Energy-saving transformer with protection function

Abstract

This invention discloses an energy-saving transformer with protective functions, including a transformer body. A protective mechanism is provided on the outside of the transformer body. The protective mechanism includes a shell, which is fitted over the transformer body. A fixed sleeve is passed through and connected to the inside of the shell. A cylinder is fixedly connected through and to the inside of the fixed sleeve. The cylinder has a through-hole, which is connected to the inside of the fixed sleeve. A fixed rod is fixedly connected to the inside of the cylinder. A slip ring is slidably fitted on the outer surface of the fixed rod, and the outer surface of the slip ring is slidably connected to the inside of the cylinder. This invention relates to the field of transformer technology and solves the problems of existing electronic transformer protective devices, where dust easily accumulates inside the ventilation pipe, affecting transformer heat dissipation. Furthermore, the filter screen needs to be manually removed for cleaning, and the smoothness of removal is affected by the cover plate, resulting in time-consuming, labor-intensive, and inefficient dust removal work.

Description

Technical Field

[0001] This invention relates to the field of transformer technology, specifically to an energy-saving transformer with protective functions. Background Technology

[0002] Most energy-saving electronic transformers are susceptible to dust ingress during use and are also prone to damage from impacts. Their lack of protection significantly limits their application. Invention patent CN113363052A discloses a protective device for energy-saving electronic transformers. This device includes a protective enclosure and a fixing mechanism, simplifying the transformer fixing process, reducing the impact of impacts, and maintaining a clean working environment while cooling the transformer, thus preventing dust from entering its interior.

[0003] Although this device has the above advantages, it still has the following drawbacks in practical use: 1) The ventilation duct of this device is set horizontally, which makes it easy for dust to accumulate inside, thus affecting the heat dissipation effect of the transformer during long-term use; 2) When the multiple filters of this device are clogged with dust, they need to be manually pulled out for cleaning or replacement. This is not only time-consuming and laborious, but the cover plate on top also affects the smoothness of the filter pulling out, further making the dust removal work cumbersome and inefficient.

[0004] Therefore, it is necessary to address the problems that still exist in the existing devices. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an energy-saving transformer with protective functions. It solves the problems of dust accumulation inside ventilation pipes in existing electronic transformer protection devices, which affects transformer heat dissipation. At the same time, the filter screen needs to be manually pulled out for cleaning, and the smoothness of the pull-out is affected by the cover plate, resulting in time-consuming, labor-intensive and inefficient dust removal work.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving transformer with protective function, comprising a transformer body, a protective mechanism provided on the outside of the transformer body, the protective mechanism including a shell, the shell being fitted over the outside of the transformer body, a fixed sleeve penetrating through the inside of the shell, a cylinder being fixedly connected through the inside of the fixed sleeve, the cylinder having a through-hole in its body, the inside of the hole being connected to the inside of the fixed sleeve, a fixed rod being fixedly connected inside the cylinder, a slip ring being slidably fitted on the outer surface of the fixed rod, the outer surface of the slip ring being slidably connected to the inside of the cylinder, a magnetic ring being embedded and fixedly connected on the outer surface of the slip ring, the outer surface of the magnetic ring being slidably connected to the outer surface of the cylinder, and an electromagnet being movably connected to the outside of the magnetic ring by magnetic force, the outer surface of the electromagnet being fixedly connected to the outer surface of the cylinder.

[0007] Preferably, a connecting pipe is connected through the interior of the fixed sleeve, one end of the connecting pipe is connected through the interior of the outer shell, a fan is fixedly connected inside the connecting pipe, and a partition is fixedly connected inside the fixed sleeve and at the outer edge of the other end of the connecting pipe.

[0008] Preferably, a monitoring component is provided on the outside of the cylinder. The monitoring component includes two symmetrically arranged straight bars. The outer surfaces of the two straight bars are movably connected to the inside of the fixed sleeve. Arc grooves are formed on both sides of the outer surfaces of the two straight bars. The inside of the arc grooves is movably connected to the outer surface of the cylinder. A needle is fixedly connected to the inside of the arc grooves on both sides that are close to each other. The outer surfaces of the needles on both sides are movably connected to the inside of the air holes. A light source lamp and a photosensitive film are respectively embedded and fixedly connected to the inside of the arc grooves on both sides that are far apart from each other.

[0009] Preferably, one end of each of the two straight bars is provided with a groove, and a drive motor is fixedly connected inside the grooves on both sides. A slider is fixedly connected to the outer surface of the drive motor, and a slide rail is slidably connected to the outer surface of the slider. The slide rail rotates around the outer arc surface of the cylinder inside the fixed sleeve.

[0010] Preferably, a drive unit is provided on the outside of the slide rail. The drive unit includes a fixed wheel. The body of the fixed wheel is fixedly connected to the outer surface of the cylinder. A rotating ring is rotatably connected to the outer surface of the fixed wheel. A toothed ring is fixedly connected to the outer surface of the rotating ring. The toothed ring is sleeved on the outside of the fixed wheel. The outer surface of the toothed ring is fixedly connected to one end of the slide rail. The outer surface of the toothed ring is rotatably connected to the inside of the fixed sleeve.

[0011] Preferably, a gear meshes with the outer surface of the gear ring, the outer surface of the gear is rotatably connected to the interior of the fixed sleeve, an adjusting motor is fixedly connected to the outer surface of the gear ring, a fixed plate is fixedly connected to the outer surface of the adjusting motor, and the outer surface of the fixed plate is fixedly connected to the interior of the fixed sleeve.

[0012] Preferably, the slip ring is provided with a traction assembly on its exterior. The traction assembly includes a threaded groove formed on the outer surface of the slip ring. A stud is threadedly connected to the interior of the threaded groove. One end of the stud is rotatably connected to a pin. One end of the pin is fixedly connected to a traction rope. One end of the traction rope is slidably connected to the body of the cylinder and extends into the interior of the fixed sleeve.

[0013] Preferably, one end of the traction rope is wound with a drum, the outer surface of the drum is rotatably connected to the inside of the fixed sleeve, the body of the drum is fixedly connected to a rotating rod, both ends of the rotating rod are rotatably embedded in the inside of the fixed sleeve, and a torsion spring is sleeved on the outside of the rotating rod, the two ends of the torsion spring are fixedly connected to the outer surface of the drum and the inside of the fixed sleeve, respectively.

[0014] Beneficial effects This invention provides an energy-saving transformer with protective functions. Compared with the prior art, it has the following advantages: (1) By setting up a protective mechanism, the cylindrical opening is set downwards and connected to the inside of the outer shell through air holes and a fixed sleeve. In this way, when the air flows, the dust can be trapped inside the cylinder and fall freely by gravity, which saves the difficulty of cleaning and facilitates the sliding of the slip ring, which can further improve the efficiency of cleaning. At the same time, the cylindrical opening is set downwards, which can increase the contact range with the outer shell when the air flows, and further improve the heat dissipation efficiency.

[0015] (2) By setting up a monitoring component, the light source emits light and penetrates the air hole to irradiate the photosensitive film, causing the resistance of the photosensitive film and the circuit current to change. Based on this principle, the air hole is monitored in real time. When the air hole is blocked, the sliding of the slider and the rotation of the drive motor cause the straight bar to rotate and drive the needle toward the air hole. Then, the slider slides closer to the cylinder so that the needle slides into the air hole to clear the blockage. This avoids the problem of the air hole being blocked by dust, affecting air flow and the heat dissipation of the transformer body.

[0016] (3) By setting up a drive unit, the nested cooperation of the fixed wheel and the rotating ring is used to realize the limiting support and motion guidance of the gear ring. Then, through the meshing of the gear and the gear ring, and the driving action of the motor, the slide rails on both sides drive the corresponding straight bars to rotate around the cylinder, so as to realize the real-time monitoring and cleaning of whether the air hole is blocked, thereby ensuring the smooth flow of air inside the shell, so as to ensure the heat dissipation efficiency and effect of the transformer body.

[0017] (4) By setting up a traction component, the slip ring can be suspended by connecting the traction rope, pin and stud with the slip ring. The traction rope can be released and wound up by rotating the drum. This facilitates the sliding of the slip ring to clean the dust inside the cylinder and allows the slip ring to reset for continuous dust cleaning. At the same time, the drum can wind the traction rope, which can save storage space and provide a larger stroke for the movement of the slip ring, so as to facilitate the cleaning of the dust inside the cylinder. Attached Figure Description

[0018] Figure 1 This is a perspective view of the internal structure of the outer casing of the present invention; Figure 2 This is a perspective view of the internal structure of the cylinder of the present invention; Figure 3 This is a perspective view of the external structure of the roll of the present invention; Figure 4 This is a perspective view of the external structure of the straight bar of the present invention; Figure 5 This is a perspective view of the external structure of the toothed ring of the present invention.

[0019] In the diagram: 1. Transformer body; 2. Outer shell; 3. Fixed sleeve; 4. Cylinder; 5. Vent; 6. Monitoring component; 61. Straight bar; 62. Arc groove; 63. Needle; 64. Light source lamp; 65. Photosensitive film; 66. Groove; 67. Drive motor; 68. Slider; 69. Drive unit; 691. Fixed wheel; 692. Rotary ring; 693. Gear ring; 694. Gear; 695. Adjusting motor; 696. Fixed plate; 610. Slide rail; 7. Fixed rod; 8. Slip ring; 9. Traction component; 91. Screw groove; 92. Stud; 93. Pin; 94. Traction rope; 95. Drum; 96. Rotating rod; 97. Torsion spring; 10. Magnetic ring; 11. Electromagnet; 12. Connecting pipe; 13. Fan; 14. Partition plate. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figure 1-5 This invention provides a technical solution: an energy-saving transformer with protective functions. The system includes a transformer body 1, with an external protective mechanism including a housing 2. The transformer body 1 is fixedly installed inside the housing 2 using existing shock-absorbing devices (not shown in the figure). The housing 2 is made from the protective casing of the existing protective device and fits over the transformer body 1. A fixed sleeve 3 runs through the interior of the housing 2. A humidity sensor can be installed inside the fixed sleeve 3 to monitor the humidity of the external environment. A cylinder 4 is fixedly connected through the interior of the fixed sleeve 3. The fixed sleeve 3 and the cylinder 4 are perpendicular to each other, and the cylinder 4 is positioned with its opening facing downwards. This allows dust to accumulate inside the cylinder 4 when air flows, and then fall off automatically due to gravity, reducing the difficulty of cleaning. The cylinder 4 has through-holes 5. Multiple vents 5 are arranged longitudinally at equal intervals on the outer arc surface of the cylinder 4, forming a group, and multiple groups are arranged radially at equal angles, with an even number of groups. The interior of the vents 5 is connected to the interior of the fixed sleeve 3. A fixed rod 7 is fixedly connected inside the cylinder 4. A slip ring 8 is slidably fitted on the outer surface of the fixed rod 7. The slip ring 8 is made of a material with high hardness, pressure resistance, wear resistance, corrosion resistance, good sealing performance, and non-magnetic properties. By sliding downwards, it can clean the dust inside the cylinder 4. At the same time, when sliding, the fixed rod 7 increases the force and stability of the cylinder 4. When the slip ring 8 descends to be flush with the bottom of the fixed sleeve 3, it can achieve the sealing effect on the inside of the fixed sleeve 3 to prevent moisture from entering the inside of the outer shell 2 and causing corrosion of the transformer body 1. The outer surface of the slip ring 8 is slidably connected to the inside of the cylinder 4. A magnetic ring 10 is embedded and fixedly connected to the outer surface of the slip ring 8. The magnetic ring 10 is made of permanent magnet, and the top heights of the slip ring 8 and the magnetic ring 10 are the same. The outer surface of the magnetic ring 10 is slidably connected to the outer surface of the cylinder 4. An electromagnet 11 is movably connected to the outside of the magnetic ring 10 by magnetic force. The electromagnet 11 is electrically connected to the external control circuit. Through the magnetic force with the magnetic ring 10, the sliding ring 8 can be controlled to move up and down. The outer surface of the electromagnet 11 is fixedly connected to the outer surface of the cylinder 4.

[0022] A connecting pipe 12 runs through the inside of the fixed sleeve 3. Both ends of the connecting pipe 12 are connected to the upper and lower parts of the inside of the outer casing 2, respectively. One end of the connecting pipe 12 runs through the inside of the outer casing 2. A fan 13 is fixedly connected inside the connecting pipe 12. The fan 13 is electrically connected to an external control circuit and can drive the air inside the lower part of the outer casing 2 to improve the heat dissipation efficiency of the transformer body 1. A partition 14 is fixedly connected inside the fixed sleeve 3 and at the outer edge of the other end of the connecting pipe 12. The partition 14 serves to separate the air flow channels.

[0023] A monitoring component 6 is installed on the outside of the cylinder 4. The monitoring component 6 includes two symmetrically arranged straight bars 61. The outer surfaces of the two straight bars 61 are movably connected to the inside of the fixed sleeve 3. Arc grooves 62 are formed on both sides of the outer surfaces of the two straight bars 61. The arc of the arc grooves 62 is consistent with the arc of the outer surface of the cylinder 4, so that the straight bars 61 can fit against the surface of the cylinder 4. The inside of the arc grooves 62 is movably connected to the outer surface of the cylinder 4. A needle 63 is fixedly connected inside the arc grooves 62 that are close to each other on both sides. The needle 63 is made of a material that is pressure-resistant, wear-resistant, corrosion-resistant and has high hardness. By sliding into the air hole 5, it realizes the clearing work inside the air hole 5. The outer surfaces of the two needles 63 are consistent with the arc of the cylinder 4. The internal movable connection of the vent 5 is such that the two mutually spaced arc grooves 62 on both sides are respectively embedded and fixedly connected to the light source 64 and the photosensitive film 65. When the straight bar 61 is attached to the outer surface of the cylinder 4 through the corresponding arc groove 62, the number and height of the light source 64 and the photosensitive film 65 are consistent with the number and height of a set of vents 5, and neither of them enters the interior of the vent 5 to avoid contamination and affecting the stability of monitoring. At the same time, both are electrically connected to the external control circuit. The photosensitive film 65 is made of photosensitive material. After being irradiated by the light source 64, its own resistance changes, which causes the circuit current to change. Based on this principle, the blockage inside the vent 5 is monitored.

[0024] Each of the two straight bars 61 has a groove 66 at one end. The groove 66 can save space and also provide protection. A drive motor 67 is fixedly connected inside the groove 66 on both sides. The drive motor 67 is made of servo motor and is electrically connected to an external control circuit. It is used to adjust the relative position of the needle 63. A slider 68 is fixedly connected to the outer surface of the drive motor 67. A slide rail 610 is slidably connected to the outer surface of the slider 68. The slide rail 610 and the slider 68 are made of existing linear motor devices with self-locking function and are electrically connected to an external control circuit. The slide rail 610 rotates around the outer arc surface of the cylinder 4 inside the fixed sleeve 3.

[0025] A drive unit 69 is provided on the outside of the slide rail 610. The drive unit 69 includes a fixed wheel 691. The body of the fixed wheel 691 is fixedly connected to the outer surface of the cylinder 4. A rotating ring 692 is rotatably connected to the outer surface of the fixed wheel 691. The outer diameter of the rotating ring 692 is the same as that of the fixed wheel 691. The two work together to provide axial limiting support and radial movement guidance. A toothed ring 693 is fixedly connected to the outer surface of the rotating ring 692. The toothed ring 693 provides support and traction for the slide rail 610 and the straight bar 61. The toothed ring 693 is sleeved on the outside of the fixed wheel 691. The outer surface of the toothed ring 693 is fixedly connected to one end of the slide rail 610. The outer surface of the toothed ring 693 is rotatably connected to the inside of the fixed sleeve 3.

[0026] The outer surface of the gear ring 693 is meshed with a gear 694. There is a certain transmission ratio between the gear 694 and the gear ring 693. In a preferred manner, the ratio of this transmission ratio allows the gear 694 to rotate one revolution. The rotation angle of the straight bar 61 is the same as the included angle between the two adjacent sets of air holes 5. The outer surface of the gear 694 is rotatably connected to the inside of the fixed sleeve 3. The outer surface of the gear ring 693 is fixedly connected with an adjusting motor 695. The adjusting motor 695 is made of a servo motor and is electrically connected to an external control circuit. The outer surface of the adjusting motor 695 is fixedly connected with a fixed plate 696. The outer surface of the fixed plate 696 is fixedly connected to the inside of the fixed sleeve 3.

[0027] The slip ring 8 is externally provided with a traction component 9, which includes a threaded groove 91. The cross-section of the threaded groove 91 is T-shaped to allow the rotating stud 92 to enter and exit the interior of the threaded groove 91. The threaded groove 91 is opened on the outer surface of the slip ring 8. The stud 92 is threadedly connected to the interior of the threaded groove 91. The stud 92 is threadedly connected to the slip ring 8 through the threaded groove 91, which facilitates the assembly and disassembly of the traction rope 94 and the slip ring 8. One end of the stud 92 is embedded and rotatably connected to a pin 93. The pin 93 can play a limiting role and also facilitates the independent rotation of the stud 92. One end of the pin 93 is fixedly connected to a traction rope 94. The traction rope 94 is woven from a pressure-resistant, wear-resistant, and corrosion-resistant material, and two or more sets are symmetrically arranged to ensure the smooth sliding of the slip ring 8. One end of the traction rope 94 is slidably connected to the body of the cylinder 4 and extends into the interior of the fixed sleeve 3.

[0028] One end of the traction rope 94 is wound with a drum 95. The drum 95 can reduce space occupation by winding the traction rope 94 and can provide a large stroke for the sliding ring 8 to slide. The outer surface of the drum 95 is rotatably connected to the inside of the fixed sleeve 3. The body of the drum 95 is fixedly connected to a rotating rod 96, which plays a supporting and limiting role. Both ends of the rotating rod 96 are rotatably embedded in the inside of the fixed sleeve 3. A torsion spring 97 is sleeved on the outside of the rotating rod 96. The torsion spring 97 is made of fatigue-resistant and corrosion-resistant material. By reversing, the traction rope 94 can be wound up for storage, and the slip ring 8 can be pulled up to reset. The two ends of the torsion spring 97 are fixedly connected to the outer surface of the drum 95 and the inside of the fixed sleeve 3, respectively.

[0029] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0030] Working principle: Installation of slip ring 8: First, select a brand new slip ring 8 that matches the specifications of cylinder 4, and place the side of the slip ring 8 with the magnetic ring 10 facing the inside of cylinder 4. Then, pull the stud 92 from the inside of cylinder 4 to move it to the outside of cylinder 4. Next, screw the stud 92 into the inside of the screw groove 91, so that the traction rope 94 is connected to the slip ring 8. During the screwing process, the stud 92 can rotate independently through the connection of the pin 93, without causing the tension of the traction rope 94 to change. Then, align the hole of the slip ring 8 with one end of the fixed rod 7, so that the slip ring 8 is placed inside the cylinder 4 and slides inside the fixed rod 7. Then, push the slip ring 8 to the top inside the cylinder 4, and suspend it through the action of the traction rope 94. During heat dissipation, the fan 13 inside the connecting pipe 12 on one side first operates, drawing in outside air through the corresponding fixed sleeve 3, cylinder 4, and air hole 5 and blowing it into the lower part of the casing 2 through one end of the connecting pipe 12, so that the air moves from bottom to top inside the casing 2, thereby dissipating a large amount of heat. The flowing air is then discharged to the outside through the fixed sleeve 3, cylinder 4, and air hole 5 on the other side, thus achieving heat dissipation of the transformer body 1 through external air circulation. At the same time, when the temperature of the casing 2 is higher than the set temperature threshold, the fans 13 on both sides blow air into the outside of the casing 2 simultaneously, and the rising air to be discharged enters the interior of the fixed sleeve 3 through the airflow channel separated by the partition 14, and is then discharged through the air hole 5 and cylinder 4, thereby accelerating the heat dissipation efficiency. When the air flows through the inside of the cylinder 4, the air hole 5 filters and retains the dust in the air inside the cylinder 4. Blockage monitoring: During airflow, the regulating motor 695 drives the gear 694 to rotate. Through the meshing of the gear 694 and the gear ring 693, the gear ring 693 drives the slide rail 610 to rotate around the outside of the cylinder 4. During this process, the fixed wheel 691 and the rotating ring 692 provide limiting support and motion guidance. At the same time, when the gear 694 rotates one revolution, the straight bar 61 moves from one set of air holes 5 to another set of adjacent air holes 5, so that the light source 64 and the photosensitive film 65 embedded in the arc groove 62 are aligned with the air holes 5 respectively. Then, the light source 64 emits light, which passes through the two sets of symmetrical air holes 5 and illuminates the photosensitive film 610. When the resistance of the photosensitive film 65 changes, its current changes accordingly. The change in current value indicates that the two sets of vents 5 are not blocked. When the resistance of the photosensitive film 65 and the corresponding current do not change, the corresponding vent 5 changes. As a result, the slider 68 slides along the slide rail 610, causing the straight bar 61 to move away from the cylinder 4. Then, the drive motor 67 drives the straight bar 61 to rotate, causing the needle 63 inside the arc groove 62 on the other side to face the cylinder 4. Then, the slider 68 slides in the opposite direction, causing the straight bar 61 to move closer to the cylinder 4, and causing the needle 63 to gradually slide into the interior of the vent 5, thereby achieving the function of clearing the blockage of the vent 5. Dust removal process: When excessive dust accumulates inside the cylinder 4 and affects airflow, the electromagnet 11 is energized and magnetized. Through the magnetic repulsion between the electromagnet and the magnetic ring 10, the magnetic ring 10 pushes the slip ring 8 along the fixed rod 7, causing it to slide downwards inside the cylinder 4. During the downward movement, the slip ring 8 scrapes off the dust adhering to the inner wall of the cylinder 4, allowing the dust to fall through the opening of the cylinder 4. As the slip ring 8 slides down, it pulls the traction rope 94, causing the drum 95 and the rotating rod 96 to rotate and release the traction rope 94. At the same time, it compresses the torsion spring 97. After the dust removal process is completed, the electromagnet 11 is de-energized and demagnetized. The torsion spring 97 rebounds, causing the drum 95 to reverse and wind around the traction rope 94, thereby pulling the slip ring 8 upwards to reset. When the outside air humidity is high, the electromagnet 11 is energized, causing the slip ring 8 to descend and become flush with one end of the cylinder 4, thus sealing the inside of the cylinder 4. This prevents external moisture from entering the interior of the outer casing 2 through the vent 5, which could cause corrosion of the transformer body 1 or short circuits.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving transformer with a protection function, comprising a transformer body (1), characterized in that: The transformer body (1) is provided with a protective mechanism. The protective mechanism includes a shell (2). The shell (2) is fitted on the outside of the transformer body (1). A fixed sleeve (3) is connected through the inside of the shell (2). A cylinder (4) is fixedly connected through the inside of the fixed sleeve (3). The body of the cylinder (4) has a through air hole (5). The inside of the air hole (5) is connected to the inside of the fixed sleeve (3). A fixed rod (7) is fixedly connected inside the cylinder (4). A slip ring (8) is slidably fitted on the outer surface of the fixed rod (7). The outer surface of the slip ring (8) is slidably connected to the inside of the cylinder (4). A magnetic ring (10) is embedded and fixedly connected on the outer surface of the slip ring (8). The outer surface of the magnetic ring (10) is slidably connected to the outer surface of the cylinder (4). An electromagnet (11) is movably connected to the outside of the magnetic ring (10) by magnetic force. The outer surface of the electromagnet (11) is fixedly connected to the outer surface of the cylinder (4). The cylinder (4) is provided with a monitoring component (6) on its outside. The monitoring component (6) includes two straight bars (61) symmetrically arranged. The outer surfaces of the two straight bars (61) are movably connected to the inside of the fixed sleeve (3). Arc grooves (62) are provided on both sides of the outer surfaces of the two straight bars (61). The inside of the arc grooves (62) is movably connected to the outer surface of the cylinder (4). The inside of the arc grooves (62) that are close to each other on both sides is fixedly connected with needles (63). The outer surfaces of the needles (63) on both sides are movably connected to the inside of the air hole (5). The inside of the arc grooves (62) that are far apart on both sides is respectively embedded and fixedly connected with a light source lamp (64) and a photosensitive film (65). The slip ring (8) is provided with a traction component (9) on its outside. The traction component (9) includes a threaded groove (91) on the outer surface of the slip ring (8). A stud (92) is threadedly connected to the inside of the threaded groove (91). One end of the stud (92) is rotatably connected to a pin (93). One end of the pin (93) is fixedly connected to a traction rope (94). One end of the traction rope (94) is slidably connected to the body of the cylinder (4) and extends to the fixed sleeve. Inside 3), one end of the traction rope (94) is wound with a drum (95). The outer surface of the drum (95) is rotatably connected to the inside of the fixed sleeve (3). The body of the drum (95) is fixedly connected with a rotating rod (96). Both ends of the rotating rod (96) are rotatably connected to the inside of the fixed sleeve (3). A torsion spring (97) is sleeved on the outside of the rotating rod (96). Both ends of the torsion spring (97) are fixedly connected to the outer surface of the drum (95) and the inside of the fixed sleeve (3), respectively.

2. The energy-saving transformer with protective function according to claim 1, characterized in that: The fixed sleeve (3) has a connecting pipe (12) that runs through it. One end of the connecting pipe (12) is connected through it to the inside of the outer shell (2). A fan (13) is fixedly connected inside the connecting pipe (12). A partition (14) is fixedly connected inside the fixed sleeve (3) and at the outer edge of the other end of the connecting pipe (12).

3. An energy-saving transformer with protective function according to claim 1, characterized in that: One end of each of the two straight bars (61) is provided with a groove (66), and a drive motor (67) is fixedly connected inside the grooves (66) on both sides. A slider (68) is fixedly connected to the outer surface of the drive motor (67), and a slide rail (610) is slidably connected to the outer surface of the slider (68). The slide rail (610) rotates around the outer arc surface of the cylinder (4) inside the fixed sleeve (3).

4. An energy-saving transformer with protective function according to claim 3, characterized in that: A drive unit (69) is provided on the outside of the slide rail (610). The drive unit (69) includes a fixed wheel (691). The body of the fixed wheel (691) is fixedly connected to the outer surface of the cylinder (4). A rotating ring (692) is rotatably connected to the outer surface of the fixed wheel (691). A toothed ring (693) is fixedly connected to the outer surface of the rotating ring (692). The toothed ring (693) is sleeved on the outside of the fixed wheel (691). The outer surface of the toothed ring (693) is fixedly connected to one end of the slide rail (610). The outer surface of the toothed ring (693) is rotatably connected to the inside of the fixed sleeve (3).

5. An energy-saving transformer with protective function according to claim 4, characterized in that: The outer surface of the gear ring (693) is meshed with a gear (694), the outer surface of the gear (694) is rotatably connected to the inside of the fixed sleeve (3), the outer surface of the gear ring (693) is fixedly connected with an adjusting motor (695), the outer surface of the adjusting motor (695) is fixedly connected with a fixed plate (696), and the outer surface of the fixed plate (696) is fixedly connected to the inside of the fixed sleeve (3).

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