CN112532825B - Dustproof and rainproof protection structure of camera module - Google Patents
Dustproof and rainproof protection structure of camera module Download PDFInfo
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- CN112532825B CN112532825B CN202010960170.XA CN202010960170A CN112532825B CN 112532825 B CN112532825 B CN 112532825B CN 202010960170 A CN202010960170 A CN 202010960170A CN 112532825 B CN112532825 B CN 112532825B
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- side wall
- camera module
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- shell
- airflow
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- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000004304 visual acuity Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 rain Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Lens Barrels (AREA)
Abstract
The invention discloses a dustproof and rainproof protection structure of a camera module, which comprises: the camera comprises an outer shell, an inner shell and a camera module, wherein the rear end of the outer shell is provided with an air inlet, and the front end of the outer shell is provided with an air outlet; the inner shell is accommodated in the outer shell, the outer side wall of the inner shell and the inner side wall of the outer shell define together to form an airflow channel, and the airflow channel is connected with the airflow inlet and the airflow outlet; the camera module is accommodated in the inner shell, an opening is arranged at the front end of the inner shell, and a lens of the camera module is accommodated in the opening and aligned to the airflow outlet; compressed gas enters the airflow channel through the airflow inlet and is quickly discharged from the airflow outlet, so that water drops or pollutants are blown outwards to be far away from the camera module lens, and the lens is prevented from being shielded.
Description
The invention claims priority of patent application in taiwan area of china with application number 108133415 and priority date of 2019, 9 and 17.
Technical Field
The present invention relates to a camera module dustproof and rainproof structure, and more particularly to a camera module dustproof and rainproof structure for use in a vehicle imaging system, a self-supporting vehicle system, or an unmanned aerial vehicle or an unmanned vehicle.
Background
Due to the development of vehicle imaging systems (such as a back-up camera and a driving recorder) and the technology of automatically driving an unmanned vehicle, the camera module for the vehicle becomes an important component in the electronic equipment for the vehicle. In addition, unmanned automatic aircrafts and unmanned underwater vehicles also depend on camera modules as sensors of environmental situations, so that the camera modules are more and more widely applied.
Since vehicles and various unmanned vehicles need to run in severe weather, the camera module still needs to maintain normal operation in severe weather, and thus the requirement of the camera module on waterproof performance is very strict. In addition, in the case of a bad weather such as rain or snow, the lens of the camera module is easily stained by impurities such as rain, sand, mud, etc. to reduce the resolution, so that the camera module must also adopt a proper lens protection measure.
The lens protection measures adopted by the existing camera module are to arrange a protective coating film or coating on the surface of a lens of the lens, wherein the protective coating film or coating usually has hydrophobicity so that water drops cannot be attached to the surface of the lens. The other protection measure is to arrange a protective lens in front of the lens to isolate the lens so as to prevent water drops, dust or mud from adhering to the lens.
However, the protection measures adopted by the existing camera module can reduce the chance of the lens adhering water drops or pollutants, but the water drops or pollutants can still briefly contact the lens or the protective lens of the camera lens, and if the rain is too strong, the lens is shielded by rain, so that the image resolution is reduced or even the image cannot be correctly captured.
Due to the reasons, the existing camera module cannot effectively protect the camera lens from being invaded by rainwater and cannot normally operate in severe weather. Therefore, how to overcome the above-mentioned drawbacks by improving the structural design has become one of the important issues to be solved by the industry.
Disclosure of Invention
The invention aims to solve the technical problems that the existing camera module is insufficient in protection performance and the lens resolving power is easy to reduce in severe weather.
In order to solve the technical problems, the technical principle adopted by the invention is that an airflow channel is used for covering the lens framing imaging range of the camera module, and substances such as water drops, dust, mud and the like are blown outwards by high-pressure high-speed airflow to be away from the framing imaging ring of the camera lens, so that the lens of the camera module is protected from being shielded by pollutant, the camera module can cope with severe weather all day long, and the image resolving power is improved.
In one embodiment of the present invention, an image module protection structure is provided, which includes: the air conditioner comprises an outer shell, a fan and a controller, wherein the outer shell is provided with a front end and a rear end which are opposite to each other in the central axis direction, the rear end of the outer shell is provided with an air inlet, and the front end of the outer shell is provided with an air outlet; the inner shell is accommodated in the outer shell, an accommodating space is formed in the inner shell and is used for accommodating a camera module, an opening is formed in the front end of the inner shell, the center of the opening is aligned to the airflow outlet, and a lens of the camera module is accommodated in the opening, so that the lens can capture images through the airflow outlet; the diameter of the outer side wall of the inner shell is smaller than that of the inner side wall of the outer shell, an air flow channel is formed by the outer side wall of the inner shell and the inner side wall of the outer shell in a defined mode, the air flow channel is communicated with the air flow inlet and the air flow outlet, and air can enter the air flow channel through the air flow inlet and is discharged to the outer side of the outer shell from the air flow outlet.
In a preferred embodiment of the present invention, the inner housing is provided with a support ring surrounding an outer side wall of the inner housing, and the outer side wall of the support ring contacts an inner side wall of the outer housing, the inner side wall of the support ring has a larger diameter than the outer side wall of the inner housing, and a plurality of ribs are provided between the inner side wall of the support ring and the outer side wall of the inner housing.
In a preferred embodiment of the present invention, the outer casing has a front casing and a rear casing, the front end of the rear casing has a sleeving part, the rear end of the front casing has a clamping part, and the clamping part and the sleeving part can be connected to each other, so that the front casing and the rear casing are sleeved together relatively to form the outer casing.
In a preferred embodiment of the present invention, the diameter of the outer sidewall of the clamping portion of the front housing is matched with the diameter of the inner sidewall of the sleeve portion, so that the clamping portion can be sleeved on the inner sidewall of the sleeve portion, and the outer sidewall of the clamping portion and the inner sidewall of the sleeve portion are respectively provided with a flange and a clamping groove which can be clamped with each other, so that the clamping portion and the sleeve portion can be clamped and positioned with each other.
In a preferred embodiment of the present invention, a front end of the outer side wall of the inner housing forms a front end surface, a front end of the inner side wall of the outer housing forms a front side wall, the front side wall and the front end surface together define an outlet portion forming the airflow passage, and the front end surface and the front side wall are perpendicular to the central axis, so that the outlet portion of the airflow passage is perpendicular to the central axis.
The invention has the advantages that the lens of the camera module can be effectively prevented from being shielded by rainwater or other pollutants, and the camera module is effectively protected.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic perspective view of a camera module of an embodiment of the dustproof and rainproof protection structure of the present invention;
FIG. 2 is a schematic exploded perspective view of a dustproof and rainproof protection structure of a camera module according to an embodiment of the present invention;
FIG. 3 is a partially exploded perspective view of the dustproof and rainproof protection structure of the camera module according to the present invention;
FIG. 4 is a schematic perspective view of the dustproof and rainproof protection structure of the camera module according to the present invention;
FIG. 5 is a schematic front view of an inner housing employed in the dustproof and rainproof protection structure of the camera module according to the present invention;
FIG. 6 is a schematic sectional view of the camera module with a dustproof and rainproof structure;
fig. 7 is a schematic perspective view of airflow formed by the dustproof and rainproof protection structure of the camera module according to the present invention.
Detailed Description
The following is a description of the embodiments of the present disclosure relating to a dustproof and rainproof structure of a camera module, and those skilled in the art can understand the advantages and effects of the present disclosure from the disclosure of the present disclosure. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.
It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.
As shown in fig. 1 to 4, an embodiment of the present invention provides a dustproof and rainproof protection structure 1 for a camera module, including: an outer housing 10, an inner housing 20, and a camera module 30.
As shown in fig. 2 and 3, in the present embodiment, the outer casing 10 includes a front casing 11 and a rear casing 12, the front end of the rear casing 12 has a sleeving part 121, and the rear end of the front casing 11 has a clamping part 111. In this embodiment, the outer diameter of the clamping portion 111 is matched with the inner diameter of the sleeve portion 121, so that the sleeve portion 121 can be sleeved outside the clamping portion 111. And the outside of joint portion 111 sets up a flange, and the inboard position that corresponds to the flange of joint portion 111 of cup joint portion 121 sets up a draw-in groove, and when cup joint portion 121 registrates in the outside of joint portion 111, the flange of joint portion 111 can with the draw-in groove of cup joint portion 121 mutual block, and make joint portion 111 and cup joint portion 121 fix a position together with the block. In addition, a gasket 24 can be disposed at the joint of the clamping portion 111 and the sleeve portion 121 to prevent moisture from permeating through the joint gap between the clamping portion 111 and the sleeve portion 121. The front housing 11 and the rear housing 12 are combined into a whole by the engagement of the sleeve portion 121 and the engaging portion 111.
Further, the outer case 11 is provided with an air inlet port 14 at the rear end in the direction of the central axis C, and an air outlet port 13 at the front end of the outer case 11 in the direction of the central axis C. In this embodiment, the airflow inlet 14 and the airflow outlet 13 are arranged at the rear end and the front end of the outer casing 10 in the direction of the central axis C, and the airflow inlet 14 can be connected to a gas delivery device (not shown), which can be, for example: fan, air compressor, blower, air pump, high pressure gas bomb, etc. The gas output by the gas delivery device enters the inside of the outer shell 10 through the gas flow inlet 14 and then is discharged to the outside of the outer shell 10 through the gas flow outlet 13.
The inner housing 20 is accommodated inside the outer housing 10. in the embodiment, the inner housing 20 includes a front section 21 and a rear section 22. the front section 21 and the rear section 22 of the inner housing 20 can be combined together relatively to form a whole. As shown in fig. 4 and 6, an accommodating space is formed inside the inner housing 20 for accommodating the camera module 30, an opening 211 is disposed at the front end of the inner housing 20, and the lens 31 of the camera module 30 is accommodated in the opening 211. The opening 211 is aligned with the airflow outlet 13 of the outer housing 10, and the diameter of the airflow outlet 13 is arranged to be larger than the viewing imaging range of the lens 31, so that the lens 31 can capture images outside the housing 10 through the opening 211 and the airflow outlet 13.
As shown in fig. 2 to 5, the inner housing 20 has a diameter smaller than that of the inner sidewall of the outer housing 10, and thus can be accommodated inside the outer housing 1. And a space is maintained between the outer side wall of the inner housing 20 and the inner side wall of the outer housing 10, so that the outer side wall of the inner housing 20 and the inner side wall of the outer housing 10 define together to form an air flow passage P. And the airflow path P communicates the airflow inlet 14 and the airflow outlet 13.
As shown in fig. 6 and 7, in a preferred embodiment of the present invention, the airflow inlet 14 can be connected to a blower and a dryer (not shown), the blower is connected to the dryer through a pipeline after pressurizing air, and after removing moisture from the compressed air through the dryer, the compressed air is delivered to the airflow inlet 14 at the rear end of the outer casing 10, so that the compressed air can flow to the airflow outlet 13 through the airflow passage P and then be discharged from the airflow outlet 13. Since the lens 31 of the camera module 30 is disposed at the center of the airflow outlet 13, when the compressed air is exhausted to the outside of the outer housing 10 through the airflow outlet 13, the compressed air can pass through the front side of the lens 31 and quickly blow from inside to outside, so as to blow out rainwater or impurities entering the airflow outlet 13, so as to maintain the lens surface of the camera lens 31 clean and avoid the lens 31 being shielded to cause the reduction of the resolving power.
In this embodiment, the inner housing 20 is positioned inside the outer housing 10 by a support ring 23, and the support ring 23 is disposed at the rear end of the front section 21 of the inner housing 20. The diameter of the outer side wall of the support ring 23 and the diameter of the inner side wall of the outer housing 10 are matched to be able to contact the inner side wall of the outer housing 10, and the inner housing 20 is positioned on the central axis C of the outer housing 10 by the support ring 23 contacting the inner side wall of the outer housing 10. In more detail, in the present embodiment, the position of the supporting ring 23 corresponds to the position of the clamping portion 111 of the front case 11, and the inner side wall of the rear end of the front case 11 is provided with a connecting groove 113 matched with the outer side wall of the supporting ring 23, and the outer side wall of the supporting ring 23 can be mutually clamped with the connecting groove 113, so that the supporting ring 23 is fixed inside the clamping portion 111 of the front case 11.
The diameter of the inner side wall of the support ring 23 is larger than the diameter of the outer side wall of the front section 21 of the inner housing 20, so that a space is kept between the inner side wall of the support ring 23 and the outer side wall of the front section 21 of the inner housing 20. And a plurality of ribs 231 are connected between the inner side wall of the support ring 23 and the outer side wall of the front section 21, the plurality of ribs 231 are radially disposed between the outer side wall of the front section 21 of the inner housing 20 and the support ring 23, and a sufficient interval is maintained between the respective ribs 231, so that the air flow path P is not blocked by the support ring 23.
Specifically, in the present embodiment, the rear end surface of the rear-stage portion 22 of the inner housing 20 forms a rear end surface 222 having an arc shape, the front side of the inner housing 20 forms a front end surface 212, and the outer side wall of the inner housing 20 between the rear end surface 222 and the front end surface 212 forms a side arc surface 223 having a gentle arc shape, so that the inner housing 20 is formed into an approximately oblong shape as a whole. The inner side wall of the outer housing 10 forms an accommodating cavity, and the inner housing 20 is completely covered inside the outer housing 10. And the rear end of the inner side wall of the outer housing 10 forms a rear concave surface 123 matched with the rear end surface 222 of the inner housing 20, and the portion of the inner side wall of the outer housing 10 corresponding to the side arc surface 223 of the inner housing 20 forms an arc-shaped side wall 124, and the front end of the inner side wall of the outer housing 10 forms a front side wall 112 adjacent to the front end surface 212 of the inner housing 20.
Wherein the rear end surface 222 of the inner housing 20 and the rear concave surface 123 of the outer housing 10 jointly define an inlet end forming the air flow passage P, the side arc-shaped surface 223 of the inner housing 20 and the arc-shaped side wall 124 of the outer housing 10 jointly define a middle section forming the air flow passage P, and the front end surface 212 of the inner housing 20 and the front side wall 112 of the outer housing 10 jointly define an outlet section P1 forming the air flow passage P. When the compressed gas enters the inside of the outer casing 10 from the gas flow inlet 14, the compressed gas can flow along the gas flow path P, and flow from the outlet portion P1 of the gas flow path P to the gas flow outlet 13, and then be discharged to the outside of the outer casing 10 from the gas flow outlet 13.
Wherein, the front end surface 212 of the inner housing 20 and the front side wall 112 of the outer housing 10 are arranged to be perpendicular to the central axis C of the outer housing 10, so that the outlet portion P1 of the air flow passage is also formed to be perpendicular to the central axis C of the outer housing 10, therefore, when the compressed air passes through the outlet portion P1, the compressed air can flow in the direction perpendicular to the optical axis of the lens 31 to pass through the front side of the lens 31 and then be discharged from the air flow outlet 13, so that an air curtain covering the front side of the lens 31 is formed, and water drops and other pollutants can be effectively isolated. As shown in fig. 7, when the airflow passes through the airflow channel P, a waterfall-shaped isolation airflow covering the inner housing 20 can be formed, and the isolation airflow covers the front side of the lens 31, so that the lens 31 can be effectively isolated from contacting moisture and other contaminants.
In addition, the present invention arranges the interval between the rear end surface 222 of the inner housing 20 and the rear concave surface 123 of the outer housing 10 to be greater than the interval between the side arc-shaped surfaces 223 of the inner housing and the arc-shaped side walls 124 of the outer housing, while arranging the interval between the side arc-shaped surfaces 223 of the inner housing and the arc-shaped side walls 124 of the outer housing 10 to be greater than the interval between the front end surface 212 of the inner housing 20 and the front side walls 112 of the outer housing. With the above arrangement, the sectional area of the flow path at the inlet end of the gas flow path P is larger than the sectional area of the middle section part, and the sectional area of the middle section part is larger than the sectional area of the outlet part P1, so that when the gas flows through the outlet part P1 of the gas flow path P, the flow rate of the gas is increased due to the reduction of the flow path area, and the gas pressure is increased, thereby more effectively blowing water droplets or contaminated impurities away from the gas flow outlet 13.
In addition, as shown in fig. 3, the rear end of the outer casing 10 is provided with a threading hole 122, and the rear end of the inner casing 20 is provided with a threading tube 221 at a position corresponding to the threading hole 122, so that when the inner casing 20 and the outer casing 10 are assembled together, the threading tube 221 can be aligned with the threading hole 122, and the end of the threading tube 221 is engaged with the threading hole 122. The threading pipe 221 and the threading hole 122 are commonly combined as a passage connected to the inside of the inner case 20 from the outside of the outer case 10, so that the cable for supplying power and transmitting signals to the camera module 30 can be passed through the threading hole 122 and the threading pipe 221 into the inside of the inner case 20 and connected to the camera module 30. And in order to reach waterproof purpose, the junction of threading pipe 221 and threading hole 122 is close to each other to the junction of threading pipe 221 and threading hole 122 can also be sealed through the mode of gluing, in order to prevent moisture from entering into the clearance between shell body 10 and the interior shell body 20 from the gap between threading pipe 221 and threading hole 122.
[ advantageous effects of the embodiments ]
The present invention has the advantages that water drops or other pollutants can be blown away from the lens 31 of the camera module 30 by the airflow discharged from the airflow outlet 13, and the lens 31 of the camera module 30 is prevented from being shielded by the water drops or the pollutants, so that a good protection effect can be achieved, the normal operation of the camera module 30 can be maintained under a severe environment condition, and the resolution can be improved.
The disclosure is only a preferred embodiment of the invention and should not be taken as limiting the scope of the invention, so that the invention is not limited by the disclosure of the specification and drawings. In other words, the present invention is not limited to the protection of the camera module, nor to the structure of the embodiments disclosed in the specification and drawings, and any application of the technology equivalent to the airflow channel and airflow isolation technology of the present invention to the protection of electronic components is included in the scope of the present invention.
Claims (7)
1. The utility model provides a dustproof rain-proof protective structure of camera module which characterized in that includes:
the front end of the outer shell is provided with an airflow inlet, the front end of the outer shell is provided with an airflow outlet, and the centers of the airflow inlet and the airflow outlet are aligned with the central axis; and
the inner shell is accommodated in the outer shell, an accommodating space is formed in the inner shell and is used for accommodating a camera module, an opening is formed in the front end of the inner shell, the center of the opening is aligned to the airflow outlet, and a lens of the camera module is accommodated in the opening, so that the lens can capture images through the airflow outlet;
the diameter of the outer side wall of the inner shell is smaller than that of the inner side wall of the outer shell, and an air flow channel is defined between the outer side wall of the inner shell and the inner side wall of the outer shell and is communicated with the air flow inlet and the air flow outlet, and air can enter the air flow channel through the air flow inlet and is discharged to the outer side of the outer shell from the air flow outlet;
the rear end of the inner shell forms an arc-shaped rear end face, the front end of the inner shell forms a front end face, and the outer side wall of the inner shell between the rear end face and the front end face forms a side arc-shaped face; the rear end of the inner side wall of the outer shell forms a rear concave surface matched with the rear end surface, the part of the inner side wall of the outer shell corresponding to the side arc-shaped surface forms an arc-shaped side wall, the front end of the inner side wall of the outer shell forms a front side wall adjacent to the front end surface, the front side wall and the front end surface jointly define an outlet part forming the airflow channel, and the front end surface and the front side wall are perpendicular to the central axis, so that the outlet part of the airflow channel is perpendicular to the central axis;
thus, the air exhausted from the air flow outlet can form an air curtain covering the front side surface of the lens.
2. The camera module of claim 1, wherein the inner housing is provided with a support ring surrounding an outer side wall of the inner housing, and the outer side wall of the support ring contacts an inner side wall of the outer housing, the inner side wall of the support ring has a larger diameter than the outer side wall of the inner housing, and a plurality of ribs are provided between the inner side wall of the support ring and the outer side wall of the inner housing.
3. The camera module of claim 2, wherein the outer housing has a front housing and a rear housing, the front end of the rear housing has a connecting portion, the rear end of the front housing has a locking portion, and the locking portion and the connecting portion can be connected to each other, so that the front housing and the rear housing are relatively connected together to form the outer housing.
4. The camera module dustproof and rainproof protection structure according to claim 3, wherein the outer side wall diameter of the clamping portion of the front housing is matched with the inner side wall diameter of the sleeve portion, so that the clamping portion can be sleeved on the inner side wall of the sleeve portion, and the outer side wall of the clamping portion and the inner side wall of the sleeve portion are respectively provided with a flange and a clamping groove which can be clamped with each other, so that the clamping portion and the sleeve portion can be clamped and positioned with each other.
5. The camera module dust-and-rain protection structure of claim 1, wherein the cross-sectional area of the outlet portion of the air flow passage is smaller than the cross-sectional area of the inlet end and the middle portion of the air flow passage.
6. The dustproof and rainproof structure of the camera module according to claim 1, wherein a threading hole is formed in the rear side of the outer shell, a threading pipe is arranged in a position, corresponding to the threading hole, of the rear side of the inner shell, the tail end of the threading pipe is connected with the threading hole, and a cable of the camera module is connected with the camera module through the threading hole and the threading pipe penetrating into the inner shell and connected with the camera module.
7. The camera module dust-proof and rain-proof structure of claim 6, wherein the end of the threading tube and the threading hole are tightly fitted to form a sealed state.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW108133415A TWI741369B (en) | 2019-09-17 | 2019-09-17 | Protection structure for camera module |
| TW108133415 | 2019-09-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112532825A CN112532825A (en) | 2021-03-19 |
| CN112532825B true CN112532825B (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010960170.XA Active CN112532825B (en) | 2019-09-17 | 2020-09-14 | Dustproof and rainproof protection structure of camera module |
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| CN (1) | CN112532825B (en) |
| TW (1) | TWI741369B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113375086A (en) * | 2021-06-25 | 2021-09-10 | 陈伟文 | LED lighting device |
| CN113472986B (en) * | 2021-06-29 | 2023-04-18 | 江西晶浩光学有限公司 | Camera module and electronic equipment |
| TWI803402B (en) * | 2022-07-28 | 2023-05-21 | 劉哲安 | Embedded electronics that eliminate obscuration |
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| CN1554962A (en) * | 2003-12-27 | 2004-12-15 | 大连理工大学 | Optical lens protective device |
| CN202488555U (en) * | 2012-01-12 | 2012-10-10 | 宝山钢铁股份有限公司 | Self-cleaning protection sleeve of industrial monitoring camera |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI741369B (en) | 2021-10-01 |
| CN112532825A (en) | 2021-03-19 |
| TW202113450A (en) | 2021-04-01 |
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