Lens focusing motor and electronic equipment

Abstract

The utility model discloses a lens focusing motor and electronic equipment. The lens focusing motor comprises a shell and a lens carrier movably arranged in the shell. The multiple guide grooves extend in the optical axis direction, and at least two guide grooves are arranged in parallel; the multiple guide rods correspond to the multiple guide grooves one to one and are in sliding fit with the multiple guide grooves in the optical axis direction; the multiple guide rods are installed in the multiple installation grooves in a one-to-one correspondence mode, at least part of each guide rod is located outside the corresponding installation groove, and the installation grooves and the guide rods are relatively fixed in the optical axis direction; the guide grooves are formed in the surface, facing the shell, of the mirror carrier, the mounting grooves are formed in the surface, facing the mirror carrier, of the shell, and / or the guide grooves are formed in the surface, facing the mirror carrier, of the shell, and the mounting grooves are formed in the surface, facing the shell, of the mirror carrier, so that the parallelism deviation between the guide rods is controlled within a small range during mounting; and accurate focusing of the lens is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of camera, in particular to a lens focusing motor and electronic equipment. BACKGROUND

[0002] Periscopic Auto-Focus motor is a kind of motor device used in periscopic lens system, which can automatically adjust the focal length of the lens to realize clear imaging. It is mainly applied in devices with periscopic long-focus lens such as mobile phones, which helps the device to obtain high-quality images when shooting objects at different distances through the auto-focus mechanism.

[0003] It usually works on the principle of electromagnetism. For example, the voice coil motor mainly adjusts the direct current intensity of the coil inside the motor in a constant permanent magnetic field environment, and then accurately controls the position of the lens in the shell, so as to drive the lens to make fine adjustment along the optical axis direction for single focusing, and finally achieve the function of auto-focusing, which provides strong technical support for high-quality imaging.

[0004] In related technologies, the movement of the lens in the shell is mainly supported by double long guide rods or ball bearing structures. However, the long guide rod structure is often built on and connected to the base of the shell, and is mostly fixed by welding, glue dispensing and other technical means. However, due to the limitations of these assembly processes in actual operation, it is difficult to achieve the ideal parallelism between the double guide rods. This poor parallelism will further cause the lens carried by the guide rods to deviate to a certain extent in the optical axis direction, seriously affecting the focusing accuracy and imaging quality of the lens. Practical new type content

[0005] The present application discloses a lens focusing motor and electronic equipment, which can control the parallelism deviation between the guide rods within a small range during installation, and ensure the accurate focusing of the lens.

[0006] In order to achieve the above purpose, the present application discloses a lens focusing motor, comprising:

[0007] A shell having a receiving cavity;

[0008] A lens carrier movably arranged in the receiving cavity;

[0009] A plurality of guide grooves extending along the optical axis direction, at least two of which are arranged in parallel;

[0010] A plurality of guide rods extending along the optical axis direction, the plurality of guide rods corresponding to the plurality of guide grooves one by one and slidingly fitted along the optical axis direction;

[0011] A plurality of installation grooves, the plurality of installation grooves extend along the optical axis direction, the plurality of guide rods are installed in the plurality of installation grooves one by one, at least part of each guide rod is located outside the installation groove, and the installation groove and the guide rod are fixed relative to each other along the optical axis direction;

[0012] The plurality of guide grooves are arranged on the surface of the mirror carrier facing the shell, the plurality of installation grooves are arranged on the surface of the shell facing the mirror carrier, and / or the plurality of guide grooves are arranged on the surface of the shell facing the mirror carrier, and the plurality of installation grooves are arranged on the surface of the mirror carrier facing the shell.

[0013] In a possible implementation, the plurality of guide grooves include a first guide groove, a second guide groove, and a third guide groove, the first guide groove and the second guide groove are arranged in parallel, and the second guide groove and the third guide groove are arranged on the same straight line.

[0014] The plurality of guide rods include a first guide rod, a second guide rod, and a third guide rod arranged one by one corresponding to the first guide groove, the second guide groove, and the third guide groove, the first guide rod and the second guide rod are arranged in parallel, and the third guide rod and the second guide rod are arranged coaxially.

[0015] The plurality of installation grooves include a first installation groove, a second installation groove, and a third installation groove arranged one by one corresponding to the first guide groove, the second guide groove, and the third guide groove, the first installation groove and the second installation groove are arranged in parallel, and the second installation groove and the third installation groove are arranged on the same straight line.

[0016] In a possible implementation, the second guide groove and the third guide groove are in communication, and the second installation groove and the third installation groove are in communication.

[0017] In a possible implementation, a stop portion is arranged between the second installation groove and the third installation groove, one end of the second guide rod close to the third guide rod abuts against the stop portion, and one end of the third guide rod close to the second guide rod abuts against the stop portion.

[0018] In a possible implementation, a guide boss is arranged in the guide groove, a guide surface is formed on a surface of the guide boss away from the groove bottom of the guide groove, and the guide rod and the guide surface are in sliding fit.

[0019] In a possible implementation, the guide surface is a guide plane or a concave surface recessed toward the groove bottom of the guide groove.

[0020] In a possible implementation, the concave surface comprises a planar portion and first and second inclined surface portions arranged obliquely relative to the planar portion, the first and second inclined surface portions being located at two ends of the planar portion along the width direction of the guide groove.

[0021] In a possible implementation, the guide boss comprises first and second side walls arranged oppositely along the optical axis direction, the first and second side walls are connected with the groove bottom of the guide groove, and the included angle between the first and second side walls and the groove bottom of the guide groove is obtuse.

[0022] In a possible implementation, the mounting groove comprises third and fourth side walls extending along the optical axis direction, the third and fourth side walls are arranged obliquely relative to the groove bottom of the mounting groove, so that the slot width of the mounting groove is greater than the groove bottom width of the mounting groove, and each guide rod is fixed in the corresponding mounting groove by a viscous member.

[0023] The application further discloses an electronic device comprising the lens focusing motor.

[0024] Compared with the prior art, the application has the following beneficial effects:

[0025] In the lens focusing motor and the electronic device provided by the application, the lens carrier is arranged in the accommodating cavity of the shell, so that the lens carrier can move for focusing in the shell. The plurality of guide grooves and guide rods extend along the optical axis direction and cooperate to form an accurate motion guide system of the lens carrier during focusing of the lens. The at least two guide grooves are arranged in parallel to provide stable and consistent support and guidance for the lens carrier. The guide rods are mounted in the mounting grooves and partially exposed. On the one hand, the inner walls of the mounting grooves can well position and constrain the guide rods, so that the guide rods are more stable in the optical axis direction. On the other hand, the exposed guide rod portions can better cooperate with the guide grooves to ensure accurate sliding in the optical axis direction and enhance the stability of the motion of the lens carrier. Further, the guide grooves and the mounting grooves are arranged on the opposite surfaces of the lens carrier and the shell. The guide grooves and the mounting grooves have high machining precision, can ensure the dimensional accuracy and shape accuracy of the mounting grooves, and can well control the positions and directions of the guide rods after the guide rods are inserted into the mounting grooves. This helps to control the parallelism deviation between the guide rods within a small range during mounting and ensures accurate focusing of the lens. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0027] Figure 1 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0028] Figure 2 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0029] Figure 3 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model; Figure 2 A partial enlarged view of P of the structure schematic view of the lens focusing motor provided by the embodiment of the utility model;

[0030] Figure 4 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0031] Figure 5 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0032] Figure 6 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0033] Figure 7 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0034] Figure 8 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model; Figure 7 A sectional view of A-A perspective of the structure schematic view of the lens focusing motor provided by the embodiment of the utility model;

[0035] Figure 9 A structure schematic view of a lens focusing motor provided by the embodiment of the utility model;

[0036] Figure 10 A sectional view of B-B perspective of the structure schematic view of the lens focusing motor provided by the embodiment of the utility model; Figure 9

[0037] A structure schematic view of a lens focusing motor provided by the embodiment of the utility model; Figure 11

[0038] A sectional view of C-C perspective of the structure schematic view of the lens focusing motor provided by the embodiment of the utility model. Figure 12 Figure 11 Explanation of reference signs:

[0039] 10 - shell; 11 - containing cavity;

[0040] 10 - shell; 11 - containing cavity;

[0041] 20 - lens carrier;

[0042] ​30 - guide groove; 31 - first guide groove; 32 - second guide groove; 33 - third guide groove; 34 - guide boss; 341 - guide surface; 3411 - guide flat surface; 3412 - concave surface; 34121 - flat portion; 34122 - first inclined surface portion; 34123 - second inclined surface portion; 342 - first side wall; 343 - second side wall; 35 - groove bottom;

[0043] 40 - guide rod; 41 - first guide rod; 42 - second guide rod; 43 - third guide rod;

[0044] 50 - mounting groove; 51 - first mounting groove; 52 - second mounting groove; 53 - third mounting groove; 54 - stop portion; 55 - third side wall; 56 - fourth side wall. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] In the present application, the terms "mounting", "setting", "provided with", "connection", "connected" should be understood broadly. For example, it can be fixed connection, detachable connection, or integral configuration; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication between two devices, elements or components. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0047] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and configurations can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0048] Periscopic Auto-Focus motor A motor device used in periscopic lens system, which can automatically adjust the focal length of the lens to achieve clear imaging. It is mainly applied in devices with periscopic long-focus lens such as mobile phones, etc. Through the auto-focus mechanism, it helps the device to obtain high-quality images when shooting objects at different distances.

[0049] Generally based on electromagnetic principle, a common voice coil motor works mainly on the principle that in a constant permanent magnetic field, the DC current intensity of the coil inside the motor is precisely controlled, thereby precisely controlling the position of the lens in the shell, so as to drive the lens to make fine adjustment along the optical axis direction, and finally achieve the function of automatic focusing, which provides strong technical support for high-quality imaging.

[0050] In the related art, the lens is mainly carried in the shell by a double long guide rod or a ball bearing structure for moving focusing operation of the lens. However, the long guide rod structure is often built on and connected across the base of the shell, and is mostly fixed by welding, dispensing and other technical means. However, due to the limitations of these assembly processes in actual operation, it is difficult to achieve the ideal parallelism between the double guide rods. This poor parallelism further causes the lens carried thereby to be offset to a certain extent in the optical axis direction, which seriously affects the focusing accuracy and imaging quality of the lens.

[0051] In view of this, some embodiments of the present application provide a lens focusing motor and electronic equipment, which can control the parallelism deviation between the guide rods within a small range during installation, and ensure the precise focusing of the lens.

[0052] The present application will be described in detail below through specific embodiments:

[0053] The lens focusing motor of the embodiments of the present application, as shown in Figures 1-12 The lens focusing motor comprises:

[0054] A shell 10, the shell 10 has a receiving cavity 11;

[0055] A lens carrier 20, the lens carrier 20 is movably arranged in the receiving cavity 11;

[0056] A plurality of guide grooves 30, the plurality of guide grooves 30 extend along the optical axis direction, and at least two guide grooves 30 are arranged in parallel;

[0057] A plurality of guide rods 40, the plurality of guide rods 40 extend along the optical axis direction, and the plurality of guide rods 40 correspond one-to-one to the plurality of guide grooves 30 and slide along the optical axis direction;

[0058] A plurality of mounting grooves 50, the plurality of mounting grooves 50 extend along the optical axis direction, and the plurality of guide rods 40 are one-to-one mounted in the plurality of mounting grooves 50, at least part of each guide rod 40 is located outside the mounting groove 50, and the mounting groove 50 and the guide rod 40 are relatively fixed along the optical axis direction;

[0059] The plurality of guide grooves 30 are arranged on a surface of the lens carrier 20 facing the housing 10, the plurality of mounting grooves 50 are arranged on a surface of the housing 10 facing the lens carrier 20, and / or the plurality of guide grooves 30 are arranged on a surface of the housing 10 facing the lens carrier 20, and the plurality of mounting grooves 50 are arranged on a surface of the lens carrier 20 facing the housing 10.

[0060] The lens focusing motor provided by the embodiments of the present application has the lens carrier 20 movably arranged in the accommodating cavity 11 of the housing 10, so that the lens carrier 20 can move for focusing in the housing 10. The plurality of guide grooves 30 and the guide rods 40 extend along the optical axis direction and are matched, thereby constituting an accurate motion guide system of the lens carrier 20 during focusing of the lens. The at least two guide grooves 30 are arranged in parallel, thereby providing stable and consistent support and guidance for the lens carrier 20. The guide rods 40 are mounted in the mounting grooves 50 and partially exposed. On the one hand, the inner walls of the mounting grooves 50 can well position and constrain the guide rods 40, so that the guide rods 40 are more stable in the optical axis direction. On the other hand, the partially exposed guide rods 40 can better cooperate with the guide grooves 30, thereby ensuring accurate sliding in the optical axis direction and enhancing the stability of the motion of the lens carrier 20. Further, the guide grooves 30 and the mounting grooves 50 are arranged on opposite surfaces of the lens carrier 20 and the housing 10, respectively. The guide grooves 30 and the mounting grooves 50 have high machining precision, thereby ensuring the dimensional accuracy and shape accuracy of the mounting grooves 50. After the guide rods 40 are inserted into the mounting grooves 50, the positions and directions of the guide rods 40 can be well controlled, thereby helping to control the parallelism deviation between the guide rods 40 within a small range during installation and ensuring accurate focusing of the lens.

[0061] In the drawings, the X direction is the optical axis direction.

[0062] It should be explained that the optical axis is an important reference line in an optical system, which is a virtual straight line through the center of the optical system (such as a lens). In an ideal optical system, light rays propagate and refract along the optical axis or take the optical axis as the symmetry axis. In the imaging process, the distribution and propagation path of light rays around the optical axis determine key factors such as the position, size and quality of the image. The optical axis direction refers to the direction along the optical axis. In practical applications, the optical axis direction usually points from the object side (the side of the observed or photographed object) to the image side (the side of the imaging). For example, in a camera lens, the optical axis direction is from the photographed object to the imaging sensor inside the camera.

[0063] Specifically, in some embodiments, as shown in Figure 2 , the plurality of guide grooves 30 include a first guide groove 31, a second guide groove 32 and a third guide groove 33. The first guide groove 31 and the second guide groove 32 are arranged in parallel, and the second guide groove 32 and the third guide groove 33 are located on the same straight line.

[0064] As shown in Figure 3 and Figure 4As shown in the drawings, the plurality of guide rods 40 includes a first guide rod 41, a second guide rod 42 and a third guide rod 43 arranged one-to-one with the first guide slot 31, the second guide slot 32 and the third guide slot 33, the first guide rod 41 is arranged in parallel with the second guide rod 42, and the third guide rod 43 is arranged coaxially with the second guide rod 42.

[0065] As shown in the drawings, Figure 5 and Figure 6 the plurality of mounting slots 50 includes a first mounting slot 51, a second mounting slot 52 and a third mounting slot 53 arranged one-to-one with the first guide slot 31, the second guide slot 32 and the third guide slot 33, the first mounting slot 51 is arranged in parallel with the second mounting slot 52, and the second mounting slot 52 is arranged on the same line as the third mounting slot 53.

[0066] The structures of the three guide slots 30, guide rods 40 and mounting slots 50 form a triangular support layout in the plane, and the triangular shape has stability. This structure can better resist external force interference from various directions. In the direction perpendicular to the optical axis, the parallel guide rods 40 slide in the respective corresponding guide slots 30, ensuring lateral stable support, and the coaxial arrangement further enhances the integrity and consistency of the structure in the optical axis direction, making the movement of the components in the optical axis direction more accurate and stable, and quickly and accurately adjusting to the required position to meet the high-precision requirements of focusing, zooming and other functions.

[0067] In other embodiments, the number of guide slots 30, guide rods 40 and mounting slots 50 can also be arranged in parallel in two, thereby achieving the support and guide effect.

[0068] Further, as shown in the drawings, Figure 2 the second guide slot 32 is in communication with the third guide slot 33, and as shown in the drawings, Figure 5 the second mounting slot 52 is in communication with the third mounting slot 53.

[0069] Since the second guide slot 32 and the third guide slot 33 are located on the same line, the second guide slot 32 and the third guide slot 33 are in communication, and the two communicating guide slots 30 can be formed by one mold during manufacturing, which can ensure that the two guide slots 30 have high consistency in size precision and shape precision, and can ensure that the constraints on both sides of the lens during movement are uniform, thereby reducing the lens tilt or deviation caused by the difference between the guide slots 30, improving the movement precision of the lens in the optical axis direction, and facilitating clearer and more accurate imaging effects. The effect of the second mounting slot 52 in communication with the third mounting slot 53 is the same.

[0070] Further, as shown in the drawings, Figure 7 and Figure 8As shown, a stop portion 54 is arranged between the second mounting groove 52 and the third mounting groove 53, and the end of the second guide rod 42 close to the third guide rod 43 abuts against the stop portion 54, and the end of the third guide rod 43 close to the second guide rod 42 abuts against the stop portion 54.

[0071] The stop portion 54 cooperates with the mounting groove 50 to provide clear limiting for the second guide rod 42 and the third guide rod 43, and ensure the position accuracy of the second guide rod 42 and the third guide rod 43 in the mounting groove 50, thereby enhancing the stability of the guiding sliding with the guide groove 30. Since the position of the guide rod 40 is more stable, the movement of the lens carrier 20 guided thereby is also more stable and predictable, and the movement of the lens or the sample carrier and other components during shooting or observation will not be shaking or deviating.

[0072] In other embodiments, the second mounting groove 52 and the third mounting groove 53 can be communicated, and the second guide rod 42 and the third guide rod 43 directly abut against each other.

[0073] The guide rod 40 and the guide groove 30 can adopt direct contact sliding, and further, in the embodiment, as shown in Figure 2 The guide groove 30 is provided with a guide boss 34, and the surface of the guide boss 34 away from the groove bottom 35 of the guide groove 30 forms a guide surface 341, and the guide rod 40 is in sliding cooperation with the guide surface 341.

[0074] The guide surface 341 of the guide boss 34 provides a guide path for the guide rod 40, and the guide boss 34 makes the guide rod 40 mainly contact with the guide surface 341, thereby reducing the actual effective contact area and the friction, which helps to reduce the wear of the guide rod 40 and the guide surface 341 during long-term use. Meanwhile, lubricant and other substances can be stored and transported at other positions of the guide groove 30, thereby further reducing the friction and ensuring the smoothness of the guiding sliding.

[0075] Specifically, as shown in Figure 3 and Figure 4 The guide surface 341 is a guide plane 3411 or a concave surface 3412 recessed toward the groove bottom 35 of the guide groove 30.

[0076] When the guide surface 341 is the guide plane 3411, the structure is simple, easy to manufacture and process, and convenient to ensure the flatness and precision of the plane, and meanwhile, when cooperating with the guide rod 40, the guide plane 3411 can provide a stable and uniform support surface for the guide rod 40.

[0077] The concave surface 3412 can better wrap and constrain the guide rod 40 when cooperating with the guide rod 40. When the guide rod 40 contacts the concave surface 3412, the concave surface 3412 can better disperse the force received by the guide rod 40 to the surrounding structure of the guide groove 30. The concave surface 3412 has a certain anti-falling function. During the operation of the device, even if the guide rod 40 is disturbed by a larger external force, the concave surface 3412 can block the guide rod 40 to a certain extent, preventing the guide rod 40 from falling out of the guide groove 30, so that the guidance of the guide rod 40 is more stable.

[0078] The shape of the concave surface 3412 can have various implementation directions. For example, the concave surface 3412 can be a semicircle or a partial ellipse that matches the shape of the guide rod 40. In the embodiment, as shown in Figure 3 The concave surface 3412 includes a flat portion 34121 and first and second inclined surface portions 34122 and 34123 that are arranged obliquely relative to the flat portion 34121. The first and second inclined surface portions 34122 and 34123 are located at both ends of the flat portion 34121 along the width direction of the guide groove 30.

[0079] The flat portion 34121 provides a main support and guiding basis for the guide rod 40. The first and second inclined surface portions 34122 and 34123 are located at both ends of the flat portion 34121 along the width direction of the guide groove 30, preventing excessive deviation of the guide rod 40 in the width direction. This oblique arrangement allows the concave surface 3412 to guide the guide rod 40 from both sides, further improving the movement accuracy of the guide rod 40. When the guide rod 40 deviates slightly during movement, the first and second inclined surface portions 34122 and 34123 can guide the guide rod 40 back to the flat portion 34121, achieving automatic position correction.

[0080] In the embodiment, as shown in Figure 9 The guide boss 34 includes first and second side walls 342 and 343 that are arranged opposite along the optical axis direction. The first and second side walls 342 and 343 are connected to the groove bottom 35 of the guide groove 30. The included angle between the first and second side walls 342 and 343 and the groove bottom 35 of the guide groove 30 is obtuse.

[0081] From Figure 10As can be seen, the included angle a between the second side wall 343 and the groove bottom 35 is obtuse, the first side wall 342 and the second side wall 343 of the guide boss 34 are oppositely arranged along the optical axis direction and are both connected with the groove bottom 35 of the guide groove 30, and since the included angle a between the first side wall 342 and the second side wall 343 and the groove bottom 35 is obtuse, the side surface of the guide boss 34 presents an outwardly inclined form. On the one hand, the guide boss 34 can better disperse the force to the connecting area of the groove bottom 35 and the side wall when bearing the pressure from the guide rod 40. On the other hand, when the guide groove 30 stores the lubricant, the inclined side wall can facilitate the flow of the lubricant to the direction of the guide rod 40.

[0082] In other embodiments, the included angle between the first side wall 342 and the second side wall 343 and the groove bottom 35 of the guide groove 30 can also be a right angle.

[0083] In the embodiment, as shown in Figs. 5 and 6, the mounting groove 50 includes a third side wall 55 and a fourth side wall 56 extending along the optical axis direction, and the third side wall 55 and the fourth side wall 56 are inclined with respect to the groove bottom of the mounting groove 50, so that the slot width L1 of the mounting groove 50 is greater than the groove bottom width L2 of the mounting groove 50, and each guide rod 40 is fixed in the corresponding mounting groove 50 by the adhesive member. Figure 8 、 Figure 11 and Figure 12 The third side wall 55 and the fourth side wall 56 of the mounting groove 50 extend along the optical axis direction and are inclined with respect to the groove bottom, forming an upper wide and lower narrow shape. On the one hand, the inclined side wall provides a guiding effect in the depth direction of the mounting groove 50, and when the guide rod 40 is inserted into the mounting groove 50, the inclined third side wall 55 and the fourth side wall 56 can help the guide rod 40 to be more accurately positioned to the groove bottom, reducing the possibility of deviation or inclination of the guide rod 40 in the installation process. On the other hand, the mold with the inclined side wall is easier to realize for precision control, ensures higher position accuracy of the guide rod 40 located therein, and facilitates the adhesive member to be coated in the mounting groove 50, achieving better installation effect. The adhesive member is used to fix the guide rod 40 in the mounting groove 50, and the adhesive member can fill the small gap between the guide rod 40 and the mounting groove 50, so that the guide rod 40 is tightly attached to the mounting groove 50.

[0084] The third side wall 55 and the fourth side wall 56 of the mounting groove 50 extend along the optical axis direction and are inclined with respect to the groove bottom, forming an upper wide and lower narrow shape. On the one hand, the inclined side wall provides a guiding effect in the depth direction of the mounting groove 50, and when the guide rod 40 is inserted into the mounting groove 50, the inclined third side wall 55 and the fourth side wall 56 can help the guide rod 40 to be more accurately positioned to the groove bottom, reducing the possibility of deviation or inclination of the guide rod 40 in the installation process. On the other hand, the mold with the inclined side wall is easier to realize for precision control, ensures higher position accuracy of the guide rod 40 located therein, and facilitates the adhesive member to be coated in the mounting groove 50, achieving better installation effect. The adhesive member is used to fix the guide rod 40 in the mounting groove 50, and the adhesive member can fill the small gap between the guide rod 40 and the mounting groove 50, so that the guide rod 40 is tightly attached to the mounting groove 50.

[0085] The electronic device in the embodiment also discloses an electronic device including the lens focusing motor, and the lens focusing motor in the electronic device is the lens focusing motor described above. Therefore, the electronic device in the embodiment has substantially the same technical effects as the lens focusing motor described above. Since the technical effects of the lens focusing motor have been fully described, they will not be repeated here.

[0086] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lens focusing motor characterized by comprising: The application relates to a lens carrier, which comprises a housing having a receiving cavity, a lens carrier movably arranged in the receiving cavity, a plurality of guide grooves extending along an optical axis direction, at least two of the guide grooves being arranged in parallel, a plurality of guide rods extending along the optical axis direction, the guide rods corresponding to the guide grooves one by one and being slidably matched with the guide grooves, a plurality of mounting grooves extending along the optical axis direction, the guide rods being mounted in the mounting grooves one by one, at least part of each guide rod being located outside the mounting groove, and the mounting groove and the guide rod being fixed relative to each other along the optical axis direction. The guide grooves are arranged on the surface of the lens carrier facing the housing, the mounting grooves are arranged on the surface of the housing facing the lens carrier, and / or the guide grooves are arranged on the surface of the housing facing the lens carrier, and the mounting grooves are arranged on the surface of the lens carrier facing the housing. The guide grooves comprise a first guide groove, a second guide groove and a third guide groove, the first guide groove and the second guide groove are arranged in parallel, and the second guide groove and the third guide groove are arranged on the same straight line. The guide rods comprise a first guide rod, a second guide rod and a third guide rod corresponding to the first guide groove, the second guide groove and the third guide groove one by one, the first guide rod and the second guide rod are arranged in parallel, and the third guide rod is coaxially arranged with the second guide rod. The mounting grooves comprise a first mounting groove, a second mounting groove and a third mounting groove corresponding to the first guide groove, the second guide groove and the third guide groove one by one, the first mounting groove and the second mounting groove are arranged in parallel, and the second mounting groove and the third mounting groove are arranged on the same straight line. The second guide groove and the third guide groove are in communication, and the second mounting groove and the third mounting groove are in communication. A stop portion is arranged between the second mounting groove and the third mounting groove, one end of the second guide rod close to the third guide rod is in abutment with the stop portion, and one end of the third guide rod close to the second guide rod is in abutment with the stop portion.

2. The lens focusing motor according to claim 1, wherein A guide boss is arranged in the guide groove, a guide surface is formed on the surface of the guide boss away from the groove bottom of the guide groove, and the guide rod is slidably matched with the guide surface. The guide surface is a guide plane or a concave surface recessed towards the groove bottom of the guide groove. The concave surface comprises a plane portion and first and second inclined surface portions arranged obliquely relative to the plane portion, and the first and second inclined surface portions are arranged at two ends of the plane portion along the width direction of the guide groove.

3. The lens focusing motor according to claim 2, wherein The guide boss comprises first and second side walls arranged relative to each other along the optical axis direction, the first and second side walls are connected with the groove bottom of the guide groove, and the included angle between the first and second side walls and the groove bottom of the guide groove is obtuse.

4. The lens focusing motor according to claim 3, wherein ​ 5. The lens focusing motor according to claim 1, wherein ​ 6. The lens focusing motor according to claim 5, wherein ​ 7. The lens focusing motor according to claim 6, wherein ​ 8. The lens focusing motor according to claim 5, wherein ​ 9. The lens focusing motor according to claim 1, wherein The mounting slot comprises a third side wall and a fourth side wall extending along the direction of the optical axis, the third side wall and the fourth side wall are arranged obliquely relative to the slot bottom of the mounting slot, so that the slot opening width of the mounting slot is greater than the slot bottom width of the mounting slot, and each guide rod is fixed in the corresponding mounting slot by a viscous member.

10. An electronic device, comprising: A lens focusing motor comprising the lens focusing motor according to any one of claims 1-9.

Images