Explosion-proof structure for new energy battery

Abstract

The utility model discloses an explosion-proof structure for a new energy battery in the related technical field of explosion-proof structures, which comprises an explosion-proof box and one-way valves connected with the explosion-proof box, one side of the explosion-proof box is fixedly connected with three one-way valves, each one-way valve is provided with a valve interface, and each valve interface is connected with a box interface through an air guide pipe. Through the design of the first pressure sensor, the gas storage bottle and the electromagnetic valve, an alarm can be given out when the pressure of the battery box is too high, nitrogen can be supplied to the battery box when the pressure of the battery box is low, the negative pressure in the battery box is reduced, meanwhile, the air content in the battery box is reduced, combustion is avoided, and the service life of the battery box is prolonged. The device is simple in structure and high in practicability and safety, through the design of the detection box and the one-way valve, high voltage in the battery box can be detected without the action of electric energy, air is exhausted to the outside through the one-way valve, the anti-explosion performance of the device is improved, and the practicability and safety of the device are further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to explosion-proof structures, and specifically relates to an explosion-proof structure for new energy batteries. Background Art

[0002] The exhaust check valve and the intake check valve in the traditional explosion-proof structure both adopt a valve structure, and the opening and closing of the valve structure depends on its deformation, so the material of the valve structure is usually elastic materials such as rubber and plastic. Therefore, the high temperature resistance of the exhaust check valve and the intake check valve in the explosion-proof structure is relatively poor, and it is easy to be damaged and fail due to high temperature, so that the air outlet hole or the air intake hole cannot be fully opened or closed, so that the airway cannot be fully opened or closed. In addition, when the valve structure is performing exhaust and intake control, the control accuracy is not high because it is a flexible product. The explosion-proof structure of a new energy vehicle battery proposed in patent CN202222071521.9 has high high temperature resistance through the exhaust check valve and the intake check valve, and is not easily damaged and failed due to high temperature. Therefore, when the internal air pressure of the battery box is balanced with the external atmosphere, the airway can be reliably closed to ensure the isolation between the inside of the battery box and the external atmosphere. The reliability is high, and it can also more effectively prevent external oxygen from entering the battery box, play a flame retardant role when the battery pack burns, reduce the intensity of combustion, and buy more escape time for passengers. Although the patent meets the requirements of use to a certain extent, it is found in actual use that the design directly delivers air to the battery box during the intake process. Although it is suitable for most cases, if the temperature in the battery box is too high due to combustion, this design is obviously not suitable and there are certain safety hazards.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an explosion-proof structure for new energy batteries. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] Explosion-proof structure for new energy battery, including an explosion-proof box and a one-way valve connected thereto. Three one-way valves are fixedly connected to one side of the explosion-proof box. A valve interface is provided on the one-way valve, and the valve interface is connected to the box interface through a gas guide pipe. The box interface is embedded in the detection box, and the detection box is embedded in the explosion-proof box, and one end of the detection box is embedded inside the battery box. A gas cylinder seat is provided on one side of the detection box, and the gas cylinder seat is fixedly connected to the explosion-proof box. A gas storage tank is embedded in the gas cylinder seat, and one end of the gas storage tank is communicated with the inside of the battery box through a pressure stabilizing pipe. An electromagnetic valve is provided on the pressure stabilizing pipe. One end inside the explosion-proof box is provided with a first pressure sensor, and the first pressure sensor is embedded in the explosion-proof box and the battery box. The one-way valve facilitates the device to exhaust gas. The detection box plays a role in detecting pressure and reducing pressure. The gas storage tank facilitates providing high-pressure nitrogen for the device. The electromagnetic valve plays a role in controlling the opening and closing of the pressure stabilizing pipe. The first sensor facilitates detecting the pressure inside the battery box.

[0006] As a further scheme of the present utility model: A box cover is fixedly connected to the explosion-proof box, and a touch display screen is embedded in the box cover. A control board is fixedly connected inside the explosion-proof box, and the touch display screen is connected to the control board through a wire. Through the above design, automatic control is facilitated.

[0007] As a further scheme of the present utility model: A driving power supply is provided on one side of the control board, and a acquisition card is provided on the side of the driving power supply away from the gas cylinder seat. The driving power supply and the acquisition card are both fixedly connected to the explosion-proof box. The driving power supply facilitates power conversion, and the acquisition card facilitates collecting sensor signals.

[0008] As a further scheme of the present utility model: A second pressure sensor is embedded in the gas storage tank, and the first pressure sensor and the second pressure sensor are both connected to the acquisition card through wires. The second pressure sensor facilitates detecting the pressure inside the gas storage tank.

[0009] As a further scheme of the present utility model: The detection box is composed of a protective cover, a box body and an adjustment disc. The protective cover adopts a hollow design, and the protective cover is sleeved on one end of the box body. The box interface is embedded in the box body. The protective cover plays a role in protection and diversion, and the box body plays a role in stable support.

[0010] As a further scheme of the present utility model: A support frame is embedded at one end of the box body, a ball bearing is embedded in the support frame, a bearing end cover is provided on one side of the ball bearing, one side of the adjustment disc is connected with an adjustment screw through a fixing screw, and the adjustment screw is embedded on the ball bearing. The bearing end cover plays a role in limiting, and the adjustment screw plays a role in power transmission.

[0011] As a further solution of the present utility model: an adjusting frame is sleeved on the adjusting screw, two guiding columns are embedded in the adjusting frame, one end of the guiding column is fixedly connected to the supporting frame, a stabilizing pressure plate is embedded at the other end of the box body, the stabilizing pressure plate and the box body are in clearance fit, a pressure spring is arranged between the stabilizing pressure plate and the adjusting frame, the adjusting frame plays a role in pressure adjustment, and the pressure spring provides a reset power for the device.

[0012] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art.

[0013] In the present utility model, through the design of the first pressure sensor, the gas storage tank and the electromagnetic valve, not only can an alarm be issued when the pressure in the battery box is too high, but also when the pressure in the battery box is too low, nitrogen can be supplied to it, while reducing the negative pressure in the battery box, the air content in the battery box is also reduced, avoiding the occurrence of combustion, and the practicability and safety are relatively high.

[0014] In the present utility model, through the design of the detection box and the one-way valve, the high pressure in the battery box can be detected without the action of electric energy, and the gas can be exhausted to the outside through the one-way valve, improving the explosion-proof performance of the device, and further improving the practicability and safety of the device.

[0015] The following further describes in detail the specific implementation manners of the present utility model with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings, as a part of this application, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the drawings described below are only some embodiments, and for those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In the attached

[0017] In the figures:

[0018] Figure 1 is the structural schematic diagram of the present utility model;

[0019] Figure 2 is the installation schematic diagram of the present utility model;

[0020] Figure 3 is the front view of the present utility model;

[0021] Figure 4 is the internal structural schematic diagram of the detection box of the present utility model.

[0022] In the figure: 1. Explosion-proof box; 2. Check valve; 3. Box cover; 4. Touch display screen; 5. Battery box; 6. First pressure sensor; 7. Control board; 8. Detection box; 9. Gas storage tank; 10. Drive power supply; 11. Acquisition card; 12. Gas cylinder seat; 13. Second pressure sensor; 14. Voltage stabilizing tube; 15. Solenoid valve; 16. Valve interface; 17. Adjusting disk; 18. Fixing screw; 19. Bearing end cover; 20. Support frame; 21. Ball bearing; 22. Adjusting frame; 23. Guide post; 24. Box interface; 25. Pressure spring; 26. Box body; 27. Protective cover; 28. Stable pressing plate; 29. Adjusting screw.

[0023] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0025] As Figures 1 to 4 shown, the explosion-proof structure for new energy batteries includes an explosion-proof box 1 and a check valve 2 connected thereto. Three check valves 2 are fixedly connected to one side of the explosion-proof box 1. A valve interface 16 is provided on the check valve 2. The valve interface 16 is connected to the box interface 24 through a gas pipe. The box interface 24 is embedded in the detection box 8, and the detection box 8 is embedded in the explosion-proof box 1. One end of the detection box 8 is embedded inside the battery box 5. A gas cylinder seat 12 is provided on one side of the detection box 8. The gas cylinder seat 12 is fixedly connected to the explosion-proof box 1. A gas storage tank 9 is embedded in the gas cylinder seat 12. One end of the gas storage tank 9 is communicated with the inside of the battery box 5 through a voltage stabilizing tube 14. A solenoid valve 15 is provided on the voltage stabilizing tube 14. A first pressure sensor 6 is provided at one end inside the explosion-proof box 1. The first pressure sensor 6 is embedded in the explosion-proof box 1 and the battery box 5. The check valve 2 facilitates the device to exhaust gas. The detection box 8 plays a role in detecting pressure and reducing pressure. The gas storage tank 9 facilitates providing high-pressure nitrogen for the device. The solenoid valve 15 plays a role in controlling the opening and closing of the voltage stabilizing tube 14. The first sensor facilitates detecting the pressure inside the battery box 5.

[0026] Among them, a box cover 3 is fixedly connected to the explosion-proof box 1. A touch display screen 4 is embedded in the box cover 3. A control board 7 is fixedly connected inside the explosion-proof box 1. The touch display screen 4 is connected to the control board 7 through a wire. Through the above design, automatic control is facilitated.

[0027] On one side of the control board 7, there is a drive power supply 10. On the side of the drive power supply 10 away from the gas cylinder seat 12, there is a data acquisition card 11. Both the drive power supply 10 and the data acquisition card 11 are fixedly connected to the explosion-proof box 1. The drive power supply 10 facilitates power conversion, and the data acquisition card 11 facilitates the acquisition of sensor signals.

[0028] An embedded second pressure sensor 13 is installed on the gas storage tank 9. Both the first pressure sensor 6 and the second pressure sensor 13 are connected to the data acquisition card 11 through wires. The second pressure sensor 13 facilitates the detection of the pressure inside the gas storage tank.

[0029] The detection box 8 is composed of a protective cover 27, a box body 26, and an adjustment disk 17. The protective cover 27 adopts a hollow design. The protective cover 27 is sleeved on one end of the box body 26. An embedded box interface 24 is installed on the box body 26. The protective cover 27 plays a role in protection and guiding the flow, and the box body 26 plays a role in stable support.

[0030] One end of the box body 26 is embedded with a support frame 20. A ball bearing 21 is embedded in the support frame 20. On one side of the ball bearing 21, there is a bearing end cover 19. One side of the adjustment disk 17 is connected to an adjustment screw rod 29 through a fixing screw 18. The adjustment screw rod 29 is embedded on the ball bearing 21. The bearing end cover 19 plays a role in limiting, and the adjustment screw rod 29 plays a role in power transmission.

[0031] An adjustment frame 22 is sleeved on the adjustment screw rod 29. Two guide posts 23 are embedded in the adjustment frame 22. One end of the guide post 23 is fixedly connected to the support frame 20. A stabilizing pressure plate 28 is embedded at the other end of the box body 26. A clearance fit is adopted between the stabilizing pressure plate 28 and the box body 26. A pressure spring 25 is arranged between the stabilizing pressure plate 28 and the adjustment frame 22. The adjustment frame 22 plays a role in pressure adjustment, and the pressure spring 25 provides a reset power for the device.

[0032] The working principle of the present utility model is as follows: Before use, install the device as needed. When in use, when the first pressure sensor 6 works, it detects the pressure in the battery box 5. If it is found that the pressure exceeds the highest set value, an alarm is issued through the control board 7 to remind the user to stop the machine and check the battery box 5 and the detection box 8. During the operation of the first pressure sensor 6, when the pressure is below the highest set value of the first pressure sensor 6 but exceeds the highest pressure set value of the detection box 8, the gas in the battery box 5 passes through the protective cover 27 and pushes the pressure stabilizing plate 28 to move upward, compressing the spring. When the pressure stabilizing plate 28 moves upward beyond the set position, at this time, the inside of the battery box 5 is connected to the one-way valve 2 through the box body 26, the box interface 24, the air duct and the valve interface 16, and exhausts through the one-way valve 2. When the pressure in the battery box 5 decreases, the pressure stabilizing plate 28 moves downward until it returns to the set position, and the one-way valve 2 stops exhausting. When the first pressure sensor 6 detects a lower pressure, the solenoid valve 15 works, the voltage stabilizing tube 14 conducts, and the nitrogen in the gas storage tank 9 is transported into the battery box 5 until the pressure reaches the lowest set value, then the solenoid valve 15 stops working and the voltage stabilizing tube 14 closes. During the use of the device, the second pressure sensor 13 can detect the pressure of the gas storage tank to replace the gas storage tank in time. In addition, the position of the adjusting frame 22 can be moved by rotating the adjusting disc 17, thereby adjusting the pressure resistance value of the detection box 8. The structure of the present utility model is reasonably designed and convenient for installation and use. Through the design of the first pressure sensor 6, the gas storage tank and the solenoid valve 15, not only can an alarm be issued when the pressure in the battery box 5 is too high, but also nitrogen can be supplied to the battery box 5 when the pressure in the battery box 5 is low, while reducing the negative pressure in the battery box 5 and the air content in the battery box 5, avoiding the occurrence of combustion, and having high practicability and safety. Through the design of the detection box 8 and the one-way valve 2, the high pressure in the battery box 5 can be detected without the action of electric energy, and the gas can be exhausted to the outside through the one-way valve 2, improving the explosion-proof performance of the device and further enhancing the practicability and safety of the device.

[0033] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art of this patent, without departing from the technical solution scope of the present utility model, can make some changes or modifications using the technical content prompted above as equivalent embodiments of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An explosion-proof structure for a new energy battery, comprising an explosion-proof box (1) and a one-way valve (2) connected thereto, characterized in that: The three one-way valves (2) are fixedly connected to one side of the explosion-proof box (1); the one-way valves (2) are provided with valve interfaces (16); the valve interfaces (16) are connected to the box interfaces (24) via air guide tubes; the box interfaces (24) are embedded in the detection box (8); the detection box (8) is embedded in the explosion-proof box (1); one end of the detection box (8) is embedded in the interior of the battery box (5); and a gas cylinder seat (12) is provided on one side of the detection box (8). The gas cylinder seat (12) is fixedly connected to the explosion-proof box (1), a gas storage tank (9) is embedded in the gas cylinder seat (12), one end of the gas storage tank (9) is connected to the inside of the battery box (5) through a voltage regulator tube (14), and a solenoid valve (15) is provided on the voltage regulator tube (14). A No. 1 pressure sensor (6) is provided at one end of the inside of the explosion-proof box (1), and the No. 1 pressure sensor (6) is embedded in the explosion-proof box (1) and the battery box (5).

2. The explosion-proof structure for new energy batteries according to claim 1, characterized in that: The explosion-proof box (1) is fixedly connected to a box cover (3), a touch display screen (4) is embedded in the box cover (3), and a control panel (7) is fixedly connected inside the explosion-proof box (1).

3. The explosion-proof structure for new energy batteries according to claim 2, characterized in that: A driving power source (10) is provided on one side of the control board (7), and a collection card (11) is provided on the side of the driving power source (10) away from the gas cylinder seat (12), and both the driving power source (10) and the collection card (11) are fixedly connected to the explosion-proof box (1).

4. The explosion-proof structure for new energy batteries according to claim 3, characterized in that: The gas storage tank (9) is embedded with a No. 2 pressure sensor (13), and the No. 1 pressure sensor (6) and the No. 2 pressure sensor (13) are both connected to the acquisition card (11) via wires.

5. The explosion-proof structure for new energy batteries according to claim 1, characterized in that: The detection box (8) is composed of a protective cover (27), a box body (26) and an adjustment disk (17); the protective cover (27) is of hollow design; the protective cover (27) is sleeved on one end of the box body (26); and the box interface (24) is embedded in the box body (26).

6. The explosion-proof structure for new energy batteries according to claim 5, characterized in that: A support frame (20) is embedded in one end of the box body (26), a ball bearing (21) is embedded in the support frame (20), a bearing end cover (19) is provided on one side of the ball bearing (21), and an adjusting screw (29) is connected to one side of the adjusting disk (17) via a fixing screw (18).

7. The explosion-proof structure for new energy batteries according to claim 6, characterized in that: An adjusting frame (22) is sleeved on the adjusting screw rod (29), two guide columns (23) are embedded in the adjusting frame (22), one end of the guide column (23) is fixedly connected to the supporting frame (20), a pressure stabilizing plate (28) is embedded in the other end of the box body (26), a clearance fit is adopted between the pressure stabilizing plate (28) and the box body (26), and a pressure spring (25) is arranged between the pressure stabilizing plate (28) and the adjusting frame (22).

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