CN102122561B - Composite integrated inductor and manufacturing method and device thereof - Google Patents
Composite integrated inductor and manufacturing method and device thereof Download PDFInfo
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- CN102122561B CN102122561B CN2010106117082A CN201010611708A CN102122561B CN 102122561 B CN102122561 B CN 102122561B CN 2010106117082 A CN2010106117082 A CN 2010106117082A CN 201010611708 A CN201010611708 A CN 201010611708A CN 102122561 B CN102122561 B CN 102122561B
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Abstract
The invention discloses a composite integrated inductor and manufacturing method and device thereof, wherein iron is arranged in the center of and around a coil of the composite integrated inductor and an alloy is arranged at the periphery of the iron in the inductor; through a hopper (1) with an interlayer, a charge pipe (3) with an interlayer, a powder feeder (4) with an interlayer and a flexible isolation frame (5) at the lower end of the powder feeder, non-antioxidative iron powder is conveyed to the middle of a die cavity and antioxidative alloy powder is conveyed to the periphery of the iron; and the iron powder and the alloy powder are pressed and solidified to obtain the composite integrated inductor with the iron in the center and the alloy at the periphery of the iron. The composite integrated inductor has the high anti-saturation characteristic of the iron powder and the antioxidation characteristic of the alloy powder, is free of surface antiseptic treatment and has the effects of resisting the high temperature of welding, saving the manpower and material resources and reducing the cost.
Description
Technical field
The present invention relates to inductance and manufacturing method and apparatus thereof, be specifically related to a kind of compound integrally formed inductance and manufacturing method and apparatus thereof.
Background technology
Integrally formed inductance is to answer high (wide) frequencyization of electronic product, approach the novel magnetic element that the requirement of (little) typeization grows up.Manufacture method is that the coil that will wind in advance and be welded on the terminal earlier places die cavity, gives die cavity through the automatic feed of press, is integral inductance through compacting.The one inductive material mainly contains iron powder, carbonyl iron dust, iron nickel powder, iron aluminum silicon powder, iron silicochromium, iron silicon molybdenum, iron nickel molybdenum powder etc.
Inductance with iron powder, carbonyl iron dust are made has high anti-saturation characteristic, but iron is prone to get rusty, and is not corrosion-resistant.Though process insulating and binder resin are handled before the iron class powder making inductance, have strengthened its non-oxidizability, when the compacting inductance,, cause surface insulation, adhesive layer to destroy and easy oxidized, corrosion owing to the friction between particle and the mould.For fear of the oxidized of inductance and corrosion, inductance surface anticorrosion with painting material (insulating varnish class) that must be after shaping.Because the coil of one inductance is built-in, terminal and inductance are fixing, must protect terminal to avoid being coated with insulating coating when spraying paint, and cause time-consuming.Simultaneously, the high temperature of terminal welding also can cause the decline of inductance performance.
With alloy powders such as iron nickel, iron sial, iron silicochromium, iron silicon molybdenum, the iron nickel molybdenum inductance that is made into one, can be in order to avoid spray paint, but its anti-saturation characteristic is poor.
Be to solve the two defective, generally with the iron class powder and the inductance that is made into one after alloy powder mixes, but often attend to one thing and lose sight of another: iron class proportion of powder is big, can satisfy the requirement of anti-saturation, but still the need surface anticorrosion; The alloy type proportion of powder is big, its anti-saturation characteristic is reduced significantly, even can not satisfy design, instructions for use.
Summary of the invention
The objective of the invention is to: a kind of compound integrally formed inductance and manufacturing method and apparatus thereof are provided, and this compound integrally formed inductance is that iron, iron periphery are the structures of alloy for the centre, exempts from surface anticorrosion, high anti-saturation, the high temperature of anti-the welding.
The object of the invention reaches through following technical scheme: be iron around the hub of a spool of compound integrally formed inductance reaches, the periphery of iron is an alloy in the inductance.
Wherein, the manufacturing approach of compound integrally formed inductance is: the powder feeding mechanism that utilizes padded is transported to iron class powder and alloy powder the centre and the periphery of die cavity internal inductance simultaneously, makes compound integrally formed inductance through press cured; Said method comprising the steps of: (1) iron powder, alloy powder are carried out insulation processing respectively and the granulation of adding binding resin is subsequent use; (2) will be pack into the hopper of padded of the iron powder of granulation, with pack into the interlayer of hopper of the alloy powder of granulation; (3) coil is put into die cavity; Supply powder to die cavity, isolating under the frame isolation, iron powder is delivered in the isolation frame of die cavity; Alloyed powder is sent to the periphery of iron by interlayer; After die cavity fill to be accomplished, powder feeder with isolate the frame completion powder delivery of withdrawing simultaneously, compacting obtaining compound integrally formed inductance mould base; (4) curing of inductance mould base is made compound integrally formed inductance.
Wherein, said method is applicable to a single mode or a multimode manufacturing.
Wherein, The manufacturing installation of compound integrally formed inductance is: this manufacturing installation comprises powder feeding mechanism; Powder feeding mechanism is made up of hopper, material pipe, the powder feeder of padded, and an end of material pipe connects material, and the other end of material pipe connects powder feeder; The intermediate course of hopper, material pipe and powder feeder connects each other, and the powder feeder lower end has flexible up and down isolation frame.
Manufacturing method and apparatus of the present invention places integrally formed inductance center with iron class powder, and iron class powder periphery is the alloy type powder, is the iron class powder of high saturation characteristic in the middle of the integrally formed inductance of making like this has; Around the iron class powder is the alloy powder structure; Inductance anti-saturation performance does not reduce or few the reduction, and avoids surface anticorrosion processing, the high temperature of anti-the welding; Save human and material resources, reduced cost.
Description of drawings
Fig. 1 is the powder feeding mechanism structural representation of manufacturing installation.
Among the figure: 1 hopper, 2 interlayers, 3 material pipes, 4 powder feeders, 5 scalable isolation frames.
Embodiment
Further specify technical solution of the present invention below in conjunction with concrete accompanying drawing and embodiment, these embodiment can not be interpreted as it is the restriction to technical scheme.
As shown in Figure 1; This manufacturing installation comprises powder feeding mechanism; Powder feeding mechanism is made up of hopper 1, material pipe 3, the powder feeder 4 of padded 2, and an end of material pipe 3 connects hopper 1, and the other end of material pipe 3 connects powder feeder 4; The intermediate course 2 of hopper 1, material pipe 3 and powder feeder 4 connects each other, and powder feeder 4 lower ends have flexible up and down isolation frame 5.
Embodiment 1:
With pack into the centre of padded hopper of the reduced iron powder of granulation, with the iron silicochromium powder of the granulation hopper interlayer of packing into, feed appliance is sent into reduced iron powder in the isolation frame that extend into die cavity; Iron silicochromium powder is sent into around the isolation frame from the powder feeder interlayer; After filling completion, feed appliance and the withdrawal of isolation frame start press and suppress; Solidify, in the middle of obtaining for iron powder, be the compound integrally formed inductance of iron silicochromium powder all around.
Prepared inductance is being removed under the prerequisite of preservative process, salt mist test 56 hours, no rust staining; The anti-saturation characteristic is identical with the integrally formed inductance that simple iron class powder is made; Moment 280 ℃ of high temperature during the terminal welding do not cause damage to inductance.
Embodiment 2:
With pack into the centre of padded hopper of the carbonyl iron dust of granulation, with the iron silicochromium powder of the granulation hopper interlayer of packing into, feed appliance is sent into carbonyl iron dust in the isolation frame that extend into die cavity; Iron silicochromium powder is sent into around the isolation frame from the powder feeder interlayer; After filling completion, feed appliance and the withdrawal of isolation frame start press and suppress; Solidify, in the middle of obtaining for iron powder, be the compound integrally formed inductance of iron silicochromium powder all around.
Prepared inductance is being removed under the prerequisite of preservative process, salt mist test 60 hours, no rust staining; The anti-saturation characteristic is identical with the integrally formed inductance that simple iron class powder is made; Moment 280 ℃ of high temperature during the terminal welding do not cause damage to inductance.
Embodiment 3:
With pack into the centre of padded hopper of the carbonyl iron dust of granulation, with the iron nickel molybdenum powder of the granulation hopper interlayer of packing into, feed appliance is sent into carbonyl iron dust in the isolation frame that extend into die cavity; Iron nickel molybdenum powder is sent into around the isolation frame from the powder feeder interlayer; After filling completion, feed appliance and the withdrawal of isolation frame start press and suppress; Solidify, in the middle of obtaining for carbonyl iron dust, be the compound integrally formed inductance of iron nickel molybdenum powder all around.
Prepared inductance is being removed under the prerequisite of preservative process, salt mist test 60 hours, no rust staining; The anti-saturation characteristic is identical with the integrally formed inductance that simple iron class powder is made; Moment 280 ℃ of high temperature during the terminal welding do not cause damage to inductance.
Claims (2)
1. the manufacturing approach of a compound integrally formed inductance; It is characterized in that: be iron around the hub of a spool of compound integrally formed inductance reaches; The periphery of iron is an alloy in the inductance; The powder feeding mechanism that promptly utilizes padded is transported to iron class powder and alloy powder the centre and the periphery of die cavity internal inductance simultaneously, through compacting, solidify and make compound integrally formed inductance; The powder feeding mechanism of said padded is made up of hopper (1), material pipe (3), the powder feeder (4) of padded (2); One end of material pipe (3) connects hopper (1); The other end of material pipe (3) connects powder feeder (4); The interlayer (2) of hopper (1) and hopper, material pipe (3) and powder feeder (4) connect each other, and powder feeder (4) lower end has flexible up and down isolation frame (5); Said method comprises the steps:
(1) iron class powder, alloy powder are carried out insulation processing respectively and add the binding resin granulation subsequent use;
(2) will be pack into the hopper of padded of the iron class powder of granulation, with pack into the interlayer of hopper of the alloy powder of granulation;
(3) coil is put into die cavity, supply powder, isolating under the frame isolation to die cavity; In the isolation frame of iron class powder delivery to die cavity; Alloy powder is delivered to the periphery of iron class powder by interlayer, after die cavity is filled and is accomplished, powder feeder with isolate frame and withdraw simultaneously; Accomplish powder delivery, compacting obtains compound integrally formed inductance mould base;
(4) curing of inductance mould base is made compound integrally formed inductance.
2. want the manufacturing approach of 1 described compound integrally formed inductance according to right, it is characterized in that: said method is applicable to a single mode or a multimode manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010106117082A CN102122561B (en) | 2010-12-29 | 2010-12-29 | Composite integrated inductor and manufacturing method and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106117082A CN102122561B (en) | 2010-12-29 | 2010-12-29 | Composite integrated inductor and manufacturing method and device thereof |
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| CN102122561A CN102122561A (en) | 2011-07-13 |
| CN102122561B true CN102122561B (en) | 2012-04-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2425759Y (en) * | 2000-06-28 | 2001-04-04 | 明利五金电业(深圳)有限公司 | Material feeder for plastics injection moulding |
| CN1407564A (en) * | 2001-08-29 | 2003-04-02 | 松下电器产业株式会社 | Magnetic element and its manufacture, power supply module therewith |
| CN101299390A (en) * | 2007-02-27 | 2008-11-05 | Tdk株式会社 | Powder forming device |
| CN101391301A (en) * | 2008-11-10 | 2009-03-25 | 北京中科三环高技术股份有限公司 | Powder-feeding device and method in magnet forming process |
| CN101552091A (en) * | 2008-12-31 | 2009-10-07 | 王向群 | Metal powder injection molding inductor and processing method thereof |
-
2010
- 2010-12-29 CN CN2010106117082A patent/CN102122561B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2425759Y (en) * | 2000-06-28 | 2001-04-04 | 明利五金电业(深圳)有限公司 | Material feeder for plastics injection moulding |
| CN1407564A (en) * | 2001-08-29 | 2003-04-02 | 松下电器产业株式会社 | Magnetic element and its manufacture, power supply module therewith |
| CN101299390A (en) * | 2007-02-27 | 2008-11-05 | Tdk株式会社 | Powder forming device |
| CN101391301A (en) * | 2008-11-10 | 2009-03-25 | 北京中科三环高技术股份有限公司 | Powder-feeding device and method in magnet forming process |
| CN101552091A (en) * | 2008-12-31 | 2009-10-07 | 王向群 | Metal powder injection molding inductor and processing method thereof |
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| CN102122561A (en) | 2011-07-13 |
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