CN107979259A - A kind of memory alloy driven micromachine - Google Patents
A kind of memory alloy driven micromachine Download PDFInfo
- Publication number
- CN107979259A CN107979259A CN201810029717.7A CN201810029717A CN107979259A CN 107979259 A CN107979259 A CN 107979259A CN 201810029717 A CN201810029717 A CN 201810029717A CN 107979259 A CN107979259 A CN 107979259A
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- CN
- China
- Prior art keywords
- memory alloy
- carrier
- shape
- alloy wire
- base
- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
Abstract
The invention discloses a kind of memory alloy driven micromachine, including shell, base and carrier, stent is fixed with base, carrier is located above stent；Stent a side is shape-memory alloy wire, another side is middle part disrupted configuration, the side disconnects both ends and is respectively equipped with the FPC plate pads electrically communicated with shape-memory alloy wire, carrier side corresponding with shape-memory alloy wire is equipped with the drive surface to match with shape-memory alloy wire, the carrier side wall is equipped with sinking magnetite, and metal magnetic conducting plate is embedded with sinking magnetite position correspondence position on base.Beneficial effects of the present invention are：1st, carrier movement is driven using marmem, it is simple in structure, reaction speed is fast；2nd, metal magnetic conducting plate is set by being set on carrier on sinking magnetite and base, the reset of carrier is reached using the magnetic attraction of sinking magnetite and metal magnetic conducting plate, module is few, simple for assembly process, and reset speed is fast.
Description
Technical field
The present invention relates to a kind of voice coil motor accessory process equipment, more particularly to a kind of memory alloy driven micro electric
Machine.
Background technology
Memorial alloy has nowadays been widely applied to camera field, particularly mobile phone is taken the photograph as a kind of new new material
As head mould group, this one kind has on the high-precision equipment of particular/special requirement.It is existing micro- using memory alloy material as what is mainly driven
Type motor there are problems that it is following some.Memorial alloy radiates slow phenomenon, existing settling mode generally using spring or other
Metalwork, which applies a reverse active force, makes carrier return to original position.But required for the repositioning method of existing mechanical energy form
The packaging technology of cooperation is sufficiently complex, and required precision is excessive, big for the difficulty of component and technique.Existing memory at the same time
For the micromachine of alloy driving there are carrier inclined problem, this will give the imaging of imaging effect especially high-precision equipment to imitate
Fruit brings strong influence.Memory alloy material is analyzed from reliability perspectives at the same time, per se with it is serious the defects of, when long
Between work after, memory alloy material can produce fatigue strength, performance itself can be significantly weak, only by size of current control
Memorial alloy fever deformation driving carrier movement can make lens assembly focusing inaccurate, produce large error and reaction is slow.
The content of the invention
In order to overcome drawbacks described above, the present invention provides a kind of memory alloy driven micromachine.
To achieve these goals, the technical scheme is that：A kind of memory alloy driven micromachine, including it is outer
Shell, base and carrier, the shell and base are assembled into assembling cavity, and carrier is arranged in assembly cavity body and can transport vertically
It is dynamic, stent is fixed with base, carrier is located above stent；Stent a side is shape-memory alloy wire, and another side is
Middle part disrupted configuration, the side disconnect both ends and are respectively equipped with the FPC plate pads electrically communicated with shape-memory alloy wire, carrier
Side corresponding with shape-memory alloy wire is equipped with the drive surface to match with shape-memory alloy wire, the shape-memory alloy wire
In the case of energization, upwards thrust is produced to drive surface, axially movable, the carrier side wall is equipped with sinking magnetic to driving carrier
Stone, is embedded with metal magnetic conducting plate on base with sinking magnetite position correspondence position.
Preferably, lead positioning and guiding is passed through between the carrier and base.
Preferably, the base corresponding to shape-memory alloy wire side is equipped with two leads, and carrier is equipped with leading
To the matched pilot hole of column, one of pilot hole is carrier side hatch frame.
Preferably, carrier is equipped with two sinking magnetites equipped with drive surface side, and two sinking magnetites are along carrier center line pair
Claim distribution.
Preferably, side opposite with drive surface on the carrier is equipped with hall sensing magnetite, and FPC plates weld on stent
Point one end is welded with the FPC plates with reinforcing plate, and the spacing knot to cooperate is equipped with FPC plates contact surface on the base
Structure.
Preferably, the stent is metal frame, and the both ends of a side of shape-memory alloy wire are the structure that is upturned, and are remembered
Recall Alloy silk both ends to be individually fixed in the tilting structure of respective side；The adjacent two sides of shape-memory alloy wire on stent
It is fixed by caulking on base.
Preferably, the drive surface is equipped with downward card slot, is stuck in the middle part of shape-memory alloy wire in card slot.
Compared with prior art, beneficial effects of the present invention are：1st, carrier movement, structure are driven using marmem
Simply, reaction speed is fast；2nd, metal magnetic conducting plate is set by being set on carrier on sinking magnetite and base, using sinking magnetite and
The magnetic attraction of metal magnetic conducting plate reaches the reset of carrier, and module is few, simple for assembly process, reset speed is fast；3rd, carrier and
It is oriented between base by lead, it is accurate to be oriented to, and stability is high；And the pilot hole that a lead coordinates is in carrier side
Perforate, easy to assemble assembling；4th, opposing magnetic force is produced between Hall sensor and FPC plates, is conducive to carrier stabilization lead and leads
To avoiding tilting；5th, Hall sensor structure can continue to detect carrier positions, be easy to after memory alloy wire performance degradation
Displacement movement compensation is provided in time, avoids the occurrence of error.
Brief description of the drawings
Fig. 1 is structural blast schematic diagram of the present invention.
Fig. 2 is the base and carrier combination structure diagram of the present invention.
Embodiment
Technical scheme is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, belong to the scope of protection of the invention.
In the description of the present invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment 1
As shown in Fig. 1 Fig. 2, a kind of memory alloy driven micromachine, including shell 1, base 2 and carrier 3, the shell 1
Assembling cavity is assembled into base 2, carrier 3 is arranged in assembly cavity body and may be axially movable, and stent is fixed with base 2
4, carrier 3 is located at the top of stent 4；4 a side of stent is shape-memory alloy wire 5, and another side is middle part disrupted configuration, should
Side disconnects both ends and is respectively equipped with the FPC plates pad 6 electrically communicated with shape-memory alloy wire 5, and carrier 3 is closed with shape memory
Spun gold 5 corresponds to side and is equipped with the drive surface 7 to match with shape-memory alloy wire 5, and the shape-memory alloy wire 5 is in energization feelings
Under condition, upwards thrust is produced to drive surface 7, axially movable, 3 side wall of carrier is equipped with two sinking magnetic to driving carrier 3
Stone 8, is embedded with metal magnetic conducting plate 9 on base 2 with 8 position correspondence position of sinking magnetite.
Embodiment 2
As shown in Fig. 1 Fig. 2, a kind of memory alloy driven micromachine, including shell 1, base 2 and carrier 3, the shell 1
Assembling cavity is assembled into base 2, carrier 3 is arranged in assembly cavity body and may be axially movable, and stent is fixed with base 2
4, carrier 3 is located at the top of stent 4；4 a side of stent is shape-memory alloy wire 5, and another side is middle part disrupted configuration, should
Side disconnects both ends and is respectively equipped with the FPC plates pad 6 electrically communicated with shape-memory alloy wire 5, and carrier 3 is closed with shape memory
Spun gold 5 corresponds to side and is equipped with the drive surface 7 to match with shape-memory alloy wire 5, and the shape-memory alloy wire 5 is in energization feelings
Under condition, upwards thrust is produced to drive surface 7, axially movable, 3 side wall of carrier is equipped with sinking magnetite 8 to driving carrier 3,
On base 2 metal magnetic conducting plate 9 is embedded with 8 position correspondence position of sinking magnetite.Bottom corresponding to 5 side of shape-memory alloy wire
Seat 2 is equipped with two leads 10, and carrier 3 is equipped with pilot hole 11 matched with lead 10, one of pilot hole
1101 be carrier side hatch frame.
Embodiment 3
As shown in Fig. 1 Fig. 2, a kind of memory alloy driven micromachine, including shell 1, base 2 and carrier 3, the shell 1
Assembling cavity is assembled into base 2, carrier 3 is arranged in assembly cavity body and may be axially movable, and stent is fixed with base 2
4, carrier 3 is located at the top of stent 4；4 a side of stent is shape-memory alloy wire 5, and another side is middle part disrupted configuration, should
Side disconnects both ends and is respectively equipped with the FPC plates pad 6 electrically communicated with shape-memory alloy wire 5, and carrier 3 is closed with shape memory
Spun gold 5 corresponds to side and is equipped with the drive surface 7 to match with shape-memory alloy wire 5, and the shape-memory alloy wire 5 is in energization feelings
Under condition, upwards thrust is produced to drive surface 7, axially movable, 3 side wall of carrier is equipped with sinking magnetite 8 to driving carrier 3,
On base 2 metal magnetic conducting plate 9 is embedded with 8 position correspondence position of sinking magnetite.Bottom corresponding to 5 side of shape-memory alloy wire
Seat 2 is equipped with two leads 10, and carrier 3 is equipped with pilot hole 11 matched with lead 10, one of pilot hole
1101 be carrier side hatch frame.
The side opposite with drive surface 7 is equipped with Hall sensor 12 on carrier 3, and 6 one end of FPC plates pad is welded on stent
Connect and be fixed with the FPC plates 13 with reinforcing plate, on the base 2 and 13 contact surface of FPC plates is equipped with the position limiting structure to cooperate.
Technical scheme is not limited to the limitation of above-mentioned specific embodiment, and every technique according to the invention scheme is done
The technology deformation gone out, each falls within protection scope of the present invention.
Claims (7)
1. a kind of memory alloy driven micromachine, including shell, base and carrier, the shell and base are assembled into assembling
Cavity, carrier are arranged in assembly cavity body and may be axially movable, it is characterised in that：Stent, carrier position are fixed with base
Above stent；Stent a side is shape-memory alloy wire, and another side is middle part disrupted configuration, which disconnects both ends
The FPC plate pads electrically communicated with shape-memory alloy wire are respectively equipped with, carrier side corresponding with shape-memory alloy wire is set
There is the drive surface to match with shape-memory alloy wire, the shape-memory alloy wire produces drive surface in the case of energization
Upwards thrust, axially movable, the carrier side wall is equipped with sinking magnetite to driving carrier, on base with sinking magnetite position pair
Position is answered to be embedded with metal magnetic conducting plate.
2. memory alloy driven micromachine according to claim 1, it is characterised in that：Between the carrier and base
Pass through lead positioning and guiding.
3. memory alloy driven micromachine according to claim 2, it is characterised in that：Shape-memory alloy wire side
Corresponding base is equipped with two leads, and carrier is equipped with and the matched pilot hole of lead, one of pilot hole
For carrier side hatch frame.
4. the memory alloy driven micromachine according to claim 1 or 3, it is characterised in that：Carrier is equipped with driving
Face side is equipped with two sinking magnetites, and two sinking magnetites are symmetrical along carrier center line.
5. memory alloy driven micromachine according to claim 4, it is characterised in that：On the carrier with drive surface
Opposite side is equipped with Hall sensor, and FPC plate pads one end is welded with the FPC plates with reinforcing plate, institute on stent
State on base and FPC plates contact surface is equipped with the position limiting structure to cooperate.
6. memory alloy driven micromachine according to claim 1, it is characterised in that：The stent is metal frame,
The both ends of a side of shape-memory alloy wire are the structure that is upturned, and memorial alloy B alloy wire both ends are individually fixed in respective side
Tilting structure on；The adjacent two sides of shape-memory alloy wire are fixed by caulking on base on stent.
7. the memory alloy driven micromachine according to claim 1 or 6, it is characterised in that：The drive surface is equipped with
Downward card slot, shape-memory alloy wire middle part are stuck in card slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029717.7A CN107979259A (en) | 2018-01-12 | 2018-01-12 | A kind of memory alloy driven micromachine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810029717.7A CN107979259A (en) | 2018-01-12 | 2018-01-12 | A kind of memory alloy driven micromachine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107979259A true CN107979259A (en) | 2018-05-01 |
Family
ID=62005914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810029717.7A Pending CN107979259A (en) | 2018-01-12 | 2018-01-12 | A kind of memory alloy driven micromachine |
Country Status (1)
| Country | Link |
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| CN (1) | CN107979259A (en) |
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| CN109889716A (en) * | 2019-03-21 | 2019-06-14 | 河南省皓泽电子有限公司 | A kind of lens driving mechanism |
| CN111999846A (en) * | 2020-08-26 | 2020-11-27 | 诚瑞光学(常州)股份有限公司 | Lens driving device |
| CN112737271A (en) * | 2019-10-28 | 2021-04-30 | 华为技术有限公司 | Motor, camera module and mobile terminal |
| CN112865479A (en) * | 2019-11-26 | 2021-05-28 | 华为技术有限公司 | Memory alloy motor module, assembly system and assembly method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 454763 Yao Yao Industrial Zone, Henan, Mengzhou, Jiaozuo Applicant after: Henan haoze Electronic Co., Ltd Address before: 454763 Yao Yao Industrial Zone, Henan, Mengzhou, Jiaozuo Applicant before: HENAN HAOZE ELECTRONICS CO., LTD. |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180501 |
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| RJ01 | Rejection of invention patent application after publication |