CN219892024U - Coupling inductance and battery circuit - Google Patents

Abstract

The utility model discloses a coupling inductance and a battery circuit, wherein the coupling inductance comprises: the winding direction of the second coil is opposite to the winding direction of the first coil, and at least one part of the second coil is overlapped with the first coil so as to form at least three accommodating spaces; the magnetic cores are respectively accommodated in at least three accommodating spaces. The utility model makes the whole surface area and air contact area larger, reduces the whole volume and height and improves the heat dissipation effect.

Description

Coupling inductance and battery circuit

Technical Field

The utility model relates to the technical field of inductors, in particular to a coupling inductor and a battery circuit.

Background

At present, the coupling inductor is widely applied in the technical field of power electronics. The coupling inductor is adopted in the power electronic converter, so that the dynamic performance and efficiency of the power electronic converter can be obviously improved, and the switching frequency of output can be improved; in the related art, the magnetic core obtained by combining the cuboid block-shaped magnetic blocks of the conventional coupling inductor is generally wound by adopting a flat wire, so that the contact area between the whole magnetic core and air is small, and the heat dissipation effect of the magnetic core is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. To this end, an object of the utility model is to propose a coupling inductance comprising:

a first coil;

a second coil wound in a direction opposite to a winding direction of the first coil, and at least a portion of the second coil is overlapped with the first coil to form at least three accommodation spaces;

and the magnetic cores are respectively accommodated in at least three accommodating spaces.

Preferably, the first coil includes a first wound portion and a first stacked portion integrally formed, the first stacked portion extending outwardly from the first wound portion, and the first stacked portion being configured to be disposed at a distance from each other.

Preferably, the second coil includes a second wound portion and a second stacked portion integrally formed, the first stacked portion extending outwardly from the first wound portion, and the second stacked portion being configured to be disposed at a distance from each other, and the second stacked portion being interposed and stacked with the first stacked portion.

Preferably, the inner diameter of the first overlapping portion is the same as the inner diameter of the second overlapping portion, and the inner diameter of the first wound portion is the same as the inner diameter of the wound portion.

Preferably, the first and second overlapping portions have an inner diameter of 20mm-25mm x 20mm-25mm, and the first and second winding portions have an inner diameter of 20mm-25mm x 56mm-60mm.

Preferably, the magnetic core is obtained by combining a plurality of magnetic blocks.

Preferably, the first coil and the second coil are flat wires and are wound on the magnetic core.

Preferably, the cross section of the magnetic core is rectangular.

Another object of the present utility model is to provide a battery circuit including the coupling inductor.

The scheme of the utility model at least comprises the following beneficial effects:

according to the coupling inductor provided by the utility model, at least one part of the first coil and the second coil are overlapped together to form at least three accommodating spaces, so that the magnetic core is assembled in the at least three accommodating spaces to obtain the coupling inductor, the whole surface area is larger than the air contact area, the whole volume and the whole height are reduced, and the heat dissipation effect is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a coupling inductor provided in an embodiment of the present utility model;

fig. 2 is a schematic structural view of a first coil and a second coil provided in an embodiment of the present utility model;

fig. 3 is a schematic structural view of a first coil provided in an embodiment of the present utility model;

fig. 4 is a schematic structural view of a second coil provided in an embodiment of the present utility model.

Reference numerals illustrate:

10. a first coil; 101. a first winding part; 102. a first overlapping portion; 20. a second coil; 201. a second winding part; 202. a second overlapping portion; 30. a magnetic core; 40. an accommodation space.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are exemplary and intended to illustrate the present utility model and should not be construed as limiting the utility model, and all other embodiments, based on the embodiments of the present utility model, which may be obtained by persons of ordinary skill in the art without inventive effort, are within the scope of the present utility model.

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", "circumferential", "radial", 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 simplify 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 one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly 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 connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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 "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The coupling inductor and the battery circuit according to the embodiment of the present utility model are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, a coupling inductor provided in an embodiment of the present utility model includes: the first coil 10, the second coil 20 and the magnetic core 30, the winding direction of the second coil 20 is opposite to the winding direction of the first coil 10, and at least a part of the second coil 20 is overlapped with the first coil 10 to form at least three accommodating spaces 40; the magnetic cores 30 are respectively accommodated in at least three accommodation spaces 40.

Wherein the first coil 10 and the second coil 20 are flat wires and vertically wound on the magnetic core 30, and the magnetic core 30 has a rectangular cross section, when assembled, the first coil 10 can be wound clockwise, the second coil 20 can be wound counterclockwise, and after the winding is completed, the first coil 10 and the second coil 20 can be assembled, so that at least a part of the first coil 10 and the second coil 20 are overlapped, and the magnetic core 30 is assembled to obtain the coupling inductance; it is understood that the magnetic core 30 is formed by combining a plurality of magnetic blocks, and the magnetic blocks may be made of nanocrystalline materials or the like.

According to the coupling inductor provided by the utility model, at least one part of the first coil 10 and the second coil 20 can be overlapped together to form at least three accommodating spaces 40, so that the magnetic core 30 is assembled in the at least three accommodating spaces 40 to obtain the coupling inductor, the whole surface area and the air contact area are larger, the whole volume and the whole height are reduced, and the heat dissipation effect is improved.

Referring to fig. 3 and 4, the first coil 10 includes a first wound portion 101 and a first stacked portion 102 integrally formed, the first stacked portion 102 extending outwardly from the first wound portion 101, and the first stacked portions 102 being configured to be disposed at a distance from each other; further, the second coil 20 includes a second wound portion 201 and a second stacked portion 202 integrally formed, the first stacked portion 102 extends outwardly from the first wound portion 101, and the second stacked portion 202 is configured to be disposed at a distance from each other, and the second stacked portion 202 and the first stacked portion 102 are stacked with each other in an interposed manner.

In the present embodiment, after the first stacking portion 102 and the second stacking portion 202 are stacked on each other, the number of layers of the first stacking portion 102 and the second stacking portion 202 is the same as the first winding portion 101 and the second winding portion 201, so that when the three magnetic cores 30 are vertically wound on the magnetic cores 30, the number of coils of the three magnetic cores 30 can be made to be uniform, and thus the overall volume and cost can be reduced, and the assembly and the manufacturing process are simpler and more convenient; it can be appreciated that the first coil 10 and the second coil 20 can be wound according to the requirement of the inductor for corresponding turns during winding, and then different requirements can be satisfied during assembling.

Further, the inner diameter of the first stacking portion 102 is the same as the inner diameter of the second stacking portion 202, and the inner diameter of the first winding portion 101 is the same as the inner diameter of the second winding portion 201; wherein the inner diameters of the first and second overlapping portions 102 and 202 are 20mm to 25mm×20mm to 25mm, and the inner diameters of the first and second wound portions 101 and 201 are 20mm to 25mm×56mm to 60mm.

In this embodiment, the cross section of the magnetic core 30 is rectangular, so after the first coil 10 and the second coil 20 are wound, the accommodating space 40 can be provided for the magnetic core 30 to be assembled therein, that is, the inner diameters of the first winding portion 101 and the second winding portion 201 correspond to the length and the width of the accommodating space 40, the inner diameters of the first stacking portion 102 and the second stacking portion 202 can be 20mm×20mm, the inner diameters of the first winding portion 101 and the second winding portion 201 can be 20mm×56mm, and then after the first winding portion 101 and the second winding portion 201 are assembled, the first stacking portion 102 and the second stacking portion 202 are overlapped together, thereby assembling the magnetic core 30 again, the overall structure is simpler, and the manufacturing cost is reduced.

The battery circuit provided by the embodiment of the utility model comprises the coupling inductor. The battery circuit may be applied to a fuel cell, and may employ the above-mentioned coupling inductance, which is formed by stacking at least a portion of the first coil 10 and the second coil 20 together to form at least three accommodating spaces 40, thereby assembling the magnetic core 30 in the at least three accommodating spaces 40 to obtain the coupling inductance, so that the overall surface area and the air contact area are larger, the overall volume and the height are reduced, and the heat dissipation effect thereof is improved.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (9)

1. A coupled inductor, comprising:

a first coil;

a second coil wound in a direction opposite to a winding direction of the first coil, and at least a portion of the second coil is overlapped with the first coil to form at least three accommodation spaces;

and the magnetic cores are respectively accommodated in at least three accommodating spaces.

2. The coupled inductor of claim 1, wherein the first coil comprises an integrally formed first wound portion and a first stacked portion, the first stacked portion extending outwardly from the first wound portion, and the first stacked portion being configured to be disposed in spaced relation to one another.

3. The coupled inductor of claim 2, wherein the second coil includes integrally formed second and second windings, the first and second windings extend outwardly from the first winding, the second and second windings are configured to be spaced apart from one another, and the second and first windings are in mating engagement with one another.

4. The coupled inductor of claim 3, wherein an inner diameter of the first overlap portion is the same as an inner diameter of the second overlap portion, and an inner diameter of the first winding portion is the same as an inner diameter of the second winding portion.

5. A coupled inductor according to claim 3, wherein the first and second overlapped portions have an inner diameter of 20mm-25mm x 20mm-25mm, and the first and second wound portions have an inner diameter of 20mm-25mm x 56mm-60mm.

6. The coupled inductor of claim 1, wherein the magnetic core is a combination of a plurality of magnetic blocks.

7. The coupled inductor of claim 1, wherein the first coil and the second coil are flat wires and are wound on the core.

8. The coupled inductor of claim 1, wherein the magnetic core is rectangular in cross-section.

9. A battery circuit comprising a coupling inductance according to any one of claims 1 to 8.