CN219202879U - Frameless winding and magnetic assembly - Google Patents

Abstract

The utility model discloses a skeletonless winding and a magnetic assembly, wherein the skeletonless winding comprises a first conductive part, and the first conductive part is provided with a first through hole; a second conductive part, and the second conductive part is provided with a A second through hole, the second through hole communicates with the first through hole to form a through hole; a resisting portion, one end of the resisting portion is fixedly connected to the first conductive member, and the other end is connected to the first conductive member. The two conductive parts are fixedly connected to form an accommodating cavity between the first conductive part and the second conductive part. In the utility model, when the magnetic assembly is assembled, the winding column can be directly arranged in the through hole, and at the same time, the winding group can be directly wound in the accommodating cavity without setting a skeleton in the magnetic assembly. The outer circumference of the column. As a result, not only can the assembly efficiency of the magnetic assembly be improved, but also the volume of the magnetic assembly can be reduced, and at the same time, the technical problem of poor heat dissipation performance caused by the addition of the skeleton can be avoided.

Description

Bobbinless Windings and Magnetics

technical field

The utility model relates to the technical field of electronic components, in particular to a skeletonless winding and a magnetic assembly.

Background technique

At present, in server power supplies with low-voltage output, due to the large current of the secondary winding of the transformer, multiple sets of copper sheets Q are usually connected in parallel as shown in Figure 1 and Figure 2 to increase the current flow of the secondary winding of the transformer. The primary winding of the primary winding adopts a winding structure and is wound on the frame B, and the frame is also used to fix the position of each copper sheet. However, setting the skeleton in the transformer will compress the winding space of the primary winding, thereby increasing the loss of the transformer. At the same time, the thermal conductivity of the skeleton is poor, which is not conducive to the heat dissipation of the transformer.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a skeletonless winding and a magnetic assembly, aiming to solve the technical problems of poor heat dissipation performance of the transformer and less winding space of the primary winding in the prior art.

In order to solve the above problems, in the first aspect, the embodiment of the present invention provides a skeletonless winding, which includes:

a first conductive element, the first conductive element is provided with a first through hole;

a second conductive member, the second conductive member is provided with a second through hole, and the second through hole communicates with the first through hole to form a through hole;

A resisting part, one end of the resisting part is fixedly connected to the first conductive part, and the other end is fixedly connected to the second conductive part, so as to form a gap between the first conductive part and the second conductive part Accommodating cavity.

Further, in the skeletonless winding, the first conductive member, the second conductive member and the resisting portion are integrally formed.

Furthermore, in the frameless winding, a first insulating layer is provided on the outer sides of the first conductive member, the second conductive member and the resisting portion.

Further, in the skeletonless winding, the first conductive member is also provided with a first opening, and the second conductive member is also provided with a second opening; the first opening, the second opening, The first through hole communicates with the second through hole.

Furthermore, in the skeletonless winding, the first conductive member is also provided with a first pin, and the second conductive member is also provided with a second pin, and the first pin is located at On both sides of the first opening, the second pins are located on both sides of the second opening.

In the second aspect, the embodiment of the utility model also provides a magnetic assembly, which includes:

The bobbinless winding as described in the first aspect;

a magnetic core set, the magnetic core set includes a winding post, and the winding post is disposed in the through hole; and

A winding group, the winding group is wound on the outer peripheral surface of the winding post in the accommodating cavity.

Further, in the magnetic assembly, the magnetic assembly further includes a third conductive part and a fourth conductive part, the third conductive part is provided with a third through hole, and the fourth conductive part is provided with a fourth Through holes, the first through hole, the second through hole, the third through hole and the fourth through hole communicate to form the through hole, the third conductive member, the fourth conductive The pieces are respectively located on both sides of the skeletonless winding.

Further, in the magnetic assembly, the winding group includes a wire cake structure wound by three layers of coils, and the coils are provided with a second insulating layer.

Further, in the magnetic assembly, the magnetic core group further includes a first magnetic core part and a second magnetic core part, and the first magnetic core part is fixedly connected to the second magnetic core part.

Furthermore, in the magnetic assembly, the winding post includes a first winding post and a second winding post, the first winding post and the first magnetic core part are integrally formed, the The second winding post and the second magnetic core part are integrally formed.

The skeletonless winding provided by the embodiment of the utility model includes a first conductive part, a second conductive part and a resisting part, wherein the first conductive part is provided with a first through hole, and the second conductive part is provided with a second through hole. hole, the first through hole communicates with the second through hole to form a through hole, and the resisting part is respectively fixedly connected with the first conductive part and the second conductive part to form an integrated structure, and between the first conductive part and the second conductive part A housing cavity is formed between them, so that during the assembly process of the magnetic component, the winding post can be directly placed in the through hole, and at the same time, the winding can be directly assembled in the housing cavity without setting a skeleton in the magnetic component Winding on the outer peripheral surface of the winding post can not only improve the assembly efficiency of the magnetic component, but also reduce the volume of the magnetic component, and at the same time avoid the technical problem of poor heat dissipation performance caused by adding a skeleton.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the utility model. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a structural schematic diagram of an existing magnetic assembly;

Figure 2 is an exploded view of an existing magnetic assembly;

Fig. 3 is a schematic structural diagram of a skeletonless winding provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the flattened structure of the skeletonless winding provided by the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a magnetic assembly provided by an embodiment of the present invention;

Figure 6 is an exploded view of the magnetic assembly provided by the embodiment of the present invention;

Fig. 7 is a partial structural schematic diagram of the magnetic assembly provided by the embodiment of the present invention;

Fig. 8 is a partial exploded view of the magnetic assembly provided by the embodiment of the present invention.

Explanation of reference numerals: the copper sheet is Q, the skeleton is B, 101 is the first conductive part, 1011 is the first through hole, 1012 is the first opening, 1013 is the first pin, 102 is the second conductive part, 1021 is The second through hole, 1022 is the second opening, 1023 is the second pin, 103 is the resisting part, 104 is the third conductive member, 1041 is the third through hole, 1042 is the third opening, 1043 is the third pin, 105 is the fourth conductive member, 1051 is the fourth through hole, 1052 is the fourth opening, 1053 is the fourth pin, 201a is the first magnetic core part, 201b is the second magnetic core part, 202a is the first winding post , 202b is the second winding post, 30 is the winding group.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. . Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and/or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and/or collections thereof.

It should also be understood that the terminology used in the description of the present invention is only for the purpose of describing specific embodiments and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural referents unless the context clearly dictates otherwise.

It should also be further understood that the term "and/or" used in the description of the utility model and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combination.

Please refer to Fig. 3 and Fig. 4, Fig. 3 is a schematic structural diagram of the skeletonless winding provided by the embodiment of the present invention; Fig. 4 is a schematic structural diagram of the flattened skeletonless winding provided by the embodiment of the present utility model. As shown in Figure 3 and Figure 4, a skeletonless winding, which includes:

a first conductive member 101, the first conductive member 101 is provided with a first through hole 1011;

The second conductive member 102, the second conductive member 102 is provided with a second through hole 1021, and the second through hole 1021 communicates with the first through hole 1011 to form a through hole;

A resisting portion 103, one end of the resisting portion 103 is fixedly connected to the first conductive member 101, and the other end is fixedly connected to the second conductive member 102, so that the first conductive member 101 and the second conductive member An accommodating cavity is formed between the pieces 102 .

Wherein, the first through hole 1011 can be arranged in the middle of the first conductive member 101, the second through hole 1021 can be arranged in the middle of the second conductive member 102, the first conductive member 101 and the second conductive member 102 can be arranged in parallel, and the resisting portion 103 is used to fix the first conductive member 101 and the second conductive member 102 into an integrated structure, and form a U-shaped accommodation cavity between the first conductive member 101 and the second conductive member 102, so that no When the skeleton winding is applied to the magnetic assembly, it can be directly wound around the through hole in the accommodating cavity, and the position is limited by the resisting portion 103 .

Specifically, the first conductive part 101 and the second conductive part 102 can be used as secondary windings in the magnetic assembly. In this embodiment, the first conductive part 101 and the second conductive part 102 are preferably copper sheets; the first conductive part 101 and the second conductive part The accommodating cavity formed by the conductive member 102 through the resisting portion 103 can directly serve as a cavity for the primary winding in the magnetic assembly.

In some embodiments, as shown in FIG. 2 , the first conductive member 101 , the second conductive member 102 and the resisting portion 103 are integrally formed.

Specifically, the first conductive member 101, the second conductive member 102, and the resisting portion 103 can be integrally formed directly by stamping, or can be integrally formed by welding, or the first conductive member 101, the second conductive member 101, and the second conductive member can be connected in other ways 102 and the resisting portion 103 are integrally formed.

In this embodiment, the first conductive member 101, the second conductive member 102, and the resisting portion 103 are preferably integrally formed by stamping. Bending is performed between the first conductive member 101 and the resisting portion 103, and between the second conductive member 102 and the resisting portion 103, so that a U-shaped structure is formed between the first conductive member 101 and the second conductive member 102. cavity.

In some embodiments, as shown in FIG. 3 and FIG. 4 , the first conductive member 101 is further provided with a first opening 1012, and the second conductive member 102 is further provided with a second opening 1022; the first opening 1012 , the second opening 1022 , the first through hole 1011 and the second through hole 1021 are in communication. Wherein, the first opening 1012 is provided on the first conductive member 101, and the second opening 1022 is provided on the second conductive member 102, so as to prevent the magnetic assembly from short circuiting after the bobbinless winding is assembled into the magnetic assembly. In addition, the first opening 1012 extends from the outermost circumference of the first conductive member 101 to the bottom of the uppermost end of the first through hole 1011, and the second opening 1022 extends from the outermost circumference of the second conductive member 102 to the uppermost end of the second through hole 1021. bottom.

In some specific embodiments, as shown in FIG. 3 and FIG. 4 , the first conductive member 101 is further provided with a first pin 1013 , and the second conductive member 102 is further provided with a second pin 1023 , the first pins 1013 are located on both sides of the first opening 1012 , and the second pins 1023 are located on both sides of the second opening 1022 .

Specifically, two first pins 1013 can be set on the first conductive member 101, and the two first pins 1013 can be respectively located on both sides of the first opening 1012, and two second lead pins can be set on the second conductive member 102. The pin 1023 and the two second pins 1023 can be located on both sides of the second opening 1022 respectively, and the first pin 1013 and the second pin 1023 can be used for electrical connection between the bobbinless winding and other electronic components.

In some embodiments, as shown in Figure 5 and Figure 6, the embodiment of the present invention also provides a magnetic assembly, which includes:

a first conductive member 101, the first conductive member 101 is provided with a first through hole 1011;

The second conductive member 102, the second conductive member 102 is provided with a second through hole 1021, and the second through hole 1021 communicates with the first through hole 1011 to form a through hole;

A resisting portion 103, one end of the resisting portion 103 is fixedly connected to the first conductive member 101, and the other end is fixedly connected to the second conductive member 102, so that the first conductive member 101 and the second conductive member An accommodating cavity is formed between the pieces 102;

A magnetic core set, the magnetic core set includes a winding post, and the winding post is arranged in the through hole;

The winding group 30 is wound on the outer peripheral surface of the winding post in the accommodating cavity.

In this embodiment, the skeletonless winding formed by the first conductive member 101 , the second conductive member 102 and the resisting portion 103 can be used as the secondary winding of the magnetic assembly, and the winding group 30 can be used as the primary winding of the magnetic assembly. During the assembly process of the magnetic component, the winding post can be directly arranged in the through hole, and at the same time, the winding group 30 can be directly wound around the outer circumference of the winding post in the accommodating cavity without setting a skeleton in the magnetic component On the surface, it can not only improve the assembly efficiency of the magnetic components, but also reduce the volume of the magnetic components, and at the same time avoid the technical problem of poor heat dissipation performance of the transformer due to the increase of the skeleton.

It should be noted that the magnetic component provided in the embodiment of the present application may be, but not limited to, a transformer, and may also be an inductor or a filter. At the same time, multiple bobbinless windings can be set in the magnetic assembly provided by the embodiment of the present application, and the through holes of each bobbinless winding are connected, and the winding posts in the magnetic core group can be directly arranged in the through holes, and each bobbinless winding A winding group 30 can be arranged in each of the formed accommodation cavities, and each winding group 30 can be individually wound on the outer peripheral surface of the winding post in one accommodation cavity. In addition, the winding groups 30 can be connected directly in the accommodating cavity, and the position is limited by the resisting portion 103 .

In some specific embodiments, as shown in FIG. 6, FIG. 7 and FIG. The hole 1041, the fourth conductive member 105, is provided with a fourth through hole 1051, the first through hole 1011, the second through hole 1021, the third through hole 1041 and the fourth through hole 1051 connected to form the through hole, and the third conductive member 104 and the fourth conductive member 105 are respectively located on both sides of the skeletonless winding.

Specifically, two third pins 1043 can also be set on the third conductive member 104, two fourth pins 1053 can be set on the fourth conductive member 105, and the two third pins 1043 can be respectively located in the third opening On both sides of 1042, two fourth pins 1053 may be located on both sides of the fourth opening 1052, respectively. The third conductive member 104 and the fourth conductive member 105 are part of the secondary winding of the magnetic assembly, and the third pin 1043 and the fourth pin 1053 can be connected with the first conductive member 101, the fourth pin 1053 and the other skeletonless windings in the magnetic assembly respectively The first pin 1013 and the second pin 1023 of the second conductive element 102 are electrically connected to realize parallel connection of each conductive element. At the same time, both the third conductive member 104 and the fourth conductive member 105 are preferably copper sheets in this embodiment.

In addition, in some embodiments, in order to prevent the short circuit of the magnetic components, the outer sides of the first conductive member 101, the second conductive member 102, the resisting portion 103, the third conductive member 104 and the fourth conductive member 105 are all provided with a first insulating layer , while the coils in the winding set 30 are also provided with a second insulating layer. Wherein, the winding group 30 for winding in the accommodating cavity can be formed by winding three layers of coils with the second insulating layer on the winding posts.

In some embodiments, as shown in FIG. 5 and FIG. 6, the magnetic core group further includes a first magnetic core part 201a and a second magnetic core part 201b, and the first magnetic core part 201a and the second magnetic core part The core 201b is fixedly connected.

In this embodiment, the first magnetic core part 201a and the second magnetic core part 201b are symmetrical to each other, and a winding post can be passed between the first magnetic core part 201a and the second magnetic core part 201b to form a magnetic core in the magnetic assembly. group, the first magnetic core part 201a and the second magnetic core part 201b can be fixedly connected by dispensing glue.

In the specific embodiment shown in FIG. 5 and FIG. 6 , the magnetic core group can be composed of two E-shaped magnetic cores, that is, the first winding post 202a and the first magnetic core part 201a are integrally formed to form an E-shaped magnetic core. The magnetic core, the second winding post 202b, and the second magnetic core part 201b are integrally formed to form an E-shaped magnetic core.

It should be noted that the magnetic core group mentioned in this application can also be obtained by a U-shaped magnetic core and a T-shaped magnetic structure, and the structure of the magnetic core group can be selected according to the actual application, which is not specifically limited in this embodiment.

In summary, the skeletonless winding provided by the embodiment of the present utility model can be formed by the first conductive member 101, the second conductive member 102 and the resisting portion 103, and the first through hole 1011 is provided on the first conductive member 101, the second The second through hole 1021 is provided on the second conductive member 102, the first through hole 1011 communicates with the second through hole 1021 to form a through hole, and the resisting portion 103 is fixedly connected to the first conductive member 101 and the second conductive member 102 respectively to form a through hole. Integral structure, and at the same time, an accommodating cavity is formed between the first conductive part 101 and the second conductive part 102, so that during the assembly process of the magnetic assembly, the winding post can be directly arranged in the through hole, without the need for magnetic If the skeleton is set in the component, the winding group 30 can be directly wound on the outer peripheral surface of the winding column in the accommodating cavity, which not only improves the assembly efficiency of the magnetic component, but also reduces the volume of the magnetic component, and avoids increasing the The skeleton leads to a technical problem of poor thermal performance.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of various Equivalent modifications or replacements shall all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (10)

1. A skeletonless winding, characterized in that it comprises: a first conductive element, the first conductive element is provided with a first through hole; a second conductive member, the second conductive member is provided with a second through hole, and the second through hole communicates with the first through hole to form a through hole; A resisting part, one end of the resisting part is fixedly connected to the first conductive part, and the other end is fixedly connected to the second conductive part, so as to form a gap between the first conductive part and the second conductive part Accommodating cavity. 2 . The frameless winding according to claim 1 , wherein the first conductive member, the second conductive member and the resisting portion are integrally formed. 3 . 3 . The frameless winding according to claim 2 , wherein a first insulating layer is provided on the outside of the first conductive member, the second conductive member and the resisting portion. 4 . 4. The frameless winding according to claim 1, characterized in that, the first conductive member is also provided with a first opening, and the second conductive member is also provided with a second opening; the first opening, the The second opening, the first through hole and the second through hole communicate with each other. 5. The frameless winding according to claim 4, characterized in that, the first conductive member is further provided with a first pin, the second conductive member is further provided with a second pin, and the first conductive member is further provided with a second pin. A pin is located on both sides of the first opening, and the second pin is located on both sides of the second opening. 6. A magnetic assembly, characterized in that it comprises: The skeletonless winding according to any one of claims 1-5; a magnetic core set, the magnetic core set includes a winding post, and the winding post is disposed in the through hole; and A winding group, the winding group is wound on the outer peripheral surface of the winding post in the accommodating cavity. 7. The magnetic assembly according to claim 6, characterized in that, the magnetic assembly further comprises a third conductive member and a fourth conductive member, the third conductive member is provided with a third through hole, and the fourth conductive member The member is provided with a fourth through hole, the first through hole, the second through hole, the third through hole and the fourth through hole communicate to form the through hole, the third conductive member, The fourth conductive member is respectively located on two sides of the frameless winding. 8 . The magnetic assembly according to claim 6 , wherein the winding group comprises a wire cake structure wound by three layers of coils, and the coils are provided with a second insulating layer. 9. The magnetic assembly according to claim 6, wherein the magnetic core group further comprises a first magnetic core part and a second magnetic core part, the first magnetic core part and the second magnetic core part Fixed connection. 10. The magnetic assembly according to claim 9, wherein the winding post comprises a first winding post and a second winding post, and the first winding post and the first magnetic core part are integrated Molding, the second winding post and the second magnetic core part are integrally formed.

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