CN218447489U - Vertical winding coil structure - Google Patents

Abstract

The utility model belongs to the technical field of inductors, and discloses a vertical winding coil structure which comprises at least one coil body, wherein the coil body comprises a plurality of layers of winding coils arranged along a first direction, and adjacent winding coils are arranged in a staggered manner; when the coil body is provided with a plurality of coils, the coil bodies are formed by winding one conducting wire. The utility model provides a found solenoid structure, adjacent around establishing crisscross setting each other between the coil, increased wire and external area of contact, increased peripheral heat radiating area promptly, improved solenoid body's whole radiating effect, especially when the inductor adopts the forced air cooling heat dissipation, solenoid body can fully dispel the heat, and then when the selection material, can select the less and big wire on the large side of current density in cross-section line footpath to reduce found solenoid structure's cost. In addition, when the solenoid body is provided with a plurality ofly, a plurality of solenoid bodies are formed by a wire lap winding, make things convenient for the wiring.

Description

Vertical winding coil structure

Technical Field

The utility model relates to an inductor technical field especially relates to a found winding package structure.

Background

The inductor generally comprises a framework, a coil, a shielding case, packaging materials, a core column and the like, and is mainly applied to various switching power supplies such as a photovoltaic energy storage inverter, a direct current charging pile module and a UPS.

In the prior art, a coil of the inductor is generally in a vertical winding coil structure, a line layer and an interlayer of the structure are completely overlapped, heat dissipation between the layers is not facilitated, and once the current density is large during material selection, the inductor has the risk of temperature rise. In addition, in recent years, the price of wire wrapping wires, particularly copper wires, is high, great pressure is added to the cost of an inductor, and how to optimize the vertical winding wire wrapping structure has a good heat dissipation effect, and meanwhile, the problem that the cost of the wire wrapping wires is reduced is the problem which needs to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a found solenoid structure of winding can effectively reduce the intensification problem of inductor.

To achieve the purpose, the utility model adopts the following technical proposal:

a vertical winding coil structure comprises at least one coil body, wherein the coil body comprises a plurality of layers of winding coils arranged along a first direction, and the adjacent winding coils are arranged in a staggered manner;

when the coil body is provided with a plurality of, a plurality of coil bodies are formed by winding a conducting wire.

Optionally, the plurality of layers of winding coils are arranged in a staggered manner in a ring shape.

Optionally, one side of the winding coil protrudes out of the outer edge of the adjacent winding coil.

Optionally, the inner edge of one edge of the outer edge of the adjacent wound coil protruding from the wound coil coincides with the outer edge of the adjacent wound coil along the first direction.

Optionally, the wire is a flat wire.

Optionally, the cross-sectional shape of the flat wire is rectangular or elliptical.

Optionally, when the cross-sectional shape of the flat wire is rectangular, the bending angle inner diameter R1 of the flat wire is 4-8 times the width B of the flat wire.

Optionally, when the cross-sectional shape of the flat conductive wire is an ellipse, the inner diameter R1 of the bending angle of the flat conductive wire is half of the inner diameter R2 of the coil body.

Optionally, each layer of the winding coil is of a single-turn structure.

Optionally, when the number of the coil bodies is two, the two coil bodies are flush with each other along a second direction, and the second direction is perpendicular to the first direction.

The utility model has the advantages that:

the utility model provides a found solenoid structure, adjacent around establishing crisscross setting each other between the coil, increased wire and external area of contact, increased peripheral heat radiating area promptly, improved solenoid body's whole radiating effect, especially when the inductor adopts the forced air cooling heat dissipation, solenoid body can fully dispel the heat, and then when the selection material, can select the less and big wire on the large side of current density in cross-section line footpath to reduce found solenoid structure's cost. In addition, when the solenoid body is provided with a plurality ofly, a plurality of solenoid bodies are formed by a wire lap winding, make things convenient for the wiring.

Drawings

Fig. 1 is a schematic view of a vertical winding package structure provided by the present invention;

fig. 2 is another view angle structure diagram of the vertical winding package structure provided by the present invention;

fig. 3 is a side view of the vertical winding package structure provided by the present invention;

fig. 4 is a top view of the vertical winding package structure provided by the present invention.

In the figure:

100. a coil body; 200. winding a coil; 300. and (4) conducting wires.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used based on the orientations and positional relationships shown in the drawings, and are only for convenience of description and simplification of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Referring to fig. 1 to 4, the embodiment provides a vertical winding structure, including at least one winding body 100, where the winding body 100 includes a plurality of layers of wound coils 200 arranged along a first direction, and adjacent wound coils 200 are arranged in a staggered manner; when the coil body 100 is provided in plural, the plural coil bodies 100 are each formed by winding one conductive wire 300.

In this embodiment, adjacent winding coils 200 are staggered with each other, so that the contact area between the wires 300 and the outside is increased, that is, the peripheral heat dissipation area is increased, the overall heat dissipation effect of the coil body 100 is improved, especially when the inductor adopts air cooling heat dissipation, the coil body 100 can sufficiently dissipate heat, and further when materials are selected, the wires 300 with smaller cross-sectional wire diameter and larger current density can be selected, thereby reducing the cost of the vertical winding coil structure. In addition, when the coil body 100 is provided in plurality, the plurality of coil bodies 100 are formed by winding one conducting wire 300, so that wiring is facilitated.

Preferably, the material of the conductive wire 300 may be, but is not limited to, a metal copper material.

In the present embodiment, as shown in fig. 1 to 2, the plurality of layers of wound coils 200 are disposed in a circular staggered manner, so that the coil body 100 has a small volume and a stable structure, and the heat dissipation area can be further effectively increased, thereby improving the heat dissipation performance of the coil body 100.

Furthermore, each layer of winding coil 200 is of a single-coil structure, the distributed capacitance of the single-layer winding is small, and the anti-electromagnetic interference effect is good. Further, the shape and size of the winding coil 200 of each layer may be the same or different, and are not limited herein.

Specifically, one side of the winding coil 200 protrudes from the outer edge of the adjacent winding coil 200, so that the coil body 100 has high structural stability and a large heat dissipation area, and further the coil body 100 can fully dissipate heat.

Further, an inner edge of the outer edge of the adjacent wound coil 200 protruding from the wound coil 200 may coincide with an outer edge of the adjacent wound coil 200 along the first direction, so as to maximize an area of the outer edge of the adjacent wound coil 200 protruding from the wound coil 200, thereby effectively enhancing the heat dissipation capability of the coil body 100.

Further, except for the side of the outer edge of the winding coil 200 protruding out of the adjacent winding coil 200, the inner edges of the other sides of the winding coil 200 can be attached to the core column of the inductor, so that the space is reasonably utilized, the utilization rate of the coil body 100 is high, the use length of the lead 300 is saved, the cost is reduced, and the volume of the whole inductor is further reduced.

Further, the coil body 100 can be, but is not limited to, wound evenly through a winding device, mechanically produced, and has good consistency.

In this embodiment, the winding coil 200 may be in a rectangular ring shape, the rectangular ring shape has good structural consistency with the winding coil 200, and the coil body 100 further has the advantages of small overall volume, good structural stability, large heat dissipation area, easy production, and being beneficial to bending the lead 300. Of course, the shape of the winding coil 200 may be in other forms of ring, and is not limited herein.

Preferably, the stand coil structure includes two coil bodies 100.

In this embodiment, with reference to fig. 3, when there are two coil bodies 100, the two coil bodies 100 are arranged flush along the second direction, and the second direction is perpendicular to the first direction, so that the vertical winding coil has a compact structure, and is convenient to install and arrange. Of course, the relative positions of the two coil bodies 100 may be set to other structural forms according to actual requirements, and are not limited herein.

Specifically, when the solenoid body 100 is provided with two, the winding direction of two solenoid bodies 100 can be the same, also can be different, can customize according to actual demand in order to make things convenient for the wiring.

Similarly, when the coil body 100 is provided with a plurality of coil bodies 100, the winding direction of each coil body 100 may be the same or different, and is determined according to the actual requirement.

Specifically, as shown in fig. 3, when the plurality of coil bodies 100 are provided, the coils 200 wound in the adjacent coil bodies 100 protrude from the outer edges of the adjacent coils 200 and are staggered, so that the overall structure of the vertical coil structure is more compact, and the heat dissipation space between the adjacent coil bodies 100 is more favorable for air circulation and heat dissipation.

In the present embodiment, as shown in fig. 4, the conductive wire 300 is a flat conductive wire, which can bear a larger current density and has a larger cross-sectional area than the conventional conductive wire 300, so as to be more beneficial to the overall heat dissipation of the coil body 100.

Specifically, the cross section of the flat wire is rectangular or elliptical, and the rectangular or elliptical flat wire is more favorable for the lap winding molding of the coil body 100, and the cost is effectively reduced. Furthermore, the choice of flat wire is determined by the core leg structure of the inductor. Of course, the cross-sectional shape of the flat wire may be other shapes, and is not limited herein.

Further, when the cross section of the flat wire is rectangular, the bending angle inner diameter R1 of the flat wire is 4-8 times of the width B of the flat wire; when the cross-sectional shape of the flat wire is an ellipse, the inner diameter R1 of the bending angle of the flat wire is half of the inner diameter R2 of the coil body 100. In the present embodiment, when the flat conductive wire is bent and bent laterally, the inner side wall of the flat conductive wire will bear a large bending stress, and the thickness of the flat conductive wire is small, which results in a large bending stress borne by a unit area, the inner side of the flat conductive wire will deform and become thick due to extrusion, and the outer side of the flat conductive wire is extended and thinned, so as to limit the size of the bending angle inner diameter R1 within the above range, so that the thickness of the bent flat conductive wire will not differ much from the original thickness, and the forming of the coil body 100 after the flat conductive wire is wound.

Furthermore, when the cross section of the flat wire is rectangular, a chamfer is arranged between adjacent side faces of the flat wire, so that thickness change of the flat wire caused by bending is effectively reduced.

In this embodiment, the surface of the wire 300 is coated with an insulating paint layer, so that the wound coils 200 are insulated from each other, thereby improving the stability of the inductor, and the insulating paint layer has the advantages of wear resistance, corrosion resistance, moisture resistance, and the like, thereby prolonging the service life of the coil body 100.

Adopt the vertical winding package structure of above-mentioned scheme design, compare with the correlation technique, have following advantage: the coil body 100 is formed by winding a flat conducting wire in an overlapping mode, so that the coil body 100 can bear higher current density, the structural stability of the coil body 100 is good, the conducting wire 300 with a smaller section and a larger current density can be selected, and the cost of a vertically wound coil structure is reduced; the cross-sectional area of the flat wire is large, so that the surface area of the outer edge of the wound coil 200 protruding out of the adjacent wound coil 200 is large, the coil body 100 has a large heat dissipation area, and the overall heat dissipation effect of the coil body 100 is effectively improved; the plurality of layers of winding coils 200 are arranged in an annular staggered manner, and the inner edge of one edge of the outer edge of the adjacent winding coil 200, which protrudes from the winding coil 200, can coincide with the outer edge of the adjacent winding coil 200 along a first direction, so that the heat dissipation area of the coil body 100 is increased to the maximum extent while the overall structure of the coil body 100 is small in size and stable in structure.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The vertical winding coil structure is characterized by comprising at least one coil body (100), wherein the coil body (100) comprises a plurality of layers of winding coils (200) arranged along a first direction, and the adjacent winding coils (200) are arranged in a staggered manner;

when the coil body (100) is provided with a plurality of, a plurality of coil bodies (100) are formed by winding one conducting wire (300).

2. The edgewise coil structure according to claim 1, wherein the plurality of layers of the wound coils (200) are arranged in a circular staggered arrangement.

3. A vertical winding package structure according to claim 1, wherein one side of the winding coil (200) is disposed to protrude from an outer edge of the adjacent winding coil (200).

4. The vertical winding package structure according to claim 3, wherein an inner edge of the outer edge of the adjacent winding coil (200) protruding from the winding coil (200) coincides with an outer edge of the adjacent winding coil (200) along the first direction.

5. The edgewise coil structure according to claim 1, wherein the wire (300) is a flat wire.

6. The edgewise coil structure of claim 5, wherein the cross-sectional shape of the flat wire is rectangular or elliptical.

7. The edgewise coil structure according to claim 6, wherein when the cross-sectional shape of the flat wire is rectangular, the inner diameter R1 of the bend angle of the flat wire is 4 to 8 times the width B of the flat wire.

8. A vertical winding coil structure according to claim 6, wherein when the cross-sectional shape of the flat conductive wire is an ellipse, the inner diameter R1 of the bending angle of the flat conductive wire is half of the inner diameter R2 of the coil body (100).

9. A vertical winding package structure according to claim 1, characterized in that each layer of the wound coil (200) is a single-turn structure.

10. A vertical winding packet structure according to claim 1, wherein when there are two packet bodies (100), the two packet bodies (100) are arranged flush along a second direction, the second direction being perpendicular to the first direction.

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