TW200419603A - Choke and manufacturing method thereof - Google Patents

Abstract

A choke is disclosed. The choke is formed of a wrapped coil, a coil body disposed therein, and an electrode portion extended from both ends of the coil, which is characterized in that: the coil body is a continuous, electrically conductive and spiral coil formed by thin metal sheet.

Description

200419603 V. Description of the invention (1) [The invention to which the present invention belongs is a method for high current and high current. [Prior art] It is well known that, in recent years, the manufacturing method has been proposed to be light, thin, short, and small. 6,204,744 B1 The shape is as shown in Figure 1A, which includes a pole 18, And please refer to the 1st. B is a rectangular flat with a large number of turns 30, and the wires 16 and the second guide and the coil 24 are welded with wires 16 and 18 on the inside. The line is missing in the United States: 1. Although the technical field of the coil is light, thin, coil and its manufacturing method, in particular, it refers to a short and small current-resistant coil inductor and its manufacture. Improvements make requests. As shown in the patent case, the reactance 14 is formed from the circuit board drawing and the 1C wire to include the inner terminal 18 of the lead terminal 2 6 and the outer coil 24 after the weight is turned. No. 6, 204, is a right-angle, mainly by a single person has been proposed more than in the current 2001, has been proposed in the first-class coil 10 series of welding points extending out of the body 20 drawing, the anti-current coil 24, terminal 2 6 and an outer coil The high-tech approved improvements of this solution can be embedded with the first and 22 phase coils 1 0 coils and the side ends 2 8 The wire frame 32 is welded with its two side ends 2 8 It becomes a part of the body which is placed in the mold and the lead frame 3 2 and is intended to be computer-made in the United States. But Li became a snail's pack of end 3 4 bodies. However, after the mold is broken, that is, the structure of the electrodes and the coils, the circuit board 12 and the second electrical section have a spiral shape, including the first and 38, respectively, and the magnetic material is injected into the US 744 B1. The current-resistant coil of No. 1 is still formed by winding the flat wire in the following shape,

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And it becomes a whole, and its manufacturing steps are greatly reduced. In the process, the chances of the formation rate are also greatly reduced, the manufacturing speed is faster, and the production capacity can be achieved. This is another object of the present invention. According to the present invention, such a current-resistant coil and the manufacturing method thereof can be produced by simple punching and welding equipment, and can be produced without the need for complicated equipment, and it can perform a consistent operation. Another object of the invention. As for the detailed structure, application principle, function and effect of the present invention, it can be fully understood with reference to the following description made with reference to the accompanying drawings. [Embodiment of the present invention] The structure, manufacturing process and disadvantages of the current-resistant coil of US Pat. No. 6,204,744 B1 shown in FIGS. 1A to 1C have been described above, and will not be repeated here. . As shown in FIG. 2A, the current-resistant coil of the present invention is composed of a coil covering body 50, a coil body 60 provided therein, and electrode portions 70, 80 extending from both ends of the coil body 60. . Among them, the coil covering body 50 is a molded body made of magnetic material powder and covering the coil body; the coil body 60 is composed of two thin metal conductive sheets 6 1 and 6 that are spiraled, and The central end portion connects two thin metal conductive pieces by welding or other methods to form a single continuous spiral coil; two electrode pieces 70, 80 extending outward from the two ends of the coil body 60, It constitutes a contact point for connecting with the circuit; the above-mentioned coil body 60 can be covered with insulating material to avoid two spiral gold

The conductive pieces 61 and 62 overlap each other and are energized, which causes the coil 60 portion to not be a single A but continuous state. Moreover, the two electrode pieces 70, 8 H +, υ extending outward can also be applied to the coil cover. The surface angle of 50 is bent to make it a double-sided electrode.

200419603 V. Description of the invention (4) The circuit contacts are connected in different forms, as shown in Figures 2B and 2C. The electrode pads 70 and 80 can also be used;? 〇2 ... ♦ · '8〇1 State ... state, and the insert can also be set on both sides or one side of the thick 50, making it a pin-type current-resistant coil. _ ^ The manufacturing method of the current-resistant coil is as shown in Figures 3A to 3e :: using a conductive metal sheet (for example, a copper sheet is preferred), stamped into -ι'οι! 〇1100 '2〇 ° '' 0 wood, 'and the support plate 102 bZ extending from the side of the base frame 101, 102-, and between the base wood 101, 102, and there is a material strip 104 (gamma-shaped as shown in Figure 3A). Two sets of lead frames 100, _ are obtained after getting tired, = ί end portions 610, 620 of the metal conductive sheets 61, 62 'and rhyme = Λ \ support plates 102 on both sides of the electrical sheets 61, 62,] 03, 202 ♦ > Mitutoyo, Asia and welded together (the situation is shown in Figure 3B), this: even: two spiral metal conductive pieces 61, 62 are to be formed before;: = spiral coil, so Before soldering, the conductive metal coils 61 and 62 other than the ends are covered with an insulating "two or two spiral metal conductors 61 and 62 after welding at the ends, and the conductive spiral coil 60; while the support plates 102, 103,-step: = after overlapping and welding at the end, 'constructs a supporting structure, so that the conductive spiral coils formed by the lower and / ,, y connection, 60 part It is placed in the first two of the mold i = the base frame 10: 1, 102 and the support plates 102, 103, 20 2, 203, and the support is formed; the mold is filled with magnetic material powder, and then molded

Page 8 200419603 V. Description of the invention (5) Molding (as shown in Figure 3C). Take out the covering body 50 that has been molded with magnetic material powder and covered the conductive spiral coil 60 from the mold, and then cut the tapes 104, 204 and the support frame, so that the end surfaces of both sides have outward extensions. The anti-current coils of the electrode plates 70 and 80 (as shown in FIG. 3D), and the electrode plates 70 and 80 are bent toward the corners of the coil cover 50 to obtain the anti-current coils with double-sided electrodes (such as (Figure 3E). As shown in FIG. 4A to FIG. 4E, two sets of lead frames 1000 and 2000 formed by punching, the base frame 101, 102, and the spiral metal conductive sheet 6 1, 6 2 The material strips 104, 204 can also be in multiple pieces. According to the same manufacturing steps, the anti-current coils are formed by the pins 70, 702 on both sides of the coil cover 50. 7 0 3, 8 0 1, 8 0 2, 8 0 3 current-resistant coils. As shown in FIG. 5A to FIG. 5E, if the two sets of lead frames 100 and 2000 are superimposed on each other at the time of welding, the coil-only coating can be obtained. One side of the body 50 has anti-current coils with pins 701, 702, 703, and 704. In the current-resistant coil of the present invention, the coil of the conductive helical coil composed of two helical metal pieces of the present system has a thin coil, and its volume is greatly reduced, which can be combined with the current Electronic high-tech products are light and light]: f requires' and 'the method of manufacturing the current-resistant coil of the present invention only needs the steps of belt and support frames, its plastic molding' and cutting material machines, and the manufacturing cost That is to say: 'It is not necessary to use the invention of the south price, which is in line with the requirements of the patent law. 2 It has industrial use value. Those who need to know, the above mentioned are: :: quasi-patent' is a virtue. If the modification made according to the concept of the present invention is 较佳 = preferable and specific embodiment ′

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200419603 Schematic illustrations Diagrams 1A to 1C are examples of the US Patent No. 6, 46 0, 244 B1. Steps; Square diagrams. Examples of steps to create intentions. The actual structure is structured and the other is clearly issued. The book is issued as shown in Figure 111. c EE 2 3 4th through to Figure 3A AAA 2 3 4 Figure 3M. Example 1 of the system and the Mingfa version is 11-E 5 Figure to Figure A 5 Figure [Simplified description of the diagram] 1 0 0, 2 0 0: lead frame 101, 102: base frame 1 0 2, 1 0 3, 2 0 2, 2 0 3: Support plates 104, 204: Strips 5 0: Coil covering body 6 0: Coils 61, 62 · Metal conductive sheet 6 1 0, 6 2 0 · Metal conductive End of the sheet 7 0, 8 0: electrode sheet 701, 702, 703, 801 > 8 0 2, 803: pin

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Claims (1)

200419603 VI. Scope of patent application 1. A kind of wire formation in it; its characteristic spiral coil 2, such as the original spiral coil. 3. Rushen Conductive spiral anti-current coil, coil body, because: coil. The patent scope system consists of two patent scope sheets. A type of anti-current coil uses conductive metal foils in a spiral shape to make a single lead frame; Ring, and cut out, you will get 5. Rushen 'electrode plate with electrodes 6 · Rushen' two of them should be covered with a single continuous magnetic filling to mold the two sides of the magnetic material The mask please cover the coil with the patent scope. May the patent scope group spiral edge layer, or a kind of current-resistant coil is a coil cover, provided with the electrode part extending from both ends of the coil. -Anti-current coils of continuous conductive items formed by thin sheets, in which the continuous conductive V "slices are overlapped and the ends are welded ΓΛ, where the two superimposed coils become ,,,, and The manufacturing method includes the following steps: ί ί Ϊ i has a spiral metal conductive sheet, the ends of the ΐϊ sheet are overlapped, and the conductive sheet spiral coil is welded; H 溥 sheet spiral wire Placed in a mold. The end of the coil is covered with a thin spiral coil ^ ί t is covered with a thin spiral coil and the material is a coil /: an anti-current coil of an extended electrode plate. F-ring manufacturing method, where ^隅 40% off and the two sides constituting the covering are made of f4 item stomach or item 2 of the anti-coil coil. One v electric sheet except for the connected parts, except for two sets of spiral-shaped metal conductive sheets. Brother 12 200419603 6. In addition to the scope of the patent application, there is an isolation layer. 7. The method for manufacturing a current-resistant coil according to item 6 of the patent application, wherein two sets of lead frames formed by punching a conductive metal sheet, each set of lead frames has a base frame, and extends from a side edge of the base frame The support plate and the spiral metal conductive sheet, and the spiral metal conductive sheet is connected to the base frame by a tape. 8. For the manufacturing method of the anti-current coil according to item 4 of the scope of the patent application, wherein the two sets of lead frames formed by stamping, the strip between the base frame and the spiral metal conductive sheet is multi-sheet. 9. For the manufacturing method of the anti-current coil according to item 8 of the patent application, wherein, when the spiral metal conductive sheet is overlapped and welded, the base frame is also overlapped. Page 13