CN109269683A - A kind of sealing structure of pressure sensor - Google Patents
A kind of sealing structure of pressure sensor Download PDFInfo
- Publication number
- CN109269683A CN109269683A CN201811283257.7A CN201811283257A CN109269683A CN 109269683 A CN109269683 A CN 109269683A CN 201811283257 A CN201811283257 A CN 201811283257A CN 109269683 A CN109269683 A CN 109269683A
- Authority
- CN
- China
- Prior art keywords
- sensing element
- shell
- terminal
- sensor
- step structure
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
Abstract
The invention proposes a kind of sealing structures of pressure sensor, shell including sensor, and the terminal that lower end insertion housing tip is open and is coupled, sensing element is installed in the shell, O-ring seal is equipped between the sensing element lower end and shell, the housing tip opening inner wall is equipped with a circle step structure, the terminal lower end is on step structure and the thickness of terminal lower end is greater than the width of step structure, guarantee that terminal lower end a part is in above step structure, another part is in above sensing element and compresses sensing element.The interior design of this structure housing has step, it can guarantee that shell O-ring seal when pressing is compressed in the reasonable scope, it is limited simultaneously by casing step and guarantees that sensing element will not be subject to crushing, cancel the pressure ring on original pressure sensor, the production efficiency of sensor can be effectively improved, the volume that sensor can be reduced simultaneously, reduces the cost of sensor.
Description
Technical field
The present invention relates to a kind of sealing structures of pressure sensor.
Background technique
Come currently, the sealing means used on pressure sensor mainly use pressure ring and shell to be interference fitted compresses seal
Guarantee the sealing of interiors of products.The volume that such sealing means causes stress sensor is larger, higher cost, in pressure sensor
Under volume is smaller and smaller and the light-weighted requirement of vehicle, competitiveness is lost.
Summary of the invention
The present invention proposes a kind of sealing structure of pressure sensor, and structure is simple, assembly is simple, long product lifecycle
With functional reliability height, terminal directly presses sensing element, eliminates pressure ring, can effectively reduce the inner space of sensor,
Mitigate the weight of sensor.
The technical scheme of the present invention is realized as follows:
A kind of sealing structure of pressure sensor, shell 1 and lower end insertion housing tip opening including sensor
And the terminal 5 being coupled, sensing element 3 is installed in the shell 1, is set between 3 lower end of sensing element and shell
There is O-ring seal 2, the 1 top end opening inner wall of shell is equipped with a circle step structure, and 5 lower end of terminal is in step structure
Upper and terminal lower end thickness is greater than the width of step structure, guarantees that 5 lower end a part of terminal is in above step structure, another
It is partially in 3 top of sensing element and compresses sensing element 3.
Preferably, described to be designed by decrement needed for the thickness of sensing element 3, the specification of O-ring seal 2 and sealing
The height of enclosure interior step guarantees that the O-ring seal 2 when pressing of shell 1 is compressed in the reasonable scope, while passing through shell platform
Rank limit guarantees that sensing element will not be subject to crushing.
The present invention is the beneficial effects are as follows: enclosure interior design has step, it is ensured that shell O-shaped sealing when pressing
Circle compression in the reasonable scope, while being limited by casing step and guaranteeing that sensing element will not be subject to crushing, and is cancelled original pressure and is passed
Pressure ring on sensor can effectively improve the production efficiency of sensor, while can reduce the volume of sensor, reduce sensor at
This.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the step structure schematic diagram of shell.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with the embodiment of the present invention, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
A kind of sealing structure of pressure sensor as shown in Figs. 1-2, shell 1 and lower end insertion including sensor
The terminal 5 that housing tip is open and is coupled installs sensing element 3,3 lower end of sensing element in the shell 1
O-ring seal 2 is equipped between shell, the 1 top end opening inner wall of shell is equipped with a circle step structure, 5 lower end of terminal
On step structure and the thickness of terminal lower end is greater than the width of step structure, guarantees that 5 lower end a part of terminal is in step
Superstructure, another part are in 3 top of sensing element and compress sensing element 3.
Preferably, by the thickness of sensing element 3, O-ring seal 2 specification and sealing needed for decrement design shell
The height of interior step guarantees that the O-ring seal 2 when pressing of shell 1 is compressed in the reasonable scope, while passing through casing step and limiting
Position guarantee sensing element will not be subject to crushing.
The present invention uses and is made of soft wiring board assembly 4, soft wiring board assembly 4 one soft wiring board and patch capacitor
End is welded with terminal 5, and the other end and the input of sensing element 3, output end weld, and can provide reliable source of power to pressure sensor,
Pressure sensor output signal simultaneously.Step is designed inside housings, is directly born against on sensing element by terminal, and O is recompressed
Type sealing ring guarantees sensor sealing, it is ensured that when pressing, in the reasonable scope, step limits shell for O-ring seal compression
Position guarantee sensing element is not subject to crushing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of sealing structure of pressure sensor, shell (1) and lower end insertion housing tip opening including sensor
And the terminal (5) being coupled, sensing element (3) are installed in the shell (1), sensing element (3) lower end and shell
O-ring seal (2) are equipped between body, which is characterized in that shell (1) the top end opening inner wall is equipped with a circle step structure, institute
It states that terminal (5) lower end is on step structure and the thickness of terminal lower end is greater than the width of step structure, guarantees terminal (5) lower end
Above step structure, another part is in above sensing element (3) and compresses sensing element (3) a part.
2. a kind of sealing structure of pressure sensor as described in claim 1, which is characterized in that described to pass through sensing element
(3) height of decrement design enclosure interior step, guarantees shell needed for the specification and sealing of thickness, O-ring seal (2)
(1) when pressing, O-ring seal (2) is compressed in the reasonable scope, while being limited by casing step and being guaranteed that sensing element will not
It is subject to crushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283257.7A CN109269683A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing structure of pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811283257.7A CN109269683A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing structure of pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109269683A true CN109269683A (en) | 2019-01-25 |
Family
ID=65190964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811283257.7A Pending CN109269683A (en) | 2018-10-31 | 2018-10-31 | A kind of sealing structure of pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109269683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993518A (en) * | 2022-05-27 | 2022-09-02 | 东风电驱动系统有限公司 | Pressure sensor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435380A (en) * | 2011-10-28 | 2012-05-02 | 芜湖通和汽车管路系统有限公司 | High-range hydraulic sensor and manufacturing method thereof |
| CN202547855U (en) * | 2012-04-10 | 2012-11-21 | 武汉神动汽车电子电器有限公司 | Ceramic thick film resistor oil pressure sensor based on novel connection |
| CN206450347U (en) * | 2017-01-20 | 2017-08-29 | 任东良 | A kind of encapsulating structure of pressure sensor |
| CN208984251U (en) * | 2018-10-31 | 2019-06-14 | 东风汽车电子有限公司 | A kind of sealing structure of pressure sensor |
-
2018
- 2018-10-31 CN CN201811283257.7A patent/CN109269683A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435380A (en) * | 2011-10-28 | 2012-05-02 | 芜湖通和汽车管路系统有限公司 | High-range hydraulic sensor and manufacturing method thereof |
| CN202547855U (en) * | 2012-04-10 | 2012-11-21 | 武汉神动汽车电子电器有限公司 | Ceramic thick film resistor oil pressure sensor based on novel connection |
| CN206450347U (en) * | 2017-01-20 | 2017-08-29 | 任东良 | A kind of encapsulating structure of pressure sensor |
| CN208984251U (en) * | 2018-10-31 | 2019-06-14 | 东风汽车电子有限公司 | A kind of sealing structure of pressure sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114993518A (en) * | 2022-05-27 | 2022-09-02 | 东风电驱动系统有限公司 | Pressure sensor |
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