CN110167262B - Flat vibration motor commutator plate structure and manufacturing method thereof - Google Patents
Flat vibration motor commutator plate structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN110167262B CN110167262B CN201910285525.7A CN201910285525A CN110167262B CN 110167262 B CN110167262 B CN 110167262B CN 201910285525 A CN201910285525 A CN 201910285525A CN 110167262 B CN110167262 B CN 110167262B
- Authority
- CN
- China
- Prior art keywords
- reversing
- palladium
- silver alloy
- plate structure
- vibration motor
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 229910001316 Ag alloy Inorganic materials 0.000 claims abstract description 50
- SWELZOZIOHGSPA-UHFFFAOYSA-N palladium silver Chemical compound [Pd].[Ag] SWELZOZIOHGSPA-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000000758 substrate Substances 0.000 claims abstract description 8
- 229910000597 tin-copper alloy Inorganic materials 0.000 claims description 12
- VRUVRQYVUDCDMT-UHFFFAOYSA-N [Sn].[Ni].[Cu] Chemical compound [Sn].[Ni].[Cu] VRUVRQYVUDCDMT-UHFFFAOYSA-N 0.000 claims description 11
- 230000003746 surface roughness Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 239000011230 binding agent Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 229910002056 binary alloy Inorganic materials 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 239000002344 surface layer Substances 0.000 abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011889 copper foil Substances 0.000 abstract description 7
- 229910000531 Co alloy Inorganic materials 0.000 abstract description 4
- WPGMQKPFTZAAAW-UHFFFAOYSA-N [Au].[Co].[Cu].[Ni] Chemical compound [Au].[Co].[Cu].[Ni] WPGMQKPFTZAAAW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 3
- 101001045744 Sus scrofa Hepatocyte nuclear factor 1-beta Proteins 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229910001325 element alloy Inorganic materials 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/006—Structural associations of commutators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/10—Arrangements of brushes or commutators specially adapted for improving commutation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
Abstract
The invention relates to a flat vibration motor commutator plate structure, comprising: the printed circuit substrate is provided with a mounting hole, and a plurality of reversing surfaces distributed along the circumference of the mounting hole are opposite; the device is characterized in that the reversing surface comprises two reversing surfaces which are symmetrically arranged at two sides of the mounting hole and provided with electricity-connecting lugs at the outer sides; the commutation face comprises: a reversing basal plane arranged on the printed circuit substrate and a palladium-silver alloy covering surface connected with the upper end of the reversing basal plane. The flat vibration motor reversing plate structure uses the palladium-silver alloy covering surface connected with the upper end of the reversing base surface to replace a surface layer which is electroplated on a copper foil and is formed by nickel-copper-gold-cobalt alloy, the surface layer of the reversing surface is not easy to lose efficacy, short circuit is not easy to generate between the reversing surfaces, and the service life of the motor is longer.
Description
Technical Field
The invention relates to the field of mobile phones, in particular to a flat vibration motor commutator plate structure and a manufacturing method thereof.
Background
The flat vibration motor of the mobile phone is matched with the electric brush through the reversing surface, so that the motor continuously rotates and drives the polarizing block to rotate to generate vibration; the reversing plate comprises a printed circuit board (FPCB) provided with a plurality of pairs of reversing surfaces, wherein each reversing surface comprises a copper foil base layer arranged at the upper end of the FPCB and a surface layer which is electroplated on the copper foil and is formed by nickel-copper-gold-cobalt alloy; when the motor works, due to the reasons of friction of sparks, electric brushes and the reversing surface and the like, the surface layer of the reversing surface is easy to lose efficacy, or scratches scratched by the electric brushes cause short circuit between adjacent reversing surfaces, so that the motor is ineffective, and the service life of the motor is short.
Disclosure of Invention
The invention aims to overcome the defects that the surface layer of the current reversing surface is easy to lose efficacy, or the scratches scratched by electric brushes cause short circuit between adjacent reversing surfaces, so that a motor fails, and the service life of the motor is short.
The specific technical scheme of the invention is as follows:
a flat vibration motor commutator plate structure comprising: the printed circuit substrate is provided with a mounting hole, and a plurality of reversing surfaces distributed along the circumference of the mounting hole are opposite; the device is characterized in that the reversing surface comprises two reversing surfaces which are symmetrically arranged at two sides of the mounting hole and provided with electricity-connecting lugs at the outer sides; the commutation face comprises: a reversing basal plane arranged on the printed circuit substrate and a palladium-silver alloy covering surface connected with the upper end of the reversing basal plane. The palladium-silver alloy is a binary alloy with palladium as a base and silver added, palladium and silver can be dissolved in each other infinitely to form a continuous solid solution, the palladium-silver alloy has good oxidation resistance at room temperature, the Vickers hardness of the palladium-silver alloy reaches 736-883 MPa, the palladium-silver alloy has strong wear resistance, and the palladium-silver alloy is commonly used as a weak electric contact. The flat vibration motor reversing plate structure uses the palladium-silver alloy covering surface connected with the upper end of the reversing base surface to replace a surface layer which is electroplated on a copper foil and is formed by nickel-copper-gold-cobalt alloy, the surface layer of the reversing surface is not easy to lose efficacy, short circuit is not easy to generate between the reversing surfaces, and the service life of the motor is longer.
Preferably, the reversing basal plane is an MX215 nickel-tin-copper alloy basal plane. The MX215 material is a high-nickel tin-copper alloy, the MX215 material is a five-element alloy containing noble metals such as Ag, Pt, Au, Ni, Cu and the like, and the MX215 material and the five-element alloy are the most excellent electric contact materials; the reversing base surface is an MX215 nickel-tin-copper alloy base surface, and compared with a copper foil base layer, the reversing base surface has the advantages of strong conductivity, stable contact resistance, corrosion resistance, high reliability and the like.
Preferably, the surface roughness grade of the upper end of the palladium-silver alloy covered surface is IT6 or higher than IT 6. The Ra max/mum at the upper end of the palladium-silver alloy covered surface is 0.2 according to the size of the palladium-silver alloy covered surface. The surface roughness grade of the upper end of the palladium-silver alloy covering surface is IT6 or higher than IT6, the palladium-silver alloy covering surface has high dimensional accuracy, and the palladium-silver alloy covering surface can improve the wear resistance, stability, contact rigidity and fatigue strength and prolong the service life.
Preferably, the shape of the reversing surface is a sector; a gap is arranged between the opposite side edges of the two adjacent reversing surfaces, and the opposite side edges of the two adjacent reversing surfaces are parallel. The manufacture is facilitated, and short circuit cannot be generated between opposite side edges of two adjacent reversing surfaces.
A flat vibration motor reversing plate structure and a manufacturing method thereof are disclosed, the flat vibration motor reversing plate structure is the flat vibration motor reversing plate structure, and the first step is to punch and form palladium-silver alloy covering surfaces which have the same number as reversing surfaces and are in one-to-one correspondence in shape; removing burrs on the outer side of the palladium-silver alloy covering surface; step three, covering the MX215 nickel-tin-copper alloy base plane on the printed circuit board by the palladium-silver alloy covering surface in a one-to-one correspondence manner, and bonding by using a binder; fourthly, welding the outer side of the reversing surface and the periphery of the electricity-connecting lug, the palladium-silver alloy covering surface and the reversing base surface through electronic spot welding to ensure the conduction of a circuit; and step four, performing wheel grinding or grinding on the upper end of the palladium-silver alloy covered surface, wherein the surface roughness grade of the upper end of the palladium-silver alloy covered surface is IT6 or is higher than IT 6. The flat vibration motor reversing plate structure and the manufacturing method can meet the requirements that the surface layer of the reversing surface is not easy to lose efficacy, short circuit is not easy to generate between the reversing surfaces, and the service life of the motor is longer; the palladium-silver alloy covering surface is bonded with the MX215 nickel-tin-copper alloy base surface through a binder, and the palladium-silver alloy covering surface on the outer side of the reversing surface and the periphery of the electricity-connecting lug and the reversing base surface are welded through electronic spot welding, so that the connection is convenient and firm, and the conduction of a circuit is ensured.
Compared with the prior art, the invention has the beneficial effects that: the flat vibration motor reversing plate structure uses the palladium-silver alloy covering surface connected with the upper end of the reversing base surface to replace a surface layer which is electroplated on a copper foil and is formed by nickel-copper-gold-cobalt alloy, the surface layer of the reversing surface is not easy to lose efficacy, short circuit is not easy to generate between the reversing surfaces, and the service life of the motor is longer. The reversing base surface is an MX215 nickel-tin-copper alloy base surface, and compared with a copper foil base layer, the reversing base surface has the advantages of strong conductivity, stable contact resistance, corrosion resistance, high reliability and the like. The surface roughness grade of the upper end of the palladium-silver alloy covering surface is IT6 or higher than IT6, the palladium-silver alloy covering surface has high dimensional accuracy, and the palladium-silver alloy covering surface can improve the wear resistance, stability, contact rigidity and fatigue strength and prolong the service life. The shape of the reversing surfaces is fan-shaped, a gap is arranged between opposite side edges of two adjacent reversing surfaces, the opposite side edges of the two adjacent reversing surfaces are parallel, manufacturing is facilitated, and short circuit cannot be generated between the opposite side edges of the two adjacent reversing surfaces. The flat vibration motor reversing plate structure and the manufacturing method can meet the requirements that the surface layer of the reversing surface is not easy to lose efficacy, short circuit is not easy to generate between the reversing surfaces, and the service life of the motor is longer; the palladium-silver alloy covering surface is bonded with the MX215 nickel-tin-copper alloy base surface through a binder, and the palladium-silver alloy covering surface on the outer side of the reversing surface and the periphery of the electricity-connecting lug and the reversing base surface are welded through electronic spot welding, so that the connection is convenient and firm, and the conduction of a circuit is ensured.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural view of a stamped palladium-silver alloy cover surface.
In the figure: the circuit board comprises a mounting hole 1, a printed circuit board 2, an electric lug 3, a reversing surface 4, a palladium-silver alloy covering surface 5, an MX215 nickel-tin-copper alloy base surface 6 and a gap 7.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in the attached figures 1 and 2: a flat vibration motor commutator plate structure comprising: a printed circuit substrate 2 provided with a mounting hole 1, three reversing surfaces distributed along the circumference of the mounting hole 1; the reversing surface comprises two reversing surfaces 4 which are symmetrically arranged at two sides of the mounting hole 1 and provided with electric lugs 3 at the outer sides; the commutation surface 4 comprises: a reversing basal plane arranged on the printed circuit substrate 2, and a palladium-silver alloy covering surface 5 connected with the upper end of the reversing basal plane. In the embodiment, the palladium-silver alloy covering surface 5 is bonded with the upper end of the reversing basal plane through the adhesive,
the reversing basal plane is an MX215 nickel-tin-copper alloy basal plane 6.
The surface roughness grade of the upper end of the palladium-silver alloy covered surface 5 is IT 6.
The shape of the reversing surface 4 is a sector; a gap 7 is arranged between the opposite side edges of two adjacent reversing surfaces 4, and the opposite side edges of two adjacent reversing surfaces 4 are parallel. The two sides of the sector are asymmetric.
A flat vibration motor commutator plate structure and its preparation method, the said flat vibration motor commutator plate structure is the above-mentioned flat vibration motor commutator plate structure, step one, punch and shape the same number and shape of 4 commutating surfaces and palladium silver alloy cover surface 5 of one-to-one correspondence once; removing burrs on the outer side wall of the palladium-silver alloy covering surface 5; step three, covering the MX215 nickel-tin-copper alloy base surface 6 on the printed circuit board 2 by the palladium-silver alloy covering surfaces 5 in a one-to-one corresponding manner and bonding the base surface by a bonding agent; fourthly, welding the palladium-silver alloy covering surface 5 on the outer side of the reversing surface 4 and the periphery of the electric lug 3 with the reversing base surface through electronic spot welding to ensure the conduction of a circuit; and step four, performing wheel grinding or grinding on the upper end of the palladium-silver alloy covered surface 5, wherein the surface roughness grade of the upper end of the palladium-silver alloy covered surface 5 is IT 6.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (4)
1. A flat vibration motor commutator plate structure comprising: the printed circuit substrate is provided with a mounting hole, and a plurality of reversing surfaces distributed along the circumference of the mounting hole are opposite; the device is characterized in that the reversing surface comprises two reversing surfaces which are symmetrically arranged at two sides of the mounting hole and provided with electricity-connecting lugs at the outer sides; the commutation face comprises: a reversing base surface arranged on the printed circuit substrate, and a palladium-silver alloy covering surface connected with the upper end of the reversing base surface; the palladium-silver alloy is a binary alloy with palladium as a base and silver added; the reversing base surface is an MX215 nickel-tin-copper alloy base surface, and the palladium-silver alloy covering surface is bonded with the upper end of the reversing base surface through an adhesive.
2. The flat vibration motor commutator plate structure of claim 1, wherein: the surface roughness grade of the upper end of the palladium-silver alloy covering surface is IT6 or higher than IT 6.
3. The flat vibration motor commutator plate structure of claim 1 or 2, wherein: the reversing surface is in a fan shape; a gap is arranged between the opposite side edges of the two adjacent reversing surfaces, and the opposite side edges of the two adjacent reversing surfaces are parallel.
4. A flat vibration motor commutator plate structure and a manufacturing method thereof, wherein the flat vibration motor commutator plate structure is the flat vibration motor commutator plate structure of any one of claims 1 to 3, and is characterized in that: firstly, punching and forming palladium-silver alloy covering surfaces which are the same in number as the reversing surfaces and in one-to-one correspondence in shape; removing burrs on the outer side of the palladium-silver alloy covering surface; step three, covering the MX215 nickel-tin-copper alloy base plane on the printed circuit board by the palladium-silver alloy covering surface in a one-to-one correspondence manner, and bonding by using a binder; welding the palladium-silver alloy covering surface on the outer side of the reversing surface and the periphery of the electricity-connecting lug and the reversing base surface through electronic spot welding to ensure the conduction of a circuit; and step four, performing wheel grinding or grinding on the upper end of the palladium-silver alloy covered surface, wherein the surface roughness grade of the upper end of the palladium-silver alloy covered surface is IT6 or is higher than IT 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285525.7A CN110167262B (en) | 2019-04-10 | 2019-04-10 | Flat vibration motor commutator plate structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910285525.7A CN110167262B (en) | 2019-04-10 | 2019-04-10 | Flat vibration motor commutator plate structure and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110167262A CN110167262A (en) | 2019-08-23 |
| CN110167262B true CN110167262B (en) | 2021-12-07 |
Family
ID=67639348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910285525.7A Active CN110167262B (en) | 2019-04-10 | 2019-04-10 | Flat vibration motor commutator plate structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110167262B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607086A (en) * | 1983-06-23 | 1985-01-14 | 田中貴金属工業株式会社 | Material for slide |
| CN101673989A (en) * | 2009-10-12 | 2010-03-17 | 深圳市双环全新机电股份有限公司 | Precise coreless cup direct-current geared motor |
| CN205407514U (en) * | 2016-03-04 | 2016-07-27 | 浙江天驰电子有限公司 | Circuit board |
-
2019
- 2019-04-10 CN CN201910285525.7A patent/CN110167262B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS607086A (en) * | 1983-06-23 | 1985-01-14 | 田中貴金属工業株式会社 | Material for slide |
| CN101673989A (en) * | 2009-10-12 | 2010-03-17 | 深圳市双环全新机电股份有限公司 | Precise coreless cup direct-current geared motor |
| CN205407514U (en) * | 2016-03-04 | 2016-07-27 | 浙江天驰电子有限公司 | Circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110167262A (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110167262B (en) | Flat vibration motor commutator plate structure and manufacturing method thereof | |
| JP2006314191A (en) | Conductive substrate including gold-copper layer, motor, vibrating motor and metal terminal for electrical contact | |
| CN210225864U (en) | Multilayer braided wire flexible circuit board | |
| CN202872144U (en) | Brush assembly and brush used for flat vibration motor | |
| CN203277929U (en) | Novel disc type slip ring brush structure | |
| KR101314555B1 (en) | SMT compatible Elastomer Contact Terminal and Method for making the same | |
| CN215734352U (en) | Cell-phone mainboard upper cover electric conduction gold paper tinsel | |
| CN110034657B (en) | Metal base voice coil motor | |
| CN111029181B (en) | Electric contact for local plating | |
| CN107633967B (en) | Key switch support, preparation method, key and electronic equipment | |
| JP4866986B2 (en) | Brush for motor, motor provided with the same, and method for manufacturing brush | |
| CN111834781A (en) | Conductive terminal and positive and negative plug USB socket | |
| CN200959550Y (en) | Flat vibration source and electric connector | |
| CN1917303A (en) | Integral brush and vibration motor having the same | |
| CN213637434U (en) | Slip ring interconnection device | |
| CN109661102B (en) | Ceramic substrate circuit board and method for manufacturing the same | |
| CN210536405U (en) | Flat motor mounting structure | |
| CN220774790U (en) | Unidirectional double-contact terminal for wire-to-board connector | |
| KR20120005244A (en) | Printed-circuit board and vibration motor having the same | |
| KR102469313B1 (en) | Heating Element and Method for Manufacturing the Same | |
| JP2003321794A (en) | Sliding contact segment disposed at insulating material | |
| CN215300914U (en) | Loudspeaker and electronic equipment with same | |
| CN200959549Y (en) | Electric connector of flat vibration source | |
| CN200959551Y (en) | Flat vibration source and electric connector | |
| CN102176569A (en) | Electric connector and self-service terminal using electric connector |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Structure and manufacturing method of reversing plate of flat vibration motor Effective date of registration: 20221228 Granted publication date: 20211207 Pledgee: Dongyang Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG DONGYANG DONGCI CHENGJI ELECTRONIC Co.,Ltd. Registration number: Y2022330003719 |