Communication base station energy storage device based on boost battery

Abstract

The invention relates to the technical field of energy storage devices, and discloses a communication base station energy storage device based on a boost battery, which comprises an energy storage case, battery pack fixing corner brackets are fixedly arranged in the energy storage case at intervals, and the battery pack fixing corner brackets are used for fixing an energy storage battery pack for storing energy; the circulating turbine fan is fixed to the upper end of the energy storage machine box and communicates with an inner cavity of the energy storage machine box, an air suction disc is fixedly arranged in the energy storage machine box and used for being in butt joint and communicating with the circulating turbine fan, and a plurality of air suction openings are formed in the lower end face of the air suction disc at intervals; and a rectifying cavity connected with the upper circulating pipe is fixedly arranged at the upper end of the circulating turbofan. A low-temperature refrigerant is drained to the lower portion of the energy storage battery pack to be circulated through the plate-shaped cast hollow cooling plate formed through casting and the matched liquid cooling temperature control unit, and then heat convection circulation is formed through the circulating turbine fan and the pipeline matched with the upper circulating pipe and the lower circulating pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage devices, and in particular to a communication base station energy storage device based on a boost battery. Background Art

[0002] Traditional temperature control generally includes air cooling or liquid cooling. Air cooling uses thermodynamic convection to accelerate temperature diffusion through convection of different temperature differences and mechanical air supply to achieve cooling. The disadvantage of such cooling is slow temperature control. Especially for energy storage batteries with fast temperature rise, the air cooling effect cannot meet the demand for fast temperature control, which often causes the battery to operate at a temperature higher than the appropriate temperature, and the air cooling system is always in a high-load operation state. Another type of liquid cooling through refrigerant is to directly wrap the heat-generating components through metal pipes to quickly absorb heat through heat transfer in thermodynamics. Compared with air cooling, liquid cooling has much better cooling effect and temperature control speed, but for lithium batteries, too low temperature will affect its charging efficiency. Liquid cooling requires the liquid cooling pipe to be wrapped around the battery to achieve a uniform and rapid cooling effect. However, this requires the manufacture of very tight and complex liquid cooling pipes, and a series of supporting processes such as mold opening, which will result in very high costs. If the order volume of the energy storage device is not large, it is likely to result in losses. However, if the liquid cooling pipe is only attached to one side of the battery, it is easy to cause a large temperature difference between the two ends of the battery, affecting the battery life and safety. Therefore, this case is proposed based on the cost, heat conduction efficiency, and the comprehensive impact on battery safety and energy storage efficiency. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the above problems, a communication base station energy storage device based on a boost battery is provided, which solves the above problems.

[0004] The present invention solves the technical problem by adopting the following technical solutions: A communication base station energy storage device based on a boost battery includes an energy storage chassis, in which battery pack fixing angle brackets are fixedly arranged at intervals inside the energy storage chassis for fixing the energy storage battery pack mounted thereon for energy storage, and further includes a circulating turbine fan fixed at the upper end of the energy storage chassis and connected to the inner cavity of the energy storage chassis, an air suction disc is fixedly arranged inside the energy storage chassis for docking and connecting with the circulating turbine fan, a plurality of air suction ports are spaced apart on the lower end surface of the air suction disc, a rectifying cavity connected to an upper circulation pipe is fixedly arranged at the upper end of the circulating turbine fan, the circulating turbine fan is used to extract air from the energy storage chassis and re-introduce air from the bottom of the energy storage chassis through a lower circulation pipe connected to the upper circulation pipe, and a circulating turbine fan is fixedly arranged at the lower end of the energy storage chassis An air distribution plate is provided for matching and communicating with the lower circulation pipe and having a plurality of air supply ports spaced apart on its upper end face, which is conducive to uniform action of wind on each of the energy storage battery packs. It also includes a liquid-cooled temperature control unit arranged in the first independent unit cavity. An integrated partition is fixed between the energy storage battery packs. The refrigerant pipe led out of the liquid-cooled temperature control unit is connected in series in the integrated partition and is also provided with a joint for connecting and fixing the cast hollow cooling plate. Two matching refrigerant pipe joints are provided on the cast hollow cooling plate. A gap is provided between the cast hollow cooling plate and the energy storage battery pack. The refrigerant of the liquid-cooled temperature control unit is led out from the main pipeline and passes through a branch pipeline arranged in the integrated partition and then flows to the cast hollow cooling plate to form a circulation.

[0005] In one embodiment, a heat-insulating sponge block is fixedly provided on the inner wall of the energy storage chassis to reduce the impact of external temperature on the inside of the energy storage chassis and improve the stability and accuracy of temperature control. Compared with some open designs, the closed design can better keep the battery in a relatively constant temperature state. At the same time, the workload of the liquid-cooled temperature control unit and the circulating turbine fan is also more stable, which is beneficial to improving the life of the equipment.

[0006] In one embodiment, the aperture of the air suction port located on the left and right sides of the air suction plate is larger than the aperture of the air suction port located in the middle of the air suction plate. In this way, the air flow of the air suction port at various positions close to the circulating turbine fan and far away from the circulating turbine fan is more balanced and uniform through the principle of wind pressure, thereby improving the uniformity of overall temperature control in the energy storage chassis.

[0007] In one embodiment, the air supply outlets provided on the air distribution disk are matched therewith, and the apertures of the air supply outlets located on both sides are larger than the aperture of the air supply outlets located in the middle.

[0008] In one embodiment, a plurality of through-air openings are provided at intervals on the cast hollow cooling plate, so that air can pass through quickly and form more contact area, thereby improving the heat exchange efficiency of heat convection.

[0009] In one embodiment, a sealed independent second independent unit cavity is provided below the first independent unit cavity in the energy storage case, and a replaceable humidity control box is provided in the second independent unit cavity, wherein the upper circulation pipe and the lower circulation pipe are connected to the humidity control box to form a one-way wind passage, and the humidity control box is filled with hygroscopic particles for controlling the humidity of the air in the energy storage case.

[0010] In one embodiment, the wind pressure regulator includes two symmetrical left and right gap control plates and a plurality of U-shaped thermal deformation bodies embedded in the middle of the gap control plates. The four-side gaps between the gap control plates are sealed by elastic rubber sheets glued to the sides of the gap control plates. The two ends of the U-shaped thermal deformation bodies are fixed to the inner walls of the gap control plates. After being heated, the U-shaped thermal deformation bodies expand to expand the distance between the gap control plates, thereby reducing the ventilation gap in the middle of the energy storage battery pack, thereby increasing the wind pressure and wind speed there to achieve the effect of improving the wind heat convection cooling.

[0011] In one embodiment, the U-shaped thermal deformation body is made of silver-cadmium alloy.

[0012] The advantages and positive effects of the present invention are: The present application is realized by adopting a generally cast plate-shaped cast hollow cooling plate and a matching liquid cooling temperature control unit to guide the low-temperature refrigerant to the lower part of the energy storage battery pack for circulation, and then a heat convection circulation is formed through the circulating turbine fan and the pipes matching the upper circulation pipe and the lower circulation pipe, so that the air quickly passes through the cast hollow cooling plate to form convection around the energy storage battery pack after cooling. Compared with traditional air cooling, the device can provide heat convection with a larger temperature difference and then transfer the heat to the liquid cooling temperature control unit through the refrigerant, and consume the heat energy to the external air through the liquid cooling temperature control unit. The air in the energy storage chassis is in internal circulation throughout the whole process, which can improve the heat exchange efficiency and reduce the influence of the external temperature on the energy storage battery pack, making the temperature control component more accurate. The air is dried by a humidity control box arranged in the internal circulation air path to reduce the air humidity and avoid affecting the battery; In addition, the air suction plate and the air distribution plate are set with gradually varying apertures so that the air flow rate in each part of the energy storage chassis is uniform, and the structure is simple and reasonable; In addition, the gap on the side of the energy storage battery pack is adjusted by the wind pressure regulator arranged on the side of the integrated partition. The principle is that when the temperature of a unit of the energy storage battery pack is high, the heat causes the U-shaped thermal deformation body to expand, thereby increasing the lateral thickness of the wind pressure regulator, so that the gap on the left and right sides of the energy storage battery pack is reduced, so that the wind pressure at this place becomes larger, the flow rate becomes larger, and the cooling speed is increased; The circulating air and distributed modular cast hollow cooling plates in this application improve the cooling effect more evenly, eliminating the disadvantages of the original air cooling device that the temperature cools quickly near the air outlet and slowly away from the air outlet, and is more in line with the core requirement of battery temperature control, namely uniform temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 2 is a schematic diagram of the internal structure of the present invention (omitting 29); Figure 3 2 is a schematic diagram of the internal structure of the present invention (omitting 29); Figure 4 It is a schematic diagram of the internal structure of the present invention (29 is omitted).

[0015] The marks in the accompanying drawings are described as follows: 10. Energy storage chassis; 11. Circulating turbine fan; 12. Rectifier cavity; 13. Upper circulation pipe; 14. First independent unit cavity; 15. Liquid-cooled temperature control unit; 16. Humidity control box; 17. Second independent unit cavity; 18. Lower circulation pipe; 19. Air distribution disk; 20. Cast hollow cooling plate; 21. Energy storage battery pack; 22. Battery pack fixing angle bracket; 23. Air suction disk; 24. Refrigerant pipe joint; 25. Integrated partition; 26. Air supply port; 27. Air through port; 28. Air suction port; 29. ​​Air pressure regulator; 30. Gap control plate; 31. U-shaped thermal deformation body. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention. The embodiments of the present invention will be described in further detail with reference to the accompanying drawings: like Figure 1-4As shown, a communication base station energy storage device based on a boost battery described in the present invention includes an energy storage chassis 10, in which a battery pack fixing angle bracket 22 is fixedly provided at intervals in the energy storage chassis 10 for fixing an energy storage battery pack 21 mounted for energy storage, and further includes a circulating turbine fan 11 fixed at the upper end of the energy storage chassis 10 and connected to the inner cavity of the energy storage chassis 10, a suction plate 23 is fixedly provided in the energy storage chassis 10 for docking and communicating with the circulating turbine fan 11, and a plurality of suction ports 28 are spaced apart on the lower end surface of the suction plate 23, a rectifying cavity 12 connected to an upper circulation pipe 13 is fixedly provided at the upper end of the circulating turbine fan 11, the circulating turbine fan 11 is used to extract air from the energy storage chassis 10, and re-introduce air from the bottom of the energy storage chassis 10 through a lower circulation pipe 18 connected to the upper circulation pipe 13, and in the energy storage chassis 1 0 is fixedly provided with an air distribution plate 19 at the lower end thereof, which is used to match and communicate with the lower circulation pipe 18 and has a plurality of air supply ports 26 at intervals on its upper end surface, so that the wind acts evenly on each of the energy storage battery packs 21, and also includes a liquid-cooled temperature control unit 15 arranged in the first independent unit cavity 14, and an integrated partition 25 is fixedly provided between the energy storage battery packs 21, and the refrigerant pipe led out of the liquid-cooled temperature control unit 15 is connected in series in the integrated partition 25 and is also provided with a joint for connecting and fixing the cast hollow cooling plate 20, and the cast hollow cooling plate 20 is provided with two matching refrigerant pipe joints 24, and a gap is provided between the cast hollow cooling plate 20 and the energy storage battery pack 21, and the refrigerant of the liquid-cooled temperature control unit 15 is led out from the main pipeline and then flows through the branch pipeline arranged in the integrated partition 25 to the cast hollow cooling plate 20 to form a circulation.

[0017] In one embodiment, a heat-insulating sponge block is fixedly provided on the inner wall of the energy storage box 10 to reduce the influence of the external temperature on the inside of the energy storage box 10 and improve the stability and accuracy of temperature control. Compared with some open designs, the closed design can better keep the battery in a relatively constant temperature state. At the same time, the workload of the liquid-cooled temperature control unit 15 and the circulating turbine fan 11 is also more stable, which is beneficial to improving the life of the equipment.

[0018] In one embodiment, the aperture of the air suction port 28 located on the left and right sides of the air suction plate 23 is larger than the aperture of the air suction port 28 located in the middle of the air suction plate 23. In this way, the air flow of the air suction port 28 at various positions close to the circulating turbine fan 11 and far away from the circulating turbine fan 11 is more balanced and uniform through the wind pressure principle, thereby improving the uniformity of the overall temperature control in the energy storage chassis 10.

[0019] In one embodiment, the air supply outlets 26 provided on the air distribution plate 19 are matched therewith, and the apertures of the air supply outlets 26 located on both sides are larger than the aperture of the air supply outlets 26 located in the middle.

[0020] In one embodiment, a plurality of through-air openings 27 are provided at intervals on the cast hollow cooling plate 20, so that air can pass through quickly and form more contact area, thereby improving the heat exchange efficiency of heat convection.

[0021] In one embodiment, a sealed independent second independent unit cavity 17 is provided below the first independent unit cavity 14 in the energy storage box 10, and a replaceable humidity control box 16 is provided in the second independent unit cavity 17, wherein the upper circulation pipe 13 and the lower circulation pipe 18 are connected to the humidity control box 16 to form a one-way wind passage, and the humidity control box 16 is filled with hygroscopic particles for controlling the humidity of the air in the energy storage box 10.

[0022] In one embodiment, the wind pressure regulator 29 includes two symmetrical left and right control plates 30 and a plurality of U-shaped thermal deformation bodies 31 embedded in the middle of the control plates 30. The four-side gaps between the control plates 30 are sealed by elastic rubber sheets glued to the sides of the control plates 30. The two ends of the U-shaped thermal deformation bodies 31 are fixed to the inner walls of the control plates 30. After being heated, the U-shaped thermal deformation bodies 31 expand to expand the spacing between the control plates 30, thereby reducing the ventilation gap in the middle of the energy storage battery pack 21, thereby increasing the wind pressure and wind speed there to achieve the effect of improving the wind heat convection cooling.

[0023] In one embodiment, the U-shaped thermal deformation body 31 is made of silver-cadmium alloy.

[0024] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A communication base station energy storage device based on a boost battery, comprising an energy storage chassis (10), characterized in that: A battery pack fixing angle frame (22) is fixedly provided at intervals in the energy storage box (10) for fixing an energy storage battery pack (21) mounted thereon for energy storage. The energy storage box (10) also includes a circulating turbine fan (11) fixed at the upper end of the energy storage box (10) and connected to the inner cavity of the energy storage box (10). An air suction plate (23) is fixedly provided in the energy storage box (10) for docking and connecting with the circulating turbine fan (11). A plurality of air suction ports (28) are provided at intervals on the lower end surface of the air suction plate (23). The upper end of the circulating turbine fan (11) is fixedly provided with a rectifying chamber (12) connected to an upper circulating pipe (13). The circulating turbine fan (11) is used to extract air from the energy storage box (10) and to re-introduce air from the bottom of the energy storage box (10) through a lower circulating pipe (18) connected to the upper circulating pipe (13). A plurality of air chambers (12) are fixedly provided at the lower end of the energy storage box (10) for matching and communicating with the lower circulating pipe (18) and are provided at intervals on the upper end surface thereof. The air distribution plate (19) of the air supply port (26) is conducive to the uniform effect of wind on each of the energy storage battery groups (21), and also includes a liquid cooling temperature control unit (15) arranged in the first independent unit cavity (14), an integrated partition (25) is fixedly provided between the energy storage battery groups (21), the refrigerant pipe led out of the liquid cooling temperature control unit (15) is connected in series in the integrated partition (25) and a joint is also provided for connecting and fixing the cast hollow cooling plate (20), the cast hollow The cooling plate (20) is provided with two matching refrigerant pipe joints (24), and a gap is provided between the cast hollow cooling plate (20) and the energy storage battery pack (21). The refrigerant of the liquid-cooled temperature control unit (15) is drawn out from the main pipeline and then flows through a branch pipeline arranged in the integrated partition (25) to the cast hollow cooling plate (20) to form a circulation. The integrated partition (25) is also provided with a wind pressure regulator (29) arranged at the gap between it and the energy storage battery pack (21).

2. A communication base station energy storage device based on a boost battery according to claim 1, characterized in that: The inner wall of the energy storage box (10) is fixedly provided with a heat-insulating sponge block for reducing the influence of the external temperature on the inside of the energy storage box (10) and improving the stability and accuracy of temperature control. Compared with some open designs, the closed design can better keep the battery in a relatively constant temperature state. At the same time, the working load of the liquid-cooled temperature control unit (15) and the circulating turbine fan (11) is also more stable, which is conducive to improving the life of the equipment.

3. A communication base station energy storage device based on a boost battery according to claim 2, characterized in that: The aperture of the air suction port (28) located on the left and right sides of the air suction plate (23) is larger than the aperture of the air suction port (28) located in the middle of the air suction plate (23). In this way, the air flow of the air suction port (28) at various positions close to the circulating turbine fan (11) and far away from the circulating turbine fan (11) is more balanced and uniform through the wind pressure principle, thereby improving the uniformity of the overall temperature control in the energy storage chassis (10).

4. A communication base station energy storage device based on a boost battery according to claim 3, characterized in that: Matching therewith, the air supply ports (26) provided on the air distribution plate (19) have apertures of the air supply ports (26) located on both sides larger than the aperture of the air supply ports (26) located in the middle.

5. A communication base station energy storage device based on a boost battery according to claim 4, characterized in that: The cast hollow cooling plate (20) is provided with a plurality of through-air openings (27) at intervals, so that air can pass through quickly and form a larger contact area, thereby improving the heat exchange efficiency of heat convection.

6. A communication base station energy storage device based on a boost battery according to claim 5, characterized in that: A sealed independent second independent unit cavity (17) is also provided below the first independent unit cavity (14) in the energy storage case (10), and a replaceable humidity control box (16) is provided in the second independent unit cavity (17), wherein the upper circulation pipe (13) and the lower circulation pipe (18) are connected to the humidity control box (16) to form a one-way wind passage, and the humidity control box (16) is filled with hygroscopic particles for controlling the humidity of the air in the energy storage case (10).

7. A communication base station energy storage device based on a boost battery according to any one of claims 1 to 6, characterized in that: The wind pressure regulator (29) comprises two symmetrical gap control plates (30) on the left and right and a plurality of U-shaped thermal deformation bodies (31) embedded in the middle of the gap control plates (30); the gaps on the four sides between the gap control plates (30) are sealed by elastic rubber sheets glued to the sides of the gap control plates (30); the two ends of the U-shaped thermal deformation bodies (31) are fixed to the inner side walls of the gap control plates (30); the U-shaped thermal deformation bodies (31) expand after being heated to enlarge the distance between the gap control plates (30), thereby reducing the ventilation gap in the middle of the energy storage battery group (21), thereby increasing the wind pressure and wind speed at that location to achieve an improved wind heat convection cooling effect.

8. A communication base station energy storage device based on a boost battery according to claim 7, characterized in that: The U-shaped thermal deformation body (31) is made of silver-cadmium alloy.

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