Automatic fire extinguishing device in control box
An automatic fire extinguishing device, which combines infrared sensors and motion components, enables precise fire suppression within the control box, overcoming the shortcomings of traditional fire extinguishing systems and improving fire extinguishing efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SHIKANG ELECTRIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing control box fire suppression systems cannot extinguish fires independently, have low fire suppression accuracy, and pose safety hazards.
Infrared sensors are used to locate the fire source. The fire extinguishing components are moved by horizontal and vertical motion components. The mechanical claws hold the cable and the fire extinguishing pads physically cover the fire source to isolate oxygen and extinguish the open flame.
It enables precise location of the fire and rapid fire suppression, reduces the risk of corrosion to precision components inside the control cabinet, and improves fire suppression efficiency and safety.
Smart Images

Figure CN224113147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of fire extinguishing devices inside control boxes, and in particular to an automatic fire extinguishing device inside a control box. Background Technology
[0002] With the improvement of industrial automation, control boxes, as the core units of power systems, communication equipment, and industrial control, integrate a large number of precision electronic components and cable lines. However, during long-term operation, control boxes are prone to fires due to circuit overload, cable aging, or poor contact. If such fires are not extinguished in time, they will spread rapidly and cause equipment damage, production interruption, or even safety accidents. Therefore, fire extinguishing devices are usually installed in the room.
[0003] Currently, control boxes in the domestic and international markets are located inside rooms with fire extinguishing systems. In the event of a fire, all the cabinets in the room stop working, making it difficult to resolve individual cabinet malfunctions. Furthermore, traditional fire extinguishing systems typically use fixed nozzles or temperature-triggered devices, lacking active fire source location capabilities. Fixed nozzles have limited coverage and cannot accurately target the fire source, resulting in delayed fire suppression and significant safety hazards. Utility Model Content
[0004] Therefore, it is necessary to provide an automatic fire extinguishing device inside the control box to address the above-mentioned technical problems, which can extinguish fires independently inside the control cabinet and accurately locate the fire point.
[0005] To solve the above-mentioned technical problems, this utility model solves the problems of fire extinguishing systems being unable to extinguish fires independently and having low fire extinguishing accuracy through the following technical solution.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An automatic fire extinguishing device inside a control box, comprising:
[0008] The control cabinet body is equipped with an infrared sensor inside the control cabinet body;
[0009] A fire extinguishing assembly, wherein the fire extinguishing assembly is disposed inside the control cabinet body for fire extinguishing;
[0010] A lateral movement component is disposed on one side of the fire extinguishing component to drive the fire extinguishing component to move;
[0011] A longitudinal motion component is disposed inside the control cabinet body to drive the lateral motion component to move.
[0012] As a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, the fire extinguishing component includes a connecting plate, and a support plate is connected to the top and bottom of the connecting plate. Two fixing rods are connected between the two support plates. A sleeve is sleeved in the middle of the fixing rod. A mechanical claw is connected to one end of the sleeve, and a fire extinguishing pad is connected to one side of the mechanical claw.
[0013] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, a mover is installed in the middle of the connecting plate. The mover is specifically a miniature electric telescopic rod. The output end of the mover is connected to four rotating parts, and the four rotating parts are respectively connected to one side of two mechanical claws.
[0014] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, the lateral movement component includes a connecting rod, a reciprocating threaded rod rotatably connected to the middle of the connecting rod, a locking block slidably connected to the back of the connecting rod, a threaded hole being opened in the middle of the locking block, the outer wall of the reciprocating threaded rod being threadedly connected to the inner wall of the threaded hole, and the bottom end of the infrared sensor being connected to the top end of the connecting rod.
[0015] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, sliders are connected to both sides of the connecting rod, one of the sliders has a threaded through hole at its top, and the other slider has a placement groove on one side.
[0016] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, a driving component is installed inside the placement slot, and the output end of the driving component passes through one side of the connecting rod and is connected to one end of the reciprocating threaded rod.
[0017] As a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, the longitudinal motion component includes two slide rails, which are respectively installed on both sides inside the control cabinet body.
[0018] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, the slider is slidably connected to the slide rail, and one of the slide rails is provided with a reciprocating threaded column inside, which is installed inside the control cabinet body.
[0019] In a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, a driver is provided at the top of the reciprocating threaded column. The driver is installed at the top of the control cabinet body. The output end of the driver passes through the top of the control cabinet body and is connected to the top of the reciprocating threaded column. The outer wall of the reciprocating threaded column is threaded to the inner wall of the threaded through hole.
[0020] As a preferred embodiment of the automatic fire extinguishing device in the control box provided by this utility model, the fire extinguishing device further includes an external controller, which can receive signals from infrared sensors and control the operation of the driving components and the driver.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] This utility model provides an automatic fire extinguishing device for control cabinets. It uses an infrared sensor to detect the fire point, locates the fire, and moves the fire extinguishing components to the fire source. A mechanical gripper clamps the cable, and a fire extinguishing pad physically covers the fire source, isolating oxygen and extinguishing the open flame. The fire extinguishing process relies solely on physical isolation, avoiding corrosion of precision components inside the control cabinet by chemical extinguishing agents, reducing equipment damage rates. When a fire breaks out inside the control cabinet, it quickly extinguishes the fire, resolving the problem of independent cabinet malfunctions and making it safer to use.
[0023] This utility model provides an automatic fire extinguishing device inside a control box. It uses an infrared sensor to detect the fire extinguishing point, calculates the path through an external controller, and controls the operation of the drive components and driver to quickly move the fire extinguishing components to the fire position, accurately locate the fire point, improve fire extinguishing efficiency, and achieve more efficient automated fire extinguishing. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A schematic diagram of the overall structure of this utility model;
[0026] Figure 2 A schematic diagram of the infrared sensor structure provided by this utility model;
[0027] Figure 3 This is a schematic diagram of the fire extinguishing component structure provided by this utility model;
[0028] Figure 4 A schematic diagram of the lateral movement component structure provided by this utility model;
[0029] Figure 5 A schematic diagram of the longitudinal motion component structure provided by this utility model;
[0030] Figure 6 A schematic diagram of the connecting rod structure provided by this utility model.
[0031] The markings in the diagram are explained as follows:
[0032] 1. Control cabinet body; 2. Infrared sensor; 3. Fire extinguishing assembly; 31. Connecting plate; 32. Support plate; 33. Fixing rod; 34. Sleeve; 35. Mechanical claw; 36. Fire extinguishing pad; 37. Movable device; 38. Rotating component; 4. Lateral movement assembly; 41. Connecting rod; 42. Reciprocating threaded rod; 43. Engaging block; 44. Threaded hole; 45. Slider; 46. Placement slot; 47. Threaded through hole; 48. Drive component; 5. Longitudinal movement assembly; 51. Slide rail; 52. Reciprocating threaded column; 53. Driver. Detailed Implementation
[0033] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention. Example
[0034] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 An automatic fire extinguishing device for a control box includes a control cabinet body 1, a fire extinguishing component 3, a lateral movement component 4, and a longitudinal movement component 5. An infrared sensor 2 is installed inside the control cabinet body 1. The fire extinguishing component 3 is located inside the control cabinet body 1 for fire extinguishing. The fire extinguishing component 3 includes a connecting plate 31, with support plates 32 connected to both the top and bottom ends of the connecting plate 31. Two fixed rods 33 are connected between the two support plates 32. A sleeve 34 is fitted in the middle of each fixed rod 33, and a mechanical claw 35 is connected to one end of the sleeve 34. A fire extinguishing pad 36 is connected to one side of each mechanical claw 35. A mover 37 is installed in the middle of the connecting plate 31. The mover 37 is specifically a miniature electric telescopic rod, and four rotating parts 38 are connected to the output end of the mover 37. Each of the four rotating parts 38 is connected to one side of one of the two mechanical claws 35. The mechanical claws 35 are made of high-temperature resistant alloy, and the fire extinguishing pad 36 is made of ceramic fiber. The mechanical claws 35 are opened and closed by the rotating parts 38.
[0035] Through the above structural design, when the cable inside the control cabinet catches fire, the infrared sensor 2 triggers an alarm signal, locates the coordinates of the fire source, and the external controller controls the movement of the drive component 48 and the driver 53 to move the fire extinguishing component 3 to the corresponding fire point. Then, the external controller controls the retractor 37, and the end of the rotating component 38 connected to the mover 37 moves towards the mover 37, while the other end retracts towards the connecting plate 31, causing the mechanical claw 35 to close and clamp the burning cable. Similarly, the mover 37 extends to push the mechanical claw 35 open, thereby moving the fire extinguishing pad 36 to repeatedly strike the fire point, physically covering the fire source and isolating oxygen to extinguish the open flame. After extinguishing the fire, the mechanical claw 35 opens. The fire extinguishing pad 36 and the mechanical claw 35 are magnetically connected to facilitate replacement of the fire extinguishing pad 36 if it is damaged.
[0036] Preferably, the lateral movement component 4 is disposed on one side of the fire extinguishing component 3 to drive the fire extinguishing component 3 to move; the lateral movement component 4 includes a connecting rod 41, a reciprocating threaded rod 42 rotatably connected to the middle of the connecting rod 41, a locking block 43 slidably connected to the back of the connecting rod 41, a threaded hole 44 opened in the middle of the locking block 43, the outer wall of the reciprocating threaded rod 42 is threadedly connected to the inner wall of the threaded hole 44, and the bottom end of the infrared sensor 2 is connected to the top end of the connecting rod 41. Slider blocks 45 are connected to both sides of the connecting rod 41, one slider 45 has a threaded through hole 47 at its top end, and the other slider 45 has a placement groove 46 on one side. A driving component 48 is installed inside the placement groove 46, and the output end of the driving component 48 passes through one side of the connecting rod 41 and is drively connected to one end of the reciprocating threaded rod 42. The longitudinal motion component 5 is disposed inside the control cabinet body 1 to drive the lateral motion component 4. The longitudinal motion component 5 includes two slide rails 51, which are respectively installed on both sides inside the control cabinet body 1. The slider 45 is slidably connected to the slide rails 51. One of the slide rails 51 has a reciprocating threaded post 52 inside, which is installed inside the control cabinet body 1. The top of the reciprocating threaded post 52 is provided with a driver 53, which is installed at the top of the control cabinet body 1. The output end of the driver 53 passes through the top of the control cabinet body 1 and is connected to the top of the reciprocating threaded post 52. The outer wall of the reciprocating threaded post 52 is threadedly connected to the inner wall of the threaded through hole 47. The fire extinguishing device also includes an external controller, which can receive signals from the infrared sensor 2 and control the operation of the drive component 48 and the driver 53.
[0037] Through the above structural design, the infrared sensor 2 scans the inside of the control cabinet, generates a temperature distribution heat map, identifies the fire source, and the external controller calculates the movement paths of the horizontal movement component 4 and the vertical movement component 5 according to the coordinates of the fire source. The drive component 48 and the driver 53 work together. The output end of the drive component 48 rotates to drive the reciprocating threaded rod 42 to move, which in turn drives the locking block 43 to move. The output end of the driver 53 rotates to drive the reciprocating threaded column 52 to rotate, which in turn drives the slider 45 to move, thus moving the fire extinguishing component 3 to the target position to extinguish the fire.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.
Claims
1. An automatic fire extinguishing device inside a control box, comprising a control cabinet body (1), characterized in that: An infrared sensor (2) is installed inside the control cabinet body (1); Fire extinguishing assembly (3), which is disposed inside the control cabinet body (1) for fire extinguishing; Lateral movement component (4), which is disposed on one side of the fire extinguishing component (3) for moving the fire extinguishing component (3); The longitudinal motion component (5) is disposed inside the control cabinet body (1) to drive the lateral motion component (4) to move.
2. A control box for automatic fire extinguishing apparatus according to claim 1, wherein The fire extinguishing assembly (3) includes a connecting plate (31), with a support plate (32) connected to both the top and bottom of the connecting plate (31). Two fixing rods (33) are connected between the two support plates (32). A sleeve (34) is fitted in the middle of the fixing rod (33). A mechanical claw (35) is connected to one end of the sleeve (34), and a fire extinguishing pad (36) is connected to one side of the mechanical claw (35).
3. A control box for automatic fire extinguishing apparatus according to claim 2, wherein A mover (37) is installed in the middle of the connecting plate (31). The mover (37) is specifically a miniature electric telescopic rod. The output end of the mover (37) is connected to four rotating parts (38). The four rotating parts (38) are respectively connected to one side of two mechanical claws (35).
4. The automatic fire extinguishing apparatus in a control box according to claim 1, wherein The lateral movement component (4) includes a connecting rod (41), a reciprocating threaded rod (42) is rotatably connected to the middle of the connecting rod (41), a locking block (43) is slidably connected to the back of the connecting rod (41), a threaded hole (44) is opened in the middle of the locking block (43), the outer wall of the reciprocating threaded rod (42) is threadedly connected to the inner wall of the threaded hole (44), and the bottom end of the infrared sensor (2) is connected to the top end of the connecting rod (41).
5. A control box for automatic fire extinguishing apparatus according to claim 4, wherein Both sides of the connecting rod (41) are connected to sliders (45), one of the sliders (45) has a threaded through hole (47) at the top, and the other slider (45) has a placement groove (46) on one side.
6. A control box for automatic fire extinguishing apparatus according to claim 5, wherein The placement slot (46) is equipped with a drive unit (48), the output end of which passes through one side of the connecting rod (41) and is connected to one end of the reciprocating threaded rod (42) for transmission.
7. An automatic fire extinguishing apparatus in a control box according to claim 5, wherein The longitudinal motion component (5) includes two slide rails (51), which are respectively installed on both sides inside the control cabinet body (1).
8. An automatic fire extinguishing apparatus in a control box according to claim 7, wherein The slider (45) is slidably connected to the slide rail (51), and one of the slide rails (51) is provided with a reciprocating threaded column (52) inside, which is installed inside the control cabinet body (1).
9. An automatic fire extinguishing apparatus in a control box according to claim 8, wherein The top of the reciprocating threaded column (52) is provided with a driver (53), which is installed on the top of the control cabinet body (1). The output end of the driver (53) passes through the top of the control cabinet body (1) and is connected to the top of the reciprocating threaded column (52). The outer wall of the reciprocating threaded column (52) is threaded to the inner wall of the threaded through hole (47).
10. A control box for automatic fire extinguishing apparatus according to claim 9, wherein The fire extinguishing device further comprises an external controller which can receive the signal of the infrared sensor (2) and control the operation of the driving member (48) and the driver (53).