Camera module and electronic equipment

Abstract

The utility model relates to a camera module and electronic equipment. The camera module comprises: a housing; the lens is arranged on the shell; the drainage component is arranged between the shell and the lens and comprises a water absorption section used for absorbing accumulated water on the exposed surface of the lens of the lens; one end of the water delivery section is connected with the water absorption section; the drainage section is connected with the other end of the water conveying section, the water conveying section conveys the accumulated water to the drainage section from the water absorption section, and the drainage section is used for draining the accumulated water out of the drainage component. The drainage component is made of a hydrophilic material, can absorb accumulated water on the exposed surface of the lens, and discharges the absorbed accumulated water through the drainage section, thereby improving the influence of the accumulated water on the camera module.

Description

TECHNICAL FIELD

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

[0002] Vehicle-mounted camera modules are set on vehicles to assist driving and are applied more and more widely. The camera module set on the outer side of a vehicle is affected by wind, rain or water splashing, etc., so that water droplets are attached to the surface of the lens, which causes the captured image of the camera module to be blurred or even completely unable to capture the image, affecting the assisted driving and driving safety of the vehicle.

[0003] A solution to the above problem is to set a flow guide structure on the outer side of the camera module shell to guide and discharge the water accumulated on the lens. However, setting the flow guide structure on the outer side of the shell greatly changes the appearance of the camera module, which is not conducive to the installation and use of the camera module. CONTENT OF THE UTILITY MODEL

[0004] Based on the above problem, the present application provides a camera module and electronic equipment, which sets a hydrophilic drainage component in the shell, without changing the appearance of the camera module.

[0005] In a first aspect, the present application provides a camera module, comprising:

[0006] a shell;

[0007] a lens set in the shell, the lens comprising a lens piece;

[0008] a drainage component set between the shell and the lens piece, the drainage component comprising:

[0009] a water absorption section for absorbing water accumulated on the exposed surface of the lens piece;

[0010] a water conveying section connected to one end of the water absorption section;

[0011] a water discharge section connected to the other end of the water conveying section, the water conveying section conveying the accumulated water from the water absorption section to the water discharge section, and the water discharge section being configured to discharge the accumulated water from the drainage component.

[0012] According to some embodiments of the present application, the lens further comprises:

[0013] a lens barrel, the lens piece being set in the lens barrel;

[0014] a compression ring set in the lens barrel, the compression ring being configured to compress the lens piece, and the water absorption section of the drainage component being located inside the compression ring.

[0015] According to some embodiments of the present application, a first through hole is arranged on the sidewall of the compression ring, and the drainage component passes through the first through hole.

[0016] According to some embodiments of the present application, a first inner flange is arranged on the end of the compression ring, and the bottom surface of the first inner flange is provided with at least one water guide groove capable of guiding the accumulated water to the water absorption section.

[0017] According to some embodiments of the present application, the distance between the inner wall of the first inner flange and the end surface of the water absorption section is ≤3mm.

[0018] According to some embodiments of the present application, the end of the water absorption section is flush with the end surface of the compression ring.

[0019] According to some embodiments of the present application, a second through hole is arranged on the shell, and the drainage component passes through the second through hole.

[0020] According to some embodiments of the present application, the area of the radial section of the water delivery section is greater than or equal to the area of the radial section of the water drainage section.

[0021] According to some embodiments of the present application, the water delivery section is in a stepped shape; or

[0022] At least one sidewall of the water delivery section is an arc surface.

[0023] According to some embodiments of the present application, the shell is provided with a receiving groove, and at least part of the water delivery section is located in the receiving groove.

[0024] According to some embodiments of the present application, the water drainage section comprises:

[0025] a water drainage section body connected to the water delivery section at one end;

[0026] a tapered portion arranged at the other end of the water drainage section body.

[0027] According to some embodiments of the present application, the water absorption section of the drainage component is located between the shell and the lens.

[0028] According to some embodiments of the present application, the water absorption section is located between the shell and the compression ring of the lens.

[0029] According to some embodiments of the present application, a second inner flange is arranged on the end of the shell, and the second inner flange abuts against the water absorption section.

[0030] According to some embodiments of the present application, the drainage component is a hydrophilic material.

[0031] According to some embodiments of the present application, the drainage component is an elastic material with micropores.

[0032] According to some embodiments of the present application, the water absorption of the unit mass of the drainage component is greater than or equal to 3 g / g.

[0033] According to some embodiments of the present application, the density of the drainage component is 0.02-0.5 g / cm 2 .

[0034] According to some embodiments of the present application, the material resilience of the drainage component is greater than or equal to 5%.

[0035] According to some embodiments of the present application, the ratio of the area of the radial cross section of the water absorption section to the area of the lens exposed surface of the lens is greater than or equal to 1:200.

[0036] The ratio of the area of the radial cross section of the water absorption section to the area of the lens exposed surface of the lens is greater than or equal to 1:200.

[0037] According to some embodiments of the present application, the lens exposed surface is provided with a hydrophilic layer.

[0038] According to some embodiments of the present application, the end surface of the water absorption section is an arc surface, or

[0039] The water absorption section is annular.

[0040] In a second aspect, the present application provides an electronic device, comprising:

[0041] An electronic device body;

[0042] The camera module as described above is arranged in the electronic device body.

[0043] According to some embodiments of the present application, the end surface of the water absorption section away from the water absorption section is higher than the end surface of the water absorption section away from the water absorption section.

[0044] The drainage component of the present application is made of hydrophilic material, which can absorb the water on the lens exposed surface and discharge the absorbed water through the water discharge section, thereby improving the influence of the water on the camera module. The drainage component is arranged in the shell of the camera module, which basically does not affect the appearance of the camera module and is convenient for use of the camera module. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings by those skilled in the art without departing from the scope of the present application.

[0046] Figure 1 is a schematic diagram of the camera module of the present application;

[0047] Figure 2 This is a schematic diagram of the drainage component structure according to an embodiment of this application;

[0048] Figure 3 This is a schematic diagram of the absorption section being disposed in the lens according to an embodiment of this application;

[0049] Figure 4 This is an embodiment of the present application. Figure 3 Enlarged view of section A in the middle;

[0050] Figure 5 This is a schematic diagram of the first through hole on the pressure ring in an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the water guide channel in an embodiment of this application;

[0052] Figure 7 This is an embodiment of the present application. Figure 6 Enlarged view of section B;

[0053] Figure 8 This is a schematic diagram showing the distance between the first inner flange and the absorbent section in an embodiment of this application;

[0054] Figure 9 This is a schematic diagram of the height difference between the water absorption section and the drainage section in an embodiment of this application;

[0055] Figure 10 This is a schematic diagram of the thickened water conveyance section in an embodiment of this application;

[0056] Figure 11 This is a schematic diagram of the thickened water conveying section disposed on the shell according to an embodiment of this application;

[0057] Figure 12 This is a front view of the camera module according to an embodiment of this application;

[0058] Figure 13 This is a schematic diagram of the stepped water conveyance section in an embodiment of this application;

[0059] Figure 14 This is a schematic diagram of the arc-shaped water conveyance section in an embodiment of this application;

[0060] Figure 15 yes Figure 14 Top view of the drainage component;

[0061] Figure 16 This is a schematic diagram of the water conveyance section being disposed in the receiving tank according to an embodiment of this application;

[0062] Figure 17 This is a schematic diagram of the conical section provided in the drainage section according to an embodiment of this application;

[0063] Figure 18 This is a schematic diagram of an embodiment of the present application with multiple tapered portions;

[0064] Figure 19 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0065] Figure 20 is a schematic view of an embodiment of the application in which the housing is provided with a second inner flange;

[0066] Figure 21 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0067] Figure 22 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0068] Figure 23 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0069] Figure 24 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0070] Figure 25 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens;

[0071] Figure 26 is a schematic view of an embodiment of the application in which the water absorption section is arranged between the housing and the lens. DETAILED DESCRIPTION

[0072] Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the figures, and descriptions of the same elements will not be repeated.

[0073] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the techniques described herein can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, methods, devices, implementations, materials, and so forth have not been described in detail in order to avoid obscuring aspects of the disclosure.

[0074] The terms "first", "second", and the like in the description and in the claims of the present application and above-described drawings are used to distinguish different objects, and are not used to describe a particular order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product, or device.

[0075] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings.

[0076] As shown in Figure 1 The embodiment of the present application provides a camera module 100, which comprises a shell 1, a lens 2, and an image sensor 4. The inside of the shell 1 is a cavity, the lens 2 and the image sensor 4 are arranged in the cavity of the shell 1, light passes through the lens 2 to reach the image sensor 4, and imaging is realized. The lens of the lens 2 is exposed to the surface of the shell 1 as a lens exposed surface 2a. When it rains or someone deliberately pours water, water accumulation 200 is usually formed at the bottom end of the camera module 100, the water accumulation 200 covers at least part of the lens exposed surface 2a of the lens 2, which can cause the camera module 100 to blur the collected picture or even completely fail to collect the picture, affecting the normal work of the camera module 100.

[0077] As shown in Figure 2 and Figure 3 The lens 2 comprises a lens 22. The camera module 100 of the embodiment further comprises a drainage component 3, which is arranged between the shell 1 and the lens 22. The drainage component 3 is made of hydrophilic material and can absorb water accumulation on the camera module 100. Optionally, the drainage component 3 is a sponge, linen, non-woven fabric, wood pulp block, or other elastic materials with micropores. The drainage component 3 comprises a water absorption section 31, a water conveying section 32, and a water drainage section 33 connected in sequence. Optionally, the water absorption section 31, the water conveying section 32, and the water drainage section 33 are integrally formed.

[0078] The water-absorbing section 31 is positioned near the exposed surface 2a of the lens and is capable of absorbing water 200 accumulated on the exposed surface 2a of the lens. Optionally, the water-absorbing section 31 abuts against the sidewall of the lens 22, or it may not abut against the sidewall of the lens 22. For example, the water-absorbing section 31 absorbs the water 200 under the action of hydrophilic groups and capillary structure. One end of the water-transporting section 32 is connected to the water-absorbing section 31, and the other end of the water-transporting section 32 is connected to the drainage section 33. The water-transporting section 32 can transport the water 200 absorbed by the water-absorbing section 31 to the drainage section 33. For example, the water 200 absorbed by the water-absorbing section 31 gradually diffuses in the drainage component 3, and the water 200 diffuses to the drainage section 33 via the water-transporting section 32. After the camera module 100 is installed on the electronic device, at least part of the drainage section 33 extends roughly vertically. Under the action of water tension and gravity, the water in the drainage section 33 forms water droplets 300 at the bottom of the drainage section 33. The water droplets 300 gradually increase in size. When the gravity of the water droplets 300 is greater than the surface tension of the water droplets 300 and the intermolecular force between the water droplets 300 and the drainage component 2, the water droplets 300 fall off to drain the water 200 from the drainage component 3, forming a continuous cycle of absorbing and draining water, thus preventing a large amount of water from accumulating on the lens 2.

[0079] Optionally, the water absorption section 31 is the head end of the drainage component 3, and the water absorption section 31 is located between the housing 1 and the lens 2 or inside the lens 2. The drainage section 33 is the tail end of the drainage component 3, extending approximately vertically. The portion of the drainage component 3 located between the water absorption section 31 and the drainage section 33 is the water delivery section 32.

[0080] In this embodiment, the drainage component 3 is made of a hydrophilic material, which can absorb water accumulated on the exposed surface 2a of the lens, thereby improving the problem of reduced imaging range and decreased image quality caused by water accumulation on the exposed surface 2a of the lens in rainy or splashing conditions. The drainage component 3 is disposed inside the housing 1, and has little impact on the shape and size of the camera module 100, making it convenient for the installation and use of the camera module 100.

[0081] like Figure 3 and Figure 4 As shown, in some embodiments, the lens 2 includes a lens barrel 21, a lens element 22, and a retaining ring 23. The lens barrel 21 has an internal cavity, and the lens element 22 is disposed within the cavity of the lens barrel 21. Optionally, the lens element 22 includes multiple lenses stacked sequentially. For example, a second lens 222 is disposed on a third lens 223, and a first lens 221 is disposed on a second lens 222. The top surface of the first lens 221 is exposed outside the housing 1, and the top surface of the first lens 221 is the lens exposed surface 2a. The retaining ring 23 is disposed at the top of the lens barrel 21. Optionally, the retaining ring 23 is threadedly connected to the lens barrel 21 or bonded to it. The retaining ring 23 is used to press the lens element 22. For example, the retaining ring 23 presses the first lens 221 from above to press the lens element 22 tightly, thereby fixing the lens element 22.

[0082] The water absorption section 31 of the drainage component 3 is located on the inner side of the pressing ring 23, and the pressing ring 23 can slightly press the water absorption section 31 of the drainage component 3 to fix the water absorption section 31. Optionally, the end face 311 of the water absorption section 31 away from the water delivery section 32 abuts against the outer wall of the first lens 221, facilitating the water absorption section 31 to absorb the accumulated water 200.

[0083] As shown in Figure 5 some embodiments, the side wall of the pressing ring 23 is provided with a first through hole 231 matched with the drainage component 3. The end face 311 of the water absorption section 31 away from the water delivery section 32 is located on the inner side of the pressing ring 23, the drainage component 3 passes through the first through hole 231, and the drainage component 3 extends to the outer side of the pressing ring 23 through the first through hole 231.

[0084] Optionally, the outer wall of the pressing ring 23 is provided with a first recess 232 matched with the drainage component 3. The first recess 232 extends downward from the first through hole 231, and optionally, the first recess 232 extends to the bottom end of the pressing ring 23. After the drainage component 3 passes out of the first through hole 231, the drainage component 3 extends along the first recess 232. The water absorption section 31 of the drainage component 3 is embedded in the pressing ring 23, and basically does not affect the size of the pressing ring 23.

[0085] As shown in Figure 6 and Figure 7 some embodiments, the top end of the pressing ring 23 is provided with a first inner flange 234 capable of pressing the lens from above. Optionally, the thickness of the first inner flange 234 gradually increases from inside to outside along the radial direction of the pressing ring 23. The bottom surface of the first inner flange 234 is provided with a water guide groove 233 extending downwardly and obliquely from the inner wall 2341 of the first inner flange 234. The water absorption section 31 of the drainage component 3 abuts against the water guide groove 233, and the water guide groove can guide the accumulated water 200 at the lens exposed surface 2a of the camera module 100 to the water absorption section 31, so that the drainage component 3 absorbs the accumulated water 200.

[0086] In some embodiments, the number of water guide grooves 233 is multiple. The cross-sectional area of a single water guide groove 233 is 0.04-0.06mm 2 , for example, the cross-sectional area of the water guide groove 233 is 0.05mm 2 . The number of water guide grooves 233 is determined according to requirements, for example, the number of water guide grooves 233 is five. Multiple water guide grooves 233 are arranged on the pressing ring 23, facilitating the water guide grooves 233 to quickly guide the accumulated water 200 to the drainage component 3, and avoiding excessive accumulation of the accumulated water 200 at the bottom end of the camera module 100, which affects the normal work of the camera module 100.

[0087] As shown in Figure 8As shown, in some embodiments, the distance d between the inner wall 2341 of the first inner flange 234 and the end face 311 of the water absorption section 31 away from the water delivery section 32 is ≤3mm. For example, the distance d between the inner wall 2341 of the first inner flange 234 and the end face 311 of the water absorption section 31 away from the water delivery section 32 is 2mm, which facilitates the absorption of accumulated water by the drainage component 3. The smaller the distance d between the inner wall 2341 of the first inner flange 234 and the end face 311 of the water absorption section 31 away from the water delivery section 32, the faster the accumulated water 200 is absorbed.

[0088] The first inner flange 234 covers the water absorption section 31, which does not protrude from the end face of the pressure ring 23, thus hiding the drainage component 3, reducing the impact of the drainage component 3 on the appearance of the camera module 100, and improving the overall aesthetics of the camera module 100.

[0089] In some embodiments, the end of the absorbent section 31 is flush with the end face of the pressure ring 23. For example, the top of the end face 311 of the absorbent section 31 is flush with the top surface of the pressure ring 23, and the drainage component 3 is slightly exposed outside the pressure ring 23, so that the drainage component 3 can absorb the accumulated water more quickly.

[0090] like Figure 9 As shown, in some embodiments, after the camera module 100 is installed on the electronic device, the end face 311 of the water absorption section 31 away from the water delivery section 32 is higher than the end face 331 of the drainage section 33 away from the water delivery section 32. For example, after the camera module 100 is installed on a car, the end face 311 of the water absorption section 31 away from the water delivery section 32 is in an inclined state, and the end face 331 of the drainage section 33 away from the water delivery section 32 is approximately horizontal. The lowest point of the end face 311 of the water absorption section 31 is higher than the end face 331 of the drainage section 33, which facilitates the drainage section 33 to discharge water from the drainage component 3. The greater the height difference between the lowest point of the end face 311 of the water absorption section 31 and the end face 331 of the drainage section 33, the more beneficial it is for the drainage section 33 to discharge water.

[0091] like Figure 2 As shown, in some embodiments, the side wall of the housing 1 is provided with a second through hole 11 communicating with the cavity of the housing 1. The drainage component 3 passes through the second through hole 11, and the drainage section 33 extends to the outside of the housing 1 to discharge the water absorbed by the drainage component 3 from the housing 1. For example, the water absorption section 31 is located between the housing 1 and the lens 2, the water delivery section 32 extends close to the inner wall of the housing 1, and the drainage section 33 extends out of the housing 1 from the second through hole 11. At least part of the drainage section 33 is located approximately vertically. The water in the drainage component 3 gathers towards the lowest point of the drainage section 33 under the action of gravity, gradually forming water droplets 300 before falling off.

[0092] Optionally, the end of the drainage section 33 is flush with the second through hole 11, or the drainage section 33 is located in the cavity of the outer shell 1, the drainage component 3 does not extend out of the outer shell 1, and a flow guiding structure is provided on the outer shell 1 to discharge the water droplets falling from the drainage section 33 out of the outer shell 1.

[0093] like Figure 10 As shown, in this embodiment, the radial cross-section of the diversion component 3 refers to the cross-section perpendicular to the long side 3a of the diversion component 3. For example, the radial cross-section b of the water conveying section 32 is a cross-section perpendicular to the long side of the water conveying section 32. In some embodiments, the area of ​​the radial cross-section b of the water conveying section 32 is larger than the area of ​​the radial cross-section of the drainage section 33.

[0094] For example, the water conveying section 32 includes a flush portion 321 and a thickened portion 322. The sidewall of the flush portion 321 is flush with the sidewall of the drainage section 33. The thickened portion 322 is disposed on the sidewall of the flush portion 321 to increase the area of ​​the radial cross-section b of the water conveying section 32. Increasing the area of ​​the radial cross-section b of the water conveying section 32 can increase the water conveying capacity of the water conveying section 32 and improve the water absorption rate before the diversion component 3 is saturated.

[0095] like Figure 11 and Figure 12 As shown, optionally, the thickened portion 322 is approximately rectangular. The size of the thickened portion 322 is determined according to the settings. The thickened portion 322 should avoid the lens 2 to prevent interference between the thickened portion 322 and the lens 2 during assembly.

[0096] Optionally, the ratio of the minimum area of ​​the radial section b of the water conveyance section 32 to the area of ​​the exposed surface 2a of the lens is ≥1:200.

[0097] like Figure 13 As shown, in some embodiments, the thickened portion 322 of the water conveying section 32 is stepped, making the water conveying section 32 as a whole stepped. For example, the thickness is greatest in the middle of the water conveying section 32, and the thickness of the water conveying section 32 decreases in a stepped manner from the middle to both ends, which is beneficial to improving the water conveying capacity of the water conveying section 32.

[0098] like Figure 14 and 15 As shown, in some embodiments, at least one sidewall of the water conveying section 32 is an arc surface. For example, the side view of the thickened portion 322 of the water conveying section 32 is trapezoidal, and the surface 323 of the thickened portion 322 away from the flush portion 321 is an outwardly convex arc surface, so as to increase the thickness of the water conveying section 32, increase the water conveying capacity of the water conveying section 32, and improve the water absorption speed of the diversion component 3 before saturation.

[0099] Optionally, the specific shape of the thickened portion 322 of the water conveyance section 32 can be set according to requirements to adapt to the shape of other components in the cavity of the outer shell 1, so as to avoid interference between the thickened portion 322 and other components in the cavity of the outer shell 1.

[0100] As shown in Figure 16 some embodiments, the inner wall of the shell 1 is provided with a receiving groove 12, and the at least partial water delivery section 32 is located in the receiving groove 12. For example, a thickened portion 322 is arranged on the side wall of the shell 1 near the flush portion 321, the receiving groove 12 is matched with the thickened portion 322, and the thickened portion 322 is arranged in the receiving groove 12. By arranging the partial water delivery section 32 in the receiving groove 12, the space occupied by the drainage component 3 in the shell 1 is reduced, the other components of the camera module 100 can be arranged in the cavity of the shell 1, and the utilization rate of the cavity of the shell 1 is improved.

[0101] As shown in Figure 17 some embodiments, the end of the water drainage section 33 is a sharp end. The water drainage section 33 includes a water drainage section body 332 and a tapered portion 333. One end of the water drainage section body 332 is connected to the water delivery section 32, and the tapered portion 333 is arranged at the other end of the water drainage section body 332. The cross section of the tapered portion 333 gradually decreases from top to bottom.

[0102] According to the Laplace pressure difference, the molecules inside the water droplet are subjected to the pulling force of the inward surface tension, while the molecules outside the water droplet are not subjected to the corresponding pressure to balance the pulling force, resulting in a net inward force on the water droplet at the edge of the sharp object, which promotes the separation of the water droplet from the edge of the sharp object. By arranging the end of the water drainage section 33 away from the water delivery section 32 as a sharp end, the water droplet is separated from the water drainage section 33, and the water drainage efficiency of the drainage component 3 is improved.

[0103] The smaller the angle A of the sharp end of the water drainage section 33, the stronger the water drainage capacity of the water drainage section 33, and A≤45°.

[0104] As shown in Figure 18 optionally, the number of tapered portions 333 is multiple, for example, the number of tapered portions 333 is two, which is conducive to further improving the water drainage efficiency of the drainage component 3.

[0105] As shown in Figure 19 some embodiments, the water absorption section 31 of the drainage component 3 is located between the shell 1 and the lens 2. For example, the water absorption section 31 is located between the shell 1 and the compression ring 23 of the lens 2. By arranging the water absorption section 31 outside the compression ring 23, the drainage component 3 will not affect the shape and size of the lens 2. The accumulated water at the bottom end of the camera module 100 is absorbed into the drainage component 3 under the action of surface tension and capillary action. The accumulated water in the drainage component 3 is transported to the water drainage section 33 through the water delivery section 32, and the accumulated water in the water drainage section 33 is discharged by gravity.

[0106] As described above Figure 20As shown, in some embodiments, a second inner flange 13 is provided at the end of the housing 1. The second inner flange 13 abuts against and covers the absorption section 31 to hide the drainage component 3 between the housing 1 and the lens 2, thereby improving the aesthetics of the camera module 100. The second inner flange 13 also provides better protection for the pressure ring 23. Accumulated water flows through the gap between the second inner flange 13 and the pressure ring 23 to the absorption section 31. After the drainage component 3 absorbs the accumulated water, it is discharged through the drainage section 33.

[0107] In some embodiments, the drainage component 3 is made of a hydrophilic material, facilitating rapid absorption of accumulated water. In some embodiments, the drainage component 3 is made of a microporous elastic material, with a water absorption capacity per unit mass ≥ 3 g / g and a density of 0.02–0.5 g / cm³. 2 For example, the water absorption capacity per unit mass of the drainage component 3 is 5 g / g, and its density is 0.2 g / cm³. 2 The drainage component 3 has strong hydrophilicity and can absorb water accumulated at the bottom of the camera module through the action of hydrophilic groups and capillary structure. The water inside the drainage component 3 is discharged through the drainage section 33.

[0108] The unit mass water absorption capacity of the drainage component 3 is ≥3g / g, which ensures that the drainage component 3 has a strong water absorption capacity.

[0109] The density of the drainage component 3 is set at 0.02–0.5 g / cm³. 2 Within this range, the drainage component 3 can have a large volume but a small mass, ensuring good water absorption capacity while reducing weight.

[0110] The drainage component 3 is elastic, with a material resilience rate of ≥5%. It undergoes elastic deformation after being subjected to external force and returns to its original shape after the external force is removed. The elastic deformation of the drainage component 3 can compensate for assembly accuracy errors of different camera modules 100. Even if different camera modules have slightly different sizes, drainage components of the same size can be used, improving the consistency of mass production of camera modules 100.

[0111] like Figure 21 As shown, in some embodiments, the ratio of the area of ​​the radial cross-section c of the water-absorbing section 31 to the area of ​​the exposed surface 2a of the lens 2 is ≥1:200. The larger the area of ​​the radial cross-section of the water-absorbing section 31, the faster the water-absorbing section 31 absorbs the accumulated water 200.

[0112] In some embodiments, the lens barrel 21 and the pressure ring 23 of the lens 2 are integrally formed, which facilitates the manufacturing of the lens 2. Multiple lenses are installed inside the lens barrel, and then the first inner flange 234 of the pressure ring is bent and pressed onto the first lens 221 by rolling. The water absorption section 31 can be located inside or outside the pressure ring 23.

[0113] As shown in Figure 22 some embodiments, the end face 311 of the water absorption section 31 away from the water delivery section 32 is a concave arc surface. When the end face 311 of the water absorption section 31 is located inside the pressure ring 23, the end face 311 of the water absorption section 31 can be tightly attached to the side wall of the first lens 221. When the end face 311 of the water absorption section 31 is located outside the pressure ring 23, the end face 311 of the water absorption section 31 can be tightly attached to the pressure ring 23.

[0114] Optionally, the width D1 of the water absorption section 31 is greater than the width D2 of the water delivery section 32, so as to facilitate the water absorption section 31 to quickly absorb the accumulated water. For example, the width D1 of the water absorption section 31 is 3 mm, and the width D2 of the water delivery section 32 is 2 mm.

[0115] As shown in Figure 23 and Figure 24 some embodiments, the water absorption section 31 is annular to increase the volume of the water absorption section 31. For example, the water absorption section 31 is arranged inside the pressure ring 23, and the water absorption section 31 can absorb the accumulated water along the circumferential direction of the lens 2 to provide the cleanliness of the lens.

[0116] As shown in Figure 25 a plurality of water guide grooves 233 are arranged on the first inner flange 234 of the pressure ring 23, for example, the number of the water guide grooves 233 is 11. The plurality of water guide grooves 233 are arranged along the circumferential direction of the pressure ring 23. Optionally, the plurality of water guide grooves 233 are uniformly distributed along the circumferential direction of the pressure ring 23. This facilitates the water absorption section 31 to absorb the accumulated water on the edge of the lens 22.

[0117] As shown in Figure 26 the annular water absorption section 31 is arranged between the housing 1 and the lens 2, for example, the water absorption section 31 is arranged between the housing 1 and the pressure ring 23, which improves the water absorption capacity of the water absorption section 31.

[0118] In some embodiments, the lens exposed surface 2a is provided with a hydrophilic layer. For example, the hydrophilic layer is a hydrophilic coating or a hydrophilic plating film, so that the water on the entire lens exposed surface 2a can better gather near the drainage component 3, thereby absorbing and removing the accumulated water as much as possible, and improving the water removal effect of the drainage component 3.

[0119] The present embodiment provides an electronic device, which includes an electronic device body and the camera module 100 as described above, and the camera module 100 is arranged on the electronic device body. For example, the electronic device is a vehicle-mounted electronic device. The present application absorbs the accumulated water through the microporous material, without the need for excessive processing of the housing 1. The volume of the drainage component 3 is relatively small, which can be arranged between the pressure ring 23 and the housing 1, or partially extended into the pressure ring 23, and has a smaller influence on the appearance of the camera module 100. The drainage component 3 has relatively large elasticity, and when being pressed, the elastic deformation of the drainage component 3 can compensate for the assembly error of the camera module 100, and the assembly precision requirement of the camera module 100 is relatively low.

[0120] The above has introduced the embodiments of the present application in detail. The principles and implementation manners of the present application are described by applying specific examples in this paper, and the above embodiment descriptions are only used to help understand the technical solutions of the present application and the core ideas thereof. Therefore, the changes or deformations made by the person skilled in the art according to the ideas of the present application, based on the specific implementation manners and application ranges of the present application, all belong to the protection scope of the present application. In summary, the content of the present specification should not be understood as the limitation of the present application.

Claims

1. An image capturing module, comprising: The application relates to a camera module. The camera module comprises: a housing; a lens arranged in the housing, the lens comprising a lens surface; a drainage component arranged between the housing and the lens, the drainage component comprising: a water absorption section for absorbing water accumulated on the lens surface of the lens; a water conveying section connected to one end of the water absorption section; 2. The camera module of claim 1, wherein, a water discharge section connected to the other end of the water conveying section, the water conveying section conveying the water accumulated on the water absorption section to the water discharge section, and the water discharge section being used for discharging the water accumulated on the water absorption section. The lens further comprises: a lens barrel, the lens being arranged in the lens barrel; 3. The camera module of claim 2, wherein, a compression ring arranged in the lens barrel, the compression ring being used for compressing the lens, and the water absorption section of the drainage component being located inside the compression ring.

4. The camera module of claim 2, wherein, A first through hole is arranged on the side wall of the compression ring, and the drainage component passes through the first through hole.

5. The camera module of claim 4, wherein, A first inner flange is arranged on the end of the compression ring, and the bottom surface of the first inner flange is provided with at least one water guide groove capable of guiding the water accumulated on the water absorption section to the water absorption section.

6. The camera module of claim 2, wherein, The distance between the inner wall of the first inner flange and the end surface of the water absorption section is less than or equal to 3 mm.

7. The camera module of claim 1, wherein, The end of the water absorption section is flush with the end surface of the compression ring.

8. The camera module of claim 1, wherein, The housing is provided with a second through hole, and the drainage component passes through the second through hole.

9. The camera module of claim 8, wherein, The radial cross-sectional area of the water conveying section is greater than or equal to the radial cross-sectional area of the water discharge section. The water conveying section is in a stepped shape; or 10. The camera module of claim 9, wherein, At least one side wall of the water conveying section is an arc surface.

11. The camera module of claim 1, wherein, The housing is provided with a containing groove, and at least part of the water conveying section is located in the containing groove. The water discharge section comprises: a water discharge section body connected to one end of the water conveying section; 12. The camera module of claim 1, wherein, a tapered section arranged on the other end of the water discharge section body.

13. The camera module of claim 12, wherein, The water absorption section of the drainage component is located between the housing and the lens.

14. The camera module of claim 12, wherein, The water absorption section is located between the housing and the compression ring of the lens.

15. The camera module of claim 1, wherein, The end of the housing is provided with a second inner flange, and the second inner flange abuts against the water absorption section.

16. The camera module of claim 1, wherein, The drainage component is a hydrophilic material.

17. The camera module of claim 1, wherein, The drainage component is an elastic material with micropores.

18. The camera module of claim 1, wherein, The drainage member has a density of 0.02 to 0.5 g / cm 2 .

19. The camera module of claim 1, wherein, The water absorption capacity per unit mass of the drainage component is greater than or equal to 3 g / g.

20. The camera module of claim 1, wherein, The material resilience of the drainage component is greater than or equal to 5%. The ratio of the radial cross-sectional area of the water absorption section to the area of the lens surface is greater than or equal to 1:

200.

21. The camera module of claim 1, wherein, The ratio of the radial cross-sectional area of the water conveying section to the area of the lens surface is greater than or equal to 1:

200. The lens surface is provided with a hydrophilic layer.

22. The camera module according to any one of claims 1-21, wherein: the end surface of the water absorption section is an arc surface, or 23. An electronic device, comprising: the water absorption section is in a ring shape. The application further relates to an electronic device. The camera module is arranged in the electronic device.

24. The electronic device of claim 23, wherein, The end surface of the water absorption section away from the water conveying section is higher than the end surface of the water discharge section away from the water conveying section.

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