Building electrical automation distribution box and method

Abstract

The invention relates to the technical field of distribution boxes, in particular to a building electrical automation distribution box and method, comprising a box body, the inner side wall of the box body is fixedly connected with a first support block and a second support block; connecting rods are rotatably connected to the sides, away from the box body, of the bottom ends of the first supporting blocks, distribution box doors are hinged to the ends, away from the first supporting blocks, of the connecting rods, and handle grooves are formed in the sides, away from the connecting rods, of the distribution box doors; a pulley is in sliding fit with the top end of the first supporting block and is rotationally connected with the distribution box door; an electromagnet used for attracting the distribution box door is fixedly connected to the inner side wall of the side, away from the opening, of the box body. A heat dissipation assembly and a heat absorption assembly are arranged in the box body. Through the distribution box door, the first supporting block and the connecting rod, the distribution box door can slide to the position above the first supporting block through the pulley when being opened, so that the distribution box door can slide into the box body, the occupied area after the distribution box door is opened is reduced, and the inspection efficiency of workers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of distribution boxes, and in particular to a building electrical automation distribution box and method. Background Art

[0002] The building electrical automation distribution box is a device used to receive, distribute, control and protect electrical energy in the electrical system. It is widely used in residential, commercial and industrial buildings. In the building electrical automation system, the distribution box plays a vital role. It not only ensures the stable operation of the power system, but also cuts off the power supply in time when a circuit fails, thereby protecting the safety of equipment and personnel.

[0003] Generally speaking, the distribution box door needs to be opened continuously when connecting cables or inspecting the wires in the distribution box. If the area of ​​the distribution room is small, the distribution box door will interfere with the surrounding equipment or walls after opening, resulting in the inability to completely open or close the distribution box door, thus affecting normal maintenance and operation.

[0004] In summary, how to solve the problem that the distribution box door occupies a large space after opening and affects the inspection efficiency of the staff has become a technical problem that technicians in this field need to solve urgently. Therefore, it is necessary to propose a building electrical automation distribution box and method. Summary of the invention

[0005] To solve the above problems, the present invention provides a building electrical automation distribution box and method. Through the distribution box door, the first support block and the connecting rod, the distribution box door can slide to the top of the first support block through the pulley when opened, so that the distribution box door can slide into the box body, thereby reducing the floor space occupied by the distribution box door after opening and improving the inspection efficiency of the staff.

[0006] In order to achieve the above-mentioned object, the technical scheme of the present invention is as follows: a building electrical automation distribution box, comprising a box body, an opening is opened on one side of the box body, a plurality of through holes are opened on the side of the box body away from the opening, a main switch and a plurality of sub-switches are fixedly connected to the inner side wall of the box body away from the opening, and the sub-switches are all electrically connected to the main switch, a controller is fixedly connected to the surface of the box body, a first support block and a second support block are fixedly connected to the inner side wall of the box body, and the first support block is located above the second support block;

[0007] A connecting rod is rotatably connected to one side of the bottom end of the first support block away from the box body, and a distribution box door is hingedly connected to one end of the connecting rod away from the first support block. A handle groove is provided on the side of the distribution box door away from the connecting rod.

[0008] A pulley is slidably matched at the top end of the first supporting block, and the pulley is rotationally connected to the distribution box door.

[0009] An electromagnet for attracting the distribution box door is fixedly connected to the inner wall of the box body away from the opening. When the distribution box door slides above the first support block, the electromagnet is controlled by the controller to open and attract the distribution box door.

[0010] The bottom wall of the box body is provided with a heat dissipation component for dissipating heat from the electrical appliance, and the side walls of the box body are provided with a heat absorption component for absorbing the heat radiated by the electrical appliance.

[0011] The controller is used to control the start-up of the heat dissipation component at a fixed time.

[0012] The controller is used to control the heat absorption component to absorb heat when the temperature inside the box exceeds 40°C.

[0013] The technical principles of the above scheme are as follows:

[0014] The main switch is electrically connected to the sub-switch to control the on and off of the circuit in the box. The distribution box door is rotatably connected to the first support block through a connecting rod, and the distribution box door is also rotatably connected to the pulley, so that the distribution box door can slide on the first support block along the pulley. When the distribution box door needs to be opened, the staff can pull the distribution box door outward through the handle groove, and the distribution box door slides along the pulley to the top of the first support block, thereby reducing the floor space occupied by the distribution box door after it is opened.

[0015] The controller can control the heat dissipation component to dissipate heat at a regular time, and control the heat absorption component to absorb heat when the temperature inside the box is too high, thereby ensuring that the electrical appliances in the box can operate in an appropriate temperature environment.

[0016] The door of the distribution box is connected to the box body through a connecting rod, a supporting column and a pulley. This design not only makes the door of the distribution box easy to open and close, but also makes the door of the distribution box tighter when closed through the elastic force of the spring, thus improving the sealing performance.

[0017] The above scheme has the following beneficial effects:

[0018] 1. The present invention adopts a sliding design of the distribution box door so that the distribution box door can slide into the box body when it is opened, thereby reducing the floor space occupied by the distribution box door after it is opened, improving space utilization, and further improving the inspection efficiency of the distribution box by the staff.

[0019] 2. The present invention enables the distribution box door to maintain a stable state after opening through the attraction of the electromagnet, thereby reducing accidental closing of the distribution box door due to wind or touch by workers, and further improving work efficiency.

[0020] 3. The present invention can ensure that the electrical appliance operates at a normal temperature through the coordinated work of the heat dissipation component and the heat absorption component, thereby reducing electrical appliance damage or safety accidents caused by excessive temperature.

[0021] Furthermore, the connecting rod is in the shape of a Chinese character "へ", and one end of the connecting rod close to the first support block is fixedly connected to a support column, and the side wall of the second support block is fixedly connected to a spring, and the end of the spring away from the second support block is fixedly connected to the support column. The connecting rod is used to rotate when the distribution box door is opened to compress the spring.

[0022] Beneficial effect: The elastic effect of the spring can help the distribution box door maintain a certain position stability when it slides to the top of the first support block. When the distribution box door is subjected to external force or improper operation and causes position deviation, the tension of the spring can pull it back to the correct position to ensure the accurate positioning of the distribution box door. In addition, the spring is conducive to making the distribution box door smoother and more stable during the opening and closing process.

[0023] Furthermore, a plurality of ventilation holes are opened on the bottom wall of the box body, and the heat dissipation assembly includes a plurality of fans, and the fans are all fixedly connected to the ventilation holes.

[0024] Beneficial effect: The fan generates airflow through rotation, which can accelerate the air exchange between the inside of the distribution box and the outside. The addition of the fan can quickly discharge the hot air inside the distribution box through the opening, while introducing fresh air, thereby reducing the temperature inside the distribution box.

[0025] Furthermore, the heat absorption assembly includes a first heat absorption plate and a plurality of second heat absorption plates. The surfaces of the second heat absorption plates are all provided with arc grooves, and both ends of the arc grooves are fixedly connected to limit blocks.

[0026] A first pin is fixedly connected to one side of the first heat absorbing plate close to the second heat absorbing plate, and a second pin is fixedly connected to one side of the second heat absorbing plate away from the first heat absorbing plate. Both the first pin and the second pin are slidably matched with the arc grooves adjacent thereto.

[0027] A driving member is fixedly connected to the inner wall of the box body, an output shaft of the driving member is fixedly connected to the first heat absorbing plate, and the second heat absorbing plate is rotatably connected to the output shaft of the driving member.

[0028] Beneficial effect: The first heat absorbing plate and the plurality of second heat absorbing plates together form an extendable heat dissipation surface. When the driving member is working, the first heat absorbing plate and the second heat absorbing plate can be driven to expand, thereby increasing the contact area with the air in the box and improving the heat dissipation efficiency.

[0029] When the first heat absorbing plate and the second heat absorbing plate are closed, the first heat absorbing plate can protect the second heat absorbing plate to a certain extent, reduce the friction and loss of the second heat absorbing plate, and improve the heat absorption efficiency of the second heat absorbing plate.

[0030] Furthermore, a temperature sensor is fixedly connected to the top wall of the box, and the controller is used to receive temperature data monitored by the temperature sensor. When the temperature inside the box exceeds 40°C, the controller controls the driving member to start, and the driving member is used to drive the first heat absorbing plate and several second heat absorbing plates to unfold.

[0031] Beneficial effects: The temperature sensor can monitor the temperature in the distribution box in real time, ensuring the accuracy and real-time nature of the data. This provides reliable input information for the controller, enabling it to make accurate judgments based on the temperature conditions. By setting temperature thresholds and automatically controlling heat dissipation, failures caused by overheating in the distribution box can be effectively prevented. This not only extends the life of the equipment, but also avoids downtime or repair costs caused by failures.

[0032] Furthermore, a current transformer for monitoring current changes is fixedly connected to the inner wall of the box, and the controller is used to receive the current changes monitored by the current transformer.

[0033] Beneficial effects: The current transformer can monitor the current changes in the distribution box in real time and accurately, and convert it into a signal that the controller can recognize. This ensures that the controller can obtain the current status in the distribution box in a timely manner, providing a reliable basis for subsequent control decisions. The current transformer has high measurement accuracy and can accurately reflect the actual current value in the distribution box. This helps to avoid misjudgment or misoperation caused by inaccurate current measurement, and improves the safety and reliability of the distribution box.

[0034] Furthermore, a circuit breaker for cutting off power is fixedly connected to the inner wall of the box body, and the circuit breaker is located below the main switch. When the current change monitored by the controller through the current transformer is abnormal, the controller controls the circuit breaker to cut off the power.

[0035] Beneficial effects: When the current transformer detects an abnormal current, the controller can respond quickly and cut off the fault circuit by controlling the circuit breaker. This helps prevent the fault current from further expanding and causing greater damage to the distribution box and power system. By quickly cutting off the fault circuit, the normal operation of the distribution box can be quickly restored, reducing the downtime caused by the fault and improving the reliability and stability of the distribution box.

[0036] Furthermore, a partition plate for separating the circuit breaker and the connecting rod is fixedly connected to the bottom wall of the box body.

[0037] Beneficial effect: The presence of the partition plate can effectively prevent physical contact or electrical interference between the circuit breaker and the connecting rod, and improve the isolation and safety of the internal components of the distribution box.

[0038] Furthermore, a lighting lamp is fixedly connected to a side of the partition plate away from the connecting rod, and a push switch is fixedly connected to the top of the first support block, and the push switch is connected to the lighting lamp signal.

[0039] Beneficial effect: When the staff opens the door of the distribution box, the pulley will contact the push switch. When the pulley slides to the position of the push switch, the lighting lamp is powered on and starts to illuminate. The design of the lighting lamp enables the operator to clearly see the layout and components inside the distribution box in a dim light environment, so as to perform inspection and maintenance operations more accurately.

[0040] Further, the building electrical automation distribution box method comprises the following steps:

[0041] Step 1: The staff opens the door of the distribution box and controls the electromagnet to start attracting the door of the distribution box through the controller.

[0042] Step 2: Connect the cables to be used to the main switch and sub-switch, then control the electromagnet to close through the controller and close the distribution box door.

[0043] Step 3: Monitor the current changes in the main switch and sub-switch through current transformers.

[0044] Step 4: Use the controller to control the fan to rotate regularly to dissipate heat from the box.

[0045] Step 5: Monitor the temperature change in the box through the temperature sensor. When the temperature in the box exceeds 40°C, the controller controls the driving member to start, driving the first heat absorbing plate and the second heat absorbing plate to unfold.

[0046] Step 6: Use the controller to determine whether there is any abnormality in the current changes in the main switch and the sub-switch, and start the circuit breaker through the controller to close the main switch.

[0047] Step 7: Turn on the light by touching the push switch with the pulley, and use the light from the light to perform maintenance.

[0048] Beneficial effect: by controlling the start and stop of the electromagnet through the controller, the door of the distribution box can be conveniently fixed, making it easier and faster for the staff to open and close the door of the distribution box.

[0049] By monitoring the current changes in the main switch and sub-switch through the current transformer, current anomalies can be detected in time, thereby preventing safety hazards such as electrical fires. When abnormal current changes are detected, the controller will immediately start the circuit breaker to close the main switch, cut off the power supply, and ensure the safety of the electrical system.

[0050] By controlling the timing rotation of the fan through the controller, the box can be cooled, the temperature inside the box can be reduced, and the normal operation of the electrical equipment can be ensured. When the temperature inside the box exceeds 40°C, the controller will control the drive to start, drive the first heat absorbing plate and the second heat absorbing plate to expand, further absorb the heat inside the box, and improve the heat dissipation effect.

[0051] When the staff is carrying out maintenance, the light can be turned on by touching and pressing the switch with the pulley, providing sufficient light for the maintenance work and ensuring the safety and accuracy of the maintenance process.

[0052] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is an axonometric view of a building electrical automation distribution box in an embodiment of the present invention.

[0054] Figure 2 For the embodiment of the present invention Figure 1 Cross-sectional view of the building electrical automation distribution box at Zhongyan AA.

[0055] Figure 3 For the embodiment of the present invention Figure 1 Cross-sectional view of the building electrical automation distribution box along the middle BB.

[0056] Figure 4 It is an internal axonometric diagram of a building electrical automation distribution box in an embodiment of the present invention.

[0057] Figure 5 It is a closed axonometric view of the heat absorption component in an embodiment of the present invention.

[0058] Figure 6 It is an expanded axonometric view of the heat absorption component in the embodiment of the present invention.

[0059] Figure 7 It is a method step diagram of the building electrical automation distribution box method in an embodiment of the present invention.

[0060] The figure marks in the drawings of the specification include: 1. box body; 2. distribution box door; 3. handle groove; 4. first support block; 5. pulley; 6. support column; 7. connecting rod; 8. spring; 9. second support block; 10. first heat absorbing plate; 11. first pin shaft; 12. second heat absorbing plate; 13. arc groove; 14. second pin shaft; 15. motor; 16. main switch; 17. current transformer; 18. sub-switch; 19. fan; 20. partition plate; 21. electromagnet; 22. circuit breaker; 23. lighting lamp. DETAILED DESCRIPTION

[0061] The following is further described in detail through specific implementation methods:

[0062] Embodiment 1:

[0063] As attached Figure 1-Figure 6As shown: a building electrical automation distribution box includes a box body 1, an opening is opened on the left side of the box body 1, and a plurality of through holes are opened on the right side of the box body 1. A main switch 16 and a plurality of sub-switches 18 are fixedly connected to the inner wall on the right side of the box body 1 by bolts, and the sub-switches 18 are electrically connected to the main switch 16. A controller is fixedly connected to the surface of the box body 1 by screws, and a first support block 4 and a second support block 9 are fixedly connected to the inner wall of the box body 1 by bolts, and the first support block 4 is located above the second support block 9.

[0064] A connecting rod 7 is rotatably connected to a side of the bottom end of the first supporting block 4 away from the box body 1 , and a distribution box door 2 is hinged to the bottom end of the connecting rod 7 . A handle groove 3 is provided on the left side of the distribution box door 2 .

[0065] A pulley 5 is slidably fitted on the top of the first support block 4 , and the pulley 5 is rotationally connected to the distribution box door 2 .

[0066] An electromagnet 21 for attracting the distribution box door 2 is fixedly connected to the inner wall on the right side of the box body 1 by bolts. When the distribution box door 2 slides above the first support block 4, the electromagnet 21 is controlled by the controller to open and attract the distribution box door 2.

[0067] The bottom wall of the box body 1 is provided with a heat dissipation component for dissipating heat for the electrical appliance, and the side walls of the box body 1 are provided with a heat absorption component for absorbing the heat emitted by the electrical appliance.

[0068] The controller is used to control the start-up of the heat dissipation component at a fixed time.

[0069] The controller is used to control the heat absorption component to absorb heat when the temperature in the box body 1 exceeds 40°C.

[0070] like Figure 4 As shown, a plurality of ventilation holes are opened on the inner bottom wall of the box body 1, and the heat dissipation assembly includes a plurality of fans 19, and the fans 19 are fixedly connected to the ventilation holes by screws.

[0071] like Figure 5 and Figure 6 As shown, the heat absorption assembly includes a first heat absorption plate 10 and a plurality of second heat absorption plates 12. The surfaces of the second heat absorption plates 12 are each provided with an arc groove 13. Both ends of the arc groove 13 are fixedly connected to a limiting block by bolts.

[0072] A first pin 11 is fixedly connected to one side of the first heat absorbing plate 10 close to the second heat absorbing plate 12 by screws, and a second pin 14 is fixedly connected to one side of the second heat absorbing plate 12 away from the first heat absorbing plate 10 by screws. Both the first pin 11 and the second pin 14 are slidably matched with the arc groove 13 adjacent thereto.

[0073] The inner wall of the box body 1 is fixedly connected with a driving member by bolts. In this embodiment, the driving member is preferably a motor 15. The output shaft of the motor 15 is fixedly connected to the first heat absorbing plate 10 by bolts, and the second heat absorbing plate 12 is rotatably connected to the output shaft of the motor 15.

[0074] A temperature sensor is fixedly connected to the top wall of the box body 1 by screws. The controller is used to receive temperature data monitored by the temperature sensor. When the temperature in the box body 1 exceeds 40°C, the controller controls the motor 15 to start, and the motor 15 is used to drive the first heat absorbing plate 10 and several second heat absorbing plates 12 to unfold.

[0075] like Figure 4 As shown, a current transformer 17 for monitoring current changes is fixedly connected to the inner wall of the box body 1 by bolts, and the controller is used to receive the current changes monitored by the current transformer 17.

[0076] The inner wall of the box body 1 is fixedly connected with a circuit breaker 22 for cutting off the power supply by bolts. The circuit breaker 22 is located below the main switch 16. When the controller detects abnormal current changes through the current transformer 17, the controller controls the circuit breaker 22 to cut off the power supply.

[0077] The specific implementation process is as follows: Figure 2 For example, when connecting the cable, the staff first needs to pull the handle groove 3 to pull the distribution box door 2 upwards. At this time, the distribution box door 2 will slide from left to right along the first support block 4 under the action of the pulley 5, so that the distribution box door 2 goes deep into the box body 1, reducing the space occupied by the distribution box door 2, and reducing the impact of the distribution box door 2 being unable to be opened due to excessive occupation on the staff's inspection efficiency.

[0078] When the distribution box door 2 slides to the right side of the first support block 4, the staff can open the electromagnet 21 through the controller to adsorb and fix the distribution box door 2, and then the staff can connect the cables to be connected to the main switch 16 and the sub-switch 18.

[0079] Combination Figure 4 As shown, after the cable is connected, the temperature inside the box 1 can be monitored by the temperature sensor. At the same time, the staff can control the rotation of the fan 19 through the controller. For example, the controller can control the fan 19 to rotate for 10 minutes every 30 minutes. If the load in the box 1 is too large, the temperature will continue to rise. When the temperature sensor detects that the temperature inside the box 1 exceeds 40°C, the controller can start by controlling the motor 15.

[0080] by Figure 6For example, after the motor 15 is started, the output shaft of the motor 15 will drive the first heat absorbing plate 10 to rotate. When the first heat absorbing plate 10 rotates, it will slide in the arc groove 13 adjacent to it through the first pin shaft 11, thereby driving the second heat absorbing plate 12 adjacent to it to rotate. When the second heat absorbing plate 12 adjacent to the first heat absorbing plate 10 rotates, the second pin shaft 14 will also slide in the arc groove 13 adjacent to it, thereby driving the remaining second heat absorbing plates 12 to rotate, and finally stretching into a larger heat absorbing surface. The heat absorbing surface formed by the first heat absorbing plate 10 and the second heat absorbing plate 12 is used to absorb the heat in the box body 1, thereby achieving the effect of reducing the temperature in the box body 1.

[0081] Combination Figure 5 As shown, because the heat absorption performance of the first heat absorbing plate 10 and the second heat absorbing plate 12 will gradually decrease over time during use, when the first heat absorbing plate 10 and the second heat absorbing plate 12 are closed, the first heat absorbing plate 10 can play a certain protective role on the second heat absorbing plate 12, reduce the wear of the second heat absorbing plate 12, and thus extend the service life of the second heat absorbing plate 12. In the closed state, the first heat absorbing plate 10 will dissipate heat for the box body 1 together with the fan 19.

[0082] Combination Figure 4 As shown, the current transformer 17 will continuously monitor the current changes in the main switch 16 and the sub-switch 18. When the current in the main switch 16 and the sub-switch 18 is abnormal, the current transformer 17 will detect the abnormality and transmit the abnormality to the controller. At this time, the controller will control the circuit breaker 22 to cut off the power supply, thereby achieving the purpose of protecting electricity users.

[0083] Embodiment 2:

[0084] As attached Figure 2 As shown, the difference from the above embodiment is that the connecting rod 7 is in the shape of a Chinese character "へ", the top end of the connecting rod 7 is fixedly connected to the support column 6 by bolts, the side wall of the second support block 9 is fixedly connected to the spring 8 by bolts, the top end of the spring 8 is fixedly connected to the support column 6 by bolts, and the connecting rod 7 is used to rotate when the distribution box door 2 is opened to compress the spring 8.

[0085] The specific implementation process is as follows: when the distribution box door 2 slides along the first support block 4, the distribution box door 2 will drive the connecting rod 7 to rotate clockwise, and the clockwise rotation of the connecting rod 7 will compress the spring 8. At this time, the spring 8 will store energy and produce a certain buffering effect, which is beneficial to the stability of the distribution box door 2 when sliding on the first support block 4, and when the distribution box door 2 is closed, the spring 8 will produce a certain pulling force on the connecting rod 7, thereby reducing the position deviation of the distribution box door 2 and improving the stability of the distribution box door 2 during the opening and closing process.

[0086] Embodiment 3:

[0087] As attached Figure 4 As shown, the difference from the above embodiment is that a partition plate 20 for separating the circuit breaker 22 and the connecting rod 7 is fixedly connected to the inner bottom wall of the box body 1 by bolts.

[0088] A lighting lamp 23 is fixedly connected to the partition plate 20 at one side away from the connecting rod 7 by means of bolts, and a push switch is fixedly connected to the top of the first supporting block 4 by means of screws, and the push switch is signal-connected to the lighting lamp 23 .

[0089] The specific implementation process is as follows: when the distribution box door 2 is opened, the pulley 5 will slide to the right side of the first support block 4 to reach the position of the push switch, and the pulley 5 presses the push switch to power on the lighting lamp 23. At this time, the distribution box has lighting conditions, which is beneficial to the work of the staff. When the staff is inspecting the cables in the box body 1, the lighting lamp 23 can provide a bright environment for the staff, thereby improving the staff's inspection efficiency.

[0090] Embodiment 4:

[0091] As attached Figure 7 As shown, the building electrical automation distribution box method includes the following steps:

[0092] Step 1: The staff opens the distribution box door 2 and controls the electromagnet 21 through the controller to start attracting the distribution box door 2.

[0093] Step 2: Connect the cables to be used to the main switch 16 and the sub-switch 18, and then control the electromagnet 21 to be closed through the controller to close the distribution box door 2.

[0094] Step 3: Monitor the current changes in the main switch 16 and the sub-switch 18 through the current transformer 17.

[0095] Step 4: The controller controls the fan 19 to rotate regularly to dissipate heat for the box 1.

[0096] Step 5: Monitor the temperature change in the box 1 through the temperature sensor. When the temperature in the box 1 exceeds 40° C., the controller controls the motor 15 to start, driving the first heat absorbing plate 10 and the second heat absorbing plate 12 to unfold.

[0097] Step 6: The controller determines whether there is any abnormality in the current changes in the main switch 16 and the sub-switch 18 , and starts the circuit breaker 22 to close the main switch 16 through the controller.

[0098] Step 7: Turn on the lighting lamp 23 by touching the push switch with the pulley 5, and use the light of the lighting lamp 23 for inspection.

[0099] The specific implementation process is as follows: first, the staff manually opens the distribution box door 2, and controls the electromagnet 21 to start through the controller to attract the distribution box door 2 to ensure that the distribution box door 2 can remain stable in the open state to prevent accidental closing due to wind or other external factors.

[0100] Then the staff connects the cables to the main switch 16 and the sub-switch 18 as needed. After the connection is completed, the controller controls the electromagnet 21 to close, and uses the suction force of the electromagnet 21 to firmly close the distribution box door 2 to ensure that the electrical components inside the distribution box are fully protected.

[0101] The current transformer 17 monitors the current changes in the main switch 16 and the sub-switch 18 in real time. The current transformer 17 can accurately convert the current changes into electrical signals and transmit them to the controller for analysis and processing. The controller controls the fan 19 to rotate regularly according to the preset heat dissipation strategy to dissipate heat for the box 1.

[0102] The rotation of the fan 19 can take away the heat inside the distribution box, reduce the temperature of the box 1, and ensure the normal operation of the electrical components. The temperature change in the box 1 is monitored in real time by the temperature sensor. When the temperature in the box 1 exceeds 40°C, the controller will control the motor 15 to start, drive the first heat absorbing plate 10 and the second heat absorbing plate 12 to expand, further absorb the heat in the box 1, and improve the heat dissipation effect.

[0103] When the current transformer 17 detects that the current changes in the main switch 16 and the sub-switch 18 are abnormal, the controller will immediately start the circuit breaker 22 to close the main switch 16. This can quickly cut off the faulty power supply and prevent safety accidents such as electrical fires.

[0104] When the staff is carrying out maintenance, the pulley 5 touches the pressing switch to turn on the lighting lamp 23. The light of the lighting lamp 23 can provide sufficient lighting conditions for the maintenance work, ensuring the safety and accuracy of the maintenance process.

[0105] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A building electrical automation distribution box, comprising a box body (1), wherein one side of the box body (1) is provided with an opening, and a side of the box body (1) away from the opening is provided with a plurality of through holes; a main switch (16) and a plurality of sub-switches (18) are fixedly connected to the inner side wall of the box body (1) away from the opening, and the sub-switches (18) are all electrically connected to the main switch (16), characterized in that: A controller is fixedly connected to the surface of the box body (1), and a first support block (4) and a second support block (9) are fixedly connected to the inner wall of the box body (1), wherein the first support block (4) is located above the second support block (9); A connecting rod (7) is rotatably connected to a side of the bottom end of the first support block (4) away from the box body (1); an end of the connecting rod (7) away from the first support block (4) is hingedly connected to a distribution box door (2); and a handle groove (3) is formed on a side of the distribution box door (2) away from the connecting rod (7); A pulley (5) is slidably fitted on the top of the first support block (4), and the pulley (5) is rotationally connected to the distribution box door (2); An electromagnet (21) for attracting the distribution box door (2) is fixedly connected to the inner side wall of the box body (1) away from the opening. When the distribution box door (2) slides to above the first support block (4), the electromagnet (21) is controlled by a controller to open and attract the distribution box door (2). The inner bottom wall of the box body (1) is provided with a heat dissipation component for dissipating heat from the electrical appliance; A heat absorbing component for absorbing heat emitted by the electrical appliance is provided on the side wall of the box body (1); The controller is used to control the start-up of the heat dissipation component at a timing; The controller is used to control the heat absorption component to absorb heat when the temperature in the box (1) exceeds 40°C.

2. The building electrical automation distribution box according to claim 1, characterized in that: The connecting rod (7) is in the shape of a Chinese character "へ", and one end of the connecting rod (7) close to the first support block (4) is fixedly connected to the support column (6); a spring (8) is fixedly connected to the side wall of the second support block (9), and one end of the spring (8) away from the second support block (9) is fixedly connected to the support column (6), and the connecting rod (7) is used to rotate when the distribution box door (2) is opened, thereby compressing the spring (8).

3. The building electrical automation distribution box according to claim 2, characterized in that: The inner bottom wall of the box body (1) is provided with a plurality of ventilation openings; the heat dissipation assembly comprises a plurality of fans (19), and the fans (19) are all fixedly connected in the ventilation openings.

4. The building electrical automation distribution box according to claim 3, characterized in that: The heat absorption assembly comprises a first heat absorption plate (10) and a plurality of second heat absorption plates (12); arc grooves (13) are formed on the surfaces of the second heat absorption plates (12); and both ends of the arc grooves (13) are fixedly connected to limit blocks; A first pin shaft (11) is fixedly connected to a side of the first heat absorbing plate (10) close to the second heat absorbing plate (12), and a second pin shaft (14) is fixedly connected to a side of the second heat absorbing plate (12) away from the first heat absorbing plate (10), and the first pin shaft (11) and the second pin shaft (14) are both slidably matched with the arc-shaped groove (13) adjacent thereto; A driving member is fixedly connected to the inner wall of the box body (1), and an output shaft of the driving member is fixedly connected to the first heat absorbing plate (10). The second heat absorbing plates (12) are all rotationally connected to the output shaft of the driving member.

5. The building electrical automation distribution box according to claim 4, characterized in that: A temperature sensor is fixedly connected to the top wall of the box (1), and the controller is used to receive temperature data monitored by the temperature sensor; when the temperature in the box (1) exceeds 40° C., the controller controls the driving member to start, and the driving member is used to drive the first heat absorbing plate (10) and the plurality of second heat absorbing plates (12) to unfold.

6. The building electrical automation distribution box according to claim 5, characterized in that: A current transformer (17) for monitoring current changes is fixedly connected to the inner wall of the box body (1); and the controller is used to receive the current changes monitored by the current transformer (17).

7. The building electrical automation distribution box according to claim 6, characterized in that: A circuit breaker (22) for cutting off power is fixedly connected to the inner wall of the box body (1), and the circuit breaker (22) is located below the main switch (16). When the controller detects abnormal current changes through the current transformer (17), the controller controls the circuit breaker (22) to cut off power.

8. The building electrical automation distribution box according to claim 7, characterized in that: A partition plate (20) for separating the circuit breaker (22) and the connecting rod (7) is fixedly connected to the inner bottom wall of the box body (1).

9. The building electrical automation distribution box according to claim 8, characterized in that: A lighting lamp (23) is fixedly connected to the side of the partition plate (20) away from the connecting rod (7), and a push switch is fixedly connected to the top of the first support block (4), and the push switch is signal-connected to the lighting lamp (23).

10. Building electrical automation distribution box method, characterized in that, The following steps are involved: Step 1: The staff opens the distribution box door (2) and controls the electromagnet (21) through the controller to start attracting the distribution box door (2); Step 2: Connect the cables to be used to the main switch (16) and the sub-switch (18), and then control the electromagnet (21) to close through the controller, and close the distribution box door (2); Step 3: Monitor the current changes in the main switch (16) and the sub-switch (18) through the current transformer (17); Step 4: Control the fan (19) to rotate regularly through the controller to dissipate heat for the box (1); Step 5: The temperature change in the box (1) is monitored by a temperature sensor. When the temperature in the box (1) exceeds 40° C., the controller controls the driving member to start, thereby driving the first heat absorbing plate (10) and the second heat absorbing plate (12) to unfold; Step 6: The controller determines whether there is any abnormality in the current changes in the main switch (16) and the sub-switch (18), and the controller starts the circuit breaker (22) to close the main switch (16); Step 7: Turn on the illuminating lamp (23) by touching the pressing switch with the pulley (5), and use the light of the illuminating lamp (23) to perform maintenance.

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