CN109425850A - A kind of seal assembly of millimetre-wave radar - Google Patents
A kind of seal assembly of millimetre-wave radar Download PDFInfo
- Publication number
- CN109425850A CN109425850A CN201711236367.3A CN201711236367A CN109425850A CN 109425850 A CN109425850 A CN 109425850A CN 201711236367 A CN201711236367 A CN 201711236367A CN 109425850 A CN109425850 A CN 109425850A
- Authority
- CN
- China
- Prior art keywords
- shell
- function part
- cavity
- seal assembly
- millimetre
- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/027—Constructional details of housings, e.g. form, type, material or ruggedness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Details Of Aerials (AREA)
Abstract
The present invention provides a kind of seal assembly of millimetre-wave radar, including shell and plug, and shell has cavity and stomata, and cavity extends from the exterior space of shell to the inner space of shell, and stomata is connected to the inner space of cavity and shell；Plug has the function part of sealing and elasticity, function part self-sealing portion starts to extend and is formed as pocket-like, sealing circularizes structure along the opening shape of function part, the waterproof ventilated membrane of at least two Relative distributions is provided on function part, sealing and function part are installed in cavity, sealing is integral with shell fitting, has gap between function part and the inner wall of cavity, and gap is connected to by stomata with the inner space of shell.The present invention can effectively increase the area of waterproof and breathable, while be able to maintain good anti-vibration performance, promote trailer-mounted radar device dustproof and waterproof venting capability.
Description
Technical field
The present invention relates to automobile sensor fields, relate more specifically to a kind of seal assembly of millimetre-wave radar.
Background technique
With the development of the automobile industry, more and more sophisticated technologies start to be assemblied among automobile, and one of which is
Vehicle-mounted millimeter wave radar, and higher and higher to the performance of vehicle-mounted millimeter wave radar, the requirement of degree of protection in practical application, product
Size it is also smaller and smaller therewith, however, one be the problem of can not be ignored interiors of products air pressure temperature increase when
Also it increases with it even excessively high.
Performance is influenced in order to avoid millimetre-wave radar components interior air pressure is excessively high, the technological means generallyd use is to improve
The wherein air penetrability or vapor permeation area of waterproof ventilated membrane.However, band is led to waterproof after the air penetrability raising of waterproof ventilated membrane
Ventilated membrane is easier the problem of by water pressure breakdown, and the vapor permeation area for increasing waterproof ventilated membrane is a Xiang Yan for the size of product
High challenge will greatly increase manufacture difficulty and cost.
Another kind solution in the prior art is to block entire channel by designing mechanical structure, to prevent water flow
Into interiors of products, however service life of the mechanical structure in such method in vehicle-mounted product is often very short.
Summary of the invention
The object of the present invention is to provide a kind of seal assemblies of millimetre-wave radar, to solve vehicle-mounted thunder in the prior art
The problem bad up to device dustproof and waterproof air permeability effect.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide a kind of seal assembly of millimetre-wave radar,
The seal assembly includes: shell, and the shell has cavity and a stomata, and the cavity is from the exterior space of the shell to described
The inner space of shell extends, and the stomata is connected to the inner space of the cavity and the shell；Plug, the plug have
The function part of sealing and elasticity, the function part extend and are formed as pocket-like, the sealing since the sealing
Structure is circularized along the opening shape of the function part, at least two waterproof and breathables of Relative distribution are provided on the function part
Film, the sealing and the function part are installed in the cavity of the shell, and the sealing is integral with shell fitting, institute
Stating has gap between function part and the inner wall of the cavity, the gap passes through the inner space of the stomata and the shell
Connection.
According to one embodiment of present invention, the size of the stomata is less than the size of the cavity on the shell.
According to one embodiment of present invention, which is characterized in that the function part is formed far from the end of the sealing
For spring top, the spring top is aligned with the center line of the stomata, and the size of the spring top is greater than the stomata
Size.
According to one embodiment of present invention, the cavity is formed as flat cavity, and the inner wall of the cavity has
At least two the first opposite planes, the function part are formed as flat pocket-like, and the function part has at least two phases
Pair the second plane, the waterproof ventilated membrane is set in second plane, first plane and second plane it
Between be formed as the gap.
According to one embodiment of present invention, the waterproof ventilated membrane is formed as circle, rectangle, ellipse or trapezoidal.
According to one embodiment of present invention, the inside of the pocket-like of the function part is formed as filling in chamber, and the plug chamber is worn
The sealing is crossed to be connected to the exterior space of the shell.
According to one embodiment of present invention, the plug is intracavitary is provided with from the sealing to the end of the function part
Several reinforcing ribs extended.
According to one embodiment of present invention, the sealing, the function part and the waterproof ventilated membrane are integrally formed.
According to one embodiment of present invention, the width in the gap is between 0.5mm-1mm.
According to one embodiment of present invention, the inner wall of the cavity is formed as flat and smooth surface.
The seal assembly of millimetre-wave radar provided by the invention, the area of waterproof and breathable increase the intensity of one times but structure
It still maintains constant, can effectively increase intensity of the area of waterproof and breathable without changing structure, while the seal assembly is also
It is able to maintain good anti-vibration performance, can effectively promote trailer-mounted radar device dustproof and waterproof venting capability.
Detailed description of the invention
Fig. 1 is the side schematic view of the seal assembly of millimetre-wave radar according to a preferred embodiment of the present invention；
Fig. 2 is the diagrammatic cross-section according to the seal assembly of the millimetre-wave radar of Fig. 1；
Fig. 3 is the structural schematic diagram according to the plug of the seal assembly of the millimetre-wave radar of Fig. 1；
Fig. 4 is the bottom view according to the plug of the seal assembly of the millimetre-wave radar of Fig. 3；
Fig. 5 is the using process diagram according to the seal assembly of the millimetre-wave radar of Fig. 1.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this
The range of invention and is not intended to limit the present invention.
Fig. 1 be according to the side schematic view of the seal assembly of the millimetre-wave radar of a preferred embodiment of the present invention, by
Fig. 1 is it is found that the seal assembly of millimetre-wave radar provided by the invention includes shell 10 and plug 20, and wherein plug 20 is placed in shell
To form sealing cooperation in body 20.
Fig. 2 is according to the diagrammatic cross-section of the seal assembly of the millimetre-wave radar of Fig. 1, and Fig. 3 is the millimeter wave thunder according to Fig. 1
The structural schematic diagram of the plug of the seal assembly reached, by Fig. 2 combination Fig. 3 it is found that the shell 10 in the present invention further comprises chamber
Body 11 and stomata 12, wherein cavity 11 internally (IN) extends from the outside (OUT) of shell 10, and cavity 11 is more specifically formed
There are at least two smooth and opposite the first planes extended, position of the cavity 11 inside shell 10 is directly and in shell 10
For portion's perforation to form stomata 12, the size of stomata 12 is less than the size of cavity 11；Plug 20 in the present invention is formed as pocket-like,
Plug 20 further comprises sealing 21 and function part 22, wherein sealing 21 and function part 22 are integrally formed, sealing 21
Plug chamber 24 is formed between function part 22, sealing 21 is formed as ring structure, and 22 self-sealing portion 21 of function part starts to extend
And form pocket-like, be plug chamber 24 inside the function part 22 of the pocket-like, function part 22 further also tool there are two smooth and
With respect to the second plane extended, it is separately installed with waterproof ventilated membrane 23 in second plane, waterproof ventilated membrane 23 is also preferably
It is integrally formed with function part 22；Function part 22 is formed as spring top 221, spring top after installation far from one end of sealing 21
221 close to stomata 12 but not sealed porosity 12.
Further as shown in Fig. 2, the seal assembly of millimetre-wave radar provided by the invention during installation, the function of plug 20
Portion 22 is placed in completely in the cavity 11 of shell 10, and the close conflict cavity 11 in the periphery of the sealing 21 of plug 20 is close to be formed
Envelope, at this point, the second plane of the function part 22 of plug 20 is parallel to each other with the first plane of cavity 11 substantially, and function part 22 with
Certain gap 111 is reserved between shell 10, the gap 111 along cavity 11 inner wall extend and with stomata 12 and shell 10
Inside connection so that when air pressure shell 10 inside is excessively high, the gas inside shell 10 can lead to along the gap 111
The waterproof ventilated membrane 23 crossed in the second plane is discharged into the plug chamber 24 of plug, since plug chamber 24 is connected to outside, is equivalent to gas
Shell 10 can be expelled directly out.
Fig. 4 be according to the bottom view of the plug 20 of the seal assembly of the millimetre-wave radar of Fig. 3, it is as shown in Figure 4, of the invention
Plug may also include several reinforcing ribs 211, and in the fig. 4 embodiment, the quantity of reinforcing rib 211 is 4, and reinforcing rib 211 is certainly
Sealing 21 extends by function part 22 towards spring top 221, since the area of function part 22 is relatively large and soft, reinforces
Muscle 211 can provide strong support so that it keeps relatively-stationary shape, so that function part 22 for function part 22
Shape keeps stablizing after being installed in cavity 11, avoids the gas passage between blocking waterproof ventilated membrane 23 and stomata 12.
Fig. 5 is according to the using process diagram of the seal assembly of the millimetre-wave radar of Fig. 1, and as shown in Figure 5, the present invention exists
In use, when the external world has fluid pressure to act on seal assembly, after thering is liquid to enter the plug chamber 24 of plug in other words, due to function
Energy portion 22 is that elastomer will deform first, fluid pressure continuous extrusion and is squeezed waterproof ventilated membrane 23 and function part 22 at this time
It is depressed into the inner wall for being close to cavity 11, the gap 111 between cavity 11 and function part 22 disappears at this time, the spring top of function part 22
221 are aligned with the center line of stomata 12, and spring top 221 contradicts stomata 12 and forms sealing, to block the inside and outside of shell 10
Channel；When fluid pressure continues to increase, since waterproof ventilated membrane 23 contradicts the inner wall of cavity 11, the two sides of waterproof ventilated membrane 23
There is no pressure difference can not further deform, the spring top 221 of function part 22 is continued on due to not having support at this time
Stomata 12 is to the internal modification of shell 10, and liquid can not still infiltrate through the inside of shell 10 at this time.When fluid pressure disappears,
As the elastic deformation of function part 22 restores, spring top 221 and waterproof ventilated membrane 23 return back to original position, and gas can be with
Normal through.
In order to reach better seal waterproof effect, the size of cavity 11 be should not be too large, the width in the gap 111 in cavity 11
Degree is preferably between 0.5mm-1mm；Cavity 11 is preferably shaped to smooth mellow and full and smooth shape, and the size of stomata 12 is preferred
Less than the size of spring top 221.It will be apparent to a skilled person that the ruler of cavity 11, stomata 12 and plug 20
Very little and width can also change as needed and suitably, it is not limited to the size in the embodiment of the present invention；The shape of cavity 11
It can be set as needed as other irregular shapes, such as wavy surface or the surface of out-of-flatness, herein only conduct
The protection scope that example is not intended to limit the present invention.
The opposite setting of waterproof ventilated membrane of the invention, the area for being equivalent to waterproof and breathable increase the strong of one times but structure
Degree still maintains constant, and waterproof ventilated membrane is preferably circular shape in homogeneous thickness, and rectangle or ellipse etc. also may be selected
Other shapes, herein only as an example, not a limit.The bearing capacity of waterproof ventilated membrane should be able to preferably bear on unit area 1 meter
Water depth pressure without rupturing, the bearing capacity of function part should be able to preferably bear 3 meters on unit area of water depth pressure without broken
It splits.
The seal assembly of millimetre-wave radar provided by the invention can effectively increase the area of waterproof and breathable without changing
The intensity of structure, while the seal assembly is also able to maintain good anti-vibration performance, can effectively promote trailer-mounted radar device
Dustproof and waterproof venting capability.
Above-described, only presently preferred embodiments of the present invention, the range being not intended to limit the invention, of the invention is upper
Stating embodiment can also make a variety of changes.Made by i.e. all claims applied according to the present invention and description
Simply, equivalent changes and modifications fall within the claims of the invention patent.The not detailed description of the present invention is
Routine techniques content.
Claims (10)
1. a kind of seal assembly of millimetre-wave radar, which is characterized in that the seal assembly includes:
Shell, the shell have cavity and stomata, and the cavity is from the exterior space of the shell to the inside of the shell
Spatially extended, the stomata is connected to the inner space of the cavity and the shell；
Plug, the plug have the function part of sealing and elasticity, and the function part extends since the sealing and shape
As pocket-like, the sealing circularizes structure along the opening shape of the function part, and at least two are provided on the function part
The waterproof ventilated membrane of a Relative distribution, the sealing and the function part are installed in the cavity of the shell, the sealing
Portion is integral with shell fitting, has gap between the function part and the inner wall of the cavity, and the gap passes through the gas
Hole is connected to the inner space of the shell.
2. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the size of the stomata is less than institute
State the size of the cavity on shell.
3. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the function part is far from described close
The end in envelope portion is formed as spring top, and the spring top is aligned with the center line of the stomata, the ruler of the spring top
The very little size greater than the stomata.
4. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the cavity is formed as flat
Cavity, the inner wall of the cavity has at least two the first opposite planes, and the function part is formed as flat pocket-like,
The function part has at least two the second opposite planes, and the waterproof ventilated membrane is set in second plane, described
Be formed as the gap between first plane and second plane.
5. the seal assembly of millimetre-wave radar according to claim 4, which is characterized in that the waterproof ventilated membrane is formed as
Circle, rectangle, ellipse or trapezoidal.
6. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the pocket-like of the function part
Inside is formed as filling in chamber, and the plug chamber passes through the sealing and is connected to the exterior space of the shell.
7. the seal assembly of millimetre-wave radar according to claim 6, which is characterized in that the plug is intracavitary to be provided with from institute
State several reinforcing ribs that sealing extends to the end of the function part.
8. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the sealing, the function
Portion and the waterproof ventilated membrane are integrally formed.
9. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the width in the gap between
Between 0.5mm-1mm.
10. the seal assembly of millimetre-wave radar according to claim 1, which is characterized in that the inner wall of the cavity is formed
For flat and smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236367.3A CN109425850B (en) | 2017-11-30 | 2017-11-30 | Sealing assembly of millimeter wave radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711236367.3A CN109425850B (en) | 2017-11-30 | 2017-11-30 | Sealing assembly of millimeter wave radar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109425850A true CN109425850A (en) | 2019-03-05 |
| CN109425850B CN109425850B (en) | 2023-08-11 |
Family
ID=65514376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711236367.3A Active CN109425850B (en) | 2017-11-30 | 2017-11-30 | Sealing assembly of millimeter wave radar |
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| Country | Link |
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| CN (1) | CN109425850B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021175262A1 (en) * | 2020-03-03 | 2021-09-10 | 华为技术有限公司 | Millimeter wave radar |
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Cited By (1)
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| WO2021175262A1 (en) * | 2020-03-03 | 2021-09-10 | 华为技术有限公司 | Millimeter wave radar |
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|---|---|
| CN109425850B (en) | 2023-08-11 |
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