Low-voltage coil of dry-type transformer

Abstract

The utility model belongs to the technical field of low-voltage coils, and particularly relates to a dry-type transformer low-voltage coil which comprises a first supporting frame, supporting plates are installed in the first supporting frame in an array mode, coil bodies are installed on the supporting plates in a surrounding mode, and a second supporting frame is fixedly installed at the bottoms of the supporting plates. And a flowing groove is formed in the first supporting frame, an air inlet head is fixedly installed on the flowing groove, and a heat dissipation groove is fixedly installed in the supporting plate. The cooling efficiency of the low-voltage coil of the dry-type transformer is improved conveniently through the installed cooling grooves, when the low-voltage coil of the dry-type transformer is cooled, the ventilation assembly conveys wind to flow, the wind flows into the flowing grooves through the air inlet heads, then the wind flows into the cooling grooves, and the cooling efficiency of the low-voltage coil of the dry-type transformer is improved. And when the wind power flows, heat is carried, and after the wind power carrying the heat flows into the collecting groove, the wind power flows to the outside through the exhaust head, so that the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage coils, in particular to a dry-type transformer low-voltage coil. Background Art

[0002] The low-voltage coil of the dry-type transformer is an important component of the transformer. The low-voltage coil refers to the coil in the transformer that receives lower voltage and larger current. It receives the signal transmitted by the high-voltage coil, analyzes it into a low-voltage, high-current electrical signal, and outputs it to the next level circuit for use. The low-voltage coil of the dry-type transformer plays a vital role in the operation of the transformer. It is responsible for converting high-voltage electrical energy into low-voltage electrical energy and transmitting it to the user end.

[0003] The heat dissipation efficiency of the low-voltage coil of the dry-type transformer can be improved during use. If it is operated in a high-temperature environment for a long time, it may have an adverse effect on its service life.

[0004] Patent document CN205230776U discloses a low-voltage cast coil of a dry-type transformer, "including an outer low-voltage coil, an inner low-voltage coil, and an air duct formed between the outer low-voltage coil and the inner low-voltage coil, wherein the connection between the air duct and the outer low-voltage coil and the inner low-voltage coil is respectively provided with air duct insulation, and a plurality of vertically arranged struts are evenly arranged in the air duct, and the outer ring of the outer low-voltage coil and the inner ring of the inner low-voltage coil are both provided with surface insulation, and the outer low-voltage coil and the inner low-voltage coil are respectively provided with upper end insulation and lower end insulation at both ends, wherein corresponding insulation is provided between the two sets of upper end insulation The upper insulating block of the support bar, the lower insulating block corresponding to the support bar is arranged between the two groups of lower end insulation, and insulating pressure blocks are arranged directly above the upper insulating block and directly below the lower insulating block. The device converts the previous circular coil into an elliptical shape, reduces the amount of material used, and also strengthens the insulation performance between the coils and the stability of the support bar. However, the low-voltage cast coil of a dry-type transformer in the above-mentioned public document mainly considers reducing the amount of material used, and also strengthens the insulation performance between the coils and the stability of the support bar, but does not consider the problem of improving the heat dissipation efficiency. Therefore, it is necessary to develop a low-voltage coil of a dry-type transformer. Utility Model Content

[0005] The utility model aims to provide a low-voltage coil of a dry-type transformer to solve the technical problem of unsatisfactory heat dissipation efficiency proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-voltage coil of a dry-type transformer, comprising a No. 1 support frame, a support plate is installed in an array inside the No. 1 support frame, a coil body is installed around the support plate, a No. 2 support frame is fixedly installed on the bottom of the support plate, a flow groove is arranged inside the No. 1 support frame, an air intake head is fixedly installed on the flow groove, a heat dissipation groove is fixedly installed inside the support plate, and the heat dissipation groove is connected with the flow groove, a collecting groove is arranged inside the No. 2 support frame, and the heat dissipation groove is connected with the collecting groove, and an exhaust head is fixedly installed on the collecting groove.

[0007] Preferably, storage grooves are fixedly installed inside the No. 1 support frame and the No. 2 support frame.

[0008] Preferably, a positioning block is provided inside the storage groove.

[0009] Preferably, a threaded barrel is fixedly installed inside the positioning block, and a threaded rod is connected to the internal thread of the threaded barrel.

[0010] Preferably, a bearing is fixedly installed inside the receiving groove, and the threaded rod is fixedly connected to the inner ring of the bearing.

[0011] Preferably, a knob is fixedly mounted on one end of the threaded rod.

[0012] Preferably, guide grooves are symmetrically arranged inside the positioning block, a limiting block is arranged inside the guide groove, and the limiting block is fixedly connected to the inner wall of the storage groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model facilitates to improve the heat dissipation efficiency of the low-voltage coil of the dry-type transformer by installing the heat dissipation groove. When the low-voltage coil of the dry-type transformer is cooled, the air intake head is connected with the output end of the external ventilation component. The ventilation component transmits wind flow, and the wind flow is caused to enter the flow groove through the air intake head, and then the wind flow is caused to enter the heat dissipation groove to flow. When the wind flows, it carries heat. After the wind flow carrying the heat enters the interior of the collecting groove, the wind flow is caused to flow to the outside through the exhaust head, thereby improving the heat dissipation efficiency and thus improving the service life of the low-voltage coil of the dry-type transformer.

[0015] 2. The utility model facilitates to improve the stability of the installation of the low-voltage coil of the dry-type transformer by installing the positioning block. When the low-voltage coil of the dry-type transformer is installed, after the low-voltage coil of the dry-type transformer is placed at the installation location, turning the knob will drive the threaded rod to rotate. When the threaded rod rotates, the position of the threaded barrel will move. When the threaded barrel moves, it will drive the positioning block to slide inside the storage groove. The limit block cooperates with the guide groove to make the positioning block move smoothly. After the positioning block moves out of the storage groove, the positioning block contacts the outer wall of the mounting frame, and the position of the No. 1 support frame and the No. 2 support frame can be limited, thereby improving the stability of the installation of the low-voltage coil of the dry-type transformer, improving the installation efficiency, avoiding the position of the low-voltage coil of the dry-type transformer from sliding during installation, facilitating the staff to use tools to fix and install it, and at the same time improving the stability of the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the support plate structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation slot structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the storage slot structure of the utility model.

[0020] In the figure: 1. Support frame No. 1; 2. Support plate; 3. Support frame No. 2; 4. Coil body; 5. Flow groove; 6. Air inlet head; 7. Heat dissipation groove; 8. Collecting groove; 9. Exhaust head; 10. Storage groove; 11. Positioning block; 12. Limiting block; 13. Guide groove; 14. Threaded cylinder; 15. Threaded rod; 16. Bearing; 17. Knob. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 and Figure 3A dry-type transformer low-voltage coil comprises a first support frame 1, a support plate 2 is installed in an array inside the first support frame 1, a coil body 4 is installed around the support plate 2, a second support frame 3 is fixedly installed at the bottom of the support plate 2, a flow groove 5 is arranged inside the first support frame 1, an air intake head 6 is fixedly installed on the flow groove 5, a heat dissipation groove 7 is fixedly installed inside the support plate 2, and the heat dissipation groove 7 is connected to the flow groove 5, a collecting groove 8 is arranged inside the second support frame 3, and the heat dissipation groove 7 is connected to the collecting groove 8, an exhaust head 9 is fixedly installed on the collecting groove 8, and the exhaust head 9 is connected to the pipeline extending out of the dry When a dry-type transformer low-voltage coil is used inside a dry-type transformer, heat will be generated when it is installed and used. When it is cooled, the air intake head 6 is connected to the output end of the external ventilation component. The ventilation component transmits wind flow, which will enter the flow groove 5 through the air intake head 6, and then enter the heat dissipation groove 7 to flow. When the wind flows, it will carry heat. After the wind flow carrying the heat enters the collection groove 8, it is allowed to flow to the outside through the exhaust head 9, thereby improving the heat dissipation efficiency and thus increasing the service life of the dry-type transformer low-voltage coil.

[0023] See also Figure 1 and Figure 4 A positioning block 11 is arranged inside the storage groove 10 , and the storage groove 10 is fixedly installed inside the No. 1 support frame 1 and the No. 2 support frame 3 , and the storage groove 10 provides an installation space for the positioning block 11 .

[0024] See also Figure 4 A threaded barrel 14 is fixedly installed inside the positioning block 11, and a threaded rod 15 is connected to the internal thread of the threaded barrel 14. The positioning block 11 provides an installation space for the threaded barrel 14. Rotating the threaded rod 15 will move the position of the threaded barrel 14, and then the position of the positioning block 11 will move.

[0025] See also Figure 4 A bearing 16 is fixedly installed inside the storage groove 10, and the threaded rod 15 is fixedly connected to the inner ring of the bearing 16. A knob 17 is fixedly installed at one end of the threaded rod 15. The storage groove 10 provides an installation space for the threaded rod 15 through the bearing 16. Turning the knob 17 can drive the threaded rod 15 to rotate.

[0026] See also Figure 4The interior of the positioning block 11 is symmetrically provided with a guide groove 13, and a limit block 12 is arranged inside the guide groove 13, and the limit block 12 is fixedly connected to the inner wall of the storage groove 10. When the low-voltage coil of the dry-type transformer is installed, after the low-voltage coil of the dry-type transformer is placed at the installation location, turning the knob 17 will drive the threaded rod 15 to rotate, and when the threaded rod 15 rotates, the position of the threaded cylinder 14 will move. When the threaded cylinder 14 moves, it will drive the positioning block 11 to slide inside the storage groove 10. The limit block 12 cooperates with the guide groove 13 to make the positioning block 11 move smoothly, and then after the positioning block 11 moves out of the storage groove 10, the positioning block 11 contacts the outer wall of the mounting frame, and then the position of the No. 1 support frame 1 and the No. 2 support frame 3 can be limited, thereby improving the stability of the installation of the low-voltage coil of the dry-type transformer, improving the installation efficiency, avoiding the position of the low-voltage coil of the dry-type transformer from sliding during installation, facilitating the staff to use tools to fix and install it, and at the same time improving the stability of the installation.

[0027] Working principle, first when installing the low-voltage coil of the dry-type transformer, after placing the low-voltage coil of the dry-type transformer at the installation site, turning the knob 17 will drive the threaded rod 15 to rotate, and when the threaded rod 15 rotates, the position of the threaded barrel 14 will move, and when the threaded barrel 14 moves, it will drive the positioning block 11 to slide inside the storage groove 10, and the limit block 12 cooperates with the guide groove 13 to make the positioning block 11 move smoothly, and then after the positioning block 11 moves out of the storage groove 10, the positioning block 11 contacts the outer wall of the mounting frame, and then the position of the No. 1 support frame 1 and the No. 2 support frame 3 can be limited, thereby improving the stability of the installation of the low-voltage coil of the dry-type transformer, improving the installation efficiency, and during installation. During the process, the low-voltage coil of the dry-type transformer is prevented from sliding, which makes it convenient for the staff to use tools to fix and install it, and at the same time improves the stability of the installation. When it is installed and used, heat will be generated. When it is cooled, the air intake head 6 is connected with the output end of the external ventilation component, and the ventilation component transmits wind flow. The wind flow will enter the flow groove 5 through the air intake head 6, and then the wind flow will enter the heat dissipation groove 7 for flow. When the wind flows, it will carry heat. After the wind flow carrying the heat enters the collection groove 8, the wind flow is allowed to flow to the outside through the exhaust head 9, thereby improving the heat dissipation efficiency and thus improving the service life of the low-voltage coil of the dry-type transformer.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A dry-type transformer low-voltage coil, comprising a first support frame (1), characterized in that: The first support frame (1) is provided with a support plate (2) in an array inside, a coil body (4) is installed around the support plate (2), a second support frame (3) is fixedly installed at the bottom of the support plate (2), a flow groove (5) is arranged inside the first support frame (1), an air intake head (6) is fixedly installed on the flow groove (5), a heat dissipation groove (7) is fixedly installed inside the support plate (2), and the heat dissipation groove (7) is connected to the flow groove (5), a collection groove (8) is arranged inside the second support frame (3), and the heat dissipation groove (7) is connected to the collection groove (8), and an exhaust head (9) is fixedly installed on the collection groove (8).

2. A dry-type transformer low-voltage coil according to claim 1, characterized in that: The first support frame (1) and the second support frame (3) are fixedly provided with storage grooves (10) inside.

3. A dry-type transformer low-voltage coil according to claim 2, characterized in that: A positioning block (11) is arranged inside the storage groove (10).

4. A dry-type transformer low-voltage coil according to claim 3, characterized in that: A threaded barrel (14) is fixedly installed inside the positioning block (11), and a threaded rod (15) is threadedly connected to the inside of the threaded barrel (14).

5. A dry-type transformer low-voltage coil according to claim 4, characterized in that: A bearing (16) is fixedly installed inside the receiving groove (10), and the threaded rod (15) is fixedly connected to the inner ring of the bearing (16).

6. A dry-type transformer low-voltage coil according to claim 5, characterized in that: A knob (17) is fixedly mounted on one end of the threaded rod (15).

7. A dry-type transformer low-voltage coil according to claim 6, characterized in that: The positioning block (11) is symmetrically provided with guide grooves (13) inside, a limiting block (12) is provided inside the guide groove (13), and the limiting block (12) is fixedly connected to the inner wall of the storage groove (10).

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