TW200820280A - Micro transformer and manufacturing method thereof - Google Patents

Micro transformer and manufacturing method thereof Download PDF

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Publication number
TW200820280A
TW200820280A TW97100542A TW97100542A TW200820280A TW 200820280 A TW200820280 A TW 200820280A TW 97100542 A TW97100542 A TW 97100542A TW 97100542 A TW97100542 A TW 97100542A TW 200820280 A TW200820280 A TW 200820280A
Authority
TW
Taiwan
Prior art keywords
transformer
plastic
mold
micro
reel
Prior art date
Application number
TW97100542A
Other languages
Chinese (zh)
Inventor
xue-yong Zhai
Original Assignee
Delta Electronics Inc
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 Delta Electronics Inc filed Critical Delta Electronics Inc
Priority to TW97100542A priority Critical patent/TW200820280A/en
Publication of TW200820280A publication Critical patent/TW200820280A/en

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Abstract

This invention discloses a micro transformer and a manufacturing method thereof. The manufacturing method comprises steps of providing an iron core, placing the iron core in a mold, injecting plastic material into the mold, solidifying the plastic material to form a scroll which is made to tightly wrap around the iron core. The micro transformer comprises an iron core and a scroll which is tightly wrapped around the iron core, in which the scroll is directly formed through a mold. This invention employs an integrally forming method to make a scroll tightly wrap around an iron core so that the manufacturing process can be simplified, the manufacturing and assembly costs can be reduced, defects during electronic component assembly process is prevented, and reliability and excellence of products are increased.

Description

200820280 IX. Description of the Invention: [Technical Field] The present invention relates to a micro-transformer structure for use in an optical device such as a video camera or a small electronic device, and a method of manufacturing the same. [Prior Art] In the prior art, in some miniaturized or miniaturized digital products, it is necessary to use a transformer to boost the low voltage of the power supply battery to a high voltage in order to realize its function of use, such as charging flash, etc., due to digital The size of the product is small, so the size of the transformer is very small and cannot occupy too much space. The structure of the existing transformer, as shown in FIG. 2 and FIG. 2, is composed of two independent seat bodies 7, 8 and an iron core, which has the following disadvantages: two independent seat bodies 7, 8 are assembled with the iron core. Inconvenient 'The production process is complicated and high, and the finished product made with this structure is unstable in characteristics and has a high defect rate. SUMMARY OF THE INVENTION An object of the present invention is to provide a micro-transformer structure and a manufacturing method thereof that can be used for a coating process, reduce production and assembly costs, avoid defects caused by assembly of electronic components, and improve product reliability and excellent rate. The micro-variable (4) provided by the present invention and the manufacturing method thereof comprise the following steps: providing an iron, a magnetic material, having a notch on the mold (4); placing the iron core into the mold, injecting a plastic to Inside the mold, and curing the plastic to form a reel so that the reel tightly covers the periphery of the core. 200820280 The micro-transformer provided by the present invention comprises an iron core and a reel. The iron core is made of magnetic material, and the iron core has a notch so as to be fixed on the mold. The reel is composed of a flange portion and an extension portion to tightly pack. The periphery of the core is covered, wherein the reel is directly molded into the plastic by a mold. As described above, a micro-transformer and a method of manufacturing the same according to the present invention directly molds a reel around a periphery of a core by a die, and the present invention compacts the reel by an integral molding method as compared with the prior art. Covering the periphery of the core, it can simplify the process, reduce the production and assembly costs, avoid the defects caused by the assembly process of electronic components and improve the reliability and excellent rate of the product. [Embodiment] Hereinafter, a micro-transformer and a method of manufacturing the same according to a preferred embodiment of the present invention will be described with reference to the related drawings. °
Referring to Figures 3 to 8, a miniature transformer of the present invention is provided with a transformer reel transformer core 2, wherein the transformer core 2 is an elongated magnetic material, and the transformer reel 1 has flanges at both ends thereof. The portions 101, 102, the flange portions 1〇1, 1〇2 cover the short ends 201, 202 of the transformer core 2, and the flange portions 101, 102 are connected by two extension portions 1〇3, 1〇4 In one embodiment, the extensions 103, 104 cover the two long ends 203, 204 of the transformer core 2, and the transformer reel 1 is directly formed by the mold 6 to tightly cover the periphery of the transformer core 2. In the method for manufacturing a micro-transformer of the present invention, as shown in FIGS. 8 and 9, the manufacturing method includes steps S01 to S03; and step s〇1 provides a transformer core 2 which is known as a magnetic strip. Material; step S〇2 is to place the transformer core 2 into the upper mold cavity or the lower cover cavity 62 in the mold 6; after step S〇3, a plastic is injected into the mold to make the plastic tightly packed iron Core 2 is surrounded by four. In the mold of the embodiment, the structure of the upper mold cavity 61 and the lower cover mold cavity 62纟, the pressure transformer 5|iron* transformer reel 相对 is designed correspondingly, and the 注 注 can be used as a shop, ^如^ 6 200820280 Cure plastic, thermosetting plastic or photocurable plastic. When plastic is injected into the mold, it can be injection molded so that the plastic tightly covers the periphery of the transformer core 2, and the plastic is tightly covered with the transformer iron. After the periphery, the manufacturing method of the micro-transformer further includes a step 4, that is, curing the plastic, wherein the curing method can be cooled, cured, or cured according to the type of the plastic. After curing, the plastic will form the transformer reel 1. Thus, the transformer reel 1 is directly formed and tightly wrapped around the transformer core 2, so the transformer reel 1 and the transformer core 2 have good tightness and avoid assembly. Not stable. Further, in the above-described micro-transformer, as shown in Fig. 5, wiring electrodes 3, 4, 5 are further provided on the two flange portions 1?1, 1? 2; the electrodes 3, 4 are provided on the flange portion 101. The electrode 5 is disposed on the flange portion 102 and connected to the core 2 by wires. In summary, the micro-transformer and the manufacturing method thereof of the present invention directly form a transformer reel by a single mold and closely cover the periphery of the transformer core. Compared with the prior art, the present invention adopts an integral molding method to save labor. The man-hour and cost of assembly can make the transformer reel directly form and cover the periphery of the transformer core, which can simplify the process, reduce the production and assembly costs, avoid the defects caused by the assembly process of electronic components and improve the reliability of the product. Yield. [Simple diagram of the diagram] φ Fig. 1 is a schematic diagram of a structure of a conventional micro-transformer. Figure 2 is a schematic view of another seat structure in a conventional micro-transformer. Fig. 3 is a perspective view showing the appearance of a miniature transformer and a method of manufacturing the same according to the present invention. Figure 4 is a side view of a miniature transformer of Benfing and a method of manufacturing the same. Fig. 5 is a top cross-sectional view showing a micro-transformer and a method of manufacturing the same according to the present invention. Figure 6 is a cross-sectional view showing the other side of a micro-transformer and a method of manufacturing the same according to the present invention. Figure 7 is a bottom plan view of a micro-transformer and a method of manufacturing the same according to the present invention. - Figure 8 is a schematic view of a mold of a miniature transformer and a method of manufacturing the same according to the present invention. - Fig. 9 is a flow chart showing a manufacturing method of a micro-transformer and a method of manufacturing the same according to the present invention. 7 200820280 [Description of main component symbols] Reel...1 Flange portion 102 Extension portion 104 Core short end 202 Flange portion 101 Extension portion 103 Iron core: 2 ^ Iron core short end 201 Electrode 3 Electrode 4 Electrode 5 • Mold 6 Lower cover cavity 62 Upper cover cavity 61 Conventional seat 7 Conventional seat 8

Claims (1)

  1. 200820280 X. Patent application scope: 1. A miniature transformer and a manufacturing method thereof, the manufacturing method comprising the following steps: providing an iron core, placing the iron core in a mold, injecting a plastic into the mold, and curing the plastic Forming a reel so that the reel tightly covers the periphery of the transformer core; a miniature transformer comprising: • an iron core of elongated magnetic material; a reel having flanges at both ends thereof, the flange The portion is connected to the extension portion to integrally cover the periphery of the core, and the reel is injected into a plastic by a mold and solidifies the plastic direct molder. 2. A method of manufacturing a micro-transformer according to the first aspect of the invention, wherein the plastic can be injected by injection molding. 3. The method of manufacturing a micro-transformer according to claim 1, wherein the plastic curing method is cooling curing, heat curing or curing. 4. The method of manufacturing a micro-transformer according to claim 1, wherein the plastic is solidified to form a reel of the micro-transformer. 5. A method of manufacturing a micro-transformer according to claim 1, wherein the cavity in the mold is designed corresponding to the structure of the core and the reel. ”
TW97100542A 2008-01-07 2008-01-07 Micro transformer and manufacturing method thereof TW200820280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97100542A TW200820280A (en) 2008-01-07 2008-01-07 Micro transformer and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97100542A TW200820280A (en) 2008-01-07 2008-01-07 Micro transformer and manufacturing method thereof

Publications (1)

Publication Number Publication Date
TW200820280A true TW200820280A (en) 2008-05-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW97100542A TW200820280A (en) 2008-01-07 2008-01-07 Micro transformer and manufacturing method thereof

Country Status (1)

Country Link
TW (1) TW200820280A (en)

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