An anti-redundancy air-cooled heat dissipation energy storage battery box

Abstract

An anti-redundancy air-cooled heat dissipation energy storage battery box belongs to the technical field of energy storage battery boxes. It is designed to solve the problems that the existing energy storage battery boxes have significant heat dissipation problems under different working conditions, uneven heat dissipation in summer high temperatures affects battery life, and conventional heat dissipation redundancy wastes energy during low heat generation in winter. The present invention forms a continuous heat dissipation channel by setting up branch air ducts surrounding two sides of the battery and main air ducts located between adjacent groups of batteries, and the width of the main air duct is twice that of the branch air duct. In the low-rate discharge state, the battery generates low heat, and the air ducts composed of the branch air duct and the main air duct are used for heat dissipation, avoiding heat dissipation redundancy. In the high-rate discharge state, the battery generates a large amount of heat. By starting the pre-cooling fan and driving the air intake baffle to open the second air inlet under the linkage cooperation of the air volume control component, an additional stream of cold air enters the main air duct, enhancing the heat dissipation of the surfaces where the batteries are close to each other, with uniform heat dissipation and good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage battery boxes, and in particular to an anti-redundancy air-cooling and heat dissipation energy storage battery box. Background Art

[0002] With the continuous development of industry, energy storage battery boxes have been widely used in many fields. Existing energy storage battery boxes have many problems in heat dissipation that need to be solved urgently.

[0003] In summer or under high-rate discharge conditions, multiple batteries are close to each other inside the energy storage battery box, and the heat between adjacent batteries is easily concentrated. Due to the lack of effective targeted heat dissipation measures, heat accumulates on the adjacent battery surfaces, causing the local temperature to rise significantly. This uneven temperature distribution will have a negative impact on battery performance, such as accelerating the unevenness of the chemical reaction rate inside the battery, thereby affecting the battery's charging and discharging efficiency. This will shorten the battery's service life in the long run, increase maintenance costs, and may even cause safety hazards; on the contrary, in winter or at low-rate discharge, the battery generates less heat. At this time, if conventional heat dissipation methods are used, excessive heat dissipation will often occur, that is, there is heat dissipation redundancy, which not only fails to effectively utilize the excess heat dissipation capacity, but also causes energy waste and reduces the overall energy efficiency of the energy storage system. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-redundancy air-cooled heat dissipation energy storage battery box, which solves the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-redundancy air-cooled heat dissipation energy storage battery box, comprising a box body and a battery pack arranged in the box body, four groups of heat-conducting protective shells are evenly distributed inside the box body, the battery pack is installed inside the heat-conducting protective shell, inner retaining frames are evenly distributed in the gap between the box body and the heat-conducting protective shell, a negative pressure air duct is arranged in the middle of the inner retaining frame, a first air inlet and a second air inlet are evenly distributed in the middle of the four sides of the box body, and an air inlet baffle is movably arranged in the second air inlet, the air inlet baffle is used to control the opening and closing of the second air inlet, the box body and An air duct baffle is arranged between the heat-conducting protective shells near the first air inlet, and the gap between the outer wall of the heat-conducting protective shell and the inner wall of the box forms a branch air duct for heat dissipation, and the gap between the two adjacent groups of heat-conducting protective shells forms a main air duct for heat dissipation; when the second air inlet is opened, the first air inlet and the second air inlet are both in an air intake state, at this time, a single stream of air enters the branch air duct, and double streams of air enter the main air duct, and the heat dissipation effect is good and uniform; when the air inlet baffle closes the second air inlet, only the first air inlet enters, and both the branch air duct and the main air duct are cooled by a single stream of air, thereby avoiding heat dissipation redundancy.

[0006] Further, the width of the main air duct is twice that of the branch air duct; both the box body and the heat conduction protection shell are hollow shells that penetrate through from front to back, and a front fixing plate and a rear fixing plate are respectively installed on the front and rear of the box body through bolts.

[0007] Further, rotating shafts are fixedly installed on both the front and rear of the air inlet baffle, and the air inlet baffle is rotatably connected to the front fixing plate and the rear fixing plate through the rotating shafts. When the air inlet baffle rotates, it will control the closing of the second air inlet.

[0008] Further, a rear heat dissipation fan is installed outside the rear fixing plate, and holes are provided on the rear fixing plate to connect the rear heat dissipation fan with the negative pressure air duct. When the rear heat dissipation fan starts, negative pressure will be generated inside the negative pressure air duct, the branch air duct, and the main air duct.

[0009] Further, an air volume control component is installed in front of the front fixing plate, and a front heat dissipation fan is installed in front of the air volume control component. The air volume control component is used to control the rotation of the air inlet baffle; the air volume control component includes a fixing seat installed between the front fixing plate and the front heat dissipation fan. The fixing seat is internally provided with an inner conical air duct that penetrates through from front to back. The inner conical air duct is in the shape of a funnel with a larger front and a smaller rear, and the front fixing plate is provided with a hole matching the rear of the inner conical air duct.

[0010] Further, a fixing frame is provided in the front of the fixing seat. A sliding shaft is slidably connected inside the fixing frame. The rear end of the sliding shaft is fixedly connected with a movable plate. The movable plate is in the shape of a frustum of a cone. When the front heat dissipation fan does not work, due to the negative pressure state inside the negative pressure air duct, the branch air duct, and the main air duct, the movable plate will block the inner conical air duct. When the front heat dissipation fan works, there is negative pressure inside the inner conical air duct, and the movable plate moves under the action of the front heat dissipation fan, so that the inner conical air duct is communicated with the negative pressure air duct, the branch air duct, and the main air duct. At this time, the negative pressure inside the negative pressure air duct, the branch air duct, and the main air duct is further increased.

[0011] Further, the air volume control component further includes a sliding rod that penetrates through the inside and outside of the fixing seat and is slidably connected to the fixing seat. One end of the sliding rod located inside the fixing seat is fixedly connected with a second extrusion block. A first extrusion block corresponding to the second extrusion block is fixedly connected to the side of the movable plate close to the front heat dissipation fan. The cross-section of the first extrusion block is a right triangle, and the cross-section of the second extrusion block is a trapezoid. The inclined surface of the first extrusion block is close to the inclined surface of the second extrusion block.

[0012] Furthermore, the rotating shaft at one end of the air inlet baffle near the front fixing plate penetrates through the rotating shaft and is fixedly connected with a gear. One end of the sliding rod located outside the fixed seat is fixedly connected with a rack, and the rack is meshed with the gear. When the current cooling fan works, it drives the movable plate to move, and then squeezes the second extrusion block through the first extrusion block, causing the sliding rod to move. Under the movement of the sliding rod, the gear is driven to rotate through the rack, and then the air inlet baffle is driven to rotate inside the second air inlet, so that the second air inlet is in an open state.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] An anti-redundancy air-cooled heat dissipation energy storage battery box provided by the present invention forms a continuous heat dissipation channel by arranging branch air ducts surrounding two surfaces of the battery and a main air duct located between adjacent groups of batteries, and the width of the main air duct is twice that of the branch air duct. In the low-rate discharge state, the battery generates little heat, and the branch air duct and the main air duct are used for heat dissipation, avoiding heat dissipation redundancy. In the high-rate discharge state, the battery generates a large amount of heat. By starting the front cooling fan and driving the air inlet baffle to open the second air inlet under the linkage cooperation of the air volume control component, a stream of cold air is added to enter the main air duct, enhancing the heat dissipation of the surfaces where the batteries are close to each other, with uniform heat dissipation and good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a split view of the overall structure of the present invention;

[0017] Figure 3 is a schematic diagram of the structure of the box body, inner cage and heat conduction protection shell of the present invention;

[0018] Figure 4 is a cross-sectional view of the structure of the box body, inner cage and heat conduction protection shell of the present invention;

[0019] Figure 5 is a schematic diagram of the structure of the air inlet baffle, front fixing plate and air volume control component of the present invention;

[0020] Figure 6 is a cross-sectional view of the structure of the air inlet baffle, front fixing plate and air volume control component of the present invention;

[0021] Figure 7 is a schematic diagram of the air flow state inside the box body, inner cage and heat conduction protection shell of the present invention.

[0022] In the figure: 1. Box body; 11. Air duct baffle; 12. First air inlet; 13. Second air inlet; 14. Air inlet baffle; 141. Rotating shaft; 2. Inner cage; 21. Negative pressure air duct; 22. Branch air duct; 23. Main air duct; 3. Heat conduction protection shell; 4. Rear fixing plate; 5. Rear cooling fan; 6. Front fixing plate; 7. Front cooling fan; 8. Air volume control component; 81. Fixed seat; 811. Inner conical air duct; 82. Fixed frame; 83. Sliding shaft; 84. Movable plate; 85. First extrusion block; 86. Second extrusion block; 87. Sliding rod; 88. Rack; 89. Gear. Detailed implementation mode

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] In order to solve the technical problems that the existing energy storage battery box has significant heat dissipation problems under different working conditions, uneven heat dissipation in summer at high temperatures affects the battery life, and conventional heat dissipation is redundant and wastes energy when the heat generation is low in winter, as Figures 1-7 shown, the following preferred technical solutions are provided:

[0025] As Figures 1-4 shown, an anti-redundancy air-cooled heat dissipation energy storage battery box includes a box body 1 and a battery pack arranged in the box body 1. Four groups of heat conduction protection shells 3 are evenly distributed inside the box body 1, and the battery pack is installed inside the heat conduction protection shells 3. Inner cages 2 are evenly distributed in the gaps between the box body 1 and the heat conduction protection shells 3. A negative pressure air duct 21 is arranged in the middle of the inner cages 2. First air inlets 12 and second air inlets 13 are evenly distributed in the middle of the four sides of the box body 1, and an air inlet baffle 14 is movably arranged in the second air inlet 13. The air inlet baffle 14 is used to control the opening and closing of the second air inlet 13. An air duct baffle 11 is arranged at a position close to the first air inlet 12 between the box body 1 and the heat conduction protection shell 3. The gap between the outer wall of the heat conduction protection shell 3 and the inner wall of the box body 1 forms a branch air duct 22 for heat dissipation, and the gap between two adjacent heat conduction protection shells 3 forms a main air duct 23 for heat dissipation; as Figure 7 shown on the left, when the second air inlet 13 is opened, both the first air inlet 12 and the second air inlet 13 are in the air inlet state. At this time, a single stream of air enters the branch air duct 22, and a double stream of air enters the main air duct 23. The heat dissipation effect is good and uniform, as Figure 7 shown on the right, when the air inlet baffle 14 closes the second air inlet 13, only the first air inlet 12 admits air, and a single stream of air is used for heat dissipation in both the branch air duct 22 and the main air duct 23, avoiding heat dissipation redundancy.

[0026] The width of the main air duct 23 is twice that of the branch air duct 22. As Figure 2 shown, both the box body 1 and the heat conduction protection shell 3 are hollow shells that penetrate through from front to back. The front and back of the box body 1 are respectively installed with a front fixing plate 6 and a rear fixing plate 4 through bolts.

[0027] As Figure 5 shown, rotating shafts 141 are fixedly installed on both the front and back of the air inlet baffle 14. The air inlet baffle 14 is rotatably connected to the front fixing plate 6 and the rear fixing plate 4 through the rotating shafts 141. When the air inlet baffle 14 rotates, it will control the closing of the second air inlet 13.

[0028] A rear heat dissipation fan 5 is installed outside the rear fixing plate 4. The rear fixing plate 4 is provided with holes communicating the rear heat dissipation fan 5 with the negative pressure air duct 21. When the rear heat dissipation fan 5 starts, negative pressure will be generated inside the negative pressure air duct 21, the branch air duct 22, and the main air duct 23.

[0029] An air volume control component 8 is installed in front of the front fixing plate 6. A front heat dissipation fan 7 is installed in front of the air volume control component 8. The air volume control component 8 is used to control the rotation of the air inlet baffle 14.

[0030] As Figure 6 shown, the air volume control component 8 includes a fixed seat 81 installed between the front fixing plate 6 and the front heat dissipation fan 7. The inside of the fixed seat 81 is provided with an inner conical air duct 811 that penetrates through from front to back. The inner conical air duct 811 is in the shape of a funnel with a larger front and a smaller rear, and the front fixing plate 6 is provided with holes matching the rear of the inner conical air duct 811.

[0031] A fixing frame 82 is arranged in the front of the inside of the fixed seat 81. A sliding shaft 83 is slidably connected inside the fixing frame 82. The rear end of the sliding shaft 83 is fixedly connected with a movable plate 84. The movable plate 84 is in the shape of a frustum of a cone. When the front heat dissipation fan 7 does not work, due to the negative pressure state inside the negative pressure air duct 21, the branch air duct 22, and the main air duct 23, the movable plate 84 will block the inner conical air duct 811. When the front heat dissipation fan 7 works, the inside of the inner conical air duct 811 is under negative pressure, and the movable plate 84 moves under the action of the front heat dissipation fan 7, so that the inner conical air duct 811 communicates with the negative pressure air duct 21, the branch air duct 22, and the main air duct 23. At this time, the negative pressure inside the negative pressure air duct 21, the branch air duct 22, and the main air duct 23 is further increased.

[0032] The air volume control component 8 further includes a sliding rod 87 passing through the inside and outside of the fixed seat 81, and the fixed seat 81 is slidably connected to the fixed seat 81. One end of the sliding rod 87 located inside the fixed seat 81 is fixedly connected with a second extrusion block 86. One side of the movable plate 84 close to the front heat dissipation fan 7 is fixedly connected with a first extrusion block 85 corresponding to the second extrusion block 86. The cross-section of the first extrusion block 85 is a right triangle, and the cross-section of the second extrusion block 86 is a trapezoid. The inclined surface of the first extrusion block 85 is close to the inclined surface of the second extrusion block 86.

[0033] The rotating shaft 141 at one end of the air inlet baffle 14 close to the front fixing plate 6 passes through the rotating shaft 141 and is fixedly connected with a gear 89. One end of the sliding rod 87 located outside the fixed seat 81 is fixedly connected with a rack 88. The rack 88 is meshed with the gear 89. When the front heat dissipation fan 7 works, it drives the movable plate 84 to move, and then squeezes the second extrusion block 86 through the first extrusion block 85, causing the sliding rod 87 to move. Under the movement of the sliding rod 87, the gear 89 is driven to rotate through the rack 88, and then the air inlet baffle 14 is driven to rotate inside the second air inlet 13, so that the second air inlet 13 is in an open state.

[0034] Specifically, when the front heat dissipation fan 7 is not started, due to the original negative pressure state in the negative pressure air duct 21, the branch air duct 22 and the main air duct 23, the movable plate 84 in the air volume control component 8 blocks the inner conical air duct 811. At this time, the air inlet baffle 14 is in a state of closing the second air inlet 13, and only a small amount of natural wind can enter through the first air inlet 12. The entire heat dissipation system is in a low heat dissipation state to adapt to the low battery heat generation in winter or during low-rate discharge, avoiding heat dissipation redundancy. After the front heat dissipation fan 7 is started, the front heat dissipation fan 7 rotates to generate air flow, causing a negative pressure inside the inner conical air duct 811. At this time, the movable plate 84 moves forward under the action of the front heat dissipation fan 7 to overcome the suction force of the negative pressure air duct 21, so that the inner conical air duct 811 is communicated with the negative pressure air duct 21, the branch air duct 22 and the main air duct 23, and the negative pressure inside each air duct is further increased, strengthening the driving force of air flow. The movement of the movable plate 84 drives the first extrusion block 85 to squeeze the second extrusion block 86, causing the sliding rod 87 to move outwards. The movement of the sliding rod 87 drives the gear 89 to rotate through the rack 88, and then the air inlet baffle 14 rotates inside the second air inlet 13 to open the second air inlet 13. At this time, the first air inlet 12 and the second air inlet 13 intake air simultaneously. The cold air from the outside enters through the first air inlet 12 and the second air inlet 13. The cold air entering through the second air inlet 13 is guided by the air duct baffle 11, first passes through the branch air duct 22 and then enters the main air duct 23. Since the width of the main air duct 23 is twice that of the branch air duct 22, the cold air entering through the second air inlet 13 will directly enter through the main air duct 23, reducing the temperature between the surfaces where the batteries are close to each other, achieving efficient and uniform heat dissipation to cope with the situation of concentrated battery heat in summer or during high-rate discharge.

[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0036] As described above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An anti-redundancy air-cooled heat dissipation energy storage battery box, comprising a box body (1) and a battery pack arranged in the box body (1), characterized in that: Inside the box body (1), four groups of heat-conducting protective shells (3) are evenly distributed. The battery pack is installed inside the heat-conducting protective shell (3). Inner cages (2) are evenly distributed in the gaps between the box body (1) and the heat-conducting protective shells (3). A negative pressure air duct (21) is provided in the middle of the inner cage (2). First air inlets (12) and second air inlets (13) are evenly distributed in the middle of the four sides of the box body (1). And an air inlet baffle (14) is movably arranged in the second air inlet (13). The air inlet baffle (14) is used to control the opening and closing of the second air inlet (13). An air duct baffle (11) is arranged at a position between the box body (1) and the heat-conducting protective shell (3) close to the first air inlet (12). The gap between the outer wall of the heat-conducting protective shell (3) and the inner wall of the box body (1) forms a branch air duct (22) for heat dissipation. The gap between two adjacent heat-conducting protective shells (3) forms a main air duct (23) for heat dissipation. When the second air inlet (13) is opened, both the first air inlet (12) and the second air inlet (13) are in the air inlet state. At this time, a single stream of air enters the branch air duct (22), and a double stream of air enters the main air duct (23). The heat dissipation effect is good and uniform. When the air inlet baffle (14) closes the second air inlet (13), only the first air inlet (12) admits air, and a single stream of air is used for heat dissipation in both the branch air duct (22) and the main air duct (23), avoiding redundant heat dissipation.

2. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 1, characterized in that: The width of the main air duct (23) is twice the width of the branch air duct (22).

3. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 1, characterized in that: Both the box body (1) and the heat-conducting protective shell (3) are hollow shells that penetrate through in the front and back. The front and back of the box body (1) are respectively installed with a front fixing plate (6) and a rear fixing plate (4) through bolts.

4. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 1, wherein: Rotating shafts (141) are fixedly installed at the front and back of the air inlet baffle (14). The air inlet baffle (14) is rotationally connected to the front fixing plate (6) and the rear fixing plate (4) through the rotating shafts (141). When the air inlet baffle (14) rotates, it will control the closing of the second air inlet (13).

5. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 3, characterized in that: A rear heat dissipation fan (5) is installed outside the rear fixing plate (4). A hole communicating the rear heat dissipation fan (5) and the negative pressure air duct (21) is provided on the rear fixing plate (4). When the rear heat dissipation fan (5) starts, negative pressure will be generated inside the negative pressure air duct (21), the branch air duct (22), and the main air duct (23).

6. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 3, wherein: An air volume control component (8) is installed in front of the front fixing plate (6). A front heat dissipation fan (7) is installed in front of the air volume control component (8). The air volume control component (8) is used to control the rotation of the air inlet baffle (14).

7. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 6, wherein: The air volume control component (8) includes a fixing seat (81) installed between the front fixing plate (6) and the front heat dissipation fan (7). An inner conical air duct (811) that penetrates through in the front and back is provided inside the fixing seat (81). The inner conical air duct (811) is in the shape of a funnel with a larger front and a smaller back, and a hole matching the rear of the inner conical air duct (811) is provided on the front fixing plate (6).

8. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 7, wherein: A fixing frame (82) is arranged at the front inside of the fixing base (81). A sliding shaft (83) is slidably connected inside the fixing frame (82). A movable plate (84) is fixedly connected to the rear end of the sliding shaft (83). The movable plate (84) is frustum-shaped. When the current cooling fan (7) is not working, due to the negative pressure states inside the negative pressure air duct (21), the branch air duct (22) and the main air duct (23), the movable plate (84) will block the inner conical air duct (811). When the current cooling fan (7) is working, there is negative pressure inside the inner conical air duct (811), and the movable plate (84) moves under the action of the front cooling fan (7), so that the inner conical air duct (811) communicates with the negative pressure air duct (21), the branch air duct (22) and the main air duct (23). At this time, the negative pressure inside the negative pressure air duct (21), the branch air duct (22) and the main air duct (23) is further increased.

9. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 8, wherein: The air volume control component (8) further includes a sliding rod (87) penetrating inside and outside the fixing base (81), and the sliding rod (87) is slidably connected to the fixing base (81). One end of the sliding rod (87) located inside the fixing base (81) is fixedly connected with a second extrusion block (86). A first extrusion block (85) corresponding to the second extrusion block (86) is fixedly connected to one side of the movable plate (84) close to the front cooling fan (7). The cross section of the first extrusion block (85) is a right triangle, and the cross section of the second extrusion block (86) is a trapezoid. The inclined surface of the first extrusion block (85) is close to the inclined surface of the second extrusion block (86).

10. The anti-redundancy air-cooled heat dissipation energy storage battery box according to claim 9, characterized in that: A rotating shaft (141) at one end of the air inlet baffle (14) close to the front fixing plate (6) penetrates through the rotating shaft (141) and is fixedly connected with a gear (89). One end of the sliding rod (87) located outside the fixing base (81) is fixedly connected with a rack (88). The rack (88) is meshed with the gear (89). When the current cooling fan (7) works, it drives the movable plate (84) to move, and then squeezes the second extrusion block (86) through the first extrusion block (85), so that the sliding rod (87) moves. Under the movement of the sliding rod (87), the gear (89) is driven to rotate through the rack (88), and then the air inlet baffle (14) is driven to rotate inside the second air inlet (13), so that the second air inlet (13) is in an open state.

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