CN109375332B - Multiple seal structure of on-vehicle camera lens - Google Patents
Multiple seal structure of on-vehicle camera lens Download PDFInfo
- Publication number
- CN109375332B CN109375332B CN201811493324.8A CN201811493324A CN109375332B CN 109375332 B CN109375332 B CN 109375332B CN 201811493324 A CN201811493324 A CN 201811493324A CN 109375332 B CN109375332 B CN 109375332B
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- CN
- China
- Prior art keywords
- lens
- ring
- wall
- groove
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 96
- 230000007704 transition Effects 0.000 claims description 47
- 239000003292 glue Substances 0.000 claims description 39
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000007774 longterm Effects 0.000 abstract description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
Abstract
The invention provides a multiple sealing structure of a vehicle-mounted lens, which ensures that the sealing of the whole lens is long-term and effective, and ensures the long-term effective and reliable use of the lens. The front end positioning surface of the rear lens plate is attached to the radial inner ring of the rear end ring surface of the front lens plate, the radial outer ring side of the rear end ring surface is protruded to the surface area of the outer ring periphery of the rear lens plate, and the outer ring sealing part of the front lens plate is protruded to the outer ring periphery of the rear lens plate at the corresponding position, and the front lens plate is characterized in that: the outer ring sealing part of the front lens sheet comprises a front end concave arc-shaped groove, a middle side convex stop ring and a rear part concave sealing ring groove, a side convex arc-shaped locking hook is arranged at the position of the inner wall of the lens barrel corresponding to the front end concave arc-shaped groove, a concave stop groove is arranged at the position of the inner wall of the lens barrel corresponding to the middle side convex stop ring, and a sealing ring outer wall stop edge is arranged at the position of the inner wall of the lens barrel corresponding to the rear part concave sealing ring groove.
Description
Technical Field
The invention relates to the technical field of lens positioning, in particular to a vehicle-mounted lens multiple sealing structure.
Background
The waterproof structure of the existing vehicle-mounted lens is characterized in that a sealing ring is arranged between a front lens sheet and a lens barrel, the bottom of the front lens sheet is pressed with the sealing ring, and the sealing waterproof effect is achieved through expansion of the sealing ring. Because the sealing ring is made of rubber, the sealing ring is easy to age in characteristic, and the permanent resilience of the sealing ring can be poor after long-time compression. Under the abominable circumstances of environment, the sealing washer receives external environment's influence easily, leads to the sealing washer to warp, and hardness decline to make the effect of sealing washer inefficacy, steam can get into inside the camera lens, and then influences the performance of on-vehicle camera lens. The front lens is currently fixed by plastic hot riveting. The front lens hot riveting position is designed into a right angle or bevel angle mode, and the structural strength of the traditional hot riveting lens design mode can only meet the structural requirement in a certain time because the sealing ring rebounds at the bottom, and the hot riveting position can be expanded by water absorption of the plastic lens barrel because of the rebound force of the sealing ring in long-time use of the lens. The front lens is loosened and shifted to influence the compression amount of the sealing ring, so that the effect of the sealing ring is invalid to influence the performance of the lens.
Disclosure of Invention
In view of the above problems, the present invention provides a multiple sealing structure for a vehicle-mounted lens, which makes the sealing of the entire lens long-term effective and reliable use of the lens ensured.
The utility model provides a multiple seal structure of on-vehicle camera lens, its technical scheme is that it includes lens cone, preceding lens piece, back lens piece, sealing washer, the front end locating surface of back lens piece pastes the radial inner circle arrangement of the rear end anchor ring of preceding lens piece, the radial outer lane side of rear end anchor ring is protruding in the face territory arrangement of the outer loop week of back lens piece, the outer loop seal part side of preceding lens piece is protruding in the outer loop week of back lens piece of corresponding position, its characterized in that: the outer ring sealing part of front lens piece includes front end indent arc wall, middle part side protruding stop ring, rear portion indent sealing washer groove, the inner wall of lens cone corresponds front end indent arc wall department is provided with side protruding arc locking and colludes, the inner wall of lens cone corresponds middle part side protruding stop ring department is provided with indent stop groove, the inner wall of lens cone corresponds rear portion indent sealing washer groove's position is provided with sealing washer outer wall stop limit, the sealing washer is located in the rear portion indent sealing washer groove, at least part of the outer wall of sealing washer hugs closely sealing washer outer wall stop limit, at least part of the inner wall of sealing washer hugs closely the side wall of rear portion indent sealing washer groove is arranged, the sealing washer is radial pressure and attaches the sealing washer, middle part side protruding stop ring cooperation plug dress in indent stop groove, side protruding arc locking collude the hot fixedly connected in front end indent arc wall, the inner wall of side protruding arc locking hugs closely the outer wall that front end indent was arranged.
It is further characterized by:
the front end concave arc-shaped groove is provided with a concave R angle, and the numerical value of the concave R angle is 0.3 mm-0.5 mm;
the front end of the sealing ring in the thickness direction is propped against the front end face of the rear concave sealing groove, the inner wall of the lens barrel is provided with a stop end face corresponding to the rear end of the sealing ring in the thickness direction, the rear end of the sealing ring in the thickness direction is propped against the stop end face, a first adhesive slot is formed in the radial inner side of the stop end face towards the radial outer ring part of the rear end ring face of the front lens sheet, glue is filled in the first adhesive slot, and the glue is adhered to the rear end ring face of the front lens sheet and the lens barrel;
a second glue overflow groove is formed in the position, corresponding to the rear end annular surface of the front lens sheet and the outer annular periphery of the rear lens sheet, of the lens barrel, the first glue overflow groove is communicated with the second glue overflow groove through a gap, the second glue overflow groove receives glue overflow of the first glue overflow groove through the gap, and glue filled in the second glue overflow groove and the gap is used for bonding the lens barrel, the front lens sheet and the rear lens sheet;
the stop edge of the outer wall of the sealing ring is in a step structure protruding inwards, and the thickness of the inward protruding step structure is 50% -70% of the radial compression amount of the sealing ring;
the step structure sequentially comprises an inclined outward expansion edge, a first transition arc and a second transition arc from back to front, wherein the tail end of the inclined outward expansion edge is connected with the starting end of the first transition arc, the tail end of the first transition arc is connected with the starting end of the second transition arc, and the tail end of the second transition arc is connected with the starting end of the end wall of the inward concave stop groove, so that the convenience and reliability in side pressure installation of the sealing ring are ensured;
the first transition arc is a radial inward convex transition arc, the second transition arc is a radial outward convex transition arc, and the connection point of the first transition arc and the second transition arc has no obvious sharp angle and is smooth transition;
the inclination of the inclined outward expansion edge relative to the central axis of the lens is 0.5-2 degrees;
the radii R of the first transition arc and the second transition arc are the same, and the value of R is 0.3 mm-0.5 mm.
After the invention is adopted, the original bottom pressing pair of the sealing ring is changed into the side pressing pair, the sealing ring is a radial pressing sealing ring, the influence of rebound of the sealing ring on the front lens sheet is reduced, and the right angle or oblique angle originally designed at the position of the hot-riveted lens is changed into an arc shape, so that the problems of insufficient strength and hot-riveting in place due to the hot-riveting position can be effectively avoided; the sealing of the whole lens is long-term effective, and long-term effective and reliable use of the lens is ensured.
Drawings
FIG. 1 is a schematic view in partial cross-section of an assembled structure of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure at A in FIG. 1;
FIG. 3 is a schematic view of a partial enlarged structure at B in FIG. 1;
the names corresponding to the serial numbers in the figures are as follows:
the lens barrel 1, the side convex arc locking hook 11, the concave stop groove 12, the sealing ring outer wall stop edge 13, the inclined outward expansion edge 131, the first transition arc 132, the second transition arc 133, the stop end face 14, the first glue dispensing groove 15, the glue 16, the second glue dispensing groove 17, the gap 18, the front lens sheet 2, the rear end ring face 21, the outer ring sealing part 22, the front end concave arc groove 221, the middle side convex stop ring 222, the rear concave sealing ring groove 223, the front end face 2231, the rear lens sheet 3, the front end positioning face 31, the outer ring periphery 32 and the sealing ring 4.
Detailed Description
A multiple sealing structure of a vehicle-mounted lens is shown in fig. 1-3: the front lens barrel comprises a lens barrel 1, a front lens sheet 2, a rear lens sheet 3 and a sealing ring 4, wherein a front end positioning surface 31 of the rear lens sheet 3 is attached to a radial inner ring of a rear end annular surface 21 of the front lens sheet 2, a radial outer ring side of the rear end annular surface 21 is arranged in a surface area of an outer ring circumference 32 of the rear lens sheet 3, an outer ring sealing part 22 side of the front lens sheet 2 is protruded at a corresponding position of the outer ring circumference 32 of the rear lens sheet 3, the outer ring sealing part 22 of the front lens sheet 2 comprises a front end inner concave arc-shaped groove 221, a middle side convex stop ring 222 and a rear end inner concave sealing ring groove 223, a side convex arc-shaped locking hook 11 is arranged at the position of the inner wall of the lens barrel 1 corresponding to the front end inner concave arc-shaped groove 221, an inner concave stop groove 12 is arranged at the position of the inner wall of the lens barrel 1 corresponding to the middle side convex stop ring 222, the inner wall of the lens barrel 1 is provided with a sealing ring outer wall stop edge 13 corresponding to the rear inner concave stop groove 223, the sealing ring 4 is located in the rear concave stop groove, at least one part of the outer ring wall of the sealing ring 4 is abutted against the sealing ring stop edge 13 of the outer ring wall of the corresponding position, at least one part of the inner ring wall of the sealing ring 4 is abutted against the inner ring stop groove 223 is abutted against the inner side of the inner arc-shaped groove 11, and the inner side of the inner ring stop groove is abutted against the inner side of the inner arc-shaped groove 11 is matched with the front end concave arc-shaped stop groove 11, and the inner side of the inner concave stop groove is abutted with the inner groove is abutted against the inner side of the inner concave arc-shaped groove 11.
The front end concave arc groove 221 is provided with a concave R angle, and the numerical value of the concave R angle is 0.3 mm-0.5 mm;
the front end of the sealing ring 4 in the thickness direction is propped against the front end face 2231 of the rear concave sealing groove 223, a stop end face 14 is arranged on the inner wall of the lens barrel 1 corresponding to the rear end of the sealing ring 4 in the thickness direction, the rear end of the sealing ring 4 in the thickness direction is propped against the stop end face 14, a first adhesive dispensing groove 15 is arranged on the radial inner side of the stop end face 14 towards the radial outer ring part of the rear end ring surface 21 of the front lens sheet 2, glue 16 is filled in the first adhesive dispensing groove 15, and the glue 16 is adhered to the rear end ring surface 21 of the front lens sheet 2 and the lens barrel 1;
a second glue overflow groove 17 is arranged at the position of the lens cone 1 corresponding to the rear end ring surface 21 of the front lens plate 2 and the outer ring periphery 32 of the rear lens plate 3, the first glue overflow groove 15 is communicated with the second glue overflow groove 17 through a gap 18, the second glue overflow groove 17 receives the glue overflow of the first glue overflow groove 15 through the gap 18, and the glue 16 filled in the second glue overflow groove 17 and the gap 18 is used for bonding the lens cone 1, the front lens plate 2 and the rear lens plate 3;
the stop edge 13 of the outer wall of the sealing ring is in a step structure protruding inwards, and the thickness of the inward protruding step structure is 50% -70% of the radial compression amount of the sealing ring 4;
the step structure sequentially comprises an inclined outward expansion edge 131, a first transition arc 132 and a second transition arc 133 from back to front, wherein the tail end of the inclined outward expansion edge 131 is connected with the starting end of the first transition arc 132, the tail end of the first transition arc 132 is connected with the starting end of the second transition arc 133, and the tail end of the second transition arc 133 is connected with the end wall starting end of the concave stop groove 12, so that the side pressure installation convenience and reliability of the sealing ring 4 are ensured;
the first transition arc 132 is a radially inward convex transition arc, the second transition arc 133 is a radially outward convex transition arc, and the connection point of the first transition arc 132 and the second transition arc 133 has no obvious sharp angle and is smooth transition;
the inclination of the inclined outward expansion edge 131 is 0.5-2 degrees relative to the central axis of the lens; the radii R of the first transition arc 132 and the second transition arc 133 are the same, and the value of R is 0.3 mm-0.5 mm; the above values ensure reliable and convenient side pressure mounting of the sealing ring 4.
The working principle is as follows: the original bottom pressing pair of the sealing ring is changed into the side pressing pair, the sealing ring is a radial pressing sealing ring, the influence of rebound of the sealing ring on the front lens sheet is reduced, and the right angle or the oblique angle originally designed at the position of the hot-riveted lens is changed into an arc shape, so that the problems of insufficient strength and hot-riveting failure at the position of the hot rivet can be effectively avoided; the first glue dispensing groove is designed between the front lens sheet and the lens cone, natural glue is used for filling, the lens cone, the front lens sheet and the rear lens sheet are bonded through glue in the second glue dispensing groove, and the multi-seal structure is adopted, so that water vapor and fog can be effectively prevented from entering the lens from the gap surface of the front lens sheet and the lens cone, and the service life of the lens is prolonged.
The foregoing describes the embodiments of the present invention in detail, but the description is only a preferred embodiment of the invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications made in accordance with the scope of the present invention shall fall within the scope of the present patent.
Claims (9)
1. The utility model provides a multiple seal structure of on-vehicle camera lens, its includes lens cone, preceding lens piece, back lens piece, sealing washer, the front end locating surface of back lens piece pastes and pays the radial inner race arrangement of the back end anchor ring of preceding lens piece, the radial outer lane side of back end anchor ring is protruding in the face territory arrangement of the outer loop week of back lens piece, the outer loop seal part side of preceding lens piece is protruding in the outer loop week of back lens piece of corresponding position, its characterized in that: the outer ring sealing part of front lens piece includes front end indent arc wall, middle part side protruding stop ring, rear portion indent sealing washer groove, the inner wall of lens cone corresponds front end indent arc wall department is provided with side protruding arc locking and colludes, the inner wall of lens cone corresponds middle part side protruding stop ring department is provided with indent stop groove, the inner wall of lens cone corresponds rear portion indent sealing washer groove's position is provided with sealing washer outer wall stop limit, the sealing washer is located in the rear portion indent sealing washer groove, at least part of the outer wall of sealing washer hugs closely sealing washer outer wall stop limit, at least part of the inner wall of sealing washer hugs closely the side wall of rear portion indent sealing washer groove is arranged, the sealing washer is radial pressure and attaches the sealing washer, middle part side protruding stop ring cooperation plug dress in indent stop groove, side protruding arc locking collude the hot fixedly connected in front end indent arc wall, the inner wall of side protruding arc locking hugs closely the outer wall that front end indent was arranged.
2. The on-vehicle lens multiple seal structure of claim 1, wherein: the front end concave arc-shaped groove is provided with a concave R angle, and the numerical value of the concave R angle is 0.3 mm-0.5 mm.
3. The on-vehicle lens multiple seal structure of claim 1, wherein: the front end of the sealing ring in the thickness direction is propped against the front end face of the rear concave sealing groove, the inner wall of the lens barrel is provided with a stop end face corresponding to the rear end of the sealing ring in the thickness direction, the rear end of the sealing ring in the thickness direction is propped against the stop end face, the radial inner side of the stop end face faces the radial outer ring part of the rear end ring face of the front lens sheet, a first glue slot is formed in the radial outer ring part of the rear end ring face of the front lens sheet, glue is filled in the first glue slot, and the glue is adhered to the rear end ring face of the front lens sheet and the lens barrel.
4. A multiple sealing structure for an in-vehicle lens as claimed in claim 3, wherein: the lens cone is characterized in that a second glue overflow groove is formed in the position, corresponding to the rear end annular surface of the front lens plate and the outer periphery of the rear lens plate, of the lens cone, the first glue overflow groove is communicated with the second glue overflow groove through a gap, the second glue overflow groove receives glue overflow of the first glue overflow groove through a gap, and glue filled in the second glue overflow groove and the gap is adhered to the lens cone, the front lens plate and the rear lens plate.
5. The on-vehicle lens multiple seal structure of claim 1, wherein: the stop edge of the outer wall of the sealing ring is in a step structure protruding inwards, and the thickness of the step structure protruding inwards is 50% -70% of the radial compression amount of the sealing ring.
6. The vehicle-mounted lens multi-sealing structure according to claim 5, wherein: the step structure sequentially comprises an inclined outward expansion edge, a first transition arc and a second transition arc from back to front, wherein the tail end of the inclined outward expansion edge is connected with the starting end of the first transition arc, the tail end of the first transition arc is connected with the starting end of the second transition arc, and the tail end of the second transition arc is connected with the starting end of the end wall of the concave stop groove.
7. The on-vehicle lens multiple seal structure of claim 6, wherein: the first transition arc is a radial inward convex transition arc, the second transition arc is a radial outward convex transition arc, and the connection point of the first transition arc and the second transition arc has no obvious sharp angle and is smooth transition.
8. The on-vehicle lens multiple seal structure of claim 6, wherein: the inclination of the inclined outward expansion edge relative to the central axis of the lens is 0.5-2 degrees.
9. The on-vehicle lens multiple seal structure of claim 6, wherein: the radii R of the first transition arc and the second transition arc are the same, and the value of R is 0.3 mm-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493324.8A CN109375332B (en) | 2018-12-07 | 2018-12-07 | Multiple seal structure of on-vehicle camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811493324.8A CN109375332B (en) | 2018-12-07 | 2018-12-07 | Multiple seal structure of on-vehicle camera lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109375332A CN109375332A (en) | 2019-02-22 |
| CN109375332B true CN109375332B (en) | 2024-03-29 |
Family
ID=65376185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811493324.8A Active CN109375332B (en) | 2018-12-07 | 2018-12-07 | Multiple seal structure of on-vehicle camera lens |
Country Status (1)
| Country | Link |
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| CN (1) | CN109375332B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113126229B (en) * | 2021-04-30 | 2024-05-03 | 维沃移动通信有限公司 | Lens module and electronic equipment |
| CN115248489A (en) * | 2022-04-20 | 2022-10-28 | 江西联创电子有限公司 | Waterproof antifogging lens and assembling method thereof |
| CN115047580A (en) * | 2022-05-16 | 2022-09-13 | 浙江舜宇智领技术有限公司 | Imaging lens |
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| CN109375332A (en) | 2019-02-22 |
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