Electrical cabinet with fire extinguishing device

Abstract

The electrical cabinet with the fire extinguishing device comprises a cabinet body, an electric control board and an electrical element, a fire-fighting liquid box for storing fire-fighting liquid is installed at the bottom of the cabinet body, an inlet groove facilitating falling of the electric control board and the electrical element is formed in the top end of the fire-fighting liquid box, and the left side and the right side of the cabinet body are both connected with guide rail plates; the top of the cabinet body is fixedly provided with a protective shell, the protective shell is internally provided with a third electric cylinder, the tail end of the third electric cylinder is connected with a connecting plate, the connecting plate is slidably connected to the top of the cabinet body, the bottom of the connecting plate is fixedly provided with a supporting rod, and the front end of the supporting rod is connected with the electric control plate in an inserted mode. A smoke detection sensor is installed on the inner top of the cabinet body, the smoke detection sensor is connected with a PWM controller through a wire, and the PWM controller is connected with the first electric cylinder, the second electric cylinder and the third electric cylinder through wires. According to the invention, the purposes of automatically detecting the fire condition and automatically extinguishing fire are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinets, and in particular to an electrical cabinet with a fire extinguishing device. Background Art

[0002] An electrical cabinet is a cabinet made of steel materials to protect components from working properly. The materials for making electrical cabinets are generally divided into two types: hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are relatively softer in material and more suitable for making electrical cabinets. Electrical cabinets are widely used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc.

[0003] In the prior art, existing electrical cabinets are generally independent metal cabinets, and respective components are arranged inside. Then, leakage protectors in the components are used to protect the components. However, it can only cut off the power in time and cannot effectively extinguish the open fire that has already ignited. Its protection effect on the components inside the electrical cabinet is poor, and the use effect is poor. Summary of the Invention

[0004] The present invention aims to provide an electrical cabinet with a fire extinguishing device to overcome or at least partially solve the above problems.

[0005] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0006] The present invention provides an electrical cabinet with a fire extinguishing device, including a cabinet body, an electric control board, and electrical components. The electrical components are installed on the electric control board, and the electric control board is arranged inside the cabinet body. A fire liquid tank for storing fire liquid is installed at the bottom of the cabinet body. An inlet groove for facilitating the electric control board and electrical components to fall is opened at the top end of the fire liquid tank. Guide rail plates are connected to both the left and right sides of the cabinet body, and the guide rail plates are sleeved on the left and right parts of the electric control board. The electric control board moves up and down along the guide rail plates. A protective shell is fixedly installed at the top of the cabinet body, and a rain shield is installed on the top of the protective shell. An air duct is formed between the rain shield and the top of the cabinet body. A third electric cylinder is installed inside the protective shell. The tail end of the third electric cylinder is connected to a connecting plate. The connecting plate is slidably connected to the top of the cabinet body, and a support rod is fixedly installed at the bottom of the connecting plate. The front end of the support rod is inserted into the electric control board. A smoke detection sensor is installed at the inner top of the cabinet body, and the smoke detection sensor is connected to a PWM controller through a wire. The PWM controller is connected to a first electric cylinder, a second electric cylinder, and a third electric cylinder through wires.

[0007] As a further solution of the present invention, a baffle is inserted into the top end of the fire liquid tank. A first electric cylinder is arranged on the lower side of the baffle. The first electric cylinder is embedded and fixed on the front side and the rear side of the fire liquid tank, and the outer end of the first electric cylinder is fixedly connected with the baffle through a telescopic rod. The baffle is located on the lower side of the inlet groove.

[0008] As a further solution of the present invention, a sealing shell is installed on the back of the fire liquid tank, and a storage battery is arranged inside the sealing shell. The storage battery is connected to a PWM controller through a wire. The PWM controller is installed inside the sealing shell. The PWM controller is respectively connected to a smoke detection sensor, a first electric cylinder, a second electric cylinder and a third electric cylinder. The front end of the sealing shell is communicated with the fire liquid tank through a connecting pipe.

[0009] As a further solution of the present invention, a plurality of first sockets are fixedly connected to the back of the electronic control board. A plurality of second sockets are fixedly connected to the inner rear wall of the cabinet body. An insertion wire is arranged between the first socket and the second socket. The front end of the insertion wire is inserted into the first socket, and the rear end is inserted and connected to the second socket. The plurality of first sockets and the second sockets correspond to electrical components one by one.

[0010] As a further solution of the present invention, a second electric cylinder is fixedly installed on the back of the cabinet body. The telescopic rod at the front end of the second electric cylinder passes through the cabinet body and is connected to a clamping plate. A clamping interface is arranged on the clamping plate. An annular clamping groove is arranged at the front port of the insertion wire. The clamping plate is clamped at the annular clamping groove on the insertion wire through the clamping interface.

[0011] As a further solution of the present invention, two round holes are symmetrically opened on the left and right of the top end of the electronic control board. The front end of the support rod is inserted into the round holes, and a magnetic ring is fixedly installed at the front end of the support rod. The magnetic ring is located on the back of the electronic control board and is magnetically connected to the electronic control board. A sliding groove is also opened at the top end of the cabinet body. The connecting plate slides along the sliding plate.

[0012] As a further solution of the present invention, an opening groove and a positioning hole groove are opened on both the left side and the right side of the cabinet body. The positioning hole grooves are symmetrically arranged at the front side and the rear side of the opening groove. A plurality of nails are also fixed on the guide rail plate. The inner end of the guide rail plate passes through the opening groove and is arranged inside the cabinet body. The nails pass through the positioning hole grooves and extend into the cabinet body. Both the left side and the right side of the electronic control board are arranged inside the guide rail plate and move up and down along the guide rail plate. A clamping spring is also arranged inside the cabinet body. The clamping spring is clamped on the nails.

[0013] As a further solution of the present invention, notch grooves are opened on both the left side and the right side of the electronic control board.

[0014] As a further solution of the present invention, a fan is installed on the lower side of the rain shield. The fan is arranged in the air duct. There is a gap between the upper side of the fan and the inner top end of the rain shield, and there is a gap between the lower side of the fan and the top end of the cabinet body. A ventilation window is installed at the top end of the cabinet body, and the ventilation window is located below the fan.

[0015] The present invention provides an electrical cabinet with a fire extinguishing device, and the beneficial effects are as follows: It realizes the purpose of automatically detecting the fire situation and automatically extinguishing the fire. The operation is simple, the safety and detection accuracy are high, and it is also convenient for disassembly, assembly and maintenance, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the plug-in wire in the present invention.

[0019] Figure 3 It is a structural schematic diagram of the clamping plate in the present invention.

[0020] Figure 4 It is a structural schematic diagram of the fire-fighting liquid tank in the present invention.

[0021] Figure 5 It is a structural schematic diagram of the third electric cylinder in the present invention.

[0022] Figure 6 It is a structural schematic diagram of the connecting plate in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the support rod in the present invention.

[0024] Figure 8 It is a structural schematic diagram of the electronic control board in the present invention.

[0025] Figure 9 It is a structural schematic diagram of the guide rail plate in the present invention.

[0026] Figure 10 It is a structural schematic diagram of the fastening nail in the present invention.

[0027] Figure 11 It is a structural schematic diagram of the snap spring in the present invention.

[0028] Figure 12 This is a schematic structural diagram of the smoke detection sensor in the present invention.

[0029] Figure 13 This is a block diagram of the working principle of the present invention.

[0030] In the figure: 1, fire liquid tank; 2, cabinet body; 3, electronic control board; 4, electrical components; 5, rain shield; 6, air duct; 7, protective shell; 8, guide rail plate; 9, first electric cylinder; 10, clamping plate; 11, second electric cylinder; 12, baffle; 13, inlet groove; 14, storage battery; 15, third electric cylinder; 16, snap ring; 17, smoke detection sensor; 18, fan; 19, PWM controller; 21, sliding groove; 22, ventilation window; 31, round hole; 32, notch groove; 41, first socket; 42, plug wire; 43, second socket; 81, staple; 101, clamping interface; 141, sealing shell; 151, connecting plate; 152, support rod; 153, magnet ring. Detailed implementation manners

[0031] Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0032] Refer to Figures 1-13 , an electric cabinet with a fire extinguishing device provided by an embodiment of the present invention includes a cabinet body 2, an electronic control board 3, and electrical components 4. The electrical components are installed on the electronic control board 3, and the electronic control board is arranged inside the cabinet body 2. A fire liquid tank 1 for storing fire liquid is installed at the bottom of the cabinet body 2. An inlet groove 13 for facilitating the falling of the electronic control board 3 and the electrical components 4 is opened at the top end of the fire liquid tank 1. Guide rail plates 8 are connected to both the left and right sides of the cabinet body 2, and the guide rail plates 8 are sleeved on the left and right parts of the electronic control board 3. The electronic control board 3 moves up and down along the guide rail plates 8. A protective shell 7 is fixedly installed at the top of the cabinet body 2, and a rain shield 5 is installed at the top of the protective shell 7. An air duct 6 is formed between the rain shield 5 and the top of the cabinet body 2. A third electric cylinder 15 is installed inside the protective shell 7. The tail end of the third electric cylinder 15 is connected to a connecting plate 151. The connecting plate 151 is slidably connected to the top of the cabinet body 2, and a support rod 152 is fixedly installed at the bottom of the connecting plate 151. The front end of the support rod 152 is inserted into the electronic control board 3. A smoke detection sensor 17 is installed on the inner top of the cabinet body 2, and the smoke detection sensor 17 is connected to a PWM controller 19 through a wire. The PWM controller 19 is connected to the first electric cylinder 9, the second electric cylinder 11, and the third electric cylinder 15 through wires respectively.

[0033] A baffle plate 12 is inserted at the top of the fire liquid tank 1. A first electric cylinder 9 is arranged on the lower side of the baffle plate 12. The first electric cylinder 9 is embedded and fixed on the front side and the rear side of the fire liquid tank 1. The outer end of the first electric cylinder 9 is fixedly connected with the baffle plate 12 through a telescopic rod. The baffle plate 12 is located below the inlet groove 13.

[0034] A sealing shell 141 is installed on the back surface of the fire liquid tank 1. A storage battery 14 is arranged inside the sealing shell 141. The storage battery 14 is connected with a PWM controller 19 through a wire. The PWM controller 19 is installed inside the sealing shell 141. The PWM controller 19 is respectively connected with a smoke detection sensor 17, the first electric cylinder 9, the second electric cylinder 11 and the third electric cylinder 15. The front end of the sealing shell 141 is communicated with the fire liquid tank 1 through a connecting pipe.

[0035] During the use of the present invention, when the smoke detection sensor 17 detects a fire inside the solid, the first electric cylinder 9 operates to drive the baffle plate 12 to move outwards, so as to open the top of the fire liquid tank 1. Then the second electric cylinder 11 operates and retracts, so as to drive the plug wire 42 to separate from the first socket 41. Subsequently, the third electric cylinder 15 extends to drive the support rod 152 to move backwards, so as to realize the separation of the support rod 152 from the electronic control board 3. Then the electronic control board 3 can move down along the guide rail plate 8 under its own gravity and fall into the fire liquid tank 1 through the inlet groove 13, and the fire liquid tank 1 extinguishes the electrical components 4.

[0036] When the electrical components 4 need to be overhauled, the snap spring 16 can be taken off from the stud 81, and the guide rail plate 8 can be taken off from the cabinet body 2. Then the third electric cylinder 15 retracts to drive the support rod 152 and the electronic control board 3 to move forwards, and the electronic control board 3 and the electrical components 4 can be moved out of the cabinet body 2 forwards, which is convenient for the overhaul personnel to overhaul the electrical components 4.

[0037] By communicating the sealing shell 141 with the fire liquid tank 1, the storage battery 14 can be protected from fire by the fire liquid. Moreover, by arranging the storage battery 14 and the PWM controller 19 independently, the influence of the fire can be effectively avoided. By arranging the first electric cylinder 9, the second electric cylinder 11 and the third electric cylinder 15 outside the cabinet body 2, the influence of external lines on the inside of the cabinet body 2 can be effectively avoided, and the error of the smoke detection sensor 17 when detecting the fire situation inside the cabinet body 2 can be avoided.

[0038] Such as Figures 2-4As shown in the figure, a plurality of first sockets 41 are fixedly connected to the back surface of the electronic control board 3, and a plurality of second sockets 43 are fixedly connected to the inner rear wall of the cabinet body 2. An insertion wire 42 is arranged between the first socket 41 and the second socket 43. The front end of the insertion wire 42 is inserted into the first socket 41, and the rear end is inserted and connected to the second socket 43. The plurality of first sockets 41 and the second sockets 43 correspond to the electrical components 4 one by one. The second socket 43 is connected to an external power supply device through a wire.

[0039] A second electric cylinder 11 is fixedly installed on the back surface of the cabinet body 2. The telescopic rod at the front end of the second electric cylinder 11 passes through the cabinet body 2 and is connected to the clamping plate 10. A clamping interface 101 is provided on the clamping plate 10. An annular clamping groove is provided at the front port of the insertion wire 42. The clamping plate 10 is clamped at the annular clamping groove on the insertion wire 42 through the clamping interface 101.

[0040] When the smoke detection sensor 17 detects a fire inside the solid, the second electric cylinder 11 operates and drives the telescopic rod to retract, thereby driving the clamping plate 10 to move backward, and further driving the insertion wire 42 to separate from the first socket 41, realizing the power-off operation of the electrical components 4 inside the cabinet body 2. At the same time, it also facilitates the free fall of the electronic control board 3 and the electrical components 4 without being affected by the insertion wire 42.

[0041] As Figures 5-11 shown, two circular holes 31 are symmetrically arranged on the left and right at the top end of the electronic control board 3. The front end of the support rod 152 is inserted into the circular holes 31, and a magnet ring 153 is also fixedly installed at the front end of the support rod 152. The magnet ring 153 is located on the back surface of the electronic control board 3 and is magnetically connected to the electronic control board 3. A sliding groove 21 is also provided at the top end of the cabinet body 2. The connecting plate 151 is slidably connected along the sliding plate.

[0042] Open slots and positioning hole slots are provided on both the left and right sides of the cabinet body 2. The positioning hole slots are symmetrically arranged at the front and rear sides of the open slots. A plurality of nails 81 are also fixed on the guide rail plate 8. The inner end of the guide rail plate 8 passes through the open slot and is arranged inside the cabinet body 2. The nails 81 pass through the positioning hole slots and extend into the cabinet body 2. Both the left and right sides of the electronic control board 3 are arranged inside the guide rail plate 8 and move up and down along the guide rail plate 8. A clamping spring 16 is also arranged inside the cabinet body 2. The clamping spring 16 is clamped on the nails 81. Notches 32 are provided on both the left and right sides of the electronic control board 3. The guide rail plate 8 realizes the limit and guiding movement of the electronic control board 3. Moreover, through the combined assembly method, the purpose of convenient disassembly and assembly is also realized. The design of the notch 32 facilitates the clamping spring 16 to be clamped on the rear nails 81, thereby clamping the guide rail plate 8 and the cabinet body 2 together.

[0043] When the smoke detection sensor 17 detects a fire inside the solid, the third electric cylinder 15 operates and drives the telescopic rod to extend, thereby driving the connecting plate 151 and the support rod 152 to move backward. At this time, the electronic control board 3 is limited by the guide rail plate 8, realizing that the electronic control board 3 does not move, and the support rod 152 is separated from the electronic control board 3. Then, the electronic control board 3 and the electrical components 4 move downward along the guide rail plate 8 under their own gravity and fall into the fire extinguishing liquid tank 1 filled with fire extinguishing liquid through the inlet groove 13, realizing the immersion fire extinguishing of the electrical components 4 on the electronic control board 3 by the fire extinguishing liquid.

[0044] As Figure 12 shown, a fan 18 is installed on the lower side of the rain shield 5. The fan 18 is arranged in the air duct 6. There is a gap between the upper side of the fan 18 and the inner top end of the rain shield 5, and there is a gap between the lower side of the fan 18 and the top end of the cabinet body 2. A ventilation window 22 is installed at the top end of the cabinet body 2, and the ventilation window 22 is located below the fan 18. The operation of the fan 18 can drive the air flow, and then the air flows and enters the cabinet body 2 through the ventilation window 22, which can dissipate heat from the electrical components 4 in the cabinet body 2.

[0045] The above are only the embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An electrical cabinet with a fire extinguishing device, comprising a cabinet body (2), an electric control panel (3) and electrical components (4), wherein the electrical components are mounted on the electric control panel (3), and the electric control panel is arranged inside the cabinet body (2), characterized in that: A fire-fighting liquid tank (1) for storing fire-fighting liquid is installed at the bottom of the cabinet (2), and an inlet groove (13) is provided at the top of the fire-fighting liquid tank (1) for facilitating the falling of the electric control board (3) and the electrical components (4). The left and right sides of the cabinet (2) are connected with guide rails (8), and the guide rails (8) are sleeved on the left and right parts of the electric control board (3). The electric control board (3) moves up and down along the guide rails (8). A protective shell (7) is fixedly installed on the top of the cabinet (2), and a rain shield (5) is installed on the top of the protective shell (7). An air duct (6) is formed between the rain shield (5) and the top of the cabinet (2). The inner surface of the protective shell (7) is provided with a protective cover (7). A third electric cylinder (15) is installed at the top of the cabinet (2), the tail end of the third electric cylinder (15) is connected to a connecting plate (151), the connecting plate (151) is slidably connected to the top of the cabinet (2), and a support rod (152) is fixedly installed at the bottom of the connecting plate (151), the front end of the support rod (152) is plugged into the electric control board (3), a smoke detection sensor (17) is installed at the inner top of the cabinet (2), and the smoke detection sensor (17) is connected to a PWM controller (19) through a wire, and the PWM controller (19) is respectively connected to the first electric cylinder (9), the second electric cylinder (11) and the third electric cylinder (15) through a wire.

2. The electrical cabinet with a fire extinguishing device according to claim 1, characterized in that: A baffle (12) is inserted at the top end of the fire-fighting liquid tank (1), and a first electric cylinder (9) is arranged at the lower side of the baffle (12). The first electric cylinder (9) is embedded and fixed at the front and rear sides of the fire-fighting liquid tank (1), and the outer end of the first electric cylinder (9) is fixedly connected to the baffle (12) via a telescopic rod. The baffle (12) is located at the lower side of the inlet groove (13).

3. The electrical cabinet with a fire extinguishing device according to claim 2, characterized in that: A sealed shell (141) is installed on the back of the fire-fighting liquid tank (1), and a storage battery (14) is arranged inside the sealed shell (141). The storage battery (14) is connected to a PWM controller (19) via a wire. The PWM controller (19) is installed in the sealed shell (141). The PWM controller (19) is respectively connected to a smoke detection sensor (17), a first electric cylinder (9), a second electric cylinder (11), and a third electric cylinder (15). The front end of the sealed shell (141) is connected to the fire-fighting liquid tank (1) via a connecting pipe.

4. The electrical cabinet with a fire extinguishing device according to claim 1, characterized in that: A plurality of first sockets (41) are fixedly connected to the back of the electric control panel (3), a plurality of second sockets (43) are fixedly connected to the inner rear wall of the cabinet (2), a plug wire (42) is arranged between the first sockets (41) and the second sockets (43), a front end of the plug wire (42) is plugged into the first socket (41), and a rear end is plugged into the second socket (43), and the plurality of first sockets (41) and second sockets (43) correspond to the electrical components (4) one by one.

5. The electrical cabinet with a fire extinguishing device according to claim 4, characterized in that: A second electric cylinder (11) is fixedly mounted on the back of the cabinet (2); a telescopic rod at the front end of the second electric cylinder (11) passes through the cabinet (2) and is connected to a card plate (10); a card interface (101) is provided on the card plate (10); a front end of the plug wire (42) is provided with an annular card slot; the card plate (10) is card-connected to the annular card slot on the plug wire (42) via the card interface (101).

6. The electrical cabinet with a fire extinguishing device according to claim 1, characterized in that: The top of the electric control panel (3) is provided with two circular holes (31) symmetrically on the left and right sides, the front end of the support rod (152) is plugged into the circular hole (31), and the front end of the support rod (152) is also fixedly mounted with a magnet ring (153), the magnet ring (153) is located on the back of the electric control panel (3) and is magnetically connected to the electric control panel (3), the top of the cabinet (2) is also provided with a sliding groove (21), and the connecting plate (151) is slidably connected along the sliding plate.

7. The electrical cabinet with a fire extinguishing device according to claim 6, characterized in that: The cabinet (2) is provided with an opening slot and a positioning hole slot on the left and right sides, and the positioning hole slots are symmetrically arranged at the front and rear sides of the opening slot. A plurality of clamping pins (81) are also fixed on the guide rail plate (8). The inner end of the guide rail plate (8) passes through the opening slot and is arranged in the cabinet (2). The clamping pins (81) pass through the positioning hole slot and extend into the cabinet (2). The left and right sides of the electric control board (3) are arranged in the guide rail plate (8) and move up and down along the guide rail plate (8). A clamping spring (16) is also arranged inside the cabinet (2), and the clamping spring (16) is clamped on the clamping pins (81).

8. The electrical cabinet with a fire extinguishing device according to claim 7, characterized in that: The left side and the right side of the electric control panel (3) are both provided with notch grooves (32).

9. The electrical cabinet with a fire extinguishing device according to claim 1, characterized in that: A fan (18) is installed on the lower side of the rain shield (5), and the fan (18) is arranged in the air duct (6). A gap is left between the upper side of the fan (18) and the top of the inner part of the rain shield (5), and a gap is left between the lower side of the fan (18) and the top of the cabinet (2). A ventilation window (22) is installed on the top of the cabinet (2), and the ventilation window (22) is located below the fan (18).

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