CN218545994U - Novel diffused silicon pressure transmitter - Google Patents
Novel diffused silicon pressure transmitter Download PDFInfo
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- CN218545994U CN218545994U CN202223010952.0U CN202223010952U CN218545994U CN 218545994 U CN218545994 U CN 218545994U CN 202223010952 U CN202223010952 U CN 202223010952U CN 218545994 U CN218545994 U CN 218545994U
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Abstract
The utility model relates to a novel diffused silicon pressure transmitter, which comprises a base, a diffused silicon pressure core, a shell, a signal amplification circuit board, an output line and a Husman plug-in unit; the base comprises a front end base and a hexagonal body; threads are machined on the outer wall of the front end base, the outer diameter of the hexagonal body is larger than that of the front end base, and a circle of ED sealing ring is arranged on one side, facing the front end base, of the hexagonal body; a part of the diffused silicon pressure core body is arranged in the groove; the signal amplification circuit board is arranged on the diffusion silicon pressure core body, pins are arranged on the diffusion silicon pressure core body, the signal amplification circuit board is welded on the pins on the diffusion silicon pressure core body through electric soldering iron, and the other end of the signal amplification circuit board is electrically connected with the Husman plug-in unit through an output line; the diffusion silicon pressure core body is provided with a step in the middle, and the periphery of the step in the middle of the diffusion silicon pressure core body is firmly welded with the annular right angle at the top of the groove on the hexagonal body by laser. Through the utility model discloses, pressure transmitter's whole dielectric compatibility is stronger.
Description
Technical Field
The utility model relates to a novel diffusion silicon pressure transmitter belongs to sensor technical field.
Background
Pressure transmitters are a wide variety of types on the market, with diffused silicon pressure transmitters being one of the most common pressure sensors used in industrial practice. A base of the pressure transmitter is generally a stainless steel base, a cylindrical groove is formed in the base, a diffused silicon pressure core body is arranged in the groove, pressure core body sealing rings are arranged at the front end and the periphery of the diffused silicon pressure core body, and a threaded sealing pressing ring is arranged at the rear end of the diffused silicon pressure core body. Because the pressure core body sealing ring and the sealing press ring are thick, the groove needs to be made deeper in order to completely accommodate the pressure core body sealing ring and the sealing press ring, and the depth of the groove can reach about 20mm generally; simultaneously, in order to prevent the medium leakage, must let diffusion silicon pressure core, pressure core sealing washer and sealed clamping ring can closely laminate with the recess, and this has higher requirement just to the dimensional accuracy and the roughness of recess, and consequently the processing degree of difficulty of recess is great, and machining efficiency is lower and pressure transmitter's assembly efficiency is lower.
Moreover, the pressure core body sealing ring is generally made of rubber, and in the actual use process of the pressure transmitter, the pressure core body sealing ring may react with a measured medium to cause the damage of the sealing ring; the sealing ring may also gradually age with the use time and finally lose the bee capacity; the above reasons all result in leakage of the medium into the pressure transmitter, so that the pressure transmitter is scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a novel diffused silicon pressure transmitter.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the utility model provides a novel diffusion silicon pressure transmitter which characterized by: the device comprises a base, a diffusion silicon pressure core, a shell, a signal amplification circuit board, an output line and a Husman plug-in unit;
the base comprises a front end base and a hexagonal body which are integrally formed; threads are machined on the outer wall of the front end base, the outer diameter of the hexagonal body is larger than that of the front end base, and a circle of ED sealing ring is arranged on one side, facing the front end base, of the hexagonal body;
a groove is formed in one side, back to the front end base, of the hexagonal body, and a part of the diffused silicon pressure core body is arranged in the groove; the signal amplification circuit board is arranged on the diffusion silicon pressure core body, pins are arranged on the diffusion silicon pressure core body, the signal amplification circuit board is welded on the pins on the diffusion silicon pressure core body through electric soldering iron, and the other end of the signal amplification circuit board is electrically connected with the Husman plug-in unit through an output line;
the base is provided with a pressure guiding hole, and the pressure guiding hole penetrates through the front end base and the hexagonal body and is communicated with the groove; the lower part of the diffused silicon pressure core body faces the pressure leading hole; a circle of sealing ring is arranged at the contact position of the diffused silicon pressure core body and the groove;
one end of the shell is welded on the hexagonal body of the base, the other end of the shell is in threaded connection with the Husman plug-in, and the diffused silicon pressure core, the signal amplification circuit board and the output line are arranged in the shell;
the diffusion silicon pressure core body is characterized in that a step is arranged in the middle of the diffusion silicon pressure core body, and the periphery of the step in the middle of the diffusion silicon pressure core body is firmly welded with the annular right angle at the top of the groove in the hexagonal body through laser.
The base is made of 316L stainless steel, is integrally machined and formed and is provided with mounting threads, a hexagonal body and an ED sealing ring.
The depth of the groove is 3-5mm, and the inner diameter of the groove is 19mm.
A sealing ring mounting groove is formed in one side, facing the front end base, of the hexagonal surface, and an ED sealing ring is arranged in the sealing ring mounting groove.
The shell is made of stainless steel.
The shell is welded on the hexagonal body through laser;
the other end of the shell is provided with an external thread, the Hessian plug-in is provided with an internal thread, the internal thread on the Hessian plug-in is screwed on the external thread of the shell, and the Hessian plug-in is screwed on the top end of the shell;
or the like, or, alternatively,
the other end of the shell is provided with an internal thread, the Hessian plug-in is provided with an external thread, the internal thread on the shell is screwed on the external thread on the Hessian plug-in, and the Hessian plug-in is screwed on the top end of the shell.
The utility model discloses simple structure, manufacturing are easy, convenient to use, through the utility model discloses, the novel diffusion silicon pressure transmitter that provides, including base (integrated processing has screw thread, hexagonal body, ED sealing washer on the base), diffusion silicon pressure core stitch, signal amplification circuit board, shell, output line, hesmann plug-in components. The base is made of 316L material and is integrally formed and provided with mounting threads, a hexagonal body and an ED sealing ring, the outer wall of the front end base is provided with the threads, and the hexagonal body is provided with a groove with the depth of 3-5mm and the diameter of 19mm and used for mounting a diffused silicon pressure core body; the periphery of the step in the middle of the diffused silicon pressure core body is welded firmly with the annular right angle at the top of the groove by laser welding; the signal amplification circuit board is arranged on the diffusion silicon pressure core body and welded on a pin of the diffusion silicon pressure core body through an electric soldering iron, and the other end of the signal amplification circuit board is electrically connected with the Husmann plug-in unit through an output line. The shell is stainless steel, and through laser welding on the hexagonal body, the shell other end has the screw thread, and the hesmann plug-in components is screwed on the shell top through the screw thread.
When the base receives liquid, the liquid passes through the pressure guiding hole to contact the diffused silicon pressure core body, and when the diffused silicon pressure core body is stressed and has stress change, the liquid is transmitted to the signal amplification circuit board through the pins and then is transmitted to the Huffman plug-in unit through the output line.
The utility model discloses in, diffusion silicon pressure core's periphery and recess ring seal weld need not set up pressure core sealing washer and sealed clamping ring in the recess, consequently can reduce the degree of depth of recess to between 3mm ~5mm by 20mm, do not have precision and roughness requirement to the recess simultaneously, do not have the ageing problem of pressure core sealing washer yet. The difficulty of groove machining is reduced, the sealing effect of the pressure transmitter is improved, meanwhile, the cost is reduced, and the assembly efficiency of the pressure transmitter is improved.
Through the utility model discloses, have following benefit and advantage:
1) The structure is characterized in that: the base is integrally processed, the depth of a groove for installing the diffusion silicon pressure core is only 3 to 5mm, the requirements on roughness and size are low, and the machining difficulty is greatly reduced;
2) The assembly process has the characteristics that: the diffused silicon pressure core is directly welded in the groove on the base, and other diffused silicon core sealing rings are not needed to be arranged, so that the manufacturing process is simpler, and the reliability is higher; the signal amplification circuit board is directly welded on the pins of the diffusion silicon core body, so that the installation is more convenient, and the electrical connection is more reliable;
3) The material characteristics are as follows: the sensor connects liquid (base part) position to use stainless steel material, and base and shell are the 316L material, through laser welding after, need not set up the sealing washer of other materials for pressure transmitter's whole medium compatibility is stronger.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
in the figure: the device comprises a base 1, a hexagonal body 1-1, a thread 1-2, a diffused silicon pressure core 2, a shell 3, a 4ED sealing ring, a groove 5, pins 6, a signal amplification circuit board 7, an output line 8 and a Husmann plug-in unit 9.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and the accompanying description.
A novel diffused silicon pressure transmitter comprises a base 1, a diffused silicon pressure core body 2, a shell 3, a signal amplification circuit board 7, an output line 8 and a Husman plug-in unit 9. The base 1 comprises a front end base and a hexagonal body 1-1, wherein the front end base and the hexagonal body 1-1 are integrally formed; the outer wall of the front end base is provided with threads 1-2, the outer diameter of the hexagonal body 1-1 is larger than that of the front end base, and one side, facing the front end base, of the hexagonal body 1-1 is provided with a circle of ED sealing ring 4; specifically, a sealing ring mounting groove is formed in one side, facing the front end base, of the hexagonal body 1-1, and the ED sealing ring 4 is arranged in the sealing ring mounting groove.
A groove 5 is arranged on one side of the hexagonal body 1-1, which is back to the front end base, and a part of the diffused silicon pressure core body 2 is arranged in the groove 5; the signal amplification circuit board 7 is arranged on the diffusion silicon pressure core body 2, a pin 6 is arranged on the diffusion silicon pressure core body 2, the signal amplification circuit board 7 is welded on the pin 6 on the diffusion silicon pressure core body 2 through an electric soldering iron, and the other end of the signal amplification circuit board 7 is electrically connected with the Husman plug-in unit 9 through an output line 8;
a pressure guide hole 10 is formed in the base 1, and the pressure guide hole 10 penetrates through the front end base and the hexagonal body 1-1 and is communicated with the groove 5; the lower part of the diffused silicon pressure core body 2 faces the pressure leading hole 10; a circle of sealing rings are arranged at the contact part of the diffused silicon pressure core body 2 and the groove 5; one end of the shell 3 is welded on the hexagonal body 1-1 of the base 1, the other end of the shell is in threaded connection with the Husman plug-in unit 9, and the diffused silicon pressure core body 2, the signal amplification circuit board 7 and the output line 8 are arranged in the shell 3; the middle part of the diffused silicon pressure core body 2 is provided with a step, and the periphery of the step in the middle part of the diffused silicon pressure core body 2 is firmly welded with the annular right angle at the top of the groove 5 on the hexagonal body 1-1 by laser.
Further, the base 1 is made of 316L stainless steel, and the base 1 is integrally formed and provided with mounting threads 1-2, a hexagonal body 1-1 and an ED sealing ring 4. The depth of the groove 5 is 3-5mm, and the inner diameter of the groove 5 is 19mm. The shell 3 is made of stainless steel, and the shell 3 is welded on the hexagonal body 1-1 through laser; the other end of the shell 3 is provided with an external thread, the Hessian plug 9 is provided with an internal thread, the internal thread on the Hessian plug 9 is screwed on the external thread of the shell 3, and the Hessian plug 9 is screwed on the top end of the shell 3; or, the other end of the shell 3 is provided with an internal thread, the Hessian plug 9 is provided with an external thread, the internal thread on the shell 3 is screwed on the external thread on the Hessian plug 9, and the Hessian plug 9 is screwed on the top end of the shell 3.
Claims (6)
1. The utility model provides a novel diffusion silicon pressure transmitter which characterized by: the device comprises a base (1), a diffusion silicon pressure core body (2), a shell (3), a signal amplification circuit board (7), an output line (8) and a Husmann plug-in unit (9);
the base (1) comprises a front end base and a hexagonal body (1-1), wherein the front end base and the hexagonal body are integrally formed; the outer wall of the front end base is provided with threads (1-2), the outer diameter of the hexagonal body (1-1) is larger than that of the front end base, and one side, facing the front end base, of the hexagonal body (1-1) is provided with a circle of ED sealing ring (4);
a groove (5) is formed in one side, back to the front end base, of the hexagonal body (1-1), and one part of the diffused silicon pressure core body (2) is arranged in the groove (5); the signal amplification circuit board (7) is arranged on the diffusion silicon pressure core body (2), a pin (6) is arranged on the diffusion silicon pressure core body (2), the signal amplification circuit board (7) is welded on the pin (6) on the diffusion silicon pressure core body (2) through an electric soldering iron, and the other end of the signal amplification circuit board (7) is electrically connected with the Husky man plug-in (9) through an output line (8);
the base (1) is provided with a pressure guide hole (10), and the pressure guide hole (10) penetrates through the front end base and the hexagonal body (1-1) and is communicated with the groove (5); the lower part of the diffused silicon pressure core body (2) faces the pressure leading hole (10); a circle of sealing ring is arranged at the contact part of the diffused silicon pressure core body (2) and the groove (5);
one end of the shell (3) is welded on the hexagonal body (1-1) of the base (1), the other end of the shell is in threaded screwing connection with the Husmann plug-in (9), and the diffused silicon pressure core body (2), the signal amplification circuit board (7) and the output line (8) are arranged in the shell (3);
the diffusion silicon pressure core body (2) is provided with a step in the middle, and the periphery of the step in the middle of the diffusion silicon pressure core body (2) is firmly welded with the annular right angle at the top of the groove (5) on the hexagonal body (1-1) through laser.
2. The novel diffused silicon pressure transmitter of claim 1 wherein: the base (1) is made of 316L stainless steel, and the base (1) is integrally machined and formed and is provided with mounting threads (1-2), a hexagonal body (1-1) and an ED sealing ring (4).
3. The novel diffused silicon pressure transmitter of claim 1 wherein: the depth of the groove (5) is 3-5mm, and the inner diameter of the groove (5) is 19mm.
4. The novel diffused silicon pressure transmitter of claim 1 wherein: and one side of the hexagonal body (1-1) facing the front end base is provided with a sealing ring mounting groove, and an ED (electric discharge) sealing ring (4) is arranged in the sealing ring mounting groove.
5. The novel diffused silicon pressure transmitter of claim 1 wherein: the shell (3) is made of stainless steel.
6. The novel diffused silicon pressure transmitter of claim 1 wherein: the shell (3) is welded on the hexagonal body (1-1) through laser;
the other end of the shell (3) is provided with an external thread, the Hessian plug-in (9) is provided with an internal thread, the internal thread on the Hessian plug-in (9) is screwed on the external thread of the shell (3), and the Hessian plug-in (9) is screwed at the top end of the shell (3);
or the like, or, alternatively,
the other end of the shell (3) is provided with an internal thread, the Hessian plug-in (9) is provided with an external thread, the internal thread on the shell (3) is screwed on the external thread on the Hessian plug-in (9), and the Hessian plug-in (9) is screwed on the top end of the shell (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223010952.0U CN218545994U (en) | 2022-11-13 | 2022-11-13 | Novel diffused silicon pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223010952.0U CN218545994U (en) | 2022-11-13 | 2022-11-13 | Novel diffused silicon pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218545994U true CN218545994U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223010952.0U Active CN218545994U (en) | 2022-11-13 | 2022-11-13 | Novel diffused silicon pressure transmitter |
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| Country | Link |
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| CN (1) | CN218545994U (en) |
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- 2022-11-13 CN CN202223010952.0U patent/CN218545994U/en active Active
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