CN108831718A - A kind of skeleton of transformer - Google Patents
A kind of skeleton of transformer Download PDFInfo
- Publication number
- CN108831718A CN108831718A CN201810618631.8A CN201810618631A CN108831718A CN 108831718 A CN108831718 A CN 108831718A CN 201810618631 A CN201810618631 A CN 201810618631A CN 108831718 A CN108831718 A CN 108831718A
- Authority
- CN
- China
- Prior art keywords
- transformer
- skeleton
- support frame
- magnetic core
- coiling group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention provides a kind of skeletons of transformer, coiling group and magnetic core are installed by support frame, by nested skeleton magnetic core in closing or semi-closed structure, make magnetic core in any position, safety requirement is able to satisfy with the creepage distance of secondary conductor part, by the implementation of nested structure, transformer overall dimension will not become larger, and meet small form factor requirements；It does not influence original standardization transformer performance to realize, the parameter of coil and magnetic core does not make an amendment basic standardized transformer size；Transformer welding bulk can be reduced, secondary end fly line is avoided to weld.
Description
Technical field
The present invention relates to a kind of skeletons of transformer.
Background technique
Common AC-DC switching mode power supply transformer, skeleton include the wrapping post with centre bore and primary secondary terminal board knot
Structure, belongs to single part more, easy to produce and reduce cost.
Fig. 1 is one kind of the prior art, and the ampere gauge transformer framework form that AC-DC Switching Power Supply uses is that leading-out terminal is symmetrical
Structure, its defect of the transformer framework of small size are that the distance of magnetic core of transformer to transformer secondary pin is inadequate.
Fig. 2 is one kind of the prior art, and by insulating, gummed paper will wrap on the magnetic core of transformer.Transformer secondary output outlet
End is welded on pcb board using fly line mode.The defect of this mode is that transformer manufacturing process time is long, and transformer is on PCBA
Assembling process difficulty it is big, greatly waste device part mate personnel production hour.
Fig. 3 is the another kind of the prior art, and the distance by extending transformer secondary pin to magnetic core is climbed to meet safety
The requirement of electrical distance, the skeleton of this form, defect are to occupy too many pcb board area, are unfavorable for the small-sized of Switching Power Supply
Change design requirement.
Under the safety creepage distance of restriction requires, current AC-DC switching mode power supply transformer skeleton is all made of above-mentioned
Three kinds of modes to meet safety requirement, cause current production efficiency low or overall dimensions can not reduce.
Transformer framework industry has formed standardized production, there is a large amount of male model product, on the market in order to save
Standardized male model product in the market is usually selected in cost and standardization, cause entire AC-DC switch power module production and
Outer dimension cannot meet miniaturization demand.To the research in terms of skeleton in industry, always without being detached from above-mentioned three kinds of sides
Formula it is basic.
Summary of the invention
For overcome the deficiencies in the prior art, in face of the trend of miniaturization, the present invention is intended to provide a kind of solve
The problem of fly line plug-in unit hardly possible, and guarantee that outer dimension is as small as possible on the basis of guaranteeing safety creepage distance, meet small-sized
While change demand, cost of labor is welded by reducing fly line, guarantees that entire product will not increase because structure type changes
The skeleton of the transformer of cost.
To achieve the goals above, technical scheme is as follows：
A kind of skeleton of transformer, including support frame, nested skeleton；
The support frame is equipped with transformer primary side pin, the transformer for wrapping coiling group, the support frame
Primary side pin with the primary side of coiling group around lead for connecting；
The nesting skeleton includes shielding case, has cavity inside the shielding case, the cavity is equipped with opening, conducting wire is opened
Slot the support frame for being mounted with magnetic core and coiling group to be coated in the cavity of the nested skeleton by opening, and passes through
Conducting wire fluting draws on the secondary side of coiling group around lead, and the shielding case is equipped with for connecting around lead with the secondary side
Transformer secondary pin, and then increase the creepage distance of the magnetic core and transformer secondary output end, it is full under the premise of controlling size
Sufficient safety requirement.
Preferably, the opening of the nested skeleton is equipped with buckle, and the support frame is equipped with buckle column, passes through the card
The magnetic core and the coiling group, support frame are coated in the cavity of the nested skeleton by button, buckle column.
Preferably, the support frame is equipped with winding slot, and the coiling group surrounds on the winding slot of the support frame.
Preferably, the transformer primary side pin of the support frame is located at the opening, the conducting wire fluting with it is described
Transformer secondary pin is located at the other side of the opening, and then increases the creepage distance of the magnetic core and transformer secondary output end,
Meet safety requirement under the premise of controlling size.
Preferably, the transformer secondary pin is set on the outside of the shielding case.
The skeleton of transformer provided by the invention passes through nested skeleton magnetic core in closing or semi-closed structure, and magnetic core is made to exist
Any position is able to satisfy safety requirement with the creepage distance of secondary conductor part, and by the implementation of nested structure, transformer is whole
Body outer dimension will not become larger, and meet small form factor requirements；It does not influence original standardization transformer performance to realize, coil and magnetic core
Parameter, basic standardized transformer size is not made an amendment；Transformer welding bulk can be reduced, secondary is avoided
Hold fly line welding.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is a kind of standard transformer skeleton of the prior art.
Fig. 2 is a kind of transformer device structure that insulating cement paper bag is wrapped up in of the prior art.
Fig. 3 is a kind of safety transformer of the prior art；
Fig. 4 is structural schematic diagram of the embodiment of the present invention；
Fig. 5 is assembling schematic diagram of the embodiment of the present invention；
Fig. 6 is structural schematic diagram after assembly of the embodiment of the present invention；
Fig. 7 is diagrammatic cross-section of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As also shown in e.g. figs. 4-7, a kind of skeleton of transformer, including nested skeleton 1, support frame 2,；The support frame 2
Equipped with transformer primary side pin 21, coiling group 4 surrounds on the support frame 2, and the primary side of the coiling group 4 around lead with
The transformer primary side pin 21 connects, the magnetic core in this programme in a pair, including the first magnetic core 5, the second magnetic core 3, into
And magnetic core is sleeved in the coiling group 4 and the support frame 2 from upper and lower ends；
The nesting skeleton 1 includes shielding case, has cavity inside the shielding case, and the cavity is equipped with opening, conducting wire
Fluting 11, the support frame 2 for being mounted with magnetic core and coiling group 4 to be coated in the cavity of the nested skeleton 1 by opening,
And the secondary side of the coiling group 4 is drawn around lead by conducting wire fluting 11, be equipped on the outside of the shielding case for institute
The transformer secondary pin 12 that secondary side is connected around lead is stated, and then increases the creepage distance of the magnetic core and transformer secondary output end,
Meet safety requirement under the premise of controlling size.
As the preferred embodiment of above-described embodiment scheme, the opening of the nesting skeleton 1 is equipped with buckle 13, the support
Skeleton 2 is equipped with buckle column, is coated on the magnetic core and the coiling group 4, support frame 2 by the buckle 13, buckle column
In the cavity of the nesting skeleton 1, it is easy dismounting, facilitates maintenance.
As the preferred embodiment of above-described embodiment scheme, the support frame 2 is equipped with winding slot 22, and the coiling group 4 is wrapped
It is wound on the winding slot 22 of the support frame 2.
As the preferred embodiment of above-described embodiment scheme, the transformer primary side pin 21 of the support frame 2 is located at described
Opening, the conducting wire fluting 11 are located at the other side of the opening with the transformer secondary pin 12, and then described in increase
The creepage distance of magnetic core and transformer secondary output end meets safety requirement under the premise of controlling size.
Above-described embodiment scheme makes magnetic core in any position magnetic core by nested skeleton 1 in closing or semi-closed structure
It sets, is able to satisfy safety requirement with the creepage distance of secondary conductor part, pass through the implementation of nested structure, transformer monnolithic case
Size will not become larger, and meet small form factor requirements.It does not influence original standardization transformer performance to realize, the ginseng of coil and magnetic core
Number does not make an amendment basic standardized transformer size.Transformer welding bulk can be reduced, secondary end is avoided to fly
Wire bonding.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of skeleton of transformer, it is characterised in that：
Including support frame, nested skeleton；
The support frame is equipped with transformer primary side pin, the transformer primary side for wrapping coiling group, the support frame
Pin with the primary side of coiling group around lead for connecting；
The nesting skeleton includes shielding case, has cavity inside the shielding case, and the cavity is equipped with opening, conducting wire fluting,
The support frame for being mounted with magnetic core and coiling group to be coated in the cavity of the nested skeleton by opening, and by described
Conducting wire fluting draws on the secondary side of coiling group around lead, and the shielding case is equipped with the transformation for connecting with the secondary side around lead
Device pair side pin, and then increase the creepage distance of the magnetic core and transformer secondary output end, peace is met under the premise of controlling size
Rule require.
2. a kind of skeleton of transformer as described in claim 1, it is characterised in that：
It is described nesting skeleton opening be equipped with buckle, the support frame be equipped with buckle column, by it is described buckle, buckle column will
The magnetic core and the coiling group, support frame are coated in the cavity of the nested skeleton.
3. a kind of skeleton of transformer as described in claim 1, it is characterised in that：
The support frame is equipped with winding slot, and the coiling group surrounds on the winding slot of the support frame.
4. a kind of skeleton of transformer as described in claim 1, it is characterised in that：
The transformer primary side pin of the support frame is located at the opening, and the conducting wire fluting draws with the transformer secondary
Foot is located at the other side of the opening, and then increases the creepage distance of the magnetic core and transformer secondary output end, in control size
Under the premise of meet safety requirement.
5. a kind of skeleton of transformer as described in claim 1, it is characterised in that：
The transformer secondary pin is set on the outside of the shielding case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618631.8A CN108831718A (en) | 2018-06-15 | 2018-06-15 | A kind of skeleton of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810618631.8A CN108831718A (en) | 2018-06-15 | 2018-06-15 | A kind of skeleton of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108831718A true CN108831718A (en) | 2018-11-16 |
Family
ID=64142389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810618631.8A Withdrawn CN108831718A (en) | 2018-06-15 | 2018-06-15 | A kind of skeleton of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108831718A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102995A (en) * | 2018-09-21 | 2018-12-28 | 无锡晶磊电子有限公司 | A kind of ETC type inductor and its manufacturing method |
| CN110289148A (en) * | 2019-07-12 | 2019-09-27 | 兰州科近泰基新技术有限责任公司 | A kind of electromagnet and its manufacturing method of ferrite iron core |
-
2018
- 2018-06-15 CN CN201810618631.8A patent/CN108831718A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109102995A (en) * | 2018-09-21 | 2018-12-28 | 无锡晶磊电子有限公司 | A kind of ETC type inductor and its manufacturing method |
| CN110289148A (en) * | 2019-07-12 | 2019-09-27 | 兰州科近泰基新技术有限责任公司 | A kind of electromagnet and its manufacturing method of ferrite iron core |
| CN110289148B (en) * | 2019-07-12 | 2021-06-22 | 兰州科近泰基新技术有限责任公司 | Electromagnet of ferrite core and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181116 |