JP2021078336A - Outdoor switch box - Google Patents

Abstract

To provide an outdoor switch box with a drip-proof and moisture-proof structure.SOLUTION: An outdoor switch box contains an outer shell, in which the switch box is provided. A fiber layer is provided between the switch box and the outer shell. No influence occurs in the outer shell even if the switch box is in an electric leakage because the fiber layer does not conduct a power. A removing moisture structure is provided in the outer shell. The removing moisture structure can avoid that the fiber layer becomes a conductor due to the reception of moisture by removing moisture with a removing moisture agent while absorbing an air in the fiber layer. A protection circuit is provided in the outer shell, and the protection circuit can transmit an electric energy of the switch box. When coming across lightning stroke, a current transmitted in the protection circuit is increased immediately, and the switch box can be protected by automatically disconnecting the circuit.SELECTED DRAWING: Figure 1

Description

The present invention deals with the field of distribution boxes, and particularly relates to distribution boxes for outdoor use.

Nowadays, electricity is available even in many remote areas. However, the demand for electricity supply in these regions is different from that in urban areas, and for normal power supply, it is necessary to adjust the current and voltage by arranging specialized distribution boxes. The problem is that these distribution boxes are basically placed on utility poles, which is inconvenient to maintain and easily affected by the weather. Rainwater may enter the distribution box and cause a short circuit. Therefore, the invention of the present application was devised.

Chinese Patent Application Publication No. 106451102

Outdoor distribution boards are inconvenient to maintain, are susceptible to weather, and rainwater can enter the distribution board and cause a short circuit.

The outdoor power distribution box described in the present application includes an outer shell, a power distribution box is provided in the outer shell, a fiber layer is provided between the power distribution box and the outer shell, and the fibers are provided. Since the layer cannot conduct electricity, the outer shell is not affected even if the distribution box leaks electricity, a dehumidifying configuration is provided in the outer shell, and the dehumidifying configuration absorbs air in the fiber layer. Further, by dehumidifying with a dehumidifying agent, it is possible to prevent the fiber layer from receiving moisture and becoming a conductor, a protection circuit is provided in the outer shell, and the protection circuit uses the electric energy of the distribution box. When it can be sent and is hit by a lightning strike, the current sent in the protection circuit increases instantly, where the protection circuit can automatically disconnect the circuit to protect the distribution box and above the outer shell. Is provided with a rain shield, the outer shell can protect the outer shell from rainwater, rainwater does not invade the outer shell and affect the work of the distribution box, and an arc-shaped bottom plate is provided at the lower end of the outer shell. Are in contact with each other, and the arc-shaped bottom plate and the rain shield are fixedly connected by a connecting plate, and a windproof configuration is provided in the arc-shaped bottom plate. A support rod is fixedly connected to the right end of the arc-shaped bottom plate without being excessively rotated and dropped, a support screw hole is provided in the support rod, and the support screw hole is described from the left-right direction. The support rod penetrates the support rod, and the support rod can be fixed to the electric pole by inserting a bolt into the support screw hole, and the rotation shaft is fixedly connected to the right end of the outer shell, and the rotation shaft is connected to the connecting plate. A fixed block is provided on the right side of the rotating shaft, a torsion spring groove that opens to the left is formed in the fixed block, and the rotating shaft is twisted to the right. It extends to the spring groove and is rotatably connected to the fixing block, fixed plates are fixedly connected to both front and rear ends of the torsion spring groove, and fixing screw holes are provided in the fixing plate. The fixing screw hole penetrates the fixing plate from the front-rear direction, and the fixing plate can be fixed to the electric pole by inserting a bolt into the fixing screw hole, and the two bolts are the support screw hole and the fixing screw hole, respectively. It has excellent stability because it is fixed to the electric pole in a relative vertical direction through the wire.

Preferably, the right end of the rotating shaft and the right inner wall of the torsion spring groove are fixedly connected by the repositioning torsion spring, and when a strong wind blows the outer shell, the rotating shaft rotates in conjunction with the repositioning. The torsion spring is twisted, where the area of the outer shell facing the wind is reduced, that is, the wind force received by the outer shell is weakened, and when the wind stops, the elasticity of the repositioning torsion spring causes the outer shell to rotate. Becomes vertical.

Advantageously, the windbreak configuration includes an arcuate groove formed symmetrically in the arcuate bottom plate that opens upward, and a windbreak slider is slidably provided in the arcuate groove. The windbreak slider is in contact with the front end and the rear end of the outer shell, respectively, and the end of the windbreak slider close to the center of symmetry and the inner wall of the arcuate groove close to the center of symmetry are fixed by a connecting spring. When they are connected and a strong wind blows and rotates the outer shell, the windbreak slider on the corresponding side is pushed and slides, pulls the connecting spring on the corresponding side, and the connecting spring is rotated by the outer shell. When the cushioning effect is achieved and the wind stops, the windbreak slider slides due to the elasticity of the connecting spring, assisting the outer shell, and rotating in the reverse direction so as to be in a vertical state.

Advantageously, the protection circuit includes a concave groove formed in the outer shell that opens to the right, and a sliding conductive block is slidably provided in the concave groove, and the sliding The conductive block and the power distribution box are connected by a main electric wire, a fixed conductive block is fixed in the connecting plate, an output electric wire is connected to the right end of the fixed conductive block, and the sliding conductive block is fixed. Upon contact with the conductive block, the power distribution box can transmit power via the main electric wire, the sliding conductive block, the fixed conductive block, and the output electric wire, and a wire groove is formed on the upper inner wall of the concave groove, and the wire is formed. The groove is provided with two connecting conductors, the connecting conductors are electrically connected to the main wire, the connecting conductors are electrically connected by a fuse, the fuse is covered by a protective rubber layer, and the protection is provided. A traction wire is wound around the rubber layer, a spring groove is formed on the lower inner wall of the wire groove so as to communicate with the wire groove, and the lower inner wall of the spring groove communicates with the concave groove. A sliding obstruction plate is slidably provided in the spring groove, one end of the traction wire is fixedly connected to the sliding obstruction plate, and the upper end of the sliding obstruction plate and the spring groove It is fixedly connected to the upper inner wall by a compression spring, a position limiting groove that opens to the left is formed in the sliding obstruction plate, and a sliding guide groove is formed in the spring groove on the left inner wall of the spring groove. A position limiting block is slidably provided in the sliding guide groove, and the right end of the position limiting block slides into the position limiting groove to cause the sliding obstruction plate. The position can be fixed, the lower end of the position limiting block is fixedly connected to the sliding conductive block, and when a lightning strike occurs, the current passing through the main electric wire suddenly increases, and then the connecting conductor and the fuse The current passing through the cable also suddenly increases, so that the fuse blows, and the elasticity of the spring groove pushes the sliding obstruction plate downward and slides the position limiting block to the left. By sliding the sliding conductive block to the left, the sliding conductive block is separated from the fixed conductive block, where the sliding interfering plate slides into the concave groove to close the concave groove and closes the concave groove. Can be avoided.

Preferably, the front and rear inner walls of the wire groove are connected by two rotatable guide rollers, and the guide rollers can guide the tow line.

Preferably, the left end of the position limiting block and the left inner wall of the sliding guide groove are fixedly connected by a repositioning spring, and at the time of maintenance, the fuse is newly connected to the connecting conductor, and the traction wire is reconnected. By winding it around a protective rubber layer and pulling the sliding obstruction plate to raise it, the position limiting block is fixed in the position limiting groove by the elasticity of the repositioning spring, and the sliding conductive block is fixed. It slides in conjunction with each other and is reconnected with the fixed conductive block.

Advantageously, the dehumidifying configuration includes a gas accommodating space provided on the upper inner wall of the wire groove, the dehumidifying agent is provided in the gas accommodating space, and gas passages are provided on the upper and lower inner walls of the gas accommodating space. Provided so as to communicate with the gas accommodating space, an bleeding pump is fixed between the gas passages, the bleeding pump can extract air from the fiber layer, and then air is passed through the gas passage above. Moisture sent to the gas containing space and contained in the air by the dehumidifying agent is removed, and then the dehumidified air is returned to the fiber layer by the gas passage below and the bleeding pump, that is, the fiber layer. Can be avoided from getting damp.

The present invention has the following positive effects: The present invention is fixed to a utility pole in the field by bolts that are relatively vertical, has excellent stability, avoids leakage due to rainwater infiltration and moisture, and can be dropped by strong winds. In addition, the circuit can be automatically disconnected in the event of a lightning strike, improving overall safety, and maintenance of the protection circuit is easy and convenient.

In order to explain the present invention in detail and conveniently explain the present invention together with FIGS. 1 to 5 below, each direction described in the present application is defined as follows: FIG. 1 is a front view of the present invention and is described in the present application. Each of the described directions is based on the observation direction in FIG.

FIG. 1 is a schematic diagram of the overall configuration of the present invention. FIG. 2 is a schematic configuration diagram from the direction AA in FIG. FIG. 3 is an enlarged schematic view of part B in FIG. FIG. 4 is a schematic configuration diagram from the CC direction in FIG. FIG. 5 is an enlarged schematic view of part D in FIG.

The outdoor switchboard described in the present application includes an outer shell 14, a switchboard 12 is provided in the outer shell 14, and a fiber layer 13 is provided between the switchboard 12 and the outer shell 14. Is provided, and the fiber layer 13 cannot conduct electricity. Therefore, even if the distribution box 12 leaks electricity, the outer shell 14 is not affected, and the dehumidifying configuration 102 is provided in the outer shell 14 to provide the dehumidifying configuration. The 102 absorbs the air in the fiber layer 13 and dehumidifies it with the dehumidifying agent 31 so that the fiber layer 13 can be prevented from receiving moisture and becoming a conductor, and the outer shell 14 is protected. A circuit 100 is provided, and the protection circuit 100 can transmit the electric energy of the distribution box 12, and when a lightning strike occurs, the current transmitted in the protection circuit 100 increases instantaneously, where the protection circuit 100 automatically increases. By disconnecting the circuit, the distribution box 12 can be protected, a rain shelter 15 is provided above the outer shell 14, the rain shelter 15 can protect the outer shell 14 from rainwater, and the rainwater is outside the outer shell 14. The arc-shaped bottom plate 11 is in contact with the lower end of the outer shell 14 without invading the shell 14 and affecting the work of the distribution box 12, and the arc-shaped bottom plate 11 and the rain avoidance 15 are connected to the connecting plate 22. The arc-shaped bottom plate 11 is provided with a windproof structure 101, and the windproof structure 101 prevents the outer shell 14 from being excessively rotated and dropped even in the event of a strong wind. A support rod 23 is fixedly connected to the right end of the bottom plate 11, a support screw hole 24 is provided in the support rod 23, and the support screw hole 24 penetrates the support rod 23 from the left and right directions. The support rod 23 can be fixed to the electric pole by inserting a bolt into the support screw hole 24, the rotation shaft 16 is fixedly connected to the right end of the outer shell 14, and the rotation shaft 16 is connected to the connection plate 22. It is rotatably connected, a fixed block 17 is provided on the right side of the rotating shaft 16, a torsion spring groove 18 opening to the left is formed in the fixed block 17, and the rotating shaft 16 is on the right. It extends toward the torsion spring groove 18 and is rotatably connected to the fixing block 17, and fixing plates 20 are fixedly connected to both front and rear ends of the torsion spring groove 18 and inside the fixing plate 20. Is provided with a fixing screw hole 19, and the fixing screw hole 19 penetrates the fixing plate 20 from the front-rear direction, and the fixing plate 20 can be fixed to the electric pole by inserting a bolt into the fixing screw hole 19. The two bolts are electrically perpendicular to each other through the support screw hole 24 and the fixing screw hole 19, respectively. Since it is fixed to a pillar, it has excellent stability.

Advantageously, the right end of the rotating shaft 16 and the right inner wall of the torsion spring groove 18 are fixedly connected by the repositioning torsion spring 21, and the rotating shaft 16 is interlocked by the strong wind blowing the outer shell 14. And rotate to twist the repositioning torsion spring 21, where the area of the outer shell 14 facing the wind is reduced, that is, the wind force received by the outer shell 14 is weakened, and when the wind stops, the repositioning torsion spring Due to the elasticity of 21, the outer shell 14 rotates and becomes a vertical state.

The windbreak configuration 101 includes an arcuate groove 25 formed in the arcuate bottom plate 11 so as to be symmetrical in the front-rear direction and opens upward, and a windbreak slider 27 is slidably provided in the arcuate groove 25. The windbreak slider 27 is in contact with the front end and the rear end of the outer shell 14, respectively, and the end of the windbreak slider 27 close to the center of symmetry and the inner wall of the arcuate groove 25 close to the center of symmetry are connected springs. 26 is fixedly connected, and when a strong wind blows and rotates the outer shell 14, the windbreak slider 27 on the corresponding side is pushed and slides, pulls the connecting spring 26 on the corresponding side, and connects. The spring 26 acts as a buffer against the rotation of the outer shell 14, and when the wind stops, the elasticity of the connecting spring 26 causes the windbreak slider 27 to slide and assist the outer shell 14 to be in a vertical state. Reverse rotation to.

The protection circuit 100 includes a concave groove 35 formed in the outer shell 14 that opens to the right, and a sliding conductive block 37 is slidably provided in the concave groove 35, and the sliding The conductive block 37 and the power distribution box 12 are connected by a main electric wire 33, a fixed conductive block 38 is fixed in the connecting plate 22, and an output electric wire 32 is connected to the right end of the fixed conductive block 38. When the sliding conductive block 37 comes into contact with the fixed conductive block 38, the power distribution box 12 can transmit power via the main electric wire 33, the sliding conductive block 37, the fixed conductive block 38, and the output electric wire 32, and the concave A wire groove 47 is formed on the upper inner wall of the groove 35, two connecting conductors 34 are provided in the wire groove 47, and the connecting conductor 34 is electrically connected to the main electric wire 33 so that the connecting conductor 34 can be energized. Is electrically connected by a fuse 49, the fuse 49 is covered by a protective rubber layer 48, a traction wire 46 is wound around the protective rubber layer 48, and a spring groove 45 is formed on the lower inner wall of the wire groove 47. Is formed so as to communicate with the wire groove 47, the lower inner wall of the spring groove 45 communicates with the concave groove 35, and the sliding obstruction plate 42 can slide in the spring groove 45. One end of the traction wire 46 is fixedly connected to the sliding obstruction plate 42, and the upper end of the sliding obstruction plate 42 and the upper inner wall of the spring groove 45 are fixedly connected by a compression spring 43. A position limiting groove 41 that opens to the left is formed in the sliding obstruction plate 42, and a sliding guide groove 36 is formed on the left inner wall of the spring groove 45 so as to communicate with the spring groove 45. A position limiting block 40 is slidably provided in the sliding guide groove 36, and the right end of the position limiting block 40 slides into the position limiting groove 41 to position the sliding obstruction plate 42. It can be fixed, and the lower end of the position limiting block 40 is fixedly connected to the sliding conductive block 37, and when it is hit by a lightning strike, the current passing through the main electric wire 33 suddenly increases, and then the connecting conductor 34 and the connecting conductor 34 and the said. The current passing through the fuse 49 also suddenly increases, so that the fuse 49 is blown, and the elasticity of the spring groove 45 pushes the sliding obstruction plate 42 downward and slides downward, so that the position limiting block By sliding 40 to the left, the sliding conductive block 37 is slid to the left and separated from the fixed conductive block 38, where the sliding obstruction plate 42 slides into the concave groove 35. The concave groove 35 is closed, and the arrangement Damage to the electric box 12 can be avoided.

Advantageously, the front and rear inner walls of the wire groove 47 are connected by two rotatable guide rollers 44, which can guide the traction line 46.

Advantageously, the left end of the position limiting block 40 and the left inner wall of the sliding guide groove 36 are fixedly connected by a repositioning spring 39, and at the time of maintenance, the fuse 49 is newly connected to the connecting conductor 34. Further, the traction wire 46 is wound around the protective rubber layer 48 again, and the sliding obstruction plate 42 is pulled and raised, so that the position limiting block 40 is formed by the position limiting groove 41 due to the elasticity of the repositioning spring 39. The sliding conductive block 37 is interlocked and slid, and is reconnected with the fixed conductive block 38.

The dehumidifying configuration 102 includes a gas accommodating space 30 provided in the upper inner wall of the line groove 47, the dehumidifying agent 31 is provided in the gas accommodating space 30, and gas passages 29 are provided in the upper and lower inner walls of the gas accommodating space 30. Is provided so as to communicate with the gas accommodating space 30, an bleeding pump 28 is fixed between the gas passages 29, and air can be extracted from the fiber layer 13 by the bleeding pump 28, and then air is blown up. It is sent to the gas accommodating space 30 through the gas passage 29, the water contained in the air is removed by the dehumidifying agent 31, and subsequently the dehumidified air is removed by the gas passage 29 and the bleeding pump 28 below. , The fiber layer 13 is returned, that is, the fiber layer 13 can be prevented from becoming damp.

The operating procedure of the present invention is as follows.

First, the outer shell 14 is in the vertical state, the traction wire 46 tightens the fuse 49, the sliding obstruction plate 42 is completely housed in the spring groove 45, the compression spring 43 is in the compressed state, and the position limiting block 40 is in the position. The position is fixed by entering the limiting groove 41, the sliding conductive block 37 is connected to the trowel conductive block 38, and by inserting bolts into the fixing screw hole 19 and the support screw hole 24, the arc-shaped bottom plate 11, the outer shell 14, The rain avoidance 15 is fixed to a utility pole.

To use, the power distribution box 12 transmits via the main wire 33, the sliding conductive block 37, the fixed conductive block 38, and the output wire 32, the bleeding pump 28 extracts air from the fiber layer 13, followed by the air. It is sent to the gas storage space 30 through the upper gas passage 29, the water contained in the air is removed by the dehumidifying agent 31, and the dehumidified air is subsequently removed by the lower gas passage 29 and the bleeding pump 28 to form the fiber layer 13. That is, the fiber layer 13 is prevented from becoming damp, the rain avoidance 15 can protect the outer shell 14 from rainwater, and the rainwater does not invade the outer shell 14 and affect the work of the power distribution box 12.
When a strong wind is encountered, the strong wind blows the outer shell 14, so that the rotating shaft 16 rotates in conjunction with each other and twists the repositioning torsion spring 21, where the area where the outer shell 14 faces the wind is reduced, and the outer shell is also reduced. Since the outer shell 14 pulls the one connecting spring 26 by pushing and sliding the one windbreak slider 27 and limits the maximum rotation angle of the outer shell 14 by the radian of the arcuate groove 25, the outer shell 14 falls. However, when the wind stopped, the elasticity of the connecting spring 26 and the repositioning spring 21 caused the rotating shaft 16 and the outer shell 14 to rotate in the opposite direction, and the outer shell 14 eventually returned to the initial state.
In the event of a lightning strike, the current passing through the main wire 33 suddenly increases, and then the current passing through the connecting conductor 34 and the fuse 49 also sharply increases, so that the fuse 49 blows and the elasticity of the spring groove 45 here. The sliding obstruction plate 42 is pushed and slides downward, and by sliding the position limiting block 40 to the left, the sliding conductive block 37 is slid to the left and separated from the fixed conductive block 38. Here, the sliding obstruction plate 42 slides into the concave groove 35 to close the concave groove 35, and damage to the power distribution box 12 can be avoided.
At the time of maintenance, a new fuse 49 is connected to the connecting conductor 34, the traction wire 46 is wound around the protective rubber layer 48 again, and the sliding obstruction plate 42 is pulled here to raise the fuse. The limiting block 40 is fixed by entering the position limiting groove 41, and the sliding conductive block 37 slides in conjunction with the fixed conductive block 38 and is reconnected with the fixed conductive block 38.

According to the above method, an engineer in the field can make various modifications according to the working situation within the scope of the present invention.

Claims (7)

A distribution box is provided in the outer shell, including an outer shell, and a fiber layer is provided between the distribution box and the outer shell.
A dehumidifying structure is provided in the outer shell, and the dehumidifying structure can absorb air in the fiber layer and dehumidify with a dehumidifying agent.
A protection circuit is provided in the outer shell, and the protection circuit can transmit the electric energy of the distribution box.
A rain shield is provided above the outer shell, the outer shell can protect the outer shell from rainwater, and an arc-shaped bottom plate is in contact with the lower end of the outer shell. It is fixedly connected by a connecting plate, and a windproof configuration is provided in the arc-shaped bottom plate. Due to the windproof configuration, the outer shell is not excessively rotated and dropped even in the event of a strong wind.
A support rod is fixedly connected to the right end of the arc-shaped bottom plate, a support screw hole is provided in the support rod, and the support screw hole penetrates the support rod from the left-right direction.
A rotating shaft is fixedly connected to the right end of the outer shell, the rotating shaft is rotatably connected to the connecting plate, and a fixed block is provided on the right side of the rotating shaft. Is formed with a torsion spring groove that opens to the left, the rotating shaft extends to the right in the torsion spring groove and is rotatably connected to the fixing block, and is rotatably connected to the front and rear ends of the torsion spring groove. An outdoor power distribution box characterized in that a fixing plate is fixedly connected, a fixing screw hole is provided in the fixing plate, and the fixing screw hole penetrates the fixing plate from the front-rear direction. The outdoor power distribution box according to claim 1, wherein the right end of the turning shaft and the right inner wall of the torsion spring groove are fixedly connected by a repositioning torsion spring. The windbreak configuration includes an arcuate groove formed in the arcuate bottom plate so as to be symmetrical in the front-rear direction, and a windbreak slider is slidably provided in the arcuate groove. It is in contact with the front and rear ends of the outer shell.
The outdoor power distribution according to claim 1, wherein the end of the windbreak slider close to the center of symmetry and the inner wall of the arcuate groove close to the center of symmetry are fixedly connected by a connecting spring. box. The protection circuit includes a concave groove formed in the outer shell that opens to the right, and a sliding conductive block is slidably provided in the concave groove, and the sliding conductive block and the power distribution are provided. It is connected to the box by a main electric wire, a fixed conductive block is fixed in the connecting plate, and an output electric wire is connected to the right end of the fixed conductive block.
A wire groove is formed on the upper inner wall of the concave groove, two connecting conductors are provided in the wire groove, the connecting conductor is connected to the main electric wire so as to be energized, and the connecting conductor can be energized by a fuse. Connected to
The fuse is covered with a protective rubber layer, a traction wire is wound around the protective rubber layer, and a spring groove is formed on the lower inner wall of the wire groove so as to communicate with the wire groove. The lower inner wall communicates with the concave groove, a sliding obstruction plate is slidably provided in the spring groove, and one end of the traction line is fixedly connected to the sliding obstruction plate.
The upper end of the sliding obstruction plate and the upper inner wall of the spring groove are fixedly connected by a compression spring.
A position limiting groove that opens to the left is formed in the sliding obstruction plate, and a sliding guide groove is formed on the left inner wall of the spring groove so as to communicate with the spring groove. A position limiting block is slidably provided in the groove, the right end of the position limiting block can slide into the position limiting groove to fix the position of the sliding obstruction plate, and the lower end of the position limiting block is the said. The outdoor power distribution box according to claim 1, wherein the power distribution box is fixedly connected to a sliding conductive block. The outdoor power distribution box according to claim 4, wherein the front and rear inner walls of the wire groove are connected by two rotatable guide rollers, and the guide rollers can guide the tow line. The outdoor power distribution box according to claim 4, wherein the left end of the position limiting block and the left inner wall of the sliding guide groove are fixedly connected by a repositioning spring. The dehumidifying configuration includes a gas accommodating space provided on the upper inner wall of the line groove, the dehumidifying agent is provided in the gas accommodating space, and gas passages communicate with the gas accommodating space on the upper and lower inner walls of the gas accommodating space. The outdoor power distribution box according to claim 4, wherein an air extraction pump is fixed between the gas passages.

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