Energy storage battery cabinet capable of rapidly cutting off battery PACK fault

Abstract

The utility model discloses an energy storage battery cabinet capable of rapidly cutting off a battery PACK fault, which belongs to the technical field of battery explosion prevention and comprises a battery cabinet, an explosion-proof channel communicated with the battery cabinet is arranged on the back of the battery cabinet, an explosion-proof box is arranged below the battery cabinet, and a one-way door which is opened downwards is arranged between the explosion-proof channel and the explosion-proof box. A plurality of supports are arranged in the battery cabinet in the up-down direction, batteries PACK are arranged on the supports in the front-back direction in a sliding mode, driving mechanisms, controllers and backup power sources are arranged in the supports, the driving mechanisms are used for driving the batteries PACK to move, the backup power sources are used for supplying power to the driving mechanisms and the controllers, and the signal output ends of the controllers are electrically connected with the driving mechanisms. And the signal input end of the controller is electrically connected with a power management system of the battery PACK. According to the utility model, other batteries PACK in the battery box can be prevented from being damaged, accurate and effective fire extinguishing can be realized, and further expansion of disasters is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of energy storage battery cabinet that can quickly cut off battery PACK failure, belong to battery explosion-proof technical field. BACKGROUND

[0002] The energy storage mode commonly used in power industry includes pumped storage, compressed air energy storage and battery energy storage. Compared with the above two energy storage modes, battery energy storage can effectively provide peak regulation, frequency regulation and other services, making the power grid more intelligent, safe, economic and controllable. It can also improve the reliability and economy of electricity use for users on the user side (using different peak and valley electricity prices to reduce electricity costs). Since the development of battery energy storage, there have been many incidents of fire and explosion caused by battery failure in battery energy storage equipment such as energy storage power stations and electric vehicles. Once the battery cabinet experiences thermal runaway, it will cause severe burning of the battery, and the failure of a single battery PACK will spread to the entire battery cabinet, causing a fire in all battery PACKs in the entire battery cabinet, which will expand the accident and cause other serious accidents. In the prior art, the battery cabinet fire extinguishing system generally uses a spray pipe to extinguish the battery PACK. When a battery box in a group of battery cabinets fails, the fire extinguishing system of the group of battery cabinets will be activated, which may cause the following problems: first, the sprayed powder or liquid may damage the remaining intact battery boxes. Basically, the entire battery cabinet is scrapped when the fire extinguishing system is triggered once, and it may even affect the surrounding battery cabinets, causing significant losses. Second, when the bottom battery box catches fire, the spray pipe cannot effectively extinguish the fire because it sprays from top to bottom. The bottom fire may ignite the upper battery boxes, causing the disaster to spread. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an energy storage battery cabinet that can quickly cut off battery PACK failure, avoid damaging the remaining battery PACKs in the battery box, and achieve precise and effective fire extinguishing to prevent the disaster from further expanding.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of energy storage battery cabinet that can quickly cut off battery PACK failure, including battery cabinet, the back of the battery cabinet is provided with the explosion-proof passage communicated with it, the lower surface of the battery cabinet is provided with explosion-proof box, one-way door is arranged between the explosion-proof passage and the explosion-proof box, the battery cabinet is provided with several supports in up-down direction, battery PACK is slidably arranged on the support in front-back direction, drive mechanism, controller and backup power supply are arranged in the support, the drive mechanism is used to drive the battery PACK to move, the backup power supply is used to power the drive mechanism and controller, the signal output end of the controller is electrically connected with the drive mechanism, and the signal input end of the controller is electrically connected with the power management system of the battery PACK.

[0006] The drive mechanism includes a servo motor, the power switch of the servo motor is connected with the signal output end of the controller, a driving sprocket is arranged on the output shaft of the servo motor, the driving sprocket drives a driven sprocket to rotate through a chain, the driven sprocket is installed at the front end of a lead screw, the lead screw is rotatably arranged on the support, and the lead screw is matched with a lead screw nut arranged on the bottom surface of the battery PACK.

[0007] A slot is formed in the support for accommodating the lead screw.

[0008] A hole is formed in the front side of the support for the lead screw to pass through, and a handle is installed at the front end of the lead screw.

[0009] A pulley is installed on the lower part of the side surface of the battery PACK, and the pulley is in contact with the upper surface of the support.

[0010] An automatic fire extinguishing system and a pressure relief device are arranged in the explosion-proof box.

[0011] A dry ice extinguisher is arranged on the top of the explosion-proof passage, the one-way door is connected with the switch of the dry ice extinguisher through a connecting line, and the dry ice extinguisher is pulled to work when the one-way door is opened downward.

[0012] An explosion-proof door is arranged at the rear of the explosion-proof box, and an observation window is arranged on the explosion-proof door.

[0013] The utility model discloses a beneficial effect: the utility model provides a kind of energy storage battery cabinet that can quickly cut off battery PACK failure, battery cabinet back is provided with the explosion-proof passage that it communicates, battery cabinet below is provided with explosion-proof box, one-way door that opens door downward is provided between explosion-proof passage and explosion-proof box, drive mechanism is used to drive battery PACK movement, the signal output end of controller is electrically connected with drive mechanism, the signal input end of controller is electrically connected with the power management system that battery PACK is self-owned, when power management system detects that battery PACK appears failure, signal will be sent to controller, controller controls drive mechanism and quickly moves battery PACK that appears failure into explosion-proof passage, makes battery PACK quickly pop out, avoid failure battery PACK to spread to other normal operation battery PACK, then battery PACK is entered into explosion-proof box after one-way door under the action of gravity itself and carries out fire extinguishing treatment, entire battery cabinet does not need to be fire-fighting and extinguishing, and due to the effect of one-way door, it can avoid damaging the rest battery PACK in battery box, in addition, since it is accurate treatment to battery PACK that appears failure, accurate and effective fire extinguishing can be realized, overcome the defects that bottom battery PACK is difficult to extinguish in prior art, finally can avoid disaster to further expand. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the side view structural schematic drawing of the utility model kind of energy storage battery cabinet that can quickly cut off battery PACK failure;

[0015] Figure 2 It is the front view structural schematic drawing of the utility model kind of energy storage battery cabinet that can quickly cut off battery PACK failure;

[0016] Figure 3 It is the front view structural schematic drawing of battery PACK and support in the utility model;

[0017] Figure 4 It is the back view structural schematic drawing of battery PACK and support in the utility model;

[0018] Figure 5 It is the three-dimensional structural schematic drawing of battery PACK and support in the utility model (before sliding);

[0019] Figure 6 It is the position structural schematic drawing of lead screw in support in the utility model;

[0020] Figure 7 It is the three-dimensional structural schematic drawing of battery PACK and support in the utility model (after sliding);

[0021] Figure 8 It is the structural schematic drawing of support inside in the utility model;

[0022] The reference signs in the drawings are as follows: 1-battery cabinet; 2-explosion-proof passage; 3-one-way door; 4-explosion-proof box; 5-explosion-proof door; 6-battery PACK; 7-support; 8-screw rod; 9-screw rod nut; 10-back-up power supply; 11-controller; 12-servo motor; 13-driven sprocket; 14-chain; 15-driving sprocket; 61-pulley; 71-opening; 72-groove. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings, and the following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0024] Example 1

[0025] As shown in Figure 1 and Figure 2 The utility model discloses a kind of energy storage battery cabinets that can quickly cut off battery PACK failure, including battery cabinet 1, battery cabinet 1 back is provided with with its intercommunication explosion-proof passage 2, battery cabinet 1 below is provided with explosion-proof box 4, explosion-proof passage 2 is provided with with downward opening one-way door 3 between explosion-proof box 4, only allow to open downward, with certain sealing capacity, one-way door 3 can avoid the influence of fire-fighting in explosion-proof box 4 to battery PACK in battery cabinet 1.

[0026] As shown in Figure 8 Support 7 is provided with driving mechanism, controller 11 and back-up power supply 10 in, driving mechanism is used to drive battery PACK 6 movement, back-up power supply 10 is used to power supply driving mechanism and controller 11, the signal output end of controller 11 is electrically connected with driving mechanism, the signal input end of controller 11 is electrically connected with the power management system of battery PACK 6 self-owned, the power management system of battery PACK 6 self-owned in the utility model has the function of distinguishing that PACK internal battery appears failure and is uncontrollable, detects by each sensor, and the function is prior art.

[0027] The working principle of the utility model is as follows: when BMS (power management system) installed in battery PACK internal distinguishes that PACK internal battery appears failure and is uncontrollable (detects flammable gas, battery temperature rapid rise or appears open fire), signal will be sent to controller, controller controls driving mechanism and quickly moves battery PACK that appears failure to explosion-proof passage, then battery PACK enters explosion-proof box after passing one-way door under the action of its gravity and carries out fire extinguishing treatment.

[0028] This invention eliminates the need for fire suppression of the entire battery cabinet and, due to the one-way door, avoids damage to other battery packs within the battery box. Furthermore, because it precisely addresses faulty battery packs, it enables accurate and effective fire suppression, overcoming the shortcomings of existing technologies where bottom battery packs are difficult to extinguish, and ultimately preventing the disaster from escalating further.

[0029] Example 2

[0030] like Figure 1 and Figure 2 As shown, this utility model discloses an energy storage battery cabinet capable of quickly cutting off battery PACK faults. It includes a battery cabinet 1, with an explosion-proof passage 2 connected to the back of the cabinet 1. An explosion-proof box 4 is located below the battery cabinet 1. A one-way door 3, opening downwards, is installed between the explosion-proof passage 2 and the explosion-proof box 4. This door allows only downward opening and has a certain sealing capability, preventing the fire extinguisher inside the explosion-proof box 4 from affecting the battery PACK inside the battery cabinet 1. A dry ice fire extinguisher is installed at the top of the explosion-proof passage 2. The one-way door 3 is connected to the dry ice fire extinguisher switch via a connecting line. When the one-way door 3 opens downwards, the dry ice fire extinguisher is activated, spraying the entire battery cabinet and the explosion-proof box to achieve fire prevention and cooling. Several supports 7 are installed vertically inside the battery cabinet 1. Battery PACKs 6 are slidably mounted on the supports 7 in a front-to-back direction. Figure 3 and Figure 4 As shown, a pulley 61 is installed on the lower side of the battery pack 6, which contacts the support 7 to facilitate the movement of the battery pack 6. When a fault is detected in the battery pack 6, it can be slid to its final position, allowing it to enter the explosion-proof channel 2 and then fall into the explosion-proof box 4. An explosion-proof door 5 is located at the rear of the explosion-proof box 4, and an observation window 5 is provided on the door 5 to observe the faulty battery pack inside. The explosion-proof box 5 is equipped with a heptafluoropropane automatic fire extinguishing system and a pressure relief device, which will activate the fire extinguishing function in a timely manner according to the severity of the fault, promptly reducing the battery temperature and extinguishing any open flames.

[0031] like Figure 8 As shown, the support 7 houses a drive mechanism, a controller 11, and a backup power supply 10. The drive mechanism powers the battery PACK 6, and the backup power supply 10 supplies power to the drive mechanism and controller 11. The signal output of the controller 11 is electrically connected to the drive mechanism, and the signal input of the controller 11 is electrically connected to the power management system integrated into the battery PACK 6. In this application, the power management system integrated into the battery PACK 6 has the function of detecting a fault in the battery inside the PACK that is uncontrollable, through various sensors. This function is existing technology.

[0032] like Figure 8As shown, the driving mechanism includes a servo motor 12, the power switch of the servo motor 12 is connected with the signal output end of the controller 11, a driving sprocket 15 is arranged on the output shaft of the servo motor 12, the driving sprocket 15 drives a driven sprocket 13 to rotate through a chain 14, the driven sprocket 13 is installed at the front end of a lead screw 8, the lead screw 8 is rotatably arranged on a support 7, the lead screw 8 cooperates with a lead screw nut 9 arranged on the bottom surface of a battery PACK 6, and the specific structure is as shown in the figure. Figure 4 As shown in the figure, Figure 6 As shown, the support 7 is provided with a slot for accommodating the lead screw 8. Figure 3 And Figure 6 As shown, the front side of the support 7 is provided with an opening hole 71 for the lead screw 8 to pass through, a handle is installed at the front end of the lead screw 8, the lead screw can be rotated through the handle to realize the forward and backward movement of the battery PACK 6, manual operation can be realized in special circumstances, and the safety of the utility model is further improved.

[0033] When the lead screw drives the battery PACK to move forward and backward, the battery PACK will be in three state positions, 1, a working position (to the bottom), that is, the position in normal working, as shown in the figure, Figure 5 As shown, 2, an isolation position (moved to the middle position), that is, the position before delivery, transportation or commissioning; 3, a maintenance position (to the bottom), that is, the position of maintenance or replacement of the battery box, as shown in the figure, Figure 7 As shown, a is a side view, and b is a perspective view. Only when the battery is in thermal runaway and on fire, the lead screw will rotate quickly, and the battery PACK will be thrown backward into the explosion-proof box 4 at the bottom through the explosion-proof channel 2.

[0034] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and decorations can be made without departing from the principle of the utility model, and these improvements and decorations should also be regarded as the protection range of the utility model.

Claims

1. A kind of energy storage battery cabinet capable of quickly cutting off battery PACK failure, it is characterized by: The application relates to a battery cabinet (1) which is provided with an explosion-proof channel (2) at the back, an explosion-proof box (4) at the bottom, a one-way door (3) between the explosion-proof channel (2) and the explosion-proof box (4) which opens downward, a plurality of supports (7) arranged in the battery cabinet (1) in the up-down direction, a battery PACK (6) slidingly arranged on the supports (7) in the front-back direction, a driving mechanism, a controller (11) and a backup power supply (10) arranged in the supports (7), wherein the driving mechanism is used for driving the battery PACK (6) to move, the backup power supply (10) is used for supplying power to the driving mechanism and the controller (11), the signal output end of the controller (11) is electrically connected with the driving mechanism, and the signal input end of the controller (11) is electrically connected with a power management system of the battery PACK (6).

2. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 1, characterized in that: The driving mechanism comprises a servo motor (12), the power switch of the servo motor (12) is connected with the signal output end of the controller (11), a driving sprocket (15) is arranged on the output shaft of the servo motor (12), the driving sprocket (15) drives a driven sprocket (13) to rotate through a chain (14), the driven sprocket (13) is installed at the front end of a lead screw (8), the lead screw (8) is rotatably arranged on the support (7), and the lead screw (8) is matched with a lead screw nut (9) arranged on the bottom surface of the battery PACK (6).

3. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 2, characterized in that: A slot (72) is arranged on the support (7) and used for accommodating the lead screw (8).

4. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 2, characterized in that: A hole (71) is arranged on the front side of the support (7) and used for the lead screw (8) to pass through, and a handle is arranged at the front end of the lead screw (8).

5. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 1, characterized in that: A pulley (61) is arranged at the lower part of the side surface of the battery PACK (6) and in contact with the upper surface of the support (7).

6. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 1, characterized in that: An automatic fire extinguishing system and a pressure relief device are arranged in the explosion-proof box (4).

7. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 1, characterized in that: A dry ice fire extinguisher is arranged on the top of the explosion-proof channel (2), the one-way door (3) is connected with the switch of the dry ice fire extinguisher through a connecting wire, and the dry ice fire extinguisher is pulled to work when the one-way door (3) is opened downward.

8. The energy storage battery cabinet capable of quickly cutting off battery PACK failure according to claim 1, characterized in that: An explosion-proof door (5) is arranged at the rear part of the explosion-proof box (4), and an observation window is arranged on the explosion-proof door (5).

Images