CN220288672U - Pressure and temperature integrated sensor - Google Patents
Pressure and temperature integrated sensor Download PDFInfo
- Publication number
- CN220288672U CN220288672U CN202321642568.4U CN202321642568U CN220288672U CN 220288672 U CN220288672 U CN 220288672U CN 202321642568 U CN202321642568 U CN 202321642568U CN 220288672 U CN220288672 U CN 220288672U
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- ceramic
- transition piece
- pressure
- shell
- integrated sensor
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- 239000000919 ceramic Substances 0.000 claims abstract description 62
- 230000007704 transition Effects 0.000 claims abstract description 38
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000011521 glass Substances 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 3
- 238000009413 insulation Methods 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 abstract description 3
- 241000218202 Coptis Species 0.000 description 8
- 235000002991 Coptis groenlandica Nutrition 0.000 description 8
- 239000003985 ceramic capacitor Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a pressure and temperature integrated sensor which comprises a shell, wherein an installation seat and a ceramic transition piece are arranged in the shell from top to bottom, a stepped cavity is formed in the middle of the installation seat in a penetrating mode, a ceramic absolute pressure core body is embedded in an upper side step in the cavity, four through holes are formed in the middle of the ceramic transition piece in a penetrating mode, and a thermistor is arranged in the shell below the ceramic transition piece. This device has set up ceramic transition piece in the casing, installs temperature acquisition part alone on ceramic transition piece, does not need to punch the operation on ceramic absolute pressure core for the collection of temperature and the reliability and the precision that pressure was gathered all obtain fine improvement, are equipped with the sealing washer between ceramic transition piece and casing and between ceramic absolute pressure core diapire and mount pad simultaneously, through the design of twice O type circle, can guarantee holistic leakproofness, can reduce the risk that refrigerant or hydrogen slightly revealed.
Description
Technical Field
The utility model belongs to the technical field of sensors for automobiles, and particularly relates to a pressure and temperature integrated sensor.
Background
Along with the rapid development of hydrogen energy automobiles, higher and higher requirements are put forward on a cockpit comfort level and a battery thermal management system, on one hand, the requirements of cold and hot comfort of a human body and the optimal working temperature of a battery pack are met, and on the other hand, the energy consumption is reduced as much as possible, so that the endurance mileage of single charging is increased, and therefore, temperature and pressure temperature sensors are needed to participate in monitoring and management, and along with the increasing maturity of the manufacturing process of the sensors, the sensors for integrally monitoring the temperature and the pressure can be realized.
The sensor structures commonly adopted in the market at present are as follows:
1, adopting MEMS oil filling core design. The advantages are that: mature process, machined structure, high product size precision, and disadvantages: the MEMS is mainly applicable to clean air, needs oil filling, shell machining and laser welding, and has complex process and higher cost;
2, using a ceramic capacitance scheme. The advantages are that: the integrated ceramic pressure core is suitable for all weak corrosive media. Disadvantages: the ceramic capacitor body is required to be perforated with a via hole, a cold coal medium can be contacted with a sealing layer of a ceramic thin sheet and a ceramic thick sheet, the glass sealing layer can not completely seal leakage of the refrigerant medium, compatibility has a certain risk, and meanwhile, the sealing surface area of an O-shaped ring is smaller due to the fact that holes are formed in the ceramic body, and the selected wire diameter is smaller, so that the ceramic capacitor is sealed at a certain risk.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a pressure-temperature integrated sensor with a novel structure, which has a more industrial utility value.
Disclosure of Invention
The utility model aims at: in order to solve the above-mentioned problem, a pressure-temperature integrated sensor is provided.
The technical scheme adopted by the utility model is as follows: the pressure and temperature integrated sensor comprises a shell, wherein an installation seat and a ceramic transition piece are arranged in the shell from top to bottom, a stepped cavity is formed in the middle of the installation seat in a penetrating mode, and a ceramic absolute pressure core body is embedded in an upper side step in the cavity;
four through holes are formed in the middle of the ceramic transition piece in a penetrating manner, a thermistor is arranged in the shell below the ceramic transition piece, and lead ends on the upper side of the thermistor are welded and fixed in the two through holes;
an O-shaped sealing ring is in interference fit between the bottom wall of the ceramic transition piece and the inner wall of the shell.
In a preferred embodiment, a plastic connector is detachably connected to the upper portion of the housing, and a connector is integrally formed at the lower end of the housing.
In a preferred embodiment, a second O-shaped sealing ring is in interference fit between the bottom wall of the ceramic absolute core body and the inner wall of the mounting seat.
In a preferred embodiment, a through hole is formed in the connector in a penetrating manner, a plastic protection column is fixedly arranged on the inner wall of the through hole, a limiting ring is integrally formed at the upper end of the plastic protection column, and the limiting ring is abutted to the inner wall of the shell.
In a preferred embodiment, the underside of the plastic guard post extends to the outer end of the connector, and the bottom of the thermistor is located within the plastic guard post.
In a preferred embodiment, vertical needles are arranged at the upper ends of two sides of the ceramic transition piece, and grooves for allowing the vertical needles to pass through are formed at two ends of the mounting seat;
the ceramic transition piece is internally covered with a gold thread, the lead end on the upper side of the thermistor is electrically connected with the vertical needle through the gold thread, and a layer of glass glaze is coated on the ceramic transition piece above the gold thread.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the utility model, the ceramic transition piece is arranged in the shell, and the temperature acquisition part is independently arranged on the ceramic transition piece, so that punching operation on the ceramic absolute core body is not needed, and the reliability and precision of temperature acquisition and pressure acquisition are improved well.
2. In the utility model, the sealing rings are arranged between the ceramic transition piece and the shell and between the bottom wall of the ceramic absolute pressure core body and the mounting seat, and the design of the two O-shaped rings can ensure the overall tightness and reduce the risk of micro leakage of refrigerant or hydrogen.
Drawings
FIG. 1 is a schematic view of the overall exploded perspective of the present utility model;
FIG. 2 is a schematic diagram of the overall three-dimensional structure of the present utility model;
FIG. 3 is a schematic illustration of the overall cross-sectional plan view of the present utility model;
FIG. 4 is a schematic and schematic perspective view of a ceramic transition piece and thermistor combination according to the present utility model.
The marks in the figure: 1-plastic connector, 2-ceramic absolute core, 3-second O-shaped sealing ring, 4-mount pad, 5-ceramic transition piece, 501-vertical needle, 502-through hole, 503-glass glaze, 6-thermistor, 7-plastic protective column, 8-O-shaped sealing ring, 9-shell and 10-connector.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Referring to fig. 1-4, a pressure temperature integrated sensor, including casing 9, be provided with mount pad 4 and ceramic transition piece 5 from the top down in the casing 9, the cavity of step has been seted up in the middle part of mount pad 4, the embedded ceramic absolute pressure core 2 that is equipped with of upside step in the cavity, four through-holes 502 have been seted up in the middle part of ceramic transition piece 5, be equipped with thermistor 6 in casing 9 below ceramic transition piece 5, the lead wire end welding of thermistor 6 upside is fixed in two through-holes 502, ceramic transition piece 5 has been set up in casing 9, install temperature acquisition part alone on ceramic transition piece 5, can realize temperature and pressure's integrated detection through ceramic absolute pressure core 2 and thermistor 6 that have, do not need to punch the operation again on ceramic absolute pressure core 2 simultaneously, make the reliability and the precision of temperature acquisition and pressure acquisition all obtain fine improvement.
The other two through holes 502 are used for introducing gas to one side of the ceramic absolute core 2, so that the pressure collecting operation is completed.
Referring to fig. 1 and 3, an O-ring 8 is in interference fit with the inner wall of the shell 9 between the bottom wall of the ceramic transition piece 5, a second O-ring 3 is in interference fit with the inner wall of the mounting seat 4 between the bottom wall of the ceramic absolute core 2, and a sealing ring is arranged between the ceramic transition piece 5 and the shell 9 and between the bottom wall of the ceramic absolute core 2 and the mounting seat 4.
In this embodiment, the plastic connector 1 is detachably connected to the upper portion of the housing 9, the connector 10 is integrally formed at the lower end of the housing 9, and the detected signal is transmitted to the vehicle ECU (electronic control) end by combining the plastic connector 1 with the vehicle ECU (electronic control) end.
In this embodiment, the both sides upper end of ceramic transition piece 5 is equipped with erects needle 501, and the recess that satisfies erects needle 501 and pass is seted up at the both ends of mount pad 4, and ceramic transition piece 5 is interior to be covered with the gold thread, and the lead wire end of thermistor 6 upside is connected with erects needle 501 electricity through the gold thread, and the gold thread top has one deck glass glaze 503 on ceramic transition piece 5, sets up the gold thread inside glass glaze 503, can play sealed and guard action to the gold thread through glass glaze.
In this embodiment, the through-hole has been run through in the connector 10, plastic protection post 7 has been set firmly on the through-hole inner wall, plastic protection post 7's upper end integrated into one piece has spacing ring 7, spacing ring 7 butt is on the inner wall of casing 9, plastic protection post 7's downside extends to connector 10's outer end, thermistor 6's bottom is located plastic protection post 7, plastic protection post 7 of addding can protect thermistor 6 can not be blown down and offset position in the runner, can also protect thermistor 6's pad not damaged, thereby improve holistic life.
The outer end of the connector 10 is provided with threads for being mounted on a corresponding detection position.
This device has set up ceramic transition piece 5 in casing 9, install temperature acquisition part alone on ceramic transition piece 5, no longer need carry out the operation of punching on ceramic absolute core 2 for the collection of temperature and pressure acquisition's reliability and precision all obtain fine improvement, are equipped with the sealing washer simultaneously between ceramic transition piece 5 and casing 9 and ceramic absolute core 2 diapire and mount pad 4, through the design of twice O type circle, can guarantee holistic leakproofness, can reduce the risk that refrigerant or hydrogen slightly revealed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (6)
1. Pressure temperature integrated sensor, including casing (9), its characterized in that: the ceramic insulation core body is characterized in that an installation seat (4) and a ceramic transition piece (5) are arranged in the shell (9) from top to bottom, a stepped cavity is formed in the middle of the installation seat (4) in a penetrating mode, and a ceramic insulation core body (2) is embedded in an upper side step in the cavity;
four through holes (502) are formed in the middle of the ceramic transition piece (5) in a penetrating mode, a thermistor (6) is arranged in the shell (9) below the ceramic transition piece (5), and lead ends on the upper side of the thermistor (6) are welded and fixed in the two through holes (502);
an O-shaped sealing ring (8) is in interference fit between the bottom wall of the ceramic transition piece (5) and the inner wall of the shell (9).
2. A pressure and temperature integrated sensor as claimed in claim 1, wherein: the plastic connector (1) can be detachably connected to the upper portion of the shell (9), and a connector (10) is integrally formed at the lower end of the shell (9).
3. A pressure and temperature integrated sensor as claimed in claim 1, wherein: the second O-shaped sealing ring (3) is in interference fit between the bottom wall of the ceramic absolute pressure core body (2) and the inner wall of the mounting seat (4).
4. A pressure and temperature integrated sensor as claimed in claim 2, wherein: the connector (10) is internally provided with a through hole in a penetrating way, the inner wall of the through hole is fixedly provided with a plastic protection column (7), the upper end of the plastic protection column (7) is integrally provided with a limiting ring, and the limiting ring is abutted to the inner wall of the shell (9).
5. A pressure and temperature integrated sensor as claimed in claim 4, wherein: the lower side of the plastic protection column (7) extends to the outer end of the connector (10), and the bottom of the thermistor (6) is positioned in the plastic protection column (7).
6. A pressure and temperature integrated sensor as claimed in claim 1, wherein: vertical needles (501) are arranged at the upper ends of two sides of the ceramic transition piece (5), and grooves which can be penetrated by the vertical needles (501) are formed at two ends of the mounting seat (4);
the ceramic transition piece (5) is internally covered with a gold wire, the lead end at the upper side of the thermistor (6) is electrically connected with the vertical needle (501) through the gold wire, and a layer of glass glaze (503) is coated on the ceramic transition piece (5) above the gold wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321642568.4U CN220288672U (en) | 2023-06-27 | 2023-06-27 | Pressure and temperature integrated sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321642568.4U CN220288672U (en) | 2023-06-27 | 2023-06-27 | Pressure and temperature integrated sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220288672U true CN220288672U (en) | 2024-01-02 |
Family
ID=89342003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321642568.4U Active CN220288672U (en) | 2023-06-27 | 2023-06-27 | Pressure and temperature integrated sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220288672U (en) |
-
2023
- 2023-06-27 CN CN202321642568.4U patent/CN220288672U/en active Active
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