Mutual inductor with protection function

Abstract

The utility model relates to the technical field of mutual inductors, and discloses a mutual inductor with a protection function, which comprises a mutual inductor body, a mounting plate is arranged at the bottom of the mutual inductor body, according to the mutual inductor with the protection function, a clamping block can be pulled out of a clamping hole through a traction line by rotating a rotating plate, so that the mutual inductor is prevented from being damaged. Therefore, the first shell and the second shell can be separated and disassembled, the mutual inductor body in the protective shell can be overhauled, and simplicity and convenience are achieved.

Description

Technical Field

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

[0002] A transformer is an instrument that converts a large primary current into a small secondary current for measurement based on the principle of electromagnetic induction. The transformer consists of a closed iron core and a winding. Its primary winding has very few turns and is connected in series in the circuit of the current to be measured. The transformer is mostly set inside a protective shell made of insulating material. Its function is to protect the internal circuit and coil, while providing mechanical support and fixation. The shell can also isolate external dust, moisture and other adverse factors to ensure the normal operation of the transformer.

[0003] At present, some transformers on the market usually have their protective shells fixedly connected by bolts. However, the bolted connection method makes it troublesome to disassemble the transformer when it needs to be repaired, which wastes time.

[0004] Therefore, we propose a mutual inductor with protection function to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that some current transformers, whose protective shells are usually fixedly connected by bolts, but the bolted connection method will lead to troublesome disassembly and waste of time when the transformer needs to be repaired.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a transformer with a protective function, comprising a transformer body, a mounting plate is arranged at the bottom of the transformer body, a protective shell is arranged on the outside of the transformer body, the protective shell comprises a first shell and a second shell, the first shell comprises a first storage shell, a first annular shell is arranged at the center of the first storage shell, and a first mounting plate adapter groove is arranged at the bottom of the first storage shell, two first terminal protection tubes are arranged at the top of the first storage shell, and a plurality of connection sockets are arranged on the end surface of the first storage shell, the second shell comprises a second storage shell, a second annular shell is arranged at the center of the second storage shell, and a second An adapter groove is provided on the mounting plate, two second terminal protection tubes are provided on the top of the second storage shell, and a plurality of connecting plates slidably connected to the connecting socket are provided on the end surface of the second storage shell, and a card hole is provided on the connecting plate, and an annular mechanism plate is connected to the outer surface of the first storage shell, and spring cavities are provided at positions corresponding to the connecting sockets in the annular mechanism plate, and a limit plate and a compression spring are provided in the spring cavity, a card block slidably connected to the card hole is provided on the side of the limit plate, and a pulling wire is connected to the other side of the limit plate, an annular groove is provided on the outer ring surface of the annular mechanism plate, a rotating plate is rotatably connected in the annular groove, a plurality of rotating finger grooves are provided on the rotating plate, and one end of the pulling wire is connected to the rotating plate.

[0007] Furthermore, a plurality of evenly distributed balls are arranged on the rotating plate, and ball grooves adapted to the balls are symmetrically opened on the inner side wall of the annular groove.

[0008] Furthermore, the side surface of the card block facing the connection socket opening is configured as an arc-shaped structure.

[0009] Furthermore, a mounting hole is provided on the mounting plate.

[0010] Furthermore, a first terminal protection box is hingedly connected to the top of the first storage shell at a position corresponding to the first terminal protection tube, and a second terminal protection box is hingedly connected to the top of the second storage shell at a position corresponding to the second terminal protection tube, first wire passing holes are provided at both ends of the first terminal protection box, second wire passing holes are provided at both ends of the second terminal protection box, a rubber buckle block is provided on the top of the first terminal protection box, and a buckle ring is provided on the top of the second terminal protection box.

[0011] Furthermore, the first terminal protection box and the second terminal protection box are both made of transparent plastic plates.

[0012] The beneficial effects of the utility model are as follows: a protective shell including a first shell and a second shell is provided on the outside of the transformer body, a plurality of connecting sockets are provided on the end surface of the first storage shell, a plurality of connecting plates are provided on the end surface of the second storage shell, a clamping hole is provided on the connecting plate, a spring cavity is provided in the annular mechanism plate of the first storage shell, a limit plate and a compression spring are provided in the spring cavity, a clamping block slidably connected to the clamping hole is provided on the side of the limit plate, and a pulling wire is connected to the other side of the limit plate, a rotating plate is rotatably connected in the annular groove of the annular mechanism plate, and one end of the pulling wire is connected to the rotating plate, the rotating plate can be rotated to pull the clamping block out of the clamping hole by the pulling wire, and the first shell and the second shell can be separated and disassembled to inspect the transformer body in the protective shell, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a mutual inductor with protection function of the utility model;

[0014] Figure 2 It is a schematic diagram of the exploded structure of the mutual inductor with protection function of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the mutual inductor with protection function of the utility model;

[0016] Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure A;

[0017] Figure 5 This is a schematic diagram of the first shell structure of the mutual inductor with protection function of the utility model;

[0018] Figure 6 It is a schematic diagram of the second shell structure of the mutual inductor with protection function of the utility model.

[0019] The names corresponding to the marks in the figure are:

[0020] 1. Transformer body; 2. Mounting plate; 21. Mounting hole; 3. First shell; 31. Storage shell; 311. Connecting socket; 32. First annular shell; 33. First mounting plate adapter slot; 34. First terminal protection tube; 4. Second shell; 41. Second storage shell; 42. Second annular shell; 43. Second mounting plate adapter slot; 44. Second terminal protection tube; 45. Connecting plate; 451. Clamping hole; 5. Ring mechanism plate; 6. Limiting plate; 7. Compression spring; 8. Clamping block; 9. Pulling wire; 10. Rotating plate; 101. Rotating finger groove; 11. Ball; 12. First terminal protection box; 121. First wire hole; 13. Second terminal protection box; 131. Second wire hole; 14. Rubber buckle block; 15. Buckle. 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 belong to the scope of protection of the utility model.

[0022] Embodiments of the present utility model:

[0023] Embodiment 1

[0024] like Figure 1-Figure 6 As shown, the utility model provides a transformer with a protection function, including a transformer body 1, a mounting plate 2 is arranged at the bottom of the transformer body 1, a mounting hole 21 is opened on the mounting plate 2, a protective shell is arranged on the outer side of the transformer body 1, and the protective shell includes a first shell 3 and a second shell 4, the first shell 3 includes a first storage shell 31, a first annular shell 32 is arranged at the center of the first storage shell 31, and a first mounting plate adapter groove 33 is arranged at the bottom of the first storage shell 31, two first terminal protection tubes 34 are arranged at the top of the first storage shell 31, and a plurality of connection sockets 311 are arranged on the end surface of the first storage shell 31, the second shell 4 includes a second storage shell 41, a second annular shell 42 is arranged at the center of the second storage shell 41, and a second mounting plate adapter groove 43 is arranged at the bottom of the second storage shell 41, two second terminal protection tubes 44 are arranged at the top of the second storage shell 41, and a plurality of connection sockets 311 are arranged on the end surface of the second storage shell 41. The first receiving shell 31 is provided with a ring-shaped mechanism plate 5, and a spring cavity is provided in the ring-shaped mechanism plate 5 at a position corresponding to the connecting socket 311. A limit plate 6 and a compression spring 7 are provided in the spring cavity. A block 8 slidably connected to the hole 451 is provided on the side of the limit plate 6, and a pulling line 9 is connected to the other side of the limit plate 6. An annular groove is provided on the outer ring surface of the ring-shaped mechanism plate 5, and a rotating plate 10 is rotatably connected in the annular groove. A plurality of rotating finger grooves 101 are provided on the movable plate 10, and one end of the pulling wire 9 is connected to the rotating plate 10. When the transformer needs to be disassembled for maintenance, the rotating plate 10 only needs to be rotated, and the rotating rotating plate 10 will pull the pulling wire 9 to pull the card block 8 out of the card hole 451 and pull it back into the spring cavity to release the fixation. Then the connecting plate 45 can be pulled out from the connecting socket 311, the first shell 3 and the second shell 4 are separated, and the protective shell is disassembled to inspect the transformer body 1.

[0025] Embodiment 2

[0026] like Figure 1-Figure 6As shown, on the basis of the first embodiment of the utility model: a plurality of evenly distributed balls 11 are arranged on the rotating plate 10, and ball grooves adapted to the balls 11 are symmetrically opened on the inner side wall of the annular groove. Through such an arrangement, friction can be reduced and rotation is convenient. The side of the block 8 facing the opening of the connecting socket 311 is arranged in an arc-shaped structure. Through such an arrangement, the first shell 3 and the second shell 4 are quickly engaged. The first terminal protection box 12 is hinged at the position corresponding to the first terminal protection tube 34 at the top of the first storage shell 31, and the top of the second storage shell 41 is hinged to the second terminal protection tube 44. A second terminal protection box 13 is hinged at a corresponding position, first wire holes 121 are provided at both ends of the first terminal protection box 12, second wire holes 131 are provided at both ends of the second terminal protection box 13, a rubber buckle block 14 is provided on the top of the first terminal protection box 12, a buckle ring 15 is provided on the top of the second terminal protection box 13, and the first terminal protection box 12 and the second terminal protection box 13 are both made of transparent plastic plates. Through such a setting, the terminal blocks of the transformer body 1 can be protected by the first terminal protection box 12 and the second terminal protection box 13.

Claims

1. A transformer with a protective function, comprising a transformer body (1), wherein a mounting plate (2) is provided at the bottom of the transformer body (1), characterized in that: A protective shell is arranged on the outside of the transformer body (1), and the protective shell comprises a first shell (3) and a second shell (4); the first shell (3) comprises a first storage shell (31); a first annular shell (32) is arranged at the center of the first storage shell (31); a first mounting plate adapting groove (33) is arranged at the bottom of the first storage shell (31); two first terminal protection tubes (34) are arranged at the top of the first storage shell (31); and a plurality of connection sockets (311) are arranged on the end surface of the first storage shell (31); the second shell (4) comprises a second storage shell (41); a second annular shell (42) is arranged at the center of the second storage shell (41); a second mounting plate adapting groove (43) is arranged at the bottom of the second storage shell (41); two second terminal protection tubes (44) are arranged at the top of the second storage shell (41); A plurality of connecting plates (45) slidably connected to the connecting socket (311) are arranged on the end surface of the second storage shell (41), and a clamping hole (451) is provided on the connecting plate (45). An annular mechanism plate (5) is connected to the outer surface of the first storage shell (31), and spring cavities are provided at positions corresponding to the connecting socket (311) in the annular mechanism plate (5), and a limiting plate (6) and a compression spring (7) are provided in the spring cavity. A clamping block (8) slidably connected to the clamping hole (451) is provided on the side of the limiting plate (6), and a pulling wire (9) is connected to the other side of the limiting plate (6). An annular groove is provided on the outer ring surface of the annular mechanism plate (5), and a rotating plate (10) is rotatably connected in the annular groove. The rotating plate (10) is provided with a plurality of rotating finger grooves (101), and one end of the pulling wire (9) is connected to the rotating plate (10).

2. The mutual inductor with protection function according to claim 1, characterized in that: The rotating plate (10) is provided with a plurality of evenly distributed balls (11), and the inner side wall of the annular groove is symmetrically provided with ball grooves adapted to the balls (11).

3. The mutual inductor with protection function according to claim 1, characterized in that: The side surface of the card block (8) facing the opening of the connection socket (311) is arranged in an arc-shaped structure.

4. The mutual inductor with protection function according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting hole (21).

5. The mutual inductor with protection function according to claim 1, characterized in that: A first terminal protection box (12) is hingedly connected to a position on the top of the first storage shell (31) corresponding to the first terminal protection tube (34); a second terminal protection box (13) is hingedly connected to a position on the top of the second storage shell (41) corresponding to the second terminal protection tube (44); first wire holes (121) are provided at both ends of the first terminal protection box (12); second wire holes (131) are provided at both ends of the second terminal protection box (13); a rubber buckle block (14) is provided on the top of the first terminal protection box (12); and a buckle ring (15) is provided on the top of the second terminal protection box (13).

6. The mutual inductor with protection function according to claim 5, characterized in that: The first terminal protection box (12) and the second terminal protection box (13) are both made of transparent plastic plates.

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