WO2021134281A1 - 移动驱动机构、摄像装置以及电子设备 - Google Patents
移动驱动机构、摄像装置以及电子设备 Download PDFInfo
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- WO2021134281A1 WO2021134281A1 PCT/CN2019/130069 CN2019130069W WO2021134281A1 WO 2021134281 A1 WO2021134281 A1 WO 2021134281A1 CN 2019130069 W CN2019130069 W CN 2019130069W WO 2021134281 A1 WO2021134281 A1 WO 2021134281A1
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- sleeve
- transmission assembly
- mobile
- guide groove
- mechanism according
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
Definitions
- This application relates to the technical field of photographing equipment, and in particular to a mobile driving mechanism, a camera device and an electronic device.
- the camera device usually includes a front camera and a rear camera.
- the rear camera is directly fixed and installed on the back of the smart electronic product and exposed.
- the front camera needs to be installed in the non-display area on the front of the smart electronic product.
- the appearance of smart electronic products is improved, and its position cannot be adjusted, which is inconvenient to use.
- the prior art proposes a telescopic camera device.
- the camera device includes a support base, a camera mechanism, a driving mechanism, a mounting mechanism, and a guide mechanism. Because of the guide mechanism, it is used to fix the guide mechanism and the guide mechanism.
- the overall size of the installation mechanism of the driving mechanism is relatively large, and the overall assembly process is relatively complicated. When the actual external force is applied, the working efficiency of the driving mechanism is reduced.
- the purpose of the present application is to provide a mobile drive mechanism, a camera device and an electronic device with a small size and simple assembly.
- the present application provides a mobile drive mechanism, including a drive member, a reduction box, a drive shaft, a sleeve assembly, and a transmission assembly.
- the drive member is connected with the reduction box to provide power to the drive shaft.
- the sleeve assembly includes a hollow sleeve, the end of the sleeve is provided with a first opening connected to the reduction box, the first opening extends to the side of the sleeve to form a guide groove, and the transmission assembly is accommodated in The sleeve is partially exposed in the guide groove, and the drive shaft is located in the sleeve and drives the transmission assembly to move along the guide groove.
- the transmission assembly includes a push rod and a screw member
- the push rod includes a main body part and a pushing part
- the main body part is hollow and used to receive the screw member
- the pushing part is exposed in the guide groove.
- the threaded member is threadedly butted with the drive shaft.
- a plurality of through holes are provided on the side wall of the main body part, and the screw member is provided with a rotation stop part and a contact part respectively at the corresponding through holes, and the contact part is in contact with the inner wall of the sleeve, and the sleeve
- the inner wall of the cylinder is provided with a blocking part corresponding to the rotation stop part.
- the side wall of the main body portion is provided with a plurality of through holes
- the threaded member is provided with a contact portion corresponding to the through hole
- the contact portion is in contact with the inner wall of the sleeve.
- the end of the screw member is higher than the end of the main body, the end of the screw member is provided with a rotation stop portion, and the inner wall of the sleeve is provided with a blocking portion corresponding to the rotation stop portion.
- the other end of the sleeve is provided with a second opening
- the sleeve assembly further includes a ball bearing mounted on the second opening.
- the drive shaft is a screw shaft, one end of which is connected with the reduction box, and the other end is connected with the ball bearing.
- the present application also provides a camera device, including a camera mechanism, a connecting mechanism and a moving drive mechanism as described above, and the moving drive mechanism drives the connecting mechanism to drive the camera mechanism to perform linear motion.
- the present application also provides an electronic device, including a housing with a housing space and the above-mentioned camera device, the camera device is provided in the housing space, and the housing is provided with the camera mechanism through it Through the port.
- a small-sized mobile drive mechanism is provided.
- a hollow sleeve to cooperate with a simplified transmission assembly, the overall size of the mechanism is greatly reduced, and the assembly process is simplified.
- the barrel is of coaxial design. When the push rod of the transmission assembly is stressed, the screw in the transmission assembly will be less inclined and the transmission efficiency will be higher.
- Fig. 1 is a schematic diagram of the structure of the mobile driving mechanism of this application
- Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
- Fig. 3 is a schematic diagram of an exploded structure of Fig. 1;
- FIG. 4 is a schematic diagram of the structure of the drive shaft, the transmission assembly and the sleeve assembly shown in FIG. 3;
- FIG. 5 is a schematic diagram of the structure of the transmission assembly shown in FIG. 4;
- FIG. 6 is a schematic diagram of an exploded structure of FIG. 5;
- Figure 7 is a schematic structural view of another embodiment of a transmission assembly
- FIG. 8 is a schematic diagram of the exploded structure of FIG. 7.
- the present application provides a mobile driving mechanism 100, which includes a driving button 10, a driving member 20, a reduction box 30, a driving shaft 40, a sleeve assembly 50, and a transmission assembly 60.
- the driving button 10 is connected with the driving member 20 for starting the driving member 20, and the driving member 20 is connected with the reduction box 30 to provide power to the driving shaft 40.
- the driving member 20 is For a stepping motor
- the reduction box 30 is a planetary gear box
- the drive shaft 40 is a screw shaft.
- the sleeve assembly 50 includes a hollow sleeve 51 and a ball bearing 52, and the sleeve 51 may have a circular or rectangular structure. Specifically, two ends of the sleeve 51 are respectively provided with a first opening 511 and a second opening 512.
- the first opening 511 is connected to the reduction box 30, and the connection method can be directly externally welded. In this way, the parts of the reduction box 30 can be directly used as the stroke limit surface of the mobile drive mechanism 100. Under the same stroke requirement, the mobile The overall length of the driving mechanism 100 can be more compact.
- first opening 511 extends to the side of the sleeve 51 to form a guide groove 513, and the width of the guide groove 513 is smaller than the diameter of the first opening 511.
- the second opening 512 is used to assemble the ball bearing 52, the ball bearing 52 includes a first fixing ring 521 and a second fixing ring 522, and the second fixing ring 522 is used for welding with the second opening 512 .
- the transmission assembly 60 is received in the sleeve 51 and partially exposed from the guide groove 513, the transmission assembly 60 includes a push rod 61 and a threaded member 62, the The push rod 61 includes a main body portion 611 and a pushing portion 612, the main body portion 611 is hollowed out and used to receive the screw 62, and the pushing portion 612 is exposed from the guide groove 513.
- the threaded member 62 is hollow and is provided with an internal thread, and the threaded member 62 is used in cooperation with the drive shaft 40 through the internal thread.
- the side wall of the main body portion 611 is provided with a plurality of through holes 6111
- the screw member 62 is provided with a rotation stop portion 621 and a contact portion 622 corresponding to the through holes 6111, and the contact portion 622 is connected to the sleeve.
- the inner wall of the barrel 51 is in contact with each other to ensure that the moving drive mechanism 100 works with minimal friction.
- the inner wall of the sleeve 51 is provided with a blocking portion 514 corresponding to the rotation stop portion 621.
- the blocking portion 514 may be a groove or It is a bump, as long as it is matched with the rotation stop part 621.
- the transmission assembly 60' includes a push rod 61' and a threaded member 62'
- the push rod 61' includes a main body portion 611' and a pushing portion 612'
- the side wall of the main body portion 611' is provided with a plurality of through holes 6111'
- the threaded member 62' is provided with a contact portion 622' corresponding to the through hole 6111'
- the contact portion 622' is connected to the inner wall of the sleeve 51 contact.
- the two ends of the threaded member 62' are respectively higher than the two ends of the main body portion 611', and the two ends of the threaded member 62' are respectively provided with a rotation stop portion 621', so
- the inner wall of the sleeve 51 is provided with a blocking portion 514 corresponding to the rotation stop portion 621 ′.
- FIGS. 1 to 6 Please refer to FIGS. 1 to 6 again, and the assembly process of the mobile driving mechanism 100 will be described below.
- the push rod 61 with the threaded member 62 is inserted into the sleeve 51 by the first opening 511 and the guide groove 513 of the sleeve 51 according to the position of the stop part 621 and the blocking part 514.
- the push part 612 can be guided Slide in the groove 513; secondly, screw into the drive shaft 40 to the screw 62, the first fixed ring 531 of the ball bearing 53 is welded to one end of the drive shaft 40, and the second fixed ring 522 is connected to the second opening of the sleeve 51 512 is welded to complete the assembly of the screw sub-part; finally, the sleeve 51, the reduction box 30, the drive member 20 and the drive button 10 are welded and assembled in sequence. The other end of the drive shaft 40 is connected with the reduction box 30. So far, the The assembly of the mobile drive mechanism 100 is completed.
- the movement process of the mobile driving mechanism 100 will be described in detail below.
- the driving member 20 When the driving button 10 is activated, the driving member 20 starts to work, and the output torque of the driving member 20 is amplified by the reduction gear box 30 to drive the driving shaft 40 to start rotating. Since the steering freedom of the push rod 61 is restricted, the steering cannot be turned, so The drive shaft 40 drives the push rod 61 to move along the guide groove 513 of the sleeve 51 through the screw 62. That is, the screw assembly composed of the drive shaft 40 and the screw 62 converts torque into thrust, and the form of motion is converted from rotation to forward and backward translation.
- the present application provides a mobile drive mechanism 100.
- a hollow sleeve 51 to cooperate with a simplified transmission assembly 60, the overall size of the mobile drive mechanism 100 is greatly reduced, and the assembly process is simplified.
- the sleeve 51 is of a coaxial design. When the push rod 61 of the transmission assembly 60 is stressed, the screw 62 in the transmission assembly 60 is inclined to be smaller, and the transmission efficiency is higher.
- the present application also provides a camera device (not shown), including a camera mechanism, a connecting mechanism, and a mobile driving mechanism, and the mobile driving mechanism drives the connecting mechanism to drive the camera mechanism to perform linear motion.
- the present application also provides an electronic device (not shown), including a housing with a storage space and a camera device, the camera device is provided in the storage space, and the housing for the camera Through the opening through which the mechanism passes, the camera mechanism performs a lifting movement through the opening.
- the electronic device is a mobile phone. Understandably, the electronic device may also be a tablet computer.
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Abstract
一种移动驱动机构（100），包括：驱动件（20）、减速箱（30）、驱动轴（40）、套筒组件（50）和传动组件（60），驱动件（20）与减速箱（30）连接以向驱动轴（40）提供动力，套筒组件（50）包括中空设置的套筒（51），套筒（51）端部设有与减速箱（30）连接的第一开口（511），第一开口（511）延伸至套筒（51）侧部以形成导向槽（513），传动组件（60）收容于套筒（51）内并部分露出于导向槽（513），驱动轴（40）位于套筒（51）内并带动传动组件（60）沿导向槽（513）运动。通过使用中空套筒（51）配合简化设计的传动组件（60），大幅度缩小了机构的整体尺寸，简化了装配工序，同时由于传动组件（60）与套筒（51）为同轴设计，传动组件（60）的传动效率更高。
Description
本申请涉及拍照设备技术领域，尤其涉及一种移动驱动机构、摄像装置以及电子设备。
随着移动互联网时代的到来，智能移动设备的数量不断上升。而在众多移动设备之中，手机无疑是最常见、最便携的移动终端。目前，手机的功能及其多样，其中之一便是摄像功能，因此，用于拍摄的摄像装置被广泛应用在智能电子产品中。为满足用户的需求，摄像装置通常包括前置摄像头和后置摄像头，后置摄像头直接固定安装在智能电子产品的背部并外露，前置摄像头则需要安装在智能电子产品正面的非显示区域，影响了智能电子产品的外观，而且其位置也不能调节，不方便使用。
为解决这个问题，现有技术提出了一种可伸缩的摄像装置，该摄像装置包括支撑座、摄像机构、驱动机构、安装机构和导向机构，因为导向机构的存在，导致用于固定导向机构和驱动机构的安装机构整体尺寸较大，而且整体组装工艺也相对繁杂，在实际受外力时，导致所述驱动机构的工作效率有所降低。
因此，有必要提供一种新的机构来解决上述技术问题。
本申请的目的在于提供了一种具有小尺寸且装配简单的移动驱动机构、摄像装置以及电子设备。
为达到上述目的，本申请提供了一种移动驱动机构，包括驱动件、减速箱、驱动轴、套筒组件和传动组件，所述驱动件与减速箱连接以向所述驱动轴提供动力，所述套筒组件包括中空设置的套筒，所述套筒端部设有与减速箱连接的第一开口，所述第一开口延伸至套筒侧部以形成导向槽，所述传动组件收容于套筒内并部分露出于导向槽，所述驱动轴位于套筒内并带动传动组件沿导向槽运动。
优选的，所述传动组件包括推杆和螺纹件，所述推杆包括主体部和推动部，所述主体部中空设置并用于收容所述螺纹件，所述推动部露出于导向槽。
优选的，所述螺纹件与所述驱动轴螺纹对接。
优选的，所述主体部的侧壁上设有若干通孔，所述螺纹件对应通孔处分别设有止转部和接触部，所述接触部与所述套筒内壁接触，所述套筒内壁对应止转部设有阻挡部。
优选的，所述主体部的侧壁上设有若干通孔，所述螺纹件对应通孔处设有接触部，所述接触部与所述套筒内壁接触。
优选的，所述螺纹件的端部高出所述主体部的端部，所述螺纹件的端部设有止转部，所述套筒内壁对应止转部设有阻挡部。
优选的，所述套筒另一端部设有第二开口，所述套筒组件还包括安装在第二开口上的球轴承。
优选的，所述驱动轴为丝杆轴，其一端与减速箱连接，另一端与所述球轴承连接。
本申请还提供了一种摄像装置，包括摄像机构、连接机构以如上所述的移动驱动机构，所述移动驱动机构驱动连接机构以带动摄像机构做线性运动。
本申请还提供了一种电子设备，包括具有收容空间的机壳和如上所述的摄像装置，所述摄像装置设于所述收容空间内，所述机壳上贯穿设有供所述摄像机构通过的通口。
本申请的有益效果在于：提供了一种小尺寸的移动驱动机构，通过使用中空套筒配合简化设计的传动组件，大幅度缩小了机构的整体尺寸，简化了装配工序，同时由于传动组件与套筒为同轴设计，传动组件的推杆受力时导致传动组件中的螺纹件产生的倾斜更小，传动效率更高。
图1为本申请的移动驱动机构的结构示意图；
图2为图1沿A-A线的剖视图；
图3为图1的分解结构示意图；
图4为图3中所示驱动轴、传动组件与套筒组件的结构示意图；
图5为图4中所示传动组件的结构示意图；
图6为图5的分解结构示意图；
图7为传动组件另一实施例的结构示意图；
图8为图7的分解结构示意图。
下面结合附图和实施方式对本申请作进一步说明。
需要说明的是，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后、内、外、顶部、底部……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
还需要说明的是，当元件被称为“固定于”或“设置于”另一个元件上时，该元件可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接”另一个元件，它可以是直接连接另一个元件或者可能同时存在居中元件。
请一并参考图1至图3，本申请提供了一种移动驱动机构100，包括驱动按钮10、驱动件20、减速箱30、驱动轴40、套筒组件50和传动组件60。
所述驱动按钮10与所述驱动件20连接用于启动所述驱动件20，所述驱动件20与减速箱30连接以向所述驱动轴40提供动力，优选的，所述驱动件20为步进电机，所述减速箱30为行星轮系齿轮箱，所述驱动轴40为丝杆轴。
请再参考图1至图4，所述套筒组件50包括中空设置的套筒51和球轴承52，所述套筒51可以是圆形或矩形结构。具体的，所述套筒51的两个端部分别设有第一开口511和第二开口512。所述第一开口511与减速箱30连接，连接方式可选用直接在外部焊接，这样，减速箱30的零件可以直接作为移动驱动机构100的行程限位面，在同等行程需求下，所述移动驱动机构100的整体长度可以更加小巧。进一步的，所述第一开口511延伸至套筒51侧部以形成导向槽513，所述导向槽513的宽度小于第一开口511的直径。所述第二开口512用于装配所述球轴承52，所述球轴承52包括第一固定圈521和第二固定圈522，所述第二固定圈522用于与所述第二开口512焊接。
请参考图4至图6，一较佳实施例中，所述传动组件60收容于套筒51内并部分露出于导向槽513，所述传动组件60包括推杆61和螺纹件62，所述推杆61包括主体部611和推动部612，所述主体部611中空设置并用于收容所述螺纹件62，所述推动部612露出于导向槽513。所述螺纹件62中空设置并设有内螺纹，所述螺纹件62通过内螺纹与所述驱动轴40配合使用。
进一步的，所述主体部611的侧壁上设有若干通孔6111，所述螺纹件62对应通孔6111处分别设有止转部621和接触部622，所述接触部622与所述套筒51内壁接触以保证移动驱动机构100在最小摩擦力的情况下工作，此外，所述套筒51内壁对应止转部621设有阻挡部514，所述阻挡部514可以是凹槽，也可以是凸块，只要与止转部621配合即可。
请参考图7和图8，另一较佳实施例中，所述传动组件60’包括推杆61’和螺纹件62’，所述推杆61’包括主体部611’和推动部612’，所述主体部611’的侧壁上设有若干通孔6111’，所述螺纹件62’对应通孔6111’处设有接触部622’，所述接触部622’与所述套筒51内壁接触。进一步的，所述螺纹件62’的两个端部分别高出所述主体部611’的两个端部，所述螺纹件62’的两个端部分别设有止转部621’，所述套筒51内壁对应止转部621’设有阻挡部514。
请再参考图1至图6，下面对所述移动驱动机构100的组装过程进行说明。
首先，安装有螺纹件62的推杆61由套筒51的第一开口511和导向槽513按所述止转部621和阻挡部514位置装入套筒51，所述推动部612可在导向槽513中滑动；其次，旋入驱动轴40至螺纹件62中，所述球轴承53的第一固定圈531与驱动轴40的一端焊接，第二固定圈522与套筒51的第二开口512焊接，以完成螺旋副部分的装配；最后，套筒51、减速箱30、驱动件20与驱动按钮10依次焊接组装，所述驱动轴40的另一端与减速箱30连接，至此，所述移动驱动机构100组装完成。
下面就所述移动驱动机构100的运动过程进行详细描述。
当启动驱动按钮10时，所述驱动件20开始工作，驱动件20的输出扭矩通过减速箱30放大，以带动驱动轴40开始旋转，由于推杆61的转向自由度受到约束而无法转向，故驱动轴40通过螺纹件62带动推杆61沿套筒51的导向槽513运动。即经由驱动轴40和螺纹件62组成的螺旋副组件将转矩转化为推力，运动形式由转动转化为前后平移。
本申请提供了一种移动驱动机构100，通过使用中空套筒51配合简化设计的传动组件60，大幅度缩小了所述移动驱动机构100的整体尺寸，简化了装配工序，同时由于传动组件60与套筒51为同轴设计，传动组件60的推杆61受力时导致传动组件60中的螺纹件62产生的倾斜更小，传动效率更高。
本申请还提供了一种摄像装置（未图示），包括摄像机构、连接机构和移动驱动机构，所述移动驱动机构驱动连接机构以带动摄像机构做线性运动。
本申请还提供了一种电子设备（未图示），包括具有收容空间的机壳和摄像装置，所述摄像装置设于所述收容空间内，所述机壳上贯穿设有供所述摄像机构通过的通口，所述摄像机构通过所述通口做升降运动。优选的，在本实施例中，所述电子设备为手机，可以理解地，电子设备还可以是平板电脑。
以上所述的仅是本申请的实施方式，在此应当指出，对于本领域的普通技术人员来说，在不脱离本申请创造构思的前提下，还可以做出改进，但这些均属于本申请的保护范围。
Claims (10)
1、一种移动驱动机构，其特征在于，包括驱动件、减速箱、驱动轴、套筒组件和传动组件，所述驱动件与减速箱连接以向所述驱动轴提供动力，所述套筒组件包括中空设置的套筒，所述套筒端部设有与减速箱连接的第一开口，所述第一开口延伸至套筒侧部以形成导向槽，所述传动组件收容于套筒内并部分露出于导向槽，所述驱动轴位于套筒内并带动传动组件沿导向槽运动。
2、根据权利要求1所述的移动驱动机构，其特征在于：所述传动组件包括推杆和螺纹件，所述推杆包括主体部和推动部，所述主体部中空设置并用于收容所述螺纹件，所述推动部露出于导向槽。
3、根据权利要求2所述的移动驱动机构，其特征在于：所述螺纹件与所述驱动轴螺纹对接。
4、根据权利要求2所述的移动驱动机构，其特征在于：所述主体部的侧壁上设有若干通孔，所述螺纹件对应通孔处分别设有止转部和接触部，所述接触部与所述套筒内壁接触，所述套筒内壁对应止转部设有阻挡部。
5、根据权利要求2所述的移动驱动机构，其特征在于：所述主体部的侧壁上设有若干通孔，所述螺纹件对应通孔处设有接触部，所述接触部与所述套筒内壁接触。
6、根据权利要求5所述的移动驱动机构，其特征在于：所述螺纹件的端部高出所述主体部的端部，所述螺纹件的端部设有止转部，所述套筒内壁对应止转部设有阻挡部。
7、根据权利要求1所述的移动驱动机构，其特征在于：所述套筒另一端部设有第二开口，所述套筒组件还包括安装在第二开口上的球轴承。
8、根据权利要求7所述的移动驱动机构，其特征在于：所述驱动轴为丝杆轴，其一端与减速箱连接，另一端与所述球轴承连接。
9、一种摄像装置，其特征在于，包括摄像机构、连接机构以及如权利要求1至8所述的移动驱动机构，所述移动驱动机构驱动连接机构以带动摄像机构做线性运动。
10、一种电子设备，其特征在于，包括具有收容空间的机壳和如权利要求9所述的摄像装置，所述摄像装置设于所述收容空间内，所述机壳上贯穿设有供所述摄像机构通过的通口。
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