed gas into the air delivery pipe 12 through the input pipe 4. The air delivery pipe 12 guides the condensed gas into the corresponding plurality of communication holes 19 through a plurality of air delivery holes 13, so that the condensed gas fills the empty groove 20, and the whole heat dissipation plate 6 is in a low-temperature state to cool the lithium battery. And through the arrangement of a plurality of temperature sensors 21, the temperature change at different heights inside the housing 1 can be monitored, improving the safety factor.

[0032] Example Two: Refer to Figures 1-5, based on the same concept as the first embodiment above, this embodiment also proposes that a hatch 2 is provided on the outer side of the housing 1, and a plurality of temperature sensors 21 are provided on the inner wall side of the housing 1 to facilitate monitoring the temperature inside the housing 1; a fixed block 8 is fixedly connected to the outer side of the housing 1, a hydraulic push rod 9 is fixedly connected to the bottom of the fixed block 8, the output end of the hydraulic push rod 9 is fixedly connected to a sliding frame 10, and a plurality of universal wheels 11 are provided at the bottom of the sliding frame 10, enabling the device to be adjusted from a static state to a movable state; a fixed frame 5 is fixedly connected to the outer side of the housing 1, the sliding frame 10 is slidably connected to the inner wall side of the fixed frame 5, and the fixed frame 5 plays a limiting role on the sliding frame 10.

[0033] In this embodiment, the hydraulic push rod 9 is controlled to drive the sliding frame 10 and the plurality of universal wheels 11 to move downward until the universal wheels 11 slide out of the fixed frame 5 to support the housing 1, facilitating the movement of the housing 1 to a suitable position.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lithium battery automatic energy storage device, comprising a housing (1), characterized in that: A cooling pump (3) is arranged outside the housing (1), multiple output ends of the cooling pump (3) are fixedly connected to input pipes (4), and multiple high-temperature protection components are arranged inside the housing (1); The high temperature protection component comprises an air delivery pipe (12) fixedly connected to the inner wall side of the housing (1), the air delivery pipe (12) being connected to the input pipe (4), a plurality of air delivery holes (13) being provided on the outer side of the air delivery pipe (12), a heat sink (6) being slidably connected to the top of the air delivery pipe (12), a hollow groove (20) being provided on the inner side of the heat sink (6), and a plurality of connecting holes (19) being provided on the outer side of the heat sink (6) and being connected to the air delivery holes (13).

2. A lithium battery automatic energy storage device according to claim 1, characterized in that: A plurality of grooves (7) are provided on the inner side of the heat dissipation plate (6), and a copper plate is provided at the bottom of the inner wall of the groove (7).

3. A lithium battery automatic energy storage device according to claim 2, characterized in that: A plurality of stoppers (18) are fixedly connected to the inner wall side of the housing (1), and a limiting block (17) adapted to the stoppers (18) is fixedly connected to the top edge of the heat sink (6).

4. A lithium battery automatic energy storage device according to claim 3, characterized in that: A plurality of limiting rods (14) are fixedly connected to the inner wall side of the housing (1), and a limiting ring (15) is hingedly connected to the top of the heat sink (6), and the limiting ring (15) is connected to the heat sink (6) via a torsion spring.

5. A lithium battery automatic energy storage device according to claim 4, characterized in that: A rubber ring (16) is fixedly connected to the inner wall side of the limiting ring (15), and the rubber ring (16) is adapted to the limiting rod (14).

6. A lithium battery automatic energy storage device according to claim 5, characterized in that: A hatch (2) is arranged on the outer side of the outer shell (1), and a plurality of temperature sensors (21) are arranged on the inner wall side of the outer shell (1).

7. A lithium battery automatic energy storage device according to claim 6, characterized in that: A fixed block (8) is fixedly connected to the outer side of the housing (1), a hydraulic push rod (9) is fixedly connected to the bottom of the fixed block (8), an output end of the hydraulic push rod (9) is fixedly connected to a sliding frame (10), and a plurality of universal wheels (11) are arranged at the bottom of the sliding frame (10).

8. A lithium battery automatic energy storage device according to claim 7, characterized in that: A fixed frame (5) is fixedly connected to the outer side of the housing (1), and the sliding frame (10) is slidably connected to the inner wall side of the fixed frame (5).

9. A lithium battery automatic energy storage device according to claim 8, characterized in that: The heat sink (6) is arranged in a rectangular shape, and the air delivery pipe (12) is arranged in a ring shape on the outside of the heat sink (6).

10. A lithium battery automatic energy storage device according to claim 9, characterized in that: The outer side of the housing (1) is coated with an epoxy resin coating, and the universal wheel (11) is made of polyurethane elastomer.

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