Battery protection device for energy storage power station

Abstract

The utility model discloses a battery protection device for an energy storage power station, which comprises a battery cabinet, a plurality of isolation platforms distributed at equal intervals along the height direction of the battery cabinet are arranged on the battery cabinet, a linear module is arranged on the battery cabinet, and an isolation frame is arranged at the moving end of the linear module; the interior of the isolation table is hollow, and sealing plates capable of sliding out in the length direction of the isolation table are arranged on the two sides of the interior of the isolation table; the electromagnets are arranged at the upper end and the lower end of the isolation frame; the linkage device is arranged in the isolation table and used for driving the sealing plate to slide out of the isolation table and abut against the isolation frame when the isolation frame moves and gets close to the corresponding isolation table and the electromagnet is powered on. According to the utility model, the abnormal battery can be effectively isolated, so that when the temperature of the abnormal battery is abnormal or the abnormal battery is processed, other batteries are not influenced, the fault battery is isolated, and the other batteries are not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery protection, in particular to a battery protection device for an energy storage power station. Background Art

[0002] Energy storage power stations are equipment systems that store, convert and release cyclic electrical energy through electrochemical cells or electromagnetic energy storage media. In energy storage power stations, batteries are generally placed in racks and other places. The batteries in energy storage power stations need to be protected, mainly because the batteries may experience abnormal conditions such as overcharging, overdischarging, overheating, short circuits, etc. during the charging and discharging process. These abnormal conditions may cause battery performance degradation or even safety accidents. Energy storage batteries are generally installed in battery cabinets, and the cabinets usually have heat dissipation holes around them to facilitate normal heat dissipation of the batteries. Therefore, the batteries in the cabinets are not well isolated from each other. When a battery on the battery cabinet fails and causes abnormal temperature, it is difficult to isolate the abnormal part from other batteries in time. When there is a tendency to ignite, it will have an adverse effect on other batteries, thereby reducing the safety of other batteries. Therefore, designing a protection device that can isolate faulty batteries and keep other batteries unaffected has become a problem that people in this field need to solve. Utility Model Content

[0003] The purpose of the utility model is to provide a battery protection device for an energy storage power station to address the above-mentioned deficiencies, so as to isolate the faulty battery and keep other batteries unaffected.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a battery protection device for an energy storage power station, comprising:

[0005] A battery cabinet, each energy storage battery is inserted and installed in the battery cabinet, the battery cabinet is provided with a plurality of isolation platforms equidistantly distributed along the height direction of the battery cabinet, the battery cabinet is provided with a linear module, the moving end of the linear module is provided with an isolation frame, the height of the isolation frame is not less than the height between two adjacent isolation platforms, and the linear module is used to drive the isolation frame to reciprocate along the height direction of the battery cabinet;

[0006] The interior of the isolation platform is hollow, and sealing plates that can slide out along the length direction of the isolation platform are arranged on both sides of the interior of the isolation platform;

[0007] Electromagnets are arranged at the upper and lower ends of the isolation frame;

[0008] The linkage device is arranged in the isolation platform and is used to drive the sealing plate to slide out of the isolation platform and abut against the isolation frame when the isolation frame moves and approaches the corresponding isolation platform and the electromagnet is energized, so that the isolation frame covers the battery on the corresponding isolation platform.

[0009] Furthermore, through holes are provided at the four corners of the isolation platform, and the battery placed on the isolation platform has corresponding circuits, which pass through the through holes for wiring.

[0010] Furthermore, the linkage device includes a rotatable disc arranged at the inner center of the isolation platform and two connecting rods arranged at the eccentric position of the disc, the other ends of the two connecting rods are respectively hinged to the opposite sides of the two sealing plates, a gear is installed at the center of the disc through a connecting shaft, a rack is meshed on the gear, a guide sleeve is provided on the isolation platform, one end of the rack is inserted into the guide sleeve, a tension spring connected to one end of the rack is provided on the inner wall of the guide sleeve, and a magnetic suction block corresponding to the electromagnet is provided at the other end of the rack, and the magnetic attraction force between the electromagnet and the magnetic suction block is greater than the tension of the tension spring.

[0011] Furthermore, a processing interface is provided on the isolation frame, and the processing interface is used for externally connecting fire-fighting equipment so that the fire-fighting equipment can directly perform fire-fighting treatment on the batteries located in the isolation frame. A discharge hole is provided on the other side of the isolation frame away from the processing interface, and a vertical guide groove is provided on the battery cabinet, and the processing interface is located in the guide groove.

[0012] Furthermore, a fire extinguishing plate is provided on the inner wall of the isolation frame, and the fire extinguishing plate is detachably connected to the inner wall of the isolation frame.

[0013] The beneficial effects of the utility model are embodied in:

[0014] The utility model drives the isolation frame to rise and fall and surround the battery on the corresponding isolation platform through a linear module. At this time, the controller controls the electromagnets on both sides to be energized, and the operation of the electromagnets drives the linkage devices in the two adjacent isolation platforms to operate, so that the sealing plate slides out from the above-mentioned isolation platform. After the sealing plate slides out, it is used to cooperate with the isolation platform and the isolation frame to form a relatively closed space, so that abnormal batteries are effectively isolated from normal batteries, so as to achieve isolation processing of the faulty battery and keep other batteries unaffected. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional view of the utility model;

[0016] Figure 2 This is a structural cross-sectional view of the isolation platform in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the isolation frame in the utility model;

[0018] Figure 4 It is a partial view of the gear and rack in the utility model;

[0019] Figure 5 It is a side view of the utility model;

[0020] Figure 6 This is the exterior view of the utility model (excluding the battery cabinet).

[0021] In the figure:

[0022] 1. Battery cabinet; 2. Isolation table; 3. Linear module; 4. Isolation frame; 5. Perforation; 6. Disc; 7. Gear; 8. Rack; 9. Guide sleeve; 10. Magnetic block; 11. Adjustment port; 12. Connecting rod; 13. Sealing plate; 14. Electromagnet; 15. Processing interface; 16. Discharge hole; 17. Guide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model discloses a battery protection device for an energy storage power station, including a battery cabinet 1, wherein each energy storage battery is inserted and installed in the battery cabinet 1, and a plurality of isolation platforms 2 are arranged on the battery cabinet 1 and are equidistantly distributed along the height direction of the battery cabinet 1, wherein the plurality of isolation platforms 2 are used to separate each energy storage battery, and a linear module 3 is vertically installed on the battery cabinet 1, and an isolation frame 4 is installed at the moving end of the linear module 3, and the height of the isolation frame 4 is not lower than the height between two adjacent isolation platforms 2, and the linear module 3 is used to drive the isolation frame 4 to reciprocate along the height direction of the battery cabinet 1, and a plurality of groups of heat conduction holes are opened on the battery cabinet 1, and the heat conduction holes are used to guide the heat of the energy storage battery to be transferred to the outside of the battery cabinet 1.

[0025] In one embodiment, the interior of the isolation platform 2 is hollow, and sealing plates 13 that can slide out along the length direction of the isolation platform 2 are provided on both sides of the interior of the isolation platform 2. Electromagnets 14 are installed at the upper and lower ends of the isolation frame 4. A linkage device is provided in the isolation platform 2. The linkage device is used to drive the sealing plate 13 to slide out of the isolation platform 2 and against the isolation frame 4 when the isolation frame 4 moves and approaches the corresponding isolation platform 2 and the electromagnet 14 is energized, so that the isolation frame 4 covers the battery on the corresponding isolation platform 2.

[0026] Among them, the electromagnet 14 and the linear module 3 will be electrically connected to an external power supply and a controller, and the controller is connected to the battery management system signal. The battery management system is used to monitor the battery's charging and discharging status, health status, temperature, voltage, current, etc. in real time. The battery management system is a well-known technology in the field, so the article does not go into too much detail about its specific structure.

[0027] In a specific implementation, the isolation frame 4 in the initial state is located at the top of the battery cabinet 1. At this time, the isolation frame 4 does not cover the battery. When the battery management system detects that a battery on the battery cabinet 1 is abnormal, the controller drives the linear module 3 to work, so that the isolation frame 4 rises and falls and surrounds the battery on the corresponding isolation platform 2. At this time, the controller controls the electromagnet 14 to be energized, and the electromagnet 14 drives the linkage device to work, so that the sealing plates 13 in the two adjacent isolation platforms 2 closest to the upper and lower ends of the isolation frame 4 slide out from the inside of the isolation platform 2. After the sealing plates 13 slide out, they contact the isolation frame 4, so that the isolation platform 2, the isolation frame 4, and the sealing plates 13 form a closed space, so that the abnormal battery is effectively isolated from the normal battery, so as to isolate the faulty battery and keep other batteries unaffected.

[0028] It can be understood that the number of sealing plates 13 inside each isolation platform 2 can be four. The above-mentioned sealing plates 13 are driven by electromagnets 14 and linkage devices to extend simultaneously from the length direction and width direction of the isolation platform 2, and cooperate with the isolation platform 2 and the isolation frame 4 to isolate abnormal batteries.

[0029] In one embodiment, through holes 5 are provided at the four corners of the isolation platform 2 , and the battery placed on the isolation platform 2 has corresponding circuits, which pass through the through holes 5 for wiring.

[0030] This design allows the battery circuit to pass directly through the through hole 5 for wiring without being scattered, which can not only increase the convenience of subsequent inspection and maintenance of the energy storage battery, but also prevent the circuit from affecting the normal lifting and lowering of the isolation frame 4.

[0031] In one embodiment, the linkage device includes a disc 6 rotatably installed at the inner center of the isolation platform 2 and two connecting rods 12 installed at the eccentric position of the disc 6, the other ends of the two connecting rods 12 are hinged to the opposite sides of the two sealing plates 13 respectively, a gear 7 is installed at the center of the disc 6 through a connecting shaft, a rack 8 is meshed on the gear 7, a guide sleeve 9 is installed on the isolation platform 2, one end of the rack 8 is inserted into the guide sleeve 9, a tension spring connected to one end of the rack 8 is installed on the inner wall of the guide sleeve 9, and a magnetic block 10 corresponding to the electromagnet 14 is installed on the other end of the rack 8, wherein the magnetic attraction force of the electromagnet 14 and the magnetic block 10 is greater than the tension of the tension spring.

[0032] In a specific implementation, when the isolation frame 4 moves and approaches the corresponding isolation platform 2 and the electromagnet 14 is energized, the electromagnet 14 is aligned with the magnetic block 10 in the corresponding isolation platform 2, and the electromagnet 14 will absorb and bring the magnetic block 10 close to it, thereby making the rack 8 close to the electromagnet 14. When the rack 8 moves, it will drive the gear 7 and the disc 6 to rotate, thereby making the two connecting rods 12 at the eccentric position of the disc 6 swing accordingly and drive the two sealing plates 13 to slide and adjust along the length direction of the isolation platform 2. In actual circumstances, an adjustment port 11 may be opened in the side wall of the isolation platform 2, and the adjustment port 11 is located between the magnetic block 10 and the electromagnet 14 in the aligned state. The adjustment port 11 is used to reduce the isolation effect of the isolation platform 2 on the magnetic block 10 and the electromagnet 14, so as to further improve the magnetic attraction efficiency of the magnetic block 10 and the electromagnet 14.

[0033] It can be understood that when there are four sealing plates 13 in each isolation table 2, in the corresponding linkage device, another disc 6 is installed on the top of the disc 6, and two connecting rods 12 are eccentrically installed on the second disc 6. Therefore, the above-mentioned two discs 6 have a total of four connecting rods 12, and the other ends of the four connecting rods 12 are respectively connected to the four sealing plates 13. Therefore, when the two discs 6 rotate synchronously, the four sealing plates 13 will be driven to slide synchronously from the isolation table 2 at the same time.

[0034] In one embodiment, interconnected processing interfaces 15 are installed on the isolation frame 4, a discharge hole 16 is opened on the other side of the isolation frame 4 away from the processing interface 15, a vertical guide groove 17 is opened on the side wall of the battery cabinet 1, and the processing interface 15 is located in the guide groove 17.

[0035] By such a design, the processing interface 15 can be directly connected to the fire-fighting equipment, so that the fire-fighting equipment can directly perform fire-fighting processing on the batteries located in the isolation frame 4. In this state, the processing can be performed on the abnormal batteries without affecting other batteries, and the discharge hole 16 is used to allow the fire-fighting equipment to spray out the relevant fire-extinguishing medium, which can be discharged outward from the discharge hole 16. Since the discharge hole 16 is located on the outer wall on the other side of the isolation frame 4, and since the isolation frame 4 is on the outer side of the isolation platform 2 and the batteries, it is difficult for the fire-extinguishing medium to directly contact the remaining batteries after being discharged.

[0036] In one embodiment, a fire extinguishing plate is provided on the inner wall of the isolation frame 4 , and the fire extinguishing plate is detachably connected to the inner wall of the isolation frame 4 .

[0037] With such a design, when the fire extinguishing plate contacts with the fire source, a fire extinguishing medium will be released, and the fire extinguishing medium is a fire extinguishing agent, and the above-mentioned fire extinguishing agent can be carbon dioxide, dry powder and chemical flame retardant, etc. These substances can react chemically with the combustion products or combustibles to suppress further combustion of the flame, and the fire extinguishing plate can be detachably installed on the isolation frame 4, therefore, the fire extinguishing plate can be replaced and handled at any time.

[0038] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0040] In addition, "plurality" means two or more.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery protection device for an energy storage power station, characterized in that: include, A battery cabinet (1), each energy storage battery is inserted and installed in the battery cabinet (1), the battery cabinet (1) is provided with a plurality of isolation platforms (2) equidistantly distributed along the height direction of the battery cabinet (1), the battery cabinet (1) is provided with a linear module (3), the moving end of the linear module (3) is provided with an isolation frame (4), the height of the isolation frame (4) is not less than the height between two adjacent isolation platforms (2), and the linear module (3) is used to drive the isolation frame (4) to move back and forth along the height direction of the battery cabinet (1); The interior of the isolation platform (2) is hollow, and sealing plates (13) that can slide out along the length direction of the isolation platform (2) are arranged on both sides of the interior of the isolation platform (2); Electromagnets (14) are arranged at the upper and lower ends of the isolation frame (4); A linkage device is arranged in the isolation platform (2) and is used to drive the sealing plate (13) to slide out of the isolation platform (2) and abut against the isolation frame (4) when the isolation frame (4) moves and approaches the corresponding isolation platform (2) and the electromagnet (14) is energized, so that the isolation frame (4) covers the battery on the corresponding isolation platform (2).

2. According to claim 1, a battery protection device for an energy storage power station is characterized in that: The isolation platform (2) is provided with through holes (5) at the four corners, and the battery placed on the isolation platform (2) has a corresponding circuit, which passes through the through holes (5) for wiring.

3. The battery protection device for an energy storage power station according to claim 1, characterized in that: The linkage device comprises a rotatable disk (6) arranged at the inner center of the isolation platform (2) and two connecting rods (12) arranged at the eccentric position of the disk (6), the other ends of the two connecting rods (12) are respectively hinged to the opposite sides of two sealing plates (13), a gear (7) is installed at the center of the disk (6) through a connecting shaft, a rack (8) is meshed on the gear (7), a guide sleeve (9) is arranged on the isolation platform (2), one end of the rack (8) is inserted into the guide sleeve (9), a tension spring connected to one end of the rack (8) is arranged on the inner wall of the guide sleeve (9), and a magnetic attraction block (10) corresponding to the electromagnet (14) is arranged at the other end of the rack (8), and the magnetic attraction force between the electromagnet (14) and the magnetic attraction block (10) is greater than the tension force of the tension spring.

4. The battery protection device for an energy storage power station according to claim 1, characterized in that: The isolation frame (4) is provided with a processing interface (15), the processing interface (15) is used to connect an external fire-fighting device so that the fire-fighting device can directly perform fire-fighting treatment on the batteries located in the isolation frame (4), the isolation frame (4) is provided with a discharge hole (16) on the other side away from the processing interface (15), the battery cabinet (1) is provided with a vertical guide groove (17), and the processing interface (15) is located in the guide groove (17).

5. The battery protection device for an energy storage power station according to claim 1, characterized in that: A fire extinguishing plate is provided on the inner wall of the isolation frame (4), and the fire extinguishing plate is detachably connected to the inner wall of the isolation frame (4).

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