WO2018228154A1 - Structure de transformateur - Google Patents

Structure de transformateur Download PDF

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Publication number
WO2018228154A1
WO2018228154A1 PCT/CN2018/088028 CN2018088028W WO2018228154A1 WO 2018228154 A1 WO2018228154 A1 WO 2018228154A1 CN 2018088028 W CN2018088028 W CN 2018088028W WO 2018228154 A1 WO2018228154 A1 WO 2018228154A1
Authority
WO
WIPO (PCT)
Prior art keywords
terminal block
positioning plate
transformer
primary terminal
hole
Prior art date
Application number
PCT/CN2018/088028
Other languages
English (en)
Chinese (zh)
Inventor
王天均
宋建峰
黄俊晓
Original Assignee
广州金升阳科技有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 广州金升阳科技有限公司 filed Critical 广州金升阳科技有限公司
Publication of WO2018228154A1 publication Critical patent/WO2018228154A1/fr

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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
    • H01F27/30—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
    • H01F27/29—Terminals; Tapping arrangements for signal inductances
    • H01F27/292—Surface mounted devices

Definitions

  • the invention relates to a transformer skeleton, in particular to an electronic transformer skeleton for satisfying safety requirements in a high-power AC-DC switching power supply.
  • the existing AC-DC switching power supply transformer skeleton generally consists of a bobbin with a center hole and a terminal block.
  • the utility model comprises a bobbin 01 with a central hole, an upper baffle 02 and a lower baffle 03 extending outwardly from both ends of the bobbin 01;
  • the upper baffle 02 is symmetrically disposed with left positioning The plate 04 and the right positioning plate 05, the left positioning plate 04 and the right positioning plate 05 extend upwardly and upwardly and have a "V"-shaped structure;
  • the lower baffle 03 is symmetrically disposed with a primary terminal block 06 and a secondary
  • the terminal block 07 and the lower surface of the primary terminal block 06 are uniformly vertically provided with the terminals 08, and the lower surface of the secondary terminal block 07 is uniformly vertically provided with the terminals 09.
  • the skeleton Due to the bilateral symmetry and the simple mold, the skeleton is easy to purchase for the market model, but the left positioning plate 04 and the right positioning plate 05 are of a "V" type structure, and the center hole of the winding column 01 is wasted.
  • the cross-sectional area of the magnetic core results in a small core area of the assembly and the magnetic flux cannot be maximized, so that the power of the transformer cannot be maximized within a limited volume, which is disadvantageous for product miniaturization.
  • FIG. 2 it is another existing transformer skeleton, which differs from FIG. 1 in that the left positioning plate 04 and the right positioning plate 05 symmetrically disposed on both sides of the upper baffle 02 extend upwardly and upwardly. Rectangular structure.
  • the electronic transformer skeleton is wound around the Litz wire as shown in FIG. 3. Since the left positioning plate 04 and the right positioning plate 05 have a rectangular structure, the core area is maximized, but when winding a very thick Litz wire, In the case of a certain height, the coil turns off and the number of turns of the coil is reduced, so that the power of the transformer is reduced, and the power of the transformer is not maximized within a limited volume, which is disadvantageous for miniaturization of the product.
  • the technician needs to design a high-power transformer.
  • the higher the power the larger the creepage distance between the core and the transformer pin terminal, and the core.
  • the creepage distance to the transformer skeleton pin is shown in Figure 4.
  • the thick line shows the creepage distance between the core to the transformer pin terminal.
  • the technician usually uses the transformer skeleton directly.
  • the height and the width of the terminal block meet the requirements of power and creepage distance, which usually makes the appearance of products using these transformers larger, which is not conducive to miniaturization of products.
  • the transformer skeleton industry has formed standardized production. There are a large number of public model products in the market. In order to save cost and standardization considerations, the existing technicians usually use the market standardized skeleton directly when designing the transformer. However, as the market changes, AC-DC switching power supply, high power and miniaturization have become the future development direction. The important material electronic transformer skeleton in AC-DC switching power supply must first be designed with high power and miniaturization to meet the future development needs of the industry.
  • the typical scheme is as follows :
  • Patent No. ZL 201520002336.1 a utility model patent entitled “Electronic Transformer Frame and Electronic Transformer for Safety Regulations”.
  • the patent superimposes the distance between the extended terminal block and the installation position of the magnetic core by two-dimensional scale, so that the three layers The position of the insulated wire is not broken to meet the requirements of the safety distance;
  • the left positioning plate and the right positioning plate of FIG. 1 of the patent are the structure of FIG. 2 of the present application, and the left positioning plate and the right positioning plate of FIG. 2 of the patent.
  • the structure adopted in Fig. 1 of the present application is the prior art;
  • the patent number is ZL 201210338985.X, the invention patent entitled “A combined adjustable transformer skeleton and a transformer using the skeleton", which is assembled by the main frame and the connector and the mounting angle of the connector Adjustment, increase clearance and creepage distance to meet standard requirements;
  • the technical problem to be solved by the present invention is to provide a transformer skeleton that maximizes the core area, the number of turns and the creepage distance within a certain volume, thereby ensuring power demand, and the transformer skeleton structure. Still very simple.
  • a transformer skeleton includes a bobbin with a central hole, an upper baffle and a lower baffle extending outwardly from both ends of the bobbin; a left positioning plate and a right positioning plate are disposed on both sides of the upper baffle; A primary terminal block and a secondary terminal block are disposed on both sides of the baffle, and the lower end surface of the primary terminal block and the secondary terminal block are vertically provided with pin terminals; the main terminal block width is greater than the secondary terminal block, the primary terminal block center A through hole is opened; the left positioning plate extends upwardly and upwardly and has a rectangular structure, and the right positioning plate extends upward and extends upwardly and has a "V"-like structure.
  • the length of the central terminal through-hole of the primary terminal block is greater than or equal to the cross-sectional diameter of the winding post after winding the Litz wire.
  • the width of the primary terminal block center through hole is greater than or equal to 1 mm.
  • the primary terminal block and the secondary terminal block are provided with a wire slot between the adjacent terminals.
  • the cross-sectional shape of the card slot is of a "U" shape.
  • the slot opening of the card slot is smaller than the slot width.
  • the present invention has the following beneficial effects:
  • the positioning plate adopts different structures, and the left positioning plate extends upward and extends upwards and has a rectangular structure, which can ensure the cross-sectional area of the transformer core is the maximum cross-sectional area, increase the magnetic flux and increase the power; the right positioning plate extends the baffle It extends vertically upwards and has a "V"-like structure.
  • the Litz wire with a very large diameter can be bent upwards when it is bent, which can ensure the number of windings of the Litz wire and increase the power.
  • the terminal block adopts different sizes, and the width of the primary terminal block is wider than that of the secondary terminal block, which can increase the creepage distance between the transformer core and the pin terminal of the transformer frame as much as possible, and ensure the minimum volume;
  • a through hole is opened in the center of the primary terminal block, which can further increase the creepage distance between the transformer core and the pin terminal of the transformer frame to meet UL and other safety requirements.
  • the terminal block is provided with a card slot between two adjacent pin terminals, which effectively fixes the winding starting and winding, avoids looseness under the condition of re-stress and can effectively prevent the winding from being overfilled and the magnetic core is in direct contact.
  • the risk of the transformer greatly improves the safety and reliability of the transformer.
  • FIG. 1 is a perspective structural view of a first prior art electronic transformer skeleton
  • FIG. 2 is a perspective structural view of a second prior art electronic transformer skeleton
  • FIG. 3 is a schematic view showing the winding of the Litz wire by the second existing electronic transformer skeleton
  • FIG. 4 is a schematic view showing the creepage distance between the magnetic core of the second existing electronic transformer and the pin terminal of the transformer frame;
  • Figure 5 is a perspective structural view of the electronic transformer skeleton of the present application.
  • Figure 6 is a front elevational view of the electronic transformer skeleton of the present application.
  • FIG. 7 is a schematic view of winding a Leeds wire using the electronic transformer skeleton of the present application.
  • FIG. 8 is a schematic diagram of the creepage distance of the core of the electronic transformer to the transformer skeleton of the present application.
  • 01 winding column
  • 02 upper baffle
  • 03 lower baffle
  • 04 left positioning plate
  • 05 right positioning plate
  • 06 primary terminal block
  • 07 secondary terminal block
  • FIG. 5 is a perspective view of the electronic transformer skeleton of the present application
  • FIG. 6 is a front view of the electronic transformer skeleton of the present application, including a bobbin 01 with a center hole, and an upper baffle extending outward from both ends of the bobbin 01 02 and the lower baffle 03; the left baffle 02 and the right baffle plate 05 are disposed on both sides of the upper baffle 02; the lower baffle 03 is provided with a primary terminal block 06 and a secondary terminal block 07 on both sides thereof, and the lower surface of the primary terminal block 06
  • a pin terminal 08 is vertically disposed, and a terminal 09 is vertically disposed on a lower surface of the secondary terminal block 07;
  • the left positioning plate 04 extends upwardly and upwardly of the baffle 02 and has a rectangular structure.
  • the right positioning plate 05 extends upwardly from the baffle 02 and has a "V"-like structure.
  • the primary terminal block 06 and the secondary terminal block 07 are slightly extended outward along the horizontal plane of the lower baffle 03, and the terminal block is disposed between the adjacent terminals with the card slot 10, 11, 12;
  • the outward extension can widen the terminal block, providing space support for opening more card slots on the side of the terminal block, and widening the horizontal mounting distance between the terminal block and the magnetic core, so that the three-layer insulated wire is not broken.
  • the groove widths of the card slots 10, 11, 12 are slightly larger than the outer diameter of each of the windings.
  • the cross-sectional shape of the card slot 10, 11, 12 is of a "U" shape, and the slot opening is slightly smaller than the slot width, and the winding of each bell wire diameter can be positioned by pulling in.
  • the primary terminal block 06 and the secondary terminal block 07 of the present embodiment adopt an asymmetric design, wherein the primary terminal block 06 has a wide width, and a through hole 13 is opened in the middle of the primary terminal block 06, thereby adding a transformer core by a double technical means.
  • the creepage distance to the lead of the transformer skeleton meets the safety requirements such as UL.
  • the length of the through hole 13 should be greater than or equal to the cross-sectional diameter of the winding post 01 after winding the Litz wire; in order to facilitate the processing of the demolding, the width of the through hole 13 is greater than or equal to 1 mm.
  • FIG. 7 is an intention to use the electronic transformer skeleton of the present application to wind the Litz wire to bend the tail. Compared with FIG. 3, it can be seen that when the thicker Litz wire is finished, the number of winding turns of FIG. 7 is significantly more than that of FIG. 4; 8 is a schematic diagram of the creepage distance of the electronic transformer core to the transformer frame pin terminal of the present application, and the thick line in FIG. 8 shows the creepage distance of the magnetic core to the transformer frame pin terminal of the present application, which is compared with FIG.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention concerne une structure de transformateur, comprenant une colonne d'enroulement (01) ayant un trou central, un déflecteur supérieur (02) et un déflecteur inférieur (03) qui s'étendent vers l'extérieur à partir de deux extrémités de la colonne d'enroulement (01) ; une plaque de positionnement gauche (04) et une plaque de positionnement droite (05) sont disposées sur deux côtés du déflecteur supérieur (02), la plaque de positionnement gauche (04) s'étend verticalement vers le haut le long du déflecteur supérieur (02) et est d'une structure rectangulaire, et la plaque de positionnement droite (05) s'étend verticalement vers le haut le long du déflecteur supérieur (02) et est d'une structure en forme de V ; une plaque à bornes primaire (06) et une plaque à bornes secondaire (07) sont disposées sur deux côtés du déflecteur inférieur (03) ; des bornes à broche (08, 09) sont disposées verticalement sur les surfaces inférieures de la plaque de bornes primaire (06) et de la plaque de bornes secondaire (07) ; la largeur de la plaque de bornes primaire (06) est supérieure à celle de la plaque de bornes secondaire (07), et un trou traversant (13) est formé au centre de la plaque de bornes primaire (06). Selon la structure de transformateur, au moyen de différentes structures de la plaque de positionnement gauche (04) et de la plaque de positionnement droite (05), les différentes largeurs de la plaque de bornes primaire (06) et de la plaque de bornes secondaire (07), et le trou traversant (13) qui est formé au centre de la plaque de bornes primaire (06), la zone d'un noyau magnétique, le nombre de tours d'enroulement et la distance de fuite sont assurés dans un certain volume au maximum possible, et par conséquent, les demandes de puissance sont assurées, et la structure du cadre de transformateur est quand même très simple.
PCT/CN2018/088028 2017-06-15 2018-05-23 Structure de transformateur WO2018228154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710450827.6A CN107170568A (zh) 2017-06-15 2017-06-15 变压器骨架
CN201710450827.6 2017-06-15

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Publication Number Publication Date
WO2018228154A1 true WO2018228154A1 (fr) 2018-12-20

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WO (1) WO2018228154A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107170568A (zh) * 2017-06-15 2017-09-15 广州金升阳科技有限公司 变压器骨架
DE202018101697U1 (de) * 2018-03-27 2018-07-05 Tridonic Gmbh & Co. Kg Niederspannungsversorgungstransformator für Schutzkleinspannungsanwendungen
CN109192479B (zh) * 2018-09-14 2023-08-15 江西欧美亚电子有限公司 一种组装式大功率驱动变压器
CN109637784A (zh) * 2018-12-27 2019-04-16 加码技术有限公司 变压器
CN110600241A (zh) * 2019-09-03 2019-12-20 深圳振华富电子有限公司 多路开关电源变压器及其制备方法
CN112420357B (zh) * 2020-10-26 2022-08-16 东莞市优琥电子科技有限公司 集成变压器以及电气设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104240919A (zh) * 2014-08-25 2014-12-24 江西省高新超越精密电子有限公司 一种具有新型结构的变压器骨架组合
CN204348492U (zh) * 2015-01-04 2015-05-20 广州金升阳科技有限公司 满足安规的电子变压器骨架及电子变压器
CN204360901U (zh) * 2015-01-12 2015-05-27 深圳市迈思普电子有限公司 小型变压器
CN205452008U (zh) * 2015-12-24 2016-08-10 台湾东电化股份有限公司 变压器的绕线架改良结构
JP2017073517A (ja) * 2015-10-09 2017-04-13 富士電機株式会社 変圧器の鉄心支持構造及び鉄心支持方法
CN107170568A (zh) * 2017-06-15 2017-09-15 广州金升阳科技有限公司 变压器骨架
CN206921654U (zh) * 2017-06-15 2018-01-23 广州金升阳科技有限公司 变压器骨架

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201698873U (zh) * 2010-04-20 2011-01-05 江苏泰昌电子有限公司 一种不对称薄型高频开关电源变压器
TWI438791B (zh) * 2013-03-13 2014-05-21 Yujing Technology Co Ltd Transformer core of the improved structure

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104240919A (zh) * 2014-08-25 2014-12-24 江西省高新超越精密电子有限公司 一种具有新型结构的变压器骨架组合
CN204348492U (zh) * 2015-01-04 2015-05-20 广州金升阳科技有限公司 满足安规的电子变压器骨架及电子变压器
CN204360901U (zh) * 2015-01-12 2015-05-27 深圳市迈思普电子有限公司 小型变压器
JP2017073517A (ja) * 2015-10-09 2017-04-13 富士電機株式会社 変圧器の鉄心支持構造及び鉄心支持方法
CN205452008U (zh) * 2015-12-24 2016-08-10 台湾东电化股份有限公司 变压器的绕线架改良结构
CN107170568A (zh) * 2017-06-15 2017-09-15 广州金升阳科技有限公司 变压器骨架
CN206921654U (zh) * 2017-06-15 2018-01-23 广州金升阳科技有限公司 变压器骨架

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