Distributed liquid cooling energy storage cabinet

Abstract

The invention belongs to the technical field of energy storage equipment, particularly relates to a distributed liquid cooling energy storage cabinet, and aims to solve the two major problems of an existing cabinet body: 1, the internal space is limited, so that a circulating cooling system and an energy storage module are difficult to maintain; and secondly, when liquid outlet / liquid return branch pipes are detached, residual cooling liquid is prone to dripping to cause pollution, and the following scheme is provided: the liquid outlet / liquid return branch pipe comprises a base, a box body is fixedly arranged at the top of the base, two mounting frames are fixedly arranged in the box body, and a plurality of energy storage modules are arranged in the mounting frames. The cooling liquid can be efficiently discharged and circulated through an inserting or separating structure of the movable sliding ring and the connecting pipe in cooperation with the discharging assembly, cooling operation of the energy storage module is guaranteed, meanwhile, circulation of the cooling liquid in a certain energy storage module can be independently controlled, meanwhile, the water tank is movably arranged, and maintenance of the energy storage module and supplementing of the cooling liquid are facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to a distributed liquid-cooled energy storage cabinet. Background Art

[0002] Energy storage cabinets, as electrical energy storage devices, are composed of a battery pack, a PCS converter, and a BMS control chip. This equipment generates heat during the charging and discharging process, requiring thermal management through air or liquid cooling systems.

[0003] After searching, the invention with the publication number CN118659064B discloses a distributed industrial liquid cooling energy storage cabinet that can be quickly installed. However, the energy storage cabinet has the following disadvantages during use:

[0004] 1. The energy storage module and cooling system coexist in a compact cabinet. The dual maintenance requirements lead to insufficient operating space and reduced maintenance efficiency.

[0005] 2. When disconnecting the liquid pipeline, the residual coolant drips due to gravity, polluting the environment inside the cabinet and increasing the cleaning burden. Summary of the Invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art, such as the limited space inside the cabinet, which makes maintenance of the circulating cooling system and energy storage module difficult when the internal space is small; and when the liquid outlet pipe and the liquid return pipe are disconnected, the coolant remaining in the pipe will drip, affecting the cleanliness of the interior of the cabinet. A distributed liquid-cooled energy storage cabinet is proposed to solve the shortcomings of the prior art, such as the limited space inside the cabinet, which makes maintenance of the circulating cooling system and energy storage module difficult; and when the liquid outlet pipe and the liquid return pipe are disconnected, the coolant remaining in the pipe will drip, affecting the cleanliness of the interior of the cabinet.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A distributed liquid-cooled energy storage cabinet, comprising:

[0009] A base, wherein a box body is fixedly provided on the top of the base, two mounting racks are provided in the box body, a plurality of energy storage modules are installed in the mounting racks, and two connecting pipes are provided on the inner side of each energy storage module;

[0010] A movable water tank is provided on the top of the base, the top of the water tank is connected to a drain pipe and a water inlet pipe, and the drain pipe and the water inlet pipe are fixed at a distance by a plurality of first connecting rods; a water pump is provided on the top of the water tank, the drainage end of the water pump is connected to the water inlet pipe, and the outer walls of the drain pipe and the water inlet pipe are both connected to an extension pipe, and the outer wall of the extension pipe is slidably sleeved with a sliding ring that is plugged into the connecting pipe;

[0011] A driving mechanism is provided in the box body and is used to drive the sliding ring to be plugged into or disconnected from the connecting pipe;

[0012] The discharge assembly is arranged on the sliding ring and is used to discharge the coolant remaining in the connecting pipe into the water tank.

[0013] In a possible design, at least two guide rails are fixedly provided on the top of the base, the sliding ends of the guide rails are connected to a movable plate, and the water tank is fixed on the top of the movable plate.

[0014] In one possible design, the driving mechanism includes a fixed plate, an electric push rod and a second connecting rod. The fixed plate is fixed to the inner wall of the box. The electric push rod is installed on the fixed plate through a fixed seat. The output end of the electric push rod is connected to the second connecting rod. The second connecting rod passes through multiple vertically sliding driving blocks. The driving blocks interfere with the horizontally sliding splint to drive the sliding ring to move.

[0015] In a possible design, a waist-shaped hole is opened on one side of the splint to form an insertion rod, and a fixing block is provided on the fixing plate. The fixing block is connected to the splint through a guide rod and a spring, and the spring is used to drive the splint to reset and move.

[0016] In a possible design, a first limiting portion that interferes with the connecting pipe is provided inside the sliding ring, and a second limiting portion is provided at the outer end of the extension pipe.

[0017] In a possible design, a silicone seal ring is embedded in the sliding ring, and the compression amount is 20%-25%.

[0018] In a possible design, the discharge assembly includes a plurality of tees connected to the outer wall of the drain pipe, and the other two ends of the tees are respectively connected to the sliding ring to collect the coolant.

[0019] In a possible design, the driving block is composed of a driving portion and an extension portion, which are connected by a connecting portion. The extension portion is provided with a bolt to lock the second connecting rod to achieve independent control of the driving block.

[0020] In a possible design, a limiting frame is fixed on the top of the two sliding rings in the same group, and the limiting frame is plugged into the plug rod of the clamping plate to link the sliding rings to move.

[0021] In a possible design, the inner walls of the two corresponding left and right groups of connecting pipes are inclined toward the middle of the box to promote the flow and discharge of coolant.

[0022] Beneficial effects: In the present invention, the distributed liquid-cooled energy storage cabinet can efficiently discharge the coolant retained in the energy storage module into the water tank by providing a movable sliding ring and a plug-in or disengagement structure of the connecting pipe in conjunction with a discharge assembly. When maintenance is required, the driving mechanism drives the sliding ring to disengage from the connecting pipe. The coolant in the connecting pipe will naturally flow out due to the inclined setting, and flow into the drain pipe through the sliding ring and the tee pipe, and finally into the water tank, thereby achieving rapid discharge of the coolant and effectively collecting the remaining coolant to prevent the coolant from dripping onto other components.

[0023] In the distributed liquid-cooled energy storage cabinet of the present invention, the electric push rod drives multiple drive blocks to move vertically through the second connecting rod, and the drive blocks push the clamping plate to move horizontally, thereby driving the sliding ring. This design makes the driving process stable and reliable, can accurately control the movement of the sliding ring, and ensures the accuracy of the plugging or disengaging action of the sliding ring and the connecting pipe. At the same time, the drive block is composed of a driving part and an extension part, and the extension part can be fixed by contacting the second connecting rod with a bolt, which makes it easy to drive a certain drive block to move at will, and realize the independent control of the plugging of a certain connecting pipe and the sliding ring.

[0024] In the present invention, the inner walls of the two corresponding groups of connecting pipes on the left and right sides of the distributed liquid-cooled energy storage cabinet are inclined toward the middle of the box body. This design facilitates the flow of coolant in the connecting pipes. At the same time, the inclined connecting pipes also facilitate the discharge of coolant, reducing the residual coolant in the connecting pipes and ensuring the cleanliness and efficient operation of the cooling system.

[0025] In the present invention, the plug-in or detachable structure of the movable sliding ring and the connecting pipe, in conjunction with the discharge assembly, can efficiently discharge and circulate the coolant to ensure the cooling operation of the energy storage module. At the same time, the coolant circulation in a certain energy storage module can be individually controlled. At the same time, the water tank can be movably arranged to facilitate the maintenance of the energy storage module and the replenishment of coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a distributed liquid-cooled energy storage cabinet proposed in the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a distributed liquid-cooled energy storage cabinet proposed in the present invention from another perspective;

[0028] Figure 3 This is a schematic diagram of the installation structure of the movable plate and base of a distributed liquid-cooled energy storage cabinet proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the water tank and water pipe installation structure of a distributed liquid-cooled energy storage cabinet proposed by the present invention;

[0030] Figure 5This is a schematic diagram of the cross-sectional structure of the water pipes of a distributed liquid-cooled energy storage cabinet proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of a distributed liquid-cooled energy storage cabinet proposed by the present invention before the electric push rod is extended;

[0032] Figure 7 This is a schematic diagram of the drive block and connecting rod structure of a distributed liquid-cooled energy storage cabinet proposed by the present invention.

[0033] In the figure: 1. Base; 2. Box body; 3. Mounting frame; 4. Energy storage module; 5. Drain pipe; 6. Movable plate; 7. Water tank; 8. Connecting pipe; 9. Water inlet pipe; 10. Water pump; 11. Guide rail; 12. First connecting rod; 13. Extension pipe; 14. Sliding ring; 15. Tee pipe; 16. First limiting part; 17. Second limiting part; 18. Limiting frame; 19. Fixing plate; 20. Fixing seat; 21. Electric push rod; 22. Second connecting rod; 23. Driving block; 24. Clamp; 25. Waist-shaped hole; 26. Fixing block; 27. Guide rod; 28. Spring; 29. Bolt; 30. Driving part; 31. Extension part; 32. Connecting part; 33. Insert rod. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0035] Example 1

[0036] Reference Figure 1-Figure 7 An energy storage cabinet includes a base 1 constructed of a Q235B carbon steel welded frame (wall thickness ≥ 5mm). A housing 2 is mounted on top of the base 1, either by welding or securing with M12 stainless steel bolts. Housing 2 is constructed of 304 stainless steel (wall thickness 2mm). Inside housing 2, two galvanized steel mounting racks 3 (load-bearing capacity ≥ 500kg / rack) are welded or bolted together. Multiple energy storage modules 4 are placed within these racks. Each module is connected to two connecting pipes 8 for coolant supply and discharge.

[0037] A movable water tank 7 is set on the top of the base 1. The water tank 7 is an integral part of 304 stainless steel (capacity 100-300L, wall thickness 3mm). The specific method is: at least two high-strength aluminum alloy guide rails 11 are fixed on the top of the base 1, and the sliding ends of the two guide rails 11 are fixed to the same movable plate 6 by welding or bolts. The water tank 7 is fixed to the top of the movable plate 6 by welding or bolts, so that the water tank 7 can move on the top of the base 1 along the guide rails 11. In this way, when the water tank 7 slides out from the base 1, the maintenance space inside the box body 2 can be increased. At the same time, after the water tank 7 is moved out, the water tank 7 can be fixed by means of plug-in rods, etc., so that the staff can stand on the water tank 7 to install the higher energy storage module 4, and can also limit the door body to avoid the wind blowing the door body to swing during maintenance, causing damage to the internal maintenance personnel.

[0038] A drain pipe 5 for draining liquids is connected to the top of the water tank 7, along with a water inlet pipe 9 for infusion. Multiple first connecting rods 12 are welded or bolted between the drain pipe 5 and the water inlet pipe 9 to maintain a fixed distance between them and prevent them from shaking and causing errors. A water pump 10 is also welded or bolted to the top of the water tank 7. The water inlet end of the water pump 10 extends into the water tank 7 through a pipe, and the water outlet end of the water pump 10 is connected to the bottom end of the water inlet pipe 9.

[0039] Extension tubes 13, corresponding to the connecting tubes 8, are installed on the outer walls of both the drain pipe 5 and the water inlet pipe 9. Sliding rings 14, which are inserted into the connecting tubes 8, are slidably mounted on the outer walls of the extension tubes 13. Furthermore, the inner walls of the two corresponding sets of connecting tubes 8 on the left and right sides are tilted toward the center of the housing 2. This design facilitates the flow and drainage of coolant. The sliding rings 14 are embedded with a silicone sealing ring (Shore hardness 50±5) for sealing. When inserted into the connecting tubes 8, they compress by 20-25%, and the sliding rings 14 and the extension tubes 13 have a clearance fit (tolerance H7 / g6).

[0040] A driving mechanism is provided in the housing 2 to drive the sliding ring 14 to move and connect or disconnect with the connecting pipe 8. The specific structure is as follows:

[0041] A fixing plate 19 is fixed on the inner wall of one side of the box body 2 by welding or bolts, a fixing seat 20 is fixed on one side of the fixing plate 19 by welding or bolts, and an electric push rod 21 is fixed on the fixing seat 20 by welding or bolts. The output end of the electric push rod 21 is fixedly connected to a second connecting rod 22 by welding or bolts.

[0042] Multiple driver blocks 23 are mounted vertically on one side of the fixed plate 19 via slide rails and sliders. These driver blocks 23 are slidably mounted on the second connecting rod 22. The driver blocks 23 consist of a driver portion 30 and an extension portion 31, with a connecting portion 32 disposed between the driver portion 30 and the extension portion 31. A bolt 29 is threaded through one side of the extension portion 31. By tightening the bolt 29 so that one end contacts the second connecting rod 22, the driver blocks 23 are secured to the second connecting rod 22.

[0043] Multiple drive blocks 23 are connected to the output end of the electric push rod 21, specifically via a second connecting rod 22 that extends and secures within each of the drive blocks 23. A clamping plate 24, corresponding to the extension tube 13, is mounted on one side of the fixed plate 19 and slides laterally via a slide rail and a slider. The inner side of the clamping plate 24 contacts the drive blocks 23. When the electric push rod 21 extends or retracts, it moves the second connecting rod 22, which in turn drives the drive blocks 23 vertically, pushing the clamping plate 24 laterally.

[0044] Multiple discharge assemblies are arranged on the corresponding sliding rings 14, and are used to discharge the coolant retained in the connecting pipe 8 into the water tank 7. The specific structure is: multiple tee pipes 15 arranged on the outer wall of the drain pipe 5 are connected, and the other two ends of the tee pipes 15 are respectively connected to the corresponding sliding rings 14, so that the two sliding rings 14 on the same side can be connected to the drain pipe 5, which can facilitate the collection of excess coolant and prevent the coolant from dripping below.

[0045] This application can be used in the field of energy storage devices, and can also be used in other fields applicable to this application.

[0046] Example 2

[0047] refer to Figure 1-Figure 7 Improved on the basis of Example 1: A distributed liquid-cooled energy storage cabinet, applicable to the field of energy storage equipment, has a waist-shaped hole 25 (a polytetrafluoroethylene bushing can be inserted into the hole) corresponding to the extension tube 13, formed on one side of the clamping plate 24, and has insertion rods 33 formed on both sides. A fixed block 26 corresponding to the clamping plate 24 is fixedly mounted on one side of the fixing plate 19 by welding or bolting. A guide rod 27 is slidably provided through one side of the fixing block 26. One end of the guide rod 27 is fixedly connected to the clamping plate 24 by welding or bolting. A spring 28 is sleeved on the outer wall of the guide rod 27. The two ends of the spring 28 are respectively fixedly connected to the adjacent sides of the clamping plate 24 and the fixing block 26, and are used to drive the clamping plate 24 to reset and move. The guide rod 27 is a φ10mm 304 stainless steel smooth shaft, and the spring 28 is a 304 stainless steel compression spring (stiffness coefficient 15N / mm).

[0048] A first stopper 16 is provided inside the sliding ring 14 to abut against the connecting tube 8, and a second stopper 17 is provided on the outer end of the extension tube 13 to limit the position of the sliding ring 14. A common stopper 18, which engages with the insertion rod 33, is fixed to the tops of the two sliding rings 14 in the same group. This allows movement of the clamping plate 24 to drive movement of both sliding rings 14, eliminating the need for manual resetting.

[0049] During installation, first install the energy storage module 4 on the mounting frame 3, then add coolant into the water tank 7, and manually push the left and right sets of sliding rings 14 closer to each other, and then push the movable plate 6 to move, which can drive the drain pipe 5 and the water inlet pipe 9 to move between the two sets of mounting frames 3 until they are in place;

[0050] When the movable plate 6 is pushed to move, the electric push rod 21 is started to extend. During the extension of the electric push rod 21, the multiple driving blocks 23 can be driven downward by the bolt 29 and the second connecting rod 22. The downward movement of the driving block 23 can make the driving portion 30 away from the clamping plate 24, and the extension portion 31 close to the clamping plate 24. At this time, the clamping plate 24 can be reset and moved under the action of the spring 28, which can drive the clamping plate 24 to contact one side of the extension portion 31, so that the connecting tube 8 corresponds to the waist-shaped hole 25. The movable plate 6 continues to push, which can make the insertion rod 33 inserted into the corresponding limit frame 18, and the connecting tube 8 contacts one side of the waist-shaped hole 25. At this time, the connecting tube 8 corresponds to the extension tube 13;

[0051] When the second connecting rod 22 is retracted, the driving block 23 can be driven to move upward. During the upward movement of the driving block 23, the connecting portion 32 can be used to drive the clamping plates 24 on both sides to move away from each other. The movement of the clamping plate 24 can drive the sliding ring 14 to move through the limiting frame 18, and can drive the sliding ring 14 to be plugged into the connecting pipe 8 until the second connecting rod 22 is retracted. At this time, one side of the sliding ring 14 conflicts with the second limiting portion 17, and the first limiting portion 16 conflicts with the connecting pipe 8, so that the extension pipe 13 and the connecting pipe 8 can be connected. Then the water pump 10 is started. During the startup of the water pump 10, the water in the water tank 7 can be transported to each energy storage module 4 to cool the energy storage module 4. At the same time, the coolant in the energy storage module 4 can be discharged into the water tank 7 again through another set of connecting pipes 8 and the drain pipe 5 for circulation.

[0052] When maintenance is required on the energy storage module 4 at a certain height, first tighten the remaining bolts 29 so that one end of the bolt 29 is away from the second connecting rod 22, and then start the second connecting rod 22 to extend, which can drive the corresponding driving block 23 to move downward, and the splint 24 can reset and move under the action of the spring 28, which can drive the sliding ring 14 on the connecting pipe 8 to move. When the hole of the tee pipe 15 in the sliding ring 14 is exposed, the remaining liquid in the connecting pipe 8 will flow into the drain pipe 5 through the tee pipe 15, and return to the water tank 7 through the drain pipe 5.

[0053] However, as is well known to those skilled in the art, the working principle and wiring method of the water pump 10 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selection according to their needs or convenience.

[0054] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A distributed liquid-cooled energy storage cabinet, characterized in that: include: A base (1), a box (2) is fixedly provided on the top of the base (1), two mounting frames (3) are provided in the box (2), a plurality of energy storage modules (4) are installed in the mounting frames (3), and two connecting pipes (8) are provided on the inner side of each energy storage module (4); A movable water tank (7) is arranged on the top of the base (1); a drain pipe (5) and a water inlet pipe (9) are connected to the top of the water tank (7); a plurality of first connecting rods (12) are used to fix the distance between the drain pipe (5) and the water inlet pipe (9); a water pump (10) is provided on the top of the water tank (7); a drainage end of the water pump (10) is connected to the water inlet pipe (9); an extension pipe (13) is provided on the outer wall of the drain pipe (5) and the water inlet pipe (9); a sliding ring (14) is slidably sleeved on the outer wall of the extension pipe (13) and plugged into the connecting pipe (8); A driving mechanism is provided in the box body (2) and is used for driving the sliding ring (14) to be connected to or disconnected from the connecting pipe (8); The discharge assembly is arranged on the sliding ring (14) and is used for discharging the coolant remaining in the connecting pipe (8) into the water tank (7).

2. A distributed liquid-cooled energy storage cabinet according to claim 1, characterized in that: At least two guide rails (11) are fixedly provided on the top of the base (1), the sliding ends of the guide rails (11) are connected to a movable plate (6), and the water tank (7) is fixed on the top of the movable plate (6).

3. A distributed liquid-cooled energy storage cabinet according to claim 2, characterized in that: The driving mechanism comprises a fixed plate (19), an electric push rod (21) and a second connecting rod (22); the fixed plate (19) is fixed to the inner wall of the box body (2); the electric push rod (21) is installed on the fixed plate (19) through a fixing seat (20); the output end of the electric push rod (21) is connected to the second connecting rod (22); the second connecting rod (22) passes through a plurality of vertically sliding driving blocks (23); the driving blocks (23) contact with the horizontally sliding clamping plates (24) to drive the sliding ring (14) to move.

4. A distributed liquid-cooled energy storage cabinet according to claim 3, characterized in that: A waist-shaped hole (25) is provided on one side of the clamping plate (24) to form an inserting rod (33). A fixing block (26) is provided on the fixing plate (19). The fixing block (26) is connected to the clamping plate (24) through a guide rod (27) and a spring (28). The spring (28) is used to drive the clamping plate (24) to reset and move.

5. The distributed liquid-cooled energy storage cabinet according to claim 3, characterized in that: A first limiting portion (16) that contacts the connecting pipe (8) is provided inside the sliding ring (14), and a second limiting portion (17) is provided at the outer end of the extension pipe (13).

6. A distributed liquid-cooled energy storage cabinet according to claim 2, characterized in that: The sliding ring (14) is embedded with a silicone seal ring, and the compression amount is 20%-25%.

7. A distributed liquid-cooled energy storage cabinet according to any one of claims 1 to 6, characterized in that: The discharge assembly comprises a plurality of tee pipes (15) connected to the outer wall of the drain pipe (5), and the other two ends of the tee pipes (15) are respectively connected to the sliding rings (14) to collect the coolant.

8. The distributed liquid-cooled energy storage cabinet according to claim 5, characterized in that: The driving block (23) is composed of a driving portion (30) and an extending portion (31), which are connected via a connecting portion (32). The extending portion (31) is provided with a bolt (29) to lock the second connecting rod (22) to achieve independent control of the driving block (23).

9. The distributed liquid-cooled energy storage cabinet according to claim 1, characterized in that: A limiting frame (18) is fixedly provided on the top of the two sliding rings (14) in the same group. The limiting frame (18) is plugged into the insertion rod (33) of the clamping plate (24) to move the sliding ring (14) in a linked manner.

10. The distributed liquid-cooled energy storage cabinet according to claim 8, characterized in that: The inner walls of the two corresponding groups of connecting pipes (8) on the left and right are inclined toward the middle of the box body (2) to promote the flow and discharge of the cooling liquid.

Images