WO2019056198A1 - Anti-rotation vcm structure - Google Patents

Anti-rotation vcm structure Download PDF

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Publication number
WO2019056198A1
WO2019056198A1 PCT/CN2017/102403 CN2017102403W WO2019056198A1 WO 2019056198 A1 WO2019056198 A1 WO 2019056198A1 CN 2017102403 W CN2017102403 W CN 2017102403W WO 2019056198 A1 WO2019056198 A1 WO 2019056198A1
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Prior art keywords
boss
rotation
carrier
wall
outer casing
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PCT/CN2017/102403
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French (fr)
Chinese (zh)
Inventor
饶振奇
赖俊男
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苏州聚力电机有限公司
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Publication of WO2019056198A1 publication Critical patent/WO2019056198A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system

Definitions

  • the invention relates to an anti-rotation VCM structure, belonging to the technical field of voice coil motors.
  • a voice coil motor is a device that converts electrical energy into mechanical energy and achieves linear and limited swing angle motion.
  • the interaction between the magnetic field from the permanent magnet and the magnetic poles in the magnetic field generated by the energized coil conductor produces a means of regular motion.
  • the voice coil motor is a non-commutated power unit, its positioning accuracy is completely dependent on the feedback and control system, independent of the voice coil motor itself. With proper positioning feedback and sensing device, the positioning accuracy can easily reach 10NM and the acceleration can reach 300g.
  • the carrier with the lens is moved and connected in the voice coil motor, when the product is used, the carrier will rotate when it is dropped, and an impact is generated on the voice coil motor, thereby damaging the internal structure and causing the elastic piece to be irreversibly deformed.
  • the accuracy is moved to the carrier, causing the focus to fail.
  • the present invention provides an anti-rotation VCM structure.
  • An anti-rotation VCM structure includes: an outer casing body, a base body, and a carrier, wherein the outer casing top opening is provided with a downwardly bent inner claw, and the inner wall of the outer casing is vertically provided with a stopper;
  • the carrier is arranged in a cylindrical structure, and the outer side wall of the lower side of the carrier is provided with a first boss, and a plurality of second bosses are evenly arranged on the outer side wall of the first boss to the upper opening of the carrier.
  • the top end of the second boss is flush with the opening above the carrier, the bottom end of the second boss is in contact with the top surface of the first boss, and the sidewall of the second boss is provided with a coil retaining wall, the second boss
  • the thickness is matched with the thickness of the inner claw, the inner claw is inserted into the gap between the second bosses, and the coil is sleeved between the coil retaining wall and the top of the first boss;
  • the first boss is provided with a plurality of An anti-rotation block, the two sides of the anti-rotation block cooperate with the block on the inner wall of the outer casing to prevent the carrier from rotating in the outer casing;
  • a set of symmetrically distributed anti-rotation blocks is provided with an outlet groove for the coil lead-in and out a positioning post is disposed on the bottom surface of the first boss, a second elastic piece is fixed on the positioning post; a positioning block is disposed on the top surface of the second protruding block, and the first elastic piece is fixed on the positioning block
  • the inner claw and the second boss are each arranged in four, the inner claws are evenly distributed on the inner wall of the outer casing, and the second protrusion is evenly distributed on the outer wall of the carrier.
  • the anti-rotation block is arranged in four, and the anti-rotation block is evenly distributed on the first boss.
  • the outer casing is made of a metal material.
  • the first elastic piece is made of a copper plate material.
  • the second elastic piece is made of a copper plate material.
  • the anti-rotation VCM structure provided by the present invention effectively realizes the moving snap-fit structure between the outer casing and the carrier through the design of the first boss, the second boss and the inner claw structure.
  • the anti-rotation block is added, and the lateral locking between the outer casing and the carrier is realized, thereby effectively preventing the carrier from rotating.
  • the internal structure of the design is compact, the carrier fixing effect is good, and the deformation of the elastic piece caused by the rotation is effectively prevented.
  • Figure 1 is a schematic cross-sectional view of the present invention
  • Figure 2 is a schematic view of the bottom structure of the carrier.
  • an anti-rotation VCM structure includes: an outer casing 1, a base body 2, and a carrier 3.
  • the outer casing 11 is provided with a downwardly bent inner claw 11 at the top opening.
  • the inner wall of the body 1 is vertically disposed with a stopper 12;
  • the carrier 3 is disposed in a cylindrical structure, and the outer side wall of the carrier 3 is provided with a first first boss 31, and the first boss 31 is on the outer wall of the upper opening of the carrier 3.
  • a plurality of second bosses 32 are evenly disposed, the top ends of the second bosses 32 are flush with the upper opening of the carrier 3, and the bottom end of the second boss 32 is in contact with the top surface of the first boss 31, the second boss
  • the side wall of the 32 is provided with a coil retaining wall 33, the thickness of the second boss 32 is matched with the thickness of the inner claw 11, the inner claw 11 is inserted into the gap between the second bosses 32, and the coil retaining wall 33 is A coil is sleeved between the tops of the first bosses 31.
  • the first bosses 31 are provided with a plurality of anti-rotation blocks 34. The two sides of the anti-rotation block 34 cooperate with the blocks 12 on the inner wall of the outer casing 1.
  • the utility model is arranged for preventing the carrier from rotating in the outer casing; a set of symmetrically distributed anti-rotation blocks 34 is provided with a wire trough 35 for the coil lead-in and out; the bottom surface of the first boss 31 a positioning post 36 is disposed on the positioning post 36, and a second elastic piece is fixed on the positioning post 36.
  • the top surface of the second protruding base 32 is provided with a positioning block 37, and the first elastic piece is fixed on the positioning block 37; Connected to the base body 2.
  • the inner claw 11 and the second boss 32 are each provided in four, and the inner claws 11 are evenly distributed on the inner wall of the outer casing 1, and the second bosses 32 are evenly distributed on the outer wall of the carrier 3.
  • the anti-rotation block 34 is disposed in four, and the anti-rotation block 34 is evenly distributed on the first boss 31.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Vibration Dampers (AREA)
  • Revetment (AREA)

Abstract

Disclosed is an anti-rotation VCM structure, comprising an out casing (1), a base body (2) and a carrier (3), wherein an inner claw (11) bended downward is provided at a top opening of the out casing (1), and a baffle block (12) is perpendicularly arranged on an inner wall of the out casing (1); the carrier (3) is provided as a cylindrical structure, a lower portion of an outer side wall of the carrier (3) is provided with an encircling first boss (31), a plurality of second bosses (32) are arranged on the outer side wall from the first boss (31) to an upper opening of the carrier (3), and side walls of the second bosses (32) are provided with coil blocking walls (33); a plurality of rotation preventing blocks (34) is provided on the first boss (31), and two sides of the rotation preventing blocks (34) match the baffle block (12) on the inner wall of the out casing (1); and the out casing (1) is snap-fitted with the base body (2). The inner structure is compact, and the carrier has a good fixing effect, thereby effectively preventing the deformation of an elastic sheet caused by rotation.

Description

一种防自转的VCM结构Anti-rotation VCM structure 技术领域Technical field
本发明涉及一种防自转的VCM结构，属于音圈电机技术领域。The invention relates to an anti-rotation VCM structure, belonging to the technical field of voice coil motors.
背景技术Background technique
音圈马达是一种将电能转化为机械能的装置，并实现直线型及有限摆角的运动。利用来自永久磁钢的磁场与通电线圈导体产生的磁场中磁极间的相互作用产生有规律的运动的装置。因为音圈马达是一种非换流型动力装置，其定位精度完全取决于反馈及控制***，与音圈马达本身无关。采用合适的定位反馈及感应装置其定位精度可以轻易达到10NM，加速度可达300g。A voice coil motor is a device that converts electrical energy into mechanical energy and achieves linear and limited swing angle motion. The interaction between the magnetic field from the permanent magnet and the magnetic poles in the magnetic field generated by the energized coil conductor produces a means of regular motion. Because the voice coil motor is a non-commutated power unit, its positioning accuracy is completely dependent on the feedback and control system, independent of the voice coil motor itself. With proper positioning feedback and sensing device, the positioning accuracy can easily reach 10NM and the acceleration can reach 300g.
目前，由于安装有镜头的载体在音圈马达内移动连接，在产品使用时，出现跌落时、载体会自转，对音圈马达内产生撞击，从而破坏内部结构，带来弹片不可逆变形，进而影向载体移动精准度，使得对焦失败。At present, since the carrier with the lens is moved and connected in the voice coil motor, when the product is used, the carrier will rotate when it is dropped, and an impact is generated on the voice coil motor, thereby damaging the internal structure and causing the elastic piece to be irreversibly deformed. The accuracy is moved to the carrier, causing the focus to fail.
发明内容Summary of the invention
目的：为了克服现有技术中存在的不足，本发明提供一种防自转的VCM结构。Purpose: To overcome the deficiencies in the prior art, the present invention provides an anti-rotation VCM structure.
技术方案：为解决上述技术问题，本发明采用的技术方案为：Technical Solution: In order to solve the above technical problems, the technical solution adopted by the present invention is:
一种防自转的VCM结构，包括：外壳体、基座体、载体，所述外壳体顶部开口处设置有向下弯折的内爪，所述外壳体内壁上垂直设置有挡块；所述载体设置为圆筒结构，载体下方外侧壁设置有一周第一凸台，第一凸台至载体上方开口处的外侧壁上均匀设有多个第二凸台， 第二凸台顶端与载体上方开口处相齐平，第二凸台底端与第一凸台顶面相接触，所述第二凸台侧壁上设置有线圈挡墙，所述第二凸台厚度与内爪厚度相配合，所述内爪***第二凸台之间的间隙，所述线圈挡墙与第一凸台顶部之间套接有线圈；所述第一凸台上设置有多个防转块，所述防转块两侧与外壳体内壁上挡块相配合，用于防止载体在外壳体内自转；一组对称分布的防转块上设置有出线槽，用于线圈引线出入；所述第一凸台底面上设置有定位柱，所述定位柱上固定有第二弹片；所述第二凸台顶面设置定位块，所述定位块上固定有第一弹片；所述外壳体卡接在基座体上。An anti-rotation VCM structure includes: an outer casing body, a base body, and a carrier, wherein the outer casing top opening is provided with a downwardly bent inner claw, and the inner wall of the outer casing is vertically provided with a stopper; The carrier is arranged in a cylindrical structure, and the outer side wall of the lower side of the carrier is provided with a first boss, and a plurality of second bosses are evenly arranged on the outer side wall of the first boss to the upper opening of the carrier. The top end of the second boss is flush with the opening above the carrier, the bottom end of the second boss is in contact with the top surface of the first boss, and the sidewall of the second boss is provided with a coil retaining wall, the second boss The thickness is matched with the thickness of the inner claw, the inner claw is inserted into the gap between the second bosses, and the coil is sleeved between the coil retaining wall and the top of the first boss; the first boss is provided with a plurality of An anti-rotation block, the two sides of the anti-rotation block cooperate with the block on the inner wall of the outer casing to prevent the carrier from rotating in the outer casing; a set of symmetrically distributed anti-rotation blocks is provided with an outlet groove for the coil lead-in and out a positioning post is disposed on the bottom surface of the first boss, a second elastic piece is fixed on the positioning post; a positioning block is disposed on the top surface of the second protruding block, and the first elastic piece is fixed on the positioning block; The outer casing is snapped onto the base body.
作为优选方案，所述内爪与第二凸台均设置为四个，内爪均匀地分布在外壳体内壁上，第二凸台均匀地分布在载体外壁上。Preferably, the inner claw and the second boss are each arranged in four, the inner claws are evenly distributed on the inner wall of the outer casing, and the second protrusion is evenly distributed on the outer wall of the carrier.
作为优选方案，所述防转块设置为四个，防转块均匀地分布在第一凸台上。Preferably, the anti-rotation block is arranged in four, and the anti-rotation block is evenly distributed on the first boss.
作为优选方案，所述外壳体采用金属材质。Preferably, the outer casing is made of a metal material.
作为优选方案，所述第一弹片采用铜片材质。Preferably, the first elastic piece is made of a copper plate material.
作为优选方案，所述第二弹片采用铜片材质。Preferably, the second elastic piece is made of a copper plate material.
有益效果：本发明提供的一种防自转的VCM结构，通过第一凸台、第二凸台、内爪结构的设计，有效地实现了外壳体与载体之间的移动卡接结构，另外，增加了防转块，实现了外壳体与载体之间横向锁死，有效防止载体自转。本设计内部结构紧凑，载体固定效果好，有效防止自转带来的弹片变形。[Advantageous Effects] The anti-rotation VCM structure provided by the present invention effectively realizes the moving snap-fit structure between the outer casing and the carrier through the design of the first boss, the second boss and the inner claw structure. The anti-rotation block is added, and the lateral locking between the outer casing and the carrier is realized, thereby effectively preventing the carrier from rotating. The internal structure of the design is compact, the carrier fixing effect is good, and the deformation of the elastic piece caused by the rotation is effectively prevented.
附图说明 DRAWINGS
图1为本发明的剖面示意图；Figure 1 is a schematic cross-sectional view of the present invention;
图2为载体底部结构示意图。Figure 2 is a schematic view of the bottom structure of the carrier.
具体实施方式Detailed ways
下面结合附图对本发明作更进一步的说明。The present invention will be further described below in conjunction with the accompanying drawings.
如图1所示，一种防自转的VCM结构，包括：外壳体1、基座体2、载体3，所述外壳体1顶部开口处设置有向下弯折的内爪11，所述外壳体1内壁上垂直设置有挡块12；所述载体3设置为圆筒结构，载体3下方外侧壁设置有一周第一凸台31，第一凸台31至载体3上方开口处的外侧壁上均匀设有多个第二凸台32，第二凸台32顶端与载体3上方开口处相齐平，第二凸台32底端与第一凸台31顶面相接触，所述第二凸台32侧壁上设置有线圈挡墙33，所述第二凸台32厚度与内爪11厚度相配合，所述内爪11***第二凸台32之间的间隙，所述线圈挡墙33与第一凸台31顶部之间套接有线圈；所述第一凸台31上设置有多个防转块34，所述防转块34两侧与外壳体1内壁上挡块12相配合，用于防止载体在外壳体内自转；一组对称分布的防转块34上设置有出线槽35，用于线圈引线出入；所述第一凸台31底面上设置有定位柱36，所述定位柱36上固定有第二弹片；所述第二凸台32顶面设置定位块37，所述定位块37上固定有第一弹片；所述外壳体1卡接在基座体2上。As shown in FIG. 1, an anti-rotation VCM structure includes: an outer casing 1, a base body 2, and a carrier 3. The outer casing 11 is provided with a downwardly bent inner claw 11 at the top opening. The inner wall of the body 1 is vertically disposed with a stopper 12; the carrier 3 is disposed in a cylindrical structure, and the outer side wall of the carrier 3 is provided with a first first boss 31, and the first boss 31 is on the outer wall of the upper opening of the carrier 3. A plurality of second bosses 32 are evenly disposed, the top ends of the second bosses 32 are flush with the upper opening of the carrier 3, and the bottom end of the second boss 32 is in contact with the top surface of the first boss 31, the second boss The side wall of the 32 is provided with a coil retaining wall 33, the thickness of the second boss 32 is matched with the thickness of the inner claw 11, the inner claw 11 is inserted into the gap between the second bosses 32, and the coil retaining wall 33 is A coil is sleeved between the tops of the first bosses 31. The first bosses 31 are provided with a plurality of anti-rotation blocks 34. The two sides of the anti-rotation block 34 cooperate with the blocks 12 on the inner wall of the outer casing 1. The utility model is arranged for preventing the carrier from rotating in the outer casing; a set of symmetrically distributed anti-rotation blocks 34 is provided with a wire trough 35 for the coil lead-in and out; the bottom surface of the first boss 31 a positioning post 36 is disposed on the positioning post 36, and a second elastic piece is fixed on the positioning post 36. The top surface of the second protruding base 32 is provided with a positioning block 37, and the first elastic piece is fixed on the positioning block 37; Connected to the base body 2.
作为优选方案，所述内爪11与第二凸台32均设置为四个，内爪11均匀地分布在外壳体1内壁上，第二凸台32均匀地分布在载体3外壁上。 Preferably, the inner claw 11 and the second boss 32 are each provided in four, and the inner claws 11 are evenly distributed on the inner wall of the outer casing 1, and the second bosses 32 are evenly distributed on the outer wall of the carrier 3.
作为优选方案，所述防转块34设置为四个，防转块34均匀地分布在第一凸台31上。Preferably, the anti-rotation block 34 is disposed in four, and the anti-rotation block 34 is evenly distributed on the first boss 31.
以上所述仅是本发明的优选实施方式，应当指出：对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。 The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims (6)

  1. 一种防自转的VCM结构，包括：外壳体、基座体、载体，其特征在于：所述外壳体顶部开口处设置有向下弯折的内爪，所述外壳体内壁上垂直设置有挡块；所述载体设置为圆筒结构，载体下方外侧壁设置有一周第一凸台，第一凸台至载体上方开口处的外侧壁上均匀设有多个第二凸台，第二凸台顶端与载体上方开口处相齐平，第二凸台底端与第一凸台顶面相接触，所述第二凸台侧壁上设置有线圈挡墙，所述第二凸台厚度与内爪厚度相配合，所述内爪***第二凸台之间的间隙，所述线圈挡墙与第一凸台顶部之间套接有线圈；所述第一凸台上设置有多个防转块，所述防转块两侧与外壳体内壁上挡块相配合，用于防止载体在外壳体内自转；一组对称分布的防转块上设置有出线槽，用于线圈引线出入；所述第一凸台底面上设置有定位柱，所述定位柱上固定有第二弹片；所述第二凸台顶面设置定位块，所述定位块上固定有第一弹片；所述外壳体卡接在基座体上。An anti-rotation VCM structure includes: an outer casing body, a base body, and a carrier, wherein: the outer casing top opening is provided with a downwardly bent inner claw, and the inner wall of the outer casing is vertically provided with a block The carrier is disposed in a cylindrical structure, and the outer side wall of the carrier is provided with a first boss at a time, and the first boss is uniformly provided with a plurality of second bosses on the outer side wall at the opening above the carrier, and the second boss The top end is flush with the upper opening of the carrier, the bottom end of the second boss is in contact with the top surface of the first boss, the side wall of the second boss is provided with a coil retaining wall, and the thickness of the second boss and the inner claw The inner claw is inserted into the gap between the second bosses, and the coil is sleeved between the coil retaining wall and the top of the first boss; the first boss is provided with a plurality of anti-rotation blocks The two sides of the anti-rotation block cooperate with the block on the inner wall of the outer casing to prevent the carrier from rotating in the outer casing; a set of symmetrically distributed anti-rotation blocks is provided with an outlet groove for the coil lead-in and out; a positioning post is disposed on a bottom surface of a boss, and the positioning post is fixed with a Shrapnel; the second boss top surface of the positioning block is provided, the positioning block fixed to a first shrapnel; snap said outer housing on the base body.
  2. 根据权利要求1所述的一种防自转的VCM结构，其特征在于：所述内爪与第二凸台均设置为四个，内爪均匀地分布在外壳体内壁上，第二凸台均匀地分布在载体外壁上。The anti-rotation VCM structure according to claim 1, wherein the inner claw and the second boss are each provided in four, the inner claws are evenly distributed on the inner wall of the outer casing, and the second boss is evenly distributed. The ground is distributed on the outer wall of the carrier.
  3. 根据权利要求1所述的一种防自转的VCM结构，其特征在于：所述防转块设置为四个，防转块均匀地分布在第一凸台上。The anti-rotation VCM structure according to claim 1, wherein the anti-rotation block is arranged in four, and the anti-rotation block is evenly distributed on the first boss.
  4. 根据权利要求1所述的一种防自转的VCM结构，其特征在于：所述外壳体采用金属材质。The anti-rotation VCM structure according to claim 1, wherein the outer casing is made of a metal material.
  5. 根据权利要求1所述的一种防自转的VCM结构，其特征在于：所述第一弹片采用铜片材质。 The anti-rotation VCM structure according to claim 1, wherein the first elastic piece is made of a copper plate material.
  6. 根据权利要求1所述的一种防自转的VCM结构，其特征在于：所述第二弹片采用铜片材质。 The anti-rotation VCM structure according to claim 1, wherein the second elastic piece is made of a copper plate material.
PCT/CN2017/102403 2017-09-19 2017-09-20 Anti-rotation vcm structure WO2019056198A1 (en)

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CN201710847456.5A CN107482821A (en) 2017-09-19 2017-09-19 A kind of VCM structures of anti-rotation
CN201710847456.5 2017-09-19

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CN109975943B (en) * 2019-03-12 2024-02-02 惠州萨至德光电科技有限公司 Low magnetic interference lens driving device and double-camera motor

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