External lens module and electronic equipment

Abstract

The invention discloses an external lens module and electronic equipment, the external lens module is used for being connected to the electronic equipment, the electronic equipment is provided with a mounting surface and a first connecting part, the external lens module comprises an external lens, a mounting bracket and a plurality of floating connecting pieces, a second connecting part of the mounting bracket is connected with the first connecting part, and the floating connecting pieces are connected with the mounting surface. A movable gap is formed between the mounting bracket and the external lens along the optical axis direction, and the mounting bracket and the external lens are movably connected and are relatively fixed along the circumferential direction of the external lens; the plurality of floating connecting pieces are arranged between the external lens and the support body at intervals in the circumferential direction, and each floating connecting piece is used for providing force facing the camera module for the external lens, so that when a gap exists between the image side face of the external lens and the installation face, the floating connecting pieces can push the external lens to move towards the installation face, and the external lens is installed on the support body. Therefore, the image side surface is attached to the mounting surface. When the outer end face of the camera module is deformed or the external lens is inclined, the external lens module can enable the light emitting surface to be attached to the outer end face of the camera module.

Description

Technical Field

[0001] The present invention relates to the technical field of lens modules, and in particular to an external lens module and electronic equipment. Background Art

[0002] With the advancement of technology, portable electronic devices such as mobile phones, tablets, and laptops are becoming increasingly important in people's lives. Photo quality is a key criterion for these portable devices. To improve this quality, these devices are often equipped with external lens modules.

[0003] In the related art, the external lens module is detachably provided on the electronic device, and when the external lens module is connected to the electronic device, the image side surface of the external lens module is in contact with the outer end surface of the camera module on the electronic device.

[0004] However, when the outer end surface of the camera module is deformed or the external lens module is tilted, the image side surface of the external lens module will often be tilted relative to the outer end surface of the camera module on the electronic device, resulting in a deviation in the alignment between the optical communication transmitting end in the external lens module and the optical communication receiving end on the electronic device, thereby causing data transmission to be attenuated or interrupted, affecting the shooting quality. Summary of the Invention

[0005] An embodiment of the present application discloses an external lens module and an electronic device. When the outer end surface of the camera module is deformed or tilted, the image side surface of the external lens module can still be aligned with the outer end surface of the camera module, thereby ensuring that the alignment accuracy between the optical communication transmitting end and the optical communication receiving end is always high.

[0006] To achieve the above objectives, in a first aspect, embodiments of the present application disclose an external lens module for connecting to an electronic device, wherein the electronic device has a mounting surface and a first connecting portion, and the external lens module includes:

[0007] an external lens having an image side surface;

[0008] a mounting bracket, the mounting bracket comprising a bracket body and a second connecting portion disposed on the bracket body, the second connecting portion being configured to connect to the first connecting portion to connect the external lens module to the electronic device, the mounting bracket and the external lens being movably connected with each other with a movable gap along the optical axis and being relatively fixed along the circumference of the external lens;

[0009] A plurality of floating connectors are arranged at intervals between the external lens and the bracket body along the circumferential direction, and each of the floating connectors is used to provide a force toward the mounting surface to the external lens, so that when a gap appears between the image side surface of the external lens and the mounting surface, the floating connector can push the external lens toward the mounting surface to make the image side surface fit the mounting surface.

[0010] In this embodiment, a movable gap is provided between the mounting bracket and the external lens along the optical axis, and the mounting bracket and the external lens are movably connected. The external lens is relatively fixed along the circumference of the external lens, allowing the external lens to move relative to the mounting bracket along the optical axis within the range of the movable gap. Furthermore, a plurality of floating connectors are spaced apart along the circumference between the external lens and the bracket body, each of which is configured to provide a force toward the camera module to the external lens. When a gap forms between the image side surface of the external lens and the mounting surface, the floating connector can push the external lens toward the mounting surface so that the image side surface and the mounting surface are in contact with each other. Specifically, when the mounting surface is deformed or the external lens module is tilted, resulting in a gap between the image side surface of the external lens and the mounting surface, the floating connector can provide a force toward the mounting surface to force the portion of the external lens corresponding to the gap toward the mounting surface. This ensures that the image side surface of the external lens is always in contact with the mounting surface, thereby increasing the alignment accuracy between the external lens and the electronic device and improving image quality.

[0011] Optionally, the floating connection member includes an elastic member, the elastic member extends along the optical axis direction, the elastic member is connected between the external lens and the bracket body, and the elastic member is in a compressed state.

[0012] In this way, the elastic member can always apply a force toward the mounting surface to the external lens, so that when the external lens module is connected to the electronic device, the image side surface of the external lens can always be in contact with the mounting surface, further improving the shooting quality.

[0013] Optionally, the maximum elastic force of the elastic member is a, the weight of the external lens is b, and 2≤a / b≤3.

[0014] Therefore, when the elastic member is subjected to pressure from the external lens, elastic failure is less likely to occur, so that the elastic member can have a longer service life.

[0015] Optionally, a first sliding connection portion is provided on the bracket body, and a second sliding connection portion is provided on the external lens. The first connection portion and the second sliding connection portion are slidingly connected along the optical axis direction and relatively fixed along the circumferential direction. A limiting member is provided between the first sliding connection portion and the second sliding connection portion, and the limiting member is used to limit the first sliding connection portion and the second sliding connection portion from slipping off along the optical axis direction.

[0016] Therefore, the limiting member can effectively prevent the mounting bracket and the external lens from slipping along the optical axis, thereby preventing the external lens from accidentally falling off during the process of unscrewing the external lens module from the electronic device.

[0017] Optionally, a connecting hole is provided on the first sliding connecting part, and a connecting column is provided on the second sliding connecting part. The connecting hole and the connecting column slide together along the direction of the optical axis. One end of the connecting column extends out of the connecting hole. The limiting member is provided at the protruding end of the connecting column. Along the radial direction of the connecting hole, the maximum size of the limiting member is larger than the aperture of the connecting hole. Along the direction of the optical axis, the movable gap is formed between the limiting member and the first sliding connecting part.

[0018] Therefore, the size of the external lens and the mounting bracket along the direction perpendicular to the optical axis is not easily increased, so that the size of the external lens module along the direction perpendicular to the optical axis can be smaller.

[0019] Optionally, there are multiple connecting posts, each of which corresponds to the multiple elastic members, and the extending end of each connecting post is provided with the limiting member. There are multiple connecting holes, each of which corresponds to the multiple connecting posts.

[0020] The elastic member is sleeved on the corresponding connecting column, and one end of the elastic member abuts against the corresponding limiting member, and the other end of the elastic member abuts against the first sliding connection part, or a flange is provided on the inner wall of the corresponding connecting hole, and the other end of the elastic member abuts against the flange.

[0021] Thus, the connecting column can provide a certain support to the elastic member to prevent the elastic member from being skewed during the deformation process.

[0022] Optionally, a threaded hole is provided at the protruding end of the connecting column, and the limiting member includes a screw, which is screwed into the threaded hole, and the outer diameter of the screw head of the screw is larger than the hole diameter of the connecting hole.

[0023] In this way, the connection between the limiting member and the connecting column can be easily disassembled.

[0024] Optionally, a plurality of floating connectors are evenly arranged along the circumferential direction between the external lens and the bracket body.

[0025] Thus, along the circumferential direction, the force provided by the multiple floating connectors to the external lens toward the mounting surface can be relatively uniform, so that when a gap appears in each area between the image side surface of the external lens and the outer end surface of the camera module, the external lens can be moved toward the mounting surface, thereby achieving a better fit between the image side surface of the external lens and the mounting surface.

[0026] Optionally, the second connecting portion is configured to be rotatably connected to the first connecting portion so as to screw the bracket body into or out of the electronic device along the circumferential direction.

[0027] Therefore, when the external lens module is connected to or removed from the electronic device, it is only necessary to rotate the bracket body along the circumferential direction, which is convenient and quick to operate.

[0028] Optionally, the external lens module further includes a rotating ring, which is arranged around the bracket body, and the rotating ring is used to rotate to drive the bracket body to rotate, so that the second connecting part and the first connecting part rotate relative to each other.

[0029] Therefore, rotating the rotating ring can drive the bracket body to rotate along the circumferential direction, so as to connect the lens module to the electronic device or remove it from the electronic device, making the operation more convenient and quick.

[0030] Optionally, the first connecting portion includes a connecting protrusion, the bracket body is an annular structure, and the bracket body is arranged around the connecting protrusion;

[0031] The outer peripheral wall of the connecting protrusion is provided with an external thread, the second connecting portion includes an internal thread provided on the inner wall of the hole of the bracket body, the internal thread matches the external thread, and the external lens module and the electronic device are screwed together through the internal thread and the external thread; or,

[0032] A slider and a slide groove are provided on the outer peripheral wall of the connecting protrusion, and the second connecting part includes a slider and the other of the slide groove provided on the inner wall of the hole of the bracket body. The slide groove extends along the circumferential direction, and the external lens module and the electronic device are slidably embedded in the slide groove and rotatably connected through the slider.

[0033] In this way, the external lens module can be screwed onto the electronic device, or the external lens module can be screwed onto the electronic device by cooperating with the second slider and the second sliding groove. The structure is simple and easy to implement, and the external lens module is not likely to fall off accidentally when pulled by external force.

[0034] Optionally, the first connecting portion includes a first magnetic member, and the second connecting portion includes a second magnetic member, and a magnetic attraction force can be generated between the first magnetic member and the second magnetic member to connect the external lens module to the electronic device.

[0035] Therefore, the external lens module only needs to be moved toward the electronic device to be connected to the electronic device through the magnetic attraction generated between the first magnetic member and the second magnetic member, which is convenient to operate.

[0036] Optionally, an optical communication receiving end and a positioning hole are further provided on the mounting surface, and an optical communication transmitting end and a positioning column are provided on the image side surface of the external lens, and the positioning column extends along the optical axis direction of the external lens. When the external lens module is connected to the electronic device, the positioning column is at least partially embedded in the positioning hole, and the optical communication transmitting end and the optical communication receiving end are opposite to each other along the optical axis.

[0037] Therefore, through the cooperation between the positioning column and the positioning hole, when the external lens module is connected to the electronic device, the optical communication transmitting end and the optical communication receiving end can have a higher alignment accuracy, effectively avoiding the attenuation or interruption of optical communication transmission due to the low alignment accuracy between the optical communication transmitting end and the optical communication receiving end, and further improving the shooting quality.

[0038] In a second aspect, the present application also discloses an electronic device.

[0039] The electronic device has a mounting surface, a camera module is arranged on the mounting surface, and a positioning hole, a first connecting portion and an optical communication receiving end are arranged on the outer end surface of the camera module;

[0040] The electronic device also includes the external lens module described in any one of the first aspects, wherein a positioning column and an optical communication transmitting end are provided on the image side surface of the external lens in the external lens module, and the second connecting portion is rotatably connected to the first connecting portion so as to screw the mounting bracket of the external lens module into or out of the electronic device along the circumferential direction, and the positioning column extends along the optical axis direction of the external lens. When the external lens module is connected to the electronic device, the positioning column is at least partially embedded in the positioning hole, and the optical communication transmitting end and the optical communication receiving end are opposite to each other along the optical axis.

[0041] In this embodiment, the external lens module is the external lens module described in any one of the first aspects above, and thus, the external lens module can produce the same or similar beneficial effects as described above.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] In the present application, a movable gap is provided between the mounting bracket and the external lens along the optical axis, and the mounting bracket and the external lens are movably connected. The external lens is relatively fixed along the circumference of the external lens, and the external lens can move relative to the mounting bracket along the optical axis within the range of the movable gap. Furthermore, a plurality of floating connectors are spaced apart along the circumference between the external lens and the bracket body, each of which is configured to provide a force toward the mounting surface to the external lens. When a gap forms between the image side surface of the external lens and the mounting surface, the floating connector can push the external lens toward the mounting surface so that the image side surface aligns with the mounting surface. Specifically, when the outer end surface of the camera module is deformed or the external lens module is tilted, resulting in a gap between the image side surface of the external lens and the mounting surface, the floating connector will provide a force toward the mounting surface to the external lens, causing the portion of the external lens corresponding to the gap to move toward the mounting surface. This ensures that the image side surface of the external lens is always aligned with the mounting surface, thereby increasing the alignment accuracy between the external lens and the electronic device and improving image quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 This is an exploded diagram of an external lens module and some electronic equipment provided in an embodiment of the present application;

[0046] Figure 2 This is a cross-sectional view of a first external lens module and part of an electronic device provided in an embodiment of the present application;

[0047] Figure 3 is a cross-sectional view of a second external lens module and part of an electronic device provided in an embodiment of the present application;

[0048] Figure 4 is a bottom view of the combination of the external lens and the fixing bracket provided in an embodiment of the present application;

[0049] Figure 5 is a cross-sectional view of a third external lens module and part of an electronic device provided in an embodiment of the present application;

[0050] Figure 6 yes Figure 5 A magnified view of position A in the middle;

[0051] Figure 7 is a stereoscopic diagram of an external lens provided in an embodiment of the present application;

[0052] Figure 8 is a three-dimensional diagram of a rotating ring provided in an embodiment of the present application;

[0053] Figure 9 is a cross-sectional view of the external lens module and part of the electronic device when the second guide portion provided by an embodiment of the present application does not push the first guide portion;

[0054] Figure 10 is a cross-sectional view of an external lens module and part of an electronic device when a positioning post provided by an embodiment of the present application is out of a positioning hole;

[0055] Figure 11 is an exploded view of the rotating ring and the mounting bracket provided in an embodiment of the present application;

[0056] Figure 12 is a three-dimensional diagram of a mounting bracket provided in an embodiment of the present application;

[0057] Figure 13 This is a three-dimensional diagram of a mounting bracket provided in an embodiment of the present application after being flipped at a certain angle;

[0058] Figure 14 This is a three-dimensional image of a rotating ring provided by an embodiment of the present application after being flipped at a certain angle;

[0059] Figure 15 This is a top view of the mounting bracket and the rotating ring assembly when the first anti-rotation portion and the second anti-rotation portion are not in contact with each other, as provided in an embodiment of the present application;

[0060] Figure 16 It is a top view of the combination of the mounting bracket and the rotating ring when the first anti-rotation part and the second anti-rotation part abut against each other provided by an embodiment of the present application.

[0061] Description of reference numerals:

[0062] 1-External lens; 11-Image side end; 111-Image side; 112-Step surface; 12-First guide portion; 121-Groove; 1211-Guide surface; 1212-Plane segment; 13-Positioning column; 14-Second sliding connection portion; 15-Limiting member; 151-Screw; 16-Connecting column; 161-Threaded hole; 2-Mounting bracket; 21-Bracket body; 211-First slide groove; 22-Second connecting portion; 23-First anti-rotation portion; 231-First anti-rotation block; 24- First sliding connection part; 25-connecting hole; 3-rotating ring; 31-ring body; 311-first slider; 32-second guide part; 321-protrusion; 33-second anti-rotation part; 331-second anti-rotation block; 4a-floating connection part; 4-elastic part; 5-resetting part; 6a-optical communication transmitting end; 6b-optical communication receiving end; 10-external lens module; 20-electronic device; 210-mounting surface; 220-positioning hole; 230-first connection part; 240-camera module. DETAILED DESCRIPTION

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0064] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0065] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0066] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0067] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0068] In view of the problems described in the background technology, the present invention provides an external lens module and an electronic device. When the outer end surface of the camera module is deformed or the external lens module is tilted, the image side surface of the external lens module can still be fitted with the outer end surface of the camera module, thereby ensuring that the alignment accuracy of the optical communication transmitting end and the optical communication receiving end is always high.

[0069] The technical solution of this application will be described in detail below with reference to specific embodiments and drawings.

[0070] The embodiment of the present application provides an external lens module, such as Figure 1-Figure 3 As shown, the external lens module 10 is used to connect to the electronic device 20. The electronic device 20 has a mounting surface 210 and a first connecting portion 230. The external lens module 10 includes an external lens 1, a mounting bracket 2, and a plurality of floating connectors 4a. The external lens 1 has an image side surface 111; the mounting bracket 2 includes a bracket body 21 and a second connecting portion 22 provided on the bracket body 21. The second connecting portion 22 is used to connect to the first connecting portion 230 to connect the external lens module 10 to the electronic device 20. The mounting bracket 2 and the external lens 1 are aligned along the optical axis (e.g., Figure 1 In the direction shown by x in the figure), there is a movable gap and a movable connection, along the circumference of the external lens 1 (as shown in the figure Figure 1 Along the circumferential direction, a plurality of floating connectors 4a are spaced apart between the external lens 1 and the bracket body 21. Each floating connector 4a is used to provide a force toward the mounting surface 210 to the external lens 1. When a gap appears between the image side surface 111 of the external lens 1 and the mounting surface 210, the floating connector 4a can push the external lens 1 toward the mounting surface 210 to make the image side surface 111 fit the mounting surface 210.

[0071] In this embodiment, the mounting bracket 2 and the external lens 1 are provided with a movable gap along the optical axis and are movably connected, and the external lens 1 is relatively fixed along the circumference. Along the optical axis, the external lens 1 can be moved within the range of the movable gap relative to the mounting bracket 2. Furthermore, a plurality of floating connectors 4a are spaced apart along the circumference between the external lens 1 and the bracket body 21. Each floating connector 4a is used to provide a force toward the mounting surface 210 to the external lens 1. When a gap appears between the image side surface 111 of the external lens 1 and the mounting surface 210, the floating connector 4a can push the external lens 1 toward the mounting surface 210 so that the image side surface 111 fits the mounting surface 210. That is, when the electronic device includes a camera module 240 disposed on the mounting surface 210, the external lens module 10 is connected to the electronic device 20, and the image side surface 111 needs to fit the camera module 240. When the outer end surface of the external lens 1 is in contact with the outer end surface of the camera module 240, the outer end surface of the camera module 240 is deformed or the external lens module is tilted, resulting in a gap between the image side surface 111 of the external lens 1 and the outer end surface of the camera module 240, the floating connector 4a will provide a force toward the mounting surface 210 to the external lens 1, so that the part of the external lens 1 corresponding to the gap can move toward the mounting surface 210, so that the image side surface 111 of the external lens 1 can always be in contact with the outer end surface of the camera module 240, so that the alignment accuracy between the external lens 1 and the camera module 240 can be higher, thereby improving the shooting quality.

[0072] It should be explained that the above-mentioned electronic device 20 may include a camera module 240 or may not include the camera module 240, and this is not limited here. The following is a detailed description using the example where the electronic device 20 includes a camera module 240 arranged on the mounting surface 210, the first connecting portion 230 is arranged on the camera module 240, and when the external lens module 10 is connected to the electronic device 20, the image side surface 111 of the external lens module 10 is in contact with the outer end surface of the camera module 240.

[0073] The external lens 1 can be any one of a fisheye lens, a wide-angle lens, a macro lens, a zoom lens, a telephoto lens, etc., and is not limited here.

[0074] The number of floating connectors 4a can be two, three or more, which is not limited here.

[0075] In addition, a plurality of floating connectors 4 a may be evenly disposed along the circumferential direction between the external lens 1 and the bracket body 21 .

[0076] Thus, along the circumferential direction, the force provided by the multiple floating connectors 4a to the external lens 1 toward the camera module 240 can be relatively uniform, so that when a gap appears in each area between the image side surface 111 of the external lens 1 and the outer end surface of the camera module 240, the external lens 1 can be moved toward the mounting surface 210, thereby making the image side surface 111 of the external lens 1 and the outer end surface of the camera module 240 fit better, thereby making the alignment accuracy between the external lens 1 and the camera module 240 higher.

[0077] Exemplarily, when the number of floating connectors 4a is three, the three floating connectors 4a are evenly arranged between the external lens 1 and the bracket body 21 along the circumferential direction, that is, the angle between two adjacent floating connectors 4a along the circumferential direction can be 120°, so as to ensure a better fitting effect between the image side surface 111 of the external lens 1 and the outer end surface of the camera module 240, while also making the number of floating connectors 4a smaller. On the one hand, this reduces the cost, and on the other hand, it is less difficult to connect a smaller number of floating connectors 4a between the external lens 1 and the bracket body 21, thereby reducing the difficulty of setting up the external lens module 10.

[0078] The above-mentioned floating connector 4a can have multiple implementation methods. In one possible implementation method, the floating connector 4a may include two magnetic parts arranged opposite to each other along the optical axis, one of which is arranged on the external lens 1, and the other is arranged on the bracket body 21, and the opposite surfaces of the two magnetic parts are opposite magnetic poles, so that an attractive magnetic force can be generated between the two magnetic parts, so that the external lens 1 can always be subjected to a force toward the mounting surface 210, so that when a gap appears between the image side surface 111 of the external lens 1 and the outer end surface of the camera module 240, the external lens 1 can be moved toward the camera module 240 until the image side surface 111 is in contact with the outer end surface of the camera module 240. The structure is simple and easy to implement.

[0079] In another implementation of the floating connection 4a, as Figure 4-Figure 6 As shown, the floating connection member 4a may include an elastic member 4, which extends along the optical axis. The elastic member 4 is connected between the external lens 1 and the bracket body 21, and the elastic member 4 is in a compressed state.

[0080] In this way, the elastic member 4 can always apply a force toward the mounting surface 210 to the external lens 1, so that when the external lens module 10 is connected to the electronic device 20, the image side surface 111 of the external lens 1 can always fit with the outer end surface of the camera module 240, further improving the shooting quality.

[0081] For example, when the outer end surface of the camera module 240 is not deformed or the external lens module is not tilted, that is, the external lens module 10 is connected to the electronic device 20 and the image side surface 111 is in contact with the outer end surface of the camera module 240, the elastic member 4 can apply a force toward the mounting surface 210 to the external lens 1, so that the external lens 1 has a tendency to move toward the mounting surface 210, thereby making the contact between the image side surface 111 and the outer end surface of the camera module 240 tighter, which is beneficial to improving the shooting quality.

[0082] When the outer end face of the camera module 240 is deformed or the external lens module is tilted, the image side face 111 is likely to partially abut against the outer end face of the camera module 240, and there is a gap between the other parts, causing different changes in the elastic deformation of the multiple elastic parts 4. For example, the deformation amount of the elastic part 4 corresponding to the gap changes greatly, and is compressed again, so that the elastic force of the elastic part 4 becomes larger, and the force provided by the elastic part 4 to the external lens 1 toward the camera module 240 becomes larger, so that the external lens 1 can move toward the camera module 240 more easily, and then the image side face 111 of the external lens 1 can be fitted with the outer end face of the camera module 240 again, further ensuring the shooting quality.

[0083] The elastic member 4 can be any one of a spring, a spring washer, a rubber column, etc., which is not limited here.

[0084] Optionally, the maximum elastic force of the elastic member 4 may be a, the weight of the external lens 1 may be b, and 2≤a / b≤3.

[0085] Therefore, when the elastic member 4 is subjected to the pressure of the external lens 1, it is less likely to experience elastic failure, so that the elastic member 4 can have a longer service life. After the external lens module 10 is used for a long time, the image side surface 111 of the external lens module 10 can still be fitted with the outer end surface of the camera module 240, and the external lens module 10 can be unscrewed from the electronic device 20 by rotating the rotating ring 3, thereby providing the user with a better usage experience.

[0086] The maximum elastic force of the elastic member 4 may be 2 times, 2.5 times, 3 times, or any value between 2 times and 3 times the weight of the external lens 1 , which is not limited here.

[0087] In some embodiments, as Figure 4-Figure 6As shown, a first sliding connection portion 24 is provided on the bracket body 21, and a second sliding connection portion 14 is provided on the external lens 1. The first sliding connection portion 24 and the second sliding connection portion 14 are slidingly connected along the optical axis direction and relatively fixed along the circumferential direction. A limiting member 15 is provided between the first sliding connection portion 24 and the second sliding connection portion 14, and the limiting member 15 is used to limit the first sliding connection portion 24 and the second sliding connection portion 14 from sliding off along the optical axis direction.

[0088] Therefore, the limiting member 15 can effectively prevent the mounting bracket 2 and the external lens 1 from slipping along the optical axis, thereby preventing the external lens 1 from accidentally falling off during the process of unscrewing the external lens module 10 from the electronic device 20 .

[0089] In which, the external lens 1 may have an image side end 11, the image side end 11 includes an image side surface 111 and a stepped surface 112 arranged around the image side surface 111, the image side surface 111 is used to pass light emitted from the external lens 1, and the second sliding connection portion 14 can be arranged on the stepped surface 112 of the image side end 11 to prevent the second sliding connection portion 14 from affecting the light emitted from the external lens 1.

[0090] In addition, the sliding connection between the first sliding connection part 24 and the second sliding connection part 14 along the optical axis direction can be implemented in a variety of ways. In one possible implementation, a slider can be provided on the first sliding connection part 24, and a sliding groove extending along the optical axis direction can be provided on the second sliding connection part 14. The slider can be slidably embedded in the sliding groove, and the limit member 15 can be provided at the end of the sliding groove away from the mounting bracket 2. The structure is simple and easy to implement.

[0091] In another embodiment, the first sliding connection portion 24 and the second sliding connection portion 14 can be connected in a sliding manner along the optical axis. Figure 5 and Figure 6 As shown, a connecting hole 25 is provided on the first sliding connecting part 24, and a connecting column 16 is provided on the second sliding connecting part 14. The connecting column 16 and the connecting hole 25 slide together along the optical axis. One end of the connecting column 16 extends out of the connecting hole 25. The limiting member 15 is provided at the protruding end of the connecting column 16. Along the radial direction of the connecting hole 25, the maximum size of the limiting member 15 is larger than the aperture of the connecting hole 25. Along the optical axis, a movable gap is formed between the limiting member 15 and the first sliding connecting part 24.

[0092] Therefore, by slidingly cooperating with the connecting hole 25 of the connecting column 16 in the direction of the optical axis, the first sliding connection part 24 and the second sliding connection part 14 can be slidably connected in the direction of the optical axis, and relatively fixed in the circumferential direction, and the limit member 15 is provided at the protruding end of the connecting column 16, which can effectively prevent the first sliding connection part 24 and the second sliding connection part 14 from slipping in the direction of the optical axis. The structure is simple and easy to implement, and it is not easy to increase the size of the external lens 1 and the mounting bracket 2 in the direction perpendicular to the optical axis, so that the size of the external lens module 10 in the direction perpendicular to the optical axis can be smaller.

[0093] In addition, there are multiple connecting columns 16, and multiple connecting columns 16 are arranged in a one-to-one correspondence with multiple elastic members 4. A limiting member 15 is provided at the protruding end of each connecting column 16. There are multiple connecting holes 25, and multiple connecting holes 25 are arranged in a one-to-one correspondence with multiple connecting columns 16; the elastic member 4 is sleeved on the corresponding connecting column 16, and one end of the elastic member 4 is abutted against the corresponding limiting member 15, and the other end of the elastic member 4 is abutted against the first sliding connection part 24, or a flange is provided on the inner wall of the corresponding connecting hole 25, and the other end of the elastic member 4 is abutted against the flange.

[0094] Therefore, the connecting column 16 can provide a certain support to the elastic member 4 to prevent the elastic member 4 from being skewed during the deformation process, so that the elastic member 4 can only be deformed along the optical axis direction, that is, the elastic force of the elastic member 4 can only be along the optical axis direction.

[0095] The number of the connecting posts 16 and the connecting holes 25 is set to correspond to the number of the elastic members 4 , and can be two, three or more, which is not limited here.

[0096] The above-mentioned limiting member 15 can be implemented in various ways. For example, the limiting member 15 can include any one of a screw, a limiting block, a limiting protrusion, etc., which is not limited here.

[0097] In addition, there may be multiple connections between the limiting member 15 and the protruding end of the connecting column 16. In one possible implementation, the protruding end of the connecting column 16 may be provided with a card slot, and the limiting member 15 may include a card block, and the maximum radial dimension of the card block along the connecting hole 25 is larger than the aperture of the connecting hole 25, and the card block is carded in the card slot.

[0098] In another embodiment of the connection between the stopper 15 and the extended end of the connecting column 16, as shown in FIG. Figure 6 As shown, a threaded hole 161 is provided at the protruding end of the connecting column 16 , and the limiting member 15 includes a screw 151 , which is screwed into the threaded hole 161 , and the outer diameter of the screw head of the screw 151 is larger than the hole diameter of the connecting hole 25 .

[0099] Thus, the connection between the stopper 15 and the connecting column 16 can be easily disassembled, making assembly and disassembly convenient, and the cost of the stopper 15 can be relatively low, thereby reducing the cost of the external lens module 10.

[0100] The connection between the first connection part 230 and the second connection part 22 can be implemented in various ways. In one possible implementation, the second connection part 22 is used to be rotatably connected to the first connection part 230 to screw the bracket body 21 into or out of the electronic device 20 along the circumferential direction.

[0101] Therefore, when connecting the external lens module 10 to the electronic device 20 or removing it from the electronic device 20, it is only necessary to rotate the bracket body 21 circumferentially. The operation is convenient and quick, and the external lens module 10 is not likely to fall off accidentally when pulled by external force.

[0102] Optionally, the first connecting portion 230 includes a connecting protrusion, the bracket body 21 is an annular structure, and the bracket body 21 is arranged around the connecting protrusion. The outer peripheral wall of the connecting protrusion is provided with an external thread, and the second connecting portion 22 includes an internal thread provided on the inner wall of the hole of the bracket body 21, the internal thread and the external thread matching each other, and the external lens module 10 and the electronic device 20 are screwed together by the internal thread and the external thread; or, the outer peripheral wall of the connecting protrusion is provided with a slider or a slide groove, and the second connecting portion 22 includes the other of the slider and the slide groove provided on the inner wall of the hole of the bracket body 21, and the slide groove extends along the circumferential direction, and the external lens module 10 and the electronic device 20 are rotatably connected by the slider slidably embedded in the slide groove.

[0103] Thus, the external lens module 10 can be screwed onto the electronic device 20 , or the external lens module 10 can be screwed onto the electronic device 20 by cooperating with the slider and the slide groove. The structure is simple and easy to implement.

[0104] In another method of connecting the first connecting part 230 and the second connecting part 22, the first connecting part 230 includes a first magnetic part, and the second connecting part 22 includes a second magnetic part. The first magnetic part and the second magnetic part can generate a magnetic attraction force to connect the external lens module 10 to the electronic device 20.

[0105] Therefore, the external lens module 10 only needs to be moved toward the electronic device 20 to be connected to the electronic device 20 through the magnetic attraction generated between the first magnetic member and the second magnetic member, which is convenient to operate.

[0106] In some embodiments, as Figure 1-Figure 3As shown, the external lens module 10 further includes a rotating ring 3 , which is disposed around the bracket body 21 . The rotating ring 3 is configured to rotate to drive the bracket body 21 to rotate, so that the second connecting portion 22 and the first connecting portion 230 rotate relative to each other.

[0107] Therefore, rotating the rotating ring 3 can drive the bracket body 21 to rotate along the circumferential direction, so as to connect the lens module to the electronic device 20 or remove it from the electronic device 20, making the operation more convenient and quick.

[0108] The rotating ring 3 and the bracket body 21 may be rotatably connected or fixedly connected, which is not limited here.

[0109] In other embodiments, Figure 1-Figure 3 As shown, the mounting surface 210 is further provided with an optical communication receiving terminal 6b and a positioning hole 220. When the electronic device 20 includes a camera module 240 arranged on the mounting surface 210, it can be that the optical communication receiving terminal 6b and the positioning hole 220 are provided on the outer end surface of the camera module 240, and the optical communication transmitting terminal 6a and the positioning column 13 are provided on the image side surface 111 of the external lens 1. The positioning column 13 extends along the optical axis direction of the external lens 1. When the external lens module 10 is connected to the electronic device 20, the positioning column 13 is at least partially embedded in the positioning hole 220, and the optical communication transmitting terminal 6a and the optical communication receiving terminal 6b are opposite to each other along the optical axis.

[0110] Therefore, through the cooperation between the positioning column 13 and the positioning hole 220, when the external lens module 10 is connected to the electronic device 20, the optical communication transmitting end 6a and the optical communication receiving end 6b can have a higher alignment accuracy, effectively avoiding the attenuation or interruption of optical communication transmission due to the low alignment accuracy between the optical communication transmitting end 6a and the optical communication receiving end 6b, thereby further improving the shooting quality.

[0111] In addition, if Figure 1-Figure 3As shown, the external lens module 10 includes an external lens 1, a mounting bracket 2 and a rotating ring 3. A first guide portion 12 is provided on the image side end 11 of the external lens 1. The mounting bracket 2 includes a bracket body 21, a second connecting portion 22 and a first anti-rotation portion 23. The second connecting portion 22 and the first anti-rotation portion 23 are both provided on the bracket body 21. The bracket body 21 is slidably connected to the external lens 1 along the optical axis direction and relatively fixed along the circumference of the external lens 1. There is a movable gap between the bracket body 21 and the external lens 1 along the optical axis direction. An elastic member 4 is connected between the bracket body 21 and the external lens 1. The elastic member 4 is used to apply a force toward the mounting surface 210 to the external lens 1 so that the image side end 11 abuts against the mounting surface 210. The second connecting portion 22 is used to be rotatably connected to the first connecting portion 230 so as to The mounting bracket 2 is screwed into or out of the electronic device 20 in the circumferential direction to achieve a detachable connection between the external lens 1 and the electronic device 20; the rotating ring 3 includes a ring body 31, a second guide portion 32 and a second stop portion 33. The ring body 31 is arranged around the image side end 11 and is rotatably connected to the mounting bracket 2. The second guide portion 32 is arranged at the end of the ring body 31 facing the external lens 1, and the second stop portion 33 is arranged on the ring body 31. When the rotating ring 3 rotates in the screwing-out direction, the second guide portion 32 is used to push the first guide portion 12 to move along the optical axis in the direction away from the rotating ring 3, thereby driving the positioning column 13 to disengage from the positioning hole 220. After the positioning column 13 disengages from the positioning hole 220, the second stop portion 33 can abut against the first stop portion 23 to limit the rotation of the mounting bracket 2 relative to the rotating ring 3.

[0112] Thus, by providing a positioning hole 220 on the mounting surface 210 of the electronic device 20 and providing a positioning post 13 on the image-side end 11 of the external lens 1, the positioning post 13 extends along the optical axis direction of the external lens 1 and is used to be at least partially embedded in the positioning hole 220 when the external lens module 10 is connected to the electronic device 20. This can ensure that the connection between the external lens module 10 and the electronic device 20 has a higher precision, so that the alignment accuracy between the optical communication transmitting end 6a provided on the external lens 1 and the optical communication receiving end 6b provided on the electronic device 20 is higher, thereby achieving a better optical communication effect. The second connecting portion 22 of the mounting bracket 2 is used to be rotatably connected to the first connecting portion 230 so as to screw the mounting bracket 2 into or out of the electronic device 20 along the circumferential direction. The bracket body 21 and the external lens 1 are relatively fixed along the circumferential direction of the external lens 1, so that when the external lens module 10 needs to be connected to the electronic device 20, the mounting bracket 2 can be screwed into the electronic device 20 along the circumferential direction until the positioning column 13 is embedded in the positioning hole 220. At this time, a sound similar to "snap" can be heard, and if there is a sense of obstruction when continuing to screw the mounting bracket 2, it can be considered that the mounting bracket 2 is screwed into place, and the operation of connecting the external lens module 10 to the electronic device 20 is completed. The operation is convenient and quick.

[0113] The bracket body 21 is slidably connected to the external lens 1 along the optical axis, and is relatively fixed along the circumference of the external lens 1. There is a movable gap between the bracket body 21 and the external lens 1 along the optical axis. An elastic member 4 is connected between the bracket body 21 and the external lens 1. The elastic member 4 is used to apply a force toward the mounting surface 210 to the external lens 1 so that the image side end 11 abuts against the mounting surface 210. Therefore, when the external lens module 10 is connected to the electronic device 20, the elastic member 4 can apply a force toward the mounting surface 210 to the external lens 1 so that the image side surface 111 of the image side end 11 is fitted with the electronic device 20, such as the outer end surface of the camera module 240, so that the external lens module 10 is more firmly connected to the electronic device 20, and can also make the optical communication transmitting end 6a and the optical communication receiving end 6b more stable after alignment, thereby ensuring the shooting quality.

[0114] Furthermore, the ring body 31 of the rotating ring 3 is arranged around the image side end 11 and is rotatably connected to the mounting bracket 2. The second guide portion 32 of the rotating ring 3 is arranged at one end of the ring body 31 facing the external lens 1, and the second anti-rotation portion 33 of the rotating ring 3 is arranged on the ring body 31. When the rotating ring 3 rotates in the screw-out direction, the second guide portion 32 can push the first guide portion 12 to move the first guide portion 12 along the optical axis in the direction away from the rotating ring 3, thereby driving the positioning post 13 to disengage from the positioning hole 220. After the positioning post 13 disengages from the positioning hole 220, the second anti-rotation portion 33 can abut against the first anti-rotation portion 23 to limit the rotation of the mounting bracket 2 relative to the rotating ring 3. That is, when it is necessary to unscrew the external lens module 10 from the electronic device 20, The rotating ring 3 can be rotated, and the second guide portion 32 on the rotating ring 3 can push the first guide portion 12 to move along the optical axis away from the rotating ring 3, allowing the external lens 1 to overcome the elastic force of the elastic member 4 and move along the optical axis away from the rotating ring 3. This can drive the positioning post 13 to disengage from the positioning hole 220, releasing the restriction of the positioning hole 220 on the external lens 1. Then, the rotating ring 3 is further rotated, and the second rotation stop portion 33 can abut against the first rotation stop portion 23 to limit the rotation of the mounting bracket 2 relative to the rotating ring 3. The rotating ring 3 can then drive the mounting bracket 2 to rotate in the unscrewing direction, thereby separating the second connecting portion 22 of the mounting bracket 2 from the first connecting portion 230, thereby unscrewing the external lens module 10 from the electronic device 20. In other words, when it is necessary to unscrew the external lens module 10 from the electronic device 20, it is only necessary to rotate the rotating ring 3 in the unscrewing direction. This is a convenient and quick operation, greatly improving the user experience.

[0115] It can be understood that, when the positioning column 13 is out of the positioning hole 220, the second stop portion 33 can abut against the first stop portion 23. It can be that after the positioning column 13 is out of the positioning hole 220, the second stop portion 33 can abut against the first stop portion 23. At this time, continuing to rotate the rotating ring 3 can drive the installation bracket 2 to rotate; it can also be that after the positioning column 13 is out of the positioning hole 220, the rotating ring 3 needs to continue to rotate a certain angle before the second stop portion 33 can abut against the first stop portion 23, so that the installation bracket 2 can be driven to rotate together when the rotating ring 3 continues to rotate.

[0116] The above-mentioned first guide portion 12 and second guide portion 32 can have multiple implementation methods. In one possible implementation method, the first guide portion 12 may include a guide groove arranged circumferentially on the outer peripheral wall of the external lens 1 and extending along the screw-out direction toward the image side end 11 of the external lens 1. The second guide portion may include a ball. The ball can be arranged on the inner wall of the hole of the rotating ring 3 and embedded in the guide groove. When the rotating ring 3 rotates along the screw-out direction, the ball can rotate in the guide groove along the circumferential direction with the rotating ring 3, so that the ball can push the groove wall of the guide groove to move along the optical axis in the direction away from the rotating ring 3, thereby causing the positioning column 13 to disengage from the positioning hole 220.

[0117] Alternatively, in another implementation of the first guide portion 12 and the second guide portion 32, as Figure 7-10 As shown, one of the first guide portion 12 and the second guide portion 32 includes a guide surface 1211, and the other includes a protrusion 321. When the rotating ring 3 rotates in the screw-out direction, the protrusion 321 can apply a circumferential extrusion force to the guide surface 1211. The guide surface 1211 is configured to convert a portion of the circumferential extrusion force into a driving force along the optical axis, so that the external lens 1 moves along the optical axis in a direction away from the rotating ring 3, thereby causing the positioning column 13 to disengage from the positioning hole 220.

[0118] Therefore, through the cooperation between the protrusion 321 and the guide surface 1211, the circumferential extrusion force generated by the rotating ring 3 can be converted into a driving force along the optical axis direction, so that when the rotating ring 3 is rotated in the screw-out direction, the external lens module 10 can be unscrewed from the electronic device 20 more smoothly, and the structures of the first guide part 12 and the second guide part 32 can be simple and easy to implement.

[0119] The guiding surface 1211 may be any one of an inclined plane and an inclined arc surface, and is not limited here, as long as it can convert a part of the extrusion force along the circumferential direction into a driving force along the optical axis direction.

[0120] Alternatively, as Figure 7-10As shown, the image side end 11 includes an image side surface 111 and a step surface 112 arranged around the image side surface 111. When the external lens module 10 is connected to the electronic device 20, the image side surface 111 is used to abut against the mounting surface 210. The image side surface 111 protrudes from the step surface 112. The positioning column 13 is arranged at the edge of the image side surface 111, and the first guide portion 12 is arranged on the step surface 112.

[0121] In this way, the image side surface 111 can be accommodated in the hole of the rotating ring 3, so that the rotating ring 3 can also play a certain shading effect on the light emitted from the image side surface 111, and can effectively reduce the probability of dust falling on the image side surface 111, thereby effectively reducing the loss of light entering the camera module 240 from the external lens 1, which is conducive to improving the shooting quality.

[0122] In addition, the step surface 112 can also be accommodated in the hole of the rotating ring 3 to shield the first guide portion 12 and the second guide portion 32, which can provide a certain degree of protection for the first guide portion 12 and the second guide portion 32, and can make the appearance of the external lens module 10 relatively flat, thereby improving the aesthetics.

[0123] It should be understood that the above-mentioned arrangement of the image side surface 111 protruding from the step surface 112 along the optical axis means that the image side surface 111 is arranged closer to the rotating ring 3 relative to the step surface 112 .

[0124] The step surface can be a plane, which can facilitate the arrangement of the first guide portion. Of course, the step surface can also be a curved surface, which is not limited here.

[0125] The above-mentioned guide surface 1211 can have multiple implementation methods. In one possible implementation method, a guide protrusion can be set on the step surface 112, and the guide protrusion extends in the circumferential direction. Along the screwing direction of the mounting bracket 2, the size of the guide protrusion gradually increases along the optical axis direction, so that the guide protrusion forms a guide surface 1211 on the side facing the image side surface 111. The structure is simple and easy to implement.

[0126] In another implementation of the guide surface 1211, as Figure 7 As shown, a groove 121 is provided on the step surface 112 , and the groove 121 extends in the circumferential direction. Along the screwing direction of the mounting bracket 2 , the groove depth of the groove 121 gradually increases so that the bottom of the groove 121 forms a guide surface 1211 , and the second guide portion 32 includes a protrusion 321 , which extends into the groove 121 .

[0127] Therefore, the groove 121 can play a certain guiding role in the rotation of the protrusion 321, so that the protrusion 321 is not easily offset in the process of pushing the guide surface 1211, so that the positioning column 13 can be smoothly removed from the positioning hole 220 during the rotation of the rotating ring 3.

[0128] Specifically, the depth of the groove 121 gradually increases along the screwing direction of the mounting bracket 2, so that the bottom of the groove 121 may include an inclined surface segment that gradually tilts from the image side surface 111 to the light incident surface along the screwing direction of the mounting bracket 2.

[0129] Alternatively, as Figure 7 and Figure 9 As shown, the bottom of the groove 121 also includes a plane section 1212. The depth of the groove 121 corresponding to the plane section 1212 remains unchanged. When the external lens module 10 is connected to the electronic device 20, along the optical axis direction, the plane section 1212 is opposite to the protrusion 321 and there is a gap.

[0130] Therefore, when the external lens module 10 is connected to the electronic device 20, a gap can be provided between the second guide portion 32 and the first guide portion 12 along the optical axis direction, so that no force is generated between the second guide portion 32 and the first guide portion 12 along the optical axis direction. As a result, the external lens module 10 can be connected to the electronic device 20 more stably, and the elastic member 4 can be in its original state when the external lens module 10 is not connected to the electronic device 20, thereby reducing the probability of elastic fatigue of the elastic member 4 and improving the service life of the elastic member 4.

[0131] The flat section 1212 may be located at the deepest bottom portion of the groove 121 and may be smoothly connected to the guide surface 1211 .

[0132] Optionally, the size of the movable gap is a1; the maximum depth of the protrusion 321 extending into the groove 121 is a2 (eg Figure 9 When the external lens module 10 is connected to the mounting surface 210, the length of the positioning column 13 embedded in the positioning hole 220 is a3 (as shown); Figure 2 As shown), a1≥a2>a3.

[0133] In this way, it is possible to effectively prevent the positioning column 13 from being unable to completely disengage from the positioning hole 220 due to the movable gap being smaller than the distance that the second guide portion 32 pushes the first guide portion 12 to move along the optical axis. At the same time, it is also possible to effectively prevent the positioning column 13 from being unable to completely disengage from the positioning hole 220 due to the distance that the second guide portion 32 pushes the first guide portion 12 to move along the optical axis being smaller than the length of the positioning column 13 embedded in the positioning hole 220. This further ensures that the positioning column 13 can be completely disengaged from the positioning hole 220 when the rotating ring 3 is rotated to unscrew the external lens module 10 from the electronic device 20, and a gap can be created between the disengaged positioning column 13 and the surface where the positioning hole 220 is set (i.e., the outer end surface of the camera module 240) along the optical axis direction, thereby preventing the positioning column 13 from scratching the camera module 240 during the process of unscrewing the external lens module 10.

[0134] In some embodiments, there are multiple first guide portions 12 , which are spaced apart along the circumferential direction; there are multiple second guide portions 32 , which are arranged in a one-to-one correspondence with the multiple first guide portions 12 .

[0135] Therefore, during the process of unscrewing the external lens module 10 from the electronic device 20, the external lens module 10 can be relatively stable and not prone to tilting, thereby avoiding interference between the external lens module 10 and the electronic device 20 due to tilting, and preventing scratches caused by interference between the external lens module 10 and the electronic device 20 during the unscrewing process.

[0136] The number of the first guide portions 12 can be two, three or more, which is not limited here. Correspondingly, the number of the second guide portions 32 can be two, three or more, which is not limited here.

[0137] For example, the number of the first guide parts 12 can be three, and the three first guide parts 12 can be evenly arranged along the circumference. Correspondingly, the number of the second guide parts 32 is also three, and the three second guide parts 32 can be evenly arranged along the circumference, so that the process of rotating the external lens module 10 out of the electronic device 20 can be smoother.

[0138] In some embodiments, as Figure 11 As shown, the first stop portion 23 includes a first stop block 231, and the second stop portion 33 includes a second stop block 331. After the positioning column 13 is out of the positioning hole 220, the second stop block 331 can abut against the first stop block 231; the first stop block 231 is detachably arranged on the bracket body 21, and / or the second stop block 331 is detachably arranged on the ring body 31.

[0139] In this way, the connection between the first stop block 231 and the bracket body 21, or the connection between the second stop block 331 and the ring body 31 can be easily disassembled, and when assembling the ring body 31 and the mounting bracket 2, the ring body 31 and the bracket body 21 can be assembled first, and then the first stop block 231 can be assembled to the bracket body 21 or the second stop block 331 can be assembled to the ring body 31, thereby avoiding interference when assembling the ring body 31 and the mounting bracket 2.

[0140] The first stop block 231 can be connected to the bracket body 21 via screw threads, or can be bonded to the bracket body 21, or can be clamped to the bracket body 21, which is not limited here.

[0141] The implementation method of the detachable connection between the second stop block 331 and the ring body 31 may be substantially the same as the detachable connection between the first stop block 231 and the bracket body 21 , and will not be described in detail here.

[0142] In addition, when the first stop block 231 is detachably provided on the bracket body 21 and the second stop block 331 is fixedly provided on the ring body 31, the second stop block 331 can be integrally formed with the ring body 31 so that the connection between the second stop block 331 and the ring body 31 is more firm.

[0143] When the first stop block 231 is fixedly disposed on the bracket body 21 and the second stop block 331 is detachably disposed on the ring body 31, the first stop block 231 can be integrally formed with the bracket body 21 to make the connection between the first stop block 231 and the bracket body 21 more secure.

[0144] Optionally, the ring body 31 is arranged around the bracket body 21, and the ring body 31 and the bracket body 21 are circumferentially slidingly connected, the first stop block 231 is arranged on the inner wall of the hole of the ring body 31, and along the optical axis direction, the first stop block 231 and the bracket body 21 are arranged opposite to each other, and the second stop block 331 is arranged at one end of the bracket body 21 facing the first stop block 231.

[0145] As a result, the space occupied by the first stop block 231 and the bracket body 21 in the direction perpendicular to the optical axis can be smaller, and the space occupied by the second stop block 331 and the ring body 31 in the direction perpendicular to the optical axis can be smaller, which can make the rotating ring 3 and the mounting bracket 2 occupy less space in the direction perpendicular to the optical axis.

[0146] Among them, the second stop block 331 can be set in the area of the inner wall of the hole of the ring body 31 facing the light input end of the external lens 1, and the first stop block 231 can be set at one end of the bracket body 21 facing the light input end of the external lens 1. Therefore, there is no need to consider the problem of interference between the first stop block 231 and the outer end surface of the camera module 240 when the external lens module 10 is connected to the electronic device 20, which reduces the difficulty of setting the mounting bracket 2 and the rotating ring 3.

[0147] There are many ways to implement the circumferential sliding connection between the above-mentioned ring body 31 and the bracket body 21. In one possible implementation, a third slide groove may be provided on the inner wall of the hole of the ring body 31, and a fourth slide groove may be provided on the outer wall of the bracket body 21. A ball may be connected between the ring body 31 and the bracket body 21, and part of the ball may be slidably embedded in the third slide groove, and the other part of the ball may be embedded in the fourth slide groove. In this way, the sliding between the ring body 31 and the bracket body 21 can be smoother.

[0148] In another embodiment, the ring body 31 and the bracket body 21 are connected in a circumferential sliding manner, as shown in FIG. Figure 12-14 As shown, a first slider 311 or a first slide groove 211 is provided on the inner wall of the hole of the ring body 31, and a first slider 311 or the other of the first slide groove 211 is provided on the outer peripheral wall of the bracket body 21. The first slide groove 211 extends along the circumferential direction, and the first slider 311 can be slidably embedded in the first slide groove 211.

[0149] Thus, the ring body 31 and the bracket body 21 can be slidably connected while having a relatively simple structure and being easy to implement.

[0150] The bracket body 21 may be provided with an escape groove on one end of the bracket body 21 provided with the first stop block 231. The escape groove communicates with the first slide groove 211. When the ring body 31 and the bracket body 21 are assembled, the first slider 311 can be inserted into the first slide groove 211 through the escape groove, thereby facilitating assembly of the ring body 31 and the bracket body 21. Furthermore, the first stop block 231 may be provided close to the escape groove, and when the first stop block 231 abuts the second stop block 331, the first slider 311 and the escape groove are staggered along the optical axis to prevent the first slider 311 from falling out of the first slide groove 211.

[0151] When a connecting hole 25 is provided on the first sliding connection part 24, a connecting column 16 is provided on the second sliding connection part 14, and the first stop block 231 and the avoidance groove can be provided on the first sliding connection part 24, the first stop block 231 and the connecting hole 25 are spaced apart along the circumferential direction. During the process of screwing the external lens module 10 into or out of the electronic device 20, the second stop block 331 can rotate between the first stop block 231 and the connecting hole 25, that is, the second stop block 331 can rotate between the first stop block 231 and the connecting column 16. At this time, the first slider 311 can slide in the area of the first sliding groove 211 between the first stop block 231 and the connecting hole 25. The avoidance groove is provided close to the first stop block 231 and is staggered with the first slider 311 along the optical axis direction to prevent the first slider 311 from falling out of the first sliding groove 211 when the rotating ring 3 is rotated to screw the external lens module 10 into or out of the electronic device 20.

[0152] In other embodiments, Figure 15 and Figure 16 As shown, a reset member 5 is provided between the bracket body 21 and the ring body 31 , and the reset member 5 is used to provide a reset force for the ring body 31 .

[0153] Thus, the rotated ring body 31 can be restored to its position before rotation by the restoration member 5 , so that the ring body 31 can continue to rotate, so as to screw the external lens module 10 into or out of the electronic device 20 .

[0154] Among them, the reset member 5 can have multiple implementation methods. In one possible implementation method, the reset member 5 may include two magnetic members arranged opposite to each other along the circumferential direction, and the two magnetic poles on one side opposite to each other are opposite poles, so that magnetic attraction can be generated between the two magnetic members.

[0155] In another implementation of the reset element 5 , the reset element 5 includes a reset spring. The reset spring extends in the circumferential direction. One end of the reset spring is connected to the bracket body 21 , and the other end is connected to the ring body 31 .

[0156] Therefore, the cost of the reset member 5 can be lowered, thereby reducing the cost of the external lens module 10 .

[0157] The return spring may be a tension spring or a common spring, which is not limited here.

[0158] In addition, there can be multiple return springs, for example, there can be three return springs, which are evenly arranged along the circumference so that the ring body 31 can rotate more smoothly, that is, the rotating ring 3 can rotate more smoothly.

[0159] This embodiment further provides an electronic device, comprising an external lens module 10 according to any of the above embodiments. The electronic device 20 has a mounting surface 210, on which a camera module 240 is disposed. The outer end surface of the camera module 240 is provided with a positioning hole 220, a first connecting portion 230, and an optical communication receiving end 6b. A positioning post 13 and an optical communication transmitting end 6a are provided on the image-side surface of the external lens 1 in the external lens module 10. The second connecting portion 22 is rotatably connected to the first connecting portion 230 to circumferentially rotate the mounting bracket 2 of the external lens module 10 into or out of the electronic device 20. The positioning post 13 extends along the optical axis. When the external lens module 10 is connected to the electronic device 20, the positioning post 13 is at least partially embedded in the positioning hole 220. The optical communication transmitting end 6a and the optical communication receiving end 6b are opposite each other along the optical axis.

[0160] In this embodiment, the external lens module 10 is the external lens module 10 of any one of the above embodiments. Thus, the external lens module 10 can produce the same or similar beneficial effects as mentioned above. For details, please refer to the description of the above embodiments, which will not be repeated here.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external lens module, characterized in that: Used to connect to an electronic device, the electronic device has a mounting surface and a first connecting portion, and the external lens module includes: an external lens having an image side surface; a mounting bracket, the mounting bracket comprising a bracket body and a second connecting portion disposed on the bracket body, the second connecting portion being configured to connect to the first connecting portion to connect the external lens module to the electronic device, the mounting bracket and the external lens being movably connected with each other with a movable gap along the optical axis and being relatively fixed along the circumference of the external lens; A plurality of floating connectors are arranged at intervals between the external lens and the bracket body along the circumferential direction, and each of the floating connectors is used to provide a force toward the mounting surface to the external lens, so that when a gap appears between the image side surface of the external lens and the mounting surface, the floating connector can push the external lens toward the mounting surface to make the image side surface fit the mounting surface.

2. The external lens module according to claim 1, wherein: The floating connection member includes an elastic member, which extends along the optical axis direction, is connected between the external lens and the bracket body, and is in a compressed state.

3. The external lens module according to claim 2, wherein: The maximum elastic force of the elastic member is a, the weight of the external lens is b, and 2≤a / b≤3.

4. The external lens module according to claim 2, wherein: The bracket body is provided with a first sliding connection portion, and the external lens is provided with a second sliding connection portion. The first connection portion and the second sliding connection portion are slidably connected along the optical axis and relatively fixed along the circumferential direction. A limit member is provided between the first sliding connection portion and the second sliding connection portion, and the limit member is used to limit the first sliding connection portion and the second sliding connection portion from sliding off along the optical axis. The first sliding connection portion is provided with a connection hole, and the second sliding connection portion is provided with a connection column. The connection hole and the connection column are slidably matched along the optical axis direction. One end of the connection column extends out of the connection hole. The limiter is provided at the extended end of the connection column. Along the radial direction of the connection hole, the maximum size of the limiter is larger than the aperture of the connection hole. Along the optical axis direction, the movable gap is formed between the limiter and the first sliding connection portion. The elastic member is sleeved on the connecting column, and one end of the elastic member abuts against the limiting member, and the other end of the elastic member abuts against the first sliding connection part, or a flange is provided on the inner wall of the connecting hole, and the other end of the elastic member abuts against the flange.

5. The external lens module according to claim 4, wherein: A threaded hole is provided at the protruding end of the connecting column, and the limiting member includes a screw, which is screwed into the threaded hole, and the outer diameter of the screw head of the screw is larger than the hole diameter of the connecting hole.

6. The external lens module according to any one of claims 1 to 5, characterized in that: A plurality of floating connectors are evenly arranged along the circumferential direction between the external lens and the bracket body.

7. The external lens module according to any one of claims 1 to 5, characterized in that: The second connecting portion is used to be rotatably connected to the first connecting portion to screw the bracket body into or out of the electronic device along the circumferential direction, the first connecting portion includes a connecting protrusion, the bracket body is an annular structure, and the bracket body is arranged around the connecting protrusion; An external thread is provided on the outer peripheral wall of the connecting protrusion, and the second connecting portion includes an internal thread provided on the inner wall of the hole of the bracket body, the internal thread matches the external thread, and the external lens module and the electronic device are screwed together by the internal thread and the external thread; or, a slider and a slide groove are provided on the outer peripheral wall of the connecting protrusion, and the second connecting portion includes a slider provided on the inner wall of the hole of the bracket body and the other of the slide groove, the slide groove extends along the circumferential direction, and the external lens module and the electronic device are slidably embedded in the slide groove and rotatably connected through the slider.

8. The external lens module according to claim 7, wherein: The external lens module further includes a rotating ring, which is disposed around the bracket body. The rotating ring is used to rotate to drive the bracket body to rotate, so that the second connecting portion and the first connecting portion rotate relative to each other.

9. The external lens module according to any one of claims 1 to 5, characterized in that: An optical communication receiving end and a positioning hole are also provided on the mounting surface, and an optical communication transmitting end and a positioning column are provided on the image side surface of the external lens. The positioning column extends along the optical axis direction of the external lens. When the external lens module is connected to the electronic device, the positioning column is at least partially embedded in the positioning hole, and the optical communication transmitting end and the optical communication receiving end are opposite to each other along the optical axis.

10. An electronic device, characterized in that: The electronic device has a mounting surface, a camera module is arranged on the mounting surface, and an outer end surface of the camera module is provided with a positioning hole, a first connecting portion and an optical communication receiving end; It also includes the external lens module described in any one of claims 1 to 9, wherein a positioning post and an optical communication transmitting end are provided on the image side surface of the external lens in the external lens module, the second connecting portion is rotatably connected to the first connecting portion to screw the mounting bracket of the external lens module into or out of the electronic device along the circumferential direction, the positioning post extends along the optical axis direction of the external lens, and when the external lens module is connected to the electronic device, the positioning post is at least partially embedded in the positioning hole, and the optical communication transmitting end is opposite to the optical communication receiving end along the optical axis.

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