CN219780433U - Coil skeleton and heating coil - Google Patents

Abstract

The utility model relates to a coil framework and a heating coil, wherein the coil framework comprises a main framework and wire groove plates, the main framework is columnar, the wire groove plates are uniformly arranged on the outer wall of the main framework at intervals along the axial direction of the main framework to form wire winding grooves, and the distance between adjacent wire groove plates is the same or smaller than the diameter of an enameled wire to be wound. The enameled wire is in interference fit with the winding groove when wound on the coil skeleton, and whether the enameled wire needs to be wound on the coil skeleton in a single layer or multiple layers, the enameled wire can be fixed, a winding gap is effectively controlled, a winding space is saved, and the space utilization rate is improved; the gaps are reduced, so that the wires are tightly attached, the whole coil is more fastened and reliable, a regular shape is formed, the appearance is more attractive and tidier, displacement looseness of the enameled wire is effectively prevented, and vibration noise of the coil during operation is reduced; the wire slot plate can also separate the coil enamelled wire layers formed by enamelled wires in each layer of wire slot, thereby being beneficial to heat dissipation of the coil.

Description

Coil skeleton and heating coil

Technical Field

The utility model relates to the field of lithium battery heating equipment, in particular to a coil framework and a heating coil.

Background

In the heating work of the lithium battery cell, the traditional mode is to heat the cell by adopting a resistance wire, an electric heating film and the like, the problems of low efficiency and high energy consumption are generally solved, and the cell is heated by adopting an electromagnetic induction heating principle technology, so that the heating technology with high efficiency and low energy consumption is developed at present.

The core component is an electromagnetic induction heating coil, the enameled wire is directly wound on a coil framework, and when the enameled wire is wound in a single layer or a plurality of layers, the winding gap is more random, so that the winding space is wasted, the coil is loose integrally, and the vibration noise of the coil is easy to increase when the coil works, so that improvement is needed in various aspects.

Disclosure of Invention

Accordingly, it is necessary to provide a coil bobbin and a heating coil which reduce the coil gap and the noise.

The present utility model provides a bobbin including:

the main framework is columnar;

the wire groove plates are uniformly arranged at intervals along the axis direction of the main framework on the outer wall of the main framework to form wire grooves;

the distance between adjacent wire slot plates is the same or smaller than the diameter of the enameled wire to be wound.

In one embodiment, the raceway plate is perpendicular to an axis of the main skeleton.

In one embodiment, the wire slot plate is provided with a wire slot penetrating along the axial direction of the main framework.

In one embodiment, the wire chase extends from an outer edge of the wire chase plate to a junction of the wire chase plate and the main frame.

In one embodiment, a plurality of the wire passing grooves are arranged along the axial direction of the main framework.

In one embodiment, the two ends of the main framework are respectively provided with a top plate and a bottom plate, and the wire slot plates are uniformly arranged at intervals between the top plate and the bottom plate.

In one embodiment, the main skeleton is cylindrical or square column; the outline of the outer edge of the line groove plate is round or square.

In one embodiment, the outer edge portion of the wire trough plate is provided with a chamfer.

The utility model also provides a heating coil, which comprises the coil framework, wherein the enameled wire is wound in the winding groove, the winding groove is in interference tight fit with the enamelled wire diameter, and the enameled wire enters the adjacent winding groove through the wire passing groove after the winding is full of a preset number of turns to continue winding until the coil framework is full or the preset total number of turns is reached.

In one embodiment, the enameled wire is extruded and shaped in the wire winding groove by the tension of a wire winding machine.

According to the coil skeleton and the heating coil, the wire winding grooves are formed in the outer wall of the cylindrical main skeleton and are uniformly arranged at intervals along the axial direction of the main skeleton, the width of each wire winding groove, namely the distance between the adjacent wire winding groove plates, is smaller than or equal to the diameter of an enameled wire to be wound, the enameled wire is in interference fit with the wire winding groove when wound on the coil skeleton, and the enameled wire can be fixed no matter whether single-layer winding or multi-layer winding is needed on the coil skeleton, so that the wire winding gap is effectively controlled, the wire winding space is saved, and the space utilization is improved; the gaps are reduced, so that the wires are tightly attached to each other, a regular shape is formed, the appearance is more attractive and tidier, the whole heating coil is more fastened and reliable, displacement looseness of the enameled wire is effectively prevented, and vibration noise of the heating coil during operation is reduced; the wire slot plate can also separate the coil formed by coiling the enamelled wire in each layer of wire slot, thereby being beneficial to heat dissipation of the heating coil.

Drawings

FIG. 1 is a schematic diagram of a coil bobbin according to some embodiments of the present utility model;

FIG. 2 is a front view of a bobbin of some embodiments of the present utility model;

FIG. 3 is a front view of a heating coil according to some embodiments of the present utility model;

fig. 4 is a top view of a bobbin according to some embodiments of the utility model.

Reference numerals:

1. a coil bobbin; 11. a main skeleton; 111. a top plate; 112. a bottom plate; 12. a wire groove plate; 13. a wire winding groove; 14. wire passing grooves; 2. and (5) an enameled wire layer.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 and 2, fig. 1 shows a schematic structural view of a bobbin 1 according to some embodiments of the present utility model, and fig. 2 shows a front view of the bobbin 1 according to some embodiments of the present utility model.

The utility model provides a coil framework 1, wherein the coil framework 1 comprises a main framework 11 and a wire slot plate 12, and the main framework 11 is columnar; the wire groove plates 12 are uniformly arranged at intervals along the axial direction of the main framework 11 on the outer wall of the main framework 11 to form wire winding grooves 13; the distance between the adjacent wire groove plates 12 is the same or smaller than the diameter of the enamel wire to be wound.

The coil skeleton 1 is provided with the wire groove plates 12 uniformly spaced along the axial direction on the outer wall of the cylindrical main skeleton 11, the wire winding grooves 13 are formed between the adjacent wire groove plates 12, the width of the wire winding grooves 13, namely the distance between the adjacent wire groove plates 12, is smaller than or equal to the diameter of the enameled wires to be wound, the enameled wires are in interference fit with the wire winding grooves 13 when wound on the coil skeleton 1, the enameled wires can be fixed no matter whether single-layer winding or multi-layer winding is needed on the coil skeleton 1, the winding gaps are effectively controlled, the winding space is saved, the space utilization is improved, more enameled wires can be scientifically distributed on the coil skeleton 1 with the same volume, the upper limit of heating efficiency is improved, and the productivity is improved; the gaps can be reduced to enable the wires to be tightly attached, so that the coil formed by coiling the enameled wire is formed into a regular shape, the appearance is more attractive and tidier, the whole coil is more fastened and reliable, and displacement loosening of the enameled wire is effectively prevented, so that when the enameled wire vibrates due to the working of the coil, vibration is reduced, and vibration noise generated when the coil works is reduced; the wire groove plates 12 can also separate the coil formed by winding the enamelled wire in each layer of wire winding grooves 13, which is beneficial to the heat dissipation of the heating coil in operation.

In some embodiments, the wire trough plate 12 is perpendicular to the axis of the main frame 11. The enameled wires wound on the main framework 11 can form coils coaxial with the main framework 11 in the winding grooves 13 between the wire groove plates 12, so that the enameled wires are orderly distributed, and the space utilization rate of the main framework 11 is improved.

In some embodiments, the wire groove plate 12 is provided with a wire passing groove 14 penetrating in the axial direction of the main frame 11. After the enamelled wire is wound in one layer of winding groove 13, the enamelled wire enters the adjacent winding groove 13 through the wire passing groove 14, so that the enamelled wire can be continuously wound.

In some embodiments, the wire chase 14 extends from the outer edge of the wire chase plate 12 to where the wire chase plate 12 meets the main frame 11. The enameled wire is wound on the main framework 11, one circle of enameled wire can be wound, a plurality of circles of enameled wires can be wound, the wire passing groove 14 is formed at the joint of the wire groove plate 12 and the main framework 11, when the enameled wire which is required to be wound for a plurality of circles and layers is wound on the main framework 11 and is wound for the first circle on the outer wall of the main framework 11, the layer can be replaced through the wire passing groove 14, the enameled wire which is wound for only one circle in each layer of wire passing groove 13 can be replaced through the wire passing groove 14, and the applicability of the coil framework 1 to the number of layers of different winding circles of the coil is improved.

Referring to fig. 2 and 4, fig. 4 illustrates a top view of a bobbin 1 according to some embodiments of the present utility model. In some embodiments, the plurality of wire passing grooves 14 are arranged along the axial direction of the main frame 11 and are positioned on the same straight line. When the enamelled wire in each layer of winding groove 13 is wound in the adjacent layer of winding groove 13 after the winding is completed, the wire passing and layer changing are carried out at the same vertical position of each layer, so that the neatness and attractiveness of the wound coil can be improved, and the number of turns and the length of the wound enamelled wire can be conveniently calculated during the winding.

In some embodiments, the main frame 11 is provided with a top plate 111 and a bottom plate 112 at both ends thereof, respectively, and the wire groove plates 12 are disposed at uniform intervals between the top plate 111 and the bottom plate 112. The top plate 111 and the bottom plate 112 clamp the wound coil at both ends of the main frame 11 to make the outer shape regular.

In some embodiments, the main skeleton 11 is cylindrical or square column shaped; the contour of the outer edge of the wire chase plate 12 is circular or square. Preferably, when the main frame 11 is cylindrical, the outline of the outer edge of the wire groove plate 12 is circular; when the main frame 11 is square, the outline of the outer edge of the wire groove plate 12 is square. In fig. 1, a coil bobbin 1 in which a main bobbin 11 is cylindrical and the outline of the outer edge of a wire groove plate 12 is circular is shown, and a similar structure can be applied to a square-cylindrical main bobbin 11.

In some embodiments, the outer edge portion of the wire chase plate 12 is provided with a chamfer. The outer edge, namely the periphery part of the wire groove plate 12 is provided with the chamfer, so that the enameled wire can conveniently enter the wire groove 13 along the chamfer part of the wire groove plate 12, and the enameled wire can be prevented from being scratched in the winding process.

Referring to fig. 2 and 3, fig. 3 illustrates a front view of a heating coil according to some embodiments of the present utility model.

The utility model also provides a heating coil, which comprises the coil framework 1, wherein the enameled wire is wound in the winding groove 13, the winding groove 13 is in interference tight fit with the enameled wire, and after the winding is full of a preset number of turns, the enameled wire enters the adjacent winding groove 13 through the wire passing groove 14 to continue winding until the coil framework 1 is full or the preset total number of turns is reached.

In the heating coil, the enameled wire is fixed after being wound under the action of the winding groove 13, compared with the technical means that the winding is stacked randomly and has larger gap due to the fact that only the top plate 111 and the bottom plate 112 are fixed in the center of the traditional technology, the winding gap can be effectively controlled, the winding space is saved, and the space utilization rate is improved; the gap is reduced, so that the wires are tightly attached to each other to form the enameled wire layer 2, a regular shape is formed, the appearance is more attractive and tidier, the whole heating coil is more fastened and reliable, displacement loosening of the enameled wire is effectively prevented, when the heating coil works, the enameled wire can vibrate, the enameled wire is tightly wound and the fixed coil enameled wire layer 2 is obtained through interference fit with the winding groove 13, displacement loosening of the enameled wire can be effectively prevented, and accordingly vibration noise of the heating coil in working is reduced; the wire groove plates 12 can separate the coil wound by enamelled wires in each layer of wire groove 13, and all enamelled wires are not directly and completely wound on the main framework 11 like the conventional technology, but are regularly distributed and gaps are formed between different layers, so that heat dissipation is facilitated when the heating coil works.

In some embodiments, the enamel wire is extruded and shaped into the winding groove 13 by the tension of the winding machine. Because the diameter of enameled wire is less than or equal to the width of wire winding groove 13, enameled wire and wire winding groove 13 are interference fit, need the coiling machine to assist with the tensioning of enameled wire and coiling on main skeleton 11 outer wall to round coiling closely in proper order is laminated, extrudees and forms coil enameled wire layer 2, forms closely firm structure in wire winding groove 13, tightly wraps up, prevents that it is loose.

According to the coil skeleton 1 and the heating coil provided by the utility model, the wire groove plates 12 are uniformly arranged on the outer wall of the columnar main skeleton 11 in the coil skeleton 1 at intervals along the axial direction of the main skeleton 11, the wire winding grooves 13 are formed between the adjacent wire groove plates 12, the width of each wire winding groove 13, namely, the distance between the adjacent wire winding groove plates 12 is smaller than or equal to the diameter of an enameled wire to be wound, the enameled wire is wound in the wire winding groove 13, the chamfered wire groove plates 12 can facilitate the enameled wire to enter the wire winding groove 13, the enameled wire is smoother, the enameled wire is prevented from being scratched, the wire winding groove 13 and the enameled wire are in interference tight fit, the enameled wire is extruded and shaped in the wire winding groove 13 through the tension force of a winding machine, the enameled wire enters the adjacent wire groove 13 through the wire passing groove 14 after the winding is fully scheduled, the enameled wire is continuously wound until the coil skeleton 1 is fully wound or the preset total number of turns is reached, when the enameled wire in each layer of the wire winding groove 13 is wound in the adjacent layer of the wire winding groove 13, the wire is wound in the same vertical position, the wire exchanging layer is performed at the wire exchanging groove 14 after each layer of the wire winding groove plate 12, the coil winding is tidily is improved, the winding coil winding degree can be conveniently achieved, the alternating current can be processed, and the heating field can be conveniently processed after the winding is completed, and the winding coil is completed.

The enameled wire is in interference fit with the winding groove 13 when wound on the coil skeleton 1, and whether the enameled wire needs to be wound on the coil skeleton 1 in a single layer or in multiple layers, the enameled wire can be fixed, a winding gap is effectively controlled, a winding space is saved, and the space utilization rate is improved; the gaps are reduced, so that the wires are tightly attached to each other, a regular shape is formed, the appearance is more attractive and tidier, the whole heating coil is more firm and reliable, the compactness of the winding is improved, displacement looseness of the enameled wire is effectively prevented, and vibration noise of the coil during working is reduced; the wire groove plates 12 can also separate the coil enamelled wire layers 2 formed by winding enamelled wires in each layer of the wire grooves 13, which is beneficial to heat dissipation of coils.

The coil framework 1 and the heating coil can be suitable for large-size high-energy industrial equipment, and the problems of winding space waste and coil whole loosening in the traditional technology are solved, so that the problem of large vibration noise of the coil during coil working is solved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A bobbin (1), characterized by comprising:

a main framework (11), wherein the main framework (11) is columnar;

the wire groove plates (12), a plurality of wire groove plates (12) are uniformly arranged at intervals along the axial direction of the main framework (11) on the outer wall of the main framework (11) to form wire grooves (13);

the distance between adjacent wire slot plates (12) is the same or smaller than the diameter of the enameled wire to be wound.

2. Coil former (1) according to claim 1, characterized in that the wire slot plate (12) is perpendicular to the axis of the main former (11).

3. Coil former (1) according to claim 2, characterized in that the wire slot plate (12) is provided with wire slots (14) penetrating in the axial direction of the main former (11).

4. A coil former (1) according to claim 3, characterized in that the wire-passing groove (14) extends from the outer edge of the wire-groove plate (12) to the junction of the wire-groove plate (12) and the main former (11).

5. Coil former (1) according to claim 4, characterized in that a plurality of the wire-passing grooves (14) are arranged in the axial direction of the main former (11).

6. Coil former (1) according to claim 1, characterized in that the main former (11) is provided with a top plate (111) and a bottom plate (112) at both ends, respectively, the wire slot plates (12) being arranged at uniform intervals between the top plate (111) and the bottom plate (112).

7. Coil former (1) according to claim 1, characterized in that the main former (11) is cylindrical or square; the outline of the outer edge of the wire slot plate (12) is round or square.

8. Coil former (1) according to claim 1, characterized in that the outer edge portion of the wire slot plate (12) is provided with a chamfer.

9. A heating coil, characterized by comprising a coil skeleton (1) according to any one of claims 1-8, wherein an enameled wire is wound in the winding groove (13), the winding groove (13) is tightly matched with the enameled wire in an interference manner, and after the winding is full of a preset number of turns, the enameled wire enters the adjacent winding groove (13) through the wire passing groove (14) to continue winding until the coil skeleton (1) is full or the preset total number of turns is reached.

10. The heating coil according to claim 9, characterized in that the enamel wire is press-set in the winding slot (13) by means of the tension of the winding machine.