Waterproof passive self-triggering fire extinguishing module device
By combining multiple sealing and waterproofing mechanisms with a temperature-sensing triggering mechanism, the problem of poor waterproofing of passive automatic fire extinguishing modules is solved, enabling reliable operation and extended lifespan in harsh environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海裕隆盈新材料科技有限公司
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-26
AI Technical Summary
Existing passive automatic fire extinguishing modules have poor waterproofing, resulting in a short service life in harsh environments.
The device employs a multi-layered sealing and waterproofing mechanism, including threaded rod and bolt locking, rubber block sealing, and water-absorbing resin to absorb moisture. Combined with a temperature-sensing triggering mechanism, this ensures reliable operation of the device in harsh environments.
It significantly extends the service life of the self-triggered fire suppression module, is suitable for harsh working conditions such as humid and dusty environments, and prevents moisture corrosion and short-circuit failure.
Smart Images

Figure CN224404233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire prevention devices for electrical equipment, specifically a waterproof, self-triggered fire extinguishing module device. Background Technology
[0002] With the widespread use of electrical equipment, fires caused by its use are commonplace. Therefore, many electrical devices are equipped with passive automatic fire extinguishing systems. A passive automatic fire extinguishing system is a device that automatically activates its extinguishing mechanism based on temperature changes or flame detection. When the passive automatic fire extinguishing system inside an electrical cabinet encounters an electric arc or abnormally high temperature, it can automatically sense and rapidly release highly insulating nano-microcapsule particles. This blocks the conditions necessary for flame combustion within the electrical equipment space, thereby achieving effective control and active protection against internal fires and arcs.
[0003] For example, a passive automatic fire extinguishing module for electrical equipment with multiple triggers, patent number CN116407792A, is described in the prior art. This module has multiple independent fire extinguishing chambers and thermally sensitive wires with different temperature sensing ranges in each chamber. The thermally sensitive wires can trigger the extinguishing agent multiple times for intelligent fire extinguishing, solving the problem that existing passive automatic fire extinguishing devices can only trigger fire extinguishing once and cannot deal with reignition.
[0004] However, in use, the existing passive automatic fire extinguishing modules have poor waterproof performance, and their service life is short in harsh environments.
[0005] Therefore, in order to address the above issues, the applicant needs to design a waterproof, self-triggered fire extinguishing module device to solve the problems. Utility Model Content
[0006] The purpose of this invention is to provide a waterproof, self-triggered fire extinguishing module device to solve the problems mentioned in the background section.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a waterproof, self-triggered fire extinguishing module device, comprising a lower housing, a placement module, and an upper housing. The lower housing includes a lower outer shell, and the interior of the lower outer shell is provided with a cavity. The placement module is disposed within the cavity, and a connecting post is provided within the cavity. A threaded rod is provided on the connecting post. The placement module includes a placement block for placing the self-triggered fire extinguishing module. A connecting ear is integrally provided on the placement block, and a foolproof hole is provided on the connecting ear. The upper housing includes an upper outer shell, and the upper outer shell is provided with an installation hole. The threaded rod, in conjunction with the foolproof hole and the installation hole, is used to lock the lower housing, the placement module, and the upper housing.
[0008] Furthermore, the lower outer shell is provided with a lower groove, the upper outer shell is provided with an upper groove, and rubber blocks are provided inside the upper groove and the lower groove.
[0009] Furthermore, the lower outer shell is provided with a lower groove, the upper outer shell is provided with an upper groove, and storage frames containing waterproof materials are provided inside the upper groove and the lower groove.
[0010] Furthermore, the waterproof material is a water-absorbing resin.
[0011] Furthermore, the storage frame is provided with holes, and the holes are used for water to enter the storage frame.
[0012] Furthermore, the threaded rod is threaded with a bolt, and the outer diameter of the bolt is larger than the diameter of the mounting hole.
[0013] Furthermore, a washer is fitted onto the threaded rod, and the washer is located below the bolt.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the waterproof self-triggered fire extinguishing module device is easy to waterproof, thereby improving the service life of the self-triggered fire extinguishing module, and it is suitable for harsh environments and has a wide range of applications. The specific details are as follows:
[0015] This waterproof, self-triggered fire extinguishing module device utilizes a multi-layered waterproof sealing mechanism combined with a temperature-sensing triggering mechanism to ensure reliable operation in harsh environments. First, the lower and upper housings are locked together by threaded rods and bolts. The bolts cover the mounting holes and compress the gaskets, forming the first physical seal. Simultaneously, the rubber blocks embedded in the lower and upper grooves are compressed, deforming and filling the housing joints to create a second flexible sealing barrier, effectively preventing the intrusion of external liquid water. Second, a small amount of water vapor seeps in through the holes in the storage frame within the mating chamber of the lower and upper grooves. This moisture is efficiently absorbed and gelled by the absorbent resin, maintaining internal dryness. When abnormal high temperatures or electric arcs occur inside the electrical cabinet, the self-triggered fire extinguishing module placed on the storage block senses the temperature change and automatically triggers the release of highly insulating nano-microcapsule fire extinguishing agents, blocking combustion conditions to extinguish the fire. Throughout the process, the reliable waterproof structure protects the core fire extinguishing module from moisture corrosion or short-circuit failure, significantly extending its service life in humid, dusty, and other harsh conditions. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall three-dimensional disassembled structure of this utility model;
[0017] Figure 2 This is a schematic diagram showing the disassembled structure of the lower shell, rubber block, and storage frame of this utility model;
[0018] Figure 3This utility model Figure 2 Enlarged structural diagram at point A;
[0019] Figure 4 This is a three-dimensional structural diagram of the placement module of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of the upper shell of this utility model.
[0021] In the diagram: 1. Lower shell; 2. Module placement; 3. Upper shell; 10. Lower outer shell; 11. Cavity; 12. Connecting post; 13. Threaded rod; 14. Bolt; 15. Lower groove; 16. Rubber block; 17. Lower slot; 18. Storage frame; 19. Gasket; 20. Placement block; 21. Connecting ear; 22. Foolproof hole; 30. Upper outer shell; 31. Mounting hole; 32. Upper groove; 33. Upper slot; 180. Hole. Detailed Implementation
[0022] 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.
[0023] like Figures 1-5 As shown, the waterproof, self-triggered fire extinguishing module device of this utility model includes a lower housing 1, a placement module 2, and an upper housing 3. The lower housing 1 includes a lower outer shell 10, and the lower outer shell 10 has a cavity 11 inside, and the placement module 2 is disposed in the cavity 11. A connecting post 12 is disposed in the cavity 11, and a threaded rod 13 is disposed on the connecting post 12. The placement module 2 includes a placement block 20 for placing the self-triggered fire extinguishing module, and a connecting ear 21 is integrally disposed on the placement block 20, and a foolproof hole 22 is disposed on the connecting ear 21. The upper housing 3 includes an upper outer shell 30, and an installation hole 31 is disposed on the upper outer shell 30. The threaded rod 13, together with the foolproof hole 22 and the installation hole 31, is used to lock the lower housing 1, the placement module 2, and the upper housing 3.
[0024] The lower outer shell 10 is provided with a lower groove 15, and the upper outer shell 30 is provided with an upper groove 32. Rubber blocks 16 are provided inside the upper groove 32 and the lower groove 15. By providing the lower groove 15 in the lower outer shell 10 and the upper groove 32 in the upper outer shell 30, and embedding the rubber blocks 16 in the groove formed by the two, a physical sealing barrier is formed. After the rubber blocks 16 are deformed under pressure, they tightly fill the shell joints, effectively blocking the penetration of external liquid water, improving the protection level of the module in humid or splashing environments, and extending the service life of the device.
[0025] The lower outer shell 10 is provided with a lower slot 17, and the upper outer shell 30 is provided with an upper slot 33. The upper slot 33 and the lower slot 17 are provided with a storage frame 18 containing waterproof material. The storage frame 18 is contained in a sealed chamber formed by the lower slot 17 and the upper slot 33. The built-in waterproof material actively absorbs the trace amount of water vapor that penetrates into the shell gaps, providing secondary protection against water molecule penetration in high humidity environments. This complements the rubber seal and avoids corrosion of internal components of the fire extinguishing module or failure of the heat-sensitive wire due to long-term moisture.
[0026] The waterproof material is a water-absorbing resin. The waterproof material is limited to water-absorbing resin. Its super water absorption performance quickly locks in the intruding moisture and gels it to prevent secondary release of moisture. At the same time, the high insulation of the water-absorbing resin avoids the risk of electrical short circuits caused by water absorption, thus taking into account both waterproof safety and compatibility with electrical equipment.
[0027] The storage frame 18 is provided with holes 180, and the holes 180 are used for moisture to enter the interior of the storage frame 18. The holes 180 in the storage frame 18 allow water vapor in the environment to enter the frame in a directional manner and be captured by the water-absorbing resin. At the same time, the size of the holes 180 controls the amount of liquid water that flows directly in, which ensures the moisture absorption efficiency and avoids a large amount of liquid water from impacting the core fire extinguishing module, thus maintaining the dry balance inside the storage frame 18.
[0028] The threaded rod 13 is threaded with a bolt 14, and the outer diameter of the bolt 14 is larger than the diameter of the mounting hole 31. The design of the outer diameter of the bolt 14 being larger than the mounting hole 31 forms a mechanical limit, ensuring that the head of the bolt 14 completely covers the edge of the mounting hole 31 when locked, eliminating the water seepage path at the bolt 14 hole, and at the same time providing pre-tightening force to tightly press the upper and lower shells together with the rubber block 16, enhancing the overall sealing reliability, especially preventing the seal from loosening and failing in a vibration environment.
[0029] A gasket 19 is fitted on the threaded rod 13, and the gasket 19 is located below the bolt 14. Adding a gasket 19 below the bolt 14 disperses the local pressure during tightening to a larger area, preventing the housing from deforming or cracking due to the pressure of the bolt 14, ensuring the integrity of the sealing surface during long-term use, and avoiding pressure damage that could lead to failure of the waterproof structure.
[0030] Working Principle: When using this waterproof, self-triggered fire extinguishing module, multiple sealing and waterproofing mechanisms work together with a temperature-sensing triggering mechanism to ensure reliable operation in harsh environments. First, the lower housing 1 and the upper housing 3 are locked together by threaded rods 13 and bolts 14. Bolts 14 cover the mounting hole 31 and press the gasket 19, forming the first physical seal. At the same time, the rubber blocks 16 embedded in the lower groove 15 and the upper groove 32 are compressed and deformed to fill the housing joints, forming the second flexible sealing barrier, effectively preventing the intrusion of external liquid water. Secondly, a small amount of water vapor that seeps in... It enters through the holes 180 on the storage frame 18 in the combined chamber via the lower slot 17 and the upper slot 33. It is efficiently absorbed and gelled by the water-absorbing resin inside, keeping the interior dry. When an abnormal high temperature or electric arc occurs in the electrical cabinet, the self-triggered fire extinguishing module placed on the placement block 20 senses the temperature change and automatically triggers the release of highly insulating nano-microcapsule fire extinguishing agent to block the combustion conditions and extinguish the fire. Throughout the process, the reliable waterproof structure protects the core fire extinguishing module from moisture corrosion or short circuit failure, significantly extending its service life under harsh working conditions such as humidity and dust.
[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A waterproof, self-triggered fire extinguishing module device, characterized in that: The device includes a lower housing (1), a placement module (2), and an upper housing (3). The lower housing (1) includes a lower outer shell (10), and the lower outer shell (10) has a cavity (11) inside. The placement module (2) is located in the cavity (11). A connecting post (12) is located in the cavity (11), and a threaded rod (13) is located on the connecting post (12). The placement module (2) includes a placement block (20) for placing a self-triggered fire extinguishing module. A connecting ear (21) is integrally provided on the placement block (20), and a foolproof hole (22) is provided on the connecting ear (21). The upper housing (3) includes an upper outer shell (30), and an installation hole (31) is provided on the upper outer shell (30). The threaded rod (13) works with the foolproof hole (22) and the installation hole (31) to lock the lower housing (1), the placement module (2), and the upper housing (3).
2. The waterproof, self-triggered fire extinguishing module device according to claim 1, characterized in that: The lower outer shell (10) is provided with a lower groove (15), and the upper outer shell (30) is provided with an upper groove (32). Rubber blocks (16) are provided inside the upper groove (32) and the lower groove (15).
3. The waterproof, self-triggered fire extinguishing module device according to claim 1, characterized in that: The lower outer shell (10) is provided with a lower groove (17), the upper outer shell (30) is provided with an upper groove (33), and the upper groove (33) and the lower groove (17) are provided with a storage frame (18) containing waterproof material.
4. The waterproof, self-triggered fire extinguishing module device according to claim 3, characterized in that: The waterproof material is a water-absorbing resin.
5. The waterproof, self-triggered fire extinguishing module device according to claim 3, characterized in that: The storage frame (18) is provided with holes (180), and the holes (180) are used for water to enter the interior of the storage frame (18).
6. The waterproof, self-triggered fire extinguishing module device according to claim 1, characterized in that: The threaded rod (13) is threaded with a bolt (14), and the outer diameter of the bolt (14) is larger than the diameter of the mounting hole (31).
7. The waterproof, self-triggered fire extinguishing module device according to claim 6, characterized in that: A washer (19) is fitted on the threaded rod (13), and the washer (19) is located below the bolt (14).