Constant-temperature cooling equipment for energy storage battery compartment

Abstract

The invention relates to the technical field of battery constant temperature, in particular to energy storage battery bin constant-temperature cooling equipment which comprises an energy storage bin, a plurality of battery packs are fixedly installed in the energy storage bin, a cabinet door is connected to the energy storage bin through a hinge, and a heat dissipation frame for conducting heat dissipation on the battery packs is fixedly installed on the cabinet door. An air outlet frame is fixedly installed at the top end of the heat dissipation frame, a cooling box is fixedly installed on the side, away from the cabinet door, of the energy storage bin, a cooling assembly is arranged in the cooling box, the cooling assembly comprises an air blowing cylinder fixedly installed at the top end of the interior of the cooling box, and a conical air inlet frame is fixedly installed on the side, close to the cabinet door, of the air blowing cylinder. Hot air in the L-shaped guide pipe is driven into the primary cooling barrel through the mixing blades on the rotating shaft, cold air in the primary cooling area ring is pumped into the primary cooling barrel through the conveying guide pipe, the cold air and the hot air are mixed and cooled through the mixing blades, the cold air and the hot air are rotated into the secondary cooling barrel while being mixed, and the multi-stage cooling effect of the hot air is achieved.

Description

Technical Field

[0001] This invention relates to the field of battery temperature control technology, and in particular to a temperature control cooling device for an energy storage battery compartment. Background Technology

[0002] The energy storage battery compartment is an integrated energy storage system developed to meet the needs of the mobile energy storage market. It integrates battery cabinets, lithium battery management system (BMS), container environmental monitoring system, and can also integrate energy storage converter and energy management system according to customer needs. The energy storage battery compartment mainly consists of battery pack, battery rack, high voltage box, combiner cabinet, fire protection equipment, air conditioning system, monitoring equipment, lighting, etc. Among them, the battery pack consists of individual cells (lithium iron phosphate battery, high energy density 30Ah, square aluminum shell), battery modules, and battery clusters.

[0003] In high-temperature environments, the electrolyte inside the battery decomposes and deteriorates, disrupting the chemical balance, affecting the battery's lifespan, and causing serious safety hazards. Therefore, in order to ensure the stable and reliable operation of the energy storage system, it is necessary to control the temperature of the battery pack within a suitable range. The ambient temperature and the large amount of heat generated by the battery pack during charging and discharging are the two main factors affecting the battery pack temperature. Existing energy storage compartments have independent cooling fans for the battery packs, but the heat dissipated is concentrated inside the compartment, making it impossible to achieve a circulating constant temperature cooling effect. In addition, the temperature control requirements of the energy storage battery compartment vary at different times. When the external high temperature causes the internal temperature to rise, the internal cooling efficiency cannot be improved accordingly. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a constant temperature cooling device for energy storage battery compartments.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: It includes an energy storage compartment, inside which several battery packs are fixedly installed. A cabinet door is connected to the energy storage compartment via a hinge. A heat dissipation rack for cooling the battery packs is fixedly installed on the cabinet door. An air outlet rack is fixedly installed at the top of the heat dissipation rack. A cooling box is fixedly installed on the side of the energy storage compartment away from the cabinet door. A cooling assembly is provided inside the cooling box, and the cooling assembly includes: A blower is fixedly installed at the top of the interior of the cooling box. A conical air inlet frame is fixedly installed on the blower near the cabinet door. A rotary motor is fixedly installed at the top of the blower. A rotary shaft is fixedly installed at the output end of the rotary motor. Several blower fans are evenly installed on the rotary shaft inside the blower. Several L-shaped ducts are evenly installed around the outer perimeter of the blower by bolts. A primary cooling cylinder is fixedly installed in the middle of the interior of the cooling box. The bottom end of the L-shaped conduit is connected to the top of the primary cooling cylinder. A primary cooling ring is fixedly installed on the outer periphery of the primary cooling cylinder on the cooling box. A primary cooling ring is fixedly installed on the top of the primary cooling ring. The bottom of the rotating shaft extends through into the primary cooling cylinder. Several mixing blades are installed on the rotating shaft in the primary cooling cylinder through connecting rods. A cooler is fixedly installed at the bottom of the cooling box. A secondary cooling cylinder is fixedly installed at the center of the top of the cooler. The top of the secondary cooling cylinder is connected to the primary cooling cylinder. An S-shaped refrigeration tube is fixedly installed on the inner wall of the secondary cooling cylinder by bolts. The bottom of the S-shaped refrigeration tube is connected to the output end of the cooler through an L-shaped liquid outlet pipe. The top of the S-shaped refrigeration tube is connected to the primary cooling ring. A first fixing box is fixedly installed on the secondary cooling cylinder near the battery pack. A first fixing rod is movably connected to the first fixing box via a bearing. A second fixing box is fixedly installed on the secondary cooling cylinder on one side of the first fixing box via bolts. A second fixing rod is movably connected to the second fixing box via a bearing.

[0006] As a preferred embodiment of the present invention, the heat sink has a plurality of heat conduction holes evenly provided on one side of the battery pack, and ventilation holes are provided between adjacent heat conduction holes on the heat sink, and the air outlet frame moves within the conical air inlet frame.

[0007] A battery management system box is bolted to the bottom of the battery pack in the energy storage compartment. An energy management system and an energy storage converter are bolted to one side of the bottom of the battery management system box inside the energy storage compartment. Each battery pack is equipped with a cooling fan, and the air outlet of the cooling fan matches the size and position of the heat conduction hole.

[0008] As a preferred embodiment of the present invention, a motor housing is fixedly installed on the top of the cooling box, and the rotary motor is fixedly installed on the motor housing by bolts. An L-shaped air outlet pipe is fixedly installed on the bottom of the secondary cooling cylinder by bolts. A support pipe is connected to the bottom end of the L-shaped air outlet pipe. Cooling branch pipes are fixedly installed at both ends of the top of the support pipe, and the cooling branch pipes are located on both sides of the bottom of the battery pack. Several flared openings are evenly installed on one side of the cooling branch pipe located on the battery pack.

[0009] The first fixing rod extends through into the secondary cooling cylinder, and several rotating blades are fixedly installed on the first fixing rod in the secondary cooling cylinder by bolts. A first rotating gear is fixedly installed on the first fixing rod in the first fixing box.

[0010] As a preferred embodiment of the present invention, the first fixed box and the second fixed box are connected through each other, and a second rotating toothed disk is fixedly installed on the second fixed rod in the second fixed box. The second rotating toothed disk and the first rotating toothed disk are movably engaged, and the diameter of the first rotating toothed disk is half the diameter of the second rotating toothed disk. A heat dissipation blade is fixedly installed at the top of the second fixed rod, and the heat dissipation blade is movable on the outside side of the second fixed box.

[0011] A heat-conducting ring is fixedly installed inside the primary cooling ring, and the bottom of the heat-conducting ring is connected through the primary cooling ring. Several delivery conduits are evenly installed between the primary cooling ring and the primary cooling cylinder.

[0012] As a preferred embodiment of the present invention, a plurality of refrigeration branch pipes are fixedly installed on the S-shaped refrigeration pipe inside the secondary cooling cylinder, and a return conduit is fixedly installed on the primary cooling cylinder by bolts, with the bottom end of the return conduit installed on the input end of the refrigerator.

[0013] A conical air outlet frame is fixedly installed at the bottom of the secondary cooling cylinder. A support rod is fixedly installed on the conical air outlet frame, and an expansion ball is fixedly installed at the center of the support rod. The expansion ball is located at the center of the conical air outlet frame.

[0014] Compared with the prior art, the beneficial effects that this invention can achieve are: The rotating shaft drives the blower fan inside the blower tube to rotate, creating a negative pressure at one end of the conical air inlet and outlet frame. The hot air generated by the cooling fan on the battery pack enters the blower tube, and then the hot air is evenly distributed into the primary cooling cylinder through the L-shaped ducts around the blower tube.

[0015] The hot air from the L-shaped duct is driven into the primary cooling cylinder by the mixing blades on the rotating shaft. The delivery duct also draws the cold air from the primary cold zone ring into the primary cooling cylinder. The mixing blades mix the hot and cold air to cool it down. While mixing, the air is rotated into the secondary cooling cylinder, achieving a multi-stage cooling effect for the hot air.

[0016] The refrigerant generated inside the refrigerator is injected into the S-shaped refrigerant pipe through the L-shaped liquid outlet pipe. The hot gas coming down from the primary cooling cylinder is thoroughly cooled in the secondary cooling cylinder through the S-shaped refrigerant pipe and the refrigerant distribution pipe, thus completing the cooling effect on the hot gas.

[0017] The first rotating gear on the first fixed rod meshes with the second rotating gear on the second fixed rod, causing the second fixed rod to rotate. The second fixed rod then drives the outer heat dissipation blades to rotate and blow air, which in turn blows air onto the battery pack to dissipate heat, improving the internal heat dissipation effect. The structure is cleverly linked and stable.

[0018] When the flow rate inside the secondary cooling cylinder increases, the rotation speed of the rotating blades increases, the blowing effect of the heat dissipation blades is enhanced, and the heat dissipation capacity is improved. At the same time, when the rotating blades rotate inside, they fan the gas towards the inner wall to contact the S-shaped refrigeration pipe, thereby improving the cooling effect. The design is ingenious. By utilizing the S-shaped refrigeration pipes where the refrigerant flows from bottom to top and the hot gas flows from top to bottom, the relative movement between the hot and cold gases improves the cooling effect of the hot gas and keeps the energy storage chamber at a constant temperature. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall back structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the internal structure of the intermediate cooling box; Figure 4 For the present invention Figure 3 Schematic diagram of the connection structure of the middle support pipe; Figure 5 For the present invention Figure 4 Schematic diagram of the connection structure of the intermediate and secondary cooling cylinders; Figure 6 For the present invention Figure 5 Schematic diagram of the internal structure of the primary and secondary cooling rings; Figure 7 For the present invention Figure 6 Schematic diagram of the connection structure of the first rotating gear disk; Figure 8 For the present invention Figure 6 Schematic diagram of the internal structure of the primary and intermediate cooling cylinder; Figure 9 For the present invention Figure 5 Schematic diagram of the bottom structure of the secondary cooling cylinder; Figure 10 For the present invention Figure 6 Schematic diagram of the connection structure between the secondary cooling cylinder and the first fixed box.

[0020] The components include: 10. Energy storage compartment; 11. Battery pack; 12. Battery management system box; 13. Energy management system; 14. Energy storage converter; 15. Cooling fan; 20. Cabinet door; 21. Heat sink rack; 22. Exhaust rack; 23. Heat conduction hole; 24. Ventilation hole; 30. Cooling box; 31. Refrigerator; 32. Secondary cooling cylinder; 33. S-shaped refrigerant pipe; 34. L-shaped liquid outlet pipe; 35. Motor box; 36. Refrigerant branch pipe; 37. Conical air outlet rack; 38. Support rod; 39. Expansion ball; 40. Blower; 41. Conical air inlet rack; 42. Rotary electric... 43. Rotating shaft; 44. Blower fan; 45. L-shaped duct; 50. Primary cooling cylinder; 51. Primary cooling ring; 52. Primary cooling ring; 53. Connecting rod; 54. Mixing blades; 55. Heat-conducting ring; 56. Conveying duct; 57. Return duct; 60. First fixed box; 61. First fixed rod; 62. Second fixed box; 63. Second fixed rod; 64. Rotating blades; 65. First rotating gear; 66. Second rotating gear; 67. Heat dissipation blades; 70. L-shaped exhaust pipe; 71. Support pipe; 72. Cooling branch pipe; 73. Trumpet mouth. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0022] Example: Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, the device includes an energy storage compartment 10, inside which several battery packs 11 are fixedly installed. A cabinet door 20 is connected to the energy storage compartment 10 via a hinge. A heat dissipation rack 21 for cooling the battery packs 11 is fixedly installed on the cabinet door 20. An exhaust rack 22 is fixedly installed at the top of the heat dissipation rack 21. A cooling box 30 is fixedly installed on the side of the energy storage compartment 10 away from the cabinet door 20. A cooling assembly is provided inside the cooling box 30, and the cooling assembly includes: A blower duct 40 is fixedly installed at the top of the interior of the cooling box 30. A conical air inlet frame 41 is fixedly installed on the blower duct 40 on the side near the cabinet door 20. A rotary motor 42 is fixedly installed on the top of the blower duct 40. A rotary shaft 43 is fixedly installed at the output end of the rotary motor 42. Several blower fans 44 are evenly installed on the rotary shaft 43 inside the blower duct 40. Several L-shaped ducts 45 are evenly installed around the outer perimeter of the blower duct 40 by bolts. The blower fans 44 draw the hot air in the heat sink 21 into the L-shaped ducts 45 and guide the hot air through the L-shaped ducts 45 to the primary cooling cylinder 50. A primary cooling cylinder 50 is fixedly installed in the middle of the interior of the cooling box 30. The bottom end of the L-shaped conduit 45 is connected to the top of the primary cooling cylinder 50. A primary cooling ring 51 is fixedly installed on the outer periphery of the primary cooling cylinder 50 on the cooling box 30. A primary cooling ring 52 is fixedly installed on the top of the primary cooling ring 51. The primary cooling ring 51 cools the primary cooling ring 52, forming cold air. The bottom of the rotating shaft 43 extends through into the primary cooling cylinder 50. Several mixing blades 54 are installed on the rotating shaft 43 in the primary cooling cylinder 50 through the connecting rod 53. The mixing blades 54 are used to buffer and mix the cold air in the primary cooling ring 52 and the hot air in the L-shaped conduit 45. The mixed air is then forced into the secondary cooling cylinder 32 by the rotation of the mixing blades 54. A cooler 31 is fixedly installed at the bottom of the cooling box 30. A secondary cooling cylinder 32 is fixedly installed at the center of the top of the cooler 31. The top of the secondary cooling cylinder 32 is connected to the primary cooling cylinder 50. An S-shaped refrigeration pipe 33 is fixedly installed on the inner wall of the secondary cooling cylinder 32 by bolts. The bottom of the S-shaped refrigeration pipe 33 is connected to the output end of the cooler 31 through an L-shaped liquid outlet pipe 34. The top of the S-shaped refrigeration pipe 33 is connected to the primary cooling ring 51. Cooling liquid is generated by the cooler 31. The cooling liquid enters the primary cooling ring 51 through the S-shaped refrigeration pipe 33 to achieve relative exchange with the hot air. The hot air moves downward and the cooling liquid moves upward. A first fixing box 60 is fixedly installed on the secondary cooling cylinder 32 on the side near the battery pack 11. A first fixing rod 61 is movably connected to the first fixing box 60 via a bearing. A second fixing box 62 is fixedly installed on the secondary cooling cylinder 32 on the side of the first fixing box 60 via bolts. A second fixing rod 63 is movably connected to the second fixing box 62 via a bearing.

[0023] See Figure 1 , Figure 2 and Figure 3The heat sink 21 has several heat conduction holes 23 evenly distributed on one side of the battery pack 11. Ventilation holes 24 are provided between adjacent heat conduction holes 23 on the heat sink 21. The air outlet 22 moves in the conical air inlet 41 to concentrate the cooling of the hot air generated by the cooling fan 15 on the battery pack 11. The structure is simple and stable.

[0024] A battery management system box 12 is bolted to the bottom of the battery pack 11 on the energy storage compartment 10. An energy management system 13 and an energy storage converter 14 are bolted to the bottom side of the battery management system box 12 inside the energy storage compartment 10 to achieve stable use of the battery pack 11 inside the energy storage compartment 10. Each battery pack 11 is equipped with a cooling fan 15, and the size and position of the air outlet of the cooling fan 15 match the heat conduction hole 23. The heat dissipation frame 21 is used to isolate and guide the hot air generated by the cooling fan 15 into the cooling box 30.

[0025] See Figure 4 , Figure 5 , Figure 6 and Figure 10 A motor housing 35 is fixedly installed on the top of the cooling box 30. The rotary motor 42 is fixedly installed on the motor housing 35 by bolts. An L-shaped air outlet pipe 70 is fixedly installed on the bottom of the secondary cooling cylinder 32 by bolts. A support pipe 71 is connected to the bottom end of the L-shaped air outlet pipe 70. Cooling branch pipes 72 are fixedly installed at both ends of the top of the support pipe 71. The cooling branch pipes 72 are located on both sides of the bottom of the battery pack 11. Several horn-shaped openings 73 are evenly installed on one side of the battery pack 11 on the cooling branch pipes 72. The cold air at the bottom of the secondary cooling cylinder 32 flows back to both sides of the battery pack 11 through the horn-shaped openings 73, thereby achieving a constant temperature cooling effect in the energy storage chamber 10.

[0026] The first fixing rod 61 extends through into the secondary cooling cylinder 32, and several rotating blades 64 are fixedly installed on the first fixing rod 61 in the secondary cooling cylinder 32 by bolts. A first rotating gear disk 65 is fixedly installed on the first fixing rod 61 in the first fixing box 60. The meshing of the rotating gear disk causes the heat dissipation blades 67 to rotate, and the heat dissipation blades 67 realize air exchange and improve the heat dissipation effect.

[0027] See Figure 6 , Figure 7 and Figure 10The first fixed box 60 and the second fixed box 62 are connected through each other. A second rotating gear 66 is fixedly installed on the second fixed rod 63 in the second fixed box 62. The second rotating gear 66 and the first rotating gear 65 are movably meshed, and the diameter of the first rotating gear 65 is half the diameter of the second rotating gear 66. The high-speed rotation of the heat dissipation blade 67 is achieved by rotating gears of different diameters. The heat dissipation blade 67 is fixedly installed on the top of the second fixed rod 63, and the heat dissipation blade 67 moves to the outside of the second fixed box 62 to achieve the heat dissipation effect of the battery pack 11.

[0028] A heat-conducting ring 55 is fixedly installed inside the primary cooling ring 52, and the bottom of the heat-conducting ring 55 is connected to the primary cooling ring 51. The cold air in the primary cooling ring 51 is injected into the primary cooling ring 52 through the heat-conducting ring 55, so that cold air is generated in the primary cooling ring 52. Several delivery pipes 56 are evenly installed between the primary cooling ring 52 and the primary cooling cylinder 50, and cold air is injected into the primary cooling cylinder 50 through the delivery pipes 56.

[0029] See Figure 8 , Figure 9 and Figure 10 Several refrigeration pipes 36 are fixedly installed on the S-shaped refrigeration pipe 33 inside the secondary cooling cylinder 32. A return pipe 57 is fixedly installed on the primary cooling cylinder 50 by bolts, and the bottom end of the return pipe 57 is installed on the input end of the refrigerator 31 to achieve the effect of refrigerant return circulation in the refrigerator 31.

[0030] A conical air outlet frame 37 is fixedly installed at the bottom of the secondary cooling cylinder 32. A support rod 38 is fixedly installed on the conical air outlet frame 37. An expansion ball 39 is fixedly installed at the center of the support rod 38. The expansion ball 39 is located at the center of the conical air outlet frame 37. The size of the expansion ball 39 controls the flow cross-sectional area of ​​the airflow. Once the area is reduced, the flow velocity of the airflow is increased, the heat exchange efficiency is increased, and the cooling effect is improved.

[0031] Working principle: The heat dissipation bracket 21 on the cabinet door 20 is aligned with the heat dissipation fan 15 on the battery pack 11. The hot air generated by the heat dissipation fan 15 enters the air outlet bracket 22 through the heat conduction hole 23 and the ventilation hole. When the cabinet door 20 is closed, the air outlet bracket 22 enters the conical air inlet bracket 41. The rotary motor 42 on the motor housing 35 drives the rotary shaft 43 to rotate, causing the blower fan 44 inside the blower duct 40 to rotate. This creates a negative pressure at one end of the conical air inlet frame 41 and the air outlet frame 22, allowing the hot air generated by the cooling fan 15 on the battery pack 11 to enter the blower duct 40. The L-shaped ducts 45 around the blower duct 40 evenly distribute the hot air into the primary cooling cylinder 50. Simultaneously, the cooler 31 generates refrigerant, which enters the primary cooling ring 51 through the S-shaped refrigerant pipe 33. The primary cooling ring 51, through the heat conduction ring 55, further cools the primary cooling ring. Cold air is formed inside the cooling ring 52. As the rotating shaft 43 rotates continuously, it drives the mixing blades 54 inside the primary cooling cylinder 50 to rotate. At this time, the hot air inside the primary cooling cylinder 50 will be blown downward. A negative pressure is generated on the top side of the mixing blades 54 inside the primary cooling cylinder 50. At this time, the hot air in the L-shaped duct 45 will be accelerated into the primary cooling cylinder 50. The delivery duct 56 will also draw the cold air in the primary cold zone ring into the primary cooling cylinder 50. The mixing blades 54 will mix and cool the hot and cold air. While mixing, the air is rotated into the secondary cooling cylinder 32. The refrigerant generated in the cooler 31 is injected into the S-shaped refrigerant pipe 33 through the L-shaped liquid outlet pipe 34. The hot gas that is initially cooled in the primary cooling cylinder 50 is thoroughly cooled in the secondary cooling cylinder 32 through the S-shaped refrigerant pipe 33 and the refrigerant branch pipe 36, thus achieving the cooling effect of the hot gas. Finally, it is dispersed to both sides of the battery pack 11 through the conical air outlet frame 37, the L-shaped air outlet pipe 70, the support pipe 71, the cooling branch pipe 72 and the flared mouth 73, thereby achieving the cooling effect of the battery pack 11. At the same time, the hot gas generated by the cooling fan 15 on the battery pack 11 is used for cooling circulation, thereby achieving the effect of circulating constant temperature cooling in the energy storage chamber 10. When the internal temperature rises, the hot air is still relatively hot at the bottom of the secondary cooling cylinder 32. At this time, the expansion ball 39 on the support rod 38 will expand and become larger. Once it becomes larger, it will reduce the airflow cross-sectional area of ​​the conical air outlet frame 37. Once the area is reduced, a larger airflow velocity is generated through the mixing blade 54, resulting in a better heat exchange effect in the primary cooling cylinder 50 and the secondary cooling cylinder 32. When the airflow is blown downward by the mixing blade 54, the internal airflow drives the rotating blade 64 on the first fixed rod 61 to rotate. The first rotating toothed disk 65 on the first fixed rod 61 meshes and drives the second rotating toothed disk 66 on the second fixed rod 63 to rotate. The second fixed rod 63 will drive the outer heat dissipation blade 67 to rotate and blow air, so that the heat dissipation blade 67 blows air to the back of the battery pack 11 to dissipate heat, improve the internal heat dissipation effect, and the structure linkage is ingenious and stable. When the flow rate inside the secondary cooling cylinder 32 increases, the rotation speed of the rotating blade 64 increases, the blowing effect of the heat dissipation blade 67 is enhanced, and the heat dissipation capacity is improved. At the same time, when the rotating blade 64 rotates inside, it blows the gas towards the inner wall to contact the S-shaped refrigeration pipe 33, thereby improving the cooling effect. The design is ingenious. The cold liquid generated by the refrigerator 31 passes through the S-shaped refrigeration pipe 33 and the primary cooling ring 51 to reach the return pipe 57. After passing through the return pipe 57, it enters the refrigerator 31 to achieve the effect of circulating refrigeration. The structure is stable.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A constant temperature cooling device for an energy storage battery compartment, comprising an energy storage compartment (10), characterized in that, Several battery packs (11) are fixedly installed inside the energy storage compartment (10). A cabinet door (20) is connected to the energy storage compartment (10) via a hinge. A heat dissipation rack (21) for cooling the battery packs (11) is fixedly installed on the cabinet door (20). An exhaust rack (22) is fixedly installed at the top of the heat dissipation rack (21). A cooling box (30) is fixedly installed on the side of the energy storage compartment (10) away from the cabinet door (20). A cooling assembly is provided inside the cooling box (30), and the cooling assembly includes: A blower duct (40) is fixedly installed at the top of the interior of the cooling box (30). A conical air inlet frame (41) is fixedly installed on the blower duct (40) on the side near the cabinet door (20). A rotary motor (42) is fixedly installed on the top of the blower duct (40). A rotating shaft (43) is fixedly installed at the output end of the rotary motor (42). Several blower fans (44) are evenly installed on the rotating shaft (43) inside the blower duct (40). Several L-shaped ducts (45) are evenly installed around the outer perimeter of the blower duct (40) by bolts. A primary cooling cylinder (50) is fixedly installed in the middle of the interior of the cooling box (30). The bottom end of the L-shaped conduit (45) is connected to the top of the primary cooling cylinder (50). A primary cooling ring (51) is fixedly installed on the outer periphery of the primary cooling cylinder (50) on the cooling box (30). A primary cooling ring (52) is fixedly installed on the top of the primary cooling ring (51). The bottom of the rotating shaft (43) extends through into the primary cooling cylinder (50). Several mixing blades (54) are installed on the rotating shaft (43) in the primary cooling cylinder (50) through a connecting rod (53). A cooler (31) is fixedly installed at the bottom of the cooling box (30). A secondary cooling cylinder (32) is fixedly installed at the center of the top of the cooler (31). The top of the secondary cooling cylinder (32) is connected to the primary cooling cylinder (50). An S-shaped refrigeration tube (33) is fixedly installed on the inner wall of the secondary cooling cylinder (32) by bolts. The bottom of the S-shaped refrigeration tube (33) is connected to the output end of the cooler (31) through an L-shaped liquid outlet pipe (34). The top of the S-shaped refrigeration tube (33) is connected to the primary cooling ring (51). A first fixing box (60) is fixedly installed on the secondary cooling cylinder (32) on the side near the battery pack (11). A first fixing rod (61) is movably connected to the first fixing box (60) via a bearing. A second fixing box (62) is fixedly installed on the secondary cooling cylinder (32) on the side of the first fixing box (60) via bolts. A second fixing rod (63) is movably connected to the second fixing box (62) via a bearing.

2. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, The heat sink (21) has a plurality of heat conduction holes (23) evenly distributed on one side of the battery pack (11), and ventilation holes (24) are provided between adjacent heat conduction holes (23) on the heat sink (21). The air outlet (22) moves within the conical air inlet (41).

3. The constant temperature cooling device for an energy storage battery compartment according to claim 2, characterized in that, A battery management system box (12) is bolted to the bottom of the battery pack (11) on the energy storage compartment (10). An energy management system (13) and an energy storage converter (14) are bolted to the bottom side of the battery management system box (12) inside the energy storage compartment (10). Each battery pack (11) is equipped with a cooling fan (15), and the air outlet of the cooling fan (15) matches the size and position of the heat conduction hole (23).

4. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, A motor housing (35) is fixedly installed on the top of the cooling box (30). The rotary motor (42) is fixedly installed on the motor housing (35) by bolts. An L-shaped air outlet pipe (70) is fixedly installed on the bottom of the secondary cooling cylinder (32) by bolts. A support pipe (71) is connected to the bottom end of the L-shaped air outlet pipe (70). Cooling branch pipes (72) are fixedly installed at both ends of the top of the support pipe (71). The cooling branch pipes (72) are located on both sides of the bottom of the battery pack (11). Several flared mouths (73) are evenly installed on one side of the battery pack (11) on the cooling branch pipes (72).

5. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, The first fixing rod (61) extends through into the secondary cooling cylinder (32), and a plurality of rotating blades (64) are fixedly installed on the first fixing rod (61) in the secondary cooling cylinder (32) by bolts. A first rotating gear disk (65) is fixedly installed on the first fixing rod (61) in the first fixing box (60).

6. The constant temperature cooling device for an energy storage battery compartment according to claim 5, characterized in that, The first fixed box (60) and the second fixed box (62) are connected through each other. A second rotating gear (66) is fixedly installed on the second fixed rod (63) in the second fixed box (62). The second rotating gear (66) and the first rotating gear (65) are movably meshed. The diameter of the first rotating gear (65) is half the diameter of the second rotating gear (66). A heat dissipation blade (67) is fixedly installed at the top of the second fixed rod (63). The heat dissipation blade (67) is movable on the outside side of the second fixed box (62).

7. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, A heat-conducting ring (55) is fixedly installed inside the primary cooling ring (52), and the bottom of the heat-conducting ring (55) is connected through the primary cooling ring (51). Several delivery conduits (56) are evenly installed between the primary cooling ring (52) and the primary cooling cylinder (50).

8. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, Several refrigeration pipes (36) are fixedly installed on the S-type refrigeration pipe (33) inside the secondary cooling cylinder (32). A return pipe (57) is fixedly installed on the primary cooling cylinder (50) by bolts, and the bottom end of the return pipe (57) is installed on the input end of the refrigerator (31).

9. The constant temperature cooling device for an energy storage battery compartment according to claim 1, characterized in that, A conical air outlet frame (37) is fixedly installed at the bottom of the secondary cooling cylinder (32). A support rod (38) is fixedly installed on the conical air outlet frame (37). An expansion ball (39) is fixedly installed at the center of the support rod (38), and the expansion ball (39) is located at the center of the conical air outlet frame (37).

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