CN116017260A - Earphone insert magnetizing assembly process - Google Patents
Earphone insert magnetizing assembly process Download PDFInfo
- Publication number
- CN116017260A CN116017260A CN202211663554.0A CN202211663554A CN116017260A CN 116017260 A CN116017260 A CN 116017260A CN 202211663554 A CN202211663554 A CN 202211663554A CN 116017260 A CN116017260 A CN 116017260A
- Authority
- CN
- China
- Prior art keywords
- magnet body
- magnetizing
- assembly process
- magnetic conduction
- protective layer
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 239000011241 protective layer Substances 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 9
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 8
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005389 magnetism Effects 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000001723 curing Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- RIVZIMVWRDTIOQ-UHFFFAOYSA-N cobalt iron Chemical compound [Fe].[Co].[Co].[Co] RIVZIMVWRDTIOQ-UHFFFAOYSA-N 0.000 description 1
- OPXJEFFTWKGCMW-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Ni].[Cu] OPXJEFFTWKGCMW-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention relates to the technical field of earphone processing, in particular to a magnetizing and assembling process for an earphone insert, which comprises the following steps: preparing a magnet body, namely cutting a neodymium iron boron blank which passes through magnetic property inspection and meets standard requirements into rectangular bar magnets according to different magnetizing directions, grinding by using a grinding wheel and a guide rail, cutting the processed neodymium iron boron blank into rectangular bar magnets with certain dimensions again, putting the magnets into a chamfering machine, vibrating and grinding, and taking out the magnets to obtain the magnet body; assembling, namely placing the magnet body on an assembling jig, and assembling different parts and the magnet body together to form a movement; forming a protective layer, and providing a spray gun piece to spray liquid insulating materials on the outer surface of the machine core to form the insulating protective layer; baking and forming, namely providing an insulating protective layer of a baking machine core of the baking machine, and heating, solidifying and forming the insulating protective layer; magnetizing and providing a magnetizing machine to magnetize the movement. The assembly and magnetizing work are realized, the quality of the magnet body is ensured, and the normal assembly process is ensured.
Description
Technical Field
The invention relates to the technical field of earphone processing, in particular to a magnetizing assembly process for earphone inserts.
Background
Magnetizing is a treatment mode for magnetizing magnetic substances or increasing magnetism of magnets with insufficient magnetism, in the production and manufacturing process of headphones, the magnets in the headphones are generally subjected to magnetizing treatment firstly, and then the magnetized magnets are assembled with other components to form the headphones, but the magnets are provided with magnetism after magnetizing treatment, when the magnets are assembled with the other components, the magnets are attracted to the other components due to the influence of mutual attraction interference of the magnetism, normal installation process is influenced, assembly efficiency is reduced, hard collision is caused between the magnets and the other components to damage a structure, poor quality of the magnets is caused, the yield of the magnets is greatly influenced, and the quality and productivity of headphone products are further influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a magnetizing assembly process for earphone inserts, which realizes the operations of assembling and magnetizing after assembling, ensures the quality of a magnet body, ensures the normal assembling process and has high assembling efficiency, thereby improving the production quality and economic efficiency of earphone products.
In order to achieve the above purpose, the invention provides a magnetizing assembly process for an earphone insert, comprising the following steps: preparing a magnet body, namely selecting neodymium iron boron blanks which pass through magnetic property inspection and meet standard requirements, cutting the neodymium iron boron blanks into rectangular magnets according to different magnetizing directions, grinding by using a grinding wheel and a guide rail, cutting the rectangular magnets into rectangular magnets with certain dimensions again after the grinding, putting the magnets into a chamfering machine, vibrating and grinding, and taking out the magnets to obtain the magnet body; assembling, namely placing the magnet body on an assembling jig, and assembling different parts and the magnet body together to form a movement; forming a protective layer, and providing a spray gun piece to spray liquid insulating materials on the outer surface of the movement to form the insulating protective layer; baking and forming, namely providing an insulating protective layer of a baking machine core of the baking machine, so that the insulating protective layer is heated, solidified and formed; magnetizing and providing a magnetizing machine to magnetize the movement.
Preferably, the core comprises a magnetic conduction cover, a magnet body, a support, a magnetic conduction plate and a coil, wherein the magnet body is arranged in the magnetic conduction cover, the support is sleeved on the outer side of the magnet body, the magnetic conduction plate is arranged at one end, close to the support, of the magnet body, and the coil is sleeved on the outer side of the support and is positioned in a magnetic gap between the support and the magnetic conduction cover.
Preferably, the diameter of the magnetic conduction plate is equal to that of the magnet body, and the thickness of the magnetic conduction plate is equal to that of the magnetic conduction cover.
Preferably, the diameter of the magnet body is 5mm to 9mm, and the thickness of the magnet body is 4mm to 6mm.
Preferably, the magnetic conductive cover comprises a bottom plate and an annular side plate integrally formed with the bottom plate.
Preferably, the method further comprises the following steps: and (3) plating nickel, copper and nickel on the surface of the rectangular bar magnet through electrolytic operation to obtain the magnet body.
Preferably, the magnetic conductive cover and the magnetic conductive plate are made of metal materials.
Preferably, the magnetizing apparatus is provided with two magnetizing coils, and two ends of the magnet body are respectively magnetized into an N pole and an S pole by using the two magnetizing coils.
Preferably, the heated curing molding time is 1 to 3 hours.
The invention has the beneficial effects that: the invention realizes the work of magnetizing after assembling, ensures the quality of the magnet body, ensures the normal assembling process and has high assembling efficiency, thereby improving the production quality and economic efficiency of earphone products.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Fig. 2 is a schematic structural view of the movement of the present invention.
The reference numerals include:
1-movement
11-magnetic conductive cover 111-bottom plate 112-annular side plate
12-magnet 13-support 14-magnetic conductive plate
15-coil 16-magnetic gap.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 2, the magnetizing assembly process of the earphone insert of the present invention includes the following steps: preparing a magnet body 12, namely selecting neodymium iron boron blanks which pass through magnetic property inspection and meet standard requirements, cutting the neodymium iron boron blanks into rectangular magnets according to different magnetizing directions, grinding by using a grinding wheel and a guide rail, cutting the rectangular magnets into rectangular magnets with certain dimensions again after the grinding, putting the magnets into a chamfering machine, vibrating and grinding, and taking out the magnets to obtain the magnet body 12; assembling, namely placing the magnet body 12 on an assembling jig, and assembling different parts and the magnet body 12 together to form the movement 1; forming a protective layer, and providing a spray gun piece to spray liquid insulating materials on the outer surface of the movement 1 to form the insulating protective layer; baking and forming, namely providing an insulating protective layer of a baking machine core 1 of the baking machine, so that the insulating protective layer is heated, solidified and formed; magnetizing, and providing a magnetizing machine to magnetize the movement 1.
Before the assembly operation, the magnet body 12 is not magnetized in advance, but after the magnet body 12 and different parts are assembled together to form the machine core 1, an insulating protection layer is formed on the outer surface of the machine core 1 through a spray gun piece, then the insulating protection layer of the machine core 1 is dried through a baking machine, so that the insulating protection layer is heated, solidified and formed, and finally the machine core 1 is placed in a magnetizing machine as a whole to be magnetized, so that the magnet body 12 has magnetism, the usability of an earphone product is ensured, and the arrangement is that the magnet body 12 is not magnetized before assembly, so that the assembly of the machine core 1 is not affected by the interference of magnetic force, the assembly efficiency and the yield of the machine core 1 are increased, and the productivity and the benefit of the earphone are improved. The invention realizes the work of magnetizing after assembling, ensures the quality of the magnet body 12, ensures the normal assembling process and has high assembling efficiency, thereby improving the production quality and economic efficiency of earphone products.
The movement 1 of this embodiment includes magnetic conduction cover 11, magnet body 12, support 13, magnetic conduction board 14 and coil 15, magnet body 12 sets up in magnetic conduction cover 11, the outside of magnet body 12 is located to the support 13 cover, magnetic conduction board 14 sets up the one end that is close to support 13 at magnet body 12, coil 15 cover is established in the outside of support 13 and is located the magnetic gap 16 between support 13 and the magnetic conduction cover 11. Specifically, the magnet body 12 is arranged in the magnetic conduction cover 11, the bracket 13 is sleeved on the outer side of the magnet body 12, the magnetic conduction plate 14 is arranged at one end, close to the bracket 13, of the magnet body 12, the coil 15 is sleeved on the outer side of the bracket 13 and positioned in a magnetic gap 16 between the bracket 13 and the magnetic conduction cover 11, the coil 15 is positioned in a magnetic field formed by the magnet body 12, the magnetic conduction cover 11 and the magnetic conduction plate 14 and is communicated with an external electric signal to generate ampere force, the coil 15 is driven by the ampere force to enable the movement 1 to generate mechanical vibration, and the movement 1 can be fixed in a shell through the bracket 13, so that the shell can vibrate together with the movement 1.
The diameter of the magnetic conductive plate 14 in this embodiment is equal to the diameter of the magnet body 12, and the thickness of the magnetic conductive plate 14 is equal to the thickness of the magnetic conductive cover 11. Specifically, the diameter of the magnetic conductive plate 14 may be equal to the diameter of the magnet body 12, so as to ensure stable and consistent magnetic field strength, the thickness of the magnetic conductive plate 14 may be equal to the thickness of the magnetic conductive cover 11, and the magnetic conductive plate 14 and the magnetic conductive cover 11 may be made of the same material, so as to ensure normal use performance.
The diameter of the magnet body 12 of this embodiment is 5mm to 9mm, and the thickness of the magnet body 12 is 4mm to 6mm. Specifically, preferably, the diameter of the magnet body 12 is 9mm, the thickness of the magnet body 12 is 5mm, and the design of the dimension can enable the structural strength of the magnet body 12 to be more stable, the magnetic field strength to be stable, and the usability to be better.
The magnetic shield 11 of the present embodiment includes a bottom plate 111 and an annular side plate 112 integrally formed with the bottom plate 111. Specifically, the magnet body 12 may be disposed in the annular side plate 112 and fixed on the bottom plate 111, the magnetic conductive plate 14 may be fixed on a side of the magnet body 12 facing away from the bottom plate 111, the coil 15 may be disposed in a magnetic gap 16 between the magnet body 12 and the annular side plate 112, and the magnetic gap 16 is preferably disposed at 1.6mm, so as to satisfy the movement requirement of the coil 15 and the compactness of the movement 1.
The embodiment further includes the following steps: the rectangular bar magnet taken out after vibration grinding is plated with nickel copper nickel on the surface of the rectangular bar magnet by electrolytic operation to obtain a magnet body 12. Specifically, nickel copper and nickel are plated on the surface of the rectangular bar magnet through electrolytic operation, nickel is the most common coating on the powerful magnet, and the plated nickel copper and nickel can protect the rare earth magnet body 12 from being cracked and corroded in ambient air, and is a decorative facing with a bright appearance similar to the color of stainless steel, the thickness of the stainless steel is 15-25um, the working temperature is 200 ℃, the corrosion resistance is good, the appearance is good, and the manufacturing cost is low.
The magnetic conductive cover 11 and the magnetic conductive plate 14 of this embodiment are made of metal materials. Specifically, the magnetic conductive cover 11 and the magnetic conductive plate 14 are mutually matched to adjust the magnetic field generated by the magnet body 12 so as to improve the utilization rate of the magnetic field, wherein the magnetic conductive cover 11 and the magnetic conductive plate 14 can be made of metal materials, and can comprise iron, ferrosilicon alloy, ferronickel alloy, low-carbon steel, ferrocobalt alloy, silicon steel sheet and the like, and the application range is wide.
The magnetizing apparatus of the present embodiment is provided with two magnetizing coils 15, and both ends of the magnet body 12 are magnetized into N-pole and S-pole by the two magnetizing coils 15, respectively. Specifically, the magnetizing apparatus uses two magnetizing coils 15 to magnetize the two ends of the magnet body 12 into N pole and S pole respectively, so that the magnet body 12 can be quickly magnetized, and the magnetizing efficiency is effectively improved.
The heated curing molding time of this embodiment is 1h to 3h. Specifically, as preferable, the heat curing molding time is set to 2.5 hours, and the curing molding is thorough and good.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (9)
1. An earphone insert magnetizing assembly process is characterized in that: the method comprises the following steps:
preparing a magnet body, namely selecting neodymium iron boron blanks which pass through magnetic property inspection and meet standard requirements, cutting the neodymium iron boron blanks into rectangular magnets according to different magnetizing directions, grinding by using a grinding wheel and a guide rail, cutting the rectangular magnets into rectangular magnets with certain dimensions again after the grinding, putting the magnets into a chamfering machine, vibrating and grinding, and taking out the magnets to obtain the magnet body;
assembling, namely placing the magnet body on an assembling jig, and assembling different parts and the magnet body together to form a movement;
forming a protective layer, and providing a spray gun piece to spray liquid insulating materials on the outer surface of the movement to form the insulating protective layer;
baking and forming, namely providing an insulating protective layer of a baking machine core of the baking machine, so that the insulating protective layer is heated, solidified and formed;
magnetizing and providing a magnetizing machine to magnetize the movement.
2. The earphone insert magnetizing assembly process of claim 1, wherein: the magnetic conduction cover is arranged in the magnetic conduction cover, the support is sleeved on the outer side of the magnet body, the magnetic conduction plate is arranged at one end, close to the support, of the magnet body, and the coil is sleeved on the outer side of the support and is located in a magnetic gap between the support and the magnetic conduction cover.
3. The earphone insert magnetizing assembly process of claim 2, wherein: the diameter of the magnetic conduction plate is equal to that of the magnet body, and the thickness of the magnetic conduction plate is equal to that of the magnetic conduction cover.
4. The earphone insert magnetizing assembly process of claim 2, wherein: the diameter of the magnet body is 5mm to 9mm, and the thickness of the magnet body is 4mm to 6mm.
5. The earphone insert magnetizing assembly process of claim 2, wherein: the magnetic conduction cover comprises a bottom plate and an annular side plate integrally formed with the bottom plate.
6. The earphone insert magnetizing assembly process of claim 1, wherein: the method also comprises the following steps: and (3) plating nickel, copper and nickel on the surface of the rectangular bar magnet through electrolytic operation to obtain the magnet body.
7. The earphone insert magnetizing assembly process of claim 2, wherein: the magnetic conduction cover and the magnetic conduction plate are made of metal materials.
8. The earphone insert magnetizing assembly process of claim 1, wherein: the magnetizing machine is provided with two magnetizing coils, and two ends of the magnet body are respectively magnetized into an N pole and an S pole by utilizing the two magnetizing coils.
9. The earphone insert magnetizing assembly process of claim 1, wherein: the heated curing molding time is 1h to 3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211663554.0A CN116017260A (en) | 2022-12-23 | 2022-12-23 | Earphone insert magnetizing assembly process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211663554.0A CN116017260A (en) | 2022-12-23 | 2022-12-23 | Earphone insert magnetizing assembly process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116017260A true CN116017260A (en) | 2023-04-25 |
Family
ID=86018644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211663554.0A Pending CN116017260A (en) | 2022-12-23 | 2022-12-23 | Earphone insert magnetizing assembly process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116017260A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079135A (en) * | 2013-01-08 | 2013-05-01 | 深圳市韶音科技有限公司 | Bone-conduction headset device with single magnet and processing method thereof |
| JP2019125836A (en) * | 2018-01-12 | 2019-07-25 | パイオニア株式会社 | Magnetic circuit |
| CN112382501A (en) * | 2020-11-30 | 2021-02-19 | 东莞金坤新材料股份有限公司 | Manufacturing process of magnet for charging wireless earphone |
| CN113596649A (en) * | 2020-04-30 | 2021-11-02 | 深圳市韶音科技有限公司 | Bone conduction earphone and core module thereof |
| WO2022068081A1 (en) * | 2020-09-30 | 2022-04-07 | 歌尔股份有限公司 | Sound generator, and electronic product comprising same |
| CN114825807A (en) * | 2022-04-22 | 2022-07-29 | 东莞金坤新材料股份有限公司 | Assembling process of Halbach magnetic assembly |
-
2022
- 2022-12-23 CN CN202211663554.0A patent/CN116017260A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079135A (en) * | 2013-01-08 | 2013-05-01 | 深圳市韶音科技有限公司 | Bone-conduction headset device with single magnet and processing method thereof |
| JP2019125836A (en) * | 2018-01-12 | 2019-07-25 | パイオニア株式会社 | Magnetic circuit |
| CN113596649A (en) * | 2020-04-30 | 2021-11-02 | 深圳市韶音科技有限公司 | Bone conduction earphone and core module thereof |
| WO2022068081A1 (en) * | 2020-09-30 | 2022-04-07 | 歌尔股份有限公司 | Sound generator, and electronic product comprising same |
| CN112382501A (en) * | 2020-11-30 | 2021-02-19 | 东莞金坤新材料股份有限公司 | Manufacturing process of magnet for charging wireless earphone |
| CN114825807A (en) * | 2022-04-22 | 2022-07-29 | 东莞金坤新材料股份有限公司 | Assembling process of Halbach magnetic assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101375974B1 (en) | Coating apparatus for grain-boundary diffusion treatment | |
| CN109950039A (en) | A kind of molding machine and radiation ring preparation method of sintered NdFeB radiation ring | |
| CN110890210B (en) | Method for improving coercive force of arc-shaped neodymium iron boron magnet | |
| CN112530658B (en) | Integrated magnetizing method for Halbach array magnet assembly | |
| CN105513734A (en) | Light rare earth and heavy rare earth mixture for neodymium-iron-boron magnet, neodymium-iron-boron magnet and method for preparing neodymium-iron-boron magnet | |
| CN116017260A (en) | Earphone insert magnetizing assembly process | |
| CN105405636A (en) | Method for preparing cerium-added neodymium-iron-boron magnet by 3D printing technology | |
| CN109590560A (en) | A kind of large area Ferromagnetic target welding method and device | |
| CN105057827A (en) | Welding method for sintered NdFeB permanent magnets | |
| CN101959395B (en) | Shielding shell and surface processing method thereof | |
| JP3147016U (en) | Electrically controlled protractor using permanent magnets | |
| CN209867600U (en) | Flexible material closing device based on repulsion | |
| CN102453431A (en) | Silanization surface treatment technology of permanent magnetic material | |
| CN112712954B (en) | Preparation method of sintered neodymium-iron-boron magnet | |
| JP2007329639A (en) | Speaker apparatus and method for manufacturing the same | |
| CN111933385A (en) | Magnetic body coplanar bipolar magnetizing method | |
| CN111128514A (en) | Iron core reactor | |
| CN215357943U (en) | Electric permanent magnetic chuck for grinding circular saw blade | |
| CN204248195U (en) | For the arc blow cancellation element of argon arc welding machine | |
| CN104325212A (en) | Magnetic blow eliminating device for argon arc welding machine | |
| CN220944630U (en) | Polishing machine and clamp thereof | |
| KR101661604B1 (en) | Soft magnetic yoke | |
| CN204487368U (en) | A kind of neodymium iron boron magnetic body grinding machine magnetic shielding device | |
| WO2023208253A1 (en) | Magnetic assembly and magnetic ring structure | |
| KR101317229B1 (en) | A wire saw machine |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230425 |
|
| RJ01 | Rejection of invention patent application after publication |