Anti-interference mutual inductor
By setting up a shield cover, shielding ring and conductive cloth in the transformer, the existing transformers have poor shielding effect and insufficient safety performance, and a more stable and safe output is achieved.
Patent Information
- Application Number
- CN202420719389.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-08
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-08
AI Technical Summary
The existing transformers have poor shielding effect, are easily disturbed by external signals, and have poor safety performance, which makes them prone to failures and damage personal safety.
An anti-interference transformer is designed to enhance the electromagnetic shielding effect by setting a shield cover and a shielding ring inside the housing, placing a coil, and an insulating layer and an anti-interference layer on the inner wall of the housing, including a conductive cloth.
Effectively anti-interference, ensures the stable output of the transformer, and improves the safety of the transformer and ensures personal safety.
Smart Images
Figure CN222637030U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mutual inductors, in particular to an anti-interference mutual inductor. Background Art
[0002] The main function of a transformer is to change the voltage and current in a circuit, that is, to convert high voltage and large current into moderate low voltage and small current, which enables standardized and miniaturized operation of measuring instruments, protection systems, and automatic control systems. The transformer also plays an isolating role, which can isolate the measuring equipment and protection system from the high voltage power supply, thereby ensuring the safety of personnel and equipment. Transformers can be divided into two categories: current transformers and voltage transformers. Current transformers are used to convert large currents into small currents, while voltage transformers are used to convert high voltages into low voltages. Both work based on the principle of electromagnetic induction, and when used, it is necessary to ensure that the secondary side circuit is not closed to avoid danger.
[0003] The prior art has the following problems:
[0004] 1. The existing transformer has poor shielding effect and is easily interfered by external signals, which affects the output of the transformer;
[0005] 2. The existing transformers have poor safety performance and are prone to failure, which may endanger personal safety. Utility Model Content
[0006] In view of the deficiencies in the prior art, the utility model provides an anti-interference mutual inductor to solve the existing problems.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-interference mutual inductor, comprising a mounting plate, a circular hole is arranged on the mounting plate, a support column is arranged on the top of the mounting plate, a terminal is arranged on one side of the support column, a shell is arranged on the top of the support column, a boss is arranged on the top of the shell, and a mutual inductance component is arranged inside the shell.
[0008] As a preferred technical solution of the utility model, circular holes are symmetrically opened at both ends of the mounting plate, a support column is fixedly connected to the top of the mounting plate, and two groups of wiring terminals are arranged on one side of the support column.
[0009] As a preferred technical solution of the utility model, the shell includes a core hole, an insulating layer and an anti-interference layer, and a core hole is opened in the middle of the shell.
[0010] As a preferred technical solution of the utility model, an insulating layer is fixedly connected to the inner wall of the shell, and the insulating layer is epoxy resin. An anti-interference layer is fixedly connected to the outside of the insulating layer, and the anti-interference layer is conductive cloth.
[0011] As a preferred technical solution of the utility model, the mutual inductance component includes a shielding cover, a coil and a shielding ring. The shielding cover is arranged inside the shell, and the coil is arranged on the inner wall of the shielding cover.
[0012] As a preferred technical solution of the utility model, a shielding ring is arranged at the bottom of the shielding cover, and a shielding ring is arranged at the top of the coil.
[0013] Compared with the prior art, the utility model provides an anti-interference mutual inductor, which has the following beneficial effects:
[0014] 1. This anti-interference mutual inductor, by setting a mutual inductance component, the coil is placed in a shielding cover, and shielding rings are provided on both sides of the shielding cover and the coil, so as to enhance the electromagnetic shielding effect of the mutual inductor, effectively resist interference, and thus achieve stable output;
[0015] 2. This anti-interference mutual inductor is provided with an insulating layer and an anti-interference layer. The insulating layer is epoxy resin. The epoxy resin has good electrical insulation performance, high breakdown voltage and excellent insulation performance. The anti-interference layer is conductive cloth, which can shield electromagnetic radiation and electromagnetic interference generated by high-frequency electronic devices. It not only further improves the anti-interference performance and is not affected by external interference, but also improves the safety of the mutual inductor and ensures personal safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of an anti-interference mutual inductor of the utility model;
[0017] Figure 2 This is a schematic diagram of the housing structure of the utility model;
[0018] Figure 3 This is a cross-sectional view of the shell of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the mutual inductance component of the utility model.
[0020] In the figure: 1. mounting plate; 2. round hole; 3. support column; 4. terminal; 5. shell; 501. through hole; 502. insulation layer; 503. anti-interference layer; 6. boss; 7. mutual inductance component; 701. shielding cover; 702. coil; 703. shielding ring. 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 1-4 In this embodiment: an anti-interference mutual inductor includes a mounting plate 1, a circular hole 2 is arranged on the mounting plate 1, a support column 3 is arranged on the top of the mounting plate 1, a terminal 4 is arranged on one side of the support column 3, a shell 5 is arranged on the top of the support column 3, a boss 6 is arranged on the top of the shell 5, and a mutual inductance component 7 is arranged inside the shell 5.
[0023] In this embodiment, circular holes 2 are symmetrically opened at both ends of the mounting plate 1, a support column 3 is fixedly connected to the top of the mounting plate 1, and two sets of terminal terminals 4 are arranged on one side of the support column 3; the shell 5 includes a through hole 501, an insulating layer 502 and an anti-interference layer 503, and a through hole 501 is opened in the middle of the shell 5; an insulating layer 502 is fixedly connected to the inner wall of the shell 5, and the insulating layer 502 is epoxy resin, and an anti-interference layer 503 is fixedly connected to the outside of the insulating layer 502, and the anti-interference layer 503 is conductive cloth. The epoxy resin has good electrical insulation performance and has high impact The voltage breakdown and excellent insulation performance improve the safety of the mutual inductor. The conductive cloth can shield electromagnetic radiation and electromagnetic interference generated by high-frequency electronic devices, thereby improving the anti-interference performance. The mutual inductance component 7 includes a shielding cover 701, a coil 702 and a shielding ring 703. The shielding cover 701 is arranged inside the shell 5, and the coil 702 is arranged on the inner wall of the shielding cover 701. The shielding ring 703 is arranged at the bottom of the shielding cover 701, and the shielding ring 703 is arranged on the top of the coil 702, which strengthens the electromagnetic shielding effect of the mutual inductor and can effectively resist interference.
[0024] The working principle and use process of the utility model are as follows: the operator fixes the mounting plate 1 with a bolt through the circular hole 2 to complete the installation of the mutual inductor. A coil 702 is arranged inside the shell 5, and the coil 702 is placed in the shielding cover 701. Shielding rings 703 are arranged on both sides of the shielding cover 701 and the coil 702, which enhances the electromagnetic shielding effect of the mutual inductor and can effectively resist interference, thereby achieving stable output. An insulating layer 502 is arranged on the inner wall of the shell 5, and the insulating layer 502 is epoxy resin. The epoxy resin has good electrical insulation performance, high breakdown voltage and excellent insulation performance, which improves the safety of the mutual inductor and ensures personal safety. An anti-interference layer 503 is arranged on the inner side of the insulating layer 502, and the anti-interference layer 503 is conductive cloth, which can shield electromagnetic radiation and electromagnetic interference generated by high-frequency electronic devices, and further improve the anti-interference performance.
[0025] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An anti-interference mutual inductor, characterized in that: The invention comprises a mounting plate (1), wherein a circular hole (2) is arranged on the mounting plate (1), a supporting column (3) is arranged on the top of the mounting plate (1), a wiring terminal (4) is arranged on one side of the supporting column (3), a shell (5) is arranged on the top of the supporting column (3), a boss (6) is arranged on the top of the shell (5), and a mutual inductance component (7) is arranged inside the shell (5).
2. The anti-interference mutual inductor according to claim 1, characterized in that: Circular holes (2) are symmetrically provided at both ends of the mounting plate (1); a support column (3) is fixedly connected to the top of the mounting plate (1); and two groups of wiring terminals (4) are provided on one side of the support column (3).
3. The anti-interference mutual inductor according to claim 1, characterized in that: The shell (5) comprises a through hole (501), an insulating layer (502) and an anti-interference layer (503), and a through hole (501) is provided in the middle of the shell (5).
4. The anti-interference mutual inductor according to claim 3, characterized in that: An insulating layer (502) is fixedly connected to the inner wall of the shell (5), and the insulating layer (502) is epoxy resin. An anti-interference layer (503) is fixedly connected to the outside of the insulating layer (502), and the anti-interference layer (503) is conductive cloth.
5. The anti-interference mutual inductor according to claim 1, characterized in that: The mutual inductance component (7) comprises a shielding cover (701), a coil (702) and a shielding ring (703); the shielding cover (701) is arranged inside the housing (5), and the coil (702) is arranged on the inner wall of the shielding cover (701).
6. The anti-interference mutual inductor according to claim 5, characterized in that: A shielding ring (703) is provided at the bottom of the shielding cover (701), and a shielding ring (703) is provided at the top of the coil (702).