Motor, camera module and electronic device
By using Helbeck magnet design and controlling the direction of coil current, the problem of lens tilting caused by coil magnetic effect was solved, the driving force and optical zoom or focusing ability were improved, and noise was reduced, thus enhancing the user experience of the camera module.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-08-21
- Publication Date
- 2026-03-19
AI Technical Summary
In existing mobile phone camera modules, the magnetic effect generated after the coil is energized causes the lens group to tilt, affecting the use of optical zoom or focusing functions.
The design employs Heilbeck magnets, and the arrangement of the first and second magnetic components allows them to generate a stronger magnetic field within the same size. The direction of the current flowing through the control coil is opposite, thereby reducing or eliminating the pushing or attracting force of the drive coil on the magnetic components and improving the balance of the carrier.
It improves driving force, reduces the risk of carrier tipping, enhances the optical zoom or focusing capabilities of the camera module, and reduces motor noise, thus improving the user experience.
Smart Images

Figure CN2025116002_19032026_PF_FP_ABST
Abstract
Description
Motor, camera module and electronic device
[0001] The present application claims priority to the Chinese patent application No. 202411295566.1, filed on September 13, 2024, and entitled "Motor, camera module and electronic device", the entire content of which is incorporated herein by reference. TECHNICAL FIELD
[0002] The present application relates to the technical field of shooting devices, and in particular to a motor, a camera module and an electronic device. BACKGROUND
[0003] With the popularity and development of smart phones, mobile phone photography has become a common shooting method for people, and mobile phones with optical zoom or focusing functions are increasingly favored by users. Typically, the camera module in a mobile phone generates Lorentz force by cooperating a magnet with a coil to drive the movement of a lens group, thereby realizing the optical zoom or focusing function. However, after the coil is energized, a magnetic push / pull force is generated on the magnet due to the magnetic effect of the current, thereby causing the lens group to overturn and affecting the use of the camera module. SUMMARY
[0004] The present application provides a motor, a camera module and an electronic device. The motor includes a base, a carrier, a first coil, a second coil, a first magnetic member and a second magnetic member. Through the design of the coil and the magnetic member, the magnetic force direction of the first magnetic member subjected to the first coil and the magnetic force direction of the second magnetic member subjected to the second coil are opposite, which reduces the magnetic force interference of the coil on the magnetic member and is beneficial to the balance of the carrier.
[0005] In a first aspect, the present application provides a motor. The motor includes a base, a carrier, a first coil, a second coil, a first magnetic member and a second magnetic member. The base includes a bottom and a first side portion connected thereto, the first side portion is arranged at an angle with the bottom, the carrier is connected to the base and can move relative to the base along a first direction; the first coil and the second coil are both mounted on the first side portion and arranged in the first direction; the first magnetic member and the second magnetic member are both mounted on one side of the carrier close to the first side portion, the first magnetic member and the first coil are arranged opposite to each other, the second magnetic member and the second coil are arranged opposite to each other, and the first magnetic member and the second magnetic member are both Halbach magnets; the first magnetic member includes a first magnet and a second magnet arranged in the first direction, the first magnet and the second magnet both have a magnetic pole surface facing the first coil, and the polarity direction of the first magnet is opposite to the polarity direction of the second magnet; the second magnetic member includes a third magnet and a fourth magnet arranged in the first direction, the polarity direction of the third magnet is opposite to the polarity direction of the first magnet, and the polarity direction of the fourth magnet is opposite to the polarity direction of the second magnet.
[0006] In the present application, since the first magnetic member and the second magnetic member are both Halbach magnets, the first magnetic member and the second magnetic member can generate a stronger magnetic field under the same size, thereby improving the Lorentz force generated under the action of the driving magnet and the driving coil, and further improving the driving force of the driving coil driving the carrier relative to the base, which is beneficial to make up for the problem of insufficient power of the single-sided motor drive.
[0007] In the present application, by controlling the current direction of the first coil and the second coil to be opposite, the force generated by the first coil and acting on the first magnetic member and the force generated by the second coil and acting on the second magnetic member are opposite in direction due to the magnetic effect of the current, thereby reducing or even eliminating the pushing force or attracting force of the driving coil on the driving magnet, thereby reducing or even avoiding the risk of the carrier overturning caused by the driving coil. Since the Halbach magnets have the arrangement characteristics, when the current direction of the first coil and the second coil is opposite, the first coil and the first magnetic member can generate a Lorentz force parallel to the first direction, and since the first coil is fixed to the base, the first magnetic member will be subjected to an opposite force, the second coil and the second magnetic member can generate a Lorentz force parallel to the first direction, and since the second coil is fixed to the base, the second magnetic member will be subjected to an opposite force, and the directions of the two forces are the same.
[0008] In some possible implementation manners, the first coil comprises a first long side, a first short side, a second long side and a second short side connected in sequence and end to end, the first long side is arranged opposite to the first magnet, and the second long side is arranged opposite to the second magnet; and / or, the second coil comprises a third long side, a third short side, a fourth long side and a fourth short side connected in sequence and end to end, the third long side is arranged opposite to the third magnet, and the fourth long side is arranged opposite to the fourth magnet.
[0009] In the present implementation manner, by arranging the first long side opposite to the first magnet and the second long side opposite to the second magnet, the magnetic field action effect of the first coil after being electrified on the first magnetic member can be improved, thereby improving the size of the Lorentz force and the driving force on the first magnetic member. By arranging the third long side opposite to the third magnet and the fourth long side opposite to the fourth magnet, the magnetic field action effect of the second coil after being electrified on the second magnetic member can be improved, thereby improving the size of the Lorentz force and the driving force on the second magnetic member.
[0010] In some possible implementation manners, the first magnet has a first magnetization direction and a first polarity direction, the first magnetization direction and the first polarity direction are arranged at a non-90° angle, the second magnet has a second magnetization direction and a second polarity direction, the second magnetization direction and the second polarity direction are arranged at a non-90° angle, and the directions of the components of the first magnetization direction on the first direction and the components of the second magnetization direction on the first direction are the same.
[0011] In the present implementation, since the first magnetization direction of the first magnet deviates from the center of the first magnetic piece, so that the magnetic force lines of the N-pole surface of the first magnet pointing to the S-pole surface of the second magnet are pressed towards the center of the first magnetic piece, thereby increasing the magnetic flux density on the side of the first magnetic piece, and further increasing the magnetic flux density perpendicular to the first coil. When the first coil is energized, a greater Lorentz force can be generated in the first coil through the action of the first magnetic piece, which is beneficial to provide a stronger driving force.
[0012] In some possible implementations, the third magnet has a third magnetization direction and a third polarity direction, the third magnetization direction and the third polarity direction are arranged at a non-90° angle, the fourth magnet has a fourth magnetization direction and a fourth polarity direction, the fourth magnetization direction and the fourth polarity direction are arranged at a non-90° angle, and the components of the third magnetization direction in the first direction and the components of the fourth magnetization direction in the first direction have the same direction.
[0013] In the present implementation, since the third magnetization direction of the fourth magnet deviates from the center of the second magnetic piece, so that the magnetic force lines of the N-pole surface of the fourth magnet pointing to the S-pole surface of the third magnet are pressed towards the center of the second magnetic piece, thereby increasing the magnetic flux density on the side of the second magnetic piece, and further increasing the magnetic flux density perpendicular to the second coil. When the second coil is energized, a greater Lorentz force can be generated in the second coil through the action of the second magnetic piece, which is beneficial to provide a stronger driving force.
[0014] In some possible implementations, the first magnetic piece further includes a fifth magnet, the fifth magnet is located between the first magnet and the second magnet, and the polarity direction of the fifth magnet is different from the polarity direction of the first magnet and the polarity direction of the second magnet; and / or, the second magnetic piece further includes a sixth magnet, the sixth magnet is located between the third magnet and the fourth magnet, and the polarity direction of the sixth magnet is different from the polarity direction of the third magnet and the polarity direction of the fourth magnet.
[0015] In the present implementation, in the first magnetic piece, the fifth magnet is designed to guide the magnetic field of the first magnet and the second magnet, which is beneficial to enhance the magnetic field of the first magnetic piece acting on the first coil. In the second magnetic piece, the sixth magnet is designed to guide the magnetic field of the third magnet and the fourth magnet, which is beneficial to enhance the magnetic field of the second magnetic piece acting on the second coil.
[0016] In some possible implementations, the first magnetic piece further includes a fifth magnet and a seventh magnet, the fifth magnet and the seventh magnet are both located between the first magnet and the second magnet, the fifth magnet is closer to the first magnet relative to the seventh magnet, the polarity direction of the fifth magnet is the same as the polarity direction of the first magnet, and the polarity direction of the seventh magnet is the same as the polarity direction of the second magnet.
[0017] In the present implementation, by increasing the number of magnets, the magnetic field strength of the first magnetic member can be enhanced, thereby improving the Lorentz force generated by the first magnetic member and the first coil acting together, and thus improving the driving force of the driving assembly.
[0018] In some possible implementations, the second magnetic member further includes a sixth magnet and an eighth magnet, the sixth magnet and the eighth magnet are both located between the third magnet and the fourth magnet, the sixth magnet is closer to the third magnet relative to the eighth magnet, the polarity direction of the sixth magnet is the same as that of the third magnet, and the polarity direction of the eighth magnet is the same as that of the fourth magnet.
[0019] In the present implementation, by increasing the number of magnets, the magnetic field strength of the second magnetic member can be enhanced, thereby improving the Lorentz force generated by the second magnetic member and the second coil acting together, and thus improving the driving force of the driving assembly.
[0020] In some possible implementations, the fifth magnet has a fifth magnetization direction and a fifth polarization direction, the fifth magnetization direction and the fifth polarization direction are arranged at a non-90° angle, and / or the seventh magnet has a seventh magnetization direction and a seventh polarization direction, the seventh magnetization direction and the seventh polarization direction are arranged at a non-90° angle.
[0021] In the present implementation, the N-pole surface of the fifth magnet and the N-pole surface of the first magnet are in the same direction, so that the fifth magnet can jointly provide a magnetic field perpendicular to the first coil with the first magnet, and the fifth magnet can enhance the compression effect of the magnetic force line of the first magnet, thereby further improving the magnetic flux density of the first magnetic member on the side of the first coil, and thus improving the Lorentz force generated by the first magnetic member and the first coil acting together. Similarly, the seventh magnet and the second magnet can also improve the Lorentz force generated by the first magnetic member and the first coil acting together.
[0022] In some possible implementations, the sixth magnet has a sixth magnetization direction and a sixth polarization direction, the sixth magnetization direction and the sixth polarization direction are arranged at a non-90° angle, and / or the eighth magnet has an eighth magnetization direction and an eighth polarization direction, the eighth magnetization direction and the eighth polarization direction are arranged at a non-90° angle.
[0023] In the present implementation, the S-pole surface of the sixth magnet and the S-pole surface of the third magnet are in the same direction, so that the sixth magnet can jointly provide a magnetic field perpendicular to the first coil with the third magnet, and the sixth magnet can enhance the compression effect of the magnetic force line of the third magnet, thereby further improving the magnetic flux density of the second magnetic member on the side of the second coil, and thus improving the Lorentz force generated by the second magnetic member and the second coil acting together. Similarly, the eighth magnet and the fourth magnet can also improve the Lorentz force generated by the second magnetic member and the second coil acting together.
[0024] In some possible implementation manners, the first magnetic member and the second magnetic member are in a split structure, so that the combination of the first magnetic member and the second magnetic member is more flexible.
[0025] In some other possible implementation manners, the first magnetic member and the second magnetic member are in an integrated structure, which is beneficial to the installation of the first magnetic member and the second magnetic member.
[0026] In some possible implementation manners, the second magnet and the third magnet are in a split structure, which is beneficial to flexible arrangement of the second magnet and the third magnet.
[0027] In some other possible implementation manners, the second magnet and the third magnet are in an integrated structure.
[0028] In the implementation manner, since the polarity directions of the second magnet and the third magnet are the same, by designing the second magnet and the third magnet as an integrated structure, the repulsive force between the second magnet and the third magnet can be avoided, thereby facilitating installation.
[0029] In some possible implementation manners, the motor further includes a housing and a first shielding plate, the housing is connected with the base to enclose a receiving space, the receiving space receives the carrier, the first coil, the second coil, the first magnetic member, the second magnetic member and the first shielding plate, and the first shielding plate is located on a side of the first coil and the second coil away from the first magnetic member and the second magnetic member.
[0030] In the implementation manner, the first shielding plate can be arranged to face the drive coil to shield the drive coil, thereby reducing the noise generated when the drive coil works. By designing the first shielding plate, the first coil and the second coil can be shielded to reduce the noise generated after the first coil and the second coil are powered on, which can reduce the noise generated during the working of the motor.
[0031] In some possible implementation manners, the first coil and the second coil fall within the first shielding plate in orthographic projection on the first shielding plate, so that the first shielding plate can better shield and cover the first coil and the second coil, thereby improving the effect of shielding the noise generated when the first coil and the second coil work.
[0032] In some possible implementation manners, the thickness of the first shielding plate is greater than or equal to 0.25 mm.
[0033] In the implementation manner, since the motor adopts a single-side driving mode, the requirement for the driving force of the single side is higher, so that the first coil and the second coil generate greater noise when working. By designing the thickness of the first shielding plate to meet the above size, the noise generated when the first coil and the second coil work can be effectively shielded.
[0034] The noise generated by the motor during operation is less than or equal to decibels, the quietness of the motor operation is improved, and the use experience of the camera module and the electronic device is improved.
[0035] In some possible implementation manners, the first side portion includes a first support plate and a second support plate arranged in the first direction, the first support plate is arranged in a spaced manner with the second support plate, the first coil and the second coil are located between the first support plate and the second support plate, the first shielding plate is located between the first side portion and the inner wall of the shell, and the first shielding plate covers the interval between the first support plate and the second support plate in the first direction.
[0036] In the implementation manner, the first shielding plate covers the interval between the first support plate and the second support plate in the first direction, so that the first shielding plate, the first support plate, the second support plate, the first side portion and the bottom portion can enclose a space for accommodating the first coil and the second coil, the wrapping effect of the first coil and the second coil can be achieved in the space design, and the shielding effect of the noise generated by the first coil and the second coil during operation is improved.
[0037] In some possible implementation manners, at least part of the first coil and the second coil is embedded in the first side portion.
[0038] In the implementation manner, the first coil and the second coil can be formed into an integrated structure with the first side portion by injection molding, so as to improve the mounting stability of the first coil and the second coil. Since the first side portion can reinforce the mounting of the first coil and the second coil, and the first side portion can cover at least part of the first coil and the second coil, the vibration generated by the first coil and the second coil during operation is smaller, the noise generated by the first coil and the second coil during operation is reduced, and the first shielding plate does not need to be designed to be very thick to achieve the expected noise shielding effect.
[0039] In some possible implementation manners, the motor further includes a position detection assembly, the position detection assembly includes a magnetic grid and a tunnel magnetoresistance sensor; the magnetic grid is installed on the carrier and is arranged in an extending manner along the first direction, and the tunnel magnetoresistance sensor is installed on the base; the position detection assembly is configured to detect the position of the tunnel magnetoresistance sensor relative to the magnetic grid, so as to detect the position of the carrier relative to the base.
[0040] In the implementation manner, the position detection assembly can detect the position of the carrier relative to the base by sensing the position of the tunnel magnetoresistance sensor relative to the magnetic grid, so as to assist the driving assembly in driving the carrier to move, and improve the movement accuracy of the carrier by feeding back the position of the carrier, thereby improving the optical zoom / focus quality of the camera module.
[0041] In the implementation, the tunneling magnetoresistance sensor and the magnetic grid are arranged in the mounting manner, so that the tunneling magnetoresistance sensor can detect the position of the tunneling magnetoresistance sensor relative to the magnetic grid by sensing the magnetic field change of the magnetic grid during the movement of the carrier relative to the base in the first direction, thereby detecting the position of the carrier relative to the base, and the position detection accuracy of the carrier is improved, and the quality of optical zoom / focus of the camera module is improved.
[0042] In some possible implementation, the carrier comprises a first carrier portion, a second carrier portion, a third carrier portion and a fourth carrier portion connected in sequence; the first carrier portion is close to the first side portion relative to the third carrier portion; the first magnetic member and the second magnetic member are arranged on the side of the first carrier portion away from the third carrier portion; and the magnetic grid is arranged on the first carrier portion.
[0043] In the implementation, the magnetic grid is arranged on the first carrier portion, and the tunneling magnetoresistance sensor and the circuit board are arranged close to the magnetic grid, so that the tunneling magnetoresistance sensor, the magnetic grid, the driving magnet and the driving coil are concentrated near the first side portion of the carrier, thereby the tunneling magnetoresistance sensor and the magnetic grid can be away from the external magnetic interference source on the side of the second side portion away from the first side portion of the motor, and the risk of magnetic interference on the tunneling magnetoresistance sensor and the magnetic grid is reduced.
[0044] In some possible implementation, the motor further comprises a second shielding plate, the second shielding plate comprises a first sub-plate and a second sub-plate, and the first sub-plate and the second sub-plate are connected in an L shape; the second shielding plate is arranged on the side of the first carrier portion facing the base; the magnetic grid is arranged on the second shielding plate; the first sub-plate is located between the magnetic grid and the first magnetic member and the second magnetic member; the second sub-plate is located between the magnetic grid and the coil; and the tunneling magnetoresistance sensor is arranged on the base.
[0045] In the implementation, the first sub-plate can be located between the magnetic grid and the first magnetic member and the second magnetic member, so as to reduce the magnetic field interference between the magnetic grid and the first magnetic member and the second magnetic member. The second sub-plate can be located on the side of the magnetic grid away from the third carrier portion, so as to shield the magnetic field of the first magnetic member and the second magnetic member, thereby reducing the magnetic field interference of the first magnetic member and the second magnetic member on the magnetic grid.
[0046] In the implementation, the second sub-plate of the second shielding plate can be located between the magnetic grid and the driving coil, so that the second sub-plate can separate the magnetic grid and the driving coil, thereby reducing the magnetic field interference between the driving coil and the magnetic grid after the driving coil is powered on, and the stability of the position detection of the position detection assembly is improved.
[0047] In some possible implementation, the motor further comprises a first connecting member and a second connecting member, the first connecting member and the second connecting member are arranged in a spaced manner, and the first connecting member and the second connecting member are both used for connecting the carrier and the base; the first connecting member is a sliding shaft, or a reed, or a suspension wire, or a ball; and / or, the second connecting member is a sliding shaft, or a reed, or a suspension wire, or a ball.
[0048] In the present implementation, by setting the first connecting member and the second connecting member as a sliding shaft and respectively setting in the first sliding groove and the second sliding groove, the stability of the carrier moving along the first direction relative to the base is improved. When the first connecting member and the second connecting member are a reed or a suspension wire, the carrier does not need to be provided with the first sliding groove and the second sliding groove, and the reed or the suspension wire not only plays a role of guiding the movement of the carrier, but also limits the movement stroke of the carrier through the elasticity of the reed or the suspension wire.
[0049] In some possible implementations, the first side portion includes first and second support plates arranged in the first direction, and the first and second support plates are arranged at intervals. The base further includes a second side portion arranged opposite to the first side portion and connected to the bottom portion. The second side portion includes third and fourth support plates arranged in the first direction, and a connecting plate connected between the third and fourth support plates. The carrier includes first, second, third, and fourth carrier portions connected in sequence. The first carrier portion is provided with the first and second magnetic members, and at least part of the first carrier portion is located between the first and second support plates. The second carrier portion is closer to the bottom portion than the fourth carrier portion, and at least part of the third carrier portion is located between the third and fourth support plates.
[0050] In the present implementation, by mounting at least part of the first carrier portion between the first and second support plates and mounting at least part of the third carrier portion between the third and fourth support plates, the additional occupied space of the carrier is reduced, the space utilization is improved, and the miniaturization design of the motor is facilitated.
[0051] In some possible implementations, the motor further includes first and second connecting members arranged at intervals. The first and second connecting members are used to connect the carrier and the base. The first connecting member is a sliding shaft, and the second connecting member is a sliding shaft. The second carrier portion is provided with a first sliding groove, or the first carrier portion is provided with a first sliding groove, or the first and second carrier portions enclose a first sliding groove. The second carrier portion is provided with a second sliding groove, or the third carrier portion is provided with a second sliding groove, or the third and second carrier portions enclose a second sliding groove. An opening of the first sliding groove faces the bottom portion, and an extension direction of the first sliding groove is parallel to the first direction. The first connecting member is mounted in the first sliding groove and located between the carrier and the bottom portion. An opening of the second sliding groove faces the bottom portion, and an extension direction of the second sliding groove is parallel to the first direction. The second connecting member is mounted in the second sliding groove and located between the carrier and the bottom portion.
[0052] In the present implementation, by setting the first connecting member and the second connecting member as sliding shafts and respectively arranging them in the first sliding groove and the second sliding groove, the stability of the carrier moving relative to the base along the first direction is improved, and thus the quality of the optical zoom / focus of the camera module is improved.
[0053] In some possible implementations, the first sliding groove is a U-shaped groove or an L-shaped groove, and the second sliding groove is a V-shaped groove; or, the first sliding groove is a V-shaped groove, and the second sliding groove is a U-shaped groove or an L-shaped groove.
[0054] In the present implementation, as one of the first sliding groove and the second sliding groove can be a U-shaped groove or an L-shaped groove, and the other can be a V-shaped groove, the stability of the matching connection of the first sliding shaft and the second sliding shaft to the carrier is improved, and thus the stability of the carrier installed on the base is improved, the stability of the carrier moving relative to the base along the first direction is improved, and thus the quality of the optical zoom / focus of the camera module is improved.
[0055] In some possible implementations, the motor further includes a first buffer, a second buffer, a third buffer, and a fourth buffer; the first buffer is arranged on a surface of the first carrier facing the first support plate, and / or the first buffer is arranged on a surface of the first support plate facing the first carrier; the second buffer is arranged on a surface of the first carrier facing the second support plate, and / or the second buffer is arranged on a surface of the second support plate facing the first carrier; the third buffer is arranged on a surface of the third carrier facing the third support plate, and / or the third buffer is arranged on a surface of the third support plate facing the third carrier; and the fourth buffer is arranged on a surface of the third carrier facing the fourth support plate, and / or the fourth buffer is arranged on a surface of the fourth support plate facing the third carrier.
[0056] In the present implementation, as the two surfaces of the first carrier opposite along the first direction can be respectively provided with the first buffer and the second buffer, and the two surfaces of the third carrier opposite along the first direction can be respectively provided with the third buffer and the fourth buffer, during the movement of the carrier relative to the base along the first direction, the first buffer can buffer the collision between the first carrier and the first support plate, the second buffer can buffer the collision between the first carrier and the second support plate, the third buffer can buffer the collision between the third carrier and the third support plate, and the fourth buffer can buffer the collision between the third carrier and the fourth support plate, and thus the risk of damage caused by the collision between the carrier and the base is reduced, and the service life of the motor is improved.
[0057] In some possible implementations, the motor further includes a balancing assembly connected between the third carrier and the bottom, and the balancing assembly is configured to generate a force acting on the third carrier and pointing to the bottom, and / or the balancing assembly is configured to generate a force acting on the bottom and pointing to the third carrier.
[0058] In the present embodiment, the first magnetic member and the second magnetic member are installed on the first loading part of the carrier, and no magnetic member is installed on the third loading part of the carrier, so that the load of the first loading part is greater than the load of the third loading part, which may cause balance interference to the movement of the carrier. The balance assembly is designed to act between the third loading part and the bottom to generate a force between the third loading part and the bottom, thereby pulling the third loading part towards the bottom, which is equivalent to increasing the load of the third loading part, thereby balancing the loads of the first loading part and the third loading part. At this time, the pressure between the first loading part and the first connecting member and the pressure between the third loading part and the second connecting member can be close or even the same, thereby balancing the friction on the side of the first loading part and the friction on the side of the third loading part during the movement of the carrier, and facilitating the improvement of the movement balance of the carrier.
[0059] In some possible implementations, the balance assembly includes a balance magnet and a magnetic body, the balance magnet and the magnetic body are at least partially opposite to each other, and the balance magnet magnetically attracts the magnetic body. The balance magnet is installed on the third loading part, and the magnetic body is installed on the bottom. Alternatively, the balance magnet is installed on the bottom, and the magnetic body is installed on the third loading part.
[0060] In the present embodiment, the balance magnet and the magnetic body are provided to utilize the magnetic attraction force therebetween to pull the third loading part towards the bottom, thereby balancing the loads of the first loading part and the third loading part. Since the balance magnet and the magnetic body can still generate a magnetic attraction force in a spaced arrangement, the design of the balance magnet and the magnetic body will not cause frictional interference to the movement of the carrier relative to the base.
[0061] In some possible implementations, the balance assembly includes an elastic member, the elastic member connects the third loading part and the bottom, and the elastic member is in a stretched state.
[0062] In the present embodiment, the elastic member is in a stretched state, so that the elastic member can act on the third loading part and the bottom through the elastic restoring force thereof to generate a force between the third loading part and the bottom, thereby pulling the third loading part towards the bottom, thereby balancing the loads of the first loading part and the third loading part. Since the elastic member can deform in various directions, the elastic member can be pulled in the first direction when the carrier moves relative to the base, and will not cause interference to the movement of the carrier. In addition, the elastic member can limit the movement of the carrier relative to the base through the elasticity thereof, and limit the carrier within a movement stroke range, which is beneficial to anti-collision.
[0063] In some possible implementations, the motor is a single-sided driving motor, and the motor is configured to drive the first magnetic member and the second magnetic member to move the carrier relative to the base after the first coil and the second coil are energized.
[0064] In the present implementation, since the motor in the camera module is a single-side driving motor, and the driving assembly is installed on the side of the carrier away from the side camera module, when the driving assembly is working, the magnetic interference source in the side camera module to the camera module is far away, the risk of the driving assembly in the camera module being interfered by the magnetic interference is reduced, and the stability of the motor driving the carrier to move is improved, which is beneficial to improve the quality of the camera module to realize optical zoom / focus.
[0065] In a second aspect, the present application provides a camera module. The camera module comprises a lens, an image sensor, and any of the foregoing motors. The image sensor is located on the image side of the lens, and the carrier of the motor is installed at least part of the lens in the lens.
[0066] In the present application, the stability of the motor driving is improved, and thus the quality of the camera module to realize optical zoom / focus is improved.
[0067] In a third aspect, the present application provides an electronic device. The electronic device comprises a housing and the camera module as described above, and the camera module is installed on the housing.
[0068] In the present application, the quality of the camera module to realize optical zoom / focus is improved, and thus the use experience of the electronic device is improved.
[0069] In some possible implementations, the electronic device further comprises a side camera module, and the side camera module is installed on the housing and located on the side of the second side of the base of the motor in the camera module.
[0070] In the present implementation, since the motor in the camera module is a single-side driving motor, and the driving assembly is installed on the side of the carrier away from the side camera module, when the driving assembly is working, the magnetic interference source in the side camera module to the camera module is far away, the risk of the driving assembly in the camera module being interfered by the magnetic interference is reduced, and the stability of the motor driving the carrier to move is improved, which is beneficial to improve the quality of the camera module to realize optical zoom / focus. BRIEF DESCRIPTION OF DRAWINGS
[0071] FIG. 1A is a structural schematic diagram of an electronic device in some embodiments according to the present application;
[0072] FIG. 1B is a partially exploded structural schematic diagram of the electronic device shown in FIG. 1A;
[0073] FIG. 2A is a partially cross-sectional structural schematic diagram of the electronic device shown in FIG. 1A along line A-A in some embodiments;
[0074] FIG. 2B is an example diagram of the relative positions of two camera modules in the electronic device shown in FIG. 1A in some embodiments;
[0075] Figure 3 is a schematic diagram of a structure of a motor in the camera module shown in Figure 2B in some embodiments;
[0076] Figure 4 is a schematic diagram of a partial structure of the motor shown in Figure 3 in some embodiments;
[0077] Figure 5A is a schematic diagram of a structure of a base in the motor shown in Figure 3 in some embodiments;
[0078] Figure 5B is a schematic diagram of a structure of the base shown in Figure 5A in another perspective view;
[0079] Figure 6 is a schematic diagram of a structure of a base mounting portion in the base shown in Figure 5A in some embodiments;
[0080] Figure 7 is a schematic diagram of a partial structure of the structure shown in Figure 6 in some embodiments;
[0081] Figure 8A is a schematic diagram of a structure of a base mounting driving coil in the base shown in Figure 5A in some embodiments;
[0082] Figure 8B is a schematic diagram of a structure of the base mounting driving coil shown in Figure 5A in another perspective view;
[0083] Figure 9A is a schematic diagram of a structure of a carrier in the motor shown in Figure 3 in some embodiments;
[0084] Figure 9B is a schematic diagram of a structure of the carrier shown in Figure 9A in another perspective view;
[0085] Figure 10 is a schematic diagram of a structure of the carrier shown in Figure 9A in some embodiments, along line B-B;
[0086] Figure 11A is a schematic diagram of a partial structure of a carrier mounting portion in the carrier shown in Figure 9A in some embodiments;
[0087] Figure 11B is a schematic diagram of a structure of the structure shown in Figure 11A in another perspective view;
[0088] Figure 12 is a schematic diagram of a partial structure of the structure shown in Figure 11A in some embodiments;
[0089] Figure 13 is a schematic diagram of a structure of the structure shown in Figure 11A in some embodiments, along line C-C;
[0090] Figure 14 is a schematic diagram of a structure of the structure shown in Figure 11A mounted on the structure shown in Figure 6 in some embodiments;
[0091] Figure 15 is a schematic diagram of a partial structure of the structure shown in Figure 14 in some embodiments;
[0092] Figure 16 is a schematic diagram of a structure of the structure shown in Figure 14 in some embodiments, along line D-D;
[0093] Fig. 17A is a schematic view of the structure of the driving magnets and the driving coils in the structure shown in Fig. 14 in some embodiments;
[0094] Fig. 17B is a schematic view of the structure shown in Fig. 17A from another perspective;
[0095] Fig. 18 is a schematic view of the structure of the driving magnets and the driving coils in the structure shown in Fig. 14 in other embodiments;
[0096] Fig. 19A is a schematic view of the structure of the driving magnets and the driving coils in the structure shown in Fig. 14 in yet other embodiments;
[0097] Fig. 19B is a schematic view of the structure of the driving magnets and the driving coils in the structure shown in Fig. 14 in yet other embodiments;
[0098] Fig. 20 is a schematic view of the structure of the structure shown in Fig. 14 along line D-D in other embodiments;
[0099] Fig. 21 is a schematic view of the structure of the structure shown in Fig. 14 along line D-D in yet other embodiments;
[0100] Fig. 22A is a schematic view of the structure of the first shield plate installed in the housing in the motor shown in Fig. 3 in some embodiments;
[0101] Fig. 22B is a schematic view of the structure shown in Fig. 22A along line E-E in some embodiments;
[0102] Fig. 23 is a schematic view of the structure of the motor shown in Fig. 3 along line F-F in one embodiment;
[0103] Fig. 24 is a schematic view of the structure of the motor shown in Fig. 3 without the first shield plate in some embodiments. DETAILED DESCRIPTION
[0104] The embodiments of the present application will be described below in conjunction with the accompanying drawings.
[0105] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting" should be understood in a broad sense, for example, "connecting" can be detachably connecting or non-detachably connecting; can be directly connecting or indirectly connecting through an intermediate medium. "Multiple" means at least two.
[0106] The positional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inner", "outer", "top", "bottom", "side" and the like, are only the directions of the drawings, and therefore, the positional terms are used for better and clearer illustration and understanding of the embodiments of the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.
[0107] In the embodiments of the present application, the relative positional relationship mentioned, such as parallel, vertical, aligned and the like, are all in view of the current process level, and are not strictly limited, and a small amount of deviation is allowed, such as approximately parallel, approximately vertical, approximately aligned and the like. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0 degrees and 10 degrees. For example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80 degrees and 100 degrees.
[0108] In the embodiments of the present application, the terms "first", "second", "third", "fourth" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth" can explicitly or implicitly include one or more of the features.
[0109] Please refer to FIG. 1A and FIG. 1B, FIG. 1A is a structural schematic diagram of an electronic device 1000 in some embodiments provided by the present application; and FIG. 1B is a partially exploded structural schematic diagram of the electronic device 1000 shown in FIG. 1A.
[0110] In some embodiments, the electronic device 1000 can be a mobile phone, a tablet personal computer, a laptop computer, a smart screen, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, an AR helmet, virtual reality (VR) glasses or a VR helmet, and the like, which have a camera function. In the embodiment of FIG. 1A, the electronic device 1000 is taken as an example of a mobile phone for description, of course, other types of electronic devices 1000 can also adopt similar structures, which will not be described hereinafter.
[0111] It can be understood that FIGS. 1A and 1B only schematically show some components included in the electronic device 1000, and actual shapes, actual sizes, actual positions, and actual structures of the components are not limited by FIGS. 1A and 1B. The electronic device 1000 can also include more or fewer components than FIGS. 1A and 1B.
[0112] In some embodiments, the electronic device 1000 can include a camera module 100, a screen 200, and a housing 300. The screen 200 is configured to display images, videos, and the like. The screen 200 can include a light-transmitting panel 2001 and a display screen 2002. The light-transmitting panel 2001 and the display screen 2002 are stacked and fixedly connected. The light-transmitting panel 2001 is mainly configured to protect and prevent dust from the display screen 2002. The material of the light-transmitting panel 2001 includes, but is not limited to, glass. The display screen 2002 can be a flexible display screen or a rigid display screen. For example, the display screen 2002 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light emitting diode (QLED) display screen, a liquid crystal display (LCD), and the like.
[0113] The shell 300 is used to protect the internal electronic devices of the electronic device 1000. The shell 300 can include a cover plate 3001, a frame 3002, and a camera decoration piece 3003. The cover plate 3001 is located on the side of the display screen 2002 away from the light transmission panel 2001, and is stacked with the light transmission panel 2001 and the display screen 2002. The frame 3002 is fixed to the cover plate 3001. The frame 3002 can be fixed to the cover plate 3001 by adhesive, for example. The frame 3002 can also be an integral structure with the cover plate 3001, i.e., the frame 3002 and the cover plate 3001 are an integral structure. The frame 3002 is located between the cover plate 3001 and the light transmission panel 2001. The light transmission panel 2001 can be fixed to the frame 3002 by adhesive. The light transmission panel 2001, the cover plate 3001, and the frame 3002 form an internal accommodating space of the electronic device 1000. The internal accommodating space accommodates the display screen 2002. The cover plate 3001 can be made of metal, plastic, glass, or the like. The cover plate 3001 can be a single-material plate or a plate structure formed by splicing multiple plates made of multiple materials.
[0114] The camera module 100 is used to take photos / videos, for example. The camera module 100 is installed in the shell 300 and located in the internal accommodating space of the electronic device 1000. The camera module 100 can be used as a rear camera, for example. The light entrance surface of the camera module 100 faces the camera decoration piece 3003. The camera decoration piece 3003 is used to protect the camera module 100.
[0115] In some embodiments, the camera decoration piece 3003 protrudes to the side of the cover plate 3001 away from the light transmission panel 2001. In this way, the camera decoration piece 3003 can increase the installation space of the camera module 100 in the thickness direction of the electronic device 1000. In other embodiments, the camera decoration piece 3003 can be flush with the cover plate 3001 or recessed into the internal accommodating space of the electronic device 1000.
[0116] The camera decoration piece 3003 is provided with a light transmission hole 3003a. The light transmission hole 3003a allows the scene light to enter the light entrance surface of the camera module 100. In other embodiments, the electronic device 1000 can not include the camera decoration piece 3003. In this case, the cover plate 3001 is no longer provided with the mounting hole 3001a, and the light transmission hole 3003a is provided on the cover plate 3001. The light transmission hole 3003a allows the scene to enter the light entrance surface of the camera module 100.
[0117] In some embodiments, the camera module 100 can also be used as a front camera. For example, the light entrance surface of the camera module 100 faces the light-transmitting panel 2001. The display screen 2002 is provided with a light path avoiding hole. The light path avoiding hole allows the scene light to pass through the light-transmitting panel 2001 and then enter the light entrance surface of the camera module 100.
[0118] In some embodiments, the electronic device 1000 can further include one or more other camera modules. For example, the electronic device 1000 shown in FIGS. 1A and 1B can include two camera modules 100. The two camera modules 100 can be of the same type, for example, both of the camera modules 100 are periscopic camera modules. Alternatively, the two camera modules 100 can be of different types, for example, one camera module 100 is a periscopic camera module and the other camera module 100 is an upright camera module. The present application is not limited in this regard.
[0119] In some embodiments, the two camera modules 100 can be arranged side by side (as shown in FIGS. 1A and 1B). In other embodiments, the two camera modules 100 can be arranged staggered, that is, one camera module 100 can be closer to the top side of the electronic device 1000 than the other camera module 100.
[0120] In some embodiments, when the two camera modules 100 are periscopic camera modules, the light path folding directions of the two camera modules 100 can be consistent (as shown in FIGS. 1A and 1B). In other embodiments, the light path folding directions of the two camera modules 100 can be inconsistent, for example, the light path folding directions of the two camera modules 100 can be opposite, that is, one of the camera modules 100 shown in FIGS. 1A and 1B can be arranged by rotating 180°.
[0121] It should be noted that the number, type, arrangement of the camera modules 100 shown in FIGS. 1A and 1B are only for illustration and do not limit the design of the camera modules 100 in the electronic device 1000 of the present application. In other embodiments, the electronic device 1000 can include only one camera module 100.
[0122] In some embodiments, as shown in FIG. IB, the electronic device 1000 can further include a circuit assembly 400 and an image processor 500, which are located in the internal accommodating space of the electronic device 1000, the image processor 500 is fixed to the circuit assembly 400 and electrically connected to the circuit assembly 400. The image processor 500 is in communication connection with the camera module 100. The image processor 500 is configured to acquire image data from the camera module 100 and process the image data. It can be understood that the communication connection between the camera module 100 and the image processor 500 can include data transmission through electrical connection such as wiring, and can also be achieved through coupling and other data transmission modes.
[0123] In some embodiments, the electronic device 1000 can further include an analog-to-digital converter (also referred to as an A / D converter, not shown in the figure). The analog-to-digital converter is connected between the camera module 100 and the image processor 500. The analog-to-digital converter is configured to convert the signal generated by the camera module 100 into a digital image signal and transmit it to the image processor 500, and then the image processor 500 processes the digital image signal, and finally displays the image or video through the screen 200.
[0124] In some embodiments, the electronic device 1000 can further include a memory (not shown in the figure), which is in communication connection with the image processor 500. After the image processor 500 processes the image digital signal, the image is transmitted to the memory, so that when the image needs to be viewed later, the image can be found in the memory at any time and displayed on the screen 200. In some embodiments, the image processor 500 will also compress the processed image digital signal and store it in the memory to save memory space.
[0125] In other embodiments, the electronic device 1000 can also not include the screen 200.
[0126] It can be understood that the installation position of the camera module 100 of the electronic device 1000 shown in FIGS. 1A and 1B is only schematic, and the application does not strictly limit the installation position of the camera module 100. In some other embodiments, the camera module 100 can also be installed at other positions of the electronic device 1000, for example, the camera module 100 can be installed at the upper middle or upper right corner of the back of the electronic device 1000. In some other embodiments, the electronic device 1000 can include a terminal body and an auxiliary component that can rotate, move or detach relative to the terminal body, and the camera module 100 can also be arranged on the auxiliary component.
[0127] Please refer to FIG. 1A to FIG. 2A, and FIG. 2A is a schematic diagram of a partial cross-sectional structure of the electronic device 1000 along line A-A in some embodiments.
[0128] In some embodiments, the camera module 100 can include a motor 20, a light path folding element 30, a lens 40, and an image sensor 50. The light path folding element 30, the lens 40, and the image sensor 50 can be arranged in sequence along an optical axis. At least part of the lens in the lens 40 can be mounted in the motor 20, and the motor 20 can drive the lens 40 to move along the optical axis to achieve focusing or zooming. It should be noted that the dotted line with an arrow in FIG. 2A schematically shows the direction of light path transmission.
[0129] For ease of description, a coordinate system is defined, wherein the direction in which the motor 20 drives the lens 40 to move is defined as the X-axis direction, also referred to as the first direction X, the direction in which light is incident from the outside to the light path folding element 30 is defined as the Z-axis direction, also referred to as the second direction Z, and the direction perpendicular to both the X-axis direction and the Z-axis direction is defined as the Y-axis direction, also referred to as the third direction Y. It should be noted that the coordinate system defined in the embodiments of the present application is only used to schematically show the relative positions between various drawings, and in some other embodiments, the coordinate system can also be defined in other ways, which are not limited herein.
[0130] In the present embodiment, the light path folding element 30 is used to fold the light path, i.e., to fold the light path from the second direction Z to the first direction X, so that the light can pass through the lens 40 and be incident to the image sensor 50. The light path folding element 30 plays a role of light path folding, thereby reducing the length of the camera module 100 and facilitating the miniaturization of the camera module 100.
[0131] For example, the light path folding element 30 can be a prism, or a mirror, or a combination of a prism and a lens, or a combination of a mirror and a lens, etc. In some other embodiments, the camera module 100 can also not include the light path folding element 30, in which case the optical axis direction of the lens 40 is the direction of light incidence, and the camera module 100 is a straight camera.
[0132] In some embodiments, the camera module 100 can further include a rear prism (not shown in the figure), which can be located between the lens 40 and the image sensor 50. The rear prism is used to fold the light path, so as to further reduce the overall length of the camera module 100 and facilitate the miniaturization of the camera module 100. In addition, due to the arrangement of the rear prism, the image sensor 50 is inclined, thereby reducing the height dimension of the image sensor 50 in the camera module 100, which facilitates the reduction of the shoulder height of the camera module 100, thereby facilitating the lightweight design of the camera module 100.
[0133] Please refer to FIG. 2A and FIG. 2B, FIG. 2B is an example diagram of relative positions of the two camera modules 100 in the electronic device 1000 in some embodiments. It should be noted that, for the convenience of description, in the following text, the camera module 100 on the right side in FIG. 2B is referred to as the camera module 100, and the camera module 100 on the left side is referred to as the side camera module 600. It should be noted that the side only means the camera module 100 located beside the camera module 100 on the left side, and does not include other meanings, nor is it a functional description.
[0134] In some embodiments, the motor 20 can include the base 1, the carrier 2, and the driving assembly 3. The driving assembly 3 can be mounted on the side of the carrier 2 away from the side camera module 600. The driving assembly 3 can include the driving coil 31 and the driving magnet 32. The driving magnet 32 and the driving coil 31 are arranged opposite to each other. The driving magnet 32 can be mounted on the carrier 2, and the driving coil 31 can be mounted on the carrier 2. The motor 20 can be a single-sided driving motor 20. The motor 20 is configured to drive the carrier 2 to move relative to the base 1 along the first direction X by energizing the driving coil 31 to drive the driving magnet 32.
[0135] In the present embodiment, since the motor 20 in the camera module 100 is a single-sided driving motor 20, and the driving assembly 3 is mounted on the side of the carrier 2 away from the side camera module 600, when the driving assembly 3 is working, the magnetic interference source in the side camera module 600 to the camera module 100 is far away, which reduces the risk of the driving assembly 3 in the camera module 100 being interfered by the magnetic field, thereby improving the stability of the motor 20 driving the carrier 2 to move, and is conducive to improving the quality of the camera module 100 achieving optical zoom / focus.
[0136] In some examples, the side camera module 600 can include the first driving assembly 6001, the second driving assembly 6002, and the side carrier 6003. The first driving assembly 6001 and the second driving assembly 6002 can be mounted on opposite sides of the side carrier 6003. In the present embodiment, since the driving assembly 3 in the camera module 100 is mounted on the side of the carrier 2 away from the side camera module 600, the magnetic interference of the driving assembly 3 to the side camera module 600 is also small. Therefore, the first driving assembly 6001 and the second driving assembly 6002 can be respectively mounted on opposite sides of the side carrier 6003 in the side camera module 600, which is conducive to improving the magnetic driving capability of the side camera module 600.
[0137] In some other examples, the side camera module 600 can only include the first driving assembly 6001, and the first driving assembly 6001 can be mounted on the side of the side carrier 6003 away from the camera module 100, i.e., the side camera module 600 also drives the side carrier 6003 to move through single-side driving. In this embodiment, due to the driving design of the side camera module 600, the distance between the magnetic interference source in the side camera module 600 and the driving assembly 3 in the camera module 100 is further increased, the risk of the driving assembly 3 in the camera module 100 being interfered by the magnetic interference is further reduced, and the stability of the motor 20 driving the carrier 2 to move is improved, which is conducive to improving the quality of the camera module 100 to realize optical zoom / focus.
[0138] It should be noted that the magnetic interference source of the driving assembly 3 in the camera module 100 in the side camera module 600 can also be an anti-shake driving assembly (not shown in the figure), a circuit component, etc., which is not limited here.
[0139] It should be noted that the relative position of the side camera module 600 and the camera module 100 is only illustrative, and in some other embodiments, the side camera module 600 can also be mounted in other postures relative to the camera module 100, which is not limited here.
[0140] Please refer to FIG. 3 and FIG. 4, FIG. 3 is a structural schematic diagram of the motor 20 in the camera module 100 shown in FIG. 2B in some embodiments; and FIG. 4 is a partial structural exploded schematic diagram of the motor 20 shown in FIG. 3 in some embodiments.
[0141] It can be understood that FIG. 3 and FIG. 4 only schematically show some components included in the motor 20, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIG. 3 and FIG. 4, and the motor 20 can also include more or fewer components compared with FIG. 3 and FIG. 4.
[0142] In some embodiments, the motor 20 can also include a first connecting piece 4a, a second connecting piece 4b, a first circuit board 5, a position detection assembly 6, a first shielding plate 7, a second shielding plate 8, a magnetic conducting plate 9 and a housing 10. The driving coil 31 can include a first coil 311 and a second coil 312, and the driving magnet 32 can include a first magnetic piece 321 and a second magnetic piece 322.
[0143] For example, the housing 10 can be connected with the base 1 to enclose a receiving space 14. The receiving space 14 can receive the carrier 2, the first connecting piece 4a, the second connecting piece 4b, the first circuit board 5, the position detection assembly 6, the first shielding plate 7, the second shielding plate 8, the magnetic conducting plate 9 and the driving assembly 3.
[0144] Exemplarily, the carrier 2 can be connected to the base 1 through the first connecting member 4a and the second connecting member 4b, and the driving assembly 3 can drive the carrier 2 to move along the first direction X relative to the base 1 through the first connecting member 4a and the second connecting member 4b.
[0145] Exemplarily, the driving coil 31 can be mounted on the base 1, and the driving magnet 32 can be mounted on the carrier 2. When the driving coil 31 is energized, the driving coil 31 and the driving magnet 32 can interact to generate a Lorentz force to push the driving magnet 32 to drive the carrier 2 to move.
[0146] Exemplarily, the first shielding plate 7 can be located on a side of the driving coil 31 facing away from the driving magnet 32. The first shielding plate 7 can be arranged to face the driving coil 31 to shield the driving coil 31, thereby reducing noise generated by the driving coil 31 when operating.
[0147] Exemplarily, the magnetic conducting plate 9 can be mounted on the driving magnet 32 to improve the directivity of the magnetic field of the driving magnet 32, which is conducive to improving the size of the Lorentz force generated between the driving magnet 32 and the driving coil 31.
[0148] Exemplarily, the position detection assembly 6 can include a magnetic grid 61 and a tunnel magnetoresistance (TMR) sensor. The magnetic grid 61 can be mounted on the carrier 2, and the tunnel magnetoresistance sensor 62 can be mounted on the first circuit board 5. The first circuit board 5 can be mounted on the carrier 2. In this embodiment, the position detection assembly 6 can detect the position of the carrier 2 relative to the base 1 by sensing the position of the tunnel magnetoresistance sensor 62 relative to the magnetic grid 61, which is conducive to assisting the driving assembly 3 to drive the carrier 2 to move, and improving the movement accuracy of the carrier 2 by feeding back the position of the carrier 2, thereby improving the optical zoom / focus quality of the camera module 100.
[0149] Exemplarily, the second shielding plate 8 can be used to wrap at least part of the magnetic grid 61 to block the magnetic field interference between the magnetic grid 61 and the driving assembly 3, thereby reducing the risk of magnetic interference.
[0150] Please refer to FIG. 5A and FIG. 5B. FIG. 5A is a structural schematic diagram of the base 1 in some embodiments of the motor 20 shown in FIG. 3; and FIG. 5B is a structural schematic diagram of the base 1 shown in FIG. 5A from another perspective.
[0151] In some embodiments, the base 1 can include a bottom 11, a first side 12, and a second side 13. The first side 12 and the second side 13 can be connected to opposite sides of the bottom 11. The first side 12 and the second side 13 can be arranged along a third direction Y.
[0152] Exemplarily, the first side portion 12 can include a first support plate 121 and a second support plate 122 arranged in the first direction X. The first support plate 121 and the second support plate 122 can be spaced apart.
[0153] The first support plate 121 can have a first mounting portion 1211 protruding towards the second side portion 13, and the first mounting portion 1211 can be connected to the bottom portion 11.
[0154] The second support plate 122 can have a second mounting portion 1221 protruding towards the second side portion 13, and the second mounting portion 1221 can be connected to the bottom portion 11.
[0155] The second mounting portion 1221 and the first mounting portion 1211 can be arranged in opposition. The arrangement in opposition means that, along the first direction X, the orthogonal projection of the first mounting portion 1211 on the second support plate 122 at least partially coincides with the second mounting portion 1221.
[0156] Exemplarily, the second side portion 13 can include a third support plate 131, a connecting plate 132 and a fourth support plate 133 arranged in the first direction X. The connecting plate 132 can be connected between the third support plate 131 and the fourth support plate 133.
[0157] The third support plate 131 can have a third mounting portion 1311 protruding towards the first side portion 12, and the third mounting portion 1311 can be connected to the bottom portion 11.
[0158] The fourth support plate 133 can have a fourth mounting portion 1331 protruding towards the first side portion 12, and the fourth mounting portion 1331 can be connected to the bottom portion 11.
[0159] The fourth mounting portion 1331 and the third mounting portion 1311 can be arranged in opposition. The arrangement in opposition means that, along the first direction X, the orthogonal projection of the third mounting portion 1311 on the fourth support plate 133 at least partially coincides with the fourth mounting portion 1331.
[0160] Exemplarily, the bottom portion 11 can expose the first side portion 12 in the third direction Y, i.e. in the third direction Y, the length of the bottom portion 11 is greater than the maximum distance between the first side portion 12 and the second side portion 13, and part of the bottom portion 11 extends out of the first side portion 12.
[0161] Please refer to FIG. 6 and FIG. 7, FIG. 6 is a structural schematic diagram of the mounting portion of the base 1 shown in FIG. 5A in some embodiments; and FIG. 7 is a partial structural exploded schematic diagram of the structure shown in FIG. 6 in some embodiments.
[0162] In some embodiments, the first connecting member 4a and the second connecting member 4b can be spaced apart, the first connecting member 4a can be connected to the first side portion 12, and the second connecting member 4b can be connected to the second side portion 13.
[0163] For example, the first connecting member 4a can be connected between the first mounting portion 1211 and the second mounting portion 1221, and the second connecting member 4b can be connected between the third mounting portion 1311 and the fourth mounting portion 1331. In this embodiment, the first mounting portion 1211 and the second mounting portion 1221 are designed to facilitate the installation of the first connecting member 4a, and the third mounting portion 1311 and the fourth mounting portion 1331 are designed to facilitate the installation of the second connecting member 4b.
[0164] For example, the first connecting member 4a can be a sliding shaft, and the second connecting member 4b can also be a sliding shaft.
[0165] In some embodiments, the first circuit board 5 can be mounted on the bottom portion 11, and the tunneling magnetoresistance sensor 62 can be mounted on the first circuit board 5, so that the first circuit board 5 can supply power to the tunneling magnetoresistance sensor 62.
[0166] For example, the first circuit board 5 can be partially mounted between the first support plate 121 and the second support plate 122, and a portion of the first circuit board 5 can extend away from the second side portion 13 relative to the first side portion 12 along the third direction Y.
[0167] For example, a side edge of the first circuit board 5 away from the second side portion 13 can be flush with a side edge of the bottom portion 11 away from the second side portion 13.
[0168] In some embodiments, the first coil 311 and the second coil 312 can be arranged along the first direction X, and the first coil 311 and the second coil 312 can be mounted on the first side portion 12.
[0169] For example, the first coil 311 and the second coil 312 can be mounted between the first support plate 121 and the second support plate 122.
[0170] For example, the first coil 311 and the second coil 312 can be electrically connected to the first circuit board 5, so that the first circuit board 5 can supply power to the first coil 311 and the second coil 312.
[0171] Please refer to FIG. 6, FIG. 8A and FIG. 8B, FIG. 8A is a structural schematic diagram of the base 1 shown in FIG. 5A in some embodiments, which is installed with the drive coil 31; and FIG. 8B is a structural schematic diagram of the base 1 shown in FIG. 5A in some other embodiments, which is installed with the drive coil 31.
[0172] In some embodiments, the motor 20 can further include a second circuit board 15, and the first coil 311 and the second coil 312 can be mounted on the second circuit board 15, and the second circuit board 15 can be fixed to the first side 12 to achieve fixed mounting of the first coil 311 and the second coil 312.
[0173] In other embodiments, the first coil 311 and the second coil 312 can be at least partially embedded in the first side 12 to achieve fixed mounting of the first coil 311 and the second coil 312. In this case, the first coil 311 and the second coil 312 can be formed in an integral structure with the first side 12 by injection molding to improve the mounting stability of the first coil 311 and the second coil 312.
[0174] Please refer to FIGS. 9A-10, FIG. 9A is a structural schematic diagram of the carrier 2 in the motor 20 shown in FIG. 3 in some embodiments; FIG. 9B is a structural schematic diagram of the carrier 2 shown in FIG. 9A from another perspective; and FIG. 10 is a structural schematic diagram of the carrier 2 shown in FIG. 9A along the line B-B in some embodiments.
[0175] In some embodiments, the carrier 2 can include a first carrier portion 21, a second carrier portion 22, a third carrier portion 23, and a fourth carrier portion 24 connected end to end in sequence. The first carrier portion 21 and the third carrier portion 23 can be arranged in the third direction Y, and the second carrier portion 22 and the fourth carrier portion 24 can be arranged in the second direction Z. The first carrier portion 21, the second carrier portion 22, the third carrier portion 23, and the fourth carrier portion 24 can be arranged to form a containing space 25, and the containing space 25 can be used to mount at least part of the lenses in the lens 40 described above.
[0176] For example, the surface of the first carrier portion 21 facing away from the second carrier portion 22 can be provided with a first containing groove 211, and the opening of the first containing groove 211 can face away from the second carrier portion 22.
[0177] For example, the surface of the first carrier portion 21 facing away from the fourth carrier portion 24 can be provided with a second containing groove 212, and the opening of the second containing groove 212 can face away from the fourth carrier portion 24.
[0178] In some embodiments, the carrier 2 can be provided with a first sliding groove 26 and a second sliding groove 27 on one side close to the second carrier portion 22.
[0179] In some examples, the second carrier portion 22 can be provided with the first sliding groove 26. In other examples, the first carrier portion 21 can be provided with the first sliding groove 26. In yet other examples, the first carrier portion 21 and the second carrier portion 22 can be arranged to form the first sliding groove 26. In this case, the opening of the first sliding groove 26 can face away from the fourth carrier portion 24.
[0180] In some examples, the second carrier portion 22 can be provided with a second chute 27. In other examples, the third carrier portion 23 can be provided with the second chute 27. In yet other examples, the second carrier portion 22 and the third carrier portion 23 can enclose the second chute 27. In this case, the opening of the second chute 27 can face away from the fourth carrier portion 24.
[0181] In this case, the extending directions of the first chute 26 and the second chute 27 can be parallel to the first direction X.
[0182] In some examples, the first chute 26 can be a U-shaped chute or an L-shaped chute, and the second chute 27 can be a V-shaped chute.
[0183] In other examples, the first chute 26 can be a V-shaped chute, and the second chute 27 can be a U-shaped chute or an L-shaped chute.
[0184] In yet other examples, the first chute 26 and the second chute 27 can have other shapes, and the shapes of the first chute 26 and the second chute 27 can be the same or different, which are not limited herein.
[0185] In some examples, the carrier 2 can have a first reinforcing plate 28 and a second reinforcing plate 29. In this case, the first reinforcing plate 28 can be embedded in the second carrier portion 22 to improve the structural strength of the second carrier portion 22. The second reinforcing plate 29 can be embedded in the fourth carrier portion 24 to improve the structural strength of the fourth carrier portion 24.
[0186] In some examples, the two surfaces of the first carrier portion 21 facing away from each other along the first direction X can be respectively provided with a first buffer 16a and a second buffer 16b. The two surfaces of the third carrier portion 23 facing away from each other along the first direction X can be respectively provided with a third buffer 16c and a fourth buffer 16d.
[0187] Please refer to FIGS. 11A-13. FIG. 11A is a schematic diagram of a partial structure of the mounting portion of the carrier 2 shown in FIG. 9A in some examples. FIG. 11B is a schematic diagram of the structure shown in FIG. 11A from another perspective. FIG. 12 is a schematic diagram of an exploded view of the structure shown in FIG. 11A in some examples. FIG. 13 is a schematic diagram of the structure shown in FIG. 11A along the line C-C in some examples.
[0188] In some examples, the first magnetic member 321 and the second magnetic member 322 can be mounted on one side of the carrier 2.
[0189] Exemplarily, the magnetic conductive plate 9 can be installed in the first accommodating groove 211, and the first magnetic member 321 and the second magnetic member 322 can be both installed in the first accommodating groove 211 and wrapped by the magnetic conductive plate 9. In this embodiment, by installing the first magnetic member 321 and the second magnetic member 322 in the first accommodating groove 211, the installation stability of the first magnetic member 321 and the second magnetic member 322 can be improved, and the space occupied by the first magnetic member 321 and the second magnetic member 322 can be reduced, thereby facilitating the miniaturization design of the motor 20.
[0190] In this embodiment, the magnetic conductive plate 9 can have a C-shaped structure, so that the magnetic conductive plate 9 can wrap the first magnetic member 321 and the second magnetic member 322, thereby improving the installation stability of the first magnetic member 321 and the second magnetic member 322.
[0191] In some embodiments, the magnetic grid 61 can be installed on the carrier 2. In this embodiment, the magnetic grid 61 can be installed on the first carrier portion 21 and extend along the first direction X.
[0192] Exemplarily, the magnetic grid 61 can be installed in the second accommodating groove 212, which can improve the installation stability of the magnetic grid 61 and reduce the space occupied by the magnetic grid 61, thereby facilitating the miniaturization design of the motor 20.
[0193] In this embodiment, the second shielding plate 8 can include a first sub-plate 81 and a second sub-plate 82, and the first sub-plate 81 and the second sub-plate 82 are connected in an L shape. The second shielding plate 8 can be installed in the second accommodating groove 212, and the magnetic grid 61 can be installed on the second shielding plate 8. The first sub-plate 81 can be located between the magnetic grid 61 and the first magnetic member 321 and the second magnetic member 322, so as to reduce the magnetic field interference between the magnetic grid 61 and the first magnetic member 321 and the second magnetic member 322.
[0194] In this embodiment, the second sub-plate 82 can be located on the side of the magnetic grid 61 away from the third carrier portion 23, so as to shield the magnetic field of the first magnetic member 321 and the second magnetic member 322, thereby reducing the magnetic field interference of the first magnetic member 321 and the second magnetic member 322 on the magnetic grid 61.
[0195] Please refer to FIGS. 14-16. FIG. 14 is a structural schematic diagram of the structure shown in FIG. 11A installed in the structure shown in FIG. 6 in some embodiments; FIG. 15 is a partial structural exploded schematic diagram of the structure shown in FIG. 14 in some embodiments; and FIG. 16 is a structural schematic diagram of the structure shown in FIG. 14 along the line D-D in some embodiments.
[0196] In some embodiments, the carrier 2 can be mounted on the base 1. In this case, at least part of the first carrier portion 21 can be located between the first support plate 121 and the second support plate 122, the second carrier portion 22 can be closer to the bottom 11 than the fourth carrier portion 24, and at least part of the third carrier portion 23 can be located between the third support plate 131 and the fourth support plate 133.
[0197] In this embodiment, by mounting at least part of the first carrier portion 21 between the first support plate 121 and the second support plate 122 and mounting at least part of the third carrier portion 23 between the third support plate 131 and the fourth support plate 133, the additional occupied space of the carrier 2 is reduced, the space utilization is improved, and the miniaturization design of the motor 20 is facilitated.
[0198] In some embodiments, the first connecting member 4a and the second connecting member 4b can be used to connect the carrier 2 and the base 1. In this case, the first connecting member 4a can be mounted in the first sliding groove 26, and the second connecting member 4b can be mounted in the second sliding groove 27. The first connecting member 4a and the second connecting member 4b can be sliding shafts.
[0199] In this embodiment, by setting the first connecting member 4a and the second connecting member 4b as sliding shafts and respectively setting them in the first sliding groove 26 and the second sliding groove 27, the stability of the movement of the carrier 2 relative to the base 1 in the first direction X is improved, and thus the quality of the optical zoom / focus of the camera module 100 is improved.
[0200] In this embodiment, since one of the first sliding groove 26 and the second sliding groove 27 can be a U-shaped groove or an L-shaped groove, and the other can be a V-shaped groove, the stability of the matching connection of the first sliding shaft and the second sliding shaft with the carrier 2 is improved, the stability of the mounting of the carrier 2 on the base 1 is improved, the stability of the movement of the carrier 2 relative to the base 1 in the first direction X is improved, and thus the quality of the optical zoom / focus of the camera module 100 is improved.
[0201] In this embodiment, since the tunnel magnetoresistance sensor 62 and the magnetic grid 61 are mounted and arranged in this way, during the movement of the carrier 2 relative to the base 1 in the first direction X, the tunnel magnetoresistance sensor 62 can detect the position of the tunnel magnetoresistance sensor 62 relative to the magnetic grid 61 by sensing the magnetic field change of the magnetic grid 61, thereby detecting the position of the carrier 2 relative to the base 1, improving the position detection accuracy of the carrier 2, and improving the quality of the optical zoom / focus of the camera module 100. For example, by the cooperation of the tunnel magnetoresistance sensor 62 and the magnetic grid 61, the position detection accuracy can be improved to 3 pm, or 2 pm, or 1 pm, etc.
[0202] In addition, since the magnetic grid 61 is mounted on the first carrier portion 21, the tunnel magnetoresistance sensor 62 and the circuit board are both arranged close to the magnetic grid 61, so that the tunnel magnetoresistance sensor 62, the magnetic grid 61, the driving magnet 32 and the driving coil 31 are concentrated near the first side portion 12 of the carrier 2, thereby enabling the tunnel magnetoresistance sensor 62 and the magnetic grid 61 to be away from external magnetic interference sources on the side of the second side portion 13 opposite to the first side portion 12 of the motor 20, which is conducive to reducing the risk of magnetic interference on the tunnel magnetoresistance sensor 62 and the magnetic grid 61.
[0203] In other embodiments, the first connecting member 4a can also be a ball, or a spring leaf, or a suspension wire, and the second connecting member 4b can also be a ball, or a spring leaf, or a suspension wire, etc. It should be noted that when the first connecting member 4a and the second connecting member 4b are spring leaves or suspension wires, the first sliding groove 26 and the second sliding groove 27 of the carrier 2 are no longer needed, and the spring leaves or suspension wires not only play the role of guiding the movement of the carrier 2, but also limit the movement stroke of the carrier 2 through the elasticity of the spring leaves or suspension wires.
[0204] In some embodiments, the second sub-plate 82 of the second shielding plate 8 can be located between the magnetic grid 61 and the driving coil 31, so that the second sub-plate 82 can separate the magnetic grid 61 and the driving coil 31, reduce the magnetic field interference between the driving coil 31 and the magnetic grid 61 after the driving coil 31 is powered on, and is conducive to improving the stability of the position detection of the position detection assembly 6.
[0205] Please refer to FIGS. 9A, 9B and 14, in the present embodiment, since the two surfaces of the first carrier portion 21 opposite to each other along the first direction X can be respectively provided with the first buffer member 16a and the second buffer member 16b, and the two surfaces of the third carrier portion 23 opposite to each other along the first direction X can be respectively provided with the third buffer member 16c and the fourth buffer member 16d, so that during the movement of the carrier 2 relative to the base 1 along the first direction X, the first buffer member 16a can play a role of collision buffering between the first carrier portion 21 and the first support plate 121, the second buffer member 16b can play a role of collision buffering between the first carrier portion 21 and the second support plate 122, the third buffer member 16c can play a role of collision buffering between the third carrier portion 23 and the third support plate 131, and the fourth buffer member 16d can play a role of collision buffering between the third carrier portion 23 and the fourth support plate 133, thereby reducing the risk of collision damage between the carrier 2 and the base 1, and being conducive to improving the service life of the motor 20.
[0206] In some embodiments, the first buffer 16a can be arranged on the surface of the first support plate 121 facing the first carrier 21, the second buffer 16b can be arranged on the surface of the second support plate 122 facing the first carrier 21, the third buffer 16c can be arranged on the surface of the third support plate 131 facing the third carrier 23, and the fourth buffer 16d can be arranged on the surface of the fourth support plate 133 facing the third carrier 23.
[0207] In some other embodiments, the number of the first buffer 16a, the second buffer 16b, the third buffer 16c and the fourth buffer 16d can be two. Specifically, one first buffer 16a is arranged on the surface of the first carrier 21 facing the first support plate 121, and the other first buffer 16a is arranged on the surface of the first support plate 121 facing the first carrier 21; one second buffer 16b is arranged on the surface of the first carrier 21 facing the second support plate 122, and the other second buffer 16b is arranged on the surface of the second support plate 122 facing the first carrier 21; one third buffer 16c is arranged on the surface of the third carrier 23 facing the third support plate 131, and the other third buffer 16c is arranged on the surface of the third support plate 131 facing the third carrier 23; one fourth buffer 16d is arranged on the surface of the second carrier 22 facing the fourth support plate 133, and the other fourth buffer 16d is arranged on the surface of the fourth support plate 133 facing the third carrier 23.
[0208] Please refer to FIG. 16 to FIG. 17B, FIG. 17A is a schematic diagram of the structure of the driving magnet 32 and the driving coil 31 in some embodiments of the structure shown in FIG. 14; FIG. 17B is a schematic diagram of the structure shown in FIG. 17A from another perspective.
[0209] In some embodiments, the first magnetic member 321 can be arranged opposite to the first coil 311, and the second magnetic member 322 can be arranged opposite to the second coil 312, which is conducive to the generation of Lorentz force, thereby facilitating the movement of the carrier 2 relative to the base 1.
[0210] For example, the first magnetic member 321 and the second magnetic member 322 can both be Halbach magnets. The first magnetic member 321 includes a first magnet 3211 and a second magnet 3212 arranged in the first direction X, and both the first magnet 3211 and the second magnet 3212 have a magnetic pole surface facing the first coil 311, and the polarity direction of the first magnet 3211 is opposite to that of the second magnet 3212. The second magnetic member 322 includes a third magnet 3221 and a fourth magnet 3222 arranged in the first direction X, and the polarity direction of the third magnet 3221 is opposite to that of the first magnet 3211, and the polarity direction of the fourth magnet 3222 is opposite to that of the second magnet 3212.
[0211] It should be noted that the polarity direction refers to the direction in which one magnetic pole surface of a magnet points to another magnetic pole surface. Specifically, in the interior of a magnet, the direction in which the S pole points to the N pole is the polarity direction of the magnet.
[0212] In this embodiment, since the first magnetic member 321 and the second magnetic member 322 are both Halbach magnets, the first magnetic member 321 and the second magnetic member 322 can generate a stronger magnetic field under the same size, thereby improving the Lorentz force generated under the action of the driving magnet 32 and the driving coil 31, and further improving the driving force of the driving coil 31 to drive the carrier 2 relative to the base 1, which is beneficial to make up for the problem of insufficient power of the single-sided driving motor 20. For example, the driving force can be increased to more than 50 mN by using a Halbach magnet.
[0213] In addition, by controlling the current direction of the first coil 311 and the second coil 312 to be opposite, the force (see F21 in FIG. 17B) generated by the first coil 311 and acting on the first magnetic member 321 due to the magnetic effect of the current and the force (see F22 in FIG. 17B) generated by the second coil 312 and acting on the second magnetic member 322 are opposite in direction, thereby reducing or even eliminating the pushing force or the attracting force of the driving coil 31 on the driving magnet 32, thereby reducing or even avoiding the risk of the carrier 2 being overturned caused by the driving coil 31. Since the Halbach magnet has a magnet arrangement characteristic, when the current direction of the first coil 311 and the second coil 312 is opposite, the first coil 311 and the first magnetic member 321 can generate a Lorentz force parallel to the first direction X, and since the first coil 311 is fixed to the base 1, the first magnetic member 321 will be subjected to an action force in the opposite direction (see F11 in FIG. 17B). The second coil 312 and the second magnetic member 322 can generate a Lorentz force parallel to the first direction X, and since the second coil 312 is fixed to the base 1, the second magnetic member 322 will be subjected to an action force in the opposite direction (see F12 in FIG. 17B), and the directions of F11 and F12 are the same.
[0214] For example, the first coil 311 includes a first long side 3111, a first short side 3112, a second long side 3113, and a second short side 3114 connected end to end in sequence, the first long side 3111 is arranged opposite to the first magnet 3211, and the second long side 3113 is arranged opposite to the second magnet 3212. The second coil 312 includes a third long side 3121, a third short side 3122, a fourth long side 3123, and a fourth short side 3124 connected end to end in sequence, the third long side 3121 is arranged opposite to the third magnet 3221, and the fourth long side 3123 is arranged opposite to the fourth magnet 3222.
[0215] In the present embodiment, by setting the first long side 3111 opposite to the first magnet 3211 and the second long side 3113 opposite to the second magnet 3212, the magnetic field interaction effect of the first coil 311 with the first magnetic member 321 after the first coil 311 is energized can be improved, so as to increase the size of the Lorentz force, thereby increasing the driving force on the first magnetic member 321. By setting the third long side 3121 opposite to the third magnet 3221 and the fourth long side 3123 opposite to the fourth magnet 3222, the magnetic field interaction effect of the second coil 312 with the second magnetic member 322 after the second coil 312 is energized can be improved, so as to increase the size of the Lorentz force, thereby increasing the driving force on the second magnetic member 322.
[0216] Specifically, taking the current and polarity annotations in FIGS. 17A and 17B as examples. The dashed line with an arrow in FIG. 17A represents the current direction, and the dashed line with an arrow in FIG. 17B represents the force. The pole face of the first magnet 3211 facing the first long side 3111 of the first coil 311 is an S pole, which can generate a Lorentz force opposite to the direction of F11 in cooperation with the first coil 311. The pole face of the second magnet 3212 facing the second long side 3113 of the first coil 311 is an N pole, which can generate a Lorentz force opposite to the direction of F11 in cooperation with the first coil 311, so that the interaction between the first coil 311 and the first magnetic member 321 can generate a force F11 to drive the first magnetic member 321. The pole face of the third magnet 3221 facing the third long side 3121 of the second coil 312 is an N pole, which can generate a Lorentz force opposite to the direction of F12 in cooperation with the second coil 312. The pole face of the fourth magnet 3222 facing the fourth long side 3123 of the second coil 312 is an S pole, which can generate a Lorentz force opposite to the direction of F12 in cooperation with the second coil 312, so that the interaction between the second coil 312 and the second magnetic member 322 can generate a force F12 to drive the second magnetic member 322. In this way, the driving coil 31 can drive the magnet 32 to drive the carrier 2 to move relative to the base 1 along the DO direction (see FIG. 16).
[0217] In other embodiments, the first coil 311 and the second coil 312 can be directly printed on a flexible printed circuit board (Flexible Printed Circuit) to achieve a smaller size design, which is conducive to the miniaturization design of the motor 20.
[0218] It should be noted that the motor 20 can include the first coil 311 and the second coil 312, as shown in FIGS. 16-17B. It can be understood that in some other embodiments, the motor 20 can further include more coils, for example, a third coil, a fourth coil, etc., which are not limited herein. In some embodiments, the number of coils and magnetic pieces can be the same, and then the plurality of coils arranged along the first direction X sequentially change the current direction, and the corresponding magnetic pieces are designed as magnetic poles to make the direction of the Lorentz force generated by the interaction between each coil and the corresponding magnetic piece consistent. In some other embodiments, the number of coils and magnetic pieces can be different, and one magnetic piece can correspond to a plurality of coils with the same current direction. For example, the motor 20 can include the first coil 311, the second coil 312, and the third coil. The sizes of the second coil 312 and the third coil are smaller than that of the first coil 311. The current directions of the second coil 312 and the third coil are the same, and the current direction of the second coil 312 is opposite to that of the first coil 311. The second coil 312 and the third coil are arranged along the second direction Z, and the second coil 312 and the first coil 311 are arranged along the first direction X. The first coil 311 is arranged opposite to the first magnetic piece 321, and the second coil 312 and the third coil are arranged opposite to the second magnetic piece 322.
[0219] It should be noted that in the embodiments of the present application, the number of the first magnetic piece 321 and the second magnetic piece 322 is not limited, and it can be understood that in some other embodiments, the number of the first magnetic piece 321 and the second magnetic piece 322 can be other numbers, as long as the magnetic pieces can cooperate with the coils to drive the carrier 2 and weaken or even eliminate the magnetic force of the coils on the magnetic pieces due to the magnetic effect of the current.
[0220] For example, the first magnetic piece 321 includes the first magnetic piece 3211, the fifth magnetic piece 3213, and the second magnetic piece 3212 arranged along the first direction X. The polarity direction of the fifth magnetic piece 3213 is different from the polarity direction of the first magnetic piece 3211 and the polarity direction of the second magnetic piece 3212. The second magnetic piece 322 includes the third magnetic piece 3221, the sixth magnetic piece 3223, and the fourth magnetic piece 3222 arranged along the first direction X. The polarity direction of the sixth magnetic piece 3223 is different from the polarity direction of the third magnetic piece 3221 and the polarity direction of the fourth magnetic piece 3222.
[0221] In the embodiment, in the first magnetic member 321, the fifth magnet 3213 is designed to guide the magnetic field of the first magnet 3211 and the second magnet 3212, which is conducive to enhancing the magnetic field of the first magnetic member 321 acting on the first coil 311. In the second magnetic member 322, the sixth magnet 3223 is designed to guide the magnetic field of the third magnet 3221 and the fourth magnet 3222, which is conducive to enhancing the magnetic field of the second magnetic member 322 acting on the second coil 312.
[0222] In some embodiments, the first magnetic member 321 and the second magnetic member 322 can be a split structure, so that the combination of the first magnetic member 321 and the second magnetic member 322 is more flexible.
[0223] In other embodiments, the first magnetic member 321 and the second magnetic member 322 can be an integrated structure, which is conducive to the installation of the first magnetic member 321 and the second magnetic member 322. Wherein, the first magnetic member 321 and the second magnetic member 322 can be but not limited to an integrated structure by means of bonding, welding and the like.
[0224] In some embodiments, the second magnet 3212 and the third magnet 3221 can be a split structure, which is conducive to flexible arrangement of the second magnet 3212 and the third magnet 3221.
[0225] In other embodiments, the second magnet 3212 and the third magnet 3221 can be an integrated structure.
[0226] In the embodiment, since the polarity direction of the second magnet 3212 and the polarity direction of the third magnet 3221 are the same, by designing the second magnet 3212 and the third magnet 3221 as an integrated structure, it is conducive to avoiding the repulsive force between the second magnet 3212 and the third magnet 3221, thereby facilitating installation.
[0227] Wherein, the second magnet 3212 and the third magnet 3221 can be but not limited to an integrated structure by means of bonding, welding and the like, or the second magnet 3212 and the third magnet 3221 are a whole magnet, wherein part is the second magnet 3212 and the other part is the third magnet 3221.
[0228] It should be noted that the camera module 100 in the embodiments of the present application is shown by way of example with the driving magnets 32 and the driving coils 31 installed on one side of the carrier 2 close to the first side 12. In some other embodiments, the number of driving magnets 32 and driving coils 31 can be two, one of which is installed on one side of the carrier 2 close to the first side 12, and the other is installed on one side of the carrier 2 close to the second side 13. In the present embodiment, the driving magnets 32 and the driving coils 31 are designed to be installed on both sides, so that the force of the driving coils 31 acting on the driving magnets 32 due to the magnetic effect of the current can be balanced on both sides of the carrier 2, improving the balance of both sides of the carrier 2, thereby improving the overall balance of the carrier 2, and facilitating the improvement of the optical zoom / focus quality of the camera module 100.
[0229] It can be understood that, in order to reduce or even eliminate the influence of external magnetic interference on the driving of the driving magnets 32 and the driving coils 31, a single-sided driving motor 20 design can be used, i.e., the driving magnets 32 and the driving coils 31 are installed on only one side of the carrier 2, for example, on one side of the carrier 2 close to the first side 12 in the present embodiment. If the external magnetic interference is small, a double-sided driving motor 20 design can be used, i.e., one driving magnet 32 and one driving coil 31 are arranged on opposite sides of the carrier 2, for example, in the scenario shown in FIG. 2B, the side camera module 600 can use the above-mentioned design of the driving magnets 32 and the driving coils 31 and be installed on both sides to improve the driving balance.
[0230] Please refer to FIG. 18, which is a schematic diagram of the structure of the driving magnets 32 and the driving coils 31 in some other embodiments in the structure shown in FIG. 14. It should be noted that the driving assembly 3 shown in FIG. 18 can include some features of the driving assembly 3 shown in FIGS. 17A and 17B, and the same features will not be described here.
[0231] In some embodiments, the first magnet 3211 can have a first magnetization direction and a first polarization direction, and the first magnetization direction and the first polarization direction are arranged at a non-90° angle. The second magnet 3212 can have a second magnetization direction and a second polarization direction, and the second magnetization direction and the second polarization direction are arranged at a non-90° angle. The component of the first magnetization direction in the first direction X and the component of the second magnetization direction in the first direction X have the same direction.
[0232] It should be noted that the magnetization direction of the magnet is the direction of the internal magnetic force line of the magnet. By using a slanting magnetization method for the magnet, the magnetization direction of the magnet can be made not perpendicular to the magnetic pole surface. In the drawings of the present application, the magnetization direction of the magnet is represented by a dashed line with an arrow.
[0233] In the embodiment, the first magnetization direction of the first magnet 3211 deviates from the center of the first magnetic piece 321, so that the magnetic force lines from the N-pole surface of the first magnet 3211 to the S-pole surface of the second magnet 3212 are pressed towards the center of the first magnetic piece 321, thereby increasing the magnetic flux density on the side of the first magnetic piece 321, and further increasing the magnetic flux density perpendicular to the first coil 311. When the first coil 311 is energized, a greater Lorentz force can be generated in the first coil 311 by the action of the first magnetic piece 321, which is conducive to providing a stronger driving force.
[0234] In some embodiments, the third magnet 3221 can have a third magnetization direction and a third polarity direction, the third magnetization direction and the third polarity direction are arranged at a non-90° angle, the fourth magnet 3222 can have a fourth magnetization direction and a fourth polarity direction, the fourth magnetization direction and the fourth polarity direction are arranged at a non-90° angle, and the directions of the components of the third magnetization direction and the fourth magnetization direction in the first direction are the same.
[0235] In the embodiment, the third magnetization direction of the fourth magnet 3222 deviates from the center of the second magnetic piece 322, so that the magnetic force lines from the N-pole surface of the fourth magnet 3222 to the S-pole surface of the third magnet 3221 are pressed towards the center of the second magnetic piece 322, thereby increasing the magnetic flux density on the side of the second magnetic piece 322, and further increasing the magnetic flux density perpendicular to the second coil 312. When the second coil 312 is energized, a greater Lorentz force can be generated in the second coil 312 by the action of the second magnetic piece 322, which is conducive to providing a stronger driving force.
[0236] It should be noted that in some embodiments, the first magnetic piece 321 and the second magnetic piece 322 shown in FIG. 18 can only include two magnets, and in other embodiments, the first magnetic piece 321 and the second magnetic piece 322 can also include a larger number of magnets. For details, please refer to FIGS. 19A and 19B.
[0237] Please refer to FIGS. 19A and 19B, FIG. 19A is a schematic structural view of the driving magnet 32 and the driving coil 31 in some other embodiments of the structure shown in FIG. 14; and FIG. 19B is a schematic structural view of the driving magnet 32 and the driving coil 31 in some other embodiments of the structure shown in FIG. 14. It should be noted that the driving assembly 3 shown in FIGS. 19A and 19B can include some features of the driving assembly 3 shown in FIG. 18, and the same features will not be described here.
[0238] In some embodiments, the first magnetic component 321 can further include a fifth magnet 3213 and a seventh magnet 3214, both of which are located between the first magnet 3211 and the second magnet 3212, the fifth magnet 3213 is closer to the first magnet 3211 relative to the seventh magnet 3214, the polarity direction of the fifth magnet 3213 is the same as that of the first magnet 3211, and the polarity direction of the seventh magnet 3214 is the same as that of the second magnet 3212.
[0239] In the present embodiment, by increasing the number of magnets, the magnetic field strength of the first magnetic component 321 can be enhanced, thereby improving the Lorentz force generated by the first magnetic component 321 and the first coil 311 acting together, and thus improving the driving force of the driving assembly 3.
[0240] For example, the fifth magnet 3213 can have a fifth magnetization direction and a fifth polarization direction, the fifth magnetization direction is arranged at a non-90° angle with the fifth polarization direction, and / or the seventh magnet 3214 has a seventh magnetization direction and a seventh polarization direction, the seventh magnetization direction is arranged at a non-90° angle with the seventh polarization direction.
[0241] In the present embodiment, the N-pole surface of the fifth magnet 3213 is oriented in the same direction as the N-pole surface of the first magnet 3211, so that the fifth magnet 3213 can jointly provide a magnetic field perpendicular to the first coil 311 with the first magnet 3211, and the fifth magnet 3213 can enhance the compression effect of the magnetic force lines of the first magnet 3211, thereby further improving the magnetic flux density of the first magnetic component 321 on the side of the first coil 311, and thus improving the Lorentz force generated by the first magnetic component 321 and the first coil 311 acting together. Similarly, the seventh magnet 3214 and the second magnet 3212 can also improve the Lorentz force generated by the first magnetic component 321 and the first coil 311 acting together.
[0242] It should be noted that in the present embodiment, the component of the first magnetization direction in the first direction can be opposite to the component of the fifth magnetization direction in the first direction, and the component of the second magnetization direction in the first direction can be opposite to the component of the seventh magnetization direction in the first direction. In other embodiments, the component of the first magnetization direction in the first direction can be the same as the component of the fifth magnetization direction in the first direction, and the component of the second magnetization direction in the first direction can be the same as the component of the seventh magnetization direction in the first direction.
[0243] In some embodiments, the second magnetic component 322 can further include a sixth magnet 3223 and an eighth magnet 3224, both of which are located between the third magnet 3221 and the fourth magnet 3222, the sixth magnet 3223 is closer to the third magnet 3221 relative to the eighth magnet 3224, the polarity direction of the sixth magnet 3223 is the same as that of the third magnet 3221, and the polarity direction of the eighth magnet 3224 is the same as that of the fourth magnet 3222.
[0244] In the present embodiment, by increasing the number of magnets, the magnetic field strength of the second magnetic component 322 can be enhanced, thereby improving the Lorentz force generated by the interaction between the second magnetic component 322 and the second coil 312, and thus improving the driving force of the driving assembly 3.
[0245] For example, the sixth magnet 3223 has a sixth magnetization direction and a sixth polarity direction, and the sixth magnetization direction is arranged at a non-90° angle with the sixth polarity direction, and / or the eighth magnet 3224 has an eighth magnetization direction and an eighth polarity direction, and the eighth magnetization direction is arranged at a non-90° angle with the eighth polarity direction.
[0246] In the present embodiment, the S-pole surface of the sixth magnet 3223 is oriented in the same direction as the S-pole surface of the third magnet 3221, so that the sixth magnet 3223 can jointly provide a magnetic field perpendicular to the first coil 311 with the third magnet 3221, and the sixth magnet 3223 can enhance the compression effect of the magnetic lines of force of the third magnet 3221, thereby further improving the magnetic flux density of the second magnetic component 322 on the side of the second coil 312, and thus improving the Lorentz force generated by the interaction between the second magnetic component 322 and the second coil 312. Similarly, the eighth magnet 3224 and the fourth magnet 3222 can also improve the Lorentz force generated by the interaction between the second magnetic component 322 and the second coil 312.
[0247] It should be noted that in the present embodiment, the component of the third magnetization direction in the first direction can be opposite to the component of the sixth magnetization direction in the first direction, and the component of the fourth magnetization direction in the first direction can be opposite to the component of the eighth magnetization direction in the first direction. In other embodiments, the component of the third magnetization direction in the first direction can be the same as the component of the sixth magnetization direction in the first direction, and the component of the fourth magnetization direction in the first direction can be the same as the component of the eighth magnetization direction in the first direction.
[0248] It should be noted that in the first magnetic component 321 and the second magnetic component 322, the angle between the magnetic lines of force and the polarity direction of the magnets can be the same (see FIG. 19A) or can be different (see FIG. 19B), which is not limited herein.
[0249] Please refer to FIG. 20 and FIG. 21, FIG. 20 is a schematic diagram of the structure shown in FIG. 14 along line D-D in another embodiment; FIG. 21 is a schematic diagram of the structure shown in FIG. 14 along line D-D in yet another embodiment.
[0250] In some embodiments, the motor 20 can further comprise a balancing assembly 17, which can be connected between the third carrier 23 and the bottom 11, and can be used to generate a force acting between the third carrier 23 and the bottom 11 in the opposite direction.
[0251] In the present embodiment, since the first carrier 21 of the carrier 2 is provided with the first magnetic member 321 and the second magnetic member 322, and the third carrier 23 of the carrier 2 is not provided with a magnetic member, so that the load of the first carrier 21 is greater than the load of the third carrier 23, which can cause balance interference to the movement of the carrier 2. By designing the balancing assembly 17, which can act between the third carrier 23 and the bottom 11 to generate a force in the opposite direction between the third carrier 23 and the bottom 11, so as to pull the third carrier 23 towards the bottom 11, which is equivalent to increasing the load of the third carrier 23, thereby balancing the loads of the first carrier 21 and the third carrier 23. At this time, the pressure between the first carrier 21 and the first connecting member 4a and the pressure between the third carrier 23 and the second connecting member 4b can be close or even the same, thereby balancing the frictional force on the side of the first carrier 21 and the frictional force on the side of the third carrier 23 during the movement of the carrier 2, which is beneficial to improve the balance of the movement of the carrier 2.
[0252] For example, the balancing assembly 17 can generate a force acting on the third carrier 23 in the direction of the bottom 11, or the balancing assembly 17 can be used to generate a force acting on the bottom 11 in the direction of the third carrier 23, or the balancing assembly 17 can generate a force acting on the third carrier 23 in the direction of the bottom 11 and be used to generate a force acting on the bottom 11 in the direction of the third carrier 23.
[0253] In some examples (see FIG. 20), the balancing assembly 17 can comprise an elastic member 171. The elastic member 171 can be connected between the third carrier 23 and the bottom 11, and the elastic member 171 is in a stretched state.
[0254] In the embodiment, the elastic member 171 is in a stretched state, so that the elastic member 171 can act on the third load portion 23 and the bottom portion 11 through the elastic restoring force, to generate a force between the third load portion 23 and the bottom portion 11, to pull the third load portion 23 towards the bottom portion 11, so as to balance the load of the first load portion 21 and the third load portion 23. In this embodiment, the elastic member 171 can be deformed in various directions, so that when the carrier 2 moves relative to the base 1, the elastic member 171 can be pulled in the first direction X, without interfering with the movement of the carrier 2, and the elastic member 171 can also limit the movement of the carrier 2 relative to the base 1 through its elasticity, to limit the carrier 2 within the movement stroke range, which is beneficial for preventing collision.
[0255] It should be noted that FIG. 20 only illustrates the elastic member 171, and does not limit the shape and number of the elastic member 171. It can be understood that the elastic member 171 can also have other shapes, such as Z-shaped, C-shaped, etc., and the elastic member 171 can also have other numbers, such as 2, 3, or more, etc.
[0256] In some other examples (see FIG. 21), the balancing assembly 17 can include a balancing magnet 172 and a magnetic body 173, and the balancing magnet 172 and the magnetic body 173 are at least partially arranged opposite to each other. The balancing magnet 172 magnetically attracts the magnetic body 173. In this embodiment, the balancing magnet 172 is mounted on the third load portion 23, and the magnetic body 173 is mounted on the bottom portion 11; or the balancing magnet 172 is mounted on the bottom portion 11, and the magnetic body 173 is mounted on the third load portion 23.
[0257] In the embodiment, by arranging the balancing magnet 172 and the magnetic body 173, the magnetic attraction force between the two can be used to pull the third load portion 23 towards the bottom portion 11, so as to balance the load of the first load portion 21 and the third load portion 23. In this embodiment, the balancing magnet 172 and the magnetic body 173 can still generate a magnetic attraction force when arranged at intervals, so that the design of the balancing magnet 172 and the magnetic body 173 will not interfere with the movement of the carrier 2 relative to the base 1.
[0258] Please refer to FIG. 4, FIG. 22A and FIG. 22B, FIG. 22A is a structural schematic diagram of the first shielding plate 7 mounted on the housing 10 in some embodiments of the motor 20 shown in FIG. 3; and FIG. 22B is a structural schematic diagram of the structure shown in FIG. 22A along the line E-E in some embodiments.
[0259] In some embodiments, the housing 10 can include a first side plate 101, a second side plate 102, a front plate 103, a back plate 104, and a top plate 105. The first side plate 101 and the second side plate 102 are arranged in the third direction Y, the front plate 103 is connected between the first side plate 101 and the second side plate 102, the back plate 104 is also connected between the first side plate 101 and the second side plate 102, and the front plate 103 and the back plate 104 are arranged in the first direction X. The first side plate 101, the second side plate 102, the front plate 103, and the back plate 104 can form a space with two openings in the second direction Z, and the top plate 105 covers one of the openings and connects one side of the first side plate 101, the second side plate 102, the front plate 103, and the back plate 104.
[0260] The front plate 103 can have a first through hole 1031, and the back plate 104 can have a second through hole 1041. The first through hole 1031 and the second through hole 1041 can be arranged opposite to each other in the first direction X, so that when the motor 20 is installed with at least part of the lens of the lens 40, the light can pass through the first through hole 1031 and the second through hole 1041 in sequence.
[0261] The side of the first side plate 101 away from the top plate 105 can have a slot 1011.
[0262] In some embodiments, the first shielding plate 7 can be installed on the inner wall of the housing 10. Specifically, the first shielding plate 7 can be installed on the surface of the first side plate 101 facing the second side plate 102.
[0263] The first shielding plate 7 can be fixedly installed on the inner wall of the housing 10 by bonding, welding, or the like.
[0264] Please refer to FIG. 3, FIG. 23, and FIG. 24. FIG. 23 is a partial structure diagram of the motor 20 shown in FIG. 3 along the line F-F in an embodiment; and FIG. 24 is a structure diagram of the motor 20 shown in FIG. 3 without the first shielding plate 7 in some embodiments.
[0265] In some embodiments, the first shielding plate 7 can be located between the first side plate 12 and the inner wall of the housing 10, and the first shielding plate 7 can be arranged opposite to the first coil 311 and the second coil 312.
[0266] In this embodiment, by designing the first shielding plate 7, the first coil 311 and the second coil 312 can be shielded to reduce the noise of the first coil 311 and the second coil 312 after being powered on, which can reduce the noise generated during the operation of the motor 20.
[0267] For example, the orthographic projections of the first coil 311 and the second coil 312 on the first shielding plate 7 can fall within the shielding plate, so that the first shielding plate 7 can better shield and cover the first coil 311 and the second coil 312, which is beneficial to improving the effect of shielding the noise generated by the operation of the first coil 311 and the second coil 312.
[0268] The first shielding plate 7 covers the gap between the first support plate 121 and the second support plate 122 in the first direction X, so that the first shielding plate 7, the first support plate 121, the second support plate 122, the first carrier 21 and the bottom 11 can enclose and form a space to accommodate the first coil 311 and the second coil 312. The spatial design can form a wrapping effect on the first coil 311 and the second coil 312, which is beneficial to improving the shielding effect on the noise generated by the operation of the first coil 311 and the second coil 312.
[0269] The thickness of the first shielding plate 7 can be greater than or equal to 0.25 mm (see L1 in Figure 24). For example, the thickness of the first shielding plate 7 can be, but is not limited to, 0.25 mm, 0.27 mm, 0.29 mm, 0.30 mm, 0.32 mm, 0.34 mm, 0.35 mm, 0.36 mm, or other values greater than 0.25 mm.
[0270] In this embodiment, since the motor 20 adopts a single-sided drive method, the driving force required on one side is higher, which causes the first coil 311 and the second coil 312 to generate greater noise when they are working. By designing the thickness of the first shielding plate 7 to meet the above dimensions, the noise generated by the first coil 311 and the second coil 312 can be effectively shielded.
[0271] The design of the first shielding plate 7 can reduce the noise generated by the motor 20 to less than or equal to 23 decibels, thereby improving the quietness of the motor 20 and enhancing the user experience of the camera module 100 and electronic device 1000.
[0272] In some other embodiments, when the first coil 311 and the second coil 312 are embedded in the first side portion 12 in the manner shown in FIG. 8B, the first side portion 12 can reinforce the installation of the first coil 311 and the second coil 312, and the first side portion 12 can cover at least part of the first coil 311 and the second coil 312, so that the vibration generated by the operation of the first coil 311 and the second coil 312 is smaller, which is conducive to reducing the noise generated by the operation of the first coil 311 and the second coil 312, so that the first shielding plate 7 does not need to be designed to be very thick to achieve the expected noise shielding effect. For example, the thickness of the first shielding plate 7 can be less than 0.25 mm, and the noise generated by the operation of the motor 20 can be less than or equal to 23 decibels.
[0273] In some embodiments, the side edge of the first circuit board 5 away from the second side portion 13 can extend out through the slot 1011 of the first side plate 101 of the housing 10.
[0274] In the present embodiment, the first side plate 101 of the housing 10 is provided with the slot 1011, so that the first circuit board 5 can extend out of the housing 10 through the slot 1011. Correspondingly, pins can be arranged on the part of the first circuit board 5 exposed outside the housing 10, so that the first circuit can be connected to other circuits, such as power supply circuits, control circuits, etc. The partial exposure of the first circuit board 5 is conducive to shortening the wiring distance.
[0275] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict, and any combination of the features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined according to actual needs.
[0276] It should be noted that all the above-mentioned drawings are exemplary illustrations of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.
[0277] The above is only some embodiments and implementations of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A motor (20) characterized by, The base (1), the carrier (2), the first coil (311), the second coil (312), the first magnetic piece (321) and the second magnetic piece (322) are included. The base (1) includes a bottom (11) and a first side (12) connected to each other, the first side (12) is arranged at an angle with the bottom (11), the carrier (2) is connected to the base (1), and the carrier (2) can move relative to the base (1) along a first direction (X). The first coil (311) and the second coil (312) are both mounted on the first side (12), and the first coil (311) and the second coil (312) are arranged in the first direction (X). The first magnetic piece (321) and the second magnetic piece (322) are both mounted on one side of the carrier (2) close to the first side (12), the first magnetic piece (321) and the first coil (311) are arranged opposite to each other, the second magnetic piece (322) and the second coil (312) are arranged opposite to each other, and the first magnetic piece (321) and the second magnetic piece (322) are both Halbach magnets. The first magnetic piece (321) includes a first magnet (3211) and a second magnet (3212) arranged in the first direction (X), the first magnet (3211) and the second magnet (3212) both have a magnetic pole surface facing the first coil (311), and the polarity direction of the first magnet (3211) is opposite to that of the second magnet (3212). The second magnetic piece (322) includes a third magnet (3221) and a fourth magnet (3222) arranged in the first direction (X), the polarity direction of the third magnet (3221) is opposite to that of the first magnet (3211), and the polarity direction of the fourth magnet (3222) is opposite to that of the second magnet (3212).
2. The motor (20) of claim 1, wherein, The first coil (311) includes a first long side (3111), a first short side (3112), a second long side (3113) and a second short side (3114) connected end to end in sequence, the first long side (3111) is arranged opposite to the first magnet (3211), and the second long side (3113) is arranged opposite to the second magnet (3212). And / or, the second coil (312) includes a third long side (3121), a third short side (3122), a fourth long side (3123) and a fourth short side (3124) connected end to end in sequence, the third long side (3121) is arranged opposite to the third magnet (3221), and the fourth long side (3123) is arranged opposite to the fourth magnet (3222).
3. The motor (20) of claim 1 or 2, wherein, The first magnet (3211) has a first magnetization direction and a first polarity direction, the first magnetization direction is arranged at a non-90° angle with the first polarity direction, the second magnet (3212) has a second magnetization direction and a second polarity direction, the second magnetization direction is arranged at a non-90° angle with the second polarity direction, and the component of the first magnetization direction in the first direction has the same direction as the component of the second magnetization direction in the first direction; And / or, the third magnet (3221) has a third magnetization direction and a third polarity direction, the third magnetization direction is arranged at a non-90° angle with the third polarity direction, the fourth magnet (3222) has a fourth magnetization direction and a fourth polarity direction, the fourth magnetization direction is arranged at a non-90° angle with the fourth polarity direction, and the component of the third magnetization direction in the first direction has the same direction as the component of the fourth magnetization direction in the first direction.
4. The motor (20) of any one of claims 1 to 3, wherein, The first magnetic member (321) further comprises a fifth magnet (3213) located between the first magnet (3211) and the second magnet (3212), and the polarity direction of the fifth magnet (3213) is different from the polarity direction of the first magnet (3211) and the polarity direction of the second magnet (3212). And / or, the second magnetic member (322) further comprises a sixth magnet (3223) located between the third magnet (3221) and the fourth magnet (3222), and the polarity direction of the sixth magnet (3223) is different from the polarity direction of the third magnet (3221) and the polarity direction of the fourth magnet (3222).
5. The motor (20) of any one of claims 1 to 3, wherein, The first magnetic member (321) further comprises a fifth magnet (3213) and a seventh magnet (3214), both of which are located between the first magnet (3211) and the second magnet (3212), the fifth magnet (3213) is closer to the first magnet (3211) than the seventh magnet (3214), the polarity direction of the fifth magnet (3213) is the same as the polarity direction of the first magnet (3211), and the polarity direction of the seventh magnet (3214) is the same as the polarity direction of the second magnet (3212). And / or, the second magnetic member (322) further comprises a sixth magnet (3223) and an eighth magnet (3224), both of which are located between the third magnet (3221) and the fourth magnet (3222), the sixth magnet (3223) is closer to the third magnet (3221) than the eighth magnet (3224), the polarity direction of the sixth magnet (3223) is the same as the polarity direction of the third magnet (3221), and the polarity direction of the eighth magnet (3224) is the same as the polarity direction of the fourth magnet (3222).
6. The motor (20) of claim 5, wherein, The fifth magnet (3213) has a fifth magnetization direction and a fifth polarization direction, the fifth magnetization direction is arranged at a non-90° angle with the fifth polarization direction, and / or the seventh magnet (3214) has a seventh magnetization direction and a seventh polarization direction, the seventh magnetization direction is arranged at a non-90° angle with the seventh polarization direction. And / or, the sixth magnet (3223) has a sixth magnetization direction and a sixth polarization direction, the sixth magnetization direction is arranged at a non-90° angle with the sixth polarization direction, and / or the eighth magnet (3224) has an eighth magnetization direction and an eighth polarization direction, the eighth magnetization direction is arranged at a non-90° angle with the eighth polarization direction.
7. The motor (20) of any one of claims 1 to 6, wherein, The first magnetic member (321) and the second magnetic member (322) are in a split structure or an integrated structure.
8. The motor (20) of any one of claims 1 to 6, wherein, The second magnet (3212) and the third magnet (3221) are in a split structure or an integrated structure.
9. The motor (20) of any one of claims 1 to 8, wherein, The motor (20) further comprises a housing (10) and a first shielding plate (7), the housing (10) is connected with the base (1) to enclose a receiving space 14, the receiving space 14 receives the carrier (2), the first coil (311), the second coil (312), the first magnetic member (321), the second magnetic member (322) and the first shielding plate (7), and the first shielding plate (7) is located on the side of the first coil (311) and the second coil (312) away from the first magnetic member (321) and the second magnetic member (322).
10. The motor (20) of claim 9, wherein, The first coil (311) and the second coil (312) are in orthographic projection on the first shielding plate (7) and fall within the shielding plate.
11. The motor (20) as claimed in claim 9 or 10, characterized in that The thickness of the first shielding plate (7) is greater than or equal to 0.25mm.
12. The motor (20) of any one of claims 9 to 11, characterized in that The first side (12) comprises a first support plate (121) and a second support plate (122) arranged in the first direction (X), the first support plate (121) and the second support plate (122) are arranged at intervals, the first coil (311) and the second coil (312) are located between the first support plate (121) and the second support plate (122), the first shielding plate (7) is located between the first side (12) and the inner wall of the housing (10), and the first shielding plate (7) covers the interval between the first support plate (121) and the second support plate (122) in the first direction (X).
13. The motor (20) of claim 9 or 10, wherein, At least part of the first coil (311) and the second coil (312) is embedded in the first side (12).
14. The motor (20) of any one of claims 1 to 13, wherein, The motor (20) further comprises a position detection assembly (6), the position detection assembly (6) comprises a magnetic grid (61) and a tunnel magnetoresistance sensor (62). The magnetic grid (61) is mounted on the carrier (2), the magnetic grid (61) is arranged along the first direction (X), the tunnel magnetoresistance sensor (62) is mounted on the base (1), and the position detection assembly (6) is used to detect the position of the tunnel magnetoresistance sensor (62) relative to the magnetic grid (61), so as to detect the position of the carrier (2) relative to the base (1).
15. The motor (20) of claim 14, wherein, The carrier (2) comprises a first carrier portion (21), a second carrier portion (22), a third carrier portion (23) and a fourth carrier portion (24) connected in sequence, the first carrier portion (21) is close to the first side portion (12) relative to the third carrier portion (23), the first magnetic member (321) and the second magnetic member (322) are mounted on the side of the first carrier portion (21) away from the third carrier portion (23), and the magnetic grid (61) is mounted on the first carrier portion (21).
16. The motor (20) of claim 15, wherein, The motor (20) further comprises a second shielding plate (8), the second shielding plate (8) comprises a first sub-plate (81) and a second sub-plate (82), and the first sub-plate (81) and the second sub-plate (82) are connected in an L shape; The second shielding plate (8) is mounted on the side of the first carrier portion (21) facing the bottom portion (11), the magnetic grid (61) is mounted on the second shielding plate (8), the first sub-plate (81) is located between the magnetic grid (61) and the first magnetic member (321) and the second magnetic member (322), the second sub-plate (82) is located between the magnetic grid (61) and the coil, and the tunnel magnetoresistance sensor (62) is mounted on the bottom portion (11).
17. The motor (20) of any one of claims 1 to 16, wherein, The motor (20) further comprises a first connecting member (4a) and a second connecting member (4b), the first connecting member (4a) and the second connecting member (4b) are arranged at intervals, and the first connecting member (4a) and the second connecting member (4b) are used for connecting the carrier (2) and the base (1). The first connecting member (4a) is a sliding shaft, a spring piece, a suspension wire or a ball bearing; and / or the second connecting member (4b) is a sliding shaft, a spring piece, a suspension wire or a ball bearing.
18. The motor (20) of any one of claims 1 to 17, wherein, The first side portion (12) comprises a first support plate (121) and a second support plate (122) arranged in the first direction (X), the first support plate (121) and the second support plate (122) are arranged at intervals, the base (1) further comprises a second side portion (13) arranged opposite to the first side portion (12), the second side portion (13) is connected to the bottom portion (11), and the second side portion (13) comprises a third support plate (131), a connecting plate (132) and a fourth support plate (133) arranged in the first direction (X), and the connecting plate (132) is connected between the third support plate (131) and the fourth support plate (133); The carrier (2) comprises a first carrier portion (21), a second carrier portion (22), a third carrier portion (23) and a fourth carrier portion (24) connected in sequence, the first carrier portion (21) is provided with the first magnetic member (321) and the second magnetic member (322), at least part of the first carrier portion (21) is located between the first support plate (121) and the second support plate (122), the second carrier portion (22) is closer to the bottom (11) than the fourth carrier portion (24), and at least part of the third carrier portion (23) is located between the third support plate (131) and the fourth support plate (133).
19. The motor (20) of claim 18, wherein, The motor (20) further comprises a first connecting member (4a) and a second connecting member (4b), the first connecting member (4a) and the second connecting member (4b) are arranged at intervals, and the first connecting member (4a) and the second connecting member (4b) are used for connecting the carrier (2) and the base (1), the first connecting member (4a) is a sliding shaft, and the second connecting member (4b) is a sliding shaft. The second carrier portion (22) is provided with a first sliding groove (26), or the first carrier portion (21) is provided with the first sliding groove (26), or the first carrier portion (21) and the second carrier portion (22) enclose the first sliding groove (26). The second carrier portion (22) is provided with a second sliding groove (27), or the third carrier portion (23) is provided with the second sliding groove (27), or the third carrier portion (23) and the second carrier portion (22) enclose the second sliding groove (27). The opening of the first sliding groove (26) faces the bottom (11), the extension direction of the first sliding groove (26) is parallel to the first direction (X), the first connecting member (4a) is arranged in the first sliding groove (26) and located between the carrier (2) and the bottom (11), the opening of the second sliding groove (27) faces the bottom (11), the extension direction of the second sliding groove (27) is parallel to the first direction (X), and the second connecting member (4b) is arranged in the second sliding groove (27) and located between the carrier (2) and the bottom (11).
20. The motor (20) of claim 19, wherein, The first sliding groove (26) is a U-shaped groove or an L-shaped groove, and the second sliding groove (27) is a V-shaped groove. Alternatively, the first sliding groove (26) is a V-shaped groove, and the second sliding groove (27) is a U-shaped groove or an L-shaped groove.
21. The motor (20) of any one of claims 18 to 20, wherein, The motor (20) further comprises a first buffer member (16a), a second buffer member (16b), a third buffer member (16c) and a fourth buffer member (16d). The first buffer member (16a) is arranged on the surface of the first carrier portion (21) facing the first support plate (121), and / or the first buffer member (16a) is arranged on the surface of the first support plate (121) facing the first carrier portion (21). The second buffer (16b) is arranged on the surface of the first carrier (21) facing the second support plate (122), and / or the second buffer (16b) is arranged on the surface of the second support plate (122) facing the first carrier (21); The third buffer (16c) is arranged on the surface of the third carrier (23) facing the third support plate (131), and / or the third buffer (16c) is arranged on the surface of the third support plate (131) facing the third carrier (23); The fourth buffer (16d) is arranged on the surface of the third carrier (23) facing the fourth support plate (133), and / or the fourth buffer (16d) is arranged on the surface of the fourth support plate (133) facing the third carrier (23).
22. The motor (20) of any one of claims 18 to 21, wherein, The motor (20) further comprises a balancing assembly (17) connecting the third carrier (23) and the bottom (11), the balancing assembly (17) being configured to generate a force acting on the third carrier (23) and directed towards the bottom (11), and / or the balancing assembly (17) being configured to generate a force acting on the bottom (11) and directed towards the third carrier (23).
23. The motor (20) of claim 22, wherein, The balancing assembly (17) comprises a balancing magnet (172) and a magnetic body (173), the balancing magnet (172) and the magnetic body (173) being arranged at least partially opposite to each other, the balancing magnet (172) magnetically attracting the magnetic body (173); The balancing magnet (172) is mounted on the third carrier (23), and the magnetic body (173) is mounted on the bottom (11). Alternatively, the balancing magnet (172) is mounted on the bottom (11), and the magnetic body (173) is mounted on the third carrier (23).
24. The motor (20) of claim 22, wherein, The balancing assembly (17) further comprises an elastic member (171) connecting the third carrier (23) and the bottom (11), the elastic member (171) being in a tensile state.
25. The motor (20) of any one of claims 1 to 24, wherein, The motor (20) is a single-sided driving motor, and the motor (20) is configured to drive the first magnetic member (321) and the second magnetic member (322) through energization of the first coil (311) and the second coil (312) to drive the carrier (2) to move relative to the base (1).
26. An image capture module (100) comprising: A camera module (100) comprising a lens (40), an image sensor (50), and a motor (20) as claimed in any one of claims 1 to 25, the image sensor (50) being located on an image side of the lens (40), and a carrier (2) of the motor (20) mounting at least part of the lens (40).
27. An electronic device (1000), characterized by: A camera module (100) as claimed in claim 26, and a housing (300), the camera module (100) being mounted in the housing (300).
28. The electronic device (1000) according to claim 27, wherein, The electronic equipment (1000) further includes a side camera module (600) mounted to the housing (300), and the side camera module (600) is located on one side of the second side (13) of the base (1) of the motor (20) in the camera module (100).
Citation Information
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