Special fire detector for easy-to-maintain lithium ion battery box

Abstract

The utility model provides an easy-to-maintain lithium ion battery box special-purpose fire hazard detector, the detector integrates a plurality of sensors and is installed on the wall of the battery box, the sensing module stretches into the battery box through the structure of the detector, a plurality of environmental data of a fire hazard in the battery box can be collected through the protection cover provided with air holes, and the fire hazard detection is convenient. Hidden dangers generated in the operation process of the electrochemical energy storage system are comprehensively judged, and an alarm is given. The sensing module is fixed in a box body, outside the battery box, of the fire detector structure, and can be conveniently disassembled, maintained or replaced outside the battery box. The product meets the function that the fire detector needs to sample the environment in the detection battery box, also considers the requirements of convenient disassembly and maintenance, and has a wide application prospect.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical energy storage, and in particular to a fire detector specifically designed for easy-to-maintain lithium-ion battery boxes. Background Technology

[0002] The energy storage industry has recently experienced rapid growth, with an increasing number of electrochemical energy storage power stations being installed. However, the lithium-ion batteries used in these stations are inherently dangerous chemical components containing high-energy substances, necessitating the installation of sensitive fire-fighting equipment to prevent fire accidents. Lithium-ion batteries are typically housed in battery packs within energy storage stations. Currently, many battery packs using liquid cooling systems are IP67 sealed structures. If early thermal runaway occurs in a cell within the pack, it is difficult to detect from the outside. Therefore, fire detectors must be installed inside the battery pack. The battery pack is generally assembled within the battery clusters of the energy storage station and is a sealed structure. Once installed and operational, it is difficult to open the pack for maintenance. Therefore, if a fire detector installed inside the battery pack malfunctions, it is difficult to inspect, maintain, or replace it. Currently, dedicated fire detectors for lithium-ion batteries are typically composite detectors, equipped with sensors for hydrogen, carbon monoxide, VOCs, and smoke. The sensitive combustible gas sensors require regular maintenance and calibration, which presents a significant challenge for fire detectors installed within the battery pack. Utility Model Content

[0003] In response to the current state of the technology, this utility model proposes a fire detector specifically for easy-to-maintain lithium-ion battery boxes, solving the complex problem of needing convenient and regular maintenance or replacement of fire detectors installed in battery boxes of energy storage power stations.

[0004] Technical solution:

[0005] A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes includes a protective cover, a rear sealing ring, a front sealing ring, a middle housing, a housing, and a sensor module, with the sensor module installed inside the housing. The protective cover is installed on the inner side of the battery box wall, and the rear sealing ring is installed on the outer side of the battery box wall. Rivets for the protective cover pass sequentially through the protective cover, the battery box wall, the rear sealing ring, and the middle housing to fix each component. Screws for the housing also pass sequentially through the housing, the front sealing ring, and the middle housing to fix each component. A through hole, no larger than the inner diameter of the rear sealing ring, is opened on the battery box wall, allowing the sensor module to be exposed inside the battery box through the through hole and the protective cover.

[0006] Preferably, the housing is equipped with a connection socket that can be connected to an external connector for deploying power, communication, and control lines.

[0007] Preferably, the entire structure consisting of the housing, rear sealing ring, middle housing, and front sealing ring, which are fixed to the battery box wall with screws, is waterproof.

[0008] Preferably, the detection protective cover, the housing, and the middle housing are metal structures.

[0009] Preferably, the detection protective cover has ventilation holes.

[0010] Preferably, the sensor module integrates a microcontroller unit, a communication module, an alarm drive module, a communication interface, an alarm drive interface, and multiple sensors.

[0011] Preferably, the sensor module is equipped with a variety of sensors, including but not limited to temperature sensors, volatile organic compound sensors, smoke sensors, carbon monoxide sensors, and hydrogen sensors.

[0012] Beneficial effects of this utility model

[0013] This invention provides a fire detector specifically designed for easy-to-maintain lithium-ion battery boxes. The fire detector is a fixed structure mounted on the battery box wall. Its sensing module integrates multiple sensors and extends into the battery box through the detector's structure. It collects environmental samples of the battery box's interior in the event of a fire, using a protective cover with ventilation holes. This comprehensive assessment determines potential hazards during the operation of the electrochemical energy storage system and triggers an alarm. The sensing module is fixed within a housing outside the battery box, allowing for easy removal, maintenance, or replacement. The portion of the detector located outside the housing is waterproof, ensuring that installation does not compromise the overall protection level of the battery box. This product satisfies the need for fire detectors to sample the environment inside the battery box while also offering convenient disassembly and maintenance, making it a promising product for future applications. Attached Figure Description

[0014] Figure 1 This is an exploded view of the structure of this utility model.

[0015] Figure 2 This is a cross-sectional view of the utility model in use. Detailed Implementation

[0016] The present invention will be further described below with reference to embodiments, but the scope of protection of the present invention is not limited thereto:

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Combination Figure 1 and Figure 2 A fire detector for easy-to-maintain lithium-ion battery boxes. The detector will include a protective cover 1, a rear sealing ring 2, a front sealing ring 3, a middle box 4, a box 5, and a sensor module 6. The sensor module 6 is fixedly installed inside the box 5. The protective cover 1 and the box 5 are made of stainless steel stamping parts, and the protective cover 1 has ventilation holes.

[0019] The detection protective cover 1 is installed inside the battery box wall 10, and the rear sealing ring 2 is tightly attached to the battery box wall 10 and installed outside the battery box wall 10. The detection protective cover 1 is connected and fixed to the middle box 4 by the protective cover screw 9 and is fixed on the battery box wall 10.

[0020] A through hole 12, no larger than the inner diameter of the rear sealing ring 2, is opened on the battery box wall 10. The sensor module 6 can be exposed inside the battery box through the through hole 12 and the detection protective cover 1 to sample the internal environment of the detection battery box.

[0021] The box body 5 and the front sealing ring 3 are connected and fixed to the middle box body 4 by the box body screws 8.

[0022] The rear sealing ring 2 and the front sealing ring 3 are rubber gaskets. The box body 5, the rear sealing ring 2, the middle box body 4, and the front sealing ring 3 are fixed to the outer wall of the battery box with screws to form a waterproof structure.

[0023] The housing 5 is equipped with a connection socket 7, which can be connected to the external line connection plug 11 for power supply, communication and external control of the detector. In this embodiment, the socket 7 is an 8-pin socket, with reserved connection lines for power supply, 1 CAN communication, 1 alarm interface and 1 drive interface. The alarm interface can output alarms to the outside, and the drive interface can be used to drive the external fire extinguishing device to release fire extinguishing agent to extinguish the fire.

[0024] Sensor module 6 integrates a microcontroller unit, a communication module, an alarm drive module, a communication interface, an alarm drive interface, and various sensors. In this embodiment, the sensors are a temperature sensor, a volatile organic compound sensor, a smoke sensor, a carbon monoxide sensor, and a hydrogen sensor.

[0025] For ease of explanation, in this embodiment, sensor module 6 is a circuit board that integrates the following sensors and integrated circuit modules:

[0026] Microcontroller Unit: HC89S003AF4P7M

[0027] Communication module: ADM2483BRWZ

[0028] Alarm driver module: MJE253G

[0029] Hydrogen sensor: TGS2610

[0030] Carbon monoxide sensor: MIX8015

[0031] Smoke sensor: MQ-2

[0032] Temperature sensor: LMT01-Q1

[0033] Volatile Organic Compound Sensor: TGS5141

[0034] Of course, the purpose of this utility model can also be achieved by using components from other sources and of other models.

[0035] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes, characterized in that... The detector includes a detection protective cover (1), a rear sealing ring (2), a front sealing ring (3), a middle box (4), a box (5), and a sensor module (6). The sensor module (6) is installed inside the box (5). The detection protective cover (1) is installed on the inner side of the battery box wall (10), and the rear sealing ring (2) is installed on the outer side of the battery box wall (10). The protective cover rivets (9) pass through the detection protective cover (1), the battery box wall (10), the rear sealing ring (2), and the middle box (4) in sequence to fix each component. The box screws (8) pass through the box (5), the front sealing ring (3), and the middle box (4) in sequence to fix each component. A through hole (12) with a diameter no larger than the inner diameter of the rear sealing ring (2) is opened on the battery box wall (10). The sensor module (6) can be exposed inside the battery box through the through hole (12) and the detection protective cover (1).

2. The fire detector for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The housing (5) is equipped with a connection socket (7), which can be connected to an external connection plug (11) for the deployment of power, communication and control lines.

3. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The box body (5), rear sealing ring (2), middle box body (4), and front sealing ring (3) are fixed to the battery box wall with screws, forming a waterproof structure.

4. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The detection protective cover (1), the box body (5), and the middle box body (4) are all metal structures.

5. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The detection protective cover (1) has ventilation holes.

6. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The sensor module (6) integrates a microcontroller unit, a communication module, an alarm drive module, a communication interface, an alarm drive interface, and various sensors.

7. A fire detector specifically designed for easy-to-maintain lithium-ion battery boxes according to claim 1, characterized in that... The sensor module (6) is equipped with a variety of sensors, including but not limited to temperature sensors, volatile organic compound sensors, smoke sensors, carbon monoxide sensors, and hydrogen sensors.

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