Container for energy storage power station and cascade utilization energy storage power station

Abstract

The utility model discloses a kind of containers for energy storage power station, comprising: box, top plate and lifting assembly, accommodating cavity for accommodating battery pack is formed in the box interior, and its top is provided with the opening being communicated with accommodating cavity, top plate is set relative to opening, lifting assembly includes slider and driving part, slider is connected to top plate, and along the direction of the opening with box sliding connection, driving part is connected to box and slider, for driving slider and top plate lifting relative to box, to open or block opening.The utility model can effectively solve the problem of large consumption of electric energy of energy storage power station caused by the heat exchange effect of air conditioning ventilation system, to avoid the temperature rise of battery during charging and discharging process, spontaneous combustion or fire, resulting in.

Description

Technical Field

[0001] This utility model relates to the field of energy storage power station technology, specifically to a container for energy storage power stations and a cascaded energy storage power station. Background Technology

[0002] With the continuous upgrading and iteration of ternary lithium battery technology, ternary lithium batteries are widely used in energy storage power stations to meet the needs of effective energy storage and utilization. Energy storage power stations play a very important role in supplementing the power grid and adjusting the peak and valley of the power grid.

[0003] For example, Chinese utility model patent publication number CN207398935U, entitled "A Ternary Lithium Battery Containerized Mobile Energy Storage Power Station," includes a mobile energy storage power station, a monitoring and management system, a bidirectional converter, a battery management system, energy storage modules, a charging system, electrical appliances, a power generation system, an environmental monitoring system, and a mobile energy storage container. The mobile energy storage power station, the monitoring and management system, the bidirectional converter, the battery management system, and the energy storage modules are all installed inside the mobile energy storage container and are modularly designed. This device uses ternary lithium batteries with high energy density, excellent low-temperature and rate performance as the energy storage carrier, features a standardized modular design for power batteries, distributed management, and is equipped with an advanced battery management system and bidirectional converter. It possesses characteristics such as high specific energy, long lifespan, safety and reliability, and a wide operating temperature range, making it suitable for industrial application.

[0004] Energy storage batteries use an air conditioning ventilation system to exchange heat between the internal and external environments during use, in order to prevent the battery from overheating during charging and discharging, which could lead to spontaneous combustion or fire, thus avoiding the problem of high energy consumption by energy storage power stations. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a container for energy storage power stations and a cascaded energy storage power station. This solves the technical problem in the prior art that the energy storage power station consumes a lot of electricity because it relies on the heat exchange effect generated by the air conditioning and ventilation system to avoid the battery temperature rising during charging and discharging, which could cause spontaneous combustion or fire.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: In a first aspect, this utility model provides a container for an energy storage power station, comprising: The housing has an interior cavity for accommodating the battery pack, and its top has an opening that communicates with the cavity. Top plate, disposed relative to the opening; and The lifting assembly includes a slider and a drive component. The slider is connected to the top plate and is slidably connected to the housing along the direction of the opening. The drive component is connected to the housing and the slider and is used to drive the slider and the top plate to lift relative to the housing to open or block the opening.

[0007] In some embodiments, the projected area of ​​the top plate on the container body is greater than the cross-sectional area of ​​the container body. The container for energy storage power stations also includes a sealing element connected to the top plate and disposed on the side of the top plate near the container body, and the sealing element can abut against the open end of the container body.

[0008] In some embodiments, the seal is a square ring and has an elastic structure, and the cross-section of the seal is a horizontally arranged "U" shape.

[0009] In some embodiments, the sliding member includes four mesh plates, which are respectively disposed around the perimeter of the receiving cavity. One end of each mesh plate is connected to the top plate, and the other end is slidably inserted into the receiving cavity relative to the housing along with the top plate. Adjacent mesh plates are connected to each other.

[0010] In some embodiments, two guide grooves are respectively formed on the inner walls of opposite sides of the receiving cavity. The two guide grooves are parallel to each other and spaced apart along the height direction of the box body. The sliding member also includes four sliding blocks. One end of each of the four sliding blocks is slidably embedded in the guide groove along the guide groove, and the other end is connected to the two adjacent grid plates.

[0011] In some embodiments, the slider includes a plurality of elastic locking portions connected to the slider block and capable of engaging with the grid plate, so that the grid plate is detachably connected to the slider block.

[0012] In some embodiments, the lifting assembly further includes a support frame that spans the opening end of the receiving cavity and is connected to the inner wall of the receiving cavity. The driving member has a fixed end and a telescopic end. The fixed end of the driving member is connected to the support frame, and the movable end is connected to the top plate, for driving the top plate to rise and fall relative to the housing.

[0013] In some embodiments, the driving component includes a lifting box, a first lifting rod, a first rack, a driving gear, and a driving motor. The lifting box is connected to the support frame. The interior of the lifting box is hollow and has a first sliding groove. One end of the first lifting rod is connected to the top plate, and the other end is slidably inserted into the first sliding groove and connected to the inner wall of the first sliding groove. The first rack is arranged along the guide of the first lifting rod and connected to the first lifting rod. The driving gear is rotatably built into the lifting box and meshes with the first rack. The fixed end of the driving motor is connected to the lifting box, and the output shaft is connected to the driving gear.

[0014] In some embodiments, the lifting box is further provided with a second slide groove, and the driving component further includes a second lifting rod and a second rack. One end of the second lifting rod is connected to the support frame, and the other end is slidably inserted into the second slide groove and connected to the inner wall of the second slide groove. The second rack is arranged along the guide of the second lifting rod and connected to the second lifting rod. The second rack meshes with the driving gear, and the driving gear rotates around the output shaft of the driving motor, which can drive the first rack and the second rack to slide relative to the lifting box in opposite directions.

[0015] Secondly, this utility model also provides a cascaded energy storage power station, including multiple battery packs and a container for energy storage power stations as described above. The multiple battery packs are arranged sequentially at intervals along the height direction of the receiving cavity, and each can be detachably connected to the container.

[0016] Compared with existing technologies, the beneficial effects of the container for energy storage power stations and the cascaded energy storage power station provided by this utility model include: the interior of the container forms a receiving cavity for placing battery packs; the top plate has an opening relative to the top of the container; a sliding member is connected to the top plate and slidably connected to the container; and a driving member can drive the sliding member and the top plate to rise and fall relative to the container to open or close the opening. Compared with existing technologies, using a driving member to drive the top plate to slide relative to the container allows the opening connecting the top of the container to the receiving cavity to be opened or closed. When the opening of the top plate is open, the temperature inside the receiving cavity can be exchanged with the ambient temperature to achieve effective heat dissipation, reducing reliance on the heat exchange effect generated by the air conditioning and ventilation system and reducing energy consumption. This solves the technical problem in existing technologies where reliance on the heat exchange effect generated by the air conditioning and ventilation system to prevent the battery from overheating during charging and discharging, leading to spontaneous combustion or fire, results in high energy consumption in energy storage power stations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of a container for an energy storage power station provided in an embodiment of this utility model; Figure 2This is a three-dimensional view of a container for an energy storage power station provided in an embodiment of the present invention; Figure 3 This is another three-dimensional view of a container for an energy storage power station provided in an embodiment of this utility model; Figure 4 This is a cross-sectional view of the connection between the housing and the lifting assembly provided in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached figures: Box body 100; receiving cavity 110; opening 120; top plate 200; lifting assembly 300; sliding component 310; grid plate 311; sliding block 312; elastic snap-fit ​​part 313; driving component 320; lifting box 321; first lifting rod 322; first rack 323; driving gear 324; driving motor 325; second lifting rod 326; second rack 327; support frame 330; sealing component 400. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the technical problem of high energy consumption in energy storage power stations due to reliance on heat exchange from air conditioning and ventilation systems to prevent spontaneous combustion or fires caused by battery overheating during charging and discharging, this invention provides a containerized energy storage power station and a cascaded energy storage power station. The device utilizes a drive unit 320 to slide the top plate 200 relative to the container 100, allowing the opening 120 connecting the top of the container 100 to the receiving cavity 110 to be opened or closed. When the opening 120 of the top plate 200 is open, temperature exchange between the receiving cavity 110 and the external environment can be achieved, effectively dissipating heat, reducing reliance on heat exchange from air conditioning and ventilation systems, and decreasing energy consumption.

[0021] Please see Figures 1 to 4 , Figure 1 , Figure 2This is a schematic diagram of the structure of a container for an energy storage power station and a cascaded energy storage power station according to an embodiment of the present invention. The container for the energy storage power station includes: a container body 100, a top plate 200, and a lifting assembly 300. The container body 100 has a cavity 110 for accommodating a battery pack inside, and an opening 120 communicating with the cavity 110 is opened on its top. The top plate 200 is disposed opposite to the opening 120. The lifting assembly 300 includes a sliding member 310 and a driving member 320. The sliding member 310 is connected to the top plate 200 and is slidably connected to the container body 100 along the direction of the opening. The driving member 320 is connected to the container body 100 and the sliding member 310, and is used to drive the sliding member 310 and the top plate 200 to rise and fall relative to the container body 100, so as to open or block the opening 120.

[0022] In this device, the driving component 320 is used to drive the top plate 200 to slide relative to the housing 100, so that the opening 120 connecting the top of the housing 100 to the receiving cavity 110 can be opened or closed. When the opening 120 of the top plate 200 of the housing 100 is opened, the temperature inside the receiving cavity 110 can be exchanged with the ambient temperature to achieve effective heat dissipation, reduce dependence on the heat exchange effect generated by the air conditioning and ventilation system and reduce the consumption of electrical energy. It can solve the technical problem of high electrical energy consumption of energy storage power stations caused by relying on the heat exchange effect generated by the air conditioning and ventilation system to avoid the battery temperature rising during charging and discharging, which could lead to spontaneous combustion or fire.

[0023] Furthermore, the container 100 adopts a frame structure, and steel plates are welded to the four sides and bottom of the frame structure to form a closed cavity structure. The container is a common and readily available piece of equipment on the market and is a conventional setup known to those skilled in the art, so it will not be described in detail here.

[0024] In this embodiment, the projected area of ​​the top plate 200 on the container 100 is greater than the cross-sectional area of ​​the container 100. The container for energy storage power stations also includes a sealing element 400. The sealing element 400 is connected to the top plate 200 and is disposed on the side of the top plate 200 close to the container 100. The sealing element 400 can abut against the open end of the container 100.

[0025] By installing a seal 400 at the opening end of the top plate 200 and the receiving cavity 110, the energy storage power station has a waterproof effect.

[0026] Furthermore, in order to avoid or reduce rainwater entering the interior of the receiving cavity 110 through the gap between the top plate 200 and the box 100, the projected area of ​​the top plate 200 on the box 100 is set to be larger than the cross-sectional area of ​​the box 100.

[0027] In one embodiment, the seal 400 is a square ring and has an elastic structure, and the cross-section of the seal 400 is a horizontally arranged "U" shape.

[0028] The shape of the seal 400 is matched with the opening end of the receiving cavity 110. The top plate 200 is placed on the opening end of the box 100 under its own weight, and can form a compressive force on the seal 400, so that the seal 400 can seal the gap between the top plate 200 and the box 100.

[0029] Furthermore, the cross-section of the seal 400 is a horizontally arranged "U" shape, which can effectively improve the waterproof sealing effect. The seal 400 is a rubber ring or plastic ring that is common and easy to purchase on the market. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0030] In one embodiment, please refer to Figure 2 , Figure 3 The sliding member 310 includes four grid plates 311, which are respectively arranged around the perimeter of the receiving cavity 110. One end of the grid plate 311 is connected to the top plate 200, and the other end can slide and be inserted into the receiving cavity 110 relative to the box 100 with the top plate 200. Adjacent grid plates 311 are connected to each other.

[0031] The four side walls of the accommodating cavity 110 are provided with mesh plates 311. The mesh plates 311 are connected to the top plate 200 and can be stored and unfolded together with the top plate 200 under the drive of the drive unit 320. The four mesh plates 311 are interconnected to form a stable structure. The mesh plates 311 can block dust or impurities.

[0032] Furthermore, the grid plate 311 here is a common and readily available filter screen plate with a grid on the market. This is a conventional setting known to those skilled in the art, and will not be described in detail here.

[0033] In one embodiment, please refer to Figure 4 The inner walls of the cavity 110 on both sides are provided with two guide grooves. The two guide grooves are parallel to each other and spaced apart along the height direction of the box 100. The sliding member 310 also includes four sliding blocks 312. One end of the four sliding blocks 312 is slidably embedded in the guide groove along the guide groove, and the other end is connected to the two adjacent grid plates 311.

[0034] The sliding engagement between the sliding block 312 and the guide groove is used to realize the sliding connection between the grid plate 311 and the box 100.

[0035] Furthermore, the four grid plates 311 are connected by four sliding blocks 312 to form a whole, which can improve the stability of the device during movement.

[0036] In one embodiment, please refer to Figure 3 The sliding member 310 includes a plurality of elastic snap-fit ​​parts 313, which are connected to the sliding block 312 and can snap-fit ​​with the grid plate 311 so that the grid plate 311 can be detachably connected to the sliding block 312.

[0037] The elastic snap-fit ​​part 313 is used to realize the detachable connection between the grid plate 311 and the sliding block 312.

[0038] Furthermore, the sliding block 312 is provided with a slot and a through groove connected to the slot, and the mesh plate 311 is provided with a slot opposite to the through groove. The elastic locking part 313 is a spring and locking rod structure that is common and easy to purchase on the market. Under the elastic force of the spring, the locking rod can be pushed to slide into the through groove and engage with the slot. Further details are omitted here.

[0039] In this embodiment, the lifting assembly 300 also includes a support frame 330, which spans the opening end of the receiving cavity and is connected to the inner wall of the receiving cavity 110. The driving member 320 has a fixed end and a telescopic end. The fixed end of the driving member 320 is connected to the support frame 330 and the movable end is connected to the top plate 200, which is used to drive the top plate 200 to rise and fall relative to the box 100.

[0040] The support frame 330 is used to connect to and support the drive component 320.

[0041] Furthermore, the support frame 330 is in the shape of a cross and is connected to the inner wall of the receiving cavity 110, and the plane where the support frame 330 is located is lower than the plane where the opening end of the receiving cavity 110 is located.

[0042] In one embodiment, please refer to Figure 4 The driving component 320 includes a lifting box 321, a first lifting rod 322, a first rack 323, a driving gear 324, and a driving motor 325. The lifting box 321 is connected to the support frame 330. The interior of the lifting box 321 is hollow and has a first sliding groove. One end of the first lifting rod 322 is connected to the top plate 200, and the other end is slidably inserted into the first sliding groove and connected to the inner wall of the first sliding groove. The first rack 323 is arranged along the guide of the first lifting rod 322 and connected to the first lifting rod 322. The driving gear 324 is rotatably built into the lifting box 321 and meshes with the first rack 323. The fixed end of the driving motor 325 is connected to the lifting box 321, and the output shaft is connected to the driving gear 324.

[0043] The linear drive structure, consisting of a lifting box 321, a first lifting rod 322, a first rack 323, a drive gear 324, and a drive motor 325, operates on the principle that the output shaft of the drive motor 325 drives the drive gear 324 to rotate relative to the lifting box 321, thereby meshing the drive gear 324 with the first rack 323 to drive the first lifting rod 322 to rise and fall relative to the lifting box 321 and the support frame 330.

[0044] Furthermore, the linear drive structure consisting of the lifting box 321, the first lifting rod 322, the first rack 323, the drive gear 324, and the drive motor 325 can also be replaced by a push rod motor, a hydraulic cylinder, or a pneumatic cylinder, which will not be elaborated further here.

[0045] In one embodiment, please refer to Figure 4 The lifting box 321 is also provided with a second sliding groove. The driving component 320 also includes a second lifting rod 326 and a second rack 327. One end of the second lifting rod 326 is connected to the support frame 330, and the other end is slidably inserted into the second sliding groove and connected to the inner wall of the second sliding groove. The second rack 327 is arranged along the guide of the second lifting rod 326 and is connected to the second lifting rod 326. The second rack meshes with the driving gear 324. The driving gear 324 rotates around the output shaft of the driving motor 325, which can drive the first rack 323 and the second rack 327 to slide relative to the lifting box 321 in opposite directions.

[0046] The second lifting rod 326 and the second rack 327 are combined with the drive motor 325 to form a linear drive structure, which drives the second lifting rod 326 to extend or retract relative to the lifting box 321.

[0047] Furthermore, the second lifting rod 326 moves in the opposite direction to the first lifting rod 322, and the second lifting rod 326 and the first lifting rod 322 are respectively engaged with the drive gear 324 through the second rack 327 and the first rack 323, so that when the drive gear 324 rotates relative to each other, the second lifting rod 326 and the first lifting rod 322 extend or retract in opposite directions, thereby improving the utilization rate of space.

[0048] This embodiment also provides a cascaded energy storage power station, characterized in that it includes multiple battery packs and the above-mentioned energy storage power station container. The multiple battery packs are arranged sequentially at intervals along the height direction of the receiving cavity 110, and each can be detachably connected to the container body 100.

[0049] Multiple solar panels are sequentially installed within the housing 100 along the height direction as charging and discharging equipment for the energy storage power station.

[0050] In one embodiment, the cascaded energy storage system in this device should also include: PCS, EMS station control unit, UPS, fire extinguishing device, main relay, shunt, fast fuse, EMS system station control touch screen, BMS master controller, BMS slave controller, and air conditioner.

[0051] Among them, the PCS (Power Conversion System) is a conversion device between the power grid and the battery, which can charge and discharge the battery; the Energy Management System, also known as EMS, includes an EMS station control unit and an EMS system station control touch screen in this embodiment; the fire extinguishing device adopts a combination of a cabinet-type energy storage non-pressurized fire extinguishing device (including a controller) that integrates control and fire extinguishing and a non-pressurized perfluorohexanone fire extinguishing device to achieve two levels of active and passive protection: package and cabinet; UPS, or uninterruptible power supply, is an uninterruptible power supply containing an energy storage device; the Battery Management System (BMS) is the link between the battery and the user, mainly for secondary batteries, and in this embodiment, the BMS includes a BMS master controller and a BMS slave controller.

[0052] Furthermore, the main relay, shunt, fast-acting fuse, and air conditioner here are all conventional installations known to those skilled in the art, and will not be described in detail here.

[0053] To better understand this utility model, the following is combined with... Figures 1 to 4 The technical solution of this utility model is described in detail below: The housing 100 has an internal cavity 110 for housing the battery pack. A top plate 200 is positioned relative to an opening 120 on the top of the housing 100. A sliding member 310 is connected to the top plate 200 and slidably connected to the housing 100. A driving member 320 can move the sliding member 310 and the top plate 200 relative to the housing 100, thus opening or closing the opening 120. Compared to existing technologies, using the driving member 320 to move the top plate 200 relative to the housing 100 allows the opening 120, which connects the top of the housing 100 to the cavity 110, to be opened or closed. When the opening 120 of the top plate 200 is open, the temperature inside the cavity 110 can exchange with the ambient temperature for effective heat dissipation, reducing reliance on the heat exchange effect of the air conditioning ventilation system and reducing energy consumption.

[0054] In the specific working process of this utility model, when the energy storage power station is used, if the ambient temperature is low and there is no rain or snow, the user can selectively open the top plate 200, so that the housing cavity 110 of the box 100 is connected to the external environment through the top opening 120 of the box 100, thereby achieving heat dissipation and reducing the use of the air conditioning ventilation system and the consumption of electrical energy.

[0055] Furthermore, when it is necessary to open the opening 120, the user controls the drive motor 325 to work. The output shaft of the drive motor 325 rotates in the first direction, which drives the drive gear 324 to rotate relative to the lifting box 321. After rotation, the drive gear 324 continuously meshes with the first gear and the second rack, which can realize the rise of the top plate 200. The risen top plate 200 can drive the mesh plate 311 to unfold, forming a barrier against impurities or dust. When it is necessary to block the opening 120, the user controls the drive motor 325 to work. The output shaft of the drive motor 325 rotates in the second direction, which is opposite to the first direction. After rotation, the drive gear 324 continuously meshes with the first gear and the second rack, which can realize the fall of the top plate 200. The fall of the top plate 200 can drive the mesh plate 311 to retract.

[0056] This device, through the aforementioned structure, can solve the technical problem in the prior art where the reliance on the heat exchange effect generated by the air conditioning and ventilation system to prevent the battery from overheating during charging and discharging, thus avoiding spontaneous combustion or fire, leads to high energy consumption in energy storage power stations.

[0057] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A container for an energy storage power station, characterized in that, include: The housing has an interior cavity for accommodating the battery pack, and its top has an opening that communicates with the cavity. Top plate, positioned relative to the opening; as well as The lifting assembly includes a slider and a drive component. The slider is connected to the top plate and is slidably connected to the housing along the direction of the opening. The drive component is connected to the housing and the slider and is used to drive the slider and the top plate to lift relative to the housing to open or block the opening.

2. The container for energy storage power stations according to claim 1, characterized in that, The projected area of ​​the top plate on the container body is larger than the cross-sectional area of ​​the container body. The container for the energy storage power station also includes a sealing element. The sealing element is connected to the top plate and is disposed on the side of the top plate near the container body. The sealing element can abut against the open end of the container body.

3. The container for an energy storage power station according to claim 2, characterized in that, The seal is a square ring with an elastic structure, and its cross-section is a horizontally arranged "U" shape.

4. The container for an energy storage power station according to claim 1, characterized in that, The sliding member includes four grid plates, which are respectively arranged around the perimeter of the receiving cavity. One end of each grid plate is connected to the top plate, and the other end can slide into the receiving cavity relative to the box body along with the top plate. Adjacent grid plates are connected to each other.

5. The container for an energy storage power station according to claim 4, characterized in that, The inner walls on opposite sides of the receiving cavity are respectively provided with two guide grooves. The two guide grooves are parallel to each other and spaced apart along the height direction of the box body. The sliding member also includes four sliding blocks. One end of each of the four sliding blocks is slidably embedded in the guide groove along the guide groove, and the other end is connected to the two adjacent grid plates.

6. The container for an energy storage power station according to claim 5, characterized in that, The sliding member includes multiple elastic locking parts, which are connected to the sliding block and can engage with the grid plate, so that the grid plate can be detachably connected to the sliding block.

7. The container for an energy storage power station according to claim 1, characterized in that, The lifting assembly also includes a support frame that spans the opening of the receiving cavity and is connected to the inner wall of the receiving cavity. The driving member has a fixed end and a telescopic end. The fixed end of the driving member is connected to the support frame, and the movable end is connected to the top plate, for driving the top plate to rise and fall relative to the box body.

8. The container for an energy storage power station according to claim 7, characterized in that, The driving component includes a lifting box, a first lifting rod, a first rack, a driving gear, and a driving motor. The lifting box is connected to the support frame. The interior of the lifting box is hollow and has a first sliding groove. One end of the first lifting rod is connected to the top plate, and the other end is slidably inserted into the first sliding groove and connected to the inner wall of the first sliding groove. The first rack is arranged along the guide of the first lifting rod and is connected to the first lifting rod. The driving gear is rotatably built into the lifting box and meshes with the first rack. The fixed end of the driving motor is connected to the lifting box, and the output shaft is connected to the driving gear.

9. The container for an energy storage power station according to claim 8, characterized in that, The lifting box is also provided with a second sliding groove. The driving component also includes a second lifting rod and a second rack. One end of the second lifting rod is connected to the support frame, and the other end is slidably inserted into the second sliding groove and connected to the inner wall of the second sliding groove. The second rack is arranged along the guide of the second lifting rod and connected to the second lifting rod. The second rack meshes with the driving gear. The driving gear rotates around the output shaft of the driving motor, which can drive the first rack and the second rack to slide relative to the lifting box in opposite directions.

10. A cascaded energy storage power station, characterized in that, It includes multiple battery packs and a container for an energy storage power station as described in any one of claims 1-9, wherein the multiple battery packs are arranged sequentially at intervals along the height direction of the receiving cavity, and each can be detachably connected to the container body.

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