CN213902719U - Integrated stainless steel pressure sensor - Google Patents
Integrated stainless steel pressure sensor Download PDFInfo
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- CN213902719U CN213902719U CN202120097328.5U CN202120097328U CN213902719U CN 213902719 U CN213902719 U CN 213902719U CN 202120097328 U CN202120097328 U CN 202120097328U CN 213902719 U CN213902719 U CN 213902719U
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- stainless steel
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- integrated stainless
- pressure sensor
- elastic body
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Abstract
The utility model discloses an integrated stainless steel pressure sensor, which comprises an integrated stainless steel elastomer, a Wheatstone bridge sintered by thick film technology and a compensating circuit; a pressure diaphragm is processed inside the integrated stainless steel elastic body, threads and a hexagon used for mounting the sensor are processed outside the integrated stainless steel elastic body, and a Wheatstone bridge, a compensation circuit and a bonding pad are arranged at the top of the integrated stainless steel elastic body. The utility model discloses the hidden danger of pressure medium's leakage because of O type circle has been avoided to the integrated structure, has improved pressure sensor's reliability; the integrated structure can realize higher measuring range; the integrated structure can realize higher overload resistance; the integrated stainless steel structure is directly provided with mounting threads and can be directly mounted on an interface of a pressure source to be measured.
Description
Technical Field
The utility model relates to an integration stainless steel pressure sensor belongs to sensor technical field.
Background
As shown in fig. 4, the conventional pressure sensor is a ceramic pressure core (hereinafter, simply referred to as a ceramic core) manufactured by a thick film technique (high temperature sintering), and the pressure sensor can be assembled only by sealing an O-ring because of no mounting thread. The shell (hereinafter, referred to as the shell) of the pressure sensor for assembling the ceramic core is assembled in the shell to form the assembled pressure sensor, and the ceramic core is not provided with mounting threads, so that the ceramic core and the shell can be sealed only by an O-shaped ring. The sealing by the O-shaped ring has the following defects: because the mechanical strength of the O-shaped ring is limited, the measuring range of the assembled pressure sensor cannot be very large, and the overload resistance is not high; aging or corrosion of the O-ring can lead to leakage of the pressure medium.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integration stainless steel pressure sensor to solve above-mentioned technical problem.
In order to realize the purpose, the utility model adopts the following technical scheme: the integrated stainless steel pressure sensor comprises an integrated stainless steel elastomer, a Wheatstone bridge sintered by thick film technology and a compensation circuit; a pressure diaphragm is processed inside the integrated stainless steel elastic body, threads and a hexagon used for mounting the sensor are processed outside the integrated stainless steel elastic body, and a Wheatstone bridge, a compensation circuit and a bonding pad are arranged at the top of the integrated stainless steel elastic body.
Preferably, there are 4 pads, two by two distribute in the left and right sides for select the connected mode according to customer's needs, including contact, cable, contact pin, winding displacement etc..
Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses integrated structure has avoided using O type circle sealed, promptly: the hidden danger of pressure medium leakage caused by the O-shaped ring is avoided, and the reliability of the pressure sensor is improved; the integrated structure can realize higher measuring range; the integrated structure can realize higher overload resistance; the integrated stainless steel structure is directly provided with mounting threads and can be directly mounted on an interface of a pressure source to be measured. The 4 pads are evenly distributed on the side. When the signal conditioning circuit board is welded on the electrical connection of the pressure sensor in the later period, the circuit board can be fixed more stably by the aid of the distributed welding pads.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
fig. 2 is a cross-sectional view of the present invention shown in fig. 1;
fig. 3 is a top schematic view of the present invention;
fig. 4 is a schematic diagram of a conventional sensor.
In the figure: 1. the device comprises an integrated stainless steel elastomer, 2, a Wheatstone bridge, 3, a compensation circuit, 4, a welding disc, 5, threads, 6, a hexagon, 7, a pressure diaphragm, 8, a pressure ring, 9, a ceramic pressure core body, 10, an O-shaped ring, 11 and a pressure joint shell.
Detailed Description
The invention is explained in further detail below with reference to the figures and the embodiments.
The integrated stainless steel pressure sensor comprises an integrated stainless steel elastomer 1, a Wheatstone bridge 2 sintered by thick film technology and a compensation circuit 3; a pressure diaphragm 7 is processed inside the integrated stainless steel elastic body 1, threads 5 and a hexagon 6 for mounting a sensor are processed outside the integrated stainless steel elastic body 1, and a Wheatstone bridge 2, a compensation circuit 3 and a bonding pad 4 are arranged at the top of the integrated stainless steel elastic body 1.
The number of the welding pads is 4, every two welding pads are distributed on the left side and the right side, and the welding pads are used for selecting connection modes according to the requirements of customers, wherein the connection modes comprise contacts, cables, contact pins, flat cables and the like. When the signal conditioning circuit board is welded on the electrical connection of the pressure sensor in the later period, the circuit board can be fixed more stably by the aid of the distributed welding pads.
The piezoresistor is directly sintered on the integrated stainless steel pressure sensor by a thick film technology to manufacture the pressure sensor, so that the O-shaped ring is prevented from being used for sealing the inside of the shell, and the measuring range and the overload resistance are improved.
The foregoing is a preferred embodiment of the present invention, and for those skilled in the art to understand the teaching of the present invention, the changes, modifications, replacements and variations to the embodiments will still fall within the protection scope of the present invention without departing from the principle and spirit of the present invention.
Claims (2)
1. The integrated stainless steel pressure sensor is characterized by comprising an integrated stainless steel elastomer, a Wheatstone bridge sintered by thick film technology and a compensation circuit; a pressure diaphragm is processed inside the integrated stainless steel elastic body, threads and a hexagon used for mounting the sensor are processed outside the integrated stainless steel elastic body, and a Wheatstone bridge, a compensation circuit and a bonding pad are arranged at the top of the integrated stainless steel elastic body.
2. The integrated stainless steel pressure sensor according to claim 1, wherein the number of the bonding pads is 4, and the bonding pads are distributed on the left side and the right side in pairs and used for selecting connection modes according to the requirements of customers, wherein the connection modes comprise contacts, cables, pins and flat cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120097328.5U CN213902719U (en) | 2021-01-14 | 2021-01-14 | Integrated stainless steel pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120097328.5U CN213902719U (en) | 2021-01-14 | 2021-01-14 | Integrated stainless steel pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213902719U true CN213902719U (en) | 2021-08-06 |
Family
ID=77107665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120097328.5U Active CN213902719U (en) | 2021-01-14 | 2021-01-14 | Integrated stainless steel pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213902719U (en) |
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2021
- 2021-01-14 CN CN202120097328.5U patent/CN213902719U/en active Active
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