Energy-saving automatic opening and closing heat dissipation passive distribution box and working method thereof

Abstract

The present invention discloses an energy-saving automatic opening and closing heat dissipation passive distribution box and a working method thereof, and relates to the technical field of passive distribution boxes. The present invention includes a passive distribution box and two side panels, a top panel and a bottom panel thereof, the two side panels and the top panel are respectively provided with a connected side panel evaporation chamber and a top panel air duct on the inner side of the top panel, a heat exchange mechanism for cooling the interior of the passive distribution box is installed on the side panel of the electric box located inside the side panel evaporation chamber, a temperature control and evaporation medium supply system for providing evaporation heat absorption medium for the heat exchange mechanism is installed on the passive distribution box, an angled duct mechanism for accelerating internal circulation heat exchange and dust removal is installed inside the passive distribution box, and a dust collection mechanism is installed below the angled duct mechanism. The technical solution can select different modes for heat dissipation by heat conduction, save energy consumption, ensure the efficiency of automatic heat dissipation and cooling, avoid the environmental impact caused by harsh places, and extend the service life of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of passive distribution boxes, and in particular to an energy-saving automatic opening and closing heat dissipation passive distribution box and a working method thereof. Background Art

[0002] The distribution box is an electrical equipment with the characteristics of small size, easy installation, special technical performance, fixed position, unique configuration function, no site restrictions, wide application, stable and reliable operation, high space utilization, small footprint and environmental protection.

[0003] The heat dissipation problem of distribution boxes has always troubled various users. Existing distribution boxes generally have two heat dissipation methods. One is passive heat dissipation, which usually opens multiple vents on the two side walls of the distribution box for ventilation and heat dissipation, but the heat dissipation effect of this method is poor; in addition, the distribution box with active heat dissipation is in a state of constant heat dissipation, which is not associated with the temperature inside the box, and consumes a lot of energy when working for a long time. At the same time, for some places with harsh environments, active ventilation and heat dissipation distribution boxes are used, which inevitably introduce external dust containing environmental pollution and corrosive media, causing accelerated corrosion and aging of various equipment and connectors in the distribution box, reducing the life of the equipment while increasing safety risks such as short circuits and fires, especially in places with harsh environments, such as chemical rooms or wastewater stations where corrosive gases are stored. Summary of the invention

[0004] In response to the problems in the above technical background, the purpose of the present invention is to provide an energy-saving, automatic opening and closing heat dissipation passive distribution box and its working method, which solves the problems of poor traditional passive heat dissipation effect and high energy consumption and low safety protection performance of active heat dissipation distribution boxes mentioned in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A passive distribution box with energy-saving automatic opening and closing for heat dissipation comprises a passive distribution box and two side panels, a top panel and a bottom panel thereof, the two side panels and the top panel inner sides of which are respectively provided with connected side panel evaporation chambers and top panel air ducts, a heat exchange mechanism for cooling the interior of the passive distribution box is installed on the side panels of the box located inside the side panel evaporation chambers, and a temperature control and evaporation medium supply system for providing evaporation heat absorbing medium for the heat exchange mechanism is installed on the passive distribution box, an angle duct mechanism with hidden accelerated internal circulation heat exchange and dust removal is installed inside the passive distribution box, and a dust collecting mechanism is installed below the angle duct mechanism.

[0007] Furthermore, the heat exchange mechanism comprises a plurality of groups of evaporation medium delivery pipes, evaporation medium cotton with vertically pleated outer surfaces, a heat exchange plate and an exhaust mechanism.

[0008] Furthermore, the evaporation medium cotton whose outer side surface is vertically wrinkled is installed on the inner side surface of the heat exchange plate located in the side plate evaporation chamber through multiple groups of positioning nails, the side plate evaporation chamber in the side plate of the electric box is connected to the interior of the passive distribution box, and clamping guide rails are symmetrically provided on both sides close to the interior of the passive distribution box, the front and rear sides of the heat exchange plate are installed on the clamping guide rails by symmetrically provided guide rail grooves, and at the same time, vertical inner stripes are provided on the inner side surface of the heat exchange plate to increase the contact area with the air, the side plate evaporation chamber located above the outer side of the clamping guide rail is connected to the top plate air duct, the top of the evaporation medium cotton is connected to the bottom ends of multiple groups of evaporation medium delivery pipes, the upper parts of the multiple groups of evaporation medium delivery pipes are installed in parallel in the top plate air duct and converge into the evaporation medium outer header, the evaporation medium outer header passes through the top plate of the electric box and is connected to the evaporation medium storage box included in the temperature control and evaporation medium supply system, and the exhaust mechanism is installed in the middle of the top plate of the electric box.

[0009] Furthermore, the exhaust mechanism includes a bellows, a waterproof trough plate and a ventilation unit, the bellows is connected to the top plate air duct, and has multiple sets of ventilation units for exhaust installed inside, the waterproof trough plate with exhaust and waterproof functions is installed on the top of the bellows, the evaporation medium storage box included in the temperature control and evaporation medium supply system is installed on one side of the bellows, multiple sets of air inlet guide holes penetrating the side plates of the electric box are provided at the bottom of the side plate evaporation chamber, and multiple sets of guide grooves are provided on the side plate of the electric box at the bottom of the side plate evaporation chamber connected to the air inlet guide holes.

[0010] Furthermore, the temperature control and evaporative medium supply system includes an evaporative medium storage box, a temperature monitoring controller, a power supply, the evaporative medium outer manifold, an electromagnetic control valve and a temperature sensor, the temperature monitoring controller and the power supply are installed on the outside of the side panel of the electrical box, the electromagnetic control valve is installed on the evaporative medium outer manifold, the temperature sensor is installed on the inner panel of the passive distribution box, the power supply is electrically connected to the above-mentioned electrical equipment, the output end of the temperature sensor is electrically connected to the input end of the temperature monitoring controller, and the output end of the temperature monitoring controller is electrically connected to the input end of the electromagnetic control valve.

[0011] Furthermore, the angular duct mechanism includes an angular internal circulation duct, a turbofan group, a dustproof mounting frame, a dustproof filter and a driving mechanism; the internal circulation duct is installed at the left end of the bottom plate of the electrical box by providing a penetrating internal circulation duct groove, and the internal circulation duct can be rotated and converted in the internal circulation duct groove by 0-90 degrees; the internal circulation duct includes an upper air outlet and a lower air outlet; the upper air outlet and the lower air outlet form an angle of 90 degrees, and the inner sides facing each other are provided with slopes and the long sides are fitted with one side of the internal circulation duct groove when rotating to the inner circulation duct groove; the turbofan group is installed in the lower air outlet by providing a mounting frame; the dustproof mounting frame is installed on the lower air outlet located on the outside of the turbofan group, and the dustproof filter is installed on the dustproof mounting frame.

[0012] Furthermore, the driving mechanism includes a first bevel gear, a second bevel gear and a servo motor. A driving unit mounting groove is provided on the bottom plate of the electrical box at one end of the inner circulation air duct groove. The inner section connecting shaft of the first bevel gear passes through and is connected to the center of the cylinder at one end of the inner circulation air duct. The second bevel gear is meshed with the first bevel gear and the bottom end of the second bevel gear is fixedly mounted on the output end of the servo motor.

[0013] Furthermore, an electric box base is installed at the bottom of the electric box bottom plate, and a dust collecting chamber for storing dust collected by the angle duct mechanism is provided on the electric box base. A dust collecting drawer is installed on the dust collecting chamber, and a ventilation filter window for releasing pressure when collecting dust discharged from the angle duct mechanism is provided on a side panel on the dust collecting drawer.

[0014] A working method of an energy-saving automatic opening and closing heat dissipation passive distribution box comprises the following steps:

[0015] S1, by setting that when the temperature sensor detects that the temperature inside the passive distribution box is greater than T1, T2, and T3 respectively, and T1<T2<T3, the energy-saving automatic cooling mode, the accelerated active cooling mode, and the internal circulation accelerated active cooling mode are triggered respectively; when the temperature is greater than or equal to T1 and less than T2, the energy-saving automatic cooling mode is started, the temperature sensor transmits the temperature signal to the temperature monitoring controller, and the temperature monitoring controller controls the electromagnetic control valve to open;

[0016] S2. After the electromagnetic control valve is opened, the evaporative medium storage box discharges the evaporative heat-absorbing medium to the evaporative medium cotton. The evaporative heat-absorbing medium diffuses and evaporates on the evaporative medium cotton to absorb heat. The heat exchange plate installed on the inner side of the evaporative medium cotton continuously conducts the heat inside the passive distribution box to the evaporative medium cotton. The heat absorbed by evaporation rises from the side plate evaporation chamber to the top plate air duct and is finally discharged from the top of the wind box, thus achieving the effect of natural evaporation and cooling, greatly reducing the energy consumption of automatic cooling.

[0017] S3, when the temperature is greater than or equal to T2 and less than T3, the ventilation unit is controlled to draw air, so as to accelerate the air flow in the side plate evaporation chamber and the top plate air duct, increase the evaporation efficiency of the evaporation medium on the evaporation medium cotton, and positively promote the heat exchange plate and the air inside the passive distribution box to exchange heat, thereby improving the heat exchange efficiency and quickly cooling down;

[0018] S4. When the temperature is greater than or equal to T3, the servo motor is controlled to drive the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the angular internal circulation wind tube to rotate 90 degrees, so that the upper air outlet is vertically upward, and the lower air outlet is rotated to a horizontal angle, and its bottom active edge is tangent to one side of the internal circulation wind tube groove, so as to achieve the effect of internal circulation sealing, and then the multiple groups of turbofan groups installed in the lower air outlet are controlled to rotate to extract air. The lower air outlet is also equipped with the dust filter. After the inhaled air is filtered, it is ejected from the upper air outlet to one side of the inner side of the passive distribution box. The airflow circulates in the passive distribution box and passes through the surfaces of the heat exchange plates on the left and right sides to undergo heat exchange, which greatly improves the heat exchange and cooling efficiency while achieving the effect of dust removal in the passive distribution box.

[0019] S5. When the temperature drops less than T3, the multiple turbofan groups are controlled to stop running, and then the servo motor is controlled to drive the second bevel gear to rotate, and the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the angular internal circulation wind tube to rotate 90 degrees in the opposite direction and reset in the internal circulation wind tube slot, and then the multiple turbofan groups are opened and closed for a short time to rotate in the opposite direction to blow the dust on the dust filter net to the dust collecting chamber for deposition;

[0020] S6. When the dust in the dust collecting chamber needs to be cleaned regularly, the dust collecting drawer only needs to be pulled out to clean the dust.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] (1) In the present invention, a connected side panel evaporation chamber and a top panel air duct are provided in the side panels of the electric box on both sides, i.e., the top panel. An evaporation medium cotton and a heat exchange plate are installed on the inner side of the passive distribution box facing the side panel evaporation chamber. The inner side of the heat exchange plate is in direct contact with the air inside the passive distribution box, and the inner side surface is provided with vertical inner stripes to increase the contact area. An evaporation medium cotton is installed on the outer side surface. The top of the evaporation medium cotton is connected to the bottom of multiple groups of evaporation medium delivery pipes. The upper ends of the multiple groups of evaporation medium delivery pipes are collected at the evaporation medium outer header. The evaporation medium outer header is connected to the evaporation medium storage box. The temperature control and evaporation medium supply system is used to switch different heat dissipation and cooling modes according to different temperatures in the box. An exhaust mechanism for controlling the wind speed flow of the side panel evaporation chamber and the top panel air duct is installed on the top panel of the electric box. A hidden The angled duct mechanism accelerates the internal circulation heat exchange and dust removal. At the same time, the passive distribution box is equipped with a temperature control and evaporation medium supply system. The angled duct mechanism rotates the angled internal circulation duct by 90 degrees so that the upper air outlet is vertically facing the upper side of the box, and the lower air outlet is in the internal circulation duct groove. The two air outlets are at an angle of 90 degrees, and slopes are provided on the inner sides facing each other. The lower air outlet filters while exhausting air. When the internal circulation is ended and reset, the top surface of the upper air outlet is flush and sealed with the top surface of the bottom plate of the electric box, and the lower air outlet faces the dust collecting chamber at the bottom. The dust is blown into the dust collecting chamber by controlling the reverse blowing of the turbofan group. The above mode of heat transfer and automatic heat dissipation and cooling without direct contact with the air in the passive distribution box avoids the environmental impact of the distribution box in harsh places, purifies the air inside the distribution box, and extends the service life of the equipment.

[0023] (2) In the present invention, three automatic heat dissipation and cooling modes are provided on the temperature monitoring controller: energy-saving automatic cooling mode, accelerated active cooling mode, and internal circulation accelerated active cooling mode, which correspond to the temperature trigger points T1, T2, and T3 in the passive distribution box respectively, and T1<T2<T3. The distribution box is between T1 and T2 most of the time in the working state. At this time, the energy-saving automatic cooling mode is adopted, and the electromagnetic control valve is controlled to open by the temperature monitoring controller. The evaporative heat-absorbing medium in the evaporative medium storage box flows to the evaporative medium cotton on both sides through the evaporative medium delivery pipe, absorbs the heat on the heat exchange plate through evaporation, and the heat exchange plate exchanges heat with the air in the box. The cooling effect can be achieved without the use of mechanical devices to rotate ventilation and heat dissipation. When the load of the distribution box increases and the temperature in the box is between T2 and T3, the accelerated active cooling mode is automatically started. The method only needs to control multiple ventilation units in the wind box to exhaust air, increase the indoor air flow of the side panel evaporation room, accelerate the evaporation amount, and positively promote the heat exchange rate between the evaporation medium cotton and the heat exchange plate. At the same time, the heat exchange plate accelerates the heat exchange with the air inside the passive distribution box to achieve the effect of accelerating the cooling inside the passive distribution box; when the load of the distribution box increases sharply, the internal temperature of the passive distribution box rises sharply, and the temperature inside the box is greater than or equal to T3, the air circulation flow speed in the passive distribution box is accelerated by controlling the angle internal circulation wind tube, positively promoting the increase of air and the efficiency of the outside of the heat exchange plate, and quickly reducing the air temperature in the passive distribution box. The three modes of automatic control switching mentioned above can realize automatic adjustment of heat dissipation of the passive distribution box, and convert different modes according to different temperature conditions, which saves energy consumption to the greatest extent while ensuring the efficiency of automatic heat dissipation and cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The stereoscopic embodiment of the present invention provides Figure 1 ;

[0025] Figure 2 The stereoscopic embodiment of the present invention provides Figure 2 ;

[0026] Figure 3 A three-dimensional diagram of the cabinet door and waterproof groove plate removed provided in an embodiment of the present invention;

[0027] Figure 4 A half-cut perspective view of the top plate of an electrical box provided in an embodiment of the present invention;

[0028] Figure 5 A half-cut perspective view of a side panel of an electric box provided in an embodiment of the present invention;

[0029] Figure 6 A three-dimensional diagram of the installation of the side panel of the electric box provided in an embodiment of the present invention;

[0030] Figure 7 A three-dimensional diagram of a heat exchange mechanism provided by an embodiment of the present invention;

[0031] Figure 8 The local stereoscopic embodiment of the present invention provides Figure 1 ;

[0032] Fig. 9 A three-dimensional diagram of the installation of the angled air duct mechanism and the bottom plate of the electrical box provided in an embodiment of the present invention;

[0033] Fig.10 A three-dimensional diagram of an angled air duct mechanism and an electrical box base provided in an embodiment of the present invention;

[0034] Fig.11 A detached stereoscopic view of the angled air duct mechanism and the dustproof mounting frame provided in an embodiment of the present invention.

[0035] In the figure: 1, passive distribution box; 2, side plate of the box; 201, air inlet guide hole; 202, guide groove; 203, clamping rail; 3, top plate of the box; 4, evaporation chamber cover; 5, wind box; 6, waterproof trough plate; 7, ventilation unit; 8, evaporation medium storage box; 9, temperature monitoring controller; 901, power supply; 10, top plate air duct; 11, side plate evaporation chamber; 12, evaporation medium delivery pipe; 13, evaporation medium cotton; 14, evaporation medium outer header; 15, electromagnetic control valve; 16, positioning nail; 17, heat exchange Replacement plate; 1701, inner stripes; 1702, guide rail tooth grooves; 18, temperature sensor; 19, electrical box bottom plate; 20, inner circulation air duct groove; 21, inner circulation air duct; 22, upper air outlet; 23, lower air outlet; 24, mounting frame; 25, turbofan group; 26, dustproof mounting frame; 27, dustproof filter; 28, drive unit mounting groove; 29, first bevel gear; 30, second bevel gear; 31, servo motor; 32, electrical box base; 33, dust collection chamber; 34, dust collection drawer; 35, ventilation filter window. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] like Figure 1-11As shown, an energy-saving automatic opening and closing heat dissipation passive distribution box includes a passive distribution box 1 and two side panels 2, a top panel 3 and a bottom panel 19 contained therein. The two side panels 2 and the top panel 3 are respectively provided with a connected side panel evaporation chamber 11 and a top panel air duct 10 on the inner side. A heat exchange mechanism for cooling the inside of the passive distribution box 1 is installed on the side panel 2 of the electric box located inside the side panel evaporation chamber 11. At the same time, a temperature control and evaporation medium supply system for providing an evaporation heat absorption medium for the heat exchange mechanism is installed on the passive distribution box 1. The evaporation heat absorption medium can be water or Fluorocarbon compounds with a boiling point of 50-60 degrees are non-toxic, non-polluting and non-corrosive to metals. They are selected according to the importance of the place of use. Water is relatively cheap and can be used in special places with low general requirements. The passive distribution box 1 is equipped with a hidden angle-shaped air duct mechanism that accelerates internal circulation heat exchange and dust removal. A dust collecting mechanism is installed below the angle-shaped air duct mechanism. The above mechanism can automatically switch different heat dissipation and cooling modes according to the temperature inside the passive distribution box 1, saving energy while avoiding corrosive dust particles from the outside from entering the box, and realizing the function of purifying the inward air.

[0038] Principle of automatic heat dissipation and cooling by heat exchange:

[0039] A connected side plate evaporation chamber 11 and a top plate air duct 10 are provided in the side plates 2, i.e., the top plates, of the electric box on both sides. An evaporation medium cotton 13 and a heat exchange plate 17 are installed on the inner side of the passive distribution box 1 in the side plate evaporation chamber 11. The inner side of the heat exchange plate 17 is in direct contact with the air inside the passive distribution box 1, and the inner side surface is provided with vertical inner stripes 1701 for increasing the contact area. The outer side surface is installed with evaporation medium cotton 13. The top of the evaporation medium cotton 13 is connected to the bottom of multiple groups of evaporation medium delivery pipes 12. The upper ends of the multiple groups of evaporation medium delivery pipes 12 are collected in the evaporation medium outer header 14. The evaporation medium outer header 14 is connected to the evaporation medium storage box 8. The temperature control and evaporation medium supply system is used to switch different heat dissipation and cooling modes according to different temperatures in the box. There is an exhaust mechanism for controlling the wind speed flow in the side plate evaporation chamber 11 and the top plate air duct 10. A hidden angle-type wind tube mechanism with accelerated internal circulation heat exchange and dust removal is installed on one side of the bottom plate 19 of the electric box. At the same time, a temperature control and evaporation medium supply system is installed on the passive distribution box 1. The angle-type wind tube mechanism rotates the angle-type internal circulation wind tube 21 90 degrees so that the upper air outlet 22 is vertically facing the upper side of the box, and the lower air outlet 23 is in the internal circulation wind tube groove 20. The two air outlets form an angle of 90 degrees, and slopes are provided on the inner sides facing each other. The lower air outlet draws air in the box from the bottom of the passive distribution box 1 through the upper air outlet 22 and blows it to the upper heat exchange plate 17. Then, it circulates through the top to the heat exchange plate 17 on the other side for heat exchange, and then flows down to the bottom and returns to the lower air outlet 23, thereby realizing internal circulation heat exchange and cooling.

[0040] Energy-saving automatic control heat dissipation and cooling principle:

[0041] By setting three automatic heat dissipation and cooling modes on the temperature monitoring controller 9: energy-saving automatic cooling mode, accelerated active cooling mode, and internal circulation accelerated active cooling mode, which correspond to the temperature trigger points T1, T2, and T3 in the passive distribution box 1 respectively, and T1<T2<T3. The distribution box is between T1 and T2 most of the time in the working state. At this time, the energy-saving automatic cooling mode is adopted, and the electromagnetic control valve 15 is controlled to open by the temperature monitoring controller 9. The evaporative heat-absorbing medium in the evaporative medium storage box 8 flows to the evaporative medium cotton 13 on both sides through the evaporative medium delivery pipe 12, and absorbs the heat on the heat exchange plate 17 through evaporation. The heat exchange plate 17 exchanges heat with the air in the box, and the cooling effect can be achieved without using a mechanical device to rotate for ventilation and heat dissipation; when the load of the distribution box increases and the temperature in the box is between T2 and T3, the accelerated active cooling mode is automatically started at this time, and only the evaporative heat-absorbing medium in the evaporative medium storage box 8 needs to be turned on. By controlling multiple ventilation units 7 in the wind box to exhaust air, the air flow in the side plate evaporation chamber 11 is increased, the evaporation amount is accelerated, and the heat exchange rate between the evaporation medium cotton 13 and the heat exchange plate 17 is positively promoted. At the same time, the heat exchange plate 17 accelerates the heat exchange with the air inside the passive distribution box 1, thereby achieving the effect of accelerating the cooling of the passive distribution box 1; when the load of the distribution box increases sharply, the internal temperature of the passive distribution box 1 rises sharply, and the temperature inside the box is greater than or equal to T3, the angled internal circulation wind tube 21 is controlled to accelerate the internal circulation flow speed of the air in the passive distribution box 1, and positively promote the increase of the air and the outside efficiency of the heat exchange plate, and quickly reduce the air temperature in the passive distribution box 1. The three modes of automatic control switching mentioned above are used to realize automatic adjustment of heat dissipation of the passive distribution box, and different modes are converted according to different temperature conditions, which saves energy consumption to the greatest extent while ensuring the efficiency of automatic heat dissipation and cooling.

[0042] like Figure 3-5 As shown in Figure 7, the heat exchange mechanism includes multiple groups of evaporative medium delivery pipes 12, evaporative medium cotton 13 with vertical folds on the outer side, a heat exchange plate 17 and an exhaust mechanism. The material of the evaporative medium delivery pipe 12 can be selected as a copper tube with good thermal conductivity. Because the temperature can be reduced in the top plate air duct 10, it is only necessary to set the inner side plate of the electrical box top plate 3 as a heat conductive material.

[0043] like Figure 3-5As shown in Figure 7, the evaporation medium cotton 13 with a vertically wrinkled outer side surface is installed on a side surface of the heat exchange plate 17 located in the side plate evaporation chamber 11 through multiple groups of positioning nails 16. The positioning nails 16 are provided to increase the stability of the installation combination of the evaporation medium cotton 13 and the heat exchange plate 17. The evaporation medium cotton 13 can be selected from sponges or other cotton materials with different thicknesses and porosities according to actual conditions. The side plate evaporation chamber 11 in the side plate 2 of the electric box is connected to the inside of the passive distribution box 1, and clamping guide rails 203 are symmetrically provided on both sides close to the inside of the passive distribution box 1. The front and rear sides of the heat exchange plate 17 are installed on the clamping guide rails by symmetrically providing guide rail tooth grooves 1702. 203, and at the same time, a vertical inner stripe 1701 for increasing the contact area with the air is provided on the inner side surface of the heat exchange plate 17, the side plate evaporation chamber 11 located above the outer side of the clamping guide rail 203 is connected to the top plate air duct 10, and the top of the evaporation medium cotton 13 is connected to the bottom end of multiple groups of evaporation medium delivery pipes 12, and the upper parts of the multiple groups of evaporation medium delivery pipes 12 are installed in parallel in the top plate air duct 10 and converge into the evaporation medium outer header 14, the evaporation medium outer header 14 penetrates the electric box top plate 3 and is connected to the evaporation medium storage box 8 included in the temperature control and evaporation medium supply system, the evaporation medium outer header 14 is made of heat insulation material, and an exhaust mechanism is installed in the middle of the electric box top plate 3.

[0044] like Figure 3-5 As shown, the exhaust mechanism includes a bellows 5, a waterproof slot plate 6 and a ventilation unit 7. The bellows 5 is connected to the top plate air duct 10, and a plurality of ventilation units 7 for exhaust are installed inside. A waterproof slot plate 6 with exhaust and waterproof functions is installed on the top of the bellows 5. An evaporative medium storage box 8 included in the temperature control and evaporative medium supply system is installed on one side of the bellows 5. A plurality of air inlet guide holes 201 penetrating the electric box side plate 2 are provided at the bottom of the side plate evaporation chamber 11. A plurality of guide grooves 202 are provided on the electric box side plate 2 at the bottom of the side plate evaporation chamber 11 connected to the air inlet guide holes 201. The air inlet guide holes 201 are provided to allow air to flow for evaporative heat dissipation, and the guide grooves 202 are provided to prevent the evaporative heat-absorbing medium from accumulating too much at the bottom and penetrating into the box.

[0045] like Figure 1 and 3-6, the temperature control and evaporative medium supply system comprises an evaporative medium storage box 8, a temperature monitoring controller 9, a power supply 901, an evaporative medium outer header 14, an electromagnetic control valve 15 and a temperature sensor 18, the temperature monitoring controller 9 and the power supply 901 are installed on the outer side of the electric box side panel 2, the electromagnetic control valve 15 is installed on the evaporative medium outer header 14, the temperature sensor 18 is installed on the inner side panel of the passive distribution box 1, the power supply 901 is electrically connected to the above-mentioned electrical equipment, the output end of the temperature sensor 18 is electrically connected to the input end of the temperature monitoring controller 9, the output end of the temperature monitoring controller 9 is electrically connected to the input end of the electromagnetic control valve 15, the monitoring temperature signal is transmitted to the temperature monitoring controller 9 through the temperature sensor 18, and the temperature monitoring controller 9 performs logical judgment and starts different heat dissipation modes.

[0046] like Figure 8-11 As shown, the angular air duct mechanism includes an angular internal circulation air duct 21, a turbofan group 25, a dustproof mounting frame 26, a dustproof filter 27 and a driving mechanism. The left end of the electrical box bottom plate 19 is provided with an internal circulation air duct groove 20 through which the internal circulation air duct 21 is installed, and the internal circulation air duct 21 can be rotated 0-90 degrees in the internal circulation air duct groove 20. The internal circulation air duct 21 includes an upper air outlet 22 and a lower air outlet 23, and the upper air outlet 22 and the lower air outlet 23 are at an angle of 90 degrees, and The inner side facing each other is provided with a slope and the long side is fitted with one side of the inner circulation air duct groove 20 when it is rotated to it. A turbofan group 25 is installed in the lower air outlet 23 through a mounting frame 24. A dustproof mounting frame 26 is installed on the lower air outlet 23 located on the outer side of the turbofan group 25. A dustproof filter 27 is installed on the dustproof mounting frame 26. The turbofan group 25 is controlled to extract air and then it is discharged through the upper air outlet 22. The symmetrical angular inner circulation air duct 21 is designed to fit the angle path of the circulating air in the box to accelerate the flow of circulating air.

[0047] like Figure 8 , 9 As shown, the driving mechanism includes a first bevel gear 29, a second bevel gear 30 and a servo motor 31. A driving unit mounting groove 28 is provided on the bottom plate 19 of the electrical box at one end of the inner circulation air duct groove 20. The inner section connecting shaft of the first bevel gear 29 passes through and is connected to the center of the cylinder at one end of the inner circulation air duct 21. The second bevel gear 30 is meshed and installed with the first bevel gear 29. The bottom end of the second bevel gear 30 is fixedly installed on the output end of the servo motor 31. By controlling the servo motor 31 to drive the first bevel gear 29 and indirectly drive the second bevel gear 30 to rotate, the angle of the angular inner circulation air duct 21 is finally controlled to ensure the sealing inside the box and the accuracy of the blowing angle when the turbofan group 25 in the angular inner circulation air duct 21 is exhausting air.

[0048] like Figure 9-11As shown, an electric box base 32 is installed at the bottom of the electric box bottom plate 19, and a dust collecting chamber 33 for storing dust collected by the angle blower mechanism is provided on the electric box base 32. A dust collecting drawer 34 is installed on the dust collecting chamber 33, and a ventilation filter window 35 for collecting dust discharged from the angle blower mechanism and relieving pressure is provided on a side panel on the dust collecting drawer 34.

[0049] A working method of an energy-saving automatic opening and closing heat dissipation passive distribution box comprises the following steps:

[0050] S1, by setting that when the temperature sensor 18 detects that the temperature in the passive distribution box 1 is respectively greater than T1, T2, and T3, and T1<T2<T3, the energy-saving automatic cooling mode, the accelerated active cooling mode, and the internal circulation accelerated active cooling mode are triggered respectively. When the temperature is greater than or equal to T1 and less than T2, the energy-saving automatic cooling mode is started, and the temperature sensor 18 transmits the temperature signal to the temperature monitoring controller 9, and the temperature monitoring controller 9 controls the electromagnetic control valve 15 to open;

[0051] S2, after the electromagnetic control valve 15 is opened, the evaporative medium storage box 8 discharges the evaporative heat-absorbing medium to the evaporative medium cotton 13, and the evaporative heat-absorbing medium diffuses and evaporates on the evaporative medium cotton 13 to absorb heat. The heat exchange plate 17 installed inside the evaporative medium cotton 13 continuously conducts the heat inside the passive distribution box 1 to the evaporative medium cotton 13, and the heat absorbed by evaporation rises from the side plate evaporation chamber 11 to the top plate air duct 10, and is finally discharged from the top of the wind box 5, finally achieving the effect of natural evaporation cooling, which greatly reduces the energy consumption of automatic cooling;

[0052] S3, when the temperature is greater than or equal to T2 and less than T3, the ventilation unit 7 is controlled to draw air, the air flow in the side plate evaporation chamber 11 and the top plate air duct 10 is accelerated, the evaporation efficiency of the evaporation medium on the evaporation medium cotton 13 is increased, and the heat exchange plate 17 is positively pushed to exchange heat with the air inside the passive distribution box 1, thereby improving the heat exchange efficiency and quickly cooling down;

[0053] S4, when the temperature is greater than or equal to T3, the second bevel gear 30 is driven to rotate by controlling the servo motor 31, and the second bevel gear 30 drives the first bevel gear 29 to rotate, and the first bevel gear 29 drives the angular internal circulation wind tube 21 to rotate 90 degrees, so that the upper air outlet 22 is vertically upward, and the lower air outlet 23 is rotated to a horizontal angle, and its bottom movable edge is tangent to a side surface of the internal circulation wind tube groove 20, which plays the effect of internal circulation sealing, and then the multiple groups of turbofan groups 25 installed in the lower air outlet 23 are controlled to rotate to extract air, and a dust filter 27 is installed on the lower air outlet 23 at the same time. After the inhaled air is filtered, it is ejected from the upper air outlet 22 to one side of the inner side of the passive distribution box 1, and the airflow circulates in the passive distribution box 1 through the surfaces of the left and right heat exchange plates 17 to exchange heat, which greatly improves the heat exchange and cooling efficiency while achieving the effect of dust removal in the passive distribution box 1;

[0054] S5, when the temperature drops less than T3, the multiple turbofan groups 25 are controlled to stop running, and then the servo motor 31 is controlled to drive the second bevel gear 30 to rotate, and the second bevel gear 30 drives the first bevel gear 29 to rotate, and the first bevel gear 29 drives the angle-shaped internal circulation wind tube 21 to rotate 90 degrees in the opposite direction and reset in the internal circulation wind tube slot 20, and then the multiple turbofan groups 25 are opened and closed for a short time to rotate in the opposite direction to blow the dust on the dust filter 27 to the dust collecting chamber 33 for deposition;

[0055] S6. When the dust in the dust collecting chamber 33 needs to be cleaned regularly, the dust collecting drawer 34 only needs to be pulled out to clean the dust.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An energy-saving, automatic opening and closing heat dissipation passive distribution box, comprising a passive distribution box and its two side panels, a top plate and a bottom plate, characterized in that: The side panels of the electric box on both sides and the inner side of the top panel of the electric box are respectively provided with connected side panel evaporation chambers and top panel air ducts, and the side panels of the electric box located inside the side panel evaporation chambers are provided with heat exchange mechanisms for cooling the inside of the passive distribution box, and at the same time, the passive distribution box is provided with a temperature control and evaporation medium supply system for providing evaporation heat absorption medium for the heat exchange mechanism, and the passive distribution box is provided with a hidden angle-shaped duct mechanism for accelerating internal circulation heat exchange and dust removal, and a dust collection mechanism is provided below the angle-shaped duct mechanism; The angular duct mechanism comprises an angular internal circulation duct, a turbofan group, a dustproof mounting frame, a dustproof filter and a driving mechanism; the internal circulation duct is installed at the left end of the bottom plate of the electrical box by providing a penetrating internal circulation duct groove, and the internal circulation duct can be rotated and converted in the internal circulation duct groove by 0-90 degrees; the internal circulation duct comprises an upper air outlet and a lower air outlet; the upper air outlet and the lower air outlet form an included angle of 90 degrees, and the inner sides facing each other are provided with a slope and the long side is fitted with one side of the inner circulation duct groove when rotating to the inner circulation duct groove; the turbofan group is installed in the lower air outlet by providing a mounting frame, the dustproof mounting frame is installed on the lower air outlet located on the outer side of the turbofan group, and the dustproof filter is installed on the dustproof mounting frame; An electric box base is installed at the bottom of the electric box bottom plate, and a dust collecting chamber for accumulating dust collected by the angle-shaped air duct mechanism is provided on the electric box base, and a dust collecting drawer is installed on the dust collecting chamber, and a ventilation filter window for collecting dust discharged from the angle-shaped air duct mechanism and releasing pressure is provided on a side plate on the dust collecting drawer; The turbofan group rotates in the opposite direction to blow the dust on the dust filter into the dust collecting chamber.

2. According to claim 1, an energy-saving passive distribution box with automatic opening and closing for heat dissipation is characterized in that: The heat exchange mechanism comprises a plurality of groups of evaporation medium delivery pipes, evaporation medium cotton with vertically folded outer surfaces, a heat exchange plate and an exhaust mechanism.

3. The energy-saving automatic opening and closing heat dissipation passive distribution box according to claim 2 is characterized in that: The evaporation medium cotton with a vertical folded outer surface is installed on a side surface of the heat exchange plate located in the side plate evaporation chamber through multiple groups of positioning nails, the side plate evaporation chamber in the side plate of the electric box is connected to the interior of the passive distribution box, and clamping guide rails are symmetrically provided on both sides close to the interior of the passive distribution box, the front and rear sides of the heat exchange plate are installed on the clamping guide rails by symmetrically providing guide rail grooves, and at the same time, vertical inner stripes are provided on the inner side of the heat exchange plate to increase the contact area with the air, the side plate evaporation chamber located above the outer side of the clamping guide rail is connected to the top plate air duct, the top of the evaporation medium cotton is connected to the bottom ends of multiple groups of evaporation medium delivery pipes, the upper parts of the multiple groups of evaporation medium delivery pipes are installed in parallel in the top plate air duct and converge into the evaporation medium outer header, the evaporation medium outer header passes through the top plate of the electric box and is connected to the evaporation medium storage box included in the temperature control and evaporation medium supply system, and the exhaust mechanism is installed in the middle of the top plate of the electric box.

4. The energy-saving automatic opening and closing heat dissipation passive distribution box according to claim 3 is characterized in that: The exhaust mechanism includes a bellows, a waterproof trough plate and a ventilation unit. The bellows is connected to the top plate air duct and has multiple ventilation units installed therein for exhausting air. The waterproof trough plate with exhaust and waterproof functions is installed on the top of the bellows. An evaporative medium storage box included in the temperature control and evaporative medium supply system is installed on one side of the bellows. Multiple groups of air inlet guide holes penetrating the side plates of the electric box are provided at the bottom of the side plate evaporation chamber. Multiple groups of guide grooves are provided on the side plates of the electric box at the bottom of the side plate evaporation chamber connected to the air inlet guide holes.

5. The energy-saving passive distribution box with automatic opening and closing for heat dissipation according to claim 4 is characterized in that: The temperature control and evaporative medium supply system comprises an evaporative medium storage box, a temperature monitoring controller, a power supply, an evaporative medium outer header, an electromagnetic control valve and a temperature sensor. The temperature monitoring controller and the power supply are installed on the outer side of the electrical box side panel, the electromagnetic control valve is installed on the evaporative medium outer header, the temperature sensor is installed on the inner side panel of the passive distribution box, the power supply is electrically connected to the electrical equipment, the output end of the temperature sensor is electrically connected to the input end of the temperature monitoring controller, and the output end of the temperature monitoring controller is electrically connected to the input end of the electromagnetic control valve.

6. The energy-saving automatic opening and closing heat dissipation passive distribution box according to claim 5 is characterized in that: The driving mechanism includes a first bevel gear, a second bevel gear and a servo motor. A driving unit mounting groove is provided on the bottom plate of the electrical box at one end of the inner circulation air duct groove. The inner section connecting shaft of the first bevel gear passes through and is connected to the center of the cylinder at one end of the inner circulation air duct. The second bevel gear is meshed and installed with the first bevel gear, and the bottom end of the second bevel gear is fixedly installed on the output end of the servo motor.

7. The working method of an energy-saving automatic opening and closing heat dissipation passive distribution box according to claim 6 is characterized in that: The following steps are involved: S1, by setting that when the temperature sensor detects that the temperature in the passive distribution box is greater than T1, T2, and T3 respectively, and T1<T2<T3, the energy-saving automatic cooling mode, the accelerated active cooling mode, and the internal circulation accelerated active cooling mode are triggered respectively. When the temperature is greater than or equal to T1 and less than T2, the energy-saving automatic cooling mode is started, and the temperature sensor transmits the temperature signal to the temperature monitoring controller, and the temperature monitoring controller controls the electromagnetic control valve to open; S2. After the electromagnetic control valve is opened, the evaporative medium storage box discharges the evaporative heat-absorbing medium onto the evaporative medium cotton. The evaporative heat-absorbing medium diffuses and evaporates on the evaporative medium cotton to absorb heat. The heat exchange plate installed on the inner side of the evaporative medium cotton continuously transfers the heat inside the passive distribution box to the evaporative medium cotton. The heat absorbed by evaporation rises from the side plate evaporation chamber to the top plate air duct and is finally discharged from the top of the wind box. S3, when the temperature is greater than or equal to T2 and less than T3, the ventilation unit is controlled to draw air, accelerating the air flow in the side plate evaporation chamber and the top plate air duct, increasing the evaporation efficiency of the heat-absorbing medium on the evaporation medium cotton, and positively promoting the heat exchange plate and the air inside the passive distribution box to exchange heat; S4, when the temperature is greater than or equal to T3, the second bevel gear is driven to rotate by controlling the servo motor, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the angular internal circulation air duct to rotate 90 degrees, so that the upper air outlet is vertically upward, and the lower air outlet is rotated to a horizontal angle, and its bottom active edge is tangent to one side of the internal circulation air duct groove, which plays the effect of internal circulation sealing, and then the multiple groups of turbofans installed in the lower air outlet are controlled to rotate to extract air. A dust filter is also installed on the lower air outlet. After the inhaled air is filtered, it is ejected from the upper air outlet to one side of the inner side of the passive distribution box. The airflow circulates in the passive distribution box and passes through the surfaces of the left and right heat exchange plates to exchange heat; S5, when the temperature drops less than T3, the multiple turbofan groups are controlled to stop running, and then the servo motor is controlled to drive the second bevel gear to rotate, the second bevel gear drives the first bevel gear to rotate, and the first bevel gear drives the angular internal circulation wind tube to rotate 90 degrees in the opposite direction and reset in the internal circulation wind tube slot, and then the multiple turbofan groups are opened and closed for a short time to rotate in the opposite direction to blow the dust on the dust filter net to the dust collecting chamber for deposition; S6. When it is necessary to clean the dust in the dust collection chamber regularly, you only need to pull out the dust collection drawer to clean the dust.

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