Intelligent monitoring type high-low voltage power distribution cabinet and use method thereof

Abstract

The invention relates to the field of high-low voltage power distribution cabinets, and discloses an intelligent monitoring type high-low voltage power distribution cabinet which comprises a power distribution cabinet body, an inner shell installed in the power distribution cabinet body, a low-voltage electrical element located below the inner shell and a high-voltage electrical element located in the inner shell, and a protection component is arranged in the power distribution cabinet body. The protection component comprises a disconnecting assembly and a fire extinguishing assembly, the disconnecting assembly comprises a first gas tank, a cylinder and a first connecting valve set arranged between the first gas tank and the cylinder, a camera is installed in the inner shell, the cylinder is vertically arranged, the output end of the cylinder is connected with the low-voltage electrical element, and the first connecting valve set is opened when a fire breaks out, so that the cylinder is communicated with the first gas tank; the fire extinguishing assembly comprises a second gas tank and a fire extinguishing box located above the high-voltage electrical element, the second gas tank and the fire extinguishing box are connected through a second connecting valve set, and the second connecting valve set is used for being opened when a fire breaks out, so that the second gas tank is communicated with the fire extinguishing box.

Description

Technical Field

[0001] The present invention relates to the technical field of high and low voltage power distribution cabinets, and in particular to an intelligent monitoring type high and low voltage power distribution cabinet and a use method thereof. Background Art

[0002] High and low voltage distribution cabinets are distribution equipment used for electric energy distribution, control, metering and cable connection in electric power supply systems. During use, although related circuits and electronic components can be protected by circuit breakers, fuses, etc., in actual use, the distribution cabinets may easily catch fire due to external factors or excessive heat accumulation due to poor heat dissipation capacity, etc., which exceeds the protection capacity of circuit breakers and fuses. Therefore, the present invention proposes an intelligent monitoring high and low voltage distribution cabinet and a method of using the same, which can achieve efficient fire extinguishing protection for the distribution cabinet. Summary of the invention

[0003] In order to solve the problems mentioned in the above background, the present invention provides an intelligent monitoring type high and low voltage distribution cabinet and a method of using the same.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows.

[0005] An intelligent monitoring type high and low voltage power distribution cabinet comprises a power distribution cabinet body, an inner shell and electrical components are installed in the power distribution cabinet body, and the electrical components comprise low voltage electrical components located below the inner shell body and high voltage electrical components located inside the inner shell body; A protection component is provided in the power distribution cabinet, and the protection component includes a disconnection component and a fire extinguishing component. The disconnection component includes a gas tank 1, a cylinder and a connecting valve group 1 arranged therebetween. A camera is installed in the inner shell. The cylinder is arranged vertically and the output end is connected to a low-voltage electrical component. The gas tank 1 is filled with compressed gas medium. The connecting valve group 1 is used to be opened in case of fire to connect the cylinder with the gas tank 1. The fire extinguishing assembly includes a gas tank 2 and a fire extinguishing box located above the high-voltage electrical components. The gas tank 2 is filled with compressed gas medium, and the fire extinguishing box stores insulating fire extinguishing medium. The gas tank 2 and the fire extinguishing box are connected by a connecting valve group 2. The connecting valve group 2 is used to be opened when a fire occurs to connect the gas tank 2 with the fire extinguishing box.

[0006] Furthermore, the connecting valve group 1 includes a connecting pipe 2 connected to the gas tank 1 and a connecting pipe 1 connected to the cylinder, and a solenoid valve and a trigger valve are arranged in parallel between the connecting pipe 1 and the connecting pipe 2.

[0007] Furthermore, the trigger valve includes a valve housing, an outer circumferential surface of the valve housing extends with an upper nozzle and a lower nozzle located in the same straight line, the upper nozzle is connected to connecting pipe 2, and the lower nozzle is connected to connecting pipe 1, a valve core is sleeved inside the valve housing, an annular groove is provided on the outer circumferential surface of the valve core, a valve stem extends from the end of the valve core, the end of the valve stem extends out of the valve housing, a spring 2 is sleeved outside the valve stem and is located between the valve core and the end of the valve housing, the end of the valve stem is connected to a side of the inner housing away from the connecting valve group 1 by a connecting line, and initially, the spring 2 is in a compressed state and the annular groove and the upper nozzle are not connected to each other.

[0008] Furthermore, the structure of connecting valve group two is consistent with the structure of connecting valve group one, and the connection relationship between connecting valve group two, gas tank two and the fire extinguisher box is consistent with the connection relationship between connecting valve group one, gas tank one and the gas cylinder.

[0009] Furthermore, a nozzle is connected to the bottom of the fire extinguisher box through a one-way valve, a nozzle is arranged on the outer cylindrical surface of the nozzle facing downward, and a plurality of nozzles are arranged in an array along the axial direction of the nozzle. The one-way valve is used to make the insulating fire extinguishing medium in the fire extinguisher box flow toward the nozzle in one direction. Initially, the gravity of the insulating fire extinguishing medium in the fire extinguisher box is not sufficient to open the one-way valve.

[0010] Furthermore, the connecting valve group 1 and the connecting valve group 2 share a connecting line.

[0011] Furthermore, a connection port is provided at the bottom of the inner shell, a fan is installed in the shell of the low-voltage electrical component, a notch is provided on the upper end surface of the shell of the low-voltage electrical component, a convex tube extends from the upper opening of the notch, and the convex tube is located directly below the connection port; Two deflection plates are hingedly installed in the inner shell and the hinges of the two deflection plates are respectively located on both sides of the connecting port. Initially, the convex tube is inserted into the connecting port and the upper end of the convex tube contacts the deflection plate, and the output end of the fan is connected to the notch. When the convex tube leaves the connecting port, the deflection plate deflects downward under the action of gravity. When the deflection plate is arranged horizontally, the bottom of the deflection plate contacts the lower cavity wall of the inner shell, and the facing ends of the two deflection plates contact.

[0012] Furthermore, the low-voltage electrical component and the high-voltage electrical component are electrically connected via a connecting member, and the connecting member includes an upper connecting component and a lower connecting component; The upper connection assembly includes a mounting opening arranged at the bottom of the inner shell, a base is arranged in the mounting opening, a plurality of groups of upper connection units are arranged in an array along the length direction on the base, the upper connection unit includes a contact hole arranged at the lower end surface of the base, a metal contact piece is coaxially installed in the contact hole, a side hole connected to the contact hole is arranged on the side of the base, a wire 1 is connected to the outer cylindrical surface of the metal contact piece, and the end of the wire 1 passes through the side hole and is connected to the high-voltage electrical component; The lower connection assembly includes a lower connection unit located directly below the upper connection unit, the lower connection unit includes a conductor 2 and an insulating sleeve column coaxially located below the contact hole and hollow inside, one end of the conductor 2 is connected to the low-voltage electrical component, and the other end is provided with a metal contact rod passing through the insulating sleeve column, the conductor 2 is connected to the insulating sleeve column, the outer sleeve of the insulating sleeve column is provided with a partition sleeve, the lower opening of the partition sleeve is provided with an internal step, the upper end of the insulating sleeve column is provided with an external step, the outer cylindrical surface of the insulating sleeve column is provided with an external shoulder located below the partition sleeve, a spring 1 is provided between the external shoulder and the internal step, when the spring 1 is not compressed, the metal contact rod is hidden in the partition sleeve as a whole, and initially, the metal contact rod is inserted into the contact hole.

[0013] A method for using an intelligent monitoring high and low voltage distribution cabinet: Step 1: During normal use, the metal contact rod of the connecting member is inserted into the contact hole and contacts the metal contact sheet to achieve conductive connection between the low-voltage electrical components and the high-voltage electrical components. The power distribution cabinet operates normally. At the same time, the airflow generated by the operation of the fan can flow into the inner shell and be discharged through the air outlet arranged on the side of the inner shell and close to the upper end of the inner shell, thereby achieving heat dissipation and cooling of the high-voltage electrical components in the inner shell; Step 2: When a fire occurs, the camera or the connecting line is triggered, so that the connecting valve group 1 and the connecting valve group 2 are opened at the same time, the gas tank 1 is connected to the gas cylinder, and the gas tank 2 is connected to the fire extinguishing box; The compressed gas medium in the gas tank drives the cylinder to operate, thereby driving the low-voltage electrical component to move downward, the metal contact rod leaves the contact hole and retracts into the separation sleeve, and the low-voltage electrical component is disconnected from the high-voltage electrical component; The compressed gas medium in gas tank 2 flows into the fire extinguishing box, opens the one-way valve, and drives the insulating fire extinguishing medium to spray downward to achieve fire extinguishing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This solution uses cameras and connecting wires to achieve dual monitoring of high-voltage electrical components. When a fire occurs in a high-voltage electrical component, the protective component can be triggered in a timely and reliable manner to achieve fire extinguishing protection for the high-voltage electrical component. On this basis: The connection valve group 1 and the connection valve group 2 share a connection line. When the camera detects a fire first, a signal is sent to open the connection valve group 1 and the connection valve group 2 at the same time. When the connection line is burned by the fire first, the connection valve group 1 and the connection valve group 2 are also opened at the same time. The advantages of connecting valve group 1 and connecting valve group 2 being opened at the same time are: on the one hand, the operation of the cylinder drives the low-voltage electrical components to move downward, so that the power distribution cabinet is powered off and the connection port is closed through the deflection plate; on the other hand, the insulating fire extinguishing medium in the fire extinguishing box is sprayed downward into the inner shell to achieve a fire extinguishing effect. The combination of the two can make most of the insulating fire extinguishing medium located in the inner shell, thereby achieving a better fire extinguishing effect. The fire extinguishing effect includes extinguishing or suppressing the flame in the first time, and subsequently attaching to the surface of the high-voltage electrical components in the inner shell to prevent the flame from expanding; On the contrary, if the connection valve group 1 and the connection valve group 2 are not opened at the same time, not only is it easy for the insulating fire extinguishing medium to leak out through the unsealed connection port, which will affect the fire extinguishing effect of the insulating fire extinguishing medium on the high-voltage electrical components, but also the connecting wire will fall downward after being burned by the flame, and it is easy to become a ignition medium, thereby easily causing the flame to spread to other parts of the high-voltage electrical components; On the other hand, in the present application, connecting valve group 1 and connecting valve group 2 are opened at the same time, which not only allows most of the insulating fire extinguishing medium to be located in the inner shell, thereby improving the fire extinguishing effect, but also the burning connecting wires will be promptly affected by the fire extinguishing effect of the insulating fire extinguishing medium and will not become a fire-conducting medium. Overall, the fire extinguishing effect of the present application is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the interior of the present invention during normal use; Figure 3 It is the internal schematic diagram of the present invention after power failure; Figure 4 is a schematic diagram of connecting components and electrical elements; Figure 5 is a structural schematic diagram of a connecting member; Figure 6 is a cross-sectional view of the inner housing and the fan; Figure 7 is a schematic diagram of a protective member and an inner shell; Figure 8 It is a schematic diagram of the structure of the protection component; Fig. 9 It is a schematic diagram of connecting valve group 1; Fig.10 A schematic diagram of a fire extinguishing assembly.

[0016] The reference numerals in the accompanying drawings are: 100, power distribution cabinet; 101, inner shell; 102, camera; 103, fan; 104, convex pipe; 105, connection port; 106, deflection plate; 200, connection member; 201, base; 202, contact hole; 203, wire 1; 204, insulating sleeve column; 205, separation sleeve; 206, spring 1; 300, protection member; 301, gas tank 1; 302, gas tank 2; 303, Cylinder; 304, connecting valve group 1; 305, fire extinguisher box; 3051, nozzle; 3052, nozzle; 3053, valve pipe; 3054, valve ball; 3055, spring three; 306, connecting valve group 2; 307, connecting pipe 1; 308, connecting pipe 2; 309, solenoid valve; 310, valve housing; 311, valve core; 312, spring 2; 313, ring groove; 314, valve stem; 315, connecting line. DETAILED DESCRIPTION

[0017] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0018] Reference Figure 1-Figure 10 An intelligent monitoring type high and low voltage distribution cabinet includes a distribution cabinet body 100, in which an inner shell body 101 and electrical components are installed. The electrical components include low-voltage electrical components and high-voltage electrical components. This is achievable with the prior art and will not be elaborated on. The former is located below the inner shell body 101, and the latter is located inside the inner shell body 101. Fires in distribution cabinets almost always occur in the latter. Therefore, one of the cores of this solution is to perform intelligent monitoring and efficient fire extinguishing protection on the latter.

[0019] 1. The power distribution cabinet is generally equipped with a heat dissipation structure for heat dissipation and cooling. In this scheme, refer to Figure 6 The heat dissipation structure includes a connection port 105 arranged at the bottom of the inner shell 101 and a fan 103 located below the inner shell 101. In this solution, the fan 103 is placed in the outer shell of the low-voltage electrical component. The upper end surface of the outer shell of the low-voltage electrical component is provided with a notch, and a convex tube 104 extends from the upper opening of the notch. The convex tube 104 is located directly below the connection port 105.

[0020] Two deflection plates 106 are hingedly installed in the inner shell 101, and the hinges of the two deflection plates 106 are respectively located on both sides of the connection port 105. Initially, the convex tube 104 is inserted into the connection port 105 and the upper end of the convex tube 104 contacts the deflection plate 106. At this time, the output end of the fan 103 is vertically facing the convex tube 104, so the airflow generated by the operation of the fan 103 can flow into the inner shell 101 and be discharged through the air outlet arranged on the side of the inner shell 101 and close to the upper end of the inner shell 101. , to achieve heat dissipation and cooling of the high-voltage electrical components in the inner shell 101. When a fire occurs, the low-voltage electrical components are driven to move downward, and the convex tube 104 leaves the connecting port 105. At the same time, under the action of gravity, the deflection plate 106 deflects downward. When the deflection plate 106 is arranged horizontally, the bottom of the deflection plate 106 contacts the lower cavity wall of the inner shell 101, and the facing ends of the two deflection plates 106 contact, so at this time, the connecting port 105 can be closed by the two deflection plates 106.

[0021] 2. The low-voltage electrical component and the high-voltage electrical component are electrically connected via the connecting member 200: Reference Figure 2-Figure 5 , the connecting member 200 includes an upper connecting component and a lower connecting component.

[0022] The upper connection component includes an installation port arranged at the bottom of the inner shell 101, a base 201 is arranged in the installation port, and a plurality of groups of upper connection units are arranged in an array along the length direction on the base 201. Furthermore, the upper connection unit includes a contact hole 202 arranged on the lower end surface of the base 201, a metal contact is coaxially installed in the contact hole 202, a side hole connected to the contact hole 202 is arranged on the side of the base 201, a wire 203 is connected to the outer cylindrical surface of the metal contact, and the end of the wire 203 passes through the side hole and is connected to the high-voltage electrical component.

[0023] The lower connection assembly includes a lower connection unit located directly below the upper connection unit, and the lower connection unit is correspondingly provided with several groups. Further, the lower connection unit includes a wire 2 and an insulating sleeve column 204 which is coaxially located below the contact hole 202 and is hollow inside. One end of the wire 2 is connected to the low-voltage electrical component, and the other end passes through the insulating sleeve column 204 and is provided with a metal contact rod. The wire 2 is fixedly connected to the insulating sleeve column 204. The outer sleeve of the insulating sleeve column 204 is provided with a separation sleeve 205, and the lower opening of the separation sleeve 205 is provided with a built-in step. The upper end of the insulating sleeve column 204 is provided with an external step. The outer cylindrical surface of the insulating sleeve column 204 is also provided with an outer shoulder located below the separation sleeve 205. The outer sleeve of the insulating sleeve column 204 is provided with a spring 206 located between the outer shoulder and the built-in step. When the spring 206 is not compressed When retracted, the metal contact rod is completely hidden in the separation sleeve 205, and the separation sleeve 205 is made of fire-resistant insulating material. Initially, the metal contact rod is inserted into the contact hole 202, similar to a plug inserted into a socket, and the metal contact rod and the metal contact sheet form a wire connection, so that the low-voltage electrical components and the high-voltage electrical components form a conductive connection, and the spring 206 is compressed to enable the high and low voltage distribution cabinets to operate normally. When a fire occurs, the low-voltage electrical components are driven to move downward, and the metal contact rod leaves the contact hole 202, and the low-voltage electrical components are disconnected from the high-voltage electrical components. At the same time, the metal contact rod retracts into the separation sleeve 205, which disconnects the conductive connection and protects the metal contact rod from being melted and condensed together by the fire to cause cross-connection problems. At the same time, it has an arc extinguishing effect to prevent two adjacent metal contact rods from being too close to each other and easily causing electric sparks and arcs.

[0024] 3. A protection component 300 for fire extinguishing protection is provided in the power distribution cabinet 100: Reference Figure 7-Figure 10 The protection component 300 includes a disconnecting component and a fire extinguishing component. The disconnecting component is used to drive the low-voltage electrical components to move downward, so that the conductive connection between the low-voltage electrical components and the high-voltage electrical components is disconnected and the connecting port 105 is closed. The fire extinguishing component is used to extinguish the high-voltage electrical components in the inner shell 101.

[0025] Reference Figure 8 and Fig. 9 The disconnection component includes a gas tank 301, a cylinder 303 and a camera 102 located in the inner shell 101. The camera 102 can be realized by existing thermal imaging camera technology. When a fire occurs in the inner shell 101, it can promptly sense and send a signal to the connecting valve group 304. The connecting valve group 304 is located between the gas tank 301 and the cylinder 303.

[0026] The cylinder 303 is arranged vertically and the output end is connected to the low-voltage electrical component. The gas tank 301 is filled with compressed gas medium, such as air.

[0027] The connecting valve group 1 304 includes a connecting pipe 2 308 connected to the gas tank 1 301 and a connecting pipe 1 307 connected to the cylinder 303. A solenoid valve 309 and a trigger valve are arranged in parallel between the connecting pipe 1 307 and the connecting pipe 2 308. The solenoid valve 309 can be realized by existing technology and will not be described in detail.

[0028] The trigger valve includes a valve housing 310, a valve core 311 is sleeved in the valve housing 310, an upper nozzle and a lower nozzle located in the same straight line are extended from the outer circumferential surface of the valve housing 310, the upper nozzle is connected to the second connecting pipe 308, and the lower nozzle is connected to the first connecting pipe 307, an annular groove 313 is provided on the outer circumferential surface of the valve core 311, a valve stem 314 is extended from the end of the valve core 311, the end of the valve stem 314 protrudes from the valve housing 310, and the outer sleeve of the valve stem 314 is provided with a valve located on the valve core 31 1 and the end of the valve housing 310, and the end of the valve stem 314 and the side of the inner housing 101 away from the connection valve group 1 304 are connected by a connecting line 315. Initially, the spring 312 is in a compressed state and the annular groove 313 and the upper connecting nozzle are not connected to each other. When the connecting line 315 is burned by the flame, the spring 312 can release the elastic force to connect the annular groove 313 with the upper connecting nozzle. The connecting line 315 can be a nylon line or a cotton line, etc.

[0029] When a fire occurs, if the camera 102 is in good condition, it will send a signal in time to open the solenoid valve 309, connect the gas tank 301 with the cylinder 303, and drive the compressed gas medium to operate the cylinder 303 and drive the low-voltage electrical components to move downward. If the camera breaks down due to a long time or other factors, the flame will burn the connecting line 315 in time, causing the trigger valve to be opened, connecting the gas tank 301 with the cylinder 303, and at the same time drive the low-voltage electrical components to move downward.

[0030] Reference Figure 8 and Fig.10 The fire extinguishing assembly includes a gas tank 302 and a fire extinguishing box 305 located above the high-voltage electrical components. The gas tank 302 is filled with a compressed gas medium, such as nitrogen. The fire extinguishing box 305 stores an insulating fire extinguishing medium, such as dry powder. The gas tank 302 and the fire extinguishing box 305 are connected by a connecting valve group 306. The structure of the connecting valve group 306 is consistent with the structure of the connecting valve group 1 304. The connection relationship between the connecting valve group 306, the gas tank 302 and the fire extinguishing box 305 is consistent with the connection relationship between the connecting valve group 1 304, the gas tank 1 301 and the cylinder 303, so that the gas tank 302 can be connected to the fire extinguishing box 305 when a fire occurs.

[0031] There is a nozzle 3051 below the fire extinguishing box 305 , and the nozzle 3051 is connected to the fire extinguishing box 305 via a one-way valve. A nozzle 3052 is arranged on the outer circumferential surface of the nozzle 3051 facing downward, and a plurality of nozzles 3052 are arranged in an array along the axial direction of the nozzle 3051 .

[0032] Furthermore, the one-way valve includes a valve tube 3053 vertically arranged between the bottom of the fire extinguishing box 305 and the nozzle 3051, and an inner bracket and an inner shoulder are arranged in the valve tube 3053. The inner shoulder is located above the inner bracket and a valve ball 3054 and a spring three 3055 are arranged between the two. The spring three 3055 is located below the valve ball 3054. Initially, the spring three 3055 is compressed, the valve ball 3054 blocks the inner shoulder, and the gravity of the insulating fire extinguishing medium in the fire extinguishing box 305 is insufficient to overcome the elastic force of the spring three 3055 to open the inner shoulder. When a fire occurs, the gas tank two 302 is connected to the fire extinguishing box 305. After the compressed gas medium in the gas tank two 302 flows into the fire extinguishing box 305, it will overcome the elastic force of the spring three 3055 to open the inner shoulder, thereby driving the insulating fire extinguishing medium to spray downward to achieve the purpose of fire extinguishing.

[0033] A method for using an intelligent monitoring high and low voltage distribution cabinet: Step 1: During normal use, the metal contact rod of the connecting member 200 is inserted into the contact hole 202 and contacts the metal contact sheet to achieve a conductive connection between the low-voltage electrical component and the high-voltage electrical component. The power distribution cabinet operates normally. At the same time, the airflow generated by the operation of the fan 103 can flow into the inner shell 101 and be discharged through the air outlet arranged on the side of the inner shell 101 and close to the upper end of the inner shell 101, thereby achieving heat dissipation and cooling of the high-voltage electrical components in the inner shell 101; Step 2: When a fire occurs, the dual monitoring trigger of the camera 102 and the connecting line 315 causes the connecting valve group 1 304 and the connecting valve group 2 306 to be opened, so that the gas tank 1 301 is connected to the cylinder 303, and the gas tank 2 302 is connected to the fire extinguishing box 305, wherein: The compressed gas medium in the gas tank 301 drives the cylinder 303 to operate, thereby driving the low-voltage electrical component to move downward, the metal contact rod leaves the contact hole 202, and the low-voltage electrical component is disconnected from the high-voltage electrical component. At the same time, the metal contact rod retracts into the separation sleeve 205, which disconnects the conductive connection and protects the metal contact rod from being melted and condensed together by fire to cause a bridge problem. At the same time, it has an arc extinguishing effect to prevent two adjacent metal contact rods from being too close to each other and easily causing electric sparks and arcs. After the compressed gas medium in the gas tank 2 302 flows into the fire extinguishing box 305, it will overcome the elastic force of the spring 3 3055 and open the inner shoulder, thereby driving the insulating fire extinguishing medium to spray downward to achieve the purpose of fire extinguishing.

[0034] Preferably, the connecting valve group 1 304 and the connecting valve group 2 306 share a connecting line 315, which means that when the camera 102 detects a fire first, a signal is sent to open the connecting valve group 1 304 and the connecting valve group 2 306 at the same time. When the connecting line 315 is burned by the fire first, the connecting valve group 1 304 and the connecting valve group 2 306 are also opened at the same time. The advantages of opening them at the same time are: on the one hand, the operation of the cylinder 303 drives the low-voltage electrical components to move downward, so that the power distribution cabinet is powered off and the connecting port 105 is closed through the deflection plate 106. On the other hand, the insulating fire extinguishing medium in the fire extinguishing box 305 is sprayed downward into the inner shell 101 to achieve a fire extinguishing effect. The cooperation of the two can make most of the insulating fire extinguishing medium located in the inner shell 101, so that the fire extinguishing effect is better, and the fire extinguishing effect includes extinguishing or suppressing the flame in the first time. system, and the surface of the high-voltage electrical components attached to the inner shell 101, hindering the expansion of the flame; on the contrary, if the connecting valve group 1 304 and the connecting valve group 2 306 are not opened at the same time, then not only is it easy for the insulating fire extinguishing medium to leak out through the unsealed connecting port 105, which will affect the fire extinguishing effect of the insulating fire extinguishing medium on the high-voltage electrical components, but also the connecting wire 315 will fall downward after being burned by the flame, and it is easy to become a ignition medium, thereby easily causing the flame to spread to the rest of the high-voltage electrical components; in contrast, in the present application, the connecting valve group 1 304 and the connecting valve group 2 306 are opened at the same time, not only can most of the insulating fire extinguishing medium be located in the inner shell 101, thereby making the fire extinguishing effect better, but also the burning connecting wire 315 will also be promptly affected by the fire extinguishing effect of the insulating fire extinguishing medium, and will not become a ignition medium. In summary, the fire extinguishing effect of the present application is better.

[0035] In this application, intelligent monitoring is reflected in the ability to achieve automated real-time monitoring of distribution cabinets and automated and timely fire extinguishing without the need for human assistance.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intelligent monitoring type high and low voltage distribution cabinet, comprising a distribution cabinet body (100), It is characterized in that An inner housing (101) and electrical components are installed in the power distribution cabinet (100), wherein the electrical components include low-voltage electrical components located below the inner housing (101) and high-voltage electrical components located inside the inner housing (101); A protection component (300) is arranged in the power distribution cabinet (100), and the protection component (300) includes a disconnection component and a fire extinguishing component. The disconnection component includes a gas tank (301), a cylinder (303), and a connecting valve group (304) arranged therebetween. A camera (102) is installed in the inner housing (101). The cylinder (303) is arranged vertically and its output end is connected to a low-voltage electrical component. The gas tank (301) is filled with a compressed gas medium. The connecting valve group (304) is used to be opened in the event of a fire, so that the cylinder (303) is connected to the gas tank (301). The fire extinguishing assembly comprises a second gas cylinder (302) and a fire extinguishing box (305) located above the high-voltage electrical component. The second gas cylinder (302) is filled with a compressed gas medium, and the fire extinguishing box (305) stores an insulating fire extinguishing medium. The second gas cylinder (302) and the fire extinguishing box (305) are connected via a second connecting valve group (306). The second connecting valve group (306) is used to be opened when a fire occurs, so that the second gas cylinder (302) and the fire extinguishing box (305) are connected.

2. According to claim 1, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The connecting valve group 1 (304) comprises a connecting pipe 2 (308) connected to the gas tank 1 (301) and a connecting pipe 1 (307) connected to the gas cylinder (303). A solenoid valve (309) and a trigger valve are arranged in parallel between the connecting pipe 1 (307) and the connecting pipe 2 (308).

3. According to claim 2, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The trigger valve comprises a valve housing (310). An upper nozzle and a lower nozzle located on the same straight line are extended from the outer circumferential surface of the valve housing (310). The upper nozzle is connected to the second connecting pipe (308), and the lower nozzle is connected to the first connecting pipe (307). A valve core (311) is sleeved inside the valve housing (310). An annular groove (313) is provided on the outer circumferential surface of the valve core (311). A valve stem (314) extends from the end of the valve core (311). The end of the valve stem (314) protrudes out of the valve housing (310). A second spring (312) located between the valve core (311) and the end of the valve housing (310) is sleeved outside the valve stem (314). The end of the valve stem (314) is connected to a side of the inner housing (101) away from the first connecting valve group (304) via a connecting line (315). Initially, the second spring (312) is in a compressed state, and the annular groove (313) and the upper nozzle are not connected to each other.

4. According to claim 3, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The structure of the connecting valve group 2 (306) is consistent with the structure of the connecting valve group 1 (304), and the connection relationship between the connecting valve group 2 (306), the gas tank 2 (302) and the fire extinguisher box (305) is consistent with the connection relationship between the connecting valve group 1 (304), the gas tank 1 (301) and the cylinder (303).

5. According to claim 4, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The bottom of the fire extinguishing box (305) is connected to a nozzle (3051) via a one-way valve. A nozzle (3052) is arranged on the outer circumferential surface of the nozzle (3051) facing downward. A plurality of nozzles (3052) are arranged in an array along the axis direction of the nozzle (3051). The one-way valve is used to allow the insulating fire extinguishing medium in the fire extinguishing box (305) to flow toward the nozzle (3051) in one direction. Initially, the gravity of the insulating fire extinguishing medium in the fire extinguishing box (305) is insufficient to open the one-way valve.

6. According to claim 4, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The connecting valve group 1 (304) and the connecting valve group 2 (306) share a connecting line (315).

7. According to claim 6, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that A connection port (105) is provided at the bottom of the inner shell (101), a fan (103) is installed in the shell of the low-voltage electrical component, a notch is provided on the upper end surface of the shell of the low-voltage electrical component, a convex tube (104) extends from the upper opening of the notch, and the convex tube (104) is located directly below the connection port (105); Two deflection plates (106) are hingedly installed in the inner shell (101), and the hinges of the two deflection plates (106) are respectively located on both sides of the connection port (105). Initially, the convex tube (104) is inserted into the connection port (105), and the upper end of the convex tube (104) contacts the deflection plate (106), and the output end of the fan (103) is connected to the notch. When the convex tube (104) leaves the connection port (105), the deflection plate (106) deflects downward under the action of gravity. When the deflection plate (106) is arranged horizontally, the bottom of the deflection plate (106) contacts the lower cavity wall of the inner shell (101), and the ends of the two deflection plates (106) facing each other contact each other.

8. According to claim 7, an intelligent monitoring type high and low voltage distribution cabinet, It is characterized in that The low-voltage electrical component and the high-voltage electrical component are electrically connected via a connecting component (200), and the connecting component (200) comprises an upper connecting component and a lower connecting component; The upper connection assembly comprises an installation opening arranged at the bottom of the inner shell (101), a base (201) is arranged in the installation opening, a plurality of groups of upper connection units are arranged in an array along the length direction on the base (201), the upper connection unit comprises a contact hole (202) arranged on the lower end surface of the base (201), a metal contact piece is coaxially installed in the contact hole (202), a side hole connected to the contact hole (202) is arranged on the side of the base (201), a wire 1 (203) is connected to the outer cylindrical surface of the metal contact piece, and the end of the wire 1 (203) passes through the side hole and is connected to the high-voltage electrical component; The lower connection assembly comprises a lower connection unit located directly below the upper connection unit, the lower connection unit comprises a second conductor and an insulating sleeve column (204) coaxially located below the contact hole (202) and having a hollow interior, one end of the second conductor being connected to a low-voltage electrical component and the other end being provided with a metal contact rod passing through the insulating sleeve column (204), the second conductor being connected to the insulating sleeve column (204), the outer sleeve of the insulating sleeve column (204) being provided with a separation sleeve (205), the lower opening of the separation sleeve (205) being provided with an internal step, the upper end of the insulating sleeve column (204) being provided with an external step, the outer cylindrical surface of the insulating sleeve column (204) being provided with an external shoulder located below the separation sleeve (205), a spring 1 (206) being provided between the external shoulder and the internal step, when the spring 1 (206) is not compressed, the metal contact rod is entirely hidden in the separation sleeve (205), and initially, the metal contact rod is inserted into the contact hole (202).

9. A method for using an intelligent monitoring type high and low voltage distribution cabinet as claimed in claim 8, It is characterized in that The steps include: Step 1: During normal use, the metal contact rod of the connecting member (200) is inserted into the contact hole (202) and contacts the metal contact sheet, thereby achieving a conductive connection between the low-voltage electrical component and the high-voltage electrical component. The power distribution cabinet operates normally. At the same time, the airflow generated by the operation of the fan (103) can flow into the inner shell (101) and be discharged through the air outlet arranged on the side of the inner shell (101) and close to the upper end of the inner shell (101), thereby achieving heat dissipation and cooling of the high-voltage electrical components in the inner shell (101); Step 2: When a fire occurs, the camera (102) or the connecting line (315) is triggered, so that the connecting valve group 1 (304) and the connecting valve group 2 (306) are opened at the same time, the gas tank 1 (301) is connected to the gas cylinder (303), and the gas tank 2 (302) is connected to the fire extinguishing box (305); The compressed gas medium in the gas tank 1 (301) drives the gas cylinder (303) to operate, thereby driving the low-voltage electrical component to move downward, and the metal contact rod leaves the contact hole (202) and retracts into the separation sleeve (205), and the low-voltage electrical component is disconnected from the high-voltage electrical component; The compressed gas medium in the second gas tank (302) flows into the fire extinguishing box (305), opens the one-way valve, and drives the insulating fire extinguishing medium to spray downwards to achieve fire extinguishing.

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