High-power flat wire vertically-wound air core inductor

Abstract

The utility model discloses a high-power flat wire vertically-wound hollow inductor which comprises a coil assembly, a mounting assembly and a connector bar, and the coil assembly is formed by spirally and stereoscopically winding a plurality of strands of hollow wires; the installation assembly comprises insulation fixing frames located at the two ends of the coil assembly, and the line bank is located on the outer sides of the two insulation fixing frames and electrically connected with the coil assembly. The coil assembly is formed by spirally and stereoscopically winding the multiple strands of hollow wires, the effective heat dissipation area of the coil can be increased by adopting the multiple strands of hollow wires, meanwhile, the size and weight of the reactor are reduced, the proximity effect can be effectively reduced by vertically winding the multiple strands of the coil, the electrical performance of a product is improved, and the coil is directly fixed through the insulating fixing frame for the coil. The manufacturing and use efficiency is improved; and the device is suitable for full-automatic equipment operation.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a high-power flat wire vertically wound hollow inductor. Background Art

[0002] An inductor is a device that works on the principle of electromagnetic induction. When current flows through a wire, a certain electromagnetic field is generated around the wire, and the wire itself in this electromagnetic field will induce the wire within the range of this electromagnetic field.

[0003] At present, high-power inductors need additional air ducts to solve the heat dissipation problem, which increases the product size, weight and manufacturing cost, and makes it difficult to use in inverters with space constraints. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a high-power flat wire vertically wound hollow inductor, which has strong heat dissipation capability and can be connected in series and used in multiple groups. The production can be automated by winding processing, effectively improving manufacturing efficiency.

[0005] The technical solution adopted by the utility model is: a high-power flat wire vertically wound hollow inductor, comprising a coil assembly, a mounting assembly and a wiring row; the coil assembly is formed by spirally three-dimensionally winding a plurality of hollow wires; the mounting assembly comprises insulating fixing frames located at both ends of the coil assembly, and the insulating fixing frames are connected by fasteners; the wiring row is located outside the two insulating fixing frames and is electrically connected to the coil assembly.

[0006] In the technical solution, the coil assembly of the inductor structure is wound in three dimensions by spiral winding of multiple strands of hollow wire. The use of multiple strands of hollow wire can increase the effective heat dissipation area of ​​the coil, while reducing the volume and weight of the reactor. The vertical winding of multiple strands of the coil can effectively reduce the proximity effect and improve the electrical performance of the product. The coil is directly fixed by an insulating coil fixing frame, which improves the manufacturing and use efficiency; it can be suitable for fully automated equipment operation.

[0007] Preferably, the coil assembly is formed by three-dimensionally winding multiple strands of hollow flat wires.

[0008] Preferably, a mounting hole for a fastener to pass through is provided in the middle of the outer side of the insulating fixing frame.

[0009] Preferably, the fastener is made of non-magnetic material.

[0010] Preferably, the terminal block is an aluminum terminal block, and the terminal block is connected to the starting wire and the tail wire of the coil assembly by welding.

[0011] Preferably, the surfaces of the welding positions of the wiring row and the coil assembly are insulated.

[0012] Preferably, a fixing portion is provided on a side of the wiring block, and the fixing portion is fixedly connected to the insulating fixing frame.

[0013] The beneficial effects of the utility model are:

[0014] 1. The coil assembly of the utility model is a hollow spiral structure, which reduces the weight of the reactor; the coil adopts a multi-strand flat wire vertical winding process to increase the effective heat dissipation area of ​​the coil, and can also effectively reduce the proximity effect and improve the electrical performance of the product.

[0015] 2. The coil provided in the utility model is fully automatically wound, and the coil size is flexible and adjustable, which can meet the needs of various installation spaces, is suitable for fully automated equipment operation, and improves production efficiency.

[0016] 3. In the utility model, the coil assembly is directly fixed by an insulating frame without the need for additional conversion parts, which can improve manufacturing and use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 The three-dimensional structure of the high-power flat wire vertically wound hollow inductor provided in the embodiment of the utility model Figure 1 .

[0019] Figure 2 The three-dimensional structure of the high-power flat wire vertically wound hollow inductor provided in the embodiment of the utility model Figure 2 .

[0020] Reference numerals: coil assembly 1, insulating fixing frame 2, fastener 3, wiring block 4. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0022] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0023] like Figure 1 and Figure 2As shown, a specific embodiment of the utility model provides a high-power flat wire vertically wound hollow inductor, which is used to solve the problem of suppressing parallel circulating current of the inverter, and can be installed in a space-compact wall-mounted inverter. This type of inductor structure has good heat dissipation performance and electrical performance, and a high degree of production automation; it specifically includes a coil assembly 1, an installation assembly and a terminal block 4; the coil assembly 1 is formed by spirally winding multiple strands of hollow wire; the installation assembly includes insulating fixing frames 2 located at both ends of the coil assembly, and the insulating fixing frames 2 are connected by fasteners 3; the terminal block 4 is located outside the two insulating fixing frames 2 and is electrically connected to the coil assembly.

[0024] like Figure 1 and Figure 2 As shown, in this embodiment, the coil assembly 1 of the inductor structure is wound in three dimensions by spiral winding of multiple strands of hollow wire. The use of multiple strands of hollow wire can increase the effective heat dissipation area of ​​the coil, while reducing the volume and weight of the reactor. The coil is directly fixed by the coil insulating fixing frame 2, which improves the manufacturing and use efficiency; it can be suitable for fully automated equipment operation. In production applications, the coil assembly 1 is wound in three dimensions by multiple strands of hollow flat wire; the use of a flat wire structure can reduce the proximity effect of the coil, and the product has better performance. In production applications, the coil assembly 1 is wound in a fully automated manner, and the size of the coil can be flexibly adjusted as needed, thereby meeting the needs of various installation spaces.

[0025] like Figure 1 and Figure 2 As shown, in order to facilitate fastening of the insulating fixing frame 2 when it is installed at both ends of the coil assembly 1, a mounting hole for the fastener 3 to pass through is provided in the middle of the outer side of the insulating fixing frame 2 in this embodiment. The fastener 3 adopts a rod-shaped structure. After the fastener 3 passes through the mounting hole, it can be fixed by directly tightening. The fastener 3 can be installed in a threaded fixing manner; in order to ensure the performance of the coil, the fastener 3 in this embodiment is made of non-magnetic conductive material.

[0026] As mentioned above, the terminal block 4 needs to be electrically connected to the coil assembly 1. In this embodiment, the terminal block 4 is an aluminum terminal block 4, and the terminal block 4 is welded to the starting wire and the tail wire of the coil assembly 1. At the same time, the surface of the welding position between the terminal block 4 and the coil assembly 1 is insulated; in production applications, the welding position can preferably be fully insulated with insulating tape.

[0027] like Figure 1 and Figure 2 As shown, in order to fix the terminal block 4 on the outside of the insulating fixing frame 2, this embodiment provides a fixing portion on the side of the terminal block 4, and the fixing portion is fixedly connected to the insulating fixing frame 2. During production, the terminal block 4 can be fastened to the insulating fixing frame using a bolt structure.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A high-power flat wire vertically wound hollow inductor, characterized in that: It comprises a coil assembly (1), a mounting assembly and a wiring block (4); The coil assembly (1) is formed by spirally winding a plurality of hollow wires in three dimensions; The mounting assembly comprises insulating fixing frames (2) located at both ends of the coil assembly (1), and the insulating fixing frames (2) are connected via fasteners (3); The wiring row (4) is located outside the two insulating fixing frames (2) and is electrically connected to the coil assembly (1).

2. The high-power flat wire vertically wound hollow inductor according to claim 1 is characterized in that: The coil assembly (1) is formed by three-dimensionally winding a plurality of hollow flat wires.

3. The high-power flat wire vertically wound hollow inductor according to claim 1 is characterized in that: A mounting hole for the fastener (3) to pass through is provided in the middle of the outer side of the insulating fixing frame (2).

4. The high-power flat wire vertically wound hollow inductor according to claim 1 is characterized in that: The fastener (3) is made of non-magnetic conductive material.

5. The high-power flat wire vertically wound hollow inductor according to claim 1 is characterized in that: The terminal block (4) is an aluminum terminal block (4), and the terminal block (4) is connected to the starting wire and the tail wire of the coil assembly (1) by welding.

6. The high-power flat wire vertically wound hollow inductor according to claim 5 is characterized in that: The surfaces of the welding positions of the wiring row (4) and the coil assembly (1) are insulated.

7. The high-power flat wire vertically wound hollow inductor according to claim 1 is characterized in that: A fixing portion is provided on the side of the wiring block (4), and the fixing portion is fixedly connected to the insulating fixing frame (2).

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