CN113285374B - Prevent wind type high tension switchgear leak protection device that shears - Google Patents

Abstract

The invention discloses a windproof and shear-resistant high-voltage distribution box leakage-proof device, which comprises a high-voltage distribution box leakage-proof system and a distribution box, and is characterized in that: the high-voltage distribution box leakage-proof system comprises a wind resistance layer level adjusting module, a distribution box internal monitoring module and a personnel protecting module, and is used for monitoring the stability and the safety of the distribution box in each time period; the wind resistance level adjusting module is used for monitoring real-time weather, stability adjustment of the distribution box is carried out according to the severity of the weather, the distribution box is guaranteed to be fixed safely and stably, the internal monitoring module of the distribution box is used for monitoring the internal condition of the distribution box and judging whether electricity leaks in the distribution box or not, whether the temperature is too high or not and the like, and the personnel protection module is used in combination with the internal monitoring module of the distribution box and used for giving an alarm and automatically cutting off the power.

Description

Prevent wind type high tension switchgear leak protection device that shears

Technical Field

The invention relates to the technical field of municipal engineering, in particular to a windproof and shear-resistant high-voltage distribution box leakage-proof device.

Background

The distribution box belongs to an electrical device, and the switching device, the measuring instrument, the protective electrical appliance and the auxiliary device are required to be assembled in a closed or semi-closed metal cabinet or on a screen to form the low-voltage distribution box. Can put through or breaking circuit with the help of manual or automatic switch during normal operating, present block terminal all is installed on the electric wire post, and stability can under the general condition, but the block terminal rocks easily under bad weather, and the security of electric wire reduces, and rainstorm weather has the possibility of falling even, and consequently, it is very necessary to design a strong and strong with the security function prevent wind shear type high voltage distribution box leak protection device.

Disclosure of Invention

The invention aims to provide a wind-proof and shear-proof high-voltage distribution box leakage-proof device to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a prevent wind type high tension switchgear leak protection device that shears, includes high tension switchgear leak protection system and block terminal, its characterized in that: the high-voltage distribution box leakage-proof system comprises a wind resistance layer level adjusting module, a distribution box internal monitoring module and a personnel protecting module, and is used for monitoring the stability and the safety of the distribution box in each time period;

the wind resistance level adjusting module is used for monitoring real-time weather and adjusting the stability of the distribution box according to the severity of the weather to ensure that the distribution box is safely and stably fixed;

the distribution box internal monitoring module is used for monitoring the internal condition of the distribution box and judging whether the inside of the distribution box leaks electricity or not and whether the temperature is too high or not;

the personnel protection module is used for being jointly used with the internal monitoring module of the distribution box and is used for giving an alarm and automatically cutting off power.

According to the technical scheme, the wind resistance level adjusting module comprises a wind shielding angle adjusting unit, a transmission control ratio unit and an air quality monitoring unit;

keep out wind angle accommodate unit is including preventing wind the board, the top outside of block terminal is provided with the slipway track, be provided with the bracing post between slipway track and the block terminal, prevent wind the board and install on the slipway track, the sliding tray has been seted up on the slipway track, prevent wind the board and be provided with the pulley in the one side that is close to the block terminal, the pulley agrees with the sliding tray, the pulley is connected for the electricity with the block terminal, the orbital both ends of slipway all are provided with the tail wing board, prevent wind and seted up the air intake on the board, be provided with the gas outlet on the tail wing board.

According to the technical scheme, the inboard of preventing wind board is provided with the jam board, the inside sliding connection of jam board has the sealing layer, the sealing layer is including the exocoel, the internally mounted of exocoel has the expansion plate, bolted connection has the spring between the other end of expansion plate and the exocoel inner wall, the last supplementary mouth of having seted up of jam board, the pulley both sides have all been opened the brill and have the hole, the hole is pipe connection with the air intake, supplementary mouth is pipe connection with the gas outlet, install the slide on the inside lateral wall of jam board, the sealing layer is sliding connection with the slide, the inside of jam board is provided with the gas injection hole.

According to the technical scheme, the internally mounted of air intake has the filter screen, air quality monitoring unit is arranged in monitoring the air impurity's in the block terminal outside how much, adjusts the filter screen in the air intake according to the situation of air quality, the transmission accuse is compared the unit and is installed in the inside of preventing wind the board for control intake and air inlet direction, the operation step of transmission accuse ratio unit:

s41, wind enters the windproof plate from the air inlet, the air quality monitoring unit operates to detect the air quality m at the moment, the air quality m is in direct proportion to the size n of the holes of the filter screen, if the air quality is good, the holes n of the filter screen are larger, the ventilation of airflow is facilitated, if the air quality is poor, the holes n of the filter screen are smaller, the ventilation of the airflow is ensured, the entry of impurities can be effectively blocked, and the penetration of a plurality of holes in the windproof plate is ensured;

s42, triggering a transmission control ratio unit by gas entering the windproof plate, proportioning the transmission control ratio unit according to the detected air volume, allowing a part of the air volume to enter the interior of the distribution box for heat dissipation, and conveying a part of the air volume to enter an air outlet to drive a tail wing plate;

s43, setting the gas quantity in the windproof plate to be L, fixing a gas quantity value J in the system, if L is less than J, conveying all the gas in the windproof plate to enter a gas outlet by the transmission ratio control unit, and if L is greater than J, conveying the gas quantity with the J quantity value to enter a tail wing plate by the transmission ratio control unit, and then conveying the rest L-J quantity into a distribution box for heat dissipation;

and S44, when the temperature is too high due to the occurrence of a problem in the distribution box, the personnel protection module is triggered, the personnel protection module forcibly distributes the air inlet volume, and all the air volume is conveyed into the distribution box to be used for heat dissipation to ensure safety.

According to the above technical solution, the formula of S41 is:

；

；

in the formula, m is an air mass coefficient; n is a set value of the opening of the filter screen; h is the air volume input into the auxiliary port.

According to the technical scheme, the internal monitoring module of the distribution box comprises a voltage monitoring meter, an energy rate conversion unit and an internal temperature monitoring meter;

the voltage monitoring table is used for monitoring a voltage value U in the distribution box, the energy rate conversion unit is used for protecting the distribution box, the internal temperature monitoring table is used for monitoring the temperature inside the distribution box, the internal temperature monitoring table is connected with the transmission control ratio unit, the internal mounting of the distribution box is provided with a fixed column, the internal mounting of the fixed column is provided with a small front claw, and the small front claw is connected with the energy rate conversion unit.

According to the technical scheme, the operation steps of the internal monitoring module of the distribution box are as follows:

s71, monitoring the real-time state of the distribution box by an internal monitoring module of the distribution box and collecting information, wherein the module runs all the time, a personnel protection module is triggered, and the internal monitoring module of the distribution box stops running or suspends part of units;

s72, recording voltage in real time by a voltage monitoring meter, monitoring the temperature in the distribution box in real time by an internal temperature monitoring meter, and driving a wind resistance level adjusting module to guide wind flow around the distribution box to an air inlet with the maximum efficiency when the temperature in the distribution box is higher, wherein the flow guiding speed is d, the temperature in the distribution box is t, and the flow guiding speed d is accelerated along with the rise of the temperature t;

and S73, the electric wire in the distribution box is clamped by the fixing columns, and when the wind-proof plate introduces external air flow, the energy rate conversion unit drives the small front claw to fix the electric wire, so that the electric wire is prevented from being blown by the air flow.

According to the technical scheme, the personnel protection module comprises a real-time wind shadow unit, an emergency explosion-proof unit and an emergency power-off unit;

real-time wind shadow unit is used for monitoring whether near block terminal has the personnel to get into, urgent explosion-proof unit is used for forcing when the numerical value of voltage monitoring table numerical value superelevation or the inside temperature monitoring table of block terminal superelevation promptly and starts the energy conversion that the energy conversion unit is used for controlling whole block terminal, the power of block terminal is cut off to the emergency power-off unit, real-time wind shadow unit is installed in air inlet department.

According to the technical scheme, the personnel protection module comprises the following operation steps:

s91, when external wind power enters the windproof plate, information is collected through a real-time wind shadow unit, and the real-time wind shadow unit calculates an imaging area and judges the position of an imaging area block in the system according to a wind pressure value in the air inlet direction;

s92, the air inlet is a vertical plane, the whole vertical plane is divided into a plurality of small units, the air pressure value in each unit area is within a fixed range, the imaging is clear at the moment, when large objects such as personnel or vehicles stand nearby the distribution box, the objects block the air flow, the air pressure value at the air inlet is greatly reduced, the small units at the positions with smaller air pressure values are not clear in imaging, and the real-time air shadow unit detects that the emergency explosion-proof unit and the emergency power-off unit are driven;

and S93, the emergency explosion-proof unit and the emergency power-off unit operate in sequence, the emergency explosion-proof unit finishes operating, the internal monitoring module of the distribution box still operates to drive the personnel protection module to operate the emergency power-off unit, and the dual protection effect is achieved.

According to the technical scheme, the calculation formula of the real-time wind shadow unit is as follows:

；

；

in the formula, S is the area of a region with a smaller detected wind pressure value; a is an initial threshold value of the reduction of the wind pressure value; b is an initial threshold value for increasing the wind pressure value; c is the fluctuation value of the measured wind pressure value; g is the measurement time.

Compared with the prior art, the invention has the following beneficial effects: according to the invention, the telescopic plate is arranged, the larger the wind power is, the farther the telescopic plate moves, the more auxiliary ports are shielded, and when the wind power reaches a certain degree, the maximum moving distance of the telescopic plate is reached to shield all the auxiliary ports, so that the effects that the air outlet at the lower part is not exhausted, and the air outlet at the other air outlet is exhausted are achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall elevational cross-sectional structural view of the present invention;

FIG. 2 is a schematic view of the windguard of the present invention;

FIG. 3 is a schematic diagram of the system of the present invention;

in the figure: 1. a distribution box; 2. fixing a column; 3. a windbreak panel; 4. an air inlet; 5. sliding the rail; 6. an air outlet; 7. a tail wing panel; 8. a diagonal bracing column; 9. a blocking plate; 10. a sealing layer; 11. a retractable plate; 12. a spring; 13. an outer cavity; 14. an auxiliary port; 15. an inner bore; 16. a gas injection hole; 17. a slideway.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a prevent wind type high tension switchgear leak protection device that shears, includes high tension switchgear leak protection system and block terminal 1, its characterized in that: the high-voltage distribution box leakage-proof system comprises a wind resistance layer level adjusting module, a distribution box internal monitoring module and a personnel protecting module, and is used for monitoring the stability and the safety of the distribution box 1 in each time period;

the wind resistance level adjusting module is used for monitoring real-time weather, stability adjustment of the distribution box is carried out according to the severity of the weather to ensure that the distribution box is safely and stably fixed, when the weather condition is good, the wind resistance level adjusting module does not act and is stable, and when the weather condition is bad, the wind resistance level adjusting module starts to adjust the external structure of the distribution box to be stable, so that the distribution box cannot shake;

the distribution box internal monitoring module is used for monitoring the internal condition of the distribution box, judging whether the inside of the distribution box leaks electricity or not and judging whether the temperature is too high or not, if the internal temperature of the distribution box is too high, driving the wind resistance level adjusting module, utilizing the wind resistance level adjusting module to cool the inside of the distribution box, and if the inside of the distribution box begins to leak electricity, driving the personnel protecting module to prevent the distribution box from causing harm to surrounding personnel;

the personnel protection module is used for being jointly used with the monitoring module in the distribution box and is used for giving an alarm and automatically cutting off power.

The wind resistance level adjusting module comprises a wind shielding angle adjusting unit, a transmission control ratio unit and an air quality monitoring unit;

the wind shielding angle adjusting unit comprises a wind shielding plate 3, a slipping track 5 is arranged on the outer side of the top of a distribution box 1, an inclined strut 8 is arranged between the slipping track 5 and the distribution box 1, the wind shielding plate 3 is installed on the slipping track 5, a sliding groove is formed in the slipping track 5, a pulley is arranged on one surface, close to the distribution box 1, of the wind shielding plate 3, the pulley is matched with the sliding groove, the pulley is electrically connected with the distribution box 1, tail wing plates 7 are arranged at two ends of the slipping track 5, an air inlet 4 is formed in the wind shielding plate 3, and an air outlet 6 is formed in the tail wing plates; when the weather condition is good, the stability of the distribution box does not need to be maintained by an external component, when the weather condition is severe, the external wind power is large, the wind direction judged by the wind shielding angle adjusting unit is changed, a signal is transmitted to the pulley, the pulley operates to drive the wind shielding plate to move, the wind shielding plate moves to drive the air inlet to move until the air inlet faces the blowing direction, the wind is blown towards the wind shielding plate, the air inlet is designed into a funnel shape, the wind power can be absorbed into the air inlet with the maximum efficiency, the upper part of the tail wing plate is flat, the lower part of the tail wing plate has a certain radian, the wind in the air inlet is respectively conveyed to the two air outlets, at the moment, the air outlet close to the wind shielding plate is blocked, the wind power is gathered and sprayed out from the other air outlet, the air pressure above the tail wing plate on the opened air outlet side is unchanged, the air pressure below the tail wing plate is rapidly reduced, so that the tail wing plate is in a pull-down trend and is matched with the wind shielding plate, the stability of the distribution box is maintained.

The inner side of the windproof plate 3 is provided with a plugging plate 9, the inner part of the plugging plate 9 is connected with a sealing layer 10 in a sliding manner, the sealing layer 10 comprises an outer cavity 13, an expansion plate 11 is arranged in the outer cavity 13, a spring 12 is connected between the other end of the expansion plate 11 and the inner wall of the outer cavity 13 through a bolt, an auxiliary port 14 is formed in the plugging plate 9, inner holes 15 are drilled in two sides of the pulley, the inner holes 15 are connected with the air inlet 4 through a pipeline, the auxiliary port 14 is connected with the air outlet 6 through a pipeline, a slide way 17 is arranged on the inner side wall of the plugging plate 9, the sealing layer 10 is connected with the slide way 17 in a sliding manner, and a gas injection hole 16 is formed in the plugging plate 9; wind enters the air inlet and is discharged through the inner hole, two sides of the pulley are respectively divided into the inner holes, each inner hole is respectively corresponding to one blocking plate, when the windproof plate moves to the position, the upper inner hole leads to the far air outlet, the lower inner hole leads to the near air outlet, the lower sealing layer descends to the position of the air injection hole through the slide way, so that the air injection hole is embedded in the outer cavity, the upper sealing layer descends to be far away from the air injection hole, so that the air in the air injection hole can be communicated with the auxiliary ports, the air in the lower air injection hole rushes into the outer cavity to push the expansion plate, the expansion plate gradually moves to be separated from the outer cavity, the larger the wind power is, the farther the expansion plate moves, the more the shielded auxiliary ports are, when the wind power reaches a certain degree, the moving distance of the expansion plate reaches the maximum value to block all the auxiliary ports, and the lower air outlet does not discharge, and the other air outlet is used for exhausting air.

The internally mounted of air intake 4 has the filter screen, and air quality monitoring unit is used for monitoring what of the air impurity in the 1 outside of block terminal, adjusts the filter screen in the air intake 4 according to the situation of air quality, and the transmission accuse is compared the unit and is installed in the inside of preventing wind board 3 for control intake and air inlet direction, the operation step of transmission accuse ratio unit:

s41, wind enters the windproof plate from the air inlet, the air quality monitoring unit operates to detect the air quality m at the moment, the air quality m is in direct proportion to the size n of the holes of the filter screen, if the air quality is good, the holes n of the filter screen are larger, the ventilation of airflow is facilitated, if the air quality is poor, the holes n of the filter screen are smaller, the ventilation of the airflow is ensured, the entry of impurities can be effectively blocked, and the penetration of a plurality of holes in the windproof plate is ensured;

s42, triggering a transmission control ratio unit by gas entering the windproof plate, proportioning the transmission control ratio unit according to the detected air volume, allowing a part of the air volume to enter the interior of the distribution box for heat dissipation, and conveying a part of the air volume to enter an air outlet to drive a tail wing plate;

s43, setting the gas quantity in the windproof plate to be L, fixing a gas quantity value J in the system, if L is less than J, conveying all the gas in the windproof plate to enter a gas outlet by the transmission ratio control unit, and if L is greater than J, conveying the gas quantity with the J quantity value to enter a tail wing plate by the transmission ratio control unit, and then conveying the rest L-J quantity into a distribution box for heat dissipation;

and S44, when the temperature is too high due to the occurrence of a problem in the distribution box, the personnel protection module is triggered, the personnel protection module forcibly distributes the air inlet volume, and all the air volume is conveyed into the distribution box to be used for heat dissipation to ensure safety.

The formula of S41 is:

；

；

in the formula, m is an air mass coefficient; n is a set value of the opening of the filter screen; h is the air volume input into the auxiliary inlet; the formula calculates the air quantity acting on the tail wing plate.

The internal monitoring module of the distribution box comprises a voltage monitoring meter, an energy rate conversion unit and an internal temperature monitoring meter;

the voltage monitoring table is used for monitoring the voltage value U in the block terminal, energy rate conversion unit is used for protecting the block terminal, when voltage in the block terminal exceeds rated value e, energy rate conversion unit can be used for protecting the block terminal on the ground wire that the part that exceeds rated value e was switchoverred to, energy rate conversion unit only is applicable to the less condition of scope that exceeds rated voltage e, inside temperature monitoring table is used for the inside temperature of control block terminal, inside temperature monitoring table and transmission control ratio unit connection, the internally mounted of block terminal 1 has fixed column 2, the internally mounted of fixed column 2 has little front paw, little front paw is connected with energy rate conversion unit.

The operation steps of the internal monitoring module of the distribution box:

s71, monitoring the real-time state of the distribution box by an internal monitoring module of the distribution box and collecting information, wherein the module runs all the time, a personnel protection module is triggered, and the internal monitoring module of the distribution box stops running or suspends part of units;

s72, recording voltage in real time by a voltage monitoring meter, monitoring the temperature in the distribution box in real time by an internal temperature monitoring meter, and driving a wind resistance level adjusting module to guide wind flow around the distribution box to an air inlet with the maximum efficiency when the temperature in the distribution box is higher, wherein the flow guiding speed is d, the temperature in the distribution box is t, and the flow guiding speed d is accelerated along with the rise of the temperature t;

and S73, the electric wire in the distribution box is clamped by the fixing columns, and when the wind-proof plate introduces external air flow, the energy rate conversion unit drives the small front claw to fix the electric wire, so that the electric wire is prevented from being blown by the air flow.

The personnel protection module comprises a real-time wind shadow unit, an emergency explosion-proof unit and an emergency power-off unit;

the real-time wind shadow unit is used for monitoring whether a person enters nearby the distribution box, the emergency explosion-proof unit is used for forcibly starting the energy conversion unit to control the energy conversion of the whole distribution box when the voltage monitoring meter value is ultrahigh or the value of the temperature monitoring meter in the distribution box is ultrahigh at an emergency moment, the emergency power-off unit cuts off the power supply of the distribution box, and the real-time wind shadow unit is installed at an air inlet.

The operation steps of the personnel protection module are as follows:

s91, when external wind power enters the windproof plate, information is collected through a real-time wind shadow unit, and the real-time wind shadow unit calculates an imaging area and judges the position of an imaging area block in the system according to a wind pressure value in the air inlet direction;

s92, the air inlet is a vertical plane, the whole vertical plane is divided into a plurality of small units, the air pressure value in each unit area is within a fixed range, the imaging is clear at the moment, when large objects such as personnel or vehicles stand nearby the distribution box, the objects block the air flow, the air pressure value at the air inlet is greatly reduced, the small units at the positions with smaller air pressure values are not clear in imaging, and the real-time air shadow unit detects that the emergency explosion-proof unit and the emergency power-off unit are driven;

and S93, the emergency explosion-proof unit and the emergency power-off unit operate in sequence, the emergency explosion-proof unit finishes operating, the internal monitoring module of the distribution box still operates to drive the personnel protection module to operate the emergency power-off unit, and the dual protection effect is achieved.

The calculation formula of the real-time wind shadow unit is as follows:

；

；

in the formula, S is the area of a region with a smaller detected wind pressure value; a is an initial threshold value of the reduction of the wind pressure value; b is an initial threshold value for increasing the wind pressure value; c is the fluctuation value of the measured wind pressure value; g is the measurement time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a prevent wind type high tension switchgear leak protection device that shears, includes high tension switchgear leak protection system and block terminal (1), its characterized in that: the high-voltage distribution box leakage-proof system comprises a wind resistance layer level adjusting module, a distribution box internal monitoring module and a personnel protecting module, and is used for monitoring the stability and the safety of the distribution box (1) in each time period;

the wind resistance level adjusting module is used for monitoring real-time weather and adjusting the stability of the distribution box according to the severity of the weather to ensure that the distribution box is safely and stably fixed;

the distribution box internal monitoring module is used for monitoring the internal condition of the distribution box and judging whether the inside of the distribution box leaks electricity or not and whether the temperature is too high or not;

the personnel protection module is used in combination with a monitoring module in the distribution box and used for giving an alarm and automatically cutting off power, and the wind resistance level adjusting module comprises a wind shielding angle adjusting unit, a transmission control ratio unit and an air quality monitoring unit;

the wind shielding angle adjusting unit comprises a wind shielding plate (3), a slipping track (5) is arranged on the outer side of the top of a distribution box (1), an inclined strut (8) is arranged between the slipping track (5) and the distribution box (1), the wind shielding plate (3) is installed on the slipping track (5), a sliding groove is formed in the slipping track (5), a pulley is arranged on one face, close to the distribution box (1), of the wind shielding plate (3), the pulley is matched with the sliding groove, the pulley is electrically connected with the distribution box (1), tail wing plates (7) are arranged at two ends of the slipping track (5), an air inlet (4) is formed in the wind shielding plate (3), an air outlet (6) is formed in each tail wing plate, a blocking plate (9) is arranged on the inner side of the wind shielding plate (3), and a sealing layer (10) is connected to the inner sliding of the blocking plate (9), the sealing layer (10) comprises an outer cavity (13), a telescopic plate (11) is installed inside the outer cavity (13), a spring (12) is connected between the other end of the telescopic plate (11) and the inner wall of the outer cavity (13) through a bolt, an auxiliary port (14) is formed in the blocking plate (9), inner holes (15) are drilled in the two sides of the pulley, the inner holes (15) are connected with the air inlet (4) through a pipeline, the auxiliary port (14) is connected with the air outlet (6) through a pipeline, a slide way (17) is installed on the inner side wall of the blocking plate (9), the sealing layer (10) is connected with the slide way (17) in a sliding mode, an air injection hole (16) is formed in the blocking plate (9), each inner hole (15) corresponds to one blocking plate (9), when the windproof plate (3) moves to the position, the inner hole (15) above the windproof plate leads to the air outlet (6) at a far position, the lower inner hole (15) leads to the gas outlet (6) at the closer position, at the moment, the lower sealing layer (10) descends to the position of the gas injection hole (16) through a slideway (17), so that the gas injection hole (16) is embedded in the outer cavity (13), the sealing layer (10) at the upper part descends to be far away from the gas injection hole (16), so that the gas in the gas injection hole (16) can be communicated with the auxiliary port (14), the gas in the gas injection hole (16) at the lower part rushes into the outer cavity (13) to push the expansion plate (11), the expansion plate (11) gradually moves to be separated from the outer cavity (13), the larger the wind power is, the farther the moving distance of the expansion plate (11) is, the more the auxiliary port (14) is shielded, and when the wind power reaches a certain degree, the moving distance of the expansion plate (11) reaches the maximum value, all the auxiliary ports (14) are blocked, and the effects that the air outlet (6) below does not emit air and the other air outlet (6) emits air are achieved.

2. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 1, characterized in that: the internally mounted of air intake (4) has the filter screen, air quality monitoring unit is arranged in monitoring the air impurity's in block terminal (1) outside how much, adjusts the filter screen in air intake (4) according to the situation of air quality, the transmission accuse is compared the unit and is installed in the inside of preventing wind board (3) for control intake and air inlet direction, the operation step of transmission accuse ratio unit:

s41, wind enters the windproof plate from the air inlet, the air quality monitoring unit operates to detect the air quality m at the moment, the air quality m is in direct proportion to the size n of the holes of the filter screen, if the air quality is good, the holes n of the filter screen are larger, the ventilation of airflow is facilitated, if the air quality is poor, the holes n of the filter screen are smaller, the ventilation of the airflow is ensured, the entry of impurities can be effectively blocked, and the penetration of a plurality of holes in the windproof plate is ensured;

s42, triggering a transmission control ratio unit by gas entering the windproof plate, proportioning the transmission control ratio unit according to the detected air volume, allowing a part of the air volume to enter the interior of the distribution box for heat dissipation, and conveying a part of the air volume to enter an air outlet to drive a tail wing plate;

s43, setting the gas quantity in the windproof plate to be L, fixing a gas quantity value J in the system, if L is less than J, conveying all the gas in the windproof plate to enter a gas outlet by the transmission ratio control unit, and if L is greater than J, conveying the gas quantity with the J quantity value to enter a tail wing plate by the transmission ratio control unit, and then conveying the rest L-J quantity into a distribution box for heat dissipation;

and S44, when the temperature is too high due to the occurrence of a problem in the distribution box, the personnel protection module is triggered, the personnel protection module forcibly distributes the air inlet volume, and all the air volume is conveyed into the distribution box to be used for heat dissipation to ensure safety.

3. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 2, characterized in that: the formula of S41 is:

；

；

in the formula, m is an air mass coefficient; n is a set value of the opening of the filter screen; h is the air volume input into the auxiliary port.

4. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 3, characterized in that: the internal monitoring module of the distribution box comprises a voltage monitoring meter, an energy rate conversion unit and an internal temperature monitoring meter;

the voltage monitoring table is used for monitoring a voltage value U in the distribution box, the energy rate conversion unit is used for protecting the distribution box, the internal temperature monitoring table is used for monitoring the temperature inside the distribution box, the internal temperature monitoring table is connected with the transmission control ratio unit, the internal mounting of the distribution box (1) is provided with a fixed column (2), the internal mounting of the fixed column (2) is provided with a small front claw, and the small front claw is connected with the energy rate conversion unit.

5. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 4, wherein: the operation steps of the internal monitoring module of the distribution box are as follows:

s71, monitoring the real-time state of the distribution box by an internal monitoring module of the distribution box and collecting information, wherein the module runs all the time, a personnel protection module is triggered, and the internal monitoring module of the distribution box stops running or suspends part of units;

s72, recording voltage in real time by a voltage monitoring meter, monitoring the temperature in the distribution box in real time by an internal temperature monitoring meter, and driving a wind resistance level adjusting module to guide wind flow around the distribution box to an air inlet with the maximum efficiency when the temperature in the distribution box is higher, wherein the flow guiding speed is d, the temperature in the distribution box is t, and the flow guiding speed d is accelerated along with the rise of the temperature t;

and S73, the electric wire in the distribution box is clamped by the fixing columns, and when the wind-proof plate introduces external air flow, the energy rate conversion unit drives the small front claw to fix the electric wire, so that the electric wire is prevented from being blown by the air flow.

6. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 5, wherein: the personnel protection module comprises a real-time wind shadow unit, an emergency explosion-proof unit and an emergency power-off unit;

real-time wind shadow unit is used for monitoring whether near block terminal has the personnel to get into, urgent explosion-proof unit is used for forcing when the numerical value of voltage monitoring table numerical value superelevation or the inside temperature monitoring table of block terminal superelevation promptly and starts the energy conversion that the energy conversion unit is used for controlling whole block terminal, the power of block terminal is cut off to the emergency power-off unit, real-time wind shadow unit is installed in air inlet department.

7. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 6, wherein: the personnel protection module comprises the following operation steps:

s91, when external wind power enters the windproof plate, information is collected through a real-time wind shadow unit, and the real-time wind shadow unit calculates an imaging area and judges the position of an imaging area block in the system according to a wind pressure value in the air inlet direction;

s92, the air inlet is a vertical plane, the whole vertical plane is divided into a plurality of small units, the air pressure value in each unit area is within a fixed range, the imaging is clear at the moment, when personnel or large-sized objects of vehicles stand nearby the distribution box, the objects block the air flow, the air pressure value at the air inlet is greatly reduced, the small units at the positions with smaller air pressure values are not clear in imaging, and the real-time air shadow unit detects that the emergency explosion-proof unit and the emergency power-off unit are driven;

and S93, the emergency explosion-proof unit and the emergency power-off unit operate in sequence, the emergency explosion-proof unit finishes operating, the internal monitoring module of the distribution box still operates to drive the personnel protection module to operate the emergency power-off unit, and the dual protection effect is achieved.

8. The anti-wind and anti-shear high-voltage distribution box leakage prevention device according to claim 7, wherein: the calculation formula of the real-time wind shadow unit is as follows:

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in the formula, S is the area of a region with a smaller detected wind pressure value; a is an initial threshold value of the reduction of the wind pressure value; b is an initial threshold value for increasing the wind pressure value; c is the fluctuation value of the measured wind pressure value; g is the measurement time.

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