CN208902682U - Nitrogen oxide sensor with waterproof ventilated membrane - Google Patents
Nitrogen oxide sensor with waterproof ventilated membrane Download PDFInfo
- Publication number
- CN208902682U CN208902682U CN201821380318.7U CN201821380318U CN208902682U CN 208902682 U CN208902682 U CN 208902682U CN 201821380318 U CN201821380318 U CN 201821380318U CN 208902682 U CN208902682 U CN 208902682U
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- China
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- ventilated membrane
- waterproof ventilated
- extension
- nitrogen oxide
- protection cap
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Abstract
The utility model provides a kind of nitrogen oxide sensor with waterproof ventilated membrane comprising shell, fixed to the waterproof ventilated membrane and protection cap on shell.The shell is equipped with air hole, the first annular lug boss around air hole, the second annular relief around first annular lug boss, and second annular relief is equipped at least one notch.The waterproof ventilated membrane is sealingly secured to first annular lug boss, and the protection cap is fixed to the second annular relief.The protection cap is equipped with the first extension, and first extension and notch cooperate to form the gap that supplied gas passes through.The nitrogen oxide sensor structure with waterproof ventilated membrane of the utility model is tightly beaten, and by the way that waterproof ventilated membrane is arranged, can make the internal and external pressure balance of shell.Meanwhile waterproof ventilated membrane is also not easy by pollutant (the dust or greasy dirt) blocking in environment.
Description
Technical field
The utility model relates to a kind of nitrogen oxide sensor, especially a kind of nitrogen oxide sensor with waterproof ventilated membrane.
Background technique
In the prior art, NOx sensor causes the pressure of internal gas in client operation because of temperature change
Strong variation.The pressure change be by custom connector inside venthole equilibrium air pressure change.Nitrogen oxide sensor includes shell
Body and the electronic component for being located at enclosure interior.
This mode the problem is that, if custom connector and harness sealing performance are bad, may cause to sense
Device water inlet, and then lead to nitrogen oxide sensor loss of function.Meanwhile the variation of the pressure with enclosure interior, production may be reduced
The durability of product.
Utility model content
The purpose of the utility model is to provide a kind of nitrogen oxide sensors with waterproof ventilated membrane.
One aspect according to the present utility model provides a kind of nitrogen oxide sensor with waterproof ventilated membrane comprising shell
Body, the first ring for being equipped with air hole fixed to the waterproof ventilated membrane and protection cap on shell, the shell, surrounding air hole
Shape lug boss, the second annular relief around first annular lug boss, second annular relief are lacked equipped at least one
Mouthful, the waterproof ventilated membrane is sealingly secured to first annular lug boss, and the protection cap is fixed to the second annular relief, institute
Protection cap is stated to cooperate equipped with the first extension, first extension and notch to form the gap that supplied gas passes through.
Preferably, the protection cap is additionally provided at least a pair of of positioning column, and the both ends cooperation of the positioning column and notch is to rise
To the effect of positioning, first extending part is in the outside of positioning column, when protection cap and the second annular relief are fixed on one
When rising, first extending part is in the outside of notch.
Preferably, the protection cap is additionally provided with through-hole, and the through-hole is located at the outside of the second annular relief.
Preferably, the through-hole is cone, and the diameter that the through-hole is located at interior survey is greater than the diameter positioned at outside.
Preferably, the protection cap is additionally provided with the second arc-shaped extension on the outside of through-hole, and described second extends
Spacing is equipped between portion and the first extension.
Preferably, the first extension and the second extension are respectively positioned on the edge of protection cap.
Preferably, the end face of the positioning column is contacted with the surface of shell, first extension, the second extension with
Shell does not contact.
Preferably, the waterproof ventilated membrane is fixed to first annular lug boss, the protection by way of ultrasonic welding
Lid is fixed to the second annular relief by way of ultrasonic welding.
Preferably, second annular relief is uniformly divided into four by notch.
Preferably, the first annular lug boss is circle, and second annular relief is and first annular lug boss
The circle of concentric.
Nitrogen oxide sensor provided by the utility model can make the external and internal pressure of shell flat by setting waterproof ventilated membrane
Weighing apparatus.Meanwhile structure is tightly beaten, waterproof ventilated membrane is also not easy by pollutant (the dust or greasy dirt) blocking in environment.
Detailed description of the invention
Fig. 1 is the perspective view of the nitrogen oxide sensor of the utility model.
Fig. 2 is the stereogram exploded view of the part of the nitrogen oxide sensor of the utility model.
Fig. 3 is the enlarged drawing in Fig. 2 at " A ".
Fig. 4 is the perspective view of protection cap.
Specific embodiment
Referring to shown in Fig. 1 to Fig. 2, the utility model provides a kind of nitrogen oxide sensor 100 with waterproof ventilated membrane, packet
Include shell 3, fixed to the waterproof ventilated membrane 1 and protection cap 2 on shell 3.Shell 3 is equipped with fixed part 36, harness interconnecting piece 37
And interface 38.
With further reference to shown in Fig. 3 and Fig. 4, shell 3 is equipped with air hole 31, the first annular protrusion around air hole 31
Portion 32, the second annular relief 33 around first annular lug boss 32.Second annular relief 33 is equipped at least one notch
34.Waterproof ventilated membrane 1 is sealingly secured to first annular lug boss 32, and protection cap 2 is fixed to the second annular relief 33.Protection
Lid 2 is equipped with the first extension 22, and the first extension 22 cooperates with notch 34 to form the gap that supplied gas passes through.The utility model
By the way that protection cap 2 is arranged in the outside of waterproof ventilated membrane 1, can directly be touched to avoid external component and waterproof ventilated membrane 1 and
Damage waterproof ventilated membrane 1.When pressure inside shell 3 changes, pass through waterproof ventilated membrane 1 and protection cap 2 and shell 3
Between the adjustable shell 3 in gap inside and external pressure balance, avoid pressure change and damage the mechanicalness of shell 3
Energy.Waterproof ventilated membrane 1 also can avoid the electric property that water enters the inside of shell 3 and damages the electronic component inside shell 3.This
The technical staff in field can according to need, by the especially small of the gap setting between the first extension 22 and notch 32, to subtract
The pollutants such as small dust enter the probability in space between waterproof ventilated membrane 1 and protection cap 2 by gap.
Waterproof ventilated membrane 1 is fixed to first annular lug boss 32 by way of ultrasonic welding, and protection cap 2 passes through ultrasonic bond
The mode connect is fixed to the second annular relief 33.By way of ultrasonic welding, so that waterproof ventilated membrane 1 and first annular convex
It plays portion 32 to be secured together, protection cap 2 and the second annular relief 33 are secured together.
Protection cap 2 is additionally provided at least a pair of of positioning column 21.The both ends of positioning column 21 and notch 34 cooperate to play positioning
Effect.First extension 22 is located at the outside of positioning column 21, when protection cap 2 and the second annular relief 33 are fixed together
It waits, the first extension 22 is located at the outside of notch 34.Preferably, notch 34 is four.Second annular relief 33 is by notch 34
It is uniformly divided into four.Positioning column 21 has four pairs.In the present embodiment, since the structure of the positioning column 21 of every a pair is homogeneous
Together, for simplicity a pair of of positioning column 21 of description.In other embodiments, every a pair of of positioning column 21 can also basis
Design needs to be set as different structures.Every a pair of positioning column 21 includes the first positioning column 211 and the second positioning column 212.First
The both ends of the surface of positioning column 211, the second positioning column 212 and notch 34 cooperate, and can play the role of positioning in the circumferential.
Protection cap 2 is additionally provided with through-hole 23, and through-hole 23 is located at the outside of the second annular relief 33.Protection cap 2 is additionally provided with position
The second arc-shaped extension 24 in 23 outside of through-hole.Spacing 25 is equipped between second extension 24 and the first extension 22.
At work, gas in shell 3 can be by gap between air hole 31, protection cap 2 and shell 3, logical for nitrogen oxide sensor 100
Hole 23 and extraneous progress gas exchanges, so that pressure and extraneous balance in shell 3.Meanwhile waterproof ventilated membrane 1 can also be with
Water is avoided to enter inside shell 3.
Through-hole 23 is cone, and the diameter that through-hole 23 is located at interior survey is greater than the diameter positioned at outside.When water enters protection cap 2
Inner space when, water can be flowed out by through-hole 23.
First extension 22 and the second extension 24 are respectively positioned on the edge of protection cap 2.Second extension 24 can rise
To the effect of reinforcing rib, while the probability that the pollutants such as dust enter 2 inner space of protection cap can also be reduced.
The end face of positioning column 21 is contacted with the surface of shell 3, the first extension 22, the second extension 24 with shell 3 not
Contact.By the setting, it may make and generate gap between the first extension 22,24 army of the second extension and shell 3, in this way, gas
Body can be transmitted by the gap.
First annular lug boss 32 is circle, and second annular relief 33 is and first annular 32 concentric of lug boss
Circle.
Those skilled in the art can be obvious, can the above exemplary embodiments of the utility model be carry out various modifications and be become
Spirit and scope of the type without departing from the utility model.Accordingly, it is intended to which the utility model covering is made to fall in the appended claims
And its modifications and variations to the utility model within the scope of equivalent arrangements.
Claims (10)
1. a kind of nitrogen oxide sensor with waterproof ventilated membrane comprising shell (3), the waterproof and breathable being fixed on shell (3)
Film (1) and protection cap (2), it is characterised in that: the shell (3) is equipped with air hole (31), around the of air hole (31)
One annular relief (32), the second annular relief (33) around first annular lug boss (32), second annular protrusion
Portion (33) is equipped at least one notch (34), and the waterproof ventilated membrane (1) is sealingly secured to first annular lug boss (32), institute
Protection cap (2) are stated fixed to the second annular relief (33), the protection cap (2) is equipped with the first extension (22), and described first
Extension (22) and notch (34) cooperate to form the gap that supplied gas passes through.
2. having the nitrogen oxide sensor of waterproof ventilated membrane as described in claim 1, which is characterized in that the protection cap (2) is also
Equipped at least a pair of of positioning column (21), the both ends of the positioning column (21) and notch (34) cooperate to play the role of positioning, institute
The outside that the first extension (22) is located at positioning column (21) is stated, when protection cap (2) and the second annular relief (33) are fixed on one
When rising, first extension (22) is located at the outside of notch (34).
3. having the nitrogen oxide sensor of waterproof ventilated membrane as claimed in claim 2, which is characterized in that the protection cap (2) is also
Equipped with through-hole (23), the through-hole (23) is located at the outside of the second annular relief (33).
4. having the nitrogen oxide sensor of waterproof ventilated membrane as claimed in claim 3, which is characterized in that the through-hole (23) is circle
Taper, the diameter that the through-hole (23) is located at interior survey are greater than the diameter positioned at outside.
5. having the nitrogen oxide sensor of waterproof ventilated membrane as claimed in claim 3, which is characterized in that the protection cap (2) is also
Equipped with arc-shaped the second extension (24) being located on the outside of through-hole (23), second extension (24) and the first extension
(22) spacing (25) are equipped between.
6. as claimed in claim 5 have waterproof ventilated membrane nitrogen oxide sensor, which is characterized in that the first extension (22) with
And second extension (24) be respectively positioned on the edges of protection cap (2).
7. having the nitrogen oxide sensor of waterproof ventilated membrane as claimed in claim 5, which is characterized in that the positioning column (21)
End face is contacted with the surface of shell (3), and first extension (22), the second extension (24) are not contacted with shell (3).
8. the nitrogen oxide sensor as described in any one of claim 1 to 7 with waterproof ventilated membrane, which is characterized in that described anti-
Water ventilated membrane (1) is fixed to first annular lug boss (32) by way of ultrasonic welding, and the protection cap (2) passes through ultrasonic bond
The mode connect is fixed to the second annular relief (33).
9. the nitrogen oxide sensor as described in any one of claim 1 to 7 with waterproof ventilated membrane, which is characterized in that described
Second ring lug boss (33) is uniformly divided into four by notch (34).
10. the nitrogen oxide sensor as described in any one of claim 1 to 7 with waterproof ventilated membrane, which is characterized in that described
One annular relief (32) is circle, and second annular relief (33) is the circle with first annular lug boss (32) concentric
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380318.7U CN208902682U (en) | 2018-08-24 | 2018-08-24 | Nitrogen oxide sensor with waterproof ventilated membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821380318.7U CN208902682U (en) | 2018-08-24 | 2018-08-24 | Nitrogen oxide sensor with waterproof ventilated membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208902682U true CN208902682U (en) | 2019-05-24 |
Family
ID=66570391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821380318.7U Active CN208902682U (en) | 2018-08-24 | 2018-08-24 | Nitrogen oxide sensor with waterproof ventilated membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208902682U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446139A (en) * | 2019-08-20 | 2019-11-12 | 歌尔股份有限公司 | Acoustic apparatus and electronic equipment |
| WO2023213240A1 (en) * | 2022-05-01 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Waterproof and air-permeable structure and charging device |
-
2018
- 2018-08-24 CN CN201821380318.7U patent/CN208902682U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446139A (en) * | 2019-08-20 | 2019-11-12 | 歌尔股份有限公司 | Acoustic apparatus and electronic equipment |
| CN110446139B (en) * | 2019-08-20 | 2022-03-15 | 歌尔股份有限公司 | Acoustic device and electronic apparatus |
| US11910139B2 (en) | 2019-08-20 | 2024-02-20 | Goertek Inc. | Acoustic device and electronic apparatus |
| WO2023213240A1 (en) * | 2022-05-01 | 2023-11-09 | 长春捷翼汽车科技股份有限公司 | Waterproof and air-permeable structure and charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200113 Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: Shibeite automotive electronics (Changchun) Co., Ltd. Address before: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee before: Continental Automotive Electronics (Changchun) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: WeiPai automotive electronics (Changchun) Co., Ltd Address before: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee before: Shibeite automotive electronics (Changchun) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |