Phase-shifting transformer temperature control system and structure thereof

Abstract

The invention discloses a phase-shifting transformer temperature control system and a structure thereof, and belongs to the field of phase-shifting transformers. Comprising a phase-shifting transformer body, the phase-shifting transformer body comprises a mounting bracket, a plurality of groups of cooling fans are mounted on the mounting bracket, and filter screens are arranged at the air outlet ends of the cooling fans; the adjusting system is arranged on the phase-shifting transformer body and comprises a detection module, a displacement module is further arranged on the phase-shifting transformer body, an air guide system is arranged on the adjusting system, and a cleaning module which is driven by the displacement module to synchronously move so as to clean dust on the surface of the filter screen is arranged on the side face of the cooling fan. According to the phase-shifting transformer temperature control system and the structure thereof, the temperature monitoring module accurately monitors the internal temperature of the winding, the displacement module drives the air guide system to cooperate with the cooling fan for directional heat dissipation, and the cleaning module synchronously cleans the filter screen to guarantee the air volume, so that internal overheating, insulation aging and local faults can be prevented; and safe and stable operation of the phase-shifting transformer is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of phase-shifting transformers, and in particular to a phase-shifting transformer temperature control system and its structure. BACKGROUND

[0002] A phase-shifting transformer is a special transformer that achieves specific power functions by changing the phase difference between the input voltage and the output voltage. Its principle is based on electromagnetic induction in ordinary transformers, and through a specially designed winding structure, the output voltage of the secondary winding produces a controllable phase shift relative to the input voltage of the primary winding. This phase shift can usually be adjusted within a certain range to meet the needs of different scenarios.

[0003] The existing phase-shifting transformer is mainly composed of three-phase windings, cooling devices, support structures, etc. Among them, the three-phase windings are the core of the phase-shifting function, which produces a phase shift through special winding methods; the cooling device contains multiple fans for timely dissipating the heat generated by the windings during operation, ensuring that the equipment works within a safe temperature range; the support structure plays a stable supporting role for the windings and cooling devices, and the overall structure layout is compact, with each component working together to ensure the efficient and stable operation of the phase-shifting transformer. In actual application scenarios, although the active cooling method of symmetrically configuring multiple fans to blow air upward can timely dissipate the heat generated by the three-phase windings during power conversion and phase adjustment through directional airflow, it can maintain the basic operating temperature of the entire device. However, during its long-term continuous operation, the core and coils inside the three-phase windings will generate higher heat accumulation due to the influence of electromagnetic induction effect and winding resistance loss, resulting in a temperature significantly higher than the surface temperature of the windings. Although the current cooling system equipped with fans can cool the winding surface and the external environment of the device, the existing design still lacks precise and real-time detection means for the internal core and coil temperature of the three-phase windings, making it difficult to effectively capture the internal temperature change trend. This limitation of temperature monitoring makes it difficult for workers to detect potential overheating hazards inside the three-phase windings in the first place. Once the internal temperature continues to rise above the safety threshold, not only can it accelerate the aging and failure of the insulation material, but it can also cause local overheating failures, thereby directly and adversely affecting the safe and stable operation of the phase-shifting transformer.

[0004] It should be noted that the above information disclosed in this background section is only for understanding the background of the present application, and therefore, it can include information that does not constitute prior art. SUMMARY

[0005] The embodiment of the present application provides a phase-shifting transformer temperature control system and a structure thereof to solve the problem that the temperature of the internal core and coil of the phase-shifting transformer is difficult to be accurately detected in real time, the hidden danger of overheating is difficult to be found, and the safe and stable operation is affected.

[0006] The embodiment of the present application adopts the following technical scheme: a phase-shifting transformer temperature control system and a structure thereof. The system comprises a phase-shifting transformer body, the phase-shifting transformer body comprises a mounting bracket, a plurality of cooling fans are mounted on the mounting bracket, and the air outlet end of the cooling fan is provided with a filter screen; an adjusting system is arranged on the phase-shifting transformer body, the adjusting system comprises a temperature detection module for detecting the temperature inside the phase-shifting transformer body, a displacement module is further arranged on the phase-shifting transformer body, a wind guide system is arranged on the adjusting system, and a cleaning module for cleaning the surface dust of the filter screen is arranged on the side surface of the cooling fan and moves synchronously with the displacement module.

[0007] Further, two groups of support frame rods are fixed on the two groups of mounting brackets and are symmetrically arranged, two groups of supporting plates are vertically arranged on the support frame rods, an iron core clamping piece is fixedly connected between the two groups of supporting plates arranged transversely, and an iron core assembly is arranged between the iron core clamping pieces.

[0008] Further, two groups of support frame rods are fixed on the mounting bracket and are symmetrically arranged, the displacement module comprises a driving piece embedded on the support frame rod, a gear is fixed to the output end of the driving piece, two groups of racks symmetrically arranged are engaged on the gear, the gear is engaged with the rack to realize the reversing and distribution of power, and the upper surface and the lower surface of the support frame rod are both fixedly provided with a transversely arranged guide rail through a mounting angle piece.

[0009] Further, the rack located at the upper end is defined as a first rack, and the rack located at the lower end is defined as a second rack, three groups of connection side plates two arranged at intervals are arranged on the first rack, three groups of the connection side plates one arranged at intervals are arranged on the second rack, the wind guide system is provided with a plurality of groups, and is mounted on the side surface of the three groups of the connection side plates one.

[0010] Further, the air guide system is sequentially defined from left to right as the first air guide system, the second air guide system, the third air guide system, the fourth air guide system, the fifth air guide system and the sixth air guide system, the first air guide system and the second air guide system constitute air guide group one, which is matched with the leftmost cooling fan, and in the initial state, the first air guide system is fixed on the first rack through the connecting side plate two, and the second air guide system is fixed on the second rack through the connecting side plate one, both of which are located on the left and right sides of the leftmost cooling fan, and the distance is slightly greater than the width of the air outlet end of the leftmost cooling fan.

[0011] Further, the third air guide system and the fourth air guide system constitute air guide group two, which is matched with the centrally arranged cooling fan, and in the initial state, the third air guide system is fixed on the first rack and the fourth air guide system is fixed on the second rack, which are respectively located on the left and right sides of the central cooling fan, and the distance between them is matched with the air outlet end of the cooling fan, and the fifth air guide system and the sixth air guide system constitute air guide group three, which is matched with the rightmost cooling fan, and in the initial state, the fifth air guide system is fixed on the first rack and the sixth air guide system is fixed on the second rack, which are respectively located on the left and right sides of the rightmost cooling fan, and the distance is slightly wider than the air outlet end.

[0012] Further, the air guide system includes an arc-shaped plate fixed on the side of the connecting side plate two and the connecting side plate one, both ends of the arc-shaped plate are fixed with pipe clamp parts, the pipe clamp part includes a clamping ring one fixed on the side of the arc-shaped plate, the side of the clamping ring one is fixed with a clamping ring two, and the two pipe clamp parts jointly clamp and fix a bent pipe, both ends of the bent pipe are not on the same vertical line, the bent pipe is a transmission channel for cooling air, and through the non-vertical line design of both ends, the cooling air is guided from the cooling fan to the gap between the cores, and the lower end of the bent pipe is adapted to align with the air outlet end of the cooling fan to guide the local air direction of the air outlet end of the cooling fan.

[0013] Further, the cleaning module includes a mounting side plate fixed on the side of the cooling fan, two groups of movable shafts are integrally extended upward on the mounting side plate, the two groups of movable shafts are spaced apart, a support rod is connected to the movable shaft through a torsional spring, one end of the support rod is fixed with a scraper rod, one side of the scraper rod close to the filter screen has bristles, and the bristles are partially in contact with the filter screen, a pushing piece two is fixed on the first rack, the pushing piece two is adapted to contact the right side of the support rod on one group of the movable shafts, a pushing piece one is fixed on the second rack, and the pushing piece one is adapted to contact the left side of the support rod on the other group of the movable shafts by contacting the left side of the support rod to push it to rotate.

[0014] Furthermore, a control module is provided on the side of the mounting bracket of the phase-shifting transformer body. The control module is electrically connected to the temperature control probe, the cooling fan of the cooling module, and the drive component of the adjustment module through wires, and is used to receive the real-time temperature signal transmitted by the temperature detection module.

[0015] Furthermore, the core assembly is disposed between two sets of core clamping members, and three sets of high-voltage coils are arranged at intervals on the two sets of support rods. The high-voltage coils have spaced U-shaped insulating cylinders, and the core assembly extends partially into the insulating cylinder. A low-voltage coil is sleeved at a local position where the core assembly extends into the insulating cylinder.

[0016] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects: A temperature control system and its structure for a phase-shifting transformer are disclosed. By adjusting the system's temperature detection module, the temperature of the three-phase winding core and coils inside the phase-shifting transformer can be accurately and in real time detected, enabling staff to promptly grasp the internal temperature change trend and detect potential overheating hazards at the first opportunity. The displacement module drives the air guiding system, which, in conjunction with multiple cooling fans on the mounting bracket, can directionally guide cool air to the internal heating area, efficiently dissipating the heat accumulated inside the three-phase windings and preventing the temperature from exceeding the safety threshold. The cleaning module on the side of the cooling fan moves synchronously with the displacement module, cleaning dust from the filter screen surface, ensuring cooling airflow efficiency, and thus preventing internal overheating from accelerating the aging of insulation materials and causing local faults, effectively ensuring the safe and stable operation of the phase-shifting transformer. Attached Figure Description

[0017] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0018] In the attached diagram: Figure 1 This is an overall schematic diagram of a phase-shifting transformer temperature control system and its structure according to this application; Figure 2 for Figure 1 A schematic diagram of a partial structure; Figure 3 for Figure 2 A schematic diagram of a partial structure; Figure 4 for Figure 3 A schematic diagram of a partial structure; Figure 5 for Figure 4 A schematic diagram of a partial structure; Figure 6 for Figure 2 Schematic diagram of the central air guiding system; Figure 7 for Figure 6 Enlarged view of point A; Figure label: 1. Phase-shifting transformer body; 11. Mounting bracket; 12. Support frame rod; 121. Connecting rod one; 13. High-voltage coil; 14. Core clamping component; 15. Insulating cylinder; 16. Holding component; 161. Temperature control probe; 17. Core assembly; 18. Wiring terminal; 2. Cooling fan; 21. Filter screen; 3. Air guiding system; 31. Curved plate; 32. Clamping ring one; 33. Clamping ring two; 34. Bending pipe; 4. Adjustment system; 41. Mounting side plate; 42. Movable shaft; 43. Support rod; 44. Scraper rod; 45. Gear; 451. Drive component; 47. Guide rail; 48. Rack; 481. Mounting corner piece; 49. Push component two; 410. Connecting side plate two; 411. Push component one; 412. Connecting side plate one. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Reference Figures 1-3 As shown, this embodiment of the invention provides a phase-shifting transformer temperature control system and its structure, including a phase-shifting transformer body 1. The phase-shifting transformer body 1 includes a mounting bracket 11, which is the mounting base of the transformer body. Two sets of symmetrically arranged support rods 12 are fixed on the mounting bracket 11 by fasteners. The two sets of support rods 12 are connected and fixed by connecting rods 121. Nuts are threaded to both ends of the two sets of connecting rods 121. The nuts are respectively close to the opposite sides of the two sets of support rods 12. At the same time, three sets of high-voltage coils 13 are arranged at intervals on the two sets of support rods 12. The high-voltage coils 13 are the high-voltage power carrying components of the transformer, realizing the magnetoelectric conversion of electrical energy. Furthermore, two sets of support plates (not shown in the figure) are vertically installed on each of the two sets of support rods 12, and a core clamping member 14 (see reference) is connected and fixed between the two sets of support plates arranged horizontally. Figure 2Furthermore, a core assembly 17 is provided between the core clamping members 14. The core assembly 17 is the core component of the transformer's magnetic circuit, enabling the magnetic coupling transmission of electrical energy. At the same time, the two sets of core clamping members 14 are connected and fixed by a connecting rod two (not shown in the figure). The connecting rod two has a similar structure to the connecting rod one 121. The high-voltage coil 13 has a spaced U-shaped insulating cylinder 15. The core assembly 17 extends partially into the insulating cylinder 15, and a low-voltage coil (not shown in the figure) is sleeved at a local position where the core assembly 17 extends into the insulating cylinder 15. The insulating cylinder 15 is an insulating isolation component between the high-voltage coil 13, the low-voltage coil, and the core, ensuring electrical safety. In addition, on both sets of iron core clamping members 14 and two sets of support rods 12, there are clamping members 16 that support the insulating cylinder 15 by fasteners. The clamping members 16 have opening slots (not shown in the figure) that are adapted to the edge of the insulating cylinder 15. The opening slots are adapted to the edge of the insulating cylinder 15 to ensure the stability of the installation of the insulating cylinder 15. The side of the iron core clamping member 14 is connected to the terminal 18, which is the power input and output component of the transformer, realizing the electrical connection between the external circuit and the internal coil. Multiple cooling fans 2 are fixed on the mounting bracket 11 at both sides of the high-voltage coil 13. These are the heat dissipation components of the transformer. They reduce the temperature of the coil and the iron core through forced air cooling to ensure the safe operation of the equipment. The air outlet of the cooling fan 2 has a filter screen 21 to prevent external dust from entering the transformer and avoid dust accumulation from affecting heat dissipation and electrical insulation. In actual operation, when the phase-shifting transformer body 1 is working, the high-voltage coil 13 and the low-voltage coil achieve magnetic coupling through the core assembly 17, completing the phase-shifting conversion of electrical energy. During this process, the control system starts the cooling fan 2. The cooling fan 2 blows the cooled air filtered through the filter screen 21 onto the high-voltage coil 13 and the core assembly 17, accelerating heat dissipation and reducing the equipment temperature. The mounting bracket 11, support rod 12, connecting rod 121, core clamping piece 14, and other structural components jointly ensure the structural stability of the phase-shifting transformer body 1. The insulating cylinder 15 effectively isolates the high-voltage coil 13 from the core and the low-voltage coil, preventing electrical short circuits. The wiring terminal 18 realizes a reliable connection between the external power grid and the internal coils of the transformer. The overall system, through the synergy of temperature detection and air cooling, ensures the stable operation of the phase-shifting transformer within a safe temperature range, improving the reliability and service life of the equipment.

[0022] like Figures 4-7As shown, an adjustment system 4 is installed on both sets of support rods 12. This adjustment system 4 is an intelligent temperature control adjustment system for the phase-shifting transformer. Through the combination of temperature monitoring and air guidance, it achieves precise control of heat dissipation inside the transformer. The adjustment system 4 includes a temperature detection module installed on the core clamping member 14, which is the core unit of temperature monitoring and provides a precise temperature trigger signal for the cooling system. The temperature detection module includes a temperature control probe 161 vertically installed on the core clamping member 14. The temperature control probe 161 is a PT100 platinum resistance temperature sensor. The detection end of the temperature control probe 161 is deeply embedded in the center area of ​​the gap between the core assembly 17 and the low-voltage coil, directly capturing the real-time heat changes of core loss and coil copper loss. The Teflon tube protective sleeve wrapped around the detection end of the temperature control probe 161 can not only withstand the high temperature environment inside the transformer (up to 180℃ or higher), but also isolate the electromagnetic interference between the coil and the core and the chemical corrosion of the insulating oil, ensuring the stability of temperature signal acquisition. Through this deeply embedded installation method, the temperature control probe 161 can capture the temperature rise curve of the core assembly 17 and the temperature change of the low-voltage coil in real time. The two sets of support rods 12 are equipped with displacement modules. Each displacement module includes a drive unit 451 embedded in the support rod 12. The drive unit 451 is a forward and reverse motor, which is the power source of the displacement module. It drives relative motion by forward and reverse rotation. A gear 45 is fixed at the output end of the drive unit 451, and two sets of racks 48 are symmetrically arranged meshing with the gear 45. The power is reversed and distributed by meshing with the gear 45. At the same time, horizontally arranged guide rails 47 are fixedly installed on the upper and lower surfaces of the support rod 12 by mounting brackets 481. The two sets of racks 48 are slidably connected to the two sets of guide rails 47 respectively. The horizontal linear motion is achieved by the sliding cooperation between the racks 48 and the guide rails 47 to ensure the linearity and stability of the racks 48. It should be noted that, here, in the context of... Figure 4 Based on this, the rack 48 located at the upper end is defined as the first rack, and the rack 48 located at the lower end is defined as the second rack. Three sets of connecting side plates 410 with spacing are arranged on the first rack, and three sets of connecting side plates 412 with spacing are arranged on the second rack. A guide system 3 is fixed on the side of the three sets of connecting side plates 410, and a guide system 3 is fixed on the side of the three sets of connecting side plates 412. The guide system 3 is a cooling air guiding and distribution component that accurately guides the air from the cooling fan 2 to the core heating area of ​​the transformer. by Figure 6For example, the air guiding system (3) is defined from left to right as the first air guiding system, the second air guiding system, the third air guiding system, the fourth air guiding system, the fifth air guiding system and the sixth air guiding system. The first air guiding system and the second air guiding system constitute the first air guiding group, which is specially adapted to the leftmost cooling fan 2. In the initial state, the first air guiding system is fixed on the first rack (upper rack 48) by connecting side plate 2 410, and the second air guiding system is fixed on the second rack (lower rack 48) by connecting side plate 1 412. The two are located on the left and right sides of the leftmost cooling fan 2 respectively, and the distance is slightly greater than the width of the air outlet of the leftmost cooling fan 2. At this time, the air blown out by the cooling fan 2 is in a natural diffusion state, and only part of it can act on the gap between the iron core assembly 17 and the low voltage coil. When the displacement module is activated, the drive component 451 drives the gear 45 to rotate. The gear 45 meshes and drives the first rack and the second rack to move towards each other along the guide rail 47. The two sets of air guiding systems move closer to each other synchronously with the racks. The arc-shaped plate 31 gradually fits the air outlet contour of the cooling fan 2. The lower inlet of the bent pipe 34 is aligned with the air outlet center, concentrating and gathering some of the cold air. This allows some of the airflow to be guided through the bent pipe 34 to the gap between the iron core assembly 17 and the low-voltage coil, thereby improving the heat dissipation efficiency.

[0023] The third and fourth air guiding systems constitute air guiding group two, adapted to the centrally located cooling fan 2. Initially, the third air guiding system is fixed to the first rack and the fourth air guiding system is fixed to the second rack, located on the left and right sides of the central cooling fan 2, respectively. The distance between them matches the air outlet of the cooling fan 2, and the natural diffusion coverage of the cold air is limited. When the displacement module drives the two sets of racks 48 to move towards each other, the third air guiding system moves with the first rack and the fourth air guiding system moves with the second rack. The two gradually approach and gather part of the cold air from the air outlet of the central cooling fan 2. That is, the lower inlet of the bent pipe 34 is tightly connected to the air outlet, and the upper outlet points to the gap between the iron core assembly 17 and the low-voltage coil at the corresponding position, ensuring that the cooling air is blown directionally to the heat-generating core area to achieve targeted cooling.

[0024] The fifth and sixth air guiding systems constitute air guiding group three, which is adapted to the rightmost cooling fan 2. In the initial state, the fifth air guiding system is fixed to the first rack and the sixth air guiding system is fixed to the second rack, located on the left and right sides of the rightmost cooling fan 2, respectively, with a spacing slightly wider than the air outlet. When the displacement module is activated, under the transmission of gear 45 and rack 48, the fifth air guiding system moves with the first rack and the sixth air guiding system moves with the second rack. Both move towards the air outlet of the cooling fan 2 in sync. The gathered cold air is introduced into the gap between the rightmost iron core assembly 17 and the low-voltage coil through the bending pipe 34, ensuring that the air volume of each cooling fan 2 can be efficiently applied to the corresponding heat-generating area, avoiding energy waste and achieving balanced temperature control inside the transformer.

[0025] The air guiding system 3 is a directional transmission component for cooling air, used to precisely guide cooling air into the gap of the transformer's heating core. The air guiding system 3 includes an arc-shaped plate 31 fixed to the sides of connecting side plate 2 410 and connecting side plate 1 412. Both ends of the arc-shaped plate 31 are fixed with pipe clamps. Each pipe clamp includes a clamping ring 1 32 fixed to the side of the arc-shaped plate 31, and a clamping ring 2 33 is fixed to the side of clamping ring 1 32 by fasteners. A bent pipe 34 is clamped and fixed between the two sets of pipe clamps. The two ends of 4 are not on the same vertical line. The bent pipe 34 is the transmission channel for cooling air. Through the non-vertical design of the two ends, the cooling air is accurately guided from the cooling fan 2 to the gap between the iron core. Thus, the upper end of the bent pipe 34 is suitable to be aligned with the gap between the iron core assembly 17 and the low voltage coil from the lower end position when the displacement module is started. The lower end of the bent pipe 34 is suitable to be aligned with the air outlet of the cooling fan 2 to guide the local airflow of the air outlet of the cooling fan 2 and blow it into the gap between the iron core assembly 17 and the low voltage coil.

[0026] In actual operation, when the phase-shifting transformer body 1 is working, the temperature control probe 161 monitors the temperature of the gap between the core assembly 17 and the low-voltage coil in real time. When the temperature reaches the preset threshold, the control system activates the drive component 451 of the displacement module. The drive component 451 drives the gear 45 to rotate, which in turn causes the two sets of racks 48 to move relative to each other along the guide rail 47. Through the connecting side plate 1 412 and the connecting side plate 2 410, the bent pipes 34 of each air guide system 3 move closer to and align with the air outlet of the cooling fan 2. At the same time, the cooling fan 2 starts, and the cold air filtered by the filter screen 21 is precisely introduced into the gap between the core assembly 17 and the low-voltage coil through the bent pipes 34 to directly cool the heat-generating core area. When the temperature drops to a safe range, the drive component 451 reverses its rotation, causing the air guide system 3 to reset, and the cooling fan 2 stops running. This precise temperature detection, combined with directional airflow, ensures that the phase-shifting transformer operates efficiently within a safe temperature range. It avoids energy waste caused by blind heat dissipation and prevents equipment overheating failures due to insufficient heat dissipation, thereby improving the operational reliability and service life of the phase-shifting transformer.

[0027] like Figure 4As shown, a cleaning module is provided on the side of the cooling fan 2. This module is an automatic cleaning component for the filter screen 21. The cleaning module is driven by the movement of the rack 48 to clean the filter screen 21 and prevent dust blockage from affecting heat dissipation. The cleaning module includes a mounting side plate 41 fixed to the side of the cooling fan 2. Two sets of movable shafts 42 extend upward from the mounting side plate 41. The two sets of movable shafts 42 are spaced apart, and a support rod 43 is connected to the movable shaft 42 by a torsion spring. A scraper rod 44 is fixed to one end of the support rod 43. The scraper rod 44 rests against... One side of the filter screen 21 has bristles that partially contact the filter screen 21. A pusher 49 is fixed on the first rack and is a drive triggering component of the cleaning module. It is pushed to rotate by contacting the right side of the support rod 43. The pusher 49 is adapted to contact the right side of the support rod 43 on a set of movable shafts 42. A pusher 411 is fixed on the second rack and is a drive triggering component of the cleaning module. It is pushed to rotate by contacting the left side of the support rod 43. The pusher 411 is adapted to contact the left side of the support rod 43 on another set of movable shafts 42.

[0028] In actual operation, when the two sets of racks 48 of the displacement module move towards each other, pusher 1 411 and pusher 2 49 move synchronously with the racks. When pusher 1 411 contacts the left side of the support rod 43, it pushes the support rod 43 to rotate around the movable shaft 42, causing the bristles of the scraper rod 44 to slide on the surface of the filter screen 21 and clean the attached dust. Similarly, when pusher 2 49 contacts the right side of the support rod 43, it also pushes the scraper rod 44 to clean the filter screen 21. This design ensures that the filter screen 21 of the cooling fan 2 is always kept clean, avoiding dust blockage that affects heat dissipation efficiency and ensuring the long-term stable operation of the phase-shifting transformer cooling system.

[0029] Furthermore, a control module is installed on the side of the mounting bracket 11 of the phase-shifting transformer body 1. The control module is electrically connected to the PT100 platinum resistance temperature control probe 161 of the temperature detection module, the cooling fan 2 of the cooling module, and the drive component 451 of the adjustment module through wires. It is used to receive the real-time temperature signal transmitted by the temperature detection module. When the temperature at the gap between the core assembly 17 and the low-voltage coil exceeds the preset threshold (e.g., 80°C), the control module sends a command to the cooling module to start the cooling fan 2 and a command to the adjustment module to drive the displacement unit to operate. When the temperature drops to a safe range (e.g., below 60°C), the control module sends a command to the cooling module to stop the cooling fan 2 and a command to the adjustment module to reset the displacement unit. This realizes intelligent linkage control of the entire temperature control system and ensures that the phase-shifting transformer operates stably within the safe temperature range.

[0030] Working Principle: During operation of the phase-shifting transformer, the core assembly 17, the high-voltage coil 13, and the low-voltage coil generate heat due to electromagnetic induction. The core heat generation area is concentrated in the gap between the core assembly 17 and the low-voltage coil. The temperature control probe 161 (PT100 platinum resistance sensor), mounted on the core clamping member 14, is deeply embedded in the center of this gap. The Teflon tube protective sleeve at its detection end isolates it from high temperature, electromagnetic interference, and insulating oil corrosion, capturing temperature changes in real time and transmitting the signal to the control system. When the temperature exceeds a preset threshold (e.g., 80℃), the control system triggers cooling and adjustment commands; when the temperature drops to a safe range (e.g., below 60℃), it issues stop and reset commands, providing accurate triggering basis for the entire temperature control system.

[0031] After receiving the temperature rise signal, the control system synchronously starts the displacement modules of the cooling fan 2 and the adjustment system 4: the drive component 451 (forward and reverse motor) drives the gear 45 to rotate, meshing and driving the first rack and the second rack to move towards each other along the guide rail 47. Through the connection of side plate 1 412 and side plate 2 410, the rack drives the six sets of air guiding systems 3 to move synchronously. Air guiding system 1 (first and second air guiding systems), air guiding system 2 (third and fourth air guiding systems), and air guiding system 3 (fifth and sixth air guiding systems) move towards the air outlet of the corresponding cooling fan 2. The arc-shaped plate 31 gathers the cold air to prevent diffusion, and the bent pipe 34, through its non-vertical design, accurately guides the filtered cold air into the gap between the iron core assembly 17 and the low-voltage coil, achieving directional cooling of the heat-generating core area. After the temperature reaches the target, the drive component 451 reverses, the rack drives the air guiding system to reset, and the cooling fan 2 stops running.

[0032] During the movement of the rack driven by the displacement module, the cleaning module simultaneously cleans the filter screen 21: when the first and second racks move towards each other, pusher 1 411 contacts the left side of support rod 43 along with the second rack, and pusher 2 49 contacts the right side of the other support rod 43 along with the first rack, pushing the support rod 43 to rotate around the movable shaft 42, causing the bristles of the scraper rod 44 to slide on the surface of the filter screen 21 to remove adhering dust; when the racks reset, the pushers separate from the support rod 43, and the support rod 43 returns to its original position due to the action of the torsion spring, completing one cleaning cycle. This linkage design ensures that the filter screen 21 is always unobstructed, avoiding dust blockage that affects cooling air efficiency and ensuring the long-term stable operation of the heat dissipation system.

[0033] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A phase-shifting transformer temperature control system and its structure, characterized in that: The system includes a phase-shifting transformer body (1), which includes a mounting bracket (11) on which multiple cooling fans (2) are mounted. The air outlet of the cooling fans (2) has a filter screen (21). An adjustment system (4) is provided on the phase-shifting transformer body (1). The adjustment system (4) includes a temperature detection module for detecting the internal temperature of the phase-shifting transformer body (1). The phase-shifting transformer body (1) is also provided with a displacement module. The adjustment system (4) is provided with a wind guide system (3). The side of the cooling fans (2) is provided with a cleaning module that moves synchronously with the displacement module to clean the dust on the surface of the filter screen (21).

2. The phase-shifting transformer temperature control system and its structure according to claim 1, characterized in that: Two sets of symmetrically arranged support rods (12) are fixed on the two sets of mounting brackets (11). Two sets of support plates are vertically arranged on each support rod (12). A core clamping member (14) is connected and fixed between the two sets of horizontally arranged support plates. A core assembly (17) is arranged between the core clamping members (14). The temperature detection module includes a temperature control probe (161) vertically arranged on the core clamping member (14). The detection end of the temperature control probe (161) is deeply embedded in the central area of ​​the gap between the core assembly (17) and the low-voltage coil of the phase-shifting transformer body (1) to capture the real-time heat changes of core loss and coil copper loss. The detection end of the temperature control probe (161) is wrapped with a Teflon tube protective sleeve.

3. The phase-shifting transformer temperature control system and its structure according to claim 2, characterized in that: The displacement module includes a drive unit (451) embedded in the support rod (12). A gear (45) is fixed at the output end of the drive unit (451). Two sets of racks (48) are meshed on the gear (45). The reversal and distribution of power are achieved by meshing the racks (48) with the gears (45). The upper and lower surfaces of the support rod (12) are fixedly mounted with horizontally arranged guide rails (47) through mounting brackets (481). The two sets of racks (48) are slidably connected to the two sets of guide rails (47) respectively. The horizontal linear motion is achieved by the sliding cooperation between the racks (48) and the guide rails (47).

4. The phase-shifting transformer temperature control system and its structure according to claim 3, characterized in that: The rack (48) located at the upper end is defined as the first rack, and the rack (48) located at the lower end is defined as the second rack. Three sets of connecting side plates (410) with spacing are arranged on the first rack, and three sets of connecting side plates (412) with spacing are arranged on the second rack. The air guiding system (3) is provided with multiple sets, and all of them are installed on the side of the three sets of connecting side plates (412).

5. The phase-shifting transformer temperature control system and its structure according to claim 4, characterized in that: The air guiding system (3) is defined sequentially from left to right as the first air guiding system, the second air guiding system, the third air guiding system, the fourth air guiding system, the fifth air guiding system and the sixth air guiding system. The first air guiding system and the second air guiding system constitute air guiding group one, which is adapted to the leftmost cooling fan (2). In the initial state, the first air guiding system is fixed on the first rack through the second connecting side plate (410), and the second air guiding system is fixed on the second rack through the first connecting side plate (412). The two are located on the left and right sides of the leftmost cooling fan (2) respectively, and the distance between them is slightly greater than the width of the air outlet of the leftmost cooling fan (2).

6. The phase-shifting transformer temperature control system and its structure according to claim 5, characterized in that: The third and fourth air guide systems constitute air guide group two, which is adapted to the centrally located cooling fan (2). Initially, the third air guide system is fixed to the first rack and the fourth air guide system is fixed to the second rack, respectively located on the left and right sides of the centrally located cooling fan (2). The distance between the two is matched with the air outlet of the cooling fan (2). The fifth and sixth air guide systems constitute air guide group three, which is adapted to the rightmost cooling fan (2). In the initial state, the fifth air guide system is fixed to the first rack and the sixth air guide system is fixed to the second rack, respectively located on the left and right sides of the rightmost cooling fan (2), with the distance slightly wider than the air outlet.

7. The phase-shifting transformer temperature control system and its structure according to claim 5, characterized in that: The air guiding system (3) includes an arc-shaped plate (31) fixed to the side of the connecting side plate 2 (410) and the connecting side plate 1 (412). Both sides of the arc-shaped plate (31) are fixed with pipe clamps. The pipe clamps include clamping ring 1 (32) fixed to the side of the arc-shaped plate (31). The side of clamping ring 1 (32) is fixed with clamping ring 2 (33). The two sets of pipe clamps clamp and fix a bent pipe (34). The two ends of the bent pipe (34) are not on the same vertical line. The bent pipe (34) is the transmission channel of cooling air. Through the non-vertical design at both ends, the cooling air is guided from the cooling fan (2) to the gap of the iron core. The lower end of the bent pipe (34) is suitable to be aligned with the air outlet of the cooling fan (2) to guide the local airflow of the air outlet of the cooling fan (2).

8. The phase-shifting transformer temperature control system and its structure according to claim 6, characterized in that: The cleaning module includes a mounting side plate (41) fixed to the side of the cooling fan (2). Two sets of movable shafts (42) extend upward integrally on the mounting side plate (41). The two sets of movable shafts (42) are spaced apart. A support rod (43) is connected to the movable shaft (42) by a torsion spring. A scraper rod (44) is fixed to one end of the support rod (43). The scraper rod (44) has bristles on the side near the filter screen (21). The bristles are partially in contact with the filter screen (21). A pusher (29) is fixed on the first rack. The pusher (29) is adapted to contact the right side of the support rod (43) on one set of movable shafts (42). A pusher (411) is fixed on the second rack. By contacting the left side of the support rod (43), it is pushed to rotate. The pusher (411) is adapted to contact the left side of the support rod (43) on the other set of movable shafts (42).

9. The phase-shifting transformer temperature control system and its structure according to claim 8, characterized in that: A control module is provided on the side of the mounting bracket (11) of the phase-shifting transformer body (1). The control module is electrically connected to the temperature control probe (161), the cooling fan (2) of the cooling module and the drive unit (451) of the adjustment module through wires, and is used to receive the real-time temperature signal transmitted by the temperature detection module.

10. A phase-shifting transformer temperature control system and its structure according to claim 2, characterized in that: The core assembly (17) is disposed between two sets of core clamping members (14). Three sets of high-voltage coils (13) are arranged at intervals on the two sets of support rods (12). The high-voltage coils (13) have spaced U-shaped insulating cylinders (15). The core assembly (17) extends partially into the insulating cylinder (15). A low-voltage coil is sleeved at a local position where the core assembly (17) extends into the insulating cylinder (15).

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