CN220819267U - Split pressure sensor with threaded mounting structure - Google Patents
Split pressure sensor with threaded mounting structure Download PDFInfo
- Publication number
- CN220819267U CN220819267U CN202321744626.4U CN202321744626U CN220819267U CN 220819267 U CN220819267 U CN 220819267U CN 202321744626 U CN202321744626 U CN 202321744626U CN 220819267 U CN220819267 U CN 220819267U
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- Prior art keywords
- pressure sensor
- stainless steel
- split
- steel glass
- glass sintering
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- 239000011521 glass Substances 0.000 claims abstract description 45
- 239000010935 stainless steel Substances 0.000 claims abstract description 44
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 44
- 238000005245 sintering Methods 0.000 claims abstract description 40
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- KTXUOWUHFLBZPW-UHFFFAOYSA-N 1-chloro-3-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C=C(Cl)C=CC=2)=C1 KTXUOWUHFLBZPW-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model provides a split pressure sensor with a threaded mounting structure, which comprises a steel seal pressure sensor and a split mounting piece; the steel seal pressure sensor comprises a stainless steel glass sintering seat and a PCB board, wherein an isolation diaphragm and a silicon piezoresistive chip are arranged in the stainless steel glass sintering seat, the silicon piezoresistive chip is connected with an electric signal of the PCB board, and a connecting flange is arranged on the outer ring of the stainless steel glass sintering seat; the front end of the split type mounting piece is provided with front end mounting external threads, the split type mounting piece is sleeved on the stainless steel glass sintering seat on the inner side of the connecting flange, and the front end of the split type mounting piece is connected with the connecting flange of the stainless steel glass sintering seat in a welding mode. The sensor has the advantages of meeting the custom demand of customers, being fast to produce and having better economical efficiency.
Description
Technical Field
The utility model mainly relates to the technical field of sensors, in particular to a split pressure sensor with a threaded mounting structure.
Background
The traditional pressure sensor is installed in a suspension mode in the conventional use process, the O-shaped ring type is sealed by the O-shaped ring type, and the production mode needs to use at least two parts of the sensor and the assembly shell to be made into a finished product. Multiple materials and more manpower are required to be consumed, and the requirement of rapid production cannot be met.
According to the requirements of quick production and labor saving, an integrated pressure sensor with threaded installation is currently appeared on the market, and the stainless steel part of the pressure sensor consists of 3 parts, namely a stainless steel glass sintering seat, a diaphragm and a compression ring. The screw thread and the glass are arranged on the same stainless steel glass base, no other welding exists except the position of the compression ring for fixing the diaphragm on the product itself, and the stainless steel glass sintering seats with different screw threads are required to be provided due to the limitation of the screw thread selection of customers, so that the variability is small and the investment is large. The sensor can solve the above requirements, but the integrated pressure sensor with the threaded installation has higher price, single type of optional threads and poor economical efficiency, so that the sensor with the split threaded installation structure is necessary to be designed to meet the requirements of quick production, quick customization according to the requirements of customers and the like.
Disclosure of utility model
In order to solve the defects of the prior art, the utility model combines the prior art, and provides the split pressure sensor with the threaded mounting structure from the practical application, which has the advantages of meeting the custom-made requirements of customers, being quick to produce and having better economical efficiency.
The technical scheme of the utility model is as follows:
A split pressure sensor with a threaded mounting structure comprises a steel seal pressure sensor and a split mounting piece;
The steel seal pressure sensor comprises a stainless steel glass sintering seat and a PCB board, wherein an isolation diaphragm and a silicon piezoresistive chip are arranged in the stainless steel glass sintering seat, the silicon piezoresistive chip is connected with an electric signal of the PCB board, and a connecting flange is arranged on the outer ring of the stainless steel glass sintering seat;
The front end of the split type mounting piece is provided with front end mounting external threads, the split type mounting piece is sleeved on the stainless steel glass sintering seat on the inner side of the connecting flange, and the front end of the split type mounting piece is connected with the connecting flange of the stainless steel glass sintering seat in a welding mode.
Further, a first sealing O-shaped ring is arranged between the inner ring of the split type mounting piece and the outer ring of the stainless steel glass sintering seat, and the first sealing O-shaped ring is positioned on one side of the connecting flange.
Further, a first sealing ring groove is formed in the outer ring of the stainless steel glass sintering seat, and the first sealing O-shaped ring is arranged in the first sealing ring groove.
Further, a pressing flange is arranged on the split type mounting piece, a second sealing O-shaped ring is arranged at the pressing flange, and the second sealing O-shaped ring is located on one side of the front end where the external thread is mounted.
Further, the end face of the compression flange is provided with a second sealing ring groove, and the second sealing O-shaped ring is arranged in the second sealing ring groove.
Further, the rear end of the split type mounting piece is provided with a rear end mounting external thread.
Further, the front end of the split type mounting piece is welded with the connecting flange through laser.
Further, the stainless steel glass sintering seat is also provided with a pressure guide pipe and a high-temperature wire;
The split type mounting piece is internally provided with a through cavity, and the part, the PCB board, the impulse pipe and the high-temperature wire, which are positioned on one side of the connecting flange, of the stainless steel glass sintering seat are arranged in the cavity, and the high-temperature wire extends out from the rear end of the split type mounting piece.
Further, silicone oil and ceramic filler are filled in the stainless steel glass sintering seat.
Further, the stainless steel glass sintering seat is provided with a compression ring positioned at the outer side of the connecting flange.
The utility model has the beneficial effects that:
The pressure sensor with the split type threaded mounting structure is mainly composed of a steel seal pressure sensor and a split type mounting part, the steel seal pressure sensor and the split type mounting part are integrated through welding, the steel seal pressure sensor is of a unified structure, early production and stock can be carried out, mounting threads on the split type mounting part can be processed at any time according to the requirement of customers on thread specifications, after processing, the pressure sensor with the split type threaded mounting structure can be welded with the pressure sensor to finish a finished product, the pressure sensor with the split type threaded mounting structure can be shortened on a supply period, the cost is lower than that of the pressure sensor with the integrated threaded mounting structure, and the pressure sensor with the split type threaded mounting structure is in a win-win state for customers and manufacturers.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the utility model.
FIG. 2 is a schematic diagram of the structure of the steel seal pressure sensor.
The reference numerals shown in the figures: 1. a ceramic filler; 2. silicon piezoresistive die; 3. a bond alloy wire; 4. an isolation diaphragm; 5. silicone oil; 6. a compression ring; 7. a first sealing O-ring; 8. a stainless steel glass sintering seat; 9. steel balls; 10. a high temperature wire; 11. a PCB board; 12. a pressure guiding pipe; 13. a connecting flange; 14. a split mounting member; 15. the front end is provided with an external thread; 16. compressing the flange; 17. a second sealing O-ring; 18. the rear end is provided with external threads.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and equivalents thereof fall within the scope of the utility model as defined by the claims.
As shown in fig. 1 and fig. 2, a schematic diagram of a pressure sensor related structure of a split type threaded mounting structure is provided in this embodiment.
Referring to fig. 1, in this embodiment, the pressure sensor of the split threaded mounting structure is mainly composed of two parts: the steel seal pressure sensor and the split type mounting piece 14 are connected through laser welding, and the two groups are combined to form a complete finished product with a threaded mounting structure.
In this embodiment, referring to fig. 2, the steel seal pressure sensor structure mainly includes a stainless steel glass sintering seat 8, a PCB board 11, a mounting cavity is disposed in the stainless steel glass sintering seat 8, and a silicon piezoresistive chip 2, an isolation diaphragm 4, and the like are disposed in the mounting cavity. The silicon piezoresistive die 2 transmits signals to the PCB11 through the bond wires 3 and corresponding leads.
The stainless glass frit 8 serves as a connecting body for the mounting of sensor chips and the like on the one hand and for the connection with the split mount 14 on the other hand. Specifically, the stainless steel glass sintering seat 8 of this embodiment is provided with a connecting flange 13 at its outer periphery, the stainless steel glass sintering seat 8 inside the connecting flange 13 has a smaller diameter and a larger outside diameter, the split mounting member 14 is integrally in a cylindrical structure, a through cavity is arranged inside, the front end of the split mounting member 14 is provided with a front end mounting external thread 15, the rear end is provided with a rear end mounting external thread 18, the front end of the split mounting member 14 is sleeved on the stainless steel glass sintering seat 8 with a smaller outside diameter inside the connecting flange 13, and the front end of the split mounting member 14 is in contact with the connecting flange 13 of the stainless steel glass sintering seat 8 and is connected at the contact position by laser welding. The split type part adopts a laser welding connection mode, the laser welding is cold welding, and the welding has little influence on the silicon piezoresistive chip.
In the above-mentioned structure of this embodiment, steel seal pressure sensor and split type mounting 14 all can be processed alone, finally form the finished product in an organic whole through the welding, and steel seal pressure sensor is unified structure, consequently can early produce the stock, and split type mounting 14 is because of the customer is different to the screw thread demand, consequently can process according to the screw thread specification according to customer's actual demand, and the pressure sensor of taking screw thread mounting structure can be formed by direct laser welding with steel seal pressure sensor connection after the processing.
In this embodiment, a first sealing O-ring 7 is disposed between the inner ring of the split mounting member 14 and the outer ring of the stainless steel glass sintering seat 8, the first sealing O-ring 7 is located on one side of the connecting flange 13, specifically, a first sealing ring groove is disposed on the outer ring of the stainless steel glass sintering seat 8, and the first sealing O-ring 7 is disposed in the first sealing ring groove to realize axial positioning. The split mounting piece 14 and the stainless steel glass sintering seat 8 are sealed through the arrangement of the first sealing O-shaped ring 7.
In a preferred embodiment provided in this embodiment, the split mounting member 14 is provided with a compression flange 16, and a second sealing O-ring 17 is provided at the compression flange 16, where the second sealing O-ring 17 is located at the rear side of the front mounting external thread 15. Specifically, the end face of the compression flange 16 is provided with a second sealing ring groove, the second sealing O-shaped ring 17 is arranged in the second sealing ring groove, and when the finished product pressure sensor of the embodiment is installed at the detection position through the front end installation external thread 15, the sealing effect between the finished product sensor and the detection position is achieved through the second sealing O-shaped ring 17.
In this embodiment, still provide a simple structure, the better steel seal pressure sensor concrete structure of performance. The steel seal pressure sensor also comprises a pressure guiding pipe 12 and a high-temperature wire 10, wherein the stainless steel glass sintering seat 8 is also filled with silicone oil 5 and ceramic filler 1, a through cavity is formed in the split type mounting piece 14, the part, located on one side of the connecting flange 13, of the stainless steel glass sintering seat 8, the PCB 11, the pressure guiding pipe 12 and the high-temperature wire 10 are arranged in the cavity, and the high-temperature wire 10 extends out from the rear end of the split type mounting piece 14. The silicon piezoresistive chip 2 is communicated with the atmosphere through a pressure guide pipe 12, and data are transmitted outwards through a high-temperature wire 10 connected with a PCB 11. Further, a pressing ring 6 is further arranged on the stainless steel glass sintering seat 8 and located on the outer side of the connecting flange 13, and is used for assisting in fixing the isolation diaphragm 4.
Claims (10)
1. The pressure sensor with the split threaded mounting structure is characterized by comprising a steel seal pressure sensor and a split mounting piece;
The steel seal pressure sensor comprises a stainless steel glass sintering seat and a PCB board, wherein an isolation diaphragm and a silicon piezoresistive chip are arranged in the stainless steel glass sintering seat, the silicon piezoresistive chip is connected with an electric signal of the PCB board, and a connecting flange is arranged on the outer ring of the stainless steel glass sintering seat;
The front end of the split type mounting piece is provided with front end mounting external threads, the split type mounting piece is sleeved on the stainless steel glass sintering seat on the inner side of the connecting flange, and the front end of the split type mounting piece is connected with the connecting flange of the stainless steel glass sintering seat in a welding mode.
2. The pressure sensor of claim 1, wherein a first sealing O-ring is disposed between the inner ring of the split mounting member and the outer ring of the stainless steel glass sintering seat, and the first sealing O-ring is disposed on one side of the connecting flange.
3. The pressure sensor of claim 2, wherein the stainless steel glass frit seat outer race is provided with a first seal ring groove, and the first seal O-ring is disposed in the first seal ring groove.
4. The pressure sensor of claim 1, wherein the split mounting member is provided with a compression flange, a second sealing O-ring is provided at the compression flange, and the second sealing O-ring is located at the side of the front end where the external thread is mounted.
5. The split threaded mounting structure pressure sensor of claim 4, wherein the compression flange end face is provided with a second seal ring groove, and the second seal O-ring is disposed in the second seal ring groove.
6. The pressure sensor of claim 1, wherein the split mount rear end is provided with rear end mounting external threads.
7. The pressure sensor of claim 1, wherein the split mount front end is laser welded to the attachment flange.
8. The pressure sensor with the split type threaded mounting structure according to claim 1, wherein a pressure guide tube and a high-temperature wire are further arranged on the stainless steel glass sintering seat;
The split type mounting piece is internally provided with a through cavity, and the part, the PCB board, the impulse pipe and the high-temperature wire, which are positioned on one side of the connecting flange, of the stainless steel glass sintering seat are arranged in the cavity, and the high-temperature wire extends out from the rear end of the split type mounting piece.
9. The pressure sensor of claim 1, wherein the stainless steel glass frit seat is further filled with silicone oil and ceramic filler.
10. The pressure sensor of claim 1, wherein the stainless steel glass sintering seat is further provided with a compression ring outside the connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321744626.4U CN220819267U (en) | 2023-07-05 | 2023-07-05 | Split pressure sensor with threaded mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321744626.4U CN220819267U (en) | 2023-07-05 | 2023-07-05 | Split pressure sensor with threaded mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220819267U true CN220819267U (en) | 2024-04-19 |
Family
ID=90707303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321744626.4U Active CN220819267U (en) | 2023-07-05 | 2023-07-05 | Split pressure sensor with threaded mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220819267U (en) |
-
2023
- 2023-07-05 CN CN202321744626.4U patent/CN220819267U/en active Active
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