Power distribution cabinet with infiltration arc extinguishing function for power distribution station

Abstract

The invention relates to the technical field of power distribution cabinets for power distribution stations, and discloses a power distribution cabinet with an infiltration arc extinguishing function for a power distribution station, the power distribution cabinet with the infiltration arc extinguishing function for the power distribution station is scientific and reasonable in structure and safe and convenient to use, the power distribution cabinet with the infiltration arc extinguishing function for the power distribution station comprises a cabinet body, a touch device and an infiltration cover are installed in the cabinet body, and the infiltration cover covers the touch device; an oil tank is installed on the cabinet body, a pump machine is installed on the oil tank, the pump machine is connected with the oil tank through an oil suction pipe, the pump machine is connected with an infiltration cover through an oil conveying pipe, the infiltration cover is connected with the oil tank through an oil return pipe, and a refrigerator is installed in the oil tank. The transformer oil in the oil tank can be conveyed into the infiltration cover through the oil suction pipe and the oil conveying pipe, so that the contact of the contactor can be infiltrated in the oil, the oil can be gasified and decomposed by an electric arc to form oil gas when the contact of the contactor performs switch switching to form the electric arc, and the arc extinguishing effect can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets for power distribution stations, and in particular to a power distribution cabinet for power distribution stations with an infiltration arc extinguishing function. Background Art

[0002] A distribution station is a transformer substation, which refers to a place in the power system that transforms voltage and current, receives and distributes electric energy. A distribution cabinet is a commonly used installation unit in a transformer substation. It is used to install the electrical components required for power transformation to form a complete motor control center. The motor control center is used in places with concentrated loads and many circuits. They distribute the power of a circuit of the upper-level distribution equipment to the nearest load. During the use of the distribution cabinet, a large number of arcs are often generated inside the cabinet when the relay is opened and closed. If these arcs are not eliminated in time, it is easy to cause damage to electrical components and even cause electric shock to personnel. Therefore, the existing distribution cabinets for distribution stations need to have arc extinguishing functions.

[0003] However, most of the existing distribution cabinets used in distribution stations do not have the arc extinguishing function. Even for a small number of distribution cabinets with arc extinguishing function, the arc extinguishing function is achieved by simply installing arc extinguishing covers. The arc extinguishing effect is relatively general, which can easily cause damage to the electrical components in the distribution cabinet and affect the service life of the electrical components. Summary of the invention

[0004] The object of the present invention is to provide a distribution cabinet for a distribution station with an infiltration arc extinguishing function to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a distribution cabinet for a distribution station with an immersion arc extinguishing function, the distribution cabinet for a distribution station with an immersion arc extinguishing function comprises a cabinet body, a contactor and an immersion cover are installed in the cabinet body, the immersion cover covers the contactor, an oil tank is installed on the cabinet body, a pump is installed on the oil tank, the input end of the pump is connected to the oil tank through an oil suction pipe, the output end of the pump is connected to one side of the immersion cover through an oil delivery pipe, and the other side of the immersion cover is connected to the oil tank through an oil return pipe. A refrigerator is installed in the oil tank. By starting the pump, the transformer oil in the oil tank can be transported to the immersion cover through the oil suction pipe and the oil delivery pipe, so that the contacts of the electric shock device can be immersed in the oil. When the contacts of the electric shock device are switched to form an arc, the arc can gasify and decompose the oil to form oil gas, thereby achieving the effect of extinguishing the arc. At the same time, the circulating oil circuit formed by the oil suction pipe, the oil delivery pipe and the oil return pipe can allow the refrigerator in the oil tank to cool the oil carrying heat, which is beneficial to ensuring the arc extinguishing cooling effect of the oil.

[0006] As an optimal technical solution, the cabinet is provided with a first-level arc extinguishing utilization component, a second-level arc extinguishing utilization component and a third-level arc extinguishing utilization component, and the fast-flowing oil in the return oil pipe is used to provide operating driving force for the first-level arc extinguishing utilization component, the second-level arc extinguishing utilization component and the third-level arc extinguishing utilization component.

[0007] As a preferred technical solution, the arc extinguishing primary utilization component includes a cylinder, a piston, a support spring, a branch pipe, a pressure relief valve, a touch switch, a pressing block, an air intake pipe and an exhaust pipe;

[0008] The oil tank is equipped with a cylinder body, and a piston is slidably installed in the cylinder body, and an air chamber and a negative pressure chamber are formed in the cylinder body through the piston, and the air chamber is above the negative pressure chamber, and the bottom of the piston is connected to the cylinder body through a supporting spring, and the bottom of the negative pressure chamber is connected to the oil return pipe through a branch pipe, and a pressure relief valve is installed on the negative pressure chamber, and an electric-controlled one-way valve is installed on the branch pipe, and a touch switch is installed at the bottom of the piston, and the touch switch is electrically connected to the electric-controlled one-way valve and the pressure relief valve, and a pressing block is installed at the inner bottom of the cylinder body, and the air chamber is connected to the top of the infiltration hood through an air intake pipe, and an exhaust pipe is installed on the air chamber. When the oil is transported quickly in the return oil pipe, negative pressure can be formed in the negative pressure chamber through the electric one-way valve on the branch pipe, so that the piston can compress the support spring to move downward. At the same time, the piston can inhale the oil and gas in the wetting hood through the suction pipe during the downward movement. When the piston moves to the lowest point, the pressing block presses the touch switch to close the electric one-way valve in stages and open the pressure relief valve in stages, so that the piston can move upward under the elastic force of the support spring. At this time, the oil and gas in the air chamber can be discharged through the exhaust pipe under the action of squeezing, and the oil and gas in the wetting hood can be continuously absorbed and discharged during the reciprocating movement of the piston.

[0009] As an optimal technical solution, the intake pipe and the exhaust pipe are both one-way pipes. In the initial state, the electrically controlled one-way valve is opened and the pressure relief valve is closed. When the touch switch is pressed, the electrically controlled one-way valve is controlled to be closed in stages and the pressure relief valve is controlled to be opened in stages.

[0010] As a preferred technical solution, the arc extinguishing secondary utilization component includes a transmission shaft, a sliding hole, a spiral track, a connecting ring, a driving ring wheel, a driving shaft, a rotating shaft, a transmission wheel, a transmission belt and a fan blade;

[0011] A transmission shaft is installed on the piston, a sliding hole is opened on the top of the cylinder body, the transmission shaft passes through the sliding hole, and a spiral track is provided on the transmission shaft, a connecting ring is installed on the top of the cylinder body, a driving ring wheel is rotatably installed on the connecting ring, a driving shaft is rotatably installed on the driving ring wheel, and the driving shaft slides and is inserted in the spiral track, a rotating shaft is rotatably installed on the top of the cabinet body, a transmission wheel is installed on the upper end of the rotating shaft, a transmission belt is sleeved on the transmission wheel and the driving ring wheel, and a fan blade is installed on the lower end of the rotating shaft. When the piston moves, the squeezing force of the spiral track on the driving shaft can drive the driving ring wheel to rotate, and then through the pulley transmission composed of the driving ring wheel, the transmission belt and the transmission wheel, the fan blade can be driven to rotate through the rotating shaft, which is conducive to forming an upward adsorption force in the cabinet body.

[0012] As a preferred technical solution, two groups of air inlets are symmetrically provided on both sides of the upper part of the cabinet, and two groups of heat dissipation ports are symmetrically provided on both sides of the lower part of the cabinet. Filters are installed in the air inlets and the heat dissipation ports. By utilizing the upward adsorption force in the cabinet, external airflow can enter the cabinet through the air inlet, and the heat-carrying gas can be discharged through the heat dissipation ports to achieve heat dissipation inside the cabinet. At the same time, the dust in the airflow can be intercepted by the filter on the air inlet, which can prevent dust from entering the cabinet and corroding electrical components.

[0013] As a preferred technical solution, the arc extinguishing three-stage utilization component includes an elliptical wheel, a first slide, a first slider, a return spring, a linkage plate, a second slide, a second slider, a push-pull plate, a connecting rod and a wiping plate;

[0014] An elliptical wheel disc is installed at the upper end of the transmission wheel, two groups of first slideways are installed horizontally and symmetrically on the top of the cabinet, first sliders are slidably installed in the two groups of the first slideways, the first sliders are connected to the first slideways through a return spring, a linkage plate is installed on the first slider, and the linkage plate contacts the outer contour of the elliptical wheel disc, two groups of second slideways are symmetrically opened on both sides of the top of the cabinet, two second sliders are slidably installed in the two groups of the second slideways, the two second sliders are connected to the linkage plate on the same side through a push-pull plate, and both ends of the push-pull plate are connected to the second slider and the linkage plate The wiping plate is hinged and installed with the second slider through the connecting rod. The wiping plate is in contact with the filter on the air inlet. When the transmission wheel rotates, the transmission wheel can drive the elliptical wheel to rotate synchronously. The elliptical wheel exerts a squeezing force on the linkage plate during rotation to realize the lateral reciprocating movement of the linkage plate. When the two linkage plates move away from each other, the linkage plate can drive the two second sliders in the second slide to move toward each other through the push-pull plate during movement, so that the second slider can drive the wiping plate to wipe the filter through the connecting rod, thereby preventing dust from clogging the filter.

[0015] As an optimal technical solution, a ball groove is provided on the side of the linkage plate away from the push-pull plate, and a ball is installed in the ball groove for rolling. The ball is in point contact with the outer contour of the elliptical wheel disc. Since the ball can roll in the ball groove, the friction between the linkage plate and the outer contour of the elliptical wheel disc can be reduced, thereby ensuring the extrusion effect of the elliptical wheel disc on the linkage plate.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] By starting the pump, the transformer oil in the oil tank can be transported to the immersion cover through the oil suction pipe and the oil delivery pipe, so that the contacts of the shock device can be immersed in the oil. When the contacts of the shock device are switched to form an arc, the arc can gasify and decompose the oil to form oil gas, thereby achieving the effect of extinguishing the arc. At the same time, the circulating oil circuit formed by the oil suction pipe, the oil delivery pipe and the oil return pipe can allow the refrigerator in the oil tank to cool the oil carrying heat, which is beneficial to ensure the arc extinguishing cooling effect of the oil.

[0018] When the oil is transported quickly in the oil return pipe, the negative pressure formed in the negative pressure chamber allows the air chamber to suck in the oil and gas in the wetting hood through the suction pipe. When the piston moves to the lowest point, the piston can move upward under the elastic force of the supporting spring. At this time, the oil and gas in the air chamber can be discharged through the exhaust pipe under the action of squeezing, and the oil and gas in the wetting hood can be continuously absorbed and discharged during the reciprocating movement of the piston.

[0019] When the piston moves, the squeezing force of the spiral track on the drive shaft is transmitted through the pulley composed of the drive ring wheel, the transmission belt and the transmission wheel, which can drive the fan blades to rotate, so that an upward adsorption force is formed in the cabinet body, which can achieve heat dissipation inside the cabinet body.

[0020] By utilizing the squeezing force of the elliptical wheel disc on the linkage plate, the linkage plate can be moved back and forth horizontally, so that the wiping plate can wipe the filter screen, thereby preventing dust from clogging the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the structure of the present invention from a first viewing angle;

[0023] Figure 2 is a schematic diagram of the structure of the present invention from a second viewing angle;

[0024] Figure 3 is a first cross-sectional structural schematic diagram of the present invention;

[0025] Figure 4 is a second cross-sectional structural schematic diagram of the present invention;

[0026] Figure 5 is a third cross-sectional structural schematic diagram of the present invention;

[0027] Figure 6 yes Figure 5 A is an enlarged structural diagram;

[0028] Figure 7 yes Figure 3 The enlarged structural diagram at B in FIG.

[0029] Figure 8 yes Figure 5 The enlarged structural diagram at C in the figure.

[0030] In the figure: 1. cabinet; 2. contactor; 3. wetting cover; 4. oil tank; 5. pump; 6. oil suction pipe; 7. oil delivery pipe; 8. oil return pipe;

[0031] 10. Arc extinguishing primary utilization component; 1001. Cylinder body; 1002. Piston; 1003. Support spring; 1004. Branch pipe; 1005. Pressure relief valve; 1006. Touch switch; 1007. Press block; 1008. Intake pipe; 1009. Exhaust pipe;

[0032] 11. Arc extinguishing secondary utilization component; 1101. Transmission shaft; 1102. Slide hole; 1103. Spiral track; 1104. Connecting ring; 1105. Driving ring wheel; 1106. Driving shaft; 1107. Rotating shaft; 1108. Transmission wheel; 1109. Transmission belt; 1110. Fan blade; 1111. Air inlet; 1112. Heat dissipation outlet; 1113. Filter;

[0033] 12. Arc extinguishing three-stage utilization component; 1201. Elliptical wheel; 1202. First slideway; 1203. First slider; 1204. Return spring; 1205. Linkage plate; 1206. Second slideway; 1207. Second slider; 1208. Push-pull plate; 1209. Connecting rod; 1210. Wiping plate; 1211. Ball groove; 1212. Ball. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example: Figure 1-Figure 5As shown, the present invention provides the following technical solutions: a distribution cabinet for distribution stations with an infiltration arc extinguishing function, the distribution cabinet for distribution stations with an infiltration arc extinguishing function comprises a cabinet body 1, a contactor 2 and an infiltration cover 3 are installed in the cabinet body 1, the infiltration cover 3 covers the contactor 2, an oil tank 4 is installed on the cabinet body 1, a pump 5 is installed on the oil tank 4, the input end of the pump 5 is connected to the oil tank 4 through an oil suction pipe 6, the output end of the pump 5 is connected to one side of the infiltration cover 3 through an oil delivery pipe 7, and the other side of the infiltration cover 3 is connected to the oil tank 4 through an oil return pipe 8, A refrigerator is installed in the oil tank 4. By starting the pump 5, the transformer oil in the oil tank 4 can be transported to the immersion cover 3 through the oil suction pipe 6 and the oil delivery pipe 7, so that the contacts of the electric shock device 2 can be immersed in the oil. When the contacts of the electric shock device 2 are switched to form an arc, the arc can gasify and decompose the oil to form oil gas, thereby achieving the effect of extinguishing the arc. At the same time, the circulating oil circuit formed by the oil suction pipe 6, the oil delivery pipe 7 and the return oil pipe 8 can allow the refrigerator in the oil tank 4 to cool the oil carrying heat, which is beneficial to ensuring the arc extinguishing cooling effect of the oil.

[0036] The cabinet 1 is provided with a primary arc extinguishing utilization component 10, a secondary arc extinguishing utilization component 11 and a tertiary arc extinguishing utilization component 12, and the rapidly flowing oil in the return oil pipe 8 is used to provide operating driving force for the primary arc extinguishing utilization component 10, the secondary arc extinguishing utilization component 11 and the tertiary arc extinguishing utilization component 12.

[0037] like Figure 1-Figure 2 and Figure 6 As shown, the arc extinguishing primary utilization component 10 includes a cylinder 1001, a piston 1002, a support spring 1003, a branch pipe 1004, a pressure relief valve 1005, a touch switch 1006, a pressing block 1007, an air intake pipe 1008 and an exhaust pipe 1009;

[0038] The oil tank 4 is provided with a cylinder 1001, in which a piston 1002 is slidably installed, and an air chamber and a negative pressure chamber are formed in the cylinder 1001 through the piston 1002, and the air chamber is located above the negative pressure chamber, and the bottom of the piston 1002 is connected to the cylinder 1001 through a supporting spring 1003, and the bottom of the negative pressure chamber is connected to the oil return pipe 8 through a branch pipe 1004, and a pressure relief valve 1005 is installed on the negative pressure chamber, and an electric-controlled one-way valve is installed on the branch pipe 1004, and a touch switch 1006 is installed at the bottom of the piston 1002, and the touch switch 1006 is electrically connected to the electric-controlled one-way valve and the pressure relief valve 1005, and a pressing block 1007 is installed at the inner bottom of the cylinder 1001, and the air chamber is connected to the top of the infiltration hood 3 through an air intake pipe 1008, and the air chamber An exhaust pipe 1009 is installed. When the oil is quickly transported in the return oil pipe 8, negative pressure can be formed in the negative pressure chamber through the electrically controlled one-way valve on the branch pipe 1004, so that the piston 1002 can compress the support spring 1003 to move downward. At the same time, the piston 1002 can inhale the oil and gas in the infiltration hood 3 through the suction pipe 1008 during the downward movement. When the piston 1002 moves to the lowest point, the pressing block 1007 presses the touch switch 1006, so that the electrically controlled one-way valve is closed in stages and the pressure relief valve 1005 is opened in stages, so that the piston 1002 can move upward under the elastic force of the support spring 1003. At this time, the oil and gas in the air chamber can be discharged through the exhaust pipe 1009 under the action of squeezing, and the oil and gas in the infiltration hood 3 can be continuously absorbed and discharged during the reciprocating movement of the piston 1002.

[0039] The air intake pipe 1008 and the air exhaust pipe 1009 are both one-way pipes. In the initial state, the electrically controlled one-way valve is opened and the pressure relief valve 1005 is closed. When the touch switch 1006 is pressed, the electrically controlled one-way valve is controlled to be closed in stages and the pressure relief valve 1005 is controlled to be opened in stages.

[0040] like Figure 1-Figure 7 As shown, the arc extinguishing secondary utilization component 11 includes a transmission shaft 1101, a sliding hole 1102, a spiral track 1103, a connecting ring 1104, a driving ring wheel 1105, a driving shaft 1106, a rotating shaft 1107, a transmission wheel 1108, a transmission belt 1109 and a fan blade 1110;

[0041] The piston 1002 is provided with a transmission shaft 1101. A sliding hole 1102 is provided at the top of the cylinder 1001. The transmission shaft 1101 passes through the sliding hole 1102, and a spiral track 1103 is provided on the transmission shaft 1101. A connecting ring 1104 is provided at the top of the cylinder 1001. A driving ring wheel 1105 is rotatably provided on the connecting ring 1104. A driving shaft 1106 is rotatably provided on the driving ring wheel 1105. The driving shaft 1106 slides and penetrates the spiral track 1103. A rotating shaft 1107 is rotatably provided on the top of the cabinet 1. A transmission wheel 1108 is installed at the upper end of 1107, and a transmission belt 1109 is installed on the transmission wheel 1108 and the driving ring wheel 1105. A fan blade 1110 is installed at the lower end of the rotating shaft 1107. When the piston 1002 moves, the squeezing force of the spiral track 1103 on the driving shaft 1106 can drive the driving ring wheel 1105 to rotate, and then the fan blade 1110 can be driven to rotate through the pulley transmission composed of the driving ring wheel 1105, the transmission belt 1109 and the transmission wheel 1108 through the rotating shaft 1107, which is conducive to forming an upward adsorption force in the cabinet 1.

[0042] Two groups of air inlets 1111 are symmetrically provided on both sides of the upper part of the cabinet 1, and two groups of heat dissipation ports 1112 are symmetrically provided on both sides of the lower part of the cabinet 1. Filters 1113 are installed in the air inlets 1111 and the heat dissipation ports 1112. By utilizing the upward adsorption force in the cabinet 1, external airflow can enter the cabinet 1 through the air inlets 1111, and the heat-carrying gas can be discharged through the heat dissipation ports 1112, thereby achieving heat dissipation inside the cabinet 1. At the same time, the dust in the airflow can be intercepted by the filters 1113 on the air inlets 1111, thereby preventing dust from entering the cabinet 1 and corroding electrical components.

[0043] like Figure 1-Figure 5 and Figure 7-Figure 8 As shown, the arc extinguishing three-stage utilization component 12 includes an elliptical wheel 1201, a first slide 1202, a first slider 1203, a return spring 1204, a linkage plate 1205, a second slide 1206, a second slider 1207, a push-pull plate 1208, a connecting rod 1209 and a wiping plate 1210;

[0044] An elliptical wheel disc 1201 is installed at the upper end of the transmission wheel 1108, and two groups of first slideways 1202 are installed laterally symmetrically on the top of the cabinet 1, and first sliders 1203 are slidably installed in the two groups of the first slideways 1202, and the first sliders 1203 are connected to the first slideways 1202 through a reset spring 1204, and a linkage plate 1205 is installed on the first slider 1203, and the linkage plate 1205 is in contact with the outer contour of the elliptical wheel disc 1201. Two groups of second slideways 1206 are symmetrically opened on both sides of the top of the cabinet 1, and two second sliders 1207 are slidably installed in the two groups of the second slideways 1206, and the two second sliders 1207 are connected to the linkage plate 1205 on the same side through a push-pull plate 1208, and the two ends of the push-pull plate 1208 are hinged to the second slider 1207 and the linkage plate 1205 Then, the second slider 1207 is provided with a wiping plate 1210 via a connecting rod 1209, and the wiping plate 1210 is in contact with the filter 1113 on the air inlet 1111. When the transmission wheel 1108 rotates, the transmission wheel 1108 can drive the elliptical wheel 1201 to rotate synchronously. The elliptical wheel 1201 exerts an extruding force on the linkage plate 1205 during rotation, so as to realize the lateral reciprocating movement of the linkage plate 1205. When the two linkage plates 1205 move in opposite directions, the linkage plate 1205 can drive the two second sliders 1207 in the second slide 1206 to move toward each other via the push-pull plate 1208 during the movement, so that the second slider 1207 can drive the wiping plate 1210 to wipe the filter 1113 via the connecting rod 1209, thereby preventing dust from clogging the filter 1113.

[0045] A ball groove 1211 is provided on the side of the linkage plate 1205 away from the push-pull plate 1208, and a ball 1212 is installed in the ball groove 1211 for rolling. The ball 1212 is in point contact with the outer contour of the elliptical wheel 1201. Since the ball 1212 can roll in the ball groove 1211, the friction between the linkage plate 1205 and the outer contour of the elliptical wheel 1201 can be reduced, and the squeezing effect of the elliptical wheel 1201 on the linkage plate 1205 can be guaranteed.

[0046] Working principle of the present invention:

[0047] By starting the pump 5, the transformer oil in the oil tank 4 can be transported to the immersion cover 3 through the oil suction pipe 6 and the oil delivery pipe 7, so that the contacts of the shock device 2 can be immersed in the oil. When the contacts of the shock device 2 are switched to form an arc, the arc can gasify and decompose the oil to form oil gas, thereby achieving the effect of extinguishing the arc. At the same time, the circulating oil circuit formed by the oil suction pipe 6, the oil delivery pipe 7 and the return oil pipe 8 can allow the refrigerator in the oil tank 4 to cool the oil carrying heat, which is beneficial to ensure the arc extinguishing cooling effect of the oil.

[0048] When the oil is transported quickly in the return oil pipe 8, negative pressure can be formed in the negative pressure chamber through the electrically controlled one-way valve on the branch pipe 1004, so that the piston 1002 can compress the support spring 1003 to move downward. At the same time, the piston 1002 can inhale the oil and gas in the infiltration hood 3 through the suction pipe 1008 during the downward movement. When the piston 1002 moves to the lowest point, the pressing block 1007 presses the touch switch 1006, so that the electrically controlled one-way valve is closed in stages and the pressure relief valve 1005 is opened in stages, so that the piston 1002 can move upward under the elastic force of the support spring 1003. At this time, the oil and gas in the air chamber can be discharged through the exhaust pipe 1009 under the action of squeezing, and the oil and gas in the infiltration hood 3 can be continuously absorbed and discharged during the reciprocating movement of the piston 1002.

[0049] When the piston 1002 moves, the squeezing force of the spiral track 1103 on the driving shaft 1106 can drive the driving ring wheel 1105 to rotate, and then through the pulley transmission composed of the driving ring wheel 1105, the transmission belt 1109 and the transmission wheel 1108, the fan blade 1110 can be driven to rotate through the rotating shaft 1107, which is conducive to forming an upwelling adsorption force in the cabinet 1. By utilizing the upwelling adsorption force in the cabinet 1, the external airflow can enter the cabinet 1 through the air inlet 1111, and the heat-carrying gas can be discharged through the heat dissipation port 1112 to achieve heat dissipation inside the cabinet 1. At the same time, the filter 1113 on the air inlet 1111 can intercept the dust in the airflow, which can prevent the dust from entering the cabinet 1 and corroding the electrical components.

[0050] When the transmission wheel 1108 rotates, the transmission wheel 1108 can drive the elliptical wheel 1201 to rotate synchronously. The squeezing force of the elliptical wheel 1201 on the linkage plate 1205 during the rotation can realize the lateral reciprocating movement of the linkage plate 1205. When the two linkage plates 1205 move in opposite directions, the linkage plate 1205 can drive the two second sliders 1207 in the second slide 1206 to move toward each other through the push-pull plate 1208 during the movement, so that the second slider 1207 can drive the wiping plate 1210 to wipe the filter 1113 through the connecting rod 1209, thereby preventing dust from clogging the filter 1113.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A power distribution cabinet for a distribution station with an arc extinguishing function, characterized in that: The distribution cabinet for a distribution station with an immersion arc extinguishing function comprises a cabinet body (1), wherein a contactor (2) and a immersion cover (3) are installed in the cabinet body (1), wherein the immersion cover (3) covers the contactor (2), wherein an oil tank (4) is installed on the cabinet body (1), wherein a pump (5) is installed on the oil tank (4), wherein an input end of the pump (5) is connected to the oil tank (4) via an oil suction pipe (6), wherein an output end of the pump (5) is connected to one side of the immersion cover (3) via an oil delivery pipe (7), wherein the other side of the immersion cover (3) is connected to the oil tank (4) via an oil return pipe (8), and wherein a refrigerator is installed in the oil tank (4).

2. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 1, characterized in that: The cabinet (1) is provided with an arc extinguishing primary utilization component (10), an arc extinguishing secondary utilization component (11) and an arc extinguishing tertiary utilization component (12), and the rapidly flowing oil in the oil return pipe (8) is used to provide operating driving force for the arc extinguishing primary utilization component (10), the arc extinguishing secondary utilization component (11) and the arc extinguishing tertiary utilization component (12).

3. A distribution station distribution cabinet with arc extinguishing function according to claim 2, characterized in that: The arc extinguishing primary utilization component (10) comprises a cylinder body (1001), a piston (1002), a supporting spring (1003), a branch pipe (1004), a pressure relief valve (1005), a touch switch (1006), a pressing block (1007), an air intake pipe (1008) and an air discharge pipe (1009); The oil tank (4) is provided with a cylinder (1001), a piston (1002) is slidably installed in the cylinder (1001), an air chamber and a negative pressure chamber are formed in the cylinder (1001) by the piston (1002), the air chamber is located above the negative pressure chamber, the bottom of the piston (1002) is connected to the cylinder (1001) via a support spring (1003), the bottom of the negative pressure chamber is connected to the oil return pipe (8) via a branch pipe (1004), and a drain is installed on the negative pressure chamber. A pressure relief valve (1005) is installed on the branch pipe (1004), an electric-controlled one-way valve is installed on the bottom of the piston (1002), and the touch switch (1006) is electrically connected to the electric-controlled one-way valve and the pressure relief valve (1005). A pressing block (1007) is installed on the inner bottom of the cylinder body (1001), and the air chamber is connected to the top of the infiltration hood (3) through an air intake pipe (1008), and an exhaust pipe (1009) is installed on the air chamber.

4. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 3, characterized in that: The air intake pipe (1008) and the air exhaust pipe (1009) are both one-way pipes. In the initial state, the electrically controlled one-way valve is opened and the pressure relief valve (1005) is closed. When the touch switch (1006) is pressed, the electrically controlled one-way valve is controlled to be closed in stages and the pressure relief valve (1005) is controlled to be opened in stages.

5. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 3, characterized in that: The arc extinguishing secondary utilization component (11) comprises a transmission shaft (1101), a sliding hole (1102), a spiral track (1103), a connecting ring (1104), a driving ring wheel (1105), a driving shaft (1106), a rotating shaft (1107), a transmission wheel (1108), a transmission belt (1109) and a fan blade (1110); A transmission shaft (1101) is mounted on the piston (1002); a sliding hole (1102) is formed on the top of the cylinder body (1001); the transmission shaft (1101) passes through the sliding hole (1102); a spiral track (1103) is formed on the transmission shaft (1101); a connecting ring (1104) is mounted on the top of the cylinder body (1001); a driving ring wheel (1105) is rotatably mounted on the connecting ring (1104); and the driving ring wheel (1105) is rotatably mounted on the connecting ring (1104). 05) is rotatably mounted with a drive shaft (1106), the drive shaft (1106) is slidably inserted in the spiral track (1103), a rotating shaft (1107) is rotatably mounted on the top of the cabinet (1), a transmission wheel (1108) is mounted on the upper end of the rotating shaft (1107), a transmission belt (1109) is sleeved on the transmission wheel (1108) and the driving ring wheel (1105), and a fan blade (1110) is mounted on the lower end of the rotating shaft (1107).

6. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 5, characterized in that: Two groups of air inlets (1111) are symmetrically provided on both sides of the upper part of the cabinet (1), and two groups of heat dissipation ports (1112) are symmetrically provided on both sides of the lower part of the cabinet (1), and filters (1113) are installed in the air inlets (1111) and the heat dissipation ports (1112).

7. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 5, characterized in that: The arc extinguishing three-stage utilization component (12) comprises an elliptical wheel (1201), a first slideway (1202), a first slider (1203), a return spring (1204), a linkage plate (1205), a second slideway (1206), a second slider (1207), a push-pull plate (1208), a connecting rod (1209) and a wiping plate (1210); An elliptical wheel disc (1201) is installed at the upper end of the transmission wheel (1108); two groups of first slideways (1202) are installed symmetrically on the top of the cabinet (1); first sliders (1203) are slidably installed in the two groups of first slideways (1202); the first sliders (1203) are connected to the first slideways (1202) via return springs (1204); a linkage plate (1205) is installed on the first slider (1203); the linkage plate (1205) is in contact with the outer contour of the elliptical wheel disc (1201); and two symmetrical openings are provided on the top of the cabinet (1). There are two groups of second slideways (1206), and two second sliders (1207) are slidably installed in the two groups of second slideways (1206). The two second sliders (1207) are connected to the linkage plate (1205) on the same side through a push-pull plate (1208), and the two ends of the push-pull plate (1208) are hinged to the second slider (1207) and the linkage plate (1205). The second slider (1207) is installed with a wiping plate (1210) through a connecting rod (1209), and the wiping plate (1210) is in contact with the filter screen (1113) on the air inlet (1111).

8. A power distribution cabinet for a power distribution station with an arc extinguishing function according to claim 7, characterized in that: A ball groove (1211) is provided on one side of the linkage plate (1205) away from the push-pull plate (1208), a ball (1212) is rotatably mounted in the ball groove (1211), and the ball (1212) is in point contact with the outer contour of the elliptical wheel (1201).

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