WO2023071966A1 - 摄像头模组及电子设备 - Google Patents

摄像头模组及电子设备 Download PDF

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Publication number
WO2023071966A1
WO2023071966A1 PCT/CN2022/126923 CN2022126923W WO2023071966A1 WO 2023071966 A1 WO2023071966 A1 WO 2023071966A1 CN 2022126923 W CN2022126923 W CN 2022126923W WO 2023071966 A1 WO2023071966 A1 WO 2023071966A1
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WO
WIPO (PCT)
Prior art keywords
bracket
camera module
elastic member
support
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/126923
Other languages
English (en)
French (fr)
Inventor
高锟林
苏佳奇
张小南
杜显赫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to EP22885843.7A priority Critical patent/EP4425942A4/en
Publication of WO2023071966A1 publication Critical patent/WO2023071966A1/zh
Priority to US18/647,031 priority patent/US20240280780A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

Definitions

  • the application belongs to the technical field of photography, and in particular relates to a camera module and electronic equipment.
  • the subject can be magnified by optical zoom.
  • Optical zoom can magnify the subject by changing the distance between the lens and the subject, so the lens needs to move during zooming.
  • the driving force can be output by the motor, and the driving force can be transmitted to the lens barrel for installing the lens through the transmission mechanism, so as to move the lens.
  • the camera module in the protruding state is easily subject to pressure due to falling, collision, and human pressure. Under the action of this pressure, the lens barrel of the camera module will tend to retract. , but the motor used to output the driving force in the camera module does not work, so the lens barrel cannot be retracted, which will cause the components contained in the camera module to be easily damaged, so the life of this camera module is short.
  • the purpose of the embodiments of the present application is to provide a camera module and an electronic device, which can solve the problem of a short lifespan of the camera module.
  • the embodiment of the present application provides a camera module, which includes a base, a photosensitive chip, a first lens, a first bracket, a driving mechanism and a first elastic member, wherein:
  • the photosensitive chip is set on the base, the first support is movably set on the base, the first support is provided with the first lens, and the edge of the first support is provided with a connecting protrusion department,
  • the drive mechanism includes a drive source, a lead screw and a nut, the drive source is arranged on the base, the drive source is connected to the lead screw, the nut is threadedly engaged with the lead screw, and the first One end of the elastic member is connected to the base, the other end of the first elastic member is connected to the first bracket, and under the action of the first elastic member, the connecting convex part and the nut abut against , the driving mechanism drives the connecting protrusion through the nut to drive the first bracket to move in a first direction, the first direction is a direction approaching or away from the photosensitive chip,
  • the first elastic member can make the first support move in a direction close to the photosensitive chip.
  • an embodiment of the present application provides an electronic device, which includes the aforementioned camera module.
  • the edge of the first bracket is provided with a connecting protrusion.
  • the connecting protrusion abuts against the nut.
  • the driving source drives the nut to move through the screw
  • the nut can pass through the connecting protrusion.
  • the part drives the first bracket to move along the first direction, so as to realize the zooming of the camera module.
  • the first elastic member can be deformed so that the first support moves in a direction close to the photosensitive chip, and the first support and the nut will be separated from each other. Since the first elastic member has a buffering effect, the components included in the camera module are not easily damaged by external force, so the camera module has a longer lifespan.
  • FIG. 1 is a schematic structural diagram of a camera module disclosed in an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of the camera module disclosed in the embodiment of the present application under another viewing angle;
  • FIG. 3 is a schematic diagram of a partial structure of a camera module disclosed in an embodiment of the present application.
  • FIG. 4 is an exploded view of the camera module disclosed in the embodiment of the present application.
  • an embodiment of the present application discloses a camera module, including a base 110 , a photosensitive chip, a first lens 120 , a first bracket 130 , a driving mechanism 140 and a first elastic member 150 .
  • the photosensitive chip is disposed on the base 110 , and the base 110 can also be provided with other components of the camera module besides the photosensitive chip.
  • the first bracket 130 is movably disposed on the base 110 , the first bracket 130 is provided with the first lens 120 , and the edge of the first bracket 130 is provided with a connecting protrusion 131 .
  • the photosensitive chip can be used to receive light passing through the first lens 120, and finally convert the light signal into a digital image signal, so as to obtain an image.
  • the driving mechanism 140 includes a driving source 141, a leading screw 142 and a nut 143, the driving source 141 is arranged on the base 110, the driving source 141 is connected with the leading screw 142, the nut 143 is screwed with the leading screw 142, and one end of the first elastic member 150 is connected to the The base 110 is connected, and the other end of the first elastic member 150 is connected to the first bracket 130 , under the action of the first elastic member 150 , the connecting convex portion 131 of the first bracket 130 abuts against the nut 143 . That is to say, the first bracket 130 and the nut 143 are provided separately, and the two can be abutted together through the connecting protrusion 131 , or can be separated from each other.
  • the base 110 may include a bottom plate, and the bottom plate may be provided with a driving source 141 .
  • the first elastic member 150 can apply force to the connecting convex part 131, so that the connecting convex part 131 presses the nut 143, thereby reducing the thread gap between the nut 143 and the lead screw 142, the gap between the transmission parts and the backstroke Poor, thereby improving the transmission accuracy.
  • the driving source 141 may be a motor, and the motor is connected to an electrical connector 240 to supply power to the driving source 141.
  • the electrical connector 240 may be a wire, a flexible circuit board and other components.
  • the driving mechanism 140 also includes a first gear 144, a second gear 145 and a third gear 146, the first gear 144 is arranged on the output shaft of the driving source 141, and the third gear 146 is arranged on the lead screw 142, The first gear 144 meshes with the third gear 146 through the second gear 145 , so as to realize the transmission between the driving source 141 and the lead screw 142 .
  • the driving source 141 can drive the lead screw 142 to rotate, the lead screw 142 can drive the nut 143 to move along the first direction, and the nut 143 further drives the first bracket 130 to move along the first direction through the connecting convex part 131, thereby realizing the zooming of the camera module, That is, the driving mechanism 140 drives the connecting protrusion 131 through the nut 143 to drive the first bracket 130 to move along the first direction, where the first direction is a direction approaching or away from the photosensitive chip.
  • the driving source 141 and the lead screw 142 may be arranged in parallel, and both extend along the first direction, so that the structure of the driving mechanism 140 is more compact.
  • the nut 143 here does not have to be a standard part, as long as it is provided with an internal thread. This driving mechanism 140 has the advantages of compact structure and high transmission precision.
  • the first elastic member 150 can make the first support 130 move in a direction close to the photosensitive chip.
  • the external force here refers to the force generated due to human pressing, collision, etc., and the external force does not include the driving force applied by the driving mechanism 140 to the first bracket 130.
  • the external force acts on the first elastic member 150, and the first elastic member 150 can be deformed so that the first support 130 moves in a direction close to the photosensitive chip, and the first support 130 and the nut 143 will be separated from each other.
  • the first elastic member 150 can not only realize buffering, but also change the on-off of the transmission path between the nut 143 and the first bracket 130, so as to ensure that the driving force output by the driving mechanism 140 can be transmitted between the nut 143 and the first bracket 130. transmission between the brackets 130 , while ensuring that the external force cannot be transmitted to the nut 143 through the first bracket 130 . Since the first elastic member 150 has a buffering effect, the first bracket 130, the driving mechanism 140 and other components included in the camera module are not easily damaged by external force, so the life of the camera module is longer.
  • the connecting protrusion 131 may be a rectangular solid block structure.
  • the connecting protrusion 131 is provided with a through hole 131 a, and one end of the lead screw 142 passes through the through hole 131 a, and there is a gap between the through hole 131 a and the lead screw 142 .
  • the connecting protrusion 131 can be arranged along the outer peripheral direction of the lead screw 142 , so that when the connecting protrusion 131 and the nut 143 abut against each other, the contact area between the two is larger, which is beneficial to the reliable transmission of force. At the same time, there is a gap between the through hole 131a and the lead screw 142, which can prevent the lead screw 142 from scratching the connecting protrusion 131 when it rotates.
  • the through hole 131a provided by the connecting convex part 131 can be a closed hole arranged around the outer peripheral direction of the lead screw 142. If it is set in this way, when the camera module is assembled, the lead screw 142 can only pass through one side of the connecting convex part 131. Into the through hole 131a, which will affect the installation sequence of the camera module. For this reason, in another embodiment, a notch 131b is provided on the edge of the connecting protrusion 131, and the notch 131b communicates with the through hole 131a.
  • the through hole 131 a is not a closed hole, and the lead screw 142 can enter the through hole 131 a through the gap 131 b, so as to realize the assembly of the first bracket 130 and the lead screw 142 . Since the lead screw 142 can enter the through hole 131 a from one side of the connecting protrusion 131 , this structure does not restrict the installation sequence of the camera module too much, which is more convenient for the assembly of the camera module.
  • the camera module also includes a second bracket 160 and a second lens 170, the second bracket 160 is movably arranged on the first bracket 130, the second bracket 160 is provided with a second lens 170, and the second bracket 160 is provided with a second lens 170.
  • a lens 120 is located between the second lens 170 and the photosensitive chip.
  • a driving component can be provided on the first bracket 130 , and the driving component includes a telescopic cylinder or a coil magnet assembly, and other driving schemes can also be used, as long as it can drive the second bracket 160 to move relative to the first bracket 130 . Since the distance between the second lens 170 and the first lens 120 can be changed, more zoom factors can be obtained by moving the second lens 170 .
  • the number of the first lens 120 and the number of the second lens 170 can be one, or at least two, and the specific number of both can be determined according to the imaging requirements of the camera module, which is not limited in this embodiment of the present application.
  • the camera module further includes a second elastic member 180, the second elastic member 180 is arranged between the first bracket 130 and the second bracket 160, and the driving mechanism 140 drives the first bracket 130 and the second elastic member 180 to The second support 160 moves along the first direction.
  • the second elastic member 180 can make the second support 160 move in a direction close to the photosensitive chip.
  • the first bracket 130 can drive the second bracket 160 to move through the second elastic member 180 while moving, so as to realize the synchronous movement of the first lens 120 and the second lens 170,
  • the second elastic member 180 can deform to buffer the external force and prevent the first bracket 130, the second bracket 160 and other components from being damaged due to the external force.
  • the second elastic member 180 can allow the second bracket 160 to move relative to the first bracket 130, so the distance between the second lens 170 and the first lens 120 can be changed to achieve zooming.
  • This zooming solution has the advantages of simple structure, etc. advantage.
  • the camera module also includes a first guide post 190.
  • a first guide post 190 Among the base 110 and the first support 130, one is provided with a first guide portion 132, and the other is connected to the first guide post 190.
  • the post 190 is fixedly connected, and the first guide portion 132 is slidingly matched with the first guide post 190 .
  • the first guide post 190 can limit the lateral movement of the first bracket 130 , so as to provide guidance for the movement of the first bracket 130 to make it move more smoothly.
  • the first bracket 130 may adopt a ring structure, and further optionally, a plurality of first guide posts 190 may be provided, and the plurality of first guide posts 190 may be evenly spaced along the circumferential direction of the first bracket 130 , and the plurality of first guide posts 190 are matched with the plurality of first guide portions 132 one by one, so as to optimize the guiding effect.
  • the camera module also includes a second guide post 210.
  • a second guide post 210 Among the first support 130 and the second support 160, one is provided with a second guide part 161, and the other is connected with the second guide post 210.
  • the guide post 210 is fixedly connected, and the second guide portion 161 is slidingly matched with the second guide post 210 .
  • the second guide post 210 can limit the lateral movement of the second bracket 160 , so as to provide guidance for the movement of the second bracket 160 to make it move more smoothly.
  • the second bracket 160 may adopt a ring structure, and further optionally, a plurality of second guide posts 210 may be provided, and the plurality of second guide posts 210 may be evenly spaced along the circumference of the second bracket 160 , and the plurality of second guide posts 210 are in one-to-one correspondence with the plurality of second guide portions 161 , so as to optimize the guiding effect.
  • both the above-mentioned first guide portion 132 and the second guide portion 161 can be set as guide holes, thereby increasing the distance between the first guide portion 132 and the second guide post 210 and between the second guide portion 161 and the second guide post 210 contact area for improved guidance.
  • the camera module may further include a sliding bearing 250, and at least one of the first guide post 190 and the second guide post 210 cooperates with the sliding bearing 250, so as to reduce wear during the movement.
  • the connecting position of the first elastic member 150 and the first bracket 130 can be staggered from the position of the first guide post 190. Considering that the first elastic member 150 is prone to lateral deformation, it is necessary to set additional stoppers to limit the first elastic Lateral deformation of the member 150. In other embodiments, the first elastic member 150 can be sleeved on the first guide post 190, so that the lateral deformation of the first elastic member 150 can be limited by the first guide post 190, and there is no need for an additional stopper to The lateral deformation of the first elastic member 150 is limited, so this embodiment can reduce the number of components included in the camera module, thereby reducing the cost of the camera module and reducing the space it occupies.
  • the side of the first bracket 130 facing away from the second bracket 160 is provided with a first extension portion 133
  • the first extension portion 133 is provided with a first guide portion 132
  • the first extension portion 133 is at least partially located on the first Inside the elastic member 150.
  • the first extension part 133 can be used as the connection part between the first bracket 130 and the first elastic member 150 , and after at least part of it extends into the first elastic member 150 , it can assist in limiting the lateral deformation of the first elastic member 150 , so that it is more beneficial to prolong the life of the first elastic member 150 .
  • the size of the first guide part 132 is smaller than that of the first extension part 133, and the size of the first guide post 190 can be reduced accordingly, thereby reducing the size of the camera on the basis of realizing the guide and limiting the lateral deformation of the first elastic member 150.
  • connection position of the second elastic member 180 and the second bracket 160 can be staggered from the position of the second guide part 161, but such setting will cause the structure of the second bracket 160 to be not compact enough, and will increase the structure of the second bracket 160 Design difficulty.
  • the second bracket 160 is provided with a second extension portion 162 on the side facing the first bracket 130
  • the second extension portion 162 is provided with a second guide portion 161
  • the second extension portion 162 can at least partially extend into the second elastic member 180 Inside.
  • the second extension part 162 can be used as the connection part between the second bracket 160 and the second elastic member 180 , after at least part of it extends into the second elastic member 180 , it can assist in limiting the lateral deformation of the second elastic member 180 , so that it is more beneficial to prolong the life of the second elastic member 180 . Since the second extension part 162 and the second guide part 161 are integrated together, the structure of the second bracket 160 is more compact, and its structural design is less difficult, and the second bracket 160 is not easy to occupy the space of other components. The overall layout of the group is more favorable.
  • the size of the second guide part 161 is smaller than that of the second extension part 162, and the size of the second guide post 210 can be reduced accordingly, so that on the basis of realizing the guide and limiting the lateral deformation of the second elastic member 180, the size of the camera head can be reduced.
  • the first extension part 133 is provided with a first counterbore, and the first guide part 132 may be provided on the bottom surface of the first counterbore.
  • the first guide portion 132 only runs through a part of the first extension portion 133 , and the end of the first guide post 190 away from the base 110 can be further extended.
  • the proximity to the base 110 makes the adjustment range of the distance between the first bracket 130 and the second bracket 160 larger, thereby enlarging the zoom range.
  • the second extending portion 162 is provided with a second counterbore, and the second guiding portion 161 may be disposed on the bottom surface of the second counterbore.
  • the second guide portion 161 only runs through a part of the second extension portion 162 , and the end of the second guide post 210 away from the first bracket 130 can be Being closer to the first bracket 130 , the adjustment range of the distance between the first bracket 130 and the second bracket 160 is larger, so as to expand the zoom range.
  • the camera module also includes a position detection device 220, and the position detection device 220 includes a magnetic part 221 and a detection element.
  • the position detection device 220 includes a magnetic part 221 and a detection element.
  • the base 110 and the first bracket 130 one is provided with a magnetic part 221, and the other is provided with a magnetic part 221.
  • the detection element 222 , the detection element 222 can be connected with the electrical connector 240 , so as to realize the power supply of the detection element 222 .
  • the magnetic member 221 here may be a magnet
  • the detection element 222 may be a Hall element.
  • the connecting convex portion 131 may be located on the side of the nut 143 away from the photosensitive chip. At this time, the distance between the connecting convex portion 131 and the base 110 is relatively large, so that the connecting convex portion 131 is easy to move relative to the first bracket 130. The side facing away from the base 110 bulges out, resulting in a larger space occupied by the first support 130 . Based on this, the connecting convex portion 131 can be located between the nut 143 and the photosensitive chip, thereby reducing the distance between the connecting convex portion 131 and the base 110 , thereby reducing the distance between the connecting convex portion 131 and the base 110 relative to the first bracket 130 . The probability of one side protruding is more convenient to reduce the space occupied by the first bracket 130 .
  • the first elastic member 150 can be always in a stretched state, or can always be in a compressed state, so as to ensure that the connecting convex portion 131 abuts against the nut 143 . Relatively speaking, in the latter embodiment, the space occupied by the first elastic member 150 is smaller, so the first elastic member 150 can be in a compressed state. Further, when the connecting protrusion 131 is located between the nut 143 and the photosensitive chip, the first elastic member 150 is arranged between the first bracket 130 and the base 110 , so as to make full use of the gap between the first bracket 130 and the base 110 space, making the structure of the camera module more compact.
  • the base 110 is provided with a buffer member 230, and the buffer member 230 faces the first bracket 130.
  • the buffer member 230 may adopt a sheet structure, thereby increasing the contact area between the buffer member 230 and the first bracket 130.
  • one or at least two buffer members 230 may be provided. When the buffer member 230 is configured as When there are at least two, each buffer member 230 may be arranged at intervals along a direction around the optical axis of the first lens 120 .
  • the embodiment of the present application also discloses an electronic device, and the electronic device includes the camera module in any embodiment above.
  • the electronic devices disclosed in the embodiments of the present application may be smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles and other electronic devices, and the embodiments of the present application do not specifically limit the types of electronic devices.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

本申请公开了一种摄像头模组及电子设备。摄像头模组包括基座、感光芯片、第一镜片、第一支架、驱动机构和第一弹性件，其中：感光芯片设置于基座，第一支架可移动地设置于基座，第一支架设有第一镜片，第一支架的边缘设有连接凸部，驱动机构包括驱动源、丝杠和螺母，驱动源设置于基座，驱动源与丝杠相连，螺母与丝杠螺纹配合，第一弹性件的一端与基座相连，第一弹性件的另一端与第一支架相连，在第一弹性件的作用下，连接凸部与螺母抵靠，驱动机构通过螺母带动连接凸部，以驱动第一支架沿第一方向移动，第一方向为靠近或远离感光芯片的方向，在第一支架受到外力作用的情况下，第一弹性件可使第一支架沿靠近感光芯片的方向运动。

Description

摄像头模组及电子设备
相关申请的交叉引用
本申请要求在2021年10月28日提交的中国专利申请第202111265624.2号的优先权，该中国专利申请的全部内容通过引用包含于此。
技术领域
本申请属于摄像技术领域，具体涉及一种摄像头模组及电子设备。
背景技术
现如今，随着电子设备的摄像技术不断提高，人们希望可以利用电子设备拍摄出质量更高的影像。
在实际拍摄过程中，可以通过光学变焦对被拍摄对象进行放大。光学变焦可以通过改变镜片与被拍摄对象之间的距离来放大被拍摄对象，因此，变焦过程中镜片需要移动。为了实现镜片的移动，可以通过电机输出驱动力，并通过传动机构将驱动力传递给用于安装镜片的镜筒，以使镜片移动。
然而，用户使用电子设备时，处于伸出状态的摄像头模组很容易因跌落、碰撞以及人为按压而受到按压力，在该按压力的作用下，摄像头模组的镜筒将产生回缩的趋势，但摄像头模组中用于输出驱动力的电机并不工作，因此镜筒无法回缩，这将导致摄像头模组所包含的零部件容易损坏，因此此种摄像头模组的寿命较短。
发明内容
本申请实施例的目的是提供一种摄像头模组及电子设备，能够解决摄像头模组的寿命较短的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种摄像头模组，其包括基座、感光芯 片、第一镜片、第一支架、驱动机构和第一弹性件，其中：
所述感光芯片设置于所述基座，所述第一支架可移动地设置于所述基座，所述第一支架设有所述第一镜片，所述第一支架的边缘设有连接凸部，
所述驱动机构包括驱动源、丝杠和螺母，所述驱动源设置于所述基座，所述驱动源与所述丝杠相连，所述螺母与所述丝杠螺纹配合，所述第一弹性件的一端与所述基座相连，所述第一弹性件的另一端与所述第一支架相连，在所述第一弹性件的作用下，所述连接凸部与所述螺母抵靠，所述驱动机构通过所述螺母带动所述连接凸部，以驱动所述第一支架沿第一方向移动，所述第一方向为靠近或远离所述感光芯片的方向，
在所述第一支架受到外力作用的情况下，所述第一弹性件可使所述第一支架沿靠近所述感光芯片的方向运动。
第二方面，本申请实施例提供了一种电子设备，其包括上述摄像头模组。
本申请实施例中，第一支架的边缘设有连接凸部，在第一弹性件的作用下，连接凸部与螺母抵靠，当驱动源通过丝杠驱动螺母移动时，螺母可以通过连接凸部带动第一支架沿第一方向移动，从而实现摄像头模组的变焦。在第一支架受到外力作用的情况下，第一弹性件可以变形，以使第一支架沿靠近感光芯片的方向运动，并且第一支架和螺母将会彼此分离。由于第一弹性件具有缓冲效果，因此摄像头模组所包含的零部件不容易因外力作用而损坏，因此此种摄像头模组的寿命更长。
附图说明
图1为本申请实施例公开的摄像头模组的结构示意图；
图2为本申请实施例公开的摄像头模组在另一视角下的结构示意图；
图3为本申请实施例公开的摄像头模组的部分结构的示意图；
图4为本申请实施例公开的摄像头模组的爆炸图。
附图标记说明：
110-基座、120-第一镜片、130-第一支架、131-连接凸部、131a-通孔、131b-缺口、132-第一导向部、133-第一延伸部、140-驱动机构、141-驱动源、142-丝杠、143-螺母、144-第一齿轮、145-第二齿轮、146-第三齿轮、150-第一弹性件、160-第二支架、161-第二导向部、162-第二延伸部、170-第二镜片、180-第二弹性件、190-第一导柱、210-第二导柱、220-位置检测装置、221-磁性件、222-检测元件、230-缓冲件、240-电连接件、250-滑动轴承。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的电子设备进行详细地说明。
参考图1至图4，本申请实施例公开一种摄像头模组，包括基座110、感光芯片、第一镜片120、第一支架130、驱动机构140和第一弹性件150。
感光芯片设置于基座110，基座110除了可以设置感光芯片外，还可以设置摄像头模组的其他器件。第一支架130可移动地设置于基座110，第一支架130设有第一镜片120，第一支架130的边缘设有连接凸部131。感光芯片可以用于接收穿过第一镜片120的光线，并最终将光信号转换成数字图像 信号，从而得到影像。
驱动机构140包括驱动源141、丝杠142和螺母143，驱动源141设置于基座110，驱动源141与丝杠142相连，螺母143与丝杠142螺纹配合，第一弹性件150的一端与基座110相连，第一弹性件150的另一端与第一支架130相连，在第一弹性件150的作用下，第一支架130的连接凸部131与螺母143抵靠。也就是说，第一支架130和螺母143分体设置，两者可以通过连接凸部131抵靠在一起，也可以彼此分离。可选地，基座110可包括底板，该底板可以设置驱动源141。由于第一弹性件150可以向连接凸部131施加作用力，从而使得连接凸部131按压螺母143，以此减小螺母143与丝杠142之间的螺纹间隙、传动部件之间的间隙及回程差，从而提高传动精度。驱动源141可以是电机，该电机与电连接件240相连，从而为驱动源141供电，该电连接件240可以是导线、柔性电路板等部件。进一步可选地，驱动机构140还包括第一齿轮144、第二齿轮145和第三齿轮146，第一齿轮144设置于驱动源141的输出轴上，第三齿轮146设置于丝杠142上，第一齿轮144通过第二齿轮145与第三齿轮146啮合，从而实现驱动源141与丝杠142之间的传动。
驱动源141可以驱动丝杠142转动，丝杠142可以驱动螺母143沿第一方向移动，螺母143进一步通过连接凸部131带动第一支架130沿第一方向移动，从而实现摄像头模组的变焦，即驱动机构140通过螺母143带动连接凸部131，以驱动第一支架130沿第一方向移动，这里的第一方向为靠近或远离感光芯片的方向。可选地，驱动源141和丝杠142可以平行设置，两者均沿第一方向延伸，从而使得驱动机构140的结构更加紧凑。需要说明的是，这里的螺母143并非必须采用标准件，只要设置有内螺纹就可以。此种驱动机构140具有结构紧凑、传动精度高等优点。
在第一支架130受到外力作用的情况下，第一弹性件150可使第一支架130沿靠近感光芯片的方向运动。这里的外力指的是由于人为按压、碰撞等 情况所产生的力，该外力并不包括驱动机构140施加于第一支架130的驱动力。当第一支架130受到外力作用时，该外力作用于第一弹性件150，第一弹性件150可以变形，以使第一支架130沿靠近感光芯片的方向运动，并且第一支架130和螺母143将会彼此分离。也就是说，第一弹性件150不仅可以实现缓冲，还可以改变螺母143和第一支架130之间的传动路径的通断，以此保证驱动机构140输出的驱动力可以在螺母143和第一支架130之间传递，同时保证外力作用无法通过第一支架130传递至螺母143。由于第一弹性件150具有缓冲效果，因此摄像头模组所包含的第一支架130、驱动机构140等零部件不容易因外力作用而损坏，因此此种摄像头模组的寿命更长。
可选的实施例中，连接凸部131可以是类似矩形的实心块状结构，当连接凸部131与螺母143抵靠时，两者的接触面积较小，不利于作用力的可靠传递。因此，另一实施例中，连接凸部131设有通孔131a，丝杠142的一端穿过通孔131a，且该通孔131a与丝杠142之间具有间隙。即连接凸部131可以沿丝杠142的外周方向设置，从而使得连接凸部131与螺母143抵靠时，两者的接触面积更大，从而有利于作用力的可靠传递。同时，通孔131a与丝杠142之间具有间隙，可以防止丝杠142转动时划伤连接凸部131。
上述连接凸部131所开设的通孔131a可以是沿丝杠142的外周方向环绕设置的封闭孔，如果这样设置，装配摄像头模组时，丝杠142只能从连接凸部131的一侧穿入通孔131a，这会对摄像头模组的安装顺序产生影响。为此，另一实施例中，连接凸部131的边缘设有缺口131b，缺口131b与通孔131a相连通。此时，通孔131a并非封闭孔，丝杠142可以通过该缺口131b进入通孔131a，从而实现第一支架130和丝杠142的装配。由于丝杠142可以从连接凸部131的一侧进入通孔131a，因此该结构对摄像头模组的安装顺序没有过多限制，更便于摄像头模组的组装。
为了扩大摄像头模组的变焦范围，摄像头模组还包括第二支架160和第二镜片170，第二支架160可移动地设置于第一支架130，第二支架160设有 第二镜片170，第一镜片120位于第二镜片170和感光芯片之间。可选地，可以在第一支架130上设置驱动部件，该驱动部件包括伸缩缸或者线圈磁体组件，还可以采用其他驱动方案，只要能够带动第二支架160相对于第一支架130移动即可。由于第二镜片170与第一镜片120之间的距离可以变化，因此可以通过第二镜片170的移动获得更多的变焦倍数。
需要说明的是，第一镜片120和第二镜片170的数量均可以为一个，或者至少两个，两者的具体数量可以根据摄像头模组的成像要求确定，本申请实施例对此不作限制。
可选地，摄像头模组还包括第二弹性件180，第二弹性件180设置于第一支架130和第二支架160之间，驱动机构140通过第一支架130和第二弹性件180驱动第二支架160沿第一方向移动，在第二支架160受到外力作用的情况下，第二弹性件180可使第二支架160沿靠近感光芯片的方向运动。当驱动机构140向第一支架130施加作用力时，第一支架130移动的同时可以通过第二弹性件180带动第二支架160移动，从而实现第一镜片120和第二镜片170的同步移动，而第二支架160受到外力作用时，第二弹性件180可以发生变形，从而缓冲该外力作用，防止第一支架130、第二支架160等部件因该外力作用而出现损坏。同时，第二弹性件180可以允许第二支架160相对于第一支架130移动，因此可以改变第二镜片170与第一镜片120之间的距离，从而实现变焦，此种变焦方案具有结构简单等优点。
为了提升第一支架130运动时的平稳性，摄像头模组还包括第一导柱190，基座110和第一支架130中，一者设有第一导向部132，另一者与第一导柱190固定连接，第一导向部132与第一导柱190滑动配合。此实施例中，第一导柱190可以限制第一支架130的横向移动，从而为第一支架130的移动提供导向，使其更平稳地移动。可选地，第一支架130可以采用圆环结构，进一步可选地，可以设置多个第一导柱190，该多个第一导柱190可沿第一支架130的周向均匀间隔排布，且多个第一导柱190与多个第一导向部132 一一对应配合，从而优化导向效果。
为了提升第二支架160运动时的平稳性，摄像头模组还包括第二导柱210，第一支架130和第二支架160中，一者设有第二导向部161，另一者与第二导柱210固定连接，第二导向部161与第二导柱210滑动配合。此实施例中，第二导柱210可以限制第二支架160的横向移动，从而为第二支架160的移动提供导向，使其更平稳地移动。可选地，第二支架160可以采用圆环结构，进一步可选地，可以设置多个第二导柱210，该多个第二导柱210可沿第二支架160的周向均匀间隔排布，且多个第二导柱210与多个第二导向部161一一对应配合，从而优化导向效果。
可选地，上述第一导向部132和第二导向部161均可以设置为导向孔，从而增大第一导向部132与第二导柱210以及第二导向部161与第二导柱210的接触面积，从而改善导向效果。此外，摄像头模组还可以包括滑动轴承250，第一导柱190和第二导柱210中的至少一者与滑动轴承250配合，从而降低移动过程中所产生的磨损。
第一弹性件150与第一支架130的连接位置可与第一导柱190所处的位置错开，考虑到第一弹性件150容易发生横向变形，因此需要额外设置限位部件来限制第一弹性件150的横向变形。其他实施例中，可以将第一弹性件150套设于第一导柱190，如此设置可以通过第一导柱190限制第一弹性件150的横向变形，也就不需要额外设置限位部件来限制第一弹性件150的横向变形，因此该实施例可以减少摄像头模组所包含的零部件，从而降低摄像头模组的成本，同时减小其所占用的空间。
进一步可选的实施例中，第一支架130背离第二支架160的一面设有第一延伸部133，第一延伸部133设有第一导向部132，第一延伸部133至少部分位于第一弹性件150内。该实施例中，第一延伸部133可以作为第一支架130与第一弹性件150的连接部分，其至少部分伸入第一弹性件150内后，可以辅助限制第一弹性件150的横向变形，从而更有利于延长第一弹性件150 的寿命。同时，第一导向部132的尺寸小于第一延伸部133，第一导柱190的尺寸可以随之减小，从而在实现导向以及限制第一弹性件150的横向变形的基础上，减小摄像头模组所占用的空间。
第二弹性件180与第二支架160的连接位置可与第二导向部161所处的位置错开，但是这样设置会导致第二支架160的结构不够紧凑，并且会增大第二支架160的结构设计难度。为此，第二支架160朝向第一支架130的一面设有第二延伸部162，第二延伸部162设有第二导向部161，第二延伸部162可至少部分伸入第二弹性件180内。该实施例中，第二延伸部162可以作为第二支架160与第二弹性件180的连接部分，其至少部分伸入第二弹性件180内后，可以辅助限制第二弹性件180的横向变形，从而更有利于延长第二弹性件180的寿命。由于第二延伸部162和第二导向部161集成设置在一起，因此第二支架160的结构更加紧凑，其结构设计难度更低，并且第二支架160不容易挤占其他部件的空间，对于摄像头模组的整体布局更有利。另外，第二导向部161的尺寸小于第二延伸部162，第二导柱210的尺寸可以随之减小，从而在实现导向以及限制第二弹性件180的横向变形的基础上，减小摄像头模组所占用的空间。
进一步可选地，第一延伸部133设有第一沉孔，第一导向部132可以设置于该第一沉孔的底面。相比于第一导向部132贯穿整个第一延伸部133的方案，该实施例使得第一导向部132仅贯穿第一延伸部133的一部分，第一导柱190远离基座110的一端可以更靠近基座110，从而使得第一支架130和第二支架160之间的距离调整范围更大，以此扩大变焦范围。
同理地，第二延伸部162设有第二沉孔，第二导向部161可以设置于该第二沉孔的底面。相比于第二导向部161贯穿整个第二延伸部162的方案，该实施例使得第二导向部161仅贯穿第二延伸部162的一部分，第二导柱210远离第一支架130的一端可以更靠近第一支架130，从而使得第一支架130和第二支架160之间的距离调整范围更大，以此扩大变焦范围。
进一步可选地，摄像头模组还包括位置检测装置220，位置检测装置220包括磁性件221和检测元件，基座110和第一支架130中，一者设有磁性件221，另一者设有检测元件222，该检测元件222可与电连接件240相连，从而实现检测元件222的供电。当第一支架130相对于基座110移动时，磁性件221的磁场分布发生变化，检测元件222可以感应到这一变化，从而根据这一变化测得第一支架130相对于基座110的位置，以便于根据检测值更精确地控制第一支架130移动。可选地，这里的磁性件221可以是磁铁，检测元件222可以是霍尔元件。
可选地，连接凸部131可以位于螺母143背离感光芯片的一侧，此时连接凸部131与基座110之间的距离较大，因此会导致连接凸部131容易相对于第一支架130背离基座110的一面凸出，最终造成第一支架130占用的空间较大。基于此，可以使连接凸部131位于螺母143与感光芯片之间，从而减小连接凸部131与基座110之间的距离，进而降低连接凸部131相对于第一支架130背离基座110的一面凸出的几率，更便于减小第一支架130所占用的空间。
第一弹性件150既可以始终处于拉伸状态，也可以始终处于压缩状态，从而保证连接凸部131与螺母143相抵靠。相对而言，后一种实施例中，第一弹性件150占用的空间更小，因此可以使第一弹性件150处于压缩状态。进一步地，当连接凸部131位于螺母143与感光芯片之间时，第一弹性件150设置于第一支架130和基座110之间，从而充分利用第一支架130和基座110之间的空间，使得摄像头模组的结构更加紧凑。
为了改善缓冲效果，基座110设有缓冲件230，该缓冲件230朝向第一支架130，第一支架130移动的过程中，即使第一支架130距离基座110较近，第一支架130也不会直接与基座110碰撞，而是与缓冲件230接触，该缓冲件230受力后可以发生变形，从而实现缓冲作用。可选地，缓冲件230可以采用片状结构，从而增大缓冲件230与第一支架130的接触面积，此外， 缓冲件230可以设置一个，也可以设置至少两个，当缓冲件230设置为至少两个时，各缓冲件230可以沿环绕第一镜片120光轴的方向间隔排布。
本申请实施例还公开了一种电子设备，该电子设备包括上述任意实施例中的摄像头模组。
本申请实施例公开的电子设备可以是智能手机、平板电脑、电子书阅读器、可穿戴设备(例如智能手表)、电子游戏机等电子设备，本申请实施例对电子设备的种类不作具体限制。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (13)

  1. 一种摄像头模组，包括基座、感光芯片、第一镜片、第一支架、驱动机构和第一弹性件，其中：
    所述感光芯片设置于所述基座，所述第一支架可移动地设置于所述基座，所述第一支架设有所述第一镜片，所述第一支架的边缘设有连接凸部，
    所述驱动机构包括驱动源、丝杠和螺母，所述驱动源设置于所述基座，所述驱动源与所述丝杠相连，所述螺母与所述丝杠螺纹配合，所述第一弹性件的一端与所述基座相连，所述第一弹性件的另一端与所述第一支架相连，在所述第一弹性件的作用下，所述连接凸部与所述螺母抵靠，所述驱动机构通过所述螺母带动所述连接凸部，以驱动所述第一支架沿第一方向移动，所述第一方向为靠近或远离所述感光芯片的方向，
    在所述第一支架受到外力作用的情况下，所述第一弹性件可使所述第一支架沿靠近所述感光芯片的方向运动。
  2. 根据权利要求1所述的摄像头模组，其中，所述连接凸部设有通孔，所述丝杠的一端穿过所述通孔，且所述通孔与所述丝杠之间具有间隙。
  3. 根据权利要求2所述的摄像头模组，其中，所述连接凸部的边缘设有缺口，所述缺口与所述通孔相连通。
  4. 根据权利要求1所述的摄像头模组，其中，所述摄像头模组还包括第二支架和第二镜片，所述第二支架可移动地设置于所述第一支架，所述第二支架设有所述第二镜片，所述第一镜片位于所述第二镜片和所述感光芯片之间。
  5. 根据权利要求4所述的摄像头模组，其中，所述摄像头模组还包括第二弹性件，所述第二弹性件设置于所述第一支架和所述第二支架之间，
    所述驱动机构通过所述第一支架和所述第二弹性件驱动所述第二支架沿所述第一方向移动，
    在所述第二支架受到外力作用的情况下，所述第二弹性件可使所述第二 支架沿靠近所述感光芯片的方向运动。
  6. 根据权利要求5所述的摄像头模组，其中，所述摄像头模组还包括第一导柱，所述基座和所述第一支架中，一者设有第一导向部，另一者与所述第一导柱固定连接，所述第一导向部与所述第一导柱滑动配合，
    所述摄像头模组还包括第二导柱，所述第一支架和所述第二支架中，一者设有第二导向部，另一者与所述第二导柱固定连接，所述第二导向部与所述第二导柱滑动配合。
  7. 根据权利要求6所述的摄像头模组，其中，所述第一弹性件套设于所述第一导柱。
  8. 根据权利要求6所述的摄像头模组，其中，所述第一支架背离所述第二支架的一面设有第一延伸部，所述第一延伸部设有所述第一导向部，所述第一延伸部至少部分位于所述第一弹性件内，
    所述第二支架朝向所述第一支架的一面设有第二延伸部，所述第二延伸部设有所述第二导向部，所述第二延伸部可至少部分伸入所述第二弹性件内。
  9. 根据权利要求1所述的摄像头模组，其中，所述摄像头模组还包括位置检测装置，所述位置检测装置包括磁性件和检测元件，所述基座和所述第一支架中，一者设有所述磁性件，另一者设有所述检测元件。
  10. 根据权利要求1所述的摄像头模组，其中，所述连接凸部位于所述螺母与所述感光芯片之间。
  11. 根据权利要求1所述的摄像头模组，其中，所述第一弹性件处于压缩状态。
  12. 根据权利要求1所述的摄像头模组，其中，所述基座设有缓冲件，所述缓冲件朝向所述第一支架。
  13. 一种电子设备，包括如权利要求1至12中任一项所述的摄像头模组。
PCT/CN2022/126923 2021-10-28 2022-10-24 摄像头模组及电子设备 Ceased WO2023071966A1 (zh)

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