Lens modules and electronic devices

Abstract

This application discloses a lens module and an electronic device. The lens module includes: a fixed part and a movable part, the movable part being movable relative to the fixed part along a first direction and a second direction; a lens disposed on the movable part; a magnetic component assembly disposed on the fixed part; and a first coil part disposed on the movable part. The first coil part and the magnetic component assembly are disposed correspondingly along a third direction, the third direction being perpendicular to the plane containing the first direction and the second direction. When the first coil part is energized, the first coil part and the magnetic component assembly drive the movable part to move along at least one of the first direction and the second direction.

Description

Technical Field

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

[0002] In related technologies, the optical image stabilization (OIS) motor is typically square, with an electromagnetic drive on each side. This means there are magnets and coils on all four sides, with two pairs of sides forming a drive group. These groups simultaneously generate magnetic thrust in the same direction to propel the motor in either the X or Y direction, thus achieving image stabilization. However, the movement of the magnets generates significant power consumption, and the relatively small load capacity of the suspension wire makes it prone to wire breakage and image stabilization failure. Summary of the Invention

[0003] This application aims to provide a lens module and electronic device that at least solves the problem of excessive power consumption during motor operation in related technologies.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] In a first aspect, embodiments of this application provide a lens module, comprising: a fixed part and a movable part, the movable part being movable relative to the fixed part along a first direction and a second direction; a lens disposed on the movable part; a magnetic component assembly disposed on the fixed part; a first coil part disposed on the movable part, the first coil part and the magnetic component assembly being disposed correspondingly along a third direction, the third direction being perpendicular to the plane containing the first direction and the second direction, wherein, when the first coil part is energized, the first coil part and the magnetic component assembly drive the movable part to move along at least one of the first direction and the second direction.

[0006] Secondly, embodiments of this application provide an electronic device, including: a lens module as described in any of the first aspects.

[0007] In the embodiments of this application, the lens module includes a fixed part, a movable part, a lens, a magnetic component assembly, and a first coil part. The movable part is movable relative to the fixed part along a first direction and a second direction. The lens is disposed on the movable part, the first coil part is disposed on the movable part, and the magnetic component assembly is disposed on the fixed part. The first coil part and the magnetic component assembly are correspondingly disposed along a third direction. Thus, when the first coil part is energized, the magnetic field generated by the first coil part interacts with the magnetic field generated by the magnetic component assembly, causing the movable part containing the first coil part to move relative to the fixed part. That is, the movable part can move along the first direction and / or the second direction, thereby realizing the image stabilization function of the lens module. The placement of the first coil part on the movable part and the magnetic component assembly on the fixed part reduces the weight of the movable parts, thus reducing power consumption and solving the problem of excessive power consumption in the image stabilization function of lens modules in related technologies. Simultaneously, since the magnetic component assembly is disposed on the fixed part, it will not interfere with surrounding magnetic devices during image stabilization, thereby reducing the spacing between magnetic devices. In addition, the magnetic component assembly is fixed on the fixed part, and the first coil part is set on the movable part. The structure is simple and will not cause the problem of wire breakage in related technologies, thus ensuring the reliability of the lens module's image stabilization.

[0008] 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

[0009] 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:

[0010] Figure 1 This is an exploded view of a lens module according to an embodiment of this application;

[0011] Figure 2 This is a schematic diagram of the lens module according to an embodiment of this application;

[0012] Figure 3 It is along Figure 2 Sectional view of line AA in the middle;

[0013] Figure 4 It is along Figure 2 Sectional view of the middle BB line;

[0014] Figure 5 It is along Figure 2 A cross-sectional view of the CC line;

[0015] Figure 6 yes Figure 3 A magnified view of point D, indicated by the center circle;

[0016] Figure 7This is an exploded view of a portion of the structure of a lens module according to an embodiment of this application;

[0017] Figure 8 This is a schematic diagram of the exploded and assembled structure of the bracket and the first coil portion according to an embodiment of this application;

[0018] Figure 9 This is an exploded and assembled structural diagram of the base and magnetic component assembly according to an embodiment of this application;

[0019] Figure 10 This is a schematic diagram of the magnetic field effect of the first coil section and the magnetic component assembly according to an embodiment of this application;

[0020] Figure 11 This is a schematic diagram of the lens module layout according to an embodiment of this application;

[0021] Figure 12 This is a schematic block diagram of a lens module according to an embodiment of this application.

[0022] Figure label:

[0023] 100 Lens module, 1 Fixing part, 10 Housing, 12 Base, 120 Terminal, 122 Second metal insert, 124 Mounting slot, 2 Movable part, 20 Bracket, 200 First metal insert, 202 Magnetic piece, 204 Groove, 22 Carrier, 220 First spring, 222 Second spring, 224 Annular groove, 3 Lens, 4 Magnetic component group, 40 First magnetic component, 42 Second magnetic component, 5 First coil part, 50 First coil, 52 Second coil, 6 Second coil part, 7 Conductive ball, 8 Detection component, 9 Control component. Detailed Implementation

[0024] 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.

[0025] 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, "a plurality of" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects.

[0026] In the description of this application, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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.

[0028] The following is combined with Figures 1-12 This application describes a lens module and an electronic device according to embodiments thereof.

[0029] like Figure 1 As shown, a lens module 100 according to some embodiments of this application includes: a fixed part 1 and a movable part 2, the movable part 2 being movable relative to the fixed part 1 along a first direction and a second direction; a lens 3 disposed on the movable part 2; a magnetic component group 4 disposed on the fixed part 1; a first coil part 5 disposed on the movable part 2, the first coil part 5 and the magnetic component group 4 being disposed correspondingly along a third direction, the third direction being perpendicular to the plane containing the first direction and the second direction, wherein, when the first coil part 5 is energized, the first coil part 5 and the magnetic component group 4 drive the movable part 2 to move along at least one of the first direction and the second direction.

[0030] In the embodiments of this application, the lens module 100 includes a fixed part 1, a movable part 2, a lens 3, a magnetic component group 4, and a first coil part 5. The movable part 2 is movable relative to the fixed part 1 along a first direction and a second direction. The lens 3 is disposed on the movable part 2, the first coil part 5 is disposed on the movable part 2, and the magnetic component group 4 is disposed on the fixed part 1. The first coil part 5 and the magnetic component group 4 are correspondingly disposed along a third direction. Thus, when the first coil part 5 is energized, the magnetic field generated by the first coil part 5 interacts with the magnetic field generated by the magnetic component group 4, causing the movable part 2, where the first coil part 5 is located, to move relative to the fixed part 1. That is, the movable part 2 can move along the first direction and / or the second direction, thereby realizing the image stabilization function of the lens module 100. The placement of the first coil part 5 on the movable part 2 and the magnetic component group 4 on the fixed part 1 reduces the weight of the movable parts, thus reducing power consumption and solving the problem of excessive power consumption in the image stabilization function of the lens module 100 in related technologies. Meanwhile, since the magnetic component group 4 is mounted on the fixed part 1, it will not interfere with the surrounding magnetic components during image stabilization, thereby reducing the spacing between the magnetic components. In addition, the magnetic component group 4 is fixed on the fixed part 1, and the first coil part 5 is mounted on the movable part 2. The structure is simple and avoids the problem of wire breakage that occurs in related technologies, thus ensuring the reliability of the image stabilization of the lens module 100.

[0031] Among them, such as Figure 1 and Figure 3 As shown, the first, second, and third directions are different, thus the lens module 100 proposed in this application can achieve image stabilization in at least two directions, thereby improving shooting performance.

[0032] Furthermore, the third direction is perpendicular to the plane containing the first and second directions, and furthermore, the first direction, the second direction, and the third direction are perpendicular to each other.

[0033] In specific applications, the magnetic component group 4 includes a magnet assembly. Of course, the magnetic component group 4 can also be a magnetic structure such as an electromagnetic coil.

[0034] Understandably, when the lens module 100 shakes, in order to prevent the lens 3 from affecting the shooting effect due to the shaking, the first coil part 5 can be energized to generate a magnetic field. Then, under the action of the magnetic field generated by the first coil part 5 and the magnetic field generated by the magnetic component group 4, a pushing force can be generated on the first coil part 5, thereby pushing the first coil part 5 and the movable part 2 where the first coil part 5 is located to move in the direction of the force. This causes the movable part 2 and the lens 3 on the movable part 2 to move in the opposite direction of the shaking, thereby realizing the image stabilization function of the lens module 100 and improving the shooting effect.

[0035] like Figure 2 and Figure 3As shown, according to some embodiments of this application, the lens module 100 further includes: a second coil portion 6, disposed in the movable portion 2, the second coil portion 6 being located within the space enclosed by the magnetic component group 4, and when the second coil portion 6 is energized, the second coil portion 6 and the magnetic component group 4 drive the movable portion 2 to move in a third direction.

[0036] In this embodiment, the lens module 100 further includes a second coil section 6, which is disposed on the movable section 2. When the second coil section 6 is energized, the magnetic field generated by the second coil section 6 interacts with the magnetic field generated by the magnetic component group 4, enabling the movable section 2 to move along a third direction, thereby enabling the lens 3 to move along a third direction and realizing the focusing function of the lens module 100. This application reduces the weight of the carrier 22 on the movable section 2 by moving the second coil section 6 and the movable section 2 connected to the second coil section 6, thereby reducing power consumption.

[0037] It should be noted that the third direction refers to the axis of lens 3, that is, the focusing function of lens 3 can be achieved through the movement of lens 3 in the third direction.

[0038] The lens module 100 proposed in this application has a first coil part 5 and a second coil part 6 both disposed on the movable part 2, and the first coil part 5 and the second coil part 6 share the same magnetic component group 4. This reduces the overall power consumption of the lens module 100 and also reduces the overall size of the lens module 100.

[0039] like Figure 4 , Figure 5 and Figure 6 As shown, according to some embodiments of this application, the lens module 100 further includes a conductive ball 7 disposed between the movable part 2 and the fixed part 1. The conductive ball 7 is electrically connected to the movable part 2 and the fixed part 1, and the movable part 2 is movably connected to the fixed part 1 through the conductive ball 7.

[0040] In this embodiment, the lens module 100 also includes a conductive ball 7, which is disposed between the movable part 2 and the fixed part 1. On the one hand, the conductive ball 7 can realize the movable connection between the movable part 2 and the fixed part 1, so that the movable part 2 can move relative to the fixed part 1 in at least one of the first and second directions. On the other hand, the conductive ball 7 can also realize the electrical connection between the components on the movable part 2 and the components on the fixed part 1. For example, the conductive ball 7 can connect the first coil part 5 to the port on the fixed part 1, thereby realizing the power supply of the first coil part 5 and reducing the wiring difficulty of the lens module 100.

[0041] It is understandable that the conductive ball 7 is a ball with conductive function. Specifically, the conductive ball 7 can be a conductive metal ball, such as a copper ball or an iron ball.

[0042] like Figure 5 As shown, according to some embodiments of this application, the movable part 2 is provided with a first metal insert 200, and the first coil part 5 is electrically connected to the first metal insert 200; the fixed part 1 is provided with a terminal 120 and a second metal insert 122, the second metal insert 122 is electrically connected to the terminal 120, the conductive ball 7 is electrically connected between the first metal insert 200 and the second metal insert 122, and the second coil part 6 is connected to the second metal insert 122.

[0043] In this embodiment, a first metal insert 200 is provided on the movable part 2, and a second metal insert 122 and a terminal 120 electrically connected to the second metal insert 122 are provided on the fixed part 1. The first coil part 5 is electrically connected to the first metal insert 200, the conductive ball 7 connects the first metal insert 200 and the second metal insert 122, and the second coil part 6 is electrically connected to the second metal insert 122, so that the first coil part 5 and the second coil part 6 are electrically connected to the terminal 120, thereby energizing both the first coil part 5 and the second coil part 6.

[0044] In specific applications, there are multiple second metal inserts 122, which are spaced apart. The first coil section 5 is connected to at least one of the multiple second metal inserts 122 through the first metal insert 200. The second coil section 6 is electrically connected to at least one of the second metal inserts 122 other than the second metal inserts 122 connected to the first coil section 5, thereby realizing separate control of the first coil section 5 and the second coil section 6.

[0045] It is understood that terminal 120 is connected to the control unit of lens module 100, specifically, the control unit includes a circuit board.

[0046] Furthermore, the number of conductive balls 7 is multiple.

[0047] like Figure 1 As shown, according to some embodiments of this application, the fixing part 1 is provided with a mounting groove 124, and the conductive ball 7 is movably disposed in the mounting groove 124.

[0048] In this embodiment, a mounting groove 124 is provided on the fixing part 1, and the conductive ball 7 is installed in the mounting groove 124 to limit the position of the conductive ball 7, thereby ensuring the reliability of the connection between the moving part 2 and the fixing part 1.

[0049] Understandably, the conductive ball 7 can rotate within the mounting slot 124.

[0050] Accordingly, a groove 204 is provided on the movable part 2, and a portion of the conductive ball 7 is disposed in the groove 204 and a portion is disposed in the mounting groove 124.

[0051] like Figure 1 , Figure 4 and Figure 7 As shown, according to some embodiments of this application, the movable part 2 is provided with at least one magnetic absorbing piece 202, which is attracted to the magnetic component group 4 so that the movable part 2 and the fixed part 1 clamp the conductive ball 7.

[0052] In this embodiment, at least one magnetic absorbing piece 202 is provided on the movable part 2. The magnetic absorbing piece 202 on the movable part 2 is attracted to the magnetic component group 4 on the fixed part 1, so that the movable part 2 and the fixed part 1 are tightly attached together, thereby clamping the conductive ball 7 between them, improving the reliability of the movable connection between the movable part 2 and the fixed part 1.

[0053] In practical applications, the magnetic suction piece 202 on the movable part 2 is disposed on the side of the movable part 2 opposite to the fixed part 1. Furthermore, a limiting groove is provided on the movable part 2, and the magnetic suction piece 202 is disposed within the limiting groove. For example... Figure 1 , Figure 3 and Figure 8 As shown, according to some embodiments of this application, the movable part 2 includes: a bracket 20, which is movably connected to the fixed part 1; a first coil part 5 disposed on the bracket 20; the first coil part 5 and the magnetic component group 4 are capable of driving the bracket 20 to move in at least one of a first direction and a second direction; the bracket 20 is movably connected to the fixed part 1 through conductive balls 7; and a carrier 22 connected to the bracket 20; a lens 3 and a second coil part 6 disposed on the carrier 22; the second coil part 6 and the magnetic component group 4 are capable of driving the carrier 22 to move in a third direction.

[0054] In this embodiment, the movable part 2 includes a bracket 20 and a carrier 22. The bracket 20 is movably connected to the fixed part 1 via conductive balls 7. The lens 3 is mounted on the carrier 22, and the carrier 22 is connected to the bracket 20. Under the action of the first coil part 5 on the bracket 20 and the magnetic component group 4, the bracket 20, the carrier 22, and the lens 3 on the carrier 22 can achieve image stabilization in at least one of the first and second directions. Furthermore, the second coil part 6 is mounted on the carrier 22. When the second coil part 6 is energized, under the action of the magnetic field of the magnetic component group 4 and the magnetic field of the second coil part 6, the second coil part 6 drives the carrier 22 to move relative to the fixed part 1 in a third direction, thereby achieving the focusing function of the lens 3.

[0055] like Figure 3 , Figure 9 and Figure 10As shown, according to some embodiments of this application, the fixing part 1 includes: a housing 10; a base 12 connected to the housing 10 and enclosing a cavity; a bracket 20, a carrier 22 and a lens 3 disposed in the cavity; a magnetic component group 4 disposed in the base 12; the bracket 20 and the carrier 22 are both movably connected to the base 12; wherein, a conductive ball 7 is disposed between the bracket 20 and the base 12.

[0056] In this embodiment, the fixing part 1 includes a housing 10 and a base 12. The base 12 is connected to the housing 10, thereby enclosing a cavity for mounting the bracket 20, the carrier 22, and the lens 3, protecting the lens 3. Simultaneously, the housing 10 can reduce electromagnetic interference generated by the lens module 100, as well as electromagnetic interference from other components. Both the bracket 20 and the carrier 22 are movably connected to the base 12. The magnetic component assembly 4 is disposed on the base 12. When the magnetic component assembly 4 interacts with the first coil part 5 and / or the second coil part 6, the magnetic component assembly 4 does not need to move. At least one of the bracket 20 and the carrier 22 moves relative to the base 12, thereby reducing the power consumption of the lens module 100.

[0057] It is understandable that the overall weight of the magnetic component assembly 4 is very large. Therefore, by placing the magnetic component assembly 4 on the immovable base 12 and placing the relatively lighter first coil part 5 on the bracket 20, the power consumption can be greatly reduced.

[0058] Specifically, the conductive ball 7 is disposed between the bracket 20 and the base 12, realizing the movable connection between the bracket 20 and the base 12, so that the bracket 20 can move relative to the base 12 in a first direction or a second direction.

[0059] Furthermore, the bracket 20 is provided with a first metal insert 200, and the base 12 is provided with a terminal 120 and a second metal insert 122.

[0060] Furthermore, the base 12 is provided with a mounting slot 124.

[0061] Furthermore, at least one magnetic piece 202 is provided on the bracket 20.

[0062] like Figure 3 As shown, according to some embodiments of this application, the lens module 100 further includes: a first spring 220 supported between the carrier 22 and the bracket 20; and a second spring 222 supported between the carrier 22 and the base 12. During the movement of the carrier 22 in a third direction, at least one of the first spring 220 and the second spring 222 is in a deformed state. The second coil portion 6 is connected to the second spring 222, and the second spring 222 is connected to the second metal insert 122 on the fixing portion 1.

[0063] In this embodiment, the lens module 100 further includes a first spring 220 and a second spring 222. The first spring 220 is supported between the carrier 22 and the bracket 20, and the second spring 222 is supported between the carrier 22 and the base 12. This allows the carrier 22 to be connected to the bracket 20 and the base 12 respectively via the first spring 220 and the second spring 222, and also enables the carrier 22 to move relative to the bracket 20 and the base 12 in a third direction via the first spring 220 and the second spring 222. When the second coil 6 is energized, it drives the carrier 22 to move in a third direction under the action of the magnetic field of the magnetic component group 4. During the movement of the carrier 22 in the third direction, at least one of the first spring 220 and the second spring 222 deforms, and can then be reset under the action of at least one of the first spring 220 and the second spring 222 after the second coil 6 is de-energized.

[0064] At the same time, the second coil part 6 is connected to the second spring piece 222, and the second spring piece 222 is connected to the second metal insert 122, so that the second coil part 6 and the second metal insert 122 are electrically connected.

[0065] According to some embodiments of this application, the housing 10 includes a ferromagnetic housing.

[0066] In this embodiment, the housing 10 includes a ferromagnetic housing, which can concentrate the magnetic field inside the ferromagnetic housing, reduce magnet leakage, and minimize magnetic interference and area on the magnetic devices surrounding the lens module 100. This effectively shortens the placement spacing between devices and saves overall space. Correspondingly, it also reduces the interference of the magnetic devices surrounding the lens module 100 on the devices inside the ferromagnetic housing.

[0067] Specifically, the ferromagnetic shell includes an iron shell.

[0068] like Figure 6 and Figure 12 As shown, according to some embodiments of this application, the lens module 100 further includes: a detection element 8, disposed on the movable part 2, for detecting the motion signal of the movable part 2; and a control element 9, connected to the fixed part 1, the control element 9 being connected to the detection element 8, and the control element 9 controlling the first coil part 5 to work according to the motion signal.

[0069] In this embodiment, the lens module 100 also includes a detection element 8, which is disposed on the movable part 2 and is used to detect the motion signal of the movable part 2. When the lens module 100 shakes, the detection element 8 can detect the shaking signal and then feed it back to the control element 9. The control element 9 controls the first coil part 5 to work. Under the action of the magnetic field of the first coil part 5 and the magnetic component group 4, the movable part 2 moves relative to the fixed part 1 in the opposite direction of shaking, thereby realizing the anti-shake function.

[0070] In a specific application, the detection element 8 is mounted on the bracket 20 and connected to the second metal insert 122 of the base 12 via the first metal insert 200 on the bracket 20, thereby realizing the electrical connection between the detection element 8 and the control element 9.

[0071] Furthermore, when the lens module 100 shakes, the detection unit 8 sends a shaking signal to the control unit 9, and the control unit 9 controls the first coil part 5 to be energized, so that the bracket 20 moves relative to the base 12 in the opposite direction of shaking.

[0072] Specifically, the detection component 8 includes a Hall element or other element capable of detecting motion signals, which include at least one of motion direction, motion displacement, and motion speed. The control component 9 includes a circuit board.

[0073] According to some embodiments of this application, a detection element 8 is disposed on the bracket 20 of the movable part 2; there are multiple detection elements 8, at least one detection element 8 detects the motion signal of the bracket 20 along a first direction, and at least one detection element 8 detects the motion signal of the bracket 20 along a second direction.

[0074] like Figure 1 As shown, in this embodiment, the active part 2 includes a bracket 20, and a detection element 8 is disposed on the bracket 20. The number of detection elements 8 is multiple, and at least one detection element 8 is disposed on the bracket 20 along a first direction and at least one detection element 8 is disposed on the bracket 20 along a second direction, so that the multiple detection elements 8 can detect both the shaking that occurs along the first direction and the shaking that occurs along the second direction, thereby improving the image stabilization performance of the lens module 100.

[0075] like Figure 1 As shown, according to some embodiments of this application, the first coil portion 5 includes at least two first coils 50 disposed opposite to each other along a first direction and at least two second coils 52 disposed opposite to each other along a second direction; the magnetic component group 4 includes at least two first magnetic components 40 disposed opposite to each other along a first direction and at least two second magnetic components 42 disposed opposite to each other along a second direction, wherein along a third direction, the first coils 50 are disposed opposite to the first magnetic components 40, and the second coils 52 are disposed opposite to the second magnetic components 42.

[0076] In this embodiment, the first coil section 5 includes a first coil 50 and a second coil 52. The number of first coils 50 is at least two. The at least two first coils 50 are arranged opposite each other along a first direction, and the at least two second coils 52 are arranged along a second direction. Correspondingly, the magnetic component group 4 includes at least two first magnetic components 40 and at least two second magnetic components 42. The at least two first magnetic components 40 are arranged opposite each other along the first direction, and the at least two second magnetic components 42 are arranged opposite each other along the second direction. This allows the at least two first coils 50 and the at least two first magnetic components 40 to be arranged opposite each other along a third direction, thereby achieving image stabilization along the first direction. The at least two second coils 52 and the at least two second magnetic components 42 are arranged opposite each other along a third direction, thereby achieving image stabilization along the second direction.

[0077] In practical applications, both the first magnetic component 40 and the second magnetic component 42 are magnets.

[0078] Specifically, at least one detection element 8 is configured to correspond to the first coil 50, and at least one detection element 8 is configured to correspond to the second coil 52.

[0079] According to some embodiments of this application, the second coil section 6 includes an annular coil connected end to end, and the outer wall of the carrier 22 is provided with an annular groove 224, in which the annular coil is disposed.

[0080] In this embodiment, the second coil section 6 includes an annular coil connected end to end, that is, there is only one second coil section 6. The second coil section 6 is arranged in the annular groove 224 along the circumference of the carrier 22, which improves the reliability of the connection between the second coil section 6 and the carrier 22.

[0081] According to embodiments of this application, an electronic device is also proposed, comprising: a lens module 100 as proposed in any of the above embodiments.

[0082] It should be noted that electronic devices include mobile phones, tablets, wearable devices, etc.

[0083] In practical applications, the structural stacking design of this application is as follows: the iron shell acts as a protective body to enclose the entire motor component; the upper and lower springs (such as the first spring 220 and the second spring 222) are connected to the carrier 22 to provide support and guidance; the AF (AutoFocus) coil and the OIS (Obstruction Image Stabilization) coil share a magnet to generate their respective required magnetic thrust; the bracket 20 is assembled with the coil to fix and protect the coil; the conductive ball 7 supports the OIS moving part 2 and plays a guiding and conductive role; the bracket 20 and the base 12 contain metal inserts (such as the first metal insert 200 in the bracket 20 and the second metal insert 122 in the base 12) for connecting the coil and the power supply.

[0084] The working principle of the moving coil OIS motor in this application is as follows:

[0085] The motor AF and OIS share a magnet. When the AF coil, OISX coil (specifically, the first coil 50 set along the first direction) and OISY coil (specifically, the second coil 52 set along the second direction) are energized, according to Ampere's left-hand rule, an Ampere force perpendicular to the magnetic field strength and the direction of the coil current will be generated. The OISX coil and the magnet will generate a thrust along the X direction, and the OISY coil and the magnet will generate a thrust along the Y direction. The Hall element senses the displacement of the shake, thereby pushing the motor carrier 22 to move in the opposite direction of the shake to make correction and achieve the effect of image stabilization. At the same time, the Ampere force generated by the interaction of the AF coil and the magnet is used to push the carrier 22 up and down to achieve focusing on the lens module 100.

[0086] Specifically, the X direction is the first direction, and the Y direction is the second direction.

[0087] Specifically, the components are: Metal shell: protects the internal components of the motor; Upper spring: supports and guides the carrier 22, connects the suspension wire, and acts as a conductor; Carrier 22: is used to mount the lens 3 and connects to the motor's AF and OIS; Support 20: assembles the coil, connects the spring and carrier 22; Conductive ball 7: guides, supports, and conducts electricity, maintaining the smooth movement of the carrier 22; Lower spring: supports and guides the carrier 22; Base 12: serves as the lower cover of the motor and assembles with the module, providing electrical conductivity; Magnet: provides a magnetic field; AF coil: when energized, the coil generates electromagnetic force with the magnet to push the carrier 22 in the direction of the force to achieve focusing; OIS coil: when energized, the coil generates electromagnetic force with the magnet to push the support 20 in the direction of the force to achieve image stabilization; Hall effect chip: receives changes in the magnetic field and detects the position of the OIS movable part.

[0088] Figure 3 , Figure 4 , Figure 5 and Figure 6 The sectional view and enlarged view clearly show the internal structure of the motor.

[0089] like Figure 5 The coil and Hall element are assembled with the bracket 20 and connected to the metal insert in the bracket 20. The conductive ball 7 contacts the metal insert in the bracket 20 and the base 12 respectively, and is connected vertically. Thus, the functional pins of the AF coil, OIS coil and Hall are led to the pins of the motor base 12 through the metal insert and the conductive ball 7 respectively, realizing dynamic conductivity, which facilitates the soldering of the motor to the module circuit board during subsequent module assembly.

[0090] like Figure 4The bracket 20 is designed with magnetic plates 202 on all four sides, which are attracted to the magnets on all four sides of the base 12, clamping the ball between the bracket 20 and the base 12. In this way, when the motor is performing OIS motion, the ball and the metal insert on the motor base 12 and the bracket 20 always maintain contact and conduction. Even in motion, the ball can be kept in a clamped state, allowing the ball to conduct continuously, making the reliability more stable and secure.

[0091] like Figure 8 As shown, the four coils are assembled with the bracket 20 and fixed together to form the movable part of the OIS.

[0092] like Figure 9 As shown, four magnets are assembled with the base 12. After assembly, the magnets, the base 12, and the iron shell are fixed together to form the OIS fixing part 1.

[0093] like Figure 10 As shown, the two sets of magnets and coils on opposite sides of the motor are symmetrically designed. The coils are assembled with the bracket 20, and the magnets are assembled with the base 12 and placed directly below the coils. The X coil and Y coil are placed perpendicularly. When current I in different directions is passed through the coils, under the action of magnetic field strength B, according to the left-hand rule, an electromagnetic thrust perpendicular to the direction of current I and magnetic field strength B can be generated, which can push the coils and brackets 20 to move along the direction of the force, thereby realizing the anti-shake function.

[0094] The left-hand rule is a law that determines the relationship between the directions of the Ampere force F (or motion) acting on a current-carrying conductor in a magnetic field, the direction of the magnetic induction intensity B, and the direction of the current I in the current-carrying conductor rod.

[0095] The lens module 100 proposed in this application reduces the interference range on other magnetic components of the whole machine; the components can be placed closer together, saving space in the whole machine; the magnetic motherboard bracket 20, magnetic pads and other components in the whole machine have less magnetic interference on the OIS motor; the motor can be placed more flexibly in the whole machine; and the matching freedom and tolerance between multiple camera motors in the whole machine are greater.

[0096] Compared with existing OIS motor technology, the single-layer ball OIS + spring AF motor structure of the moving coil and static magnet of this application can not only improve magnetic interference, but also solve the problems of small load and easy wire breakage of the suspension wire OIS motor, as well as the problem of large height dimension of the double-layer ball OIS motor.

[0097] like Figure 11As shown, it is understandable that existing suspension wire OIS motor technology generally uses a moving magnet and a stationary coil, and the motor casing is generally not made of magnetic material. Smart terminals such as mobile phones typically have multiple camera motors, as well as many magnetic steel sheets or other magnetic components. Therefore, a large safety distance is necessary to prevent magnetic interference. This application uses a single-layer ball bearing OIS + spring-loaded AF (focusing) motor solution with a moving coil and a stationary magnet. Furthermore, the motor casing uses a magnetic material, minimizing magnetic interference and significantly reducing the safety distance, thus saving on the motor's proportion in the overall device. Existing OIS motors generally require a distance of about 8mm between themselves and surrounding magnetic components; this application achieves a distance of only about 3mm between the non-magnetic side of the motor and the surrounding magnetic components.

[0098] In this application, the OIS motor design using magnetically conductive materials for the motor casing can concentrate the magnetic field inside the casing, reducing magnet leakage and minimizing the area of ​​magnetic interference affecting surrounding magnetic components. This effectively reduces the spacing between components, saving overall space. Conversely, the magnetic interference from surrounding magnetic components to the motor is minimal. The improvements are summarized as follows: less magnetic leakage reduces the interference range on other magnetic components, allowing for closer placement and further saving space; less magnetic leakage also minimizes the impact of components like the magnetic motherboard bracket 20 and magnetic pads on the OIS motor; less magnetic leakage increases the flexibility of motor placement within the device and significantly improves the tolerance for motor matching between multiple cameras; compared to a suspension wire OIS motor, a ball bearing OIS motor effectively solves the problem of wire breakage and can support a larger load.

[0099] 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.

[0100] 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 lens module, characterized in that, include: The component includes a fixed part and a movable part, wherein the movable part is capable of moving relative to the fixed part along a first direction and a second direction. The lens is located in the aforementioned movable part; A magnetic component assembly is provided on the fixing part; A first coil portion is disposed on the movable portion, and the first coil portion and the magnetic component assembly are disposed correspondingly along a third direction, which is perpendicular to the plane containing the first direction and the second direction. When the first coil section is energized, the first coil section and the magnetic component group drive the movable section to move along at least one of the first direction and the second direction. The lens module also includes conductive balls disposed between the movable part and the fixed part. The conductive balls are electrically connected to the movable part and the fixed part. The movable part is movably connected to the fixed part through the conductive balls, so that the movable part can move relative to the fixed part in at least one of the first direction and the second direction. The third direction is the axis of the lens; The lens module also includes: A second coil section is provided on the movable section. The second coil section is located within the space enclosed by the magnetic component group. When the second coil section is energized, the second coil section and the magnetic component group drive the movable section to move along the third direction. The movable part is provided with at least one magnetic piece, which is attracted to the magnetic component assembly so that the movable part and the fixed part clamp the conductive ball; The magnetic clasp on the movable part is disposed on the side of the movable part away from the fixed part, and a limiting groove is provided on the movable part, with the magnetic clasp disposed in the limiting groove.

2. The lens module according to claim 1, wherein, The movable part is provided with a first metal insert, and the first coil part is electrically connected to the first metal insert; The fixing part is provided with a terminal and a second metal insert. The second metal insert is electrically connected to the terminal. The conductive ball is electrically connected between the first metal insert and the second metal insert. The second coil part is connected to the second metal insert.

3. The lens module according to claim 1, characterized in that, The fixing part is provided with a mounting groove, and the conductive ball is movably disposed in the mounting groove.

4. The lens module according to claim 1, characterized in that, The activity department includes: A bracket is movably connected to the fixing part. A first coil part is disposed on the bracket. The first coil part and the magnetic component assembly can drive the bracket to move in at least one of the first direction and the second direction. The bracket is movably connected to the fixing part through the conductive ball. The carrier is connected to the bracket, and the lens and the second coil are disposed on the carrier. The second coil and the magnetic component assembly can drive the carrier to move along the third direction.

5. The lens module according to claim 4, characterized in that, The fixing part includes: case; The base is connected to the housing and encloses a cavity. The bracket, the carrier, and the lens are disposed within the cavity. The magnetic component assembly is disposed on the base. Both the bracket and the carrier are movably connected to the base. The conductive ball bearing is disposed between the bracket and the base.

6. The lens module according to claim 5, characterized in that, Also includes: The first spring is supported between the carrier and the bracket; The second spring is supported between the carrier and the base. During the movement of the carrier along the third direction, at least one of the first spring and the second spring is in a deformed state. The second coil part is connected to the second spring, and the second spring is connected to the second metal insert on the fixing part.

7. The lens module according to any one of claims 1 to 6, characterized in that, The first coil section includes: at least two first coils disposed opposite each other along the first direction and at least two second coils disposed opposite each other along the second direction; The magnetic component group includes: at least two first magnetic components and at least two second magnetic components arranged opposite to each other along the first direction and arranged opposite to each other along the second direction. Along the third direction, the first coil is arranged opposite to the first magnetic component and the second coil is arranged opposite to the second magnetic component.

8. The lens module according to any one of claims 1 to 6, characterized in that, The second coil section includes an annular coil connected end to end, and the outer wall of the carrier is provided with an annular groove, in which the annular coil is disposed.

9. An electronic device, characterized in that, include: The lens module as described in any one of claims 1 to 8.

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