Ultrahigh-voltage insulation inductor

Abstract

The utility model provides an ultra-high voltage insulation inductor. The winding coil is arranged in the shell, and an enameled coil is adopted as the winding coil; the flow magnet comprises magnetic powder and colloid, the colloid covers the magnetic powder, and the magnetic powder is filled in the shell; by arranging the enameled wire of which the effective value of the insulating property of the winding coil is greater than 4.0 MV / m and coating the magnetic powder with the colloid, the magnetic powder has good voltage endurance capability, the magnetic powder is prevented from being broken down by high voltage, and by utilizing the double-insulation design of the winding coil and the magnetic fluid, the reliability of the magnetic fluid is improved. Meanwhile, the heat dissipation structure is arranged outside the shell, the heat dissipation efficiency of the ultrahigh-voltage insulation inductor is improved, and then the insulation performance of the winding coil is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical component equipment, and in particular to an ultra-high voltage insulating inductor. Background Art

[0002] An inductor, also known as a choke, reactor, or dynamic reactor, is a component that converts electrical energy into magnetic energy and stores it. As a key electronic component, inductors are widely used in the design and operation of various electronic circuits and are indispensable for realizing most circuit functions. An inductor's structure is similar to a transformer, but with only one winding. It possesses a certain inductance to resist changes in current. If no current flows through the inductor, it will attempt to block current flow when the circuit is connected. If current flows through the inductor, it will attempt to maintain the current when the circuit is disconnected.

[0003] In the prior art, the insulation performance of the magnet in the inductor is average. When the inductor is used in high-power and high-current electrical appliances, the magnet of the inductor is easily broken down by high voltage. After the magnet is broken down, a short circuit occurs with the conductor, causing the inductor to fail. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present application provides an ultra-high voltage insulating inductor.

[0005] The present application discloses an ultra-high voltage insulated inductor comprising: a shell, a winding coil and a flux magnet. The winding coil is arranged in the shell and is an enameled coil. The flux magnet comprises magnetic powder and colloid. The colloid is coated on the magnetic powder, and the magnetic powder is filled in the shell. A heat dissipation structure is provided on the peripheral wall of the shell.

[0006] Preferably, the magnetic powder size is 200-400 mesh.

[0007] Preferably, the magnetic powder is iron-aluminum-silicon magnetic powder.

[0008] Preferably, the colloid is a synthetic resin glue.

[0009] Preferably, the winding coil includes an enameled rectangular wire, an insulating layer is provided outside the enameled rectangular wire, and the insulating layer is coated on the enameled rectangular wire.

[0010] Preferably, the insulating layer is made of epoxy resin.

[0011] Preferably, the heat dissipation structure includes heat dissipation fins, and a plurality of heat dissipation fins are arranged at intervals on the peripheral wall of the shell.

[0012] Preferably, the plurality of heat sinks are parallel to each other.

[0013] The beneficial effects of the present application are as follows: by providing an enameled wire with an effective value of insulation performance greater than 4.0MV / m for the winding coil, and by coating the magnetic powder with colloid, the magnetic powder has good pressure resistance, thereby preventing the magnetic powder from being broken down by high voltage. By utilizing the double insulation design of the winding coil and the magnetic fluid, the inductor can be used in high-voltage and high-current electrical appliances. At the same time, a heat dissipation structure is provided outside the shell, which improves the heat dissipation efficiency of the ultra-high voltage insulated inductor, thereby improving the insulation performance of the winding coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 A three-dimensional diagram of the ultra-high voltage insulated inductor with a partially hidden housing in the embodiment;

[0016] Figure 2 A cross-sectional view of a flow magnet in an embodiment;

[0017] Figure 3 2 is a cross-sectional view of a winding coil in an embodiment.

[0018] Reference numerals:

[0019] 1-shell; 2-winding coil; 3-fluid magnet

[0020] 11- heat dissipation structure;

[0021] 21- enameled rectangular wire; 22- insulation layer;

[0022] 31-Magnetic powder; 32-Colloid. DETAILED DESCRIPTION

[0023] The following diagrams illustrate various embodiments of the present application. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present application. In other words, in some embodiments of the present application, these practical details are not essential. Furthermore, to simplify the drawings, some conventional structures and components are depicted in a simplified schematic manner.

[0024] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in this application, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or ranking, nor are they used to limit this application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] In order to further understand the application content, features and effects of this application, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0027] See also Figure 1 , Figure 1 This is a three-dimensional diagram of the ultra-high voltage insulated inductor with part of the shell hidden. The ultra-high voltage insulated inductor in this example includes a shell 1, a winding coil 2 and a flux magnet 3. The shell 1 is used to carry the winding coil 2 and the flux magnet 3. The winding coil 2 is arranged in the shell 1, has multiple turns, and its two ends extend out of the shell 1. The flux magnet 3 is filled in the shell 1, which fixes the winding coil 2.

[0028] Please also refer to Figure 2 and Figure 3 , Figure 2 is a cross-sectional view of the fluid magnet, Figure 3 It is a cross-sectional view of the winding coil, in which the winding coil 2 is arranged in the shell 1, and the winding coil 2 adopts an enameled coil, the fluid magnet 3 includes magnetic powder 31 and colloid 32, the colloid 32 is coated on the magnetic powder 31 under a stirring process, the magnetic powder 31 is filled in the shell 1, and the fluid magnet 3 is also arranged in the shell 1. The fluid magnet 3 and the winding coil 2 in the shell 1 are die-cast through a die-casting process, so that the fluid magnet 3 and the winding coil 2 are die-cast into an integrated structure; a heat dissipation structure 11 is provided on the peripheral wall of the shell 1, and the heat dissipation structure 11 is a heat sink provided on the outer surface of the shell 1, and the heat sink and the shell 1 are integrally formed.

[0029] The ultra-high voltage insulated inductor in this example is used in high-power ultra-high voltage generators. When used, the winding coil 2 is welded to the welding pad. By setting the enameled wire with an effective value of insulation performance of the winding coil 2 greater than 4.0MV / m, and coating the magnetic powder 31 with a colloid 32, the magnetic powder 31 has good pressure resistance and prevents the magnetic powder 31 from being broken down by high voltage. The double insulation design of the winding coil 2 and the magnetic fluid enables the inductor to be used in high-voltage and high-current electrical appliances. At the same time, a heat dissipation structure 11 is provided outside the shell 1 to improve the heat dissipation efficiency of the ultra-high voltage insulated inductor, thereby improving the insulation performance of the winding coil 2.

[0030] Furthermore, the size of the magnetic powder 31 is 200-400 mesh.

[0031] Specifically, the diameter of the magnetic powder 31 with a size of 200-400 mesh is approximately between 20um and 100um. The magnetic powder 31 with a minimum diameter of not less than 400 mesh is used to ensure that the magnetic powder 31 has basic insulation performance. The magnetic powder 31 with a maximum diameter of not more than 200 mesh is used to make the magnetic powder 31 uniform in the shell 1, reducing the mutual friction between the magnetic powders 31, thereby avoiding the destruction of the outer layer colloid 32 of the magnetic powder 31.

[0032] Furthermore, the magnetic powder 31 is made of iron-aluminum-silicon magnetic powder 31. Iron-aluminum-silicon powder is easy to magnetize and demagnetize, and has a high magnetic permeability, which can play a good role in gathering magnetic lines of force.

[0033] Furthermore, the colloid 32 is a synthetic resin glue.

[0034] By stirring the synthetic resin glue into the magnetic powder 31 , the synthetic resin glue can be coated on the outside of the magnetic powder 31 , thereby making the magnetic powder 31 have beneficial insulation properties. The good toughness of the synthetic resin glue can keep the colloid 32 completely coated on the outside of the magnetic powder 31 .

[0035] Furthermore, the winding coil 2 includes an enameled rectangular wire 21 . An insulating layer 22 is provided outside the enameled rectangular wire 21 . The insulating layer 22 covers the enameled rectangular wire 21 . Specifically, the insulating layer 22 is made of epoxy resin.

[0036] Furthermore, the heat dissipation structure 11 includes heat dissipation fins. A plurality of heat dissipation fins are spaced apart on the peripheral wall of the housing 1 and are parallel to each other.

[0037] By arranging a heat sink outside the housing 1 , the heat generated in the ultra-high voltage insulating inductor working chamber can be reduced, and effective temperature reduction can ensure the insulation performance of the winding coil 2 .

[0038] In summary, by setting the winding coil 2 with an enameled wire having an effective value of insulation performance greater than 4.0MV / m, and by coating the magnetic powder 31 with a colloid 32, the magnetic powder 31 has good pressure resistance, thereby preventing the magnetic powder 31 from being broken down by high voltage. By utilizing the double insulation design of the winding coil 2 and the magnetic fluid, the inductor can be used in high-voltage and high-current electrical appliances. At the same time, a heat dissipation structure 11 is provided outside the shell 1, which improves the heat dissipation efficiency of the ultra-high voltage insulating inductor, thereby improving the insulation performance of the winding coil 2.

[0039] The above is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. An ultra-high voltage insulating inductor, characterized in that: include: A shell (1), a winding coil (2) and a flux magnet (3), wherein the winding coil (2) is arranged in the shell (1) and the winding coil (2) is an enameled coil; the flux magnet (3) comprises magnetic powder (31) and colloid (32), the colloid (32) is coated on the magnetic powder (31), and the magnetic powder (31) is filled in the shell (1); and a heat dissipation structure (11) is provided on the peripheral wall of the shell (1).

2. The ultra-high voltage insulated inductor according to claim 1, wherein: The size of the magnetic powder (31) is 200-400 mesh.

3. The ultra-high voltage insulated inductor according to claim 1, wherein: The magnetic powder (31) is iron-aluminum-silicon magnetic powder (31).

4. The ultra-high voltage insulated inductor according to claim 1, wherein: The colloid (32) is a synthetic resin glue.

5. The ultra-high voltage insulated inductor according to claim 1, wherein: The winding coil (2) comprises an enameled flat wire (21), an insulating layer (22) is provided outside the enameled flat wire (21), and the insulating layer (22) is coated on the enameled flat wire (21).

6. The ultra-high voltage insulated inductor according to claim 5, characterized in that: The insulating layer (22) is made of epoxy resin.

7. The ultra-high voltage insulated inductor according to claim 1, wherein: The heat dissipation structure (11) comprises heat dissipation fins, and a plurality of the heat dissipation fins are arranged at intervals on the peripheral wall of the housing (1).

8. The ultra-high voltage insulated inductor according to claim 7, characterized in that: The plurality of heat sinks are parallel to each other.

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