WO2022037316A1 - 摄像头马达、摄像头模组和电子装置 - Google Patents

摄像头马达、摄像头模组和电子装置 Download PDF

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Publication number
WO2022037316A1
WO2022037316A1 PCT/CN2021/105814 CN2021105814W WO2022037316A1 WO 2022037316 A1 WO2022037316 A1 WO 2022037316A1 CN 2021105814 W CN2021105814 W CN 2021105814W WO 2022037316 A1 WO2022037316 A1 WO 2022037316A1
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WO
WIPO (PCT)
Prior art keywords
mounting portion
camera
base
camera motor
side wall
Prior art date
Application number
PCT/CN2021/105814
Other languages
English (en)
French (fr)
Inventor
杨松
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to EP21857411.9A priority Critical patent/EP4195648A4/en
Publication of WO2022037316A1 publication Critical patent/WO2022037316A1/zh
Priority to US18/090,735 priority patent/US20230141509A1/en

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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
    • H04N23/60—Control of cameras or camera modules
    • H04N23/67—Focus control based on electronic image sensor signals
    • H04N23/675—Focus control based on electronic image sensor signals comprising setting of focusing regions
    • 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
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
    • G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
    • G01R33/07—Hall effect devices
    • G01R33/072—Constructional adaptation of the sensor to specific applications

Definitions

  • the present application relates to the field of electronic technology, and in particular, to a camera motor, a camera module and an electronic device.
  • the camera function of electronic devices such as mobile phones is realized by the automatic focusing of the camera module, and the camera motor is an indispensable core component of the automatic focusing of the camera module.
  • the conventional motor design has a bottleneck in the height dimension, which cannot meet the design requirements of thin and light electronic products such as mobile phones.
  • Embodiments of the present application provide a camera motor, a camera module, and an electronic device.
  • the camera motor of the embodiment of the present application is used in a camera module, and the camera motor includes:
  • a base the bottom surface of the base is recessed to form an accommodating groove, the accommodating groove penetrates one side of the base, and the accommodating groove is used for accommodating the filter module, the image sensor and the sensor of the camera module at least one of the circuit boards;
  • the carrier for carrying a lens
  • the carrier is disposed in the base and can move along the optical axis of the lens in the base
  • a driving part which is connected to the carrier and used to drive the carrier to move along the optical axis of the lens in the base.
  • At least one of a filter module, an image sensor, and a sensor circuit board is used to accommodate at least one of the filter module, the image sensor, and the sensor circuit board.
  • the electronic device of the embodiment of the present application includes a casing and the camera module of the above-mentioned embodiments, and the camera module is located in the casing.
  • FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application
  • FIG. 2 is a schematic three-dimensional structure diagram of a camera module according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an exploded structure of a camera module according to an embodiment of the present application.
  • Fig. 4 is the front view of the camera module in Fig. 2;
  • FIG. 5 is a schematic three-dimensional structure diagram of a camera motor according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of an exploded structure of a camera motor according to an embodiment of the present application.
  • Fig. 7 is the top view of the camera motor in Fig. 5;
  • FIG. 8 is a schematic cross-sectional view of the camera motor in FIG. 7 along line VIII-VIII;
  • Fig. 9 is the front view of the camera motor in Fig. 5;
  • Figure 10 is a rear view of the camera motor in Figure 5;
  • FIG. 11 is a schematic structural diagram of a base of a camera motor according to an embodiment of the present application.
  • Figure 12 is a bottom view of the base of the camera motor in Figure 11;
  • FIG. 13 is a schematic structural diagram of a carrier of a camera motor according to an embodiment of the present application.
  • FIG. 14 is a bottom view of the carrier of the camera motor of FIG. 13 .
  • Camera motor 100 base 10, accommodating groove 101, first mounting portion 11, first bottom surface 111, first mounting cavity 112, first top surface 113, side wall 114, first through hole 115, groove 116, bearing
  • Electronic device 2000 housing 3000 .
  • the camera motor of the embodiment of the present application includes a base, a bearing member and a driving component, and an accommodating groove is recessed on the bottom surface of the base, and the accommodating groove penetrates one side of the base.
  • the accommodating slot is used for accommodating at least one of the filter module, the image sensor and the sensor circuit board of the camera module.
  • the carrier is used for carrying the lens, and the carrier is arranged in the base and can move along the optical axis of the lens in the base.
  • the driving part is connected to the carrier and used to drive the carrier to move along the optical axis of the lens in the base.
  • the base includes a first mounting portion and a second mounting portion, the second mounting portion is connected to one side of the first mounting portion, and the first mounting portion includes a first bottom surface,
  • the second mounting portion includes a second bottom surface, the position of the first bottom surface is lower than the position of the second bottom surface, and the inner surface of the accommodating groove includes the side surface of the second mounting portion and the first bottom surface. underside.
  • the first mounting portion includes a first top surface
  • the second mounting portion includes a second top surface
  • the first top surface and the second top surface are flush.
  • the carrier includes a first carrier portion and a second carrier portion connected to the first carrier portion, the first mounting portion is formed with a first mounting cavity, and the second mounting portion is formed There is a second installation cavity, the first carrying part is installed in the first installation cavity, the second carrying part is installed in the second installation cavity, and the first carrying part is used to carry the lens , the second bearing portion is connected to the driving component.
  • the first bearing portion is formed with a mounting hole
  • the mounting hole is used for mounting the lens
  • the central axis of the mounting hole coincides with the optical axis of the lens
  • the first installation portion is formed with a first through hole penetrating the first bottom surface, the first through hole communicates with the first installation cavity and the accommodating groove and is connected with the first through hole.
  • the mounting holes are concentric.
  • the driving component includes a coil and a first magnetic member, the coil is mounted on the second mounting portion, the first magnetic member is fixedly mounted on the second bearing portion, and the first magnetic member is fixedly mounted on the second bearing portion.
  • a magnetic member is disposed opposite to the coil, and the coil is energized so that the first magnetic member drives the carrier to move along the optical axis of the lens.
  • the driving component further includes a circuit board mounted on the side wall of the second mounting portion, the coil is mounted on the circuit board and electrically connected to the circuit board connect.
  • a second through hole is formed on a side wall of the second mounting portion, and the coil is located in the second through hole.
  • the circuit board includes a first portion and a second portion that are perpendicular to each other
  • the second mounting portion includes a first side wall and a second side wall that are perpendicular and intersecting with each other, the first side wall , the second side wall and the second bottom surface together form the second installation cavity, the first part is installed on the first side wall, and the second part is installed on the second side wall above, the coil is mounted on the first part.
  • positioning bosses are formed on both the first side wall and the second side wall, positioning holes are formed on both the first part and the second part, and the positioning bosses are formed on both.
  • the platform is matched with the positioning hole.
  • the camera motor further includes a reinforcing plate, the first portion is mounted on the reinforcing plate, and the reinforcing plate is mounted on the second mounting portion.
  • a first installation groove is formed on the second bearing portion, and the first magnetic member is disposed in the first installation groove.
  • the camera motor further includes a position detection component
  • the position detection component includes a detection member disposed on the second mounting portion and a sensing member disposed on the second bearing portion
  • the detection part is used for sensing the position of the sensing part, so as to detect the relative position of the carrier and the base.
  • the detection member includes a Hall sensor
  • the sensing member includes a second magnetic member
  • the Hall sensor detects the relationship between the Hall sensor and the second magnetic field by sensing the strength of the magnetic field. The relative position of the component is detected, so as to detect the relative position of the carrier and the base.
  • a third through hole is further formed on a side wall of the second mounting part, the Hall sensor is located in the third through hole, and a second through hole is formed on the second bearing part an installation groove, and the second magnetic member is arranged in the second installation groove.
  • the detection member includes an infrared sensor
  • the sensing member includes a reflector disposed on the second bearing portion and capable of reflecting infrared light.
  • the camera module of the embodiment of the present application includes at least one of the camera motor and the filter module, the image sensor and the sensor circuit board of the embodiment of the present application, the filter module, the image sensor and the sensor circuit board in the At least one is accommodated in the accommodating groove.
  • the electronic device of the embodiment of the present application includes a casing body and the camera module of the embodiment of the present application, and the camera module is located in the casing body.
  • the electronic device 2000 includes the camera module 1000 and the casing 3000 according to the embodiment of the present application.
  • the camera module 1000 is disposed in the casing 3000, and the camera module 1000 is used for receiving external light to perform imaging, so that the electronic device 2000 has a shooting function.
  • a camera module 1000 includes a camera motor 100 , a filter module 200 , an image sensor 300 , a sensor circuit board 400 and a lens 500 .
  • the lens 500, the filter module 200 and the image sensor 300 are all arranged on the camera motor 100.
  • the camera motor 100 is used to drive the lens 500 to move along the optical axis X of the lens 500 to realize the automatic focusing of the camera module 1000.
  • the filter module 200 and The image sensor 300 is located on the optical path of the lens 500 , the image sensor 300 is located under the filter module 200 , and the image sensor 300 is arranged on the sensor circuit board 400 .
  • the light entering from the lens 500 is filtered by the filter module 200 and can be filtered by the image sensor 300 receive to achieve imaging.
  • the electronic device 2000 in the embodiments of the present application includes, but is not limited to, mobile terminals such as mobile phones, tablets, and/or other portable electronic devices with photographing and/or camera functions, and herein, the camera module 1000 may be the electronic device 200 autofocus camera in . It can be understood that, in an electronic device 2000, there may be only one camera module 1000 or a plurality of camera modules 1000 at the same time, which is not specifically limited herein.
  • the camera motor 100 includes a base 10 , a carrier 20 , a driving part 30 and a casing 40 .
  • the carrier 20 is installed in the base 10
  • the driving part 30 is connected to the carrier 20
  • the casing 40 is covered on the base 10 .
  • the carrier 20 is used to carry the lens 500
  • the driving component 30 is used to drive the carrier 20 to move so as to drive the lens 500 to move along the optical axis X of the lens 500 .
  • an accommodating groove 101 is recessed on the bottom surface of the base 10 , and the accommodating groove 101 penetrates one side of the base 10 .
  • the accommodating slot 101 can be used for at least one of the filter module 200 , the image sensor 300 and the sensor circuit board 400 .
  • the filter module 200 and the image sensor 300 are both accommodated in the accommodating groove 101 , and the sensor circuit board 300 is located outside the accommodating groove 101 .
  • the accommodating slot 101 can also accommodate only the filter module 200 or the image sensor 300 or the sensor circuit board 400, or only the filter module 200 and the image sensor 300, or only the filter module 200 and the image sensor 300.
  • the filter module 200 may include a bracket 201 and a filter 202 , the filter 202 is disposed on the bracket 201 , the bracket 201 is accommodated in the accommodating slot 101 , and the image sensor 300 is located below the bracket 201 .
  • the specific structure of the filter module 200 may not be limited to this, and it only needs to be able to filter light.
  • the camera module 1000 may not include the filter module 200 . Meanwhile, in some embodiments, the camera module 1000 may not include the image sensor 300, but the functions of the image sensor 300 may be integrated on the sensor circuit board 400 in an integrated manner, which is not specifically limited herein.
  • the base 10 includes a first mounting portion 11 and a second mounting portion 12 , and the second mounting portion 12 is connected to the first mounting portion 11 and located at the first mounting portion 11 . part 11 on one side.
  • the first mounting portion 11 includes a first bottom surface 111 and a first top surface 113 , and the first mounting portion 11 is formed with a first mounting cavity 112 penetrating the first top surface 113 , that is, the first mounting portion 11 starts from the first mounting cavity 112 .
  • the top surface 113 is recessed downward to form a first installation cavity 112 , and the first installation cavity 112 is used for accommodating the first bearing portion 21 of the carrier 20 .
  • the second mounting portion 12 includes a second bottom surface 121 and a second top surface 123 , and the second mounting portion 12 is formed with a second mounting cavity 122 penetrating the second top surface 123 .
  • the top surface 123 is recessed downward to form a second installation cavity 122 , and the second installation cavity 122 is used for accommodating the second bearing portion 22 of the carrier 20 .
  • the top surfaces of the first mounting portion 11 and the second mounting portion 12 are flush, that is, the first top surface 113 and the second top surface 123 are flush, and the second mounting portion 12 is located on one side of the first mounting portion 11 and The bottom of the second mounting portion 12 protrudes from the bottom of the first mounting portion 11 , that is, the position of the first bottom surface 111 is lower than the position of the second bottom surface 121 .
  • the second mounting portion 12 further includes a side surface 124 connecting the first bottom surface 111 and the second bottom surface 121 , and the first bottom surface 111 and the side surface 124 enclose the accommodating groove 101 , that is to say , the inner surface of the accommodating groove 101 includes the first bottom surface 11 and the side surface 124 of the second mounting portion 12 .
  • the first bottom surface 111 is lower than the second bottom surface 121
  • the first bottom surface 111 and the second bottom surface 121 are stepped and connected by the side surfaces 124 , thereby forming the accommodating groove 101 with a substantially rectangular cross-section.
  • the bottom of the second mounting portion 12 protrudes from the first mounting portion 11 , and the first mounting portion 11 and the second mounting portion 12 have an “L”-shaped structure.
  • the accommodating slot 101 can be used to place other components of the camera module 1000 , for example, as shown in FIG. and other components other than the camera motor 100, in this way, other components of the camera module 1000 can be arranged in the accommodating slot 101, thereby effectively reducing the height of the camera module 1000, thereby enabling the application of the camera module 1000.
  • Mobile phones, etc. Mobile terminals or electronic devices can be made thinner and lighter.
  • the base 10 is integrally formed, that is to say, in this embodiment, both the first installation portion 11 and the second installation portion 12 are integrally formed, and the first installation The cavity 112 communicates with the second installation cavity 122 .
  • the base 10 can be made of a plastic material.
  • the first mounting portion 11 with the first mounting cavity 112 and the second mounting portion 12 with the second mounting cavity 122 can be directly formed by injection molding with a mold.
  • the base 10 may also be made of other materials, such as metal.
  • the base 10 can also be formed by machining, for example, a CNC machining factory, which is not specifically limited herein.
  • the second mounting portion 12 is located on one side of the first mounting portion 11 , and the accommodating groove 101 penetrates through the first mounting portion 11 on a different side from the second mounting portion 12 .
  • side wall 114 In this way, the accommodating groove 101 passing through the side wall 114 can make the accommodating groove 101 have a larger space, so that larger components can be placed.
  • the groove 101 penetrates through the side wall 114 so that the receiving groove 101 can have enough space to accommodate the image sensor 300 . It should be noted that, in the embodiment shown in FIG. 9 , the accommodating groove 101 penetrates through all the side walls of the first mounting portion 11 on the different sides from the second mounting portion 12 .
  • the accommodating groove 101 may also pass through any one or more of the first mounting portion 11 and the second mounting portion 12 different, for example, in one example, the accommodating groove 101 may only penetrate through the side wall of the first mounting portion 11 on the side away from the second mounting portion 12 , which is not specifically limited herein.
  • the carrier 20 includes a first carrier portion 21 and a second carrier portion 22 , the first carrier portion 21 is installed in the first installation cavity 112 , and the second carrier portion 22 is installed in the second installation cavity 122 Inside, the first carrying part 21 is used for mounting the lens 500 , and the second carrying part 22 is connected to the driving component 30 .
  • the second bearing portion 22 is located on one side of the first bearing portion 21 , the shape of the first bearing portion 21 matches the shape of the first mounting portion 11 , and the second bearing portion 22 is connected to the second bearing portion 21 .
  • the shapes of the mounting portions 12 are matched, that is to say, the first bearing portion 21 and the second bearing portion 22 can be mounted on the corresponding mounting portions.
  • the carrier 20 may also be an integrally formed structure, that is, both the first carrier portion 21 and the second carrier portion 22 may be integrally formed.
  • the carrier 20 can be made of a plastic material.
  • the first carrier 21 and the second carrier 22 can be directly formed by injection molding using a mold.
  • the carrier 20 can also be made of other materials. , such as metal, etc., the carrier 20 can also be formed by machining, such as CNC machining, which is not specifically limited herein.
  • the first bearing portion 21 is formed with a mounting hole 211 , and the mounting hole 211 is used for mounting the lens 500 .
  • the lens 500 can be stably mounted on the carrier 20 through the mounting hole 211 , so that the carrier 20 can drive the lens 500 to move along the optical axis X to realize automatic focusing.
  • the mounting hole 211 may be a threaded hole, the lens 500 is formed with threads, the two are threadedly connected, and the central axis of the mounting hole 211 coincides with the optical axis X of the lens 500 .
  • the first installation portion 11 is formed with a first through hole 115 penetrating the first bottom surface 111 , and the first through hole 115 communicates with the first installation cavity 112 and the accommodating groove 101 and is connected with the installation hole 211 concentric.
  • the filter module 200 and/or the image sensor 300 are arranged in the accommodating slot 101 , the light entering from the lens 500 can enter the filter module 200 through the first through hole 115 so that the image sensor 300 can receive the light for imaging.
  • the driving component 30 includes a coil 31 , a first magnetic member 32 and a circuit board 33 .
  • the circuit board 33 is mounted on the side wall 126 of the second mounting portion 12
  • the coil 31 is mounted on the circuit board 33
  • the first magnetic member 32 is fixedly mounted on the second bearing portion 22
  • the first magnetic member 32 and the coil 31 are arranged opposite to each other , the coil 31 is energized so that the first magnetic member 32 drives the carrier 20 to move along the optical axis X of the lens 500 , thereby driving the lens 500 to move to realize the automatic focusing of the camera module 1000 .
  • a second through hole 127 is formed on the side wall 126 of the second mounting portion 12 , and the coil 31 is mounted on the circuit board 33 and located in the second through hole 127 .
  • arranging the coil 31 in the second through hole 127 can effectively reduce the space occupied by the coil 31 in the radial direction of the camera motor 100 , so that the volume of the camera motor 100 can be made smaller.
  • the circuit board 33 is substantially in an “L” shape
  • the circuit board 33 includes a first portion 331 and a second portion 332 that are perpendicular to each other
  • the second mounting portion 12 includes a first portion 331 and a second portion 332 that are perpendicular to each other and intersect with each other.
  • the side wall 1261 and the second side wall 1262 , the first side wall 1261 , the second side wall 1262 and the second bottom surface 121 together define the second installation cavity 122 .
  • the first part 331 of the circuit board 33 is mounted on the first side wall 1261
  • the second part 332 is mounted on the second side wall 1262
  • the coil 31 is mounted on the first part 331 of the circuit board 33
  • the first side wall 1261 forms the first part 331.
  • Two through holes 127 are provided.
  • the positioning bosses 129 are formed on the first side wall 1261 and the second side wall 1262, and the first part 331 and the second part 332 of the circuit board 33 are formed on both.
  • the positioning holes 334 , the positioning bosses 129 and the positioning holes 334 cooperate to realize the positioning and installation of the circuit board 33 .
  • the arrangement and installation of the circuit board 33 can make the structure of the camera motor 100 more compact, so that the volume of the camera motor 100 is smaller.
  • the circuit board 33 may be fixed on the second mounting portion 12 by dispensing glue.
  • the camera motor 100 further includes a reinforcing plate 60 , the first portion 331 of the circuit board 33 is mounted on the reinforcing plate 60 , and the reinforcing plate 60 is mounted on the second mounting portion 12 .
  • the provision of the reinforcing plate 60 can effectively support the circuit board 33 to increase the strength of the circuit board 33 , thereby stably carrying and supporting the coil 31 and the detection member 51 .
  • the first side wall 1261 of the second installation portion 12 can be a metal embedded part, that is, in such an embodiment, the base 10 is not the first side wall 1261 except the first side wall 1261
  • Other components can be integrally formed with plastic materials, and the first side wall 1261 is embedded on the base 10.
  • FIG. 11 shows the base 10 without the first side wall 1261.
  • injection molding may be performed on the metal embedded part, so that the metal embedded part is formed as the first side wall 1261 of the second installation portion 12 , thereby forming the entire base 10 .
  • the first side wall 1261 is made of a metal material, and its anti-deformation strength is high, which can effectively improve the strength of the first side wall 1261 to stably support the circuit board 33 .
  • the second side wall 1262 can also be integrally formed with other parts of the base 10.
  • a mold can be used for direct injection molding, as long as the strength of the first side wall 1261 can be guaranteed. There is no restriction here.
  • a first installation groove 221 is formed on the second bearing portion 22 , and the first magnetic member 32 is disposed in the first installation groove 221 .
  • the first magnetic member 32 can be accommodated in the second bearing portion 22 , which can effectively reduce the space occupied by the first magnetic member 32 and make the camera motor 100 smaller in size.
  • the first magnetic member 32 can be a magnet, and the magnet moves under the action of the magnetic field generated by the coil 31 , so that the bearing member 20 Moving along the optical axis X of the lens 500 further drives the lens 500 to move along the optical axis X to realize the focusing of the camera module 1000 .
  • the camera motor 100 may further include a position detection part 50 , the position detection part 50 includes a detection part 51 and a detection part 52 , and the detection part 51 is arranged on the second installation part 12 ,
  • the sensing member 52 is disposed on the second bearing portion 22 , and the detection member 51 is used for sensing the position of the sensing member 52 , so as to detect the relative position of the bearing member 20 and the base 10 .
  • the position detection component 50 can detect the relative position of the carrier 20 and the base 10 so as to detect the moving distance of the carrier 20 to feedback the position of the carrier 20 , thereby realizing closed-loop control of the movement of the carrier 20 .
  • the sensing element 52 can be disposed on the circuit board 33 so that the sensing element 52 and the second mounting portion 12 are relatively fixed.
  • the sensing element 51 senses the position of the sensing element 52 in real time. position to detect the position of the carrier 20.
  • the carrier 20 moves and drives the lens 500 to move to a preset position, for example, to a position where the focus is successful
  • the sensor 52 senses the position of the carrier 20, and the sensor 52 detects the position of the carrier 20.
  • the signal is transmitted to the circuit board 33 and the main board of the electronic device 2000 having the camera module 1000 , so as to control the power off of the coil 31 to stop the movement of the driving carrier 20 .
  • the detection member 51 may include a Hall sensor
  • the sensing member 52 may include a second magnetic member.
  • the Hall sensor detects the relative position of the Hall sensor and the second magnetic member by sensing the strength of the magnetic field, thereby detecting The relative position of the carrier 20 and the base 10 .
  • the second magnetic member may be a magnet
  • the carrier 20 drives the second magnetic member to move, so that the distance between the second magnetic member and the Hall sensor occurs.
  • the magnetic field intensity detected by the Hall sensor will also change.
  • the Hall sensor can calculate the moving distance of the carrier 20 according to the change of the magnetic field intensity, thereby obtaining the relative position of the carrier 20 and the base 10 .
  • the detection member 51 can also be an infrared sensor.
  • the infrared sensor can emit and receive infrared light
  • the sensing member 52 can be a sensor disposed on the second bearing portion 22 .
  • a reflector that can reflect infrared light, and the two are set at an opposite interval.
  • the infrared light reflected by the infrared sensor can be reflected back under the reflection of the reflector.
  • the infrared sensor can calculate the sensor and reflection according to the time difference between emitting infrared light and receiving infrared light. The distance between the parts is obtained, and then the distance of the movement of the bearing member 20 relative to the base 10 is obtained, so as to achieve feedback on the position of the bearing member 20 to realize the closed-loop control of the movement of the bearing member 20 .
  • the infrared sensor may include a transmitter and a receiver, the transmitter may be arranged on the circuit board 33, and the receiver may be arranged on the carrier 20, so that the receiver may be The distance between the transmitter and the receiver is calculated according to the time from when the transmitter emits infrared light to when the receiver receives the infrared light, so as to detect the position of the carrier 20 .
  • a third through hole 128 is also formed on the side wall 126 of the second mounting portion 12 , the Hall sensor can be located in the third through hole 128 , and the second bearing portion 22 is formed with a third through hole 128 .
  • the second magnetic member is disposed in the second installation groove 222 .
  • arranging the Hall sensor in the third through hole 128 and arranging the second magnetic member in the second mounting groove 222 can effectively reduce the distance between the Hall sensor and the second magnetic member in the radial direction of the camera motor 100 . Occupying space, the volume of the camera motor 100 is smaller.
  • a metal embedded member 90 may be disposed in the second installation groove 222 of the second bearing portion 22 , and the metal embedded member 90 is embedded in the second bearing portion 22 .
  • the second magnetic The parts are arranged on the metal embedded parts 90 .
  • the metal embedded member 90 can increase the strength of the second bearing portion 22 to improve the reliability of the installation of the second magnetic member.
  • the housing 40 is covered on the base 10 , that is to say, in this embodiment, the carrier 20 is installed in the base 10 , and the housing 40 covers The base 10 is provided to protect the components in the base 10 .
  • the housing 40 is provided with a fourth through hole 41 concentric with the mounting hole 211 , and the lens 500 can be driven by the carrier 20 to protrude out of the housing 40 through the fourth through hole 41 .
  • the second side wall 1262 of the second mounting portion 12 is still provided with a blocking wall 130 , the blocking wall 130 is exposed outside the casing 40 , and the circuit board 33
  • the first part 331 of the circuit board 33 is located in the casing 40, and the pins 333 on the second part 332 of the circuit board 33 are supported on the retaining wall 130 and are exposed from the casing 40 so that the pins 333 can be connected with the camera module 1000 mounted thereon.
  • the main board of the electronic device 2000 is electrically connected. In this way, only the pins 333 of the circuit board 33 of the entire camera motor 100 are exposed from the casing 40 to be connected to the main board of the electronic device 2000 , and the structure of the camera module 1000 is relatively compact and beautiful.
  • the carrier 20 can move along the optical axis X of the lens 500 in the base 10 .
  • a ball track 131 is formed on the inner wall of the base 10 , and a ball track 131 is also formed on the corresponding part of the bearing member 20 , and a ball 70 is arranged between the two ball tracks 131 .
  • the ball 70 rolls in the ball track 131.
  • the base 10 and the bearing member 20 are connected by the balls 70 , and there is rolling friction between the balls 70 , the bearing member 20 and the base 10 , and the frictional force is small.
  • a groove 116 is formed in the first installation cavity 112 of the first installation part 11 , and a first impact boss is formed at the bottom of the first bearing part 21 212 , the first impact boss 212 corresponds to the groove 116 .
  • the carrier 20 moves to the limit position along the optical axis X of the lens 500 toward the bottom of the base 10 , the first impact boss 212 is matched with the groove 116 .
  • the positioning of the carrier 20 and the base 10 is convenient; on the other hand, the contact area between the carrier 20 and the base 10 is small when the first impact boss 212 is matched with the groove 116 , so that the The vibration generated by the collision between the two is small to prevent the vibration from being too large and the imaging quality of the camera module 1000 .
  • a bearing boss 213 is formed on the bottom of the first bearing portion 21 , and the first mounting portion 11 corresponds to the bearing boss 213
  • a bearing boss 117 is formed at the position of the bearing boss 117 , and the bearing boss 213 bears on the bearing boss 117 .
  • the bearing bosses 213 and the bearing bosses 117 may enable the base 10 to stably carry the member 20 .
  • a second impact boss 214 is further formed on the top of the first bearing portion 21 , and the second impact boss 214 protrudes from the top surface of the first bearing portion 21 .
  • the second impact boss 214 is the first to collide with the housing 40 , the contact area between the two is small, and the generated vibration is also small. Smaller, so as to achieve the purpose of preventing the image quality of the camera module 1000 from being too large due to vibration.
  • an escape groove 118 is formed downward on the first top surface 113 of the first mounting portion 11 of the base 10 , and a limiting boss 42 is formed on the housing 40 .
  • the limiting boss 42 is matched with the escape groove 118 . In this way, the setting of the limiting boss 42 and the escape groove 118 can position the housing 40 to improve the installation efficiency.
  • a dust ring 80 is installed on the hole wall of the first through hole 115 .
  • the dustproof ring 80 can seal the gap between the first bearing portion 21 and the first mounting portion 22 , thereby preventing dust or impurities inside the camera motor 100 from falling into the accommodating groove 101 through the first through hole 115 and contaminating it
  • the filter module 200 and/or the image sensor 300 affects the imaging quality.
  • the electronic device includes a camera module 1000 , the camera module 1000 includes a camera motor 100 , the camera motor 100 includes a base 10 , a carrier 20 and a driving part 30 , and an accommodation groove is formed in the bottom surface of the base 10 . 101 , the accommodating groove 101 penetrates one side of the base 10 .
  • the accommodating slot 101 is used for accommodating at least one of the filter module 200 , the image sensor 300 and the sensor circuit board 400 of the camera module 1000 .
  • the carrier 20 is used to carry the lens 500 .
  • the carrier 20 is disposed in the base 10 and can move along the optical axis X of the lens in the base 10 .
  • the driving part 30 is connected to the carrier 20 and used to drive the carrier 20 to move along the optical axis X of the lens 500 in the base 10 .
  • the bottom surface of the base 10 is recessed to form an accommodating groove 101 , and the accommodating groove 101 can be used to place the filter module 200 and the image sensor of the camera module 1000 At least one of the sensor circuit board 300 and the sensor circuit board 400 can effectively reduce the height of the camera module 1000 .
  • the accommodating groove 101 penetrates one side of the base 10 to communicate with the outside world. In this way, the accommodating space formed by the accommodating groove 101 is larger, and the filter module 200 and the image sensor 300 with a larger area can be placed to improve the camera model. Image quality of group 1000.

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Abstract

一种摄像头马达(100)、摄像头模组(1000)和电子装置(2000)。摄像头马达(100)包括底座(10)、承载件(20)和驱动部件(30)，底座(10)的底面凹陷形成有容置槽(101)，容置槽(101)贯通底座(10)的一侧。容置槽(101)用于容置摄像头模组(1000)的滤光模块(200)、图像传感器(300)和传感器电路板(400)中的至少一个。承载件(20)用于承载镜头(500)，承载件(20)设置在底座(10)内且能够在底座(10)内沿镜头(500)的光轴(X)运动。驱动部件(30)连接承载件(20)并用于驱动承载件(20)在底座(10)内沿镜头(500)的光轴(X)运动。

Description

摄像头马达、摄像头模组和电子装置
优先权信息
本申请请求2020年08月17日向中国国家知识产权局提交的、专利申请号为202010826997.1的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本申请涉及电子技术领域，具体涉及一种摄像头马达、摄像头模组和电子装置。
背景技术
手机等电子装置的拍照功能是通过摄像头模组自动对焦实现的，而摄像头马达是摄像头模组自动对焦不可或缺的核心部件。随着对电子产品轻薄化的要求不断提高，在手机等电子产品上，常规马达设计在高度方向尺寸存在瓶颈，无法满足手机等电子产品轻薄型化的设计要求。
发明内容
本申请实施方式提供了一种摄像头马达、摄像头模组和电子装置。
本申请实施方式的摄像头马达用于摄像头模组，所述摄像头马达包括：
底座，所述底座的底面凹陷形成有容置槽，所述容置槽贯通所述底座的一侧，所述容置槽用于容置所述摄像头模组的滤光模块、图像传感器和传感器电路板中的至少一个；
承载件，所述承载件用于承载镜头，所述承载件设置在所述底座内且能够在所述底座内沿所述镜头的光轴运动；和
驱动部件，所述驱动部件连接所述承载件并用于驱动所述承载件在所述底座内沿所述镜头的光轴运动。
本申请实施方式的摄像头模组包括：
上述实施方式的摄像头马达；和
滤光模块、图像传感器和传感器电路板中的至少一个，所述容置槽用于容置所述滤光模块、所述图像传感器和所述传感器电路板中的至少一个。
本申请实施方式的电子装置包括壳体和上述实施方式的摄像头模组，所述摄像头模组位于所述壳体内。
本申请的实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实施方式的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本申请实施方式的电子装置的结构示意图
图2是本申请实施方式的摄像头模组的立体结构示意图；
图3是本申请实施方式的摄像头模组的分解结构示意图；
图4是图2中的摄像头模组的主视图；
图5是本申请实施方式的摄像头马达的立体结构示意图；
图6是本申请实施方式的摄像头马达的分解结构示意图；
图7是图5中的摄像头马达的俯视图；
图8是图7中的摄像头马达沿线VIII-VIII的剖面示意图；
图9是图5中的摄像头马达的主视图；
图10是图5中的摄像头马达的后视图；
图11是本申请实施方式的摄像头马达的底座的结构示意图；
图12是图11中的摄像头马达的底座的仰视图；
图13是本申请实施方式的摄像头马达的承载件的结构示意图；
图14是图13中的摄像头马达的承载件的仰视图。
主要元件符号说明：
摄像头模组1000；
摄像头马达100、底座10、容置槽101、第一安装部11、第一底面111、第一安装腔112、第一顶面113、侧壁114、第一通孔115、凹槽116、承载凸台117、避让槽118、第二安装部12、第二底面121、第二安装腔122、第二顶面123、侧面124、侧壁126、第一侧壁1261、第二侧壁1262、第二通孔127、第三通孔128、定位凸起129、挡墙130、滚珠轨道131、承载件20、第一承载部21、安装孔211、第一撞击凸台212、承靠凸台213、第二撞击凸台214、第二承载部22、第一安装槽221、第二安装槽222、驱动部件30、线圈31、第一磁性件32、电路板33、第一部分331、第二部分332、引脚333、壳体40、第四通孔41、限位凸台42、位置检测部件50、检测件51、感测件52、增强板60、滚珠70、防尘环80、滤光模块200、图像传感器300、传感器电路板400、镜头500；
电子装置2000、壳体3000。
具体实施方式
以下结合附图对本申请的实施方式作进一步说明。附图中相同或类似的标号自始至终表示相同或类似的元件或具有相同或类似功能的元件。
另外，下面结合附图描述的本申请的实施方式是示例性的，仅用于解释本申请的实施方式，而不能理解为对本申请的限制。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。
本申请实施方式的摄像头马达包括底座、承载件和驱动部件，底座的底面凹陷形成有容置槽，容置槽贯通底座的一侧。容置槽用于容置摄像头模组的滤光模块、图像传感器和传感器电路板中的至少一个。承载件用于承载镜头，承载件设置在底座内且能够在底座内沿镜头的光轴运动。驱动部件连接承载件并用于驱动承载件在底座内沿镜头的光轴运动。
在某些实施方式中，所述底座包括第一安装部和第二安装部，所述第二安装部连接在所述第一安装部的一侧，所述第一安装部包括第一底面，所述第二安装部包括第二底面，所述第一底面的位置低于所述第二底面的位置，所述容置槽的内表面包括所述第二安装部的侧面以及所述第一底面。
在某些实施方式中，所述第一安装部包括第一顶面，所述第二安装部包括第二顶面，所述第一顶面和所述第二顶面平齐。
在某些实施方式中，所述承载件包括第一承载部和连接所述第一承载部的第二承载部，所述第一安装部形成有第一安装腔，所述第二安装部形成有第二安装腔，所述第一承载部安装在所述第一安装腔内，所述第二承载部安装在所述第二安装腔内，所述第一承载部用于承载所述镜头，所述第二承载部连接所述驱动部件。
在某些实施方式中，所述第一承载部形成有安装孔，所述安装孔用于安装所述镜头，所述安装孔的中心轴线与所述镜头的光轴重合。
在某些实施方式中，所述第一安装部形成有贯穿所述第一底面的第一通孔，所述第一通孔连通所述第一安装腔和所述容置槽且与所述安装孔同心。
在某些实施方式中，所述驱动部件包括线圈和第一磁性件，所述线圈安装在所述第二安装部，所述第一磁性件固定安装在所述第二承载部，所述第一磁性件和所述线圈相对设置，所述线圈通过通电以使所述第一磁性件带动所述承载件沿所述镜头的光轴运动。
在某些实施方式中，所述驱动部件还包括电路板，所述电路板安装在所述第二安装部的侧壁上，所述线圈安装在所述电路板上且与所述电路板电连接。
在某些实施方式中，所述第二安装部的侧壁形成有第二通孔，所述线圈位于所述第二通孔中。
在某些实施方式中，所述电路板包括相互垂直的第一部分和第二部分，所述第二安装部包括相互垂直且相交的第一侧壁和第二侧壁，所述第一侧壁、所述第二侧壁和所述第二底面共同围成所述 第二安装腔，所述第一部分安装在所述第一侧壁上，所述第二部分安装在所述第二侧壁上，所述线圈安装在所述第一部分上。
在某些实施方式中，在所述第一侧壁和所述第二侧壁上均形成有定位凸台，所述第一部分和所述第二部分上均形成有定位孔，所述定位凸台和所述定位孔配合。
在某些实施方式中，所述摄像头马达还包括增强板，所述第一部分安装所述增强板上，所述增强板安装在所述第二安装部上。
在某些实施方式中，所述第二承载部上形成有第一安装槽，所述第一磁性件设置在所述第一安装槽内。
在某些实施方式中，所述摄像头马达还包括位置检测部件，所述位置检测部件包括设置在所述第二安装部上的检测件和设置在所述第二承载部上的感测件，所述检测件用于感测所述感测件的位置，从而检测所述承载件与所述底座的相对位置。
在某些实施方式中，所述检测件包括霍尔传感器，所述感测件包括第二磁性件，所述霍尔传感器通过感测磁场强度以检测所述霍尔传感器与所述第二磁性件的相对位置，从而检测所述承载件与所述底座的相对位置。
在某些实施方式中，所述第二安装部的侧壁上还形成有第三通孔，所述霍尔传感器位于所述第三通孔内，所述第二承载部上形成有第二安装槽，所述第二磁性件设置在所述第二安装槽内。
在某些实施方式中，所述检测件包括红外传感器，所述感测件包括设置在所述第二承载部上的能够反射红外光的反射件。
本申请实施方式的摄像头模组包括本申请实施方式的摄像头马达和滤光模块、图像传感器和传感器电路板中的至少一个，所述滤光模块、所述图像传感器和所述传感器电路板中的至少一个容置于所述容置槽内。
本申请实施方式的电子装置包括壳本体和本申请实施方式的摄像头模组，所述摄像头模组位于所述壳本体内。
请参阅图1，本申请实施方式的电子装置2000包括本申请实施方式的摄像头模组1000和壳体3000。摄像头模组1000设置在壳体3000内，摄像头模组1000用于接收外界光线进行成像以使电子装置2000具备拍摄功能。
请参阅图2至图4，本申请实施方式的摄像头模组1000包括摄像头马达100、滤光模块200、图像传感器300、传感器电路板400和镜头500。镜头500、滤光模块200和图像传感器300均设置在摄像头马达100上，摄像头马达100用于驱动镜头500沿镜头500的光轴X运动以实现摄像头模组1000的自动对焦，滤光模块200和图像传感器300位于镜头500的光路上，图像传感器300位于滤光模块200下方，图像传感器300设置在传感器电路板400上，从镜头500进入的光线经过滤光模块200进行过滤后可被图像传感器300接收从而实现成像。
可以理解的是，本申请实施方式的电子装置2000包括但不限于手机、平板等具有拍照和/或摄像功能的移动终端或者其它便携式电子设备，在本文中，摄像头模组1000可为电子装置200中的自动对焦摄像头。可以理解的是，在一个电子装置2000中，可只具备一个摄像头模组1000或者同时具备多个摄像头模组1000，具体在此不作限制。
请参阅图5至图8，本申请实施方式的摄像头马达100包括底座10、承载件20、驱动部件30和壳体40。承载件20安装在底座10内，驱动部件30连接承载件20，壳体40罩设在底座10上。承载件20用于承载镜头500，驱动部件30用于驱动承载件20运动从而带动镜头500沿镜头500的光轴X运动。
请参阅图5，在本申请的实施方式中，底座10的底面凹陷形成有容置槽101，容置槽101贯通底座10的一侧。请结合图3和图4，容置槽101可用于滤光模块200、图像传感器300和传感器电路板400中的至少一个。在图示的实施方式，滤光模块200和图像传感器300均容置在容置槽101内，传感器电路板300位于容置槽101外。可以理解的是，在其它实施方式中，容置槽101也可以只容置滤光模块200或者图像传感器300或者传感器电路板400，或者只容置滤光模块200和图像传感器300，或者只容置图像传感器300和传感器电路板400，具体在此不作限制。此外，请参阅图3，在本实施方式中，滤光模块200可包括支架201和滤光片202，滤光片202设置在支架201上，支架201容置在容置槽101内，图像传感器300位于支架201下方。当然，在其它实施方式中， 滤光模块200的具体结构可不限于此，只需要能够实现对光线的过滤即可。
此外，可以理解的是，在一些实施方式中，摄像头模组1000也可不包含滤光模块200。同时，在一些实施方式中，摄像头模组1000也可不包含图像传感器300而是通过集成结合的方式将图像传感器300的功能集成设置在传感器电路板400上，具体在此不作限制。
请结合图6以及图8至图10，在本申请的实施方式中，底座10包括第一安装部11和第二安装部12，第二安装部12连接第一安装部11且位于第一安装部11的一侧。第一安装部11包括第一底面111和第一顶面113，第一安装部11形成有贯穿第一顶面113的第一安装腔112，也即是说，第一安装部11自第一顶面113向下凹陷形成有第一安装腔112，第一安装腔112用于容纳承载件20的第一承载部21。
第二安装部12包括第二底面121和第二顶面123，第二安装部12形成有贯穿第二顶面123的第二安装腔122，也即是说，第二安装部12自第二顶面123向下凹陷形成有第二安装腔122，第二安装腔122用于容纳承载件20的第二承载部22。
第一安装部11和第二安装部12两者的顶面平齐，也即第一顶面113和第二顶面123平齐，第二安装部12位于第一安装部11的一侧且第二安装部12的底部凸出于第一安装部11的底部，即第一底面111的位置低于第二底面121的位置。
请参阅图8，在本实施方式中，第二安装部12还包括连接第一底面111和第二底面121的侧面124，第一底面111和侧面124围成容置槽101，也即是说，容置槽101的内表面包括第一底面11和第二安装部12的侧面124。这样，由于第一底面111低于第二底面121的位置，第一底面111和第二底面121两者呈阶梯状且通过侧面124连接，从而形成有截面大致呈矩形状的容置槽101。
具体地，在图示的实施方式中，第二安装部12的底部凸出于第一安装部11，第一安装部11和第二安装部12呈“L”型结构。这样，容置槽101可以用于放置摄像头模组1000的其它元件，例如，如图4所示，容置槽101可用于放置摄像头模组1000的滤光模块200和图像传感器300等除镜头500和摄像头马达100以外的其它元器件，这样，摄像头模组1000的其它元件可设置在容置槽101内，从而有效的降低摄像头模组1000的高度，进而使得应用有摄像头模组1000的手机等移动终端或者电子设备能够更加轻薄化。
可以理解的是，在本申请的实施方式中，底座10为一体成型结构，也即是说，在本实施方式中，第一安装部11和第二安装部12两者一体成型，第一安装腔112连通第二安装腔122。具体地，底座10可采用塑料材料制成，例如，采用模具进行注塑成型直接形成具有第一安装腔112的第一安装部11和具有第二安装腔122的第二安装部12，当然，可以理解的是，在一些实施方式中，底座10也可采用其它的材料制成，例如金属等。同时，底座10也可以通过机械加工，例如CNC加工厂成型，具体在此不作限制。
请参阅图8和图9，在本申请的实施方式中，第二安装部12位于第一安装部11的一侧，容置槽101贯通第一安装部11的与第二安装部12不同侧的侧壁114。这样，容置槽101贯通侧壁114可以使得容置槽101的空间更大，从而能够放置较大的元器件，例如，在需要放置面积更大的图像传感器300以提高成像质量时，容置槽101贯穿侧壁114可以使得容置槽101能够有足够的空间放置图像传感器300。需要说明的是，在图9所示的实施方式中，容置槽101贯通第一安装部11的所有与第二安装部12不同侧的所有侧壁。可以理解的是的是，在其它实施方式中，容置槽101也可是贯通第一安装部11与第二安装部12不同中的任意一个或者多个，例如，在一个例子中，容置槽101可只贯通第一安装部11的背离第二安装部12一侧的侧壁，具体在此不作限制。
请参阅图6和图8，承载件20包括第一承载部21和第二承载部22，第一承载部21安装在第一安装腔112内，第二承载部22安装在第二安装腔122内，第一承载部21用于安装镜头500，第二承载部22连接驱动部件30。
具体地，在本实施方式中，第二承载部22位于第一承载部21的一侧，第一承载部21的形状与第一安装部11的形状相匹配，第二承载部22与第二安装部12的形状相匹配，也即是说，第一承载部21和第二承载部22可以安装在与之对应的安装部上。
可以理解的是，在本申请的实施方式中，承载件20也可为一体成型结构，也即是说，第一承载部21和第二承载部22两者可一体成型。承载件20可采用塑料材料制成，例如，采用模具进行注塑成型直接形成第一承载部21和第二承载部22，当然，在一些实施方式中，承载件20也可采用 其它的材料制成，例如金属等，承载件20也可以通过机械加工，例如CNC加工厂成型，具体在此不作限制。
在本实施方式中，第一承载部21形成有安装孔211，安装孔211用于安装镜头500。
这样，镜头500可通过安装孔211稳定地安装在承载件20上，以使得承载件20能够带动镜头500沿光轴X运动以实现自动对焦。具体地，在本申请的实施方式中，安装孔211可为螺纹孔，镜头500上形成有螺纹，两者螺纹连接，安装孔211的中心轴线与镜头500的光轴X重合。
进一步地，在这样的实施方式中，第一安装部11形成有贯穿第一底面111的第一通孔115，第一通孔115连通第一安装腔112和容置槽101且与安装孔211同心。
这样，在将滤光模块200和/或图像传感器300设置在容置槽101内时，从镜头500进入的光线可通过第一通孔115进入滤光模块200进而使得图像传感器300能够接收到光线以进行成像。
请继续参阅图6和图8，在本申请的实施方式中，驱动部件30包括线圈31、第一磁性件32和电路板33。电路板33安装在第二安装部12的侧壁126上，线圈31安装在电路板33上，第一磁性件32固定安装在第二承载部22上，第一磁性件32和线圈31相对设置，线圈31通过通电以使第一磁性件32带动承载件20沿镜头500的光轴X运动，从而带动镜头500运动以实现摄像头模组1000的自动对焦。
请参阅图6，在图示的实施方式中，第二安装部12的侧壁126形成有第二通孔127，线圈31安装在电路板33上且位于第二通孔127内。这样，将线圈31设置在第二通孔127内可以有效的减少线圈31在摄像头马达100的径向方向上的占有空间，使得摄像头马达100的体积可以做的更小。
具体地，在图示的实施方式中，电路板33基本呈“L”型，电路板33包括相互垂直的第一部分331和第二部分332，第二安装部12包括相互垂直且相交的第一侧壁1261和第二侧壁1262，第一侧壁1261、第二侧壁1262和第二底面121共同围成第二安装腔122。电路板33的第一部分331安装在第一侧壁1261上，第二部分332安装在第二侧壁1262上，线圈31安装在电路板33的第一部分331上，第一侧壁1261上形成第二通孔127。
此外，为了实现对电路板33的定位和固定，在第一侧壁1261和第二侧壁1262上均形成有定位凸台129，电路板33的第一部分331和第二部分332上均形成有定位孔334，定位凸台129和定位孔334配合以实现对电路板33的定位和安装。如此，电路板33的设置和安装方式可以使得摄像头马达100的结构较为紧凑，使得摄像头马达100的体积更小。可以理解的是，在本申请的实施方式中，电路板33可通过点胶的方式固定在第二安装部12上。
请参阅图6，在一些实施方式中，摄像头马达100还包括增强板60，电路板33的第一部分331安装增强板60上，增强板60安装在第二安装部12上。
如此，增强板60的设置可以对的电路板33进行有效的支撑以增加电路板33的强度，从而对线圈31和检测件51进行稳定的承载和支撑。
可以理解的是，在一些实施方式中，第二安装部12的第一侧壁1261可为金属埋设件，也即是说，在这样的实施方式中，底座10除第一侧壁1261以外的其它部件可采用塑料材料一体成型，第一侧壁1261通过嵌入在底座10上，例如，如图11所示，图11中示出的是不带有第一侧壁1261的底座10，在这样的实施方式中，可在金属埋设件上进行注塑，从而使得金属埋设件形成为第二安装部12的第一侧壁1261，从而形成整个底座10。这样，第一侧壁1261为金属材质，其抗变形强度较高，可以有效提高第一侧壁1261的强度以稳定地对电路板33进行支撑。当然，在一些实施方式中，第二侧壁1262也可与底座10的其它部分一体成型，例如，可采用模具进行注塑直接一体成型，只需要能够保证第一侧壁1261的强度即可，具体在此不作限制。
进一步地，请参阅图6，在本实施方式中，第二承载部22上形成有第一安装槽221，第一磁性件32设置在第一安装槽221内。这样，第一磁性件32可容置在第二承载部22内，可以有效的减少第一磁性件32的占有空间，使得摄像头马达100的体积更小。可以理解的是，在本申请的实施方式中，在线圈31通电后，线圈31产生磁场，第一磁性件32可为磁铁，磁铁在线圈31产生的磁场的作用下运动，从而使得承载件20沿镜头500的光轴X运动进而带动镜头500沿光轴X运动以实现摄像头模组1000的对焦。
请参阅图7，在本申请的实施方式中，摄像头马达100还可包括位置检测部件50，位置检测部件50包括检测件51和感测件52，检测件51设置在第二安装部12上，感测件52设置在第二承载 部22上，检测件51用于感测感测件52的位置，从而检测承载件20与底座10的相对位置。
如此，位置检测部件50可以检测承载件20与底座10的相对位置从而实现对承载件20的移动距离的检测以对承载件20的位置进行反馈，进而实现对承载件20运动的的闭环控制。
具体地，感测件52可设置在电路板33上从而使得感测件52与第二安装部12相对固定，在摄像头模组1000对焦的过程中，检测件51实时感测感测件52的位置从而检测承载件20的位置，在承载件20移动带动镜头500移动至预设位置时，例如移动至对焦成功的位置，感测件52感测承载件20的位置，感测件52将检测信号传递给电路板33以及具有摄像头模组1000的电子装置2000的主板，从而控制线圈31的断电以停止驱动承载件20运动。
在一些实施方式中，检测件51可包括霍尔传感器，感测件52可包括第二磁性件，霍尔传感器通过感测磁场强度以检测霍尔传感器与第二磁性件的相对位置，从而检测承载件20与底座10的相对位置。
具体地，在这样的实施方式中，第二磁性件可为磁铁，在承载件20运动时，承载件20带动第二磁性件运动，从而使得第二磁性件与霍尔传感器之间的距离发生变化，此时，霍尔传感器检测到的磁场强度也会发生变化，霍尔传感器可根据磁场的强度变化来计算承载件20的移动距离，从而得到承载件20与底座10的相对位置。
可以理解的是，在一些实施方式，检测件51也可为红外传感器，在这样的实施方式中，红外传感器可发射和接收红外光，感测件52可为设置在第二承载部22上的能够反射红外光的反射件，两者间隔相对设置，红外传感器反射的红外光能够在反射件的反射作用下反射回来，红外传感器可根据发射红外光和接收红外光之间的时间差计算传感器和反射件之间的距离，进而得到承载件20相对底座10运动的距离，从而达到对承载件20的位置进行反馈，以实现对承载件20运动的闭环控制。
当然，还可以理解的是，在一些实施方式中，红外传感器可包括发射器和接收器，可将发射器设置在电路板33上，将接收器设置在承载件20上，这样，接收器可根据发射器发射红外光至接收器接收红外光之间的时间计算发射器与接收器之间的距离，从而检测承载件20的位置。
请参阅图6，在本实施方式中，第二安装部12的侧壁126上还形成有第三通孔128，霍尔传感器可位于第三通孔128内，第二承载部22上形成有第二安装槽222，第二磁性件设置在第二安装槽222内。
如此，将霍尔传感器设置在第三通孔128内，将第二磁性件设置在第二安装槽222内可以有效的减少霍尔传感器和第二磁性件在摄像头马达100的径向方向上的占有空间，使得摄像头马达100的体积更小。
另外，请参阅图6，在一些实施方式中，第二承载部22的第二安装槽222内可设置有金属埋设件90，该金属埋设件90埋设在第二承载部22内，第二磁性件设置在金属埋设件90上。
如此，该金属埋设件90可以增加第二承载部22的强度以提高第二磁性件安装的可靠性。
请参阅图5和图6，在本申请的实施方式中，壳体40罩设在底座10上，也即是说，在本实施方式中，承载件20安装在底座10内，壳体40罩设底座10以对底座10内的元件进行保护。壳体40上开设有安装孔211同心的第四通孔41，镜头500可被承载件20带动从而通过该第四通孔41伸出至壳体40外。
请参阅图6以及图10至图12，在一些实施方式中，在第二安装部12的第二侧壁1262上还是设置有挡墙130，挡墙130露出与壳体40外，电路板33的第一部分331位于壳体40内，电路板33的第二部分332上的引脚333承靠在挡墙130上并从壳体40内露出以使引脚333能够与安装有摄像头模组1000的电子装置2000的主板电连接。这样，整个摄像头马达100只有电路板33的引脚333从壳体40内露出以与电子装置2000的主板连接，摄像头模组1000的结构较为紧凑和美观。
请参阅图6、图11和图14，在本申请的实施方式中，承载件20能够在底座10内沿镜头500的光轴X运动。底座10的内壁上形成有滚珠轨道131，承载件20的相应部位也形成有滚珠轨道131，在两个滚珠轨道131之间设置有滚珠70，在承载件20相对所述底座10滚动时，滚珠70在滚珠轨道131内滚动。这样，底座10和承载件20之间通过滚珠70连接，滚珠70与承载件20以及底座10之间均为滚动摩擦，摩擦力较小。
请参阅图11、图13以及图14，在某些实施方式中，第一安装部11的第一安装腔112内形成 有凹槽116，第一承载部21的底部形成有第一撞击凸台212，第一撞击凸台212与凹槽116相对应。在承载件20沿镜头500的光轴X向底座10的底部运动至极限位置时，第一撞击凸台212与凹槽116配合。
如此，一方面，方便对承载件20和底座10进行定位，另一方面，采用第一撞击凸台212与凹槽116配合的方式，承载件20与底座10撞击时的接触面积较小，从而使得两者碰撞是产生的振动较小以防止振动过大而摄像头模组1000的成像质量。
此外，请再次参阅图11、图13以及图14，在某些实施方式中，第一承载部21的底部还形成有承靠凸台213，第一安装部11上与承靠凸台213对应的位置形成有承载凸台117，承靠凸台213承靠在承载凸台117上。
如此，承靠凸台213和承载凸台117的可以使得底座10能够稳定地承载件20。
请参阅图图10，在一些实施方式中，第一承载部21的顶部还形成有第二撞击凸台214，第二撞击凸台214凸出与第一承载部21的顶面。
如此，在承载件20沿镜头500的光轴X向底座10的底部运动至极限位置时，第二撞击凸台214率先与壳体40发生碰撞，两者的接触面积较小，产生的振动也较小，从而达到防止振动过大而摄像头模组1000的成像质量的目的。
请参阅图6和图11，在某些实施方式中，底座10的第一安装部11的第一顶面113向下形成有避让槽118，壳体40上形成有限位凸台42，壳体40安装在底座10上时，限位凸台42与避让槽118相配合。如此，限位凸台42和避让槽118的设置可以对壳体40进行定位以提高安装效率。
再有，请参阅图11，在一些实施方式中，第一通孔115的孔壁出安装有防尘环80。
如此，防尘环80可以密封第一承载部21和第一安装部22之间的间隙，从而防止摄像头马达100内部的灰尘或者杂质通过第一通孔115落入至容置槽101内而污染滤光模块200和/或图像传感器300而影响成像质量。
综上，本申请实施方式的电子装置包括摄像头模组1000，摄像头模组1000包括摄像头马达100，摄像头马达100包括底座10、承载件20和驱动部件30，底座10的底面凹陷形成有容置槽101，容置槽101贯通底座10的一侧。容置槽101用于容置摄像头模组1000的滤光模块200、图像传感器300和传感器电路板400中的至少一个。承载件20用于承载镜头500，承载件20设置在底座10内且能够在底座10内沿镜头的光轴X运动。驱动部件30连接承载件20并用于驱动承载件20在底座10内沿镜头500的光轴X运动。
本申请实施方式的摄像头马达100、摄像头模组1000和电子装置2000中，底座10的底面凹陷形成有容置槽101，容置槽101可用于放置摄像头模组1000的滤光模块200、图像传感器300和传感器电路板400中的至少一个，从而有效的降低摄像头模组1000的高度。此外，容置槽101贯通底座10的一侧从而与外界连通，这样，容置槽101所形成的容置空间较大，可以放置面积较大的滤光模块200和图像传感器300以提高摄像头模组1000的成像质量。
在本说明书的描述中，参考术语“某些实施方式”、“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”、或“一些示例”的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
尽管上面已经示出和描述了本申请的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本申请的限制，本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (20)

  1. 一种摄像头马达，用于摄像头模组，其特征在于，所述摄像头马达包括：
    底座，所述底座的底面凹陷形成有容置槽，所述容置槽贯通所述底座的一侧，所述容置槽用于容置所述摄像头模组的滤光模块、图像传感器和传感器电路板中的至少一个；
    承载件，所述承载件用于承载镜头，所述承载件设置在所述底座内且能够在所述底座内沿所述镜头的光轴运动；和
    驱动部件，所述驱动部件连接所述承载件并用于驱动所述承载件在所述底座内沿所述镜头的光轴运动。
  2. 根据权利要求1所述的摄像头马达，其特征在于，所述底座包括第一安装部和第二安装部，所述第二安装部连接在所述第一安装部的一侧，所述第一安装部包括第一底面，所述第二安装部包括第二底面，所述第一底面的位置低于所述第二底面的位置，所述容置槽的内表面包括所述第二安装部的侧面以及所述第一底面。
  3. 根据权利要求2所述的摄像头马达，其特征在于，所述第一安装部包括第一顶面，所述第二安装部包括第二顶面，所述第一顶面和所述第二顶面平齐。
  4. 根据权利要求2所述的摄像头马达，其特征在于，所述承载件包括第一承载部和连接所述第一承载部的第二承载部，所述第一安装部形成有第一安装腔，所述第二安装部形成有第二安装腔，所述第一承载部安装在所述第一安装腔内，所述第二承载部安装在所述第二安装腔内，所述第一承载部用于承载所述镜头，所述第二承载部连接所述驱动部件。
  5. 根据权利要求4所述的摄像头马达，其特征在于，所述第一承载部形成有安装孔，所述安装孔用于安装所述镜头，所述安装孔的中心轴线与所述镜头的光轴重合。
  6. 根据权利要求5所述的摄像头马达，其特征在于，所述第一安装部形成有贯穿所述第一底面的第一通孔，所述第一通孔连通所述第一安装腔和所述容置槽且与所述安装孔同心。
  7. 根据权利要求4所述的摄像头马达，其特征在于，所述驱动部件包括线圈和第一磁性件，所述线圈安装在所述第二安装部，所述第一磁性件固定安装在所述第二承载部，所述第一磁性件和所述线圈相对设置，所述线圈通过通电以使所述第一磁性件带动所述承载件沿所述镜头的光轴运动。
  8. 根据权利要求7所述的摄像头马达，其特征在于，所述驱动部件还包括电路板，所述电路板安装在所述第二安装部的侧壁上，所述线圈安装在所述电路板上且与所述电路板电连接。
  9. 根据权利要求8所述的摄像头马达，其特征在于，所述第二安装部的侧壁形成有第二通孔，所述线圈位于所述第二通孔中。
  10. 根据权利要求8所述的摄像头马达，其特征在于，所述电路板包括相互垂直的第一部分和第二部分，所述第二安装部包括相互垂直且相交的第一侧壁和第二侧壁，所述第一侧壁、所述第二侧壁和所述第二底面共同围成所述第二安装腔，所述第一部分安装在所述第一侧壁上，所述第二部分安装在所述第二侧壁上，所述线圈安装在所述第一部分上。
  11. 根据权利要求10所述的摄像头马达，其特征在于，在所述第一侧壁和所述第二侧壁上均形成有定位凸台，所述第一部分和所述第二部分上均形成有定位孔，所述定位凸台和所述定位孔配合。
  12. 根据权利要求10所述的摄像头马达，其特征在于，所述摄像头马达还包括增强板，所述第 一部分安装所述增强板上，所述增强板安装在所述第二安装部上。
  13. 根据权利要求7所述的摄像头马达，其特征在于，所述第二承载部上形成有第一安装槽，所述第一磁性件设置在所述第一安装槽内。
  14. 根据权利要求4所述的摄像头马达，其特征在于，所述摄像头马达还包括位置检测部件，所述位置检测部件包括设置在所述第二安装部上的检测件和设置在所述第二承载部上的感测件，所述检测件用于感测所述感测件的位置，从而检测所述承载件与所述底座的相对位置。
  15. 根据权利要求14所述的摄像头马达，其特征在于，所述检测件包括霍尔传感器，所述感测件包括第二磁性件，所述霍尔传感器通过感测磁场强度以检测所述霍尔传感器与所述第二磁性件的相对位置，从而检测所述承载件与所述底座的相对位置。
  16. 根据权利要求15所述的摄像头马达，其特征在于，所述第二安装部的侧壁上还形成有第三通孔，所述霍尔传感器位于所述第三通孔内，所述第二承载部上形成有第二安装槽，所述第二磁性件设置在所述第二安装槽内。
  17. 根据权利要求14所述的摄像头马达，其特征在于，所述检测件包括红外传感器，所述感测件包括设置在所述第二承载部上的能够反射红外光的反射件。
  18. 一种摄像头模组，其特征在于，所述摄像头模组包括：
    权利要求1-17任一项所述的摄像头马达；和
    滤光模块、图像传感器和传感器电路板中的至少一个，所述滤光模块、所述图像传感器和所述传感器电路板中的至少一个容置于所述容置槽内。
  19. 根据权利要求18所述的摄像头模组，其特征在于，所述滤光模块包括支架和滤光片，所述滤光片设置在所述支架上，所述支架设置在所述容置槽内，所述图像传感器位于所述支架下方。
  20. 一种电子装置，其特征在于，包括：
    壳本体；和
    权利要求18-19任一项所述的摄像头模组，所述摄像头模组位于所述壳本体内。
PCT/CN2021/105814 2020-08-17 2021-07-12 摄像头马达、摄像头模组和电子装置 WO2022037316A1 (zh)

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