CN108492967A - transformer manufacturing method and transformer - Google Patents
transformer manufacturing method and transformer Download PDFInfo
- Publication number
- CN108492967A CN108492967A CN201810502412.3A CN201810502412A CN108492967A CN 108492967 A CN108492967 A CN 108492967A CN 201810502412 A CN201810502412 A CN 201810502412A CN 108492967 A CN108492967 A CN 108492967A
- Authority
- CN
- China
- Prior art keywords
- pcb board
- hole
- upper shell
- lower housing
- transformer
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 238000004080 punching Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/125—Other insulating structures; Insulating between coil and core, between different winding sections, around the coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of transformer and transformer manufacturing method, wherein transformer manufacturing method includes the following steps：1) primary coil, is etched in pcb board；2) base enclosure at least coating pcb board upper and lower surface, is formed using ejection forming technique, base enclosure includes upper shell and lower housing, and placing groove is both provided on upper shell and lower housing；3) secondary coil, is placed in the placing groove on upper shell and lower housing respectively and is molded fixation；4) upper magnetic core and lower magnetic core, are respectively clamped on upper shell and lower housing；Transformer manufacturing method of the present invention forms base enclosure using ejection forming technique outside the pcb board for being etched with primary coil, thus insulation spacer need not be assembled respectively in the both sides up and down of pcb board, this reduces mass production processes, reduce most worker's demand, shorten flow time, yield is greatly improved, and completely avoids product quality deviation caused by manual operation before formed product.
Description
Technical field
The present invention relates to transformer technology field more particularly to a kind of transformer systems for being easily installed, simplifying production routine
Make method and transformer.
Background technology
With the development of science and technology with the change of human life style, the type of portable electronic device is more and more, simultaneously
Increasingly develop toward miniaturization, the adapter for using dimension, transformation are needed when charging to portable electronic device
Device is most important electrical equipment in adapter, and which carry the charging power consumptions of adapter.The basic structure of transformer is iron core
And coil, traditional transformer are that multiturn coil is wound on iron core, using the transformer device structure of this structure and the mode of production
Simply, but be unfavorable for assembling and it is miniature.In view of the little feature of portable electronic device charge power, recently, PCB is generally used
Primary coil unit of the board coil as wattage transformer, i.e., etch primary coil on pcb board, is then folded on pcb board
Secondary coil and insulation spacer etc. are put, the modular production of transformer has been achieved, but this mode of production, process are numerous
It is multiple, it needs to complete by multiple tracks hand assembled program, is unfavorable for the optimization of production technology.
Invention content
The object of the present invention is to provide a kind of transformer manufacturing methods to improve production efficiency to simplify the technological process of production.
It is a further object of the present invention to provide a kind of transformers to improve production efficiency in order to produce installation.
To achieve the goals above, the invention discloses a kind of transformer manufacturing method, include the following steps：
1) primary coil, is etched in pcb board, and the first through hole through its upper and lower surface, institute are offered on the pcb board
Primary coil is stated to arrange around the first through hole；
2) base enclosure at least coating the pcb board upper and lower surface, is formed using ejection forming technique, the base enclosure includes upper
Shell and lower housing are provided through the second through-hole of the upper shell and the lower housing in the base enclosure, and described second is logical
Hole is coaxial with the first through hole and is adapted；
The placing groove around second through-hole is both provided on the upper shell and the lower housing；
3) secondary coil, is placed in the placing groove on the upper shell and the lower housing respectively and is molded fixation；
4) upper magnetic core and lower magnetic core, are respectively clamped on upper shell and lower housing.
Compared with prior art, transformer manufacturing method of the present invention is being etched with primary coil using ejection forming technique
Base enclosure is formed outside pcb board, thus need not assemble insulation spacer respectively in the both sides up and down of pcb board, this reduces a large amount of raw
Produce process, reduce most worker's demand, shorten flow time, greatly improve yield, and completely avoid product at
Then product quality deviation caused by manual operation before type places secondary coil in the placing groove of base enclosure and is molded fixation,
Then with upper magnetic core and lower core combination, to effectively improve production efficiency, and be conducive to improve product safety parameter.
Preferably, upper and lower surface of the primary coil away from the plate layer of the pcb board where it have certain insulation away from
From.
Preferably, the secondary coil is the flatwise coil being made using punch forming process, the secondary coil
Outside be provided with the first pin being stamped to form, first pin is used for and external circuit is electrically connected.
In addition, the invention also discloses a kind of transformer, it is suitable for adapters, including：
Pcb board is provided with the first through hole through its upper and lower surface, is etched in the pcb board around described
The primary coil of one through-hole arrangement；
Base enclosure comprising the upper shell and lower housing at least coating the pcb board upper and lower surface, the upper casing
Body and the lower casing body by integral forming are provided through the second through-hole of the upper shell and the lower housing in the base enclosure,
Second through-hole is coaxial with the first through hole and is adapted；
Be both provided with the placing groove around second through-hole on the upper shell and the lower housing, the upper shell and
It is both provided with secondary coil in the placing groove of the lower housing；
Upper magnetic core and lower magnetic core, the upper magnetic core and the lower magnetic core cover conjunction in the upper shell and the lower housing respectively
On.
Compared with prior art, transformer disclosed by the invention is provided with integrally formed base enclosure, and base enclosure outside pcb board
On be provided with placing groove, when installation, secondary coil need to be only placed in placing groove, then cover magnetic core and lower magnetic core i.e.
Can, above-mentioned transformer device structure is conducive to optimized production process flow, to reduce working hour, reduces production cost, and compared to biography
The structure in the exterior gaskets of PCB of system, the present invention are conducive to the raising of safety parameter using integrally formed base enclosure, improve good
The service life of product rate and product.
Preferably, the pcb board includes multi-layer board layer, the primary coil is etched in each laminate layer.
Preferably, upper and lower surface of the primary coil away from the plate layer where it in each laminate layer have it is certain exhausted
Edge distance.
Preferably, the insulation distance is 0.2mm.
Preferably, the secondary coil is punching press flatwise coil, it is provided on the outside of the secondary coil and is stamped to form
First pin, first pin are used to be electrically connected with external circuit.
Description of the drawings
Fig. 1 is the decomposition texture schematic diagram of transformer of the embodiment of the present invention.
Fig. 2 is the dimensional structure diagram of the pcb board on transformer of the embodiment of the present invention.
Fig. 3 is distribution schematic diagram of the primary coil of transformer of the embodiment of the present invention in pcb board.
Fig. 4 is the dimensional structure diagram of the base enclosure of transformer of the embodiment of the present invention.
Fig. 5 is the dimensional structure diagram of the secondary coil of transformer of the embodiment of the present invention.
Specific implementation mode
For technology contents, structure feature, realization principle and the objects and the effects that the present invention will be described in detail, tie below
It closes embodiment and attached drawing is coordinated to be explained in detail.
The invention discloses a kind of transformers, as shown in Figure 1, Figure 4 and Figure 5, including pcb board 1, base enclosure 2, upper magnetic core 40 with
And lower magnetic core 41.It is provided through the first through hole 11 of its upper and lower surface on pcb board 1, is etched in pcb board 1 logical around first
The primary coil 10 that hole 11 is arranged.Base enclosure 2 includes the upper shell 20 and lower casing at least coating 1 upper and lower surface of pcb board
Body 21, upper shell 20 and lower housing 21 are integrally formed, and the second through-hole of upper shell 20 and lower housing 21 is provided through in base enclosure 2
22, the second through-hole 22 is coaxial with first through hole 11 and is adapted, and is both provided on upper shell 20 and lower housing 21 logical around second
It is both provided with secondary coil 3 in the placing groove 23 of the placing groove 23 in hole 22, upper shell 20 and lower housing 21.Upper magnetic core 40 and lower magnetic
Core 41 covers conjunction on upper shell 20 and lower housing 21 respectively, and the magnetic pole 42 of upper magnetic core 40 and lower magnetic core 41 is from first through hole 11 and the
Two through-holes 22 pass through.
Transformer with above structure is provided with integrally formed base enclosure 2 outside pcb board 1, and is provided with and puts in base enclosure 2
It sets slot 23, when installation, secondary coil 3 need to be only placed in placing groove 23, then cover magnetic core 40 and lower magnetic core 41,
Above-mentioned transformer device structure is conducive to optimized production process flow, to reduce working hour, reduces production cost, and compared to traditional
In the structure of the exterior gasket of pcb board, the present invention is conducive to the raising of safety parameter using integrally formed base enclosure 2, improves good
The service life of product rate and product.
In addition, the invention also discloses a kind of manufacturing method of the transformer with above structure, include the following steps：
1) primary coil 10, is etched in pcb board 1, primary coil 10 is arranged around first through hole 11；
2) base enclosure 2 of at least upper and lower surface of cladding pcb board 1, is formed using ejection forming technique；
3) secondary coil 3, is placed respectively in the placing groove 23 on upper shell 20 and lower housing 21 and is molded fixation；
4) upper magnetic core 40 and lower magnetic core 41, are respectively clamped on upper shell 20 and lower housing 21.
Transformer manufacturing method of the present invention is formed using ejection forming technique outside the pcb board 1 for being etched with primary coil 10
Base enclosure 2 thus need not assemble insulation spacer respectively in the both sides up and down of pcb board 1, and a procedure is only needed to can be completed,
This reduces mass production process, most worker's demand is reduced, shortens flow time, greatly improves yield, and
Completely avoid product quality deviation caused by manual operation before formed product.
In order to further increase safety parameter, Fig. 2 and Fig. 3 are please referred to, transformer manufacturing method of the present invention is in pcb board
In 1 when etching primary coil 10, the upper and lower surface of plate layer of the primary coil 10 away from pcb board 1 where it have certain insulation away from
From d, preferably, insulation distance d is 0.2mm.In the actual production process, pcb board 1 generally comprises multi-laminate splice layer,
It is etched with primary coil 10 in each plate layer, in the present embodiment, the primary coil 10 in each plate layer is away from plate layer where it
Upper and lower surface has the insulation distance d of 0.2mm.
In addition, in order to be further simplified technological process, in another embodiment of transformer manufacturing method of the present invention, incorporated by reference to
Refering to Fig. 5, secondary coil 3 is the flatwise coil being made using Sheet Metal Forming Technology, the line formed compared to traditional winding method
Circle, stamped coil has the advantages that speed of production is fast, at low cost, and can and meanwhile punching press bend out for being connect with external circuit
The first pin 30, eliminate again individually on secondary coil 3 welding signal pin process.
In addition, for the ease of the transformer of the present invention to be installed on circuit board, it is additionally provided on pcb board 1 and external electrical
The second pin 12 of road connection.
Above disclosed is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (8)
1. a kind of transformer manufacturing method, which is characterized in that include the following steps：
1) primary coil, is etched in pcb board, and the first through hole through its upper and lower surface is offered on the pcb board, it is described first
Grade coil is arranged around the first through hole；
2) base enclosure for the upper and lower surface at least coating the pcb board, is formed using ejection forming technique, the base enclosure includes upper casing
Body and lower housing are provided through the second through-hole of the upper shell and the lower housing, second through-hole in the base enclosure
It is coaxial with the first through hole and be adapted；
The placing groove around second through-hole is both provided on the upper shell and the lower housing；
3) secondary coil, is placed in the placing groove on the upper shell and the lower housing respectively and is molded fixation；
4) upper magnetic core and lower magnetic core, are respectively clamped on upper shell and lower housing.
2. transformer manufacturing method according to claim 1, which is characterized in that the primary coil is away from described in its place
The upper and lower surface of the plate layer of pcb board has certain insulation distance.
3. transformer manufacturing method according to claim 1, which is characterized in that the secondary coil is using punch forming
The flatwise coil that technique is made is provided with the first pin being stamped to form on the outside of the secondary coil, and described first draws
Foot is used to be electrically connected with external circuit.
4. a kind of transformer, it is suitable for adapters, which is characterized in that including：
Pcb board is provided with the first through hole through its upper and lower surface, is etched in the pcb board logical around described first
The primary coil of hole arrangement；
Base enclosure comprising the upper shell and lower housing at least coating the upper and lower surface of the pcb board, the upper shell
With the lower casing body by integral forming, the second through-hole of the upper shell and the lower housing, institute are provided through in the base enclosure
It is coaxial with the first through hole and be adapted to state the second through-hole；
It is both provided with the placing groove around second through-hole on the upper shell and the lower housing, the upper shell and described
It is both provided with secondary coil in the placing groove of lower housing；
Upper magnetic core and lower magnetic core, the upper magnetic core and the lower magnetic core cover conjunction on the upper shell and the lower housing respectively.
5. transformer according to claim 4, which is characterized in that the pcb board includes multi-layer board layer, each laminate
It is etched with the primary coil in layer.
6. transformer according to claim 5, which is characterized in that the primary coil in each laminate layer is away from where it
The upper and lower surface of plate layer have certain insulation distance.
7. transformer according to claim 6, which is characterized in that the insulation distance is 0.2mm.
8. transformer according to claim 4, which is characterized in that the secondary coil is punching press flatwise coil, described secondary
The first pin being stamped to form is provided on the outside of grade coil, first pin is used to be electrically connected with external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502412.3A CN108492967A (en) | 2018-05-23 | 2018-05-23 | transformer manufacturing method and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810502412.3A CN108492967A (en) | 2018-05-23 | 2018-05-23 | transformer manufacturing method and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108492967A true CN108492967A (en) | 2018-09-04 |
Family
ID=63351536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810502412.3A Pending CN108492967A (en) | 2018-05-23 | 2018-05-23 | transformer manufacturing method and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108492967A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256261A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
| CN110233028A (en) * | 2019-06-03 | 2019-09-13 | 深圳顺络电子股份有限公司 | A kind of pcb board of flat surface transformer and preparation method thereof |
| CN110853892A (en) * | 2019-10-29 | 2020-02-28 | 昆山杰顺通精密组件有限公司 | Planar transformer and manufacturing method thereof |
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| CN2437027Y (en) * | 2000-06-22 | 2001-06-27 | 帝闻企业股份有限公司 | Glue filled transformer |
| CN101533705A (en) * | 2008-11-28 | 2009-09-16 | 东莞创慈磁性元件有限公司 | High-power planar transformer |
| CN102543391A (en) * | 2010-12-22 | 2012-07-04 | 台达电子工业股份有限公司 | Transformer structure |
| WO2013148644A1 (en) * | 2012-03-27 | 2013-10-03 | Pulse Electronics, Inc. | Flat coil planar transformer and methods |
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| CN205542333U (en) * | 2016-03-16 | 2016-08-31 | 光宝电子(广州)有限公司 | Transformer structure |
| CN205828101U (en) * | 2016-07-22 | 2016-12-21 | 深圳市鸿泰达实业有限公司 | A kind of combination type platypelloid type high frequency transformer |
| CN206282700U (en) * | 2016-12-08 | 2017-06-27 | 东莞铭普光磁股份有限公司 | A kind of TV power supplys multi-layer PCB XY switch power transformer |
| CN208315348U (en) * | 2018-05-23 | 2019-01-01 | 东莞联宝光电科技有限公司 | transformer |
-
2018
- 2018-05-23 CN CN201810502412.3A patent/CN108492967A/en active Pending
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| CN2201715Y (en) * | 1994-08-19 | 1995-06-21 | 威海市丰源焊接设备厂 | Transformer coil |
| CN2437027Y (en) * | 2000-06-22 | 2001-06-27 | 帝闻企业股份有限公司 | Glue filled transformer |
| CN101533705A (en) * | 2008-11-28 | 2009-09-16 | 东莞创慈磁性元件有限公司 | High-power planar transformer |
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| CN105206404A (en) * | 2015-10-22 | 2015-12-30 | 东莞市昱懋纳米科技有限公司 | Transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256261A (en) * | 2018-10-23 | 2019-01-22 | 深圳市海勤科技有限公司 | A kind of transformer avoiding transformer rosin joint and its skeleton structure |
| CN109256261B (en) * | 2018-10-23 | 2023-12-15 | 深圳市海勤科技有限公司 | Transformer for avoiding transformer cold joint and framework structure thereof |
| CN110233028A (en) * | 2019-06-03 | 2019-09-13 | 深圳顺络电子股份有限公司 | A kind of pcb board of flat surface transformer and preparation method thereof |
| CN110853892A (en) * | 2019-10-29 | 2020-02-28 | 昆山杰顺通精密组件有限公司 | Planar transformer and manufacturing method thereof |
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