CN215417810U

CN215417810U - Inductance skeleton, inductor and electronic device

Info

Publication number: CN215417810U
Application number: CN202121739023.6U
Authority: CN
Inventors: 胡东; 王红敏; 张锋; 王伟红
Original assignee: SHENZHEN JINGQUANHUA ELECTRONICS CO LTD
Current assignee: SHENZHEN JINGQUANHUA ELECTRONICS CO LTD; Shenzhen University
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-04
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses an inductance framework, an inductor and an electronic device, wherein the inductance framework comprises two framework plug-in units, each framework plug-in unit comprises a framework base used for placing a bottom magnetic core and a plurality of winding groups consisting of hollow columns, the hollow columns of the two framework plug-in units form a hollow cavity used for placing a middle magnetic core and winding columns used for winding, and the intersected ends of the hollow columns are provided with plug-in structures matched with each other. The utility model realizes the flexible assembly of the framework through the two framework plug-in units, reduces the production design of the mould and lowers the cost.

Description

Inductance skeleton, inductor and electronic device

Technical Field

The utility model relates to the technical field of inductors, in particular to an inductance framework, an inductor and an electronic device.

Background

Inductors are electrical devices that are widely used in society. The inductance framework, also called inductance bobbin, is the supporting subject in the inductance, and the hollow area of the winding part is used for fixing the magnetic core of the inductance, and the winding part provides the space for winding the coil. Taking the PFC inductor as an example, the conventional inductor framework mainly adopts an integrated framework structure, so that different dies need to be designed for winding frameworks with different height requirements, and the production cost of the dies is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that different molds need to be generated when the inductance framework is required to be at different heights, so that the production cost is increased, and the inductance framework, the inductor and the electronic device are provided aiming at the defects of the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:

the utility model provides an inductance skeleton, inductance skeleton includes two skeleton plug-in components, every skeleton plug-in components are including the skeleton base that is used for placing the bottom magnetic core to and a plurality of is by the winding group that the cavity post is constituteed, two the cavity post of skeleton plug-in components forms the cavity that is used for placing middle magnetic core and is used for wire-wound wrapping post, the crossing tip of cavity post is equipped with the grafting structure of mutually supporting.

When the number of the hollow columns of each framework plug-in is greater than 1, the same winding column comprises a first hollow column and a second hollow column, wherein a convex block is arranged at the end part of the first hollow column, and an engaging opening engaged with the convex block is arranged at the end part of the second hollow column;

when the two framework plug-ins are plugged, the lug of each framework plug-in is plugged and connected with the matching structure of the other framework plug-in.

The inductance skeleton, wherein, the height of first hollow post is greater than or equal to the height of second hollow post.

The inductance skeleton, wherein, the bottom surface of cavity post is fillet rectangle.

The inductance skeleton, wherein, the skeleton base includes the bottom plate, and the bottom plate to with the baffle that the opposite direction of cavity post extended formation.

The inductance skeleton is provided with the bottom magnetic cores, and the number of the bottom magnetic cores is the same as that of the winding groups;

when the number of the winding groups is more than 1, the baffle comprises a side wall baffle connected with the edge of the base and a middle baffle used for limiting the movement of the bottom magnetic core.

The inductance skeleton is characterized in that for each winding group, the side wall baffle comprises a first baffle arranged opposite to the middle baffle, a second baffle used for limiting the movement of the bottom magnetic core, and a third baffle used for limiting the distance between the winding groups.

The inductance framework is characterized in that a V-shaped structure is formed between the third baffles.

An inductor, includes magnetic core, coil to and as above the inductance skeleton, the magnetic core set up in the cavity, the coil twines on the cavity post.

An electronic device comprising an inductor as described above, the inductor being mounted in the electronic device.

Has the advantages that: compared with the prior art, the utility model provides an inductance framework, an inductor and an electronic device, wherein the inductance framework is composed of two framework plug-in units, each framework plug-in unit comprises a framework base and a winding group, each winding column is composed of a hollow column, and one end of each hollow column is provided with a plug-in structure, so that the framework plug-in units can be mutually matched through the plug-in structures to form the integral inductance framework. Because the inductance framework is formed by splicing two framework plug-in units, the inductance frameworks with different heights can be obtained by changing the height of the combined framework plug-in units.

Drawings

Fig. 1 is a schematic structural diagram of the inductance skeleton according to the present invention, where the number of winding groups is 1.

Fig. 2 is a cross-sectional view of the inductance skeleton according to the present invention, where the number of winding groups is 1.

Fig. 3 is a side view of the inductance skeleton according to the present invention, in which the number of winding groups is 1.

Fig. 4 is a schematic structural diagram of the inductance skeleton according to the present invention, in which the number of winding groups is greater than 1.

Fig. 5 is a structural bottom view of the inductance skeleton according to the present invention, when the number of winding groups is greater than 1.

The meanings marked in the drawings are as follows:

100, winding groups; 110, a hollow column; 111, a bump; 112, fitting the opening; 113, a first hollow column; 114, a second hollow column; 200, a framework base; 210, a base plate; 220, a baffle plate; 221, an intermediate baffle; 222, sidewall baffles; 222-a, a first baffle; 222-B, a second baffle; 222-C, a third baffle.

Detailed Description

The present invention provides an inductor framework, and in order to make the objects, technical solutions, and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Research shows that different molds need to be generated when the inductance framework is required to be at different heights, and the production cost is increased.

The following description of the embodiments will further explain the present invention by referring to the figures.

The present embodiment provides an inductor including a magnetic core, a coil, and an inductor skeleton, which is applied to an electronic device (not shown). The magnetic core includes middle magnetic core and bottom magnetic core, middle magnetic core setting with the middle cavity of inductance skeleton, the bottom magnetic core sets up in inductance skeleton's upper and lower position. The coil is wound through a hollow post 110 of the former that forms an intermediate cavity.

The inductor bobbin is made of an insulating material, and in the embodiment, the inductor bobbin comprises two bobbin inserts. As shown in fig. 1, each bobbin insert includes a bobbin base 200 and a winding set 100. The bobbin base 200 is fixedly connected to the winding group 100, and the bobbin base 200 is used for stabilizing the winding group 100 and providing a placement space for the bottom magnetic core. The winding set 100 is composed of a plurality of hollow posts 110, the interiors of the hollow posts 110 are hollow, when two skeleton inserts are matched with each other, the two hollow posts 110 are connected to form a hollow cavity for placing a magnetic core and a winding post for winding, and the exteriors of the hollow posts 110 are used for winding coils. One end of the hollow column 110 is connected to the frame base 200, and the other end is provided with a part of the insertion structure. When the frame plug-in components are plugged, the hollow columns 110 intersect, and the plug-in structures arranged at the ends of the two intersecting ends are matched with each other to form a complete plug-in structure.

As shown in fig. 1 and 3, the skeletal base 200 includes a base plate 210, and a baffle 220. The baffle 220 is connected to the base, which is formed by extending the base in a direction opposite to the hollow column 110. The baffle 220 includes at least a sidewall baffle 222 connected to the base edge.

The inserting structure can adopt the combination of a male spigot and a female spigot, the combination of a groove and a convex groove and the like. Other types of plug structures can also be applied to the present embodiment, and for convenience of description, a combination of the male and female spigots is used for the following description.

When the number of the hollow posts 110 of the winding groups 100 is 1, that is, only one hollow post 110 is provided in one winding group 100, the hollow post 110 on one bobbin insert is provided with a male spigot, and the hollow post 110 on the other bobbin insert is provided with a female spigot. The two are in plug-in fit through the male spigot and the female spigot to obtain the inductance framework.

When the number of the hollow columns 110 is greater than 1, a plurality of hollow columns 110 are included in one winding column. In a first implementation manner of this embodiment, the hollow column 110 on the same skeleton plug-in unit is divided into a first hollow column 113, a projection 111 at one end of the first hollow column, and an engagement opening 112 engaged with the projection 111 is provided at one end of a second hollow column 114 on another skeleton plug-in unit. In the present embodiment, the protrusion 111 is a protrusion of the male seam allowance and the matching opening 112 is a notch of the female seam allowance.

In this solution, the shape of the skeleton insert is different, so that two sets of molds need to be designed during production. In addition, for the framework plug-ins with different shapes, management needs to be carried out respectively, and the management cost is increased. Meanwhile, the assembly mode is equivalent to that the male spigot or the female spigot is arranged on the same side, so that the assembly mode has weak binding force and is easy to separate.

Therefore, in the second implementation manner of the present embodiment, as shown in fig. 1 and fig. 2, taking the number of the hollow pillars 110 as 2 as an example, as shown in fig. 1, the same winding pillar includes two hollow pillars 110, the hollow pillar 110 provided with the male end is the first hollow pillar 113113, and the hollow pillar 110 provided with the female end is the second hollow pillar 114.

In a second implementation, the shapes of the two skeleton inserts may be identical, so that only one set of mold is needed for generation, thereby saving the cost of the skeleton insert mold and the management cost. In addition, the public tang of this scheme sets up at the different sides with female tang, consequently, the binding capacity is stronger after the assembly, more is difficult for deviating from.

Further, when the first hollow column 113 is inserted into the second hollow column 114, a gap exists between the complete columns formed by the first hollow column 113 and the second hollow column 114. The first hollow column 113 provided with the male end is higher than the second hollow column 114 in appearance, and in order to concentrate the pressure of plugging in the middle area, in the embodiment, the height of the first hollow column 113 is greater than or equal to that of the second hollow column 114. Especially when the difference in height between the first hollow column 113 and the second hollow column 114 is smaller than the height of the male luer, the pressure can be effectively concentrated in the middle area.

In addition, in the present embodiment, the bottom surface of the hollow column 110 may have a circular shape, a rectangular shape, or the like. However, in order to adapt to the conventional magnetic core, the bottom surface of the hollow column 110 is rounded and rectangular, so that the middle magnetic core can be effectively accommodated and fixed.

The above scheme is described with one winding group 100 as an example. However, as the range of functions of the electric device becomes wider, the plurality of winding groups 100 may be operated in cooperation. When there are a plurality of winding posts, as shown in fig. 4, the plurality of winding posts are arranged longitudinally. The number of bottom cores placed in one bobbin base 200 is the same as that of the winding set 100. In fig. 4, 3 winding posts are provided, and the number of bottom cores corresponding to the skeleton plug-in is 3. However, if there are a plurality of bottoms, the positions of the bottom cores are likely to change when the outside world shakes because the cores cannot be individually restricted. Therefore, in the present embodiment, when there are a plurality of winding groups 100, the barrier 220 further includes an intermediate barrier 221 defining a bottom magnetic core corresponding to each winding. The middle baffle 221 may be a ring-shaped middle baffle 221 formed by arranging a protrusion on the bottom plate 210, or as shown in fig. 4, a partition is arranged between the winding groups 100 as the middle baffle 221 to limit the movement of the bottom magnetic core corresponding to each winding post.

Further, since each hollow post 110 is to be wound by a coil, a fixed distance is maintained between the hollow posts 110 in the same winding group 100, but the distance between each post is also limited between the posts to ensure that the coil can be wound normally, and the base should be provided with some marks to limit the size of the coil and avoid the coil of the post from being squeezed. Accordingly, sidewall baffles 222 in this embodiment include a first baffle 222-A, a second baffle 222-B, and a third baffle 222-C. For each winding group 100, the first baffle 222-a corresponding to the winding group 100 is disposed opposite to the middle baffle 221 corresponding to the winding group 100, that is, the baffle corresponding to the other winding group 100 away from the sidewall baffle 222 corresponding to the winding group 100. If the winding post is between winding posts, such as the second row of winding sets 100 in fig. 5, the winding set 100 does not have a corresponding first flap 222-a. The second barrier 222-B is a barrier for further restricting the movement of the magnetic core on the basis of the intermediate barrier 221. As shown in fig. 5, the second baffle 222-B is a cambered baffle, and the moving range of the magnetic core is limited to be within a range of a cambered surface through the cambered surface. Since the windings 100 are spaced apart from each other, the sidewall spacer 222 further includes a third spacer 222-C, the third spacer 222-C connects the middle spacer 221 and the second spacer 222-B, and the third spacer 222-C widens the distance between the windings 100, so that the space for the coil is more abundant. Further, third baffle 222-C forms a V-like included angle therebetween. Meanwhile, since the sidewall barrier 222 is connected to the edge of the bottom plate 210, the sidewall barrier 222 positioned at both sides of the bottom plate 210 has a plurality of V-shaped recesses, and the size range of the coil can be intuitively sensed when the coil is wound.

The utility model also provides an electronic device (not shown) comprising an inductor as described above.

It should be emphasized that the above-described embodiments are merely preferred embodiments of the utility model, rather than limiting in any way, and that any simple modifications, equivalent variations or modifications made to the above-described embodiments, based on the technical spirit of the utility model, are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an inductance skeleton, its characterized in that, inductance skeleton includes two skeleton plug-ins, every the skeleton plug-in includes the skeleton base that is used for placing the bottom magnetic core to and a plurality of comprises the wire winding group of well cavity post, two the well cavity post formation of skeleton plug-in is used for placing the cavity of middle magnetic core and is used for the wire-wound wrapping post, the crossing tip of well cavity post is equipped with the grafting structure of mutually supporting.

2. The inductance skeleton of claim 1, wherein when the number of the hollow columns of each skeleton plug-in unit is greater than 1, the same winding column comprises a first hollow column and a second hollow column, wherein a protrusion is disposed at an end of the first hollow column, and a fitting opening engaged with the protrusion is disposed at an end of the second hollow column;

when the two framework plug-ins are plugged, the convex block of each framework plug-in is connected with the matching port of the other framework plug-in a plugging manner.

3. The armature of claim 2, wherein a height of the first hollow post is greater than or equal to a height of the second hollow post.

4. The armature of claim 1, wherein a bottom surface of the hollow post is rounded rectangular.

5. The armature of claim 1, wherein the armature base includes a base plate, and wherein the base plate extends in a direction opposite the hollow post to form a stop.

6. The armature of claim 5, wherein the number of bottom cores is the same as the number of windings;

7. The armature of claim 6, wherein for each of the windings, the sidewall stops include a first stop disposed opposite the middle stop, a second stop for limiting movement of the bottom core, and a third stop for limiting a distance between the windings.

8. The leadframe according to claim 7, wherein the third baffles form a V-like structure therebetween.

9. An inductor comprising a magnetic core and a coil, wherein the inductor further comprises the bobbin of any one of claims 1-8, the magnetic core is disposed in the hollow cavity, and the coil is wound around the hollow post.

10. An electronic device, characterized in that: the electronic device comprising the inductor of claim 9, the inductor being mounted in the electronic device.