CN103489603A - Method for processing integrally-molded inductor - Google Patents
Method for processing integrally-molded inductor Download PDFInfo
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- CN103489603A CN103489603A CN201210192358.XA CN201210192358A CN103489603A CN 103489603 A CN103489603 A CN 103489603A CN 201210192358 A CN201210192358 A CN 201210192358A CN 103489603 A CN103489603 A CN 103489603A
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Abstract
The invention provides a method for processing an integrally-molded inductor. The method comprises the following steps: A, winding a cylindrical coil, and placing the cylindrical coil into a die cavity; B, granulating a thermo-plastic material and a permeability magnetic material, heating at a high temperature to form a liquid mixed material, and injecting the mixed material into the die cavity, wherein the weight of the permeability magnetic material is 75-90 percent that of the mixed material; C, cooling and curing the liquid mixed material in the die cavity, forming a magnetic core part on the middle part of the coil, forming a magnetic ring part outside the coil, and the wrapping the coil integrally by using the magnetic core part and the magnetic ring part to form a product.
Description
Technical field
The invention belongs to the magnetoelectricity field, particularly relate to a kind of integrally-formed inductor processing method.
Background technology
Inductance element is components and parts very important in electronic industry, and the traditional electrical sensing unit is to wind the line and make on magnetic material element; Another kind of inductance element is at the made cladding of coil outer cladding one permeability magnetic material, thereby forms inductance element.Traditional inductance element, formed by two magnetic cores and a coil combination one on the other, and the next magnetic core is provided with a groove, and for accommodating coil, upper magnetic core is corresponding with it to be covered, then through putting, gluingly connect, the technique such as baking, make two magnetic cores be combined into a cladding., can there be space in this inductance element two magnetic core combinations place, and this is a very large magnetic conduction defect, can produce thus vibration and noise, also can cause magnetic loss to strengthen, and affects the quality factor (quality factor is called for short the Q value) of inductance.On the other hand, such manufacture method needs handwork, and upper and lower two magnetic cores also need external coating, contaminated environment also, and processing cost is also higher, is unfavorable for a large amount of production.
For overcoming conventional magnetic element coiling problem, industry changes gradually adopts the column magnetic core, its product can form magnetic line of force loop except around current-carrying coil, mostly all present the radiation wire by the outside loss of core center, this main source that is electromagnetic interference (EMI), and its magnetic line of force path is outer exposing to the sun in air all, there is no the function that strengthens magnetic field induction.
For improving open magnetic element shortcoming, market to be adopted in the outside mode that increases by an enclosing cover of magnetic core, is commonly called as combined magnetic core element (Drum Core), and the combined magnetic core element is compared to open element, and it has two obvious advantages:
1. increase the additional magnetic line of force in the magnetic material path, can strengthen the output of global magnetic field intensity.
2. enclosing cover guides to the magnetic line of force in the enclosing cover material, reduces magnetic line of force loss.
But this kind of design still has assembly space (Gap) problem, owing to adopting assembling mode to form, therefore in assembly, the assembly space must be arranged, the magnetic loss more than 50% will be caused in this part space.
There are the following problems for existing processing method:
1, workman's labour intensity is high;
2, working (machining) efficiency is low;
3, the coiling density of coil and spacing are difficult to control, and cause processed homogeneity of product poor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of reinforced magnetic energy-storage element finished product processing method is provided, the present invention can reduce workman's labour intensity, improves working (machining) efficiency, the high conformity of product.
The objective of the invention is to be achieved through the following technical solutions:
A kind of integrally-formed inductor processing method, the method comprises the steps:
The coil of A, coiling cylindricality, and be placed in die cavity;
B, hot plastic material and permeability magnetic material are made to particle, form liquid composite material after high-temperature heating, and it is injected in die cavity, described permeability magnetic material accounts for the 75-90% of composite material weight;
Composite material cooling curing in die cavity of C, liquid state, form magnetic core section at the middle part of coil, and the outside of coil forms magnet ring section, and magnetic core section and magnet ring section one form product by described coil parcel.
Preferably, described permeability magnetic material accounts for the 80-90% (weight ratio) of composite material weight.
Preferably, described permeability magnetic material is one or more in ferrite magnetic material, metallicl magnetic material, amorphous magnetic material, nanometer ultracrystallite magnetic material.
Compared with prior art, the present invention has following advantage: manufacture simply, electrical characteristic is good.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only part embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the invention protection.
Embodiment 1
A kind of integrally-formed inductor processing method, the method comprises the steps:
The coil of A, coiling cylindricality, and be placed in die cavity;
B, hot plastic material and permeability magnetic material are made to particle, form liquid composite material after high-temperature heating, and it is injected in die cavity, described permeability magnetic material accounts for 85% of composite material weight;
Composite material cooling curing in die cavity of C, liquid state, form magnetic core section at the middle part of coil, and the outside of coil forms magnet ring section, and magnetic core section and magnet ring section one form product by described coil parcel.
Described permeability magnetic material is one or more in ferrite magnetic material, metallicl magnetic material, amorphous magnetic material, nanometer ultracrystallite magnetic material.
Embodiment 2
A kind of integrally-formed inductor processing method, the method comprises the steps:
The coil of A, coiling cylindricality, and be placed in die cavity;
B, hot plastic material and permeability magnetic material are made to particle, form liquid composite material after high-temperature heating, and it is injected in die cavity, described permeability magnetic material accounts for 90% of composite material weight;
Composite material cooling curing in die cavity of C, liquid state, form magnetic core section at the middle part of coil, and the outside of coil forms magnet ring section, and magnetic core section and magnet ring section one form product by described coil parcel.
Described permeability magnetic material is one or more in ferrite magnetic material, metallicl magnetic material, amorphous magnetic material, nanometer ultracrystallite magnetic material.
Claims (3)
1. an integrally-formed inductor processing method, is characterized in that, the method comprises the steps:
The coil of A, coiling cylindricality, and be placed in die cavity;
B, hot plastic material and permeability magnetic material are made to particle, form liquid composite material after high-temperature heating, and it is injected in die cavity, described permeability magnetic material accounts for the 75-90% of composite material weight;
Composite material cooling curing in die cavity of C, liquid state, form magnetic core section at the middle part of coil, and the outside of coil forms magnet ring section, and magnetic core section and magnet ring section one form product by described coil parcel.
2. the processing method of integrally-formed inductor according to claim 1, is characterized in that, described permeability magnetic material accounts for the 80-90% of composite material weight.
3. the processing method of integrally-formed inductor according to claim 2, is characterized in that, described permeability magnetic material is one or more in ferrite magnetic material, metallicl magnetic material, amorphous magnetic material, nanometer ultracrystallite magnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192358.XA CN103489603A (en) | 2012-06-12 | 2012-06-12 | Method for processing integrally-molded inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192358.XA CN103489603A (en) | 2012-06-12 | 2012-06-12 | Method for processing integrally-molded inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103489603A true CN103489603A (en) | 2014-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210192358.XA Pending CN103489603A (en) | 2012-06-12 | 2012-06-12 | Method for processing integrally-molded inductor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103489603A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003558A (en) * | 2016-05-13 | 2016-10-12 | 郎溪亚博磁电科技有限公司 | Production technology of high-strength cracking-prevention variable speed induction signal components |
| CN106768750A (en) * | 2016-11-17 | 2017-05-31 | 北京航天斯达科技有限公司 | A kind of fixing means of induction type shake table and its driving coil |
-
2012
- 2012-06-12 CN CN201210192358.XA patent/CN103489603A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003558A (en) * | 2016-05-13 | 2016-10-12 | 郎溪亚博磁电科技有限公司 | Production technology of high-strength cracking-prevention variable speed induction signal components |
| CN106003558B (en) * | 2016-05-13 | 2018-07-20 | 郎溪亚博磁电科技有限公司 | A kind of production technology of high intensity crack resistence speed change inductive signal component |
| CN106768750A (en) * | 2016-11-17 | 2017-05-31 | 北京航天斯达科技有限公司 | A kind of fixing means of induction type shake table and its driving coil |
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Application publication date: 20140101 |