Temperature-adjustable energy storage battery prefabricated cabin

Abstract

The invention relates to the field of energy storage power supplies, in particular to a temperature-adjustable energy storage battery prefabricated cabin which comprises a cabin body and a plurality of battery packs arranged in the cabin body, a cooling system is arranged outside the cabin body, the cabin further comprises a rack arranged in the cabin body, a plurality of cooling boxes are arranged on the rack, and the cooling boxes are arranged in the cabin body. The cooling boxes are in one-to-one correspondence with the battery packs, waterproof boxes for placing the battery packs are arranged in the cooling boxes, accommodating spaces for injecting cooling liquid are reserved between the cooling boxes and the waterproof boxes, and pipelines for allowing wires of the battery packs to penetrate out are arranged between the waterproof boxes and the cooling boxes; the conveying assembly is used for inputting and outputting cooling liquid into and out of the containing space and is used for being connected with a cooling system. The method has the effects that the temperature of the battery pack can be reduced, and the possibility that the temperature is out of control due to too high working temperature of the battery pack and the battery pack catches fire due to too high temperature is reduced.

Description

Technical Field

[0001] The present application relates to the field of energy storage power supplies, and in particular to a temperature-adjustable energy storage battery prefabricated cabin. Background Art

[0002] The energy storage battery prefabricated cabin is a device specially used for storing and managing batteries. Multiple battery clusters are arranged at intervals in the prefabricated cabin. Multiple battery clusters are arranged independently of each other. The battery clusters are constructed by battery modules. Each battery module is composed of multiple battery packs, and several battery packs are connected in series. During the operation of the energy storage power station, the battery pack will cause temperature runaway due to excessive operating temperature. Overheating will cause the battery pack to catch fire and produce smoke, thus affecting the normal operation of the energy storage power station, causing huge economic losses, and generating greater environmental pollution.

[0003] The Chinese patent with the authorization announcement number CN105449549A discloses a prefabricated cabin type substation and a heat dissipation control method. The prefabricated cabin type substation includes a through ventilation duct, a first prefabricated cabin, a second prefabricated cabin and a third prefabricated cabin. The first prefabricated cabin is provided with a transformer body, the second prefabricated cabin is provided with a heat sink, the third prefabricated cabin is provided with a neutral point isolating switch, the heat sink is connected to the transformer body through an oil pipe, the neutral point isolating switch is connected to the transformer body through a wire, the through ventilation duct is located below the first prefabricated cabin and the third prefabricated cabin, the first prefabricated cabin and the third prefabricated cabin are provided with ventilation grilles connected to the through ventilation duct at the bottom of the cabin, the first prefabricated cabin is provided with an exhaust port and a temperature sensor at the top, the first prefabricated cabin is also provided with a fan, the top of the second prefabricated cabin is an open structure, and the side walls of the second prefabricated cabin and the third prefabricated cabin are provided with ventilation shutters. The operation noise and energy consumption of the prefabricated cabin type substation are reduced.

[0004] With respect to the above-mentioned related technologies, the inventor believes that the existing defect is that heat dissipation is achieved by forming a through ventilation duct in the bottom foundation of the prefabricated cabin and utilizing the height difference and the temperature difference between the foundation and the outside. However, digging a through ventilation duct in the foundation will be time-consuming and labor-intensive, resulting in increased installation costs. In addition, due to the depth of the through ventilation duct in the foundation, the heat dissipation capacity is limited, and HVAC equipment needs to be configured for auxiliary heat dissipation or heating. How to design a prefabricated cabin for energy storage batteries with good heat dissipation performance is the technical problem to be solved by the present invention. Summary of the invention

[0005] In order to provide a prefabricated energy storage battery cabin with good heat dissipation performance, the present application provides a temperature-adjustable prefabricated energy storage battery cabin.

[0006] The present application provides a temperature-adjustable energy storage battery prefabricated cabin adopts the following technical solution: A temperature-adjustable energy storage battery prefabricated cabin comprises a cabin and a plurality of battery packs arranged in the cabin, the cabin is provided with a cooling system outside the cabin, and further comprises a rack arranged in the cabin, the rack is provided with a plurality of cooling boxes, the cooling boxes correspond to the battery packs one by one, a waterproof box for placing the battery packs in the cooling boxes is provided in the cooling boxes, a receiving space for injecting coolant is reserved between the cooling boxes and the waterproof box, and a pipe for passing the wires of the battery packs is provided between the waterproof box and the cooling box; It also includes a conveying assembly for inputting and outputting the coolant into and out of the accommodation space, wherein the conveying assembly is used to be connected to the cooling system.

[0007] In a specific feasible implementation scheme, the waterproof box includes a box body for placing a battery pack and a box cover, the opening side wall of the box body is provided with an extrusion slope, the box cover is provided with a resistance ring that resists the extrusion slope, the box cover is provided with a plurality of limit rods, the inner side wall of the box body is provided with a receiving groove for inserting the limit rod, the side of the limit rod close to the receiving groove is provided with a rubber block filling the receiving groove, and the side of the limit rod close to the bottom wall of the box body is provided with a rubber ring.

[0008] In a specific possible implementation scheme, the box body is provided with a receiving ring groove on one side close to its opening, and the box cover is provided with a water-swellable water stop strip inserted into the receiving ring groove.

[0009] In a specific possible implementation manner, the box body is provided with a sealing cover for closing the box body opening, the sealing cover is provided with an extrusion plate for extruding the box cover, and the sealing cover is threadedly connected to the box body.

[0010] In a specific possible implementation scheme, a plurality of heat dissipation pads are provided on the inner bottom wall of the box body, and the battery pack is placed on the heat dissipation pads; A motor is provided in the box cover, and a rotating shaft is coaxially provided on the motor shaft of the motor, and the rotating shaft passes through the box cover, and a rotating rod is provided at one end of the rotating shaft passing through the box cover, and the rotating rod is arranged radially along the rotating shaft, and a scraper for scraping condensed water on the inner top wall of the box cover is provided on the side wall of the rotating rod, and a water flow groove for condensed water to fall is provided on the rotating rod, and the water flow groove is closed on the side close to the rotating rod, and the depth of the water flow groove increases from the side close to the rotating rod to the side away from the rotating rod, and a water outlet pipe connected to the water flow groove is provided on the side of the rotating rod away from the rotating shaft, and the end of the water outlet pipe away from the rotating rod extends to the bottom wall of the box body.

[0011] In a specific possible implementation scheme, a V-shaped groove for collecting condensed water is provided on the inner bottom wall of the box body, and a drainage pipe is provided on the bottom wall of the V-shaped groove, and the drainage pipe passes through the cooling box.

[0012] In a specific feasible implementation scheme, the conveying component includes a conveying pump and an input pipe connected to the cooling system, the input pipe is connected to the water inlet of the conveying pump, the water outlet of the conveying pump is provided with an output pipe, the output pipe is provided with a plurality of branch pipes, the branch pipes are provided with a plurality of water inlet pipes, the water inlet pipes correspond one to one with the cooling box, the cooling box is provided with a liquid outlet pipe, and one end of the drain pipe passes through the cooling box and is connected to the cooling box.

[0013] To summarize, the present application includes at least one of the following beneficial technical effects: placing the battery pack in a waterproof box, and then placing the cooling box on the rack, using the cooling system to inject coolant into the conveying component, and the conveying component injects the coolant into the accommodation space, and the coolant absorbs the heat dissipated by the battery pack, thereby reducing the temperature of the battery pack and reducing the possibility of temperature runaway due to excessively high operating temperature and the possibility of the battery pack catching fire due to overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a temperature-adjustable energy storage battery prefabricated cabin according to an embodiment of the present application.

[0015] Figure 2 It is a schematic diagram of the structure of the liquid outlet pipe and the main pipe in the embodiment of the present application.

[0016] Figure 3 It is a cross-sectional view showing the cooling box and the waterproof box.

[0017] Figure 4 It is a schematic diagram of the structure of the scraper, rotating rod and water flow trough in the embodiment of the present application.

[0018] Description of the accompanying drawings: 1, cabin; 2, battery pack; 3, rack; 30, support frame; 4, cooling box; 40, placement groove; 41, installation cover; 5, waterproof box; 50, box body; 51, box cover; 52, extrusion slope; 53, resistance ring; 54, limit rod; 55, receiving groove; 56, rubber block; 57, rubber ring; 58, receiving ring groove; 59, water-swelling water stop strip; 500, cover; 501, Extrusion plate; 502, heat dissipation pad; 503, motor; 504, rotating shaft; 506, rotating rod; 507, scraper; 508, water flow trough; 510, water outlet pipe; 511, V-shaped groove; 512, drain pipe; 6, accommodating space; 7, pipeline; 8, conveying component; 80, conveying pump; 81, input pipe; 82, output pipe; 83, branch pipe; 84, water inlet pipe; 85, liquid outlet pipe; 86, main pipe. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4 This application is described in further detail.

[0020] The embodiment of the present application discloses a temperature-adjustable prefabricated energy storage battery cabin.

[0021] Reference Figure 1 and Figure 2 A temperature-adjustable energy storage battery prefabricated cabin includes a cabin 1 and a plurality of battery packs 2 arranged in the cabin 1. A cooling system is provided outside the cabin 1. In this embodiment, the cooling system may be a water cooling system (not shown in this embodiment).

[0022] The energy storage battery prefabricated cabin also includes a rack 3 arranged in the cabin body 1. In this embodiment, the rack 3 can be three support racks 30, and the three support racks 30 are arranged side by side. Each support rack 30 is provided with a plurality of cooling boxes 4. In this embodiment, five cooling boxes 4 are arranged on the same support rack 30. The cooling boxes 4 correspond to the battery packs 2 one by one. The cooling boxes 4 are provided with a placement groove 40. The placement groove 40 is provided with a waterproof box 5 for the battery pack 2 to be placed. The cooling box 4 is provided with a mounting cover 41 for closing the placement groove 40. An accommodating space 6 for injecting coolant is reserved between the cooling box 4 and the waterproof box 5. A bracket for supporting the waterproof box 5 is provided in the cooling box 4. A pipe 7 for passing the wires of the battery pack 2 is provided between the waterproof box 5 and the cooling box 4. It also includes a conveying assembly 8 for inputting and outputting a coolant into and out of the accommodation space 6. The conveying assembly 8 is used to be connected to a cooling system. In this embodiment, the coolant is water.

[0023] The conveying assembly 8 includes a conveying pump 80 and an input pipe 81 connected to the cooling system. The input pipe 81 is connected to the water inlet of the conveying pump 80. The water outlet of the conveying pump 80 is provided with an output pipe 82. The output pipe 82 is provided with a plurality of branch pipes 83. The branch pipes 83 are provided with a plurality of water inlet pipes 84. The water inlet pipes 84 correspond to the cooling box 4 one by one. The cooling box 4 is provided with a liquid outlet pipe 85. The liquid outlet pipe 85 is provided with a one-way valve. The plurality of liquid outlet pipes 85 are connected by a main pipe 86. The main pipe 86 is connected to the cooling system, so that water resources can be recycled.

[0024] Reference Figure 3 The waterproof box 5 includes a box body 50 and a box cover 51. The box body 50 is provided with an opening for placing the battery pack 2. The side wall of the opening of the box body 50 is provided with an extrusion slope 52. The box cover 51 is provided with a contact ring 53 that contacts the extrusion slope 52. The box body 50 is provided with a receiving ring groove 58 on the side close to the opening thereof. The receiving ring groove 58 is arranged along the circumference of the box body 50. The box cover 51 is provided with a water-swelling water stop strip 59 inserted into the receiving ring groove 58.

[0025] The box body 50 is provided with a cover 500 for closing the opening of the box body 50, and the cover 500 is provided with a groove for the box body 50 to extend into, and the bottom wall of the groove is provided with an extrusion plate 501 for extruding the box cover 51. The extrusion plate 501 is a rubber extrusion plate 501 in this embodiment. The cover 500 is threadedly connected to the box body 50, and the thread is set on the groove wall.

[0026] The box cover 51 is provided with a plurality of limit rods 54. In the present embodiment, there are four limit rods 54, and an installation space for placing the battery pack 2 is reserved between the four limit rods. The inner bottom wall of the box body 50 is provided with a receiving groove 55 for inserting the limit rod 54. A rubber block 56 for filling the receiving groove 55 is provided on the side of the limit rod 54 close to the receiving groove 55, and a guiding inclined surface is provided on the outer wall of the rubber block 56. A rubber ring 57 is provided on the side of the limit rod 54 close to the inner bottom wall of the box body 50, and the rubber ring 57 abuts against the inner bottom wall of the box body 50. In some other embodiments, the rubber ring 57 and the rubber block 56 can also be rings with rectangular or triangular cross-sections.

[0027] During installation, first place the battery pack 2 in the box body 50, and then put on the box cover 51. When putting on the box cover 51, push the rubber block 56 into the receiving groove 55, and the rubber ring 57 contacts the inner bottom wall of the box body 50. By squeezing the box body 50 by the rubber ring 57 and the rubber block 56 at the same time, the limit rod 54 can be prevented from rebounding, and a gap between the box cover 51 and the box body 50 to cause water leakage can be avoided as much as possible. At the same time, the water-swelling water-stop strip 59 is squeezed into the receiving ring groove 58. Finally, put on the cover 500, and the squeezing plate 501 squeezes the box cover 51, forcing the contact ring 53 to press against the squeezing slope 52, which can reduce the possibility of water leakage.

[0028] Reference Figure 3 Since the accommodating space 6 is filled with coolant, condensed water is easily formed on the inner side walls of the box body 50 and the box cover 51, so a V-shaped groove 511 is provided on the inner bottom wall of the box body 50 for the condensed water to gather, and a drain pipe 512 is provided on the bottom wall of the V-shaped groove 511. The drain pipe 512 passes through the cooling box 4 and is provided with a one-way valve. One end of the drain pipe 512 passes through the cooling box 4 and is connected to the liquid outlet pipe 85 through a three-way pipe.

[0029] A plurality of heat dissipation pads 502 are provided on the inner bottom wall of the box body 50, and the battery pack 2 is placed on the heat dissipation pads 502; on the one hand, the battery pack 2 is elevated to prevent condensed water on the inner bottom wall of the box body 50 from being contaminated on the battery pack 2; on the other hand, the heat generated by the battery pack 2 can be transferred to the box body 50 through the heat dissipation pads 502 in time, and the coolant exchanges heat with the box body 50, so that the battery pack 2 can be cooled in time.

[0030] A single heat dissipation pad 502 is arranged along the radial direction of the box body 50, and a plurality of heat dissipation pads 502 are evenly distributed along the circumference of the box body 50; this prevents condensed water from gathering in the V-shaped groove 511, and avoids residual water stains in the box body 50 as much as possible, and avoids the evaporation of water stains to cause hot air to affect the heating of the battery pack 2.

[0031] A dew point sensor for detecting the surface temperature of the box body 50 is provided on the inner wall of the box body 50, a motor 503 is provided in the box cover 51, and a controller is also provided in the box cover 51. The controller is used to receive the data signal detected by the dew point sensor. When the temperature of the inner wall surface of the box body 50 is lower than the dew point temperature, the motor 503 starts.

[0032] refer to Figure 3 and Figure 4 The motor 503 of the motor 503 is coaxially provided with a rotating shaft 504, and the rotating shaft 504 passes through the box cover 51. A rotating rod 506 is provided at one end of the rotating shaft 504 passing through the box cover 51. The rotating rod 506 is arranged along the radial direction of the rotating shaft 504. A scraper 507 for scraping condensed water on the inner top wall of the box cover 51 is provided on the side wall of the rotating rod 506. The longitudinal section of the scraper 507 is an isosceles triangle. The tip of the scraper 507 conflicts with the inner top wall of the box cover 51. The rotating rod 506 is provided with a water flow trough 508 for the condensed water to fall. There are two water troughs 508 in this embodiment, and the scraper 507 is in the middle of the water trough 508. The side of the water trough 508 close to the rotating rod 506 is closed. The depth of the water trough 508 increases from the side close to the rotating rod 506 to the side away from the rotating rod 506. The end of the rotating rod 506 away from the rotating shaft 504 is provided with a water outlet pipe 510. The water outlet pipe 510 is a hose in this embodiment. The water outlet pipe 510 is connected to the water trough 508, and the end of the water outlet pipe 510 away from the rotating rod 506 extends to the bottom wall of the box body 50.

[0033] When the dew point sensor detects that the temperature of the inner wall of the box body 50 is lower than the dew point temperature, the motor 503 starts, and the motor 503 drives the rotating rod 506 to rotate, and the rotating rod 506 drives the scraper 507 to rotate. The scraper 507 scrapes the inner wall of the box cover 51, and the scraper 507 scrapes the condensed water on the inner wall of the box cover 51. The condensed water flows into the water flow trough 508 along the scraper 507, so as to minimize the condensed water from falling on the battery pack 2 and affecting the battery pack 2.

[0034] The condensed water flows into the water storage tank 509, and is collected in the V-shaped groove 511 along the water outlet pipe 510, and is finally transported to the liquid outlet pipe 85, so that water resources can be recycled and waste of water resources can be avoided.

[0035] The implementation principle of a temperature-adjustable energy storage battery prefabricated cabin in the embodiment of the present application is as follows: first, the battery pack 2 is installed in the waterproof box 5, and then the cooling box 4 is placed on the rack 3. After installation, the coolant in the cooling system is injected into the accommodating space 6 using the conveying assembly 8. The heat generated by the battery pack 2 is transferred to the waterproof box 5, and the coolant outside the waterproof box 5 is timely exchanged with the waterproof box 5. In this way, overheating of the battery pack 2 can be avoided as much as possible, and the possibility of temperature runaway of the battery pack 2 due to excessively high operating temperature and fire of the battery pack 2 caused by overheating can be reduced.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature-adjustable energy storage battery prefabricated cabin, comprising a cabin (1) and a plurality of battery packs (2) arranged in the cabin (1), wherein a cooling system is arranged outside the cabin (1), and wherein: It also includes a rack (3) arranged in the cabin (1), a plurality of cooling boxes (4) being arranged on the rack (3), the cooling boxes (4) corresponding one to one with the battery packs (2), a waterproof box (5) for placing the battery packs (2) being arranged in the cooling boxes (4), a receiving space (6) for injecting coolant being reserved between the cooling boxes (4) and the waterproof box (5), and a pipe (7) for passing the wires of the battery packs (2) through being arranged between the waterproof box (5) and the cooling boxes (4); It also includes a conveying component (8) for inputting and outputting the coolant into and out of the receiving space (6), and the conveying component (8) is used to be connected to a cooling system.

2. The temperature-adjustable energy storage battery prefabricated cabin according to claim 1, characterized in that: The waterproof box (5) comprises a box body (50) for placing the battery pack (2) and a box cover (51); an extrusion slope (52) is provided on the opening side wall of the box body (50); a resistance ring (53) for resisting the extrusion slope (52) is provided on the box cover (51); a plurality of limit rods (54) are provided on the box cover (51); a receiving groove (55) for inserting the limit rod (54) is provided on the inner side wall of the box body (50); a rubber block (56) for filling the receiving groove (55) is provided on the side of the limit rod (54) close to the receiving groove (55); and a rubber ring (57) is provided on the side of the limit rod (54) close to the inner bottom wall of the box body (50).

3. The temperature-adjustable energy storage battery prefabricated cabin according to claim 2, characterized in that: The box body (50) is provided with a receiving annular groove (58) on one side close to the opening thereof, and the box cover (51) is provided with a water-swelling water stop strip (59) inserted into the receiving annular groove (58).

4. The temperature-adjustable energy storage battery prefabricated cabin according to claim 2, characterized in that: The box body (50) is provided with a cover (500) for closing the opening of the box body (50), the cover (500) is provided with an extrusion plate (501) for extruding the box cover (51), and the cover (500) is threadedly connected to the box body (50).

5. The temperature-adjustable energy storage battery prefabricated cabin according to claim 2, characterized in that: A plurality of heat dissipation pads (502) are provided on the inner bottom wall of the box body (50), and the battery pack (2) is placed on the heat dissipation pads (502); A motor (503) is provided inside the box cover (51); a rotating shaft (504) is coaxially provided with the motor (503) shaft of the motor (503); the rotating shaft (504) passes through the box cover (51); a rotating rod (506) is provided at one end of the rotating shaft (504) passing through the box cover (51); the rotating rod (506) is arranged along the radial direction of the rotating shaft (504); a scraper (507) for scraping condensed water on the inner top wall of the box cover (51) is provided on the side wall of the rotating rod (506); 06) is provided with a water trough (508) for condensed water to fall, the water trough (508) is closed on the side close to the rotating rod (506), the depth of the water trough (508) increases from the side close to the rotating rod (506) to the side away from the rotating rod (506), and the side of the rotating rod (506) away from the rotating shaft (504) is provided with a water outlet pipe (510) connected to the water trough (508), and one end of the water outlet pipe (510) away from the rotating rod (506) extends to the bottom wall of the box body (50).

6. The temperature-adjustable energy storage battery prefabricated cabin according to claim 5, characterized in that: A V-shaped groove (511) for collecting condensed water is provided on the inner bottom wall of the box body (50), a drainage pipe (512) is provided on the bottom wall of the V-shaped groove (511), and the drainage pipe (512) passes through the cooling box (4).

7. The temperature-adjustable energy storage battery prefabricated cabin according to claim 6, characterized in that: The delivery assembly (8) comprises a delivery pump (80) and an input pipe (81) connected to the cooling system, the input pipe (81) being connected to the water inlet of the delivery pump (80), the water outlet of the delivery pump (80) being provided with an output pipe (82), the output pipe (82) being provided with a plurality of branch pipes (83), the branch pipes (83) being provided with a plurality of water inlet pipes (84), the water inlet pipes (84) corresponding one to one with the cooling box (4), the cooling box (4) being provided with a liquid outlet pipe (85), and one end of the drainage pipe (512) passing through the cooling box (4) being connected to the liquid outlet pipe (85).

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