A heat dissipation structure and heat dissipation method of energy-saving distribution transformer

Abstract

The present invention relates to the technical field of transformers, and in particular to a heat dissipation structure and a heat dissipation method of an energy-saving distribution transformer, comprising a transformer main body, a circumferential side of the transformer main body is provided with array-distributed heat dissipation fins, the interior of the heat dissipation fins is provided with transformer oil, a circumferential side of the transformer main body is provided with an array-distributed reciprocating displacement assembly, the reciprocating displacement assembly is located below the heat dissipation fins, and a detection assembly is provided on the reciprocating displacement assembly; the detection assembly comprises symmetrically arranged mounting blocks, the tops of the two mounting blocks are provided with state conversion devices, the tops of the state conversion devices are provided with frame blocks, the middle part of the frame blocks is provided with array-distributed exhaust holes, the interior of the exhaust holes is provided with liquid sensors, the bottom of the exhaust holes is provided with connecting pipes, and the end of the connecting pipes away from the exhaust holes is connected to an external exhaust fan; the present invention solves the technical problem of being unable to detect and repair cracks in the heat dissipation fins in a timely manner by arranging frame blocks and pushing members.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a heat dissipation structure and a heat dissipation method of an energy-saving distribution transformer. Background Art

[0002] The transformer consists of an iron core and a coil, and can be used for terminal power supply and ring network power supply, ensuring the reliability and flexibility of power supply. The transformer will generate a lot of heat during operation and needs to be equipped with corresponding heat dissipation equipment. Generally, oil circulation is used to dissipate heat, but the use of heat sinks alone will cause poor air circulation near the transformer, affecting the heat dissipation efficiency.

[0003] A Chinese patent with application number CN202010522282.7 discloses a new type of heat dissipation transformer, including a transformer shell and a controller. Transformer oil for dissipating heat to the transformer is stored in the transformer shell. Heat dissipation strips for dissipating heat to the transformer are arranged on the side walls of the transformer shell. After the transformer generates heat during operation, the heat is transferred to the transformer oil, and then the heat is diffused through the transformer oil, thereby dissipating the heat of the transformer. A heat dissipation acceleration mechanism for accelerating the heat dissipation of the transformer oil is arranged on the transformer shell, and a temperature sensor for sensing the temperature of the transformer shell is installed on the side walls of the transformer shell.

[0004] Although the heat dissipation effect can be improved by a heat dissipation acceleration mechanism in the prior art, cracks will appear at the welding points of the heat dissipation fins during the long-term use of the transformer, resulting in oil leakage. On the one hand, the transformer lacks an oil leakage detection device, and external air can enter the transformer through the cracks, affecting the overall purity of the transformer oil. On the other hand, the transformer lacks a crack repair device, and the transformer oil in the transformer will continue to leak out from the cracks of the heat dissipation fins, resulting in reduced heat dissipation effect of the heat dissipation fins and reduced insulation effect inside the transformer.

[0005] Therefore, it is necessary to invent a heat dissipation structure and heat dissipation method of an energy-saving distribution transformer to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a heat dissipation structure and heat dissipation method for an energy-saving distribution transformer to solve the above-mentioned problem, which is very necessary to solve the technical problem that the cracks of the heat dissipation fins cannot be detected and repaired in time in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A heat dissipation structure of an energy-saving distribution transformer comprises a transformer body, the circumference of which is provided with array-distributed heat dissipation fins, the interior of which is provided with transformer oil, the circumference of which is provided with array-distributed reciprocating displacement components, the reciprocating displacement components are located below the heat dissipation fins, and a detection component is provided on the reciprocating displacement components.

[0009] The detection component includes symmetrically arranged mounting blocks, and a state conversion device is provided on the top of each of the two mounting blocks. A frame block is provided on the top of the state conversion device, and an array of exhaust holes is provided in the middle of the frame block. Liquid sensors are provided inside the exhaust holes, and a connecting pipe is provided at the bottom of the exhaust holes, and one end of the connecting pipe away from the exhaust hole is connected to an external exhaust fan.

[0010] Both sides of the frame block are provided with bending plates distributed in an array, the bending plates are slidably connected to the frame block, the inner side of the vertical part of the bending plate is provided with an elastic force detection piece, and the outer side of the elastic force detection piece is provided with a repair component.

[0011] The repair component includes a receiving groove opened on the outside of the bending plate, a movable plate is provided inside the receiving groove, rotating rollers are symmetrically provided on the outside of the movable plate, an adhesive is provided on the outside of the rotating roller, and a pushing member is provided on the other side of the movable plate, and the pushing member is used to push the movable plate to move in the receiving groove.

[0012] The present invention provides a frame block and a pusher. When the frame block moves to the bottom of the heat sink, the frame block is controlled to move upward so that the bottom of the heat sink contacts the inner bottom of the frame block. The liquid sensor inside the air extraction hole is detected to determine whether oil leakage occurs at the bottom of the heat sink. If oil leakage occurs, the electromagnetic latch on the control ring plate is popped out, and the wedge block is squeezed to make the adhesive on the movable plate adhere to the side of the heat sink. Then, the frame block is controlled to move downward so that the frame block is gradually separated from the heat sink. During the separation process, the adhesive tape is stretched. When the bottom of the heat sink moves to two opposite sides, the adhesive tape is stretched. When the bending plate is bent, the electromagnetic pin is controlled to contract and a positive current is passed into the electromagnet. After the electromagnetic pin is contracted, the movable plate drives the adhesive on the rotating roller to enter the interior of the receiving groove. After the electromagnet is passed with a positive current, a repulsive force is generated between the electromagnet and the magnetic block, so that the bent plates on both sides of the oil leakage area of ​​the heat sink fin are gradually fitted together, and the adhesive parts of the adhesive tapes on both sides of the oil leakage area are restricted by the two bent plates and adhere to each other, so that the oil leakage area is preliminarily blocked, thereby preventing the transformer oil from continuously leaking from the cracks of the heat sink fins, resulting in the phenomenon that the heat dissipation effect of the heat sink fins and the insulation effect inside the transformer are reduced.

[0013] Preferably, the pushing member includes a ring plate connected to the elastic force detecting member, an array of electromagnetic latches are provided on the outer side of the ring plate, a wedge block is provided on the outer side of the electromagnetic latch, an end of the wedge block away from the electromagnetic latch passes through the bending plate and is connected to the side of the movable plate, and a return component is provided between the end of the wedge block facing the electromagnetic latch and the bending plate.

[0014] Preferably, the return assembly includes a limit plate connected to the wedge block, one end of the limit plate facing the bending plate is connected to a second spring, and one end of the second spring away from the limit plate is connected to the inner side of the bending plate.

[0015] Preferably, the adhesive member comprises a ring belt, and an array of adhesive tapes are adhered to the outer side of the ring belt, the length of a single adhesive tape is greater than the length of the movable plate, and the upper and lower surfaces of the adhesive tape connected to the ring belt are provided with adhesive parts, and the remaining adhesive parts of the adhesive tapes are all facing the outer side of the ring belt.

[0016] Preferably, the elastic force detection part also includes an electromagnet arranged on the side of the frame-shaped block, and a first spring is provided at one end of the electromagnet facing the bending plate, and a magnetic block is connected to the end of the first spring away from the electromagnet, and the magnetic block is connected to the inner side of the bending plate, and a sensor is provided at the connection between the first spring and the electromagnet.

[0017] Preferably, the state conversion device includes a movable groove opened on the top of the mounting block, a push rod is slidably connected inside the movable groove, the top of the push rod is connected to the bottom of the frame block, and an electric push rod is provided at the bottom of the push rod.

[0018] Preferably, the reciprocating displacement assembly includes mounting plates symmetrically arranged on the outside of the transformer body, a first limit rod is provided between the two mounting plates, a threaded screw is provided on the outside of the first limit rod, both ends of the threaded screw are rotatably connected to the two mounting plates, and one end of the threaded screw is connected to a driving motor; one of the mounting blocks is slidably connected to the first limit rod, and the other mounting block is threadedly connected to the threaded screw.

[0019] Preferably, a second limiting rod is provided on the heat dissipation fin on the same side, a sealing ring is provided at the connection between the heat dissipation fin and the limiting tube, and both ends of the limiting tube are connected to the transformer body.

[0020] A telescopic tube is arranged between two adjacent heat dissipation fins on the same side, and a flow groove is arranged at the connection between the heat dissipation fin and the telescopic tube.

[0021] Preferably, connecting pipes are symmetrically provided on the outer side of the transformer body, the connecting pipes are connected to the flow grooves on the heat dissipation fins, a cross bar is provided between the two connecting pipes, the cross bar passes through the heat dissipation fins and is slidably connected to the heat dissipation fins, and the cross bar is located inside the telescopic tube.

[0022] A heat dissipation method for a heat dissipation structure of an energy-saving distribution transformer, the heat dissipation method comprising the following steps:

[0023] Step 1: Reciprocating suction heat dissipation, control the drive motor and the exhaust fan to start, the drive motor drives the frame block to move back and forth on the threaded screw, during the movement of the frame block, the exhaust fan extracts the air under the heat dissipation fins through the connecting pipe and the exhaust hole, and increases the air flow rate between the heat dissipation fins;

[0024] Step 2: Detection of oil leakage points. When the frame block moves to the bottom of the heat sink fin, the frame block is controlled to move upward so that the air extraction holes on the frame block contact the bottom of the heat sink fin. If there are cracks at the bottom of the heat sink fin, the transformer oil will flow out from the cracks under the suction of the air extraction holes. Whether the liquid sensor is triggered can be used to determine whether there is oil leakage at the bottom of the heat sink fin.

[0025] Step 3: Repair the oil leakage point. When oil leakage occurs, the control system controls the movement of the pushers on the bending plates on both sides of the oil leakage area, so that the adhesive contacts the side of the heat sink fin, and then controls the frame block to move downward. When the bottom of the heat sink fin runs to the bending part of the two relatively bent plates, the electromagnetic latch is controlled to contract and current is passed into the electromagnet, so that the adhesive tapes on both sides of the oil leakage area seal the oil leakage area.

[0026] Technical effects and advantages of the present invention:

[0027] 1. The present invention provides a frame block and a bending plate. When the frame block moves to the bottom of the heat sink, the frame block is controlled to move upward, and the bottom of the heat sink gradually enters the area between the two bending plates. The two side edges of the heat sink are respectively squeezed by the corresponding bending plates. The control system can detect the deformation of the first spring through the pressure sensor, and then the expansion of the heat sink can be obtained. If the expansion of the heat sink is greater than the set value, the driving motor drives the frame block to move backward through the threaded screw. During the backward movement of the frame block, the heat sink is synchronously driven to move, so that the space between the heat sinks is increased, thereby improving the heat dissipation efficiency of the heat sink.

[0028] 2. The present invention sets a frame block and a pusher. When the frame block moves to the bottom of the heat sink, the frame block is controlled to move upward so that the bottom of the heat sink contacts the inner bottom of the frame block. The liquid sensor inside the air extraction hole is detected to determine whether oil leakage occurs at the bottom of the heat sink. If oil leakage occurs, the electromagnetic latch on the control ring plate is popped out, and the wedge block is squeezed to make the adhesive on the movable plate adhere to the side of the heat sink. Then, the frame block is controlled to move downward so that the frame block is gradually separated from the heat sink. During the separation process, the adhesive tape is stretched. When the bottom of the heat sink moves to two opposite sides, the adhesive tape is stretched. When the bending part of the bending plate is bent, the electromagnetic pin is controlled to contract and a positive current is passed through the electromagnet. After the electromagnetic pin is contracted, the movable plate drives the adhesive on the rotating roller to enter the interior of the receiving groove. After the electromagnet is passed through the positive current, a repulsive force is generated between the electromagnet and the magnetic block, so that the bending plates on both sides of the oil leakage area of ​​the heat sink fin are gradually fitted together, and the adhesive parts of the adhesive tapes on both sides of the oil leakage area are restricted by the two bending plates and adhere to each other, so that the oil leakage area is preliminarily blocked, thereby preventing the transformer oil from continuously leaking from the cracks of the heat sink fins, resulting in the phenomenon that the heat dissipation effect of the heat sink fins and the insulation effect inside the transformer are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0030] Figure 2 It is a schematic diagram of the structure of the detection component of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the elastic force detection member of the present invention.

[0032] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0033] Figure 5 It is a schematic diagram of the internal structure of the frame block of the present invention.

[0034] Figure 6 It is a schematic structural diagram of the repair component of the present invention.

[0035] Figure 7 It is a schematic structural diagram of the adhesive attachment of the present invention.

[0036] Figure 8 It is a structural schematic diagram of the reciprocating displacement assembly of the present invention.

[0037] Fig. 9 It is a schematic structural diagram of the heat dissipation fin of the present invention.

[0038] Fig.10 For the present invention Fig. 9 Enlarged view of point B in the middle.

[0039] Fig.11 It is a front structural schematic diagram of the heat dissipation fin of the present invention.

[0040] In the figure: 1. transformer body; 2. heat dissipation fins; 3. reciprocating displacement assembly; 301. mounting plate; 302. first limit rod; 303. threaded screw rod; 304. drive motor; 4. detection assembly; 401. mounting block; 402. frame block; 403. air extraction hole; 404. bending plate; 5. state conversion device; 501. movable groove; 502. push rod; 6. elastic force detection member; 601. electromagnet; 602. first spring; 603. magnetic block; 7 , repair component; 701, accommodating groove; 702, movable plate; 703, rotating roller; 704, adhesive component; 7041, annular belt; 7042, adhesive tape; 7043, adhesive part; 8, pushing member; 801, annular plate; 802, electromagnetic latch; 803, wedge block; 9, return component; 901, limit plate; 902, second spring; 10, second limit rod; 11, sealing ring; 12, telescopic tube; 13, circulation slot; 14, connecting tube; 15, cross bar. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1

[0043] like Figure 1-Figure 10 As shown, a heat dissipation structure of an energy-saving distribution transformer includes a transformer body 1, an array of heat dissipation fins 2 are arranged on the circumferential side of the transformer body 1, transformer oil is arranged inside the heat dissipation fins 2, and an array of reciprocating displacement components 3 are arranged on the circumferential side of the transformer body 1, and the reciprocating displacement components 3 are located below the heat dissipation fins 2.

[0044] The reciprocating displacement assembly 3 includes a mounting plate 301 symmetrically arranged on the outside of the transformer body 1, a first limiting rod 302 is provided between the two mounting plates 301, a threaded screw 303 is provided on the outside of the first limiting rod 302, both ends of the threaded screw 303 are rotatably connected to the two mounting plates 301, one end of the threaded screw 303 is connected to a driving motor 304, and a detection assembly 4 is provided on the outside of the threaded screw 303.

[0045] Specifically, the detection component 4 includes mounting blocks 401 arranged symmetrically. One of the mounting blocks 401 is slidably connected to the first limiting rod 302, and the other mounting block 401 is in threaded transmission connection with the threaded lead screw 303. State conversion devices 5 are provided at the tops of both mounting blocks 401. A frame-shaped block 402 is provided at the top of the state conversion device 5. The cross-section of the frame-shaped block 402 is in a "U" shape. Arrayed air extraction holes 403 are provided in the middle of the frame-shaped block 402. A connecting pipe is provided at the bottom of the air extraction hole 403. The end of the connecting pipe away from the air extraction hole 403 is connected to an external air extractor fan.

[0046] Arrayed bending plates 404 are provided on both sides of the frame-shaped block 402. The bending plates 404 are slidably connected to the frame-shaped block 402. Elastic force detection members 6 are provided on the inner sides of the bending plates 404. The elastic force detection members 6 are used to detect the expansion amount of the heat dissipation fins 2.

[0047] The elastic force detection member 6 includes an electromagnet 601 provided on the side surface of the frame-shaped block 402. A first spring 602 is provided at the end of the electromagnet 601 facing the bending plate 404. A magnetic block 603 is connected to the end of the first spring 602 away from the electromagnet 601. The magnetic block 603 is connected to the inner side surface of the bending plate 404. A pressure sensor is provided at the connection between the first spring 602 and the electromagnet 601. A telescopic rod is provided inside the inner ring of the first spring 602. One end of the telescopic rod is connected to the electromagnet 601, and the other end of the telescopic rod is connected to the magnetic block 603.

[0048] Specifically, the state conversion device 5 includes a push rod 502. The top of the push rod 502 is connected to the bottom of the frame-shaped block 402.

[0049] Specifically, second limiting rods 10 are provided on the heat dissipation fins 2 on the same side. Sealing rings 11 are provided at the connection between the heat dissipation fins 2 and the limiting pipes. The two ends of the limiting pipes are connected to the transformer body 1; an expansion pipe 12 is provided between two adjacent heat dissipation fins 2 on the same side. A flow-through groove 13 is provided at the connection between the heat dissipation fins 2 and the expansion pipe 12.

[0050] Communication pipes 14 are symmetrically provided on the outer side of the transformer body 1. The communication pipes 14 are communicated with the flow-through grooves 13 on the heat dissipation fins 2. A cross bar 15 is provided between the two communication pipes 14. The cross bar 15 penetrates through the heat dissipation fins 2 and is slidably connected to the heat dissipation fins 2. The cross bar 15 is located inside the expansion pipe 12.

[0051] In the initial state, the electromagnet 601 is in a power-off state.

[0052] When in use, the control system controls the drive motor 304 and the exhaust fan to start, the output shaft of the drive motor 304 drives the threaded screw 303 to rotate, and the threaded screw 303 drives the frame block 402 to move on the threaded screw 303 through the mounting block 401. During the movement of the frame block 402, the first limiting rod 302 limits the frame block 402 through the mounting block 401, thereby preventing the frame block 402 from rotating when the threaded screw 303 drives the frame block 402 to move; during the movement of the frame block 402, the exhaust fan draws air from under the cooling fins 2 through the connecting pipe and the exhaust hole 403, thereby increasing the air flow rate between the cooling fins 2 and improving the cooling effect of the cooling fins 2.

[0053] When the frame block 402 moves to the bottom of a heat dissipation fin 2, the driving motor 304 stops running, and the control system controls the pushing rods 502 on the two mounting blocks 401 to extend synchronously. The pushing rods 502 push the frame block 402 upward, so that the middle part of the frame block 402 gradually contacts the bottom of the heat dissipation fin 2. During the upward movement of the frame block 402, the bottom of the heat dissipation fin 2 gradually enters the area between the two bending plates 404, and the two side edges of the heat dissipation fin 2 are respectively squeezed by the corresponding bending plates 404. After being compressed, the bending plates 404 move toward the side of the frame block 402. At the same time, when the bending plates 404 move toward the side of the frame block 402, the first spring 602 is synchronously squeezed by the bending plates 404. The control system can detect the deformation of the first spring 602 through the pressure sensor. By detecting the deformation of the first spring 602 located on both sides of the heat dissipation fin 2 in the same area, the expansion amount of the heat dissipation fin 2 can be obtained.

[0054] If the expansion amount of the heat sink 2 is greater than the set value, the control system passes a positive current into the electromagnet 601. After the positive current is passed into the electromagnet 601, the electromagnet 601 generates a magnetism that is the same as the magnetism of the magnetic block 603, and a repulsive force is generated between the electromagnet 601 and the magnetic block 603. The magnetic blocks 603 on both sides of the heat sink 2 clamp the heat sink 2. Then the control system controls the drive motor 304 to reverse, and the drive motor 304 drives the frame block 402 to move backward through the threaded screw 303. During the backward movement of the frame block 402, the heat sink 2 is synchronously driven along The cross bar 15 and the second limit bar 10 are moved back a certain distance (the moving distance is set according to the actual situation) to increase the space between the heat sinks 2 and improve the heat dissipation efficiency of the heat sinks 2. The control system then records the position of the heat sink 2 after movement to avoid misalignment during the next inspection. The push rod 502 is then controlled to retract, and the push rod 502 drives the frame block 402 to move downward until the bending plate 404 is out of contact with the heat sink 2. The drive motor 304 is then continued to be controlled to operate, so that the frame block 402 runs to the bottom of the next heat sink 2.

[0055] If the expansion amount of the heat dissipation fin 2 is not greater than the set value, control the push rod 502 to contract. The push rod 502 drives the frame-shaped block 402 to move downward until the bending plate 404 is separated from the heat dissipation fin 2. After that, continue to control the driving motor 304 to operate so that the frame-shaped block 402 moves to the lower part of the next heat dissipation fin 2.

[0056] In the present invention, by providing the frame-shaped block 402 and the bending plate 404, after the frame-shaped block 402 moves to the lower part of the heat dissipation fin 2, control the frame-shaped block 402 to move upward. The bottom of the heat dissipation fin 2 gradually enters the area between the two bending plates 404. The two side edges of the heat dissipation fin 2 are respectively squeezed by the corresponding bending plates 404. The control system can detect the deformation amount of the first spring 602 through the pressure sensor, and thus can obtain the expansion amount of the heat dissipation fin 2. If the expansion amount of the heat dissipation fin 2 is greater than the set value, the driving motor 304 drives the frame-shaped block 402 to move backward through the threaded lead screw 303. During the backward movement of the frame-shaped block 402, the heat dissipation fin 2 is synchronously driven to move, so that the space between the heat dissipation fins 2 is increased, and the heat dissipation efficiency of the heat dissipation fin 2 is improved.

[0057] Embodiment 2

[0058] Although the above embodiments can improve the heat dissipation effect, during the long-term use of the transformer, cracks will occur at the welded joints of the heat dissipation fins 2, resulting in oil leakage. On the one hand, the transformer lacks an oil leakage detection device, and external air can enter the transformer through the cracks, affecting the overall purity of the transformer oil.

[0059] On the other hand, the transformer lacks a crack repair device, and the transformer oil in the transformer will continuously leak from the cracks of the heat dissipation fins 2, resulting in a reduction in the heat dissipation effect of the heat dissipation fins 2 and the insulation effect inside the transformer. In view of this, the technical solution is modified on the basis of Embodiment 1, and the modified technical solution is as follows.

[0060] As Figure 1-Figure 11 shown, a heat dissipation structure of an energy-saving distribution transformer includes a transformer main body 1. The periphery of the transformer main body 1 is provided with heat dissipation fins 2 distributed in an array. The inside of the heat dissipation fins 2 is filled with transformer oil. The periphery of the transformer main body 1 is provided with a reciprocating displacement assembly 3 distributed in an array. The reciprocating displacement assembly 3 is located below the heat dissipation fins 2, and a detection assembly 4 is provided on the reciprocating displacement assembly 3.

[0061] The detection assembly 4 includes symmetrically arranged mounting blocks 401. State conversion devices 5 are provided on the tops of the two mounting blocks 401. A frame-shaped block 402 is provided on the top of the state conversion device 5. The cross section of the frame-shaped block 402 is in a "U" shape. An array of air extraction holes 403 is provided in the middle of the frame-shaped block 402. A liquid sensor is provided inside the air extraction holes 403. A connecting pipe is provided at the bottom of the air extraction holes 403. One end of the connecting pipe away from the air extraction holes 403 is connected to an external air extractor.

[0062] An array of bending plates 404 are provided on both sides of the frame block 402. The bending plates 404 are slidably connected to the frame block 402. An elastic force detection part 6 is provided on the inner side of the vertical part of the bending plate 404. The elastic force detection part 6 is used to detect the expansion amount of the heat sink fin 2. A repair component 7 is provided on the outer side of the elastic force detection part 6.

[0063] The repair component 7 includes a receiving groove 701 opened on the outside of the bending plate 404, a movable plate 702 is arranged inside the receiving groove 701, a rotating roller 703 is symmetrically arranged on the outside of the movable plate 702, an adhesive 704 is arranged on the outside of the rotating roller 703, and a pushing member 8 is arranged on the other side of the movable plate 702, and the pushing member 8 is used to push the movable plate 702 to move in the receiving groove 701.

[0064] Specifically, the pushing member 8 includes a ring plate 801 connected to the elastic force detection member 6, an array of electromagnetic plugs 802 are provided on the outer side of the ring plate 801, a wedge block 803 is provided on the outer side of the electromagnetic plug 802, an end of the wedge block 803 away from the electromagnetic plug 802 passes through the bending plate 404 and is connected to the side of the movable plate 702, and a return component 9 is provided between the end of the wedge block 803 facing the electromagnetic plug 802 and the bending plate 404.

[0065] Specifically, the restoring component 9 includes a limiting plate 901 connected to the wedge block 803 , one end of the limiting plate 901 facing the bending plate 404 is connected to a second spring 902 , and one end of the second spring 902 away from the limiting plate 901 is connected to the inner side of the bending plate 404 .

[0066] Specifically, the adhesive member 704 includes a ring belt 7041, and an array of adhesive tapes 7042 are adhered to the outer side of the ring belt 7041. The length of a single adhesive tape 7042 is greater than the length of the movable plate 702. The upper and lower surfaces of the adhesive tape 7042 connected to the ring belt 7041 are provided with adhesive portions 7043, and the adhesive portions 7043 of the remaining adhesive tapes 7042 are all facing the outer side of the ring belt 7041.

[0067] Specifically, the elastic force detection part 6 also includes an electromagnet 601 arranged on the side of the frame block 402, and a first spring 602 is provided at one end of the electromagnet 601 facing the bending plate 404, and a magnetic block 603 is connected to the end of the first spring 602 away from the electromagnet 601, and the magnetic block 603 is connected to the inner side surface of the bending plate 404. A sensor is provided at the connection between the first spring 602 and the electromagnet 601.

[0068] Specifically, the state conversion device 5 includes a movable groove 501 opened on the top of the mounting block 401, and a push rod 502 is slidably connected inside the movable groove 501. The top of the push rod 502 is connected to the bottom of the frame block 402, and an electric push rod is provided at the bottom of the push rod 502.

[0069] In the initial state, the electromagnet 601 is in a power-off state, and the adhesive 704 on the rotating roller 703 is located inside the receiving groove 701 .

[0070] When in use, the control system controls the drive motor 304 and the exhaust fan to start, the output shaft of the drive motor 304 drives the threaded screw 303 to rotate, and the threaded screw 303 drives the frame block 402 to move back and forth on the threaded screw 303 through the mounting block 401. During the movement of the frame block 402, the exhaust fan draws air from under the cooling fins 2 through the connecting pipe and the exhaust hole 403, thereby increasing the air flow rate between the cooling fins 2 and improving the cooling effect of the cooling fins 2.

[0071] When the frame block 402 moves to the bottom of a heat sink 2, the driving motor 304 stops running, and the control system controls the push rods 502 on the two mounting blocks 401 to extend synchronously. The push rods 502 push the frame block 402 upward, so that the middle of the frame block 402 gradually contacts the bottom of the heat sink 2. During the upward movement of the frame block 402, the bottom of the heat sink 2 gradually enters the area between the two bending plates 404, and the two side edges of the heat sink 2 are respectively squeezed with the corresponding bending plates 404. After being pressed, the bending plates 404 move toward the side of the frame block 402, and finally the bottom of the heat sink 2 The exhaust fan 403 is still in normal working state at this time, and the exhaust hole 403 is located directly below the heat dissipating fin 2. At this time, the heat dissipating fin 2 is covered by the bending plate 404, and the exhaust hole 403 sucks the bottom of the heat dissipating fin 2. If there is a crack at the bottom of the heat dissipating fin 2, the transformer oil inside the heat dissipating fin 2 will flow out along the position of the crack under the suction action of the exhaust hole 403. Since a liquid sensor is provided inside the exhaust hole 403, the control system can obtain whether there is oil leakage at the bottom of the heat dissipating fin 2 by detecting whether the liquid sensor is triggered.

[0072] When the control system detects oil leakage at the bottom of the heat sink 2, the control system controls the pusher 8 on the bent plates 404 on both sides of the oil leakage area to move, that is, the control system controls the electromagnetic latch 802 on the ring plate 801 to pop out. After the electromagnetic latch 802 pops out, the telescopic end of the electromagnetic latch 802 squeezes the wedge-shaped portion of the wedge block 803. After the wedge block 803 is pressed, it moves toward the direction of the accommodating groove 701. During the movement, the second spring 902 is squeezed by the limit plate 901. , and at the same time, the movable plate 702 is pushed to move to the outside of the accommodating groove 701, and the movable plate 702 drives the rotating roller 703 to move toward the side of the heat dissipating fin 2, and finally the adhesive 704 on the rotating roller 703 contacts the side of the heat dissipating fin 2. Since the adhesive parts 7043 of the adhesive tape 7042 are all facing the outside of the annular belt 7041, after the adhesive 704 contacts the side of the heat dissipating fin 2, the adhesive parts 7043 of the adhesive tape 7042 are adhered to the two side edges of the heat dissipating fin 2.

[0073] It should be noted that: in this device, the inner circle of the annular belt 7041 is provided with array-distributed teeth, and the outer side of the rotating roller 703 is provided with array-distributed tooth grooves, the tooth grooves are engaged with the teeth, and the annular belt 7041 is driven to transmit by pulling the adhesive tape 7042, and the annular belt 7041 drives the rotating roller 703 to rotate, so that the length consumed by the adhesive tape 7042 on the annular belts 7041 on both sides of the heat dissipation fins 2 is in the same state.

[0074] When the adhesive portion 7043 of the adhesive tape 7042 is attached to the two sides of the heat sink fin 2, the control system controls the push rod 502 to retract, and the push rod 502 drives the frame block 402 to move downward. Since the adhesive portion 7043 of the adhesive tape 7042 is attached to the heat sink fin 2, as the frame block 402 is gradually separated from the heat sink fin 2, the heat sink fin 2 pulls the adhesive tape 7042, and the adhesive tape 7042 drives the rotating roller 703 to rotate through the annular belt 7041, so that the adhesive tape 7042 can be pulled. When the bottom of the heat dissipation fin 2 moves to the bending part of the two relatively bending plates 404, the control system controls the electromagnetic plug 802 to contract and passes a positive current to the electromagnet 601. After the electromagnetic plug 802 contracts, the telescopic end of the electromagnetic plug 802 loses the squeezing of the wedge-shaped part of the wedge block 803. Under the elastic restoring force of the second spring 902, the movable plate 702 moves toward the inside of the receiving groove 701, and the movable plate 702 drives the adhesive 704 on the rotating roller 703 to enter the inside of the receiving groove 701.

[0075] It should be noted that after the adhesive 704 on the rotating roller 703 enters the interior of the receiving groove 701 , the adhesive tape 7042 adhered to the heat dissipating fin 2 has not yet separated from the annular tape 7041 .

[0076] After the forward current is passed through the electromagnet 601, the electromagnet 601 generates magnetism identical to that of the magnetic block 603, and a repulsive force is generated between the electromagnet 601 and the magnetic block 603, so that the bent plates 404 on both sides of the oil leakage area of ​​the heat sink fin 2 approach each other until the opposite sides of the two bent plates 404 gradually fit together. As the heat sink fin 2 is further separated from the frame plate, the adhesive tape 7042 on both sides of the oil leakage area separates from the gradual annular tape 7041. At the same time, after the two bent plates 404 fit together, the adhesive portions 7043 of the adhesive tape 7042 on both sides of the oil leakage area are restricted by the area after the two bent plates 404 fit together and adhere to each other, thereby preliminarily blocking the oil leakage area, preventing the transformer oil from continuously leaking out from the cracks of the heat sink fin 2, resulting in a phenomenon in which the heat dissipation effect of the heat sink fin 2 and the insulation effect inside the transformer are reduced.

[0077] It should be noted that: after the liquid sensor inside the exhaust hole 403 detects oil leakage, the control system sends a signal to the monitoring room. After receiving the signal, the staff repairs the marked oil leakage area on site (the marked position is the adhesive position of the adhesive tape 7042 on the heat sink fin 2).

[0078] After the push rod 502 returns to its initial state, the control system controls the electromagnet 601 to cut off the power, and the bending plate 404 returns to its initial state under the elastic restoring force of the first spring 602, and then continues to control the driving motor 304 to operate, so that the frame block 402 moves to the bottom of the next heat sink fin 2 to perform an oil leakage test on the heat sink fin 2; when the threaded screw 303 drives the frame block 402 to the end position of the threaded screw 303 and completes the oil leakage test on the last heat sink fin 2, the control system controls the electric push rod to extend, so that the push rod 502 The frame block 402 is driven to slide inside the movable groove 501, and the push rod 502 drives the frame block 402 to move along the movable groove 501. Then, the driving motor 304 is controlled to reverse, so that the threaded screw 303 drives the frame block 402 to move backward. When the frame block 402 runs to the bottom of the heat sink 2, the heat sink fin 2 continues to be detected for oil leakage. Since the frame block 402 is misaligned, the position of this detection is different from the position detected when the frame block 402 moves forward, ensuring that the frame block 402 can perform all-round detection and repair on the bottom of the heat sink fin 2.

[0079] The present invention sets a frame block 402 and a pusher 8. When the frame block 402 moves to the bottom of the heat dissipating fin 2, the frame block 402 is controlled to move upward so that the bottom of the heat dissipating fin 2 contacts the inner bottom of the frame block 402. By detecting whether the liquid sensor inside the air extraction hole 403 is triggered, it can be determined whether there is oil leakage at the bottom of the heat dissipating fin 2. If there is oil leakage, the electromagnetic latch 802 on the control ring plate 801 is popped out, and the wedge block 803 is squeezed so that the adhesive 704 on the movable plate 702 is adhered to the side of the heat dissipating fin 2. Then, the frame block 402 is controlled to move downward so that the frame block 402 is gradually separated from the heat dissipating fin 2. During the separation process, the adhesive tape 7042 is stretched. When the bottom of the heat dissipating fin 2 runs to the two relatively bent plates 404, the adhesive tape 7042 is stretched. When the bending part is formed, the electromagnetic plug 802 is controlled to contract and a positive current is passed through the electromagnet 601. After the electromagnetic plug 802 contracts, the movable plate 702 drives the adhesive part 704 on the rotating roller 703 to enter the interior of the receiving groove 701. After the electromagnet 601 is passed through a positive current, a repulsive force is generated between the electromagnet 601 and the magnetic block 603, so that the bending plates 404 on both sides of the oil leakage area of ​​the heat sink 2 are gradually attached. After the two bending plates 404 are attached, the adhesive parts 7043 of the adhesive tape 7042 on both sides of the oil leakage area are restricted by the area after the two bending plates 404 are attached, and adhere to each other, so that the oil leakage area is initially blocked, so as to prevent the transformer oil from continuously leaking from the cracks of the heat sink fin 2, resulting in the phenomenon that the heat dissipation effect of the heat sink fin 2 and the insulation effect inside the transformer are reduced.

[0080] Embodiment 3

[0081] The present invention also provides a heat dissipation method of the heat dissipation structure of the energy-saving distribution transformer, and the heat dissipation method comprises the following steps:

[0082] Step 1: Reciprocating suction heat dissipation, control the drive motor 304 and the exhaust fan to start, the drive motor 304 drives the frame block 402 to move back and forth on the threaded screw 303, during the movement of the frame block 402, the exhaust fan extracts the air under the heat dissipation fins 2 through the connecting pipe and the exhaust hole 403, thereby increasing the air flow rate between the heat dissipation fins 2;

[0083] Step 2: Oil leakage point detection. When the frame block 402 moves to the bottom of the heat sink 2, the frame block 402 is controlled to move upward so that the exhaust hole 403 on the frame block 402 contacts the bottom of the heat sink 2. If there is a crack at the bottom of the heat sink 2, the transformer oil will flow out from the crack under the suction action of the exhaust hole 403. By detecting whether the liquid sensor is triggered, it can be obtained whether there is oil leakage at the bottom of the heat sink 2.

[0084] Step 3: Repair the oil leakage point. When oil leakage occurs, the control system controls the push members 8 on the bending plates 404 on both sides of the oil leakage area to move, so that the adhesive 704 contacts the side of the heat sink fin 2, and then controls the frame block 402 to move downward. When the bottom of the heat sink fin 2 runs to the bending part of the two relatively bent plates 404, the electromagnetic plug 802 is controlled to contract and current is passed to the electromagnet 601, so that the adhesive tapes 7042 on both sides of the oil leakage area seal the oil leakage area.

[0085] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure of an energy-saving distribution transformer, comprising a transformer body, characterized in that: The transformer body is provided with array-distributed heat dissipation fins on its periphery, transformer oil is provided inside the heat dissipation fins, the transformer body is provided with array-distributed reciprocating displacement components on its periphery, the reciprocating displacement components are located below the heat dissipation fins, and a detection component is provided on the reciprocating displacement components; The detection assembly includes symmetrically arranged mounting blocks, the tops of the two mounting blocks are provided with state conversion devices, the tops of the state conversion devices are provided with frame blocks, the middle of the frame blocks are provided with array-distributed air extraction holes, the insides of the air extraction holes are provided with liquid sensors, the bottoms of the air extraction holes are provided with connecting pipes, and one end of the connecting pipe away from the air extraction holes is connected to an external exhaust fan; Both sides of the frame block are provided with array-distributed bending plates, the bending plates are slidably connected to the frame block, the inner side of the vertical part of the bending plate is provided with an elastic force detection piece, and the outer side of the elastic force detection piece is provided with a repair component; The repair assembly comprises a receiving groove opened on the outer side of the bending plate, a movable plate is arranged inside the receiving groove, rotating rollers are symmetrically arranged on the outer side of the movable plate, an adhesive is arranged on the outer side of the rotating roller, and a pushing member is arranged on the other side of the movable plate, and the pushing member is used to push the movable plate to move in the receiving groove; The pusher comprises a ring plate connected to the elastic force detection member, an array of electromagnetic latches are arranged on the outer side of the ring plate, a wedge block is arranged on the outer side of the electromagnetic latch, an end of the wedge block away from the electromagnetic latch passes through the bending plate and is connected to the side of the movable plate, and a return component is arranged between the end of the wedge block facing the electromagnetic latch and the bending plate; The adhesive member comprises an annular belt, and an array of adhesive tapes are pasted on the outer side of the annular belt. The length of a single adhesive tape is greater than the length of the movable plate. The upper and lower surfaces of the adhesive tape connected to the annular belt are both provided with adhesive parts, and the adhesive parts of the remaining adhesive tapes are all facing the outer side of the annular belt.

2. The heat dissipation structure of an energy-saving distribution transformer according to claim 1, characterized in that: The restoring assembly includes a limiting plate connected to the wedge block, one end of the limiting plate facing the bending plate is connected to a second spring, and one end of the second spring away from the limiting plate is connected to the inner side surface of the bending plate.

3. The heat dissipation structure of an energy-saving distribution transformer according to claim 1, characterized in that: The elastic force detection component also includes an electromagnet arranged on the side of the frame block, and a first spring is provided at one end of the electromagnet facing the bending plate. The end of the first spring away from the electromagnet is connected to a magnetic block, and the magnetic block is connected to the inner side of the bending plate. A sensor is provided at the connection between the first spring and the electromagnet.

4. The heat dissipation structure of an energy-saving distribution transformer according to claim 1, characterized in that: The state conversion device comprises a movable groove opened on the top of the mounting block, a push rod is slidably connected inside the movable groove, the top of the push rod is connected to the bottom of the frame block, and an electric push rod is arranged at the bottom of the push rod.

5. The heat dissipation structure of an energy-saving distribution transformer according to claim 1, characterized in that: The reciprocating displacement assembly includes mounting plates symmetrically arranged on the outside of the transformer body, a first limiting rod is provided between the two mounting plates, a threaded screw is provided on the outside of the first limiting rod, both ends of the threaded screw are rotatably connected to the two mounting plates, and one end of the threaded screw is connected to a driving motor; one of the mounting blocks is slidably connected to the first limiting rod, and the other mounting block is threadedly connected to the threaded screw.

6. The heat dissipation structure of an energy-saving distribution transformer according to claim 1, characterized in that: A second limiting rod is provided on the heat dissipation fin on the same side, a sealing ring is provided at the connection between the heat dissipation fin and the limiting tube, and both ends of the limiting tube are connected to the transformer body; A telescopic tube is arranged between two adjacent heat dissipation fins on the same side, and a flow groove is arranged at the connection between the heat dissipation fin and the telescopic tube.

7. The heat dissipation structure of an energy-saving distribution transformer according to claim 6, characterized in that: The outer side of the transformer body is symmetrically provided with connecting pipes, the connecting pipes are connected with the flow grooves on the heat dissipation fins, a cross bar is provided between the two connecting pipes, the cross bar penetrates the heat dissipation fins and is slidably connected with the heat dissipation fins, and the cross bar is located inside the telescopic tube.

8. A heat dissipation method for a heat dissipation structure of an energy-saving distribution transformer, the heat dissipation method is implemented by using the heat dissipation structure of an energy-saving distribution transformer according to claim 3, characterized in that: The heat dissipation method comprises the following steps: Step 1: Reciprocating suction heat dissipation, control the drive motor and the exhaust fan to start, the drive motor drives the frame block to move back and forth on the threaded screw, during the movement of the frame block, the exhaust fan extracts the air under the heat dissipation fins through the connecting pipe and the exhaust hole, and increases the air flow rate between the heat dissipation fins; Step 2: Detection of oil leakage points. When the frame block moves to the bottom of the heat sink fin, the frame block is controlled to move upward so that the air extraction holes on the frame block contact the bottom of the heat sink fin. If there are cracks at the bottom of the heat sink fin, the transformer oil will flow out from the cracks under the suction of the air extraction holes. Whether the liquid sensor is triggered can be used to determine whether there is oil leakage at the bottom of the heat sink fin. Step 3: Repair the oil leakage point. When oil leakage occurs, the control system controls the movement of the pushers on the bending plates on both sides of the oil leakage area, so that the adhesive contacts the side of the heat sink fin, and then controls the frame block to move downward. When the bottom of the heat sink fin runs to the bending part of the two relatively bent plates, the electromagnetic latch is controlled to contract and current is passed into the electromagnet, so that the adhesive tapes on both sides of the oil leakage area seal the oil leakage area.

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