WO2023231101A1 - 一种镜头模组及电子设备 - Google Patents

一种镜头模组及电子设备 Download PDF

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Publication number
WO2023231101A1
WO2023231101A1 PCT/CN2022/101424 CN2022101424W WO2023231101A1 WO 2023231101 A1 WO2023231101 A1 WO 2023231101A1 CN 2022101424 W CN2022101424 W CN 2022101424W WO 2023231101 A1 WO2023231101 A1 WO 2023231101A1
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WO
WIPO (PCT)
Prior art keywords
rod
adapter
lens
focusing
side wall
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Application number
PCT/CN2022/101424
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English (en)
French (fr)
Inventor
阚立峰
陶淑林
张�杰
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歌尔光学科技有限公司
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Application filed by 歌尔光学科技有限公司 filed Critical 歌尔光学科技有限公司
Publication of WO2023231101A1 publication Critical patent/WO2023231101A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects

Definitions

  • the present application relates to the technical field of optical equipment, and more specifically, to a lens module and electronic equipment.
  • DLP digital light processing
  • One purpose of this application is to provide a new technology solution for lens modules and electronic equipment.
  • a lens module including a lens body and a focusing mechanism.
  • the focusing mechanism is connected to the lens body and can drive the lens body to move in a first direction;
  • the focusing mechanism includes:
  • the motor includes a motor body and a power output shaft connected to the motor body, the axial direction of the power output shaft is arranged along the first direction, and the power output shaft is provided with a threaded portion;
  • the adapter rod includes an adapter rod body, a threaded hole is provided on the adapter rod body, and the power output shaft is threadedly connected to the threaded hole; the power output shaft rotates and drives the The transfer rod moves in translation along the first direction;
  • Focusing rod one end of the focusing rod is connected to the adapter rod, and the other end of the focusing rod is connected to the lens body; the focusing rod drives the lens body to follow the adapter rod Translational movement in the first direction.
  • the adapter rod body is provided with an adapter hole, and one end of the focusing rod is connected to the adapter hole;
  • the focusing rod and the transfer hole are connected with an interference fit and/or the focusing rod and the transfer hole are connected through an adhesive.
  • the focusing mechanism further includes a support base, and the motor body is fixed on the support base;
  • the lens module includes a module housing, the lens body is arranged in the module housing, and the support base is connected to the module housing.
  • the support base includes a bracket and a base connected to each other, the motor body is fixed on the bracket, and the base is connected to the module housing.
  • the bracket includes a bracket body, and the motor body is fixed on the bracket body;
  • a screw hole is provided on the bracket body, and the power output shaft is connected to the screw hole.
  • the bracket body has a bottom wall, a first side wall and a second side wall, the first side wall and the second side wall are both connected to the bottom wall, and the first side wall Arranged opposite to the second side wall; the adapter rod is located between the first side wall and the second side wall.
  • screw holes there are two screw holes, one of which is opened in the first side wall and the other of which is opened in the second side wall.
  • the focusing mechanism further includes a circuit board, the circuit board includes a circuit board body, a first pin is provided on the circuit board body, a second pin is provided on the motor body, and the third pin is provided on the circuit board body. One pin is connected to the second pin.
  • a photoelectric coupler is provided on the circuit board body, and the photoelectric coupler has a light detection area; the transfer rod also includes a stopper, and the stopper is connected to the transfer rod body; The blocking block is located in the light detection area.
  • the focusing mechanism further includes a guide rod, the axial direction of the guide rod is arranged along the first direction, the adapter rod body is provided with a first guide hole, and the guide rod is connected to the first guide rod.
  • the first guide hole connection is not limited to.
  • a connecting shaft is provided in the module housing along the first direction, and the lens body is connected to the connecting shaft.
  • an electronic device includes the lens module as described in the first aspect.
  • the focusing speed can be more accurately controlled by the pitch size of the threaded portion provided on the power output shaft and the frequency of controlling the rotation of the motor, so that the lens body can achieve a more accurate Focusing accuracy improves user experience.
  • Figure 1 shows a schematic structural diagram of a lens module according to an embodiment of the present application
  • Figure 2 shows a partial structural diagram of a lens module according to an embodiment of the present application
  • Figure 3 shows a schematic structural diagram of a focusing mechanism in a lens module according to an embodiment of the present application
  • Figure 4 shows a second structural schematic diagram of the focusing mechanism in a lens module according to an embodiment of the present application
  • Figure 5 shows a schematic structural diagram three of the focusing mechanism in a lens module according to an embodiment of the present application
  • Figure 6 shows a schematic structural diagram of an adapter rod in a lens module according to an embodiment of the present application
  • Figure 7 shows a schematic structural diagram of a circuit board in a lens module according to an embodiment of the present application
  • Figure 8 shows a schematic structural diagram of a bracket in a lens module according to an embodiment of the present application.
  • Figure 9a shows a schematic structural diagram of a base in a lens module according to an embodiment of the present application.
  • Figure 9b shows the second structural schematic diagram of a base in a lens module according to an embodiment of the present application.
  • any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values.
  • a lens module is provided.
  • the lens module includes a lens body 1 and a focusing mechanism 2.
  • the focusing mechanism 2 and the lens The body 1 is connected to and can drive the lens body 1 to move in the first direction;
  • the focusing mechanism 2 includes a motor 21, an adapter rod 22 and a focusing rod 23.
  • the motor 21 includes a motor body 210 and a motor body 210.
  • the connected power output shaft 211 has an axial direction along the first direction, and a threaded portion is provided on the power output shaft 211;
  • the adapter rod 22 includes an adapter rod body 221.
  • the adapter rod body 221 is provided with a threaded hole 222.
  • the power output shaft 211 is threadedly connected to the threaded hole 222; the power output shaft 211 rotates and Driving the adapter rod 22 to move in translation along the first direction;
  • One end of the focusing rod 23 is connected to the adapter rod 22, and the other end of the focusing rod 23 is connected to the lens body 1; the focusing rod 23 drives the lens body 1 to follow the rotation.
  • the connecting rod 22 moves in translation along the first direction.
  • the motor 21 when the lens body 1 needs to be focused, the motor 21 is turned on, and the power output shaft 211 of the motor 21 rotates. Due to the threads opened on the power output shaft 211 and the adapter rod 22 The holes 222 are connected through threaded fits, so the rotation of the power output shaft 211 in the threaded hole 222 is converted into a translational movement of the adapter rod 22, and the adapter rod 22 is driven to translate along the axial direction of the power output shaft 211, that is, the first direction. sports.
  • the adapter rod 22 performs translational movement along the first direction and drives the focus rod 23 to move along the first direction.
  • the focusing rod 23 further drives the lens body 1 to perform translational movement along the first direction, thereby achieving the purpose of adjusting the focus of the lens body 1 .
  • the focusing speed can be controlled more accurately through the pitch size of the threaded portion provided on the power output shaft 211 and the frequency of rotation of the control motor 21, so that the lens body 1 can achieve Relatively precise focusing accuracy improves user experience.
  • the focus of the lens body 1 is achieved through the threaded cooperation between the power output shaft 211 of the motor 21 and the adapter rod 22, and the connection and cooperation between the adapter rod 22 and the focusing rod 23.
  • Purpose; its transmission matching structure is relatively simple, easy to install, and the accumulation of installation tolerances is small.
  • the axial gap should be minimized as much as possible. gap.
  • the tooth profile of the threaded portion on the power output shaft 211 and the threaded hole 222 can be modified, for example, to make the tooth profile as deep as possible, thereby minimizing the gap between the power output shaft 211 and the threaded hole 222. axial clearance between them.
  • the adapter rod body 221 is provided with an adapter hole 223, and one end of the focus lever 23 is connected to the adapter hole 223; and the focus lever 23 is connected to the adapter hole 223.
  • the adapter hole 223 is connected with an interference fit and/or the focusing rod 23 and the adapter hole 223 are connected through an adhesive.
  • the specific connection method between the focusing rod 23 and the adapter rod 22 is that the focus rod 23 is connected to the adapter hole 223 opened on the adapter rod body 221; and, the focus rod 23 and the adapter rod 22 are connected to each other.
  • the holes 223 are tightly connected by interference fit, or the focusing rod 23 and the adapter hole 223 are tightly connected by glue dispensing, or the focusing rod 23 and the adapter hole 223 are firmly connected.
  • Glue is further dispensed based on the interference fit to ensure the tightness of the connection between the two.
  • the assembly fit gap between the focusing rod 23 and the adapter hole 223 is eliminated as much as possible, thereby further improving the focusing accuracy of the lens body 1 .
  • the focusing mechanism 2 further includes a support base, and the motor body 210 is fixed on the support base;
  • the lens module includes a module housing 3 , the lens body 1 is disposed in the module housing 3 , and the support base is connected to the module housing 3 .
  • the support base is not only used to fix the motor 21, but also to connect the entire focusing mechanism 2 with the module housing 3 where the lens body 1 is located, so as to achieve the function of connecting and supporting the components.
  • the support base includes a bracket 26 and a base 27 that are connected to each other.
  • the motor body 210 is fixed on the bracket 26, and the base 27 is connected to the bracket 26.
  • the module shell 3 is connected.
  • the support base specifically includes a bracket 26 and a base 27 that are connected to each other.
  • the motor 21 is connected to the bracket 26 , and the base 27 is responsible for connecting with the module housing 3 . Further, the base 27 and the module housing 3 are connected through fasteners such as screws, or through adhesives such as glue.
  • the bracket 26 includes a bracket body 261, and the motor body 210 is fixed on the bracket body 261;
  • the bracket body 261 is provided with a screw hole 262, and the power output shaft 211 is connected to the screw hole 262.
  • the motor body 210 of the motor 21 is welded to the bracket body 261, and the power output shaft 211 of the motor 21 passes through the screw hole 262 opened on the bracket body 261; thus, the motor 21 is installed While tightening, the rotation of the power output shaft 211 is not affected.
  • the bracket body 261 has a bottom wall 2611 , a first side wall 2612 and a second side wall 2613 .
  • the first side wall 2612 and the second side wall The walls 2613 are all connected to the bottom wall 2611, and the first side wall 2612 and the second side wall 2613 are arranged oppositely; the adapter rod 22 is located between the first side wall 2612 and the second side wall 2613. between walls.
  • the motor body 210 is welded to the side of the first side wall 2612 away from the second side wall 2613; the power output shaft 211 passes through the screw hole 262 and the adapter rod 22 provided on the first side wall 2612 in sequence.
  • the threaded hole 222 opened on the second side wall 2613 and the screw hole 262 provided on the second side wall 2613; and, as shown in Figure 5, a bearing 28 is connected to the end of the power output shaft 211 away from the motor body 210, and the bearing 28 abuts on the second
  • the side wall 2613 is away from the first side wall 2612; thereby ensuring the stability of the rotation of the power output shaft 211.
  • the adapter rod 22 is located between the first side wall 2612 and the second side wall 2613, that is, the adapter rod 22 performs translational movement between the first side wall 2612 and the second side wall 2613; the first side wall 2612 and the second side wall 2613
  • the side wall 2613 not only plays a role in fixed installation of the motor 21 and the bearing 28, but also plays a role in limiting the translational movement of the adapter rod 22.
  • the focusing mechanism 2 further includes a circuit board 24.
  • the circuit board 24 includes a circuit board body 241.
  • the circuit board body 241 is provided with a third A pin 242
  • the motor body 210 is provided with a second pin 212
  • the first pin 242 is connected to the second pin 212.
  • first pin 242 and the second pin 212 are connected to realize the electrical connection between the motor 21 and the circuit board 24 .
  • the circuit board 24 is also connected to the base 27; specifically, the base 27 has a bottom plate 271.
  • the bottom plate 271 includes two surfaces arranged oppositely, one of which is provided with a first positioning post 272 and a first screw hole. 273; The other surface is provided with a second positioning post 274 and a second screw hole 275.
  • a first positioning hole 264 and a third screw hole 265 are provided on the bottom wall 2611 of the bracket 26.
  • the first positioning post 272 is cooperatively connected with the first positioning hole 264, and the first screw hole 273 and the third screw hole 265 are screwed together. connect.
  • the circuit board body 241 is provided with a second positioning hole 244 and a fourth screw hole 245.
  • the second positioning post 274 is cooperatively connected with the second positioning hole 244, and the second screw hole 275 and the fourth screw hole 245 are cooperatively connected with screws.
  • a photoelectric coupler 243 is provided on the circuit board body 241, and the photoelectric coupler 243 has a light detection area; the adapter rod 22 also It includes a stopper 224, which is connected to the adapter rod body 221; the stopper 224 is located in the light detection area.
  • the block 224 moves in translation in the light detection area of the photocoupler 243, so that the position of the motor 21 can be fed back through the light blocking amount of the block 224. information to achieve precise control of the start and stop actions of the motor 21.
  • the focusing mechanism 2 further includes a guide rod 25 , the axial direction of the guide rod 25 is arranged along the first direction, and the adapter rod body 221 is provided with a guide rod 25 .
  • the first guide hole 225 is connected with the guide rod 25 .
  • the arrangement of the guide rod 25 can guide the translational movement of the adapter rod 22, thereby ensuring that the adapter rod 22 will only perform translational movement along the first direction without deflection. motion or rotational motion.
  • the bracket body 261 is provided with a second guide hole 263; the guide rod 25 is connected to the second guide hole 263. Moreover, there are two second guide holes 263 , one of which is opened in the first side wall 2612 and the other second guide hole 263 is opened in the second side wall. 2613. That is, both ends of the guide rod 25 are connected to the two second guide holes 263 respectively, and the guide rod 25 passes through the first guide holes 225 .
  • a connecting shaft 4 is provided in the module housing 3 along the first direction, and the lens body 1 is connected to the connecting shaft 4 .
  • the arrangement of the connecting shaft 4 can guide the translational movement of the lens body 1 along the first direction. Furthermore, two connecting shafts 4 are provided, and the two connecting shafts 4 are respectively located on both sides of the lens body 1 .
  • an electronic device is provided, and the electronic device includes the lens module as described above.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lens Barrels (AREA)

Abstract

一种镜头模组及电子设备，该镜头模组包括镜头本体（1）及调焦机构（2），调焦机构（2）与镜头本体（1）连接并可驱动镜头本体（1）沿第一方向移动；调焦机构（2）包括马达（21）、转接杆（22）及调焦杆（23），马达（21）包括马达本体及与马达本体连接的动力输出轴（211），动力输出轴（211）的轴向沿第一方向设置，动力输出轴（211）上设置有螺纹部；转接杆（22）包括转接杆本体（221），转接杆本体（221）上开设有螺纹孔（222），动力输出轴（211）与螺纹孔（222）螺纹连接；动力输出轴（211）转动并驱动转接杆（22）沿第一方向平移运动；调焦杆（23）的一端与转接杆（22）连接，调焦杆（23）的另一端与镜头本体（1）连接；调焦杆（23）带动镜头本体（1）跟随转接杆（22）沿第一方向平移运动。

Description

一种镜头模组及电子设备 技术领域
本申请涉及光学设备技术领域，更具体地，涉及一种镜头模组及电子设备。
背景技术
现如今，随着科学技术的蓬勃发展，投影技术已日趋成熟，投影设备的应用领域也变得愈来愈广，例如应用于会议讲解、巡回展示和促销活动等商业领域，应用于学校授课、学术讨论等教育领域，以及应用于家庭影院等家庭领域。近年来，数字光处理(DigitalLightProcessing；DLP)投影仪已经成为目前投影仪的主流技术，其在轻巧性、耐用度、高亮度、高对比等方面都是投影显示产品中的较佳选择。
在数字光处理投影设备中，对镜头焦距的调节非常重要；如果调焦精度不高则会导致无法达到预期的调焦效果，从而给整机调试以及用户的使用体验带来不利影响。因此，如何改进镜头的调焦机构以提高调焦精度成为业内关注的重点课题之一。
发明内容
本申请的一个目的是提供一种镜头模组及电子设备的新技术方案。
根据本申请的第一方面，提供了一种镜头模组，包括镜头本体及调焦机构，所述调焦机构与所述镜头本体连接并可驱动所述镜头本体沿第一方向移动；所述调焦机构包括：
马达，所述马达包括马达本体及与马达本体连接的动力输出轴，所述 动力输出轴的轴向沿所述第一方向设置，所述动力输出轴上设置有螺纹部；
转接杆，所述转接杆包括转接杆本体，所述转接杆本体上开设有螺纹孔，所述动力输出轴与所述螺纹孔螺纹连接；所述动力输出轴转动并驱动所述转接杆沿所述第一方向平移运动；
调焦杆，所述调焦杆的一端与所述转接杆连接，所述调焦杆的另一端与所述镜头本体连接；所述调焦杆带动所述镜头本体跟随所述转接杆沿所述第一方向平移运动。
可选地，所述转接杆本体上开设有转接孔，所述调焦杆的一端与所述转接孔连接；
所述调焦杆与所述转接孔过盈配合连接和/或所述调焦杆与所述转接孔通过粘接剂连接。
可选地，所述调焦机构还包括支撑座，所述马达本体固定在所述支撑座上；
所述镜头模组包括模组壳体，所述镜头本体设置于所述模组壳体内，所述支撑座与所述模组壳体连接。
可选地，所述支撑座包括相互连接的支架及基座，所述马达本体固定在所述支架上，所述基座与所述模组壳体连接。
可选地，所述支架包括支架本体，所述马达本体固定在所述支架本体上；
所述支架本体上开设有螺杆孔，所述动力输出轴与所述螺杆孔连接。
可选地，所述支架本体具有底壁、第一侧壁及第二侧壁，所述第一侧壁及所述第二侧壁均与所述底壁连接，且所述第一侧壁与所述第二侧壁相对设置；所述转接杆位于所述第一侧壁与所述第二侧壁之间。
可选地，所述螺杆孔设置有两个，其中一个所述螺杆孔开设于所述第一侧壁、另一个所述螺杆孔开设于所述第二侧壁。
可选地，所述调焦机构还包括电路板，所述电路板包括电路板本体， 所述电路板本体上设置有第一引脚，所述马达本体设置有第二引脚，所述第一引脚与所述第二引脚连接。
可选地，所述电路板本体上设置有光电耦合器，所述光电耦合器具有光检测区域；所述转接杆还包括挡块，所述挡块与所述转接杆本体连接；所述挡块位于所述光检测区域。
可选地，所述调焦机构还包括导向杆，所述导向杆的轴向沿所述第一方向设置，所述转接杆本体上开设有第一导向孔，所述导向杆与所述第一导向孔连接。
可选地，所述模组壳体内沿所述第一方向设置有连接轴，所述镜头本体与所述连接轴连接。
根据本申请的第二方面，提供了一种电子设备，所述电子设备包括如第一方面所述的镜头模组。
在本申请实施例提供的镜头模组中，可以通过动力输出轴上设置的螺纹部的螺距尺寸以及控制马达转动的频率来对调焦速度进行较为精确的控制，从而使镜头本体达到较为精确的调焦精度，提高用户的使用体验。
通过以下参照附图对本申请的示例性实施例的详细描述，本申请的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本申请的实施例，并且连同其说明一起用于解释本申请的原理。
图1所示为本申请实施例一种镜头模组的结构示意图；
图2所示为本申请实施例一种镜头模组的部分结构示意图；
图3所示为本申请实施例一种镜头模组中调焦机构的结构示意图一；
图4所示为本申请实施例一种镜头模组中调焦机构的结构示意图二；
图5所示为本申请实施例一种镜头模组中调焦机构的结构示意图三；
图6所示为本申请实施例一种镜头模组中转接杆的结构示意图；
图7所示为本申请实施例一种镜头模组中电路板的结构示意图；
图8所示为本申请实施例一种镜头模组中支架的结构示意图；
图9a所示为本申请实施例一种镜头模组中基座的结构示意图一；
图9b所示为本申请实施例一种镜头模组中基座的结构示意图二。
附图标记说明：
1、镜头本体；2、调焦机构；21、马达；210、马达本体；211、动力输出轴；212、第二引脚；22、转接杆；221、转接杆本体；222、螺纹孔；223、转接孔；224、挡块；225、第一导向孔；23、调焦杆；24、电路板；241、电路板本体；242、第一引脚；243、光电耦合器；244、第二定位孔；245、第四螺丝孔；25、导向杆；26、支架；261、支架本体；2611、底壁；2612、第一侧壁；2613、第二侧壁；262、螺杆孔；263、第二导向孔；264、第一定位孔；265、第三螺丝孔；27、基座；271、底板；272、第一定位柱；273、第一螺丝孔；274、第二定位柱；275、第二螺丝孔；28、轴承；3、模组壳体；4、连接轴。
具体实施方式
现在将参照附图来详细描述本申请的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例 性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
参考图1-图9b所示，根据本申请的一个实施例，提供了一种镜头模组，所述镜头模组包括镜头本体1及调焦机构2，所述调焦机构2与所述镜头本体1连接并可驱动所述镜头本体1沿第一方向移动；所述调焦机构2包括马达21、转接杆22及调焦杆23，所述马达21包括马达本体210及与马达本体210连接的动力输出轴211，所述动力输出轴211的轴向沿所述第一方向设置，所述动力输出轴211上设置有螺纹部；
所述转接杆22包括转接杆本体221，所述转接杆本体221上开设有螺纹孔222，所述动力输出轴211与所述螺纹孔222螺纹连接；所述动力输出轴211转动并驱动所述转接杆22沿所述第一方向平移运动；
所述调焦杆23的一端与所述转接杆22连接，所述调焦杆23的另一端与所述镜头本体1连接；所述调焦杆23带动所述镜头本体1跟随所述转接杆22沿所述第一方向平移运动。
在本申请实施例提供的镜头模组中，当需要对镜头本体1进行调焦时，开启马达21，马达21的动力输出轴211转动，由于动力输出轴211与转接杆22上开设的螺纹孔222通过螺纹配合连接，因此动力输出轴211在螺纹孔222内的转动转化为转接杆22的平移运动，驱动转接杆22沿动力输出轴211的轴向方向，即第一方向进行平移运动。与此同时，由于调焦杆23的一端与转接杆22连接、另一端与镜头本体1连接；因此，转接杆22沿第一方向进行平移运动并带动调焦杆23沿第一方向进行平移运动，调焦杆23进而带动镜头本体1沿第一方向进行平移运动，从而达到对镜头本体1调焦的目的。
在本申请实施例提供的镜头模组中，可以通过动力输出轴211上设置的螺纹部的螺距尺寸以及控制马达21转动的频率来对调焦速度进行较为精确的控制，从而使镜头本体1达到较为精确的调焦精度，提高用户的使用体验。
在本申请实施例提供的镜头模组中，通过马达21的动力输出轴211与转接杆22的螺纹配合，以及转接杆22与调焦杆23的连接配合达到对镜头本体1进行调焦的目的；其传动配合的结构比较简单、安装方便且安装的公差累积较小。
进一步地，动力输出轴211与转接杆22的螺纹孔222之间不可避免地会存在轴向间隙，该轴向间隙越大则调焦准确度越低，因此，应该尽量减小该轴向间隙。在实际应用中，可以通过修整动力输出轴211上螺纹部的牙型，以及螺纹孔222的牙型，例如尽可能让牙型比较深，从而尽可能减小动力输出轴211与螺纹孔222之间的轴向间隙。当然，上述减小轴向间隙的同时，还需要确保转接杆22输出给调焦杆23的作用力合适。
在一个实施例中，进一步地，所述转接杆本体221上开设有转接孔223，所述调焦杆23的一端与所述转接孔223连接；且所述调焦杆23与所述转接孔223过盈配合连接和/或所述调焦杆23与所述转接孔223通过粘接剂连接。
在该具体的例子中，调焦杆23与转接杆22的具体连接方式为调焦杆23与转接杆本体221上开设的转接孔223进行连接；并且，调焦杆23与转接孔223之间通过过盈配合的方式实现紧固连接，或者，调焦杆23与转接孔223之间通过点胶的方式实现紧固连接，或者，调焦杆23与转接孔223之间在过盈配合的基础上进一步进行点胶，以确保二者连接的紧固性。由此，调焦杆23与转接孔223之间组装的配合间隙被尽可能地消除掉，从而进一步提高了镜头本体1的调焦精度。
在一个实施例中，所述调焦机构2还包括支撑座，所述马达本体210 固定在所述支撑座上；
所述镜头模组包括模组壳体3，所述镜头本体1设置于所述模组壳体3内，所述支撑座与所述模组壳体3连接。
在该具体的例子中，支撑座不仅用来固定马达21，并且将整个调焦机构2与镜头本体1所在的模组壳体3进行连接，以达到部件之间连接支撑的作用。
参考图3所示，在一个实施例中，进一步地，所述支撑座包括相互连接的支架26及基座27，所述马达本体210固定在所述支架26上，所述基座27与所述模组壳体3连接。
在该具体的例子中，支撑座具体包括相互连接的支架26及基座27，其中，马达21连接在支架26上，而基座27负责与模组壳体3连接。进一步地，基座27与模组壳体3通过螺钉等紧固件进行连接，或者通过胶水等粘接剂进行连接。
参考图4、图8所示，在一个实施例中，进一步地，所述支架26包括支架本体261，所述马达本体210固定在所述支架本体261上；
所述支架本体261上开设有螺杆孔262，所述动力输出轴211与所述螺杆孔262连接。
在该具体的例子中，进一步地，马达21的马达本体210焊接在支架本体261上，而马达21的动力输出轴211则穿过支架本体261上开设的螺杆孔262；从而在将马达21安装紧固的同时，不影响动力输出轴211的转动。
参考图8所示，在一个实施例中，进一步地，所述支架本体261具有底壁2611、第一侧壁2612及第二侧壁2613，所述第一侧壁2612及所述第二侧壁2613均与所述底壁2611连接，且所述第一侧壁2612与所述第二侧壁2613相对设置；所述转接杆22位于所述第一侧壁2612与所述第二侧壁2613之间。进一步地，所述螺杆孔262设置有两个，其中一个所述螺杆孔262开设于所述第一侧壁2612、另一个所述螺杆孔262开设于所述第二侧 壁2613。
在该具体的例子中，马达本体210焊接在第一侧壁2612背离第二侧壁2613的侧面处；动力输出轴211依次穿过第一侧壁2612上设置的螺杆孔262、转接杆22上开设的螺纹孔222以及第二侧壁2613上设置的螺杆孔262；并且，参照图5所示，在动力输出轴211远离马达本体210的末端连接有轴承28，轴承28抵接在第二侧壁2613背离第一侧壁2612的侧面处；由此，确保动力输出轴211转动的稳定性。
转接杆22位于第一侧壁2612与第二侧壁2613之间，即转接杆22在第一侧壁2612与第二侧壁2613之间进行平移运动；第一侧壁2612和第二侧壁2613不仅起到了对马达21及轴承28进行固定安装的作用，并且对转接杆22的平移运动起到了限位的作用。
参考图3、图4、7所示，在一个实施例中，所述调焦机构2还包括电路板24，所述电路板24包括电路板本体241，所述电路板本体241上设置有第一引脚242，所述马达本体210设置有第二引脚212，所述第一引脚242与所述第二引脚212连接。
在该具体的例子中，第一引脚242与第二引脚212进行连接以实现马达21与电路板24的电连接。
进一步地，电路板24还与基座27连接；具体地，基座27具有底板271，底板271包括相背设置的两个表面，其中一个表面上设置有第一定位柱272及第一螺丝孔273；另一个表面上设置有第二定位柱274及第二螺丝孔275。在支架26的底壁2611上开设有第一定位孔264及第三螺丝孔265，第一定位柱272与第一定位孔264配合连接，第一螺丝孔273与第三螺丝孔265通过螺钉配合连接。在电路板本体241上开设有第二定位孔244及第四螺丝孔245，第二定位柱274与第二定位孔244配合连接，第二螺丝孔275与第四螺丝孔245通过螺钉配合连接。
参考图4、图7所示，在一个实施例中，进一步地，所述电路板本体 241上设置有光电耦合器243，所述光电耦合器243具有光检测区域；所述转接杆22还包括挡块224，所述挡块224与所述转接杆本体221连接；所述挡块224位于所述光检测区域。
在该具体的例子中，在马达21带动转接杆22平移运动的同时，挡块224在光电耦合器243的光检测区域进行平移运动，从而可以通过挡块224的遮光量反馈马达21的位置信息，实现对马达21启停动作的精确控制。
参考图5所示，在一个实施例中，所述调焦机构2还包括导向杆25，所述导向杆25的轴向沿所述第一方向设置，所述转接杆本体221上开设有第一导向孔225，所述导向杆25与所述第一导向孔225连接。
在该具体的例子中，导向杆25的设置可以对转接杆22的平移运动起到导向的作用，从而确保转接杆22只会沿着第一方向进行平移运动，而不会发生偏斜运动或者旋转运动。
进一步地，所述支架本体261上开设有第二导向孔263；所述导向杆25与所述第二导向孔263连接。并且，所述第二导向孔263设置有两个，其中一个所述第二导向孔263开设于所述第一侧壁2612、另一个所述第二导向孔263开设于所述第二侧壁2613。即导向杆25的两端分别连接在两个第二导向孔263内，并且导向杆25穿过第一导向孔225。
参考图1所示，在一个实施例中，进一步地，所述模组壳体3内沿所述第一方向设置有连接轴4，所述镜头本体1与所述连接轴4连接。
在该具体的例子中，连接轴4的设置可以为镜头本体1沿第一方向的平移运动起到导向的作用。进一步地，连接轴4设置有两个，两个连接轴4分别位于镜头本体1的两侧。
根据本申请的另一个实施例，提供了一种电子设备，所述电子设备包括如上所述的镜头模组。
虽然已经通过例子对本申请的一些特定实施例进行了详细说明，但是 本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本申请的范围。本领域的技术人员应该理解，可在不脱离本申请的范围和精神的情况下，对以上实施例进行修改。本申请的范围由所附权利要求来限定。

Claims (12)

  1. 一种镜头模组，其特征在于，包括镜头本体(1)及调焦机构(2)，所述调焦机构(2)与所述镜头本体(1)连接并可驱动所述镜头本体(1)沿第一方向移动；所述调焦机构(2)包括：
    马达(21)，所述马达(21)包括马达本体(210)及与马达本体(210)连接的动力输出轴(211)，所述动力输出轴(211)的轴向沿所述第一方向设置，所述动力输出轴(211)上设置有螺纹部；
    转接杆(22)，所述转接杆(22)包括转接杆本体(221)，所述转接杆本体(221)上开设有螺纹孔(222)，所述动力输出轴(211)与所述螺纹孔(222)螺纹连接；所述动力输出轴(211)转动并驱动所述转接杆(22)沿所述第一方向平移运动；
    调焦杆(23)，所述调焦杆(23)的一端与所述转接杆(22)连接，所述调焦杆(23)的另一端与所述镜头本体(1)连接；所述调焦杆(23)带动所述镜头本体(1)跟随所述转接杆(22)沿所述第一方向平移运动。
  2. 根据权利要求1所述的镜头模组，其特征在于，所述转接杆本体(221)上开设有转接孔(223)，所述调焦杆(23)的一端与所述转接孔(223)连接；
    所述调焦杆(23)与所述转接孔(223)过盈配合连接和/或所述调焦杆(23)与所述转接孔(223)通过粘接剂连接。
  3. 根据权利要求1所述的镜头模组，其特征在于，所述调焦机构(2)还包括支撑座，所述马达本体(210)固定在所述支撑座上；
    所述镜头模组包括模组壳体(3)，所述镜头本体(1)设置于所述模组壳体(3)内，所述支撑座与所述模组壳体(3)连接。
  4. 根据权利要求3所述的镜头模组，其特征在于，所述支撑座包括相互连接的支架(26)及基座(27)，所述马达本体(210)固定在所述支架(26)上，所述基座(27)与所述模组壳体(3)连接。
  5. 根据权利要求4所述的镜头模组，其特征在于，所述支架(26)包括支架本体(261)，所述马达本体(210)固定在所述支架本体(261)上；
    所述支架本体(261)上开设有螺杆孔(262)，所述动力输出轴(211)与所述螺杆孔(262)连接。
  6. 根据权利要求5所述的镜头模组，其特征在于，所述支架本体(261)具有底壁(2611)、第一侧壁(2612)及第二侧壁(2613)，所述第一侧壁(2612)及所述第二侧壁(2613)均与所述底壁(2611)连接，且所述第一侧壁(2612)与所述第二侧壁(2613)相对设置；所述转接杆(22)位于所述第一侧壁(2612)与所述第二侧壁(2613)之间。
  7. 根据权利要求6所述的镜头模组，其特征在于，所述螺杆孔(262)设置有两个，其中一个所述螺杆孔(262)开设于所述第一侧壁(2612)、另一个所述螺杆孔(262)开设于所述第二侧壁(2613)。
  8. 根据权利要求1所述的镜头模组，其特征在于，所述调焦机构(2)还包括电路板(24)，所述电路板(24)包括电路板本体(241)，所述电路板本体(241)上设置有第一引脚(242)，所述马达本体(210)设置有第二引脚(212)，所述第一引脚(242)与所述第二引脚(212)连接。
  9. 根据权利要求8所述的镜头模组，其特征在于，所述电路板本体(241)上设置有光电耦合器(243)，所述光电耦合器(243)具有光检测区域； 所述转接杆(22)还包括挡块(224)，所述挡块(224)与所述转接杆本体(221)连接；所述挡块(224)位于所述光检测区域。
  10. 根据权利要求1所述的镜头模组，其特征在于，所述调焦机构(2)还包括导向杆(25)，所述导向杆(25)的轴向沿所述第一方向设置，所述转接杆本体(221)上开设有第一导向孔(225)，所述导向杆(25)与所述第一导向孔(225)连接。
  11. 根据权利要求3所述的镜头模组，其特征在于，所述模组壳体(3)内沿所述第一方向设置有连接轴(4)，所述镜头本体(1)与所述连接轴(4)连接。
  12. 一种电子设备，其特征在于，所述电子设备包括如权利要求1-11中任一项所述的镜头模组。
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