Lens waterproof structure

Abstract

The utility model relates to the technical field of mobile electronic equipment, in particular to a lens waterproof structure which comprises a mounting panel, an inner ring, a first sealing ring, a second sealing ring and an outer ring. The installation panel is provided with an installation hole and is provided with a back end face, the inner ring comprises a hollow containing cavity, a limiting part and a sealing part, the minimum outer diameter of the limiting part is larger than the inner diameter of the installation hole, the limiting part is provided with a limiting face facing the installation panel, and the limiting face abuts against the back end face; the sealing part is contained in the mounting hole, and a first sealing groove and a second sealing groove are formed in the peripheral face of the sealing part at intervals. The first sealing ring is installed in the first sealing groove, and the first sealing ring abuts against and tightly presses the inner wall of the installation hole and the inner wall of the first sealing groove. The second sealing ring is installed in the second sealing groove, and the second sealing ring abuts against and tightly presses the inner wall of the installation hole and the inner wall of the second sealing groove. The outer ring is coaxial with the inner ring and sleeves the outer peripheral surface of the inner ring, and the bottom end of the outer ring abuts against the back end face.

Description

Technical Field

[0001] The present application relates to the technical field of mobile electronic devices, and in particular to a lens waterproof structure. Background Art

[0002] When electronic devices are used in a humid environment for a long time, it is more likely to have water ingress into the lens. Water ingress into the phone lens can cause blurred images, color shift, or even make it unusable. In order to improve the waterproof performance of electronic devices, the lens waterproof structure of the related technology usually installs a sealing strip between the inner ring and the outer ring, the outer ring overlaps the mounting panel, and the lens module is installed in the cavity of the lens waterproof structure. However, since the limiting distance between the outer ring and the mounting panel is too short, and the limiting distance is less than the maximum deformable amount of the sealing ring, the sealing ring is easily deformed due to friction during the assembly process, and partially disengaged from the limiting groove, resulting in sealing problems. Utility Model Content

[0003] In view of this, the present application provides a lens waterproof structure, which can improve the sealing performance of the lens.

[0004] The embodiment of the present application provides a lens waterproof structure, comprising a mounting panel, an inner ring, a first sealing ring, a second sealing ring and an outer ring. The mounting panel is provided with a mounting hole and has a back end surface, the inner ring comprises a hollow cavity for mounting a lens, a limiting portion and a sealing portion surrounding the cavity and arranged along the central axis direction, the cavity is coaxially arranged with the mounting hole, the direction of the limiting portion toward the sealing portion is a first direction, the minimum outer diameter of the limiting portion is greater than the inner diameter of the mounting hole, and has a limiting surface facing the mounting panel, the back end surface is located on the side of the mounting panel in the opposite direction of the first direction, and the limiting surface abuts the back end surface; the sealing portion is accommodated in the mounting hole, and the outer peripheral surface of the sealing portion is provided with a first sealing groove and a second sealing groove at intervals. The first sealing ring is installed in the first sealing groove, and the first sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the first sealing groove respectively. The second sealing ring is installed in the second sealing groove, and the second sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the second sealing groove respectively. The outer ring is coaxial with the inner ring and sleeved on the outer peripheral surface of the inner ring, and the bottom end of the outer ring abuts against the back end surface.

[0005] In this lens waterproof structure, the first sealing ring is installed in the first sealing groove, and the second sealing ring is installed in the second sealing groove. The first sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the first sealing groove respectively, and the second sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the second sealing groove respectively. The outer ring is sleeved on the outer circumferential surface of the inner ring, and the bottom end of the outer ring abuts against the back end surface of the mounting panel. The first sealing ring and the second sealing ring form a "series" sealing form in the sealing part, that is, the mounting panel and the inner ring are sealed simultaneously by the first sealing ring and the second sealing ring, and the first sealing ring and the second sealing ring are doubly isolated and jointly waterproof, thereby further improving the waterproof performance of the lens.

[0006] In at least one embodiment, along the axial direction of the inner ring, the single-side width of the limiting surface is L, and 0.6mm≤L≤0.8mm.

[0007] In this lens waterproof structure, along the axial direction of the inner ring, the single-side width of the limiting surface is L, and L is greater than or equal to 0.6 mm, so that the limiting surface has sufficient length to limit the first sealing ring, and L is less than or equal to 0.8 mm. On the premise that the limiting surface has sufficient limiting length, the space occupied by the limiting part in the lens waterproof structure is reduced, thereby reducing the overall volume of the lens waterproof structure.

[0008] In at least one embodiment, along the axial direction of the inner ring, the depths of the first sealing groove and the second sealing groove are the same, and the structures of the first sealing ring and the second sealing ring are the same.

[0009] In this lens waterproof structure, the depths of the first sealing groove and the second sealing groove are the same. Therefore, the first sealing ring and the second sealing ring can be configured as the same structure, and the first sealing ring and the second sealing ring can select the same model, which reduces the selection time and improves the assembly efficiency of the first sealing ring and the second sealing ring.

[0010] In at least one embodiment, a limiting ring groove is provided on the side wall of the limiting portion along the first direction, and a fixed ring platform is provided on the side wall of the outer ring facing the inner ring. The fixed ring platform extends into the limiting ring groove and abuts against the groove side wall of the limiting ring groove in the opposite direction of the first direction.

[0011] In this lens waterproof structure, the fixed ring platform of the outer ring extends into the limiting ring groove of the limiting part, and the fixed ring platform abuts against the groove side wall of the limiting ring groove in the opposite direction of the first direction, so that the inner ring can limit the outer ring through the limiting ring groove, thereby facilitating the fixing of the relative positions of the inner ring and the outer ring during the assembly process, so as to facilitate the welding or bonding of the inner ring and the outer ring.

[0012] In at least one embodiment, along the first direction, the depth of the limiting ring groove is greater than the thickness of the fixed ring platform.

[0013] In this lens waterproof structure, the depth of the limiting ring groove along the first direction is greater than the thickness of the fixed ring platform, so as to avoid air between the mounting panel and the inner ring, so as to improve the problem of welding slag at the welding point between the inner ring and the outer ring damaging the back end surface of the mounting panel.

[0014] In at least one embodiment, the lens waterproof structure also includes a support plate, which is used to be fixed to a circuit board of an electronic device, and the support plate includes a first section and a second section, the first section is connected to the mounting panel, and the second section is connected to the inner ring.

[0015] In this lens waterproof structure, the support plate includes a first section and a second section, the first section is connected to the mounting panel, and the second section is connected to the inner ring to fix the positional relationship between the inner ring and the mounting panel, thereby improving the structural stability of the lens waterproof structure.

[0016] In at least one embodiment, the lens waterproof structure further includes an adhesive member, which is disposed between the first section and the support plate and bonds the support plate and the inner ring.

[0017] The lens waterproof structure is arranged between the first section and the support plate by using an adhesive, so that during the assembly process, the support plate and the inner ring can be temporarily fixed and connected to facilitate welding of the inner ring and the second section.

[0018] In at least one embodiment, the lens waterproof structure also includes a lens cover, and a cover groove is provided on the side of the inner ring in the opposite direction of the first direction. The lens cover is arranged in the cover groove and connected to the inner ring, and the lens cover seals and covers the cavity.

[0019] In this lens waterproof structure, the lens cover is fixed in the cover groove and seals and covers the cover groove, so that the cavity of the lens waterproof structure is sealed by the lens cover, thereby achieving a sealing effect.

[0020] In at least one embodiment, the inner wall of the first sealing groove is connected to the limiting surface.

[0021] In this lens waterproof structure, after the first sealing ring is installed in the first sealing groove, the first sealing ring respectively abuts and presses the inner wall of the mounting hole and the inner wall of the first sealing groove. Compared with the related art in which the sealing ring relies on the groove side wall of the sealing groove for limiting, in the technical solution of the present application, the first sealing ring realizes the limiting effect through the limiting part of the inner ring. Since the sealing part is accommodated in the mounting panel and the limiting surface abuts the back end surface of the mounting panel, the contour length of the limiting part is greater than the contour length of the sealing part, thereby increasing the limiting length of the first sealing ring. The deformation of the sealing ring due to friction during the assembly process can be blocked by the limiting surface, thereby improving the sealing problem caused by the first sealing ring partially escaping from the first sealing groove, and improving the waterproof performance of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the lens waterproof structure in one embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the exploded structure of the lens waterproof structure in one embodiment of the present application.

[0024] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at "Ⅲ-Ⅲ".

[0025] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of part A.

[0026] Figure 5 It is a schematic diagram of the cross-sectional structure of one side of the inner ring in an embodiment of the present application.

[0027] Main component symbols

[0028] 001 Lens waterproof structure 100 Chamber

[0029] 200 Support plate

[0030] 210 First paragraph

[0031] 220 Second paragraph

[0032] 300 Mounting Panel

[0033] 310 Back side

[0034] 320 Mounting holes

[0035] 400 Inner Ring

[0036] 410 Limiting part

[0037] 411 Limiting surface

[0038] 412 Limiting ring groove

[0039] 420 Sealing part

[0040] 421 First sealing groove

[0041] 4211 First sealing bottom wall 4212 First sealing side wall 422 Second sealing groove

[0042] 430 Cover slot

[0043] 500 First seal ring

[0044] 600 Second sealing ring

[0045] 700 Outer Ring

[0046] 710 Fixed ring table

[0047] 800 Adhesive Parts

[0048] 900 Lens Cover The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described below in conjunction with 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 of the embodiments.

[0050] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centrally arranged element at the same time. When an element is considered to be "set" to another element, it may be directly set on the other element or there may be a centrally arranged element at the same time. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0051] In the related art, the limiting distance between the outer ring and the mounting panel is too short. During the assembly process, the sealing ring is easily deformed due to friction and partially disengaged from the limiting groove, resulting in sealing problems.

[0052] An embodiment of the present application provides a lens waterproof structure, in which a first sealing ring and a second sealing ring are sleeved on the outer circumferential surface of an inner ring, an outer ring is sleeved on the outer circumferential surface of the inner ring, and the bottom end of the outer ring abuts against the back end surface of the mounting panel. The first sealing ring and the second sealing ring form a "series" sealing form in the sealing part, and the first sealing ring and the second sealing ring are doubly isolated and jointly waterproof, thereby further improving the waterproof performance of the lens.

[0053] Specifically, an embodiment of the present application provides a lens waterproof structure, comprising a mounting panel, an inner ring, a first sealing ring, a second sealing ring and an outer ring. The mounting panel is provided with a mounting hole and has a back end surface, the inner ring comprises a hollow cavity for mounting a lens, a limiting portion and a sealing portion surrounding the cavity and arranged along the central axis direction, the cavity is coaxially arranged with the mounting hole, the direction of the limiting portion toward the sealing portion is a first direction, the minimum outer diameter of the limiting portion is greater than the inner diameter of the mounting hole, and the limiting portion has a limiting surface facing the mounting panel, the back end surface is located on the side of the mounting panel in the opposite direction of the first direction, and the limiting surface abuts the back end surface; the sealing portion is accommodated in the mounting hole, and the outer peripheral surface of the sealing portion is provided with a first sealing groove and a second sealing groove at intervals. The first sealing ring is installed in the first sealing groove, and the first sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the first sealing groove respectively. The second sealing ring is installed in the second sealing groove, and the second sealing ring abuts and presses the inner wall of the mounting hole and the inner wall of the second sealing groove respectively. The outer ring is coaxial with the inner ring and sleeved on the outer circumference of the inner ring, and the bottom end of the outer ring abuts against the back end surface. The first sealing ring and the second sealing ring form a "series" sealing form in the sealing part, that is, the mounting panel and the inner ring are sealed by the first sealing ring and the second sealing ring at the same time, and the first sealing ring and the second sealing ring are doubly isolated and jointly waterproof, thereby further improving the waterproof performance of the lens.

[0054] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the features in the following embodiments and examples can be combined with each other.

[0055] Figure 1 The overall structural diagram of the lens waterproof structure 001 in one embodiment of the present application is shown. Figure 2 A schematic diagram of the exploded structure of the lens waterproof structure 001 in one embodiment of the present application is shown.

[0056] See also Figure 1 and Figure 2One embodiment of the present application provides a lens waterproof structure 001, comprising a support plate 200, a mounting panel 300, an inner ring 400 and a first sealing ring 500. The support plate 200 is used to be fixed to a circuit board (not shown) of an electronic device, and the mounting panel 300 is mounted on the upper surface of the support plate 200. The mounting panel 300 has a mounting hole 320 and a back end surface 310 facing away from the support plate 200.

[0057] Figure 3 Shows Figure 1 Schematic diagram of the cross-sectional structure at "Ⅲ-Ⅲ".

[0058] See also Figure 2 and Figure 3 In some embodiments, the mounting panel 300 is generally arranged in a circular ring shape, and the upper surface of the mounting panel 300 is the back end surface 310 .

[0059] In some embodiments, the lens waterproof structure 001 also includes a lens cover 900, and a cover groove 430 is provided on the side of the inner ring 400 away from the support plate 200. The lens cover 900 is arranged in the cover groove 430 and seals the upper opening of the cover groove 430, so that the cavity 100 of the lens waterproof structure 001 is sealed by the lens cover 900, thereby achieving a waterproof sealing effect.

[0060] In some embodiments, the lens cover 900 is transparent so that the lens module installed in the cavity 100 can receive light passing through the lens cover 900 to achieve a camera function.

[0061] Figure 4 Shows Figure 3 Schematic diagram of the enlarged structure of part A. Figure 5 A schematic diagram of the cross-sectional structure of a single side of the inner ring 400 in an embodiment of the present application is shown.

[0062] See also Figure 4 and Figure 5 In some embodiments, the inner ring 400 has a hollow cavity 100 for mounting a lens, and the inner ring 400 includes a limiting portion 410 and a sealing portion 420, which surround the cavity 100 and are arranged along its central axis, the cavity 100 is coaxially arranged with the mounting hole 320, and the minimum outer diameter of the limiting portion 410 is greater than the inner diameter of the mounting hole 320. The limiting portion 410 and the sealing portion 420 are divided by the plane where the back end surface 310 is located, and the limiting portion 410 has a limiting surface 411 facing the support plate 200, and the limiting surface 411 abuts against the back end surface 310.

[0063] The direction from the limiting portion 410 to the sealing portion 420 is the first direction, that is, the direction from the support plate 200 to the inner ring 400. The opposite direction to the first direction is the direction from the support plate 200 to the inner ring 400.

[0064] The sealing part 420 is received in the mounting hole 320 of the mounting panel 300, and a first sealing groove 421 is provided on the outer peripheral surface of the sealing part 420. The first sealing ring 500 is installed in the first sealing groove 421, and the first sealing ring 500 abuts against and presses the inner wall of the mounting hole 320 and the first sealing groove 421 respectively to fill the gap between the sealing part 420 and the inner wall of the mounting hole 320, thereby achieving an airtight and waterproof effect.

[0065] The inner wall of the first sealing groove 421 away from the support plate 200 is connected to the limiting surface 411, that is, the first sealing groove 421 has only the first sealing bottom wall 4211 along the axial direction of the sealing portion 420 and the first sealing side wall 4212 close to the support plate 200 on the sealing portion 420, and the side wall surface of the first sealing groove 421 on the sealing portion 420 away from the support plate 200 does not exist (the first sealing groove 421 is opened on the side away from the support plate 200). In some embodiments, the limiting portion 410 and the sealing portion 420 are integrally formed, so the side wall surface of the first sealing groove 421 on the sealing portion 420 away from the support plate 200 is the limiting surface 411 of the limiting portion 410. Since the sealing portion 420 is accommodated in the mounting panel 300 and the limiting surface 411 abuts against the back end surface 310 of the mounting panel 300, the contour length of the limiting portion 410 is greater than the contour length of the sealing portion 420, that is, the maximum diameter of the limiting portion 410 is greater than the maximum diameter of the sealing portion 420, thereby increasing the limiting length of the first sealing ring 500 through the limiting surface 411, and the deformation of the first sealing ring 500 due to friction during the assembly process can be blocked by the limiting surface 411, thereby improving the sealing problem caused by the first sealing ring 500 being detached from the first sealing groove 421, thereby improving the waterproof performance of the lens.

[0066] In some embodiments, the limiting portion 410 and the sealing portion 420 are separately provided, and the limiting portion 410 and the sealing portion 420 are processed separately and then fixedly connected by fasteners or adhesive.

[0067] In some embodiments, along the axial direction of the inner ring 400, the single-side width of the limiting surface 411 is L, 0.6mm≤L≤0.8mm, L is greater than or equal to 0.6mm, so that the limiting surface 411 has sufficient length to limit the first sealing ring 500, and L is less than or equal to 0.8mm, so that on the premise that the limiting surface 411 has sufficient limiting length, the space occupied by the limiting portion 410 in the lens waterproof structure 001 is reduced, thereby reducing the overall volume of the lens waterproof structure 001.

[0068] In some embodiments, the value of L is any of 0.60, 0.61, 0.62, 0.63, 0.64, 0.65, 0.66, 0.67, 0.68, 0.69, 0.70, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79, 0.80.

[0069] In some embodiments, a second sealing groove 422 is further disposed on the outer circumference of the sealing portion 420 . The second sealing groove 422 is spaced apart from the first sealing groove 421 . The second sealing groove 422 is disposed on a side of the first sealing groove 421 facing the support plate 200 .

[0070] In some embodiments, the lens waterproof structure 001 also includes a second sealing ring 600, which respectively abuts and presses against the inner walls of the mounting hole 320 and the second sealing groove 422, and the first sealing ring 500 and the second sealing ring 600 form a "series" sealing form in the sealing portion 420, that is, the mounting panel 300 and the inner ring 400 are sealed simultaneously by the first sealing ring 500 and the second sealing ring 600, and the first sealing ring 500 and the second sealing ring 600 are doubly isolated and jointly waterproof, thereby further improving the waterproof performance of the lens.

[0071] In some embodiments, the depth of the first sealing groove 421 and the second sealing groove 422 are the same, so that the structures of the first sealing ring 500 and the second sealing ring 600 are the same. The first sealing ring 500 and the second sealing ring 600 can select the same model to reduce the selection time. At the same time, the first sealing ring 500 and the second sealing ring 600 can be installed by the same set of sealing ring installation fixtures, thereby improving the assembly efficiency of the first sealing ring 500 and the second sealing ring 600.

[0072] In some embodiments, the material of the first sealing ring 500 and the second sealing ring 600 includes at least one of natural rubber, silicone rubber, nitrile rubber, chloroprene rubber, fluororubber, EPDM rubber, polyurethane rubber, epichlorohydrin rubber, and acrylic rubber, or a composite containing at least one of natural rubber, silicone rubber, nitrile rubber, chloroprene rubber, fluororubber, EPDM rubber, polyurethane rubber, epichlorohydrin rubber, and acrylic rubber.

[0073] See also Figure 4 In some embodiments, the lens waterproof structure 001 also includes an outer ring 700, which is coaxially arranged with the inner ring 400, and the outer ring 700 is sleeved on the outer circumferential surface of the inner ring 400, and the bottom end of the outer ring 700 abuts against the back end surface 320 of the mounting panel 300, so that the outer ring 700 can protect the inner ring 400, so as to improve the service life of the lens waterproof structure 001.

[0074] In some embodiments, a limiting ring groove 412 is provided on the side wall of the limiting portion 410 toward the support plate 200, and a fixing ring platform 710 is provided on the side wall of the outer ring 700 toward the inner ring 400. The fixing ring platform 710 extends into the limiting ring groove 412 and abuts against the groove side wall of the limiting ring groove 412 away from the support plate 200, so that the inner ring 400 can limit the outer ring 700 through the limiting ring groove 412, so that in the process of assembling the inner ring 400 and the outer ring 700, it is convenient to fix the relative position of the inner ring 400 and the outer ring 700, so as to facilitate welding or bonding of the inner ring 400 and the outer ring 700.

[0075] In some embodiments, the inner ring 400 and the outer ring 700 are fixed in relative position by welding, and the welding position of the inner ring 400 and the outer ring 700 is at the intersection of the fixed ring platform 710 and the axial side wall of the limiting ring groove 412 .

[0076] In some embodiments, the inner ring 400 and the outer ring 700 are fixed in relative position by bonding, and the bonding position of the inner ring 400 and the outer ring 700 is at the intersection of the fixed ring platform 710 and the axial side wall of the limiting ring groove 412 .

[0077] In some embodiments, along the axial direction of the inner ring 400 (i.e., the axial direction of the inner ring 400 or the outer ring 700), the depth of the limiting ring groove 412 is greater than the thickness of the fixed ring stage 710, so as to leave a gap between the fixed ring stage 710 and the back end surface 310 of the mounting panel 300, thereby avoiding air between the mounting panel 300 and the inner ring 400, thereby improving the problem of welding slag at the welding point between the inner ring 400 and the outer ring 700 damaging the back end surface 310 of the mounting panel 300.

[0078] In some embodiments, the support plate 200 includes a first section 210 and a second section 220. The lens waterproof structure 001 also includes an adhesive member 800, which is disposed between the first section 210 and the support plate 200 and bonds the support plate 200 and the inner ring 400, so that during the assembly process, the support plate 200 and the inner ring 400 can be temporarily fixedly connected to facilitate welding or bonding of the inner ring 400 and the second section 220.

[0079] In some embodiments, the second section 220 and the inner ring 400 are fixed in relative position by welding, the first section 210 is fixed to the mounting panel 300, and the second section 220 is fixed to the inner ring 400 to fix the positional relationship between the inner ring 400 and the mounting panel 300, thereby improving the structural stability of the lens waterproof structure 001.

[0080] When the lens waterproof structure 001 is used, the support plate 200 is fixed to the circuit board of the electronic device, and the lens module is installed in the cavity 100 of the lens waterproof structure 001. The lens cover plate 900 is arranged in the cover plate groove 430 of the inner ring 400 and seals and covers the cover plate groove 430, so that the cavity 100 of the lens waterproof structure 001 is sealed by the lens cover plate 900, thereby achieving a waterproof sealing effect. The sealing part 420 is accommodated in the mounting panel 300, and the limiting surface 411 abuts against the back end surface 310 of the mounting panel 300. The contour length of the limiting part 410 is greater than the contour length of the sealing part 420, that is, the maximum diameter of the limiting part 410 is greater than the maximum diameter of the sealing part 420, so that the limiting length of the first sealing ring 500 is increased by the limiting surface 411, and the deformation of the first sealing ring 500 due to friction during the assembly process can be blocked by the limiting surface 411. The second sealing ring 600 respectively abuts against and presses the inner walls of the mounting hole 320320 and the second sealing groove 422, and the first sealing ring 500 and the second sealing ring 600 form a "serial" sealing form in the sealing portion 420, that is, the mounting panel 300 and the inner ring 400 are sealed simultaneously by the first sealing ring 500 and the second sealing ring 600, and the first sealing ring 500 and the second sealing ring 600 are doubly isolated and jointly waterproof, thereby further improving the waterproof performance of the lens.

[0081] In addition, those skilled in the art may also make other changes within the technical concept of the present application. Of course, these changes made based on the technical concept of the present application should be included in the scope disclosed in the present application.

Claims

1. A lens waterproof structure, characterized in that: include: A mounting panel, the mounting panel being provided with a mounting hole and having a rear end surface; An inner ring, the inner ring comprising a hollow cavity for mounting a lens, a limiting portion and a sealing portion surrounding the cavity and arranged along the central axis direction thereof, the cavity being coaxially arranged with the mounting hole, the direction of the limiting portion toward the sealing portion being a first direction, the minimum outer diameter of the limiting portion being larger than the inner diameter of the mounting hole, and having a limiting surface facing the mounting panel, the back end surface being located on a side of the mounting panel in the opposite direction of the first direction, and the limiting surface abutting against the back end surface; the sealing portion being received in the mounting hole, and the outer peripheral surface of the sealing portion being provided with a first sealing groove and a second sealing groove at intervals; A first sealing ring is installed in the first sealing groove, and the first sealing ring abuts against and presses the inner wall of the installation hole and the inner wall of the first sealing groove respectively; A second sealing ring is installed in the second sealing groove, and the second sealing ring abuts against and presses against the inner wall of the installation hole and the inner wall of the second sealing groove respectively; The outer ring is coaxial with the inner ring and sleeved on the outer peripheral surface of the inner ring, and the bottom end of the outer ring abuts against the back end surface.

2. The waterproof lens structure according to claim 1, characterized in that: Along the axial direction of the inner ring, the single-side width of the limiting surface is L, 0.6mm≤L≤0.8mm.

3. The waterproof structure of the lens as claimed in claim 1, characterized in that: Along the axial direction of the inner ring, the first sealing groove and the second sealing groove have the same depth, and the first sealing ring and the second sealing ring have the same structure.

4. The waterproof structure for a lens as claimed in claim 1, characterized in that: The limiting portion is provided with a limiting ring groove on the side wall along the first direction, and the outer ring is provided with a fixed ring platform on the side wall facing the inner ring. The fixed ring platform extends into the limiting ring groove and abuts against the groove side wall of the limiting ring groove in the opposite direction of the first direction.

5. The waterproof structure for a lens as claimed in claim 4, characterized in that: Along the first direction, the depth of the limiting ring groove is greater than the thickness of the fixing ring platform.

6. The waterproof structure for a lens as claimed in claim 1, characterized in that: The lens waterproof structure also includes a support plate, which is used to be fixed to a circuit board of an electronic device. The support plate includes a first section and a second section, wherein the first section is connected to the mounting panel and the second section is connected to the inner ring.

7. The waterproof structure for a lens as claimed in claim 6, characterized in that: The lens waterproof structure also includes an adhesive member, which is arranged between the first section and the support plate and bonds the support plate and the inner ring.

8. The waterproof structure for a lens as claimed in claim 1, characterized in that: The lens waterproof structure also includes a lens cover plate. A cover plate groove is provided on the side of the inner ring in the opposite direction to the first direction. The lens cover plate is arranged in the cover plate groove and connected to the inner ring. The lens cover plate seals and covers the cavity.

9. The waterproof structure for a lens as claimed in claim 1, characterized in that: The inner wall of the first sealing groove is connected to the limiting surface.

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