Mutual inductor operation indicating device

Abstract

The utility model discloses a mutual inductor operation indicating device which comprises a base, the upper surface of the base is fixedly connected with a lower shell, the inner surface of the lower shell is fixedly connected with a lower fixing ring, the inner surface of the lower fixing ring is fixedly connected with a lower iron core, and the outer surface of the lower iron core is fixedly connected with a silicon steel sheet connecting sleeve. An upper iron core is slidably connected to the inner surface of the silicon steel sheet connecting sleeve, an upper fixing ring is fixedly connected to the outer surface of the upper iron core, an upper shell is fixedly connected to the outer surface of the upper fixing ring, a winding is fixedly connected to the outer surface of the upper iron core, and an S1 binding post is fixedly connected to one end of the winding; and one end, far away from the binding post S1, of the winding is fixedly connected with a binding post S2, and the device can be mounted and dismounted without dismounting a line by arranging a separated structure, so that the time is saved, the running equipment is not influenced, the device is convenient to repair and maintain, and the working efficiency of workers is improved.

Description

Technical Field

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

[0002] The current transformer is composed 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. Therefore, the entire current of the circuit often flows through it. The secondary winding has more turns and is connected in series in the measuring instrument and the protection circuit. When the current transformer is working, its secondary circuit is always closed. Therefore, the impedance of the series coil of the measuring instrument and the protection circuit is very small. The working state of the current transformer is close to a short circuit. The current transformer converts the large current on the primary side into a small current on the secondary side for use. The secondary side cannot be open.

[0003] However, the existing devices are all closed structures. When the device needs to be repaired and maintained, the line must be powered off and dismantled before the device can be removed. This is not only inconvenient for workers to dismantle and install the device, but also affects the normal operation of electrical equipment. After searching, it was found that the technical solution provided by the utility model with application number CN202220444878.4 also has the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a transformer operation indicating device. By setting a separate structure, the device can be flexibly installed and removed without dismantling the line, saving time while not affecting the running equipment, facilitating the repair and maintenance of the device while improving the work efficiency of the workers.

[0005] The utility model also provides a transformer operation indicating device as described above, comprising: a base, the upper surface of the base is fixedly connected to a lower shell, the inner surface of the lower shell is fixedly connected to a lower fixing ring, the inner surface of the lower fixing ring is fixedly connected to a lower iron core, the outer surface of the lower iron core is fixedly connected to a silicon steel sheet connecting sleeve, the inner surface of the silicon steel sheet connecting sleeve is slidably connected to an upper iron core, the outer surface of the upper iron core is fixedly connected to an upper fixing ring, the outer surface of the upper fixing ring is fixedly connected to the upper shell, the outer surface of the upper iron core is fixedly connected to a winding, one end of the winding is fixedly connected to an S1 connection The winding has one end away from the S1 terminal fixedly connected to the S2 terminal, the upper surface of the upper shell is fixedly connected to the terminal seat, the upper surface of the upper shell is fixedly connected to the wire clamping seat, the outer surface of the wire clamping seat is slidably connected to a protective cover, the upper surface of the protective cover is provided with a through hole, and the upper surface of the upper shell is provided with a threaded hole. By setting a separate structure, the device can be flexibly installed and removed without removing the line, which saves time without affecting the running equipment, facilitates the repair and maintenance of the device, and improves the work efficiency of the workers.

[0006] According to the transformer operation indicating device, the inner surface of the wire holder is fixedly connected with a rubber pad, and the inner surface of the protective cover is fixedly connected to the rubber pad, thereby fixing the external wire and preventing damage to the wire.

[0007] According to the transformer operation indicating device, the inner surface of the through hole is slidably connected with a screw, and the outer surface of the screw is threadedly connected to the threaded hole, so as to fix the protective cover and the upper shell together and protect the internal terminal.

[0008] According to the transformer operation indicating device, the inner surface of the protective cover is slidably connected to the wiring seat, and the number of the threaded holes is four and in a rectangular array.

[0009] According to the described mutual inductor operation indicating device, the upper surface of the lower fixed ring is fixedly connected to the silicon steel sheet connecting sleeve, and the outer surface of the silicon steel sheet connecting sleeve is slidably connected to the upper shell body, so that the upper shell body and the lower shell body can be installed and the upper iron core and the lower iron core can be connected at the same time.

[0010] According to the transformer operation indicating device, the upper surface of the terminal block is fixedly connected to the S1 terminal post, and the upper surface of the terminal block is fixedly connected to the S2 terminal post, which facilitates the connection between the wire and the terminal post.

[0011] According to the transformer operation indicating device, the inner surface of the through hole is connected to the threaded hole, and the number of the through holes is four and they are arranged in a rectangular array.

[0012] According to the transformer operation indicating device, the upper surface of the base is provided with mounting holes, and the number of the mounting holes is two and they are distributed on the left and right, so as to facilitate the fixing and installation of the transformer.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of a transformer operation indicating device of the utility model;

[0016] Figure 2 This is an internal structure diagram of a transformer operation indicating device of the utility model;

[0017] Figure 3 This is a cross-sectional view of a transformer operation indicating device of the utility model;

[0018] Figure 4 The utility model is an exploded diagram of a transformer operation indicating device.

[0019] Legend:

[0020] 1. Base; 2. Lower shell; 3. Lower fixing ring; 4. Lower iron core; 5. Silicon steel sheet connecting sleeve; 6. Upper iron core; 7. Upper fixing ring; 8. Upper shell; 9. Winding; 10. S1 terminal; 11. S2 terminal; 12. Terminal block; 13. Wire holder; 14. Protective cover; 15. Through hole; 16. Threaded hole; 17. Rubber pad; 18. Screw; 19. Mounting hole. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The utility model embodiment is a mutual inductor operation indicating device, comprising: a base 1, an upper surface of the base 1 is provided with mounting holes 19, the number of the mounting holes 19 is two and they are distributed on the left and right, the upper surface of the base 1 is fixedly connected with a lower shell 2, the inner surface of the lower shell 2 is fixedly connected with a lower fixing ring 3, the inner surface of the lower fixing ring 3 is fixedly connected with a lower iron core 4, the outer surface of the lower iron core 4 is fixedly connected with a silicon steel sheet connecting sleeve 5, the upper surface of the lower fixing ring 3 is fixedly connected to the silicon steel sheet connecting sleeve 5, the inner surface of the silicon steel sheet connecting sleeve 5 is slidably connected with an upper iron core 6, the outer surface of the upper iron core 6 is fixedly connected with an upper fixing ring 7, the outer surface of the upper fixing ring 7 is fixedly connected with an upper shell 8, the outer surface of the silicon steel sheet connecting sleeve 5 is slidably connected with the upper shell 8, the outer surface of the upper iron core 6 is fixedly connected with a winding 9, one end of the winding 9 is fixedly connected with an S1 terminal 10, and the end of the winding 9 away from the S1 terminal 10 is fixedly connected The S2 terminal 11 is connected, and a terminal seat 12 is fixedly connected to the upper surface of the upper shell 8. The upper surface of the terminal seat 12 is fixedly connected to the S1 terminal 10, and the upper surface of the terminal seat 12 is fixedly connected to the S2 terminal 11. A wire clamping seat 13 is fixedly connected to the upper surface of the upper shell 8, and a rubber pad 17 is fixedly connected to the inner surface of the wire clamping seat 13. A protective cover 14 is slidably connected to the outer surface of the wire clamping seat 13, and the inner surface of the protective cover 14 is slidably connected to the terminal seat 12. The inner surface of the protective cover 14 is fixedly connected to the rubber pad 17. A through hole 15 is provided on the upper surface of the protective cover 14. The number of the through holes 15 is four and they are arranged in a rectangular array. The inner surface of the through hole 15 is slidably connected to a screw 18. A threaded hole 16 is provided on the upper surface of the upper shell 8. The inner surface of the through hole 15 is connected to the threaded hole 16. The outer surface of the screw 18 is threadedly connected to the threaded hole 16. The number of the threaded holes 16 is four and they are arranged in a rectangular array.

[0023] Working principle: install the lower shell 2 at the desired position through the base 1, install the upper shell 8 and the lower shell 2 together along the silicon steel sheet connecting sleeve 5 so that the equipment wire passes through the middle, the silicon steel sheet connecting sleeve 5 will connect the upper iron core 6 and the lower iron core 4 together to form a closed-loop iron core so that it can work normally, and the external ammeter can be connected through the S1 terminal 10 and the S2 terminal 11. When the equipment wire is energized and current passes through, the winding 9 will generate current due to the principle of electromagnetic induction, and the ammeter can produce a reading. The protective cover 14 is fixed to the upper shell 8 by the screw 18. The wire holder 13 and the rubber pad 17 on the protective cover 14 can fix the connecting wire while preventing it from being damaged. When the mutual inductor needs to be removed, it can be removed by simply separating the upper shell 8 from the lower shell 2, without turning off the power to remove the equipment wire.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A transformer operation indicating device, characterized in that: include: A base (1), wherein the upper surface of the base (1) is fixedly connected to a lower shell (2), the inner surface of the lower shell (2) is fixedly connected to a lower fixing ring (3), the inner surface of the lower fixing ring (3) is fixedly connected to a lower iron core (4), the outer surface of the lower iron core (4) is fixedly connected to a silicon steel sheet connecting sleeve (5), the inner surface of the silicon steel sheet connecting sleeve (5) is slidably connected to an upper iron core (6), the outer surface of the upper iron core (6) is fixedly connected to an upper fixing ring (7), the outer surface of the upper fixing ring (7) is fixedly connected to an upper shell (8), and the outer surface of the upper iron core (6) is fixedly connected to an upper fixing ring (7). A winding (9) is fixedly connected to the upper surface of the upper shell (8), one end of the winding (9) is fixedly connected to an S1 terminal (10), one end of the winding (9) away from the S1 terminal (10) is fixedly connected to an S2 terminal (11), the upper surface of the upper shell (8) is fixedly connected to a terminal seat (12), the upper surface of the upper shell (8) is fixedly connected to a wire holder (13), the outer surface of the wire holder (13) is slidably connected to a protective cover (14), the upper surface of the protective cover (14) is provided with a through hole (15), and the upper surface of the upper shell (8) is provided with a threaded hole (16).

2. A transformer operation indicating device according to claim 1, characterized in that: The inner surface of the wire clamping seat (13) is fixedly connected to a rubber pad (17), and the inner surface of the protective cover (14) is fixedly connected to the rubber pad (17).

3. A transformer operation indicating device according to claim 1, characterized in that: The inner surface of the through hole (15) is slidably connected with a screw (18), and the outer surface of the screw (18) is threadedly connected to the threaded hole (16).

4. A transformer operation indicating device according to claim 1, characterized in that: The inner surface of the protective cover (14) is slidably connected to the wiring seat (12), and the number of the threaded holes (16) is four and arranged in a rectangular array.

5. A transformer operation indicating device according to claim 1, characterized in that: The upper surface of the lower fixed ring (3) is fixedly connected to the silicon steel sheet connecting sleeve (5), and the outer surface of the silicon steel sheet connecting sleeve (5) is slidably connected to the upper shell (8).

6. A transformer operation indicating device according to claim 1, characterized in that: The upper surface of the wiring seat (12) is fixedly connected to the S1 wiring post (10), and the upper surface of the wiring seat (12) is fixedly connected to the S2 wiring post (11).

7. A transformer operation indicating device according to claim 1, characterized in that: The inner surface of the through hole (15) is connected to the threaded hole (16), and the number of the through holes (15) is four and they are arranged in a rectangular array.

8. A transformer operation indicating device according to claim 1, characterized in that: The upper surface of the base (1) is provided with mounting holes (19), and the number of the mounting holes (19) is two and they are distributed on the left and right sides.

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