Lens module and electronic equipment

Abstract

The embodiment of the invention discloses a lens module and electronic equipment, at least one driving chute is arranged on a driving piece, and a movable lens is arranged on a guide part and is arranged corresponding to the driving chute. Therefore, the first guide columns are inserted into the corresponding driving chutes, when the driving piece moves towards the side direction of the movable lens, the first guide columns can slide along the driving chutes, and the movable lens moves on the light path under the driving of the guide part, so that focal length adjustment is realized. On the other hand, the inclination amplitude of the driving inclined groove is configured, the movement speed and precision of the movable lens can be adjusted, the imaging performance of the lens module is improved, and the internal structure of the lens module is simplified. When the first driving part is not electrified, the current position of the movable lens can be limited by using the driving piece, so that the movable lens is prevented from shaking. And the abrasion phenomenon of the first driving part in long-term use is also reduced.

Description

Technical Field

[0001] This invention relates to the field of camera technology, and more particularly to a lens module and an electronic device. Background Technology

[0002] The focus adjustment of camera lens assemblies typically uses a coil and magnet combination for actuation. This method results in a complex internal structure for the camera lens assembly, increasing manufacturing costs. Furthermore, large adjustment strokes can lead to collisions and wear of internal components. Therefore, optimizing the actuation method for camera lens assemblies is a problem that needs to be addressed. Summary of the Invention

[0003] In view of this, one embodiment of the present invention provides a lens module and an electronic device, which uses a driving slant to drive the first guide post to move, thereby improving the motion reliability of the movable lens.

[0004] According to a first aspect of the present invention, a lens module is provided, the lens module comprising:

[0005] Seat;

[0006] Fixed lens;

[0007] Guiding department;

[0008] At least one movable lens is movably disposed on the guide portion, the movable lens including a first guide post; and

[0009] The first driving part includes a driving member, the driving member having at least one driving groove corresponding to at least one of the movable lenses, the first guide post being inserted into the corresponding driving groove, and the first driving part, the fixed lens, the guide part and the movable lens being mounted on the base.

[0010] The driving member moves laterally toward the movable lens, and the first guide post is configured to slide along the driving groove, thereby driving the movable lens to move closer to or away from the imaging unit along the optical path.

[0011] Furthermore, there are multiple movable lenses and multiple drive slots, with the multiple drive slots spaced apart and having different lengths and tilt angles.

[0012] Furthermore, the drive chute extends along a straight line or a curve.

[0013] Furthermore, the plurality of movable lenses include a first lens and a second lens, the first lens and the second lens being sequentially disposed on one side of the fixed lens, and the driving member driving the first lens and the second lens to move closer to or away from the fixed lens.

[0014] Furthermore, the plurality of driving grooves include a first driving groove corresponding to the first lens and a second driving groove corresponding to the second lens, wherein the inclination amplitude of the first driving groove is greater than that of the second driving groove and the inclination directions are the same.

[0015] Furthermore, the base includes a fixing frame, which includes two columns, and a second guide column is provided on the side of each column;

[0016] The driving component has two guide slots corresponding to the two columns, and the second guide column passes through the corresponding guide slot;

[0017] The drive component moves laterally toward the movable lens, and the second guide post slides along the corresponding guide groove.

[0018] Furthermore, the driving element is a magnetic conductor;

[0019] The lens module further includes a second driving unit, which includes a second magnetic body and a first magnetic body. The second magnetic body is disposed on the side of the second lens near the driving member, and the first magnetic body is disposed on the side of the first lens near the driving member.

[0020] The magnetic forces of the second magnetic body and the first magnetic body act on the driving member, and the side of the driving member near the movable lens abuts against the two pillars.

[0021] Furthermore, the driving component is a plate-shaped structure, the driving groove and the guide groove penetrate the plate-shaped structure, and the edge of the plate-shaped structure has a rack, which is arranged parallel to the guide groove;

[0022] The first drive unit further includes a gear and a drive motor disposed on the fixed frame. The gear is connected to the output shaft of the drive motor and meshes with the rack.

[0023] Furthermore, each of the columns is provided with a plurality of second guide posts, and the plurality of second guide posts are spaced apart along the height direction of the column;

[0024] The movable lens is positioned close to the fixed lens, with the second guide post near one end of the column abutting against the end of the guide groove; the movable lens is positioned close to the imaging unit, with the second guide post near the other end of the column abutting against the end of the guide groove.

[0025] Furthermore, the guide portion includes a first guide rod and a second guide rod;

[0026] The first guide rod is fixedly connected to the two columns, and the movable lens is located between the first guide rod and the second guide rod;

[0027] Both the first lens and the second lens include a support portion and a lens barrel disposed on the support portion. The support portion has a first guide post, a first groove facing the first guide rod, and a second groove facing the second guide rod.

[0028] The driving member moves laterally toward the movable lens, and the first slide groove and the second slide groove slide along the first guide rod and the second guide rod, respectively.

[0029] Furthermore, the supporting part of the second lens includes a first supporting body and a second supporting body. The first supporting body has a first guide post, a first sliding groove and a second sliding groove. The lens barrel is disposed on the second supporting body, and the second supporting body is movably disposed on the first supporting body.

[0030] The second driving unit further includes a plurality of second magnetic bodies and a first coil spaced apart from the second magnetic bodies. One of the second magnetic bodies and the first coil is disposed on the first carrier, and the other is disposed on the second carrier. The plurality of second magnetic bodies are arranged along the length direction of the first guide rod, and the magnetic poles of two adjacent second magnetic bodies face opposite directions.

[0031] The induced magnetic field of the first coil acts on a plurality of second magnetic bodies to drive the lens barrel closer to or away from the imaging unit via the second carrier.

[0032] Furthermore, the first carrier is provided with two third slide grooves facing different directions, and the second carrier is provided with two fourth slide grooves facing the two third slide grooves respectively;

[0033] The second lens also includes a plurality of ball bearings disposed between the third slide groove and the fourth slide groove, wherein the third slide groove moves relative to the fourth slide groove via the ball bearings.

[0034] Furthermore, the second lens also includes:

[0035] A flexible transmission line is disposed on the second lens and bends toward the first lens. The flexible transmission line includes a first end and a second end. The first end is fixedly connected to the imaging unit, and the second end is fixedly connected to the first carrier.

[0036] Furthermore, the lens module also includes a constraint part, which is disposed on the first lens and the second lens;

[0037] The constraint part is configured such that the movable lens is in a stationary state, and the constraint part generates a constraint force to drive the two first guide posts to abut against the inner walls of the two drive grooves respectively.

[0038] Secondly, embodiments of the present invention also provide an electronic device, the electronic device comprising:

[0039] According to the lens module described in the first aspect above.

[0040] In one embodiment of the present invention, a lens module and electronic device have at least one driving groove on a driving member, and a movable lens is disposed on a guide portion corresponding to the driving groove. Thus, when a first guide post is inserted into the corresponding driving groove, and the driving member moves laterally toward the movable lens, the first guide post slides along the driving groove. Driven by the guide portion, the movable lens moves along the optical path, thereby achieving focal length adjustment. Furthermore, configuring the tilt angle of the driving groove allows adjustment of the movement speed and accuracy of the movable lens, increasing the imaging performance of the lens module and simplifying its internal structure. Simultaneously, the cooperation between the driving groove and the first guide post improves the movement stability of the movable lens, enabling continuous focal length adjustment. When the first driving member is not powered on, the driving member can limit the current position of the movable lens, preventing it from shaking. This also reduces wear on the first driving member during long-term use. Attached Figure Description

[0041] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0042] Figure 1 This is a schematic diagram of the lens module according to an embodiment of the present invention;

[0043] Figure 2 This is an exploded view of one side of the lens module according to an embodiment of the present invention;

[0044] Figure 3 This is an exploded view of the other side of the lens module according to an embodiment of the present invention;

[0045] Figure 4 This is an internal schematic diagram of one side of the lens module according to an embodiment of the present invention;

[0046] Figure 5 This is an internal schematic diagram of the lens module on the other side of an embodiment of the present invention;

[0047] Figure 6 This is an exploded view of one side of the second lens in an embodiment of the present invention;

[0048] Figure 7This is an explosion diagram of the other side of the second lens in an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram of the motion state of the first and second lenses in an embodiment of the present invention;

[0050] Figure 9 yes Figure 1 Schematic diagram of the cross section at point AA;

[0051] Figure 10 yes Figure 9 A magnified view of a portion of the image;

[0052] Figure 11 This is a schematic diagram of the structure of the constraint part in some embodiments of the present invention;

[0053] Figure 12 This is a schematic diagram of the constraint part in some embodiments of the present invention.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1-First drive unit;

[0056] 11-Driver component; 111-Driver slant; 1111-First drive slant; 1112-Second drive slant; 1113-First face; 1114-Second face; 1115-First end face;

[0057] 112 - Guide groove;

[0058] 12-Rack;

[0059] 13-Drive motor;

[0060] 14-Gear;

[0061] 2-Second drive unit;

[0062] 21-Second magnetic body; 22-First coil; 23-First magnetic body;

[0063] 3-Movable lens;

[0064] 31 - First guide post;

[0065] 32-First Shot;

[0066] 33-Second shot;

[0067] 341-Bearing part; 3411-First bearing body; 3412-Second bearing body;

[0068] 3413 - Third slide groove; 3414 - Fourth slide groove;

[0069] 342 - Lens tube; 343 - First groove; 344 - Second groove; 345 - First contact plane; 346 - Second contact plane;

[0070] 35-ball bearing;

[0071] 36 - Flexible transmission line; 361 - First end; 362 - Second end;

[0072] 37-Lens group;

[0073] 4-Guide section;

[0074] 41-First guide rod; 41a-Central axis; 42-Second guide rod;

[0075] 5 - Second coil;

[0076] 6-Fixed lens;

[0077] 7-Seal;

[0078] 71-Fixed frame; 711-Column; 712-Second guide column;

[0079] 72-Base plate;

[0080] 8-Constraint section;

[0081] 811 - First connecting end; 812 - Second connecting end; 813 - Elastic zone;

[0082] 821 - Third magnetic material; 822 - Fourth magnetic material. Detailed Implementation

[0083] The present invention is described below based on embodiments, but the invention is not limited to these embodiments. In the detailed description of the invention below, certain specific details are described in detail. Those skilled in the art will fully understand the invention even without these details. To avoid obscuring the essence of the invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0084] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only, and the scale shown in the drawings is only one embodiment; other embodiments are not necessarily implemented to scale.

[0085] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0086] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0087] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0088] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0089] Figure 1 This is a schematic diagram of the lens module in this embodiment. Figure 2 and Figure 3 This is an exploded view of the lens module in this embodiment.

[0090] In some implementations, such as Figures 1-3 As shown, the lens module in this embodiment can be configured as a periscope lens module or a cylindrical lens module. Taking a periscope lens module as an example, the periscope lens module includes a base 7 and a fixed lens 6, a first driving part 1, one or more movable lenses 3, and a guide part 4 disposed on the base 7. The upper shell of the base 7 is provided with a light inlet hole, and the side of the base 7 is provided with a light outlet hole. Light enters from the light inlet hole, passes through the fixed lens 6 and the movable lens 3 in sequence, and then exits from the light outlet hole. The optical path of the periscope lens module includes a first segment and a second segment. The first segment is where light enters the fixed lens 6, and the second segment is where light refracted by the fixed lens 6 enters the movable lens 3. The guide part 4 extends along the direction of the second segment of the optical path. The movable lens 3 is disposed on the guide part 4 and moves along the guide part 4. A first guide post 31 is protruding laterally from the movable lens 3.

[0091] Figure 4 and Figure 5 This is an internal schematic diagram of the lens module in this embodiment. Figure 6 and Figure 7 This is an exploded schematic diagram of the second lens 33 in this embodiment.

[0092] Further reference Figures 4-7 As shown, in this embodiment, the first driving unit 1 drives the movable lens 3 to move along the guide part 4, thereby adjusting the position between the movable lens 3 and the fixed lens 6 to achieve a zoom function. The first driving unit 1 includes a driving member 11. The driving member 11 has at least one driving groove 111 corresponding to at least one movable lens 3, and the first guide post 31 is inserted into the corresponding driving groove 111. The driving groove 111 is inclined relative to the second segment of the optical path. When there are multiple driving grooves 111, the inclination directions of the multiple driving grooves 111 can be the same or different. Those skilled in the art can design the inclination mode of the driving groove 111 according to the optical path design of the lens module.

[0093] Figure 8 This is a schematic diagram of the movement states of the first lens 32 and the second lens 33 in this embodiment. States I, II, and III represent the different positions of the movable lens 3 and the driving component 11 during operation.

[0094] Further reference Figure 8 As shown, when the driving member 11 moves laterally toward the movable lens 3, the driving groove 111, through the first guide post 31, drives the movable lens 3 to move closer to or away from the fixed lens 6 along the optical path, and causes the first guide post 31 to slide along the driving groove 111. During this process, the guide part 4 can play a guiding role, and the movable lens 3 can remain in the optical path under the drive of the guide part 4, avoiding deviation. In the figure, the driving member 11 moves upward, and the direction of movement of the driving member 11 is perpendicular to the second segment direction of the optical path. The bottom surface of the driving groove 111 abuts against the bottom of the first guide post 31, causing the first guide post 31 to move toward the end of the driving groove 111, thereby realizing the driving of the movable lens 3 by the first driving member 1.

[0095] In summary, the lens module in this embodiment has at least one drive groove 111 on the drive member 11, and the movable lens 3 is positioned on the guide part 4 and correspondingly positioned with the drive groove 111. Thus, when the first guide post 31 is inserted into the corresponding drive groove 111, and the drive member 11 moves laterally toward the movable lens 3, the first guide post 31 can slide along the drive groove 111. Driven by the guide part 4, the movable lens 3 moves along the optical path, thereby achieving focal length adjustment. Furthermore, configuring the tilt angle of the drive groove 111 allows for adjustment of the movement speed and accuracy of the movable lens 3, increasing the imaging performance of the lens module and simplifying its internal structure. Simultaneously, the cooperation between the drive groove 111 and the first guide post 31 improves the movement stability of the movable lens 3, enabling continuous focal length adjustment. When the first drive part 1 is not powered on, the drive member 11 can restrict the current position of the movable lens 3, preventing it from shaking. This also reduces wear on the first drive part 1 during long-term use.

[0096] In some implementations, such as Figure 8 As shown, there are multiple movable lenses 3 and multiple drive slots 111. The multiple drive slots 111 are spaced apart and have different lengths and tilt angles. In this embodiment, the tilt angle and length of the multiple drive slots 111 can be adjusted according to the movement stroke of the movable lens 3. When the drive member 11 moves upward a predetermined distance, the multiple drive slots 111 with different tilt angles and lengths allow the multiple movable lenses 3 to move different distances, thereby enabling the multiple movable lenses 3 to perform different functions.

[0097] Furthermore, such as Figure 8 As shown, the drive chute 111 in this embodiment includes a first surface 1113, a second surface 1114, and two first end surfaces 1115 located at both ends of the first surface 1113 and the second surface 1114. When the drive chute 111 extends in a straight line (as shown by dashed line Ia), the first surface 1113 and the second surface 1114 are both planar and parallel to each other. When the drive chute 111 extends in a curved direction (as shown by dashed line Ib), the first surface 1113 and the second surface 1114 are curved surfaces and extend in parallel. Thus, when the drive chute 111 extends in a straight line, linear adjustment of the position of the movable lens 3 by the first drive unit 1 can be achieved. When the drive chute 111 extends in a curved direction, nonlinear adjustment of the position of the movable lens 3 by the first drive unit 1 can be achieved, thereby accelerating the movement speed of the movable lens 3 in part of its stroke and improving the movement accuracy in part of its stroke.

[0098] In some implementations, such as Figures 1-5As shown, the multiple movable lenses 3 include a first lens 32 and a second lens 33. The first lens 32 and the second lens 33 are located between the light-emitting aperture and the fixed lens 6, and the driving member 11 drives the first lens 32 and the second lens 33 to move closer to or further away from the fixed lens 6. In this embodiment, the first driving unit 1 can simultaneously adjust the distance between the first lens 32 and the second lens 33 and the fixed lens 6, thereby realizing the zoom and focus functions of the lens module.

[0099] In some implementations, such as Figures 1-5 and Figure 7 As shown, the first lens 32 is a zoom lens. The second lens 33 is a focusing lens and is located between the first lens 32 and the light exit aperture. The plurality of driving grooves 111 include a first driving groove 1111 corresponding to the first lens 32 and a second driving groove 1112 corresponding to the second lens 33. The tilt amplitude of the first driving groove 1111 is greater than that of the second driving groove 1112 and the tilt directions are the same.

[0100] In this embodiment, the first driving groove 1111 and the second driving groove 1112 have the same tilt direction, allowing the first lens 32 and the second lens 33 to move closer to or further away from the fixed lens 6 simultaneously. Furthermore, the second driving groove 1112 has a smaller tilt angle, enabling the second lens 33 to approach or move further away from the first lens 32 more quickly when the first lens 32 and the second lens 33 are moving closer to or further away from the fixed lens 6. This helps the second lens 33 to focus on the incident light, ensuring that the real image is clearly presented on the imaging unit.

[0101] Optionally, such as Figure 8 As shown in state I, the lens module can be configured in wide-angle mode. In this configuration, both the first lens 32 and the second lens 33 are positioned far from the fixed lens 6, and the second lens 33 is also positioned far from the first lens 32. This increases the field of view of the lens module and enhances the depth of field.

[0102] Optionally, such as Figure 8 As shown in state III, the lens module can also be configured in telephoto mode. In this configuration, both the first lens 32 and the second lens 33 are close to the fixed lens 6, with the second lens 33 positioned adjacent to the first lens 32. This allows the lens module to magnify distant objects and reduce the depth of field.

[0103] In some implementations, such as Figures 1-3 As shown, the base 7 includes a fixing frame 71, which includes two uprights 711. A second guide post 712 protrudes laterally from each upright 711. The driving member 11 has two guide grooves 112 corresponding to the two uprights 711, and the second guide post 712 passes through the corresponding guide groove 112. Further referring to… Figure 8As shown, the driving member 11 moves laterally toward the movable lens 3, and the second guide post 712 slides along the corresponding guide groove 112. In this embodiment, the second guide post 712 is used to guide the guide groove 112, ensuring that the driving member 11 can move in a direction perpendicular to the optical path.

[0104] Figure 9 yes Figure 1 Schematic diagram of cross-section at point AA.

[0105] In some implementations, such as Figures 1-5 and Figure 9 As shown, the driving component 11 is a magnetic conductor. The material of the driving component 11 can be iron, nickel, or stainless steel, etc. The lens module also includes a second driving unit 2. The second driving unit 2 includes a second magnetic body 21 and a first magnetic body 23. The second magnetic body 21 is disposed on the side of the second lens 33 near the driving component 11. The first magnetic body 23 is disposed on the side of the first lens 32 near the driving component 11. The magnetic force of the second magnetic body 21 and the first magnetic body 23 acts on the driving component 11, and the side of the driving component 11 near the movable lens 3 abuts against the side of the two pillars 711 opposite to the movable lens 3.

[0106] This allows the drive component 11 to stably conform to the sides of the two columns 711, preventing it from falling off the mounting bracket 71 as it slides along the height of the columns 711. Simultaneously, the magnetic attraction of the first magnetic body 23 and the second magnetic body 21 to the drive component 11 ensures that the first lens 32 and the second lens 33 remain close to the drive component 11, preventing their centers from shifting.

[0107] It should be noted that when the drive component 11 is in contact with the two pillars 711, the drive component 11 applies positive pressure to the pillars 711. When the lens module is powered off, this positive pressure will create static friction between the drive component 11 and the pillars 711, preventing the drive component 11 from moving easily. This prevents the movable lens 3 from moving along the optical path after the lens module is powered off.

[0108] In some implementations, such as Figures 2-4 As shown, the driving component 11 has a plate-like structure. A driving groove 111 and a guide groove 112 penetrate the plate-like structure. The edge of the plate-like structure has a rack 12, which is arranged parallel to the guide groove 112. The first driving unit 1 also includes a gear 14 and a driving motor 13 mounted on the fixing frame 71. The gear 14 is connected to the output shaft of the driving motor 13 and meshes with the rack 12. The driving motor 13 can be arranged adjacent to the fixed lens 6. In this embodiment, the gear 14 and rack 12 cooperate to convert the rotational motion of the driving motor 13 into the linear motion of the driving component 11. This simplifies the driving method of the first driving unit 1.

[0109] In some implementations, such as Figure 4 and Figure 8 As shown, each column 711 is provided with a plurality of second guide posts 712, which are spaced apart along the height direction of the column 711. When the movable lens 3 is in a position close to the fixed lens 6, the second guide post 712 near one end of the column 711 abuts against the end of the guide groove 112. When the movable lens 3 is in a position close to the imaging unit, the second guide post 712 near the other end of the column 711 abuts against the end of the guide groove 112.

[0110] Specifically, each pillar 711 has two second guide pillars 712. The extension direction of the guide groove 112 is perpendicular to the optical path. When the driving member 11 is near the bottom of the pillar 711, the upper pillar 711 abuts against the upper end of the guide groove 112; when the driving member 11 is near the top of the pillar 711, the lower pillar 711 abuts against the lower end of the guide groove 112. Thus, the movement range of the driving member 11 is limited by the two second guide pillars 712, effectively controlling the movement stroke of the movable lens 3.

[0111] Optionally, when the two second guide posts 712 abut against the two ends of the guide groove 112, the first guide post 31 does not contact the two first end faces 1115. This avoids the movable lens 3 from being subjected to excessive stress.

[0112] In some implementations, such as Figures 4-7 and Figure 9 As shown, the guide section 4 includes a first guide rod 41 and a second guide rod 42. The first guide rod 41 is fixedly connected to two columns 711, and the movable lens 3 is located between the first guide rod 41 and the second guide rod 42. Both the first lens 32 and the second lens 33 include a support section 341 and a lens barrel 342 disposed on the support section 341. The support section 341 has a first guide post 31, a first groove 343 facing the first guide rod 41, and a second groove 344 facing the second guide rod 42. The driving member 11 moves laterally toward the movable lens 3, and the first groove 343 and the second groove 344 slide along the first guide rod 41 and the second guide rod 42, respectively.

[0113] Specifically, the base 7 includes a base plate 72. Both the first lens 32 and the second lens 33 include lens groups 37, which are fixed inside the lens barrel 342. Two uprights 711 are erected on the base plate 72. The first guide rod 41 is positioned away from the base plate 72, and the second guide rod 42 is positioned close to the base plate 72. This prevents the first lens 32 and the second lens 33 from swaying during movement and ensures that the center of the lens group 37 is in the optical path. By using an insert molding process, a metal insert is placed inside the support portion 341, which improves the structural strength of the support portion 341 and reduces the deformation of the support portion 341.

[0114] In some implementations, such as Figures 6-7 As shown, the carrier portion 341 of the second lens 33 includes a first carrier body 3411 and a second carrier body 3412. The first carrier body 3411 has a first guide post 31, a first slide groove 343, and a second slide groove 344. The lens barrel 342 is disposed on the second carrier body 3412, and the second carrier body 3412 is movably disposed on the first carrier body 3411. The second driving portion 2 also includes a plurality of second magnetic bodies 21 and a first coil 22 spaced apart from the second magnetic bodies 21. One of the second magnetic bodies 21 and the first coil 22 is disposed on the first carrier body 3411, and the other is disposed on the second carrier body 3412. The plurality of second magnetic bodies 21 are arranged along the length direction of the first guide rod 41, and the magnetic poles of two adjacent second magnetic bodies 21 face opposite directions. Further referencing... Figure 8 As shown in state III, the induced magnetic field of the first coil 22 acts on multiple second magnetic bodies 21, so as to drive the lens barrel 342 to move closer to or further away from the imaging part relative to the first carrier 3411 through the second carrier 3412.

[0115] Specifically, there are two second magnetic bodies 21, with the north pole of one second magnetic body 21 and the south pole of the other facing the drive member 11. The second magnetic bodies 21 are disposed on the second support 3412, and the first coil 22 is disposed on the first support 3411. The second drive unit 2 can realize linear adjustment or staged adjustment of the second lens 33. Taking staged adjustment as an example, when the first coil 22 is in a relative position with the two second magnetic bodies 21 respectively, the lens group 37 of the second lens 33 can be further moved along the optical path. Thus, the second drive unit 2 can be used to further realize the focusing control of the lens module.

[0116] In some implementations, such as Figures 6-7 As shown, the first carrier 3411 is provided with two third slide grooves 3413 facing different directions. The second carrier 3412 is provided with two fourth slide grooves 3414 facing the two third slide grooves 3413 respectively. The second lens 33 also includes a plurality of balls 35, which are disposed between the third slide grooves 3413 and the fourth slide grooves 3414. The third slide grooves 3413 move relative to the fourth slide grooves 3414 through the balls 35. Thus, when the second carrier 3412 moves, the center of the second lens 33 can still be in the optical path.

[0117] In some implementations, such as Figures 5-7As shown, the second lens 33 also includes a flexible transmission line 36. The flexible transmission line 36 is disposed on the second lens 33 and bends towards the first lens 32. The flexible transmission line 36 includes a first end 361 and a second end 362. The first end 361 is fixedly connected to the imaging unit. The second end 362 is fixedly connected to the first carrier 3411. This flexible transmission line 36 can be a ribbon cable or a flexible printed circuit board (FPC). Therefore, the bending method of the flexible transmission line 36 in this embodiment can avoid the deformation of the flexible transmission line 36 affecting the driving of the second driving unit 2.

[0118] Figure 10 yes Figure 9 A partially enlarged schematic diagram. The diagram shows the central axis 41a of the first guide rod 41.

[0119] In some implementations, such as Figures 9-10 As shown, the base 7 includes a base plate 72, and two uprights 711 are erected on the base plate 72. The first sliding groove 343 is a V-shaped groove with two mutually perpendicular first contact planes 345. The two first contact planes 345 extend along the axial direction of the first guide rod 41 and abut against the first guide rod 41. The V-shaped groove faces the side of the base plate. The second sliding groove 344 has a second contact plane 346, which extends along the axial direction of the second guide rod 42 and abuts against the second guide rod 42. The second contact plane 346 faces the base plate 72 and forms an angle of 45 degrees with both first contact planes 345.

[0120] It is easy to understand that in this embodiment, the movable lens 3 contacts the second guide rod 42 through the second contact plane 346, so that the horizontal positional accuracy of the movable lens 3 is controlled by the V-groove and the first guide rod 41. This avoids rapid wear of the movable lens 3 during reciprocating motion. At the same time, it reduces the friction between the movable lens 3 and the guide part 4, reducing the driving force of the first drive part 1. In addition, the cross-section of the first guide rod 41 is configured as a circle. The two first contact planes 345 are tangent to the circle, thereby reducing the friction between the V-groove and the first guide rod 41.

[0121] Furthermore, such as Figure 10As shown, in the height direction of the column 711, the second magnetic body 21 and the first magnetic body 23 are located between the first guide rod 41 and the second guide rod 42. The distance between the first magnetic body 23 and the second magnetic body 21 and the central axis 41a is R1. The second contact plane 346 contacts the top surface of the second guide rod 42. In the horizontal direction (perpendicular to the height direction of the column 711), the distance between the central axis 41a and the top surface of the second guide rod 42 is R2. The second guide rod 42 applies a reaction force C1 to the second contact plane 346. Taking the second lens 33 as an example, the magnetic attraction force between the second magnetic body 21 and the driving member 11 is B1. This magnetic attraction force B1 will cause the second lens 33 to generate a torque B. The torque B is the product of R1 and B1. At the same time, this magnetic attraction force B1 will also cause the second contact plane 346 to generate a torque C between the second guide rod 42. The torque C is the product of R2 and C1. Therefore, by configuring the directions of torque B and torque C to be opposite and their absolute values ​​to be the same or approximately the same, the movable lens 3 is prevented from tilting under the influence of the first magnetic body 23 and the second magnetic body 21.

[0122] In some implementations, such as Figure 9 As shown, the driving component 11 is located to the left of the central axis 41a. In the horizontal direction (perpendicular to the height of the column 711), the distance between the driving component 11 and the central axis 41a is R3. Further referring to… Figure 8 As shown, when the driving member 11 moves upward, the first surface 1113 pushes the movable lens 3 to the left in the horizontal direction, generating a force D1 in the height direction. The torque D generated by the driving member 11 is the sum of the product of the force D1 generated by one first surface 1113 and R3, and the product of the force D1 generated by the other first surface 1113 and R3. In this form, the torque C is in the opposite direction to the torque D, and the absolute value of the torque C is the same as the absolute value of the sum of the torques D and B.

[0123] Conversely, when the driving member 11 moves downward, the second surface 1114 pushes the movable lens 3 to the right in the horizontal direction. The second surface 1114 generates a force D2 in the height direction, and the corresponding torque D is opposite in direction to the torque C. In this configuration, the magnetic attraction between the first magnetic body 23 and the second magnetic body 21 and the driving member 11 is configured such that the torque B corresponding to the first magnetic body 23 and the second magnetic body 21 is greater than the torque D of the driving member 11. That is, the absolute value of the torque C is the same as the difference between the torque B and the torque D. Thus, the second contact plane 346 remains in contact with the second guide rod 42, ensuring that the movable lens 3 does not rotate along the central axis 41a during reciprocating motion.

[0124] In some implementations, such as Figure 4 and Figure 10As shown, the first driving unit 1 also includes a second coil 5, which is disposed on the side of the magnetic conductor away from the first lens 32. The axis of the second coil 5 is parallel to the depth direction of the driving groove 111, and the second coil 5 is offset from the driving groove 111. The magnetic field generated by the second coil 5 acts on the magnetic conductor, making the magnetic conductor magnetic. Furthermore, the magnetic field generated by the second coil 5 attracts the magnetic fields generated by the first magnetic body 23 and the second magnetic body 21. This further increases the magnetic attraction force B1 and improves the movement accuracy of the lens module.

[0125] Figure 11 and Figure 12 This is a schematic diagram of the constraint part 8 in different embodiments. In some embodiments, such as... Figure 11 and Figure 12 As shown, the lens module also includes a constraint part 8. The constraint part 8 is disposed on the first lens 32 and the second lens 33. The constraint part 8 is configured to generate a constraint force when the movable lens 3 is in a stationary state, so as to drive the two first guide posts 31 to abut against the inner walls of the first drive groove 1111 and the second drive groove 1112, respectively. During the operation of the lens module, the constraint part 8 can generate a tensile or pushing force between the first lens 32 and the second lens 33 to reduce the impact of the gap between the first guide posts 31 and the drive groove 111 on the movement accuracy of the lens module. This tensile or pushing force is less than the driving force applied by the drive member 11 to the first lens 32 and the second lens 33.

[0126] Further reference Figure 8 As shown, when the constraint part 8 is configured to generate tension, the two first guide posts 31 of the stationary lens module will abut against the first surface 1113 of the first drive groove 1111 and the second surface 1114 of the second drive groove 1112, respectively. This ensures the positional accuracy of the first lens 32 and the second lens 33. In this configuration, the two drive grooves 111 drive the first lens 32 and the second lens 33 forward. When the first lens 32 and the second lens 33 come to a standstill again, the tension generated by the constraint part 8 will again abut the two first guide posts 31 against the first surface 1113 of the first drive groove 1111 and the second surface 1114 of the second drive groove 1112. This reduces the impact of the gap between the first guide posts 31 and the drive grooves 111 on the motion accuracy. When the constraint part 8 is configured to generate thrust, the forces acting on the first guide posts 31 and the drive grooves 111 are reversed, and will not be described further.

[0127] Furthermore, such as Figure 11As shown, the constraint part 8 is configured as an elastic element, which includes a first connecting end 811, a second connecting end 812, and an elastic region 813. The elastic region 813 can be a strip-shaped structure, extending in an S-shape and having its two ends connected to the first connecting end 811 and the second connecting end 812, respectively. The first connecting end 811 is connected to the support part 341 of the first lens 32, and the second connecting end 812 is connected to the support part 341 of the second lens 33. Simultaneously, throughout the entire movement stroke of the first lens 32 and the second lens 33, the elastic region 813 is stretched and deformed, generating the aforementioned tensile force. Therefore, in this embodiment, as the distance between the first lens 32 and the second lens 33 gradually increases, the tensile force can be gradually increased to improve movement accuracy.

[0128] Furthermore, such as Figure 12 As shown, the constraint part 8 is configured as a magnetic structure. The magnetic structure includes a third magnetic body 821 and a fourth magnetic body 822. The polarities of the opposite sides of the third magnetic body 821 and the fourth magnetic body 822 can be configured to be the same or opposite to generate the aforementioned pulling force or pushing force. As the distance between the first lens 32 and the second lens 33 gradually decreases, the magnetic force can be gradually increased to improve the motion accuracy.

[0129] In an alternative implementation, the lens module in the above embodiments can be applied to an electronic device. This electronic device can be a mobile phone or a smartwatch, among other electronic devices.

[0130] In summary, the electronic device in this embodiment has at least one drive groove 111 on the drive member 11 of the lens module, and the movable lens 3 is disposed on the guide part 4 and correspondingly disposed on the drive groove 111. Thus, when the first guide post 31 is inserted into the corresponding drive groove 111, and the drive member 11 moves laterally toward the movable lens 3, the first guide post 31 can slide along the drive groove 111. Under the drive of the guide part 4, the movable lens 3 moves along the optical path, thereby achieving focal length adjustment. Furthermore, configuring the tilt angle of the drive groove 111 can adjust the movement speed and accuracy of the movable lens 3, increasing the imaging performance of the lens module and simplifying the internal structure of the lens module. Simultaneously, the cooperation between the drive groove 111 and the first guide post 31 improves the movement stability of the movable lens 3, enabling continuous focal length adjustment. When the first drive part 1 is not powered on, the drive member 11 can restrict the current position of the movable lens 3, preventing it from shaking. This also reduces wear on the first drive part 1 during long-term use.

[0131] The above descriptions are merely some embodiments of the present invention and are not intended to limit the invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A lens module, characterized in that, include: Seat; Fixed lens; Guiding department; At least one movable lens is movably disposed on the guide portion, the movable lens including a first guide post; as well as The first driving part includes a driving member, the driving member having at least one driving groove corresponding to at least one of the movable lenses, the first guide post being inserted into the corresponding driving groove, and the first driving part, the fixed lens, the guide part and the movable lens being mounted on the base. The driving member moves laterally toward the movable lens, and the first guide post is configured to slide along the driving groove, thereby driving the movable lens to move closer to or away from the imaging unit along the optical path.

2. The lens module according to claim 1, characterized in that, The number of at least one movable lens and at least one drive slot is multiple, and the multiple drive slots are spaced apart and have different lengths and tilt angles.

3. The lens module according to claim 1, characterized in that, The drive chute extends along a straight line or a curve.

4. The lens module according to claim 2, characterized in that, The plurality of movable lenses include a first lens and a second lens, the first lens and the second lens being sequentially disposed on one side of the fixed lens, and the driving member driving the first lens and the second lens to move closer to or away from the fixed lens.

5. The lens module according to claim 4, characterized in that, The plurality of driving grooves include a first driving groove corresponding to the first lens and a second driving groove corresponding to the second lens, wherein the inclination of the first driving groove is greater than that of the second driving groove and the inclination directions are the same.

6. The lens module according to claim 4, characterized in that, The base includes a fixing frame, the fixing frame includes two columns, and the columns are laterally provided with a second guide column; The driving component has two guide slots corresponding to the two columns, and the second guide column passes through the corresponding guide slot; The drive component moves laterally toward the movable lens, and the second guide post slides along the corresponding guide groove.

7. The lens module according to claim 6, characterized in that, The driving component is a magnetic conductor; The lens module further includes a second driving unit, which includes a second magnetic body and a first magnetic body. The second magnetic body is disposed on the side of the second lens near the driving member, and the first magnetic body is disposed on the side of the first lens near the driving member. The magnetic forces of the second magnetic body and the first magnetic body act on the driving member, and the side of the driving member near the movable lens abuts against the two pillars.

8. The lens module according to claim 6, characterized in that, The driving component is a plate-shaped structure, and the driving groove and the guide groove penetrate the plate-shaped structure. The edge of the plate-shaped structure has a rack, and the rack is arranged parallel to the guide groove. The first drive unit further includes a gear and a drive motor disposed on the fixed frame. The gear is connected to the output shaft of the drive motor and meshes with the rack.

9. The lens module according to claim 6, characterized in that, Each of the columns is provided with a plurality of second guide posts, and the plurality of second guide posts are spaced apart along the height direction of the column; The movable lens is positioned close to the fixed lens, with the second guide post near one end of the column abutting against the end of the guide groove; the movable lens is positioned close to the imaging unit, with the second guide post near the other end of the column abutting against the end of the guide groove.

10. The lens module according to claim 7, characterized in that, The guide section includes a first guide rod and a second guide rod; The first guide rod is fixedly connected to the two columns, and the movable lens is located between the first guide rod and the second guide rod; Both the first lens and the second lens include a support portion and a lens barrel disposed on the support portion. The support portion has a first guide post, a first groove facing the first guide rod, and a second groove facing the second guide rod. The driving member moves laterally toward the movable lens, and the first slide groove and the second slide groove slide along the first guide rod and the second guide rod, respectively.

11. The lens module according to claim 10, characterized in that, The base includes a base plate, and the two columns are erected on the base plate; The first groove is a V-shaped groove, which has two mutually perpendicular first contact planes. The two first contact planes extend along the axial direction of the first guide rod and abut against the first guide rod. The second groove has a second contact plane that extends along the axial direction of the second guide rod and abuts against the second guide rod. The second contact plane faces the base plate and forms an angle of 45 degrees with both of the two first contact planes.

12. The lens module according to claim 10, characterized in that, The supporting part of the second lens includes a first supporting body and a second supporting body. The first supporting body has a first guide post, a first sliding groove and a second sliding groove. The lens barrel is disposed on the second supporting body, and the second supporting body is movably disposed on the first supporting body. The second driving unit further includes a plurality of second magnetic bodies and a first coil spaced apart from the second magnetic bodies. One of the second magnetic bodies and the first coil is disposed on the first carrier, and the other is disposed on the second carrier. The plurality of second magnetic bodies are arranged along the length direction of the first guide rod, and the magnetic poles of two adjacent second magnetic bodies face opposite directions. The induced magnetic field of the first coil acts on a plurality of second magnetic bodies to drive the lens barrel closer to or away from the imaging unit via the second carrier.

13. The lens module according to claim 12, characterized in that, The first carrier is provided with two third slide grooves facing different directions, and the second carrier is provided with two fourth slide grooves facing the two third slide grooves respectively; The second lens also includes a plurality of ball bearings disposed between the third slide groove and the fourth slide groove, wherein the third slide groove moves relative to the fourth slide groove via the ball bearings.

14. The lens module according to claim 12, characterized in that, The second lens also includes: A flexible transmission line is disposed on the second lens and bends toward the first lens. The flexible transmission line includes a first end and a second end. The first end is fixedly connected to the imaging unit, and the second end is fixedly connected to the first carrier.

15. The lens module according to any one of claims 4-14, characterized in that, The lens module also includes a constraint part, which is disposed on the first lens and the second lens; The constraint part is configured such that the movable lens is in a stationary state, and the constraint part generates a constraint force to drive the two first guide posts to abut against the inner walls of the two drive grooves respectively.

16. An electronic device, characterized in that, The electronic device includes: The lens module according to any one of claims 1-15.

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