Driving motor, camera module and electronic device

Abstract

The application discloses a driving motor, a camera module and an electronic device, and belongs to the technical field of camera modules. The driving motor comprises a shell, a carrier, a magnetic piece and a coil assembly. The carrier is located in the shell and is used for carrying a lens. The magnetic piece is connected with the carrier. The coil assembly is connected with the shell. The coil assembly comprises a first coil and a second coil. When the coil assembly is in a first energization state, the first coil and the second coil generate electromagnetic forces of the same direction on the magnetic piece, so that the magnetic piece drives the carrier to move. When the coil assembly is in a second energization state, the first coil and the second coil generate electromagnetic forces of opposite directions on the magnetic piece.

Description

Technical Field

[0001] This application belongs to the field of camera module technology, specifically relating to a drive motor, a camera module, and an electronic device. Background Technology

[0002] With societal development, people now have increasingly higher demands for image quality when taking photos and videos. This necessitates cameras with powerful shooting capabilities. Currently, there are many types of focusing solutions for mobile phones, highlighting the importance of camera focusing functionality.

[0003] The focusing speed of a camera motor is a crucial factor affecting users' photography needs. Current mobile phones can only improve focusing speed through software optimization, and how to further improve focusing speed is an urgent problem that needs to be solved in the field of camera technology. Utility Model Content

[0004] This application aims to provide a drive motor, camera module, and electronic device to solve the problem of how to improve the focusing speed of a camera in related technologies.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application propose a drive motor, comprising:

[0007] case;

[0008] The carrier, located inside the housing, is used to support the lens;

[0009] Magnetic components, connected to the carrier;

[0010] A coil assembly is connected to a housing. The coil assembly includes a first coil and a second coil. When the coil assembly is in a first energized state, the first coil and the second coil generate electromagnetic forces in the same direction on the magnetic component, so that the magnetic component drives the carrier to move. When the coil assembly is in a second energized state, the first coil and the second coil generate electromagnetic forces in opposite directions on the magnetic component.

[0011] Secondly, embodiments of this application propose a camera module, including:

[0012] Lens;

[0013] As in the first aspect, the lens is connected to the carrier in the drive motor.

[0014] Thirdly, embodiments of this application propose an electronic device, including:

[0015] Such as the camera module in the second aspect.

[0016] In the embodiments of this application, to improve focusing speed, during the focusing process, the two energized coils apply forces to the magnetic component in the same direction, increasing the force on the magnetic component. This results in a greater acceleration of the magnetic component during focusing compared to the acceleration when a single coil is used, thus shortening the focusing time. To shorten the stabilization time of the focus position, when the lens reaches or is about to reach the focus position, the current in the second coil is changed, causing the first and second coils to apply forces in opposite directions to the magnetic component. The force generated when the first coil is energized drives the magnetic component towards the focus position, while the force applied by the second coil to the magnetic component is opposite to the direction of its movement. During this process, the acceleration of the magnetic component is opposite to its direction of movement, allowing the magnetic component to quickly stabilize at the desired focus position, thus shortening the stabilization time of the focus.

[0017] This embodiment proposes a drive motor that utilizes the characteristics of dual coils. The first coil acts as a positive drive for the magnetic component, while the second coil acts as both a positive and negative drive for the magnetic component. By cleverly utilizing the dual function of the second coil, the driving force on the magnetic component is increased, thereby improving the focusing speed, and the focusing stabilization time of the magnetic component is shortened. Optimizing the focusing speed of the drive motor is beneficial to improving the shooting effect of the camera module.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the structure of a drive motor according to an embodiment of this application;

[0021] Figure 2 This is an exploded view of a drive motor according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of a drive motor according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the lens and carrier according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the coil assembly and magnetic component according to embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the coil assembly and magnetic component according to an embodiment of this application.

[0026] Figure label:

[0027] 100 Drive motor, 110 Housing, 111 Second ball groove, 112 Outer shell, 113 Base, 114 Notch, 120 Carrier, 121 First ball groove, 130 Magnetic component, 140 Coil assembly, 141 First coil, 142 Second coil, 150 Support component, 160 Flexible board, 170 Sensor, 180 Ball assembly, 190 Drive coil fixing steel sheet, 210 Lens. Detailed Implementation

[0028] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] The following is combined with Figures 1-6 This application describes a drive motor, a camera module, and an electronic device according to embodiments thereof.

[0032] Combination Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in some embodiments of this application, a drive motor 100 is proposed. The drive motor 100 includes: a housing 110, a carrier 120, a magnetic element 130, and a coil assembly 140. The carrier 120 is located inside the housing 110 and is used to support the lens 210. The magnetic element 130 is connected to the carrier 120. The coil assembly 140 is connected to the housing 110 and includes a first coil 141 and a second coil 142. In a first energized state, the first coil 141 and the second coil 142 generate electromagnetic forces in the same direction on the magnetic element 130, causing the magnetic element 130 to drive the carrier 120 to move. In a second energized state, the first coil 141 and the second coil 142 generate electromagnetic forces in opposite directions on the magnetic element 130, causing the magnetic element 130 to drive the carrier 120 to decelerate or stop moving.

[0033] The carrier 120 is disposed inside the housing 112. The carrier 120 is used to support the lens 210. When the carrier 120 moves, the carrier 120 drives the lens 210 to move. When the lens 210 moves along the optical axis, the focusing function of the camera module is realized.

[0034] Magnetic component 130 is fixed to carrier 120 and can move synchronously with carrier 120. Coil assembly 140 is fixed to housing 110, and its position relative to housing 110 remains unchanged. Coil assembly 140 is located within the magnetic field range of magnetic component 130. When energized, coil assembly 140 generates a magnetic field. The magnetic field of the energized coil interacts with the magnetic field of magnetic component 130, causing magnetic component 130 to move under the force, thus moving carrier 120. When the direction of the current flowing into coil assembly 140 is changed, the direction of movement of coil assembly 140 changes, thereby changing the direction of movement of carrier 120.

[0035] In this design, the coil assembly 140 includes a first coil 141 and a second coil 142. In the first energized state, the first coil 141 and the second coil 142 apply a force to the magnetic component 130, and the direction of the force applied by the first coil 141 to the magnetic component 130 by the second coil 142 is the same. Compared with the case where only one coil applies a force to the magnetic component 130, in this design, the first coil 141 and the second coil 142 simultaneously apply a force in the same direction to the magnetic component 130, which can increase the pushing or pulling force on the magnetic component 130, and the magnetic component 130 can move at a faster speed.

[0036] In the second energized state, the first coil 141 and the second coil 142 exert opposite forces on the magnetic element 130. Under the combined action of the first coil 141 and the second coil 142, the magnetic element 130 can decelerate or stop moving.

[0037] To improve focusing speed, during focusing, the two energized coils exert forces on the magnetic component 130 in the same direction, increasing the force on the magnetic component 130. This results in a greater acceleration of the magnetic component 130 during focusing compared to when a single coil is used, thus shortening the focusing time. To shorten the stabilization time of the focus position, when the lens 210 reaches or is about to reach the focus position, the current in the second coil 142 is changed. This causes the first coil 141 and the second coil 142 to exert forces on the magnetic component 130 in opposite directions. The force generated when the first coil 141 is energized drives the magnetic component 130 towards the focus position. The force exerted by the second coil 142 on the magnetic component 130 is opposite to the direction of its movement. During this process, the acceleration of the magnetic component 130 is opposite to its direction of movement, allowing the magnetic component 130 to quickly stabilize at the desired focus position, further shortening the stabilization time.

[0038] This embodiment proposes a drive motor 100 that utilizes the characteristics of dual coils. When the first coil 141 is energized, it plays the role of positively driving the magnetic component 130. When the second coil 142 is energized, it plays the role of either positively or negatively driving the magnetic component 130. By cleverly utilizing the dual function of the second coil 142, the driving force on the magnetic component 130 is increased, thereby improving the focusing speed, and the focusing stabilization time of the magnetic component 130 is shortened. By optimizing the focusing speed of the drive motor 100, it is beneficial to improve the shooting effect of the camera module.

[0039] Combination Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in one possible embodiment, the first coil 141 and the second coil 142 are located on the same side of the carrier 120. In the first energized state, the current in the first coil 141 and the second coil 142 is in the same direction, and in the second energized state, the current in the first coil 141 and the second coil 142 is in opposite directions.

[0040] In this design, the first coil 141 and the second coil 142 are arranged on the same side of the carrier 120. That is, the first coil 141 and the second coil 142 will occupy the space on the same side of the carrier 120, so that there is no need to leave space for coil installation on multiple sides of the carrier 120. This is beneficial to improving the space utilization rate inside the drive motor 100, which is conducive to realizing the miniaturization of the drive motor 100.

[0041] To improve focusing speed, during focusing, the two coils are energized with current in the same direction. For example, the current in the first coil 141 and the second coil 142 is either clockwise or counterclockwise. This allows a larger force to be applied to the magnetic component 130, which then has a larger acceleration, thus shortening the focusing time.

[0042] When the magnetic component 130 needs to decelerate or stop moving, the two coils carry currents in opposite directions. For example, the current in the first coil 141 is clockwise and the current in the second coil 142 is counterclockwise, so that the magnetic component 130 can quickly stabilize at the position that needs to be focused, shortening the focusing stabilization time.

[0043] In one possible embodiment, the first coil 141 and the second coil 142 are located on different sides of the carrier 120. In the first energized state and the second energized state, the energizing direction of the first coil 141 remains unchanged, while the energizing direction of the second coil 142 is opposite.

[0044] When space is limited on one side of the carrier 120, the first coil 141 and the second coil 142 can be placed on different sides of the carrier 120. In the first energized state, if the energizing direction of the first coil 141 is clockwise, the energizing direction of the first coil 141 remains clockwise in the second energized state. In the first energized state, if the energizing direction of the second coil 142 is clockwise, the energizing direction of the second coil 142 is counterclockwise in the second energized state. In both the first and second energized states, the second coil 142 changes the direction of the force applied to the magnetic component 130, thereby achieving the purpose of accelerating or decelerating the magnetic component 130.

[0045] Combination Figure 2 and Figure 3 As shown, in one possible embodiment, the first coil 141, the second coil 142, and the magnetic element 130 are all located on the same side of the carrier 120. When the first coil 141 and the second coil 142 are energized, the first coil 141 and the second coil 142 apply electromagnetic force to the same magnetic element 130.

[0046] The magnetic component 130 and the coil assembly 140 are both disposed on the same side of the carrier 120. Therefore, along the moving direction of the lens 210, the coil assembly 140 is disposed on one side of the magnetic component 130. In this case, when the first coil 141 and the second coil 142 are energized, the direction of the force exerted by the first coil 141 and the second coil 142 on the lens 210 can be parallel to the moving direction of the lens 210, avoiding an angle between the force direction and the moving direction, ensuring the smoothness of the carrier 120 during movement, and preventing fluctuations when the carrier 120 moves, thereby improving the stability of the focusing process.

[0047] Moreover, the arrangement of the magnetic component 130, the first coil 141 and the second coil 142 described above results in a smaller gap between the first coil 141 and the magnetic component 130, and a smaller gap between the second coil 142 and the magnetic component 130. This allows the first coil 141 and the second coil 142 to apply force to the magnetic component 130 more quickly and stably.

[0048] Combination Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, in one possible embodiment, both the first coil 141 and the second coil 142 are ring-shaped, the second coil 142 is located within the ring-shaped area of ​​the first coil 141, and the first coil 141 and the second coil 142 are arranged concentrically.

[0049] Both the first coil 141 and the second coil 142 are ring structures. The first coil 141 is wrapped around the outer periphery of the second coil 142. In this arrangement, the whole of the first coil 141 and the second coil 142 occupies a small space, which improves the space utilization rate inside the housing 110 and is conducive to the miniaturization of the drive motor 100.

[0050] The first coil 141 and the second coil 142 are arranged concentrically, so that the centers of the first coil 141 and the second coil 142 coincide. When the first coil 141 and the second coil 142 are energized, the force exerted by the first coil 141 and the second coil 142 on the magnetic component 130 is more balanced, which makes it less likely for the magnetic component 130 to deviate, thereby ensuring the stability of the carrier 120 during movement.

[0051] Combination Figure 2 and Figure 3As shown, in one possible embodiment, the drive motor 100 further includes: a support member 150, a flexible board 160, and a sensor 170. The support member 150 is connected to the housing 110, the flexible board 160 is connected to the support member 150, the coil assembly 140 and the sensor 170 are disposed on the side of the flexible board 160 away from the support member 150, the sensor 170 is used to collect the position of the carrier 120, and the flexible board 160 is used to supply power to the sensor 170 and the coil assembly 140.

[0052] The flexible printed circuit board 160 supplies power to the sensor 170 and the coil assembly 140. The flexible printed circuit board 160 can change the power supply state of the coil assembly 140, causing the coil assembly 140 to drive the carrier 120 to accelerate, decelerate, or stop. The sensor 170 can collect the position of the carrier 120, thereby determining whether the carrier 120 has moved into position based on the information collected by the sensor 170, ensuring that the drive motor 100 can achieve precise focusing.

[0053] The flexible circuit board 160 is prone to deformation. In this solution, the flexible circuit board 160 is fixed to the support member 150. The support member 150 supports the flexible circuit board 160 to ensure the structural stability of the flexible circuit board 160 and ensure that the flexible circuit board 160 can stably supply power to the sensor 170 and the coil assembly 140.

[0054] Combination Figure 2 and Figure 3 As shown, in one possible embodiment, the drive motor 100 further includes: a ball assembly 180, a carrier 120 having a first ball groove 121, and a housing 110 having a second ball groove 111, the length direction of the first ball groove 121 and the second ball groove 111 being ( Figure 2 The arrow at L1 points in the same direction as the movement of the carrier 120. The ball assembly 180 is located between the first ball groove 121 and the second ball groove 111. The ball assembly 180 and the magnetic component 130 are located on the same side of the carrier 120, along the first direction ( Figure 3 (The arrow at L2 points to) , ball bearings 180 are symmetrically arranged on both sides of the magnetic component 130, with the first direction perpendicular to the moving direction of the carrier 120.

[0055] A ball bearing assembly 180 is provided between the carrier 120 and the housing 110, and each ball bearing assembly 180 may include multiple balls. The ball bearing assembly 180 can reduce the friction between the carrier 120 and the housing 110, which helps to improve the stability of the carrier 120 during movement. A first ball bearing groove 121 is machined on the carrier 120, and a second ball bearing groove 111 is machined on the housing 110. The ball bearing assembly 180 is embedded between the first ball bearing groove 121 and the second ball bearing groove 111. The first ball bearing groove 121 and the second ball bearing groove 111 limit the ball bearing assembly 180 to prevent the ball bearing assembly 180 from dislodging from the carrier 120 and the housing 110.

[0056] Ball bearing sets 180 are symmetrically arranged on both sides of the magnetic component 130. The two sets of ball bearing sets 180 can balance the force on the carrier 120 and further improve the stability of the carrier 120 when it moves.

[0057] Combination Figure 2 and Figure 3 As shown, in one possible embodiment, the housing 110 includes: an outer shell 112 and a base 113, the base 113 being located inside the outer shell 112, the base 113 having a notch 114, a magnetic element 130 and a coil assembly 140 being located within the notch 114, and the magnetic element 130 being movable within the notch 114.

[0058] The outer casing 112 protects the internal structure. The internal components can be installed first, and then the outer casing 112 can be placed on the base 113, which facilitates the installation and maintenance of the internal structure of the outer casing 112.

[0059] A notch 114 is machined into the base 113. The magnetic component 130 and the coil assembly 140 are disposed in the notch 114. Therefore, the notch 114 provides a space for the magnetic component 130 and the coil assembly 140. The installation position of the magnetic component 130 and the coil assembly 140 is closer to the center of the base 113, which is conducive to the miniaturization of the drive motor 100.

[0060] In the embodiments of this application, the drive motor 100 is composed of a motor housing (outer shell 112), a carrier 120, a ball bearing assembly 180, a magnetohydrodynamic cavity, a magnetic component 130, a coil assembly 140, a position sensor (sensor 170), a drive coil fixing steel plate 190, a base 113, a reinforcing steel plate (support 150), a flexible board 160, and other components.

[0061] The motor housing serves to protect the internal components of the drive motor 100.

[0062] The carrier 120 serves to fix the lens 210 and also provides a track for the ball bearing assembly 180.

[0063] The magnetic component 130 is connected to the carrier 120. When the coil assembly 140 is energized, it generates electromagnetic force, which provides power for the movement of the carrier 120.

[0064] The ball bearing assembly 180 serves to support the movement of the carrier 120.

[0065] The position sensor provides positioning for the camera module to focus accurately.

[0066] When the first coil 141 is energized, the first coil 141 interacts with the magnetic component 130 to generate an electromagnetic force, which drives the magnetic component 130 and the carrier 120 to move.

[0067] When the second coil 142 is energized, it generates an electromagnetic force in the same direction as the first coil 141 during the focusing process, and generates an electromagnetic force opposite to that of the first coil 141 during the stabilization process.

[0068] The drive coil fixing steel plate 190 serves to fix the first coil 141 and the second coil 142, and the drive coil fixing steel plate 190 is fixed to the housing 110.

[0069] The base 113 provides a track for the movement of the ball bearing assembly 180 and also serves to protect the internal components of the drive motor 100.

[0070] The reinforcing steel sheet serves to protect the soft plate 160.

[0071] The flexible circuit board 160 provides power to the drive motor 100 and also serves to fix the Hall sensor 170.

[0072] In this design, the first coil 141 and the second coil 142 are on the same side of the carrier 120 and share the magnetic component 130 of the drive motor 100. This is beneficial for miniaturizing the drive motor 100 and also improves the driving force of the drive motor 100.

[0073] The drive motor 100 has two pairs of symmetrical tracks. A ball bearing assembly 180 supports the carrier 120 for movement. The first coil 141, the second coil 142, and the position sensor are fixed inside the flexible plate 160. The center of the magnetic component 130 is relative to the centers of the first coil 141 and the second coil 142. The magnetic component 130 is fixed to one side of the carrier 120 and moves together with it. When the drive motor 100 needs to focus, the first coil 141 and the second coil 142 are energized, generating an electromagnetic force between them and the magnetic component 130. The magnetic component 130 moves under this force, causing a relative displacement of the carrier 120. The magnetic component 130 then moves the carrier 120 together. When the focusing position is reached, the second coil 142 receives a current in the opposite direction, generating an effect opposite to the direction of movement of the carrier 120, allowing the drive motor 100 to quickly stabilize at the focusing position.

[0074] like Figure 5 As shown, in order to improve the focusing speed, when the two coils are energized with current in the same direction during the focusing process, the force of the driving magnet is increased, so that the acceleration of the driving magnet during the focusing process can be greater than the acceleration when a single coil is driven, thus shortening the focusing time.

[0075] like Figure 6As shown, in order to shorten the stabilization time of the focus position, when the focus position is reached, the two coils are energized with current in opposite directions. The force generated by the current applied by the first coil 141 drives the magnetic component 130 to move toward the focus position. The force generated by the current applied by the second coil 142, which is opposite to that of the first coil 141, is opposite to the direction of movement of the magnetic component 130. This makes the acceleration of the magnetic component 130 during the focusing process opposite to the direction of movement of the magnetic component 130, so that the magnetic component 130 quickly stabilizes at the position that needs to be focused, thus shortening the stabilization time of the focus.

[0076] During focusing: By passing current in the same direction through the dual coils, the electromagnetic force for focusing is enhanced, which increases the focusing acceleration and thus shortens the focusing time.

[0077] When the focus is stable: By passing currents in opposite directions through the dual coils, the direction of movement is subjected to opposite forces, which makes the carrier 120 quickly stabilize in the focus position.

[0078] This solution, by embedding the coils on the same side, facilitates the miniaturization of the drive motor 100, increases the thrust of the drive motor 100, and improves the performance of the drive motor 100.

[0079] In the embodiments of this application, a camera module is proposed, including a lens 210 and a drive motor 100 in any of the above embodiments. The lens 210 is connected to the carrier 120 in the drive motor 100. The camera module in this embodiment can achieve the technical effects of the drive motor 100 in any of the above embodiments, which will not be described in detail here.

[0080] In the embodiments of this application, an electronic device is proposed, which includes the camera module in the above embodiments and can achieve the same technical effect, and will not be described again here.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A drive motor, characterized in that, include: case; A carrier, located within the housing, is used to support the lens; Magnetic components are connected to the carrier; A coil assembly connected to the housing, the coil assembly including a first coil and a second coil; When the coil assembly is in a first energized state, the first coil and the second coil generate electromagnetic forces in the same direction on the magnetic component; When the coil assembly is in a second energized state, the first coil and the second coil generate electromagnetic forces in opposite directions on the magnetic component.

2. The drive motor according to claim 1, characterized in that, The first coil and the second coil are located on the same side of the carrier. In the first energized state, the current in the first coil and the second coil is in the same direction. In the second energized state, the current in the first coil and the second coil is in opposite directions.

3. The drive motor according to claim 1, characterized in that, The first coil and the second coil are located on different sides of the carrier. In the first energized state and the second energized state, the energizing direction of the first coil remains unchanged, while the energizing direction of the second coil is opposite.

4. The drive motor according to claim 1, characterized in that, The first coil, the second coil, and the magnetic element are all located on the same side of the carrier. When the first coil and the second coil are energized, the first coil and the second coil apply electromagnetic force to the same magnetic element.

5. The drive motor according to any one of claims 1 to 4, characterized in that, Both the first coil and the second coil are toroidal, with the second coil located within the toroidal region of the first coil, and the first coil and the second coil are arranged concentrically.

6. The drive motor according to any one of claims 1 to 4, characterized in that, The drive motor also includes: Support member, connected to the housing; The flexible board is connected to the support member; The sensor, the coil assembly, and the sensor are disposed on the side of the flexible circuit board away from the support member. The sensor is used to acquire the position of the carrier, and the flexible circuit board is used to power the sensor and the coil assembly.

7. The drive motor according to any one of claims 1 to 4, characterized in that, The drive motor also includes: The carrier has a first ball groove, and the housing has a second ball groove. The length direction of the first ball groove and the second ball groove is in the same direction as the moving direction of the carrier. The ball assembly is located between the first ball groove and the second ball groove. The ball assembly and the magnetic component are located on the same side of the carrier. Along a first direction, the ball assembly is symmetrically arranged on both sides of the magnetic component. The first direction is perpendicular to the moving direction of the carrier.

8. The drive motor according to any one of claims 1 to 4, characterized in that, The housing includes: shell; A base is located inside the housing. The base has a notch, and the magnetic component and the coil assembly are located within the notch. The magnetic component is movable within the notch.

9. A camera module, characterized in that, include: Lens; The drive motor according to any one of claims 1 to 8, wherein the lens is connected to the carrier in the drive motor.

10. An electronic device, characterized in that, include: The camera module as described in claim 9.

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