CN207395944U - A kind of one-piece type sensor of new construction pressure and temp - Google Patents
A kind of one-piece type sensor of new construction pressure and temp Download PDFInfo
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- CN207395944U CN207395944U CN201721256229.7U CN201721256229U CN207395944U CN 207395944 U CN207395944 U CN 207395944U CN 201721256229 U CN201721256229 U CN 201721256229U CN 207395944 U CN207395944 U CN 207395944U
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- temperature sensitive
- type film
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- chip varistor
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Abstract
The utility model discloses a kind of one-piece type sensors of new construction pressure and temp of sensor technical field,Including shell,The intracavity bottom of the shell, which is plugged with, threaded draws mouth,It is described draw be provided at the top of mouth band temperature sensitive type film chip varistor,Two groups of chip lead is connected on the pcb board,The other end of chip lead described in two groups is connected at left and right sides of the top with temperature sensitive type film chip varistor,The top surface with temperature sensitive type film chip varistor is covered with silicone protective layer,Ambient temperature measurement circuit is integrated on pcb board,With easy for installation,The operation is stable,Long product lifecycle,Production cost is low,The advantages of small product size is small,Lead with temperature sensitive type film chip varistor is welded using plain conductor with scolding tin,It is welded compared with traditional spun gold or Si-Al wire,With the cost of material is low,Equipment investment is small,Operation difficulty is small,The advantages that maintaining easily.
Description
Technical field
The utility model is related to sensor technical fields, are specially a kind of one-piece type sensor of new construction pressure and temp.
Background technology
At present, global transducer market scale reaches 170,000,000,000 dollars or more, wherein pressure sensor and temperature sensor
Market scale accounts for the 19% and 14% of overall market scale respectively, and is grown continuously and fast with annual more than 20% speed.More
The sensor for arriving pressure, temperature integrated measuring and structure optimization need to be used by carrying out more use occasions.Therefore, pressure temperature is developed
Spend one-piece type new construction sensing utensil significance.
The one-piece type new construction sensor of pressure and temp, for measuring the media such as gas, liquid, fluid under various environment
Pressure, temperature and environment temperature.Pressure, the occasion of temperature survey are needed at present, using independent pressure sensor and temperature
Sensor measures respectively, and there are product cost is high, complicated, volume is big, inconvenient installation, medium temperature data inaccuracy etc. are scarce
Point；Traditional sensor chip lead carries out chip lead using spun gold or Si-Al wire welding, and there are of high cost, equipment investments
Greatly, the shortcomings of inconvenience is safeguarded；Not in chip surface protective mulch, medium temperature is easy to pass through thickness traditional sensor
Stainless steel diaphragm less than 1 millimeter is conducted to sensor internal, causes too high or too low for temperature on pcb board, reduces sensor
Temperature in use section and service life；Traditional electric connector is fixed on the shell using screw thread or screw, the electricity with pcb board
Gas connection is using conducting wire transition, and there are the shortcomings of complicated, of high cost, small product size is larger.It is for this purpose, it is proposed that a kind of new
The one-piece type sensor of structural pressure temperature.
Utility model content
The purpose of this utility model is to provide a kind of one-piece type sensor of new construction pressure and temp, to solve above-mentioned background
The conventional pressure sensor or temperature sensor proposed in technology cannot measure simultaneously pressure and temperature signal, small product size it is big,
Complicated, of high cost, the problem of stability is poor, vibration and shock resistant performance difference etc..
To achieve the above object, the utility model provides following technical solution：A kind of one-piece type biography of new construction pressure and temp
Sensor, including shell, the intracavity bottom of the shell be plugged with it is threaded draw mouth, it is described draw be provided at the top of mouth with temperature sensitive
Type film chip varistor, and it is located at temperature sensitive type film chip varistor the inner cavity of shell, the band temperature sensitive type film chip varistor
Outer wall be welded with PCB mounting bracket of the shape for annular, pcb board is bonded at the top of the PCB mounting brackets, on the pcb board
Two groups of chip lead is connected with, the other end of chip lead is connected to the top with temperature sensitive type film chip varistor described in two groups
At left and right sides of portion, and the both ends of chip lead are respectively welded at by scolding tin on band temperature sensitive type film chip varistor and pcb board,
Covered with silicone protective layer, the top left side of the pcb board is provided with the top surface with temperature sensitive type film chip varistor
Ambient temperature measurement circuit, the inner cavity top of the shell are plugged with electric connector, at left and right sides of the electric connector bottom
Contact pin is plugged on the left and right sides at the top of pcb board respectively.
Preferably, the shell and with temperature sensitive type film chip varistor by way of laser welding with draw mouth fix connect
It connects.
Preferably, it is provided on the pcb board and the matched jack of electric connector.
Preferably, the thickness of the silicone protective layer is 3 millimeters.
Compared with prior art, the beneficial effects of the utility model are：A kind of new construction pressure that the utility model proposes
The one-piece type sensor of temperature, ambient temperature measurement circuit are integrated on pcb board, and there is easy for installation, the operation is stable, product to use
The advantages of long lifespan, production cost are low, small product size is small, the lead with temperature sensitive type film chip varistor are welded using plain conductor
Tin is welded, and is welded compared with traditional spun gold or Si-Al wire, have the cost of material is low, equipment investment is small, operation difficulty is small,
The advantages that maintaining easily, the silicone protective layer used have flexibility, damping action can be played under vibratory impulse environment after curing,
The vibration and shock resistant performance of sensor can be improved；Simultaneously as the flexibility of protective layer, the diaphragm of film chip varistor is not influenced
Normal deformation during compression in temperature change, will not tear chip circuit due to thermal expansion.
Description of the drawings
Fig. 1 is the utility model structure diagram.
In figure：1 draws mouth, 2 band temperature sensitive type film chip varistors, 3PCB mounting brackets, 4PCB plates, 5 silicone protective layers, 6 environment
Temperature measuring circuit, 7 chip leads, 8 electric connectors, 9 shells.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of one-piece type sensor of new construction pressure and temp,
Including shell 9, the intracavity bottom of the shell 9 be plugged with it is threaded draw mouth 1, the top for drawing mouth 1 is provided with temperature sensitive
Type film chip varistor 2, and it is located at temperature sensitive type film chip varistor 2 inner cavity of shell 9, the pressure-sensitive core of band temperature sensitive type film
The outer wall of piece 2 is welded with PCB mounting bracket 3 of the shape for annular, and the top of the PCB mounting brackets 3 is bonded with pcb board 4, described
Two groups of chip lead 7 is connected on pcb board 4, the other end of chip lead 7 described in two groups is connected to band temperature sensitive type film pressure
At left and right sides of the top of quick chip 2, and the both ends of chip lead 7 are respectively welded at the band pressure-sensitive core of temperature sensitive type film by scolding tin
On piece 2 and pcb board 4, the top surface with temperature sensitive type film chip varistor 2 is covered with silicone protective layer 5, the pcb board 4
Top left side be provided with ambient temperature measurement circuit 6, the inner cavity top of the shell 9 is plugged with electric connector 8, described to be electrically connected
It connects the contact pin at left and right sides of 8 bottom of device and is plugged on the 4 top left and right sides of pcb board respectively.
Wherein, the shell 9 and fixed with temperature sensitive type film chip varistor 2 by way of laser welding with drawing mouth 1
Connection, be provided on the pcb board 4 with 8 matched jack of electric connector, the thickness of the silicone protective layer 5 is 3 millimeters.
Operation principle：Mouth 1 will be drawn to be fixed on pressure piping, supply voltage is passed through internal circuit by electric connector 8,
During work, the medium in pipeline is introduced to band temperature sensitive type film chip varistor 2, band temperature sensitive type film chip varistor 2 by drawing mouth 1
Pressure medium, temperature signal are converted into corresponding electric signal, the temperature measurement circuit on pcb board 4 is converted to ambient temperature signal
Corresponding electric signal, electric signal are exported by electric connector 8；
For example, mouth 1 will be drawn on pressure piping, 5~10 volts of DC voltages by electric connector 8 are passed through, work as pressure
During the no pressure input of solenoid road, the elastomer diaphragm with temperature sensitive type film chip varistor 2 does not deform upon, is produced on elastomer
Hui Sideng bridge balances on diaphragm, 2 output voltage of band temperature sensitive type film chip varistor is 0mV, with pressure input and on
It rises, elastic deformation occurs for elastomer diaphragm, is produced on the Hui Sideng electric bridge disequilibrium of elastomer film on piece, band temperature sensitive type film
Chip varistor 2 exports 0~20mV or so the voltage value linear with pressure, realizes the accurate measurement to pressure；Work as pressure
When the temperature of medium changes in pipeline, the resistance for the temperature sensor variation being produced on elastomer is formed and temperature phase
The accurate measurement to pipeline internal medium temperature is realized in corresponding variation, is that the temperature-compensating of pressure sensor or measurement pressure are situated between
Matter temperature provides data；When environment temperature changes, the temperature measurement circuit resistance value being produced on pcb board 4 is formed and temperature phase
The measurement of environment temperature is realized in corresponding variation.
The utility model uses band temperature sensitive type film chip varistor 2 as pressure medium, temperature-measuring element, band temperature sensitive type
For film chip varistor 2 using 17-4PH stainless steels as chip base, integrated circuit is directly produced on the upper table of stainless steel diaphragm
Face, pressure medium act directly on the lower surface of stainless steel diaphragm, since stainless steel has good heat conductivility, integrate
Heat when circuit works can be spread in time, can effectively extend life of product, while Wen Sheng pairs when can effectively reduce work
The adverse effect that precision is brought；Due to the substrate without using silicon as chip, traditional oil-filled or barbola work is not used yet, because
This does not have the temperature characterisitic of silicon semiconductor and without isolation transition material so that and the temperature drift of product is small, and zero point output can reach≤
0.005%FS/ DEG C, the operating temperature range of product is wide, sensor can under -55 DEG C~200 DEG C temperature environments reliably working.
The utility model ambient temperature measurement circuit 6 is integrated on pcb board 4, has easy for installation, the operation is stable, product
The advantages of service life is long, production cost is low, small product size is small, and since the temperature sensitive circuit for being used to measure medium is directly produced on
Stainless steel elastomer film on piece, the temperature in pressure pipeline can be only 0.05 to 1 millimeter of stainless steel elastomer by thickness
Temperature sensitive circuit is directly conducted to, temperature survey does not postpone, and can quickly temperature sensor change.
The lead with temperature sensitive type film chip varistor 2 of the utility model is welded using plain conductor with scolding tin, phase
It is welded for traditional spun gold or Si-Al wire, it is excellent to have that the cost of material is low, equipment investment is small, operation difficulty is small, maintains easily etc.
Point.
The utility model covers the 527 type silica gel of DOW CORNING of one layer of 3 millimeters thick on temperature sensitive type film chip varistor 2
Protective layer can be effectively isolated dust, steam, air, improve product wet-hot aging performance, it is therefore prevented that dust, air are to chip
Damage and oxidation, the long-time stability and service life of product are extended, due to protective layer leading compared with stainless steel base
Hot difference, therefore, the temperature of pipeline internal medium mainly by stainless steel base and are drawn mouth 1 and are spread, it is not easy to it conducts to pcb board 4,
The service life of element and the accuracy of raising ambient temperature measurement circuit 6, the utility model on pcb board 4, which can effectively be extended, to be made
Silicone protective layer 5 has flexibility after curing, can play damping action under vibratory impulse environment, can improve the resistance to of sensor
Vibratory impulse performance；Simultaneously as the flexibility of protective layer, when not influencing the diaphragm compression with temperature sensitive type film chip varistor 2
Normal deformation in temperature change, will not tear chip circuit due to thermal expansion.
Jack is designed on the pcb board 4 of the utility model, the contact pin of electric connector 8 is directly installed on jack, realizes electricity
The fixation and electrical connection of connector 8 compared with traditional mode that conducting wire is needed to transfer, have simple in structure, at low cost, knot
Structure is compact, high reliability.
The survey using NTC 100K types thermo-sensitive resistors and 100k Low Drift Temperatures resistance composition is designed on the PCB of the utility model
Circuit temperature for the measurement of use environment temperature, realizes the independent measurement of medium temperature and use environment temperature, believes for pressure
Number temperature-compensating and medium temperature and environment temperature detection provide accurate data.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of one-piece type sensor of new construction pressure and temp, including shell (9), it is characterised in that：The inner cavity of the shell (9)
Bottom be plugged with it is threaded draw mouth (1), it is described draw band temperature sensitive type film chip varistor (2) is provided at the top of mouth (1), and band
Temperature sensitive type film chip varistor (2) is located at the inner cavity of shell (9), the outer wall welding of the band temperature sensitive type film chip varistor (2)
There is PCB mounting bracket (3) of the shape for annular, pcb board (4), the pcb board (4) are bonded at the top of the PCB mounting brackets (3)
On be connected with two groups of chip lead (7), the other end of chip lead (7) described in two groups be connected to band temperature sensitive type film it is pressure-sensitive
At left and right sides of the top of chip (2), and to be respectively welded at band temperature sensitive type film by scolding tin pressure-sensitive at the both ends of chip lead (7)
On chip (2) and pcb board (4), the top surface of the band temperature sensitive type film chip varistor (2) covered with silicone protective layer (5),
The top left side of the pcb board (4) is provided with ambient temperature measurement circuit (6), and the inner cavity top of the shell (9) is plugged with electricity
Connector (8), the contact pin at left and right sides of electric connector (8) bottom are plugged on the left and right sides at the top of pcb board (4) respectively.
2. a kind of one-piece type sensor of new construction pressure and temp according to claim 1, it is characterised in that：The shell
(9) and with temperature sensitive type film chip varistor (2) it is fixedly connected by way of laser welding with drawing mouth (1).
3. a kind of one-piece type sensor of new construction pressure and temp according to claim 1, it is characterised in that：The pcb board
(4) it is provided on and electric connector (8) matched jack.
4. a kind of one-piece type sensor of new construction pressure and temp according to claim 1, it is characterised in that：The silica gel is protected
The thickness of sheath (5) is 3 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256229.7U CN207395944U (en) | 2017-09-22 | 2017-09-22 | A kind of one-piece type sensor of new construction pressure and temp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721256229.7U CN207395944U (en) | 2017-09-22 | 2017-09-22 | A kind of one-piece type sensor of new construction pressure and temp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207395944U true CN207395944U (en) | 2018-05-22 |
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ID=62404183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721256229.7U Active CN207395944U (en) | 2017-09-22 | 2017-09-22 | A kind of one-piece type sensor of new construction pressure and temp |
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| Country | Link |
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| CN (1) | CN207395944U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646132A (en) * | 2019-10-08 | 2020-01-03 | 松诺盟科技有限公司 | Small-size high-temperature pressure transmitter |
| CN111351607A (en) * | 2019-11-13 | 2020-06-30 | 中国科学院微电子研究所 | Manufacturing method of temperature and pressure composite sensor |
| CN115165171A (en) * | 2022-08-04 | 2022-10-11 | 上海摩仑工业技术有限公司 | Strain gauge type differential pressure sensor with isolated medium |
-
2017
- 2017-09-22 CN CN201721256229.7U patent/CN207395944U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110646132A (en) * | 2019-10-08 | 2020-01-03 | 松诺盟科技有限公司 | Small-size high-temperature pressure transmitter |
| CN111351607A (en) * | 2019-11-13 | 2020-06-30 | 中国科学院微电子研究所 | Manufacturing method of temperature and pressure composite sensor |
| CN111351607B (en) * | 2019-11-13 | 2022-01-11 | 中国科学院微电子研究所 | Manufacturing method of temperature and pressure composite sensor |
| CN115165171A (en) * | 2022-08-04 | 2022-10-11 | 上海摩仑工业技术有限公司 | Strain gauge type differential pressure sensor with isolated medium |
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| GR01 | Patent grant | ||
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Denomination of utility model: A new structure pressure temperature integrated sensor Effective date of registration: 20211008 Granted publication date: 20180522 Pledgee: China Construction Bank Corporation Liuyang sub branch Pledgor: HUNAN QITAI SENSING TECHNOLOGY Co.,Ltd. Registration number: Y2021430000058 |