Annular transformer with magnetic shielding

Abstract

The utility model belongs to the technical field of annular transformers, and particularly relates to an annular transformer with magnetic shielding, which comprises a base, a lower shielding shell fixedly connected to the upper surface of the base, an inner column fixedly connected to the inside of the base, an annular transformer body sleeved on the outer surface of the inner column, and a lower surface of the annular transformer body abutted against the upper surface of the base. The top end of the inner column is in threaded connection with a threaded sleeve, and the upper surface of the threaded sleeve is fixedly connected with a top ring. The annular transformer body is placed in the base through the inner column, the lower shielding shell shields the outer surface of the lower layer of the annular transformer body, then the upper shielding shell and the inner shell are placed on the upper surface of the lower shielding shell, and the inner shell wraps and fixes the inner annular transformer body. And then the threaded sleeve is connected to the top end of the inner column in a threaded manner, and the internal annular transformer body is limited through the top ring, so that an efficient magnetic shielding effect is achieved while the annular transformer body is conveniently protected.

Description

Technical Field

[0001] This utility model relates to the field of toroidal transformer technology, specifically a toroidal transformer with magnetic shielding. Background Technology

[0002] A toroidal transformer is a special type of transformer. Compared to traditional rectangular or square transformers, its main characteristic is the use of a toroidal core structure. Toroidal transformers typically use circular iron core coils wound into a ring, resembling a circular magnetic circuit. This design offers many unique advantages in improving transformer performance and efficiency.

[0003] The prior art has the following defects or problems: The prior art disclosed in CN221651306U is a toroidal transformer with magnetic shielding cylinder potting, including a toroidal transformer body. The upper and lower end faces of the toroidal transformer body are both glued with fixed cover plates, and bolts are inserted and fixed between the two fixed cover plates.

[0004] During use, the above-mentioned equipment moves the upper and lower shielding cylinders in opposite directions, causing them to be fitted onto the outer ring of the toroidal transformer body. Then, the opposing ends of the upper and lower shielding cylinders are inserted into the fixed ring seat with an I-shaped cross-section. Multiple fixing ears welded to the inner sides of the upper and lower shielding cylinders extend into the corresponding positioning grooves on the surfaces of the two fixed cover plates. With the first screw fixing the fixed ring seat, the upper shielding cylinder, and the lower shielding cylinder, and the second screw fixing the fixed cover plate and the fixing ear, combined with the filling resin layer, it has the advantage of reliable installation while maintaining the original small size and low cost.

[0005] The above-mentioned method of connecting the shielding cylinder is quite laborious, requiring multiple bolts for fixation. It is time-consuming, laborious, and difficult to disassemble. Therefore, in order to address the above shortcomings, a toroidal transformer with magnetic shielding is proposed.

[0006] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0007] In view of the shortcomings of the existing technology, this utility model provides a toroidal transformer with magnetic shielding, which solves the existing problems.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a magnetically shielded toroidal transformer, comprising a base, a lower shielding shell fixedly connected to the upper surface of the base, an inner column fixedly connected inside the base, a toroidal transformer body sleeved on the outer surface of the inner column, the lower surface of the toroidal transformer body abutting against the upper surface of the base, a threaded sleeve threadedly connected to the top end of the inner column, a top ring fixedly connected to the upper surface of the threaded sleeve, an upper shielding shell disposed on the upper surface of the lower shielding shell, an inner shell fixedly connected inside the upper shielding shell, and the inner wall of the inner shell abutting against the outer surface of the toroidal transformer body.

[0009] As a preferred technical solution of this utility model, the lower shield shell has an inner groove, a damper is fixedly connected inside the inner groove, a limit ring is fixedly connected to the output end of the damper, and a plug rod is fixedly connected to the outer surface of the limit ring.

[0010] As a preferred technical solution of this utility model, the upper surface of the lower shielding shell is provided with an insertion groove, the other side of the insertion groove is provided with a sliding groove, and the inside of the insertion groove is provided with a widening groove.

[0011] As a preferred embodiment of this utility model, a sliding rod is fixedly connected to the outer surface of the upper shield shell, and a widening rod is fixedly connected to the bottom end of the sliding rod. The outer surface of the sliding rod is slidably connected to the inside of the sliding groove, and the outer surface of the widening rod is slidably connected to the inside of the widening groove. The inside of the widening rod is interlocked with the insert rod.

[0012] As a preferred embodiment of this utility model, an auxiliary ring is fixedly connected to the outer surface of the upper shielding shell.

[0013] As a preferred embodiment of this utility model, a spring is fixedly connected to the outer surface of the damper, and the other end of the spring is fixedly connected to the outer surface of the limiting ring.

[0014] Compared with the prior art, this utility model provides a toroidal transformer with magnetic shielding, which has the following beneficial effects:

[0015] I. A magnetically shielded toroidal transformer comprises a base, a lower shielding shell, an inner column, a toroidal transformer body, a threaded sleeve, a top ring, an upper shielding shell, and an inner shell. The toroidal transformer body is placed inside the base through the inner column. The lower shielding shell shields the lower outer surface of the toroidal transformer body. Then, the upper shielding shell and the inner shell are placed on the upper surface of the lower shielding shell. The inner shell wraps and fixes the toroidal transformer body inside. The threaded sleeve is then connected to the top of the inner column by threading. The top ring limits the position of the toroidal transformer body inside. Thus, it can effectively protect the toroidal transformer body while providing efficient magnetic shielding.

[0016] II. This type of magnetically shielded toroidal transformer, by comprising an inner groove, a damper, a limiting ring, an insert rod, an insertion groove, a sliding groove, a widening groove, a sliding rod, and a widening rod, allows the upper and lower shielding shells to be fixed as a whole, preventing them from falling off and facilitating easy removal. The widening rod and sliding rod are inserted into the insertion groove and then into the widening groove. Rotating the auxiliary ring causes the upper shielding shell to rotate along with the lower shielding shell. The sliding rod then rotates within the sliding groove and widening groove, abutting against the insert rod. The insert rod is then retracted by the damper and spring, quickly returning to its original position within the widening rod, thus securing it in place. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation and disassembly structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the shell connection structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the housing of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Base; 2. Lower shielding shell; 3. Inner column; 4. Toroidal transformer body; 5. Threaded sleeve; 6. Top ring; 7. Upper shielding shell; 8. Inner shell; 9. Inner groove; 10. Damper; 11. Limiting ring; 12. Insert rod; 13. Insertion groove; 14. Slide groove; 15. Widening groove; 16. Spring; 17. Slide rod; 18. Widening rod; 19. Auxiliary ring. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figures 1-5 As shown, this utility model provides a technical solution: a magnetically shielded toroidal transformer, including a base 1, a lower shielding shell 2 fixedly connected to the upper surface of the base 1, an inner column 3 fixedly connected inside the base 1, a toroidal transformer body 4 sleeved on the outer surface of the inner column 3, the lower surface of the toroidal transformer body 4 abutting against the upper surface of the base 1, a threaded sleeve 5 threadedly connected to the top of the inner column 3, a top ring 6 fixedly connected to the upper surface of the threaded sleeve 5, an upper shielding shell 7 provided on the upper surface of the lower shielding shell 2, an inner shell 8 fixedly connected inside the upper shielding shell 7, the inner wall of the inner shell 8 abutting against the outer surface of the toroidal transformer body 4, and an auxiliary ring 19 fixedly connected to the outer surface of the upper shielding shell 7.

[0027] In this embodiment, the toroidal transformer body 4 is placed inside the base 1 through the inner column 3. The lower outer surface of the toroidal transformer body 4 is shielded by the lower shielding shell 2. Then, the upper shielding shell 7 and the inner shell 8 are placed on the upper surface of the lower shielding shell 2. The inner shell 8 wraps and fixes the inner toroidal transformer body 4. The threaded sleeve 5 is then threaded to the top of the inner column 3. The top ring 6 limits the position of the inner toroidal transformer body 4.

[0028] Example 2

[0029] like Figures 1-5 As shown, the lower shield shell 2 has an inner groove 9 inside, and a damper 10 is fixedly connected inside the inner groove 9. A limit ring 11 is fixedly connected to the output end of the damper 10. An insert rod 12 is fixedly connected to the outer surface of the limit ring 11. The upper surface of the lower shield shell 2 has an insertion groove 13. A sliding groove 14 is opened on the other side of the insertion groove 13. A widening groove 15 is opened inside the insertion groove 13. A sliding rod 17 is fixedly connected to the outer surface of the upper shield shell 7. A widening rod 18 is fixedly connected to the bottom end of the sliding rod 17. The outer surface of the sliding rod 17 is slidably connected to the inside of the sliding groove 14. The outer surface of the widening rod 18 is slidably connected to the inside of the widening groove 15. The inside of the widening rod 18 is interlocked with the insert rod 12. A spring 16 is fixedly connected to the outer surface of the damper 10. The other end of the spring 16 is fixedly connected to the outer surface of the limit ring 11.

[0030] In this embodiment, by inserting the widening rod 18 and the sliding rod 17 into the insertion groove 13, they enter the interior of the widening groove 15. The auxiliary ring 19 is rotated, and the upper shielding shell 7 is rotated together. The sliding rod 17 drives the sliding rod 17 and the widening rod 18 to rotate inside the sliding groove 14 and the widening groove 15. By abutting against the insertion rod 12, the insertion rod 12 is contracted by the damper 10 and the spring 16, and then quickly returns to the interior of the widening rod 18, thus fixing the widening rod 18.

[0031] The working principle of this embodiment is as follows: First, the toroidal transformer body 4 is placed inside the base 1 through the inner column 3. The lower shielding shell 2 shields the lower outer surface of the toroidal transformer body 4. Then, the upper shielding shell 7 and the inner shell 8 are placed on the upper surface of the lower shielding shell 2. The inner shell 8 wraps and fixes the inner toroidal transformer body 4. Then, the threaded sleeve 5 is threaded to the top of the inner column 3. The top ring 6 limits the position of the inner toroidal transformer body 4. Thus, it is possible to protect the toroidal transformer body 4 while achieving efficient magnetic shielding. By inserting the widening rod 18 and the sliding rod 17 into the through groove 13, they enter the interior of the widening groove 15. Rotating the auxiliary ring 19 causes the upper shielding shell 7 to rotate as well. The sliding rod 17 drives the sliding rod 17 and the widening rod 18 to rotate inside the sliding groove 14 and the widening groove 15. By abutting against the insertion rod 12, the insertion rod 12 is retracted by the damper 10 and the spring 16, and then quickly returns to the interior of the widening rod 18. The widening rod 18 can then be fixed. This achieves the goal of fixing the upper shielding shell 7 and the lower shielding shell 2 as a whole, preventing them from falling off, and making them easy to remove.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A toroidal transformer with magnetic shielding, characterized by: The application relates to a transformer, which comprises a base (1), a lower shielding shell (2) fixedly connected to the upper surface of the base (1), an inner column (3) fixedly connected to the inside of the base (1), an annular transformer body (4) sleeved with the outer surface of the inner column (3), the lower surface of the annular transformer body (4) abutting against the upper surface of the base (1), a threaded sleeve (5) threadedly connected to the top end of the inner column (3), a top ring (6) fixedly connected to the upper surface of the threaded sleeve (5), an upper shielding shell (7) arranged on the upper surface of the lower shielding shell (2), an inner shell (8) fixedly connected to the inside of the upper shielding shell (7), and the inner wall of the inner shell (8) abutting against the outer surface of the annular transformer body (4).

2. A toroidal transformer with magnetic shielding according to claim 1, characterized in that: An inner groove (9) is formed in the inside of the lower shielding shell (2), a damper (10) is fixedly connected to the inside of the inner groove (9), the output end of the damper (10) is fixedly connected to a limiting ring (11), and the outer surface of the limiting ring (11) is fixedly connected to a plug rod (12).

3. The toroidal transformer with magnetic shielding according to claim 1, characterized in that: A penetrating groove (13) is formed in the upper surface of the lower shielding shell (2), a sliding groove (14) is formed in the other side of the penetrating groove (13), and a widened groove (15) is formed in the inside of the penetrating groove (13).

4. The toroidal transformer with magnetic shielding according to claim 1, characterized in that: The outer surface of the upper shielding shell (7) is fixedly connected to a sliding rod (17), the bottom end of the sliding rod (17) is fixedly connected to a widened rod (18), the outer surface of the sliding rod (17) is slidingly connected to the inside of the sliding groove (14), the outer surface of the widened rod (18) is slidingly connected to the inside of the widened groove (15), and the inside of the widened rod (18) is clamped with the plug rod (12).

5. The toroidal transformer with magnetic shielding according to claim 1, characterized in that: The outer surface of the upper shielding shell (7) is fixedly connected to an auxiliary ring (19).

6. The toroidal transformer with magnetic shielding according to claim 2, characterized in that: The outer surface of the damper (10) is fixedly connected to a spring (16), and the other end of the spring (16) is fixedly connected to the outer surface of the limiting ring (11).

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