CN218826449U

CN218826449U - Magnetic element winding

Info

Publication number: CN218826449U
Application number: CN202223435478.6U
Authority: CN
Inventors: 周胜千; 张奇豪
Original assignee: Sea Sonic Electronics Co Ltd
Current assignee: Sea Sonic Electronics Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-04-07
Anticipated expiration: 2032-12-21

Abstract

A magnetic element winding comprises a plurality of coils which are wound by the same wire, the magnetic element winding does not have a part of an inner coil of the magnetic element winding, and two outlet tail ends of the magnetic element winding are formed by extending the outermost coil of the plurality of coils.

Description

Magnetic element winding

Technical Field

The present invention relates to a magnetic element winding, and more particularly to a magnetic element winding in which two outgoing ends of a winding are extended by a person located on the outermost side of a plurality of coils.

Background

The winding is one of the important components of the magnetic element, and apart from the current implementation in integrated circuits, the winding mainly has two implementations, one of which is directly wound on the bobbin, and the other of which is in the form of a component (coil) participating in the configuration of the magnetic element. In the winding of the winding, a portion of a wire rod close to one end is used for winding a winding frame, the winding is continuously wound in the same direction after the winding is started, when the number of winding turns (namely the number of winding turns) reaches a set value, the continuous winding is stopped, and after the portion of the wire rod is cut off, two ends of the wire rod are used as the ends of two outgoing wires.

However, in the current winding method, one of the two ends of the coil is led out from the inner coil of the winding (as shown in fig. 1, 50), so that the winding has an overlap caused by the adjustment position of the inner coil, and the height of the overlap is at least the wire diameter of the wire, which affects the power density of the magnetic element, and is not in line with the current development trend.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to solve the problem of the subsequent implementation derived from the winding structure of the existing magnetic element.

To achieve the above object, the present invention provides a magnetic element winding, which includes a plurality of coils wound from the same wire. The magnetic element winding does not have a part of an outgoing line from the inner ring of the magnetic element winding, and the two outgoing line ends of the magnetic element winding are formed by extending the outermost one of the coils.

In one embodiment, the wire comprises a metal core and a heat-fusible sheath covering the metal core.

In one embodiment, the magnetic element winding includes a plurality of fixed blocks disposed on the plurality of coils.

In one embodiment, the magnetic element winding comprises at least one adhesive tape wound on the plurality of coils to shape the magnetic element winding.

Through the utility model discloses aforementioned implementation, compare in prior art and have following characteristics: the utility model discloses this magnetic element winding does not possess the part of being qualified for the next round of competitions by this magnetic element winding inner circle, and the two of this magnetic element winding are qualified for the next round of competitions the end and all are located the person in the outside by this a plurality of coils and extend and form utility model. The utility model discloses a structure, this magnetic element winding no longer produce the part that overlaps these a plurality of coils because of the inner circle partial adjustment position of being qualified for the next round of competitions, and no longer influence the power density who uses a magnetic element of this magnetic element winding.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.

Drawings

Fig. 1 is a schematic diagram of a prior art magnetic element winding.

Fig. 2 is a schematic structural diagram of a magnetic element winding according to an embodiment of the present invention.

Fig. 3 is a schematic diagram illustrating steps of a method for forming a magnetic element winding according to an embodiment of the present invention.

Fig. 4 is a schematic diagram (a) illustrating an implementation of a method for forming a magnetic element winding according to an embodiment of the present invention.

Fig. 5 is a schematic diagram (ii) illustrating an implementation of a method for forming a magnetic element winding according to an embodiment of the present invention.

Fig. 6 is a schematic diagram (iii) illustrating an implementation of a method for forming a magnetic element winding according to an embodiment of the present invention.

Fig. 7 is a schematic step diagram illustrating a method for forming a magnetic element winding according to another embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view illustrating a wire used in a magnetic element winding according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of a magnetic element winding according to another embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a magnetic element winding according to yet another embodiment of the present invention.

Wherein the reference numerals

20: magnetic element winding

21: terminal of the outgoing line

22: coil

23: base coil

241: first part

242: the second part

30: method of producing a composite material

31: step one

32: step two

33: step three

34: step four

40: winding frame

41: wire rod

411: metal inner core

412: hot melting outer skin

42: line segment

50: overlapping part

60: fixed block

61: adhesive tape

Detailed Description

The detailed description and technical contents of the present invention are now described with reference to the accompanying drawings as follows:

referring to fig. 2, the present invention provides a magnetic element winding 20, wherein two outgoing ends 21 of the magnetic element winding 20 are formed by extending the outermost one of a plurality of coils 22 included in the magnetic element winding 20, and the plurality of coils 22 are wound from the same wire 41. More specifically, the magnetic element winding 20 of the present invention does not have a portion of the magnetic element winding 20 that is internally tapped, so that the magnetic element winding 20 does not overlap the plurality of coils 22 due to the position adjustment of the internally tapped portion, and the power density of a magnetic element to which the magnetic element winding 20 is applied is not affected. On the other hand, the magnetic element winding 20 of the present invention can be an independent component (as depicted in fig. 1, referred to as a coil cake in the industry) for forming the magnetic element, or the magnetic element winding 20 can be a winding generated in the winding process of a transformer.

Referring to fig. 2, 3 and 4, in order to manufacture the magnetic element winding 20, the present invention also provides a method 30 for forming a magnetic element winding, comprising the following steps:

step one 31, providing a winding frame 40;

step two 32: the wire 41 is used for winding the multi-turn basic coil 23 on the winding frame 40, and the length of each of two tail ends of the wire 41 to the part wound into the plurality of basic coils 23 is greater than the length of the wire 41 wound into the multi-turn coil 22; and

step three 33: the two line segments 42 connected to the two ends of the plurality of basic coils 23 on the wire 41 are respectively continued to wind the multi-turn coil 22 to complete the magnetic element winding 20, the magnetic element winding 20 has the two outgoing line ends 21, and the two outgoing line ends 21 are formed by extending the outermost one of the multi-turn coils 22.

To explain, the bobbin 40 may be selected according to the implementation requirement, and the bobbin 40 may be implemented as a transformer bobbin, or may be separable after the magnetic element winding 20 is manufactured. Alternatively, the wire 41 may be an enameled wire, a multi-layer insulated wire, or the like.

Referring to fig. 3 and 4, in the second step 32, a portion of the wire 41 not belonging to the end is used as a winding position, and further, a length of a segment of the wire 41 remaining after winding is not used as only one of the two wire-out ends 21, and a certain number of turns of winding can still be performed. In one embodiment, during the second step 32, two portions of the wire 41 adjacent to the winding position are used to wind the plurality of base coils 23, and the two portions are wound with different numbers of turns, for example, one of the two portions is wound with one turn, and the other of the two portions is wound with two turns. Moreover, the two portions are inseparable from the wire 41, and the remaining wire segments after the two portions are wound will continue the implementation of the step three 33, that is, after the wire 41 finishes the winding of the plurality of base wires 23, the length of each of the two ends of the wire 41 to the portion wound into the plurality of base coils 23 is greater than the length of the wire 41 to be wound into the plurality of base coils 22, and each of the two ends of the wire 41 to the portion wound into the plurality of base coils 23 is equivalent to the remaining wire segments after the two portions are wound. In addition, during the process of winding the plurality of base coils 23 by the two parts, at least one of the plurality of base coils 23 wound by one of the two parts will be overlapped on at least one of the plurality of base coils 23 wound by the other one of the two parts along the winding frame 40.

Referring back to fig. 3, 5 and 6, after the second step 32 is completed, the third step 33 is performed. The two wire segments 42 (i.e. the remaining wire segments after the two parts are completely wound) connected to the two ends of the plurality of base coils 23 on the wire 41 are respectively used for winding the multi-turn coil 22, in the winding process, the two wire segments 42 are respectively wound with one of the connected base coils 23 as a starting point, and the winding direction is not along the winding frame 40, but is wound in a manner of one turn and one turn. After the winding with a predetermined number of turns is completed, the magnetic element winding 20 is completed, and the two outgoing wire ends 21 of the magnetic element winding 20 are formed by extending the outermost one of the multi-turn coils 22 by the method of the present invention, so as to solve the problems derived from the aforementioned inner outgoing wires. Further, the aforementioned predetermined number of turns does not refer to the total number of turns of the magnetic element winding 20, and the total number of turns of the magnetic element winding 20 is the number of turns of the plurality of base coils 23 plus the number of turns of the plurality of coils 22. In an embodiment, in the third step 33, one of the two line segments 42 is firstly used to wind the multi-turn coil 22 to form a first portion 241, and then the other of the two line segments 42 is used to wind the remaining multi-turn coil 22 based on the first portion 241 to form a second portion 242 overlapping the first portion 241, wherein the two outlet ends 21 are respectively formed by extending the outermost one of the first portion 241 and the second portion 242.

Referring also to fig. 7, in one embodiment, the method 30 for forming the magnetic element winding further includes a fourth step 34: the magnetic element winding 20 is shaped and the bobbin 40 is removed. After step four 34 is performed, the magnetic element winding 20 may participate in the subsequent magnetic element configuration in the component configuration. Referring to fig. 8, in one embodiment, the wire 41 includes a metal core 411 and a heat-fusible sheath 412 covering the metal core 411. The shaping operation is performed by heating the semi-finished product of the magnetic element winding 20 to melt the heat-fusible sheath 412, and cooling to complete the shaping. In addition to the above, the shaping operation can be performed by dispensing or tape winding, the dispensing position can be selected according to the implementation requirement, the dispensing can be as shown in fig. 9, and in the embodiment shown in fig. 9, the magnetic element winding 20 includes a plurality of fixing blocks 60 disposed on the plurality of coils 22. The taping scheme can be as shown in fig. 10. In the embodiment disclosed in fig. 10, the magnetic element winding 20 comprises at least one tape 61 wrapped around the plurality of coils 22 to shape the magnetic element winding 20.

Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.

Claims

1. A magnetic element winding, the magnetic element winding comprising a plurality of coils wound from the same wire, the magnetic element winding characterized by:

the magnetic element winding does not have a part of an outgoing line from the inner ring of the magnetic element winding, and the two outgoing line ends of the magnetic element winding are formed by extending the outermost one of the coils.

2. The magnetic element winding of claim 1, wherein the wire comprises a metal core and a heat fusible outer skin covering the metal core.

3. The magnetic element winding of claim 1, wherein the magnetic element winding comprises a plurality of anchors disposed on the plurality of coils.

4. The windings of claim 1, wherein the windings of magnetic elements comprise at least one tape wound around the plurality of coils to shape the windings of magnetic elements.