Camera motor, camera module and electronic equipment

Abstract

The invention relates to the technical field of camera shooting of electronic equipment, in particular to a camera motor, a camera module and electronic equipment. The objective of the invention is to solve the technical problem that lubricating grease overflows to affect a camera module. The embodiment of the invention provides a camera motor which comprises a rotor and a stator, the stator is connected with the rotor through a kinematic pair, the kinematic pair is lubricated through lubricating grease, a first groove is formed in the rotor, the flow speed of the lubricating grease is gradually reduced when the lubricating grease flows on the surface of the rotor, and the maximum distance between the first groove and the kinematic pair is smaller than or equal to 10 mm. According to the technical scheme, the lubricating grease can smoothly flow to the position near the first groove, the width of the first groove is 0.01 mm-0. 3 mm, the capillary effect can be guaranteed, the overflowing lubricating grease can enter the first groove under the capillary effect, and the situation that the lubricating grease overflows to other positions and influences the camera module is avoided.

Description

Technical Field

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

[0002] A camera motor typically consists of a mover and a stator, which are connected by a kinematic pair, allowing the mover to move relative to the stator. To reduce friction between the mover and stator, grease is usually added to the kinematic pair; however, grease can easily overflow, affecting the camera module. Summary of the Invention

[0003] This application provides a camera motor, camera module, and electronic device that can prevent grease from overflowing and avoid affecting the camera module.

[0004] In a first aspect, embodiments of this application provide a camera motor, including a mover and a stator, the stator and the mover being connected by a kinematic pair, the kinematic pair being lubricated by grease, the mover being provided with a first groove, the maximum distance between the first groove and the kinematic pair being less than or equal to 10mm, and the width of the first groove being 0.01mm-0.3mm.

[0005] Because the grease will encounter resistance when flowing on the surface of the moving part, the flow rate of the grease will gradually decrease. The maximum distance between the first groove and the moving part is less than or equal to 10mm, which can ensure that the grease can flow smoothly to the vicinity of the first groove. The width of the first groove is 0.01mm-0.3mm, which can ensure the effect of capillary effect, so that the overflowing grease can enter the first groove under the action of capillary effect, and prevent the grease from overflowing to other places and affecting the camera module.

[0006] In some embodiments that may include the above embodiments, the mover includes a first surface, and a first groove is disposed on the first surface. A first channel is disposed on the mover, and a second channel is disposed on the stator. The first channel and the second channel communicate with each other, and the center lines of the first channel and the second channel are perpendicular to the first surface. The first channel is used to mount a lens. The first groove is located between the kinematic pair and the first channel.

[0007] Because grease has low surface energy, grease depositing on the first channel reduces the coefficient of friction of the first channel, weakening the connection between the first channel and the lens and affecting the normal operation of the camera module. The first groove, located between the moving pair and the first channel, can drain excess grease from the moving pair, preventing it from depositing on the first channel and ensuring the connection strength between the lens and the first channel, thereby guaranteeing the normal operation of the camera module.

[0008] In some embodiments that may include the above embodiments, the depth of the first groove is 0.01mm-0.3mm.

[0009] The greater the depth of the first groove, the larger its capacity, allowing it to hold more grease. However, the depth of the first groove is also limited by the thickness of the mover and the position of other components on the mover. Therefore, an appropriate depth can be selected based on actual needs and the specific structure of the mover.

[0010] In some embodiments that may include the above embodiments, the included angle between the two opposite groove walls of the first groove is 15°-145°.

[0011] The size of the included angle also affects the effectiveness of the capillary effect. For example, when the included angle is small, the capillary effect is more significant, and the grease enters the first groove at a faster rate; when the included angle is too small or too large, the effect of the capillary effect will be reduced, and the grease will enter the first groove at a slower rate. Therefore, an appropriate included angle can be selected according to actual needs.

[0012] In some embodiments that may include the above embodiments, the mover is further provided with a first protrusion, which is disposed on the first surface and located between the first groove and the first channel.

[0013] The first protrusion further prevents grease from flowing towards the first channel, ensuring the normal operation of the camera module. Simultaneously, the first protrusion does not affect the strength of the mover, preventing stress concentration in that part of the mover from occurring near the edge of the first surface where the first groove is located.

[0014] In some embodiments that may include the above embodiments, the thickness of the first protrusion is 0.01mm-0.2mm.

[0015] When the mover moves relative to the stator, an excessively thick first protrusion may cause a collision between the mover and the stator, affecting the movement of the mover and thus the use of the camera module. The thickness of the first protrusion 71 is 0.01mm-0.2mm, which can ensure the normal movement of the mover while preventing grease from overflowing into the first channel, thereby ensuring the normal use of the camera module.

[0016] In some embodiments that may include the above-described embodiments, the stator has a second surface facing the first surface, and the first and second surfaces are parallel to the direction of movement of the mover. A kinematic pair is disposed between the first and second surfaces. A second groove is provided on the second surface, and the second groove is located between the kinematic pair and the second channel.

[0017] The second surface has a second groove to prevent grease from overflowing, seeping into the second channel, and then flowing into the first channel. The second groove also prevents grease from splashing from the second surface onto the first channel when the camera module shakes, thus avoiding any impact on the camera module and ensuring its normal operation.

[0018] In some embodiments that may include the above embodiments, the stator is further provided with a second protrusion, which is disposed on the second surface and located between the second groove and the second channel.

[0019] The second protrusion further prevents grease from flowing into the second channel. At the same time, the second protrusion does not affect the strength of the stator, preventing the second groove from approaching the edge of the second surface and causing stress concentration in that part of the stator.

[0020] In some embodiments that may include the above embodiments, the kinematic pair includes balls, a receiving groove is provided on the second surface, a portion of the balls are disposed in the receiving groove, and the balls are in contact with the first surface. The stator also has a third groove, one end of which communicates with the receiving groove.

[0021] Ball bearings can reduce the coefficient of friction during the movement of the moving part, resulting in higher control precision for image stabilization, reducing lens shake, and improving the image stabilization effect of the camera module.

[0022] The stator also has a third groove, one end of which connects to the receiving groove. Since some of the balls are located in the receiving groove, grease can be directly added to the receiving groove and come into contact with the balls, further reducing the coefficient of friction during the movement of the mover and further improving the image stabilization effect of the camera module.

[0023] The third groove is connected to the receiving groove, which can introduce grease into the third groove and guide it to other positions on the stator, thus preventing the grease from precipitating towards the second channel.

[0024] In some embodiments that may include the above embodiments, the stator further includes a limiting portion surrounding the outer periphery of the mover, and the other end of the third groove is located on the limiting portion.

[0025] Since there is frequent relative movement between the mover and the stator, the limiting part is set around the outer periphery of the mover to prevent the mover from colliding with the stator or surrounding structure due to excessive displacement (such as accidental drop), thus protecting the precision components. At the same time, the limiting part can also ensure that the mover is within the preset calibration range, avoiding optical axis deviation caused by excessive displacement and maintaining anti-shake accuracy.

[0026] The other end of the third groove is located on the limiting part. The grease can be guided to the limiting part through the third groove, so that the grease can come into further contact with the limiting part, reduce the friction between the limiting part and the moving part, and reduce the dust generation of the limiting part.

[0027] In some embodiments that may include the above embodiments, a fourth groove is provided on the limiting part, and the fourth groove communicates with the third groove.

[0028] The fourth groove is connected to the third groove, allowing grease to flow into the third groove and be guided to the fourth groove. The fourth groove is located on the limiting part, facilitating contact between the grease and the limiting part and improving grease extraction efficiency.

[0029] In some embodiments that may include the above embodiments, the mover is provided with a mounting groove for mounting a lens, and the kinematic pair includes a sliding shaft disposed on the stator, with the mover slidably connected to the sliding shaft. The mover includes a third surface located between the mounting groove and the sliding shaft, the centerline of the sliding shaft being perpendicular to the third surface, and a first groove disposed on the third surface.

[0030] The moving part is slidably connected to the sliding shaft. Lubricant can be placed between the moving part and the sliding shaft to reduce the friction between them, making the moving part slide more smoothly along the sliding shaft, thereby improving the focusing effect of the camera module.

[0031] The first groove is set on the third surface, and the third surface is located between the mounting groove and the sliding shaft. The grease overflowing between the sliding shaft and the moving part will enter the first groove under the action of capillary effect, preventing the grease from flowing to the mounting groove and affecting the connection strength between the mounting groove and the lens, thereby preventing the grease from affecting the camera module.

[0032] In some embodiments that may include the above embodiments, the portion of the first groove near the edge of the mover has an opening.

[0033] Because the opening is close to the edge of the mover, after the grease flows into the first groove, it can flow to the opening under the guidance of the first groove and flow out from the opening, so that the grease can flow to a position away from the mover and avoid the grease affecting the connection between the mover and the lens.

[0034] In some embodiments that may include the above embodiments, the kinematic pair includes a sliding part, the mover is connected to the sliding part, the stator is provided with a sliding groove, the sliding part is slidably connected to the sliding groove, and the extension direction of the first groove is parallel to the movement direction of the mover.

[0035] To reduce friction between the mover and stator and ensure the sliding effect of the mover, grease is usually applied between the sliding part and the groove. The extension direction of the first groove is parallel to the movement direction of the mover, which can prevent the grease from flowing from the sliding part towards the mover and affecting it, thereby preventing the grease from affecting the camera module.

[0036] In some embodiments that may include the above embodiments, the mover includes a baffle.

[0037] The moving part includes a baffle. By adjusting the moving direction and position of the baffle, the performance of the camera module can be adjusted. A first groove is provided on the moving part. The first groove can prevent overflowing grease from flowing to the side of the baffle away from the slide groove, ensuring the normal use of the baffle. It also prevents grease from flowing to the baffle, which could cause grease to splash or scrape onto the lens when the baffle covers the lens, affecting the lens's use, thus ensuring the normal operation of the camera module.

[0038] In some embodiments that may include the above embodiments, the mover is provided with a through hole, and the mover also includes a connector that passes through the through hole, and the first groove is located on the side of the connector away from the kinematic pair.

[0039] Because the connector passes through the through hole, there is a gap between the connector and the mover. Excess grease will flow towards the mover through the gap. The first groove is located on the side of the connector away from the moving pair. Under the action of capillary effect, the grease passing through the gap is introduced into the first groove, preventing the grease from continuing to flow towards the mover and ensuring the normal use of the mover.

[0040] Secondly, this application provides a camera module including a lens, a circuit board, and the aforementioned camera motor. The lens is mounted on the camera motor, and the circuit board is located on the side of the camera motor away from the lens.

[0041] The camera module provided in this application includes the camera motor in any of the above embodiments, so both can solve the same technical problem and achieve the same technical effect.

[0042] Thirdly, embodiments of this application provide an electronic device, including a motherboard and the aforementioned camera module, with the circuit board electrically connected to the motherboard.

[0043] The electronic device provided in this application includes the camera module in any of the above embodiments, so both can solve the same technical problem and achieve the same technical effect. Attached Figure Description

[0044] Figure 1 Schematic diagram of the structure of the electronic device provided in the embodiments of this application Figure 1 ;

[0045] Figure 2 Schematic diagram of the structure of the electronic device provided in the embodiments of this application Figure 2 ;

[0046] Figure 3 An exploded view of the electronic device provided in the embodiments of this application;

[0047] Figure 4 An exploded view of the camera module provided in the embodiments of this application;

[0048] Figure 5 An exploded view of the camera motor provided in an embodiment of this application;

[0049] Figure 6 Exploded views of the mover and stator provided in the embodiments of this application;

[0050] Figure 7 A bottom view of the mover provided in an embodiment of this application;

[0051] Figure 8 Provided for the embodiments of this application Figure 7 Enlarged view of point A in the middle;

[0052] Figure 9 A top view of the stator provided in an embodiment of this application;

[0053] Figure 10 for Figure 8 CC-direction section of the first groove in Figure 1 ;

[0054] Figure 11 for Figure 8 CC-direction section of the first groove in Figure 2 ;

[0055] Figure 12 This is a schematic diagram of the structure of the first or second groove provided in the embodiments of this application;

[0056] Figure 13 This is a schematic diagram of a moving part with a blind hole provided in an embodiment of this application;

[0057] Figure 14 for Figure 6 Enlarged view of point B in the middle;

[0058] Figure 15 A schematic diagram of the structure of the camera motor provided in the embodiments of this application. Figure 1 ;

[0059] Figure 16 A schematic diagram of the structure of the camera motor provided in the embodiments of this application. Figure 2 ;

[0060] Figure 17 This is a schematic diagram of the structure of the camera module provided in the embodiments of this application;

[0061] Figure 18 A schematic diagram of the structure of the camera motor provided in the embodiments of this application. Figure 3 ;

[0062] Figure 19 A schematic diagram of a camera motor equipped with a connector, provided for an embodiment of this application;

[0063] Figure 20 A side view of a camera motor with a connector provided in an embodiment of this application.

[0064] Explanation of reference numerals in the attached figures:

[0065] 10: Electronic device; 11: Display screen; 12: Mid-frame; 13: Back cover; 131: Through hole; 14: Motherboard; 20: Camera module; 21: Lens; 22: Circuit board; 30: Camera motor; 31: Housing; 32: Mover; 321: Mounting slot; 322: Opening; 323: Through hole; 33: Stator; 331: Slide groove; 34: Base; 35: Kinematic pair; 36: Blind hole; 37: Oil collection tank; 38: Magnet; 39: Coil; 40: Limiting part; 41: First gauge Surface; 42: Second surface; 421: Receiving groove; 43: Third surface; 44: Fourth surface; 51: First groove; 511: Main groove; 512: Branch groove; 52: Second groove; 53: Third groove; 54: Fourth groove; 55: Fifth groove; 61: First channel; 62: Second channel; 71: First protrusion; 72: Second protrusion; 73: Third protrusion; 74: Fourth protrusion; 81: Ball bearing; 82: Sliding shaft; 83: Sliding part; 84: Baffle; 85: Connector. Detailed Implementation

[0066] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0067] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0068] Furthermore, in the embodiments of this application, directional terms such as "up," "down," "left," "right," "horizontal," and "vertical" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0069] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, an electrical connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0070] Please refer to Figure 1 and Figure 2 This application provides an electronic device 10, which is a type of electronic device 10 with a shooting function. The electronic device 10 in this application embodiment may include mobile phones, tablet computers, laptop computers, smart home devices, smart wearable devices (e.g., smartwatches, smart bracelets, smart glasses, smart helmets), virtual reality (VR) electronic devices 10, augmented reality (AR) electronic devices 10, etc.

[0071] The electronic device 10 provided in this application embodiment may include a display screen 11, a rear shell 13 located on the back of the display screen 11 (distributed opposite to the display surface of the display screen 11), and a middle frame 12 located between the display screen 11 and the rear shell 13. The display screen 11 and the rear shell 13 may be attached to the middle frame 12, and the middle frame 12 may support the display screen 11.

[0072] This application does not limit the display screen 11. For example, the display screen 11 can be a liquid crystal display (LCD), an organic light emitting diode (OLED) display, a micro light emitting diode (MicroLED) display, or a quantum dot light emitting diode (QLED) display, etc.

[0073] Please refer to Figure 3 The electronic device 10 also includes a motherboard 14 and a processor, with the motherboard 14 positioned between the mid-frame 12 and the rear shell 13. Figure 2(As shown). A processor is installed on the motherboard 14, which can provide display data to the display screen 11 to drive the display screen 11 to display images.

[0074] For example, the processor described above may include one or more processing units, such as: an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0075] In addition, the aforementioned electronic device 10 may also include a gyroscope sensor, a Hall sensor, an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, a headphone jack, a sensor module, buttons, and a camera, etc., which are electrically connected to the processor.

[0076] Continue to refer to Figure 2 To enable the electronic device 10 to perform a shooting function, the electronic device 10 provided in this application embodiment further includes a camera module 20. The camera module 20 can be a front-facing camera module or a rear-facing camera module. The front-facing camera module can be located on the back of the display screen 11, with its photosensitive surface located on one side of the display surface of the display screen 11. The rear-facing camera module can be disposed between the mid-frame 12 and the rear shell 13, with its photosensitive surface located on the back of the electronic device 10.

[0077] Continue to refer to Figure 2 In some embodiments, the front-facing camera module or the rear-facing camera module may include multiple camera modules 20. Taking the rear-facing camera module as an example, the rear cover 13 may have a through hole 131 to expose a portion of the camera module 20. The electronic device 10 may also include a lens cover, which is fastened to the camera module 20 to protect the camera module 20.

[0078] Please refer to Figure 4The camera module 20 provided in this application embodiment may include a lens 21 and a camera motor 30. This application embodiment does not limit the camera motor 30 and the lens 21. For example, in embodiments where the camera module 20 includes a telephoto camera module, a standard camera module, etc., the lens 21 may be a lens. In embodiments where the camera module 20 includes a periscope telephoto camera module, the lens 21 may be a lens or a prism.

[0079] In some embodiments, the camera module 20 further includes a variable aperture, which can be disposed on the side of the lens 21 opposite to the camera motor 30. The variable aperture includes a driving device and multiple blades, the driving device being used to drive the blades to adjust the size of the light-gathering aperture formed by the multiple blades, thereby adjusting the amount of light entering the camera.

[0080] To enable the light incident on the camera module 20 to undergo photoelectric conversion to generate image information, the camera motor 30 may further include a circuit board 22 and an image sensor. The circuit board 22 is disposed on the side of the camera motor 30 away from the lens 21. The image sensor is disposed on the circuit board 22 and is electrically connected to the circuit board 22. After receiving the light signal from the camera motor 30, the image sensor can display a clear image.

[0081] For example, the image sensor can be a charge-coupled device (CCD) or a complementary metal-oxide semiconductor (CMOS). This image sensor is positioned at the focal plane of the camera module 20, enabling it to receive the light image of the subject converged by the lens 21. The image sensor may include multiple photosensitive units, each of which converts the received light amount into an electrical signal proportional to that amount of light.

[0082] Circuit board 22 can be connected to motherboard 14 via flexible printed circuit (FPC). Figure 3 (As shown) The connection transmits electrical signals to the motherboard 14, and then to the processor through the traces on the motherboard 14, so that the images captured by the camera module 20 can be displayed on the display screen 11.

[0083] The camera motor 30 can be used to drive the lens 21 to move along the optical axis to achieve automatic focusing of the lens 21, or it can also be used to drive the lens 21 to move in a plane perpendicular to the optical axis to achieve image stabilization compensation of the camera module 20; or it can not only achieve automatic focusing of the lens 21, but also achieve image stabilization compensation.

[0084] In an embodiment where the camera module 20 includes two lenses 21, the parameters of the two lenses 21 are different, and the camera motor 30 can also select the lens 21 used by the camera module 20 to adjust the generated image.

[0085] Please refer to Figure 5 and Figure 6 The camera motor 30 includes a housing 31, a mover 32, a stator 33, and a base 34. The stator 33 and the mover 32 are disposed within the space enclosed by the housing 31 and the base 34. The stator 33 and the mover 32 are connected by a kinematic pair 35, allowing the mover 32 to move relative to the stator 33. A lens 21 is mounted on the mover 32. Figure 4 In the embodiment shown, focusing or image stabilization compensation of the lens 21 can be achieved by controlling the direction and distance of the movement of the mover 32 relative to the stator 33.

[0086] In an embodiment where the camera module 20 includes two lenses 21, the mover 32 can block the lenses 21, thus protecting the camera module 20. Figure 4 (As shown) Select the appropriate lens 21 to generate the corresponding image.

[0087] Because of the friction between the mover 32 and the stator 33, the accuracy of the movement of the mover 32 relative to the stator 33 is affected, thus affecting the focusing, image stabilization, or lens 21 obstruction effects, and consequently the quality of the generated image. To improve the imaging quality of the camera module 20, grease can be added to the motion pair 35. The grease can reduce the friction between the mover 32 and the stator 33, ensuring the effectiveness of focusing, image stabilization, or lens 21 obstruction.

[0088] However, grease can easily overflow, affecting the camera module 20. Here, kinematic pair 35 refers to the movable connecting part that is in direct contact with the mover 32 and stator 33 and can generate relative motion.

[0089] Please refer to Figure 6 , Figure 7 and Figure 8 , Figure 6 This is an exploded view of the mover 32 and stator 33 after removing some structures. The camera motor 30 provided in this embodiment includes a stator 33 and a mover 32, which are connected by a kinematic pair 35. The kinematic pair 35 is lubricated with grease. A first groove 51 is provided on the mover 32. The maximum distance L between the first groove 51 and the kinematic pair 35 is less than or equal to 10 mm, and the width D1 of the first groove 51 is 0.01 mm to 0.3 mm. The first groove 51 is located on the outer periphery of the kinematic pair 35.

[0090] The maximum distance L between the first groove 51 and the kinematic pair 35 refers to the maximum distance between the nearest groove wall of the first groove 51 and the kinematic pair 35. This application embodiment does not limit the shape of the first groove 51. For example, the first groove 51 can be a straight line or a curved line.

[0091] The number of first grooves 51 is not limited in this application embodiment. For example, the number of first grooves 51 can be one, or the number of first grooves 51 can be multiple. In embodiments where the number of first grooves 51 is multiple, the multiple first grooves 51 are arranged at intervals.

[0092] As the grease encounters resistance when flowing on the surface of the mover 32, the flow rate of the grease will gradually decrease. The maximum distance L between the first groove 51 and the moving pair 35 is less than or equal to 10 mm, which can ensure that the grease can flow smoothly to the vicinity of the first groove 51, so that the grease can move into the first groove 51 under the capillary effect.

[0093] The width D1 of the first groove 51 is 0.01mm-0.3mm. For example, the width D1 of the first groove 51 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, or 0.3mm. The width of the first groove 51 is the distance between two opposite groove walls of the first groove 51 in a plane perpendicular to the optical axis.

[0094] Understandably, the width D1 of the first groove 51 will affect the effect of the capillary effect. If the width D1 of the first groove 51 is too wide, the capillary effect will be poor and the grease will have difficulty entering the first groove 51. If the width D1 of the first groove 51 is too narrow, the viscosity of the grease will be too high and it will have difficulty entering the first groove 51.

[0095] Therefore, the width D1 of the first groove 51 is 0.01mm-0.3mm, which ensures that the grease can smoothly enter the first groove 51 under the action of capillary effect, and avoids the grease overflowing to other positions, thus protecting the camera module 20. Figure 4 (As shown) will have an impact.

[0096] The moving part 32 is provided with a first groove 51. The maximum distance L between the first groove 51 and the moving part 35 is less than or equal to 10mm, which can ensure that the overflowing grease can flow smoothly to the vicinity of the first groove 51. The width D1 of the first groove 51 is 0.01mm-0.3mm, which can ensure a good capillary effect. The grease can smoothly enter the first groove 51 under the action of capillary effect, avoiding the grease overflowing to other places and affecting the camera module 20.

[0097] Here, capillary effect refers to the tendency of a grease surface to flatten if it is curved. When the grease surface is concave, it exerts a pulling force on the grease; when the grease surface is convex, it exerts a pressure on the grease. When the grease flows to the edge of the first groove 51, it is constrained by the groove wall of the first groove 51, and the surface of the grease becomes convex, pushing the grease into the first groove 51.

[0098] Continue to refer to Figure 6 and Figure 7 In some implementations, the camera module 20 ( Figure 4 (As shown) includes telephoto camera modules, standard camera modules, etc., with the mover 32 serving as the carrier and the stator 33 as the holder. The camera motor 30 may include a focusing drive structure and an image stabilization drive structure.

[0099] For example, the focusing drive structure may include a magnet and a coil, one of which is disposed on the mover 32 and the other on the stator 33. Alternatively, one of the magnet and the coil may be disposed on the stator 33 and the other on the base 34. Figure 5 As shown in the figure. The Ampere force generated by the magnet and the coil can make the mover 32 move up and down along the optical axis to achieve focusing.

[0100] The anti-shake drive structure may also include a magnet and a coil, one of which is disposed on the mover 32 and the other on the stator 33. Magnet 38 is disposed on the mover 32, and coil 39... Figure 5 (As shown) is mounted on the stator 33. The Ampere force of the magnet 38 and the coil 39 allows the mover 32 to move in a plane perpendicular to the optical axis, thus achieving anti-shake.

[0101] Continue to refer to Figure 6 and Figure 7 , Figure 6 The dashed lines in the diagram represent the center lines of the first channel 61 and the second channel 62. Figure 7 The solid circle in the diagram represents the center line of the first channel 61 and the second channel 62. In the above embodiment, the mover 32 includes a first surface 41, and a first groove 51 is disposed on the first surface 41. The mover 32 is provided with the first channel 61, and the stator 33 is provided with the second channel 62. The first channel 61 and the second channel 62 are connected, and the center line of the first channel 61 and the second channel 62 is perpendicular to the first surface 41. The first channel 61 is used to mount the lens 21. Figure 4 (As shown).

[0102] It is understandable that the lens 21 is mounted on the first channel 61, and the center lines of the first channel 61 and the second channel 62 coincide with the optical axis.

[0103] Because the surface energy of grease is relatively low, grease deposited on the first channel 61 will reduce the coefficient of friction of the first channel 61, thereby reducing the connection strength between the first channel 61 and the lens 21, and affecting the camera module 20. Figure 4 (As shown) is working normally.

[0104] The first groove 51 is located between the motion pair 35 and the first channel 61. The first groove 51 can drain the grease that overflows from the motion pair 35, prevent the grease from being deposited on the first channel 61, ensure the connection strength between the lens 21 and the first channel 61, and thus ensure the normal operation of the camera module 20.

[0105] Please refer to Figure 8 In some embodiments, there may be multiple first grooves 51, which are spaced apart between the motion pair 35 and the first channel 61 along the direction from the motion pair 35 to the first channel 61.

[0106] The number of first grooves 51 is multiple, which can increase the capacity of the first grooves 51, ensure that the grease flows into the first grooves 51, and prevent the grease from flowing into the first channel 61, which would affect the connection strength between the first channel 61 and the lens 21.

[0107] Continue to refer to Figure 8 In some embodiments, oil collecting grooves 37 are provided at both ends of the first groove 51, and the oil collecting grooves 37 are connected to the first groove 51. The embodiments of this application do not limit the shape of the oil collecting grooves 37. For example, the cross-section of the oil collecting grooves 37 can be circular, triangular, rectangular, etc.

[0108] The oil collection groove 37 can increase the capacity of the first groove 51, accommodating more grease. At the same time, the oil collection groove 37 can change the flow direction of the grease, guiding it to other locations.

[0109] Optionally, the oil collection groove 37 can be located on the side of the first groove 51 facing the moving pair 35. Positioning the oil collection groove 37 on the side of the first groove 51 facing the moving pair 35 can prevent the lubricating grease in the oil collection groove 37 from being exposed to external forces (e.g., the camera module 20). Figure 4 (As shown) Splashing out under the influence of vibration, accidental drop, etc., can affect the camera module 20.

[0110] The embodiments of this application do not limit the number of kinematic pairs 35. For example, the number of kinematic pairs 35 can be one, or the number of kinematic pairs 35 can be multiple. Having multiple kinematic pairs 35 can improve the stability of the movement of the mover 32 relative to the stator 33.

[0111] In embodiments where there are multiple kinematic pairs 35, the first groove 51 is comprised in multiple sets, with each set including at least one (or more) first grooves 51. In embodiments where an oil collection groove 37 is provided on the mover 32, the oil collection groove 37 is also comprised in multiple sets.

[0112] Continue to refer to Figure 8 In some embodiments, an oleophobic coating is provided on the first surface 41 between the first groove 51 and the first channel 61. This application does not limit the material of the oleophobic coating; for example, the oleophobic coating may be a fluorosilane coating, a fluorocarbon coating, etc.

[0113] Because the oleophobic coating contains a large number of fluorine atoms, the fluorine atoms can reduce the surface energy of the first surface 41. The grease has a low surface tension, and because the surface energy of the first surface 41 is reduced, the grease cannot wet the first surface 41 and shrinks into beads and rolls off.

[0114] The oleophobic coating allows the first surface 41 to repel grease, preventing grease from flowing through the first surface 41 to the first channel 61, thus further preventing grease overflow.

[0115] Continue to refer to Figure 7 and Figure 8 In some embodiments, the mover 32 is further provided with a first protrusion 71, which is disposed on the first surface 41 and located between the first groove 51 and the first channel 61.

[0116] The first protrusion 71 can further prevent the grease from flowing towards the first channel 61, ensuring the camera module 20 ( Figure 4 (As shown) for normal use. At the same time, the first protrusion 71 will not affect the strength of the mover 32, and will prevent the first groove 51 from getting close to the edge of the first surface 41, which would cause stress concentration in that part of the mover 32.

[0117] In the above embodiments, the thickness of the first protrusion 71 is 0.01mm-0.2mm. For example, the thickness of the first protrusion 71 can be 0.01mm, 0.1mm, 0.15mm, or 0.2mm. The thickness of the first protrusion 71 is the distance between the upper surface of the first protrusion 71 and the first surface 41 in a direction parallel to the optical axis.

[0118] Due to stator 33 ( Figure 6 As shown, the first surface 41 is close to the motion pair 35, and the distance between the first surface 41 and the stator 33 is relatively small. The thickness of the first protrusion 71 is affected by the distance between the mover 32 and the stator 33. If the thickness of the first protrusion 71 is too large, it will cause the distance between the mover 32 and the stator 33 to shorten.

[0119] For example, when the mover 32 moves relative to the stator 33, if the first protrusion 71 is too thick, it may cause a collision between the mover 32 and the stator 33, affecting the movement of the mover 32 and thus affecting the use of the camera module 20.

[0120] The thickness of the first protrusion 71 is 0.01mm-0.2mm, which can ensure the normal movement of the mover 32 while preventing the grease from overflowing into the first channel 61, thereby ensuring the normal use of the camera module 20.

[0121] Continue to refer to Figure 8 and Figure 9 In the above embodiment, the stator 33 has a second surface 42 facing the first surface 41. The first surface 41 and the second surface 42 are parallel to the moving direction of the mover 32, and the kinematic pair 35 is disposed between the first surface 41 and the second surface 42.

[0122] For example, the mover 32 can move in a direction perpendicular to the optical axis to achieve anti-shake. The first surface 41 is a plane on the mover 32 perpendicular to the optical axis, and the second surface 42 is a surface on the stator 33 perpendicular to the optical axis. The kinematic pair 35 is disposed between the first surface 41 and the second surface 42, which can realize the movement of the mover 32 relative to the stator 33.

[0123] A second groove 52 is provided on the second surface 42, and the second groove 52 is located between the kinematic pair 35 and the second channel 62. It is understood that when the kinematic pair 35 contacts the first surface 41 and the second surface 42, the grease may precipitate along the first surface 41 towards the first channel 61 or along the second surface 42 towards the second channel 62.

[0124] A second groove 52 is provided on the second surface 42 to prevent grease from overflowing and depositing into the second channel 62, and then flowing into the first channel 61. The second groove 52 can also prevent grease from overflowing into the camera module 20. Figure 4 When vibration occurs (as shown), the grease splashes from the second surface 42 onto the first channel 61, thereby avoiding any impact on the camera module 20 and ensuring the normal operation of the camera module 20.

[0125] Continue to refer to Figure 8 and Figure 9 In the above embodiment, the second groove 52 is similar to the first groove 51. The maximum distance between the second groove 52 and the moving pair 35 is less than or equal to 10mm, which can ensure that the grease can flow smoothly to the vicinity of the second groove 52, so that the grease can move into the second groove 52 under the capillary effect.

[0126] The width of the second groove 52 is 0.01mm-0.3mm. For example, the width of the second groove 52 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, or 0.3mm. The width of the second groove 52 is the distance between two opposite groove walls of the second groove 52 in a plane perpendicular to the optical axis.

[0127] Understandably, the width of the second groove 52 affects the capillary effect. If the width of the second groove 52 is too wide, the capillary effect will be poor, and the grease will have difficulty entering the second groove 52. If the width of the second groove 52 is too narrow, the viscosity of the grease will be too high, making it difficult to enter the second groove 52.

[0128] Therefore, the width of the second groove 52 is 0.01mm-0.3mm, which can ensure that the grease can smoothly enter the second groove 52 under the action of capillary effect, and prevent the grease from overflowing to other positions and affecting the camera module 20.

[0129] This application does not limit the manufacturing method of the first groove 51 and the second groove 52. The manufacturing method of the first groove 51 and the second groove 52 is generally related to the materials of the mover 32 and the stator 33. For example, in embodiments where the materials of the mover 32 and the stator 33 include plastic, the first groove 51 and the second groove 52 can be realized by injection molding, laser engraving, etc.; in embodiments where the materials of the mover 32 and the stator 33 include metal, the first groove 51 and the second groove 52 can be realized by stamping, laser grooving, etc.

[0130] In some embodiments, the number of second grooves 52 can be multiple, and multiple second grooves 52 are spaced apart between the motion pair 35 and the second channel 62 along the direction of the motion pair 35 pointing to the second channel 62.

[0131] The number of second grooves 52 is multiple, which can increase the capacity of the second grooves 52, ensure that the grease flows into the second grooves 52, and prevent the grease from flowing into the second channel 62, thus affecting the normal use of the camera module 20.

[0132] Continue to refer to Figure 9 In embodiments where the second groove 52 includes an oil collection groove 37, the oil collection groove 37 may be located on the side of the second groove 52 opposite to the second channel 62. Since the second channel 62 is close to the edge of the second surface 42, the oil collection groove 37 being located at the edge of the stator 33 would cause stress concentration.

[0133] The oil collection groove 37 is located on the side of the second groove 52 away from the second channel 62, which can avoid stress concentration caused by the edge slotting of the stator 33.

[0134] Continue to refer to Figure 9In some embodiments, an oleophobic coating is provided on the second surface 42 between the second groove 52 and the second channel 62. This application does not limit the material of the oleophobic coating; for example, the oleophobic coating may be a fluorosilane coating, a fluorocarbon coating, etc.

[0135] Because the oleophobic coating contains a large number of fluorine atoms, the fluorine atoms can reduce the surface energy of the second surface 42. The grease has a low surface tension, and because the surface energy of the second surface 42 is reduced, the grease cannot wet the second surface 42 and shrinks into beads and rolls off.

[0136] The oleophobic coating allows the second surface 42 to repel grease, preventing grease from flowing through the second surface 42 to the second channel 62, thus further preventing grease overflow.

[0137] Continue to refer to Figure 9 In some embodiments, the stator 33 is further provided with a second protrusion 72, which is disposed on the second surface 42 and located between the second groove 52 and the second channel 62.

[0138] The second protrusion 72 and the first protrusion 71 ( Figure 8 Similar to the function shown, the second protrusion 72 can further prevent grease from flowing into the second channel 62. At the same time, the second protrusion 72 will not affect the strength of the stator 33, and will prevent the second groove 52 from approaching the edge of the second surface 42, thus avoiding stress concentration in that part of the stator 33.

[0139] In the above embodiments, the thickness of the second protrusion 72 is 0.01-0.2 mm. For example, the thickness of the second protrusion 72 can be 0.01 mm, 0.05 mm, 0.1 mm, or 0.2 mm. The thickness of the second protrusion 72 is the distance between the upper surface of the second protrusion 71 and the second surface 42 in a direction parallel to the optical axis.

[0140] It is understandable that the first surface 41 ( Figure 8 (As shown) Facing the second surface 42, the thickness of the first protrusion 71 and the thickness of the second protrusion 72 both affect the relative movement between the mover 32 and the stator 33. If the second protrusion 72 is too thick, it will hinder the movement of the mover 32 and affect the camera module 20. Figure 4 The usage of (as shown).

[0141] The thickness of the second protrusion 72 is 0.01mm-0.2mm, which can ensure the normal movement of the mover 32 while preventing the grease from overflowing into the second channel 62, thereby ensuring the normal use of the camera module 20.

[0142] Please refer to Figure 10 and Figure 11This application embodiment does not limit the cross-sectional shape of the first groove 51 and the second groove 52. For example, the first groove 51 can be a V-shaped groove (such as...). Figure 10 As shown), the first groove 51 can also be a U-shaped groove (such as...). Figure 11 (As shown).

[0143] In the above embodiments, the depth L1 of the first groove 51 is 0.01mm-0.3mm. For example, the depth L1 of the first groove 51 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, or 0.3mm. The depth L1 of the first groove 51 is the distance by which the upper surface of the first groove 51 is recessed along the optical axis.

[0144] The depth L2 of the second groove 52 is 0.01mm-0.3mm. For example, the depth L2 of the second groove 52 can be 0.01mm, 0.05mm, 0.1mm, 0.2mm, or 0.3mm. The depth L2 of the second groove 52 is the distance by which the upper surface of the second groove 52 is recessed along the optical axis.

[0145] The depth L1 of the first groove 51 and the depth L2 of the second groove 52 affect the capacity of the first groove 51 and the second groove 52. For example, the greater the depth L1 of the first groove 51, the greater the capacity of the first groove 51, and the more grease it can hold; the smaller the depth L1 of the first groove 51, the smaller the capacity of the first groove 51, and the less grease it can hold.

[0146] Meanwhile, the depth L1 of the first groove 51 is also limited by the mover 32 ( Figure 8 The thickness of the second groove 52 (as shown) and the position of other components on the mover 32 are also limited by the thickness of the stator 33 (as shown). Figure 9 The thickness of the rotor 32 (as shown) and the position of other components on the stator 33 are considered. Therefore, an appropriate depth can be selected based on actual needs and the specific structure of the rotor 32 and stator 33.

[0147] Continue to refer to Figure 10 In the above embodiment, the included angle α1 between the two opposite groove walls of the first groove 51 is 15°-145°. For example, the included angle α1 can be 15°, 30°, 45°, 60°, 90°, 120°, or 145°.

[0148] It is understandable that the size of the included angle α1 is related to the width D1 and depth L1 of the first groove 51. For example, when the width D1 of the first groove 51 is greater than the depth L1 of the first groove 51, the included angle α1 is larger; when the width D1 of the first groove 51 is less than the depth L1 of the first groove 51, the included angle α1 is smaller.

[0149] The size of the included angle α1 also affects the effectiveness of the capillary effect. For example, when the included angle α1 is small (e.g., 45°, 60°), the capillary effect is more significant, and the grease enters the first groove 51 at a faster rate. When the included angle α1 is too small (e.g., 5°, 10°) or too large (e.g., 150°, 170°), the effect of the capillary effect will be reduced, and the grease will enter the first groove 51 at a slower rate. Therefore, an appropriate included angle α1 can be selected according to actual needs.

[0150] Continue to refer to Figure 10 Similar to the first groove 51, the included angle α2 between the two opposite groove walls of the second groove 52 is 15°-145°.

[0151] It is understandable that the size of the included angle α2 is related to the width D2 and depth L2 of the second groove 52. For example, when the width D2 of the second groove 52 is greater than the depth L2 of the second groove 52, the included angle α2 is larger; when the width D2 of the second groove 52 is less than the depth L2 of the second groove 52, the included angle α2 is smaller.

[0152] The size of the included angle a2 also affects the effect of the capillary effect. For example, when the included angle a2 is small (e.g., 45°, 60°), the capillary effect is more significant and the grease enters the second groove 52 at a faster rate. When the included angle a2 is too small (e.g., 5°, 10°) or too large (e.g., 150°, 170°), the effect of the capillary effect is slightly reduced and the grease enters the second groove 52 at a slower rate.

[0153] Please refer to Figure 12 In some embodiments, the groove (first groove 51 or second groove 52) may include a main groove 511 and a branch groove 512, the main groove 511 communicating with the branch groove 512, and the branch groove 512 extending toward the kinematic pair 35. This application embodiment does not limit the width d2 of the branch groove 512; for example, the ratio (d2:d1) of the width d2 of the branch groove 512 to the width d1 of the main groove 511 can be 1:2. wait.

[0154] The number of branch slots 512 is not limited in this application embodiment. For example, the branch slots 512 may include multiple levels, and the number of branch slots 512 in each level may be 2 or 3.

[0155] The branch groove 512 can adjust the flow direction of the grease, so that the grease moves towards the moving pair 35, preventing the grease from overflowing and flowing to other positions, thus avoiding affecting the camera module 20.

[0156] Please refer to Figure 13 In addition to the first groove 51 mentioned above, a blind hole 36 may also be provided on the first surface 41, the blind hole 36 and the first groove 51 ( Figure 12 The same function is shown below. Under the action of capillary effect, the grease can enter the blind hole 36, preventing grease overflow and ensuring the smooth operation of the camera module 20. Figure 4 (As shown) Normal use.

[0157] Please refer to Figure 14 In the above embodiment, the kinematic pair 35 includes ball bearings 81, and a receiving groove 421 is provided on the second surface 42. A portion of the ball bearings 81 are disposed within the receiving groove 421, and the ball bearings 81 are positioned on the first surface 41. Figure 13 (As shown) Contact.

[0158] The ball bearing 81 can reduce the movement of the rotor 32 ( Figure 13 The coefficient of friction during the movement (as shown) allows for higher precision in image stabilization and reduces the lens's resistance (21). Figure 4 The amount of jitter (as shown) is reduced, improving the camera module 20 ( Figure 4 The image stabilization effect is shown in the figure.

[0159] The stator 33 is also provided with a third groove 53, one end of which is connected to the receiving groove 421. Since some of the balls 81 are located in the receiving groove 421, the grease can be directly added to the receiving groove 421 and come into contact with the balls 81, which further reduces the coefficient of friction during the movement of the mover 32 and further improves the image stabilization effect of the camera module 20.

[0160] The third groove 53 is connected to the receiving groove 421, which can introduce grease into the third groove 53 and guide it to other positions on the stator 33, thus preventing the grease from precipitating towards the second channel 62.

[0161] Continue to refer to Figure 14 In the above embodiment, the stator 33 further includes a limiting part 40, which surrounds the mover 32. Figure 13 The outer periphery of the third groove 53 (as shown) is located on the limiting part 40.

[0162] Since relative movement frequently occurs between the mover 32 and the stator 33, the limiting part 40 is arranged around the outer periphery of the mover 32 to prevent the mover 32 from colliding with the stator 33 or the surrounding structure due to excessive displacement (such as accidental drop), thus protecting precision components such as coils and magnets. At the same time, the limiting part 40 can also ensure that the mover 32 is within the preset calibration range, avoiding optical axis deviation caused by excessive displacement and maintaining anti-shake accuracy.

[0163] However, when the limiting part 40 collides with the moving part 32, dust will be generated at the collision site, affecting the camera module 20. Figure 4 (As shown) is working normally.

[0164] The other end of the third groove 53 is located on the limiting part 40. The grease can be guided to the limiting part 40 through the third groove 53, so that the grease can come into further contact with the limiting part 40, reduce the friction between the limiting part 40 and the moving part 32, and reduce the dust generation of the limiting part 40.

[0165] Continue to refer to Figure 14 In some embodiments, a fourth groove 54 is provided on the limiting portion 40, and the fourth groove 54 communicates with the third groove 53. Because the fourth groove 54 communicates with the third groove 53, grease flowing into the third groove 53 can be guided to the fourth groove 54. The fourth groove 54 on the limiting portion 40 facilitates contact between the grease and the limiting portion 40, improving the grease precipitation efficiency.

[0166] Please refer to Figure 15 , Figure 15 The dashed line in the figure represents the center line of the sliding shaft 82. In some embodiments, the camera module 20 ( Figure 4 (As shown) can be a periscope telephoto camera module. The moving part 32 is provided with a mounting slot 321, which is used to mount the lens 21. Figure 4 (As shown). Here, lens 21 can be a prism or a lens. The motion pair 35 includes a slide shaft 82 disposed on the stator 33, and the mover 32 is slidably connected to the slide shaft 82.

[0167] The moving part 32 is slidably connected to the sliding shaft 82. Lubricant can be placed between the moving part 32 and the sliding shaft 82 to reduce the friction between them, making the moving part 32 slide more smoothly along the sliding shaft 82, thereby improving the performance of the camera module 20. Figure 4 The focusing effect is shown in the figure.

[0168] The mover 32 includes a third surface 43, which is located between the mounting groove 321 and the slide shaft 82. The centerline of the slide shaft 82 is perpendicular to the third surface 43. A first groove 51 is provided on the third surface 43, which is located between the mounting groove 321 and the slide shaft 82. Grease overflowing between the slide shaft 82 and the mover 32 will enter the first groove 51 under the action of capillary effect, preventing grease from flowing into the mounting groove 321 and affecting the connection strength between the mounting groove 321 and the lens 21.

[0169] In embodiments where lens 21 includes a prism, the side of the prism is bonded to the side wall of the mounting groove 321, enabling the connection between lens 21 and mover 32. The prism also includes two right-angled surfaces and one side surface. The side surface of the prism contacts the bottom of the mounting groove 321. One right-angled surface is used to receive light, and the other right-angled surface is used to output light.

[0170] In some embodiments, the number of first grooves 51 can be multiple, and multiple first grooves 51 are spaced apart on the third surface 43 along the direction from the motion pair 35 to the mounting groove 321.

[0171] The number of first grooves 51 is multiple, which can increase the capacity of the first grooves 51, ensure that the grease flows into the first grooves 51, and prevent the grease from flowing into the mounting groove 321, affecting the connection strength between the mounting groove 321 and the lens 21, thereby preventing the grease from affecting the camera module 20.

[0172] Continue to refer to Figure 15 In some embodiments, the portion of the first groove 51 adjacent to the edge of the mover 32 has an opening 322.

[0173] Because the opening 322 is close to the edge of the mover 32, after the grease flows into the first groove 51, it can flow to the opening 322 under the guidance of the first groove 51 and flow out from the opening 322. This allows the grease to flow to a position away from the mover 32, avoiding the grease from affecting the movement between the mover 32 and the lens 21. Figure 4 The connection effect is shown in the figure.

[0174] Continue to refer to Figure 15 In some embodiments, a third protrusion 73 may also be provided on the third surface 43, and the third protrusion 73 may be located between the first groove 51 and the mounting groove 321.

[0175] The third protrusion 73 can further prevent grease from flowing into the mounting groove 321, avoid grease affecting the surface finish of the mounting groove 321, and ensure the proper fit between the mounting groove 321 and the lens 21. Figure 4 The connection effect is shown in the figure.

[0176] Please refer to Figure 16 In some embodiments, a fourth surface 44 exists between the mounting groove 321 and the sliding shaft 82, and a fifth groove 55 is provided on the fourth surface 44, which is connected to the first groove 51.

[0177] Understandably, the grease is located between the mover 32 and the slide shaft 82. The grease can flow to the third surface 43 and approach the mounting groove 321, and it can also flow to the fourth surface 44 and approach the mounting groove 321. A fifth groove 55 is provided on the fourth surface 44 to prevent grease from overflowing into the mounting groove 321, further reducing the possibility of grease overflow and ensuring proper contact between the mounting groove 321 and the lens 21. Figure 4 The connection strength (as shown).

[0178] The embodiments of this application do not limit the formation method of the fifth groove 55 and the first groove 51. For example, the fifth groove 55 and the first groove 51 can be formed separately, or the fifth groove 55 and the first groove 51 can be an integral structure.

[0179] Continue to refer to Figure 16 In some embodiments, a fourth protrusion 74 may also be provided on the third surface 43, and the fourth protrusion 74 may be located between the fifth groove 55 and the mounting groove 321.

[0180] The fourth protrusion 74 can further prevent grease from flowing into the mounting groove 321, avoid the grease from affecting the surface finish of the mounting groove 321, and ensure the proper fit between the mounting groove 321 and the lens 21. Figure 4 The connection effect is shown in the figure.

[0181] The embodiments of this application do not limit the formation method of the third protrusion 73 and the fourth protrusion 74. For example, the third protrusion 73 and the fourth protrusion 74 can be formed separately, or the third protrusion 73 and the fourth protrusion 74 can be an integral structure.

[0182] Please refer to Figure 17 In some embodiments, the camera module 20 may include two lenses 21 (a first lens 211 and a second lens 212), and the camera motor 30 may be located between the two lenses 21. The movement of the mover 32 relative to the stator 33 can change the position of the mover 32, so that the mover 32 can cover the first lens 211 or the second lens 212, thereby controlling the camera module 20 to select the second lens 212 or the first lens 211.

[0183] This application embodiment does not limit the first lens 211 and the second lens 212. For example, the first lens 211 and the second lens 212 may have different apertures or different focal lengths. The first lens 211 and the second lens 212 can be set according to the actual lens 21 requirements.

[0184] Please refer to Figure 18 The motion pair 35 includes a sliding part 83, the mover 32 is connected to the sliding part 83, the stator 33 is provided with a sliding groove 331, the sliding part 83 is slidably connected to the sliding groove 331, and the extension direction of the first groove 51 is parallel to the movement direction of the mover 32.

[0185] To reduce the friction between the mover 32 and the stator 33 and ensure the sliding effect of the mover 32, grease is usually applied between the sliding part 83 and the groove 331. The extension direction of the first groove 51 is parallel to the moving direction of the mover 32, which can prevent the grease from flowing along the sliding part 83 towards the mover 32 and affecting the mover 32, thereby preventing the grease from affecting the camera module 20. Figure 17(As shown) This will have an impact.

[0186] In some embodiments, the moving part 32 and the stator 33 are made of metal, and the first groove 51 can be achieved by stamping or laser grooving.

[0187] In some embodiments, the mover 32 and the sliding part 83 can be an integral structure. This integral structure simplifies the manufacturing steps and reduces the manufacturing difficulty of the camera motor 30, thereby lowering its manufacturing cost.

[0188] Continue to refer to Figure 17 and Figure 18 In the above embodiment, the mover 32 includes a baffle 84.

[0189] The position of the baffle 84 can be adjusted by controlling the movement of the sliding part 83 along the slide groove 331. For example, when the sliding part 83 moves along the slide groove 331 to a position close to the first lens 211, the baffle 84 can cover the first lens 211, allowing the second lens 212 to be used. When the sliding part 83 moves along the slide groove 331 to a position close to the second lens 212, the baffle 84 can cover the second lens 212, allowing the first lens 211 to be used.

[0190] The mover 32 includes a baffle 84. By adjusting the moving direction and position of the baffle 84, the performance of the camera module 20 can be adjusted.

[0191] The first groove 51 is provided on the baffle 84 to prevent grease from overflowing between the sliding part 83 and the groove 331 and flowing along the baffle 84. The first groove 51 can prevent overflowing grease from flowing to the side of the baffle 84 away from the groove 331, ensuring the normal use of the baffle 84, and preventing grease from flowing to the baffle 84. When the baffle 84 covers the lens 21, grease may splash or scrape onto the lens 21, affecting the use of the lens 21, thereby ensuring the normal use of the camera module 20.

[0192] Please refer to Figure 19 and Figure 20 In some embodiments, the mover 32 has a through hole 323 and the mover 32 also includes a connector 85, which passes through the through hole 323. The first groove 51 is located on the side of the connector 85 away from the kinematic pair 35.

[0193] This application does not limit the material of the connector 85. For example, the material of the connector 85 can be plastic, rubber, silicone, etc. The connector 85 can be located near the lens 21 on the mover 32. Figure 17 To prevent the lens 21 from colliding with the moving part 32 in case of an accidental drop, the lens 21 should be positioned on one side (as shown).

[0194] Since the connector 85 passes through the through hole 323, there is a gap between the connector 85 and the mover 32. Excess grease will flow through the gap towards the mover 32. The first groove 51 is located on the side of the connector 85 away from the moving pair 35. Under the action of capillary effect, the grease passing through the gap can be introduced into the first groove 51, preventing the grease from continuing to flow towards the mover 32 and ensuring the normal use of the mover 32.

[0195] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A camera motor, characterized in that, include: Movers; The stator is connected to the mover via a kinematic pair, which is lubricated by grease. The mover has a first groove, the maximum distance between the first groove and the kinematic pair is less than or equal to 10 mm, and the width of the first groove is 0.01 mm to 0.3 mm.

2. The camera motor according to claim 1, characterized in that, The moving element includes a first surface, and the first groove is disposed on the first surface; The moving part is provided with a first channel, and the stator is provided with a second channel. The first channel and the second channel are connected. The center line of the first channel and the second channel is perpendicular to the first surface. The first channel is used to install a lens. The first groove is located between the kinematic pair and the first channel.

3. The camera motor according to claim 2, characterized in that, The depth of the first groove is 0.01mm-0.3mm.

4. The camera motor according to claim 2 or 3, characterized in that, The included angle between the two opposite walls of the first groove is 15°-145°.

5. The camera motor according to any one of claims 2-4, characterized in that, The mover is also provided with a first protrusion, which is disposed on the first surface and located between the first groove and the first channel.

6. The camera motor according to claim 5, characterized in that, The thickness of the first protrusion is 0.01mm-0.2mm.

7. The camera motor according to any one of claims 2-6, characterized in that, The stator has a second surface facing the first surface, the first surface and the second surface are parallel to the moving direction of the mover, and the kinematic pair is disposed between the first surface and the second surface; A second groove is provided on the second surface, and the second groove is located between the kinematic pair and the second channel.

8. The camera motor according to claim 7, characterized in that, The stator is also provided with a second protrusion, which is disposed on the second surface and located between the second groove and the second channel.

9. The camera motor according to claim 7 or 8, characterized in that, The kinematic pair includes balls, and a receiving groove is provided on the second surface. Part of the balls are disposed in the receiving groove, and the balls are in contact with the first surface. The stator is also provided with a third groove, one end of which is connected to the receiving groove.

10. The camera motor according to claim 9, characterized in that, The stator also includes a limiting part, which surrounds the outer periphery of the mover, and the other end of the third groove is located on the limiting part.

11. The camera motor according to claim 10, characterized in that, The limiting part is provided with a fourth groove, which communicates with the third groove.

12. The camera motor according to claim 1, characterized in that, The moving part is provided with a mounting groove for mounting a lens, and the motion pair includes a sliding shaft disposed on the stator, and the moving part is slidably connected to the sliding shaft; The mover includes a third surface located between the mounting groove and the sliding shaft, the centerline of the sliding shaft being perpendicular to the third surface, and the first groove being disposed on the third surface.

13. The camera motor according to claim 12, characterized in that, The portion of the first groove near the edge of the moving part has an opening.

14. The camera motor according to claim 1, characterized in that, The kinematic pair includes a sliding part, the mover is connected to the sliding part, the stator is provided with a sliding groove, the sliding part is slidably connected to the sliding groove, and the extension direction of the first groove is parallel to the movement direction of the mover.

15. The camera motor according to claim 14, characterized in that, The moving part includes a baffle.

16. The camera motor according to claim 14 or 15, characterized in that, The moving part has a through hole, and the moving part also includes a connector, which passes through the through hole. The first groove is located on the side of the connector away from the kinematic pair.

17. A camera module, characterized in that, The device includes a lens, a circuit board, and a camera motor as described in any one of claims 1-16, wherein the lens is disposed on the camera motor, and the circuit board is located on the side of the camera motor opposite to the lens.

18. An electronic device, characterized in that, It includes a motherboard and the camera module as described in claim 17, wherein the circuit board is electrically connected to the motherboard.

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