Grounding structure of mutual inductor

Abstract

The utility model discloses a mutual inductor grounding structure, which belongs to the technical field of mutual inductors and comprises a mutual inductor body, a first binding post is slidably connected to one side of the mutual inductor body, a first connecting plate is fixedly connected to one end, located outside the mutual inductor body, of the first binding post, and a second connecting plate is arranged on one side of the first connecting plate. A second binding post is fixedly connected to one side of the second connecting plate, and abutting assemblies are arranged on the surfaces of the first binding post and the second binding post; the grounding structure is connected with the mutual inductor body through cooperative use of the first connecting line, the second connecting line, the first binding post, the second binding post, the first connecting plate and the second connecting plate, and when the grounding structure is installed, the first connecting plate and the second connecting plate can abut against each other and make contact with each other through the abutting assembly. And dustproof protection is carried out on the contact part through the protection assembly, so that the problem of poor contact caused by long-time corrosion of the contact part exposed outside and adhesion of dust is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of mutual inductors, in particular to a mutual inductor grounding structure. Background Art

[0002] The transformer is a common electrical equipment that completes the conversion of current and voltage to ensure the safety of the electrical equipment. The transformer needs to be connected to the ground wire during use. In order not to disassemble the transformer when connecting the ground wire, a grounding structure is usually set on the outside of the transformer.

[0003] A Chinese patent with the publication number CN208767132U discloses a transformer secondary terminal grounding structure, which belongs to the field of transformer technology and is characterized in that it at least includes: a secondary wiring piece connected to the secondary winding; a secondary grounding piece; a secondary grounding screw for connecting the secondary wiring piece and the secondary grounding piece; an insulating gasket is sandwiched between the secondary wiring piece and the secondary grounding piece; an installation insert, the installation insert is connected to the secondary grounding piece through a wire; the secondary wiring piece and the secondary grounding piece are N in number, N being a natural number greater than 1; the secondary grounding piece is made of copper; the insulating gasket is made of epoxy board. By adopting the above technical solution, the transformer in the utility model adopts a direct grounding method, the secondary connection piece is directly installed inside the casting body during the mold assembly, and the secondary grounding screw can be directly installed when in use.

[0004] The grounding structure involved in the above patent has its connection position directly exposed to the outside. It is very easy to rust or have debris and dust attached to its connection during long-term use, resulting in poor contact. Therefore, we need to propose a transformer grounding structure. Utility Model Content

[0005] The purpose of the utility model is to provide a transformer grounding structure, which has the advantage of being able to provide dust protection for the connection of the grounding structure, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a transformer grounding structure, including a transformer body, a first terminal slidably connected to one side of the transformer body, a first connecting plate fixedly connected to one end of the first terminal located outside the transformer body, a second connecting plate provided on one side of the first connecting plate, a second terminal fixedly connected to one side of the second connecting plate, a clamping assembly for clamping the first connecting plate and the second connecting plate together is provided on the surface of the first terminal and the second terminal, and a protective assembly for dustproofing the first connecting plate and the second connecting plate is provided on the outside of the clamping assembly.

[0007] Preferably, the clamping assembly includes a first connecting ring fixedly mounted on one side of the transformer body, the inner ring of the first connecting ring is slidably connected to the surface of the first terminal, the surface of the second terminal is slidably connected to the second connecting ring, one side of the first connecting ring and the second connecting ring are both fixedly mounted with compression springs, the other ends of the two groups of compression springs are respectively fitted with the surfaces of the first connecting plate and the second connecting plate, and a limiting assembly is arranged between the first connecting ring and the second connecting ring and the first terminal and the second terminal.

[0008] Preferably, the limiting assembly includes a limiting rod fixedly mounted on the inner rings of the first connecting ring and the second connecting ring, and the surfaces of the first terminal and the second terminal are provided with limiting grooves matching the limiting rod, and the surface of the limiting rod is slidably connected to the inner wall of the limiting groove.

[0009] Preferably, the protective assembly includes a protective shell arranged below the first connecting ring and the second connecting ring, a protective cover is provided on the top of the protective shell, the protective cover is locked and fixed to the top of the protective shell by a locking assembly, and the protective shell is clamped and fixed together with the first connecting ring and the second connecting ring by a clamping assembly.

[0010] Preferably, the snap-on assembly includes mounting grooves provided at both ends of the protective shell, the first connecting ring and the second connecting ring are provided with snap-on grooves on both sides, and the two sides of the inner cavity of the mounting groove are snap-oned with the inner wall of the snap-on groove.

[0011] Preferably, the locking assembly includes a first locking column fixedly installed on both sides of the protective cover, a second locking column fixedly connected to both sides of the protective shell and located below the first locking column, a locking rod slidably inserted into the top of the first locking column, and the bottom end of the locking rod passes through the first locking column and is threadedly connected to the top of the second locking column.

[0012] Preferably, a countersunk hole is formed at the top end of the first locking column, and the top end of the locking rod is hidden in the inner cavity of the countersunk hole.

[0013] Preferably, one end of the first terminal is connected to the transformer body via a first connecting wire, and one end of the second terminal is fixedly connected to a second connecting wire.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model connects the grounding structure to the transformer body by using a first connecting line, a second connecting line, a first terminal, a second terminal, a first connecting plate and a second connecting plate in combination. When installing the grounding structure, the first connecting plate and the second connecting plate can be pressed together by a pressing component, and the contact parts thereof can be dust-proofed by a protective component to prevent them from being exposed to the outside for a long time and being corroded and adhered to dust, resulting in poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a schematic diagram of the structure of the protective component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first connecting plate and the second connecting plate of the utility model when they are pressed together;

[0019] Figure 4 It is a structural schematic diagram of the tightening component of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the locking assembly of the utility model.

[0021] In the figure: 1. transformer body; 2. first terminal; 3. first connecting plate; 4. second connecting plate; 5. second terminal; 6. first connecting ring; 7. second connecting ring; 8. compression spring; 9. limit rod; 10. limit groove; 11. protective shell; 12. protective cover; 13. installation groove; 14. card slot; 15. first locking column; 16. second locking column; 17. locking rod; 18. countersunk hole; 19. first connecting line; 20. second connecting line. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5The utility model provides a transformer grounding structure, including a transformer body 1, a first terminal 2 is slidably connected to one side of the transformer body 1, a first connecting plate 3 is fixedly connected to one end of the first terminal 2 located outside the transformer body 1, a second connecting plate 4 is provided on one side of the first connecting plate 3, a second connecting plate 4 is fixedly connected to one side of the second connecting plate 4, one end of the first terminal 2 is connected to the transformer body 1 through a first connecting line 19, and one end of the second terminal 5 is fixedly connected to a second connecting line 20.

[0024] In this embodiment, the grounding structure is connected to the transformer body 1 through the second connecting wire 20. When the grounding structure needs to be connected to the transformer body 1, the first connecting plate 3 and the second connecting plate 4 can be pressed together. When the first connecting wire 19, the second connecting wire 20, the first terminal 2, the second terminal 5, the first connecting plate 3 and the second connecting plate 4 are used in combination, the grounding structure can be connected to the transformer body 1.

[0025] Preferably, the surfaces of the first terminal 2 and the second terminal 5 are provided with a clamping assembly for pressing the first connecting plate 3 and the second connecting plate 4 together, and the clamping assembly includes a first connecting ring 6 fixedly installed on one side of the transformer body 1, the inner ring of the first connecting ring 6 is slidably connected to the surface of the first terminal 2, and the surface of the second terminal 5 is slidably connected to the second connecting ring 7, and one side of the first connecting ring 6 and the second connecting ring 7 are fixedly installed with compression springs 8, and the other ends of the two groups of compression springs 8 are respectively fitted with the surfaces of the first connecting plate 3 and the second connecting plate 4.

[0026] By setting the clamping assembly, when the first connecting plate 3 and the second connecting plate 4 are pressed together, the user can push the second connecting ring 7 in the direction of the first connecting ring 6. The movement of the second connecting ring 7 will squeeze the corresponding compression spring 8, so that the first connecting plate 3 and the second connecting plate 4 can be pressed together under the pressing action of the two sets of compression springs 8.

[0027] Among them, a limiting assembly is arranged between the first connecting ring 6 and the second connecting ring 7 and the first terminal 2 and the second terminal 5, and the limiting assembly includes a limiting rod 9 fixedly installed on the inner circle of the first connecting ring 6 and the second connecting ring 7. The surfaces of the first terminal 2 and the second terminal 5 are provided with limiting grooves 10 adapted to the limiting rod 9. The surface of the limiting rod 9 is slidably connected to the inner wall of the limiting groove 10. The setting of the limiting assembly can improve the stability of relative movement between the first connecting ring 6, the second connecting ring 7 and the first terminal 2, the second terminal 5. When it moves, the surface of the limiting rod 9 will slide in the inner cavity of the limiting groove 10.

[0028] It is worth mentioning that a protective component for dust-proofing the first connecting plate 3 and the second connecting plate 4 is provided on the outside of the clamping component. The protective component includes a protective shell 11 provided below the first connecting ring 6 and the second connecting ring 7. A protective cover 12 is provided on the top of the protective shell 11. The protective shell 11 is clamped and fixed to the first connecting ring 6 and the second connecting ring 7 through a clamping component. The clamping component includes mounting grooves 13 opened at both ends of the protective shell 11. Both sides of the first connecting ring 6 and the second connecting ring 7 are provided with clamping grooves 14. Both sides of the inner cavity of the mounting groove 13 are clamped with the inner wall of the clamping groove 14.

[0029] Through the setting of the protective component, after the first connecting plate 3 and the second connecting plate 4 are pressed together by the clamping component, the user can move the protective shell 11 from bottom to top, and respectively insert the mounting grooves 13 at both ends of the protective shell 11 into the clamping grooves 14 on both sides of the first connecting ring 6 and the second connecting ring 7, thereby fixing the use position of the two sets of clamping components.

[0030] Furthermore, the protective cover 12 is locked and fixed to the top of the protective shell 11 through a locking assembly, and the locking assembly includes a first locking column 15 fixedly installed on both sides of the protective cover 12, and a second locking column 16 is fixedly connected to both sides of the protective shell 11 and located below the first locking column 15. A locking rod 17 is slidably inserted into the top of the first locking column 15, and the bottom end of the locking rod 17 passes through the first locking column 15 and is threadedly connected to the top of the second locking column 16. A countersunk hole 18 is opened at the top of the first locking column 15, and the top of the locking rod 17 is hidden in the inner cavity of the countersunk hole 18.

[0031] After installing the protective shell 11 on the surfaces of the first connecting ring 6 and the second connecting ring 7, the user can cover the protective cover 12 tightly on the top of the protective shell 11, and then tighten the locking rod 17. The rotation of the locking rod 17 will cause its bottom end to pass through the first locking column 15 and be threadedly connected to the top of the second locking column 16, thereby locking and fixing the protective cover 12 on the top of the protective shell 11. The combined use can provide dust-proof protection for the connection between the first connecting plate 3 and the second connecting plate 4. Through the setting of the countersunk hole 18, the top end of the locking rod 17 will be hidden in the inner cavity of the countersunk hole 18 when tightened, so as to improve the flatness of the surface of the protective cover 12.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The transformer grounding structure is characterized by: include: Transformer body (1); A first terminal (2) is slidably connected to one side of the transformer body (1); an end of the first terminal (2) located outside the transformer body (1) is fixedly connected to a first connecting plate (3); a second connecting plate (4) is provided on one side of the first connecting plate (3); and a second terminal (5) is fixedly connected to one side of the second connecting plate (4); The surfaces of the first terminal (2) and the second terminal (5) are both provided with a pressing assembly for pressing the first connecting plate (3) and the second connecting plate (4) together; A protection component for protecting the first connecting plate (3) and the second connecting plate (4) from dust is arranged outside the abutting component.

2. The mutual inductor grounding structure according to claim 1, characterized in that: The clamping assembly comprises a first connecting ring (6) fixedly mounted on one side of the transformer body (1); the inner ring of the first connecting ring (6) is slidably connected to the surface of the first terminal (2); the surface of the second terminal (5) is slidably connected to a second connecting ring (7); one side of each of the first connecting ring (6) and the second connecting ring (7) is fixedly mounted with a compression spring (8); the other ends of the two groups of compression springs (8) are respectively fitted with the surfaces of the first connecting plate (3) and the second connecting plate (4).

3. The mutual inductor grounding structure according to claim 2, characterized in that: A limiting assembly is provided between the first connecting ring (6) and the second connecting ring (7) and the first connecting post (2) and the second connecting post (5).

4. The mutual inductor grounding structure according to claim 3, characterized in that: The limiting assembly comprises a limiting rod (9) fixedly mounted on the inner rings of the first connecting ring (6) and the second connecting ring (7); the surfaces of the first terminal (2) and the second terminal (5) are provided with limiting grooves (10) adapted to the limiting rod (9); the surface of the limiting rod (9) is slidably connected to the inner wall of the limiting groove (10).

5. The mutual inductor grounding structure according to claim 4, characterized in that: The protection assembly comprises a protection shell (11) arranged below the first connecting ring (6) and the second connecting ring (7); a protection cover (12) is arranged on the top of the protection shell (11); and the protection cover (12) is locked and fixed to the top of the protection shell (11) by a locking assembly.

6. The mutual inductor grounding structure according to claim 5, characterized in that: The protective shell (11) is clamped and fixed together with the first connecting ring (6) and the second connecting ring (7) through a clamping assembly.

7. The mutual inductor grounding structure according to claim 6, characterized in that: The clamping assembly comprises mounting grooves (13) formed at both ends of the protective shell (11), and clamping grooves (14) are formed on both sides of the first connecting ring (6) and the second connecting ring (7), and both sides of the inner cavity of the mounting groove (13) are clamped with the inner wall of the clamping groove (14).

8. The mutual inductor grounding structure according to claim 7, characterized in that: The locking assembly comprises a first locking column (15) fixedly mounted on both sides of the protective cover (12), a second locking column (16) fixedly connected to both sides of the protective shell (11) and located below the first locking column (15), a locking rod (17) slidably inserted into the top of the first locking column (15), and the bottom end of the locking rod (17) passes through the first locking column (15) and is threadedly connected to the top of the second locking column (16).

9. The mutual inductor grounding structure according to claim 8, characterized in that: A countersunk hole (18) is provided at the top end of the first locking column (15), and the top end of the locking rod (17) is hidden in the inner cavity of the countersunk hole (18).

10. The mutual inductor grounding structure according to claim 1, characterized in that: One end of the first terminal (2) is connected to the transformer body (1) via a first connecting line (19), and one end of the second terminal (5) is fixedly connected to a second connecting line (20).

Images