CN210198629U - Vacuum degree pressure sensor - Google Patents
Vacuum degree pressure sensor Download PDFInfo
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- CN210198629U CN210198629U CN201921143949.1U CN201921143949U CN210198629U CN 210198629 U CN210198629 U CN 210198629U CN 201921143949 U CN201921143949 U CN 201921143949U CN 210198629 U CN210198629 U CN 210198629U
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- pressure sensor
- protective housing
- protective shell
- air inlet
- membrane
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Abstract
The utility model discloses a vacuum pressure sensor, including the inlet air end mouth, the inner wall department fixed mounting of inlet air end mouth has the fixed connection piece, the inside of fixed connection piece has been seted up and has been drawn and press the perforation, the top fixed mounting of inlet air end mouth has first protective housing, first protective housing's outside top swing joint has the second protective housing, the junction fixed mounting in the bottom of second protective housing and the first protective housing outside has the water proof membrane. This vacuum pressure sensor, through drawing the design of pressing the perforation, after this pressure sensor and other thing spare interconnect accomplish, inside gas just can equally divide and the entering air inlet end mouth of filtration formula, improved this pressure sensor measured data's accuracy, waterproofing membrane adopts the combined material of a fluoride, the water-proof effects of improvement this sensor junction that can be fine has avoided moisture to get into the accurate nature that influences the sensor measurement.
Description
Technical Field
The utility model relates to a pressure sensor technical field specifically is a vacuum pressure sensor.
Background
The pressure sensor is a device or device which can sense pressure signals and can convert the pressure signals into usable output electric signals according to a certain rule, is the most common sensor in industrial practice, is widely applied to various industrial self-control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production self-control, aerospace and the like.
However, most of the existing pressure sensors do not have a good waterproof effect, and the sensitivity inside the existing pressure sensors is easily reduced, so that data display is wrong, and the sensing parts inside the general pressure sensors are used for measuring under a normal pressure state, so that external interference cannot be eliminated, and the using effect of the sensors is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum pressure sensor to it does not have good water-proof effects to propose current pressure sensor most in solving above-mentioned background art, causes the reduction of its inside sensitivity easily, thereby leads to data display to have the mistake, and the inside sensing part of general pressure sensor all measures under the ordinary pressure state moreover, can not get rid of some external interferences, makes the problem that the sensor result of use descends.
In order to achieve the above object, the utility model provides a following technical scheme: a vacuum degree pressure sensor comprises an air inlet bottom port, wherein a fixed connecting block is fixedly installed on the inner wall of the air inlet bottom port, a drawing and pressing perforation hole is formed in the fixed connecting block, a first protective shell is fixedly installed on the top end of the air inlet bottom port, a second protective shell is movably connected to the top end of the outer side of the first protective shell, a waterproof diaphragm is fixedly installed at the connecting position of the bottom of the second protective shell and the outer side of the first protective shell, a movable bottom membrane is movably connected to the inner side of the bottom end of the first protective shell, a press rod is movably connected to the outer side of the top end of the movable bottom membrane, a bonding bottom plate is fixedly connected to the top end of the bonding bottom plate, a compensation resistor is fixedly connected to the top end of the compensation resistor, a vacuum chamber is fixedly connected to the top end of the movable bottom membrane, a measuring, the top end of the measuring stay bar sequentially penetrates through the bonding bottom plate and the compensation resistor and extends into the vacuum chamber, a sensing silicon chip is fixedly mounted at the top end of the inside of the vacuum chamber, a pressure conversion element is fixedly connected to the top end of the vacuum chamber, an electric signal conversion control element is fixedly connected to the top end of the inner wall of the first protective shell, and a transmission wire is fixedly mounted on the outer side of the top end of the second protective shell.
Preferably, the pressure-inducing through holes are designed equidistantly, the fixed connecting block is bonded and connected with the inner wall of the air inlet bottom port, and the air inlet bottom port is integrally connected with the first protective shell.
Preferably, the middle section outside of first protective housing is connected for the block each other with the inside of second protective housing, waterproofing membrane is connected for the laminating with the junction of first protective housing and second protective housing.
Preferably, the number of the measuring support rods is five, the five measuring support rods are designed in an equidistant mode, and the measuring support rods are in bonding connection with the surface of the movable bottom film.
Preferably, the number of the pressing rods is four, the pressing rods are in fit connection with the surface of the movable base membrane, and the pressing rods are in elastic connection with the bonding base plate.
Preferably, the sensing silicon chip is electrically connected with the pressure conversion element, the pressure conversion element is electrically connected with the electric signal conversion control element, and the electric signal conversion control element is electrically connected with the transmission wire.
Compared with the prior art, the beneficial effects of the utility model are that: the vacuum degree pressure sensor has the advantages that through the design of the pressure inducing perforation, after the pressure sensor is connected with other objects, gas can equally and filter enter the air inlet bottom opening, the accuracy of the pressure sensor in measuring data is improved, the waterproof diaphragm is made of a fluoride composite material, the waterproof effect of the sensor joint can be well improved, the influence of moisture entering on the accuracy of the sensor in measurement is avoided, a plurality of measuring support rods arranged at equal intervals are different in data in the measuring process, the sensor can integrate data to obtain an average value, the data accuracy effect is better compared with that of the traditional pressure sensor, the practical effect of the sensor is improved, the movable bottom membrane can be fixedly arranged on the pressing rod, the pressing rod can be directly fixed, more movable spaces can be given to the movable bottom membrane in such a mode, and the increase of the range of sensing data is ensured, and the vacuum design of the vacuum chamber can help to reduce the influence of the outside on the inside of the sensor, so that the measurement accuracy of the sensor is improved.
Drawings
FIG. 1 is a side internal connection structure diagram of the present invention;
FIG. 2 is a view of the overall connection structure of the present invention;
FIG. 3 is a top view of the fixing connection block of the present invention;
fig. 4 is a top view of the movable bottom film of the present invention.
In the figure: 1. an air inlet bottom port; 2. fixing a connecting block; 3. pressure guiding and perforating; 4. a first protective housing; 5. a waterproof membrane; 6. a second protective housing; 7. a movable basement membrane; 8. measuring a brace rod; 9. pressing the rods; 10. bonding a base plate; 11. a compensation resistor; 12. a vacuum chamber; 13. a sensing silicon chip; 14. a pressure conversion element; 15. an electric signal conversion control element; 16. and transmitting the electric wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a vacuum degree pressure sensor comprises an air inlet bottom port 1, a fixed connecting block 2 is fixedly installed on the inner wall of the air inlet bottom port 1, a pressure leading through hole 3 is formed in the fixed connecting block 2, a first protective shell 4 is fixedly installed on the top end of the air inlet bottom port 1, a second protective shell 6 is movably connected to the top end of the outer side of the first protective shell 4, a waterproof diaphragm 5 is fixedly installed at the joint of the bottom of the second protective shell 6 and the outer side of the first protective shell 4, a movable bottom membrane 7 is movably connected to the inside of the bottom end of the first protective shell 4, a press-fit rod 9 is movably connected to the outer side of the top end of the movable bottom membrane 7, a bonding bottom plate 10 is fixedly connected to the top end of the press-fit rod 9, a compensation resistor 11 is fixedly connected to the top end of the bonding bottom plate 10, a vacuum chamber 12 is fixedly connected to the top, and in practical use, the diameter of the measuring stay 8 is very small, although the measuring stay 8 passes through the inside of the vacuum chamber 12, in fact, it is difficult to change the vacuum effect inside the vacuum chamber 12, the top end of the measuring stay 8 passes through the inside of the adhesive base plate 10 and the compensation resistor 11 in sequence and extends to the inside of the vacuum chamber 12, the top end inside the vacuum chamber 12 is fixedly provided with a silicon sensor chip 13, the top end of the vacuum chamber 12 is fixedly connected with a pressure conversion element 14, the top end of the inner wall of the first protective housing 4 is fixedly connected with an electric signal conversion control element 15, and the outside of the top end of the second protective housing 6 is fixedly provided with a transmission wire.
The utility model discloses in: the pressure-inducing through holes 3 are designed equidistantly, the fixed connecting blocks 2 are mutually bonded and connected with the inner wall of the air inlet bottom port 1, and the air inlet bottom port 1 is integrally connected with the first protective shell 4; therefore, after the pressure sensor is connected with other objects, gas can equally and filter and enter the air inlet bottom port 1, and the accuracy of the measured data of the pressure sensor is improved.
The utility model discloses in: the outer side of the middle section of the first protective shell 4 is in clamping connection with the inside of the second protective shell 6, and the waterproof membrane 5 is in fit connection with the connection part of the first protective shell 4 and the second protective shell 6; the waterproof membrane 5 is made of a fluoride composite material, so that the waterproof effect of the joint of the sensor can be well improved, and the influence of moisture on the measurement accuracy of the sensor is avoided.
The utility model discloses in: the number of the measuring support rods 8 is five, the five measuring support rods 8 are designed to be equidistant, and the measuring support rods 8 are in adhesive connection with the surface of the movable bottom membrane 7; the measuring support rod 8 can be ejected upwards after being vibrated by the movable bottom film 7, the measuring support rod 8 with a large number is different in data in the measuring process, the sensor can integrate data to obtain an average value, the accurate data effect is better compared with that of the traditional pressure sensor, and the practical effect of the sensor is improved.
The utility model discloses in: the number of the pressing rods 9 is four, the pressing rods 9 are in fit connection with the surface of the movable base membrane 7, and the pressing rods 9 are in elastic connection with the bonding bottom plate 10; the press-fit rod 9 can be fixedly provided with the movable bottom film 7, and compared with the mode of directly fixing the movable bottom film, the mode can provide more movable space for the movable bottom film 7, and the increase of the range of sensing data is ensured.
The utility model discloses in: the sensing silicon chip 13 is electrically connected with the pressure conversion element 14, the pressure conversion element 14 is electrically connected with the electric signal conversion control element 15, and the electric signal conversion control element 15 is electrically connected with the transmission wire 16; the parts are electrically connected with each other, so that pressure data is converted into electric signals to be transmitted, and the use convenience of the pressure sensor is improved.
The working principle is as follows: when the sensor is used, firstly, the power transmission line 16 is connected with a power supply, then the bottom end of the power transmission line is fixedly arranged at a position where the pressure is required to be detected, then other substances to be detected such as wind and the like can randomly pass through the pressure leading perforation hole 3 at the bottom end to cause the vibration of the movable bottom film 7, the vibration of the movable bottom film 7 can drive the measuring support rod 8 to upwards pop out to enable the measuring support rod 8 and the silicon sensor chip 13 to be contacted with each other, the silicon sensor chip 13 can correspondingly record the popping-out force of a plurality of measuring rods, the transmitted signals enter the pressure conversion element 14 to convert the pressure into corresponding electric signals, the electric signal conversion control element 15 can integrate a plurality of data and take an intermediate value to display, thus, the data accuracy effect of the pressure sensor can be well improved, the inside of the vacuum chamber 12 is of a hollow design, and the influence of, the service life of the sensor is further prolonged.
In summary, the following steps: the vacuum degree pressure sensor has the advantages that through the design of the pressure inducing perforation hole 3, after the pressure sensor is connected with other objects, gas can equally and in a filtering mode enter the air inlet bottom port 1, the accuracy of data measured by the pressure sensor is improved, the waterproof diaphragm 5 is made of a fluoride composite material, the waterproof effect of the connection position of the pressure sensor can be well improved, the influence of moisture entering on the accuracy of the measurement of the pressure sensor is avoided, a plurality of measuring support rods 8 which are arranged at equal intervals are different in data in the measuring process, the sensor can integrate data to obtain an average value, the accurate data effect is better compared with that of the traditional pressure sensor, the practical effect of the pressure sensor is improved, the movable bottom membrane 7 can be fixedly installed through the press-fit rod 9, the movable bottom membrane 7 is directly fixed, and more movable spaces can be given to the movable bottom membrane 7 in such a mode, the increase of the range of the sensing data is ensured, and the vacuum design of the vacuum chamber 12 can help to reduce the influence of the outside on the inside of the sensor, so that the measurement accuracy is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a vacuum pressure sensor, includes air inlet bottom port (1), its characterized in that: the air inlet bottom opening is characterized in that a fixed connecting block (2) is fixedly mounted at the inner wall of the air inlet bottom opening (1), a guide pressure perforation hole (3) is formed in the fixed connecting block (2), a first protective shell (4) is fixedly mounted at the top end of the air inlet bottom opening (1), a second protective shell (6) is movably connected to the top end of the first protective shell (4), a waterproof membrane (5) is fixedly mounted at the joint of the bottom of the second protective shell (6) and the outer side of the first protective shell (4), a movable bottom membrane (7) is movably connected to the inner bottom end of the first protective shell (4), a press-fit rod (9) is movably connected to the outer side of the top end of the movable bottom membrane (7), a bonding bottom plate (10) is fixedly connected to the top end of the press-fit rod (9), a compensation resistor (11) is fixedly connected to the top end of the bonding bottom plate (10), and a vacuum chamber (, the utility model discloses a vacuum chamber, including activity basement membrane (7), fixed position that activity basement membrane (7) upper end surface is close to the middle section installs and measures vaulting pole (8), the top of measuring vaulting pole (8) passes bonding bottom plate (10) and compensation resistance (11) inside in proper order and extends to the inside of vacuum chamber (12), the inside top fixed mounting of vacuum chamber (12) has sensing silicon chip (13), the top fixedly connected with pressure conversion component (14) of vacuum chamber (12), the inner wall top fixedly connected with signal of telecommunication conversion control component (15) of first protecting sheathing (4), the top outside fixed mounting of second protecting sheathing (6) has transmission electric wire (16).
2. A vacuum pressure sensor as in claim 1 wherein: the pressure-inducing perforation (3) is designed equidistantly, the fixed connecting block (2) is in mutual adhesive connection with the inner wall of the air inlet bottom opening (1), and the air inlet bottom opening (1) is integrally connected with the first protective shell (4).
3. A vacuum pressure sensor as in claim 1 wherein: the middle section outside of first protective housing (4) is connected for the block each other with the inside of second protective housing (6), waterproofing membrane (5) are connected for the laminating with the junction of first protective housing (4) and second protective housing (6).
4. A vacuum pressure sensor as in claim 1 wherein: the number that measures vaulting pole (8) and set up is five, and five measures vaulting pole (8) and be equidistant design, measure vaulting pole (8) and movable basement membrane (7) the surface be adhesive connection.
5. A vacuum pressure sensor as in claim 1 wherein: the laminating machine is characterized in that the number of the laminating rods (9) is four, the laminating rods (9) are connected with the surface of the movable bottom film (7) in a laminating manner, and the laminating rods (9) are elastically connected with the bonding bottom plate (10).
6. A vacuum pressure sensor as in claim 1 wherein: the sensing silicon chip (13) is electrically connected with the pressure conversion element (14), the pressure conversion element (14) is electrically connected with the electric signal conversion control element (15), and the electric signal conversion control element (15) is electrically connected with the transmission wire (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143949.1U CN210198629U (en) | 2019-07-21 | 2019-07-21 | Vacuum degree pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921143949.1U CN210198629U (en) | 2019-07-21 | 2019-07-21 | Vacuum degree pressure sensor |
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| Publication Number | Publication Date |
|---|---|
| CN210198629U true CN210198629U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921143949.1U Active CN210198629U (en) | 2019-07-21 | 2019-07-21 | Vacuum degree pressure sensor |
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| CN (1) | CN210198629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642623A (en) * | 2023-07-17 | 2023-08-25 | 广东润宇传感器股份有限公司 | Pressure sensor with pi-shaped structure pressure seat |
-
2019
- 2019-07-21 CN CN201921143949.1U patent/CN210198629U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116642623A (en) * | 2023-07-17 | 2023-08-25 | 广东润宇传感器股份有限公司 | Pressure sensor with pi-shaped structure pressure seat |
| CN116642623B (en) * | 2023-07-17 | 2023-10-03 | 广东润宇传感器股份有限公司 | Pressure sensor with pi-shaped structure pressure seat |
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