CN110556234A - Transformer with winding structure - Google Patents
Transformer with winding structure Download PDFInfo
- Publication number
- CN110556234A CN110556234A CN201810597744.4A CN201810597744A CN110556234A CN 110556234 A CN110556234 A CN 110556234A CN 201810597744 A CN201810597744 A CN 201810597744A CN 110556234 A CN110556234 A CN 110556234A
- Authority
- CN
- China
- Prior art keywords
- secondary winding
- winding
- transformer
- leg
- copper
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 143
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 27
- 239000010949 copper Substances 0.000 claims abstract description 27
- 239000012212 insulator Substances 0.000 claims abstract description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 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
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- 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
- H01F27/2847—Sheets; Strips
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
The present invention provides a transformer of a winding structure, comprising: a toroidal core, a primary winding and a secondary winding; the annular iron core is a single-magnetic-circuit iron core and comprises a first pin and a second pin which are mutually spaced and arranged in parallel; the primary winding is wound on the outer side of the first insulator of the first leg and the outer side of the second insulator of the second leg by using copper wires; the secondary winding uses copper strips, the secondary winding comprises a first secondary winding surrounding the first pin and a second secondary winding surrounding the second pin, and the first secondary winding and the second secondary winding surround the outer side of the copper wires of the primary winding; two ends of the copper strip serving as the first secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the first secondary winding to form an outlet end of the first secondary winding, and two ends of the copper strip serving as the second secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the second secondary winding to form an outlet end of the second secondary winding.
Description
Technical Field
The invention relates to a winding transformer, in particular to a transformer with a winding structure.
Background
A transformer is basically composed of two or more windings (or coils) sleeved on a closed iron core, the winding of the transformer connected with a power supply is called a primary winding or a primary winding, and the winding connected with a load is called a secondary winding or a secondary winding. The windings and the iron cores are insulated from each other. The iron core forms a magnetic circuit required for electromagnetic induction. In order to reduce the eddy current loss caused by the change of the magnetic flux, the iron core of the transformer is usually laminated by a plurality of silicon steel sheets, and the adjacent silicon steel sheets are separated by using an insulating varnish. Due to the high magnetic permeability of the silicon steel sheet, most of the magnetic flux is confined in the core, and therefore, the primary winding and the secondary winding can obtain a relatively high degree of magnetic coupling.
The dual E-type core and the E I-type core are core structures commonly found in conventional transformers, and a primary winding and a secondary winding are wound around the center of the core, and the primary winding and the secondary winding use copper wires (usually enameled wires), and the copper wires are usually wound in a manner that the primary winding and the secondary winding are wound around the same core in a coaxial relationship, one of the primary winding and the secondary winding is located in an inner circle and the other is located in an outer circle, and the primary winding and the secondary winding are separated by an insulating material.
The two E type iron cores that traditional transformer used or E I type iron core all are the iron core of a double-magnetic circuit, and the volume is great and cause the bilateral unbalance of generating heat easily, uses the primary winding and the secondary winding of copper line all to be enclosed in E type iron core the inside, and the heat dissipation is not good and the wire winding area is less.
Disclosure of Invention
The invention aims to provide a transformer with a winding structure.
in order to solve the above technical problem, an embodiment of the transformer with a winding structure according to the present invention includes: a toroidal core, a primary winding and a secondary winding; the annular iron core is a single-magnetic-circuit iron core and comprises a first pin and a second pin which are mutually spaced and arranged in parallel; the primary winding is wound on the outer side of the first insulator of the first leg and the outer side of the second insulator of the second leg by using copper wires; the secondary winding uses copper strips, the secondary winding comprises a first secondary winding surrounding the first pin and a second secondary winding surrounding the second pin, and the first secondary winding and the second secondary winding surround the outer side of the copper wires of the primary winding; two ends of the copper strip serving as the first secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the first secondary winding to form an outlet end of the first secondary winding, and two ends of the copper strip serving as the second secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the second secondary winding to form an outlet end of the second secondary winding.
The transformer of the winding structure of the present invention preferably has a first insulating member on the outer side of the first leg, a second insulating member on the outer side of the second leg, and the primary winding surrounds the first insulating member on the outer side of the first leg and the second insulating member on the outer side of the second leg.
As a preferable structure of the transformer of the winding structure of the present invention, the toroidal core is a rectangular toroidal member in which the first leg and the second leg are parallel to each other.
The preferred structure of the transformer with the winding structure of the present invention is a structure in which two L-shaped cores are connected with each other to form a ring.
As a preferred embodiment of the L-shaped iron core, two L-shaped iron cores are laminated by silicon steel sheets.
As a preferred embodiment of the L-shaped iron cores, the two ends of each L-shaped iron core are provided with the guide inclined surfaces, and the guide inclined surfaces of the two L-shaped iron cores are mutually and closely butted together. Under the condition of the same inductance, the high-efficiency low-leakage-inductance high-precision gap-free high-precision liquid crystal display has the advantages of small gap, low leakage inductance and high efficiency.
The transformer with the winding structure has the advantages that the annular iron core consisting of the two L-shaped iron cores is of a single magnetic circuit structure, has the advantage of miniaturization, and can avoid the problem of unbalanced heating; the secondary winding uses the copper strip to have great area external winding, has the heat dissipation good, reduces the advantage of leakage inductance raising efficiency, under the condition with the volume, uses the copper strip as secondary winding can make the wire winding area promote one time.
The following description of the embodiments and other advantages and effects of the present invention will be made with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is an exploded view of the construction of one embodiment of a transformer of the winding arrangement of the present invention.
Fig. 2 is an external view of the transformer with winding structure according to an embodiment of the present invention, showing the completed transformer assembly structure.
Fig. 3 is a top view of the structure of fig. 2.
Fig. 4 is a cross-sectional view of the configuration of fig. 3 at position a-a.
Fig. 5 is a configuration diagram of an embodiment of the transformer of the winding structure of the present invention, showing a configuration in which the primary winding and the secondary winding are wound around the L-shaped core.
Fig. 6 is a bottom construction view of fig. 5.
Fig. 7 is a cross-sectional view of the construction of fig. 6 at position B-B.
Fig. 8 is a configuration diagram of another embodiment of the L-shaped core of the winding structured transformer of the present invention.
Description of the symbols
10 ring-shaped iron core
11 first leg
12 second leg
13 first insulating member
14 second insulating member
20 primary winding
30 secondary winding
31 first secondary winding
311 leading-out terminal
32 second secondary winding
321 outlet terminal
40A, 40B L type iron core
Axle center of L1 first secondary winding
Axle center of L2 second secondary winding
S1, S2 lead inclined plane
Detailed Description
For a fuller understanding of the objects, features and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings, in which:
As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a term does not necessarily cover a particular element or feature of the claimed subject matter, but rather covers an exclusive inclusion, such that a claim element or feature does not necessarily cover an element or feature of the claimed subject matter.
As used herein, the terms "a" or "an" are used to describe a described element, device, etc. This is done merely for convenience of explanation and to provide a general sense of the scope of the invention. Thus, unless expressly stated otherwise, such description should be read to include one or at least one and the singular also includes the plural.
Referring first to fig. 1 and 2, there are shown an exploded view and an external view of a transformer with a winding structure according to an embodiment of the present invention. An embodiment of the winding structured transformer of the present invention comprises: a toroidal core 10, a primary winding 20 and a secondary winding 30.
Wherein the toroidal core 10 is a single magnetic circuit core, the toroidal core 10 includes a first leg 11 and a second leg 12 which are spaced apart from each other and juxtaposed, and a preferred embodiment of the toroidal core 10 is a rectangular ring assembly in which the first leg 11 and the second leg 12 are parallel to each other. In a preferred embodiment of the toroidal core 10, two L-shaped cores 40A and 40B are butted to each other to form a ring structure, wherein the two L-shaped cores 40A and 40B are stacked by silicon steel sheets.
Referring to fig. 8, a preferred embodiment of the ring core 10 is shown, in which the two L-shaped cores 40A and 40B have inclined guide surfaces S1 and S2 at both ends thereof, and the inclined guide surfaces S1 and S2 of the two L-shaped cores 40A and 40B are closely butted together. Under the condition of the same inductance, the high-efficiency low-leakage-inductance high-precision gap-free high-precision liquid crystal display has the advantages of small gap, low leakage inductance and high efficiency.
The primary winding 20 is a copper wire, the copper wire is an enameled wire with an insulating layer on the surface, and the primary winding 20 is wound around the outer sides of the first pin 11 and the second pin 12; in a preferred embodiment of the transformer of the winding structure of the present invention, in which the first leg 11 has a first insulating member 13 on the outside thereof, the second leg 12 has a second insulating member 14 on the outside thereof, the primary winding 20 is wound around the outside of the first insulating member 13 of the first leg 11 and the outside of the second insulating member 14 of the second leg 12 (see fig. 3 and 4). Wherein one embodiment of the first insulating member 13 and the second insulating member 14 is a plastic tube; in other embodiments, the first insulating member 13 and the second insulating member 14 may be plastic films or plastic papers.
The secondary winding 30 uses a copper strip, the surface of the copper strip is provided with an insulating layer, the insulating layer can be insulating varnish, a plastic film or plastic paper, the secondary winding 30 comprises a first secondary winding 31 surrounding the first pin 11 and a second secondary winding 32 surrounding the second pin 12, the first secondary winding 31 and the second secondary winding 32 surround the outer side of the copper wire of the primary winding 20, wherein two ends of the copper strip as the first secondary winding 31 are folded for 90 degrees (see the folding mode indicated by the dotted arrow in fig. 2) and extend along the same direction parallel to the axis L1 of the first secondary winding 31 to form an outlet 311 of the first secondary winding 31, and two ends of the copper strip as the second secondary winding 32 are folded for 90 degrees and extend along the same direction parallel to the axis L2 of the second secondary winding 32 to form an outlet 321 of the second secondary winding 32. The first secondary winding 31 and the second secondary winding 32 are respectively wound on the outer sides of the copper wires of the primary winding 20 by selecting the required number of copper strips according to the number of turns of the secondary winding 30 required to be wound.
Referring to fig. 5 to 7, a preferred assembly method of the transformer with winding structure of the present invention is shown, wherein the primary winding 20 is formed by a copper wire firstly surrounding a first insulating member 13 of a first leg 11 (located at the L-shaped core 40A) of the toroidal core 10 and then surrounding a second insulating member 14 of a second leg 12 (located at the L-shaped core 40B) of the toroidal core 10; then, according to the number of turns of the secondary winding 30 to be wound, the copper strips with the required number are selected to be wound on the outer side of the copper wire of the primary winding 20 to complete a first secondary winding 31 and a second secondary winding 32; finally, the two L-shaped iron cores 40A and 40B, around which the primary winding 20, the first secondary winding 31 and the second secondary winding 32 are wound, are butted with each other to form a ring structure, thereby completing the assembly of the transformer of the present invention.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
1. A transformer of winding construction, comprising: a toroidal core, a primary winding and a secondary winding; the annular iron core is a single-magnetic-circuit iron core and comprises a first pin and a second pin which are mutually spaced and arranged in parallel; the primary winding is wound outside the first leg and the second leg using copper wires; the secondary winding uses copper strips, the secondary winding comprises a first secondary winding surrounding the first pin and a second secondary winding surrounding the second pin, and the first secondary winding and the second secondary winding surround the outer side of the copper wires of the primary winding; two ends of the copper strip as the first secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the first secondary winding to form an outlet end of the first secondary winding, and two ends of the copper strip as the second secondary winding are folded by 90 degrees and then extend along the same direction parallel to the axis of the second secondary winding to form an outlet end of the second secondary winding.
2. A transformer having a winding structure according to claim 1, wherein: the outer side of the first leg is provided with a first insulating part, and the outer side of the second leg is provided with a second insulating part; the primary winding surrounds the outside of the first insulator of the first leg and the outside of the second insulator of the second leg.
3. A transformer having a winding structure according to claim 2, wherein: the first insulating member and the second insulating member may be plastic tubes, plastic films, or plastic papers.
4. A transformer having a winding structure according to claim 1, wherein: the copper wire of the primary winding is an enameled wire with an insulating layer on the surface, the copper wire is provided with an insulating layer on the surface, and the insulating layer of the copper wire can be insulating paint, a plastic film or plastic paper.
5. A transformer having a winding structure according to claim 1, wherein: the annular iron core is a rectangular annular component, and the first leg and the second leg are parallel to each other.
6. A transformer having a winding structure according to claim 1, wherein: the annular iron core is in an annular structure formed by mutually and oppositely connecting two L-shaped iron cores.
7. The winding structured transformer of claim 6, wherein: the two L-shaped iron cores are laminated by silicon steel sheets.
8. The winding structured transformer of claim 6, wherein: the two ends of each L-shaped iron core are provided with guide inclined planes, and the guide inclined planes of the two L-shaped iron cores are mutually closely butted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597744.4A CN110556234B (en) | 2018-05-31 | 2018-05-31 | Transformer with winding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810597744.4A CN110556234B (en) | 2018-05-31 | 2018-05-31 | Transformer with winding structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110556234A true CN110556234A (en) | 2019-12-10 |
| CN110556234B CN110556234B (en) | 2024-06-14 |
Family
ID=68736108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810597744.4A Active CN110556234B (en) | 2018-05-31 | 2018-05-31 | Transformer with winding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110556234B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223328A (en) * | 1999-02-03 | 2000-08-11 | Meidensha Corp | Transformer winding |
| JP2002353047A (en) * | 2001-05-25 | 2002-12-06 | Sumida Corporation | Inverter transformer |
| CN203799837U (en) * | 2014-04-26 | 2014-08-27 | 浙江安德利变压器有限公司 | Amorphous alloy transformer |
| CN205016355U (en) * | 2015-09-15 | 2016-02-03 | 江苏泰昌电子有限公司 | Range upon range of formula transformer |
| CN105375536A (en) * | 2014-08-07 | 2016-03-02 | 辉达公司 | Magnetic power coupling to integrated circuit module |
| CN105655098A (en) * | 2014-11-14 | 2016-06-08 | 中国长城计算机深圳股份有限公司 | Transformer and method for manufacturing same |
| CN205542333U (en) * | 2016-03-16 | 2016-08-31 | 光宝电子(广州)有限公司 | Transformer structure |
| CN106409480A (en) * | 2016-11-07 | 2017-02-15 | 广安市华蓥山领创电子有限公司 | Rounding type planar transformer and manufacturing method thereof |
| CN106908636A (en) * | 2017-01-23 | 2017-06-30 | 宁波中车时代传感技术有限公司 | A kind of novel magnetic circuit |
| CN107768113A (en) * | 2017-11-24 | 2018-03-06 | 广州广日电气设备有限公司 | Transformer and its production method |
| CN208478093U (en) * | 2018-05-31 | 2019-02-05 | 东莞劲华电子有限公司 | The transformer of winding construction |
-
2018
- 2018-05-31 CN CN201810597744.4A patent/CN110556234B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000223328A (en) * | 1999-02-03 | 2000-08-11 | Meidensha Corp | Transformer winding |
| JP2002353047A (en) * | 2001-05-25 | 2002-12-06 | Sumida Corporation | Inverter transformer |
| CN203799837U (en) * | 2014-04-26 | 2014-08-27 | 浙江安德利变压器有限公司 | Amorphous alloy transformer |
| CN105375536A (en) * | 2014-08-07 | 2016-03-02 | 辉达公司 | Magnetic power coupling to integrated circuit module |
| CN105655098A (en) * | 2014-11-14 | 2016-06-08 | 中国长城计算机深圳股份有限公司 | Transformer and method for manufacturing same |
| CN205016355U (en) * | 2015-09-15 | 2016-02-03 | 江苏泰昌电子有限公司 | Range upon range of formula transformer |
| CN205542333U (en) * | 2016-03-16 | 2016-08-31 | 光宝电子(广州)有限公司 | Transformer structure |
| CN106409480A (en) * | 2016-11-07 | 2017-02-15 | 广安市华蓥山领创电子有限公司 | Rounding type planar transformer and manufacturing method thereof |
| CN106908636A (en) * | 2017-01-23 | 2017-06-30 | 宁波中车时代传感技术有限公司 | A kind of novel magnetic circuit |
| CN107768113A (en) * | 2017-11-24 | 2018-03-06 | 广州广日电气设备有限公司 | Transformer and its production method |
| CN208478093U (en) * | 2018-05-31 | 2019-02-05 | 东莞劲华电子有限公司 | The transformer of winding construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110556234B (en) | 2024-06-14 |
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