CN216050012U - Temperature and pressure sensor - Google Patents
Temperature and pressure sensor Download PDFInfo
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- CN216050012U CN216050012U CN202121780907.6U CN202121780907U CN216050012U CN 216050012 U CN216050012 U CN 216050012U CN 202121780907 U CN202121780907 U CN 202121780907U CN 216050012 U CN216050012 U CN 216050012U
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Abstract
The utility model discloses a temperature and pressure sensor, and belongs to the technical field of sensors. The temperature and pressure sensor is provided with a pressure cavity from the first end of the first connecting piece to the second end, and the pressure cavity is communicated with the storage piece, so that the temperature and the pressure of a measured medium in the pressure cavity and the storage piece are consistent. The pressure chamber is arranged to enable the first connecting piece to form a temperature intensive structure, and heat is concentrated at the second end of the first connecting piece. And when the pressure in the storage member changes, the second end deforms under the compressive force. Namely, the temperature sensitive element is arranged at the second end of the second connecting piece, so that the non-contact measurement of the temperature and pressure sensitive element and the medium can be realized, and the applicability of the temperature and pressure sensor is improved. The pressure sensing element is arranged at the second end of the second connecting piece, so that non-contact measurement between the pressure sensing element and a measured medium can be realized, and the safety of the temperature and pressure sensor in the measurement process is improved.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a temperature and pressure sensor.
Background
In general, the storage of the hazardous medium needs to be in a certain environment to avoid the hazardous medium from chemical reaction, which causes safety accidents, and therefore, the temperature and pressure changes in the storage member storing the hazardous medium need to be measured.
In the prior art, temperature and pressure sensors are placed in the storage member to measure temperature and pressure changes in the storage member. However, the temperature sensitive elements in the existing temperature and pressure sensors are in direct contact with the hazardous medium and cannot directly measure the temperature in the storage environment of the hazardous medium with corrosive properties. In addition, in the prior art, a ceramic pressure core is mostly adopted as a pressure sensitive element, a temperature sensitive element is electrically connected with the ceramic pressure core through a metal wire, and a contact of the metal wire and the ceramic pressure core is easily influenced by the temperature of use and environment, so that danger is caused.
Therefore, it is desirable to provide a temperature and pressure sensor to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a temperature and pressure sensor, which solves the problems that the existing temperature and pressure sensor cannot detect the storage environment of dangerous media with corrosion property and inflammability and the contact of a metal lead and a ceramic pressure core is easy to explode, and improves the applicability and the safety of the temperature and pressure sensor in the measuring process.
In order to realize the purpose, the following technical scheme is provided:
a temperature and pressure sensor for measuring temperature and pressure changes in a storage member storing a measured medium, comprising:
the first connecting piece comprises a first end and a second end, a pressure cavity is formed from the first end of the first connecting piece to the second end, and the pressure cavity is communicated with the storage piece;
the temperature sensitive element is arranged at the second end of the first connecting piece so as to generate a temperature signal of the second end;
the pressure sensitive element is arranged at the second end of the first connecting piece so as to generate a pressure signal received by the second end;
a sealing assembly sealing the second end of the first connector.
As an alternative to the above temperature and pressure sensor, the seal assembly includes a seal and a second connector, the second connector including a terminal; the temperature and pressure sensor also comprises a circuit board, wherein a circuit is arranged on the circuit board, and the circuit can generate and transmit the pressure signal and the temperature signal; the terminal is electrically connected to the line to output the pressure signal and the temperature signal.
As an alternative to the above temperature and pressure sensor, the circuit includes a conducting wire, and the pressure sensitive elements and the temperature sensitive elements, the number of the pressure sensitive elements is four, and the four pressure sensitive elements are connected through the original plate to form a wheatstone bridge.
As an alternative to the above temperature and pressure sensor, the circuit board includes the element board and the connection board that are electrically connected, and the temperature sensitive element and the four pressure sensitive elements are provided on the element board to form a main body of the line; the connecting plate is provided with a connecting hole, the output end of the circuit is connected with the connecting hole, and the terminal is inserted into the connecting hole so as to realize the electric connection of the circuit and the terminal.
As an alternative to the above temperature and pressure sensor, the sealing member has two open ends, the second end of the first connecting member is connected to the lower open end of the sealing member, a boss is provided at the end of the second connecting member connected to the sealing member, and the upper open end of the sealing member is necked down and restricts the boss from coming off.
As an alternative scheme of the temperature and pressure sensor, one end of the sealing element, away from the second connecting piece, is provided with a yielding groove, and the terminal is arranged in the yielding groove in a penetrating mode.
As an alternative to the above temperature and pressure sensor, an insulating spacer is provided between the circuit board and the second end of the first connector.
As an alternative to the above-mentioned temperature and pressure sensor, the first connecting member is screwed to the storage member.
As an alternative to the above temperature and pressure sensor, a step is provided on the side wall of the first connecting member, and the step can abut against the storage member.
As an alternative to the above temperature and pressure sensor, the first connecting member is a metal member.
Compared with the prior art, the utility model has the beneficial effects that:
the temperature and pressure sensor is provided with a pressure cavity from the first end of the first connecting piece to the second end, and the pressure cavity is communicated with the storage piece, so that the temperature and the pressure in the pressure cavity and the pressure in the storage piece are consistent. The second end of the first connecting piece is provided with a temperature sensitive element and a pressure sensitive element so as to respectively generate a temperature signal and a pressure signal of the second end. The pressure chamber is arranged to enable the first connecting piece to form a temperature intensive structure, and heat is concentrated at the second end of the first connecting piece. And when the pressure in the storage member changes, the second end deforms under the compressive force. Namely, the temperature sensitive element is arranged at the second end of the second connecting piece, so that the non-contact measurement of the temperature sensitive element and the measured medium can be realized, and the applicability of the temperature and pressure sensor is improved. The pressure sensing element is arranged at the second end of the second connecting piece, so that non-contact measurement between the pressure sensing element and a measured medium can be realized, and the safety of the temperature and pressure sensor in the measurement process is improved.
Drawings
FIG. 1 is a cross-sectional view of a temperature and pressure sensor in an embodiment of the present invention;
fig. 2 is an exploded view of the structure of a temperature and pressure sensor in an embodiment of the present invention.
Reference numerals:
1. a first connecting member; 2. a temperature sensitive element; 3. a pressure sensitive element; 4. a seal assembly; 5. a circuit board; 6. an insulating spacer;
11. a first end; 12. a second end; 13. a pressure chamber; 14. a first thread;
41. a seal member; 42. a second connecting member; 421. a yielding groove; 422. a terminal; 423. a boss;
51. an element board; 52. a connecting plate; 521. connecting holes; 53. and (4) conducting wires.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
When the dangerous media are stored, the temperature and the pressure of the storage environment of the working personnel are strictly controlled by the working personnel so as to prevent the dangerous media from generating chemical reaction, so that economic damage is generated, and safety accidents are easy to happen. Therefore, the temperature and pressure sensors are commonly used by workers to measure the environment in which the hazardous medium is stored, so that the hazardous medium is in a safe and stable environment for a long time to reduce the reactivity of the hazardous medium.
As shown in fig. 1-2, the present embodiment provides a temperature and pressure sensor for measuring the temperature and pressure in a storage member storing a measured medium. The temperature and pressure sensor includes a first connector 1, a temperature sensitive element 2, a pressure sensitive element 3, and a sealing assembly 4. The first connecting piece 1 comprises a first end 11 and a second end 12, a pressure chamber 13 is arranged from the first end 11 of the first connecting piece 1 to the second end 12, and the pressure chamber 13 is communicated with the storage piece, so that the temperature and the pressure in the pressure chamber 13 are consistent with those in the storage piece. The temperature sensitive element 2 is arranged at the second end 12 of the first connector 1 to generate a temperature signal of the second end 12. The pressure chamber 13 is arranged to enable the first connecting part 1 to form a temperature intensive structure, heat in the pressure chamber 13 is concentrated at the second end 12 of the first connecting part 1, and the temperature sensing element 2 is arranged to improve the accuracy of temperature detection. The pressure sensitive element 3 is arranged at the second end 12 of the first connector 1 to generate a pressure signal to which the second end 12 is subjected. When the pressure in the storage member changes, the wall of the pressure chamber 13 deforms, so that the pressure sensitive element 3 is subjected to a compressive force. I.e. when the pressure sensitive element 3 generates a pressure signal, this indicates that the pressure in the storage element starts to change. The temperature sensing element 2 and the pressure sensing element 3 are not in direct contact with the measured medium due to the arrangement, so that the temperature and pressure sensor can conveniently measure the environment for storing the corrosive and flammable measured medium, and the applicability of the temperature and pressure sensor is improved. Meanwhile, the temperature and pressure sensor is connected with the first connecting piece 1 only through the pressure cavity 13, so that the sealing performance of the joint of the temperature and pressure sensor and the first connecting piece 1 is improved, and the escape of a measured medium is effectively avoided. And the sealing component 4 seals the second end 12 of the first connecting piece 1, so that the temperature and pressure sensor is a sealing structure, even if the measured medium escapes from the joint of the temperature and pressure sensor and the first connecting piece 1, the temperature sensitive element 2 and the pressure sensitive element 3 cannot be adversely affected, and the safety in the measuring process is improved.
Optionally, a step is arranged on the side wall of the first connecting member 1, and the step can abut against the storage member, so that the flow path of the measured medium at the joint of the first connecting member 1 and the temperature and pressure sensor is tortuous, and the possibility of escape of the measured medium is reduced. Further optionally, a sealing gasket is arranged between the step and the storage member, so that the sealing performance of the first connecting member 1 when connected with the storage member can be further improved.
Optionally, the first connecting member 1 is connected with the storage member by screw threads, so that the detachable connection of the temperature and pressure sensor and the first connecting member 1 is realized, and the temperature and pressure sensor can be used repeatedly. Specifically, a threaded hole is formed in the storage part, and a first thread 14 matched with the threaded hole is formed in the outer wall of the connecting part of the first connecting part 1 and the storage part, so that threaded connection between the first connecting part 1 and the storage part is achieved.
Specifically, the first connecting member 1 is a metal member. The metal material has good thermal conductivity and ductility, so that the accuracy of the temperature and pressure sensor in measurement is improved.
Optionally, the first connecting piece 1 is of an integrally formed structure, so that on one hand, the manufacturing process of the first connecting piece 1 is reduced, and the manufacturing efficiency of the first connecting piece 1 is improved; on the other hand, the gap generated by a combined structure is avoided, and the possibility of the escape of the measured medium is reduced.
Optionally, a corrosion-proof layer is disposed on the cavity wall of the pressure cavity 13, so as to prevent the measured medium with corrosion characteristics from corroding the cavity wall of the pressure cavity 13.
Optionally, the sealing assembly 4 comprises a sealing member 41 and a second connector 42, the second connector 42 comprising a terminal 422; the temperature and pressure sensor further comprises a circuit board 5, wherein a circuit is arranged on the circuit board 5, the circuit can transmit pressure signals and temperature signals, and the terminal 422 is electrically connected with the circuit to output the pressure signals and the temperature signals. Further alternatively, the circuit comprises a lead 53, four pressure-sensitive elements 3 and four temperature-sensitive elements 2, wherein the four pressure-sensitive elements 3 are connected through the lead 53 to form a wheatstone bridge, so as to form a circuit for transmitting temperature signals and pressure signals. And the wheatstone bridge arrangement improves the accuracy of the measurement results.
Specifically, the circuit board 5 includes an element board 51 and a connection board 52 that are electrically connected, and the temperature sensitive element 2 and the four pressure sensitive elements 3 are connected to the element board 51 to form a main body of a wiring. The connecting plate 52 is provided with a connecting hole 521, the output end of the line is connected with the connecting hole 521, and the terminal 422 is inserted into the connecting hole 521, so as to realize the electrical connection between the line and the terminal 422. In the present embodiment, the specific structure of the terminal 422 is prior art and will not be described herein.
In order to facilitate the staff to observe the temperature and pressure changes in the storage element, the terminal 422 of the temperature and pressure sensor should be connected to an external processor to process the output temperature signal and pressure signal to obtain specific values. Further optionally, one end of the second connecting member 42 away from the sealing member 41 is provided with a yielding groove 421, and the terminal 422 is inserted into the yielding groove 421. The provision of the relief groove 421 leaves a sufficient space for the terminal 422 to be connected to an external processor.
Further optionally, the sealing member 41 has two openings at two ends, and the second end 12 of the first connecting member 1 is detachably connected to the lower opening of the sealing member 41, so that the circuit board 5 at the second end 12 of the first connecting member 1 and the electronic components on the circuit board 5 can be replaced or repaired by a worker. The end of the second connection member 42 connected to the sealing member 41 is provided with a projection 423, and the upper end of the sealing member 41 is opened and contracted and the projection 423 is restricted from being removed, thereby preventing the sealing member 41 from being separated from the second connection member 42.
Because the first connecting piece 1 is made of metal material, and the metal material has the characteristic of easy conduction, when the circuit board 5 leaks electricity, the surface of the first connecting piece 1 is fully covered with electric ions, and safety accidents are easily caused. Therefore, it is further optional to provide an insulating spacer 6 between the circuit board 5 and the second end 12 of the first connector 1.
It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A temperature and pressure sensor for measuring temperature and pressure changes in a storage member storing a measured medium, comprising:
the first connecting piece (1) comprises a first end (11) and a second end (12), a pressure cavity (13) is formed from the first end (11) of the first connecting piece (1) to the second end (12), and the pressure cavity (13) is communicated with the storage piece;
a temperature sensitive element (2) arranged at the second end (12) of the first connector (1) to generate a temperature signal at the second end (12);
the pressure sensitive element (3) is arranged at the second end (12) of the first connecting piece (1) to generate a pressure signal received by the second end (12);
a sealing assembly (4) sealing the second end (12) of the first connector (1).
2. The temperature and pressure sensor according to claim 1, characterized in that the sealing assembly (4) comprises a seal (41) and a second connection (42), the second connection (42) comprising a terminal (422); the temperature and pressure sensor further comprises a circuit board (5), wherein a circuit is arranged on the circuit board (5), and the circuit can adjust and transmit the pressure signal and the temperature signal; the terminal (422) is electrically connected to the line to output the pressure signal and the temperature signal.
3. The temperature and pressure sensor according to claim 2, wherein the circuit comprises a wire (53) and the pressure sensitive elements (3) and the temperature sensitive element (2), the number of the pressure sensitive elements (3) is four, and the four pressure sensitive elements (3) are connected on an element plate (51) through the wire (53) to form a Wheatstone bridge.
4. A temperature and pressure sensor according to claim 3, characterized in that said circuit board (5) comprises said element board (51) and a connection board (52) electrically connected, said temperature sensitive element (2) and four said pressure sensitive elements (3) being connected to said element board (51) to form the body of said circuit; the connecting plate (52) is provided with a connecting hole (521), the output end of the line is connected with the connecting hole (521), and the terminal (422) is inserted into the connecting hole (521) so as to realize the electric connection between the line and the terminal (422).
5. The temperature and pressure sensor according to claim 2, wherein the sealing member (41) has two open ends, the second end (12) of the first connecting member (1) is connected to the lower open end of the sealing member (41), the end of the second connecting member (42) connected to the sealing member (41) is provided with a boss (423), the upper open end of the sealing member (41) is necked down and the boss (423) is restricted from coming out.
6. The temperature and pressure sensor according to claim 5, wherein a yielding groove (421) is formed at one end of the second connecting piece (42) far away from the sealing piece (41), and the terminal (422) is arranged in the yielding groove (421) in a penetrating manner.
7. Temperature and pressure sensor according to claim 2, characterized in that an insulating gasket (6) is provided between the circuit board (5) and the second end (12) of the first connector (1).
8. Temperature and pressure sensor according to claim 1, characterized in that the first connection piece (1) is screwed to the storage piece.
9. Temperature and pressure sensor according to claim 1, characterized in that the side wall of the first connecting piece (1) is provided with a step which can abut against the storage piece.
10. Temperature and pressure sensor according to claim 1, characterized in that the first connection element (1) is a metal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121780907.6U CN216050012U (en) | 2021-08-02 | 2021-08-02 | Temperature and pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121780907.6U CN216050012U (en) | 2021-08-02 | 2021-08-02 | Temperature and pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216050012U true CN216050012U (en) | 2022-03-15 |
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ID=80618766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121780907.6U Active CN216050012U (en) | 2021-08-02 | 2021-08-02 | Temperature and pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216050012U (en) |
-
2021
- 2021-08-02 CN CN202121780907.6U patent/CN216050012U/en active Active
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