CN215262172U - Titanium alloy pressure sensor - Google Patents
Titanium alloy pressure sensor Download PDFInfo
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- CN215262172U CN215262172U CN202023053132.0U CN202023053132U CN215262172U CN 215262172 U CN215262172 U CN 215262172U CN 202023053132 U CN202023053132 U CN 202023053132U CN 215262172 U CN215262172 U CN 215262172U
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Abstract
The utility model discloses a titanium alloy pressure sensor, including titanium alloy casing and titanium alloy erection joint, be equipped with the movable groove in the titanium alloy casing, be equipped with the silicon oil pocket in the titanium alloy casing, the interior top fixedly connected with pressure sensor chip in silicon oil pocket, be equipped with the coupling mechanism who is used for pressure sensor chip intercommunication circuit in the titanium alloy casing. The utility model discloses rational in infrastructure, through setting up the titanium alloy steel ball on oiling groove and the oiling groove, the sealing washer between mounting groove and the signal output lead wire, realize that titanium alloy pressure sensor carries out the phenomenon that inside sealing prevents that the inside silicon oil of sensor from revealing to titanium alloy pressure sensor in the use, cause the influence to the precision of sensor, realize the assurance to titanium alloy casing and titanium alloy erection joint connection position welding strength through utilizing the triune welding mode, prevent that silicon oil from revealing's phenomenon from appearing in titanium alloy pressure sensor welding position.
Description
Technical Field
The utility model relates to a pressure sensor technical field especially relates to a titanium alloy pressure sensor.
Background
In the field of sensors, the base of the piezoresistive pressure sensor is made of SUS316L, and the inner conductor pin is made of kovar alloy. However, in the actual use process, the severe working environment often occurs, so that the service life is too short, the equipment fails, the piezoresistive pressure sensor using titanium alloy as the base material works in humid atmosphere and seawater medium, the corrosion resistance of the piezoresistive pressure sensor is far better than that of a stainless steel product, the piezoresistive pressure sensor has strong resistance to pitting corrosion, acid corrosion and stress corrosion, and the piezoresistive pressure sensor has excellent corrosion resistance to organic substances such as alkali, chloride and chlorine, nitric acid, sulfuric acid and the like and can meet the use requirements under various working conditions.
When the existing titanium alloy pressure sensor is used, the connection structure of the sensor is complex, and when silicon oil is injected into the pressure sensor, the phenomenon that the silicon oil is leaked easily occurs at a welding part when the pressure sensor in a common welding mode is used, so that the sensitivity of the titanium alloy pressure sensor is reduced, the titanium alloy pressure sensor cannot be normally used, and the device is scrapped to cause loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a titanium alloy pressure sensor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a titanium alloy pressure sensor, includes titanium alloy casing and titanium alloy erection joint, be equipped with the movable groove in the titanium alloy casing, be equipped with the silicon oil pocket in the titanium alloy casing, the interior top fixedly connected with pressure sensor chip in silicon oil pocket, be equipped with the coupling mechanism who is used for pressure sensor chip intercommunication circuit in the titanium alloy casing, be equipped with the welded layer between titanium alloy casing and the titanium alloy erection joint, be equipped with the oiling mechanism that is used for the controlling means fuel feeding in the titanium alloy casing, be equipped with titanium alloy ripple diaphragm between titanium alloy casing and the titanium alloy erection joint.
Preferably, the connecting mechanism comprises a plurality of mounting grooves arranged in the titanium alloy shell, the mounting grooves are communicated with the silicon oil cavity, a plurality of signal output leads penetrate through the mounting grooves, the lower end face of each signal output lead is electrically connected with the pressure sensor chip, and a sealing ring is arranged at the joint of each signal output lead and the inner bottom of each mounting groove.
Preferably, the oiling mechanism comprises an oiling groove arranged in the titanium alloy shell, the titanium alloy shell is penetrated below the oiling groove, an oiling port is arranged on the upper end face of the oiling groove, and a titanium alloy steel ball is arranged on the oiling port.
Preferably, the titanium alloy corrugated diaphragm is disposed between the titanium alloy housing and the titanium alloy mounting tab through a weld layer.
Preferably, an external pressure groove is formed in the titanium alloy mounting joint, and the external pressure groove penetrates through the titanium alloy mounting joint.
Preferably, the lower end face of the titanium alloy installing joint is provided with a connecting interface, and the side wall of the connecting interface is provided with a connecting screw.
Compared with the prior art, the utility model, its beneficial effect does:
1. through setting up the titanium alloy steel ball on oiling groove and the oiling groove, the sealing washer between mounting groove and the signal output lead wire, realize that titanium alloy pressure sensor carries out inside seal to titanium alloy pressure sensor in the use and prevents the phenomenon that the inside silicon oil of sensor revealed, cause the influence to the precision of sensor.
2. The welding strength of the connecting part of the titanium alloy shell and the titanium alloy installing joint is guaranteed by utilizing a three-in-one welding mode, and the phenomenon that silicone oil leaks from the welding part of the titanium alloy pressure sensor is prevented.
Drawings
Fig. 1 is a schematic view of an internal structure of a titanium alloy pressure sensor according to the present invention;
fig. 2 is a schematic front view of the titanium alloy pressure sensor according to the present invention.
In the figure: the device comprises a titanium alloy shell 1, a movable groove 2, a titanium alloy steel ball 3, an oil injection groove 4, a signal output lead 5, a silicon oil cavity 6, a pressure sensor chip 7, a titanium alloy corrugated diaphragm 8, a titanium alloy mounting joint 9, a connecting interface 10, an external pressure groove 11, a mounting groove 12 and a welding layer 13.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1-2, a titanium alloy pressure sensor comprises a titanium alloy housing 1 and a titanium alloy mounting joint 9, a movable groove 2 is arranged in the titanium alloy housing 1, a silicon oil cavity 6 is arranged in the titanium alloy housing 1, a pressure sensor chip 7 is fixedly connected to the inner top of the silicon oil cavity 6, a connecting mechanism for connecting the pressure sensor chip 7 with a circuit is arranged in the titanium alloy housing 1, a welding layer 13 is arranged between the titanium alloy housing 1 and the titanium alloy mounting joint 9, an oil injection mechanism for controlling the oil supply of a device is arranged in the titanium alloy housing 1, a titanium alloy corrugated diaphragm 8 is arranged between the titanium alloy housing 1 and the titanium alloy mounting joint 9, the titanium alloy corrugated diaphragm 8 penetrates through the welding layer 13 and is arranged between the titanium alloy housing 1 and the titanium alloy mounting joint 9, an external pressure groove 11 is arranged in the titanium alloy mounting joint 9, and the external pressure groove 11 penetrates through the titanium alloy mounting joint 9, the lower terminal surface of titanium alloy erection joint 9 is equipped with connection interface 10, is equipped with connecting thread on the lateral wall of connection interface 10, realizes the assurance to titanium alloy casing 1 and titanium alloy erection joint 9 junction welding strength through utilizing the triune welding mode, prevents that silicon oil from revealing the phenomenon appears in titanium alloy pressure sensor welding position.
The utility model discloses in, coupling mechanism is including setting up a plurality of mounting grooves 12 in titanium alloy casing 1, mounting groove 12, intercommunication silicon oil pocket 6, runs through being equipped with a plurality of signal output lead wires 5 in the mounting groove 12, and signal output lead wire 5's lower terminal surface electric connection pressure sensor chip 7, and signal output lead wire 5 is equipped with the sealing washer with the interior bottom junction of mounting groove 12.
Oiling mechanism is including setting up oiling groove 4 in titanium alloy casing 1, titanium alloy casing 1 is run through to 4 below oiling grooves, the up end of oiling groove 4 is equipped with the oiling mouth, be equipped with titanium alloy steel ball 3 on the oiling mouth, through setting up titanium alloy steel ball 3 on oiling groove 4 and the oiling groove 4, the sealing washer between mounting groove 12 and the signal output lead 5, realize that titanium alloy pressure sensor carries out the phenomenon that inside silicon oil of inside seal prevention sensor was revealed to titanium alloy pressure sensor in the use, cause the influence to the precision of sensor.
When the utility model is used, as shown in figure 1-2, firstly, the titanium alloy shell 1 is welded and fixed with the titanium alloy mounting joint 9 by a trinity welding technology, the tightness and smoothness of the welding part are ensured, the occurrence of welding seams is prevented, and the leakage of silicon oil is caused, the silicon oil is injected into the joint of the titanium alloy shell 1 and the titanium alloy mounting joint 9 by the oil injection groove 4 in the titanium alloy shell 1, the silicon oil cavity 6 is filled, the upper end oil injection port of the oil injection groove 4 is plugged by the titanium alloy steel ball 3, the signal output lead 5 is electrically connected with the pressure sensor chip 7, the signal output lead 5 passes through the mounting groove 12 in the process, the lower end notch of the mounting groove 12 is sealed by the sealing ring, the leakage of the silicon oil through the mounting groove 12 is prevented, the lower end of the titanium alloy corrugated diaphragm 8 between the titanium alloy shell 1 and the titanium alloy mounting joint 9 is used for sealing the lower end of the silicon oil, and the external pressure groove 11 on the titanium alloy mounting joint 9 is used for balancing the pressure between the titanium alloy shell 1 and the titanium alloy mounting joint 9, and finally the connecting thread on the connecting interface 10 is used for mounting and connecting the device.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a titanium alloy pressure sensor, includes titanium alloy casing (1) and titanium alloy erection joint (9), its characterized in that, be equipped with movable groove (2) in titanium alloy casing (1), be equipped with silicon oil chamber (6) in titanium alloy casing (1), the interior top fixedly connected with pressure sensor chip (7) of silicon oil chamber (6), be equipped with in titanium alloy casing (1) and be used for the coupling mechanism for pressure sensor chip (7) intercommunication circuit, be equipped with welding layer (13) between titanium alloy casing (1) and titanium alloy erection joint (9), be equipped with the oiling mechanism that is used for the controlling means fuel feeding in titanium alloy casing (1), be equipped with titanium alloy ripple diaphragm (8) between titanium alloy casing (1) and titanium alloy erection joint (9).
2. The titanium alloy pressure sensor according to claim 1, wherein the connecting mechanism comprises a plurality of mounting grooves (12) arranged in the titanium alloy shell (1), the mounting grooves (12) are communicated with the silicon oil cavity (6), a plurality of signal output leads (5) penetrate through the mounting grooves (12), the lower end face of each signal output lead (5) is electrically connected with the pressure sensor chip (7), and a sealing ring is arranged at the connection position of each signal output lead (5) and the inner bottom of each mounting groove (12).
3. The titanium alloy pressure sensor according to claim 1, wherein the oil injection mechanism comprises an oil injection groove (4) arranged in the titanium alloy shell (1), the titanium alloy shell (1) penetrates through the lower portion of the oil injection groove (4), an oil injection port is arranged on the upper end face of the oil injection groove (4), and a titanium alloy steel ball (3) is arranged on the oil injection port.
4. A titanium alloy pressure sensor according to claim 1, wherein said titanium alloy corrugated diaphragm (8) is disposed between said titanium alloy housing (1) and said titanium alloy mounting tab (9) through a weld layer (13).
5. A titanium alloy pressure sensor according to claim 1, wherein an external pressure groove (11) is arranged in the titanium alloy mounting joint (9), and the external pressure groove (11) penetrates through the titanium alloy mounting joint (9).
6. The titanium alloy pressure sensor according to claim 1, wherein the lower end face of the titanium alloy mounting joint (9) is provided with a connecting interface (10), and the side wall of the connecting interface (10) is provided with connecting threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023053132.0U CN215262172U (en) | 2020-12-17 | 2020-12-17 | Titanium alloy pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023053132.0U CN215262172U (en) | 2020-12-17 | 2020-12-17 | Titanium alloy pressure sensor |
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| Publication Number | Publication Date |
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| CN215262172U true CN215262172U (en) | 2021-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023053132.0U Active CN215262172U (en) | 2020-12-17 | 2020-12-17 | Titanium alloy pressure sensor |
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| CN (1) | CN215262172U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894371A (en) * | 2022-05-09 | 2022-08-12 | 厦门乃尔电子有限公司 | Differential pressure core |
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2020
- 2020-12-17 CN CN202023053132.0U patent/CN215262172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894371A (en) * | 2022-05-09 | 2022-08-12 | 厦门乃尔电子有限公司 | Differential pressure core |
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