CN111799667B - Rain-proof heat dissipation type switch board - Google Patents

Abstract

The invention discloses a rainproof heat-dissipation type power distribution cabinet which comprises a cabinet body, wherein a plurality of heat-dissipation through holes are formed in the side wall of the cabinet body, a ventilation groove is formed in the side wall of the cabinet body, the upper end of the cabinet body is electrically connected with a wind wheel in a rotating mode, one blade of the wind wheel is made of a magnetic material, the cabinet body is made of engineering plastics, a sliding groove is formed in the inner bottom of the ventilation groove, an iron sliding block is connected in the sliding groove in a sliding mode, a square groove is formed in the inner top of the ventilation groove, and a vibrating piece is embedded in the square groove. When raining, the humidity-sensitive resistor conducts the circuit and enables the spring to be electrified and contracted, the stop block is pulled to move upwards to block the heat dissipation through hole, so that rainwater is prevented from entering the cabinet body, when the weather is fine, the humidity-sensitive resistor breaks the circuit, the spring extends to push the stop block to move downwards, airflow in the horizontal direction can smoothly enter the cabinet body, and the power distribution cabinet has good rainproof heat dissipation performance.

Description

Rain-proof heat dissipation type switch board

Technical Field

The invention relates to the technical field of power distribution cabinets, in particular to a rainproof heat-dissipation power distribution cabinet.

Background

In the construction process of an electric power system, a power distribution cabinet is often the most basic and important equipment unit.

Wherein to outdoor switch board, when wind and rain were handed over, wind very easily blew in the switch board with the rainwater in, consequently the radiating hole department of the outer wall of outdoor switch board often is equipped with rain-proof cover, and rain-proof cover blocks to a certain extent in the rainwater gets into the cabinet, but also blockked the air current of horizontal direction simultaneously and flowed inside and outside the switch board, leads to the radiating effect of switch board relatively poor. In view of the above, this application file provides a rain-proof heat dissipation type switch board.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a rainproof heat-dissipation type power distribution cabinet.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a rain-proof heat dissipation type switch board, includes the cabinet body, a plurality of heat dissipation through-holes have been seted up to the lateral wall of the cabinet body, the ventilating slot has been seted up to the lateral wall of the cabinet body, the upper end of the cabinet body is rotated the electricity and is connected with the wind wheel, just one of them blade of wind wheel adopts magnetic material to make, the cabinet body adopts engineering plastics to make, the spout has been seted up to the interior bottom of ventilating slot, sliding connection has the slider of iron system in the spout, square groove has been seted up at the interior top of ventilating slot, the embedded piece that shakes that is equipped with of square groove, the thing groove of putting has all been seted up to the interior top and the interior bottom of heat dissipation through-hole, put thing inslot sliding connection has the dog, just the dog passes through spring elastic connection and puts the.

Preferably, a liquid storage tank is arranged on the side wall of the cabinet body, cooling liquid is filled in the liquid storage tank, a liquid adding opening is formed in the inner wall of the liquid storage tank, a one-way liquid inlet pipe is communicated between the inner bottom of the liquid storage tank and the square groove, and a one-way liquid return pipe is communicated between the inner top of the liquid storage tank and the square groove.

Preferably, the heat dissipation through-hole is embedded to be equipped with the dust screen, just fixedly connected with first permanent magnet on the lateral wall of dust screen, the lateral wall fixedly connected with second permanent magnet of dog.

The invention has the following beneficial effects:

1. by arranging the wind wheel, the sliding block and other components, air can intermittently flow in the ventilation groove in the rotation process of the wind wheel, so that the vibration piece can be caused to vibrate and generate current, when raining, the humidity-sensitive resistor conducts a circuit and enables the spring to be electrified and contracted, the stop block is pulled to move upwards to block the heat dissipation through hole so as to prevent rainwater from entering the cabinet body, and when the weather is fine, the humidity-sensitive resistor disconnects the circuit, the spring extends to push the stop block to move downwards, so that airflow in the horizontal direction can smoothly enter the cabinet body, and the power distribution cabinet has good rainproof heat dissipation performance;

2. by arranging the one-way liquid inlet pipe and the one-way liquid return pipe, when the vibrating piece vibrates, the cooling liquid is forced to flow along the one-way liquid inlet pipe and the one-way liquid return pipe in a one-way circulation manner, so that the heat dissipation effect of the device can be enhanced;

3. through setting up parts such as dust screen, first permanent magnet and second permanent magnet, can be when raining, make first permanent magnet and second permanent magnet relative when the dog shifts up, under the effect of magnetic repulsion, promote the outside protrusion of dust screen, utilize the rainwater to wash out the dust screen totally to keep the good dustproof effect of ventilating of dust screen.

Drawings

Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic structural diagram of a second embodiment of the present invention;

fig. 4 is an enlarged schematic view of the structure at B in fig. 3.

In the figure: thecabinet body 1, the heat dissipation throughhole 2, theventilation groove 3, 31 spout, 4 wind wheels, 5 sliders, 6 square grooves, 61 vibrating piece, 7 liquid storage tank, 71 liquid filling opening, 8 one-way liquid return pipe, 9 one-way liquid inlet pipe, 10 storage groove, 11 spring, 12 dog, 121 second permanent magnet, 13 dust screen, 131 first permanent magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

The first embodiment is as follows:

referring to fig. 1-2, a rain-proof heat dissipation type switch board, includes thecabinet body 1, and a plurality of heat dissipation through-holes 2 have been seted up to the lateral wall of thecabinet body 1, andventilation slot 3 has been seted up to the lateral wall of thecabinet body 1, and the upper end of thecabinet body 1 is rotated the electricity and is connected withwind wheel 4, and one of them blade ofwind wheel 4 adopts magnetic material to make, and thecabinet body 1 adopts engineering plastics to make, andspout 31 has been seted up to the interior bottom ofventilation slot 3, and sliding connection hasslider 5 made.Square groove 6 has been seted up at the interior top ofventilation groove 3, andsquare groove 6 is embedded to be equipped with thepiece 61 that shakes, and shakes thepiece 61 and separate into two groove rooms that do not communicate with each other withventilation groove 3 andsquare groove 6.

The interior top and the interior bottom of heat dissipation through-hole 2 have all been seted up and have been putthing groove 10, put thing inslot 10 sliding connection and havedog 12, anddog 12 passes through 11 elastic connection of spring and put the interior top ofthing groove 10, and thepiece 61 that shakes adopts piezoceramics material to make, and shakespiece 61 and pass through humidity sensitive resistance and 11 electric connection of spring. The connection mode among the vibratingplate 61, the humidity sensitive resistor and thespring 11 is a mature technology in the existing electrical field, and is irrelevant to the design purpose of the scheme, so detailed description is omitted.

Reservoir 7 has been seted up to the lateral wall of thecabinet body 1, and the intussuseption ofreservoir 7 is filled with the coolant liquid, has seted up filling opening 71 on the inner wall ofreservoir 7, and the intercommunication has one-wayfeed liquor pipe 9 between interior bottom ofreservoir 7 and thesquare groove 6, and the intercommunication has one-wayliquid return pipe 8 between the interior top ofreservoir 7 and thesquare groove 6. One-wayfeed liquor pipe 9 only allows the coolant liquid to flow tosquare groove 6 fromreservoir 7, and one-wayliquid return pipe 8 only allows the coolant liquid to flow toreservoir 7 fromsquare groove 6, and the installation check valve can during concrete manufacturing, and one-wayliquid return pipe 8 is snakelike distribution in the internal electric elements ofcabinet 1, can fully contact with the internal electric elements ofcabinet 1, improves the radiating effect.

This device is in the use, when the air current of horizontal direction attacks, can blow thewind wheel 4 rotation of 1 top of the cabinet body, the top ofslider 5 will constantly be swept to the magnetic vane on thewind wheel 4, whenever when magnetic vane is inslider 5 directly over, is nearest apart fromslider 5 this moment, and magnetic force between the two is the biggest, can attractslider 5 to move up toventilation slot 3 in, and when magnetic vane removed the back,slider 5 then relies on the dead weight to fall back in thespout 31. So atwind wheel 4's rotation in-process,slider 5 is in business turn overventilation groove 3 constantly, andslider 5 gets intoventilation groove 3 in the back, can block upventilation groove 3 for the air current can't pass throughventilation groove 3, andslider 5 falls back behind in thespout 31, then the air current of horizontal direction can flow inventilation groove 3 again.

When air flows in theventilation slot 3, the air velocity below the vibratingplate 61 is high, and the pressure intensity generated by the high fluid velocity is small as known from the Bernoulli principle, and the air flow velocity above thevibrating plate 61 is slow, the pressure above thevibrating plate 61 is greater than the pressure below thevibrating plate 61, so thevibrating plate 61 will bulge downward, when no air flows in theventilation slot 3, the air flow velocity difference between the upper side and the lower side of thevibration sheet 61 is almost the same, the pressure intensity is almost the same, therefore, the vibratingplate 61 is restored to be flat under the self-elastic force, so that during the air flow blowing process in the horizontal direction, the vibratingplate 61 is forced to vibrate up and down continuously, the vibratingplate 61 made of piezoelectric ceramics can generate current, when raining, the humidity of the air is extremely high, and the resistance value of the humidity sensitive resistor is extremely low, so that the circuit can be conducted, thespring 11 can be electrified and contracted, thereby pulling thestopper 12 to move up to the heat dissipation throughhole 2, thereby preventing the rainwater from being blown into thecabinet 1 by the airflow blown in the horizontal direction. However, when it rains and there is no wind, it is difficult for vertically falling rainwater to enter thecabinet 1 through the heat dissipation through-holes 2.

When the weather is clear, the air humidity is small, the resistance of the humidity-sensitive resistor is very large, the circuit can be disconnected, thespring 11 is powered off, and thebaffle block 12 is pushed into thestorage groove 10 below by extension, so that the airflow blown in the horizontal direction can flow inside and outside thecabinet body 1, and the heat dissipation effect of the power distribution cabinet is promoted.

In addition, in the up-and-down vibration process of thevibration sheet 61, the closed space formed by thevibration sheet 61 and thesquare groove 6 is continuously increased and decreased, so that the cooling liquid is forced to flow in the unidirectionalliquid inlet pipe 9 and the unidirectionalliquid return pipe 8 in a unidirectional circulation manner under the unidirectional flow limiting effect of the unidirectionalliquid inlet pipe 9 and the unidirectionalliquid return pipe 8, and the heat dissipation performance of the power distribution cabinet is improved.

Example two:

referring to fig. 3 to 4, different from the first embodiment, adust screen 13 is embedded in the heat dissipation throughhole 2, a firstpermanent magnet 131 is fixedly connected to a side wall of thedust screen 13, and a secondpermanent magnet 121 is fixedly connected to a side wall of thestopper 12. It should be noted that when thestopper 12 moves up into the heat dissipation throughhole 2, the like magnetic poles of the firstpermanent magnet 131 and the secondpermanent magnet 121 face each other. And thedust screen 13 is made of a material with good elasticity and has good deformability.

Through set updust screen 13 in heat dissipation through-hole 2, can prevent effectively that the dust outside thecabinet body 1 from getting into in thecabinet body 1, attaching to the electric elements in thecabinet body 1 and influencing its radiating effect.

Furthermore, when thestopper 12 moves up into the heat dissipation throughhole 2, the like magnetic poles of the firstpermanent magnet 131 and the secondpermanent magnet 121 are opposite to each other, and thedust screen 13 is pushed to protrude outward by the action of magnetic repulsion, so that thedust screen 13 bulges outward. When thestop block 12 moves upwards into the heat dissipation throughhole 2, thecabinet body 1 is naturally rainy, the falling rainwater can continuously wash the raiseddust screen 13, and dust or other dirt filtered on thedust screen 13 can be washed clean, so that the good ventilation and dust prevention effects of thedust screen 13 are kept.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (3)

1. The utility model provides a rain-proof heat dissipation type switch board, includes the cabinet body (1), a plurality of heat dissipation through-hole (2) have been seted up to the lateral wall of the cabinet body (1), its characterized in that, ventilating slot (3) have been seted up to the lateral wall of the cabinet body (1), the upper end of the cabinet body (1) is rotated the electricity and is connected with wind wheel (4), just one of them blade of wind wheel (4) adopts magnetic material to make, the cabinet body (1) adopts engineering plastics to make, spout (31) have been seted up to the interior bottom of ventilating slot (3), sliding connection has slider (5) of iron system in spout (31), square groove (6) have been seted up to the interior top of ventilating slot (3), embedded vibrating plate (61) that is equipped with in square groove (6), thing groove (10) have all been seted up to the interior top and the interior bottom of heat dissipation through-hole (2), sliding connection, and the stop block (12) is elastically connected to the inner top of the storage groove (10) through a spring (11), the vibration sheet (61) is made of piezoelectric ceramic materials, and the vibration sheet (61) is electrically connected with the spring (11) through a humidity sensitive resistor.

2. The rainproof heat-dissipation power distribution cabinet according to claim 1, and is characterized in that a liquid storage tank (7) is formed in the side wall of the cabinet body (1), cooling liquid is filled in the liquid storage tank (7), a liquid adding opening (71) is formed in the inner wall of the liquid storage tank (7), a one-way liquid inlet pipe (9) is communicated between the inner bottom of the liquid storage tank (7) and the square groove (6), and a one-way liquid return pipe (8) is communicated between the inner top of the liquid storage tank (7) and the square groove (6).

3. The rainproof heat-dissipation type power distribution cabinet according to claim 1 or 2, wherein a dustproof net (13) is embedded in the heat-dissipation through hole (2), a first permanent magnet (131) is fixedly connected to the side wall of the dustproof net (13), a second permanent magnet (121) is fixedly connected to the side wall of the stop block (12), and the like magnetic poles of the second permanent magnet (121) and the first permanent magnet (131) are opposite.

Images