A battery fire early warning device

CN117673614BActive Publication Date: 2026-08-14STATE GRID FUJIAN ELECTRIC POWER RES INST +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-07
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0003]现有的电池火灾预警装置在使用时都是通过螺栓固定安装在电池箱的内部队锂电池进行检测预警,不仅安装较为麻烦,且不便于对其进行拆卸,当后期需要对其进行检修或维护时,需要耗费大量劳动力和时间对其进行拆卸,工作效率较低,并且固定安装的电池火灾预警装置不便于对其进行调整,容易导致温度传感器和烟敏传感器与锂电池之间存在一定的距离,导致预警时间存在一定的误差,影响其正常的使用效果,而且现有的电池火灾预警装置在长时间使用以后,因气流的影响,容易导致气流中的灰尘粘附在温度传感器和烟敏传感器表面,易对温度传感器和烟敏传感器的灵敏性产生影响

Benefits of technology

[0017] 1. The present invention is equipped with a linkage clamping mechanism, which can control the clamping blocks to move closer or further apart by rotating the bidirectional screw, thereby assembling and disassembling the device. This not only improves the convenience of installation, but also facilitates the inspection and maintenance of the device in the later stages.

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Abstract

This invention discloses a battery fire early warning device, including a battery box and a battery placed inside the battery box. A U-shaped connecting frame is detachably clamped on the side wall of the battery box. A linkage clamping mechanism is provided on the inner wall of the U-shaped connecting frame. A detection mechanism is provided at one end of the U-shaped connecting frame near the battery, and a control box is provided at the other end of the U-shaped connecting frame. This invention is equipped with a linkage clamping mechanism, which allows the device to be assembled and disassembled by rotating a bidirectional screw, improving the convenience of installation. At the same time, the detection mechanism can be adjusted according to the size and position of the battery to be close to the battery without affecting the real-time performance of the detection device, facilitating timely alarm in case of danger.
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Description

Technical Field

[0001] This invention relates to the field of battery fire early warning technology, specifically to a battery fire early warning device. Background Technology

[0002] Lithium-ion batteries are a common type of energy storage device, frequently used in energy storage systems for automobiles, electronic devices, and other fields. However, due to their inherent characteristics, lithium-ion batteries are prone to generating high temperatures inside when subjected to severe impacts, aging, or even short circuits, which can lead to explosions and combustion. To reduce the losses in lithium-ion battery energy storage systems, dedicated fire warning devices are often used.

[0003] Existing battery fire warning devices are bolted to the inside of the battery box to detect and warn of lithium batteries. This is not only cumbersome to install, but also inconvenient to disassemble. When maintenance or repair is needed later, disassembly requires a lot of labor and time, resulting in low work efficiency. Furthermore, the fixed installation of the battery fire warning device makes it difficult to adjust, which can easily lead to a certain distance between the temperature sensor and the smoke sensor and the lithium battery, causing errors in the warning time and affecting its normal use. Moreover, after prolonged use, the existing battery fire warning devices are prone to dust adhering to the surface of the temperature sensor and smoke sensor due to airflow, which can affect the sensitivity of the temperature sensor and smoke sensor. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a battery fire early warning device equipped with a linkage clamping mechanism. By rotating the bidirectional screw, the clamping blocks can be controlled to move closer or further apart, thereby enabling the device to be assembled and disassembled. This not only improves the ease of installation but also facilitates the subsequent inspection and maintenance of the device.

[0005] The technical solution of the present invention is as follows:

[0006] A battery fire early warning device includes a battery box and a battery placed inside the battery box. A U-shaped connecting frame is detachably clamped on the side wall of the battery box. A linkage clamping mechanism is provided on the inner wall of the U-shaped connecting frame. A detection mechanism is provided at one end of the U-shaped connecting frame near the battery. A control box is provided at the other end of the U-shaped connecting frame.

[0007] Furthermore, the linkage clamping mechanism includes a bidirectional screw, one end of which is rotatably connected to the inner wall of the U-shaped connecting frame near the battery, and the other end of which passes through the other inner wall of the U-shaped connecting frame. Clamping blocks are threadedly connected to both sides of the bidirectional screw, and the clamping blocks are respectively disposed on the inner and outer sides of the battery box.

[0008] Furthermore, the testing mechanism includes a mounting box and an L-shaped connecting plate. The L-shaped connecting plate is fixedly disposed at one end of the U-shaped connecting frame near the battery. A limit rod is provided on the lower side of the L-shaped connecting plate. The limit rod passes through the mounting box and is slidably connected to the mounting box.

[0009] Furthermore, a rack is fixedly installed on the top of the mounting box, the rack is meshed with a gear, and a rotating rod is fixedly connected to the axis of the gear.

[0010] Furthermore, the rotating rod passes through the L-shaped connecting plate and the U-shaped connecting frame in sequence, and a turntable is fixedly installed at the upper end of the rotating rod through the U-shaped connecting frame. The bottom of the turntable has a number of slots arranged in a ring.

[0011] Furthermore, the top of the U-shaped connecting frame is provided with a U-shaped driving cavity, and a U-shaped locking rod is embedded in the U-shaped driving cavity, with one end of the U-shaped locking rod being adapted to the locking groove.

[0012] Furthermore, a compression spring is connected between the U-shaped lever and the bottom wall of the U-shaped drive cavity.

[0013] Furthermore, the detection mechanism also includes a smoke sensor and a temperature sensor, which are disposed inside the mounting box on the side near the battery.

[0014] Furthermore, the mounting box has an opening on the side away from the battery, and a U-shaped rail is provided on the outside of the opening, with a dustproof net slidably connected to the U-shaped rail.

[0015] Furthermore, the control box is equipped with a main processor and an alarm device, and the main processor is electrically connected to the smoke sensor, temperature sensor and alarm device.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention is equipped with a linkage clamping mechanism, which can control the clamping blocks to move closer or further apart by rotating the bidirectional screw, thereby assembling and disassembling the device. This not only improves the convenience of installation, but also facilitates the inspection and maintenance of the device in the later stages.

[0018] 2. The present invention is equipped with a position-adjustable detection mechanism. Through the meshing transmission of gears and racks, the position of the detection mechanism relative to the battery can be adjusted, so that the detection mechanism can obtain information in time when a danger occurs, thereby triggering an alarm.

[0019] 3. The present invention is equipped with a dustproof mechanism to facilitate dust protection for the smoke sensor and temperature sensor, and to prevent dust from adhering to their surfaces and affecting their normal sensitivity. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the present invention;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0023] Figure 4 This is a schematic diagram of the linkage clamping mechanism of the present invention;

[0024] Figure 5 This is a partial structural diagram of the detection mechanism of the present invention.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Battery box; 2. Battery; 3. Smoke sensor; 4. Temperature sensor; 5. Turntable; 6. U-shaped drive cavity; 7. U-shaped clamping rod; 8. Control box; 9. Alarm device; 10. Main processor; 11. U-shaped connecting frame; 12. Compression spring; 13. Clamping block; 14. Slot; 15. Bidirectional screw; 16. Rubber pad; 17. Mounting box; 18. L-shaped connecting plate; 19. Rack; 20. Gear; 21. Rotating rod; 22. Limiting rod; 23. Opening; 24. Dustproof net; 25. U-shaped rail. Detailed Implementation

[0027] To make the content of this invention easier to understand, the technical solutions of this invention will be further described below in conjunction with specific embodiments and accompanying drawings, but this invention is not limited thereto.

[0028] Example 1

[0029] Please see Figure 1 A battery fire early warning device includes a battery box 1 and a battery 2 placed inside the battery box 1. A U-shaped connecting frame 11 is detachably clamped on the side wall of the battery box 1. A linkage clamping mechanism is provided on the inner wall of the U-shaped connecting frame 11. A detection mechanism is provided at one end of the U-shaped connecting frame 11 near the battery 2. A control box 8 is provided at the other end of the U-shaped connecting frame 11.

[0030] Combination Figure 4The linkage clamping mechanism includes a bidirectional screw 15. One end of the bidirectional screw 15 is rotatably connected to the inner wall of the U-shaped connecting frame 11 near the battery 2, and the other end of the bidirectional screw 15 passes through the other inner wall of the U-shaped connecting frame 11. Clamping blocks 13 are threadedly connected to both sides of the bidirectional screw 15. The clamping blocks 13 are respectively set on the inner and outer sides of the battery box 1. Rotating the bidirectional screw 15 can control the clamping blocks 13 to move closer or further apart, thereby facilitating the clamping of the U-shaped connecting frame 11 on the side wall of the battery box 1 or removing the U-shaped connecting frame 11 from the battery box 1, improving the ease of installation and removal of the device and facilitating the subsequent inspection and maintenance of the device.

[0031] Specifically, rubber pads 16 are provided on the opposite side of each of the two clamping blocks 13.

[0032] Example 2

[0033] The testing mechanism includes a mounting box 17 and an L-shaped connecting plate 18. The L-shaped connecting plate 18 is fixedly installed at one end of the U-shaped connecting frame 11 near the battery 2. A limit rod 22 is provided on the lower side of the L-shaped connecting plate 18. The limit rod 22 passes through the mounting box 17 and is slidably connected to the mounting box 17.

[0034] Combination Figure 3 A rack 19 is fixedly installed on the top of the mounting box 17. A gear 20 is meshed with the rack 19. A rotating rod 21 is fixedly connected to the axis of the gear 20.

[0035] Combination Figure 2 The rotating rod 21 passes through the L-shaped connecting plate 18 and the U-shaped connecting frame 11 in sequence. The upper end of the rotating rod 21 through the U-shaped connecting frame 11 is fixedly provided with a turntable 5. The bottom of the turntable 5 has a number of slots 14 arranged in a ring.

[0036] As a further preferred embodiment, the top of the U-shaped connecting frame 11 is provided with a U-shaped driving cavity 6, and a U-shaped locking rod 7 is embedded in the U-shaped driving cavity 6. One end of the U-shaped locking rod 7 is adapted to the locking groove 14.

[0037] As a further preferred embodiment, a compression spring 12 is connected between the U-shaped lever 7 and the bottom wall of the U-shaped drive cavity 6.

[0038] As can be seen from the above description, by pressing the U-shaped lever 7, the U-shaped lever 7 disengages from the slot 14. At this time, the rotating rod 21 can rotate. By manually operating the rotating rod 21, the gear 20 connected at the bottom will rotate. Under the action of the limiting rod 22, the rack 19 that meshes with the gear 20 moves horizontally. The mounting box 17 can move left and right along the limiting rod 22, so that the mounting box 17 can move closer to or further away from the battery 2.

[0039] As a further preferred embodiment, the detection mechanism also includes a smoke sensor 3 and a temperature sensor 4, which are disposed inside the mounting box 17 on the side near the battery 2.

[0040] As described above, the meshing transmission of gear 20 and rack 19 drives the smoke sensor 3 and temperature sensor 4 closer to the battery 2, so that an alarm can be triggered in time when danger occurs. When the smoke sensor 3 and temperature sensor 4 contact the side wall of the battery 2, the U-shaped lever 7 is released. The elastic force of the compression spring 12 makes the U-shaped lever 7 engage with the bottom slot 14 of the turntable 5, preventing the rotating rod 21 from rotating and affecting the stability of the smoke sensor 3 and temperature sensor 4.

[0041] Example 3

[0042] Please see Figure 5 An opening 23 is provided on the side of the mounting box 17 away from the battery 2. A U-shaped rail 25 is provided on the outside of the opening 23. A dustproof net 24 is slidably connected to the U-shaped rail 25.

[0043] As can be seen from the above description, the design of the dustproof net 24 can prevent dust from sticking to its surface and affecting its normal sensitivity. The U-shaped rail 25 makes it easy to disassemble the dustproof net 24 and facilitates cleaning of the dustproof net 24.

[0044] Example 4

[0045] The difference between this embodiment and the above embodiment is that the control box 8 is equipped with a main processor 10 and an alarm device 9, and the main processor 10 is electrically connected to the smoke sensor 3, the temperature sensor 4 and the alarm device 9.

[0046] As can be seen from the above description, when the temperature of battery 2 is too high, the temperature sensor 4 detects it and transmits the information to the terminal through the main processor 10, so that the staff can understand and take corresponding actions in a timely manner. When the temperature of battery 2 reaches a certain value and produces smoke, both the smoke sensor 3 and the temperature sensor 4 transmit the detected information to the terminal through the main processor 10. At the same time, the main processor 10 controls the alarm device 9 to sound an alarm, so that the staff can discover and deal with it in a timely manner and avoid increasing economic losses.

[0047] In summary, this battery fire early warning device can be disassembled and assembled by rotating the bidirectional screw 15. At the same time, the smoke sensor 3 and temperature sensor 4 can be adjusted according to the size and position of the battery 2 to be close to the battery 2 without affecting the real-time performance of the detection device, so as to facilitate timely alarm when danger occurs. The dustproof net 24 can protect the smoke sensor 3 and temperature sensor 4 from dust and avoid affecting their sensitivity.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A battery fire early warning device, characterized in that: Includes a battery box (1) and a battery (2) placed inside the battery box (1). A U-shaped connecting frame (11) is detachably clamped on the side wall of the battery box (1). A linkage clamping mechanism is provided on the inner wall of the U-shaped connecting frame (11). A detection mechanism is provided at one end of the U-shaped connecting frame (11) near the battery (2). A control box (8) is provided at the other end of the U-shaped connecting frame (11). The linkage clamping mechanism includes a bidirectional screw (15), one end of which is rotatably connected to the inner wall of the U-shaped connecting frame (11) near the battery (2), and the other end of which passes through the other inner wall of the U-shaped connecting frame (11). Clamping blocks (13) are threadedly connected to both sides of the bidirectional screw (15), and the clamping blocks (13) are respectively arranged on the inner and outer sides of the battery box (1). The testing mechanism includes a mounting box (17) and an L-shaped connecting plate (18). The L-shaped connecting plate (18) is fixedly installed on one end of the U-shaped connecting frame (11) near the battery (2). A limiting rod (22) is provided on the lower side of the L-shaped connecting plate (18). The limiting rod (22) passes through the mounting box (17) and is slidably connected to the mounting box (17). A rack (19) is fixedly installed on the top of the mounting box (17), and a gear (20) is meshed with the rack (19). A rotating rod (21) is fixedly connected to the axial position of the gear (20).

2. The battery fire early warning device according to claim 1, characterized in that: The rotating rod (21) passes through the L-shaped connecting plate (18) and the U-shaped connecting frame (11) in sequence. The upper end of the rotating rod (21) through the U-shaped connecting frame (11) is fixedly provided with a turntable (5). The bottom of the turntable (5) has a number of slots (14) arranged in a ring.

3. The battery fire early warning device according to claim 2, characterized in that: The top of the U-shaped connecting frame (11) is provided with a U-shaped driving cavity (6), and a U-shaped locking rod (7) is embedded in the U-shaped driving cavity (6). One end of the U-shaped locking rod (7) is adapted to the locking groove (14).

4. A battery fire early warning device according to claim 3, characterized in that: A compression spring (12) is connected between the U-shaped lever (7) and the bottom wall of the U-shaped drive cavity (6).

5. A battery fire early warning device according to claim 1, characterized in that: The detection mechanism also includes a smoke sensor (3) and a temperature sensor (4), which are located inside the mounting box (17) on the side near the battery (2).

6. A battery fire early warning device according to claim 1, characterized in that: The mounting box (17) has an opening (23) on the side away from the battery (2), and a U-shaped rail (25) is provided on the outside of the opening (23). A dustproof net (24) is slidably connected to the U-shaped rail (25).

7. A battery fire early warning device according to claim 5, characterized in that: The control box (8) is equipped with a main processor (10) and an alarm device (9). The main processor (10) is electrically connected to the smoke sensor (3), the temperature sensor (4) and the alarm device (9).

Citation Information

Patent Citations

  • Automobile air conditioning liquid storage tank clamping detector

    CN110017974A

  • Battery overheating alarm device of new energy automobile

    CN213167699U