CN111181036A

CN111181036A - High-voltage distribution box for power equipment

Info

Publication number: CN111181036A
Application number: CN202010197624.2A
Authority: CN
Inventors: 杨时雷; 吴若望; 滕佳敏; 陈国磊; 鲍信超; 朱建国; 徐钰栋; 周滨莉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-05-19
Also published as: CN110048330B; CN111193209A; CN110048330A

Abstract

The invention discloses a high-voltage distribution box for power equipment, which comprises a box body, a box cover hinged on the side wall of the box body and a handle arranged on the box cover, wherein the box cover is provided with a lock catch, the handle is provided with a reset switch matched with the lock catch, the bottom of the box body is provided with a first connecting plate, the first connecting plate is provided with a first baffle plate, the first baffle plate is arranged at two sides of the box body, the top of the box body is provided with a top plate, the bottom of the top plate is provided with a second baffle plate, the side wall of the box body is provided with a plurality of first through holes, the second baffle plate is provided with a second through hole matched with the first through holes, and when water is accumulated on the top plate, the second baffle plate moves downwards to enable the first through holes and the; the lifting motion of the second baffle is controlled through the gravity action of rainwater, so that the first through hole is opened and closed as required, the waterproof effect of the box body is guaranteed while the heat dissipation of the box body is not influenced, and the heat dissipation and waterproof problems of the box body are solved simultaneously.

Description

High-voltage distribution box for power equipment

Technical Field

The invention belongs to the technical field of power equipment, and particularly relates to a high-voltage distribution box for power equipment.

Background

The high-voltage power distribution cabinet is an electrical appliance product which is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like, and has a voltage grade of 3.6-550 kV, and mainly comprises a high-voltage circuit breaker, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like. The high-voltage switch manufacturing industry is an important component of the power transmission and transformation equipment manufacturing industry and plays a very important role in the whole power industry. High voltage distribution cabinet often can not avoid receiving the invasion and attack of water, if inside water instils into or the slope entering switch board perpendicularly from the top of switch board, the component of switch board will be soaked in aqueous to lead to the unable normal operating of electrical equipment short circuit. Instil into perpendicularly or the slope instils into in order to solve the rainwater from the top of switch board, design the whole body of switch board for seal structure among the prior art, though solved the waterproof problem of switch board to a certain extent, but neglected the heat dissipation problem of switch board. Yet another very difficult problem to solve is: when rainstorm weather, the ponding on ground is a lot of, and the inside of switch board is entered into through the ventilation louvre of switch board or cabinet door clearance very easily, leads to the inside circuit short circuit of switch board.

Therefore, the high-voltage power distribution cabinet seems to be difficult to solve the two problems of heat dissipation and water prevention at the same time, good water prevention is difficult to achieve by solving the heat dissipation problem, and the problem of heat dissipation seems to be difficult to solve by solving the water prevention problem.

Disclosure of Invention

The invention provides the high-voltage distribution box with the functions of heat dissipation and water prevention in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a high-voltage distribution box for power equipment comprises a box body, a box cover hinged on the side wall of the box body and a handle arranged on the box cover, wherein the box cover is provided with a lock catch, the handle is provided with a reset switch matched with the lock catch, the bottom of the box body is provided with a first connecting plate, the first connecting plate is provided with a first baffle plate, the first baffle plate is arranged on two sides of the box body, the top of the box body is provided with a top plate, the bottom of the top plate is provided with a second baffle plate, the side wall of the box body is provided with a plurality of first through holes, the second baffle plate is provided with a second through hole matched with the first through holes, and when water is accumulated on the top plate, the second baffle plate moves downwards to enable the first through holes and the second; when the distribution box normally operates, the first through hole is aligned with the second through hole, so that the inside of the distribution box is communicated with the outside, air can conveniently flow in the distribution box, a heat dissipation effect is achieved on the inside of the distribution box, and a circuit is protected; when the rain is met, rainwater drops on the top plate, so that the top plate moves downwards under the action of the gravity of the rainwater, the top plate pushes the second baffle plate to move downwards, the positions of the first through hole and the second through hole are staggered, and the second baffle plate plays a role in sealing the first through hole, so that the rainwater is prevented from permeating into the box body from the first through hole to damage circuit equipment; the lifting motion of the second baffle is controlled through the gravity action of rainwater, so that the first through hole is opened and closed as required, the waterproof effect of the box body is ensured while the heat dissipation of the box body is not influenced, and the heat dissipation and waterproof problems of the box body are solved; when the rain-proof box is in heavy rain, rainwater splashed from the bottom is blocked by the first connecting plate, so that a small amount of water is splashed onto the surface of the box body, and the phenomenon that excessive water is polluted on the surface of the box body and permeates into the box body from a gap of the box body is avoided; under the mutually supporting of first baffle and roof, reduce the rainwater and drop the volume on the box lateral wall, make the water column of attached to the small part on the box lateral wall, promote the reliability that the second baffle is sealed to first through-hole, avoid the rainwater to enter into and cause the damage to the circuit in the box.

A water storage tank is arranged on the top plate, a connecting pipe is arranged at the bottom of the top plate, a second connecting plate is arranged at the bottom of the connecting pipe, a second baffle is arranged at the bottom of the second connecting plate, a first movable cavity and a second movable cavity are arranged on the side wall of the box body, the second connecting plate is arranged in the first movable cavity, and the second baffle is arranged in the second movable cavity; rainwater is collected in the water storage tank when falling on the top plate, so that the gravity of the top plate is increased, the top plate is pressed to move downwards under the gravity of the rainwater, the top plate pushes the second connecting plate to move downwards, the second baffles on two sides synchronously move downwards under the action of the second connecting plate, the first through hole on the side wall of the box body is sealed, and the rainwater is prevented from entering the box body from the first through hole; first activity chamber and second activity chamber provide the headspace for the motion of second connecting plate and second baffle, are convenient for play the control usefulness through the opening and shutting of second baffle to first through-hole, make the heat dissipation of box and waterproof compromise simultaneously, promote the reliability that the box used.

A first water conveying cavity is arranged in the second connecting plate, a second water conveying cavity communicated with the first water conveying cavity is arranged in the second baffle plate, the first water conveying cavity is communicated with the water storage tank through a connecting pipe, a supporting spring is arranged at the bottom of the second connecting plate, and the bottom of the supporting spring is arranged at the bottom of the first movable cavity; after rainwater is collected in the water storage tank, the rainwater in the water storage tank enters the first water conveying cavity through the connecting pipe, water flow in the first water conveying cavity enters the second water conveying cavity and flows out, and when the water flow flows out of the water conveying cavity, part of heat in the box body is taken away, so that the heat dissipation effect on the interior of the box body is achieved, and the phenomenon that the working temperature in the box body is overhigh due to the sealing of the first through hole is avoided; the water flow in the water storage cavity is emptied, meanwhile, the heat dissipation effect is achieved on the interior of the box body, and the collected water flow is reasonably utilized; when water flow in the water storage tank is discharged through the water delivery cavity, the weight of the top plate is reduced to be less than the elastic force of the supporting spring, the second connecting plate is pushed to move upwards under the action of the supporting spring, the second baffle is driven to move upwards, the first through hole is aligned with the second through hole, the box body is in a conduction state with the outside, and equipment in the box body is enabled to dissipate heat quickly.

A surrounding plate matched with the second through hole is arranged in the second water delivery cavity, a connecting block is arranged at the bottom of the second surrounding plate, a through hole matched with the connecting block is formed in the first connecting plate, a first cavity communicated with the second water delivery cavity is formed in the connecting block, and a third water outlet is formed in the side wall of the first cavity; the enclosing plate has a sealing effect on the second through hole, so that water flow in the second water conveying cavity cannot be directly discharged from the second through hole, the retention time of the water flow in the second water conveying cavity is prolonged, more heat in the box body is absorbed when the water flow flows in the second water storage tank, and the box body achieves a heat dissipation effect under the action of the water flow; the water flow in the second water conveying cavity moves into the first cavity under the action of gravity, so that the water flow is discharged from the third water discharge port, a complete passage is formed between the water reservoir and the first cavity, the water flow in the water reservoir is discharged, and the first through hole is opened again.

The bottom of the connecting block is provided with a blocking block, the blocking block is made of elastic materials, and the top of the blocking block is of a conical structure; when the first through hole is in an open state, the second connecting plate is positioned at the top of the first movable cavity, the connecting block is positioned in the through groove, the blocking block is in contact with the bottom of the first connecting plate, under the pressure action of the first connecting plate on the blocking block, the blocking block is deformed to block a gap between the through groove and the connecting block, and partial water flow is reserved in the second water conveying cavity to cooperate with the first through hole to cool the interior of the box body; when the first through hole is in a closed state, the second connecting plate pushes the second baffle to move downwards, so that the second baffle pushes the connecting block to extend out of the through groove, the blocking block is restored under the action of elasticity after not contacting with the first connecting plate, and the first water drainage port is positioned outside the through groove so as to discharge water flow in the second water delivery cavity; the rivers drip down the landing along the conical surface at sprue top when the sprue top, avoid rivers amasss on the sprue, promote the water-proof effects of box.

A guide pipe matched with the first through hole is arranged on the side wall of the box body, the first through hole is obliquely arranged, the outer side of the guide pipe is obliquely and upwards arranged, a third through hole is arranged on the side wall of the guide pipe, and a second through cavity communicated with the first through hole is arranged on one side of the second movable cavity; when the first through hole is in an open state, air enters the first through hole from the conduit, so that the interior of the box body is communicated with the outer side of the box body, and heat in the box body is taken away under the flowing of the air; through the arrangement of the third through hole, more air flow enters the guide pipe, so that the air flow entering the box body is increased, and the heat dissipation effect in the box body is further improved; when the first through hole is in a closed state, part of rainwater enters the second through cavity from the conduit, and the rainwater flows in the second through cavity and contacts with the inner wall of the second through cavity, so that the rainwater in the second through cavity is matched with the rainwater in the second water delivery cavity to play a role in heat dissipation in the box body, most of heat in the box body is taken away, and equipment in the box body is protected.

A chute is arranged at the bottom of the second through cavity, a first drainage port is arranged on the side wall of the second through cavity, and the first drainage port is arranged at the bottom end of the chute; a plurality of fourth through holes are formed in the first connecting plate, and the top of the first baffle is inclined to the box body; when flowing in the second through cavity, the rainwater moves to the bottom of the second through cavity under the action of gravity, and the rainwater at the bottom of the second through cavity flows downwards along the surface of the chute, so that the rainwater in the second through cavity is discharged from the first water discharge port, and the rainwater is prevented from accumulating in the second through cavity; rainwater discharged from the first water discharging port is discharged onto the first connecting plate, and the rainwater on the first connecting plate falls off from the connecting plate through the fourth through hole, so that the rainwater in the second through cavity is completely discharged from the box body; after the first baffle is obliquely arranged, the top of the first baffle is located below the top plate, most of rainwater is shielded through the top plate, the amount of rainwater falling on the first connecting plate is reduced, the rainwater amount falling on the side wall of the box body is reduced, and the rainwater is prevented from permeating into the box body and playing a good waterproof effect on the box body.

A third baffle matched with the first drainage port is arranged on the side wall of the box body, one end of the third baffle is hinged to the side wall of the box body, and the bottom of the third baffle is higher than that of the first drainage port; when the third baffle is not stressed, the side wall of the third baffle is in contact with the side wall of the box body, the first drainage port is sealed under the action of the third baffle, the caliber of the first drainage port is reduced, most of water drops splashed from the bottom are blocked under the action of the first connecting plate, a small part of water drops move to the top of the first connecting plate through the fourth through hole, the water drops moving to the first connecting plate are blocked under the action of the third baffle, the dynamic potential energy of the water drops is offset, and the water drops cannot enter the second through hole, so that rainwater is prevented from permeating into the box body; when water flow is discharged from the second through cavity, the water flow pushes the third baffle plate to enable the third baffle plate to rotate around the link point, so that the first water discharge port is in an open state, the water flow in the second through cavity is directly discharged from the first through hole, and the third baffle plate is prevented from blocking the water discharge work of the second through cavity.

A second water outlet is formed in the side wall of the water storage tank, a mounting plate is arranged in the water storage tank, a stop block matched with the second water outlet is arranged at the bottom of the mounting plate, a sliding groove is formed in the bottom of the mounting plate, a sliding block matched with the sliding groove is arranged at the top of the stop block, a sealing film is arranged on the mounting plate, an arc-shaped elastic sheet is arranged below the sealing film, and two ends of the arc-shaped elastic sheet are respectively connected with the stop block; when the water storage tank is not filled with water, the second water outlet is in an open state, and the stop block is not contacted with the side wall of the second water outlet; when the water storage tank is full of water, rainwater exerts pressure on the sealing membrane to enable the sealing membrane to move downwards, the sealing membrane pushes the arc-shaped elastic sheet to deform, the arc-shaped elastic sheet pushes the stop block to move towards the two sides of the water storage tank, the second water outlet is sealed under the action of the stop block, rainwater in the water storage tank can be discharged from the water delivery cavity only, and heat in the tank body can be taken away under the action of water flow; when rainwater in the water storage tank is discharged to a certain degree, the weight of the rainwater in the water storage tank is smaller than the elastic force of the supporting spring, and meanwhile, the weight of the rainwater is also smaller than the elastic force of the arc-shaped elastic sheet, so that the arc-shaped spring automatically resets under the action of the elastic force, the stop block is driven to move towards the middle part of the water storage tank, and the second water outlet is in an open state, so that residual rainwater in the water storage tank is discharged, and the rainwater is prevented from being detained in the water storage tank.

The handle is provided with a third movable cavity, the reset switch is arranged in the third movable cavity, a limit spring matched with the reset switch is arranged in the third movable cavity, the handle is provided with an indicator lamp, the top of the third movable cavity is provided with a first contact, and the reset switch is provided with a second contact; when the box cover is opened, the lock catch is in an open state, the reset switch is in a bounce state, the first contact and the second contact are in contact under the action of the limiting spring, the electric quantity of the indicator light is used for prompting an operator that the lock catch is in the open state, the operator is prevented from misjudging whether the box cover is in the open state or the closed state, and the use safety of the distribution box is ensured; when the lock catch is closed, the combined switch is arranged at the bottom of the third movable cavity, so that the first contact block and the second contact block are in a disconnected state, and the indicator light is turned off to inform an operator that the box cover is closed.

The invention has the following advantages: the lifting motion of the second baffle is controlled through the gravity action of rainwater, so that the first through hole is opened and closed as required, the waterproof effect of the box body is guaranteed while the heat dissipation of the box body is not influenced, and the heat dissipation and waterproof problems of the box body are solved simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a first cross-sectional view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of fig. 2 at B.

FIG. 5 is a second cross-sectional view of the present invention.

Fig. 6 is an enlarged view of fig. 5 at C.

Fig. 7 is an enlarged view of fig. 5 at D.

Fig. 8 is an enlarged view of fig. 5 at E.

Fig. 9 is a third schematic cross-sectional view of the present invention.

Fig. 10 is an enlarged view of fig. 9 at F.

Detailed Description

As shown in fig. 1-10, a high voltage distribution box for power equipment comprises a box body 1, a box cover 11 hinged on a side wall of the box body 1, and a handle 12 arranged on the box cover 11, a lock catch is arranged on the box cover 11, a reset switch 121 matched with the lock catch is arranged on the handle 12, the bottom of the box body 1 is provided with a first connecting plate 2, the first connecting plate 2 is provided with two first baffle plates 21, the two first baffle plates 21 are respectively arranged at two sides of the box body 1, the top of the box body 1 is provided with a top plate 3, the bottom of the top plate 3 is provided with two second baffles 33, the side walls of the two sides of the box body 1 are respectively provided with a plurality of first through holes, the second baffle 33 is provided with a second through hole 332 matched with the first through hole, when water accumulates on the top plate 3, the second baffle plate 33 moves downwards to enable the first through hole and the second through hole 332 to be staggered; when the distribution box normally operates, the first through hole is aligned with the second through hole, so that the inside of the distribution box is communicated with the outside, air can conveniently flow in the distribution box, a heat dissipation effect is achieved on the inside of the distribution box, and a circuit is protected; when the rain is met, rainwater drops on the top plate, so that the top plate moves downwards under the action of the gravity of the rainwater, the top plate pushes the second baffle plate to move downwards, the positions of the first through hole and the second through hole are staggered, and the second baffle plate plays a role in sealing the first through hole, so that the rainwater is prevented from permeating into the box body from the first through hole to damage circuit equipment; the lifting motion of the second baffle is controlled through the gravity action of rainwater, so that the first through hole is opened and closed as required, the waterproof effect of the box body is ensured while the heat dissipation of the box body is not influenced, and the heat dissipation and waterproof problems of the box body are solved; when the rain-proof box is in heavy rain, rainwater splashed from the bottom is blocked by the first connecting plate, so that a small amount of water is splashed onto the surface of the box body, and the phenomenon that excessive water is polluted on the surface of the box body and permeates into the box body from a gap of the box body is avoided; under the mutually supporting of first baffle and roof, reduce the rainwater and drop the volume on the box lateral wall, make the water column of attached to the small part on the box lateral wall, promote the reliability that the second baffle is sealed to first through-hole, avoid the rainwater to enter into and cause the damage to the circuit in the box.

A water storage tank 31 is arranged on the top plate 3, a connecting pipe 34 is arranged at the bottom of the top plate 3, a second connecting plate 32 is arranged at the bottom of the connecting pipe 34, a second baffle 33 is arranged at the bottom of the second connecting plate 32, a first movable cavity 13 and a second movable cavity are arranged on the side wall of the box body 1, the second connecting plate 32 is arranged in the first movable cavity 13, and the second baffle 33 is arranged in the second movable cavity; rainwater is collected in the water storage tank when falling on the top plate, so that the gravity of the top plate is increased, the top plate is pressed to move downwards under the gravity of the rainwater, the top plate pushes the second connecting plate to move downwards, the second baffles on two sides synchronously move downwards under the action of the second connecting plate, the first through hole on the side wall of the box body is sealed, and the rainwater is prevented from entering the box body from the first through hole; first activity chamber and second activity chamber provide the headspace for the motion of second connecting plate and second baffle, are convenient for play the control usefulness through the opening and shutting of second baffle to first through-hole, make the heat dissipation of box and waterproof compromise simultaneously, promote the reliability that the box used.

A first water conveying cavity 321 is arranged in the second connecting plate 32, a second water conveying cavity 331 communicated with the first water conveying cavity 321 is arranged in the second baffle 33, the first water conveying cavity 321 is communicated with the water storage tank 31 through the connecting pipe 34, a supporting spring 322 is arranged at the bottom of the second connecting plate 32, and the bottom of the supporting spring 322 is arranged at the bottom of the first movable cavity 13; the middle part of the bottom surface of the first water delivery cavity protrudes upwards, so that rainwater entering the first water delivery cavity flows along the inner wall of the first water delivery cavity, the rainwater is prevented from being retained in the first water delivery cavity, and the rainwater can better enter the second water delivery cavity from the first water delivery cavity; after rainwater is collected in the water storage tank, the rainwater in the water storage tank enters the first water conveying cavity through the connecting pipe, water flow in the first water conveying cavity enters the second water conveying cavity and flows out, and when the water flow flows out of the water conveying cavity, part of heat in the box body is taken away, so that the heat dissipation effect on the interior of the box body is achieved, and the phenomenon that the working temperature in the box body is overhigh due to the sealing of the first through hole is avoided; the water flow in the water storage cavity is emptied, meanwhile, the heat dissipation effect is achieved on the interior of the box body, and the collected water flow is reasonably utilized; when water flow in the water storage tank is discharged through the water delivery cavity, the weight of the top plate is reduced to be less than the elastic force of the supporting spring, the second connecting plate is pushed to move upwards under the action of the supporting spring, the second baffle is driven to move upwards, the first through hole is aligned with the second through hole, the box body is in a conduction state with the outside, and equipment in the box body is enabled to dissipate heat quickly.

A surrounding plate matched with the second through hole 332 is arranged in the second water conveying cavity 331, a connecting block 35 is arranged at the bottom of the second baffle 33, a through groove matched with the connecting block 35 is arranged on the first connecting plate 2, a first cavity communicated with the second water conveying cavity 331 is arranged in the connecting block 35, and a third water outlet 351 is arranged on the side wall of the first cavity; the enclosing plate has a sealing effect on the second through hole, so that water flow in the second water conveying cavity cannot be directly discharged from the second through hole, the retention time of the water flow in the second water conveying cavity is prolonged, more heat in the box body is absorbed when the water flow flows in the second water storage tank, and the box body achieves a heat dissipation effect under the action of the water flow; the water flow in the second water conveying cavity moves into the first cavity under the action of gravity, so that the water flow is discharged from the third water discharge port, a complete passage is formed between the water reservoir and the first cavity, the water flow in the water reservoir is discharged, and the first through hole is opened again.

A blocking block 352 is arranged at the bottom of the connecting block 35, the blocking block 352 is made of elastic materials, specifically rubber materials, and the top of the blocking block 352 is of a conical structure; when the first through hole is in an open state, the second connecting plate is positioned at the top of the first movable cavity, the connecting block is positioned in the through groove, the blocking block is in contact with the bottom of the first connecting plate, under the pressure action of the first connecting plate on the blocking block, the blocking block is deformed to block a gap between the through groove and the connecting block, and partial water flow is reserved in the second water conveying cavity to cooperate with the first through hole to cool the interior of the box body; when the first through hole is in a closed state, the second connecting plate pushes the second baffle to move downwards, so that the second baffle pushes the connecting block to extend out of the through groove, the blocking block is restored under the action of elasticity after not contacting with the first connecting plate, and the first water drainage port is positioned outside the through groove so as to discharge water flow in the second water delivery cavity; the rivers drip down the landing along the conical surface at sprue top when the sprue top, avoid rivers amasss on the sprue, promote the water-proof effects of box.

A guide pipe 15 matched with the first through hole is arranged on the side wall of the box body 1, the first through hole is obliquely arranged, the outer side of the guide pipe 15 is obliquely and upwards arranged, a third through hole 151 is arranged on the side wall of the guide pipe 15, and a second through cavity 14 communicated with the first through hole is arranged on one side of the second movable cavity; when the first through hole is in an open state, air enters the first through hole from the conduit, so that the interior of the box body is communicated with the outer side of the box body, and heat in the box body is taken away under the flowing of the air; through the arrangement of the third through hole, more air flow enters the guide pipe, so that the air flow entering the box body is increased, and the heat dissipation effect in the box body is further improved; when the first through hole is in a closed state, part of rainwater enters the second through cavity from the conduit, and the rainwater flows in the second through cavity and contacts with the inner wall of the second through cavity, so that the rainwater in the second through cavity is matched with the rainwater in the second water delivery cavity to play a role in heat dissipation in the box body, most of heat in the box body is taken away, and equipment in the box body is protected.

A chute 141 is arranged at the bottom of the second through cavity 14, a first drainage port is arranged on the side wall of the second through cavity 14, and the first drainage port is arranged at the bottom end of the chute 141; a plurality of fourth through holes 22 are formed in the first connecting plate 2, and the top of the first baffle 21 is inclined to the box body 1; when flowing in the second through cavity, the rainwater moves to the bottom of the second through cavity under the action of gravity, and the rainwater at the bottom of the second through cavity flows downwards along the surface of the chute, so that the rainwater in the second through cavity is discharged from the first water discharge port, and the rainwater is prevented from accumulating in the second through cavity; rainwater discharged from the first water discharging port is discharged onto the first connecting plate, and the rainwater on the first connecting plate falls off from the connecting plate through the fourth through hole, so that the rainwater in the second through cavity is completely discharged from the box body; after the first baffle is obliquely arranged, the top of the first baffle is located below the top plate, most of rainwater is shielded through the top plate, the amount of rainwater falling on the first connecting plate is reduced, the rainwater amount falling on the side wall of the box body is reduced, and the rainwater is prevented from permeating into the box body and playing a good waterproof effect on the box body.

A third baffle 16 matched with the first drainage port is arranged on the side wall of the box body 1, one end of the third baffle 16 is hinged to the side wall of the box body 1, and the bottom of the third baffle 16 is higher than the bottom of the first drainage port; when the third baffle is not stressed, the side wall of the third baffle is in contact with the side wall of the box body, the first drainage port is sealed under the action of the third baffle, the caliber of the first drainage port is reduced, most of water drops splashed from the bottom are blocked under the action of the first connecting plate, a small part of water drops move to the top of the first connecting plate through the fourth through hole, the water drops moving to the first connecting plate are blocked under the action of the third baffle, the dynamic potential energy of the water drops is offset, and the water drops cannot enter the second through hole, so that rainwater is prevented from permeating into the box body; when water flow is discharged from the second through cavity, the water flow pushes the third baffle plate to enable the third baffle plate to rotate around the link point, so that the first water discharge port is in an open state, the water flow in the second through cavity is directly discharged from the first through hole, and the third baffle plate is prevented from blocking the water discharge work of the second through cavity.

The side walls of two sides of the water storage tank 31 are provided with second water outlets 315, a mounting plate 311 is arranged in the water storage tank 31, the bottom of the mounting plate 311 is provided with two stoppers 313 matched with the second water outlets 315, the stoppers correspond to the second water outlets on two sides respectively, the bottom of the mounting plate 311 is provided with a sliding groove, the top of each stopper 313 is provided with a sliding block matched with the sliding groove, the mounting plate 311 is provided with a sealing film 312, the sealing film is made of rubber, an arc-shaped elastic sheet 314 is arranged below the sealing film 312, and two ends of each arc-shaped elastic sheet 314 are connected with the corresponding stopper; when the water storage tank is not filled with water, the second water outlet is in an open state, and the stop block is not contacted with the side wall of the second water outlet; when the water storage tank is full of water, rainwater exerts pressure on the sealing membrane to enable the sealing membrane to move downwards, the sealing membrane pushes the arc-shaped elastic sheet to deform, the arc-shaped elastic sheet pushes the stop block to move towards the two sides of the water storage tank, the second water outlet is sealed under the action of the stop block, rainwater in the water storage tank can be discharged from the water delivery cavity only, and heat in the tank body can be taken away under the action of water flow; when rainwater in the water storage tank is discharged to a certain degree, the weight of the rainwater in the water storage tank is smaller than the elastic force of the supporting spring, and meanwhile, the weight of the rainwater is also smaller than the elastic force of the arc-shaped elastic sheet, so that the arc-shaped spring automatically resets under the action of the elastic force, the stop block is driven to move towards the middle part of the water storage tank, and the second water outlet is in an open state, so that residual rainwater in the water storage tank is discharged, and the rainwater is prevented from being detained in the water storage tank.

A third movable cavity is formed in the handle 12, the reset switch 121 is arranged in the third movable cavity, a limit spring 122 matched with the reset switch 121 is arranged in the third movable cavity, an indicator lamp is arranged on the handle 12, a first contact is arranged at the top of the third movable cavity, and a second contact is arranged on the reset switch 121; when the box cover is opened, the lock catch is in an open state, the reset switch is in a bounce state, the first contact and the second contact are in contact under the action of the limiting spring, the electric quantity of the indicator light is used for prompting an operator that the lock catch is in the open state, the operator is prevented from misjudging whether the box cover is in the open state or the closed state, and the use safety of the distribution box is ensured; when the lock catch is closed, the combined switch is arranged at the bottom of the third movable cavity, so that the first contact block and the second contact block are in a disconnected state, and the indicator light is turned off to inform an operator that the box cover is closed.

When the distribution box is normally used, the first through hole is in an open state, air enters the box body from the first through hole, heat in the box body is taken away, and a heat dissipation effect is achieved in the box body; when the rainwater falls on the top plate in rainy days, the rainwater is collected in the water storage tank, so that the weight of the top plate is increased under the action of the rainwater, the stop block moves towards the second water drainage port under the action of the gravity of the rainwater to seal the second water drainage port, the rainwater in the water storage tank enters the water delivery cavity through the connecting pipe, the rainwater takes away heat in the box when moving in the water delivery cavity, the box body in a sealed state is sealed, and the influence on equipment in the box body due to overhigh temperature of the box body is avoided; the water flow in the second water conveying cavity is discharged through a third water outlet on the connecting block, so that the rainwater forms a passage in the water conveying cavity; part of rainwater entering the second through cavity through the conduit is discharged from the first water discharge port, so that the rainwater is matched with rainwater in the Duer water delivery cavity when flowing in the second through cavity to perform a temperature reduction effect on the box body; when the rain stops, the rainwater in the water storage tank is gradually reduced along with the continuous drainage of the water delivery cavity, and when the weight of the rainwater in the water storage tank is smaller than the elastic force of the supporting spring, the second baffle plate moves upwards to enable the first through hole and the second through hole to be aligned with each other, and the first through hole is in an open state again; the stop block is in contact with the side wall of the water storage tank, so that the second water outlet is in an open state, and residual rainwater in the water storage tank is discharged from the second water outlet, and the rainwater in the water storage tank is convenient to clean.

Claims

1. The utility model provides a high voltage distribution box for power equipment, include box (1), articulate in case lid (11) on box (1) lateral wall and locate handle (12) on case lid (11), be equipped with the hasp on case lid (11), be equipped with on handle (12) with hasp matched with reset switch (121), its characterized in that: the water-saving box is characterized in that a first connecting plate (2) is arranged at the bottom of the box body (1), a first baffle (21) is arranged on the first connecting plate (2), the first baffle (21) is arranged on two sides of the box body (1), a top plate (3) is arranged at the top of the box body (1), a second baffle (33) is arranged at the bottom of the top plate (3), a plurality of first through holes are formed in the side wall of the box body (1), second through holes (332) matched with the first through holes are formed in the second baffle (33), and when water is accumulated on the top plate (3), the second baffle (33) moves downwards to enable the first through holes and the second through holes (332) to be staggered; a water storage tank (31) is arranged on the top plate (3), a connecting pipe (34) is arranged at the bottom of the top plate (3), a second connecting plate (32) is arranged at the bottom of the connecting pipe (34), a second baffle (33) is arranged at the bottom of the second connecting plate (32), a first movable cavity (13) and a second movable cavity are arranged on the side wall of the box body (1), the second connecting plate (32) is arranged in the first movable cavity (13), and the second baffle (33) is arranged in the second movable cavity; a first water conveying cavity (321) is arranged in the second connecting plate (32), a second water conveying cavity (331) communicated with the first water conveying cavity (321) is arranged in the second baffle (33), the first water conveying cavity (321) is communicated with the water storage tank (31) through the connecting pipe (34), a supporting spring (322) is arranged at the bottom of the second connecting plate (32), and the bottom of the supporting spring (322) is arranged at the bottom of the first movable cavity (13); a surrounding plate matched with the second through hole (332) is arranged in the second water conveying cavity (331), a connecting block (35) is arranged at the bottom of the second baffle (33), a through groove matched with the connecting block (35) is formed in the first connecting plate (2), a first cavity communicated with the second water conveying cavity (331) is arranged in the connecting block (35), and a third water outlet (351) is formed in the side wall of the first cavity; a blocking block (352) is arranged at the bottom of the connecting block (35), the blocking block (352) is made of elastic materials, and the top of the blocking block (352) is of a conical structure; be equipped with second outlet (315) on catch basin (31) lateral wall, be equipped with mounting panel (311) in catch basin (31), mounting panel (311) bottom be equipped with second outlet (315) matched with dog (313), mounting panel (311) bottom is equipped with the spout, dog (313) top be equipped with spout matched with slider, be equipped with seal membrane (312) on mounting panel (311), seal membrane (312) below is equipped with arc shell fragment (314), arc shell fragment (314) both ends respectively with dog (313) link to each other.

2. A high voltage distribution box for electrical equipment according to claim 1, wherein: the box body (1) is characterized in that a guide pipe (15) matched with the first through hole is arranged on the side wall of the box body (1), the first through hole is obliquely arranged, the outer side of the guide pipe (15) is obliquely and upwards arranged, a third through hole (151) is arranged on the side wall of the guide pipe (15), and a second through cavity (14) communicated with the first through hole is arranged on one side of the second movable cavity.

3. A high voltage distribution box for electrical equipment according to claim 1, wherein: be equipped with the third movable chamber on handle (12), reset switch (121) are located the third movable intracavity, the third movable intracavity be equipped with reset switch (121) matched with spacing spring (122), be equipped with the pilot lamp on handle (12), the third movable chamber top is equipped with first contact, be equipped with the second contact on reset switch (121).