An adjustable-turn dry-type transformer

Abstract

The utility model relates to a dry -type transformer of adjustable number of turns relates to electric power equipment technical field, including base, lower mounting bracket, upper mounting bracket, first magnetic core, second magnetic core, access primary coil, self -variable secondary coil and pressure regulating component, lower mounting bracket sets up on the base, first magnetic core second magnetic core sets up on the lower mounting bracket, upper mounting bracket sets up on first magnetic core and second magnetic core, access primary coil sets up on first magnetic core, self -variable secondary coil sets up on second magnetic core, the pressure regulating component includes installation department and adjusting part, installation department sets up on second magnetic core, self -variable secondary coil has a plurality of output parts along its axial arrangement, adjusting part slidingly sets up on installation department, the sliding of adjusting part can be in turn with output part electricity is connected, the utility model discloses can pass through adjusting component, can reduce the electric energy loss among power transmission line, and voltage regulation is helpful to improve power transmission efficiency.

Description

Technical Field

[0001] This application relates to the field of power equipment technology, and more particularly to a dry-type transformer with adjustable turns. Background Technology

[0002] Transformers are an indispensable core component of power systems. They convert alternating current (AC) energy of one voltage level to another through electromagnetic induction, thereby achieving efficient transmission and distribution of electrical energy. Traditional transformers have a fixed number of coil turns, which cannot be adjusted according to actual needs. When it is necessary to change the transformer's output voltage, it is usually necessary to replace the internal coils or the entire transformer, which is not only complex to operate but also costly.

[0003] Currently, Chinese utility model patent application CN 221927711U, published on October 29, 2024, discloses a uniform heat dissipation transformer. This transformer includes a core assembly and a coil assembly. The coil assembly is wound around the side surface of the core assembly to form a transformer structure. The core assembly includes a first core and a second core, which are fastened together to form a complete core structure. The coil assembly is wound between the first and second cores. The first core has a first heat dissipation section located on its outer surface. The second core has a second heat dissipation section located on its outer surface. This uniform heat dissipation transformer increases the contact area between the first core and the external air through the first heat dissipation section and the second heat dissipation section, thereby effectively improving the heat exchange efficiency between the first and second cores and the external air, and ultimately enhancing the overall heat dissipation performance of the transformer.

[0004] One type of uniform heat dissipation transformer in related technologies has a fixed number of coil turns, which cannot be adjusted according to actual needs. When it is necessary to change the output voltage of the transformer, it is usually necessary to replace the internal coils or the entire transformer. This is not only complicated to operate but also costly, and cannot achieve the purpose of energy saving. Fixed-turn transformers have obvious shortcomings in terms of flexibility, economy and energy saving, and are difficult to meet the requirements of modern power systems for high efficiency, flexibility and energy saving.

[0005] Therefore, it is necessary to provide a dry-type transformer with adjustable turns to solve the above problems. Utility Model Content

[0006] This application provides an adjustable-turns dry-type transformer to address the technical problems in related technologies where the number of coil turns in the transformer is fixed, cannot be adjusted according to actual needs, is complex to operate, and has high costs, thus failing to achieve energy saving.

[0007] This application provides an adjustable-turns dry-type transformer, including a base, a lower mounting frame, an upper mounting frame, a first magnetic core, a second magnetic core, an input primary coil, a self-transforming secondary coil, and a voltage regulating assembly. The lower mounting frame is disposed on the base, the first and second magnetic cores are disposed on the lower mounting frame, the upper mounting frame is disposed on the first and second magnetic cores, the input primary coil is disposed on the first magnetic core, the self-transforming secondary coil is disposed on the second magnetic core, and the voltage regulating assembly includes a mounting part and an adjusting member. The mounting part is disposed on the second magnetic core, and the self-transforming secondary coil has multiple output members disposed along its axial direction. The adjusting member is slidably disposed on the mounting part, and the sliding of the adjusting member can sequentially electrically connect with the output members.

[0008] The technical solutions described above in this application embodiment have at least the following technical effects: when the user needs to adjust the transformer coil, manual adjustment is performed under the condition of power-off of the transformer. The position of the adjustment component is slidably adjusted on the mounting part and connected to the output component on the self-transformer secondary coil. By changing the effective number of turns connected to the primary coil and the self-transformer secondary coil, the voltage ratio of the transformer is changed, thereby realizing the adjustment of the output voltage.

[0009] The adjustable-turns dry-type transformer provided in this application can reduce power loss in transmission lines through adjusting components. Appropriate voltage adjustment helps improve transmission efficiency and reduce line losses. Adjustment is performed in a de-energized state, which effectively avoids the safety hazards caused by live operation. This method ensures the safety of operators and protects the transformer equipment from damage.

[0010] In some embodiments, the mounting portion includes an upper connecting plate, a lower connecting plate, and a fixing strip. The upper connecting plate is disposed on one end of the second magnetic core near the upper mounting bracket, the lower connecting plate is disposed on one end of the second magnetic core near the lower mounting bracket, one end of the fixing strip is disposed on the upper connecting plate, the other end of the fixing strip is disposed on the lower connecting plate, and a guide rail is provided on the fixing strip.

[0011] In some embodiments, a snap-fit ​​groove is provided on the guide rail at a location corresponding to the output component.

[0012] In some embodiments, the adjusting member includes a slider, a pressing plate, and a retaining spring. The slider is slidably disposed on a guide rail, the pressing plate is movably disposed on the slider, the slider has a retaining groove, the retaining spring is disposed in the retaining groove, one end of the retaining spring away from the retaining groove is disposed on the pressing plate, and the pressing plate is movably disposed in a snap-fit ​​groove by the retaining spring.

[0013] In some embodiments, the slider is provided with a conductive rod.

[0014] In some embodiments, both the first magnetic core and the second magnetic core are made of nanocrystalline alloy material.

[0015] In some embodiments, both the primary coil and the self-transforming secondary coil are provided with an insulating layer. Attached Figure Description

[0016] Figure 1 A three-dimensional structural schematic diagram of a dry-type transformer with adjustable turns provided in an embodiment of this application;

[0017] Figure 2 An exploded structural diagram of a dry-type transformer with adjustable turns provided in an embodiment of this application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 2 Enlarged view at point B in the middle;

[0020] Figure 5 This is an exploded structural diagram of the adjusting member provided in the embodiments of this application;

[0021] The following are the labeling elements in the figure:

[0022] 1. Base; 11. Lower mounting bracket; 12. Upper mounting bracket; 13. First magnetic core; 14. Second magnetic core; 15. Primary coil connection; 16. Self-changing secondary coil; 2. Voltage regulating assembly; 21. Mounting part; 211. Upper connecting plate; 212. Lower connecting plate; 213. Fixing strip; 214. Guide rail; 215. Snap-fit ​​groove; 22. Output component; 23. Conductive rod; 24. Adjusting component; 241. Slider; 242. Pressing plate; 243. Abutment spring; 244. Abutment groove. Detailed Implementation

[0023] Based on this, in order to improve the technical problems existing in related technologies, such as the fixed number of coil turns in the transformer, which cannot be adjusted according to actual needs, the complex operation, and the high cost, and thus cannot achieve the purpose of energy saving, the embodiments of this application provide the following solutions.

[0024] Please refer to the following: Figures 1 to 5This application provides an adjustable-turns dry-type transformer, which includes a base 1, a lower mounting frame 11, an upper mounting frame 12, a first magnetic core 13, a second magnetic core 14, a primary winding 15, a self-transforming secondary winding 16, and a voltage regulating component 2. The lower mounting frame 11 is disposed on the base 1, the first magnetic core 13 and the second magnetic core 14 are disposed on the lower mounting frame 11, the upper mounting frame 12 is disposed on the first magnetic core 13 and the second magnetic core 14, the primary winding 15 is disposed on the first magnetic core 13, the self-transforming secondary winding 16 is disposed on the second magnetic core 14, and the voltage regulating component 2 is disposed on the second magnetic core 14.

[0025] In some embodiments, please refer to the following: Figures 1 to 5 The voltage regulating assembly 2 includes a mounting part 21 and an adjusting component 24. The mounting part 21 includes an upper connecting plate 211, a lower connecting plate 212, and a fixing strip 213. The upper connecting plate 211 is disposed on the end of the second magnetic core 14 near the upper mounting bracket 12, and the lower connecting plate 212 is disposed on the end of the second magnetic core 14 near the lower mounting bracket 11. One end of the fixing strip 213 is disposed on the upper connecting plate 211, and the other end of the fixing strip 213 is disposed on the lower connecting plate 212. A guide rail 214 is provided on the fixing strip 213, and a snap-fit ​​groove 215 is provided on the guide rail 214 at a position corresponding to the output component 22. The self-converting secondary coil 16 moves along the guide rail 214. Multiple output components 22 are axially arranged. The adjusting component 24 includes a slider 241, a pressing plate 242, and abutment spring 243. The slider 241 is slidably arranged on the guide rail 214. The pressing plate 242 is movably arranged on the slider 241. An abutment groove 244 is opened on the slider 241. The abutment spring 243 is arranged in the abutment groove 244. The end of the abutment spring 243 away from the abutment groove 244 is arranged on the pressing plate 242. The pressing plate 242 is movably arranged in the snap-fit ​​groove 215 through the abutment spring 243. The sliding of the slider 241 can be electrically connected to the output components 22 in sequence. A conductive rod 23 is arranged on the slider 241.

[0026] With this setup, when the user needs to adjust the transformer coil, manual adjustment can be performed under the condition of power-off. When different voltage adjustment ratios are required, the pressing plate 242 is pressed, and the pressing plate 242 abuts against the abutment spring 243, causing the pressing plate 242 to abut into the abutment groove 244. This causes the slider 241 to slide on the guide rail 214 of the fixed bar 213. After adjusting to the required ratio, the pressing plate 242 is released, and the abutment spring 243 abuts against the pressing plate 242, placing the pressing plate 242 in the snap-fit ​​groove 215. This allows the slider 241 to connect to the output component 22 on the self-transformer secondary coil 16, and the output wire is connected to the conductive rod 23 for use. Thus, by manually adjusting the position of slider 241, different voltage ratios can be achieved, thereby precisely controlling the transformer's output voltage. This design can meet the diverse voltage needs of users in different scenarios. Different electrical devices may require different voltage levels, and this adjustment method allows for flexible adjustment of the output voltage, ensuring that the equipment can operate under the appropriate voltage. By pressing the pressure plate 242 and sliding slider 241, users can intuitively adjust the transformer's output voltage. This operation method is simple and easy to understand, requiring no complex electrical knowledge or tools. Adjustment under power-off conditions can effectively avoid the safety hazards caused by live operation, ensuring the safety of operators. The design of the abutment spring 243 and the locking groove 215 ensures the sliding... The stable connection between block 241 and output component 22 prevents voltage instability or equipment damage caused by loosening. This manual adjustment method does not require complex electronic control circuits or automated equipment, thus reducing costs and making it suitable for small transformers or applications with infrequent adjustments. By precisely adjusting the output voltage, energy loss caused by voltage mismatch can be reduced, improving transmission efficiency. During equipment installation or commissioning, this manual adjustment method can quickly adjust the output voltage to meet the needs of the field equipment. This design for manually adjusting the number of turns of the transformer coil achieves precise voltage regulation through a simple mechanical structure, offering advantages such as ease of operation, high safety, cost-effectiveness, improved equipment reliability, reduced energy loss, and convenient on-site commissioning and maintenance.

[0027] In some embodiments, please refer to the following: Figures 1 to 2 Both the first magnetic core 13 and the second magnetic core 14 are made of nanocrystalline alloy material, and an insulating layer is provided on both the primary coil 15 and the self-transforming secondary coil 16.

[0028] This configuration allows the nanocrystalline alloy material to possess extremely high magnetic permeability, significantly improving the energy conversion efficiency of the transformer. Compared to traditional silicon steel sheets, the nanocrystalline alloy material has higher magnetic permeability, reducing excitation power and thus increasing transformer efficiency. The nanocrystalline alloy material exhibits extremely low hysteresis and eddy current losses; in high-frequency applications, its losses are only 1 / 2 to 1 / 5 of those of ferrite materials. This reduces energy loss and heat generation during transformer operation, extending equipment lifespan. Furthermore, the nanocrystalline alloy's Curie temperature reaches 570℃, far exceeding the 180℃~200℃ of ferrite, enabling the transformer to operate stably even in high-temperature environments without thermal degradation due to temperature increases. This can lead to performance degradation. The insulation layer can effectively prevent current leakage to places where there should be no current, such as the metal casing or the ground, thereby avoiding electric shock accidents. High-quality insulation materials can isolate short circuits or other fault points inside the transformer, ensuring that the power quality in the power supply network is not affected. This type of transformer can achieve multiple output voltages by adjusting the number of turns according to different application scenarios and load requirements. It is particularly suitable for occasions that require flexible voltage adjustment. Dry-type transformers with adjustable turns using nanocrystalline alloy materials and insulation layers can not only significantly improve energy conversion efficiency and reduce operating losses, but also improve the safety and service life of the equipment, while having good adaptability and flexibility.

[0029] The implementation principle of an adjustable-turns dry-type transformer according to an embodiment of this application is as follows: When the user needs to adjust the transformer coils, the transformer is de-energized and manually adjusted. When different voltage adjustment ratios are required, the pressing plate 242 is pressed, and the pressing plate 242 abuts against the abutment spring 243, causing the pressing plate 242 to abut into the abutment groove 244. This causes the slider 241 to slide on the guide rail 214 of the fixed bar 213. After adjusting to the required ratio, the pressing plate 242 is released, and the abutment spring 243... 43. Pressing plate 242 is placed in the snap-fit ​​groove 215, so that slider 241 is connected to output component 22 on self-transformer secondary coil 16. The output wire is connected to conductive rod 23 for use. At the same time, the magnetic core is made of nanocrystalline alloy material, which has extremely high magnetic permeability, which can significantly improve the energy conversion efficiency of transformer. Insulation layer is provided on both primary coil 15 and self-transformer secondary coil 16, which can effectively prevent current leakage to places where there should be no current, thereby avoiding electric shock accidents.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dry-type transformer with adjustable turns, characterized in that: The system includes a base (1), a lower mounting bracket (11), an upper mounting bracket (12), a first magnetic core (13), a second magnetic core (14), a primary coil (15), a self-changing secondary coil (16), and a voltage regulating assembly (2). The lower mounting bracket (11) is mounted on the base (1), the first magnetic core (13) and the second magnetic core (14) are mounted on the lower mounting bracket (11), the upper mounting bracket (12) is mounted on the first magnetic core (13) and the second magnetic core (14), and the primary coil (15) is connected to the primary coil (16). The self-changing secondary coil (16) is disposed on the first magnetic core (13), and the voltage regulating component (2) is disposed on the second magnetic core (14). The voltage regulating component (2) includes a mounting part (21) and an adjusting member (24). The mounting part (21) is disposed on the second magnetic core (14). The self-changing secondary coil (16) is provided with a plurality of output members (22) along its axial direction. The adjusting member (24) is slidably disposed on the mounting part (21). The sliding of the adjusting member (24) can be electrically connected to the output members (22) in sequence.

2. The adjustable-turns dry-type transformer according to claim 1, characterized in that: The mounting part (21) includes an upper connecting plate (211), a lower connecting plate (212), and a fixing strip (213). The upper connecting plate (211) is disposed on one end of the second magnetic core (14) near the upper mounting bracket (12), and the lower connecting plate (212) is disposed on one end of the second magnetic core (14) near the lower mounting bracket (11). One end of the fixing strip (213) is disposed on the upper connecting plate (211), and the other end of the fixing strip (213) is disposed on the lower connecting plate (212). A guide rail (214) is provided on the fixing strip (213).

3. The adjustable-turns dry-type transformer according to claim 2, characterized in that: A snap-fit ​​groove (215) is provided on the guide rail (214) at the position corresponding to the output component (22).

4. The adjustable-turns dry-type transformer according to claim 3, characterized in that: The adjusting component (24) includes a slider (241), a pressing plate (242), and a retaining spring (243). The slider (241) is slidably mounted on the guide rail (214), and the pressing plate (242) is movably mounted on the slider (241). The slider (241) has a retaining groove (244), and the retaining spring (243) is mounted in the retaining groove (244). One end of the retaining spring (243) away from the retaining groove (244) is mounted on the pressing plate (242), and the pressing plate (242) is movably mounted in the locking groove (215) through the retaining spring (243).

5. A dry-type transformer with adjustable turns according to claim 4, characterized in that: A conductive rod (23) is provided on the slider (241).

6. A dry-type transformer with adjustable turns according to claim 5, characterized in that: Both the first magnetic core (13) and the second magnetic core (14) are made of nanocrystalline alloy material.

7. A dry-type transformer with adjustable turns according to claim 6, characterized in that: Insulating layers are provided on both the primary coil (15) and the self-transformer secondary coil (16).

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