Phase-shifting rectifier transformer air duct
By designing a phase-shift rectifier transformer air cylinder combining comb straps and air cylinder openings, the problem of poor heat dissipation of the transformer is solved, more efficient heat dissipation and insulation performance is achieved, and service life is extended and the stable operation of the system is ensured.
Patent Information
- Application Number
- CN202420554855.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The existing transformers have poor heat dissipation, resulting in excessive temperature rise, affecting system performance and service life.
A phase-shift rectifier transformer air cylinder is designed, using an innovative combination of comb straps and air cylinders, and the cooling effect and insulation performance are optimized through the air cylinder opening design.
It effectively improves the heat dissipation efficiency and insulation performance of the transformer, extends the service life, and ensures stable operation under high load operating conditions.
Smart Images
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Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of transformer design, and in particular relates to a phase-shifting rectifier transformer wind tube. Background Art
[0002] In the application of modern high-voltage inverters, phase-shifting rectifier transformers play a vital role. They provide the necessary multi-phase rectifier power supply for high-voltage inverters, ensuring that high-voltage inverters can operate efficiently and stably. This type of transformer is not only one of the core components in high-voltage inverters, but its safe and reliable continuous operation is also the key to the stability of system performance. However, in the operation of transformers, the temperature rise problem has always been an important consideration. Excessive temperature rise of the transformer will not only accelerate the aging process of the insulation system, thereby shortening the service life of the transformer, but also affect the safety and reliability of the entire inverter system.
[0003] In view of this, controlling the temperature rise of the transformer and keeping it within a normal range has become an important means to ensure the reliability of the entire high-voltage inverter system. In order to solve the problem of transformer temperature rise, one of the most economical and effective methods is to reduce the temperature rise by optimizing the heat dissipation system of the transformer. Among the many heat dissipation technologies, it is particularly important to design an efficient heat dissipation duct solution. The application of this heat dissipation technology is not only of great significance to improving the heat dissipation efficiency of the transformer, but also has a significant impact on extending the service life of the transformer and improving the reliability and stability of the entire high-voltage inverter system. By optimizing the heat dissipation design, the operating temperature of the transformer can be effectively controlled without adding additional costs, ensuring the safe and stable operation of the system. Utility Model Content
[0004] In view of the deficiencies existing in the related technologies, the utility model provides a phase-shifting rectifier transformer air duct to solve the technical problems of the existing special transformer outlet and poor heat dissipation.
[0005] The present application provides a phase-shifting rectifier transformer wind tube, comprising: an insulating tube, a comb-shaped support bar, a winding, a coil outlet and a wind tube, wherein the comb-shaped support bar is bonded to the outer surface of the insulating tube, the winding is wound on the comb-shaped support bar, the wind tube is sleeved on the outer surface of the comb-shaped support bar, a plurality of wind tube openings are arranged on the wind tube, the coil outlet of the winding is connected through the wind tube openings, and the gap between the coil outlet and the wind tube openings is filled with insulating glue; the wind tube is surrounded by one or more insulating plates, the inner clamping plate and the outer clamping plate are clamped on both sides of the joint of the insulating plates, and the joint of the inner clamping plate, the outer clamping plate and the insulating plate are connected by bolts; at the joint of the insulating plates, the mounting hole I of the insulating plate on one side is circular, and the mounting hole II of the insulating plate on the other side is oblong or elliptical.
[0006] In a possible implementation manner, the mounting hole of the inner clamping plate is a threaded hole.
[0007] In a possible implementation manner, the air cylinder is sleeved on the outer surface of the comb-shaped support bar and fits closely with the outer surface of the comb-shaped support bar.
[0008] In a possible implementation, the air duct is a 1 mm thick H-class high temperature resistant insulation board.
[0009] In a possible implementation, an air passage that passes through from top to bottom is formed between the winding and the insulating cylinder, and between the winding and the wind cylinder.
[0010] In a possible implementation, the number of the air duct openings is set to 9 groups, which are arranged in 3 rows and 3 columns, and each group is set to 8 air duct openings arranged longitudinally.
[0011] In a possible implementation, the wind tube of the phase-shifting rectifier transformer is installed in cooperation with the special transformer.
[0012] Based on the above technical solution, the wind duct of the phase-shifting rectifier transformer of the utility model realizes optimized heat dissipation effect and insulation performance through the innovative combination of comb-shaped support bars and the wind duct, as well as the wind duct opening design; by setting a plurality of wind duct openings, the outlet of the special transformer in a high-temperature working environment is effectively solved. The utility model further enhances its scope of application and practicality, and solves the problems of the outlet and heat dissipation of the special transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0014] Figure 1 This is a structural schematic diagram of a phase-shifting rectifier transformer wind tube according to one embodiment of the utility model;
[0015] Figure 2 for Figure 1 A top view of
[0016] Figure 3 This is a schematic diagram of the installation structure of the inner and outer clamping plates of the wind tube of the phase-shifting rectifier transformer according to one embodiment of the utility model;
[0017] Figure 4 This is a schematic diagram of the expansion of the wind tube of the phase-shifting rectifier transformer wind tube according to one embodiment of the utility model;
[0018] Figure 5 This is a schematic diagram of the expansion of the wind tube of the phase-shifting rectifier transformer wind tube according to another embodiment of the utility model;
[0019] Figure 6This is a schematic diagram of the expansion of the wind tube of the phase-shifting rectifier transformer wind tube according to another embodiment of the utility model;
[0020] Figure 7 This is a schematic diagram of the comb-shaped support bar structure of the wind tube of the phase-shifting rectifier transformer according to one embodiment of the utility model;
[0021] Figure 8 The utility model is a schematic structural diagram of an inner clamping plate and an outer clamping plate of a wind tube of a phase-shifting rectifier transformer according to one embodiment of the utility model.
[0022] In the figure:
[0023] 1. Insulating tube; 2. Comb-shaped stay; 3. Winding; 4. Air tube; 7. Inner clamping plate; 8. Outer clamping plate; 9. Bolt; 10. Coil protrusion; 11. Air tube opening; 12. Mounting hole I; 13. Mounting hole II. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0025] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0026] The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.
[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0028] In order to solve the technical problem of poor heat dissipation of transformers in the prior art, the present application provides a phase-shifting rectifier transformer air duct.
[0029] See also Figure 1 , Figure 2 and Figure 3 , Figure 7 , Figure 8 The present application provides a phase-shifting rectifier transformer wind tube, a phase-shifting rectifier transformer wind tube, characterized in that it includes: an insulating tube 1, a comb-shaped support bar 2, a winding 3, a coil outlet 10 and a wind tube 4, the comb-shaped support bar 2 is bonded to the outer surface of the insulating tube 1, the winding 3 is wound on the comb-shaped support bar 2, the wind tube 4 is sleeved on the outer surface of the comb-shaped support bar 2, a plurality of wind tube openings 11 are arranged on the wind tube 4, the coil outlet 10 of the winding 3 is connected through the wind tube opening 11, and the gap between the coil outlet 10 and the beginning of the wind tube is filled with insulating glue; the wind tube 4 is surrounded by one or more insulating plates, the inner clamping plate 7 and the outer clamping plate 8 are clamped on both sides of the joint of the insulating plates, and the joint of the inner clamping plate 7, the outer clamping plate 8 and the insulating plates is connected by bolts 9; at the joint of the insulating plates, the mounting hole Ⅰ12 of the insulating plate on one side is circular, and the mounting hole Ⅱ13 of the insulating plate on the other side is oblong or elliptical.
[0030] In the above scheme, the present invention aims to solve the problems of low heat dissipation efficiency and insufficient insulation performance of traditional transformers by designing a uniquely structured phase-shifting rectifier transformer wind tube. The wind tube is constructed of high-performance insulating materials, and uses comb-shaped stays 2 to enhance the support stability of the winding 3. At the same time, through the design of the wind tube opening 11, the convenient lead-out of the coil head 10 of the winding 3 is achieved, and the wind tube is filled with insulating glue to enhance the sealing of the wind tube and ensure the heat dissipation effect of the air duct. In addition, the structural design of the wind tube 4, especially the use of the inner clamping plate 7 and the outer clamping plate 8 and the way they are connected to the insulating plate through bolts 9, refer to Figure 8 , which not only improves the mechanical stability of the wind tube 4, but also facilitates the installation and maintenance of the wind tube 4. Through this design, the phase-shifting rectifier transformer wind tube of the present invention can effectively improve the heat dissipation efficiency and insulation performance of the transformer, extend the service life of the transformer, and ensure the stable operation of the transformer under high load working conditions.
[0031] In a possible implementation manner, the mounting hole of the inner clamping plate is a threaded hole.
[0032] In this embodiment, a threaded hole is tapped in the mounting hole of the inner clamping plate 7, and the bolt 9 passes through the threaded holes of the outer clamping plate 8, the air duct 4 and the inner clamping plate 7, so that the air duct is assembled with the inner and outer clamping plates, further enhancing the fixing effect and sealing performance of the air duct during the assembly process. The design of the threaded hole makes the connection between the air duct and the inner and outer clamping plates 7 and 8 more stable, preventing loosening due to vibration and other reasons during the operation of the transformer, thereby improving the overall stability and safety of the transformer. In addition, the design of the threaded hole also facilitates the disassembly and maintenance of the air duct, providing convenience for the long-term operation of the transformer.
[0033] In a possible implementation manner, the air cylinder 4 is sleeved on the outer surface of the comb-shaped support bar 2 and fits closely with the outer surface of the comb-shaped support bar 2 .
[0034] In this embodiment, the combination effect between the air duct 4 and the comb-shaped stay 2 is further enhanced. By designing the air duct 4 to be able to fit tightly and fit the outer surface of the comb-shaped stay 2, a better heat dissipation effect and structural stability are achieved. This close-fitting design not only effectively utilizes the supporting function of the comb-shaped stay 2 and increases the mechanical strength of the entire assembly, but also maximizes the air flow path through the close cooperation between the air duct 4 and the comb-shaped stay 2, thereby improving the cooling efficiency and ensuring the stability and safety of the winding 3 under long-term high-intensity working conditions.
[0035] In a possible implementation, the air cylinder 4 is a 1 mm thick H-class high temperature resistant insulation board.
[0036] In this embodiment, by selecting a 1mm thick H-class high temperature resistant insulation board as the material of the wind tube 4, the temperature resistance and insulation safety of the wind tube 4 are significantly improved. The H-class high temperature resistant insulation board can withstand higher operating temperatures, adapt to the working requirements of the transformer under high load or high temperature environment, and ensure that the insulation material will not age or be damaged due to temperature increase, thereby extending the service life of the wind tube and the entire transformer. In addition, the thickness of 1mm not only ensures material strength and high temperature resistance, but also maintains good flexibility, which is convenient for the processing and installation of the wind tube, and provides more flexibility and reliability for transformer design.
[0037] In a possible implementation manner, an air passage penetrating vertically is formed between the winding 3 and the insulating cylinder 1 , and between the winding 3 and the wind cylinder 4 .
[0038] In this embodiment, an air passage that passes through the winding 3, the insulating cylinder 1 and the wind cylinder 4 is designed to further optimize the flow path of the internal airflow. The design of this air passage allows the cooling air to circulate more effectively inside the transformer, forming a stable airflow from top to bottom, taking away heat, and effectively reducing the temperature of the winding and other key components. Such an airflow design not only improves the cooling efficiency, but also helps to reduce the formation of hot spots, ensuring that the transformer can maintain good performance and reliability even under continuous high-load working conditions.
[0039] In a possible implementation manner, the number of the air duct openings 11 is set to 9 groups, which are arranged in 3 rows and 3 columns, and each group is set to 8 air duct openings 11 arranged longitudinally.
[0040] In this embodiment, see Figure 4 , Figure 5 and Figure 6 The number and arrangement of the air duct openings 11 are carefully designed. By setting the openings to 9 groups, 3 rows and 3 columns, and 8 openings are arranged vertically in each group, such an arrangement is adapted to the requirement of nearly 100 outlet holes of the special transformer, solving the heat dissipation and outlet problems of the special transformer.
[0041] In a possible implementation, the phase-shifting rectifier transformer wind tube 4 is installed in conjunction with a special transformer.
[0042] This embodiment emphasizes the applicability of the invented air duct 4 for installation in conjunction with a special transformer. By optimizing the design of the air duct 4, it is not only suitable for conventional phase-shifting rectifier transformers, but can also be used in conjunction with special transformers, showing extremely high adaptability and flexibility. This design of coordinated installation takes into account the special structure and working conditions that may exist in special transformers. The special transformer has multiple sets of windings and is provided with nearly a hundred outlets, which are adapted to several air duct openings of the present application, ensuring that the air duct 4 can play the maximum heat dissipation and protection role in different application scenarios. Whether it is a transformer working in an extreme environment or a special application requiring higher insulation safety, this design can provide effective support to ensure that the transformer can operate safely and stably under various conditions. Through this flexibly adaptable air duct design, the present invention can meet the needs of different types of transformers, improve the efficiency and safety of the transformer, and also provide a broader space for the design and application of transformers.
[0043] The utility model of the wind tube of the phase-shifting rectifier transformer comprises an insulating tube 1, a comb-shaped support bar 2, a winding 3 and a coil outlet 10. The insulating tube 1 has good electrical performance and mechanical strength, and can ensure the safe and reliable operation of the transformer. The comb-shaped support bar 2 is bonded to the outer surface of the insulating tube to support the conductor and the pancake coil. The space between the teeth of the comb-shaped support bar provides an airway for the winding, which is beneficial to the heat dissipation of the winding. Figure 2, a 1mm thick H-class high temperature resistant insulation board is wrapped around the outer surface of the comb-shaped support bar, that is, the wind tube 4, and a wind duct is formed between the wind tube 4 and the insulation tube 1. Under the forced convection device, the wind passes through the wind duct. Figure 1 and 2 The wind path is upward and passes through the transformer windings. As shown by the arrows, there are air passages between the windings and the insulation tube, and between the windings and the wind tube. Under the action of forced air cooling, the heat generated by the windings can be quickly and effectively taken away, thereby achieving the purpose of reducing the temperature rise of the windings.
[0044] By designing a circular air duct outside the transformer coil, the transformer winding can be effectively wrapped in the air duct. With the help of the forced convection device, air can efficiently pass through the air duct, greatly improving the heat dissipation efficiency, thereby effectively reducing the temperature rise of the transformer.
[0045] Due to the special structure of the phase-shifting rectifier transformer, such as Figure 1 In the diagram, the three phases are A, B, and C from left to right. The exit positions of the coils are different, so three different air duct enclosures need to be designed. When the air duct is made, a small hole will be opened at the exit of each coil, that is, the air duct opening 11, so that the air duct can wrap the coil smoothly. After the lead wire passes through the air duct, high-temperature resistant glass glue is used to seal the small hole, which has a better sealing effect and is more conducive to the heat dissipation of the winding. Figure 3 At the seam of the wind tube, the inner and outer clamps 7 and 8 are used, and the bolts 9 can be used to lock the wind tube to prevent the wind tube from vibrating and making noise or falling off under the resistance of wind. Figure 4 , 5 In 6, the holes opened at the seam of the wind tube, namely, mounting hole I 12 and mounting hole II 13, are circular and oblong, respectively. The purpose of this is to adjust the circumference of the wind tube when the wind tube wraps around the coil, so that the wind tube can be wrapped more tightly.
[0046] See also Figure 4 ,5,6, wrap the processed wind tube on the coils A, B, and C phases after winding in sequence. During the wrapping process, each coil head 10 must pass through the wind tube opening 11. Use the inner and outer plywood 7 and 8 of the wind tube, and tighten the bolts 9 at the seams of the wind tube to tightly surround the outer surface of the coil. After the wind tube is tightly wrapped, use high-temperature resistant glass glue to seal the wind tube openings where the coil heads pass through.
[0047] The structure of the wind tube of the phase-shifting rectifier transformer of the utility model simplifies the structure of the wrapped wind duct surrounding tube, and only 1mm thick H-class high temperature resistant insulation board and a small amount of 3mm and 5mm thick insulation board are used. It is convenient to process and manufacture using engraving equipment, which saves a lot of man-hours and materials. The plywood 7 in the wind tube has an M10 internal thread, and the plywood can be fastened with only M10 bolts, which is easy to install and firm and reliable. High temperature resistant glass glue is used to seal the opening of the wind tube at the coil head, so that the air duct sealing effect is better, which is beneficial to the heat dissipation of the winding.
[0048] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0049] The above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present application can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present application, which should be included in the scope of the technical solution requested for protection in the present application.
Claims
1. A phase-shifting rectifier transformer wind tube, characterized in that: include: An insulating cylinder (1), a comb-shaped support bar (2), a winding (3), a coil outlet (10) and a wind tube (4), wherein the comb-shaped support bar (2) is bonded to the outer surface of the insulating cylinder (1), the winding (3) is wound on the comb-shaped support bar (2), the wind tube (4) is sleeved on the outer surface of the comb-shaped support bar (2), a plurality of wind tube openings (11) are arranged on the wind tube (4), the coil outlet (10) of the winding is connected through the wind tube opening (11), and the space between the coil outlet (10) and the wind tube opening (11) is filled with insulating glue; The wind tube (4) is surrounded by one or more insulating plates, and the inner clamping plate (7) and the outer clamping plate (8) are clamped on both sides of the joint of the insulating plates. The joints of the inner clamping plate (7), the outer clamping plate (8) and the insulating plates are connected by bolts (9); At the joint of the insulating plates, the mounting hole I (12) of the insulating plate on one side is circular, and the mounting hole II (13) of the insulating plate on the other side is oblong or elliptical.
2. The phase-shifting rectifier transformer wind tube according to claim 1 is characterized in that: The mounting holes of the inner clamping plate are threaded holes.
3. The phase-shifting rectifier transformer wind tube according to claim 2 is characterized in that: The air duct (4) is sleeved on the outer surface of the comb-shaped support bar (2) and fits closely with the outer surface of the comb-shaped support bar (2).
4. The phase-shifting rectifier transformer wind tube according to claim 3 is characterized in that: The air duct (4) is a 1 mm thick H-class high temperature resistant insulation board.
5. The phase-shifting rectifier transformer wind tube according to claim 4 is characterized in that: An air passage that passes through the winding (3) and the insulating cylinder (1) as well as the winding (3) and the wind cylinder (4) is formed vertically.
6. The phase-shifting rectifier transformer wind tube according to claim 5, characterized in that: The number of the air duct openings (11) is set to 9 groups, which are arranged in 3 rows and 3 columns, and each group is set to 8 air duct openings (11) arranged longitudinally.
7. The phase-shifting rectifier transformer wind tube according to claim 6, characterized in that: The wind tube of the phase-shifting rectifier transformer is installed in conjunction with the special transformer.