CN102122561A - 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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- CN102122561A CN102122561A CN 201010611708 CN201010611708A CN102122561A CN 102122561 A CN102122561 A CN 102122561A CN 201010611708 CN201010611708 CN 201010611708 CN 201010611708 A CN201010611708 A CN 201010611708A CN 102122561 A CN102122561 A CN 102122561A
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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 the novel magnetic element of answering the requirement of electronic product height (wide) frequencyization, thin (little) typeization to grow 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 by the automatic feed of press, and is repressed and be integral inductance.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 easily gets rusty, and is not corrosion-resistant.Though iron class powder is handled through insulating and binder resin before making inductance, has strengthened its non-oxidizability, when the compacting inductance, because the friction between particle and the mould causes surface insulation, adhesive layer to destroy and easily oxidized, corrosion.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.
Purpose of the present invention reaches by the following technical programs: 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 manufacture method of compound integrally formed inductance is: the powder feeding mechanism that utilizes the strap clamp layer is transported to iron class powder and alloy powder the centre and the periphery of die cavity internal inductance simultaneously, and repressed curing makes compound integrally formed inductance; 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 standby; (2) will be pack into the hopper of strap clamp layer 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 was filled and finished, powder feeder and isolation frame were withdrawn simultaneously and are finished the powder conveying, and 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 strap clamp layer, one end of material pipe connects material, the other end of material pipe connects powder feeder, the intermediate course of hopper, material pipe and powder feeder connects mutually, 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, iron class powder periphery is the alloy type powder, be the iron class powder of high saturation characteristic in the middle of the integrally formed inductance of Zhi Zuoing has like this, 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 drawings and Examples, these embodiment can not be interpreted as it is 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 strap clamp layer 2, one end of material pipe 3 connects hopper 1, 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 mutually, and powder feeder 4 lower ends have flexible up and down isolation frame 5.
Embodiment 1:
With pack into the centre of strap clamp layered material bucket 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 is finished, and feed appliance and the withdrawal of isolation frame, start the press compacting, solidify, be iron powder in the middle of obtaining, be the compound integrally formed inductance of iron silicochromium powder all around, as shown in Figure 1.
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 strap clamp layered material bucket 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 was finished, feed appliance and the withdrawal of isolation frame started the press compacting, 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 strap clamp layered material bucket 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 was finished, feed appliance and the withdrawal of isolation frame started the press compacting, 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 (4)
1. compound integrally formed inductance 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.
2. the manufacture method of compound integrally formed inductance according to claim 1, it is characterized in that: the powder feeding mechanism that utilizes the strap clamp layer is transported to iron class powder and alloy powder the centre and the periphery of die cavity internal inductance simultaneously, and repressed curing makes compound integrally formed inductance; 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 standby; (2) will be pack into the hopper of strap clamp layer 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 was filled and finished, powder feeder and isolation frame were withdrawn simultaneously and are finished the powder conveying, and compacting obtaining compound integrally formed inductance mould base; (4) curing of inductance mould base is made compound integrally formed inductance.
3. the manufacture method of compound integrally formed inductance according to claim 2, it is characterized in that: described method is applicable to a single mode or a multimode manufacturing.
4. the manufacturing installation of compound integrally formed inductance according to claim 1, it is characterized in that: this manufacturing installation comprises powder feeding mechanism, powder feeding mechanism is made up of hopper (1), material pipe (3), the powder feeder (4) of strap clamp layer (2), one end of material pipe (3) connects hopper (1), 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 mutually, and powder feeder (4) lower end has flexible up and down isolation frame (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106117082A CN102122561B (en) | 2010-12-29 | 2010-12-29 | Composite integrated inductor and manufacturing method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106117082A CN102122561B (en) | 2010-12-29 | 2010-12-29 | Composite integrated inductor and manufacturing method and device thereof |
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| Publication Number | Publication Date |
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| CN102122561A true CN102122561A (en) | 2011-07-13 |
| CN102122561B 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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| CN102122561B (en) | 2012-04-04 |
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