Patent Publication Number: US-2023141509-A1

Title: Camera Motor, Camera Module and Electronic Device

Description:
CROSS-REFERENCE TO RELATED APPLICATION(S) 
     The present disclosure is a continuation-application of International (PCT) Patent Application No. PCT/CN2021/105814, filed on Jul. 12, 2021, which claims priority of Chinese Patent Application No. 202010826997.1, filed on Aug. 17, 2020, the entire contents of both of which are hereby incorporated by reference. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to the field of electronic technologies, and in particular to a camera motor, a camera module, and an electronic device. 
     BACKGROUND 
     The photo function of mobile phones and other electronic devices is realized by automatic focus of camera modules, and the camera motor is an indispensable core component of the camera module for automatic focus. With the increasing demand for thin and light electronic products, in mobile phones and other electronic products, the conventional motor design has technical limitations in the size of a height direction, which cannot meet the design requirements of thin and light mobile phones and other electronic products. 
     SUMMARY 
     The present disclosure provides a camera motor, a camera module, and an electronic device. 
     The camera motor of the present disclosure is applied to a camera module and includes: 
     a base; wherein a bottom surface of the base is recessed to define a receiving slot, and the receiving slot passes through a side of the base; the receiving slot is configured to receive at least one of a light filter module, an image sensor, and a sensor circuit board of the camera module; 
     a carrying member, configured to carry a lens, arranged in the base, and movable along an optical axis of the lens within the base; and 
     a drive member, connected to the carrying member and configured to drive the carrying member to move along the optical axis of the lens. 
     The camera module of the present disclosure includes the camera motor as above, and 
     at least one of the light filter module, the image sensor, and the sensor circuit board, arranged in the receiving slot. 
     The electronic device of the present disclosure includes a shell and the camera module as above arranged in the shell. 
     Additional aspects and advantages of the embodiments of the present disclosure will be given in part in the following description, and will become apparent in part from the following description, or from the practice of the embodiments of the present disclosure. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
       The foregoing and/or additional aspects and advantages of the present disclosure will become apparent and easily understood from the description of the embodiments in conjunction with the accompanying drawings. 
         FIG.  1    is a structural schematic view of an electronic device according to an embodiment of the present disclosure. 
         FIG.  2    is a perspective structural schematic view of a camera module according to an embodiment of the present disclosure. 
         FIG.  3    is an exploded structural schematic view of a camera module according to an embodiment of the present disclosure. 
         FIG.  4    is a front view of the camera module in  FIG.  2   . 
         FIG.  5    is a perspective structural schematic view of a camera motor according to an embodiment of the present disclosure. 
         FIG.  6    is an exploded structural schematic view of a camera motor according to an embodiment of the present disclosure. 
         FIG.  7    is a top view of the camera motor in  FIG.  5   . 
         FIG.  8    is a cross-sectional schematic view of the camera motor along VIII-VIII in  FIG.  7   . 
         FIG.  9    is a front view of the camera motor in  FIG.  5   . 
         FIG.  10    is a rear view of the camera motor in  FIG.  5   . 
         FIG.  11    is a structural schematic view of a base of a camera motor according to an embodiment of the present disclosure. 
         FIG.  12    is a bottom view of the base of the camera motor in  FIG.  11   . 
         FIG.  13    is a structural schematic view of a carrying member of a camera motor according to an embodiment of the present disclosure. 
         FIG.  14    is a bottom view of the carrying member of the camera motor in  FIG.  13   . 
     
    
    
     REFERENCE NUMERALS DESCRIPTION 
     
         
         
           
             Camera module  1000 . 
             Camera motor  100 , base  10 , receiving slot  101 , first mounting portion  11 , first bottom surface  111 , first mounting cavity  112 , first top surface  113 , side wall  114 , first through hole  115 , recess  116 , carrying tab  117 , avoidance slot  118 , second mounting portion  12 , second bottom surface  121 , second mounting cavity  122 , second top surface  123 , side surface  124 , side wall  126 , first side wall  1261 , second side wall  1262 , second through hole  127 , third through hole  128 , positioning tab  129 , retaining wall  130 , ball track  131 , carrying member  20 , first carrying portion  21 , mounting hole  211 , first impact tab  212 , support tab  213 , second impact tab  214 , second carrying portion  22 , first mounting slot  221 , second mounting slot  222 , drive member  30 , coil  31 , first magnetic member  32 , circuit board  33 , first portion  331 , second portion  332 , pin  333 , housing  40 , fourth through hole  41 , limit tab  42 , position detection part  50 , detection member  51 , sensing member  52 , enhancement plate  60 , ball  70 , dustproof ring  80 , light filter module  200 , image sensor  300 , sensor circuit board  400 , lens  500 . 
             Electronic device  2000 , shell  3000 . 
           
         
       
    
     DETAILED DESCRIPTION 
     Embodiments of the present disclosure are further described below in connection with the accompanying drawings. The same or similar reference numerals in the accompanying drawings indicate the same or similar components or components having the same or similar functions thorough the present disclosure. 
     Further, the embodiments of the present disclosure described below in conjunction with the accompanying drawings are exemplary, intended only to explain the embodiments of the present disclosure, and not to be construed as limiting the present disclosure. 
     The following disclosure provides a number of different embodiments or examples for implementing the different structures of the present disclosure. To simplify the description of the present disclosure, the components and settings of particular examples are described below. They are, of course, examples only and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and/or reference letters in different examples; such repetition is for the purpose of simplicity and clarity and is not in itself indicative of a relationship between the various embodiments and/or settings discussed. 
     The camera motor of the present disclosure includes a base, a carrying member, and a drive member; wherein a bottom surface of the base is recessed to define a receiving slot, and the receiving slot passes through a side of the base; the receiving slot is configured to receive at least one of a light filter module, an image sensor, and a sensor circuit board of the camera module; the carrying member is configured to carry a lens, arranged in the base, and movable along an optical axis of the lens within the base; the drive member is connected to the carrying member and configured to drive the carrying member to move along the optical axis of the lens. 
     In some embodiments, the base includes a first mounting portion and a second mounting portion, and the second mounting portion is connected to a side of the first mounting portion; the first mounting portion includes a first bottom surface, and the second mounting portion includes a second bottom surface; a position of the first bottom surface is lower than a position of the second bottom surface; an inner surface of the receiving slot includes the first bottom surface and a side surface of the second mounting portion. 
     In some embodiments, the first mounting portion further includes a first top surface, and the second mounting portion further includes a second top surface; the first top surface and the second top surface are flush. 
     In some embodiments, the carrying member includes a first carrying portion and a second carrying portion connected to the first carrying portion; the first mounting portion defines a first mounting cavity, and the second mounting portion defines a second mounting cavity; the first carrying portion is arranged in the first mounting cavity, and the second carrying portion is arranged in the second mounting cavity; the first carrying portion is configured to arrange the lens, and the second carrying portion is connected to the drive member. 
     In some embodiments, the first carrying portion defines a mounting hole configured to arrange the lens, and a center axis of the mounting hole coincides with the optical axis of the lens. 
     In some embodiments, the first mounting portion defines a first through hole passing through the first bottom surface, and the first through hole is communicated with the first mounting cavity and the receiving slot and is concentric with the mounting hole. 
     In some embodiments, the drive member includes a coil and a first magnetic member; the coil is arranged on the second mounting portion, and the first magnetic member is fixedly arranged on the second carrying portion; the first magnetic member and the coil are arranged opposite each other, and the coil is capable of causing the first magnetic member to drive the carrying member to move along the optical axis of the lens in response to the coil being energized. 
     In some embodiments, the drive member further includes a circuit board arranged on a side wall of the second mounting portion; the coil is arranged on the circuit board and is electrically connected to the circuit board. 
     In some embodiments, the side wall of the second mounting portion defines a second through hole, and the coil is arranged in the second through hole. 
     In some embodiments, 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 to each other and intersect; the first side wall, the second side wall, and the second bottom surface together enclose to define the second mounting cavity; the first portion is arranged on the first side wall, the second portion is arranged on the second side wall, and the  31  is arranged on the first portion. 
     In some embodiments, a positioning tab is formed on each of the first side wall and the second side wall, and a positioning hole is defined on each of the first portion and the second portion; each positioning tab cooperates with a corresponding positioning hole. 
     In some embodiments, the camera motor further includes an enhancement plate; wherein the first portion is arranged on the enhancement plate, and the enhancement plate is arranged on the second mounting portion. 
     In some embodiments, the second carrying portion defines a first mounting slot, and the first magnetic member is arranged in the first mounting slot. 
     In some embodiments, the camera motor further includes a position detection part including a detection member and a sensing member; wherein the detection member is arranged on the second mounting portion, and the sensing member is arranged on the second carrying portion; the detection member is configured to sense a position of the sensing member, for detecting a relative position of the carrying member and base. 
     In some embodiments, the detection member includes a Hall sensor and the sensing member includes a second magnetic member; the Hall sensor is configured to detect the relative position of the carrying member and the base, by sensing a magnetic field strength to detect a relative position of the Hall sensor and the second magnetic member. 
     In some embodiments, a side wall of the second mounting portion defines a third through hole, and the Hall sensor is disposed in the third through hole; the second carrying portion defines a second mounting slot, and the second magnetic member is arranged in the second mounting slot. 
     In some embodiments, the detection member includes an infrared sensor, and the sensing member includes a reflecting member, capable of reflecting infrared light and arranged on the second carrying portion. 
     The camera module of the present disclosure includes the camera motor as above, and at least one of the light filter module, the image sensor, and the sensor circuit board, arranged in the receiving slot. 
     The electronic device of the present disclosure includes a shell and a camera module as above arranged in the shell. 
     Referring to  FIG.  1   , the electronic device  2000  of the present disclosure includes a camera module  1000  and a shell  3000  of the present disclosure. The camera module  1000  is arranged inside the shell  3000  and is configured to receive external light for imaging in order to make the electronic device  2000  have a filming function. 
     Referring to  FIGS.  2  to  4   , the camera module  1000  includes a camera motor  100 , a light filter module  200 , an image sensor  300 , a sensor circuit board  400 , and a lens  500 . The lens  500 , the light filter module  200 , and the image sensor  300  are arranged on the camera motor  100 , and the camera motor  100  is configured to drive the lens  500  to move along an optical axis X of the lens  500  to achieve an automatic focus function of the camera module  1000 . The light filter module  200  and the image sensor  300  are disposed on an optical path of the lens  500 , the image sensor  300  is disposed below the light filter module  200 , and the image sensor  300  is arranged on the sensor circuit board  400 . Light entering from the lens  500  is filtered by the light filter module  200  and can be received by the image sensor  300  for realizing imaging. 
     It is understood that the electronic device  2000  includes, but is not limited to, mobile phones, tablets and other mobile terminals with photo and/or video functions or other portable electronic devices. In the present disclosure, the camera module  1000  may be an autofocus camera in the electronic device  2000 . It is understood that in an electronic device  2000 , there may be only one camera module  1000  or multiple camera modules  1000  at the same time, without limitation herein. 
     Referring to  FIGS.  5  to  8   , the camera motor  100  of the present disclosure includes a base  10 , a carrying member  20 , a drive member  30 , and a housing  40 . The carrying member  20  is arranged in the base  10 , the drive member  30  is connected to the carrying member  20 , and the housing  40  is sleeved on the base  10 . The carrying member  20  is configured to carry the lens  500 , and the drive member  30  is configured to drive the carrying member  20  to move for driving the lens  500  along the optical axis X of the lens  500 . 
     Referring to  FIG.  5   , in some embodiments of the present disclosure, a bottom surface of the base  10  is recessed to define a receiving slot  101 , and the receiving slot  101  passes through a side of the base  10 . Referring to  FIGS.  3  and  4    in conjunction, the receiving slot  101  may be configured to receive at least one of the light filter module  200 , the image sensor  300 , and the sensor circuit board  400 . In some embodiments, both the light filter module  200  and the image sensor  300  are received in the receiving slot  101 , and the sensor circuit board  300  is disposed outside of the receiving slot  101 . It can be understood that in other embodiments, the receiving slot  101  may accommodate only the light filter module  200  or the image sensor  300  or the sensor circuit board  400 , or accommodate only the light filter module  200  and the image sensor  300 , or accommodate only the image sensor  300  and the sensor circuit board  400 , without limitation herein. In addition, referring to  FIG.  3   , in some embodiments, the light filter module  200  may include a bracket  201  and a filter  202 ; the filter  202  is arranged on the bracket  201 , the bracket  201  is received in the receiving slot  101 , and the image sensor  300  is disposed under the bracket  201 . Of course, in other embodiments, the specific structure of the light filter module  200  is not limited to the above, as long as it is able to achieve light filtering. 
     In addition, it is understood that in some embodiments, the camera module  1000  may not include the light filter module  200 . In some embodiments, the camera module  1000  may not include the image sensor  300 , but rather the image sensor  300  is integrated into the sensor circuit board  400  by means of an integrated combination, without limitation herein. 
     Referring to  FIG.  6    and  FIGS.  8  to  10   , in some embodiments of the present disclosure, 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 is disposed on a side of the first mounting portion  11 . The first mounting portion  11  includes a first bottom surface  111  and a first top surface  113 , and the first mounting portion  11  defines a first mounting cavity  112  passing through the first top surface  113 , that is, the first mounting portion  11  is recessed downward from the first top surface  113  to define the first mounting cavity  112 . The first mounting cavity  112  is configured to accommodate a first carrying portion  21  of the carrying member  20 . 
     The second mounting portion  12  includes a second bottom surface  121  and a second top surface  123 , and the second mounting portion  12  defines a second mounting cavity  122  passing through the second top surface  123 , that is, the second mounting portion  12  is recessed downward from the second top surface  123  to define the second mounting cavity  122 . The second mounting cavity  122  is configured to accommodate a second carrying portion  22  of the carrying member  20 . 
     The top surfaces of both 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. The second mounting portion  12  is disposed on a side of the first mounting portion  11  and a bottom of the second mounting portion  12  protrudes from a 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 . 
     Referring to  FIG.  8   , in some embodiments, 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 receiving slot  101 , that is, an inner surface of the receiving slot  101  includes the first bottom surface  111  and the side surface  124  of the second mounting portion  12 . In this way, since 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 surface  124 , thereby defining the receiving slot  101  with a substantially rectangular cross-section. 
     Specifically, in some embodiments, the bottom of the second mounting portion  12  protrudes from the first mounting portion  11 , and the first mounting portion  11  and second mounting portion  12  form an “L” shaped structure. In this way, the receiving slot  101  may be configured to place other components of the camera module  1000 . For example, as shown in  FIG.  4   , the receiving slot  101  may be configured to place other components of the camera module  1000 , such as the light filter module  200  and the image sensor  300 , other than the lens  500  and the camera motor  100 , such that the other components of the camera module  1000  may be received in the receiving slot  101 . Therefore, the height of the camera module  1000  may be effectively reduced, and thus the mobile terminal or electronic device such as a mobile phone with the camera module  1000  may be made thinner and lighter. 
     It can be understood that in some embodiments of the present disclosure, the base  10  is a one-piece structure. That is, in the present disclosure, the first mounting portion  11  and the second mounting portion  12  may be integrally molded, and the first mounting cavity  112  is connected to the second mounting cavity  122 . Specifically, the base  10  may be made of plastic material, for example, by injection molding using a mold to directly form the first mounting portion  11  with the first mounting cavity  112  and the second mounting portion  12  with the second mounting cavity  122 . Of course, it is understood that in some embodiments, the base  10  may be made of other materials, such as metal. Further, the base  10  may be formed by machining, such as a CNC machining plant, without limitation herein. 
     Referring to  FIGS.  8  and  9   , in some embodiments, the second mounting portion  12  is disposed on a side of the first mounting portion  11 , and the receiving slot  101  passes through a side wall  114  on another side of the first mounting portion  11  different from the second mounting portion  12 . In this way, the receiving slot  101  passing through the side wall  114  allows for more space in the receiving slot  101 , thereby allowing for the placement of larger components. For example, when a larger area image sensor  300  is required to be placed to improve imaging quality, the receiving slot  101  passing through the side wall  114  may enable the receiving slot  101  to have sufficient space to place the image sensor  300 . It is to be noted that in the embodiments shown in  FIG.  9   , the receiving slot  101  passes through all the side walls of the first mounting portion  11  different from the side where the second mounting portion  12  is located. It can be understood that in other embodiments, the receiving slot  101  may pass through any one or more of side walls of the first mounting portion  11  different from the side where the second mounting portion  12  is located. For example, the receiving slot  101  may pass through only the side wall of the first mounting portion  11  back from the second mounting portion  12 , without limitation herein. 
     Referring to  FIGS.  6  and  8   , the carrying member  20  includes a first carrying portion  21  and a second carrying portion  22 . The first carrying portion  21  is arranged in the first mounting cavity  112 , and the second carrying portion  22  is arranged in the second mounting cavity  122 ; the first carrying portion  21  is configured to arrange the lens  500 , and the second carrying portion  22  is connected to the drive member  30 . 
     Specifically, in some embodiments, the second carrying portion  22  is disposed on a side of the first carrying portion  21 , the shape of the first carrying portion  21  matches the shape of the first mounting portion  11 , and the second carrying portion  22  matches the shape of the second mounting portion  12 . That is, the first carrying portion  21  and the second carrying portion  22  can be each arranged on a corresponding mounting portion. 
     It can be understood that in some embodiments, the carrying member  20  may be a one-piece structure, that is, the first carrying portion  21  and the second carrying portion  22  may be molded in one piece. The carrying member  20  may be made of plastic material, for example, by injection molding using a mold to directly form the first carrying portion  21  and the second carrying portion  22 . Of course, in some embodiments, the carrying member  20  may be made of other materials, such as metal, etc., and the carrying member  20  may be formed by mechanical processing, such as CNC machining plant, without limitation herein. 
     In some embodiments, the first carrying portion  21  defines a mounting hole  211 , and the mounting hole  211  is configured to arrange the lens  500 . 
     In this way, the lens  500  may be stably arranged on the carrying member  20  through the mounting hole  211  to enable the carrying member  20  to drive the lens  500  to move along the optical axis X to achieve autofocus. Specifically, in the present disclosure, the mounting hole  211  may be a threaded hole, and the lens  500  is threaded, and the two are threaded together, with a center axis of the mounting hole  211  coinciding with the optical axis X of the lens  500 . 
     Further, in some embodiments, the first mounting portion  11  defines a first through hole  115  passing through the first bottom surface  111 , and the first through hole  115  is communicated with the first mounting cavity  112  and the receiving slot  101  and is concentric with the mounting hole  211 . 
     In this way, when the light filter module  200  and/or the image sensor  300  are arranged in the receiving slot  101 , the light entering from the lens  500  can enter the light filter module  200  through the first through hole  115  and thus enable the image sensor  300  to receive the light for imaging. 
     Referring to  FIGS.  6  and  8   , in some embodiments of the present disclosure, the drive member  30  includes a coil  31 , a first magnetic member  32 , and a circuit board  33 . The circuit board  33  is arranged on a side wall  126  of the second mounting portion  12 , the coil  31  is arranged on the circuit board  33 , the first magnetic member  32  is fixedly arranged on the second carrying portion  22 , the first magnetic member  32  and the coil  31  are arranged opposite each other, and the coil  31  can be energized to cause the first magnetic member  32  to drive the carrying member  20  to move along the optical axis X of the lens  500 , thereby driving the lens  500  to move to achieve the automatic focusing of the camera module  1000 . 
     Referring to  FIG.  6   , in some embodiments, a second through hole  127  is defined in the side wall  126  of the second mounting portion  12 , and the coil  31  is arranged on the circuit board  33  and disposed in the second through hole  127 . In this way, arranging the coil  31  inside the second through hole  127  may effectively reduce the space occupied by the coil  31  in the radial direction of the camera motor  100 , such that the size of the camera motor  100  may be made smaller. 
     Specifically, in some embodiments, the circuit board  33  is basically “L” shaped, and 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 side wall  1261  and a second side wall  1262  that are perpendicular to each other and intersect, the first side wall  1261 , the second side wall  1262 , and the second bottom surface  121  together enclose the second mounting cavity  122 . The first portion  331  of the circuit board  33  is arranged on the first side wall  1261 , the second portion  332  is arranged on the second side wall  1262 , the coil  31  is arranged on the first portion  331  of the circuit board  33 , and the second through hole  127  is defined in the first side wall  1261 . 
     In addition, in order to achieve the positioning and fixing of the circuit board  33 , a positioning tab  129  may be formed on each of the first side wall  1261  and the second side wall  1262 , and a positioning hole  334  may be defined on each of the first portion  331  and the second portion  332  of the circuit board  33 . Each positioning tab  129  may cooperate with a corresponding positioning hole  334  to achieve the positioning and mounting of the circuit board  33 . In this way, the circuit board  33  may be set up and mounted in such a way that the camera motor  100  has a more compact structure, making the camera motor  100  smaller in size. It is understood that in the embodiments of the present disclosure, the circuit board  33  may be fixed to the second mounting portion  12  by means of dispensing glue. 
     Referring to  FIG.  6   , in some embodiments, the camera motor  100  may further include an enhancement plate  60 , the first portion  331  of the circuit board  33  is arranged on the enhancement plate  60 , and the enhancement plate  60  is arranged on the second mounting portion  12 . 
     In this way, the enhancement plate  60  may effectively support the circuit board  33  to increase the strength of the circuit board  33 , so as to carry and support the coil  31  and a detection member  51  in a stable manner. 
     It can be understood that in some embodiments, the first side wall  1261  of the second mounting portion  12  may be a metal embedded member, i.e., in the embodiments, components of the base  10  other than the first side wall  1261  may be molded in one piece and made of plastic material, and the first side wall  1261  is embedded in the base  10 . For example, as shown in  FIG.  11   , which illustrates a base  10  without the first side wall  1261 , in such an embodiment, injection molding may be performed on a metal embedded member such that the metal embedded member is formed as the first side wall  1261  of the second mounting portion  12 , thereby forming the entire base  10 . In this way, the first side wall  1261  is made of metal, which has a high deformation strength and can effectively improve the strength of the first side wall  1261  to stably support the circuit board  33 . Of course, in some embodiments, the second side wall  1262  may be integrally molded with the rest of the base  10 , for example, be injection molded directly into one piece, as long as the strength of the first side wall  1261  is ensured, without specific limitation herein. 
     Further, referring to  FIG.  6   , in some embodiments, a first mounting slot  221  is defined on the second carrying portion  22 , and the first magnetic member  32  is arranged in the first mounting slot  221 . In this way, the first magnetic member  32  may be accommodated in the second carrying portion  22 , which may effectively reduce the occupied space of the first magnetic member  32  and make the size of the camera motor  100  smaller. It is understood that in the present disclosure, after the coil  31  is energized, the coil  31  generates a magnetic field, and the first magnetic member  32  may be a magnet, and the magnet moves under the action of the magnetic field generated by the coil  31 , thereby causing the carrying member  20  to move along the optical axis X of the lens  500  and thus driving the lens  500  to move along the optical axis X to achieve the focusing of the camera module  1000 . 
     Referring to  FIG.  7   , in some embodiments of the present disclosure, the camera motor  100  may further include a position detection part  50 , and the position detection part  50  includes a detection member  51  and a sensing member  52 . The detection member  51  is arranged on the second mounting portion  12 , and the sensing member  52  is arranged on the second carrying portion  22 ; the detection member  51  is configured to sense the position of the sensing member  52 , so as to detect the relative position of the carrying member  20  and the base  10 . 
     In this way, the position detection part  50  can detect the relative position of the carrying member  20  and the base  10  so as to detect the moving distance of the carrying member  20  to provide feedback on the position of the carrying member  20 , and thereby realize the closed-loop control of the movement of the carrying member  20 . 
     Specifically, the sensing member  52  may be arranged on the circuit board  33  such that the sensing member  52  is fixed relative to the second mounting portion  12 . In the focusing process of the camera module  1000 , the detection member  51  senses the position of the sensing member  52  in real time to detect the position of the carrying member  20 . When the carrying member  20  moves to move the lens  500  to a preset position, such as moving to a position of successful focusing, the sensing member  52  senses the position of the carrying member  20 , and the sensing member  52  transmits a detection signal to the circuit board  33  and a main board of the electronic device  2000  including the camera module  1000 , thereby controlling to stop energizing the coil  31  to stop driving the movement of the carrying member  20 . 
     In some embodiments, the detection member  51  may include a Hall sensor and the sensing member  52  may include a second magnetic member. The Hall sensor can detect the relative position of the carrying member  20  to the base  10 , by sensing the magnetic field strength to detect the relative position of the Hall sensor and the second magnetic member. 
     Specifically, in some embodiments, the second magnetic member may be a magnet, and when the carrying member  20  moves, the carrying member  20  drives the second magnetic member to move, thereby causing the distance between the second magnetic member and the Hall sensor to change. At the same time, the magnetic field strength detected by the Hall sensor will also change, and the Hall sensor can calculate the moving distance of the carrying member  20  based on the change in the magnetic field strength, thereby obtaining the relative position of the carrying member  20  and the base  10 . 
     It is understood that in some embodiments, the detection member  51  may be an infrared sensor, and the infrared sensor may transmit and receive infrared light. The sensing member  52  may be a reflecting member, capable of reflecting infrared light, arranged on the second carrying portion  22 . The detection member  51  and the sensing member are arranged at intervals relative to each other. The infrared light transmitted by the infrared sensor may be reflected back by the reflecting action of the reflecting member, and the infrared sensor may calculate the distance between the infrared sensor and the reflecting member based on the time difference between transmitting infrared light and receiving infrared light, and then obtain the distance of the movement of the carrying member  20  relative to the base  10 , so as to achieve feedback on the position of the carrying member  20  to achieve closed-loop control of the movement of the carrying member  20 . 
     Of course, it is also understood that in some embodiments, the infrared sensor may include a transmitter and a receiver, and the transmitter may be arranged on the circuit board  33  and the receiver may be arranged on the carrying member  20 , such that the receiver may calculate the distance between the transmitter and the receiver based on the time between the transmitter transmitting infrared light and the receiver receiving infrared light, thereby detecting the position of the carrying member  20 . 
     Referring to  FIG.  6   , in some embodiments, a third through hole  128  may be defined on the side wall  126  of the second mounting portion  12 , and the Hall sensor may be disposed in the third through hole  128 . A second mounting slot  222  is defined on the second carrying portion  22 , and the second magnetic member is arranged in the second mounting slot  222 . 
     In this way, arranging the Hall sensor in the third through hole  128  and arranging the second magnetic member in the second mounting slot  222  may effectively reduce the space occupied by the Hall sensor and the second magnetic member in the radial direction of the camera motor  100 , making the size of the camera motor  100  smaller. 
     Further, referring to  FIG.  6   , in some embodiments, the second carrying portion  22  may be arranged with a metal embedded member  90  in the second mounting slot  222 , the metal embedded member  90  being buried in the second carrying portion  22 , and the second magnetic member being arranged on the metal embedded member  90 . 
     In this way, the metal embedded member  90  may increase the strength of the second carrying portion  22  to improve the reliability of the mounting of the second magnetic member. 
     Referring to  FIGS.  5  and  6   , in some embodiments of the present disclosure, the housing  40  is sleeved over the base  10 , that is, in the present embodiments, the carrying member  20  is arranged in the base  10  and the housing  40  is sleeved over the base  10  to protect components in the base  10 . The housing  40  may define a fourth through hole  41  concentric with the mounting hole  211 , and the lens  500  may be driven by the carrying member  20  to extend outside of the housing  40  through the fourth through hole  41 . 
     Referring to  FIG.  6    and  FIGS.  10  to  12   , in some embodiments, the second side wall  1262  of the second mounting portion  12  is further arranged with a retaining wall  130 , which is exposed to an outside of the housing  40 . The first portion  331  of the circuit board  33  is disposed inside the housing  40 , and a pin  333  on the second portion  332  of the circuit board  33  abuts against on the retaining wall  130  and is exposed from the housing  40  such that the pin  333  can be connected to the main board of the electronic device  2000  arranged with the camera module  1000 . In this way, only the pin  333  of the circuit board  33  of the entire camera motor  100  is exposed from the inside of the housing  40  to be connected to the main board of the electronic device  2000 , and the camera module  1000  is more compact and aesthetically pleasing. 
     Referring to  FIG.  6   ,  FIG.  11    and  FIG.  14   , in some embodiments of the present disclosure, the carrying member  20  is able to move within the base  10  along the optical axis X of the lens  500 . The inner wall of the base  10  is formed with a ball track  131 , and a corresponding part of the carrying member  20  is formed with another ball track  131 . A ball  70  is arranged between the two ball tracks  131 , and the ball  70  rolls within the ball track  131  when the carrying member  20  rolls relative to the base  10 . In this way, the base  10  and the carrying member  20  are connected to each other through the ball  70 , and the friction between the ball  70  and the carrying member  20  as well as the base  10  is rolling friction, which is small in value. 
     Referring to  FIG.  11   ,  FIG.  13   , and  FIG.  14   , in some embodiments, a recess  116  is defined in the first mounting cavity  112  of the first mounting portion  11 , a first impact tab  212  is formed on a bottom of the first carrying portion  21 , and the first impact tab  212  is arranged facing the recess  116 . When the carrying member  20  moves along the optical axis X of the lens  500  toward the bottom of the base  10  to a limit position, the first impact tab  212  cooperates with the groove  116 . 
     In this way, the above design is convenient to position the carrying member  20  and the base  10 ; further, by virtue of the cooperation between the first impact tab  212  and the recess  116 , the contact area when the carrying member  20  and the base  10  collide is smaller, thereby making the collision generated by the vibration is small to prevent excessive vibration from affecting the imaging quality of the camera module  1000 . 
     In addition, referring to  FIG.  11   ,  FIG.  13    and  FIG.  14    again, in some embodiments, the bottom of the first carrying portion  21  is further formed with a support tab  213 , and the first mounting portion  11  is formed with a carrying tab  117  at a position facing the support tab  213 . The support tab  213  abuts against the carrying tab  117 . 
     In this way, the support tab  213  and the carrying tab  117  may enable the base  10  to carry the member  20  stably. 
     Referring to  FIG.  13   , in some embodiments, a top of the first carrying portion  21  is formed with a second impact tab  214 , and the second impact tab  214  protrudes from a top surface of the first carrying portion  21 . 
     In this way, when the carrying member  20  moves along the optical axis X of the lens  500  toward the bottom of the base  10  to the limit position, the second impact tab  214  is the first to collide with the housing  40 , and the contact area between the two is smaller and the vibration generated is smaller, thereby preventing excessive vibration from affecting the imaging quality of the camera module  1000 . 
     Referring to  FIG.  6    and  FIG.  11   , in some embodiments, a part of the first top surface  113  of the first mounting portion  11  of the base  10  is recessed downward to define an avoidance slot  118 , and the housing  40  is formed with a limit tab  42 . The limit tab  42  cooperates with the avoidance slot  118  when the housing  40  is arranged on the base  10 . In this way, the limit tab  42  and the avoidance slot  118  may position the housing  40  to improve the mounting efficiency. 
     Further, referring to  FIG.  11   , in some embodiments, a dustproof ring  80  is arranged on a hole wall of the first through hole  115 . 
     In this way, the dustproof ring  80  may seal a gap between the first carrying portion  21  and the first mounting portion  11 , thereby preventing dust or impurities inside the camera motor  100  from falling into the receiving slot  101  through the first through hole  115  and contaminating the light filter module  200  and/or the image sensor  300  and affecting the imaging quality. 
     In summary, the electronic device of the present disclosure includes a camera module  1000 , the camera module  1000  includes a camera motor  100 , the camera motor  100  includes a base  10 , a carrying member  20 , and a drive member  30 , a bottom surface of the base  10  is recessed to define a receiving slot  101 , and the receiving slot  101  passes through a side of the base  10 . The receiving slot  101  is configured to receive at least one of the light filter module  200 , the image sensor  300 , and the sensor circuit board  400  of the camera module  1000 . The carrying member  20  is configured to carry the lens  500 , and the carrying member  20  is arranged in the base  10  and can move along the optical axis X of the lens in the base  10 . The drive member  30  is connected to the carrying member  20  and is configured to drive the carrying member  20  to move along the optical axis X of the lens  500  within the base  10 . 
     In the camera motor  100 , the camera module  1000 , and the electronic device  2000  of the present disclosure, the bottom surface of the base  10  is recessed to define the receiving slot  101 , which can be configured to place at least one of the light filter module  200 , the image sensor  300 , the and sensor circuit board  400  of the camera module  1000 , thereby effectively reducing the height of the camera module  1000 . In addition, the receiving slot  101  passes through a side of the base  10  and is thus connected to the outside, such that the housing space formed by the receiving slot  101  is larger and a larger area of the light filter module  200  and the image sensor  300  can be placed to improve the imaging quality of the camera module  1000 . 
     In the description of this specification, reference to the terms “certain embodiment”, “an embodiment”, “some embodiments”, “schematic embodiment”, “example”, “specific example”, or “some examples” means that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions for the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific feature, structure, material, or characteristic described may be combined in any one or more of the embodiments or examples in a suitable manner. 
     Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present disclosure, and that variations, modifications, replacements and variants of the above embodiments may be made by those skilled in the art within the scope of the present disclosure, which is limited by the claims and their equivalents.