Electrical automation energy-saving control equipment for building

Abstract

The invention discloses building electrical automation energy-saving control equipment, and relates to the field of electrical equipment, the building electrical automation energy-saving control equipment comprises an electrical control box and a heat dissipation linkage mechanism used for assisting cooling, two side walls of the electrical control box are respectively provided with an exhaust hole and three strip-shaped holes, and the inner side wall of the electrical control box is provided with a heat dissipation fan at the exhaust hole; the heat dissipation fan is connected with a control circuit in the electrical control box through a wire, the heat dissipation linkage mechanism is composed of a temperature difference driving assembly, an auxiliary ventilation assembly and a moisture absorption assembly, and the temperature difference driving assembly is used for sensing the temperature change in the electrical control box and starting the heat dissipation fan and the auxiliary ventilation assembly to conduct automatic cooling control; according to the heat dissipation device, the heat dissipation fan is used for discharging hot air, the auxiliary ventilation assembly is matched to introduce external air, a ventilation channel is formed, heat dissipation is accelerated, the problem that heat of equipment is generated too fast is solved more effectively, and the overall heat dissipation efficiency is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of electrical equipment, and specifically relates to a building electrical automation energy-saving control device. Background Art

[0002] With the rapid development of electrical automation technology, its application in many fields has become increasingly widespread and has become a key part of high-tech industries. As a typical device in the field of electrical automation, the control cabinet is designed in accordance with electrical wiring specifications, integrating switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal box or installed on a screen.

[0003] A building electrical automation energy-saving control device described in the prior art includes a base, and a cabinet body connected to the upper surface of the base. A rain-guiding mechanism is connected to the top end of the cabinet body, and a heat dissipation mechanism is connected to the inside of the cabinet body; a serpentine drainage channel is provided at one end of the cabinet body; the rain-guiding mechanism includes a sunshade top connected to the top end of the cabinet body, a water diversion component connected to the sunshade top, and the water outlet end of the water diversion component is connected to the water inlet end of the drain pipe.

[0004] Although the above technology has a heat dissipation mechanism composed of a heat dissipation fan and a temperature sensor, etc., if the heat generation speed of the electrical equipment in the cabinet is too fast, it may not be possible to dissipate heat in a timely and effective manner only by the heat dissipation fan. Especially in a high-temperature environment, the heat dissipation efficiency of the heat dissipation fan may decrease. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a building electrical automation energy-saving control device to solve the technical problems proposed in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A building electrical automation energy-saving control device includes an electrical control box and a heat dissipation linkage mechanism for assisting in cooling. Exhaust holes and three strip holes are respectively opened on both side walls of the electrical control box. A return frame is installed inside the electrical control box at the positions of the three strip holes. A vertical plate is provided on the side of the return frame away from the box wall. A heat dissipation fan is installed on the inner side wall of the electrical control box at the position of the exhaust hole. The heat dissipation fan is connected to the control circuit inside the electrical control box through a wire. A plurality of water-permeable holes are opened on one side of the bottom end of the electrical control box. A rain shield is installed on the outer wall of the electrical control box at the position of the exhaust hole. The heat dissipation linkage mechanism is composed of a temperature difference driving component, an auxiliary ventilation component, and a moisture absorption component. The moisture absorption component is arranged in the rectangular frame. The temperature difference driving component and the auxiliary ventilation component are both installed on the vertical plate. And the moisture absorption component, the auxiliary ventilation component, and the temperature difference driving component are all connected to the control circuit in the electrical control box through wires. The temperature difference driving component is used to sense the temperature change in the electrical control box and start the cooling fan and the auxiliary ventilation component for automatic cooling according to the temperature change. The auxiliary ventilation component is used to open and close the three strip-shaped holes to enhance the ventilation effect. The moisture absorption component is used to dehumidify the incoming humid air.

[0007] Specifically, in this technical solution, the temperature difference driving component includes a bimetallic strip. A groove is opened at the top end of the vertical plate. A lead screw is fixed at the center of the bottom of the groove. One end of the bimetallic strip is sleeved on the lead screw and its outer wall is in contact with the groove wall. A contact point is provided on the lower surface of the other end of the bimetallic strip. A horizontal plate is fixed on the outer wall of the vertical plate away from the rectangular frame and below the bimetallic strip. A microswitch that cooperates with the contact point is provided on the upper surface of the horizontal plate. The microswitch is connected to the control circuit in the electrical control box through a wire.

[0008] Specifically, in this technical solution, a contact sleeve is sleeved on the lead screw. The bottom end of the contact sleeve is in contact with the upper surface of the bimetallic strip. A hexagonal nut is provided at the top end of the lead screw. The hexagonal nut is screwed and fixed to the lead screw through threads. The bottom end of the hexagonal nut is in close contact with the top surface of the contact sleeve.

[0009] Specifically, in this technical solution, the auxiliary ventilation component includes an electric telescopic cylinder and three sealing plates. The three sealing plates are all arranged on the outer wall of the electrical control box. The three sealing plates are respectively located at the corresponding positions of the three strip-shaped holes. Both ends of the three sealing plates are fixedly connected with push plates through connecting rods. Moving plates are provided on both outer walls of the rectangular frame. The ends of the two moving plates penetrate through the side wall of the electrical control box and are fixed to the push plates by screws; Both lower surfaces of the other ends of the two moving plates are connected with a cross plate through a welded connecting block. The electric telescopic cylinder is fixed on the outer wall of the vertical plate by screws. The telescopic end of the electric telescopic cylinder penetrates through the vertical plate and is fixed to the cross plate by screws. The electric telescopic cylinder is connected to the control circuit in the electrical control box through a wire.

[0010] Specifically, in this technical solution, sealing gaskets are provided on the outer walls of the three sealing plates close to the strip-shaped holes. Chute grooves are opened on one side of the two moving plates close to the rectangular frame. Sliding blocks are fixed on both outer walls of the rectangular frame. The sliding blocks are in contact with the groove walls of the chute grooves and are slidably connected.

[0011] Specifically, in this technical solution, the moisture absorption component includes a shaft rod and a transmission shaft. A protective shell is fixed to the bottom of the rectangular frame. The shaft rod is rotatably installed at the inner top of the rectangular frame, and the transmission shaft is rotatably installed in the protective shell. A belt-shaped non-woven fabric is sleeved on the shaft rod and the transmission shaft. The two side walls of the non-woven fabric are spaced 2 cm from the inner wall of the rectangular frame. A plurality of rubber bumps are provided on the outer wall of the transmission shaft, and the rubber bumps are in frictional contact with the non-woven fabric.

[0012] Specifically, in this technical solution, a pressing shaft is rotatably installed inside the protective shell and below the transmission shaft. The outer wall of the pressing shaft is in close contact with the outer wall of the non-woven fabric. A protective cover is fixed to the side wall of the protective shell by screws. One end of each of the transmission shaft and the pressing shaft passes through the shell through a rotating shaft and is located inside the protective cover. Meshing gears are fixedly sleeved on the outer walls of the two rotating shafts. A driving motor is installed on the inner wall of the protective cover by screws. The output shaft of the driving motor is flange-connected to one of the rotating shafts. A water flow hole matching the water permeable hole is opened on the bottom wall of the protective shell.

[0013] Specifically, in this technical solution, mounting plates are fixed to both inner walls of the protective shell by screws. Two groups of electric heating tubes are symmetrically arranged between the two mounting plates. The two groups of electric heating tubes are respectively located on both sides of the non-woven fabric.

[0014] Specifically, in this technical solution, a filter screen is installed at the bottom opening of the rain shield by screws. The inner wall of the rain shield away from the exhaust hole is provided with a wind guiding inclined surface.

[0015] Specifically, in this technical solution, a humidity sensor is installed on one side of the inner wall of the rectangular frame close to the strip hole and is connected to the control circuit in the electrical control box through a wire.

[0016] To sum up, the present invention mainly has the following beneficial effects: By sensing the temperature change with a bimetal sheet, when the temperature in the electrical control box rises, the bimetal sheet is heated and bent, triggering a microswitch to start the cooling fan and the auxiliary ventilation component. The cooling fan discharges hot air, and at the same time, the strip holes are opened to introduce external air, jointly promoting air convection and accelerating heat dissipation, so as to more effectively cope with the problem of excessive heat generation of the equipment, improve the overall heat dissipation efficiency, and ensure the stable operation of the equipment; The belt-shaped non-woven fabric in the moisture absorption component can adsorb the moisture in the humid air entering the electrical control box, reduce the humidity in the box, prevent problems such as short circuits and corrosion of electrical equipment caused by excessive humidity, improve the reliability and service life of the equipment, and at the same time perform water squeezing and heating treatments on the wet non-woven fabric to achieve regeneration and reuse; Moreover, it has an energy-saving effect. For example, the bimetallic strip drives the cooling fan and the auxiliary ventilation component to start only when the temperature rises, and the electric heating tube and the drive motor in the moisture absorption component work only when the humidity of the non-woven fabric is relatively high, achieving operation on demand, improving the energy utilization efficiency, and having a good energy-saving effect. Brief Description of the Drawings

[0017] Figure 1 It is a front isometric structural schematic diagram of the overall device of the present invention; Figure 2 It is an oblique isometric structural schematic diagram of the overall device of the present invention; Figure 3 It is a front isometric structural schematic diagram of the interior of the device of the present invention; Figure 4 It is an oblique isometric structural schematic diagram of the interior of the device of the present invention; Figure 5 It is a front isometric structural schematic diagram of the electrical control box of the present invention; Figure 6 It is a front isometric structural schematic diagram of the cross-section of the rain shield of the present invention; Figure 7 It is a structural schematic diagram of the heat dissipation linkage mechanism of the present invention; Figure 8 Of the present invention Figure 7 Enlarged view at A in Figure 9 It is a front isometric structural schematic diagram of the auxiliary ventilation component of the present invention; Figure 10 It is an oblique isometric structural schematic diagram of the auxiliary ventilation component of the present invention.

[0018] Brief Description of the Drawings: 1. Electrical control box; 101. Water permeable holes; 102. Exhaust holes; 103. Strip-shaped holes; 104. Rain shield; 1041. Air guiding inclined surface; 1042. Filter screen; 105. Cooling fan; 2. Vertical plate; 201. Groove; 202. Lead screw; 3. U-shaped frame; 301. Protective shell; 302. Slide block; 4. Heat dissipation linkage mechanism; 5. Temperature difference driving component; 501. Bimetallic strip; 502. Abutting sleeve; 503. Hexagonal nut; 504. Horizontal plate; 5041. Microswitch; 6. Auxiliary ventilation component; 601. Electric telescopic cylinder; 602. Horizontal plate; 6021. Connecting block; 603. Moving plate; 6031. Slide groove; 604. Sealing plate; 605. Connecting rod; 606. Pushing plate; 7. Moisture absorption component; 701. Non-woven fabric; 702. Shaft rod; 703. Transmission shaft; 704. Extrusion shaft; 705. Gear; 706. Drive motor; 707. Protective shell; 708. Mounting plate; 7081. Electric heating tube. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0020] The embodiments of the present invention will be described below according to its overall structure.

[0021] In this embodiment, please refer to Figures 1 - 6 As shown in the figure, a building electrical automation energy-saving control device includes an electrical control box 1 and a heat dissipation linkage mechanism 4 for assisting in cooling. Exhaust holes 102 and three strip holes 103 are respectively formed on both side walls of the electrical control box 1. A return frame 3 is installed inside the electrical control box 1 at the positions of the three strip holes 103. A vertical plate 2 is provided on the side of the return frame 3 away from the box wall. A heat dissipation fan 105 is installed on the inner side wall of the electrical control box 1 at the position of the exhaust hole 102. The heat dissipation fan 105 is connected to the control circuit inside the electrical control box 1 through a wire. A plurality of water permeable holes 101 are formed on one side of the bottom end of the electrical control box 1. Support pads are fixed at the four corners of the bottom end of the electrical control box 1, so that there is a space between the water permeable holes 101 and the ground. A rain shield 104 is installed on the outer wall of the electrical control box 1 at the position of the exhaust hole 102. A filter screen 1042 is installed at the bottom opening of the rain shield 104 through screws. The filter screen 1042 can filter impurities to prevent dust from entering the interior of the electrical control box 1. The inner wall of the rain shield 104 away from the exhaust hole 102 is a wind guiding inclined surface 1041. The heat dissipation linkage mechanism 4 is composed of a temperature difference driving component 5, an auxiliary ventilation component 6 and a moisture absorption component 7. The moisture absorption component 7 is arranged in the return frame 3. The temperature difference driving component 5 and the auxiliary ventilation component 6 are both installed on the vertical plate 2. The moisture absorption component 7, the auxiliary ventilation component 6 and the temperature difference driving component 5 are all connected to the control circuit inside the electrical control box 1 through wires. The temperature difference driving component 5 is used to sense the temperature change inside the electrical control box 1 and start the heat dissipation fan 105 and the auxiliary ventilation component 6 for automatic cooling according to the temperature change. The auxiliary ventilation component 6 is used to open and close the three strip holes 103 to enhance the ventilation effect. The moisture absorption component 7 is used to dehumidify the incoming humid air. A humidity sensor is installed on the inner wall of the return frame 3 near the strip hole 103 and is connected to the control circuit inside the electrical control box 1 through a wire.

[0022] When the internal electrical components of the building electrical control box 1 are operating, heat is generated, causing the temperature to rise. After the temperature difference driving component 5 senses the temperature change, it automatically activates the cooling fan 105 and the auxiliary ventilation component 6. The cooling fan 105 discharges the heat through the exhaust hole 102, and the discharged hot air is discharged from the filter net 1042 under the guidance of the air guiding inclined plane 1041. At this time, the auxiliary ventilation component 6 will open three strip holes 103 to enhance the air circulation inside the electrical control box 1. At the same time, the moisture absorption component 7 dehumidifies the incoming air, and the humidity sensor monitors the moisture absorption part (the non-woven fabric 701 in the text) of the moisture absorption component 7 in real time. When the humidity exceeds the set threshold, the control circuit will automatically start the water squeezing and heating processes in the moisture absorption component 7 to ensure that the non-woven fabric 701 remains dry; During rainy days, the dripping rainwater will be intercepted by the rain shield 104 to prevent the rainwater from entering the box body through the exhaust hole 102. Since the rainwater itself has a low temperature, when the rainwater hits the box wall, it will exchange heat with the box wall and take away part of the heat, thereby reducing the temperature. At this time, the temperature difference driving component 5 does not activate the cooling fan 105, and only relies on the rainwater to cool down; Thus, the hot air is discharged by the cooling fan 105, and external air is introduced through the auxiliary ventilation component 6 to form a stronger air convection, accelerating the heat dissipation, so as to more effectively cope with the problem of too fast heat generation of the equipment, improve the overall heat dissipation efficiency, ensure the stable operation of the equipment, and the rain shield 104 can effectively prevent the rainwater from directly entering the electrical control box 1 through the exhaust hole 102, and can guide the air flow to enable the hot air to be discharged smoothly without affecting the heat dissipation effect.

[0023] Please refer to Figure 3 and Figure 7 As shown, the temperature difference driving component 5 includes a bimetallic strip 501. A groove 201 is opened at the top end of the vertical plate 2, and a lead screw 202 is fixed at the center of the bottom of the groove 201. One end of the bimetallic strip 501 is sleeved on the lead screw 202 and its outer wall is in contact with the wall of the groove 201. A contact is provided on the lower surface of the other end of the bimetallic strip 501. A horizontal plate 504 is fixed on the outer wall of the vertical plate 2 away from the looped frame 3 and below the bimetallic strip 501. A micro switch 5041 matching the contact is provided on the upper surface of the horizontal plate 504, and the micro switch 5041 is connected to the control circuit inside the electrical control box 1 through a wire; An abutting sleeve 502 is sleeved on the lead screw 202, the bottom end of the abutting sleeve 502 is in contact with the upper surface of the bimetallic strip 501, a hexagonal nut 503 is provided at the top end of the lead screw 202, the hexagonal nut 503 is screwed and fixed to the lead screw 202 through a thread, and the bottom end of the hexagonal nut 503 is in close contact with the top surface of the abutting sleeve 502.

[0024] When the temperature inside the electrical control box 1 rises, the bimetallic strip 501 is heated and bent, and its contact will touch the microswitch 5041, triggering the control circuit to start the cooling fan 105 and the auxiliary ventilation component 6, quickly exhausting the heat inside the box to prevent the equipment from overheating. When the temperature drops, the bimetallic strip 501 returns to its original state, the contact separates from the microswitch 5041, and the control circuit stops the cooling fan 105 and the auxiliary ventilation component 6 from operating, maintaining the temperature stability inside the box, ensuring the safe operation of the equipment in different environments, and then being able to respond to temperature changes in a timely manner to achieve automatic control of the heat dissipation process; When it is necessary to replace the bimetallic strip 501, the staff loosens the hexagon nut 503 with a tool, separates the abutting sleeve 502 from the bimetallic strip 501, then extracts the bimetallic strip 501, installs it again after replacing it with a new one, with simple operation and high maintenance efficiency.

[0025] Please refer to Figure 4 、 Figure 7 、 Figure 9 and Figure 10 As shown in, the auxiliary ventilation component 6 includes an electric telescopic cylinder 601 and three sealing plates 604. The three sealing plates 604 are all arranged on the outer wall of the electrical control box 1. The three sealing plates 604 are respectively located at the corresponding positions of the three strip-shaped holes 103. Both ends of the three sealing plates 604 are fixedly connected with push plates 606 through connecting rods 605. Moving plates 603 are provided on both outer walls of the return frame 3. The ends of the two moving plates 603 penetrate through the side wall of the electrical control box 1 and are fixedly connected with the push plates 606 by screws; On the lower surfaces of the other ends of the two moving plates 603, transverse plates 602 are connected through welded connecting blocks 6021. The electric telescopic cylinder 601 is fixedly installed on the outer wall of the vertical plate 2. The telescopic end of the electric telescopic cylinder 601 penetrates through the vertical plate 2 and is fixedly connected with the transverse plate 602 by screws. The electric telescopic cylinder 601 is connected to the control circuit inside the electrical control box 1 through a wire; Sealing gaskets are provided on the outer walls of the three sealing plates 604 close to the strip-shaped holes 103. Chutes 6031 are opened on the surfaces of the two moving plates 603 close to the return frame 3. Sliders 302 are fixedly installed on both outer walls of the return frame 3. The sliders 302 are in contact with the groove walls of the chutes 6031 and are slidably connected.

[0026] When the microswitch 5041 is triggered by the contact, the electric telescopic cylinder 601 starts, and its telescopic end pushes the cross plate 602 to move. The cross plate 602 drives two moving plates 603 to move through the connecting block 6021, so that the sliding groove 6031 moves along the slider 302. The slider 302 and the sliding groove 6031 can also play a role in supporting and guiding to ensure the stable sliding of the moving plate 603. When the two moving plates 603 move, they will drive the sealing plate 604 to move synchronously through the push plate 606 and the connecting rod 605, so that the three sealing plates 604 are separated from the strip holes 103, thereby forming a ventilation channel, accelerating the air circulation inside and outside the box, effectively reducing the temperature inside the box, and ensuring that the equipment can still operate stably in a high-temperature environment.

[0027] Please refer to Figure 3 、 Figure 7 and Figure 8 As shown in, the moisture absorption component 7 includes a shaft rod 702 and a transmission shaft 703. A protective shell 301 is fixed to the bottom of the return frame 3. The shaft rod 702 is rotatably installed at the inner top of the return frame 3, and the transmission shaft 703 is rotatably installed in the protective shell 301. A belt-shaped non-woven fabric 701 is sleeved on the shaft rod 702 and the transmission shaft 703. The two side walls of the non-woven fabric 701 are spaced 2 cm from the inner wall of the return frame 3. A plurality of rubber bumps are provided on the outer wall of the transmission shaft 703, and the rubber bumps are in frictional contact with the non-woven fabric 701. The non-woven fabric 701 penetrates through the bottom wall of the return frame 3 and the top wall of the protective shell 301. An extrusion shaft 704 is rotatably installed inside the protective shell 301 and below the transmission shaft 703. The outer wall of the extrusion shaft 704 is in close contact with the outer wall of the non-woven fabric 701. A protective shell 707 is fixed to the side wall of the protective shell 301 by screws. One end of each of the transmission shaft 703 and the extrusion shaft 704 passes through the shell through a rotating shaft and is located inside the protective shell 707. Meshing gears 705 are fixedly sleeved on the outer walls of the two rotating shafts. A driving motor 706 is installed on the inner wall of the protective shell 707 by screws. The output shaft of the driving motor 706 is flange-connected to one rotating shaft. A water flow hole matching the water permeable hole 101 is opened on the bottom wall of the protective shell 301. The non-woven fabric 701 has good air permeability and certain moisture absorption, and its resistance is relatively small, so the influence on air fluidity is also small. Mounting plates 708 are fixed to both inner walls of the protective shell 301 by screws. Two groups of electric heating tubes 7081 are symmetrically arranged between the two mounting plates 708, and the two groups of electric heating tubes 7081 are respectively located on both sides of the non-woven fabric 701.

[0028] After the strip hole 103 is opened, the external air enters the box body. First, it will pass through the filtration of the non-woven fabric 701 to remove the contained moisture. The moisture is adsorbed by the non-woven fabric 701, and the dry air continues to flow into the box body to reduce the humidity inside the box, prevent problems such as short circuits and corrosion of electrical equipment caused by excessive humidity, and improve the reliability and service life of the equipment. At this time, the humidity sensor monitors the humidity change of the non-woven fabric 701 in real time. When the humidity exceeds the set threshold, the drive motor 706 and the electric heating tube 7081 are started simultaneously. The output end of the drive motor 706 drives the transmission shaft 703 and the extrusion shaft 704 to rotate respectively through two meshing gears 705, driving the non-woven fabric 701 to move. At the same time, the transmission shaft 703 and the extrusion shaft 704 will perform two-way extrusion on the non-woven fabric 701 to promote the discharge of adsorbed moisture. The discharged moisture is discharged out of the box through the water flow holes and the water permeable holes 101. The electric heating tube 7081 quickly heats the non-woven fabric 701 to accelerate drying, ensuring that the non-woven fabric 701 continuously and efficiently absorbs moisture, maintaining a low-humidity environment inside the box, and ensuring the stable operation of the equipment.

[0029] The working principle of the present invention is as follows: When the internal electrical components of the building electrical control box 1 are operating, heat will be generated, resulting in a temperature rise. When the temperature inside the electrical control box 1 rises, the bimetallic strip 501 is heated and bent, and its contacts will contact the microswitch 5041, triggering the control circuit to start the cooling fan 105 and the electric telescopic cylinder 601. The cooling fan 105 discharges the heat through the exhaust holes 102, and the discharged hot air is discharged from the filter screen 1042 under the guidance of the air guide inclined surface 1041. At the same time, the telescopic end of the electric telescopic cylinder 601 pushes the cross plate 602 to move. The cross plate 602 drives the two moving plates 603 to move through the connecting block 6021, so that the sliding groove 6031 moves along the slider 302. When the two moving plates 603 move, they will drive the sealing plate 604 to move synchronously through the push plate 606 and the connecting rod 605, so that the three sealing plates 604 are separated from the strip-shaped holes 103, forming a ventilation channel. The external air enters the box body and will be filtered by the non-woven fabric 701 to remove the contained moisture. The dry air continues to flow to the inside of the box body, cooperating with the cooling fan 105 to accelerate the air circulation inside and outside the box.

[0030] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and do not limit the invention. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A building electrical automation energy-saving control device, comprising an electrical control box (1) and a heat dissipation linkage mechanism (4) for assisting in cooling, wherein two side walls of the electrical control box (1) are respectively provided with exhaust holes (102) and three strip holes (103), a circular frame (3) is installed inside the electrical control box (1) at the three strip holes (103), and a vertical plate (2) is provided on a side of the circular frame (3) away from the box wall, characterized in that: A heat dissipation fan (105) is installed on the inner wall of the electrical control box (1) at the exhaust hole (102); the heat dissipation fan (105) is connected to a control circuit in the electrical control box (1) via a wire; a plurality of water permeable holes (101) are provided on one side of the bottom end of the electrical control box (1); and a rain shield (104) is installed on the outer wall of the electrical control box (1) at the exhaust hole (102); The heat dissipation linkage mechanism (4) is composed of a temperature difference drive component (5), an auxiliary ventilation component (6) and a moisture absorption component (7). The moisture absorption component (7) is arranged in the circular frame (3). The temperature difference drive component (5) and the auxiliary ventilation component (6) are both mounted on the vertical plate (2). The moisture absorption component (7), the auxiliary ventilation component (6) and the temperature difference drive component (5) are all connected to the control circuit in the electrical control box (1) through wires. The temperature difference drive component (5) is used to sense the temperature change in the electrical control box (1) and start the heat dissipation fan (105) and the auxiliary ventilation component (6) to automatically cool down according to the temperature change. The auxiliary ventilation component (6) is used to open and close the three strip holes (103) to enhance the ventilation effect. The moisture absorption component (7) is used to dehumidify the incoming humid air.

2. A building electrical automation energy-saving control device according to claim 1, characterized in that: The temperature difference drive assembly (5) comprises a bimetallic strip (501), a groove (201) is provided at the top of the vertical plate (2), a screw rod (202) is fixed at the center of the bottom of the groove (201), one end of the bimetallic strip (501) is sleeved on the screw rod (202) and the outer wall is in contact with the groove wall of the groove (201), a contact is provided on the lower surface of the other end of the bimetallic strip (501), a horizontal plate (504) is fixed to the vertical plate (2) away from the outer wall of the circular frame (3) and below the bimetallic strip (501), a micro switch (5041) matching the contact is provided on the upper surface of the horizontal plate (504), and the micro switch (5041) is connected to the control circuit in the electrical control box (1) through a wire.

3. A building electrical automation energy-saving control device according to claim 2, characterized in that: The screw rod (202) is provided with an abutment sleeve (502), the bottom end of the abutment sleeve (502) is in contact with the upper surface of the bimetallic strip (501), the top end of the screw rod (202) is provided with a hexagonal nut (503), the hexagonal nut (503) is screwed and fixed to the screw rod (202) through a thread, and the bottom end of the hexagonal nut (503) is in close contact with the top surface of the abutment sleeve (502).

4. A building electrical automation energy-saving control device according to claim 1, characterized in that: The auxiliary ventilation assembly (6) comprises an electric telescopic cylinder (601) and three sealing plates (604), the three sealing plates (604) are all arranged on the outer wall of the electrical control box (1), the three sealing plates (604) are respectively located at corresponding positions of the three strip holes (103), both ends of the three sealing plates (604) are fixedly connected to a push plate (606) via a connecting rod (605), and both side outer walls of the circular frame (3) are provided with a movable plate (603), and the ends of the two movable plates (603) pass through the side wall of the electrical control box (1) and are fixed to the push plate (606) by screws; The lower surfaces of the other ends of the two movable plates (603) are connected to the horizontal plate (602) via welded connection blocks (6021); the electric telescopic cylinder (601) is fixed to the outer wall of the vertical plate (2) via screws; the telescopic end of the electric telescopic cylinder (601) passes through the vertical plate (2) and is fixed to the horizontal plate (602) via screws; the electric telescopic cylinder (601) is connected to the control circuit in the electrical control box (1) via a wire.

5. A building electrical automation energy-saving control device according to claim 4, characterized in that: The outer walls of the three sealing plates (604) close to the strip-shaped holes (103) are each provided with a sealing pad, and the two movable plates (603) are each provided with a sliding groove (6031) on one side close to the circular frame (3). Slide blocks (302) are fixed to the outer walls of both sides of the circular frame (3), and the slide blocks (302) are in contact with the groove walls of the sliding groove (6031) and are slidably connected.

6. A building electrical automation energy-saving control device according to claim 1, characterized in that: The moisture absorption component (7) comprises a shaft (702) and a transmission shaft (703); a protective shell (301) is fixed to the bottom of the circular frame (3); the shaft (702) is rotatably mounted on the inner top of the circular frame (3); the transmission shaft (703) is rotatably mounted in the protective shell (301); a belt-type non-woven fabric (701) is sleeved on the shaft (702) and the transmission shaft (703); two side walls of the non-woven fabric (701) are spaced 2 cm from the inner wall of the circular frame (3); a plurality of rubber bumps are provided on the outer wall of the transmission shaft (703); and the rubber bumps are in frictional contact with the non-woven fabric (701).

7. A building electrical automation energy-saving control device according to claim 6, characterized in that: An extrusion shaft (704) is rotatably mounted inside the protective shell (301) and below the transmission shaft (703); the outer wall of the extrusion shaft (704) is in close contact with the outer wall of the non-woven fabric (701); a protective shell (707) is fixed to the side wall of the protective shell (301) with screws; one end of the transmission shaft (703) and the extrusion shaft (704) pass through the shell through a rotating shaft and are located in the protective shell (707); meshing gears (705) are fixedly sleeved on the outer walls of the two rotating shafts; a driving motor (706) is mounted on the inner wall of the protective shell (707) by means of screws; the output shaft of the driving motor (706) is connected to a rotating shaft flange; and a water flow hole matching the water permeable hole (101) is provided on the bottom wall of the protective shell (301).

8. A building electrical automation energy-saving control device according to claim 7, characterized in that: The inner walls on both sides of the protective shell (301) are fixed with mounting plates (708) by means of screws, and two groups of electric heating tubes (7081) are symmetrically arranged between the two mounting plates (708), and the two groups of electric heating tubes (7081) are respectively located on both sides of the non-woven fabric (701).

9. A building electrical automation energy-saving control device according to claim 1, characterized in that: A filter screen (1042) is installed at the bottom opening of the rain shield (104) by means of screws, and the inner wall of the rain shield (104) away from the air exhaust hole (102) is provided as an air guide inclined surface (1041).

10. A building electrical automation energy-saving control device according to claim 1, characterized in that: A humidity sensor is installed on one side of the inner wall of the circular frame (3) close to the strip-shaped hole (103) and is connected to a control circuit in the electrical control box (1) via a wire.

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