CN113284727A - Preparation method of inductance assembly - Google Patents
Preparation method of inductance assembly Download PDFInfo
- Publication number
- CN113284727A CN113284727A CN202110391505.5A CN202110391505A CN113284727A CN 113284727 A CN113284727 A CN 113284727A CN 202110391505 A CN202110391505 A CN 202110391505A CN 113284727 A CN113284727 A CN 113284727A
- Authority
- CN
- China
- Prior art keywords
- iron core
- inductance
- mixture
- lower iron
- manufacturing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention provides a preparation method of an inductance assembly, which comprises the following steps: s1, stirring: uniformly stirring the glue and the magnetic body to obtain a first mixture; s2, vacuumizing: vacuumizing the first mixture; s3, screening: classifying the granules by a plurality of groups of screens to screen out different granules for later use according to the holes of the screens; s4, stirring the granules and the first mixture together to obtain a second mixture; s5, end piece assembling: combining the end plates into the grooves of the lower iron core, and extending the end plates to the bottom of the lower iron core to form electrode surfaces; s6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates; s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core; s8, pressing: pressing the upper iron core towards the lower iron core to enable the upper iron core and the lower iron core to be mutually jointed; s9, baking: and baking the inductance part to obtain the inductance component. The preparation method of the inductance component improves the inductance characteristic of the inductance component, and the inductance of the inductance component is increased by 5-10%.
Description
Technical Field
The invention relates to the technical field of inductance components, in particular to a preparation method of an inductance component.
Background
The inductor component with low inductance and large current currently available in the market comprises an upper core, a tape, an adhesive, a lower core and a coil; specifically, the spacer is disposed between the upper iron core and the lower iron core, so that a gap is formed when the upper iron core and the lower iron core are connected to each other, and the upper iron core and the lower iron core are adhered by using the adhesive, therefore, the inductance assembly controls the size of the gap of the inductance assembly by adjusting the thickness of the spacer, and further controls the inductance value of the inductance assembly, and the inductance assembly has the disadvantage that when the contact area between the spacer and the iron core is too large, the contact surface between the adhesive and the upper iron core is partially shielded, that is, the adhesive cannot firmly adhere the upper iron core and the lower iron core, so that the upper iron core and the lower iron core are not adhered stably enough and fall off; the inductance characteristic is achieved due to the gap formed by the spacer between the upper iron core and the lower iron core of the product, and the air gap loss can be avoided due to the gap existing in a large area, so that the efficiency of the product is lowered.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the preparation method of the inductance assembly, which can improve the bonding strength and the inductance performance of the inductance assembly. The technical scheme adopted by the invention is as follows:
a method of making an inductor assembly, wherein: the method comprises the following steps:
s1, stirring: weighing glue raw materials and a magnetic body, and uniformly stirring the glue and the magnetic body together to obtain a first mixture;
s2, vacuumizing: vacuumizing the first mixture to prevent air in the colloid from foaming;
s3, screening: providing granules, and classifying the granules by a plurality of groups of screens to obtain different granules for later use according to the holes of the screens;
s4, stirring the screened particles with fixed particle sizes and the first mixture together to obtain a second mixture;
s5, end piece assembling: combining the end pieces into the grooves of the lower iron core, and bending the end pieces to extend to the bottom of the lower iron core to form electrode surfaces;
the end piece is a conductor, the end piece is assembled in the lower iron core groove and extends to the bottom of the lower iron core to form an electrode surface for patch welding, the end piece is a punch-formed conductor, and the conductor is made of pure copper.
S6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates;
s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core;
s8, pressing: pressing the upper iron core towards the lower iron core to joint the upper iron core and the lower iron core to obtain an inductor;
s9, baking: and baking the inductance piece to enable the colloid of the inductance piece to be solidified and bonded with the upper iron core and the lower iron core, so as to obtain the inductance assembly.
Preferably, the method for manufacturing an inductor assembly, wherein: the magnetic substance in step S1 is magnetic powder, the particle size of the magnetic powder is smaller than that of the particle body, and the magnetic powder is selected from one or two of ferrite material and alloy material.
Preferably, the method for manufacturing an inductor assembly, wherein: the ferrite material is selected from one or two of nickel zinc ferrite and manganese zinc ferrite; the alloy material is selected from one or more of iron-silicon-aluminum alloy, iron-silicon alloy and iron-nickel-manganese alloy.
Preferably, the method for manufacturing an inductor assembly, wherein: the mass ratio of the glue raw material to the magnetic body in the step S1 is 1:0.1 to 1; the stirring speed is 100-200 r/min, and the stirring time is 30-60 min.
Preferably, the method for manufacturing an inductor assembly, wherein: the glue raw material of the step S1 is one of epoxy resin, polyurethane and phenolic resin.
Glue raw materials mixes with the granule body, magnetic substance according to certain proportion, accomplishes characteristic adjustment through the size control of the granule body and goes up the distance between iron core and the lower iron core, improves inductance assembly's inductance characteristic through the magnetic substance simultaneously.
Preferably, the method for manufacturing an inductor assembly, wherein: the step S2 is performed at a vacuum level of-25 × 100 to-10 × 100 kpa.
Preferably, the method for manufacturing an inductor assembly, wherein: in the step S4, the mass ratio of the particles to the first mixture is 1: 0.1-1, and the stirring time is 5-30 min.
Preferably, the method for manufacturing an inductor assembly, wherein: the granules in the step S4 are one or two of glass beads and plastic beads.
Preferably, the method for manufacturing an inductor assembly, wherein: in the step S9, the baking temperature is 125-180 ℃, and the baking time is 10-60 min.
The invention has the advantages that: according to the preparation method of the inductance assembly, the glue raw material, the magnetic body and the particle body are mixed and then brushed on the surface of the lower iron core with the assembled end pieces, so that the bonding fixation between the upper iron core and the lower iron core is completed, and the problem of insufficient bonding strength of the upper iron core and the lower iron core caused by large area occupied by the adhesive tape is solved; the distance between the upper iron core and the lower iron core is controlled by the particle size of the particles in the glue raw material, so that the aim of adjusting the characteristics of the product is fulfilled; the inductance characteristic of the inductance assembly is improved through the magnetic body in the glue raw material, and the inductance of the inductance assembly is increased by 5-10%.
Drawings
Fig. 1 is a schematic structural diagram of an inductor assembly in the prior art.
Detailed Description
The invention is further illustrated by the following examples and figures.
As shown in fig. 1, the prior art inductance assembly with low inductance and large current includes an upper core 11, an adhesive tape 12, an adhesive 14, a lower core 15 and a coil 16; the upper iron core 11 is a sheet-shaped body, and the lower iron core: the upper part is provided with a groove, a gasket 12 is arranged between the upper iron core 11 and the lower iron core 15, so that a gap is formed when the upper iron core 11 and the lower iron core 15 are mutually connected, the upper iron core 11 and the lower iron core 15 are adhered by using an adhesive 14, the thickness of the inductor component is adjusted by using the thickness of the gasket 12, the size of the gap of the inductor component 1 is controlled, the height of the inductance value of the inductor component is further controlled, the adhesive 14 cannot completely and firmly adhere the upper iron core 11 and the lower iron core 15, and the upper iron core 11 and the lower iron core 15 are not adhered stably and fall off; the inductance characteristic is achieved due to the gap formed by the spacer 12 between the upper iron core 11 and the lower iron core 15 of the product, and the efficiency of the product is lowered due to the inevitable air gap loss caused by the gap existing in a large area.
Example 1
The present embodiment provides a method for manufacturing an inductor assembly, wherein: the method comprises the following steps:
s1, stirring: weigh glue raw materials and magnetic substance, the glue raw materials is epoxy, and the magnetic substance is nickel zinc ferrite, and the particle diameter of nickel zinc ferrite is less than the particle diameter of glass ball, and the mass ratio of glue raw materials and magnetic substance is 1:1, uniformly stirring the glue and the magnetic body at a stirring speed of 100 revolutions per minute for 30 minutes to obtain a first mixture,
s2, vacuumizing: vacuumizing the first mixture to prevent air in the colloid from foaming, wherein the vacuum degree is-25 x 100;
s3, screening: classifying the glass beads by a plurality of groups of screens to screen out different granules according to the holes of the screens for later use;
s4, stirring the screened glass beads with fixed particle sizes and the first mixture together, wherein the mass ratio of the glass beads to the first mixture is 1:1, and the stirring time is 5min, so as to obtain a second mixture;
s5, end piece assembling: combining the end pieces into the grooves of the lower iron core, and bending the end pieces to extend to the bottom of the lower iron core to form electrode surfaces;
s6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates;
s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core;
s8, pressing: pressing the upper iron core towards the lower iron core to joint the upper iron core and the lower iron core to obtain an inductor;
s9, baking: and baking the inductance part at 125 ℃ for 60min to enable the colloid to be solidified and bonded with the upper iron core and the lower iron core, so as to obtain the inductance component.
Example 2
The present embodiment provides a method for manufacturing an inductor assembly, wherein: the method comprises the following steps:
s1, stirring: weigh glue raw materials and magnetic substance, the glue raw materials is polyurethane, and the magnetic substance is manganese zinc ferrite, and manganese zinc ferrite's particle diameter is less than the particle diameter of plastic ball, and glue raw materials and manganese zinc ferrite's mass ratio is 1:0.5, uniformly stirring the glue and the magnetic body at the stirring speed of 120 revolutions per minute for 50 minutes to obtain a first mixture;
s2, vacuumizing: vacuumizing the first mixture to prevent air in the colloid from foaming, wherein the vacuum degree is-15 x 100 kpa;
s3, screening: classifying the plastic beads by a plurality of groups of screens to screen out different granules according to the holes of the screens for later use;
s4, stirring the screened plastic beads with fixed particle sizes and the first mixture together, wherein the mass ratio of the plastic beads to the first mixture is 1:0.5, and the stirring time is 20min, so as to obtain a second mixture;
s5, end piece assembling: combining the end pieces into the grooves of the lower iron core, and bending the end pieces to extend to the bottom of the lower iron core to form electrode surfaces;
s6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates;
s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core;
s8, pressing: pressing the upper iron core towards the lower iron core to joint the upper iron core and the lower iron core to obtain an inductor;
s9, baking: and baking the inductance part at 160 ℃ for 50min to enable the colloid to be solidified and bonded with the upper iron core and the lower iron core, so as to obtain the inductance component.
Example 3
The present embodiment provides a method for manufacturing an inductor assembly, wherein: the method comprises the following steps:
s1, stirring: weighing glue raw materials and a magnetic body, wherein the glue raw materials are phenolic resin, the magnetic body is iron-nickel-manganese, the particle size of the iron-nickel-manganese is smaller than that of the glass round beads, the mass ratio of the glue raw materials to the magnetic body is 1:0.1, uniformly stirring the glue and the magnetic body together, and stirring at the speed of 200 revolutions per minute for 60 minutes to obtain a first mixture;
s2, vacuumizing: vacuumizing the first mixture to prevent air in the colloid from foaming, wherein the vacuum degree is-10 x 100 kpa;
s3, screening: classifying the glass beads by a plurality of groups of screens to screen out different granules according to the holes of the screens for later use;
s4, stirring the screened glass beads with fixed particle sizes and the first mixture together, wherein the mass ratio of the glass beads to the first mixture is 1:0.1, and the stirring time is 30min, so as to obtain a second mixture;
s5, end piece assembling: combining the end pieces into the grooves of the lower iron core, and bending the end pieces to extend to the bottom of the lower iron core to form electrode surfaces;
s6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates;
s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core;
s8, pressing: pressing the upper iron core towards the lower iron core to enable the upper iron core and the lower iron core to be mutually jointed;
s9, baking: and baking the inductor product at the baking temperature of 180 ℃ for 10min to enable the colloid to be solidified and bonded with the upper iron core and the lower iron core, so as to obtain the inductor assembly.
Placing the inductance assembly of the embodiment 1-3 into an automatic test packaging machine, carrying out electrical test on the product, packaging and printing a mark; tests prove that the inductance of the inductance assembly in the embodiments 1-3 is increased by 5-10% compared with that of the existing inductance assembly, the viscosity is greatly enhanced, glue raw materials, magnetic bodies and particle bodies are mixed and then are brushed on the surface of the lower iron core with the assembled end pieces, the bonding and fixing between the upper iron core and the lower iron core are completed, and the problem of insufficient bonding strength of the upper iron core and the lower iron core caused by large area occupied by adhesive tapes is solved; the distance between the upper iron core and the lower iron core is controlled by the particle size of the particles in the glue raw material, so that the aim of adjusting the characteristics of the product is fulfilled; through the magnetic body in the glue raw materials, the inductance characteristic of the inductance assembly is improved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A preparation method of an inductance component is characterized by comprising the following steps: the method comprises the following steps:
s1, stirring: weighing glue raw materials and a magnetic body, and uniformly stirring the glue and the magnetic body together to obtain a first mixture;
s2, vacuumizing: vacuumizing the first mixture to prevent air in the colloid from foaming;
s3, screening: providing granules, and classifying the granules by a plurality of groups of screens to obtain different granules for later use according to the holes of the screens;
s4, stirring the screened particles with fixed particle sizes and the first mixture together to obtain a second mixture;
s5, end piece assembling: combining the end pieces into the grooves of the lower iron core, and bending the end pieces to extend to the bottom of the lower iron core to form electrode surfaces;
s6, dispensing: brushing the first mixture on the surface of the lower iron core with the assembled end plates;
s7, assembling an iron core: aligning and assembling the upper iron core and the lower iron core;
s8, pressing: pressing the upper iron core towards the lower iron core to joint the upper iron core and the lower iron core to obtain an inductor;
s9, baking: and baking the inductance piece to enable the colloid of the inductance piece to be solidified and bonded with the upper iron core and the lower iron core, so as to obtain the inductance assembly.
2. The method of manufacturing an inductance assembly according to claim 1, wherein: the magnetic substance in step S1 is magnetic powder, the particle size of the magnetic powder is smaller than that of the particle body, and the magnetic powder is selected from one or two of ferrite material and alloy material.
3. The method of manufacturing an inductance assembly according to claim 2, wherein: the ferrite material is selected from one or two of nickel zinc ferrite and manganese zinc ferrite; the alloy material is selected from one or more of iron-silicon-aluminum alloy, iron-silicon alloy and iron-nickel-manganese alloy.
4. The method of manufacturing an inductance assembly according to claim 1, wherein: the mass ratio of the glue raw material to the magnetic body in the step S1 is 1:0.1 to 1; the stirring speed is 100-200 r/min, and the stirring time is 30-60 min.
5. The method of manufacturing an inductance assembly according to claim 1, wherein: the glue raw material of the step S1 is one of epoxy resin, polyurethane and phenolic resin.
6. The method of manufacturing an inductance assembly according to claim 1, wherein: the step S2 is performed at a vacuum level of-25 × 100 to-10 × 100 kpa.
7. The method of manufacturing an inductance assembly according to claim 1, wherein: in the step S4, the mass ratio of the particles to the first mixture is 1: 0.1-1, and the stirring time is 5-30 min.
8. The method of manufacturing an inductance assembly according to claim 1, wherein: the granules in the step S4 are one or two of glass beads and plastic beads.
9. The method of manufacturing an inductance assembly according to claim 1, wherein: in the step S9, the baking temperature is 125-180 ℃, and the baking time is 10-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391505.5A CN113284727B (en) | 2021-04-14 | 2021-04-14 | Preparation method of inductance assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391505.5A CN113284727B (en) | 2021-04-14 | 2021-04-14 | Preparation method of inductance assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113284727A true CN113284727A (en) | 2021-08-20 |
| CN113284727B CN113284727B (en) | 2023-10-03 |
Family
ID=77276590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110391505.5A Active CN113284727B (en) | 2021-04-14 | 2021-04-14 | Preparation method of inductance assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113284727B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871182A (en) * | 2021-10-29 | 2021-12-31 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Coplanarity curing tool and mounting method for planar inductor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005109290A (en) * | 2003-10-01 | 2005-04-21 | Hitachi Ferrite Electronics Ltd | Low height type inductor |
| CN101950651A (en) * | 2009-07-10 | 2011-01-19 | 美桀电子科技(深圳)有限公司 | Inductance assembly with gap and manufacturing method thereof |
| CN105529128A (en) * | 2016-02-03 | 2016-04-27 | 深圳顺络电子股份有限公司 | Inductor and manufacturing method therefor |
| TWM523181U (en) * | 2015-12-17 | 2016-06-01 | Lian Zhen Electronics Co Ltd | Inductor |
| CN109036801A (en) * | 2018-08-02 | 2018-12-18 | 深圳顺络电子股份有限公司 | A kind of heat curing type high magnetic permeability magnetic glue and its manufacturing method |
| CN111063505A (en) * | 2019-12-24 | 2020-04-24 | 南充新川电子科技有限公司 | High-power inductor |
-
2021
- 2021-04-14 CN CN202110391505.5A patent/CN113284727B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005109290A (en) * | 2003-10-01 | 2005-04-21 | Hitachi Ferrite Electronics Ltd | Low height type inductor |
| CN101950651A (en) * | 2009-07-10 | 2011-01-19 | 美桀电子科技(深圳)有限公司 | Inductance assembly with gap and manufacturing method thereof |
| TWM523181U (en) * | 2015-12-17 | 2016-06-01 | Lian Zhen Electronics Co Ltd | Inductor |
| CN105529128A (en) * | 2016-02-03 | 2016-04-27 | 深圳顺络电子股份有限公司 | Inductor and manufacturing method therefor |
| CN109036801A (en) * | 2018-08-02 | 2018-12-18 | 深圳顺络电子股份有限公司 | A kind of heat curing type high magnetic permeability magnetic glue and its manufacturing method |
| CN111063505A (en) * | 2019-12-24 | 2020-04-24 | 南充新川电子科技有限公司 | High-power inductor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871182A (en) * | 2021-10-29 | 2021-12-31 | 中国振华(集团)新云电子元器件有限责任公司(国营第四三二六厂) | Coplanarity curing tool and mounting method for planar inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113284727B (en) | 2023-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7786835B2 (en) | Magnetic element and method of manufacturing magnetic element | |
| US7082667B2 (en) | Method of making a loudspeaker | |
| US20060038653A1 (en) | High current inductor and the manufacturing method | |
| US9424988B2 (en) | Common mode filter and method of manufacturing the same | |
| CN113284727A (en) | Preparation method of inductance assembly | |
| TW202217875A (en) | Preparation method of metal magnetic powder core integrated chip inductor | |
| CN112489972A (en) | Inductor and preparation method thereof | |
| US20210110965A1 (en) | Coil component and method for manufacturing the same | |
| CN106590345A (en) | Magnetic glue and inductor device using same | |
| CN106816262B (en) | coil device | |
| US10210988B2 (en) | Coil component | |
| CN102122563A (en) | Wire wound inductor and manufacturing method thereof | |
| JP4076359B2 (en) | Chip inductor and manufacturing method thereof | |
| US20130160895A1 (en) | Solder paste for pasting electronic part on printed circuit board | |
| US20070294880A1 (en) | Method for making surface mount inductor | |
| JP2005228827A (en) | Surface-mounted coil component and its manufacturing method | |
| CN201397741Y (en) | Fully automatic high-speed plastic envelope machine for chip wire wound inductors | |
| US6792667B2 (en) | Fully automatic process for magnetic circuit assembly | |
| CN114421139B (en) | Radio frequency antenna manufacturing method and radio frequency antenna | |
| KR20210044121A (en) | A Surface Mounted Metal Composite Power Inductor And A Method Of Manufacturing The Same | |
| US20070096372A1 (en) | Method of manufacturing melt blown carbon fiber filter element and apparatus used therein | |
| JPH05101953A (en) | Manufacture of rotary transformer | |
| CN101847591B (en) | Method for packaging multiple chips on strip | |
| US20240062944A1 (en) | Low-loss inductor and manufacturing method thereof | |
| CN108638123B (en) | Manufacturing process of mechanical arm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |