High-impedance single-phase transformer

Abstract

The utility model belongs to the technical field of transformers, and particularly relates to a high-impedance single-phase transformer which comprises a shell, a heat absorbing plate is fixedly connected to the inner wall of the shell, heat can be generated when the high-impedance single-phase transformer works in the shell by arranging a heat dissipation plate and a heat dissipation copper pipe, and the heat in the shell is conducted into the heat absorbing plate; heat in the heat absorption plate is conducted to the outside of the shell through the heat dissipation plate, passive air cooling heat dissipation operation on the shell is achieved, when the temperature in the shell is too high, the heat in the heat absorption plate is conducted to the cooling medium in the heat absorption copper pipe, the cooling medium in the heat absorption copper pipe is heated, and the pump machine works. The cooling medium in the heat absorption copper pipe is injected into the heat dissipation copper pipe through the leading-out pipe, then the cooling fan works, heat of the cooling medium in the heat dissipation copper pipe is conducted to the outside of the shell, the cooled cooling medium enters the heat absorption copper pipe again through the leading-in pipe, cooling and heat dissipation operation of circulating oil in the shell is achieved, and the service life of the transformer is greatly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of transformers, and in particular relates to a high-impedance single-phase transformer. Background Art

[0002] A transformer is a device that transforms AC voltage, current and impedance. When AC current flows through the primary coil, AC magnetic flux is generated in the iron core, inducing voltage in the secondary coil. The transformer consists of an iron core and a coil. The coil has two or more windings, of which the winding connected to the power supply is called the primary coil, and the remaining windings are called the secondary coil. In a generator, whether the coil moves through the magnetic field or the magnetic field moves through the fixed coil, an electric potential can be induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the amount of magnetic flux interlinked with the coil changes. This is the principle of mutual induction. A transformer is a device that uses the electromagnetic mutual induction effect to transform voltage, current and impedance. At the same time, there are various types of transformers, including single-phase transformers. The impedance of the transformer is proportional to the degree of mutual coupling between two or more independent windings.

[0003] For example, the patent with publication number CN217902835U discloses a single-phase transformer, including a single-phase transformer body, a hanging ring and a heat dissipation frame, the top surface of the single-phase transformer body is welded and fixed with a hanging ring, and the outer surface of the single-phase transformer body is provided with a heat dissipation frame, the center of the outer surface of the single-phase transformer body is provided with a fixing frame, and the bottom surface of the fixing frame is provided with a positioning convex block, a straight plate is installed through the fixing frame, and the outer surface of the straight plate is provided with a fixing plate, and a through hole is opened on the fixing plate, a connecting strip is installed on the surface of the straight plate, and a sealing strip is provided on the top surface of the connecting strip, and the sealing strip is located below the heat dissipation frame. In the single-phase transformer, the sealing strip can slide into the heat dissipation frame for snap connection by driving the sealing strip to rise through the connecting strip, so that the heat dissipation frame can be properly sealed, thereby facilitating the long-term storage of the single-phase transformer body as a whole and preventing foreign impurities from entering the interior of the single-phase transformer body.

[0004] The existing high-impedance single-phase transformer generates a lot of heat when in use. Generally, the heat inside the single-phase transformer is passively dissipated through a heat sink. However, when the temperature difference between the inside and outside of the single-phase transformer is small, the heat dissipation effect of the single-phase transformer is poor. In view of this, we propose a high-impedance single-phase transformer. Utility Model Content

[0005] The purpose of the utility model is to provide a high-impedance single-phase transformer to solve the above-mentioned technical problems, so as to avoid the problem of poor heat dissipation effect of the single-phase transformer when the temperature difference between the inside and the outside of the single-phase transformer is small.

[0006] In view of this, the utility model provides a high impedance single-phase transformer, comprising:

[0007] The heat dissipation device is a heat dissipation device, and the heat dissipation device is a heat dissipation device. The heat dissipation device is a heat dissipation device, and the heat dissipation device is a heat dissipation device. The heat dissipation device is a heat dissipation device, and the heat dissipation device is a heat dissipation device. The heat dissipation device is a heat dissipation device, and the heat dissipation device is a heat dissipation device.

[0008] The transformer assembly is located on the inner wall of the shell and is used for performing voltage transformation operation on the voltage.

[0009] Based on the above structure, heat is generated when the shell is working. The heat inside the shell is conducted to the heat absorbing plate, and the heat in the heat absorbing plate is conducted to the outside of the shell through the heat dissipation plate, so as to realize passive air cooling and heat dissipation operation of the shell. When the temperature inside the shell is too high, the heat in the heat absorbing plate is conducted to the cooling medium inside the heat absorbing copper tube, so as to heat the cooling medium in the heat absorbing copper tube. The pump works to inject the cooling medium in the heat absorbing copper tube into the heat dissipation copper tube through the outlet pipe. Then, the cooling fan works to conduct the heat of the cooling medium in the heat dissipation copper tube to the outside of the shell. The cooled cooling medium re-enters the heat absorbing copper tube through the inlet pipe, so as to realize the circulating oil cooling and heat dissipation operation inside the shell, so as to greatly improve the service life of the transformer.

[0010] Preferably, two sides of the heat dissipation plate are respectively located inside the shell and the heat absorption frame, and four groups of heat dissipation plates are arranged, and the four groups of heat dissipation plates are evenly distributed along the outer wall of the heat absorption plate.

[0011] Preferably, the heat-absorbing copper tubes are distributed in an "S" shape along one side of the four groups of heat dissipation plates.

[0012] Preferably, the heat dissipation copper tube has an "S" shape, and heat-conducting medium is arranged inside the heat-absorbing copper tube and the heat-dissipating copper tube. The heat-absorbing copper tube forms a circulation structure with the heat-dissipating copper tube through the outlet tube and the inlet tube.

[0013] Preferably, the transformer assembly comprises:

[0014] An iron core, the iron core is fixedly connected to the inner wall of the shell, the outer wall of the iron core is wound with a coil winding, the outer wall of the coil winding is provided with insulating paper, a positioning strip is provided at the connection between the insulating paper and the coil winding, a positioning groove is provided at the connection between the positioning strip and the coil winding, an input terminal is fixedly connected to the top of the shell, and an output terminal is fixedly connected to one side of the input terminal at the top of the shell.

[0015] Preferably, the coil windings are provided with two groups, the coils inside the coil windings are concentrically distributed through insulating paper, and the positioning strips are provided with two groups, and the two groups of positioning strips are symmetrical with respect to the insulating paper.

[0016] Preferably, the coil winding forms a positioning structure through the positioning groove and the insulating paper.

[0017] The beneficial effects of the utility model are:

[0018] 1. The high-impedance single-phase transformer is provided with positioning grooves. When the coil winding is processed, the coil is wound along the positioning grooves on the outer wall of the positioning strip. The positioning grooves on the outer wall of the positioning strip are used to realize the positioning operation of the coil, thereby preventing the coil winding from vibrating during operation and the insulating paint on the outer wall of the coil winding from being worn, which may cause a short circuit in the coil winding.

[0019] 2. The high-impedance single-phase transformer generates heat when working inside the shell by arranging a heat sink and a heat dissipation copper tube. The heat inside the shell is transferred to the heat absorbing plate, and the heat in the heat absorbing plate is transferred to the outside of the shell through the heat sink, so as to realize passive air cooling and heat dissipation operation of the shell. When the temperature inside the shell is too high, the heat in the heat absorbing plate is transferred to the cooling medium inside the heat absorbing copper tube, and the cooling medium in the heat absorbing copper tube is heated. The pump works to inject the cooling medium in the heat absorbing copper tube into the heat dissipation copper tube through the outlet pipe. Then, the cooling fan works to transfer the heat of the cooling medium in the heat dissipation copper tube to the outside of the shell. The cooled cooling medium re-enters the heat absorbing copper tube through the inlet pipe, so as to realize circulating oil cooling and heat dissipation operation inside the shell, and greatly improve the service life of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model from the first perspective;

[0021] Figure 2 It is a schematic diagram of the structure of the overall second viewing angle of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection between the heat absorbing frame and the heat dissipating frame of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the coil winding of the utility model in three dimensions.

[0024] The symbols in the figure are:

[0025] 1. Shell; 2. Heat absorbing plate; 3. Heat absorbing frame; 4. Heat dissipation plate; 5. Heat absorbing copper tube; 6. Export pipe; 7. Heat dissipation frame; 8. Pump; 9. Heat dissipation copper tube; 10. Inlet pipe; 11. Cooling fan; 12. Iron core; 13. Coil winding; 14. Insulation paper; 15. Positioning strip; 16. Positioning groove; 17. Input terminal; 18. Output terminal. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1 - Figure 4 This application is described in further detail.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] The embodiment of the present application discloses a high impedance single-phase transformer, comprising:

[0029] A shell body 1, a heat absorbing plate 2 is fixedly connected to the inner wall of the shell body 1, a heat absorbing frame 3 is fixedly connected to one side of the heat absorbing plate 2 located on the outer wall of the shell body 1, a heat radiating plate 4 is fixedly connected to the outer wall of the heat absorbing frame 3, a heat radiating plate 4 is fixedly connected to one side of the heat radiating plate 4 located on the inner wall of the heat absorbing frame 3, a heat absorbing copper tube 5 is fixedly connected to one end of the heat absorbing copper tube 5, a heat dissipating frame 7 is fixedly connected to one side of the heat dissipating pipe 6 located on the outer wall of the shell body 1, a pump 8 is fixedly connected to one end of the heat dissipating pipe 6, a heat dissipating copper tube 9 is fixedly connected to the output end of the pump 8, an inlet pipe 10 fixedly connected to one end of the heat absorbing copper tube 5 is fixedly connected to one end of the heat absorbing copper tube 5, and a cooling fan 11 is fixedly connected to one side of the heat dissipating copper tube 9 located on the outer wall of the heat dissipating frame 7;

[0030] The transformer assembly is located on the inner wall of the housing 1 and is used to transform the voltage.

[0031] Based on the above structure, the heat inside the shell 1 is conducted to the heat absorbing plate 2, and the heat in the heat absorbing plate 2 is conducted to the outside of the shell 1 through the heat dissipation plate 4, so as to realize the passive air cooling and heat dissipation operation of the shell 1. When the temperature inside the shell 1 is too high, the heat in the heat absorbing plate 2 is conducted to the cooling medium inside the heat absorbing copper tube 5, so as to heat the cooling medium in the heat absorbing copper tube 5. The pump 8 works to inject the cooling medium in the heat absorbing copper tube 5 into the heat dissipation copper tube 9 through the outlet pipe 6. Then, the cooling fan 11 works to conduct the heat of the cooling medium in the heat dissipation copper tube 9 to the outside of the shell 1. The cooled cooling medium re-enters the heat absorbing copper tube 5 through the inlet pipe 10, so as to realize the circulating oil cooling and heat dissipation operation inside the shell 1, so as to greatly improve the service life of the transformer.

[0032] In one embodiment, two sides of the heat dissipation plate 4 are respectively located inside the shell 1 and the heat absorption frame 3 , and four groups of heat dissipation plates 4 are arranged, and the four groups of heat dissipation plates 4 are evenly distributed along the outer wall of the heat absorption plate 2 .

[0033] In this embodiment, the heat inside the shell 1 is conducted to the heat absorbing plate 2 , and the heat in the heat absorbing plate 2 is conducted to the outside of the shell 1 through the heat dissipation plate 4 , thereby realizing passive air cooling and heat dissipation operation of the shell 1 .

[0034] In one embodiment, the heat-absorbing copper tubes 5 are distributed in an “S” shape along one side of the four groups of heat dissipation plates 4 .

[0035] In this embodiment, the heat in the heat absorbing plate 2 is transferred to the cooling medium inside the heat absorbing copper tube 5 , and the cooling medium inside the heat absorbing copper tube 5 is heated, which is beneficial to increase the contact area between the heat absorbing copper tube 5 and the heat dissipation plate 4 .

[0036] In one embodiment, the heat dissipation copper tube 9 is in an "S" shape, and a heat-conducting medium is arranged inside the heat-absorbing copper tube 5 and the heat-dissipating copper tube 9. The heat-absorbing copper tube 5 forms a circulation structure with the heat-dissipating copper tube 9 through the outlet tube 6 and the inlet tube 10.

[0037] In this embodiment, the pump 8 works to inject the cooling medium in the heat-absorbing copper tube 5 into the heat-dissipating copper tube 9 through the outlet pipe 6. Then, the cooling fan 11 works to transfer the heat of the cooling medium in the heat-dissipating copper tube 9 to the outside of the shell 1. The cooled cooling medium re-enters the heat-absorbing copper tube 5 through the inlet pipe 10, thereby realizing the circulating oil cooling and heat dissipation operation inside the shell 1.

[0038] In one embodiment, the transformer assembly comprises:

[0039] An iron core 12 is fixedly connected to the inner wall of the shell 1, a coil winding 13 is wound around the outer wall of the iron core 12, an insulating paper 14 is provided on the outer wall of the coil winding 13, a positioning strip 15 is provided at the connection between the insulating paper 14 and the coil winding 13, a positioning groove 16 is provided at the connection between the positioning strip 15 and the coil winding 13, an input terminal 17 is fixedly connected to the top of the shell 1, and an output terminal 18 is fixedly connected to one side of the input terminal 17 at the top of the shell 1.

[0040] In this embodiment, high-voltage AC current enters a group of coil windings 13 on the outer wall of the iron core 12 through the input terminal 17, and AC magnetic flux is generated in the iron core 12, so that a voltage is induced in another group of coil windings 13 on the outer wall of the iron core 12, and the induced voltage is output from the output terminal 18. Then, by setting the insulating paper 14, the insulation operation between the coil windings 13 is realized. When the coil windings 13 are processed, the coil is wound along the positioning groove 16 on the outer wall of the positioning bar 15. By setting the positioning groove 16, the positioning operation of the coil is realized, so as to avoid the vibration of the coil winding 13 during operation, the insulating paint on the outer wall of the coil winding 13 is worn, and the coil winding 13 is caused to short-circuit.

[0041] In one embodiment, two groups of coil windings 13 are provided, the coils inside the coil windings 13 are concentrically distributed through the insulating paper 14 , and two groups of positioning bars 15 are provided, and the two groups of positioning bars 15 are symmetrical with respect to the insulating paper 14 .

[0042] In this embodiment, the insulation paper 14 is provided to achieve insulation between the coil windings 13 , and the coils inside the coil windings 13 are concentrically distributed through the insulation paper 14 , which is beneficial to improving the impedance of the transformer.

[0043] In one embodiment, the coil winding 13 forms a positioning structure with the insulating paper 14 through the positioning groove 16 .

[0044] In this embodiment, the coil is wound along the positioning groove 16 on the outer wall of the positioning strip 15. By setting the positioning groove 16, the coil is positioned to prevent the coil winding 13 from vibrating during operation and the insulating paint on the outer wall of the coil winding 13 from being worn, resulting in a short circuit in the coil winding 13.

[0045] When the high impedance single-phase transformer of this embodiment is in use, first, high voltage AC current enters a group of coil windings 13 on the outer wall of the iron core 12 through the input terminal 17, and AC magnetic flux is generated in the iron core 12, so that a voltage is induced in another group of coil windings 13 on the outer wall of the iron core 12, and the induced voltage is output from the output terminal 18.

[0046] Next, by setting the insulating paper 14, the insulation operation between the coil windings 13 is realized. When the coil winding 13 is processed, the coil is wound along the positioning groove 16 on the outer wall of the positioning strip 15. By setting the positioning groove 16, the positioning operation of the coil is realized to avoid the vibration of the coil winding 13 during operation, the wear of the insulating paint on the outer wall of the coil winding 13, and the short circuit of the coil winding 13. In addition, the coils inside the coil winding 13 are concentrically distributed through the insulating paper 14, which is beneficial to improve the impedance of the transformer.

[0047] Finally, heat is generated when working inside the shell 1, and the heat inside the shell 1 is conducted to the heat absorbing plate 2, and the heat in the heat absorbing plate 2 is conducted to the outside of the shell 1 through the heat dissipation plate 4, so as to realize passive air cooling and heat dissipation operation of the shell 1. When the temperature inside the shell 1 is too high, the heat in the heat absorbing plate 2 is conducted to the cooling medium inside the heat absorbing copper tube 5, and the cooling medium in the heat absorbing copper tube 5 is heated. The pump 8 works to inject the cooling medium in the heat absorbing copper tube 5 into the heat dissipation copper tube 9 through the outlet pipe 6. Then, the cooling fan 11 works, and the heat of the cooling medium in the heat dissipation copper tube 9 is conducted to the outside of the shell 1. The cooled cooling medium re-enters the heat absorbing copper tube 5 through the inlet pipe 10, so as to realize the circulating oil cooling and heat dissipation operation inside the shell 1, and greatly improve the service life of the transformer.

[0048] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high impedance single-phase transformer, characterized in that: include: A shell (1), wherein the inner wall of the shell (1) is fixedly connected to a heat absorbing plate (2), one side of the heat absorbing plate (2) is located on the outer wall of the shell (1) and is fixedly connected to a heat absorbing frame (3), the outer wall of the heat absorbing plate (2) extends to the outside of the heat absorbing frame (3) and is fixedly connected to a heat dissipation plate (4), one side of the heat dissipation plate (4) is located on the inner wall of the heat absorbing frame (3) and is fixedly connected to a heat absorbing copper tube (5), one end of the heat absorbing copper tube (5) is fixedly connected to an outlet tube (6), and the outlet tube (6) 6) is located on one side of the outer wall of the shell (1) and is fixedly connected to a heat dissipation frame (7); an inner wall of the heat dissipation frame (7) is located on one end of the outlet pipe (6) and is fixedly connected to a pump (8); the output end of the pump (8) is fixedly connected to a heat dissipation copper tube (9); one end of the heat dissipation copper tube (9) is fixedly connected to an inlet pipe (10) fixedly connected to one end of the heat absorbing copper tube (5); and one side of the heat dissipation copper tube (9) is located on the outer wall of the heat dissipation frame (7) and is fixedly connected to a cooling fan (11); A transformer component is located on the inner wall of the housing (1) and is used to transform the voltage.

2. The high impedance single-phase transformer according to claim 1, characterized in that: The two sides of the heat dissipation plate (4) are respectively located inside the shell (1) and the heat absorption frame (3), and four groups of heat dissipation plates (4) are provided. The four groups of heat dissipation plates (4) are evenly distributed along the outer wall of the heat absorption plate (2).

3. The high impedance single-phase transformer according to claim 1, characterized in that: The heat-absorbing copper tubes (5) are distributed in an "S" shape along one side of the four groups of heat dissipation plates (4).

4. The high impedance single-phase transformer according to claim 1, characterized in that: The heat dissipation copper tube (9) has an "S" shape, and heat-conducting medium is arranged inside the heat-absorbing copper tube (5) and the heat-dissipating copper tube (9). The heat-absorbing copper tube (5) forms a circulation structure with the heat-dissipating copper tube (9) through the outlet tube (6) and the inlet tube (10).

5. The high impedance single-phase transformer according to claim 1, characterized in that: The transformer assembly comprises: An iron core (12) is fixedly connected to the inner wall of a shell (1); a coil winding (13) is wound around the outer wall of the iron core (12); an insulating paper (14) is provided on the outer wall of the coil winding (13); a positioning strip (15) is provided at the connection between the insulating paper (14) and the coil winding (13); a positioning groove (16) is provided at the connection between the positioning strip (15) and the coil winding (13); an input terminal (17) is fixedly connected to the top of the shell (1); and an output terminal (18) is fixedly connected to one side of the input terminal (17) located at the top of the shell (1).

6. The high impedance single-phase transformer according to claim 5, characterized in that: The coil windings (13) are provided in two groups, the coils inside the coil windings (13) are concentrically distributed through the insulating paper (14), and the positioning strips (15) are provided in two groups, and the two groups of positioning strips (15) are symmetrical with respect to the insulating paper (14).

7. The high impedance single-phase transformer according to claim 5, characterized in that: The coil winding (13) forms a positioning structure with the insulating paper (14) through the positioning groove (16).

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