CN219202879U - Frameless winding and magnetic assembly - Google Patents
Frameless winding and magnetic assembly Download PDFInfo
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- CN219202879U CN219202879U CN202320060457.6U CN202320060457U CN219202879U CN 219202879 U CN219202879 U CN 219202879U CN 202320060457 U CN202320060457 U CN 202320060457U CN 219202879 U CN219202879 U CN 219202879U
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Abstract
The utility model discloses a frameless winding and a magnetic assembly, wherein the frameless winding comprises a first conductive piece, and the first conductive piece is provided with a first through hole; the second conductive piece is provided with a second through hole, and the second through hole is communicated with the first through hole to form a through hole; and one end of the resisting part is fixedly connected with the first conductive piece, and the other end of the resisting part is fixedly connected with the second conductive piece so as to form a containing cavity between the first conductive piece and the second conductive piece. When the magnetic component is assembled, the winding column can be directly arranged in the through hole, and meanwhile, the winding group can be directly wound on the outer peripheral surface of the winding column in the accommodating cavity without arranging a framework in the magnetic component. Therefore, the assembly efficiency of the magnetic assembly can be improved, the volume of the magnetic assembly is reduced, and the technical problem that the heat dissipation performance is poor due to the fact that the framework is added is avoided.
Description
Technical Field
The utility model relates to the technical field of electronic components, in particular to a frameless winding and a magnetic assembly.
Background
In the current low-voltage output server power supply, because the current of the secondary winding of the transformer is larger, a plurality of groups of copper sheets Q as shown in fig. 1 and 2 are generally connected in parallel to increase the current of the secondary winding of the transformer, the primary winding of the transformer adopts a winding structure and is wound on a framework B, and meanwhile, the framework is also used for fixing the positions of the copper sheets. However, setting up the skeleton in the transformer can compress the wire winding space of primary winding, and then increased the loss of transformer, the heat conductivility of skeleton is relatively poor simultaneously, is unfavorable for the heat dissipation of transformer.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a frameless winding and a magnetic assembly, and aims to solve the technical problems that the heat dissipation performance of a transformer is poor and the winding space of a primary winding is small in the prior art.
To solve the above-mentioned problems, in a first aspect, an embodiment of the present utility model provides a frameless winding, which includes:
the first conductive piece is provided with a first through hole;
the second conductive piece is provided with a second through hole, and the second through hole is communicated with the first through hole to form a through hole;
and one end of the resisting part is fixedly connected with the first conductive piece, and the other end of the resisting part is fixedly connected with the second conductive piece so as to form a containing cavity between the first conductive piece and the second conductive piece.
Further, in the frameless winding, the first conductive member, the second conductive member, and the resisting portion are integrally formed.
Further, in the frameless winding, a first insulating layer is provided outside the first conductive member, the second conductive member, and the resisting portion.
Further, in the frameless winding, the first conductive member is further provided with a first opening, and the second conductive member is further provided with a second opening; the first opening, the second opening, the first through hole and the second through hole are communicated.
Furthermore, in the frameless winding, a first pin is further disposed on the first conductive member, a second pin is further disposed on the second conductive member, the first pin is disposed on two sides of the first opening, and the second pin is disposed on two sides of the second opening.
In a second aspect, embodiments of the present utility model also provide a magnetic assembly comprising:
the frameless winding of the first aspect;
the magnetic core group comprises a winding post which is arranged in the through hole; and
the winding group is wound on the outer circumferential surface of the winding post in the accommodating cavity.
Further, in the magnetic assembly, the magnetic assembly further includes a third conductive member and a fourth conductive member, the third conductive member is provided with a third through hole, the fourth conductive 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 are communicated to form the through hole, and the third conductive member and the fourth conductive member are respectively located at two sides of the frameless winding.
Further, in the magnetic component, the winding group comprises a coil cake structure formed by winding three layers of coils, and the coils are provided with second insulating layers.
Further, in the magnetic assembly, the magnetic core group further includes a first magnetic core portion and a second magnetic core portion, and the first magnetic core portion is fixedly connected with the second magnetic core portion.
Still further, 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 portion are integrally formed, and the second winding post and the second magnetic core portion are integrally formed.
The frameless winding provided by the embodiment of the utility model comprises the first conductive piece, the second conductive piece and the resisting part, wherein the first conductive piece is provided with the first through hole, the second conductive piece is provided with the second through hole, the first through hole is communicated with the second through hole to form a through hole, the resisting part is fixedly connected with the first conductive piece and the second conductive piece respectively to form an integrated structure, and a containing cavity is formed between the first conductive piece and the second conductive piece, so that a winding column can be directly arranged in the through hole in the assembling process of the magnetic assembly, meanwhile, a skeleton is not required to be arranged in the magnetic assembly, a winding group can be directly wound on the outer peripheral surface of the winding column in the containing cavity, the assembling efficiency of the magnetic assembly can be improved, the size of the magnetic assembly is reduced, and meanwhile, the technical problem that the heat dissipation performance is poor due to the fact that the skeleton is increased is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art magnetic assembly;
FIG. 2 is an exploded view of a prior art magnetic assembly;
fig. 3 is a schematic structural diagram of a frameless winding according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of a non-skeleton winding after being flattened according to an embodiment of the present utility model;
FIG. 5 is a schematic diagram of a magnetic assembly according to an embodiment of the present utility model;
FIG. 6 is an exploded view of a magnetic assembly according to an embodiment of the present utility model;
FIG. 7 is a schematic view of a magnetic component according to an embodiment of the present utility model;
fig. 8 is a partial exploded view of a magnetic assembly according to an embodiment of the present utility model.
Reference numerals illustrate: the copper sheet is Q, the skeleton is B,101 is first electrically conductive piece, 1011 is first through-hole, 1012 is first opening, 1013 is first pin, 102 is second electrically conductive piece, 1021 is second through-hole, 1022 is second opening, 1023 is second pin, 103 is the department of keeping out, 104 is third electrically conductive piece, 1041 is third through-hole, 1042 is third opening, 1043 is third pin, 105 is fourth electrically conductive piece, 1051 is fourth through-hole, 1052 is fourth opening, 1053 is fourth pin, 201a is first magnetic core portion, 201B is second magnetic core portion, 202a is first wrapping post, 202B is second wrapping post, 30 is wire winding group.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
Referring to fig. 3 and fig. 4, fig. 3 is a schematic structural diagram of a frameless winding according to an embodiment of the present utility model; fig. 4 is a schematic structural diagram of a non-skeletal winding after flattening according to an embodiment of the present utility model. As shown in fig. 3 and 4, a frameless winding comprising:
a first conductive member 101, where the first conductive member 101 is provided with a first through hole 1011;
a second conductive member 102, where the second conductive member 102 is provided with a second through hole 1021, and the second through hole 1021 is communicated with the first through hole 1011 to form a through hole;
and one end of the resisting part 103 is fixedly connected with the first conductive piece 101, and the other end of the resisting part 103 is fixedly connected with the second conductive piece 102, so that a containing cavity is formed between the first conductive piece 101 and the second conductive piece 102.
The first through hole 1011 may be provided in the middle of the first conductive element 101, the second through hole 1021 may be provided in the middle of the second conductive element 102, the first conductive element 101 and the second conductive element 102 may be disposed in parallel, the resisting portion 103 is used to fix the first conductive element 101 and the second conductive element 102 into an integrated structure, and a U-shaped accommodating cavity is formed between the first conductive element 101 and the second conductive element 102, so that the frameless winding may directly wind around the through hole in the accommodating cavity when applied to the magnetic assembly, and limit through the resisting portion 103.
Specifically, the first conductive element 101 and the second conductive element 102 may be used as secondary windings in the magnetic assembly, and in this embodiment, the first conductive element 101 and the second conductive element 102 are preferably copper sheets; the accommodating cavities formed by the first conductive element 101 and the second conductive element 102 through the resisting part 103 can be directly used as cavities of primary winding windings in the magnetic assembly.
In some embodiments, as shown in fig. 2, the first conductive element 101, the second conductive element 102, and the resisting portion 103 are integrally formed.
Specifically, the first conductive element 101, the second conductive element 102, and the resisting portion 103 may be directly formed integrally by stamping, or may be formed integrally by welding, or may be formed integrally by fixing the first conductive element 101, the second conductive element 102, and the resisting portion 103 in other manners.
In this embodiment, the first conductive member 101, the second conductive member 102 and the resisting portion 103 are preferably formed by stamping and integrally forming, and after the first conductive member 101, the second conductive member 102 and the resisting portion 103 are formed by stamping and integrally forming, the first conductive member 101 and the resisting portion 103 and the second conductive member 102 and the resisting portion 103 can be directly bent, so that a U-shaped accommodating cavity is formed between the first conductive member 101 and the second conductive member 102.
In some embodiments, as shown in fig. 3 and 4, the first conductive element 101 is further provided with a first opening 1012, and the second conductive element 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 communicate. Wherein, the first conductive member 101 is provided with a first opening 1012, and the second conductive member 102 is provided with a second opening 1022, so that the magnetic assembly short circuit of the frameless winding after being assembled into the magnetic assembly can be prevented. In addition, the first opening 1012 extends from the outermost periphery 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 periphery of the second conductive member 102 to the bottom of the uppermost end of the second through hole 1021.
In some specific embodiments, as shown in fig. 3 and 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, where the first pin 1013 is located on two sides of the first opening 1012, and the second pin 1023 is located on two sides of the second opening 1022.
Specifically, two first pins 1013 may be disposed on the first conductive member 101, the two first pins 1013 may be located at two sides of the first opening 1012, two second pins 1023 may be disposed on the second conductive member 102, the two second pins 1023 may be located at two sides of the second opening 1022, and the first pins 1013 and the second pins 1023 may be used for electrically connecting the frameless winding with other electronic components.
In some embodiments, as shown in fig. 5 and 6, embodiments of the present utility model also provide a magnetic assembly comprising:
a first conductive member 101, where the first conductive member 101 is provided with a first through hole 1011;
a second conductive member 102, where the second conductive member 102 is provided with a second through hole 1021, and the second through hole 1021 is communicated with the first through hole 1011 to form a through hole;
a resisting part 103, wherein one end of the resisting part 103 is fixedly connected with the first conductive element 101, and the other end is fixedly connected with the second conductive element 102, so as to form a containing cavity between the first conductive element 101 and the second conductive element 102;
the magnetic core group comprises a winding post which is arranged in the through hole;
the winding group 30 is wound on the outer circumferential surface of the winding post in the accommodating cavity by the winding group 30.
In this embodiment, the frameless winding formed by the first conductive member 101, the second conductive member 102 and the resisting portion 103 may be used as a secondary winding of the magnetic assembly, and the winding set 30 may be used as a primary winding of the magnetic assembly. When the magnetic assembly is assembled, the winding column can be directly arranged in the through hole, meanwhile, a framework is not required to be arranged in the magnetic assembly, the winding group 30 can be directly wound on the outer peripheral surface of the winding column in the accommodating cavity, the assembly efficiency of the magnetic assembly can be improved, the volume of the magnetic assembly is reduced, and meanwhile, the technical problem that the transformer has poor heat dissipation performance due to the fact that the framework is increased is avoided.
It should be noted that the magnetic component provided in the embodiments of the present application may be, but not limited to, a transformer, and may also be an inductor, a filter, or the like. Meanwhile, a plurality of frameless windings can be arranged in the magnetic assembly provided by the embodiment of the application, through holes of the frameless windings are communicated, winding posts in the magnetic core groups can be directly arranged in the through holes, a winding group 30 can be arranged in a containing cavity formed by each frameless winding, and each winding group 30 can be independently wound on the outer peripheral surface of the winding post in one containing cavity. In addition, the winding groups 30 may be directly connected in the accommodating cavity and limited by the resisting portion 103.
In some specific embodiments, as shown in fig. 6, 7 and 8, the magnetic assembly further includes a third conductive member 104 and a fourth conductive member 105, the third conductive member 104 is provided with a third through hole 1041, the fourth conductive member 105 is provided with a fourth through hole 1051, and the first through hole 1011, the second through hole 1021, the third through hole 1041 and the fourth through hole 1051 are communicated to form the through hole, and the third conductive member 104 and the fourth conductive member 105 are respectively located at two sides of the frameless winding.
Specifically, two third pins 1043 may be further disposed on the third conductive member 104, two fourth pins 1053 may be further disposed on the fourth conductive member 105, the two third pins 1043 may be respectively located at two sides of the third opening 1042, and the two fourth pins 1053 may be respectively located at two sides of the fourth opening 1052. The third conductive element 104 and the fourth conductive element 105 are part of the secondary winding of the magnetic assembly, and the third pin 1043 and the fourth pin 1053 can be electrically connected with the first conductive element 101 and the first pin 1013 and the second pin 1023 of the second conductive element 102 in other non-skeleton windings of the magnetic assembly respectively, so as to realize parallel connection of the conductive elements. While the third conductive member 104 and the fourth conductive member 105 are preferably copper sheets in this embodiment.
In addition, in some embodiments, to prevent the magnetic assembly from shorting, 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 on the outer side, while the coil in the winding set 30 is also provided with a second insulating layer. The winding group 30 for winding in the accommodating cavity may be formed by winding three layers of coils with second insulating layers on the winding posts.
In some embodiments, as shown in fig. 5 and 6, the magnetic core set further includes a first magnetic core portion 201a and a second magnetic core portion 201b, and the first magnetic core portion 201a is fixedly connected with the second magnetic core portion 201 b.
In this embodiment, the first core portion 201a and the second core portion 201b are symmetrical to each other, the first core portion 201a and the second core portion 201b may be connected to each other by a winding post to form a core group in the magnetic assembly, and the first core portion 201a and the second core portion 201b may be fixedly connected by dispensing.
In the embodiment shown in fig. 5 and 6, the magnetic core assembly may be formed of two E-shaped magnetic cores, that is, the first winding leg 202a and the first magnetic core portion 201a are integrally formed to form one E-shaped magnetic core, and the second winding leg 202b and the second magnetic core portion 201b are integrally formed to form one E-shaped magnetic core.
It should be noted that, the magnetic core set mentioned in the present application may be further configured by a U-shaped magnetic core and a T-shaped magnetic core, and the architecture of the magnetic core set may be selected according to practical applications, which is not specifically limited in this embodiment.
In summary, the frameless winding provided in the embodiment of the utility model may be formed by the first conductive member 101, the second conductive member 102 and the resisting portion 103, and the first conductive member 101 is provided with the first through hole 1011, the second conductive member 102 is provided with the second through hole 1021, the first through hole 1011 and the second through hole 1021 are communicated to form a through hole, and the resisting portion 103 is fixedly connected with the first conductive member 101 and the second conductive member 102 respectively to form an integral structure, and meanwhile, a accommodating cavity is formed between the first conductive member 101 and the second conductive member 102, so that the winding post can be directly arranged in the through hole during the assembly process of the magnetic assembly, and the winding group 30 can be directly wound around the outer circumferential surface of the winding post in the accommodating cavity without arranging a skeleton in the magnetic assembly, thereby not only improving the assembly efficiency of the magnetic assembly, but also reducing the volume of the magnetic assembly, and simultaneously avoiding the technical problem of poor heat dissipation performance caused by the increase of the skeleton.
While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A frameless winding comprising:
the first conductive piece is provided with a first through hole;
the second conductive piece is provided with a second through hole, and the second through hole is communicated with the first through hole to form a through hole;
and one end of the resisting part is fixedly connected with the first conductive piece, and the other end of the resisting part is fixedly connected with the second conductive piece so as to form a containing cavity between the first conductive piece and the second conductive piece.
2. The frameless winding of claim 1, wherein the first conductive member, the second conductive member, and the withstanding portion are integrally formed.
3. The frameless winding of claim 2, wherein the first conductive member, the second conductive member, and the outer side of the withstanding portion are provided with a first insulating layer.
4. The frameless winding of claim 1, wherein the first conductive member is further provided with a first opening and the second conductive member is further provided with a second opening; the first opening, the second opening, the first through hole and the second through hole are communicated.
5. The frameless winding of claim 4, wherein the first conductive member further comprises a first pin, and the second conductive member further comprises a second pin, wherein the first pin is positioned on both sides of the first opening, and wherein the second pin is positioned on both sides of the second opening.
6. A magnetic assembly, comprising:
a frameless winding of any of claims 1-5;
the magnetic core group comprises a winding post which is arranged in the through hole; and
the winding group is wound on the outer circumferential surface of the winding post in the accommodating cavity.
7. The magnetic assembly of claim 6, further comprising a third conductive member and a fourth conductive member, the third conductive member being provided with a third through hole, the fourth conductive member being provided with a fourth through hole, the first through hole, the second through hole, the third through hole, and the fourth through hole being in communication to form the through hole, the third conductive member and the fourth conductive member being located on respective sides of the frameless winding.
8. The magnetic assembly of claim 6, wherein the winding comprises a pancake structure of three layers of coils, the coils being provided with a second insulating layer.
9. The magnetic assembly of claim 6, wherein the magnetic core set further comprises a first magnetic core portion and a second magnetic core portion, the first magnetic core portion being fixedly connected to the second magnetic core portion.
10. The magnetic assembly of claim 9, wherein the winding leg comprises a first winding leg and a second winding leg, the first winding leg and the first core portion being integrally formed, the second winding leg and the second core portion being integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320060457.6U CN219202879U (en) | 2023-01-09 | 2023-01-09 | Frameless winding and magnetic assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320060457.6U CN219202879U (en) | 2023-01-09 | 2023-01-09 | Frameless winding and magnetic assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219202879U true CN219202879U (en) | 2023-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320060457.6U Active CN219202879U (en) | 2023-01-09 | 2023-01-09 | Frameless winding and magnetic assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219202879U (en) |
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2023
- 2023-01-09 CN CN202320060457.6U patent/CN219202879U/en active Active
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