An energy-saving and environmentally friendly dry-type transformer

Abstract

The present invention relates to the technical field of transformers, and specifically to an energy-saving and environmentally friendly dry-type transformer, comprising a base, an inner coil, an outer coil, and a support frame, wherein the inner coil is disposed on the base, the outer coil is disposed outside the inner coil, and the support frame is used to support the inner and outer coils. The transformer further comprises a spacer, a cooling unit, and a first fan, wherein the spacer has an air outlet and is disposed between the inner coil and the outer coil to separate an upper cooling chamber and a lower cooling chamber. The first fan is disposed on the base so that air flows from the lower cooling chamber at the bottom into the air outlet, and the cooling unit is connected to the air outlet and to the upper cooling chamber. This encourages air flow to enter the lower cooling chamber at the bottom and be guided to the upper cooling chamber through the air outlet on the spacer. This ensures that heat can be quickly absorbed by the medium in the cooling chamber and then dissipated to the upper coil through the upper cooling chamber, thereby achieving the purpose of efficient cooling.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to an energy-saving and environmentally friendly dry-type transformer. Background Art

[0002] A dry-type transformer is an electrical device that doesn't require insulating oil. Instead, it uses air or another non-liquid cooling medium for heat dissipation and insulation. It typically utilizes solid insulating materials such as cast resin or epoxy resin. Compared to oil-immersed transformers, dry-type transformers offer greater safety and lower maintenance costs. They are suitable for locations with stringent fire and environmental requirements, such as commercial buildings, hospitals, and data centers.

[0003] The hardware structure of a dry-type transformer mainly includes the following key parts: the iron core is usually made of stacked silicon steel sheets, which is used to provide a magnetic circuit and reduce eddy current losses. The winding is the energy conversion part of the transformer, which is wound with wire (usually copper or aluminum) and is divided into primary winding and secondary winding. The primary winding is connected to the power supply, while the secondary winding is connected to the load. The insulation system of a dry-type transformer is one of the important features that distinguishes it from an oil-immersed transformer. The insulation material is usually in solid form, such as epoxy resin casting, glass fiber reinforced plastic (FRP), polyester film, etc. These materials not only provide good electrical insulation, but also provide certain mechanical protection and help dissipate heat.

[0004] The cooling method of dry-type transformers mainly relies on air circulation. The existing forced air cooling adopts the method of setting a fan at the bottom of the transformer to allow air to pass through the gap formed by the coil to dissipate heat.

[0005] However, the airflow flowing to the top in this way is often at a higher temperature, which affects the heat dissipation effect of the top and makes the top coil easily damaged when working in a high temperature environment for a long time. Summary of the Invention

[0006] The present invention aims to provide an energy-saving and environmentally friendly dry-type transformer, designed to encourage airflow to enter the lower cooling chamber at the bottom and be directed to the upper cooling chamber through air outlet holes in the spacers. The cooling section design further optimizes the air flow path to ensure that heat is quickly absorbed by the medium in the cooling chamber and then dissipated to the upper coil through the upper cooling chamber, achieving efficient cooling.

[0007] To achieve the above-mentioned objectives, the present invention provides an energy-saving and environmentally friendly dry-type transformer, comprising a base, an inner coil, an outer coil and a support frame, wherein the inner coil is arranged on the base, and the outer coil is arranged outside the inner coil. The support frame is used to support the inner coil and the outer coil, and further comprises a spacer, a cooling portion and a first fan, wherein the spacer has an air outlet, and the spacer is arranged between the inner coil and the outer coil to divide an upper cooling cavity and a lower cooling cavity. The first fan is arranged on the base so that the air flow enters the air outlet from the lower cooling cavity at the bottom, and the cooling portion is connected to the air outlet and to the upper cooling cavity.

[0008] Wherein, the spacer includes a spacer body and a positioning column, and the positioning column is fixed above the spacer body.

[0009] Wherein, the diaphragm further includes a sealing ring, which is fixedly connected to the diaphragm body and is located between the diaphragm body and the cooling part.

[0010] In which, the cooling part includes a cooling cavity, a pressure plate, a compression spring, a heat dissipation box and a circulation pump. The cooling cavity has an air inlet pipe, an exhaust pipe, a liquid inlet pipe and a liquid outlet pipe. The air inlet pipe is connected to the air outlet, the exhaust pipe is connected to the upper cooling cavity, the liquid inlet pipe is connected to the circulation pump, the heat dissipation box is connected to the circulation pump, and the liquid outlet pipe is connected to the heat dissipation box. The pressure plate presses the cooling cavity onto the spacer body through the compression spring.

[0011] Wherein, the cooling part further includes a second fan and an adjustment plate, the adjustment plate is rotatably arranged on the top of the outer coil, and the second fan is fixed to the adjustment plate.

[0012] The heat dissipation box has a plurality of heat dissipation fins, and the plurality of heat dissipation fins are distributed on the heat dissipation box.

[0013] Among them, the first fan includes a fan body, a connecting pipe and an air guide plate, the air guide plate has a plurality of air holes, the air guide plate is arranged at the bottom of the inner coil and the outer coil, the connecting pipe is connected to the air guide plate, and the fan body is connected to the connecting pipe.

[0014] Wherein, the first fan further includes a filter plate, and the filter plate is connected to the fan body and is located on one side of the fan body.

[0015] The present invention provides an energy-saving and environmentally friendly dry-type transformer. The inner coil is mounted directly on the base, while the outer coil surrounds the inner coil. The inner and outer coils serve as the high-voltage and low-voltage coils, respectively. The support frame secures and supports the inner and outer coils, ensuring they maintain a stable position during operation. Furthermore, the design incorporates key components: spacers. These spacers are equipped with air outlets and positioned between the inner and outer coils, effectively dividing the internal space into two cooling chambers: an upper cooling chamber and a lower cooling chamber. This design improves air flow efficiency and enhances heat dissipation. A first fan is also mounted on the base. Its operating principle is to force air into the lower cooling chamber at the bottom and direct it through the air outlets on the spacers to the upper cooling chamber. The cooling unit design further optimizes the air flow path. It is not only connected to the air outlets on the spacers but also communicates with the upper cooling chamber, ensuring that heat is quickly absorbed by the medium in the cooling chamber and then dissipated through the upper cooling chamber to the upper coil, achieving efficient cooling. This structural design not only improves the heat dissipation performance of the dry-type transformer and reduces energy loss, but also better meets modern environmental protection and energy-saving requirements, helps to extend the service life of the equipment and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a structural diagram of an energy-saving and environmentally friendly dry-type transformer of the present invention.

[0018] Figure 2 This is the right side structural diagram of an energy-saving and environmentally friendly dry-type transformer of the present invention.

[0019] Figure 3 This is a partial first cross-sectional structural diagram of an energy-saving and environmentally friendly dry-type transformer of the present invention.

[0020] Figure 4 yes Figure 3 A partial enlargement of detail A.

[0021] Figure 5 It is a cross-sectional structural diagram along the cooling part of an energy-saving and environmentally friendly dry-type transformer of the present invention.

[0022] Figure 6 It is a structural diagram of the temperature sensor, temperature calculation unit and control unit of the present invention.

[0023] Base 101, inner coil 102, outer coil 103, support frame 104, spacer 105, cooling part 106, first fan 107, spacer body 109, positioning column 110, sealing ring 111, cooling cavity 112, pressure plate 113, compression spring 114, heat sink 115, circulation pump 116, second fan 117, adjustment plate 118, heat sink 119, connecting pipe 121, air guide plate 122, filter plate 123, filter plate body 124, scraper 125, blade 126, temperature sensor 127, temperature calculation unit 128, control unit 129, air inlet pipe 130, exhaust pipe 131, liquid inlet pipe 132, liquid outlet pipe 133. DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0026] See also Figures 1 to 6 The present invention provides an energy-saving and environmentally friendly dry-type transformer, including a base 101, an inner coil 102, an outer coil 103 and a support frame 104, wherein the inner coil 102 is arranged on the base 101, and the outer coil 103 is arranged outside the inner coil 102, and the support frame 104 is used to support the inner coil 102 and the outer coil 103, and further includes a spacer 105, a cooling portion 106 and a first fan 107, wherein the spacer 105 has an air outlet, and the spacer 105 is arranged between the inner coil 102 and the outer coil 103 to divide the upper cooling cavity and the lower cooling cavity, and the first fan 107 is arranged on the base 101 so that the air flow enters the air outlet from the lower cooling cavity at the bottom, and the cooling portion 106 is connected to the air outlet and to the upper cooling cavity.

[0027] In this embodiment, an energy-saving and environmentally friendly dry-type transformer includes the following components: a base 101, an inner coil 102, an outer coil 103, and a support frame 104. The inner coil 102 is mounted directly on the base 101, while the outer coil 103 surrounds the inner coil 102. The inner coil 102 and outer coil 103 serve as the high-voltage coil and low-voltage coil, respectively. The support frame 104 secures and supports the inner and outer coils, ensuring they maintain a stable position during operation.

[0028] Furthermore, the design incorporates key components: spacers 105. These spacers 105 are equipped with air vents and are positioned between the inner coil 102 and the outer coil 103, effectively dividing the internal space into two cooling chambers: an upper cooling chamber and a lower cooling chamber. This design improves air flow efficiency and enhances heat dissipation.

[0029] A first fan 107 is also mounted on base 101. Its operating principle is to encourage airflow into the lower cooling chamber at the bottom and guide it to the upper cooling chamber through the air outlet holes on spacer 105. The design of cooling section 106 further optimizes the air flow path. It is not only connected to the air outlet holes on spacer 105, but also communicates with the upper cooling chamber, ensuring that heat is quickly absorbed by the medium in the cooling chamber and then dissipated to the upper coil through the upper cooling chamber, achieving the goal of efficient cooling. This structural design not only improves the heat dissipation performance of the dry-type transformer and reduces energy loss, but also better meets modern environmental protection and energy-saving requirements, helping to extend the equipment life and reduce maintenance costs.

[0030] The spacer 105 includes a spacer body 109 and a positioning post 110 . The positioning post 110 is fixed above the spacer body 109 .

[0031] The spacer 105 is composed of a spacer body 109 and a positioning post 110. The positioning post 110 is fixed above the spacer body 109 to accurately position the spacer 105 and ensure its stability inside the dry-type transformer.

[0032] The spacer 105 further includes a sealing ring 111 , which is fixedly connected to the spacer body 109 and is located between the spacer body 109 and the cooling portion 106 .

[0033] In addition, the diaphragm 105 further includes a sealing ring 111 , which is fixedly connected to the diaphragm body 109 and is located between the diaphragm body 109 and the cooling portion 106 to prevent air leakage and ensure the sealing of the system.

[0034] The cooling part 106 includes a cooling cavity 112, a pressure plate 113, a compression spring 114, a heat dissipation box 115 and a circulation pump 116. The cooling cavity 112 has an air inlet pipe, an exhaust pipe, a liquid inlet pipe and a liquid outlet pipe. The air inlet pipe is connected to the air outlet, the exhaust pipe is connected to the upper cooling cavity, the liquid inlet pipe is connected to the circulation pump 116, the heat dissipation box 115 is connected to the circulation pump 116, and the liquid outlet pipe is connected to the heat dissipation box 115. The pressure plate 113 presses the cooling cavity 112 onto the spacer body 109 through the compression spring 114.

[0035] The compression spring 114 can provide support for the pressure plate 113, so that the pressure plate 113 can press the cooling cavity 112 onto the spacer body 109, and then the high-temperature gas can be introduced into the lower cooling cavity through the air inlet pipe, and after being cooled by the cooling medium in the cooling cavity, it is discharged into the upper cooling cavity through the exhaust pipe. The circulating pump 116 can drive the cooling medium in the heat dissipation box 115 to circulate, so that the cooling effect is better.

[0036] The cooling unit 106 further includes a second fan 117 and an adjustment plate 118 . The adjustment plate 118 is rotatably disposed on the top of the outer coil, and the second fan 117 is fixed to the adjustment plate 118 .

[0037] The adjustment plate 118 is rotatably disposed on the top of the outer coil 103, and the second fan 117 is fixed on the adjustment plate 118, and the wind direction or wind volume can be adjusted as needed to achieve a more efficient cooling effect.

[0038] The heat dissipation box 115 has a plurality of heat dissipation fins 119 , and the plurality of heat dissipation fins 119 are distributed on the heat dissipation box 115 .

[0039] A plurality of heat sinks 119 are designed inside the heat sink 115 . These heat sinks 119 are evenly distributed throughout the heat sink 115 , which helps to improve heat dissipation efficiency.

[0040] The first fan 107 includes a fan body, a connecting pipe 121 and an air guide plate 122. The air guide plate 122 has multiple air holes. The air guide plate 122 is arranged at the bottom of the inner coil and the outer coil. The connecting pipe 121 is connected to the air guide plate 122, and the fan body is connected to the connecting pipe 121.

[0041] By providing the connecting pipe 121 , the airflow generated by the fan body can completely enter the air guide plate 122 and be evenly distributed to the lower cooling cavity through the multiple air holes provided on the air guide plate 122 , thereby achieving a better heat dissipation effect.

[0042] The first fan 107 further includes a filter plate 123 . The filter plate 123 is connected to the fan body and is located on one side of the fan body.

[0043] The filter plate 123 can filter impurities entering the fan body to prevent them from entering the coil and accumulating to affect the heat dissipation effect.

[0044] The filter plate 123 includes a filter plate body 124, a scraper 125 and a blade 126. The scraper 125 is rotatably connected to the filter plate body 124 and is located on one side of the filter plate body 124. The blade 126 is fixedly connected to the scraper 125 and is located on one side of the scraper 125.

[0045] When air flows in, the blade 126 drives the scraper 125 to rotate on one side of the filter plate body 124 to scrape off impurities on the filter plate body 124 to avoid blockage and make it more convenient to use.

[0046] The cooling unit 106 also includes a temperature sensor 127, a temperature calculation unit 128 and a control unit 129. The temperature sensor 127 is arranged between the inner coil 102 and the outer coil 103. The temperature calculation unit 128 is connected to the temperature sensor 127. The control unit 129 is connected to the temperature calculation unit 128 and the fan body.

[0047] To further enhance the system's intelligence and responsiveness, the cooling unit 106 also integrates a temperature sensor 127, a temperature calculation unit 128, and a control unit 129. The temperature sensor 127, located between the inner coil 102 and the outer coil 103, monitors temperature changes in real time. The temperature calculation unit 128, connected to the temperature sensor 127, processes the temperature data. The control unit 129, connected to the temperature calculation unit 128 and the fan body, automatically adjusts the fan's operating state based on the calculated temperature information to maintain optimal system operating conditions. This not only improves the system's cooling efficiency but also effectively reduces energy consumption, achieving energy conservation and environmental protection goals.

[0048] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An energy-saving and environmentally friendly dry-type transformer, comprising a base, an inner coil, an outer coil, and a support frame, wherein the inner coil is arranged on the base, the outer coil is arranged outside the inner coil, and the support frame is used to support the inner coil and the outer coil, characterized in that: The cooling fan further comprises a spacer, a cooling portion and a first fan, wherein the spacer has an air outlet, the spacer is arranged between the inner coil and the outer coil to divide the upper cooling cavity and the lower cooling cavity, the first fan is arranged on the base so that the air flows from the lower cooling cavity at the bottom into the air outlet, the cooling portion is communicated with the air outlet and is communicated with the upper cooling cavity; the spacer comprises a spacer body and a positioning column, the positioning column is fixed above the spacer body, the spacer further comprises a sealing ring, the sealing ring is fixed to the spacer body A fixed connection is provided between the diaphragm body and the cooling part, the cooling part comprising a cooling cavity, a pressure plate, a compression spring, a heat sink and a circulation pump, the cooling cavity having an air inlet pipe, an exhaust pipe, a liquid inlet pipe and a liquid outlet pipe, the air inlet pipe being connected to the air outlet, the exhaust pipe being connected to the upper cooling cavity, the liquid inlet pipe being connected to the circulation pump, the heat sink being connected to the circulation pump, the liquid outlet pipe being connected to the heat sink, and the pressure plate pressing the cooling cavity onto the diaphragm body through the compression spring.

2. The energy-saving and environmentally friendly dry-type transformer according to claim 1, characterized in that: The cooling unit further includes a second fan and an adjustment plate. The adjustment plate is rotatably arranged on the top of the outer coil, and the second fan is fixed to the adjustment plate.

3. The energy-saving and environmentally friendly dry-type transformer according to claim 2, characterized in that: The heat dissipation box has a plurality of heat dissipation fins, and the plurality of heat dissipation fins are distributed on the heat dissipation box.

4. The energy-saving and environmentally friendly dry-type transformer according to claim 3, characterized in that: The first fan includes a fan body, a connecting pipe and an air guide plate, the air guide plate has a plurality of air holes, the air guide plate is arranged at the bottom of the inner coil and the outer coil, the connecting pipe is connected to the air guide plate, and the fan body is connected to the connecting pipe.

5. The energy-saving and environmentally friendly dry-type transformer according to claim 4, characterized in that: The first fan further includes a filter plate, which is connected to the fan body and located on one side of the fan body.

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