WO2022188640A1

WO2022188640A1 - Periscope camera module and electronic apparatus

Info

Publication number: WO2022188640A1
Application number: PCT/CN2022/077939
Authority: WO
Inventors: 鲁晓峰; 王启; 沈倩倩; 蒋伟杰
Original assignee: 宁波舜宇光电信息有限公司
Priority date: 2021-03-08
Filing date: 2022-02-25
Publication date: 2022-09-15
Also published as: CN115052082B; CN115052082A

Abstract

Disclosed is a periscope camera module, comprising: a housing; a light refraction component, which is pivotably mounted in the housing and comprises a carrier and a light refraction element mounted on the carrier, the light refraction element being configured to refract imaging light from a photographed target; a lens group, which is maintained in a light refraction path of the light refraction component; a photosensitive component, which is maintained in a light emergent path of the lens group, and comprises a circuit board and a photosensitive chip electrically connected to the circuit board; and a drive component, which comprises a piezoelectric actuator and a transmission mechanism, which can be connected to the light refraction component and the piezoelectric actuator in a transmission manner. The piezoelectric actuator is configured to provide a linear acting force to the transmission mechanism, and the transmission mechanism is configured to convert the linear acting force into a rotary acting force which acts on the light refraction component, so as to drive the light refraction component to pivot, thereby achieving an optical anti-shake effect.

Description

潜望式摄像模组和电子设备Periscope camera modules and electronic equipment

技术领域technical field

本申请涉及摄像模组领域，尤其涉及潜望式摄像模组和电子设备，其中，所述潜望式摄像模组采用压电致动器作为驱动器来枢转光转折组件以实现光学防抖。The present application relates to the field of camera modules, and in particular, to a periscope camera module and electronic equipment, wherein the periscope camera module uses a piezoelectric actuator as a driver to pivot the light turning component to realize optical anti-shake.

背景技术Background technique

随着移动电子设备的普及，被用于移动电子设备的用于帮助使用者获取影像(例如，视频或者图像)的摄像模组的相关技术得到了迅猛的发展和进步。近年来，为了满足移动电子设备(例如，智能手机)能够实现多倍变焦拍摄的功能需求，能够解决摄像模组的高度尺寸和高倍变焦之间的技术矛盾的潜望式摄像模组被广泛地应用。With the popularization of mobile electronic devices, the related technologies of camera modules used in mobile electronic devices to help users acquire images (eg, videos or images) have been rapidly developed and advanced. In recent years, in order to meet the functional requirements that mobile electronic devices (such as smartphones) can achieve multi-zoom shooting, periscope camera modules that can solve the technical contradiction between the height size of the camera module and the high-power zoom have been widely used. application.

相较于传统的直立式摄像模组，潜望式摄像模组设有光转折元件(例如，棱镜、反射镜等)来改变其光学成像路径，从而实现降低摄像模组整体高度尺寸的同时满足具有较大有效焦距的光学设计需求。Compared with the traditional upright camera module, the periscope camera module is provided with light turning elements (such as prisms, mirrors, etc.) to change its optical imaging path, so as to reduce the overall height and size of the camera module while satisfying the Optical design requirements with large effective focal lengths.

为了提高潜望式摄像模组的成像性能的稳定性，在现有的一些潜望式摄像模组中，采用驱动元件旋转光转折元件的方案来实现光学防抖。主流的驱动元件为电磁式马达，例如，音圈马达(Voice Coil Motor:VCM)、形状记忆合金驱动器(Shape of Memory Alloy Actuator:SMA)等。电磁式马达在传统的直立式摄像模组中被良好地应用，然而，当电磁式马达被应用于潜望式摄像模组中来实现光学防抖时，其表现却不佳，例如，其结构相对较为复杂，其所提供的驱动力相对较小，其驱动行程相对较小等。In order to improve the stability of the imaging performance of the periscope camera module, in some existing periscope camera modules, the solution of driving the element to rotate the light turning element is adopted to realize optical image stabilization. The mainstream driving elements are electromagnetic motors, such as voice coil motors (Voice Coil Motor: VCM), shape memory alloy actuators (Shape of Memory Alloy Actuator: SMA), etc. Electromagnetic motors are well used in traditional vertical camera modules. However, when electromagnetic motors are used in periscope camera modules to achieve optical image stabilization, their performance is not good. For example, its structure It is relatively complex, the driving force provided by it is relatively small, and its driving stroke is relatively small.

相较于传统的直立式摄像模组，潜望式摄像模组等新型的摄像模组改变了摄像模组相对于移动电子设备的结构和位置关系，为驱动元件的布置和选择提供了更大的空间。Compared with the traditional upright camera modules, new camera modules such as periscope camera modules have changed the structure and positional relationship of the camera module relative to the mobile electronic device, providing greater opportunities for the arrangement and selection of drive components. Space.

因此，期待一种用于潜望式摄像模组的光学防抖驱动方案。Therefore, an optical anti-shake driving solution for a periscope camera module is expected.

发明内容SUMMARY OF THE INVENTION

本申请的一优势在于提供了一种潜望式摄像模组和电子设备，其中，所述潜望式摄像模组采用压电致动器作为驱动器来枢转光转折组件以实现光学防抖，其不仅能够提供足够大的驱动力，而且，能够提供精度更高和行程更长的驱动性能。An advantage of the present application is to provide a periscope camera module and an electronic device, wherein the periscope camera module uses a piezoelectric actuator as a driver to pivot the light turning component to achieve optical image stabilization, It can not only provide sufficient driving force, but also provide driving performance with higher precision and longer stroke.

本申请的另一优势在于提供了一种潜望式摄像模组和电子设备，其中，所述潜望式摄像模组采用传动机构将压电致动器提供的线性作用力转化为作用于枢转光转折组件的转动作用力以驱动所述光转折组件进行枢转，能够进行有效的光学防抖调整。Another advantage of the present application is to provide a periscope camera module and electronic equipment, wherein the periscope camera module adopts a transmission mechanism to convert the linear force provided by the piezoelectric actuator into a linear force acting on the pivot The rotational force of the light turning and turning assembly drives the light turning assembly to pivot, which enables effective optical anti-shake adjustment.

本申请的又一优势在于提供了一种潜望式摄像模组和电子设备，其中，所述压电致动器具有相对较小的尺寸和更为简化的结构，以利于所述压电致动器在所述潜望式摄像模组的布置。Another advantage of the present application is to provide a periscope camera module and electronic equipment, wherein the piezoelectric actuator has a relatively small size and a more simplified structure, so as to facilitate the piezoelectric actuator The arrangement of the actuator in the periscope camera module.

通过下面的描述，本申请的其它优势和特征将会变得显而易见，并可以通过权利要求书中特别指出的手段和组合得到实现。Other advantages and features of the application will become apparent from the description below and may be realized by means of the instrumentalities and combinations particularly pointed out in the claims.

为实现上述至少一优势，本申请提供一种潜望式摄像模组，其包括：To achieve at least one of the above advantages, the present application provides a periscope camera module, which includes:

壳体；case;

被可枢转地安装于所述壳体内的光转折组件，其中，所述光转折组件，包括载体和被安装于所述载体的光转折元件，所述光转折元件被配置为对来自被摄目标的成像光线进行转折；A light turning assembly pivotally mounted in the housing, wherein the light turning assembly includes a carrier and a light turning element mounted on the carrier, the light turning element The imaging light of the target is turned;

被保持于所述光转折组件的光转折路径上的透镜组；a lens group held on the light turning path of the light turning assembly;

被保持于所述透镜组的出光路径上的感光组件，包括线路板和电连接于所述线路板的感光芯片；以及The photosensitive component held on the light exit path of the lens group includes a circuit board and a photosensitive chip electrically connected to the circuit board; and

驱动组件，其中，所述驱动组件包括压电致动器和可传动地连接所述光转折组件和所述压电致动器的传动机构，其中，所述压电致动器被配置为提供线性作用力于所述传动机构，所述传动机构被配置为将所述线性作用力转化为作用于所述光转折组件的转动作用力，以驱动所述光转折组件进行枢转从而进行光学防抖。A drive assembly, wherein the drive assembly includes a piezoelectric actuator and a transmission mechanism drivably connecting the light turning assembly and the piezoelectric actuator, wherein the piezoelectric actuator is configured to provide A linear force is applied to the transmission mechanism, and the transmission mechanism is configured to convert the linear force into a rotational force acting on the light-returning assembly, so as to drive the light-returning assembly to pivot for optical protection. shake.

在根据本申请的潜望式摄像模组中，所述压电致动器包括压电主动部、自所述压电主动部延伸的从动轴以及紧配于所述从动轴的驱动部，其中，所述驱动部在所述压电主动部和所述从动轴的作用下被配置为提供沿着所述从动轴所设定的方向的线性作用力。In the periscope camera module according to the present application, the piezoelectric actuator includes a piezoelectric active part, a driven shaft extending from the piezoelectric active part, and a driving part tightly fitted to the driven shaft , wherein the driving part is configured to provide a linear force along a direction set by the driven shaft under the action of the piezoelectric active part and the driven shaft.

在根据本申请的潜望式摄像模组中，所述载体包括载体主体和突出地自所述载体主体延伸的枢转轴，所述枢转轴被可枢转地安装于所述壳体，以使得所述光转折组件能够绕着所述枢转轴进行枢转。In the periscope camera module according to the present application, the carrier includes a carrier body and a pivot shaft protrudingly extending from the carrier body, the pivot shaft being pivotably mounted to the housing such that The light turning assembly is pivotable about the pivot axis.

在根据本申请的潜望式摄像模组中，所述枢转轴形成于所述载体主体的位置对应于所述光转折组件的重心。In the periscope camera module according to the present application, the position where the pivot shaft is formed on the carrier body corresponds to the center of gravity of the light turning component.

在根据本申请的潜望式摄像模组中，所述传动机构具有第一端和相对于所述第一端的第二端，所述传动机构的第一端连接于所述压电致动器的驱动部，所述传动机构的第二端连接于所述枢转轴。In the periscope camera module according to the present application, the transmission mechanism has a first end and a second end opposite to the first end, and the first end of the transmission mechanism is connected to the piezoelectric actuator The second end of the transmission mechanism is connected to the pivot shaft.

在根据本申请的潜望式摄像模组中，所述传动机构包括第一连杆和铰接于所述第一连杆的第二连杆，其中，所述第一连杆的自由端连接于所述压电致动器的驱动部，所述第二连杆的自由端连接于所述枢转轴。In the periscope camera module according to the present application, the transmission mechanism includes a first link and a second link hinged to the first link, wherein the free end of the first link is connected to In the driving part of the piezoelectric actuator, the free end of the second link is connected to the pivot shaft.

在根据本申请的潜望式摄像模组中，所述载体包括具有弧形面的载体主体，所述壳体具有凹陷地形成于其内侧面的弧形腔，所述载体主体以其弧形面被可枢转地嵌合于所述弧形腔的方式被可枢转地安装于所述壳体的所述弧形腔内，所述载体还包括突出地自所述载体主体的侧表面延伸的驱动轴。In the periscope camera module according to the present application, the carrier includes a carrier body having an arc-shaped surface, the housing has an arc-shaped cavity concavely formed on the inner side thereof, and the carrier body has an arc-shaped surface thereof. and is pivotally mounted within the arcuate cavity of the housing in such a manner that the surface is pivotably fitted into the arcuate cavity, and the carrier further includes a side surface protruding from the carrier body Extended drive shaft.

在根据本申请的潜望式摄像模组中，所述弧形面的形状与所述弧形腔的内侧面的形状相适配。In the periscope camera module according to the present application, the shape of the arc-shaped surface is adapted to the shape of the inner side surface of the arc-shaped cavity.

在根据本申请的潜望式摄像模组中，所述弧形面设有第一中心轴，所述弧形腔设有第二中心轴，所述第一中心轴与所述第二中心轴重合。In the periscope camera module according to the present application, the arc-shaped surface is provided with a first central axis, the arc-shaped cavity is provided with a second central axis, the first central axis and the second central axis coincide.

在根据本申请的潜望式摄像模组中，所述光转折组件进一步包括设置于所述弧形腔内的弧形导向结构，所述弧形导向结构被配置为引导所述光转折组件沿着所述弧形导向结构所设定的导向路线转动。In the periscope camera module according to the present application, the light turning assembly further comprises an arc-shaped guide structure disposed in the arc-shaped cavity, the arc-shaped guiding structure is configured to guide the light turning assembly along the It rotates according to the guide route set by the arc guide structure.

在根据本申请的潜望式摄像模组中，所述弧形导向结构包括凹陷地形成于所述弧形面的至少一弧形导槽和安装于所述弧形导槽内的至少一滚珠。In the periscope camera module according to the present application, the arc-shaped guide structure includes at least one arc-shaped guide groove recessed in the arc-shaped surface and at least one ball installed in the arc-shaped guide groove .

在根据本申请的潜望式摄像模组中，所述弧形导向结构包括凹陷地形成于所述弧形腔的内侧面的至少一弧形导槽和安装于所述弧形导槽内的至少一滚珠。In the periscope camera module according to the present application, the arc-shaped guide structure includes at least one arc-shaped guide groove formed concavely on the inner side surface of the arc-shaped cavity, and an arc-shaped guide groove installed in the arc-shaped guide groove At least one ball.

在根据本申请的潜望式摄像模组中，所述至少一弧形导槽包括第一弧形导槽和第二弧形导槽，所述第一弧形导槽平行于所述第二弧形导槽。In the periscope camera module according to the present application, the at least one arc-shaped guide groove includes a first arc-shaped guide groove and a second arc-shaped guide groove, the first arc-shaped guide groove is parallel to the second arc-shaped guide groove Curved guide slot.

在根据本申请的潜望式摄像模组中，所述驱动轴形成于所述载体主体的侧表面的位置对应于所述第一中心轴。In the periscope camera module according to the present application, the position where the drive shaft is formed on the side surface of the carrier body corresponds to the first central axis.

在根据本申请的潜望式摄像模组中，所述传动机构包括第一连杆和铰接于所述第一连杆的第二连杆，其中，所述第一连杆连接于所述压电致动器的驱动部，所述第二连杆连接于所述枢转轴。In the periscope camera module according to the present application, the transmission mechanism includes a first link and a second link hinged to the first link, wherein the first link is connected to the pressure In the driving part of the electric actuator, the second link is connected to the pivot shaft.

在根据本申请的潜望式摄像模组中，所述压电致动器所产生的线性作用力的大小为0.6N至2N。In the periscope camera module according to the present application, the magnitude of the linear force generated by the piezoelectric actuator is 0.6N to 2N.

根据本申请的另一方面，本申请还提供了一种电子设备，包括如上所述的包括如上所述的潜望式摄像模组。According to another aspect of the present application, the present application further provides an electronic device including the above-mentioned periscope camera module.

通过对随后的描述和附图的理解，本申请进一步的目的和优势将得以充分体现。Further objects and advantages of the present application will be fully realized by an understanding of the ensuing description and drawings.

本申请的这些和其它目的、特点和优势，通过下述的详细说明，附图和权利要求得以充分体现。These and other objects, features and advantages of the present application are fully embodied by the following detailed description, drawings and claims.

附图说明Description of drawings

通过结合附图对本申请实施例进行更详细的描述，本申请的上述以及其他目的、特征和优势将变得更加明显。附图用来提供对本申请实施例的进一步理解，并且构成说明书的一部分，与本申请实施例一起用于解释本申请，并不构成对本申请的限制。在附图中，相同的参考标号通常代表相同部件或步骤。The above and other objects, features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application, constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numbers generally refer to the same components or steps.

图1图示了根据本申请实施例的潜望式摄像模组的示意图。FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application.

图2图示了根据本申请实施例的所述潜望式摄像模组的光学***的示意图。FIG. 2 illustrates a schematic diagram of an optical system of the periscope camera module according to an embodiment of the present application.

图3图示了根据本申请实施例的所述潜望式摄像模组的光阻挡元件的一个具体示例的示意图。FIG. 3 is a schematic diagram illustrating a specific example of a light blocking element of the periscope camera module according to an embodiment of the present application.

图4A和图4B图示了根据本申请实施例的所述潜望式摄像模组的压电致动器的示意图。4A and 4B illustrate schematic diagrams of a piezoelectric actuator of the periscope camera module according to an embodiment of the present application.

图5A和图5B图示了根据本申请实施例的所述潜望式摄像模组的压电致动器的一个变形实施例的示意图。5A and 5B illustrate schematic diagrams of a modified embodiment of the piezoelectric actuator of the periscope camera module according to an embodiment of the present application.

图6图示了根据本申请实施例的所述潜望式摄像模组的光转折组件的***示意图。FIG. 6 illustrates an exploded schematic diagram of the light turning assembly of the periscope camera module according to an embodiment of the present application.

图7图示了根据本申请实施例的所述潜望式摄像模组的光转折组件的一个变形实施例的***示意图。Fig. 7 illustrates an exploded schematic diagram of a modified embodiment of the light turning assembly of the periscope camera module according to an embodiment of the present application.

图8图示了配置有根据本申请实施例的所述潜望式摄像模组的电子设备示意图。FIG. 8 illustrates a schematic diagram of an electronic device configured with the periscope camera module according to an embodiment of the present application.

具体实施方式Detailed ways

下面，将参考附图详细地描述根据本申请的示例实施例。显然，所描述的实施例仅仅是本申请的一部分实施例，而不是本申请的全部实施例，应理解，本申请不受这里描述的示例实施例的限制。Hereinafter, exemplary embodiments according to the present application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application, and it should be understood that the present application is not limited by the example embodiments described herein.

申请概述Application overview

如上所述，现有的用于驱动潜望式摄像模组中的光转折元件12以进行光学防抖的驱动元件为电磁式马达，例如，音圈马达(Voice Coil Motor:VCM)、形状记忆合金驱动器(Shape of Memory Alloy Actuator:SMA)等。由于传统的直立式摄像模组沿着电子设备，比如手机的厚度方向设置，因此摄像模组中的各个组件以轻薄和小型化为趋势，在这种情况下，电磁式马达可以提供足够的驱动力。但是，随着潜望式摄像模组等新型的摄像模组改变了摄像模组相对于电子设备的结构和位置关系，也就是，可以沿着电子设备的长度或者宽度方向设置，使得摄像模组不再受到电子设备的厚度方向的尺寸限制，从而可以在尺寸增加方面获得更大的自由度。As mentioned above, the existing driving element for driving the light-reversing element 12 in the periscope camera module for optical image stabilization is an electromagnetic motor, such as a voice coil motor (VCM), a shape memory Alloy Actuator (Shape of Memory Alloy Actuator: SMA), etc. Since the traditional vertical camera module is arranged along the thickness direction of electronic devices, such as mobile phones, the various components in the camera module tend to be thin and miniaturized. In this case, the electromagnetic motor can provide sufficient driving force force. However, with the new type of camera modules such as periscope camera modules, the structure and positional relationship of the camera module relative to the electronic device has been changed, that is, the camera module can be arranged along the length or width of the electronic device, so that the camera module It is no longer limited by the size of the electronic device in the thickness direction, so that a greater degree of freedom in size increase can be obtained.

并且，随着对于摄像模组的成像性能的要求提高，对于摄像模组的感光芯片提出了更高的要求。伴随着尺寸增加方面的限制减小，为了实现更强的功能，摄像模组中与感光芯片适配的组件的尺寸也相应地增大(包括光学镜头、光转折元件等)，从而导致组件的重量也进一步增大，例如，光转折元件的重量增加了。Moreover, as the requirements for the imaging performance of the camera module increase, higher requirements are put forward for the photosensitive chip of the camera module. Along with the reduction in the limitation of size increase, in order to achieve stronger functions, the size of the components in the camera module that are adapted to the photosensitive chip also increases accordingly (including optical lenses, light turning elements, etc.) The weight is also further increased, eg, the weight of the light redirecting element is increased.

在这种情况下，传统的电磁式马达不再能够提供足够的驱动力，量化来看，现有的音圈马达驱动器仅能够驱动重量小于100mg的部分(例如，光学镜头)，而记忆合金马达则需要较大的行程空间设置，也就是，如果摄像模组中的待驱动的组件的重量超过100mg，现有的驱动器将无法满足潜望式摄像模组的光学防抖的应用需求，因此必须为摄像模组开发新一代的驱动方案。In this case, the traditional electromagnetic motor can no longer provide enough driving force. In terms of quantification, the existing voice coil motor driver can only drive the part (for example, the optical lens) whose weight is less than 100mg, while the memory alloy motor A larger travel space is required, that is, if the weight of the components to be driven in the camera module exceeds 100mg, the existing driver will not be able to meet the application requirements of the optical image stabilization of the periscope camera module, so it must be Develop a new generation of drive solutions for camera modules.

基于此，本申请的技术路线是提供一种基于能够提供更大驱动力的压电致动器来满足潜望式摄像模组的光学防抖的设计要求，从而满足新型的潜望式摄像模组中的组件大型化之后对组件驱动力的需求。Based on this, the technical route of the present application is to provide a piezoelectric actuator that can provide a larger driving force to meet the design requirements of the optical image stabilization of the periscope camera module, so as to meet the new periscope camera module. Demand for component driving force after components in the group are enlarged.

这里，本领域技术人员可以理解的是，由于新型的潜望式摄像模组的技术要求与传统的需要实现小型化的潜望式摄像模组的技术要求完全相反，因此在针对新型的潜望式摄像模组的技术路线中，需要一整套基于新型的潜望式摄像模组的技术要求的设计方案，而不仅是简单地将新型的制动元件应用于传统的潜望式摄像模组的设计当中。Here, those skilled in the art can understand that, since the technical requirements of the new periscope camera module are completely opposite to the technical requirements of the traditional periscope camera module that needs to be miniaturized, therefore in the new periscope camera module In the technical route of the periscope camera module, a complete set of design solutions based on the technical requirements of the new periscope camera module is required, not just the application of the new braking element to the traditional periscope camera module. in design.

具体地，本申请的技术方案提供了一种潜望式摄像模组，包括：壳体；被可枢转地安装于所述壳体内的光转折组件，其中，所述光转折组件，包括载体和被安装于所述载体的光转折元件，所述光转折元件被配置为对来自被摄目标的成像光线进行转折；被保持于所述光转折组件的光转折路径上的透镜组；被保持于所述透镜组的出光路径上的感光组件，包括线路板和电连接于所述线路板的感光芯片；以及，驱动组件，其中，所述驱动组件包括压电致动器和可传动地连接所述光转折组件和所述压电致动器的传动机构，其中，所述压电致动器被配置为提供线性作用力于所述传动机构，所述传动机构被配置为将所述线性作用力转化为作用于所述光转折组件的转动作用力，以驱动所述光转折组件进行枢转从而进行光学防抖。Specifically, the technical solution of the present application provides a periscope camera module, comprising: a housing; a light turning assembly pivotally installed in the housing, wherein the light turning assembly includes a carrier and a light turning element mounted on the carrier, the light turning element is configured to turn the imaging light from the subject; a lens group held on the light turning path of the light turning assembly; being held The photosensitive component on the light exit path of the lens group includes a circuit board and a photosensitive chip electrically connected to the circuit board; and a driving component, wherein the driving component includes a piezoelectric actuator and is drivably connected A transmission mechanism of the light turning assembly and the piezoelectric actuator, wherein the piezoelectric actuator is configured to provide a linear force to the transmission mechanism, and the transmission mechanism is configured to transfer the linear force to the transmission mechanism. The acting force is converted into a rotational acting force acting on the light deflection assembly, so as to drive the light deflection assembly to pivot so as to perform optical anti-shake.

这样，通过以能够提供更大驱动力的压电致动器为基础的潜望式摄像模组的整体结构配置，将压电致动器作为需要旋转的光转折组件的驱动元件，可以驱动重量更大的潜望式摄像模组的光转折组件，也就是，重量远大于100毫克，例如直到重量超过1克的光转折组件。并且，即使压电致动器单次形变所提供的行程有限，也可以通过叠加多次形变提供的行程的方式，来实现待移动的光学组件的较长距离的移动，且压电致动器单次形变加上恢复的时间很短，完全可以满足变焦时间上的需要。此外，采用传动机构将压电致动器提供的线性作用力转化为作用于枢转光转折组件的转动作用力以驱动所述光转折组件进行枢转，以实现光学抖动的调整。In this way, through the overall structural configuration of the periscope camera module based on the piezoelectric actuator that can provide a larger driving force, the piezoelectric actuator can be used as the driving element of the light-reversing component that needs to be rotated, and the weight can be driven. The light-bending components of larger periscope camera modules, that is, light-bending components that weigh much more than 100 mg, for example, up to the weight of more than 1 gram. Moreover, even if the stroke provided by a single deformation of the piezoelectric actuator is limited, a longer distance movement of the optical component to be moved can be realized by stacking the strokes provided by multiple deformations, and the piezoelectric actuator The single deformation plus the recovery time is very short, which can fully meet the needs of the zoom time. In addition, a transmission mechanism is used to convert the linear force provided by the piezoelectric actuator into a rotational force acting on the pivoting light deflection assembly to drive the light deflection assembly to pivot, so as to adjust the optical jitter.

示例性潜望式摄像模组Exemplary periscope camera module

图1图示了根据本申请实施例的潜望式摄像模组的示意图。如图1所示，根据本申请实施例的所述潜望式摄像模组，包括：光转折组件10、透镜组20、感光组件30和驱动组件40。FIG. 1 illustrates a schematic diagram of a periscope camera module according to an embodiment of the present application. As shown in FIG. 1 , the periscope camera module according to the embodiment of the present application includes: a light turning component 10 , a lens group 20 , a photosensitive component 30 and a driving component 40 .

如图1所示，在本申请实施例中，所述光转折组件10包括：载体11和被安装于所述载体上的光转折元件12，其中，所述光转折元件12，用于接收来自被摄目标的成像光线，并将该成像光线转折至所述透镜组。也就是，所述透镜组20被保持于所述光转折组件的光转折路径上，如图2所示。特别地，在本申请实施例中，所述光转折元件12被配置为将来自被摄目标的成像光线进行90°的转折，以使得所述潜望式摄像模组的整体高度尺寸可得以缩减。这里，考虑到制造公差，在实际工作过程中，所述光转折元件12对成像光线进行转折的角度可能存在1°以内的误差，对此，本领域普通技术人员应可以理解。As shown in FIG. 1 , in the embodiment of the present application, the light deflection assembly 10 includes: a carrier 11 and a light deflection element 12 mounted on the carrier, wherein the light deflection element 12 is used to receive a The imaging light of the photographed object is converted to the lens group. That is, the lens group 20 is held on the light turning path of the light turning assembly, as shown in FIG. 2 . In particular, in the embodiment of the present application, the light turning element 12 is configured to turn the imaging light from the photographed object by 90°, so that the overall height dimension of the periscope camera module can be reduced . Here, considering the manufacturing tolerance, in the actual working process, the angle of the light turning element 12 turning the imaging light may have an error within 1°, which should be understood by those of ordinary skill in the art.

在本申请的具体示例中，所述光转折元件12可被实施为反射镜(例如，平面反射镜)，或者，光转折棱镜(例如，三棱镜)。例如，当所述光转折元件12被实施为光转折棱镜时，所述光转折棱镜的光入射面与其光出射面相互垂直且所述光转折棱镜的光反射面与所述光入射面和所述光出射面成45°角倾斜，这样，当成像光线以垂直于所述光入射面的方式进入所述光转折棱镜后，该成像光线能够在所述光反射面处发生90°转折，以垂直于所述光出射面的方式从所述光出射面输出。In a specific example of the present application, the light-reflecting element 12 may be implemented as a mirror (eg, a flat mirror), or a light-reflecting prism (eg, a triangular prism). For example, when the light-reversing element 12 is implemented as a light-reversing prism, the light-incident surface of the light-reversing prism and its light-exiting surface are perpendicular to each other, and the light-reflecting surface of the light-reversing prism and the light-incidence surface and the light-returning surface are perpendicular to each other. The light exit surface is inclined at an angle of 45°, so that when the imaging light enters the light turning prism in a manner perpendicular to the light incident surface, the imaging light can be turned 90° at the light reflecting surface, so that output from the light exit surface in a manner perpendicular to the light exit surface.

如图1所示，在本申请实施例中，所述载体11具有承载面，在具体实施中，所述光转折元件12可通过黏着剂被附着于所述载体的承载面上。应可以理解，所述承载面的倾斜角度影响着所述光转折元件12的光反射面的角度，在本申请实施例中，所述承载面相对于水平面的夹角为45°，这样，当所述光转折元件12被附着于所述承载面时，所述光转折元件12能够使得成像光线在其光反射面处发生仅90°的转折。As shown in FIG. 1 , in the embodiment of the present application, the carrier 11 has a bearing surface. In a specific implementation, the light turning element 12 can be attached to the bearing surface of the carrier through an adhesive. It should be understood that the inclination angle of the bearing surface affects the angle of the light reflection surface of the light turning element 12. In the embodiment of the present application, the included angle of the bearing surface relative to the horizontal plane is 45°. When the light turning element 12 is attached to the bearing surface, the light turning element 12 can make the imaging light turn only 90° at its light reflecting surface.

进一步地，在本申请实施例中，所述透镜组20对应于所述光转折元件12，用于接收来自所述光转折元件12的成像光线以该成像光线进行汇聚。也就是，在本申请实施例中，所述透镜组20被保持于所述光转折组件12的光转折路径上，如图2所示。Further, in the embodiment of the present application, the lens group 20 corresponds to the light refraction element 12 , and is used for receiving the imaging light from the light refraction element 12 and condensing the imaging light. That is, in the embodiment of the present application, the lens group 20 is maintained on the light turning path of the light turning assembly 12 , as shown in FIG. 2 .

在本申请实施例中，所述透镜组20包括至少一光学透镜21，用于对成像光线进行汇聚。在本申请一些示例中，所述透镜组还包括用于***述至少一光学透镜的镜筒22。当然，在本申请另外一些示例中，所述透镜组也可以不包括所述镜筒，即，所述透镜组被实施为裸镜头。In the embodiment of the present application, the lens group 20 includes at least one optical lens 21 for condensing the imaging light. In some examples of the present application, the lens group further includes a lens barrel 22 for accommodating the at least one optical lens. Of course, in some other examples of the present application, the lens group may also not include the lens barrel, that is, the lens group is implemented as a bare lens.

值得一提的是，在本申请的一些示例中，所述透镜组沿着其所设定的光轴方向，包括：固定部分、变焦部分和对焦部分(未有图示意：所述透镜组包括固定部分、变焦部分和对焦部分)，其中，所述变焦部分和所述对焦部分适于在驱动器的作用下相对于所述固定部分的位置能够分别进行调整，从而实现所述潜望式摄像模组的光学性能的调整，包括但不限于光学对焦和光学变焦等。It is worth mentioning that, in some examples of the present application, the lens group includes a fixed part, a zoom part and a focus part along its set optical axis direction (not shown in the figure: the lens group includes A fixed part, a zooming part and a focusing part), wherein the zooming part and the focusing part are adapted to be adjusted respectively with respect to the positions of the fixed part under the action of a driver, so as to realize the periscope camera mode Adjustment of the optical performance of the group, including but not limited to optical focus and optical zoom, etc.

进一步地，在本申请实施例中，所述感光组件30对应于所述透镜组20，用于接收来自所述透镜组20的成像光线并进行成像，也就是，在本申请实施例中，所述感光组件30被保持于所述透镜组20的出光路径上，如图2所示。Further, in the embodiment of the present application, the photosensitive component 30 corresponds to the lens group 20, and is used to receive the imaging light from the lens group 20 and perform imaging, that is, in the embodiment of the present application, the The photosensitive component 30 is held on the light exit path of the lens group 20 , as shown in FIG. 2 .

具体地，如图1所示，在本申请实施例中，所述感光组件30包括线路板31、电连接于所述线路板31的感光芯片32和被保持于所述感光芯片32的感光路径上的滤光元件33，其中，所述滤光元件33用于过滤成像光线中的杂散光。在如图1所示意的示例中，所述感光组件30，进一步包括设置于所述线路板31的支架34，其中，所述滤光元件33被安装于所述支架34上以被保持于所述感光芯片32的感光路径上。Specifically, as shown in FIG. 1 , in the embodiment of the present application, the photosensitive assembly 30 includes a circuit board 31 , a photosensitive chip 32 electrically connected to the circuit board 31 , and a photosensitive path held by the photosensitive chip 32 . The filter element 33 on the above, wherein the filter element 33 is used to filter the stray light in the imaging light. In the example shown in FIG. 1 , the photosensitive assembly 30 further includes a bracket 34 disposed on the circuit board 31 , wherein the filter element 33 is installed on the bracket 34 to be held on the bracket 34 . on the photosensitive path of the photosensitive chip 32 .

值得一提的是，在本申请其他示例中，所述滤光元件33被保持于所述感光芯片32的感光路径上的具体实施方式并不为本申请所局限，例如，所述滤光元件34可被实施为滤波膜并涂覆于所述透镜组20的某一光学透镜的表面，以起到滤光的效果，再如，所述感光组件30可进一步包括安装于所述支架34的滤光元件支架(未有图示意)，其中，所述滤光元件33以被安装于所述滤光元件支架的方式被保持于所述感光芯片32的感光路径上。It is worth mentioning that, in other examples of the present application, the specific implementation of the filter element 33 held on the photosensitive path of the photosensitive chip 32 is not limited by the present application, for example, the filter element 34 can be implemented as a filter film and coated on the surface of a certain optical lens of the lens group 20 to achieve a filtering effect. For another example, the photosensitive component 30 can further include a film mounted on the bracket 34. A filter element holder (not shown), wherein the filter element 33 is held on the photosensitive path of the photosensitive chip 32 by being mounted on the filter element holder.

为了对进入所述感光组件30的成像光线进行限制，在本申请一些示例中，所述潜望式摄像模组，进一步包括设置于所述感光组件30的感光路径上的光阻挡元件50，其中，所述光阻挡元件能够至少部分地阻挡成像光线投射，以尽可能地减少杂散光对所述潜望式摄像模组的成像质量的影响。In order to limit the imaging light entering the photosensitive assembly 30, in some examples of the present application, the periscope camera module further includes a light blocking element 50 disposed on the photosensitive path of the photosensitive assembly 30, wherein , the light blocking element can at least partially block the projection of imaging light, so as to reduce the influence of stray light on the imaging quality of the periscope camera module as much as possible.

图3图示了根据本申请实施例的所述潜望式摄像模组的光阻挡元件50的一个具体示例的示意图。如图3所示，在该具体示例中，所述光阻挡元件50被安装于所述光转折元件12的出光面，其中，所述光阻挡元件50具有透光孔500，其适于使成像光线中的有效部分透过并阻挡至少部分成像光线中的杂散光。优选地，所述透光孔500为圆形孔，以配合所述可透镜组的圆形有效光学区，尽可能地减少杂散光对成像质量的影响。FIG. 3 is a schematic diagram illustrating a specific example of the light blocking element 50 of the periscope camera module according to the embodiment of the present application. As shown in FIG. 3 , in this specific example, the light blocking element 50 is mounted on the light exit surface of the light diverting element 12 , wherein the light blocking element 50 has a light-transmitting hole 500 , which is suitable for imaging An effective portion of the light transmits and blocks at least a portion of the stray light in the imaged light. Preferably, the light-transmitting hole 500 is a circular hole, so as to match the circular effective optical area of the lensable group, and reduce the influence of stray light on the imaging quality as much as possible.

值得一提的是，在本申请其他示例中，所述光阻挡元件50可被设置于所述光转折元件12的其他位置，例如，所述光转折元件12的光入射面或者光反射面，对此，并不为本申请所局限。还值得一提的是，在本申请其他示例中，所述光阻挡元件12也可以作为一个独立的部件被设置于所述感光组件30的感光路径上，例如，作为一个独立的部件被设置于所述光转折元件12和所述透镜组支架，再如，作为一个独立的部分被设置于所述透镜组20和所述感光组件30之间，对此，并不为本申请所局限。It is worth mentioning that in other examples of the present application, the light blocking element 50 may be disposed at other positions of the light redirecting element 12 , for example, the light incident surface or the light reflecting surface of the light redirecting element 12 , This is not limited by this application. It is also worth mentioning that, in other examples of the present application, the light blocking element 12 may also be disposed on the photosensitive path of the photosensitive assembly 30 as an independent component, for example, disposed as an independent component on the photosensitive path of the photosensitive assembly 30 . For another example, the light refraction element 12 and the lens group bracket are disposed between the lens group 20 and the photosensitive assembly 30 as an independent part, which is not limited by this application.

进一步地，如图1所示，在本申请实施例中，所述驱动组件40包括被配置为提供用驱动所述光转折组件12进行枢转的线性作用力的驱动元件，以通过所述驱动元件实现所述潜望式摄像模组的光学防抖功能，来提高所述潜望式摄像模组的拍摄性能的稳定性。应可以理解，在拍摄过程中，所述潜望式摄像模组的不经意间的抖动会使得其所采集的图像模糊，相应地，通过所述驱动元件旋转所述光转折组件12可以对冲不经意间的抖动对成像性能造成的影响，以确保成像性能的稳定性。Further, as shown in FIG. 1 , in the embodiment of the present application, the driving assembly 40 includes a driving element configured to provide a linear force for driving the light turning assembly 12 to pivot, so as to pass the driving The component realizes the optical anti-shake function of the periscope camera module, so as to improve the stability of the shooting performance of the periscope camera module. It should be understood that during the shooting process, the inadvertent shaking of the periscope camera module will make the images collected by the periscope camera module blurred. The impact of jitter on imaging performance to ensure the stability of imaging performance.

如前所述，在现有的潜望式摄像模组中，主流的驱动元件100为电磁式马达，例如，音圈马达(Voice Coil Motor:VCM)、形状记忆合金驱动器(Shape of Memory Alloy Actuator:SMA)等。但是，当电磁式马达作为驱动元件被应用于潜望式摄像模组中来实现光学防抖时，其表现却不佳，例如，其结构相对较为复杂，其所提供的驱动力相对较小，其驱动行程相对较小等。也就是，电磁式马达作为驱动元件无法满足潜望式摄像模组对于光学防抖的驱动器的技术要求。As mentioned above, in the existing periscope camera module, the mainstream driving element 100 is an electromagnetic motor, such as a voice coil motor (Voice Coil Motor: VCM), a Shape of Memory Alloy Actuator (Shape of Memory Alloy Actuator) :SMA) etc. However, when an electromagnetic motor is used as a driving element in a periscope camera module to achieve optical image stabilization, its performance is not good. For example, its structure is relatively complex and the driving force provided by it is relatively small. Its driving stroke is relatively small, etc. That is, the electromagnetic motor as a driving element cannot meet the technical requirements of the periscope camera module for the optical image stabilization driver.

具体地，技术要求主要集中于三个方面：第一，相对更大的驱动力；第二，更优的驱动性能(具体地包括：更高精度的驱动控制和更长的驱动行程)；第三，更为简化的结构和更小的尺寸以利于其在潜望式摄像模组的空间布置。Specifically, the technical requirements mainly focus on three aspects: first, relatively larger driving force; second, better driving performance (specifically including: higher-precision driving control and longer driving stroke); Third, a more simplified structure and smaller size facilitate its spatial arrangement in the periscope camera module.

经研究和试验，本申请发明人发现选择采用压电致动器能够满足所述潜望式摄像模组对于驱动器的技术要求，也就是，在本申请实施例中，所述驱动元件被实施为压电致动器100，所述驱动组件100包括被配置为提供用以驱动所述光转折组件12进行枢转的线性作用力的压电致动器100。After research and experimentation, the inventor of the present application found that the selection of piezoelectric actuators can meet the technical requirements of the periscope camera module for the driver, that is, in the embodiment of the present application, the driving element is implemented as Piezoelectric actuator 100, the drive assembly 100 includes a piezoelectric actuator 100 configured to provide a linear force to drive the light turning assembly 12 to pivot.

图4A和图4B图示了根据本申请实施例的所述潜望式摄像模组的所述压电致动器的示意图。如图4A和图4B所示，所述压电致动器100，包括：压电主动部110、可传动地连接于所述压电主动部110的从动轴120，以及，与所述从动轴120紧配的驱动部130，其中，所述驱动部130在所述压电主动部110和所述从动轴120的作用下被配置为驱动光转折组件进行移动。4A and 4B illustrate schematic diagrams of the piezoelectric actuator of the periscope camera module according to an embodiment of the present application. As shown in FIG. 4A and FIG. 4B , the piezoelectric actuator 100 includes: a piezoelectric active part 110 , a driven shaft 120 drivably connected to the piezoelectric active part 110 , and a driven shaft 120 connected to the driven part 110 . The driving part 130 to which the driving shaft 120 is tightly matched, wherein the driving part 130 is configured to drive the light turning component to move under the action of the piezoelectric active part 110 and the driven shaft 120 .

在如图4A和图4B所示意的示例中，所述压电主动部110包括电极板111和叠置于所述电极板111的至少一压电基板。所述压电基板是具有逆压电效应并且根据极化方向和电场方向收缩或膨胀的基板，例如，其可以通过在单晶或者多晶陶瓷、聚合物等在厚度方向上使用基板极化来制成并使用。这里，逆压电效应是指在电介质的极化方向施加电场，电介质在产生电势差时会发生机械变形。In the example shown in FIGS. 4A and 4B , the piezoelectric active part 110 includes an electrode plate 111 and at least one piezoelectric substrate stacked on the electrode plate 111 . The piezoelectric substrate is a substrate that has an inverse piezoelectric effect and shrinks or expands according to the polarization direction and the electric field direction, for example, it can be formed by using substrate polarization in the thickness direction of single crystal or polycrystalline ceramics, polymers, etc. made and used. Here, the inverse piezoelectric effect means that an electric field is applied in the polarization direction of the dielectric, and the dielectric undergoes mechanical deformation when a potential difference is generated.

更具体地，在如图4A和图4B所示意的示例中，所述至少一压电基板，包括第一压电基板112和第二压电基板113，所述电极板111被夹设于所述第一压电基板112和所述第二压电基板113之间。并且，在该示例中，所述压电主动部110进一步包括分别形成于所述第一压电基板112的上表面和下表面的电极层115，以及，分别形成于所述第二压电基板113的上表面和下表面的电极层115，以通过所述电极层115和所述电极板111为所述第一压电基板112和所述第二压电基板113提供脉冲电压。More specifically, in the example shown in FIG. 4A and FIG. 4B , the at least one piezoelectric substrate includes a first piezoelectric substrate 112 and a second piezoelectric substrate 113 , and the electrode plate 111 is sandwiched between the two piezoelectric substrates. between the first piezoelectric substrate 112 and the second piezoelectric substrate 113 . In addition, in this example, the piezoelectric active part 110 further includes electrode layers 115 formed on the upper surface and the lower surface of the first piezoelectric substrate 112, respectively, and electrode layers 115 formed on the second piezoelectric substrate, respectively The electrode layers 115 on the upper and lower surfaces of the 113 , so as to provide the first piezoelectric substrate 112 and the second piezoelectric substrate 113 with a pulse voltage through the electrode layer 115 and the electrode plate 111 .

在该示例中，所述电极板111可以由带有一定弹性的板状元件构成，例如，带有一定弹性的金属板构成。在如图4A和图4B所示意的示例中，所述压电主动部110，进一步包括与所述电极板111电连接的至少一电导通部位114，例如，所述至少一电导通部位114可通过焊接的方式焊接于所述电极板111，或者是所述至少一电导通部位114与所述电极板111一体形成。值得一提的是，当所述电导通部位114的数量为多个时，优选地，所述多个电导通部位114对称地分布于所述电极板111的外表面。In this example, the electrode plate 111 may be composed of a plate-like element with a certain elasticity, for example, a metal plate with a certain elasticity. In the example shown in FIG. 4A and FIG. 4B , the piezoelectric active part 110 further includes at least one electrical conduction part 114 electrically connected to the electrode plate 111 , for example, the at least one electrical conduction part 114 may be It is welded to the electrode plate 111 by welding, or the at least one electrical conduction part 114 is integrally formed with the electrode plate 111 . It is worth mentioning that when the number of the electrical conduction parts 114 is multiple, preferably, the multiple electrical conduction parts 114 are symmetrically distributed on the outer surface of the electrode plate 111 .

在该示例中，所述第一压电基板112和所述第二压电基板113分别通过所述电极层115被附着于所述电极板111的第一侧表面和与所述第一侧表面相对的第二侧表面。例如，在该示例中，所述第一压电基板112和所述第二压电基板113可以与所述电极板111以相互面与面啮合的方式固定，或者，所述第一压电基板112和所述第二压电基板113通过导电银胶被附着于所述电极板111。In this example, the first piezoelectric substrate 112 and the second piezoelectric substrate 113 are attached to the first side surface of the electrode plate 111 and the first side surface of the electrode plate 111 through the electrode layer 115 , respectively. the opposite second side surface. For example, in this example, the first piezoelectric substrate 112 and the second piezoelectric substrate 113 may be fixed to the electrode plate 111 in a surface-to-surface engagement, or the first piezoelectric substrate 112 and the second piezoelectric substrate 113 are attached to the electrode plate 111 by conductive silver glue.

优选地，在该示例中，所述第一压电基板112和所述第二压电基板113的形状的大小与所述电极板111相近或者相一致，从而使得所述压电主动部 110具有更优的振动效率。在该具体示例中，所述第一压电基板112、所述第二压电基板113和所述电极板111为圆形板。Preferably, in this example, the shape and size of the first piezoelectric substrate 112 and the second piezoelectric substrate 113 are similar to or consistent with the electrode plate 111 , so that the piezoelectric active part 110 has Better vibration efficiency. In this specific example, the first piezoelectric substrate 112 , the second piezoelectric substrate 113 and the electrode plate 111 are circular plates.

在如图4A和图4B所示意的示例中，所述从动轴120被固定于所述压电主动部110，例如，通过黏着剂附着于所述压电主动部110的中心。具体地，所述从动轴120可通过黏着剂被附着于所述第一压电基板112的外表面的电极层115上，或者，通过黏着剂被嵌套地附着于所述第一压电基板112的外表面的电极层115的中心孔内，或者，所述第一压电基板112具有一中心孔，所述从动轴120进一步被嵌合于所述第一压电基板112的中心孔内，或者，所述压电主动部110具有贯穿于其上下表面的中心孔，所述从动轴120通过黏着剂被被嵌合于所述压电主动部110的中心孔内。在具体实施中，所述从动轴120可被实施为碳棒。所述从动轴120的截面形状为圆形或者多边形，优选为圆形。In the example illustrated in FIGS. 4A and 4B , the driven shaft 120 is fixed to the piezoelectric active part 110 , for example, attached to the center of the piezoelectric active part 110 by an adhesive. Specifically, the driven shaft 120 may be attached to the electrode layer 115 on the outer surface of the first piezoelectric substrate 112 through an adhesive, or may be nestedly attached to the first piezoelectric substrate through an adhesive In the center hole of the electrode layer 115 on the outer surface of the substrate 112 , or the first piezoelectric substrate 112 has a center hole, the driven shaft 120 is further fitted in the center of the first piezoelectric substrate 112 Alternatively, the piezoelectric active part 110 has a central hole penetrating the upper and lower surfaces thereof, and the driven shaft 120 is fitted into the central hole of the piezoelectric active part 110 by an adhesive. In a specific implementation, the driven shaft 120 may be implemented as a carbon rod. The cross-sectional shape of the driven shaft 120 is a circle or a polygon, preferably a circle.

在如图4A和图4B所示意的示例中，所述驱动部130与所述从动轴120通过摩擦配合，以使得所述驱动部130可活动地紧配于所述从动轴120上。在具体实施中，所述驱动部130可被实施为夹持所述从动轴120的夹持机构，其中，优选地，所述夹持机构可以是夹持力可调整的夹持机构，或者，部分或全部由弹性材料制成的夹持机构。In the example shown in FIG. 4A and FIG. 4B , the driving part 130 and the driven shaft 120 are frictionally fitted, so that the driving part 130 is movably fitted on the driven shaft 120 . In a specific implementation, the driving part 130 may be implemented as a clamping mechanism for clamping the driven shaft 120 , wherein, preferably, the clamping mechanism may be a clamping mechanism with adjustable clamping force, or , a clamping mechanism partially or wholly made of elastic material.

在如图4A和图4B所示意的示例中，在所述压电主动部110的表面暴露的所述电极层115电连接于电源控制部位116的正电极117，所述电极板111通过所述电导通部位114被电连接于所述电源控制部位116的负电极118，这样，当所述电源控制部位116给所述电极层115和所述电极板111反复施加脉冲电压时，所述第一压电基板112和所述第二压电基板113在逆压电效应的作用下朝着一个方向变形，并在所述电极板111的弹性作用下快速恢复为平板状。在上述形变过程中，所述从动轴120在其所设定的轴方向上往返移动，而由于所述驱动部130与所述从动轴120之间为摩擦配合，因此，当所述压电主动部110向着一个方向变形时，所述驱动部130和所述从动轴120共同移动，而当所述压电主动部110快速地恢复为原状时，所述从动轴120也逆向移动而所述驱动部130则由于惯性作用无法跟随所述从动轴120的动作而未能返回原来的位置，只能停留在所在的位置。因此，在一个形变过程中，所述驱动部130的位置发生改变，相应地，通过反复施加脉冲电压，可重复上述移动，从而使得所述驱动部130被移动至目标位置。In the example shown in FIGS. 4A and 4B , the electrode layer 115 exposed on the surface of the piezoelectric active part 110 is electrically connected to the positive electrode 117 of the power control part 116 , and the electrode plate 111 passes through the The electrical conduction part 114 is electrically connected to the negative electrode 118 of the power supply control part 116, so that when the power supply control part 116 repeatedly applies a pulse voltage to the electrode layer 115 and the electrode plate 111, the first The piezoelectric substrate 112 and the second piezoelectric substrate 113 are deformed in one direction under the action of the inverse piezoelectric effect, and quickly return to a flat shape under the elastic action of the electrode plate 111 . During the above deformation process, the driven shaft 120 moves back and forth in the set axial direction, and since the driving part 130 and the driven shaft 120 are friction fit, when the pressure When the electro-active part 110 is deformed in one direction, the driving part 130 and the driven shaft 120 move together, and when the piezoelectric active part 110 quickly returns to its original state, the driven shaft 120 also moves in the opposite direction The driving part 130 cannot follow the action of the driven shaft 120 due to the inertial effect and cannot return to the original position, and can only stay at the position where it is. Therefore, in a deformation process, the position of the driving part 130 changes, and accordingly, the above-mentioned movement can be repeated by repeatedly applying the pulse voltage, so that the driving part 130 is moved to the target position.

图5A图示了根据本申请实施例的所述压电致动器的另一个实施例的示意图之一。图5B图示了根据本申请实施例的所述压电致动器的另一个实施例的示意图之二。如图5A和5B所示，在该示例中，所述压电致动器100包括：压电主动部110、可传动地连接于所述压电主动部110的从动轴120，以及，与所述从动轴120紧配的驱动部130，其中，所述驱动部130在所述压电主动部110和所述从动轴120的作用下被配置为驱动所述光转折组件进行移动。FIG. 5A illustrates one of the schematic diagrams of another embodiment of the piezoelectric actuator according to an embodiment of the present application. FIG. 5B illustrates a second schematic diagram of another embodiment of the piezoelectric actuator according to an embodiment of the present application. As shown in FIGS. 5A and 5B , in this example, the piezoelectric actuator 100 includes: a piezoelectric active part 110 , a driven shaft 120 drivably connected to the piezoelectric active part 110 , and, with The driving part 130 to which the driven shaft 120 is tightly matched, wherein the driving part 130 is configured to drive the light-reflecting component to move under the action of the piezoelectric active part 110 and the driven shaft 120 .

如图5A和5B所示，在该示例中，所述压电主动部110包括压电元件111A，所述压电元件111A具有层叠结构。具体地，如图5A所示，所述压电元件111A包括多个压电伸缩件112A和多个电极113A，所述多个压电伸缩件112A和所述多个电极113A之间交替层叠设置。特别地，通过如上所述的层叠结构，所述压电元件111A即便在施加了很小的电场的情况下，也可获得相对较大的形变量。As shown in FIGS. 5A and 5B , in this example, the piezoelectric active part 110 includes a piezoelectric element 111A, and the piezoelectric element 111A has a laminated structure. Specifically, as shown in FIG. 5A , the piezoelectric element 111A includes a plurality of piezoelectric stretching members 112A and a plurality of electrodes 113A, and the plurality of piezoelectric stretching members 112A and the plurality of electrodes 113A are arranged alternately in layers. . In particular, with the laminated structure as described above, the piezoelectric element 111A can obtain a relatively large amount of deformation even when a small electric field is applied.

在该示例中，为了便于说明，将交替地夹着多个压电伸缩件112A而成的电极113A定义为内部电极，而将配设于所述压电伸缩件112A的表面且位于所述压电元件111A的上表面和下表面的电极113A分别定义为上电极和下电极，同时，将配设于所述压电伸缩件112A的表面且位于所述压电元件111A的侧表面的电极113A定义为侧电极。相应地，在多层的情况下，相同极性的电极113A通过所述侧电极进行电连接。In this example, for the convenience of description, the electrodes 113A that sandwich the plurality of piezoelectric elastic elements 112A alternately are defined as internal electrodes, and the electrodes 113A are arranged on the surface of the piezoelectric elastic elements 112A and located in the piezoelectric elastic elements 112A. The electrodes 113A on the upper surface and the lower surface of the electric element 111A are defined as the upper electrode and the lower electrode, respectively, and the electrode 113A arranged on the surface of the piezoelectric stretchable member 112A and located on the side surface of the piezoelectric element 111A is Defined as side electrodes. Accordingly, in the case of multiple layers, the electrodes 113A of the same polarity are electrically connected through the side electrodes.

如图5B所示，在该示例中，所述从动轴120具有圆柱形状并通过黏着剂附着于所述压电元件111A的上表面的中间区域，以使得所述从动轴120接合于所述压电元件111A。当然，在本申请其他示例中，所述从动轴120的形状也可以做出调整，对此，并不为本申请所局限。As shown in FIG. 5B , in this example, the driven shaft 120 has a cylindrical shape and is attached to the middle area of the upper surface of the piezoelectric element 111A by an adhesive, so that the driven shaft 120 is joined to the The piezoelectric element 111A is described above. Of course, in other examples of the present application, the shape of the driven shaft 120 can also be adjusted, which is not limited by the present application.

并且，所述从动轴120由以“碳、重金属、重金属的碳化物、重金属的硼化物以及重金属的氮化物”中的任一为主要成分的材料制成，所述压电元件111A具有长方体形状，其具有分别沿着相互正交的X轴、Y轴以及Z轴的边。在该示例中，所述压电元件111A的X轴方向长度为1mm，所述压电元件111A的Y轴方向长度为1mm，所述压电元件111A的Z轴方向长度(高度)为2mm。In addition, the driven shaft 120 is made of a material containing any one of “carbon, heavy metals, carbides of heavy metals, borides of heavy metals, and nitrides of heavy metals” as a main component, and the piezoelectric element 111A has a rectangular parallelepiped. A shape that has sides along mutually orthogonal X, Y, and Z axes, respectively. In this example, the length of the piezoelectric element 111A in the X-axis direction is 1 mm, the length of the piezoelectric element 111A in the Y-axis direction is 1 mm, and the length (height) of the piezoelectric element 111A in the Z-axis direction is 2 mm.

值得一提的是，相较于传统的电磁式驱动器，图5A和图5B所示意的所述压电致动器100具有体积小、推力大，精度高的优势。并且，相较于图 4A和图4B所示意的压电致动器100，图5A和图5B所示意的所述压电致动器100的所述压电主动部110具有相对更小的截面尺寸，适于在空间紧凑的模组中使用，但是其厚度尺寸相对较达，同时，所述压电元件111A的内部结构相对较为复杂。It is worth mentioning that, compared with the traditional electromagnetic driver, the piezoelectric actuator 100 shown in FIGS. 5A and 5B has the advantages of small size, large thrust, and high precision. Moreover, compared with the piezoelectric actuator 100 illustrated in FIGS. 4A and 4B , the piezoelectric active portion 110 of the piezoelectric actuator 100 illustrated in FIGS. 5A and 5B has a relatively smaller cross section The size is suitable for use in a module with compact space, but its thickness is relatively large, and at the same time, the internal structure of the piezoelectric element 111A is relatively complicated.

相应地，根据本申请实施例的所述压电致动器100能够提供相对较高的驱动力。更明确地，本申请所选择的所述压电致动器100能够提供的线性驱动力大小为0.6N至2N，其足以驱动重量大于100mg的部件。Accordingly, the piezoelectric actuator 100 according to the embodiment of the present application can provide a relatively high driving force. More specifically, the piezoelectric actuator 100 selected in this application can provide a linear driving force in the range of 0.6N to 2N, which is sufficient to drive a component with a weight greater than 100mg.

并且，除了能够提供相对较大的驱动力以外，相较于传统的电磁式马达方案和记忆合金马达方案，所述压电致动器100还具有其他优势，包括但不限于：尺寸相对较小(具有细长状)，响应精度更佳，结构相对更为简单，驱动控制相对更为简单，产品一致性高，没有电磁干扰，具有相对更大的行程，稳定时间短，重量相对较小等。Moreover, in addition to being able to provide a relatively large driving force, the piezoelectric actuator 100 also has other advantages compared to the traditional electromagnetic motor solution and memory alloy motor solution, including but not limited to: a relatively small size (with slender shape), better response accuracy, relatively simpler structure, relatively simpler drive control, high product consistency, no electromagnetic interference, relatively larger stroke, short stabilization time, relatively small weight, etc. .

具体来说，所述潜望式摄像模组需要其所配置的驱动器具有驱动行程较长且需要保证较好的对准精度等特征。在现有的音圈马达方案中，为了保证运动线性度需要额外设计导杆或滚珠导轨，同时需要在镜头侧部适配大尺寸的驱动磁铁/线圈等，同时需要设置滚珠、弹片、悬丝等辅助定位装置，为容纳较多的部件、保障结构强度和预留结构间隙，往往导致模组横向尺寸偏大，且结构设计复杂，模组重量较重。而记忆合金马达方案，受限于记忆合金方案同比例能够提供的行程相对较少，同时存在潜在断线等可靠性风险。Specifically, the periscope camera module requires that the driver configured with the periscope camera module has the characteristics of a long driving stroke and good alignment accuracy. In the existing voice coil motor solution, in order to ensure the linearity of motion, additional guide rods or ball guides need to be designed, and large-sized driving magnets/coils need to be adapted to the side of the lens, and balls, shrapnel, and suspension wires need to be installed. Other auxiliary positioning devices, in order to accommodate more components, ensure structural strength and reserve structural gaps, often lead to large lateral dimensions of the module, complex structural design, and heavy module weight. The memory alloy motor solution is limited by the relatively small stroke that the memory alloy solution can provide in the same proportion, and there are reliability risks such as potential disconnection.

而所述压电致动器100具有相对较为简单的结构，组装结构更加简单，另外其压电主动部110、从动轴120和驱动部130等主动元件大小与运动行程大小基本无关，因此在光学变焦类产品中所述压电致动器100可以实现大推力、小尺寸，小重量等优势，同时匹配更大行程或更重器件重量进行设计，设计中的集成度也更高。The piezoelectric actuator 100 has a relatively simple structure, and the assembly structure is simpler. In addition, the size of the piezoelectric active part 110 , the driven shaft 120 and the driving part 130 and other active elements are basically independent of the size of the motion stroke, so in the In optical zoom products, the piezoelectric actuator 100 can achieve advantages such as large thrust, small size, and low weight, and at the same time, it can be designed to match the larger stroke or heavier device weight, and the integration degree in the design is also higher.

进一步地，所述压电致动器100利用振动时的摩擦力和惯性，以摩擦接触的方式推动待推动对象进行微米级运动，其相较于电磁式方案非接触的方式驱动待推动对象需要依靠电磁力抵消重力，摩擦力的方式，具有更大推力，更大位移和更低功耗的优势，同时控制精度更高，可实现高精度连续变焦。而且在存在多个马达机构时，所述压电致动器100不存在磁铁线圈结构，无磁干扰问题。另外，所述压电致动器100可依靠部件之间的摩擦力自锁，因此可以降低所述潜望式摄像模组在进行光学变焦时的晃动异响。Further, the piezoelectric actuator 100 uses the friction force and inertia during vibration to push the object to be pushed to perform micron-scale motion in a frictional contact manner, which requires non-contact driving of the object to be pushed compared to the electromagnetic solution. Relying on the electromagnetic force to offset gravity and friction, it has the advantages of greater thrust, greater displacement and lower power consumption, and at the same time, the control accuracy is higher, and high-precision continuous zoom can be achieved. Moreover, when there are multiple motor mechanisms, the piezoelectric actuator 100 does not have a magnet coil structure, so there is no problem of magnetic interference. In addition, the piezoelectric actuator 100 can be self-locked by the friction between the components, so the abnormal shaking noise of the periscope camera module during optical zooming can be reduced.

在选择以所述压电致动器100作为驱动元件来驱动所述光转折组件10进行光学防抖时，所述压电致动器100所提供的驱动力为线性作用力(这里，线性作用力表示所述作用力的方向是沿着直线的)，也就是，所述压电致动器100无法直接带动所述光转折组件10旋转；因此，需采用合理的驱动方向转化方案以解决所述光转折元件12驱动方向的转化问题。When the piezoelectric actuator 100 is selected as the driving element to drive the optical deflection assembly 10 to perform optical anti-shake, the driving force provided by the piezoelectric actuator 100 is a linear force (here, linear action The force indicates that the direction of the acting force is along a straight line), that is, the piezoelectric actuator 100 cannot directly drive the light turning assembly 10 to rotate; therefore, a reasonable driving direction conversion scheme needs to be adopted to solve all the problems. The conversion problem of the driving direction of the light turning element 12 is described.

具体地，在本申请实施例中，为了使得所述压电致动器100所提供的线性作用力能够驱动所述光转折组件10进行旋转，选择将所述光转折组件10进行可枢转地安装。具体地，如图1所示，在本申请实施例中，所述潜望式摄像模组进一步包括用于安装所述光转折组件10的壳体50，其中，所述光转折组件10被可枢转地安装于所述壳体50内。更具体地，在本申请实施例中，所述载体11包括载体主体111和突出地自所述载体主体111延伸的枢转轴112，所述枢转轴112被可枢转地安装于所述壳体50上，以使得所述光转折组件10能够绕着所述枢转轴112进行枢转。Specifically, in the embodiment of the present application, in order to enable the linear force provided by the piezoelectric actuator 100 to drive the light deflection assembly 10 to rotate, the light deflection assembly 10 is selected to be pivotable. Install. Specifically, as shown in FIG. 1 , in the embodiment of the present application, the periscope camera module further includes a housing 50 for installing the light deflection assembly 10 , wherein the light deflection assembly 10 is adjustable Mounted pivotally within the housing 50 . More specifically, in the embodiment of the present application, the carrier 11 includes a carrier body 111 and a pivot shaft 112 protrudingly extending from the carrier body 111 , and the pivot shaft 112 is pivotally mounted to the housing 50 , so that the light turning assembly 10 can pivot around the pivot shaft 112 .

值得一提的是，在如图1所示意的示例中，所述枢转轴112形成于所述载体主体111的位置对应于所述光转折组件10的重心。应可以理解，在本申请其他示例中，所述枢转轴112还可以被设置与所述载体主体111的其他位置，例如，所述枢转轴112被设置于所述载体主体111的上部或下部区域(未有图示意)。也就是，在本申请实施例中，所述枢转轴112的设置位置并不为本申请所局限。It is worth mentioning that, in the example shown in FIG. 1 , the position where the pivot shaft 112 is formed on the carrier body 111 corresponds to the center of gravity of the light turning assembly 10 . It should be understood that in other examples of the present application, the pivot shaft 112 may also be arranged at other positions of the carrier body 111 , for example, the pivot shaft 112 is arranged in the upper or lower region of the carrier body 111 (not pictured). That is, in the embodiment of the present application, the setting position of the pivot shaft 112 is not limited by the present application.

还值得一提的是，在本申请中，所述枢转轴112的形状也并不为本申请所局限，其可被实施为“一”字形枢转轴，也可以被实施为“L”型或者“Z”型枢转轴等。It is also worth mentioning that, in the present application, the shape of the pivot shaft 112 is not limited by the present application, and it can be implemented as a "one"-shaped pivot shaft, or can be implemented as an "L" shape or "Z" type pivot shaft, etc.

具体地，在本申请示例中，所述驱动组件40还包括可传动地连接所述光转折组件10和所述压电制动器100的传动机构41，所述传动机构41被配置为将所述线性作用力转化为作用于所述光转折组件10的转动作用力，以驱动所述光转折组件10绕着其枢转轴112进行枢转，从而进行光学防抖调整，也就是，通过这样的方式，解决了压电制动器100驱动方向的转化问题。Specifically, in the example of the present application, the driving assembly 40 further includes a transmission mechanism 41 that drivably connects the light turning assembly 10 and the piezoelectric actuator 100 , and the transmission mechanism 41 is configured to drive the linear The acting force is converted into a rotational force acting on the light deflection assembly 10 to drive the light deflection assembly 10 to pivot around its pivot axis 112, so as to perform optical image stabilization adjustment, that is, in this way, The problem of converting the driving direction of the piezoelectric brake 100 is solved.

特别地，所述传动机构41具有第一端410和相对与所述第一端410的第二端420，所述传动机构41的第一端410连接于所述压电制动器100的驱动部130，所述传动机构41的第二端420连接于所述枢转轴112。也就是，所述压电制动器100的驱动部130所形成的线性作用力自所述第一端410经所述传动机构41转化为转动作用力后传动至所述第二端420，并作用于所述枢转轴112以驱动所述光转折组件10绕着所述枢转轴112进行枢转，从而进行光学防抖调整。In particular, the transmission mechanism 41 has a first end 410 and a second end 420 opposite to the first end 410 , and the first end 410 of the transmission mechanism 41 is connected to the driving part 130 of the piezoelectric brake 100 , the second end 420 of the transmission mechanism 41 is connected to the pivot shaft 112 . That is, the linear force formed by the driving part 130 of the piezoelectric brake 100 is converted from the first end 410 to the rotational force through the transmission mechanism 41 and then transmitted to the second end 420, and acts on the second end 420. The pivot shaft 112 drives the light turning assembly 10 to pivot around the pivot shaft 112 , so as to perform optical anti-shake adjustment.

更具体地，如图1所示，在本申请实施例中，所述传动机构包括第一连杆411和铰接于所述第一连杆411的第二连杆412，其中，所述第一连杆411的自由端连接于所述压电致动器100的驱动部130，所述第二连杆412的自由端连接于所述枢转轴112。通过多连杆的方式设置，在所述压电制动器100进行线性运动时，所述第一连杆111被驱动的同时通过铰接处驱动所述第二连杆412绕着所述枢转轴112转动，有效地将线性作用力转化为转动作用力。More specifically, as shown in FIG. 1 , in the embodiment of the present application, the transmission mechanism includes a first link 411 and a second link 412 hinged to the first link 411 , wherein the first link 411 The free end of the link 411 is connected to the driving part 130 of the piezoelectric actuator 100 , and the free end of the second link 412 is connected to the pivot shaft 112 . By means of multi-link arrangement, when the piezoelectric brake 100 performs linear motion, the first link 111 is driven and the second link 412 is driven to rotate around the pivot shaft 112 through the hinge joint at the same time , which effectively converts linear force into rotational force.

进一步地，在如图1所示意的潜望式摄像模组中，所述载体主体111具有弧形面1110，相应地，所述壳体50具有凹陷地形成于其内侧面的弧形腔51，所述载体主体111以其弧形面1111被可枢转地嵌合于所述弧形腔51的方式被可枢转地安装于所述壳体50的所述弧形腔51内，所述载体11还包括突出地自所述载体主体111的侧表面延伸的驱动轴113。Further, in the periscope camera module as shown in FIG. 1 , the carrier body 111 has an arc-shaped surface 1110 , and correspondingly, the housing 50 has an arc-shaped cavity 51 recessed on the inner surface thereof. , the carrier main body 111 is pivotally installed in the arc-shaped cavity 51 of the housing 50 in a way that its arc-shaped surface 1111 is pivotably fitted into the arc-shaped cavity 51 , so The carrier 11 further includes a drive shaft 113 protrudingly extending from the side surface of the carrier body 111 .

优选地，所述弧形面1111的形状与所述弧形腔52的内侧面的形状相适配，更优选地，所述弧形面1111设有第一中心轴，所述弧形腔设有第二中心轴，所述第一中心轴与所述第二中心轴重合，以使得所述弧形面和所述弧形腔的配合效果最好。Preferably, the shape of the arc-shaped surface 1111 is adapted to the shape of the inner surface of the arc-shaped cavity 52 , more preferably, the arc-shaped surface 1111 is provided with a first central axis, and the arc-shaped cavity is provided with There is a second central axis, and the first central axis coincides with the second central axis, so that the matching effect between the arc-shaped surface and the arc-shaped cavity is the best.

特别地，在本申请一些示例中，如图1所示，所述驱动轴112形成于所述载体主体111的侧表面的位置对应于所述第一中心轴，也就是，所述驱动轴113为所述第一中心轴，所述驱动轴113与所述枢转轴112重合。应理解地，所述驱动轴113可不对应于所述第一中心轴，即所述驱动轴和所述枢转轴相互独立，所述传动机构41可驱动所述驱动轴113运动以使所述光转折组件10绕着所述枢转轴112转动，在此并不为本申请所局限。In particular, in some examples of the present application, as shown in FIG. 1 , the position where the driving shaft 112 is formed on the side surface of the carrier body 111 corresponds to the first central axis, that is, the driving shaft 113 As the first central axis, the drive shaft 113 coincides with the pivot shaft 112 . It should be understood that the drive shaft 113 may not correspond to the first central axis, that is, the drive shaft and the pivot shaft are independent of each other, and the transmission mechanism 41 may drive the drive shaft 113 to move to make the light The turning assembly 10 rotates around the pivot shaft 112 , which is not limited by the present application.

图6图示了根据本申请实施例的所述潜望式摄像模组的光转折组件10的***示意图。其中，所述光转折组件10进一步包括设置于所述弧形腔51内的弧形导向结构13，所述弧形导向结构13被配置为引导所述光转折组件10沿着所述弧形导向结构13所设定的导向路线转动。其中，所述弧形导向结构13包括凹陷地形成于所述弧形面1110的至少一弧形导槽131和安装于所述弧形导槽131内的至少一滚珠132，所述弧形导槽131能够为所述光转折组件10的转动提供导向作用，所述滚珠132能够减小所述载体主体111 转动时所述弧形面1110和所述弧形腔52内侧面之间的摩擦，使得光学防抖调整更加顺滑。FIG. 6 illustrates an exploded schematic view of the light deflection assembly 10 of the periscope camera module according to an embodiment of the present application. Wherein, the light deflection assembly 10 further includes an arc guide structure 13 disposed in the arc cavity 51, and the arc guide structure 13 is configured to guide the light deflection assembly 10 along the arc guide The guide route set by the structure 13 rotates. The arc-shaped guide structure 13 includes at least one arc-shaped guide groove 131 recessed on the arc-shaped surface 1110 and at least one ball 132 installed in the arc-shaped guide groove 131 . The groove 131 can provide a guiding function for the rotation of the light turning assembly 10, and the ball 132 can reduce the friction between the arc-shaped surface 1110 and the inner side surface of the arc-shaped cavity 52 when the carrier body 111 rotates, Makes OIS adjustment smoother.

当然，在本申请其他示例中，所述弧形导槽131凹陷地形成于所述弧形腔52的内侧面，所述滚珠132被安装于所述弧形导槽131内，如图7所示。Of course, in other examples of the present application, the arc-shaped guide groove 131 is concavely formed on the inner side surface of the arc-shaped cavity 52, and the ball 132 is installed in the arc-shaped guide groove 131, as shown in FIG. 7 . Show.

特别地，在本申请一些示例中，所述至少一弧形导槽131包括第一弧形导槽1311和第二弧形导槽1312，所述第一弧形导槽1311平行于所述第二弧形导槽1312，通过这样的方式设置，使得所述光转折组件10的转动更加稳定，从而提高了光学防抖调整的精度，应理解地，所述弧形导槽131的数量仅为示例，可以设置更多的平行弧形导槽，并不为本申请所局限。Particularly, in some examples of the present application, the at least one arc-shaped guide groove 131 includes a first arc-shaped guide groove 1311 and a second arc-shaped guide groove 1312, and the first arc-shaped guide groove 1311 is parallel to the first arc-shaped guide groove 1311. The two arc-shaped guide grooves 1312 are arranged in this way, so that the rotation of the light turning assembly 10 is more stable, thereby improving the accuracy of optical anti-shake adjustment. It should be understood that the number of the arc-shaped guide grooves 131 is only For example, more parallel arc guide grooves may be provided, which is not limited by the present application.

如图8所示，本发明还提供一电子设备200，所述电子设备200包括一电子设备本体210和如上所述潜望式摄像模组220，所述潜望式摄像模组220组装于所述电子设备本体210，为所述电子设备200提供图像采集功能。As shown in FIG. 8 , the present invention further provides an electronic device 200, the electronic device 200 includes an electronic device body 210 and the periscope camera module 220 as described above, and the periscope camera module 220 is assembled in the The electronic device body 210 provides an image capture function for the electronic device 200 .

综上，基于本申请实施例的所述潜望式摄像模组被阐明，其中，所述潜望式摄像模组采用压电致动器作为驱动器来枢转光转折组件以实现光学防抖，其不仅能够提供足够大的驱动力，提供精度更高和行程更长的驱动性能，而且，通过采用传动机构有效地将所述压电制动器所产生的线性作用力转化为旋转作用力，以满足所述潜望式摄像模组的光学防抖的需求。In summary, the periscope camera module based on the embodiments of the present application is clarified, wherein the periscope camera module adopts a piezoelectric actuator as a driver to pivot the light turning component to realize optical image stabilization, It can not only provide a large enough driving force to provide driving performance with higher precision and longer stroke, but also effectively convert the linear force generated by the piezoelectric brake into a rotational force by using a transmission mechanism to meet the Requirements for optical image stabilization of the periscope camera module.

本领域的技术人员应理解，上述描述及附图中所示的本发明的实施例只作为举例而并不限制本发明。本发明的目的已经完整并有效地实现。本发明的功能及结构原理已在实施例中展示和说明，在没有背离所述原理下，本发明的实施方式可以有任何变形或修改。It should be understood by those skilled in the art that the embodiments of the present invention shown in the above description and the accompanying drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention may be modified or modified in any way without departing from the principles.

Claims

一种潜望式摄像模组，其特征在于，包括：A periscope camera module, comprising:

壳体；case;

被可枢转地安装于所述壳体内的光转折组件，其中，所述光转折组件，包括载体和被安装于所述载体的光转折元件，所述光转折元件被配置为对来自被摄目标的成像光线进行转折；A light turning assembly pivotally mounted in the housing, wherein the light turning assembly includes a carrier and a light turning element mounted on the carrier, the light turning element The imaging light of the target is turned;

被保持于所述光转折组件的光转折路径上的透镜组；a lens group held on the light turning path of the light turning assembly;

被保持于所述透镜组的出光路径上的感光组件，包括线路板和电连接于所述线路板的感光芯片；以及The photosensitive component held on the light exit path of the lens group includes a circuit board and a photosensitive chip electrically connected to the circuit board; and

驱动组件，其中，所述驱动组件包括压电致动器和可传动地连接所述光转折组件和所述压电致动器的传动机构，其中，所述压电致动器被配置为提供线性作用力于所述传动机构，所述传动机构被配置为将所述线性作用力转化为作用于所述光转折组件的转动作用力，以驱动所述光转折组件进行枢转从而进行光学防抖。A drive assembly, wherein the drive assembly includes a piezoelectric actuator and a transmission mechanism drivably connecting the light turning assembly and the piezoelectric actuator, wherein the piezoelectric actuator is configured to provide A linear force is applied to the transmission mechanism, and the transmission mechanism is configured to convert the linear force into a rotational force acting on the light-returning assembly, so as to drive the light-returning assembly to pivot for optical protection. shake.
根据权利要求1所述的潜望式摄像模组，其中，所述压电致动器包括压电主动部、自所述压电主动部延伸的从动轴以及紧配于所述从动轴的驱动部，其中，所述驱动部在所述压电主动部和所述从动轴的作用下被配置为提供沿着所述从动轴所设定的方向的线性作用力。The periscope camera module according to claim 1, wherein the piezoelectric actuator comprises a piezoelectric active part, a driven shaft extending from the piezoelectric active part, and a driven shaft that is tightly fitted to the driven shaft The driving part, wherein the driving part is configured to provide a linear force along the direction set by the driven shaft under the action of the piezoelectric active part and the driven shaft.
根据权利要求2所述的潜望式摄像模组，所述载体包括载体主体和突出地自所述载体主体延伸的枢转轴，所述枢转轴被可枢转地安装于所述壳体，以使得所述光转折组件能够绕着所述枢转轴进行枢转。The periscope camera module of claim 2, the carrier comprising a carrier body and a pivot shaft protrudingly extending from the carrier body, the pivot shaft being pivotally mounted on the housing to The light turning assembly is enabled to pivot about the pivot axis.
根据权利要求3所述的潜望式摄像模组，其中，所述枢转轴形成于所述载体主体的位置对应于所述光转折组件的重心。The periscope camera module according to claim 3, wherein the position of the pivot shaft formed on the carrier body corresponds to the center of gravity of the light turning component.
根据权利要求3所述的潜望式摄像模组，其中，所述传动机构具有第一端和相对于所述第一端的第二端，所述传动机构的第一端连接于所述压电致动器的驱动部，所述传动机构的第二端连接于所述枢转轴。The periscope camera module according to claim 3, wherein the transmission mechanism has a first end and a second end opposite to the first end, and the first end of the transmission mechanism is connected to the pressure The driving part of the electric actuator, the second end of the transmission mechanism is connected to the pivot shaft.
根据权利要求3所述的潜望式摄像模组，其中，所述传动机构包括第一连杆和铰接于所述第一连杆的第二连杆，其中，所述第一连杆的自由端连接于所述压电致动器的驱动部，所述第二连杆的自由端连接于所述枢转轴。The periscope camera module according to claim 3, wherein the transmission mechanism comprises a first link and a second link hinged to the first link, wherein the free movement of the first link The end is connected to the driving part of the piezoelectric actuator, and the free end of the second link is connected to the pivot shaft.
根据权利要求2所述的潜望式摄像模组，其中，所述载体包括具有弧形面的载体主体，所述壳体具有凹陷地形成于其内侧面的弧形腔，所述载体主体以其弧形面被可枢转地嵌合于所述弧形腔的方式被可枢转地安装于所述壳体的所述弧形腔内，所述载体还包括突出地自所述载体主体的侧表面延伸的驱动轴。The periscope camera module according to claim 2, wherein the carrier comprises a carrier body having an arc-shaped surface, the housing has an arc-shaped cavity concavely formed on the inner side thereof, and the carrier body is formed with an arc-shaped cavity. The arc-shaped surface is pivotally mounted in the arc-shaped cavity of the housing in a manner that the arc-shaped surface is pivotally fitted into the arc-shaped cavity, and the carrier further includes a body protruding from the carrier body. The drive shaft extends from the side surface.
根据权利要求7所述的潜望式摄像模组，其中，所述弧形面的形状与所述弧形腔的内侧面的形状相适配。The periscope camera module according to claim 7, wherein the shape of the arc-shaped surface is adapted to the shape of the inner side surface of the arc-shaped cavity.
根据权利要求8所述的潜望式摄像模组，其中，所述弧形面设有第一中心轴，所述弧形腔设有第二中心轴，所述第一中心轴与所述第二中心轴重合。The periscope camera module according to claim 8, wherein the arc-shaped surface is provided with a first central axis, the arc-shaped cavity is provided with a second central axis, and the first central axis is connected with the first central axis. The two central axes coincide.
根据权利要求9所述的潜望式摄像模组，其中，所述光转折组件进一步包括设置于所述弧形腔内的弧形导向结构，所述弧形导向结构被配置为引导所述光转折组件沿着所述弧形导向结构所设定的导向路线转动。9. The periscope camera module of claim 9, wherein the light turning assembly further comprises an arc guide structure disposed in the arc cavity, the arc guide structure being configured to guide the light The turning assembly rotates along the guiding route set by the arc-shaped guiding structure.
根据权利要求10所述的潜望式摄像模组，其中，所述弧形导向结构包括凹陷地形成于所述弧形面的至少一弧形导槽和安装于所述弧形导槽内的至少一滚珠。The periscope camera module according to claim 10, wherein the arc-shaped guide structure comprises at least one arc-shaped guide groove recessed on the arc-shaped surface and a At least one ball.
根据权利要求10所述的潜望式摄像模组，其中，所述弧形导向结构包括凹陷地形成于所述弧形腔的内侧面的至少一弧形导槽和安装于所述弧形导槽内的至少一滚珠。The periscope camera module according to claim 10, wherein the arc-shaped guide structure comprises at least one arc-shaped guide groove formed concavely on the inner side surface of the arc-shaped cavity and installed on the arc-shaped guide at least one ball in the groove.
根据权利要求11或12所述的潜望式摄像模组，其中，所述至少一弧形导槽包括第一弧形导槽和第二弧形导槽，所述第一弧形导槽平行于所述第二弧形导槽。The periscope camera module according to claim 11 or 12, wherein the at least one arc-shaped guide groove comprises a first arc-shaped guide groove and a second arc-shaped guide groove, the first arc-shaped guide grooves are parallel in the second arc-shaped guide groove.
根据权利要求9所述的潜望式摄像模组，其中，所述驱动轴形成于所述载体主体的侧表面的位置对应于所述第一中心轴。The periscope camera module of claim 9, wherein a position of the drive shaft formed on the side surface of the carrier body corresponds to the first central axis.
根据权利要求14所述的潜望式摄像模组，其中，所述传动机构具有第一端和相对于所述第一端的第二端，所述传动机构的第一端连接于所述压电致动器的驱动部，所述传动机构的第二端连接于所述枢转轴。The periscope camera module of claim 14, wherein the transmission mechanism has a first end and a second end opposite to the first end, and the first end of the transmission mechanism is connected to the pressure The driving part of the electric actuator, the second end of the transmission mechanism is connected to the pivot shaft.
根据权利要求15所述的潜望式摄像模组，其中，所述传动机构包括第一连杆和铰接于所述第一连杆的第二连杆，其中，所述第一连杆连接于所述压电致动器的驱动部，所述第二连杆连接于所述枢转轴。The periscope camera module of claim 15, wherein the transmission mechanism comprises a first link and a second link hinged to the first link, wherein the first link is connected to In the driving part of the piezoelectric actuator, the second link is connected to the pivot shaft.
根据权利要求2所述的潜望式摄像模组，其中，所述压电致动器所产生的线性作用力的大小为0.6N至2N。The periscope camera module according to claim 2, wherein the magnitude of the linear force generated by the piezoelectric actuator is 0.6N to 2N.
一种电子设备，其特征在于，包括如上所述的潜望式摄像模组。An electronic device is characterized by comprising the above-mentioned periscope camera module.