Low-loss power transformer
By adopting a design that combines triangular iron core frames and single-frame iron cores in power transformers, along with dustproof nets and cleaning mechanisms, the problems of high losses and low heat dissipation efficiency in power transformers are solved, achieving more efficient energy utilization and stable operation.
Patent Information
- Application Number
- CN202520284221.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-21
AI Technical Summary
Existing power transformers suffer from high energy loss and low heat dissipation efficiency during operation, especially due to increased energy loss caused by the blockage of traditional laminated cores and dust screens.
It adopts a design that combines triangular iron core frame and single-frame iron core, combined with dustproof net and cleaning mechanism. It uses heat dissipation components such as heat dissipation fins, heat pipes and fans for heat dissipation, and the dustproof net is cleaned regularly by the cleaning mechanism to optimize the magnetic circuit structure to reduce magnetic resistance and iron loss.
It effectively reduces the energy loss of the transformer, improves heat dissipation efficiency, prevents overheating and performance degradation caused by dust accumulation, and ensures the stable operation of the transformer.
Smart Images
Figure CN223927179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transformer technology, specifically to a low-loss power transformer. Background Technology
[0002] A transformer is a static electrical device used to transform AC voltage and current to transmit AC electrical energy.
[0003] However, existing transformers have the following technical problems in use: Existing power transformers use traditional laminated iron cores, which have relatively high internal energy losses, resulting in a lack of energy conservation. Furthermore, to prevent dust from entering the transformer, dust filters are typically installed. Over time, dust can clog these filters, reducing the transformer's heat dissipation efficiency and causing the internal temperature to rise, thus increasing losses during operation.
[0004] Therefore, providing a low-loss power transformer that improves heat dissipation and reduces energy loss during use is a problem that this invention urgently needs to solve. Utility Model Content
[0005] To address the aforementioned technical problems, the purpose of this utility model is to overcome the issues of high internal energy loss in the core and insufficient energy conservation in existing technologies. Furthermore, to prevent dust from entering the interior of power transformers, dust screens are typically installed. However, prolonged use can cause dust to clog these screens, reducing the transformer's heat dissipation efficiency and increasing losses during operation. Therefore, this utility model provides a low-loss power transformer that improves heat dissipation and reduces energy loss during use.
[0006] To achieve the above objectives, this utility model provides a low-loss power transformer, which includes: a triangular iron core frame fixedly disposed inside the transformer body, the iron core frame being formed by splicing multiple single-frame iron cores together, forming an iron core column at the splicing point, each iron core column being wound with a winding, and the outer surface of the transformer body being covered with a protective enclosure, the surface of the protective enclosure being provided with a dustproof net at a position corresponding to the winding, and the protective enclosure being provided with a cleaning mechanism for cleaning the dustproof net.
[0007] Preferably, the single-frame iron core is formed by stacking multiple iron core discs and has a stepped cross-section, with three single-frame iron cores forming a hollow cavity that is interconnected for winding.
[0008] Preferably, the cross-section of the iron core column is elliptical, and the surface is coated with a curing paint.
[0009] Preferably, the transformer body is further provided with a heat dissipation component for dissipating heat from the windings and reducing losses during operation.
[0010] Preferably, the heat sink includes: heat sink fins, heat pipes, and a fan; wherein,
[0011] Heat dissipation pipes for cooling are fixedly installed at positions corresponding to the single-frame iron core inside the transformer body. Heat dissipation fins for heat dissipation, corresponding to the heat dissipation pipes, are fixedly installed on the surface of the transformer body. A mounting plate is fixedly installed on the transformer body above the heat dissipation fins, and a fan corresponding to each heat dissipation fin is fixedly installed on the mounting plate.
[0012] Preferably, the cleaning mechanism includes: a limiting rod, a spring, and a cleaning plate; wherein,
[0013] The transformer body is fixedly provided with two sets of fixed plates that are far apart and parallel to each other. The fixed plates are connected by a number of parallel limit rods that are fixed at intervals. A cleaning plate that can move up and down to clean the surface of the dustproof net is slidably sleeved on the limit rod. A spring is sleeved on the limit rod and its two ends are fixedly connected to the side of the fixed plate and the bottom of the cleaning plate, respectively.
[0014] Preferably, the surface of the cleaning plate is fixedly provided with a cleaning brush head that contacts the surface of the dustproof net.
[0015] Preferably, a handle is fixedly provided on the side of the cleaning plate away from the dustproof net.
[0016] According to the above technical solution, the low-loss power transformer provided by this utility model has the following beneficial effects when in use: by using the design of splicing triangular iron core frame and multiple single-frame iron cores, the magnetic circuit structure can be optimized, reducing magnetic resistance and iron loss. The design of dustproof net and cleaning mechanism not only prevents dust from entering the transformer, but also ensures air circulation, which helps the transformer dissipate heat and prevents performance degradation or damage caused by overheating.
[0017] Other features and advantages of this utility model will be described in detail in the following detailed description section; and all parts not covered in this utility model are the same as or can be implemented using existing technology. Attached Figure Description
[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0019] Figure 1This is a three-dimensional structural diagram of a low-loss power transformer provided in a preferred embodiment;
[0020] Figure 2 This is a three-dimensional structural diagram of the transformer body of a low-loss power transformer provided in a preferred embodiment;
[0021] Figure 3 This is a three-dimensional structural diagram of a low-loss power transformer core frame provided in a preferred embodiment;
[0022] Figure 4 This is a three-dimensional structural diagram of a low-loss power transformer single-frame core provided in a preferred embodiment;
[0023] Figure 5 This is a three-dimensional structural diagram of a low-loss power transformer cleaning mechanism provided in a preferred embodiment;
[0024] Figure 6 This is a three-dimensional structural diagram of a low-loss power transformer heat sink provided in a preferred embodiment.
[0025] Explanation of reference numerals in the attached figures
[0026] 100. Transformer body; 101. Core frame; 1011. Core disc; 1012. Hollow cavity; 1013. Core column; 1014. Single-frame core; 102. Winding; 103. Mounting plate; 104. Heat dissipation fins; 105. Heat dissipation pipe; 106. Fan; 107. Protective enclosure; 108. Dustproof net; 200. Cleaning mechanism; 201. Fixing plate; 202. Limiting rod; 203. Spring; 204. Cleaning plate; 205. Cleaning brush head; 206. Pull handle. Detailed Implementation
[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0028] In this utility model, unless otherwise stated, directional words such as "upper," "lower," "inner," and "outer" included in the terminology only represent the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the term.
[0029] Reference Figures 1-6As shown, a low-loss power transformer includes: a triangular core frame 101 fixedly disposed within the transformer body 100; the core frame 101 is formed by splicing together multiple single-frame cores 1014, and core columns 1013 are formed at the splicing points; each core column 1013 is wound with a winding 102; and a protective enclosure 107 is provided on the outer surface of the transformer body 100; a dustproof net 108 is provided on the surface of the protective enclosure 107 at a position corresponding to the winding 102; and a cleaning mechanism 200 is provided on the protective enclosure 107 for cleaning the dustproof net 108.
[0030] In use, the assembled core frame 101 and its windings 102 are fixedly installed inside the transformer body 100. A protective enclosure 107 is placed on the outer surface of the transformer body 100 to protect the transformer from damage caused by the external environment. A dustproof net 108 is installed on the surface of the protective enclosure 107 at a position corresponding to the windings 102. The function of the dustproof net 108 is to prevent dust and other impurities from entering the transformer while ensuring air circulation. A cleaning mechanism 200 is installed on the protective enclosure 107 for periodically cleaning the dustproof net 108 to ensure the ventilation effect of the dustproof net 108 and the normal operation of the transformer. By using the splicing design of the triangular core frame 101 and multiple single-frame cores 1014, the magnetic circuit structure can be optimized, reducing magnetic resistance and iron loss. The design of the dustproof net 108 not only prevents dust from entering the transformer but also ensures air circulation, which helps the transformer dissipate heat and prevents performance degradation or damage caused by overheating.
[0031] Reference Figure 4 As shown, the single-frame iron core 1014 is formed by stacking multiple iron core discs 1011 and has a stepped cross-section. The three single-frame iron cores 1014 form a hollow cavity 1012 that is interconnected and used for winding the winding 102.
[0032] In the above scheme, the stepped core disc 1011 design makes the core column 1013 have a more uniform magnetic flux distribution in the cross-sectional direction, reducing magnetic resistance and iron loss. The hollow cavity 1012 design provides sufficient space for the winding of the winding 102, so that the winding 102 can fit more tightly on the core column 1013, improving the winding efficiency and the performance of the transformer.
[0033] Reference Figures 3-4 As shown, the cross-section of the iron core column 1013 is elliptical, and the surface is coated with a curing paint.
[0034] In the above scheme, a layer of curing paint is coated on the surface of the core column 1013. The selection of curing paint should meet the requirements of insulation, moisture-proof, and rust-proof. The elliptical cross-section design of the core column 1013 helps to reduce eddy current losses and improve the efficiency of the transformer. At the same time, the elliptical cross-section design makes the heat dissipation of the core column 1013 more uniform, which helps to reduce the temperature rise of the transformer and improve the operational stability.
[0035] Reference Figures 1-6 As shown, the transformer body 100 is also provided with a heat dissipation component for dissipating heat from the winding 102 and reducing losses during operation.
[0036] In the above scheme, a heat sink is installed on the transformer body 100 at a position corresponding to the winding 102 to ensure that there is sufficient heat exchange area between the heat sink and the winding 102 to improve heat dissipation efficiency. Through effective heat dissipation, the temperature of the winding 102 is reduced, the resistance loss and iron loss caused by high temperature are reduced, and the efficiency of the transformer is improved.
[0037] Reference Figure 6 As shown, the heat sink includes: heat sink fins 104, heat pipes 105, and a fan 106; wherein,
[0038] Heat dissipation pipes 105 for cooling are fixedly installed at positions corresponding to the single-frame iron core 1014 inside the transformer body 100. Heat dissipation fins 104 for heat dissipation, corresponding to the heat dissipation pipes 105, are fixedly installed on the surface of the transformer body 100. A mounting plate 103 is fixedly installed on the transformer body 100 above the heat dissipation fins 104. A fan 106 corresponding to each heat dissipation fin 104 is fixedly installed on the mounting plate 103.
[0039] In the above scheme, when the transformer is running, the heat generated by the winding 102 is transferred to the heat sink 105 through heat conduction, and the heat sink 105 then transfers the heat to the heat sink fins 104. At the same time, the fan 106 generates airflow, accelerating the dissipation of heat from the heat sink fins 104 into the air.
[0040] Reference Figure 5 As shown, the cleaning mechanism 200 includes: a limiting rod 202, a spring 203, and a cleaning plate 204; wherein,
[0041] The transformer body 100 is fixedly provided with two sets of fixed plates 201 that are far apart and parallel to each other. The fixed plates 201 are connected by a plurality of parallel and spaced limiting rods 202. A cleaning plate 204 that can move up and down to clean the surface of the dustproof net 108 is slidably sleeved on the limiting rod 202. A spring 203 is sleeved on the limiting rod 202 and its two ends are fixedly connected to the side of the fixed plate 201 and the bottom of the cleaning plate 204, respectively.
[0042] In the above scheme, when it is necessary to clean the dustproof net 108, manually pull the cleaning plate 204 upward to overcome the elastic force of the spring 203, and then release the cleaning plate 204. The elastic force of the spring 203 will cause the cleaning plate 204 to move downward and contact the dustproof net 108. The cleaning plate 204 is used to clean the dustproof net 108. The periodic up and down movement of the cleaning plate 204 can effectively clean the dust on the dustproof net 108 and maintain the cleanliness and ventilation effect of the dustproof net 108.
[0043] Reference Figure 5 As shown, the surface of the cleaning plate 204 is fixedly provided with a cleaning brush head 205 that contacts the surface of the dustproof net 108.
[0044] In the above scheme, when the transformer is running, dust will accumulate on the dustproof screen 108. The cleaning plate 204 is manually operated to move it up and down, and the cleaning brush head 205 is used to clean the dustproof screen 108 more effectively. The addition of the cleaning brush head 205 makes the cleaning process more detailed and thorough, and can more effectively remove dust and impurities on the dustproof screen 108, preventing the problem of increased internal temperature and performance degradation of the transformer caused by dust accumulation, and maintaining the stable performance of the transformer.
[0045] Reference Figure 5 As shown, a handle 206 is fixedly provided on the side of the cleaning plate 204 away from the dustproof net 108.
[0046] In the above solution, the addition of the handle 206 makes it more convenient and less labor-intensive to manually operate the cleaning plate 204, thus improving cleaning efficiency.
[0047] In summary, the low-loss power transformer provided by this utility model features an elliptical cross-section design for the core column 1013, which helps reduce eddy current losses and improve energy efficiency. The surface of the core column 1013 is coated with a curing varnish to enhance insulation and corrosion resistance. A heat dissipation pipe 105 is installed inside the transformer body 100 to absorb heat generated by the windings 102 and the core. Heat dissipation fins 104 are provided on the surface of the transformer body 100 to increase the heat dissipation area and accelerate heat dissipation. A fan 106 is fixed on the mounting plate 103 to further improve heat dissipation efficiency and reduce losses through forced convection. When the transformer is running, the windings 102 change shape through electromagnetic induction. When changing voltage, heat is generated. The heat dissipation system, consisting of heat pipe 105, heat dissipation fins 104, and fan 106, works together to dissipate the heat in a timely manner, keeping the transformer temperature within a safe range and reducing losses. When it is necessary to clean the dust filter 108, manually pull the cleaning plate 204 upward to overcome the elastic force of the spring 203, and then release the cleaning plate 204. The elastic force of the spring 203 will cause the cleaning plate 204 to move downward and contact the dust filter 108. The cleaning plate 204 is used to clean the dust filter 108. The periodic up and down movement of the cleaning plate 204 can effectively clean the dust on the dust filter 108, maintaining the cleanliness and ventilation of the dust filter 108.
[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0049] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0050] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A low-loss power transformer, characterized by The transformer comprises a triangular iron core frame (101) fixed in the transformer body (100), the iron core frame (101) is spliced with a plurality of single-frame iron cores (1014), and an iron core column (1013) is formed at the splicing position, a winding (102) is wound on each iron core column (1013), and the outer surface of the transformer body (100) is covered with a protective box (107), a dust screen (108) is arranged on the surface of the protective box (107) at a position corresponding to the winding (102), and a cleaning mechanism (200) is arranged on the protective box (107) for cleaning the dust screen (108).
2. A low-loss power transformer according to claim 1, characterized in that The single-frame iron core (1014) is formed by stacking a plurality of iron core cakes (1011) and has a stepped cross section, and a hollow cavity (1012) for winding the winding (102) is formed between the three single-frame iron cores (1014).
3. A low-loss power transformer according to claim 1, characterized in that The cross section of the iron core column (1013) is oval, and the surface is coated with a cured paint.
4. A low-loss electrical transformer according to claim 1, characterized in that The transformer body (100) is further provided with a heat dissipation member for dissipating heat of the winding (102) during operation to reduce loss.
5. A low-loss electrical transformer according to claim 4, characterised in that, The heat dissipation member comprises heat dissipation fins (104), heat dissipation pipes (105) and fans (106), wherein, The transformer body (100) is provided with heat dissipation pipes (105) for cooling at positions corresponding to the single-frame iron cores (1014), the surface of the transformer body (100) is provided with heat dissipation fins (104) for heat dissipation corresponding to the heat dissipation pipes (105), and the transformer body (100) is provided with a mounting plate (103) above the heat dissipation fins (104), and the mounting plate (103) is provided with fans (106) corresponding to the heat dissipation fins (104).
6. A low-loss electrical transformer according to claim 1, characterized in that The cleaning mechanism (200) comprises a limiting rod (202), a spring (203) and a cleaning plate (204), wherein, The transformer body (100) is provided with two groups of fixed plates (201) that are parallel and away from each other, the fixed plates (201) are connected by a plurality of limiting rods (202) arranged in parallel at intervals, the limiting rod (202) is slidably provided with a cleaning plate (204) that can move up and down to clean the surface of the dust screen (108), and the limiting rod (202) is provided with a spring (203) having one end fixedly connected to the side surface of the fixed plate (201) and the other end fixedly connected to the bottom surface of the cleaning plate (204).
7. A low-loss power transformer according to claim 6, characterized in that The surface of the cleaning plate (204) is fixedly provided with a cleaning brush head (205) in contact with the surface of the dust screen (108).
8. A low-loss power transformer according to claim 6, characterized in that A pull handle (206) is fixedly arranged on the side of the cleaning plate (204) away from the dust screen (108).