WO2024061301A1 - 镜头模组和电子设备 - Google Patents

镜头模组和电子设备 Download PDF

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Publication number
WO2024061301A1
WO2024061301A1 PCT/CN2023/120258 CN2023120258W WO2024061301A1 WO 2024061301 A1 WO2024061301 A1 WO 2024061301A1 CN 2023120258 W CN2023120258 W CN 2023120258W WO 2024061301 A1 WO2024061301 A1 WO 2024061301A1
Authority
WO
WIPO (PCT)
Prior art keywords
straight wire
wire segment
lens
base
lens module
Prior art date
Application number
PCT/CN2023/120258
Other languages
English (en)
French (fr)
Inventor
杨泽
李光云
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2024061301A1 publication Critical patent/WO2024061301A1/zh

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Classifications

    • 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
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations

Definitions

  • This application belongs to the technical field of communication equipment, and specifically relates to a lens module and electronic equipment.
  • Anti-shake is an important capability of the imaging part of electronic equipment.
  • mechanical devices such as focus motors are usually used to connect to the photosensitive chip in the lens module.
  • the focus motor is used to reversely translate the photosensitive chip. chip to achieve the purpose of anti-shake.
  • the focus motor is easily damaged, has a relatively short service life, and is limited by its own working principle, so the anti-shake accuracy of the focus motor is relatively low.
  • the purpose of the embodiments of the present application is to provide a lens module and electronic equipment to solve the problem that the focus motor used to provide anti-shake function in current electronic equipment has a relatively short service life and a relatively low anti-shake accuracy.
  • an embodiment of the present application discloses a lens module, which includes a base, a lens, a photosensitive chip, a mounting base and a driving mechanism, wherein,
  • the lens is installed on the base, the photosensitive chip is fixed on the mounting base, and the photosensitive chip is arranged on the light exit side of the lens, and the mounting base is movable relative to the base;
  • the driving mechanism includes a first straight wire segment, a second straight wire segment and a magnet.
  • the first straight wire segment The line segment extends along a first direction perpendicular to the optical axis of the lens
  • the second straight wire segment extends along a second direction perpendicular to the first direction
  • the magnet is located between the first straight wire segment and the third straight wire segment.
  • the two straight wire segments are on the same side, and the first straight wire segment and the second straight wire segment are both located in the magnetic field of the magnet, and the driving mechanism is used to drive the mounting base in the first direction. and/or the second direction moves relative to the base.
  • an embodiment of the present application discloses an electronic device, which includes the above-mentioned lens module.
  • An embodiment of the present application discloses a lens module, in which the lens is installed on a base, the photosensitive chip is installed on the mounting base, the mounting base is movably arranged relative to the base, and the mounting base can move relative to the base through a driving mechanism.
  • the driving mechanism the first straight wire segment and the second straight wire segment are arranged vertically, and both are perpendicular to the optical axis direction of the lens.
  • the first straight wire segment and the second straight wire segment are both located in the magnetic field of the magnet, and then in the first When the straight wire segment and/or the second straight wire segment are energized, the mounting base can be driven relative to the base along the extension direction of the first straight wire segment (i.e., the first direction) and/or the extension direction of the second straight wire segment (i.e., the first direction). That is, the second direction) movement enables the lens module to have an anti-shake function.
  • the components used to improve the anti-shake effect are wires and magnets. Both of them have a relatively long service life, and there is basically no mutual contact relationship between them, which can prevent the components from being in contact with each other. The friction effect affects the anti-shake accuracy, ensuring that the lens module has high anti-shake accuracy.
  • FIG1 is a schematic diagram of the structure of a lens module disclosed in an embodiment of the present application.
  • FIGS 2 and 3 are schematic diagrams of partial structures of the lens module disclosed in the embodiments of the present application.
  • Figure 4 is a schematic structural diagram of the driving mechanism in the lens module disclosed in the embodiment of the present application.
  • 500-driving mechanism 510-first coil, 511-first straight wire segment, 512-fourth straight wire segment, 520-second coil, 521-second straight wire segment, 522-fifth straight wire segment, 530 -The third coil, 531-the third straight wire segment, 532-the sixth straight wire segment, 540-magnet,
  • 700-flexible circuit board 710-limiting part, 711-first connecting section, 712-deformation section, 712a-long through hole, 713-second connecting section, 720-connecting part.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the figures so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in orders other than those illustrated or described herein, and that "first,” “second,” etc. are distinguished Objects are usually of one type, and the number of objects is not limited. For example, the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the related objects are in an "or” relationship.
  • the lens module includes a base 120, a lens 310, a photosensitive chip 320, a mounting base 330 and a driving mechanism 500.
  • the base 120 is a device used to provide a mounting base in the lens module, and it can be Formed from hard materials such as metal or plastic to provide stable mounting for other devices.
  • the specific shape and size of the base 120 and other parameters can be determined according to the actual situation.
  • the base 120 can be a rectangular structure as a whole, and in order to ensure that the base 120 does not hinder the photosensitive chip 320 from performing photosensitive work, the base 120 can be a through-type structure, so that the light incident from one side of the base 120 can enter to the photosensitive chip 320.
  • the lens 310 is used to provide light distribution.
  • the lens 310 can usually be made of materials such as glass or resin.
  • the size of the lens 310 can be selected according to the photosensitive area of the photosensitive chip 320 .
  • the number of lenses 310 can be one. In order to improve the imaging effect of the lens module, the number of lenses 310 can be multiple.
  • the multiple lenses 310 are distributed along a straight line, and the optical axes of the multiple lenses 310 are located on the same straight line.
  • 310 may include at least one convex lens and at least one concave lens.
  • the plurality of lenses 310 may also include other types of optical devices, which is not limited here.
  • the lens 310 is installed on the base 120. Specifically, the lens 310 can be fixedly connected to the base 120, or a zoom device such as a voice coil motor can be used to enable the lens 310 to move relative to the base. 120° movement to provide zoom function and enhance the scope of application of the lens module.
  • the photosensitive chip 320 is used to provide imaging, which can convert optical images into electrical signals, and convert electrical signals into digital signals through analog-to-digital conversion. After processing using digital signal processing technology, it can be processed by the processor of the electronic device. Converted into an image that can be displayed on the display of an electronic device.
  • the mounting base 330 is a device used to provide a mounting base for the photosensitive chip 320, and can be used as a medium for other devices to form a connection relationship with the photosensitive chip 320, preventing other devices from being directly connected to the photosensitive chip 320, which may affect the performance and performance of the photosensitive chip 320. adversely affect the service life.
  • the mounting base 330 can be made of a hard material such as plastic or metal, and the mounting base 330 can have a mounting plane, so that the photosensitive chip 320 can be fixed on the mounting plane of the mounting base 330 more reliably.
  • the photosensitive chip 320 can form a fixed connection relationship with the base 120 through adhesion or other methods.
  • the photosensitive chip 320 is located on the light exit side of the lens 310, so that the light emitted from the lens 310 The light can be incident into the photosensitive chip 320 for imaging.
  • the lens module may also include components such as a circuit board.
  • the circuit board is used to power the photosensitive chip 320 and other components, and may be used as a supporting device for the photosensitive chip 320 and the mounting base 330 .
  • the circuit board may be a flexible circuit board 700. By disposing the flexible circuit boards 700 on opposite sides of the mounting base 330 and extending the flexible circuit boards 700 in the direction of the lens 310, each flexible circuit board is When 700 is connected to both the base 120 and the mounting base 330, the flexible circuit board 700 is used to have an anti-bending effect in its length direction to provide support for the relatively small mounting base 330 and the photosensitive chip 320, so that the photosensitive chip 320 can be photosensitive.
  • the chip 320 is "suspended" to ensure that the photosensitive chip 320 and the mounting base 330 are both movable with the base 120, and the anti-shake effect can be achieved by changing the relative position between the photosensitive chip 320 and the lens 310.
  • the photosensitive chip 320 can be electrically connected to the flexible circuit board 700 so that the flexible circuit board 700 can provide power supply to the photosensitive chip 320 .
  • the photosensitive chip 320 can also be connected to the base 120 through an elastic connector to provide support for the photosensitive chip 320. At the same time, the relative movement between the photosensitive chip 320 and the base 120 is not restricted.
  • the driving mechanism 500 includes a first straight wire segment 511 , a second straight wire segment 521 and a magnet 540 .
  • the first straight wire segment 511 extends along a first direction perpendicular to the optical axis of the lens 310
  • the second straight wire segment 521 extends along a first direction perpendicular to the optical axis of the lens 310 .
  • the wire segment 521 extends along the second direction, and the first direction and the second direction are arranged perpendicularly, that is, the first straight wire segment 511 and the second straight wire segment 521 are arranged vertically, and the plane formed by the two is perpendicular to the light beam of the lens 310 . axis.
  • the magnet 540 can provide a magnetic field, and the magnet 540 is located on the same side of the first straight wire segment 511 and the second straight wire segment 521, so that the first straight wire segment 511 and the second straight wire segment 521 are both located in the magnetic field of the magnet 540. , so that when the first straight wire segment 511 and the second straight wire segment 521 are energized, the first straight wire segment 511 and the second straight wire segment 521 can move in the magnetic field, providing a driving force, so that the driving force
  • the mechanism 500 can drive the mounting base 330 to move relative to the base 120 in the first direction and/or the second direction.
  • the magnet 540 is used to provide a magnetic field, and the first straight wire segment 511 Current can be passed through both the first straight wire segment 511 and the second straight wire segment 521 and the magnet 540. Furthermore, during the process of assembling the lens module, the first straight wire segment 511 and the second straight wire segment 521 can be treated as a whole and form a relatively fixed relationship with one of the mounting base 330 and the base 120, and at the same time, the magnet 540 and the mounting base 330 can be Form a relatively fixed relationship with the other one of the base 120 to ensure that at least one of the first straight wire segment 511 and the second straight wire segment 521 can move in the magnetic field generated by the magnet 540 when energized, and The mounting base 330 is driven to move relative to the base 120 .
  • the magnet 540 may provide the first straight wire segment 511 and the second straight wire segment 521 with a magnetic field force in a direction along the optical axis of the lens 310 .
  • the first straight wire segment 511 and the second straight wire segment 521 are independent of each other. That is, when the photosensitive chip 320 needs to move relative to the base 120, the current can be passed into the first straight wire segment 511 alone, the current can be passed into the second straight wire segment 521 alone, or, Current can be passed into the first straight wire segment 511 and the second straight wire segment 521 at the same time.
  • the size and direction of the current flowing into the first straight wire segment 511 and the second straight wire segment 521 can be controlled accordingly according to the size and direction of the required displacement of the photosensitive chip 320 to ensure the protection of the lens module. jitter accuracy.
  • the first straight wire segment 511 extends along the first direction
  • the second straight wire segment 521 extends along the second direction.
  • the first straight wire segment 511 can make the mounting base 330 move in the second direction relative to the base 120;
  • the second straight wire segment Segment 521 can make the mounting base 330 move in the first direction relative to the base 120;
  • both the first straight wire segment 511 and the second straight wire segment 521 are energized, under the action of the magnetic field of the magnet 540, the mounting base 330 can be moved
  • the relative base 120 moves along the combined direction of the first direction and the second direction, and the specific conditions of the movement direction can be determined according to the magnitude and direction of the current flowing in the first straight conductor section 511 and the second straight conductor section, combined with the vector
  • the synthetic correspondence is determined and will not be explained
  • the embodiment of the present application discloses a lens module, wherein the lens 310 is mounted on the base 120, and the photosensitive core
  • the sheet 320 is mounted on the mounting seat 330, and the mounting seat 330 is movably arranged relative to the base 120, and the mounting seat 330 can move relative to the base 120 through the driving mechanism 500.
  • the driving mechanism 500 the first straight wire segment 511 and the second straight wire segment 521 are vertically arranged, and both are perpendicular to the optical axis direction of the lens 310.
  • the first straight wire segment 511 and the second straight wire segment 521 are both located in the magnetic field of the magnet 540, and then when the first straight wire segment 511 and/or the second straight wire segment 521 are energized, the mounting seat 330 can be driven to move relative to the base 120 along the extension direction of the first straight wire segment 511 (i.e., the first direction) and/or the extension direction of the second straight wire segment 521 (i.e., the second direction), so that the lens module has an anti-shake function.
  • the devices used to enhance the anti-shake effect are the wire and the magnet 540, both of which have relatively long service lives and there is basically no contact between the two, which can prevent the friction between the devices from affecting the anti-shake accuracy and ensure that the lens module has a high anti-shake accuracy.
  • the lens module may also be provided with an infrared filter, which is used to provide a filtering effect to improve the imaging effect of the lens module, and the infrared filter may also provide a dustproof effect, thereby providing a protective effect for the photosensitive chip 320, preventing dust and other impurities from adversely affecting the imaging accuracy of the infrared filter.
  • the infrared filter is located between the lens 310 and the photosensitive chip 320, and optionally, the infrared filter may also be installed on the mounting seat 330, and the infrared filter and the photosensitive chip 320 are relatively fixed.
  • the mounting base 330 can be moved in the first direction and/or the second direction relative to the base 120.
  • the first straight wire segment The effect of the wire segment 511 and the second straight wire segment 521 on the mounting base 330 is to drive the mounting base 330 to displace relative to the base 120 in a certain linear direction.
  • torsional jitter may also occur.
  • the driving mechanism 500 may also include a third straight wire segment 531,
  • the third straight conductor segment 531 is arranged parallel to the first straight conductor segment 511, that is, the third straight conductor segment 531 also extends along the first direction.
  • the third straight wire segment 531 and the first straight wire segment 511 are distributed along the first direction, and the third straight wire segment 531 is also located in the magnetic field of the magnet 540, which makes the third straight wire segment 531 and the first straight wire segment 511 is capable of applying a driving force in the opposite direction to the mounting base 330, so that the mounting base 330 can move in the first straight direction.
  • a certain position between the wire segment 511 and the third straight wire segment 531 is the center, and rotates relative to the lens 310 in a direction around the optical axis of the lens 310, thereby enabling the lens module to have a rotational anti-shake function and improving the lens module. anti-shake performance.
  • the first straight wire segment 511 and the third straight wire segment 531 may be located in the same magnetic field.
  • the first straight wire segment 511 and the third straight wire segment 531 may be located in the same magnetic field generated by the same magnet 540 In the magnetic field, it is ensured that the magnetic field force exerted by the two acts in the same direction; alternatively, the first straight wire segment 511 and the third straight wire segment 531 can be respectively provided with at least one magnet 540, by making the two corresponding magnets 540 The magnetic poles are the same, which can also ensure that the magnetic field force exerted on them acts in the same direction.
  • the first straight wire segment 511 and the third straight wire segment 531 can be located in different magnetic fields respectively. Specifically, by providing the first straight wire segment 511 and the third straight wire segment 531 are respectively provided with at least one magnet 540, and the magnetic poles of the two corresponding magnets 540 are opposite, so that the directions of the magnetic field forces exerted by the first straight wire segment 511 and the third straight wire segment 531 are opposite.
  • the magnitude of the magnetic field force exerted by the first straight wire segment 511 and the third straight wire segment 531 is not limited here. In order to facilitate the control of the movement of the mounting base 330, the magnitude of the magnetic field force exerted on the first straight wire segment 511 and the third straight wire segment 531 can be made equal.
  • the first straight wire segment 511 and the third straight wire segment 531 when the magnetic field directions of the first straight wire segment 511 and the third straight wire segment 531 are the same, by controlling the currents flowing in opposite directions in the first straight wire segment 511 and the third straight wire segment 531, the first straight wire segment 511 and the third straight wire segment 531 can be
  • the third straight wire segments 531 provide opposing forces to the mounting base 330 respectively. Under the action of the two opposing forces, the mounting base 330 can rotate relative to the lens 310 in a direction around the optical axis of the lens 310 .
  • the magnitude of the current flowing through them can be controlled accordingly to control the rotation angle of the mounting base 330 relative to the lens 310 the goal of.
  • the first straight wire segment 511 and the third straight wire segment 531 can also be The wire segment 531 can provide the mounting base 330 with opposing forces, and under the action of the two opposing forces, the mounting base 330 can rotate relative to the lens 310 in a direction around the optical axis of the lens 310 .
  • the magnitude of the current flowing through them can be controlled accordingly to control the rotation angle of the mounting base 330 relative to the lens 310 the goal of.
  • the first straight wire segment 511 and the second straight wire segment 521 can be connected in series to reduce the difficulty of electrical connection.
  • the first straight wire segment 511 and the third straight wire segment 531 can also be made independent of each other, that is, they can be powered independently, so that in the process of controlling the rotation of the mounting base 330 relative to the base 120, the mounting base 330 can be raised. Rotation accuracy, thereby improving the anti-shake accuracy of the lens module.
  • the second straight wire segment 521 can be located on the side of the first straight wire segment 511 away from the third straight wire segment 531 .
  • the second straight wire segment 521 can be located between the first straight wire segment 511 and the third straight wire segment 531.
  • the first straight wire segment 521 The segment 511 and the third straight wire segment 531 are located on opposite sides of the second straight wire segment 521, so that when the driving mounting base 330 rotates relative to the base 120, and when the driving mounting base 330 translates relative to the base 120, The force uniformity of the mounting base 330 is relatively better, and the operation stability of the mounting base 330 is improved.
  • the first straight wire segment 511 and the third straight wire segment 531 can be arranged symmetrically with the second straight wire segment 521 as the symmetry axis, and the center of the mounting base 330 (or the photosensitive chip 320) is located in the light beam of the lens 310.
  • the second straight wire segment 521 can be arranged centrally relative to the lens 310 (and the photosensitive chip 320), which can further improve the force uniformity of the photosensitive chip 320 (and the mounting base 330), and can improve the photosensitive chip. 320 degree of movement accuracy, thereby improving the anti-shake performance of the lens module.
  • the first straight wire segment 511 and the second straight wire segment 521 are both located in the magnetic field of the magnet 540.
  • the number of the magnet 540 can be one, and the size of the magnet 540 can be relatively large, so that the magnet 540 can be 540 can cover the area where the first straight wire segment 511 and the second straight wire segment 521 are located, thereby providing a magnetic field for the first straight wire segment 511 and the second straight wire segment 521 .
  • the structure of the driving mechanism 500 in the device is compact and the space occupied by the driving mechanism 500 is reduced.
  • the number of magnets 540 is multiple, and the first straight wire segment 511 and the second straight wire segment 521 are both At least one magnet 540 is provided.
  • the first straight wire segment 511 and the second straight wire segment 521 are each independently provided with a magnet 540, so that the magnet 540 can be matched correspondingly according to the respective sizes and positions of the first straight wire segment 511 and the second straight wire segment 521, so that the space occupied by the first straight wire segment 511 and the second straight wire segment 521 corresponds to the space occupied by the magnet 540, and the space occupied by the magnet 540 is minimized.
  • the first straight wire segment 511 and the second straight wire segment 521 can also be selectively matched with magnets 540 with different parameters according to actual needs, so as to enhance the convenience of the lens module.
  • a corresponding magnet 540 can be provided for each of the first straight wire segment 511 and the second straight wire segment 521 to ensure that the corresponding magnet 540
  • a relatively uniform magnetic field can be provided for everywhere on the first straight wire segment 511 and the second straight wire segment 521, thereby improving the force uniformity of the first straight wire segment 511 and the second straight wire segment 521.
  • the lens module further includes a third straight wire segment 531, it will also facilitate the formation process of the magnetic field of the third straight wire segment 531.
  • the first straight wire segment 511 , the second straight wire segment 521 and the third straight wire segment 531 can each be independently equipped with at least one magnet 540 .
  • the space occupied by the plurality of magnets 540 is Relatively small, it facilitates improved space utilization within the lens module.
  • the driving mechanism 500 includes a first straight wire segment 511 , and can pass a current of a preset size and direction into the first straight wire segment 511 according to the displacement of the mounting base 330 . It can move within the magnetic field and cause the mounting base 330 to generate corresponding displacement relative to the base 120 .
  • a wire may be used to electrically connect the first straight wire segment 511 with a battery or circuit board of an electronic device to deliver a predetermined size and direction to the first straight wire segment 511 . current.
  • the driving mechanism 500 includes a first coil 510,
  • the first coil 510 includes a fourth straight wire segment 512 and the above-mentioned first straight wire segment 511 that are parallel to each other and conduct with each other.
  • the fourth straight wire segment 512 and the first straight wire segment 511 are both equipped with magnets 540, and pass through the pair of magnets 540.
  • the magnetic poles of the magnets 540 provided with the first straight wire segment 511 and the fourth straight wire segment 512 are designed so that the direction of the magnetic field received by the fourth straight wire segment 512 is opposite to the direction of the magnetic field received by the first straight wire segment 511.
  • the first straight wire segment 511 and the fourth straight wire segment 512 connected end to end can provide the mounting base 330 with a driving effect in the same direction under the action of the corresponding magnetic field.
  • the force effect of the mounting base 330 can be increased, and by arranging magnets 540 for the first straight wire segment 511 and the fourth straight wire segment 512 respectively, and making the two The magnetic poles of the magnet 540 facing the mounting base 330 are opposite, which can also improve the regularity of the magnetic field generated by the magnet 540 corresponding to the first coil 510 and prevent the magnetic field disorder from adversely affecting the operation accuracy of the first coil 510 .
  • first line segment may include a plurality of first straight line segments 511 and a plurality of fourth straight line segments 512, and the plurality of first straight line segments 511 and the plurality of fourth straight line segments 512 are alternately connected end to end, This is to further enhance the driving effect and stability provided by the first coil 510 to the mounting base 330 .
  • the driving mechanism 500 further includes a second coil 520.
  • the second coil 520 includes a fifth straight wire segment 522 and the above-mentioned second straight wire segment 521.
  • the second straight wire segment 521 and the fifth straight wire segment 522 They are connected end to end, and both are equipped with magnets 540 respectively, so that the direction of the magnetic field exerted by the second straight wire segment 521 is opposite to the direction of the magnetic field exerted by the fifth straight wire segment 522, and then passes to the second coil 520.
  • the second straight wire segment 521 and the fifth straight wire segment 522 can provide the mounting base 330 with driving force in the same direction.
  • the second coil 520 may also include a plurality of second straight wire segments 521 and a plurality of fifth straight wire segments 522, and the plurality of second straight wire segments 521 and the plurality of fifth straight wire segments 522 are alternately connected end to end. , to further enhance the driving effect and stability provided by the second coil 520 to the mounting base 330 .
  • the driving mechanism 500 also includes a third coil 530.
  • the third coil 530 includes a sixth straight wire segment 532 and the above-mentioned third straight wire segment 531.
  • the third straight wire segment 531 and the sixth straight wire segment 532 Connected end to end, and both are equipped with magnets 540 respectively, so that the third straight wire segment
  • the direction of the magnetic field acting on the coil 531 is opposite to the direction of the magnetic field acting on the sixth straight wire segment 532.
  • the third straight wire segment 531 and the sixth straight wire segment 531 can be 532 can provide the mounting base 330 with a driving force in the same direction.
  • the third coil 530 may also include a plurality of third straight wire segments 531 and a plurality of sixth straight wire segments 532, and the plurality of third straight wire segments 531 and the plurality of sixth straight wire segments 532 are alternately connected end to end. , to further enhance the driving effect and stability provided by the third coil 530 to the mounting base 330 .
  • the magnetic field generated by the magnet 540 used to cooperate with the second coil 520 and the third coil 530 respectively will inevitably produce a magnetic field effect on the first coil 510. Therefore, , during the design process of the lens module, the magnetic field effects on the first coil 510, the second coil 520 and the third coil 530 can be tested and regulated to ensure that the first coil 510, the second coil 520 and the third coil 530 are The magnitude and direction of the magnetic field intensity experienced by corresponding parts of the coil 530 are basically the same, thereby ensuring high accuracy when the driving mechanism 500 is used to move the mounting base 330 relative to the base 120 .
  • the lens 310 can be installed on the base 120.
  • the lens module also includes a base plate 130.
  • the base plate 130 can provide a bearing function for the lens 310 and the mounting base 330 and other components, and facilitate the lens module to form an integral body. structural parts.
  • the bottom plate 130 can be made of hard materials such as metal or plastic, and the base 120 can be supported on the bottom plate 130 , and the base 120 and the bottom plate 130 can be fixedly connected through bonding or other methods.
  • the lens module may also include a housing 110.
  • the housing 110 is provided outside the base 120 and the lens 310.
  • the mounting base 330, the photosensitive chip 320, the driving mechanism 500 and other structures may also be provided within the housing 110.
  • the housing 110 is used to provide protection for the aforementioned components; and by fixedly connecting the housing 110 to the base plate 130 , other components in the lens module can be packaged in the space enclosed by the housing 110 and the base plate 130 .
  • a light hole needs to be provided on the housing 110.
  • an infrared filter 360 may be provided at the light hole.
  • the photosensitive chip 320 can be connected to the electronic circuit through the flexible circuit board 700
  • the battery and other power supply components of the device are electrically connected.
  • the lens module can also include a connector 340.
  • the photosensitive chip 320 can be electrically connected to the connector 340 through the flexible circuit board 700, and the connector 340 can be connected to the electronic device through The motherboard and other devices are connected to each other, so that the battery of the electronic device can supply power to the photosensitive chip 320 through the motherboard and adapt to the connection rules in the electronic device.
  • flexible circuit boards 700 can be disposed on opposite sides of the photosensitive chip 320, and under the action of the flexible circuit boards 700 on both sides, the photosensitive chip 320 can be "suspended". More specifically, two flexible circuit boards 700 are provided on the side of the base plate 130 where the lens 310 is located. The two flexible circuit boards 700 are respectively provided on opposite sides of the lens 310, and each flexible circuit board 700 is in contact with the photosensitive chip.
  • the lens module The group can perform anti-shake work.
  • the flexible circuit board 700 may include a limiting portion 710 and a connecting portion 720 , wherein the connecting portion 720 Located between the lens 310 and the base plate 130, the connecting portion 720 can be connected to both the photosensitive chip 320 and the connector 340, and is used as a transmission medium for electrical signals and control signals between the photosensitive chip 320 and the connector 340.
  • Limiting portions 710 are provided on opposite sides of the lens 310 , and each limiting portion 710 is spaced from the bottom plate 130 so that the photosensitive chip 320 can be spaced apart from the bottom plate 130 through the limiting portion 710 , ensuring that the photosensitive chip 320 has a relative position.
  • the base 120 (and bottom plate 130) has the ability to move, and the limiting portion 710 is also used to provide support for the photosensitive chip 320 in a direction perpendicular to the bottom plate 130. Under the joint action of the two limiting portions 710, it can be ensured that The photosensitive chip 320 can be "suspended" on the side of the bottom plate 130 where the lens 310 is located.
  • each limiting part 710 includes a first connecting section 711, a deformation section 712 and a second connecting section 713 that are sequentially connected along the optical axis direction of the lens 310.
  • Each first connecting section 711 is fixedly connected to the mounting base 330.
  • the second connecting sections 713 are all fixedly connected to the base 120, so that the limiting portion 710 can provide a mounting function for the connection relationship between the photosensitive chip 320 and the base 120, ensuring that the photosensitive chip 320 and the mounting function can be spaced apart on the bottom plate. 130 on one side.
  • the first connection section 711 and the Fixed connection relationships can be formed between the mounting seats 330 and between the second connection end and the base 120 through bonding or other methods.
  • each deformation section 712 is provided with a plurality of long through holes 712a.
  • Each long through hole 712a extends along the direction of the optical axis, and the plurality of long through holes 712a on each deformation section 712 are spaced apart in a direction perpendicular to the bottom plate 130. distribution, so that the deformation section 712 forms a grid-like structure, and since the deformation section 712 is part of the flexible circuit board 700, its thickness itself is relatively small, which makes the deformation section 712 in the direction perpendicular to the base plate 130.
  • the photosensitive chip 320 not only provides good support, but also allows the deformation section 712 to deform itself, ensuring that the photosensitive chip 320 can form a smooth movable cooperation relationship with the base 120, thereby improving the movement accuracy of the photosensitive chip 320.
  • both the first straight wire segment 511 and the second straight wire segment 521 can be fixed on one of the base 120 and the mounting seat 330 , and the magnet 540 is fixed on the other one of the base 120 and the mounting base 330 to ensure that the first straight wire segment 511 and the second straight wire segment 521 can make the mounting base 330 move relative to the base 120 .
  • both the first straight wire segment 511 and the second straight wire segment 521 can be fixed to the mounting base 330, and the magnet 540 is relatively fixed to the base 120.
  • the base 120 can be used as a component in the lens assembly to form a fixed connection relationship with the housing or middle frame of the electronic device.
  • the base 120 can be used as a reference system.
  • the drive mechanism 500 The position of the magnet 540 is fixed, so that the magnetic field distribution generated by the magnet 540 is unique, and the movement of the magnet 540 relative to the housing and other components of the electronic device may not cause the magnet 540 to be affected by other magnetic components in the electronic device and cause damage to the driving mechanism.
  • the distribution of the magnetic field generated by the magnet 540 in 500 changes, thereby making the motion trajectories of the first straight wire segment 511 and the second straight wire segment 521 more controllable, and the movement accuracy is relatively higher.
  • the obtained jitter direction and size of the lens module can be based on actual conditions such as the size and direction of the magnetic field intensity of the first straight wire segment 511 and the second straight wire segment 521 in the driving mechanism 500 .
  • situation correspondingly control the magnitude and direction of the current input to the first straight wire segment 511 and/or the second straight wire segment 521, so that the driving mechanism 500 can make the mounting base 330 face each other.
  • the base 120 (or the lens 310) generates a displacement with the same magnitude and opposite direction as the aforementioned shake, so that the lens module achieves the purpose of anti-shake.
  • the lens module may also include multiple Hall displacement sensors, and the first straight wire segment 511 and the second straight wire segment 521 are respectively provided with Hall position sensors.
  • the corresponding Hall position sensors Under the action of the corresponding Hall position sensors, a more accurate relative displacement amount and displacement direction between the mounting base 330 and the base 120 can be obtained, so that the corresponding Hall position sensors can be used based on the corresponding Hall position sensors.
  • the detection results of the Er sensor control the output parameters of the driving mechanism 500 through feedback adjustment to prevent the driving mechanism 500 from being affected by unknown factors during the operation process, resulting in differences between the actual driving results and the preset driving results, ensuring that The driving accuracy of the driving mechanism 500 is higher.
  • a Hall sensor may be provided on each side of the first straight wire segment 511 and the second straight wire segment 521.
  • a third straight wire segment 531 may also be provided.
  • the wire segments 531 are correspondingly provided with Hall sensors.
  • the driving mechanism 500 may be provided with a first coil 510, a second coil 520 and a third coil 530 to drive the mounting base 330 to move relative to the base 120.
  • the first coil may be A Hall position sensor is provided inside 510, that is, between the first straight wire segment 511 and the fourth straight wire segment 512, so that the same Hall sensor can be connected to the first straight wire segment 511 and the fourth straight wire segment through the respective detectors.
  • a Hall position sensor can also be disposed correspondingly between the second straight wire segment 521 and the fifth straight wire segment 522 to simultaneously detect the position of the second straight wire segment 521 and the fifth straight wire segment 522 relative to the base 120 position; a Hall position sensor may also be provided between the third straight wire segment 531 and the sixth straight wire segment 532 to simultaneously detect the relative position of the third straight wire segment 531 and the sixth straight wire segment 532 relative to the base 120 position, which can achieve the purpose of high-precision monitoring of the relative position between the mounting base 330 and the base 120 when the number of Hall position sensors is relatively small.
  • the lens module may be provided with a housing 110 , and a light hole may be provided on the housing 110 to ensure that light outside the housing 110 can be incident into the housing 110 .
  • the optical axis of the lens 310 can be made parallel to the light hole of the housing 110, and the lens 310 can be opposite to the light hole to ensure that the light outside the housing 110 can pass through. The light hole enters the housing 110 and enters the photosensitive chip 320 through the lens 310 .
  • the lens module in order to increase the zoom factor of the lens module and reduce the size of the lens module in the light incident direction, optionally, the lens module also includes a multi-curved prism 350.
  • the light incident side of the prism 350 is perpendicular to its light outgoing direction. That is, the multi-curved prism 350 can change the propagation direction of light, so that the optical axis of the lens 310 can be arranged perpendicular to the light incident direction of the lens module.
  • the multi-curved prism 350 can be fixed to the base 120, and at the same time, the multi-curved prism 350 is disposed on the light incident side of the lens 310 to ensure that the light outside the lens module passes through multiple After being emitted from the curved prism 350, it can be incident into the lens 310 and finally be received by the photosensitive chip 320.
  • this application also discloses an electronic device, which includes the lens module disclosed in any of the above embodiments.
  • the electronic device may also include other devices such as batteries, display modules, and processors.

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Abstract

本申请公开一种镜头模组和电子设备，属于通信设备领域，镜头模组包括基座、透镜、感光芯片、安装座和驱动机构，所述透镜安装于所述基座，所述感光芯片固定于所述安装座，且所述感光芯片设置于所述透镜的出光侧，所述安装座相对所述基座活动设置；所述驱动机构包括第一直导线段、第二直导线段和磁体，所述第一直导线段沿垂直于透镜的光轴的第一方向延伸，所述第二直导线段沿垂直于所述第一方向的第二方向延伸，所述磁体位于所述第一直导线段和所述第二直导线段的同一侧，且所述第一直导线段和所述第二直导线段均位于所述磁体的磁场中，所述驱动机构用以驱动所述安装座沿所述第一方向和/或所述第二方向相对所述基座运动。

Description

镜头模组和电子设备
交叉引用
本申请要求在2022年09月23日提交中国专利局、申请号为202211178070.7、发明名称为“镜头模组和电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请属于通信设备技术领域，具体涉及一种镜头模组和电子设备。
背景技术
随着技术的发展，电子设备的影像能力已经逐步成为一种主要用以提升用户体验的功能。防抖是电子设备中影像部分的一项重要能力，目前，通常利用对焦马达等机械器件与镜头模组中的感光芯片连接，在电子设备出现抖动的过程中，利用对焦马达反向地平移感光芯片，实现防抖的目的。但是，这种防抖结构中，对焦马达容易损坏，使用寿命相对较短，且受自身工作原理的限制，对焦马达的防抖精度相对较低。
发明内容
本申请实施例的目的是提供一种镜头模组和电子设备，以解决目前电子设备中用以提供防抖作用的对焦马达的使用寿命相对较短，防抖精度相对较低的问题。
第一方面，本申请实施例公开一种镜头模组，其包括基座、透镜、感光芯片、安装座和驱动机构，其中，
所述透镜安装于所述基座，所述感光芯片固定于所述安装座，且所述感光芯片设置于所述透镜的出光侧，所述安装座相对所述基座活动设置；
所述驱动机构包括第一直导线段、第二直导线段和磁体，所述第一直导 线段沿垂直于透镜的光轴的第一方向延伸，所述第二直导线段沿垂直于所述第一方向的第二方向延伸，所述磁体位于所述第一直导线段和所述第二直导线段的同一侧，且所述第一直导线段和所述第二直导线段均位于所述磁体的磁场中，所述驱动机构用以驱动所述安装座沿所述第一方向和/或所述第二方向相对所述基座运动。
第二方面，本申请实施例公开一种电子设备，其包括上述镜头模组。
本申请实施例公开一种镜头模组，其透镜安装于基座，感光芯片安装于安装座，安装座相对基座活动设置，且安装座通过驱动机构能够相对基座运动。驱动机构中，第一直导线段和第二直导线段垂直设置，且均垂直于透镜的光轴方向，第一直导线段和第二直导线段均位于磁体的磁场中，进而在第一直导线段和/或第二直导线段通电的情况下，可以驱动安装座相对基座沿第一直导线段的延伸方向(即第一方向)和/或第二直导线段的延伸方向(即第二方向)运动，使镜头模组具备防抖功能。并且，在上述镜头模组中，用以提升防抖作用的器件为导线和磁体，二者的使用寿命均相对较长，且二者之间基本不存在相互接触的关系，这可以防止器件间的摩擦作用对防抖精度产生影响，保证镜头模组具有较高的防抖精度。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是本申请实施例公开的镜头模组的结构示意图；
图2和3是本申请实施例公开的镜头模组中部分结构的示意图；
图4是本申请实施例公开的镜头模组中驱动机构的结构示意图。
附图标记说明：
110-壳体、120-基座、130-底板、
310-透镜、320-感光芯片、330-安装座、340-连接器、350-多曲面棱镜、360-红外滤光片、
500-驱动机构、510-第一线圈、511-第一直导线段、512-第四直导线段、520-第二线圈、521-第二直导线段、522-第五直导线段、530-第三线圈、531-第三直导线段、532-第六直导线段、540-磁体、
700-柔性电路板、710-限位部、711-第一连接段、712-变形段、712a-贯穿长孔、713-第二连接段、720-连接部。
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，且“第一”、“第二”等所区分的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。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。
如图1至图4所示，本申请实施例公开一种镜头模组，该镜头模组可以被应用在电子设备中，以为电子设备提供成像作用。镜头模组包括基座120、透镜310、感光芯片320、安装座330和驱动机构500。
其中，基座120为镜头模组中用以提供安装基础作用的器件，其可以采 用金属或塑料等硬质材料形成，以为其他器件提供稳定的安装作用。基座120的具体形状和尺寸等参数均可以根据实际情况确定，考虑到透镜310通常为圆形结构，且感光芯片320通常为矩形结构，为了便于镜头模组中的其他器件安装至基座120，基座120整体上可以为矩形结构，且为了保证基座120不会妨碍感光芯片320进行感光工作，基座120可以为贯穿式结构，进而使自基座120一侧入射的光线能够射入至感光芯片320内。
透镜310用以提供配光作用，透镜310通常可以采用玻璃或树脂等材料形成，透镜310的尺寸可以根据感光芯片320的感光面积对应选定。透镜310的数量可以为一个，为了提升镜头模组的成像效果，透镜310的数量可以为多个，多个透镜310沿直线分布，且多个透镜310的光轴位于同一直线上，多个透镜310可以包括至少一个凸透镜和至少一个凹透镜，当然，多个透镜310中还可以包括其他类型的光学器件，此处不作限定。在组装镜头模组的过程中，透镜310安装在基座120上，具体地，可以使透镜310与基座120固定连接，或者，亦可以利用音圈马达等变焦器件使透镜310能够相对基座120运动，以提供变焦作用，提升镜头模组的适用范围。
感光芯片320用以提供成像作用，其可以将光学图像转换为电信号，且经模数转换将电信号转换成数字信号，利用数字信号处理技术加工处理后，经电子设备的处理器处理后可以被转换为能够在电子设备的显示屏上显示的图像。
安装座330为用以为感光芯片320提供安装基础的器件，且可以作为其他器件与感光芯片320形成连接关系的媒介，防止其他器件直接连接于感光芯片320上，可能会对感光芯片320的性能和使用寿命产生不利影响。为此，安装座330可以为塑料或金属等硬质材料制成的结构，且安装座330可以具有安装平面，且使感光芯片320能够较为可靠地被固定在安装座330的安装平面上。具体地，感光芯片320可以通过粘接等方式与基座120形成固定连接关系。并且，感光芯片320位于透镜310的出光侧，以使自透镜310出射 的光线可以入射至感光芯片320中，用以成像。
另外，镜头模组中还可以包括电路板等器件，电路板用以为感光芯片320等部件供电，且可以作为感光芯片320和安装座330的支撑器件。具体地，电路板可以为柔性电路板700，通过使安装座330的相背两侧均设有柔性电路板700，且使柔性电路板700均向透镜310所在的方向延伸，在各柔性电路板700与基座120和安装座330均连接的情况下，利用柔性电路板700在自身长度方向上具备抗弯折作用，为重量相对较小的安装座330和感光芯片320提供支撑作用，使感光芯片320“悬空”设置，进而保证感光芯片320和安装座330均与基座120活动设置，进而可以通过改变感光芯片320与透镜310之间的相对位置，达到防抖作用。相应地，可以使感光芯片320与柔性电路板700电连接，使柔性电路板700可以为感光芯片320提供供电作用。当然，为了进一步提升感光芯片320的安装稳定性，在本申请的另一实施例中，还可以通过弹性连接件使感光芯片320与基座120形成连接关系，在为感光芯片320提供支撑作用的同时，不限制感光芯片320与基座120之间的相对运动。
如图4所示，驱动机构500包括第一直导线段511、第二直导线段521和磁体540，第一直导线段511沿垂直于透镜310的光轴的第一方向延伸，第二直导线段521沿第二方向延伸，且第一方向和第二方向垂直设置，也即第一直导线段511和第二直导线段521垂直设置，且二者构成的平面垂直于透镜310的光轴。同时，磁体540可以提供磁场，且磁体540位于第一直导线段511和第二直导线段521的同一侧，进而使第一直导线段511和第二直导线段521均位于磁体540的磁场中，从而在第一直导线段511和第二直导线段521通电的情况下，使第一直导线段511和第二直导线段521能够在磁场中运动，提供驱动作用力，以使驱动机构500能够驱动安装座330沿第一方向和/或第二方向相对基座120运动。
具体来说，驱动机构500中，磁体540用以提供磁场，第一直导线段511 和第二直导线段521中均可以被通入电流，因此，第一直导线段511和第二直导线段521二者与磁体540为相互作用关系，进而，在组装镜头模组的过程中，可以使第一直导线段511和第二直导线段521作为一个整体，且使二者与安装座330和基座120中的一者形成相对固定关系，同时，使磁体540与安装座330和基座120中的另一者形成相对固定关系，保证第一直导线段511和第二直导线段521中的至少一者在通电的情况下，能够在磁体540产生的磁场中运动，且带动安装座330相对基座120运动。
更具体地说，磁体540可以为第一直导线段511和第二直导线段521提供沿透镜310的光轴所在的方向的磁场作用力。并且，为了保证感光芯片320的偏移方向多样化，第一直导线段511和第二直导线段521相互独立。也即，在需要使感光芯片320相对基座120运动的情况下，可以单独向第一直导线段511内通入电流，亦可以单独向第二直导线段521内通入电流，或者，还可以同时向第一直导线段511和第二直导线段521内通入电流。同时，可以根据感光芯片320所需产生的位移的大小和方向，对应地控制通入第一直导线段511内和第二直导线段521内的电流的大小和方向，保证镜头模组的防抖精度。
如上所述，第一直导线段511沿第一方向延伸，第二直导线段521沿第二方向延伸，为此，在仅有第一直导线段511通电的情况下，在磁体540的磁场作用下，第一直导线段511可以使安装座330相对基座120沿第二方向运动；在仅有第二直导线段521通电的情况下，在磁体540的磁场作用下，第二直导线段521可以使安装座330相对基座120沿第一方向运动；在第一直导线段511和第二直导线段521均通电的情况下，在磁体540的磁场作用下，可以使安装座330相对基座120沿第一方向和第二方向的合方向运动，且运动方向的具体情况，可以根据第一直导线段511和第二直导向段内通入的电流的大小和方向，结合矢量合成对应确定，此处不再详细解释。
本申请实施例公开一种镜头模组，其透镜310安装于基座120，感光芯 片320安装于安装座330，安装座330相对基座120活动设置，且安装座330通过驱动机构500能够相对基座120运动。驱动机构500中，第一直导线段511和第二直导线段521垂直设置，且均垂直于透镜310的光轴方向，第一直导线段511和第二直导线段521均位于磁体540的磁场中，进而在第一直导线段511和/或第二直导线段521通电的情况下，可以驱动安装座330相对基座120沿第一直导线段511的延伸方向(即第一方向)和/或第二直导线段521的延伸方向(即第二方向)运动，使镜头模组具备防抖功能。并且，在上述镜头模组中，用以提升防抖作用的器件为导线和磁体540，二者的使用寿命均相对较长，且二者之间基本不存在相互接触的关系，这可以防止器件间的摩擦作用对防抖精度产生影响，保证镜头模组具有较高的防抖精度。
另外，镜头模组中还可以设有红外滤光片，红外滤光片用以提供滤光作用，以提升镜头模组的成像效果，且红外滤光片还可以提供防尘作用，进而为感光芯片320提供防护作用，防止灰尘等杂质对红外滤光片的成像精度产生不良影响。具体地，红外滤光片位于透镜310与感光芯片320之间，可选地，红外滤光片亦可以安装在安装座330上，且使红外滤光片与感光芯片320相对固定。
如上所述，在第一直导线段511和第二直导线段521的作用下，可以使安装座330相对基座120沿第一方向和/或第二方向运动，简单地说，第一直导线段511和第二直导线段521对安装座330的作用为驱动安装座330沿某一直线方向相对基座120位移。但是，在电子设备或镜头模组的工作过程中，还可能存在扭转抖动的情况，为此，在本申请实施例公开的镜头模组中，驱动机构500还可以包括第三直导线段531，第三直导线段531平行于第一直导线段511设置，也即，第三直导线段531亦沿第一方向延伸。并且，第三直导线段531和第一直导线段511沿第一方向分布，且第三直导线段531亦位于磁体540的磁场中，这使得第三直导线段531和第一直导线段511具备向安装座330施加方向相反的驱动作用力，从而使安装座330能够以第一直 导线段511和第三直导线段531之间的某一位置为中心，且沿围绕透镜310的光轴的方向相对透镜310旋转，进而使镜头模组具备旋转防抖的功能，提升镜头模组的防抖性能。
更具体地说，第一直导线段511和第三直导线段531可以位于同一磁场中，具体来说，可以使第一直导线段511和第三直导线段531均位于同一磁体540产生的磁场中，保证二者所受的磁场作用力的作用方向相同；或者，第一直导线段511和第三直导线段531可以分别对应设置有至少一个磁体540，通过使二者对应的磁体540的磁极相同，亦可以保证二者所受的磁场作用力的作用方向相同。
在本申请的另一实施例中，可以使第一直导线段511和第三直导线段531分别位于不同的磁场中，具体来说，通过为第一直导线段511和第三直导线段531分别对应设置至少一个磁体540，且使二者对应的磁体540的磁极相反，即可使第一直导线段511和第三直导线段531所受的磁场作用力的作用方向相反。
另外，对于第一直导线段511和第三直导线段531所受的磁场作用力的大小而言，此处不作限定。为了便于控制安装座330的运动情况，可以使第一直导线段511和第三直导线段531所受的磁场作用力的大小相等。
基于上述实施例，在第一直导线段511和第三直导线段531所受的磁场方向相同的情况下，通过控制二者内通入方向相反的电流，可以使第一直导线段511和第三直导线段531分别为安装座330提供方向相反的作用力，在两个方向相反的作用力的作用下，可以使安装座330沿围绕透镜310的光轴的方向相对透镜310旋转。相应地，可以基于第一直导线段511和第三直导线段531所受磁场作用强度等实际因素，对应地控制二者中通入的电流大小，实现控制安装座330相对透镜310的旋转角度的目的。
在第一直导线段511和第三直导线段531所受的磁场方向相反的情况下，通过控制二者内通入方向相同的电流，亦可以使第一直导线段511和第三直 导线段531能够为安装座330提供方向相反的作用力，在两个方向相反的作用力的作用下，使安装座330沿围绕透镜310的光轴的方向相对透镜310旋转。相应地，可以基于第一直导线段511和第三直导线段531所受磁场作用强度等实际因素，对应地控制二者中通入的电流大小，实现控制安装座330相对透镜310的旋转角度的目的。在本实施例中，若其他条件允许，可以使第一直导线段511和第二直导线段521串联，以降低接电难度。或者，亦可以使第一直导线段511和第三直导线段531相互独立，也即，二者独立供电，从而在控制安装座330相对基座120旋转的过程中，可以提升安装座330的旋转精度，进而提升镜头模组的防抖精度。
在镜头模组包括第三直导线段531的情况下，可以使第二直导线段521位于第一直导线段511背离第三直导线段531的一侧。在本申请的另一实施例中，沿第一方向，可以使第二直导线段521位于第一直导线段511和第三直导线段531之间，在这种情况下，第一直导线段511和第三直导线段531位于第二直导线段521的相背两侧，从而在驱动安装座330相对基座120旋转时，以及在驱动安装座330相对基座120平移时，均可以使安装座330的受力均匀性相对更好，提升安装座330的动作稳定性。
更具体地，可以使第一直导线段511和第三直导线段531以第二直导线段521为对称轴对称设置，且在安装座330(或感光芯片320)的中心位于透镜310的光轴上的情况下，可以使第二直导线段521相对透镜310(和感光芯片320)居中设置，这可以进一步提升感光芯片320(和安装座330)的受力均匀性，且可以提升感光芯片320的动作精度，进而提升镜头模组的防抖性能。
如上所述，第一直导线段511和第二直导线段521均位于磁体540的磁场中，为此，可以使磁体540的数量为一个，且使该磁体540的尺寸相对较大，使磁体540可以覆盖第一直导线段511和第二直导线段521所在的区域，进而为第一直导线段511和第二直导线段521提供磁场作用。为了提升电子 设备中驱动机构500的结构紧凑性，且减小驱动机构500所占得空间大小，可选地，磁体540的数量为多个，且第一直导线段511和第二直导线段521均配设有至少一个磁体540。
也即，第一直导线段511和第二直导线段521均独立地配设有磁体540，从而可以根据第一直导线段511和第二直导线段521各自的尺寸和位置对应地配合磁体540，使第一直导线段511和第二直导线段521占据的空间与磁体540占据的空间对应，尽量减少磁体540所占的空间。并且，在采用上述技术方案的情况下，还可以根据实际需求，选择性地为第一直导线段511和第二直导线段521配合参数不同的磁体540，增强镜头模组的便利性。
更具体地，可以根据第一直导线段511和第二直导线段521各自的长度，为第一直导线段511和第二直导线段521均对应地设置一个磁体540，保证对应的磁体540可以为第一直导线段511和第二直导线段521上的各处分别提供较为均匀的磁场作用，提升第一直导线段511和第二直导线段521的受力均匀性。
另外，在采用上述技术方案的情况下，若镜头模组还包括第三直导线段531，还便于第三直导线段531的磁场的形成过程的进行。具体地，可以使第一直导线段511、第二直导线段521和第三直导线段531分别独立地配设有至少一个磁体540，在这种情况下，使得多个磁体540占据的空间相对较小，便于提升镜头模组内的空间利用率。
如上所述，驱动机构500包括第一直导线段511，且可以根据安装座330的位移，通过向第一直导线段511内通入预设大小和方向的电流，使第一直导线段511能够在磁场内运动，且使安装座330相对基座120产生对应的位移。在为第一直导线段511接电的过程中，具体可以利用导线使第一直导线段511与电子设备的电池或电路板电连接，以为第一直导线段511输送预设大小和方向的电流。
如图4所示，在本申请的另一实施例中，驱动机构500包括第一线圈510， 第一线圈510包括相互平行且相互导通的第四直导线段512和上述第一直导线段511，第四直导线段512和第一直导线段511均配设有磁体540，且通过对第一直导线段511和第四直导线段512配设的磁体540的磁极进行设计，可以使第四直导线段512所受的磁场方向与第一直导线段511所受的磁场方向相反，进而使首尾连接的第一直导线段511和第四直导线段512能够在对应的磁场的作用下，为安装座330提供方向相同的驱动作用。在采用本申请实施例的情况下，可以提升安装座330的受力作用大小，并且，通过为第一直导线段511和第四直导线段512分别配设磁体540，且使二者所配设的磁体540朝向安装座330的磁极相反，还可以提升与第一线圈510对应的磁体540产生的磁场的规整程度，防止磁场紊乱对第一线圈510的动作精度产生不利影响。
进一步地，第一线段可以包括多个第一直导线段511和多个第四直导线段512，且多个第一直导线段511和多个第四直导线段512交替地首尾连接，以进一步提升第一线圈510为安装座330提供的驱动作用大小和稳定性。
并且，基于上述实施例，驱动机构500还包括第二线圈520，第二线圈520包括第五直导线段522和上述第二直导线段521，第二直导线段521与第五直导线段522首尾连接，且二者分别配设有磁体540，以使第二直导线段521所受的磁场作用方向与第五直导线段522所受的磁场作用方向相反，进而在向第二线圈520通入电流的情况下，可以使第二直导线段521和第五直导线段522能够为安装座330提供方向相同的驱动作用力。相似地，第二线圈520亦可以包括多个第二直导线段521和多个第五直导线段522，且多个第二直导线段521和多个第五直导线段522交替地首尾连接，以进一步提升第二线圈520为安装座330提供的驱动作用大小和稳定性。
另外，基于上述实施例，驱动机构500还包括第三线圈530，第三线圈530包括第六直导线段532和上述第三直导线段531，第三直导线段531与第六直导线段532首尾连接，且二者分别配设有磁体540，以使第三直导线段 531所受的磁场作用方向与第六直导线段532所受的磁场作用方向相反，进而在向第三线圈530通入电流的情况下，可以使第三直导线段531和第六直导线段532能够为安装座330提供方向相同的驱动作用力。相似地，第三线圈530亦可以包括多个第三直导线段531和多个第六直导线段532，且多个第三直导线段531和多个第六直导线段532交替地首尾连接，以进一步提升第三线圈530为安装座330提供的驱动作用大小和稳定性。
当然，在采用上述实施例公开的技术方案的情况下，用以与第二线圈520和第三线圈530分别配合的磁体540产生的磁场不可避免地会对第一线圈510产生磁场作用，为此，在镜头模组的设计过程中，可以对第一线圈510、第二线圈520和第三线圈530各自所受的磁场作用进行测试和调控，保证第一线圈510、第二线圈520和第三线圈530上对应的部分所受的磁场强度的大小和方向均基本相同，进而保证在利用驱动机构500使安装座330相对基座120运动时的精度较高。
如上所述，透镜310可以安装在基座120上，可选地，镜头模组还包括底板130，底板130可以为透镜310和安装座330等器件提供承载作用，且便于镜头模组形成一整体式结构件。底板130可以采用金属或塑料等硬质材料形成，且基座120可以支撑在底板130上，且可以通过粘接等方式，使基座120与底板130形成固定连接关系。另外，镜头模组还可以包括壳体110，壳体110罩设在基座120和透镜310之外，安装座330、感光芯片320和驱动机构500等结构亦可以设置于壳体110之内，以利用壳体110为前述器件提供防护作用；并且，通过使壳体110与底板130固定连接，使镜头模组内的其他器件可以被封装在壳体110和底板130围成的空间之内。当然，为了保证外界的光线可以能够入射至透镜310中，且被感光芯片320所获取，壳体110上需要设置通光孔，同时，为了防止外界的灰尘等杂质自壳体110的通光孔进入壳体110之内，通光孔处可以设置有红外滤光片360。
并且，在上述实施例中，感光芯片320可以通过柔性电路板700与电子 设备的电池等供电器件电性连接，更具体地，镜头模组还可以包括连接器340，感光芯片320可以通过柔性电路板700与连接器340电性连接，且连接器340可以通过与电子设备的主板等器件相互连接，使电子设备的电池可以通过主板为感光芯片320供电，且适应电子设备内的连接规则。
如上所述，感光芯片320的相背两侧均可以设置有柔性电路板700，且在两侧的柔性电路板700的作用下，使感光芯片320能够“悬空”设置。更具体地，底板130中透镜310所在的一侧设置有两个柔性电路板700，两个柔性电路板700分别设置于透镜310的相背两侧，且使各柔性电路板700均与感光芯片320和基座120连接，以为感光芯片320在垂直于底板130的方向上提供支撑作用，使感光芯片320与底板130相互间隔，进而保证感光芯片320具备相对底板130运动的能力，以使镜头模组能够进行防抖工作。
为了提升柔性电路板700的变形能力，以适应安装座330与基座120之间的相对运动形式，可选地，柔性电路板700可以包括限位部710和连接部720，其中，连接部720位于透镜310和底板130之间，连接部720可以与感光芯片320和连接器340均连接，用以作为感光芯片320和连接器340之间电信号和控制信号等的传输媒介。透镜310的相背两侧均设有限位部710，且各限位部710均与底板130间隔设置，以使感光芯片320能够通过限位部710与底板130相互间隔，保证感光芯片320具备相对基座120(和底板130)运动的能力，且限位部710还用以在垂直于底板130的方向上为感光芯片320提供支撑作用，在两个限位部710的共同作用下，可以保证感光芯片320可以“悬空”地设置在底板130中透镜310所在的一侧。
并且，各限位部710均包括沿透镜310的光轴方向依次连接的第一连接段711、变形段712和第二连接段713，各第一连接段711均与安装座330固定连接，各第二连接段713均与基座120固定连接，从而使限位部710可以为感光芯片320和基座120之间的连接关系提供安装作用，保证感光芯片320和安装作可以间隔地设置在底板130的一侧。具体地，第一连接段711和安 装座330之间，以及第二连接端与基座120之间均可以通过粘接等方式形成固定连接关系。
同时，各变形段712均设有多个贯穿长孔712a，各贯穿长孔712a均沿光轴方向延伸，且各变形段712上的多个贯穿长孔712a均沿垂直于底板130的方向间隔分布，从而使变形段712形成类似于格栅状结构，且由于变形段712属于柔性电路板700的一部分，其厚度本身也相对较小，这使得变形段712在垂直于底板130的方向上为感光芯片320提供良好的支撑作用的同时，还可以使变形段712在自身形变的作用下，保证感光芯片320能够与基座120形成顺畅的活动配合关系，提升感光芯片320的动作精度。
如上所述，在利用驱动机构500使安装座330相对基座120运动的情况下，第一直导线段511和第二直导线段521均可以固定在基座120和安装座330中的一者上，且使磁体540固定在基座120和安装座330中的另一者上，保证第一直导线段511和第二直导线段521能够使安装座330相对基座120运动。在本申请的一个具体实施例中，可以使第一直导线段511和第二直导线段521均固定于安装座330，且使磁体540与基座120相对固定，在这种情况下，由于基座120可以作为镜头组件中用以与电子设备的外壳或中框等部件形成固定连接关系的部件，为此，可以以基座120为参考系，在这种情况下，驱动机构500中的磁体540的位置固定，从而使磁体540产生的磁场分布情况唯一，不会因磁体540相对电子设备的外壳等部件运动，而可能导致磁体540受电子设备内的其他磁性元件的影响，造成驱动机构500中的磁体540产生的磁场分布情况发生变化，进而使第一直导线段511和第二直导线段521的运动轨迹更为可控，且动作精度相对更高。
在上述实施例中，可以根据所获取的镜头模组的抖动方向和大小，基于驱动机构500中第一直导线段511和第二直导线段521各自所受的磁场强度的大小和方向等实际情况，对应地控制输入至第一直导线段511和/或第二直导线段521内的电流的大小和方向，使驱动机构500能够使安装座330相对 基座120(或透镜310)产生与前述抖动大小相同，且方向相反的位移，使镜头模组实现防抖目的。
为了更精准地控制安装座330与基座120之间的相对位移的参数，可选地，镜头模组还可以包括多个霍尔位移传感器，且第一直导线段511和第二直导线段521分别对应地设置有霍尔位置传感器，在对应的霍尔位置传感器的作用下，可以得到安装座330和基座120之间更为精准的相对位移量和位移方向，从而可以基于对应的霍尔传感器的检测结果，通过反馈调节的方式，控制驱动机构500的输出参数，以防止驱动机构500在动作过程中，受未知因素影响，导致实际驱动结果和预设驱动结果之间存在差异，保证驱动机构500的驱动精度更高。
更具体地，可以在第一直导线段511和第二直导线段521各自的一侧设置霍尔传感器，在镜头模组设有第三直导线段531的情况下，亦可以为第三直导线段531对应地设置霍尔传感器。另外，在上述实施例中，驱动机构500可以设有第一线圈510、第二线圈520和第三线圈530，以驱动安装座330相对基座120运动，在此情况下，可以在第一线圈510的内侧，即第一直导线段511和第四直导线段512之间设置霍尔位置传感器，从而使同一霍尔传感器可以通过分别检测器与第一直导线段511和第四直导线段512之间的间距获取第一线圈510与基座120之间的相对位置，提升对第一线圈510的位置的监测精度。相似地，第二直导线段521和第五直导线段522之间亦可以对应设置有霍尔位置传感器，以同时检测第二直导线段521和第五直导线段522二者相对基座120的位置；第三直导线段531和第六直导线段532之间亦可以对应设置有霍尔位置传感器，以同时检测第三直导线段531和第六直导线段532二者相对基座120的位置，这可以在霍尔位置传感器的设置数量相对较少的情况下，实现对安装座330与基座120之间相对位置的高精度监测的目的。
如上所述，镜头模组之外的光线可以入射至透镜310中，以被位于透镜 310的出光侧的感光芯片320所接收。并且，在上述实施例中，镜头模组可以设有壳体110，且可以通过在壳体110上设置通光孔的方式，保证壳体110之外的光线能够入射至壳体110之内。基于此，在组装镜头模组的过程中，可以使透镜310的光轴平行于壳体110的通光孔，且使透镜310与通光孔相对，保证壳体110之外的光线可以自通光孔入射至壳体110之内，且经透镜310入射至感光芯片320。
在本申请的另一实施例中，为了提升镜头模组的变焦倍数，且减小镜头模组在入光方向上的尺寸大小，可选地，镜头模组还包括多曲面棱镜350，多曲面棱镜350的入光方面垂直于其出光方向，也即，多曲面棱镜350能够改变光线的传播方向，从而能够可以使透镜310的光轴垂直于镜头模组的入光方向设置。
并且，通过该粘接或卡接等方式，可以使多曲面棱镜350固定于基座120，同时，使多曲面棱镜350设置于透镜310的入光侧，保证镜头模组之外的光线经多曲面棱镜350出射后，可以入射至透镜310之内，且最终被感光芯片320所接收。
基于上述任一实施例，本申请还公开一种电子设备，其包括上述任一实施例公开的镜头模组，当然，电子设备还可以包括电池、显示模组和处理器等其他器件，考虑文本简洁，此处不再一一介绍。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如， 可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
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 (10)

  1. 一种镜头模组，包括基座(120)、透镜(310)、感光芯片(320)、安装座(330)和驱动机构(500)，其中，
    所述透镜(310)安装于所述基座(120)，所述感光芯片(320)固定于所述安装座(330)，且所述感光芯片(320)设置于所述透镜(310)的出光侧，所述安装座(330)相对所述基座(120)活动设置；
    所述驱动机构(500)包括第一直导线段(511)、第二直导线段(521)和磁体(540)，所述第一直导线段(511)沿垂直于透镜(310)的光轴的第一方向延伸，所述第二直导线段(521)沿垂直于所述第一方向的第二方向延伸，所述磁体(540)位于所述第一直导线段(511)和所述第二直导线段(521)的同一侧，且所述第一直导线段(511)和所述第二直导线段(521)均位于所述磁体(540)的磁场中，所述驱动机构(500)用以驱动所述安装座(330)沿所述第一方向和/或所述第二方向相对所述基座(120)运动。
  2. 根据权利要求1所述的镜头模组，其中，所述驱动机构(500)还包括第三直导线段(531)，所述第三直导线段(531)平行于所述第一直导线段(511)设置，且二者沿所述第一方向分布，所述第三直导线段(531)位于所述磁体(540)的磁场中；
    在所述第一直导线段(511)和所述第三直导线段(531)所受的磁场方向相同的情况下，控制二者内通入方向相反的电流，或者，在所述第一直导线段(511)和所述第三直导线段(531)所受的磁场方向相反的情况下，控制二者内通入的电流的方向相同，使所述驱动机构(500)驱动所述安装座(330)沿围绕所述透镜(310)的光轴的方向相对所述透镜(310)旋转。
  3. 根据权利要求2所述的镜头模组，其中，沿所述第一方向，所述第二直导线段(521)位于所述第一直导线段(511)和所述第三直导线段(531)之间。
  4. 根据权利要求1所述的镜头模组，其中，所述磁体(540)的数量为多个，所述第一直导线段(511)和所述第二直导线段(521)均配设有至少一个所述磁体(540)。
  5. 根据权利要求1所述的镜头模组，其中，所述驱动机构(500)包括第一线圈(510)，所述第一线圈(510)包括相互平行且相互导通的第四直导线段(512)和所述第一直导线段(511)，所述第四直导线段(512)和所述第一直导线段(511)均配设有所述磁体(540)，且所述第四直导线段(512)所受的磁场方向与所述第一直导线段(511)所受的磁场方向相反。
  6. 根据权利要求1所述的镜头模组，其中，所述镜头模组包括底板(130)、连接器(340)和柔性电路板(700)，所述基座(120)支撑于所述底板(130)，所述感光芯片(320)通过所述柔性电路板(700)与所述连接器(340)电性连接；
    所述柔性电路板(700)包括限位部(710)和连接部(720)，所述连接部位于所述透镜(310)和所述底板(130)之间，所述透镜(310)的相背两侧均设有所述连接部(720)，且各所述限位部(710)均与所述底板(130)间隔设置；
    各所述限位部(710)均包括沿所述透镜(310)的光轴方向依次连接的第一连接段(711)、变形段(712)和第二连接段(713)，各所述第一连接段(711)均与所述安装座(330)固定连接，各所述第二连接段(713)均与所述基座(120)固定连接，各所述变形段(712)均设有多个沿所述光轴方向延伸的贯穿长孔(712a)，且任一所述变形段(712)上的多个所述贯穿长孔(712a)均沿垂直于所述底板(130)的方向间隔分布。
  7. 根据权利要求1所述的镜头模组，其中，所述第一直导线段(511)和所述第二直导线段(521)均固定于所述安装座(330)，所述磁体(540)与所述基座(120)相对固定。
  8. 根据权利要求1所述的镜头模组，其中，所述镜头模组还包括多个霍尔位置传感器，所述第一直导线段(511)和所述第二直导线段(521)分别对应地设置有所述霍尔位置传感器。
  9. 根据权利要求1所述的镜头模组，其中，所述镜头模组还包括多曲面棱镜(350)，所述多曲面棱镜(350)的入光方向垂直于其出光方向，所述多曲面棱镜(350)固定于所述基座(120)，且所述多曲面棱镜(350)设置于所述透镜(310)的入光侧。
  10. 一种电子设备，包括权利要求1-9任意一项所述的镜头模组。
PCT/CN2023/120258 2022-09-23 2023-09-21 镜头模组和电子设备 WO2024061301A1 (zh)

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