CN108539958A - A kind of component of voice coil motor - Google Patents
A kind of component of voice coil motor Download PDFInfo
- Publication number
- CN108539958A CN108539958A CN201810260076.6A CN201810260076A CN108539958A CN 108539958 A CN108539958 A CN 108539958A CN 201810260076 A CN201810260076 A CN 201810260076A CN 108539958 A CN108539958 A CN 108539958A
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- CN
- China
- Prior art keywords
- carrier
- hole
- positioning
- voice coil
- coil 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.)
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Links
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 7
- 230000008018 melting Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 5
- 239000003292 glue Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 239000012050 conventional carrier Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
A kind of component of voice coil motor, including carrier and lower cover open up first through hole in carrier for assembling eyeglass；Carrier upper surface is equipped with multiple first glue groove, the upper shrapnel of bonding positioning；The upper surface of carrier is equipped at least three Stroke Control convex blocks, and each Stroke Control convex block is uniformly distributed composition support terrace along the circumferencial direction of first through hole, and the surface depth of parallelism of each Stroke Control convex block is consistent；The stroke of carrier in above-below direction is limited by against the yoke of positioning voice coil motor.The second through-hole is offered in the middle part of lower cover, aligns camera eyeglass；Lower cap upper surface is equipped with four positioning columns, multiple hot molten columns and a dust ring；Each positioning column is located at four angles of upper surface, positions yoke；Each upward projection of hot molten column, the lower shrapnel of welding positioning；Dust ring is around the second through-hole and concentric setting；Lower cover lower surface is set there are three bottom boss, is mutually arranged around the second through-hole and in 120 degree of angles, the line for constituting three is triangle.
Description
Technical Field
The invention relates to a voice coil motor of a miniature camera, in particular to a voice coil motor assembly. The miniature camera can be assembled and applied to thin electronic products such as mobile phones, tablet computers and intelligent watches.
Background
In existing camera Voice Coil Motor (VCM) designs, the carrier is one of the most critical components. An upper through hole and a lower through hole are formed in the carrier and used for assembling lenses of the camera; the periphery of the carrier is wound with a coil, and a yoke of the motor is provided with a magnet corresponding to the coil, so that when the coil is electrified, the carrier can generate vertical displacement due to electromagnetic induction, and zooming and focusing of the camera are realized; the upper end face or/and the lower end face of the carrier is/are also provided with elastic sheets for generating elasticity, so that the carrier can be restored to the initial horizontal position when the coil is not electrified.
As shown in fig. 1 and 2, a carrier of the prior art includes a cylindrical base 1, and a winding dispensing portion 3 and a winding carrying surface 4 are disposed on the periphery of the base 1 corresponding to a coil; wherein, a plurality of plastic surfaces 5 are arranged around the bottom of the carrier. In the carrier with the existing design, the plastic surface 5 at the bottom of the carrier is contacted with the magnet in the aspect of controlling the stroke of the voice coil motor, so that the requirements on the parallelism and the appearance of each plastic surface 5 are high, and the arc surface 6 needs to be processed, thereby increasing the difficulty of mould processing and having high requirements on dispensing precision in the production process; in addition, based on the structural design of the conventional carrier, when the voice coil motor is subjected to external force impact, the plastic surface 5 of the carrier is easily deformed due to the impact of the external force, thereby reducing the reliability of the voice coil motor.
In addition, in the design of current voice coil motor, the lower surface of motor lower cover is equipped with the recess, and the purpose of reserving this recess is in order to satisfy the customer and carry out the follow-up assembly requirement of camera product. By means of the design of the grooves, when the voice coil motor and the support are assembled, the assembling precision of the voice coil motor and the support can be guaranteed, so that the requirements on the parallelism and the flatness of the grooves are high, and the difficulty of mold processing is increased.
Therefore, how to solve the above-mentioned deficiencies of the prior art is a problem to be solved by the present invention.
Disclosure of Invention
The invention aims to provide a voice coil motor assembly.
In order to achieve the purpose, the invention adopts the technical scheme that:
the assembly of a kind of voice coil motor, including a carrier and assembling and cooperating with the lower cover under the carrier; wherein,
a first through hole is formed in the carrier along the up-down direction and used for assembling a lens of a camera;
the upper end face of the carrier is provided with a plurality of first dispensing grooves, and each first dispensing groove is concavely arranged on the upper end face and is connected with an upper elastic sheet of the positioning voice coil motor through bonding;
the upper end surface of the carrier is also provided with at least three stroke control lugs, the stroke control lugs are uniformly distributed along the circumferential direction of the first through hole to form a supporting sky surface, and the surface parallelism of the stroke control lugs is consistent; limiting the stroke of the carrier in the up-and-down direction by abutting and positioning the yoke of the voice coil motor;
a second through hole is formed in the middle of the lower cover and is coaxial with the first through hole; wherein,
the upper surface of the lower cover is provided with four positioning columns, a plurality of hot melting columns and a dustproof ring; each positioning column corresponds to four corners of the upper surface respectively and is used for connecting and positioning the yoke iron; each hot melting column is arranged in an upward protruding mode and used for welding and positioning a lower elastic sheet of the voice coil motor; the dustproof ring is arranged around the second through hole and is concentric with the second through hole;
the lower surface of lower cover is equipped with three bottom boss, and each bottom boss centers on the second through-hole sets up, and is 120 degrees angles each other and arranges, and the line that constitutes the three is a triangle-shaped.
The relevant content in the above technical solution is explained as follows:
1. in the above scheme, at least three stroke control lugs are uniformly distributed in the circumferential direction, so that a stable supporting roof can be formed. The area of the supporting ceiling is larger, and the circular arc surface does not need to be processed, so that the control is easier to be carried out during the processing and production of the die compared with the prior art, and the appearance is not easy to be poor; in addition, glue dispensing is not needed in the production process of the voice coil motor, so that the problem of poor gluing is avoided.
2. In the above scheme, each first dispensing groove is uniformly distributed on the upper end surface along the circumferential direction of the first through hole.
3. In the above scheme, the outer side wall of the carrier is further provided with a plurality of anti-rotation stoppers in a protruding manner, each anti-rotation stopper is positioned relative to a yoke of the voice coil motor, and each anti-rotation stopper is arranged around the carrier along the circumferential direction; borrow this design, can play further enhancement to the structural strength of carrier, better protection carrier when voice coil motor receives external force and assaults makes it not fragile.
4. In the above scheme, the outer side wall of the carrier is convexly provided with the winding post, and the winding post is used for positioning the wire end of the coil of the voice coil motor.
5. In the above scheme, the dust-proof ring is arranged around the second through hole to play a role in sealing the carrier.
6. In the scheme, through the arrangement of the three bottom bosses, on one hand, the surface parallelism and the planeness of the three bottom bosses are only required to be ensured, and compared with the conventional groove on the whole lower surface, the area required by the surface parallelism and the planeness is greatly reduced, the requirement on a mold is reduced, and the production cost is reduced; on the other hand, through the design of this kind of bellied of bottom boss to and arranging of "triangle-shaped", can also be convenient for client enterprise to be connected the location with other subassemblies of camera (like the support), and can promote the stability after the location.
7. In the above scheme, the upper surface of the lower cover is further provided with an anti-rotation bump, and the anti-rotation bump is arranged corresponding to the carrier and used for positioning the carrier.
8. In the above scheme, the lower surface of lower cover still is equipped with a plurality of PIN feet for other subassemblies of electrical coupling camera.
9. In the above scheme, the lower surface of the lower cover is provided with a bottom surface groove around the second through hole, and each bottom boss is arranged in the bottom surface groove.
The working principle and the advantages of the invention are as follows:
compared with the prior art, the invention has the advantages that:
first, the carrier is uniformly distributed in the circumferential direction through at least three stroke control lugs, so that a stable supporting roof can be formed. The area of the supporting ceiling is larger, and the circular arc surface does not need to be processed, so that the control is easier to be carried out during the processing and production of the die compared with the prior art, and the appearance is not easy to be poor; in addition, glue dispensing is not needed in the production process of the voice coil motor, so that the problem of poor gluing is avoided. When the voice coil motor is impacted by external force, the impacted area of the carrier is larger, so that the deformation after impact is smaller, the reliability of the voice coil motor can be effectively improved, and a client can use the voice coil motor more confidently;
through the design of the boss at the bottom in the lower cover, the assembly precision of a customer is not influenced, the assembly yield of the customer can be effectively improved, and the processing cost of a die can be reduced.
Drawings
FIG. 1 is a top view of a prior art carrier;
FIG. 2 is a perspective view of a prior art carrier;
FIG. 3 is a top view of a carrier according to an embodiment of the present invention;
FIG. 4 is a perspective view of a carrier according to an embodiment of the present invention;
FIG. 5 is a perspective view from above of a lower cover in accordance with an embodiment of the present invention;
fig. 6 is a schematic structural view of the lower surface of the embodiment of the present invention.
In the above drawings: 1. a base body; 3. a winding and glue dispensing part; 4. winding a bearing surface; 5. plastic surface; 6. a circular arc surface; 7. a carrier; 8. a first through hole; 9. an upper end surface; 10. a first dispensing slot; 14. a stroke control projection; 15. an outer sidewall; 16. an anti-rotation stop block; 18. a winding post; 21. a lower cover; 22. a second through hole; 23. an upper surface; 24. a positioning column; 25. hot melting the column; 26. a dust ring; 27. a lower surface; 28. a bottom surface groove; 29. a bottom boss; 30. an anti-rotation projection; PIN 32.
Detailed Description
The invention is further described with reference to the following figures and examples:
example (b): referring to fig. 3 to 6, an assembly of a voice coil motor includes a carrier 7 and a lower cover 21 assembled and fitted under the carrier 7; wherein,
a first through hole 8 is formed in the carrier 7 along the up-down direction and used for assembling a lens of a camera;
a plurality of first dispensing grooves 10 are formed in the upper end surface 9 of the carrier 7, each first dispensing groove 10 is concavely formed in the upper end surface 9, and is connected with and positions an upper elastic sheet (not shown) of the voice coil motor through adhesion; the first dispensing grooves 10 are uniformly distributed on the upper end surface 9 along the circumferential direction of the first through hole 8.
Four stroke control lugs 14 are further arranged on the upper end face 9 of the carrier 7, the stroke control lugs 14 are uniformly distributed along the circumferential direction of the first through hole 8 to form a supporting sky surface, and the surface parallelism of the stroke control lugs 14 is consistent; the travel of the carrier in the up-down direction is thereby limited by positioning the yoke of the voice coil motor against it.
Wherein the four stroke control lugs 14 form a stable support ceiling. The area of the supporting ceiling is larger, and the circular arc surface does not need to be processed, so that the control is easier to be carried out during the processing and production of the die compared with the prior art, and the appearance is not easy to be poor; in addition, glue dispensing is not needed in the production process of the voice coil motor, so that the problem of poor gluing is avoided.
A plurality of anti-rotation stoppers 16 are further convexly arranged on the outer side wall 15 of the carrier 7 outwards, each anti-rotation stopper 16 is positioned relative to the yoke, and each anti-rotation stopper 16 is arranged around the carrier 7 along the circumferential direction. Borrow this design, can play further enhancement to the structural strength of carrier 7, better protection carrier 7 when voice coil motor receives external force and assaults makes it not fragile.
The outer side wall 15 of the carrier 7 is convexly provided with a winding post 18, and the winding post 18 is used for positioning the wire end of the voice coil motor coil.
As shown in fig. 5 and 6, a second through hole 22 is formed in the middle of the lower cover 21, and the second through hole 22 is coaxial with the first through hole 8; wherein,
the upper surface 23 of the lower cover 21 is provided with four positioning columns 24, a plurality of hot melting columns 25 and a dust ring 26; each positioning column 24 corresponds to four corners of the upper surface 23 respectively and is used for connecting the yoke iron; each hot melting column 25 is protruded upwards and used for welding and positioning a lower spring plate (not shown in the figure) of the voice coil motor; the dust ring 26 is disposed around the second through hole 22, concentric with the second through hole 22, and plays a role in sealing the carrier 7.
The lower surface 27 of the lower cover 21 surrounds the second through hole 22 and is provided with a bottom surface groove 28, the bottom surface groove 28 is provided with three bottom bosses 29, each bottom boss 29 surrounds the second through hole 22 and is mutually arranged at an angle of 120 degrees, and the connecting line of the three is an equilateral triangle. By the design, on one hand, the surface parallelism and the planeness of the three-bottom boss 29 are only required to be ensured, and compared with the conventional whole bottom groove 28, the area required by the surface parallelism and the planeness is greatly reduced, the requirement on a mold is reduced, and the production cost is reduced; on the other hand, through the design of the bulge of the bottom boss 29 and the arrangement of the triangle, a customer enterprise can conveniently connect and position the voice coil motor and other components (such as a bracket) of the camera, and the stability after positioning can be improved.
The upper surface 23 of the lower cover 21 is further provided with an anti-rotation bump 30, and the anti-rotation bump 30 is arranged corresponding to the carrier 7 and used for positioning the carrier 7. Through the cooperation of preventing changeing lug 30 and preventing changeing dog 16, can better the position of location carrier 7, make carrier 7 possess certain shock resistance, when the voice coil motor suffered external force impact suddenly, carrier 7 still can keep the normal position in the yoke, and the function is not influenced.
The lower surface 27 of the lower cover 21 is also provided with a plurality of PIN feet 32 for electrically coupling with other components of the camera head.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (6)
1. An assembly of a voice coil motor, comprising:
comprises a carrier and a lower cover assembled and matched below the carrier; wherein,
a first through hole is formed in the carrier along the up-down direction and used for assembling a lens of a camera;
the upper end face of the carrier is provided with a plurality of first dispensing grooves, and each first dispensing groove is concavely arranged on the upper end face and is connected with an upper elastic sheet of the positioning voice coil motor through bonding;
the upper end surface of the carrier is also provided with at least three stroke control lugs, the stroke control lugs are uniformly distributed along the circumferential direction of the first through hole to form a supporting sky surface, and the surface parallelism of the stroke control lugs is consistent; limiting the stroke of the carrier in the up-and-down direction by abutting and positioning the yoke of the voice coil motor;
a second through hole is formed in the middle of the lower cover and is coaxial with the first through hole; wherein,
the upper surface of the lower cover is provided with four positioning columns, a plurality of hot melting columns and a dustproof ring; each positioning column corresponds to four corners of the upper surface respectively and is used for connecting and positioning the yoke iron; each hot melting column is arranged in an upward protruding mode and used for welding and positioning a lower elastic sheet of the voice coil motor; the dustproof ring is arranged around the second through hole and is concentric with the second through hole;
the lower surface of lower cover is equipped with three bottom boss, and each bottom boss centers on the second through-hole sets up, and is 120 degrees angles each other and arranges, and the line that constitutes the three is a triangle-shaped.
2. The assembly of claim 1, wherein: each first dispensing groove is uniformly distributed on the upper end face along the circumferential direction of the first through hole.
3. The assembly of claim 1, wherein: the outer side wall of the carrier is convexly provided with a winding post which is used for positioning the wire end of the coil of the voice coil motor.
4. The assembly of claim 1, wherein: the upper surface of the lower cover is also provided with an anti-rotation lug which is arranged corresponding to the carrier and used for positioning the carrier.
5. The assembly of claim 1, wherein: the lower surface of lower cover still is equipped with a plurality of PIN feet for other subassemblies of electrical coupling camera.
6. The assembly of claim 1, wherein: the lower surface of the lower cover is provided with a bottom surface groove around the second through hole, and each bottom boss is arranged in the bottom surface groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260076.6A CN108539958A (en) | 2018-03-27 | 2018-03-27 | A kind of component of voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260076.6A CN108539958A (en) | 2018-03-27 | 2018-03-27 | A kind of component of voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108539958A true CN108539958A (en) | 2018-09-14 |
Family
ID=63485206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810260076.6A Withdrawn CN108539958A (en) | 2018-03-27 | 2018-03-27 | A kind of component of voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108539958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679189A (en) * | 2020-06-23 | 2020-09-18 | 武汉当代华路光电技术有限公司 | VCM motor performance test structure and test method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110022994A (en) * | 2009-08-28 | 2011-03-08 | 엘지이노텍 주식회사 | Voice coil motor and assembly method of the same |
| CN204205902U (en) * | 2014-10-30 | 2015-03-11 | 金龙机电股份有限公司东莞分公司 | A kind of carrier structure of voice coil motor |
| CN107329350A (en) * | 2017-08-23 | 2017-11-07 | 上海比路电子股份有限公司 | A kind of camera gun drive device |
| CN208158403U (en) * | 2018-03-27 | 2018-11-27 | 苏州聚力电机有限公司 | A kind of component of voice coil motor |
-
2018
- 2018-03-27 CN CN201810260076.6A patent/CN108539958A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110022994A (en) * | 2009-08-28 | 2011-03-08 | 엘지이노텍 주식회사 | Voice coil motor and assembly method of the same |
| CN204205902U (en) * | 2014-10-30 | 2015-03-11 | 金龙机电股份有限公司东莞分公司 | A kind of carrier structure of voice coil motor |
| CN107329350A (en) * | 2017-08-23 | 2017-11-07 | 上海比路电子股份有限公司 | A kind of camera gun drive device |
| CN208158403U (en) * | 2018-03-27 | 2018-11-27 | 苏州聚力电机有限公司 | A kind of component of voice coil motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679189A (en) * | 2020-06-23 | 2020-09-18 | 武汉当代华路光电技术有限公司 | VCM motor performance test structure and test 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 | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180914 |