Transformer

Abstract

The invention discloses a transformer, which belongs to the technical field of transformers and comprises a shell, a box door is hinged to the front end face of the shell, a transformer body is arranged in the shell, a mounting groove is formed in one inner side face of the shell, a fan is mounted in the mounting groove, and a plurality of through holes are formed in the inner side face, away from the transformer body, of the mounting groove. A power source is arranged in the shell, one binding post of the fan is electrically connected with one binding post of the power source, a fixed contact is fixed to the inner side face of the shell, the other binding post of the power source is electrically connected with the fixed contact, a first air cylinder is arranged on the inner side face of the shell, and a movable contact is fixed to the top end of a piston rod of the first air cylinder. The opposite side faces of the movable contact and the fixed contact can be attached, the other binding post of the fan is electrically connected with the fixed contact, and a control assembly used for controlling opening and closing of the first air cylinder is arranged on the shell. The transformer has the effect of conveniently dissipating heat of the transformer in time.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular, to a transformer. Background Art

[0002] The box-type transformer integrates the traditional transformer in a box-type housing, and has the advantages of small volume, light weight, low noise, low loss, high reliability, etc., and is widely used in residential areas, commercial centers, stations, airports, factories, mines, enterprises, hospitals, schools and other places; the box-type transformer mainly consists of a transformer, high-voltage control equipment, and low-voltage control equipment, and is reasonably assembled in a specified order through a pressure start system, armored wire, a substation full-automatic system, direct current, and corresponding technical equipment, and all components are installed in a specific enclosed box, thereby forming a specific transformer.

[0003] In the related art, the Chinese invention patent with the publication number CN118553506A discloses a transformer with a fan, including a housing, a box door is hinged to the front end face of the housing, a transformer body is arranged in the housing, a first installation groove is opened on the inner bottom surface of the housing, a plurality of ventilation holes are opened on the inner bottom surface of the first installation groove, a first fan is rotatably installed in the first installation groove, second installation grooves are opened on the opposite inner side surfaces of the housing, the second installation grooves penetrate through the side surfaces of the housing, a second fan is rotatably installed in the second installation grooves, a first motor is arranged on the bottom surface of the housing, and an output shaft of the first motor is fixedly connected to a rotating shaft of the first fan, and a driving assembly for rotating the second fan is arranged on the housing.

[0004] In the above related art, by starting the first motor, the first motor drives the first fan to rotate, and the second driving assembly drives the second fan to rotate, so that the first fan and the second fan rotate to dissipate heat from the transformer. When it is necessary to dissipate heat from the transformer, it is necessary for the staff to go to start the first motor, which is not convenient for dissipating heat from the transformer in a timely manner. Summary of the Invention

[0005] In order to improve the problem that when it is necessary to dissipate heat from the transformer, it is necessary for the staff to go to start the first motor, which is not convenient for dissipating heat from the transformer in a timely manner, the present application provides a transformer.

[0006] The transformer provided by the present application adopts the following technical solutions: A transformer, comprising a housing, a box door is hinged to the front end face of the housing, a transformer body is arranged inside the housing, an installation groove is formed in one inner side face of the housing, a fan is installed in the installation groove, a plurality of through openings are formed in the inner side face of the installation groove away from the transformer body, a power supply is arranged inside the housing, one terminal of the fan is electrically connected to one terminal of the power supply, a fixed contact is fixed on the inner side face of the housing, the other terminal of the power supply is electrically connected to the fixed contact, a cylinder 1 is arranged on the inner side face of the housing, a moving contact is fixed at the top end of the piston rod of the cylinder 1, the side face of the moving contact opposite to the fixed contact can be attached, the other terminal of the fan is electrically connected to the fixed contact, and a control component for controlling the opening and closing of the cylinder 1 is arranged on the housing.

[0007] By adopting the above technical solution, when the temperature inside the housing is relatively high during the long-term use of the transformer, the cylinder 1 is controlled to start through the control component. The piston rod of the cylinder 1 drives the moving contact to move towards the direction close to the fixed contact, so that the side faces of the moving contact and the fixed contact close to each other are attached, thereby energizing the fan, and enabling the fan to timely discharge the heat inside the housing through the through openings during the start-up process, so as to facilitate timely cooling of the transformer.

[0008] Preferably, the control component includes a controller arranged on the housing, a temperature sensor is arranged inside the housing, the output end of the temperature sensor is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the control end of the cylinder 1.

[0009] By adopting the above technical solution, a temperature sensor is arranged inside the housing, so that the temperature sensor monitors the temperature inside the housing in real time and transmits the monitored temperature signal to the controller. The controller compares the received temperature signal with the set temperature signal. When the received temperature signal is greater than the set temperature signal, the controller controls the cylinder 1 to start. The piston rod of the cylinder 1 drives the moving contact to move towards the direction close to the fixed contact, so that the side faces of the moving contact and the fixed contact close to each other are attached, thereby energizing the fan and timely dissipating heat from the transformer.

[0010] Preferably, a solar panel is inclinedly arranged on the top surface of the housing, the solar panel is electrically connected to the power supply, and the solar panel is used to charge the power supply.

[0011] By adopting the above technical solution, a solar panel is arranged on the top surface of the housing, and the power supply is charged by the solar panel on sunny days, so that the power supply continuously maintains an energized state.

[0012] Preferably, a sliding groove is formed in the inner top surface of the through opening, a plugging plate is slidably arranged vertically in the sliding groove, connecting grooves are formed in the opposite inner side surfaces of the sliding groove, two cavities are formed in the shell, the two cavities are respectively located on both sides of the through opening, the connecting grooves communicate with the cavities, connecting blocks are fixed to both end faces of the plugging plate, a moving rod is slidably arranged vertically in the cavity, the end face of the connecting block away from the plugging plate is fixedly connected to the side surface of the moving rod, a through groove is formed in the inner side surface of the cavity, a driving block is fixed to the side surface of the moving rod, one end of the driving block away from the moving rod passes through the through groove, a connecting rod is fixed between the two driving blocks, and a second cylinder is fixed to the inner side surface of the shell, and the bottom end of the piston rod of the second cylinder is fixed to the top surface of the connecting rod.

[0013] By adopting the above technical solution, when it rains, by starting the second cylinder, the piston rod of the second cylinder pushes the connecting rod to move downward, the connecting rod drives the driving block to move downward, the driving block drives the moving rod to move downward, the moving rod drives the connecting block to move downward, and the connecting block drives the plugging plate to move downward, so that the plugging plate blocks the through opening, thereby reducing the amount of rainwater entering the shell through the through opening when it rains.

[0014] Preferably, a rain sensor is arranged on the shell, the output end of the rain sensor is electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the control end of the second cylinder.

[0015] By adopting the above technical solution, a rain sensor is arranged on the shell. When it rains, when the rain sensor detects rainwater, the rain sensor transmits a humidity signal to the controller, so that the controller controls the second cylinder to start.

[0016] Preferably, a tip is fixed to the inner bottom surface of the through opening, a groove is formed in the bottom surface of the plugging plate, and the tip can be inserted into the groove.

[0017] By adopting the above technical solution, when the piston rod of the second cylinder pushes the moving rod to move downward, the moving rod drives the connecting block to move downward, and the connecting block drives the plugging block to move downward, the groove is stuck on the tip, thereby reducing the possibility of rainwater entering the shell from the gap between the plugging plate and the inner bottom surface of the through opening.

[0018] Preferably, two side plates are fixed to both sides of the top surface of the solar panel, a reciprocating lead screw is fixed between the two side plates, a windshield wiper is arranged between the two reciprocating lead screws, the windshield wiper passes through the reciprocating lead screw, the windshield wiper is in threaded connection with the reciprocating lead screw, and a synchronizing member for driving the two reciprocating lead screws to rotate simultaneously is arranged on the reciprocating lead screw.

[0019] By adopting the above technical solution, during the long-term use of the solar panel, a layer of dust will precipitate on the surface of the solar panel. When it is necessary to clean the surface of the solar panel, by starting the synchronizing member, the synchronizing member drives the two reciprocating lead screws to start simultaneously, so that the reciprocating lead screws drive the wiper to move along the axial direction of the reciprocating lead screws, thereby enabling the wiper to clean the dust on the surface of the solar panel.

[0020] Preferably, the synchronizing member includes synchronizing pulleys arranged on the two reciprocating lead screws, a synchronizing belt is wound around the two synchronizing pulleys, and a driving member for driving one of the reciprocating lead screws to rotate is arranged on the housing.

[0021] By adopting the above technical solution, when the driving member is started, the driving member drives one of the reciprocating lead screws to rotate, the reciprocating lead screw drives the synchronizing pulley to rotate, the synchronizing pulley drives the synchronizing belt to rotate, so that the synchronizing belt drives the other synchronizing pulley to rotate, and the other synchronizing pulley drives the reciprocating lead screw to rotate, thereby enabling the two reciprocating lead screws to rotate simultaneously.

[0022] Preferably, the driving member includes a motor arranged on the housing, a first belt pulley is arranged on the output shaft of the motor, a second belt pulley is arranged on one of the reciprocating lead screws, and a transmission belt is wound around the first belt pulley and the second belt pulley.

[0023] By adopting the above technical solution, when the motor is started, the output shaft of the motor drives the first belt pulley to rotate, the first belt pulley drives the synchronizing belt to rotate, and the synchronizing belt drives the second belt pulley to rotate, thereby enabling the second belt pulley to drive the reciprocating lead screw to rotate.

[0024] Preferably, the output end of the controller is also electrically connected to the control end of the motor to control the opening and closing of the motor in response to the rain signal of the rain sensor.

[0025] By adopting the above technical solution, when the controller receives the humidity signal monitored by the rain sensor and controls the second cylinder to start, at the same time, the controller also controls the motor to start, so that the output shaft of the motor drives the first belt pulley to rotate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the temperature inside the housing of the transformer is relatively high during the long-term use of the transformer, by controlling the control component to control the first cylinder to start, the piston rod of the first cylinder drives the moving contact to move towards the direction close to the fixed contact, so that the side surfaces of the moving contact and the fixed contact that are close to each other are attached, thereby enabling the fan to be powered on, and enabling the fan to timely discharge the heat inside the housing through the through port during the starting process, so as to facilitate timely cooling of the transformer; 2. A temperature sensor is arranged inside the housing to monitor the temperature inside the housing in real time and transmit the monitored temperature signal to the controller. The controller compares the received temperature signal with the set temperature signal. When the received temperature signal is greater than the set temperature signal, the controller controls the first cylinder to start. The piston rod of the first cylinder drives the moving contact to move towards the fixed contact, so that the side surfaces of the moving contact and the fixed contact that are close to each other are in contact, thereby energizing the fan to dissipate heat from the transformer in a timely manner; 3. When it rains, the second cylinder is started. The piston rod of the second cylinder pushes the connecting rod to move downward. The connecting rod drives the driving block to move downward. The driving block drives the moving rod to move downward. The moving rod drives the connecting block to move downward. The connecting block drives the blocking plate to move downward, so that the blocking plate blocks the through hole, thereby reducing the entry of rainwater into the housing through the through hole when it rains. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the transformer in the embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view of the housing in the embodiment of the present application.

[0029] Figure 3 It is a schematic diagram of the structure of the housing in the embodiment of the present application.

[0030] Figure 4 It is a schematic diagram of the structure of the first cylinder in the embodiment of the present application.

[0031] Figure 5 It is a schematic diagram of the structure of the blocking plate in the embodiment of the present application.

[0032] Figure 6 It is a schematic diagram of the structure of the solar panel in the embodiment of the present application.

[0033] Reference Signs: 1, housing; 11, box door; 12, transformer body; 13, installation groove; 14, fan; 15, through hole; 2, power supply; 21, solar panel; 22, fixed contact; 23, first cylinder; 24, moving contact; 25, temperature sensor; 26, controller; 3, sliding groove; 31, blocking plate; 32, tip; 33, groove; 34, connecting groove; 35, cavity; 36, connecting block; 37, moving rod; 4, through slot; 41, driving block; 42, connecting rod; 43, second cylinder; 44, rainwater sensor; 5, side plate; 51, reciprocating lead screw; 52, windshield wiper; 53, synchronous pulley; 54, synchronous belt; 55, motor; 56, pulley one; 57, pulley two; 58, transmission belt. Detailed Embodiments

[0034] The following is combined with the attached Figure 1-6A further detailed description of the present application will be given.

[0035] An embodiment of the present application discloses a transformer.

[0036] Referring to Figure 1 and Figure 2 A transformer includes a housing 1 and a box door 11 hinged to the front end face of the housing 1. A transformer body 12 is fixed inside the housing 1.

[0037] Referring to Figure 2 and Figure 3 On the inner side surface of the housing 1 opposite to the box door 11, an installation groove 13 is provided. A fan 14 is fixed in the installation groove 13. A plurality of through holes 15 are provided on the inner side surface of the installation groove 13 away from the box door 11. The plurality of through holes 15 are arranged at equal intervals in the vertical direction. A power supply 2 is fixed on the inner bottom surface of the housing 1. The power supply 2 is located below the fan 14. A solar panel 21 arranged obliquely is fixed on the top surface of the housing 1. The solar panel 21 is electrically connected to the power supply 2. The solar panel 21 is used to charge the power supply 2. One terminal of the fan 14 is electrically connected to one terminal of the power supply 2.

[0038] Referring to Figure 2 and Figure 4 On the inner side surface of the housing 1, a fixed contact 22 and a first cylinder 23 are fixed. The first cylinder 23 is located below the fixed contact 22. The top end of the piston rod of the first cylinder 23 is fixed with a moving contact 24. The side surfaces of the fixed contact 22 and the moving contact 24 facing each other can be attached. The other terminal of the fan 14 is electrically connected to the fixed contact 22. The other terminal of the power supply 2 is electrically connected to the moving contact 24. A temperature sensor 25 is fixed on the inner top surface of the housing 1. A controller 26 is fixed on the inner side surface of the housing 1. The output end of the temperature sensor 25 is electrically connected to the input end of the controller 26. The output end of the controller 26 is electrically connected to the control end of the first cylinder 23.

[0039] A temperature sensor 25 is arranged inside the housing 1 to enable the temperature sensor 25 to monitor the temperature inside the housing 1 in real time. The temperature sensor 25 transmits the monitored temperature signal to the controller 26. When the temperature signal received by the controller 26 is greater than the set temperature signal, the controller 26 controls the first cylinder 23 to start, so that the piston rod of the first cylinder 23 drives the moving contact 24 to move upward, making the moving contact 24 abut against the fixed contact 22, thereby enabling the fan 14 to be powered on and start, and discharging the heat inside the housing 1 to the outside of the housing 1.

[0040] Referring to Fig. 2, Figure 4 and Figure 5, sliding grooves 3 are formed in the inner top surfaces of multiple through openings 15. A plugging plate 31 is slidably arranged vertically in the sliding groove 3. A tip 32 is fixed to the inner top surface of the through opening 15. A groove 33 is formed in the bottom surface of the plugging plate 31. The cross-section of the groove 33 is an inverted V shape. The groove 33 penetrates through both side surfaces of the plugging plate 31. The tip 32 can be inserted into the groove 33. Connecting grooves 34 are formed in both side surfaces of the sliding groove 3. Two cavities 35 are formed in the housing 1. The two cavities 35 are respectively located on both sides of multiple plugging plates 31. The cavity 35 is communicated with the connecting groove 34. Connecting blocks 36 are fixed to both side surfaces of the plugging plate 31. The connecting block 36 penetrates through the connecting groove 34. A moving rod 37 is slidably arranged vertically in both cavities 35. The side surface of the connecting block 36 away from the plugging plate 31 is fixedly connected to the side surface of the moving rod 37. A through groove 4 is formed in the inner side surface of the cavity 35. The through groove 4 penetrates through the inner side surface of the housing 1. A driving block 41 is fixed to the side surface of the moving rod 37. One end of the driving block 41 away from the moving rod 37 passes through the through groove 4. A connecting rod 42 is fixed between the two driving blocks 41. A second cylinder 43 is fixed to the inner side surface of the housing 1. The bottom end of the piston rod of the second cylinder 43 is fixed to the top surface of the connecting rod 42. A rain sensor 44 is fixed to the side surface of the housing 1 away from the door 11. The output end of the rain sensor 44 is electrically connected to the input end of the controller 26. The output end of the controller 26 is electrically connected to the control end of the second cylinder 43 to control the opening and closing of the second cylinder 43 in response to the rain signal.

[0041] When it rains, when the rain sensor 44 detects rain, the rain sensor 44 transmits a signal to the controller 26. The controller 26 controls the second cylinder 43 to start, so that the piston rod of the second cylinder 43 pushes the connecting rod 42 to move downward. The connecting rod 42 drives the driving block 41 to move downward. The driving block 41 drives the moving rod 37 to move downward. The moving rod 37 drives the connecting block 36 to move. The connecting block 36 drives the plugging plate 31 to move downward, so that the plugging plate 31 is stuck on the tip 32, and the through opening 15 is plugged by the plugging plate 31, thereby reducing the possibility of rainwater entering the housing 1 through the through opening 15 on rainy days.

[0042] Refer to Figure 2 and Figure 6, on both sides of the top surface of the solar panel 21, two side plates 5 are fixedly installed. A reciprocating lead screw 51 is rotatably installed between two opposite side plates 5, and both ends of the reciprocating lead screw 51 respectively pass through the side surfaces of the two side plates 5 away from each other. A windshield wiper 52 is arranged between the two reciprocating lead screws 51, and both reciprocating lead screws 51 pass through the windshield wiper 52. The reciprocating lead screw 51 is in threaded connection with the windshield wiper 52. A synchronous pulley 53 is sleeved and fixedly installed at one end of each of the two reciprocating lead screws 51, and a synchronous belt 54 is wound around the two synchronous pulleys 53. A motor 55 is fixedly installed on the top surface of the housing 1, and a first pulley 56 is sleeved and fixedly installed on the output shaft of the motor 55. A second pulley 57 is sleeved and fixedly installed at one end of one of the reciprocating lead screws 51, and a transmission belt 58 is wound around the outer circumferential surfaces of the first pulley 56 and the second pulley 57. The output end of the controller 26 is also electrically connected to the control end of the motor 55 to control the opening and closing of the motor 55 in response to the rain signal.

[0043] On a rainy day, the rain sensor 44 transmits the rain signal to the controller 26. While the controller 26 controls the second cylinder 43 to start, the controller 26 also controls the motor 55 to start, so that the output shaft of the motor 55 drives the first pulley 56 to rotate. The first pulley 56 drives the transmission belt 58 to rotate. The transmission belt 58 drives the second pulley 57 to rotate. The second pulley 57 drives the reciprocating lead screw to rotate. The reciprocating lead screw drives the synchronous pulley 53 to rotate. The synchronous pulley 53 drives the other synchronous pulley 53 to rotate through the synchronous belt 54, so that the two reciprocating lead screws rotate simultaneously, and the reciprocating lead screw drives the windshield wiper 52 to reciprocate axially along the reciprocating lead screw, so as to brush the dust on the surface of the solar panel 21 by the windshield wiper 52.

[0044] The implementation principle of an embodiment of a transformer in this application is as follows: By arranging a temperature sensor 25 in the housing 1, the temperature sensor 25 monitors the temperature in the housing 1 in real time and transmits the monitored temperature signal to the controller 26 in real time. The controller 26 compares the received temperature signal with the set temperature signal. When the temperature signal received by the controller 26 is greater than the set signal of the controller 26, the controller 26 controls the first cylinder 23 to start, so that the piston rod of the first cylinder 23 drives the moving contact 24 to move towards the direction close to the fixed contact 22, and the side surface of the moving contact 24 abuts against the side surface of the fixed contact 22, so that the fan 14 is powered on, and thus it is convenient to dissipate heat from the transformer inside the housing 1 in time.

[0045] A rain sensor 44 is arranged outside the housing 1 to monitor rainy weather. When it rains, the rain sensor 44 transmits the detected rain signal to the controller 26. The controller 26 controls the activation of the second cylinder 43, causing the piston rod of the second cylinder 43 to push the connecting rod 42 downward. The connecting rod 42 drives the driving block 41 to move downward, and the driving block 41 drives the moving rod 37 to move downward. The moving rod 37 drives the blocking plate 31 to move downward, causing the blocking plate 31 to block the through opening 15, thereby reducing the possibility of rainwater entering the housing 1 through the through opening 15 and causing a short circuit in the transformer circuit. While the controller 26 controls the activation of the second cylinder 43 according to the rain signal, the controller 26 also controls the activation of the motor 55, causing the output shaft of the motor 55 to drive the first pulley 56 to rotate. The first pulley 56 drives the transmission belt 58 to rotate, causing the transmission belt 58 to drive the second pulley 57 to rotate. The second pulley 57 drives the reciprocating lead screw to rotate, and the reciprocating lead screw drives the synchronous pulley 53 to rotate. The synchronous pulley 53 drives the synchronous belt 54 to rotate, and the synchronous belt 54 drives another synchronous pulley 53 to rotate, so that the two reciprocating lead screws rotate simultaneously. The reciprocating lead screw drives the windshield wiper 52 to move axially along the reciprocating lead screw, causing the windshield wiper 52 to brush the dust on the surface of the solar panel 21, thereby improving the power generation efficiency of the solar panel 21.

[0046] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A transformer, comprising a housing (1), a front end surface of the housing (1) being hingedly connected with a housing door (11), a transformer body (12) being arranged in the housing (1), characterized in that: A mounting groove (13) is provided on one of the inner side surfaces of the shell (1), a fan (14) is installed in the mounting groove (13), a plurality of openings (15) are provided on the inner side surface of the mounting groove (13) away from the transformer body (12), a power supply (2) is arranged in the shell (1), one of the terminals of the fan (14) is electrically connected to one of the terminals of the power supply (2), a fixed contact (22) is fixed on the inner side surface of the shell (1), and the power supply (2) is electrically connected to the fan (14). Another terminal of the source (2) is electrically connected to the fixed contact (22), a cylinder (23) is provided on the inner side of the shell (1), a moving contact (24) is fixed to the top end of the piston rod of the cylinder (23), the moving contact (24) and the side opposite to the fixed contact (22) can be fitted, another terminal of the fan (14) is electrically connected to the fixed contact (22), and a control component for controlling the opening and closing of the cylinder (23) is provided on the shell (1).

2. A transformer according to claim 1, characterized in that: The control component comprises a controller (26) arranged on the housing (1), a temperature sensor (25) is arranged in the housing (1), an output end of the temperature sensor (25) is electrically connected to an input end of the controller (26), and an output end of the controller (26) is electrically connected to a control end of the cylinder 1 (23).

3. A transformer according to claim 2, characterized in that: A solar panel (21) is obliquely arranged on the top surface of the shell (1); the solar panel (21) is electrically connected to the power source (2); and the solar panel (21) is used to charge the power source (2).

4. A transformer according to claim 3, characterized in that: The inner top surface of the through opening (15) is provided with a sliding groove (3), a sealing plate (31) is arranged in the sliding groove (3) for vertical sliding, and connecting grooves (34) are arranged on the opposite inner side surfaces of the sliding groove (3). Two cavities (35) are arranged in the shell (1), and the two cavities (35) are respectively located on both sides of the through opening (15), and the connecting grooves (34) are connected to the cavities (35). Connecting blocks (36) are fixed on both end surfaces of the sealing plate (31), and a moving rod (37) is arranged in the cavity (35) for vertical sliding. The end surface of the connecting block (36) away from the blocking plate (31) is fixedly connected to the side surface of the moving rod (37); a through groove (4) is provided on the inner side surface of the cavity (35); a driving block (41) is fixed to the side surface of the moving rod (37); one end of the driving block (41) away from the moving rod (37) passes through the through groove (4); a connecting rod (42) is fixed between the two driving blocks (41); a second cylinder (43) is fixed to the inner side surface of the housing (1); and the bottom end of the piston rod of the second cylinder (43) is fixed to the top surface of the connecting rod (42).

5. A transformer according to claim 4, characterized in that: The housing (1) is provided with a rain sensor (44), the output end of the rain sensor (44) is electrically connected to the input end of the controller (26), and the output end of the controller (26) is electrically connected to the control end of the second cylinder (43).

6. A transformer according to claim 5, characterized in that: A tip (32) is fixed on the inner bottom surface of the through opening (15), and a groove (33) is provided on the bottom surface of the blocking plate (31), and the tip (32) can be inserted into the groove (33).

7. A transformer according to claim 6, characterized in that: Two side panels (5) are fixed on both sides of the top surface of the solar panel (21), a reciprocating screw is fixed between the two side panels (5), a wiper (52) is arranged between the two reciprocating screws, the wiper (52) passes through the reciprocating screw, the wiper (52) is threadedly connected to the reciprocating screw, and a synchronizing member for driving the two reciprocating screws to rotate simultaneously is arranged on the reciprocating screw.

8. A transformer according to claim 7, characterized in that: The synchronous component comprises a synchronous belt (54) wheel (53) arranged on the two reciprocating screws, the two synchronous belt (54) wheels (53) are wound with a synchronous belt (54), and the housing (1) is provided with a driving component for driving one of the reciprocating screws to rotate.

9. A transformer according to claim 8, characterized in that: The driving member comprises a motor (55) arranged on the housing (1), a pulley 1 (56) being arranged on the output shaft of the motor (55), a pulley 2 (57) being arranged on one of the reciprocating screws, and a transmission belt (58) being wound around the pulley 1 (56) and the pulley 2 (57).

10. A transformer according to claim 9, characterized in that: The output end of the controller (26) is also electrically connected to the control end of the motor (55) so as to control the start and stop of the motor (55) in response to the rain signal of the rain sensor (44).

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