Intelligent energy-saving transformer

Abstract

The invention relates to the technical field of transformers, and provides an intelligent energy-saving transformer which comprises heat dissipation equipment which comprises an inner heat dissipation cylinder arranged between a primary winding and an E-shaped silicon steel sheet, a middle-layer heat dissipation cylinder arranged between the primary winding and a secondary winding and an outer heat dissipation cylinder arranged outside the secondary winding. The transformer oil in the oil tank is conveyed into the circulating grooves in the inner heat dissipation cylinder, the middle heat dissipation cylinder and the outer heat dissipation cylinder through the oil pump, the inner heat dissipation cylinder, the middle heat dissipation cylinder and the outer heat dissipation cylinder conduct heat on the iron core body, the primary winding and the secondary winding, the transformer oil absorbs heat, and heat dissipation is conducted through the heat dissipation fins outside the oil tank; according to the transformer, centralized heat dissipation of the interior of the transformer is achieved, transformer oil does not make direct contact with the iron core body, the primary winding and the secondary winding, the leakage risk is greatly reduced, meanwhile, the weight of the transformer is reduced, the heat dissipation effect is good, and meanwhile safety is high and maintenance cost is low.

Description

Technical Field

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

[0002] A transformer is an electrical device that uses the principle of electromagnetic induction to change AC voltage. Its basic structure is mainly composed of an iron core and windings. In the power generation process, the transformer is used to increase the lower voltage output by the generator to a high voltage suitable for long-distance transmission to reduce line losses. In the transmission process, the transformer is installed in the substation to step down the high voltage step by step so that the electrical energy can be transmitted to distribution networks of different voltage levels. At the power consumption terminal, such as factories, commercial buildings and residential areas, the distribution transformer further reduces the voltage to a voltage level suitable for various electrical equipment.

[0003] At present, transformers can be divided into three types according to their heat dissipation methods: oil-immersed transformers, dry-type transformers and water-cooled transformers; oil-immersed transformers have better heat dissipation effect and can meet the heat dissipation needs of larger capacity transformers, but they have greater safety hazards. When the temperature is too high or leakage occurs, it is easy to cause fire and pollute the environment; dry-type transformers are usually equipped with cooling fans for forced heat dissipation, which have the advantages of fire prevention, explosion prevention, and pollution-free, but their heat dissipation effect is poor; water-cooled transformers have high heat dissipation efficiency and can meet the heat dissipation needs of large-capacity and high-power transformers, but the cooling system is relatively complex and requires special water treatment equipment and piping systems, and the maintenance cost is high.

[0004] Therefore, there is an urgent need to design an energy-saving transformer with good heat dissipation effect, high safety and low maintenance cost. Summary of the invention

[0005] The present invention provides an intelligent energy-saving transformer, which solves the problem of an intelligent energy-saving transformer in which three existing transformers in the background technology all have significant defects.

[0006] The technical solution of the present invention is as follows: an intelligent energy-saving transformer, comprising a box body and an iron core body arranged inside the box body, and also comprising a primary winding and a secondary winding arranged on the iron core body, the iron core body comprising an E-shaped silicon steel sheet and an I-shaped silicon steel sheet arranged on the E-shaped silicon steel sheet, insulating pads are respectively arranged on the upper and lower sides of the outer side of the iron core body, the primary winding and the secondary winding are respectively arranged in three groups, the primary winding and the secondary winding are sleeved on the outside of the E-shaped silicon steel sheet, and the primary winding is located on the inner side of the secondary winding, and a heat dissipation device is also arranged on the outer side of the iron core body, the heat dissipation device comprises an inner heat dissipation tube arranged between the primary winding and the E-shaped silicon steel sheet, a middle heat dissipation tube arranged between the primary winding and the secondary winding, and an outer heat dissipation tube arranged outside the secondary winding, and the inner heat dissipation tube, the middle heat dissipation tube and the outer heat dissipation tube are all provided with flow grooves inside, and the flow grooves are arc-shaped and penetrate the inner and outer heat dissipation tubes up and down. The heat dissipation tube, the middle heat dissipation tube and the outer heat dissipation tube, the inner heat dissipation tube and the middle heat dissipation tube are provided with a first connecting tube, the middle heat dissipation tube and the outer heat dissipation tube are provided with a second connecting tube, a liquid inlet pipe is installed below the inner heat dissipation tube, and a liquid outlet pipe is installed above the outer heat dissipation tube, an oil tank is provided at the bottom of the box body, the oil tank is filled with transformer oil, an oil pump is provided inside the oil tank, and the oil pump is connected to the other end of the liquid inlet pipe, and the other end of the liquid outlet pipe extends to the inside of the oil tank; when the transformer is working, a large amount of heat will be generated between the iron core body, the primary winding and the secondary winding, by arranging the inner heat dissipation tube outside the iron core body, the middle heat dissipation tube between the primary winding and the secondary winding, and the outer heat dissipation tube outside the secondary winding, the transformer oil enters the inner heat dissipation tube through the liquid inlet pipe under the action of the oil pump, then flows into the middle heat dissipation tube and the outer heat dissipation tube, and finally flows back through the liquid outlet pipe to absorb heat for cooling.

[0007] Furthermore, an upwardly penetrating mounting groove is provided inside the box body, and the mounting groove is used to accommodate the iron core body, the primary winding, the secondary winding and the heat dissipation device. Bases are installed on both sides of the bottom of the box body, and cooling fins are evenly distributed on the front and back surfaces of the box body and around the oil tank. The cooling fins are used for auxiliary heat dissipation to the outside. An upper cover plate is provided on the top of the box body, and a high-pressure pipe sleeve and a low-pressure pipe sleeve are provided on the top of the upper cover plate.

[0008] Furthermore, the top and bottom of the primary winding and the secondary winding are in contact with the inner side of the insulating pad, the insulating pad is used to position the primary winding and the secondary winding, and the inner side of the insulating pad is evenly distributed with grooves corresponding to the first connecting tube and the second connecting tube.

[0009] Furthermore, the E-shaped silicon steel sheet and the I-shaped silicon steel sheet are components composed of multiple layers of overlapping silicon steel sheets, and the inner heat dissipation tube, the middle heat dissipation tube and the outer heat dissipation tube are components made of aluminum nitride ceramics. Aluminum nitride has a very high thermal conductivity, and at the same time, it has good insulation performance and high resistivity. It is set in the core body, primary winding and secondary winding for both heat conduction and insulation.

[0010] Furthermore, the inner heat dissipation tube, the middle heat dissipation tube and the outer heat dissipation tube are evenly provided with interlocking parts at the top and the bottom, the first connecting tube is installed on the interlocking parts at the top of the inner heat dissipation tube and the middle heat dissipation tube, and the second connecting tube is installed on the interlocking parts at the bottom of the middle heat dissipation tube and the outer heat dissipation tube. Through the first connecting tube and the second connecting tube, a passage is formed between the inner heat dissipation tube, the middle heat dissipation tube and the outer heat dissipation tube, and a closed heat conduction channel is formed between the liquid inlet pipe, the oil tank and the liquid outlet pipe.

[0011] Furthermore, a heat dissipation duct is provided inside the box, and heat dissipation fans are installed on both sides of the outside of the box. The heat dissipation fan and the heat dissipation duct are used to dissipate the heat of the heat transfer oil in the heat dissipation device.

[0012] Furthermore, the heat dissipation duct includes an isolation plate arranged inside the box body, the isolation plate is in a runway shape, and the heat dissipation duct also includes an air intake channel arranged in front and behind the box body, the air intake channel is connected to the outside of the box body, and a filter is installed inside the air intake channel outside the box body.

[0013] Furthermore, four groups of air intake channels are provided, and the air intake channels are close to two adjacent groups of heat dissipation devices.

[0014] Furthermore, air guide covers are installed on both sides of the exterior of the box body, the heat dissipation fan is embedded and installed inside the air guide covers, and the air guide covers are communicated with the interior of the heat conduction tube.

[0015] Furthermore, an isolation plate is fixedly installed at the intersection of the mounting groove and the heat dissipation channel inside the box body, and the isolation plate is provided with two groups, an upper and a lower group, and three groups of heat-conducting tubes are installed between the two groups of isolation plates, and the three groups of heat-conducting tubes are located outside the three groups of outer heat-dissipating tubes and fit with the outer wall of the outer heat-dissipating tubes, and the isolation plate and the heat-conducting tube divide the mounting groove and the heat-dissipating channel into two independent spaces to prevent dust from entering the interior of the mounting groove; by starting the heat dissipation fan, the heat dissipation fan generates negative pressure inside the heat dissipation channel through the air guide cover, and the air enters the interior of the heat dissipation channel after being filtered by the filter. Since the heat-conducting tube is fit with the outer heat-dissipating tube, the air enters and then cools the transformer oil through the heat-conducting tube and the outer heat-dissipating tube. When the temperature inside the transformer is not high, the heat dissipation fan will not be started, and passive heat dissipation will be carried out by relying on heat conduction of the transformer oil and through the heat dissipation fins outside the box body and the oil tank. When the temperature inside the transformer is high, the heat dissipation fan will be started to quickly dissipate heat under the circulation of the transformer oil and the heat dissipation of the heat dissipation duct.

[0016] The working principle and beneficial effects of the present invention are: During operation of the transformer of the present invention, the oil pump inside the oil tank is started, and the oil pump transports the transformer oil inside the oil tank to the flow groove inside the inner heat dissipation cylinder through the liquid inlet pipe. Subsequently, under the action of the first connecting pipe, the transformer oil enters the flow groove inside the middle heat dissipation cylinder, and under the action of the second connecting pipe, enters the flow groove inside the outer heat dissipation cylinder, and finally flows back to the inside of the oil tank through the liquid outlet pipe. During the circulation of the transformer oil, the transformer oil absorbs heat through the heat conduction of the inner heat dissipation cylinder, the primary winding and the secondary winding by the inner heat dissipation cylinder, the middle heat dissipation cylinder and the outer heat dissipation cylinder, and dissipates heat through the heat dissipation fins outside the oil tank, thereby realizing centralized heat dissipation inside the transformer. The transformer oil does not directly contact the iron core body, the primary winding and the secondary winding, thereby greatly reducing the risk of leakage and reducing the weight of the transformer. The heat dissipation effect is good, the safety is high, and the maintenance cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a disassembled diagram of the overall structure of the present invention; Figure 3 It is a partial structural split diagram of the present invention; Figure 4 It is a schematic diagram of the box body and the cooling fan structure of the present invention; Figure 5 It is a cross-sectional view of the box body and the heat dissipation fan structure of the present invention; Figure 6 It is a schematic diagram of the structure of the core body and the heat dissipation device of the present invention; Figure 7 It is a schematic diagram of the structure of the core body and the heat dissipation device of the present invention; Figure 8 It is a schematic diagram of the structure of the primary winding, secondary winding and heat dissipation device of the present invention; Fig. 9 An exploded diagram of the heat dissipation device structure of the present invention; Fig.10 This is a cross-sectional view of the flow channel structure of the present invention.

[0019] In the figure: 1. box body; 11. installation groove; 12. isolation plate; 13. heat-conducting tube; 14. deflector; 15. heat dissipation channel; 16. air intake channel; 17. filter; 18. base; 19. heat dissipation fin; 2. core body; 21. E-shaped silicon steel sheet; 22. I-shaped silicon steel sheet; 23. insulation pad; 3. oil tank; 4. primary winding; 5. secondary winding; 6. heat dissipation device; 61. inner heat dissipation tube; 62. middle heat dissipation tube; 63. outer heat dissipation tube; 64. circulation groove; 65. fitting part; 66. first connecting pipe; 67. second connecting pipe; 68. liquid inlet pipe; 69. liquid outlet pipe; 7. cooling fan; 8. upper sealing plate. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1 like Figure 1-Figure 10As shown, this embodiment proposes an intelligent energy-saving transformer, including a box body 1 and an iron core body 2 arranged inside the box body 1, and also including a primary winding 4 and a secondary winding 5 arranged on the iron core body 2. The iron core body 2 includes an E-shaped silicon steel sheet 21 and an I-shaped silicon steel sheet 22 arranged on the E-shaped silicon steel sheet 21. Insulating pads 23 are respectively arranged on the upper and lower outer sides of the iron core body 2. The primary winding 4 and the secondary winding 5 are respectively provided with three groups, and the primary winding 4 and the secondary winding 5 are sleeved on the outside of the E-shaped silicon steel sheet 21. The primary winding 4 is located on the inner side of the secondary winding 5, and a heat dissipation device 6 is also arranged on the outer side of the core body 2. The heat dissipation device 6 includes an inner heat dissipation tube 61 arranged between the primary winding 4 and the E-shaped silicon steel sheet 21, a middle heat dissipation tube 62 arranged between the primary winding 4 and the secondary winding 5, and an outer heat dissipation tube 63 arranged outside the secondary winding 5. The inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63 are all provided with a flow groove 64 inside, and the flow groove 64 is arc-shaped and passes through the inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63 up and down. The heat tube 62 and the outer heat tube 63, the inner heat tube 61 and the middle heat tube 62 are provided with a first connecting pipe 66, a second connecting pipe 67 is provided between the middle heat tube 62 and the outer heat tube 63, a liquid inlet pipe 68 is installed below the inner heat tube 61, and a liquid outlet pipe 69 is installed above the outer heat tube 63. The bottom of the box body 1 is provided with an oil tank 3, the oil tank 3 is filled with transformer oil, and the oil tank 3 is provided with an oil pump, and the oil pump is connected to the other end of the liquid inlet pipe 68, and the other end of the liquid outlet pipe 69 extends to the oil tank 3. When the transformer is working, a large amount of heat is generated between the core body 2, the primary winding 4 and the secondary winding 5. By arranging an inner heat dissipation tube 61 outside the core body 2, a middle heat dissipation tube 62 between the primary winding 4 and the secondary winding 5, and an outer heat dissipation tube 63 outside the secondary winding 5, the transformer oil enters the inner heat dissipation tube 61 through the liquid inlet pipe 68 under the action of the oil pump, and then flows into the middle heat dissipation tube 62 and the outer heat dissipation tube 63, and finally flows back through the liquid outlet pipe 69 to absorb heat for cooling.

[0022] like Figure 2 As shown, the interior of the box body 1 is provided with an upwardly penetrating mounting groove 11, the mounting groove 11 is used to accommodate the core body 2, the primary winding 4, the secondary winding 5 and the heat dissipation device 6, bases 18 are installed on both sides of the bottom of the box body 1, and cooling fins 19 are evenly distributed on the front and back surfaces of the box body 1 and around the oil tank 3, and the cooling fins 19 are used for auxiliary heat dissipation to the outside, and an upper sealing plate 8 is provided on the top of the box body 1, and a high-pressure pipe sleeve and a low-pressure pipe sleeve are provided on the top of the upper sealing plate 8.

[0023] like Figure 6-Figure 7As shown, the top and bottom of the primary winding 4 and the secondary winding 5 are in contact with the inner side of the insulating pad 23, the insulating pad 23 is used to position the primary winding 4 and the secondary winding 5, and the inner side of the insulating pad 23 is evenly distributed with grooves corresponding to the first connecting tube 66 and the second connecting tube 67. The E-shaped silicon steel sheet 21 and the I-shaped silicon steel sheet 22 are components composed of multiple layers of overlapping silicon steel sheets. The inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63 are components made of aluminum nitride ceramics. Aluminum nitride has a very high thermal conductivity, and at the same time, it has good insulation performance and high resistivity. It is set in the core body 2, the primary winding 4 and the secondary winding 5, which can be used for heat conduction and also play an insulating role.

[0024] like Fig. 9 As shown, the inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63 are evenly provided with interlocking parts 65 at the top, the first connecting tube 66 is installed on the interlocking parts 65 at the top of the inner heat dissipation tube 61 and the middle heat dissipation tube 62, and the second connecting tube 67 is installed on the interlocking parts 65 at the bottom of the middle heat dissipation tube 62 and the outer heat dissipation tube 63. Through the first connecting tube 66 and the second connecting tube 67, a passage is formed between the inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63, and a closed heat conduction flow channel is formed between the liquid inlet pipe 68, the oil tank 3 and the liquid outlet pipe 69.

[0025] In this embodiment, during the operation of the transformer, the oil pump inside the oil tank 3 is started, and the oil pump transports the transformer oil inside the oil tank 3 to the flow groove 64 inside the inner heat dissipation tube 61 through the liquid inlet pipe 68. Subsequently, under the action of the first connecting pipe 66, the transformer oil enters the flow groove 64 inside the middle heat dissipation tube 62, and enters the flow groove 64 inside the outer heat dissipation tube 63 under the action of the second connecting pipe 67, and finally flows back to the inside of the oil tank 3 through the liquid outlet pipe 69. During the circulation of the transformer oil, the transformer oil absorbs heat through the heat conduction of the inner heat dissipation tube 61, the middle heat dissipation tube 62 and the outer heat dissipation tube 63 to the core body 2, the primary winding 4 and the secondary winding 5, and dissipates heat through the heat dissipation fins 19 outside the oil tank 3. At the same time, part of the heat inside the box body 1 is also dissipated through the heat dissipation fins 19 outside the box body 1.

[0026] Example 2 like Figure 4-Figure 5As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a heat dissipation duct arranged inside the box body 1, and a heat dissipation fan 7 arranged on both sides of the outside of the box body 1, the heat dissipation fan 7 and the heat dissipation duct are used to dissipate heat from the heat transfer oil in the heat dissipation device 6, the heat dissipation duct includes an isolation plate 12 arranged inside the box body 1, the isolation plate 12 is in the shape of a runway, the heat dissipation duct also includes an air intake channel 16 arranged in front and behind the box body 1, the air intake channel 16 is connected to the outside of the box body 1, a filter 17 is installed on the outside of the box body 1, the air intake channel 16 is provided with four groups, and the air intake channel 16 is close to two adjacent groups of heat dissipation devices 6, a guide cover 14 is installed on both sides of the outside of the box body 1, the heat dissipation fan 7 is embedded in the inside of the guide cover 14, and the guide cover 14 is connected to the inside of the heat conduction tube 13.

[0027] An isolation plate 12 is fixedly installed at the intersection of the mounting groove 11 and the heat dissipation channel 15 inside the box body 1. The isolation plate 12 is provided with two groups, upper and lower. Three groups of heat-conducting tubes 13 are installed between the two groups of isolation plates 12. The three groups of heat-conducting tubes 13 are located outside the three groups of external heat dissipation tubes 63 and fit the outer wall of the external heat dissipation tubes 63. The isolation plate 12 and the heat-conducting tubes 13 divide the mounting groove 11 and the heat dissipation channel 15 into two independent spaces to prevent dust from entering the interior of the mounting groove 11. By starting the heat dissipation fan 7, the heat dissipation fan 7 makes the heat dissipation channel 15 cool through the air guide cover 14. Negative pressure is generated inside, and the air enters the heat dissipation channel 15 after being filtered by the filter 17. Since the heat-conducting tube 13 is attached to the external heat-dissipating tube 63, the air enters and then cools the transformer oil through the heat-conducting tube 13 and the external heat-dissipating tube 63. When the temperature inside the transformer is not high, the cooling fan 7 is not started, and the transformer oil is relied on for heat conduction and passive heat dissipation is performed through the heat dissipation fins 19 outside the box body 1 and the oil tank 3. When the temperature inside the transformer is high, the cooling fan 7 is started to quickly dissipate heat under the circulation of the transformer oil and the heat dissipation of the heat dissipation duct.

[0028] In this embodiment, when the temperature of the transformer oil is too high, its heat dissipation capacity for the transformer becomes poor, resulting in excessive heat inside the transformer. By starting the heat dissipation fan 7, a negative pressure is generated inside the heat dissipation channel 15 under the action of the heat dissipation fan 7 sucking air, and the air enters the heat dissipation channel 15 after being filtered by the filter 17. At this time, since the heat-conducting tube 13 is attached to the outer side of the outer heat dissipation tube 63, the heat of the transformer oil inside it is dissipated through the heat conduction of the heat-conducting tube 13 and the air flow inside the heat dissipation channel 15. The four groups of air inlet channels 16 cooperate with the two groups of heat dissipation fans 7 to dissipate the transformer oil inside the three groups of heat dissipation devices 6, and the heat dissipation is uniform. At the same time, under the action of the isolation plate 12 and the heat-conducting tube 13 separating the installation groove 11 and the heat dissipation channel 15, the two spaces are independent, dust and moisture are prevented from entering the installation groove 11, and the normal operation of the transformer is not affected. Two heat dissipation methods are provided, the heat dissipation effect is good, and the degree of intelligence is high.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent energy-saving transformer, comprising a box (1) and an iron core body (2) arranged inside the box (1), and also comprising a primary winding (4) and a secondary winding (5) arranged on the iron core body (2), characterized in that: The core body (2) comprises an E-shaped silicon steel sheet (21) and an I-shaped silicon steel sheet (22) arranged on the E-shaped silicon steel sheet (21); insulating pads (23) are respectively arranged on the upper and lower sides of the outer side of the core body (2); the primary winding (4) and the secondary winding (5) are respectively arranged in three groups; the primary winding (4) and the secondary winding (5) are respectively arranged on the outer side of the E-shaped silicon steel sheet (21), and the primary winding (4) is located on the inner side of the secondary winding (5); a heat dissipation device (6) is also arranged on the outer side of the core body (2); the heat dissipation device (6) comprises an inner heat dissipation tube (61) arranged between the primary winding (4) and the E-shaped silicon steel sheet (21), a middle heat dissipation tube (62) arranged between the primary winding (4) and the secondary winding (5), and an outer heat dissipation tube (63) arranged outside the secondary winding (5); the inner heat dissipation tube ( 61), the middle heat dissipation tube (62) and the outer heat dissipation tube (63) are all provided with a circulation groove (64), and the circulation groove (64) is arc-shaped and passes through the inner heat dissipation tube (61), the middle heat dissipation tube (62) and the outer heat dissipation tube (63) from top to bottom. The inner heat dissipation tube (61) and the middle heat dissipation tube (62) are provided with a first connecting pipe (66), and a second connecting pipe (67) is provided between the middle heat dissipation tube (62) and the outer heat dissipation tube (63). A liquid inlet pipe (68) is installed below the inner heat dissipation tube (61), and a liquid outlet pipe (69) is installed above the outer heat dissipation tube (63). An oil tank (3) is provided at the bottom of the box body (1), and transformer oil is contained in the oil tank (3). An oil pump is provided inside the oil tank (3), and the oil pump is connected to the other end of the liquid inlet pipe (68), and the other end of the liquid outlet pipe (69) extends to the inside of the oil tank (3).

2. The intelligent energy-saving transformer according to claim 1, characterized in that The box body (1) is provided with an upwardly penetrating mounting groove (11) inside, the mounting groove (11) is used to accommodate the core body (2), the primary winding (4), the secondary winding (5) and the heat dissipation device (6), the bottom sides of the box body (1) are provided with bases (18), the front and rear sides of the box body (1) and the surrounding of the oil tank (3) are evenly distributed with heat dissipation fins (19), the heat dissipation fins (19) are used to assist in external heat dissipation, the top of the box body (1) is provided with an upper sealing plate (8), and the top of the upper sealing plate (8) is provided with a high-pressure pipe sleeve and a low-pressure pipe sleeve.

3. The intelligent energy-saving transformer according to claim 1, characterized in that The top and bottom of the primary winding (4) and the secondary winding (5) are in contact with the inner side of the insulating pad (23), the insulating pad (23) is used to position the primary winding (4) and the secondary winding (5), and the inner side of the insulating pad (23) is evenly distributed with grooves corresponding to the first connecting tube (66) and the second connecting tube (67).

4. The intelligent energy-saving transformer according to claim 1, characterized in that The E-shaped silicon steel sheet (21) and the I-shaped silicon steel sheet (22) are components composed of multiple layers of overlapping silicon steel sheets, and the inner heat dissipation tube (61), the middle heat dissipation tube (62) and the outer heat dissipation tube (63) are components made of aluminum nitride ceramics.

5. The intelligent energy-saving transformer according to claim 1, characterized in that The inner heat dissipation tube (61), the middle heat dissipation tube (62) and the outer heat dissipation tube (63) are evenly provided with interlocking portions (65) at the top and bottom, the first connecting tube (66) is installed on the interlocking portions (65) at the top of the inner heat dissipation tube (61) and the middle heat dissipation tube (62), and the second connecting tube (67) is installed on the interlocking portions (65) at the bottom of the middle heat dissipation tube (62) and the outer heat dissipation tube (63).

6. The intelligent energy-saving transformer according to claim 1, characterized in that The box body (1) is also provided with a heat dissipation duct inside, and heat dissipation fans (7) are installed on both sides of the outside of the box body (1). The heat dissipation fans (7) and the heat dissipation duct are used to dissipate heat from the heat transfer oil in the heat dissipation device (6).

7. The intelligent energy-saving transformer according to claim 6, characterized in that The heat dissipation duct comprises an isolation plate (12) arranged inside the box (1), the isolation plate (12) being in the shape of a runway, the heat dissipation duct further comprises an air inlet channel (16) arranged at the front and rear of the box (1), the air inlet channel (16) being in communication with the outside of the box (1), and a filter (17) being installed inside the air inlet channel (16) outside the box (1).

8. The intelligent energy-saving transformer according to claim 7, characterized in that The air intake channels (16) are provided in four groups, and the air intake channels (16) are close to two adjacent groups of heat dissipation devices (6).

9. The intelligent energy-saving transformer according to claim 8, characterized in that Air guide covers (14) are installed on both sides of the exterior of the box body (1), the heat dissipation fan (7) is embedded in the interior of the air guide covers (14), and the air guide covers (14) are connected to the interior of the heat conduction tube (13).

10. The intelligent energy-saving transformer according to claim 9, characterized in that An isolation plate (12) is fixedly installed inside the box body (1) at the intersection of the installation groove (11) and the heat dissipation channel (15). The isolation plate (12) is provided with two groups, an upper group and an lower group. Three groups of heat-conducting tubes (13) are installed between the two groups of isolation plates (12). The three groups of heat-conducting tubes (13) are located outside the three groups of external heat dissipating tubes (63) and are in contact with the outer wall of the external heat dissipating tubes (63). The isolation plate (12) and the heat-conducting tubes (13) divide the installation groove (11) and the heat dissipating channel (15) into two independent spaces to prevent dust from entering the interior of the installation groove (11).

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