Redundancy-preventing air-cooling heat-dissipation energy-storage battery box

Abstract

The invention discloses an anti-redundancy air-cooling heat dissipation energy storage battery box, belongs to the technical field of energy storage battery boxes, and aims to solve the problems that the heat dissipation problem of the conventional energy storage battery box under different working conditions is obvious, the service life of a battery is influenced by non-uniform heat dissipation at high temperature in summer, and the conventional heat dissipation is redundant and wastes energy during low heating in winter. A continuous heat dissipation channel is formed by arranging the branch air ducts surrounding the two faces of the batteries and the main air ducts located between the two adjacent sets of batteries, the width of the main air ducts is twice that of the branch air ducts, in the low-rate discharging state, the heat of the batteries is low, the air ducts composed of the branch air ducts and the main air ducts are adopted for heat dissipation, heat dissipation redundancy is avoided, and the heat dissipation efficiency is improved. The battery heat is large under high-rate discharge, the front cooling fan is started, the air inlet baffle is driven to open the second air inlet under linkage cooperation of the air volume control assembly, a strand of cold air is added to enter the main air duct, heat dissipation of the faces, close to each other, of the batteries is enhanced, heat dissipation is uniform, and the heat dissipation effect is good.

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] Furthermore, the width of the main air duct is twice the width of the branch air duct; the box body and the heat-conducting protective shell are both hollow shells that penetrate from front to back, and the front and rear fixing plates of the box body are respectively installed with bolts at the front and rear.

[0007] Furthermore, a rotating shaft is fixedly installed at the front and rear of the air inlet baffle, and the air inlet baffle is rotatably connected to the front fixed plate and the rear fixed plate through the rotating shaft. When the air inlet baffle rotates, the closing of the second air inlet is controlled.

[0008] Furthermore, a rear cooling fan is installed on the outside of the rear fixing plate, and a hole connecting the rear cooling fan and the negative pressure air duct is provided on the rear fixing plate. When the rear cooling fan is started, negative pressure will be generated inside the negative pressure air duct, the branch air duct and the main air duct.

[0009] Furthermore, an air volume control component is installed in front of the front fixing plate, and a front cooling fan is installed in front of the air volume control component, and 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 cooling fan, and an inner cone air duct running through the front and back is provided inside the fixing seat, and the inner cone air duct is funnel-shaped with a larger front and a smaller rear, and a hole matching the rear of the inner cone air duct is provided on the front fixing plate.

[0010] Furthermore, a fixing frame is arranged at the front inner part of the fixing seat, and a sliding shaft is slidably connected to the inner part of the fixing frame, and a movable plate is fixedly connected to the rear end of the sliding shaft, and the movable plate is in a frustum shape. When the front cooling fan is not working, the negative pressure air duct, branch air duct and main air duct are in a negative pressure state, so that the movable plate will block the inner cone air duct. When the front cooling fan is working, the inner cone air duct is under negative pressure, and the movable plate moves under the action of the front cooling fan, so that the inner cone air duct is connected with the negative pressure air duct, branch air duct and main air duct. At this time, the negative pressure inside the negative pressure air duct, branch air duct and main air duct is further increased.

[0011] Furthermore, the air volume control component also includes a sliding rod that passes through the inside and outside of the fixed seat, and the fixed seat is slidably connected to the fixed seat, one end of the sliding rod located inside the fixed seat is fixedly connected to the second extrusion block, and the side of the movable plate close to the front cooling fan is fixedly connected to the first extrusion block corresponding to the second extrusion block, the cross-section of the first extrusion block is a right triangle, the cross-section of the second extrusion block is a trapezoid, and the inclined surface of the first extrusion block is close to the inclined surface of the second extrusion block.

[0012] Furthermore, a rotating shaft at one end of the air inlet baffle close to the front fixed plate passes through the rotating shaft and is fixedly connected to a gear, and one end of the sliding rod located outside the fixed seat is fixedly connected to a rack, and the rack is meshingly connected to the gear. When the current cooling fan is working, it drives the movable plate to move, and then the second extrusion block is squeezed by the first extrusion block, so that the sliding rod moves, and the gear rotates through the rack when the sliding rod moves, 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 present invention has the following beneficial effects:

[0014] The present invention provides an anti-redundancy air-cooled heat dissipation energy storage battery box, which forms a continuous heat dissipation channel by arranging branch air ducts surrounding two surfaces of the battery and a main air duct located between two adjacent groups of batteries, and the width of the main air duct is twice the width of the branch air duct. Under low-rate discharge conditions, the battery heat is low, and an air duct composed of the branch air duct and the main air duct is used for heat dissipation, thereby avoiding heat dissipation redundancy. Under high-rate discharge, the battery heat is high, and the front heat dissipation fan is started, and the air inlet baffle is driven to open the second air inlet under the linkage cooperation of the air volume control component, so that a stream of cold air is added to enter the main air duct, thereby enhancing the heat dissipation of the surfaces of the batteries that are close to each other, and the heat dissipation is uniform and the heat dissipation effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 It is a disassembled diagram of the overall structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the box body, the inner retainer and the heat-conducting protective shell of the present invention;

[0018] Figure 4 It is a cross-sectional view of the box body, inner retainer and heat-conducting protective shell structure of the present invention;

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

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

[0021] Figure 7 It is a schematic diagram of the wind direction flow state in the box body, inner retaining frame and heat conductive protective 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 retaining frame; 21. negative pressure air duct; 22. branch air duct; 23. main air duct; 3. thermal conductive protective shell; 4. rear fixing plate; 5. rear cooling fan; 6. front fixing plate; 7. front cooling fan; 8. air volume control component; 81. fixing seat; 811. inner cone air duct; 82. fixing frame; 83. sliding shaft; 84. movable plate; 85. first extrusion block; 86. second extrusion block; 87. sliding rod; 88. rack; 89. gear. DETAILED DESCRIPTION

[0023] 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.

[0024] In order to solve the existing energy storage battery box heat dissipation problem under different working conditions, the uneven heat dissipation in summer with high temperature affects the battery life, and the conventional heat dissipation is redundant and wastes energy when the temperature is low in winter. Figure 1-Figure 7 As shown, the following preferred technical solutions are provided:

[0025] like Figure 1-Figure 4 As 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-conducting protective shells 3 are evenly distributed inside the box body 1, and the battery pack is installed inside the heat-conducting protective shell 3. Inner retaining frames 2 are evenly distributed in the gap between the box body 1 and the heat-conducting protective shell 3, and a negative pressure air duct 21 is arranged in the middle of the inner retaining frame 2. A first air inlet 12 and a second air inlet 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, and 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 between the box body 1 and the heat-conducting protective shell 3 near the first air inlet 12, and 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, and the gap between two adjacent groups of heat-conducting protective shells 3 forms a main air duct 23 for heat dissipation; as shown Figure 7 As shown on the left, when the second air inlet 13 is opened, the first air inlet 12 and the second air inlet 13 are both in the air intake 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, so the heat dissipation effect is good and uniform. Figure 7 As shown on the right side, when the air inlet baffle 14 closes the second air inlet 13, only the first air inlet 12 takes in air, and the branch air duct 22 and the main air duct 23 both use single-stream air to dissipate heat, thus avoiding redundant heat dissipation.

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

[0027] like Figure 5 As shown, a rotating shaft 141 is fixedly installed at the front and rear of the air inlet baffle 14, and the air inlet baffle 14 is rotatably connected to the front fixing plate 6 and the rear fixing plate 4 through the rotating shaft 141. When the air inlet baffle 14 rotates, the closing of the second air inlet 13 is controlled.

[0028] A rear cooling fan 5 is installed on the outside of the rear fixing plate 4. A hole connecting the rear cooling fan 5 and the negative pressure air duct 21 is provided on the rear fixing plate 4. When the rear cooling fan 5 is started, 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 , and a front cooling 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] like Figure 6 As shown, the air volume control component 8 includes a fixing base 81 installed between the front fixing plate 6 and the front cooling fan 7, and an inner cone air duct 811 is provided inside the fixing base 81 and passes through the front and back. The inner cone air duct 811 is funnel-shaped with a larger front and a smaller back, and a hole matching the rear of the inner cone air duct 811 is provided on the front fixing plate 6.

[0031] A fixing frame 82 is arranged at the front of the fixing seat 81, and a sliding shaft 83 is slidably connected to 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 in a frustum shape. When the front cooling fan 7 is not working, since the negative pressure duct 21, the branch duct 22 and the main duct 23 are in a negative pressure state, the movable plate 84 will block the inner cone duct 811. When the front cooling fan 7 is working, the inner cone duct 811 is under negative pressure. The movable plate 84 moves under the action of the front cooling fan 7, so that the inner cone duct 811 is connected with the negative pressure duct 21, the branch duct 22 and the main duct 23. At this time, the negative pressure inside the negative pressure duct 21, the branch duct 22 and the main duct 23 is further increased.

[0032] The air volume control assembly 8 also includes a sliding rod 87 that passes 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 to the second extrusion block 86, and the side of the movable plate 84 close to the front cooling fan 7 is fixedly connected to the 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 fixed plate 6 passes through the rotating shaft 141 and is fixedly connected to a gear 89. The end of the sliding rod 87 located outside the fixed seat 81 is fixedly connected to a rack 88, and the rack 88 is meshed with the gear 89. When the current cooling fan 7 is working, it drives the movable plate 84 to move, and then squeezes the second squeezing block 86 through the first squeezing block 85, so that the sliding rod 87 moves. When the sliding rod 87 moves, the gear 89 is rotated 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 cooling fan 7 is not started, due to the original negative pressure state inside the negative pressure duct 21, the branch air duct 22 and the main air duct 23, the movable plate 84 in the air volume control assembly 8 blocks the inner cone air duct 811. At this time, the air inlet baffle 14 is in a state of closing the second air inlet 13, and only the first air inlet 12 can allow a small amount of natural wind to enter. The entire cooling system is in a low heat dissipation state to adapt to the low heat generation of the battery in winter or during low-rate discharge, and to avoid heat dissipation redundancy; after the front cooling fan 7 is started, the front cooling fan 7 rotates to generate airflow, so that a negative pressure is formed inside the inner cone air duct 811. At this time, the movable plate 84 overcomes the suction force of the negative pressure duct 21 under the action of the front cooling fan 7 and moves forward, thereby connecting the inner cone air duct 811 with the negative pressure duct 21, the branch air duct 22 and the main air duct 23, and the negative pressure inside each air duct is further increased, thereby strengthening the air flow The movable plate 84 is driven by the dynamic driving force, and the movement of the movable plate 84 drives the first extrusion block 85 to squeeze the second extrusion block 86, so that the sliding rod 87 moves outward. 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 take in air at the same time, and the external cold air enters from the first air inlet 12 and the second air inlet 13. The cold air entering from the second air inlet 13 passes through the branch air duct 22 and then enters the main air duct 23 under the guidance of the air duct baffle 11. Since the width of the main air duct 23 is twice that of the branch air duct 22, the cold air entering from the second air inlet 13 will directly enter through the main air duct 23, thereby reducing the temperature between the surfaces of the batteries that are close to each other, and realizing efficient and uniform heat dissipation to cope with the situation where battery heat is concentrated in summer or during high-rate discharge.

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

[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. 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: Four groups of heat-conducting protective shells (3) are evenly distributed inside the box (1), the battery pack is installed inside the heat-conducting protective shell (3), an inner retaining frame (2) is evenly distributed in the gap between the box (1) and the heat-conducting protective shell (3), a negative pressure air duct (21) is arranged in the middle of the inner retaining frame (2), a first air inlet (12) and a second air inlet (13) are evenly distributed in the middle of the four sides of the box (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), and an air duct baffle (14) is arranged between the box (1) and the heat-conducting protective shell (3) near the first air inlet (12). 11), 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, and the gap between two adjacent groups of heat-conducting protective shells (3) forms a main air duct (23) for heat dissipation; when the second air inlet (13) is opened, the first air inlet (12) and the second air inlet (13) are both in an air intake state, at which time a single stream of air enters the branch air duct (22), and a double stream of air enters the main air duct (23), so that 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) enters, and the branch air duct (22) and the main air duct (23) are both cooled by a single stream of air, thereby avoiding heat dissipation redundancy.

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

4. The anti-redundancy air-cooling and heat dissipation energy storage battery box according to claim 1, characterized in that: The air inlet baffle (14) is fixedly mounted with a rotating shaft (141) at the front and rear ends thereof. The air inlet baffle (14) is rotatably connected to the front fixing plate (6) and the rear fixing plate (4) via the rotating shaft (141). When the air inlet baffle (14) rotates, the closing of the second air inlet (13) is controlled.

5. The anti-redundancy air-cooling and heat dissipation energy storage battery box according to claim 1, characterized in that: A rear cooling fan (5) is installed outside the rear fixing plate (4), and a hole connecting the rear cooling fan (5) and the negative pressure air duct (21) is provided on the rear fixing plate (4). When the rear cooling fan (5) is started, negative pressure is generated inside the negative pressure air duct (21), the branch air duct (22) and the main air duct (23).

6. The anti-redundancy air-cooling and heat dissipation energy storage battery box according to claim 3, characterized in that: An air volume control component (8) is installed in front of the front fixing plate (6), and a front cooling 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-cooling and heat dissipation energy storage battery box according to claim 6, characterized in that: The air volume control assembly (8) comprises a fixing seat (81) installed between the front fixing plate (6) and the front cooling fan (7); an inner cone air duct (811) penetrating from front to back is provided inside the fixing seat (81); the inner cone air duct (811) is in the shape of a funnel with a larger front portion and a smaller rear portion; and a hole matching the rear of the inner cone air duct (811) is provided on the front fixing plate (6).

8. The anti-redundancy air-cooling and heat dissipation energy storage battery box according to claim 7, characterized in that: A fixing frame (82) is arranged at the front of the fixing seat (81), and a sliding shaft (83) is slidably connected to 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 in a frustum shape. When the front cooling fan (7) is not working, since the negative pressure air duct (21), the branch air duct (22) and the main air duct (23) are in a negative pressure state, the movable plate (84) will block the inner cone air duct (811). When the front cooling fan (7) is working, the inner cone air duct (811) is in a negative pressure state. The movable plate (84) moves under the action of the front cooling fan (7), so that the inner cone air duct (811) is connected 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-cooling and heat dissipation energy storage battery box according to claim 8, characterized in that: The air volume control assembly (8) further comprises a sliding rod (87) penetrating inside and outside 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 to a second extrusion block (86), and a first extrusion block (85) corresponding to the second extrusion block (86) is fixedly connected to the 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, the cross section of the second extrusion block (86) is a trapezoid, and 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-cooling and heat dissipation energy storage battery box according to claim 9, characterized in that: The rotating shaft (141) at one end of the air inlet baffle (14) close to the front fixed plate (6) passes through the rotating shaft (141) and is fixedly connected to a gear (89); the end of the sliding rod (87) located outside the fixed seat (81) is fixedly connected to a rack (88); the rack (88) is meshed with the gear (89); when the front cooling fan (7) is working, the movable plate (84) is driven to move, and then the first extrusion block (85) squeezes the second extrusion block (86), so that the sliding rod (87) moves; when the sliding rod (87) moves, 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.

Images