CN110146176A - Infrared sensor - Google Patents
Infrared sensor Download PDFInfo
- Publication number
- CN110146176A CN110146176A CN201910539903.XA CN201910539903A CN110146176A CN 110146176 A CN110146176 A CN 110146176A CN 201910539903 A CN201910539903 A CN 201910539903A CN 110146176 A CN110146176 A CN 110146176A
- Authority
- CN
- China
- Prior art keywords
- shell
- infrared sensor
- transparent glass
- effect tube
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005669 field effect Effects 0.000 claims abstract description 19
- 239000011521 glass Substances 0.000 claims abstract description 17
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 12
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 12
- 239000002274 desiccant Substances 0.000 claims abstract description 6
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 238000001914 filtration Methods 0.000 claims 1
- 230000005855 radiation Effects 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/04—Casings
- G01J5/041—Mountings in enclosures or in a particular environment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention discloses an infrared sensor, which comprises a sensor body, transparent glass, epoxy resin glue, an optical filter, a connecting pin, a circuit element, a field effect tube, a sensor body, a base and a shell, wherein the top end of the shell is provided with the optical filter and the transparent glass, so that the influence of various external heat sources and light sources on a pyroelectric infrared sensor is reduced; meanwhile, in order to have higher sensitivity to infrared radiation in a certain wavelength range, a filter is arranged in the shell, and the filter not only allows infrared radiation in certain wavelength range to pass, but also can reject light, sunlight and other infrared radiation. In addition, the field effect tube is arranged in the shell, has the advantages of high input resistance, low noise, low power consumption, large dynamic range, easiness in integration, no secondary breakdown phenomenon, wide safe working area and the like, can amplify detection signals, is stable in performance and beneficial to improving the precision of the signals, and the drying agent arranged in the shell can prevent the humidity in the shell and prolong the service life of the product.
Description
Technical field
The present invention relates to sensor technical fields, more particularly to a kind of infrared sensor.
Background technique
Infra-red sensing system is with infrared ray be medium measuring system, can be divided into five classes according to function, by detection mechanism
It can be divided into as photon detector and thermal detector.Infrared electronic technology obtains in fields such as modern science and technology, national defence and industrial or agricultural
It obtained and was widely applied, and infrared sensor was installed to control the switch of LED in existing LED light, infrared sensor is by detection
The infrared ray of human-body emitting and work, infrared sensor is difficult to moisture-proof at present, since cost is relatively low for infrared sensor, is caused existing
Moisture-proof be also not is taken much count of in many producers, it is shorter so as to cause service life, although it is at low cost, and be easy by various heat
Source, light source interference influence the application effect of pyroelectric infrared sensor but influence whole production because of infrared sensor damage,
It would therefore be highly desirable to which a kind of improved technology solves the problems, such as this in the presence of the prior art.
Summary of the invention
The present invention is to solve disadvantage present in current background technique, provides a kind of infrared sensor, including sensor
Ontology, further include transparent glass, epoxide-resin glue, optical filter, connection pin, circuit element, field-effect tube, sensor body,
Pedestal and shell, the lower section of the shell are equipped with pedestal, and the both ends of the pedestal, which are equipped with, connects pin, under the connection pin
End is set to the lower section of pedestal, and base upper surface is through to above the connection pin and is set to interior of shell, in the shell
Portion is equipped with field-effect tube and sensor body, is connected to circuit element above the connection pin, the circuit element it is upper
Side is connected to field-effect tube, sensor body is connected to above the field-effect tube, the upper surface of the sensor body is not
The upper surface of shell is contacted, the upper surface both ends of the shell are equipped with epoxide-resin glue, and the both ends of the optical filter are connected to ring
Oxygen resin glue is removably connected with transparent glass above the optical filter.
Of the invention is further described, the length of the epoxide-resin glue and the length of shell are identical.
Of the invention is further described, the pedestal is structure as a whole with shell can effective waterproof.
Of the invention is further described, the length of the transparent glass is less than the length of optical filter.
Of the invention is further described, the interior of shell is placed with desiccant.
Of the invention is further described, the transparent glass with a thickness of 1-3mm.
Of the invention is further described, the pedestal of the connection pin corresponding position is equipped with circular hole, the circular hole
Diameter be equal to it is described connection pin diameter.
By adopting the above technical scheme, it has the following beneficial effects:
The present invention reduces extraneous various heat sources, light source to heat by the way that optical filter and transparent glass is arranged in housing top end
Release the influence of electric infrared sensor；Meanwhile in order to which the infra-red radiation to a certain wave-length coverage has higher sensitivity, set inside the shell
Set filter plate, this filter plate is other than allowing the infra-red radiation of certain wave-length coverages to pass through, moreover it is possible to by light, sunlight and its
Its infra-red radiation is kept outside of the door.In addition, being equipped with field-effect tube in shell, field-effect tube is high with input resistance, noise is small, power consumption
Low, dynamic range is big, be easily integrated, without secondary-breakdown phenomenon, safety operation area field width the advantages that, detection letter can be amplified
Number, performance is stablized, and the precision for improving signal is conducive to, and the desiccant that interior of shell is equipped with can prevent the humidity of interior of shell,
Improve the service life of this product.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
In figure: 1- transparent glass；2- epoxide-resin glue；3- optical filter；4- connection pin；5- circuit element；6- field-effect
Pipe；7- sensor body；8- pedestal；9- shell.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Embodiment 1: a kind of infrared sensor as shown in Figure 1, including sensor body 7, further include transparent glass 1, ring
Oxygen resin glue 2, optical filter 3, connection pin 4, circuit element 5, field-effect tube 6, sensor body 7, pedestal 8 and shell 9, it is described
The lower section of shell 9 is equipped with pedestal 8, and the both ends of the pedestal 8 are equipped with connection pin 4, and the lower end of the connection pin 4 is set to pedestal
The top of 8 lower section, the connection pin 4 is through to 8 upper surface of pedestal and is set to inside shell 9, is equipped with inside the shell 9
The top of field-effect tube 6 and sensor body 7, the connection pin 4 is connected to circuit element 5, the top of the circuit element 5
It is connected to field-effect tube 6, the top of the field-effect tube 6 is connected to sensor body 7, the upper surface of the sensor body 7
The upper surface of shell 9 is not contacted, and the upper surface both ends of the shell 9 are equipped with epoxide-resin glue 2, and the both ends of the optical filter 3 connect
It is connected to epoxide-resin glue 2, the top of the optical filter 3 is removably connected with transparent glass 1, the length of the epoxide-resin glue 2
It is identical as the length of shell 9, the pedestal 8 and shell 9 be structure as a whole can effective waterproof, the length of the transparent glass 1 is small
Be placed with desiccant inside the length of optical filter 3, the shell 9, the transparent glass 1 with a thickness of 1-3mm, the connection
The pedestal 8 of pin corresponding position is equipped with circular hole, and the diameter of the circular hole is equal to the diameter of the connection pin 4.
The present invention reduces extraneous various heat sources, light source pair by the way that optical filter 3 and transparent glass 1 is arranged on 9 top of shell
The influence of pyroelectric infrared sensor；Meanwhile in order to which the infra-red radiation to a certain wave-length coverage has higher sensitivity, in shell 9
Interior to be provided with filter plate, this filter plate is other than allowing the infra-red radiation of certain wave-length coverages to pass through, moreover it is possible to by light, sunlight
It keeps outside of the door with other infra-red radiations.In addition, being equipped with field-effect tube 6 in shell 9, field-effect tube 6 has input resistance height, noise
Small, low in energy consumption, dynamic range is big, be easily integrated, without secondary-breakdown phenomenon, safety operation area field width the advantages that, can amplify
Detectable signal, performance are stablized, and the precision for improving signal is conducive to, and the desiccant being equipped with inside shell 9 can prevent inside shell 9
Humidity, improve the service life of this product.
The foregoing describe basic principles and main features of the invention, It should be understood by those skilled in the art that of the invention
It is not restricted to the described embodiments, the above embodiments and description only illustrate the principle of the present invention, is not departing from
Under the premise of spirit and scope of the invention, various changes and improvements may be made to the invention, these changes and improvements both fall within requirement
In the scope of the invention of protection, invents claimed range and be defined by the appending claims and its equivalent thereof.
Claims (7)
1. a kind of infrared sensor, including sensor body, which is characterized in that further include transparent glass, epoxide-resin glue, optical filtering
Piece, connection pin, circuit element, field-effect tube, sensor body, pedestal and shell, the lower section of the shell are equipped with pedestal, institute
The both ends for stating pedestal are equipped with connection pin, and the lower end of the connection pin is set to the lower section of pedestal, the top of the connection pin
It is through to base upper surface and is set to interior of shell, the interior of shell is equipped with field-effect tube and sensor body, the connection
It is connected to circuit element above pin, field-effect tube, the top of the field-effect tube are connected to above the circuit element
It is connected to sensor body, the upper surface of the sensor body does not contact the upper surface of shell, the upper surface two of the shell
End is equipped with epoxide-resin glue, and the both ends of the optical filter are connected to epoxide-resin glue, are detachably connected above the optical filter
There is transparent glass.
2. a kind of infrared sensor according to claim 1, which is characterized in that the length of the also described epoxide-resin glue and outer
The length of shell is identical.
3. a kind of infrared sensor according to claim 1, which is characterized in that the pedestal is structure as a whole with shell can
Effective waterproof.
4. a kind of infrared sensor according to claim 1, which is characterized in that the length of the transparent glass, which is less than, to filter
The length of piece.
5. a kind of infrared sensor according to claim 1, which is characterized in that the interior of shell is placed with desiccant.
6. a kind of infrared sensor according to claim 1, which is characterized in that the transparent glass with a thickness of 1-3mm.
7. a kind of infrared sensor according to claim 1, which is characterized in that the bottom of the connection pin corresponding position
Seat is equipped with circular hole, and the diameter of the circular hole is equal to the diameter of the connection pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539903.XA CN110146176A (en) | 2019-06-21 | 2019-06-21 | Infrared sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910539903.XA CN110146176A (en) | 2019-06-21 | 2019-06-21 | Infrared sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110146176A true CN110146176A (en) | 2019-08-20 |
Family
ID=67596157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910539903.XA Pending CN110146176A (en) | 2019-06-21 | 2019-06-21 | Infrared sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110146176A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815808A (en) * | 2020-05-29 | 2020-10-23 | 欧菲微电子技术有限公司 | Distance sensor, intelligent lock and control method of intelligent lock |
| WO2022166587A1 (en) * | 2021-02-05 | 2022-08-11 | 合肥市芯海电子科技有限公司 | Infrared temperature sensor and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391875A (en) * | 1990-07-18 | 1995-02-21 | Raytheon Company | Infrared sensor package |
| US20040178344A1 (en) * | 2002-06-25 | 2004-09-16 | Ryo Taniguchi | Infrared sensor package |
| CN203910826U (en) * | 2014-05-06 | 2014-10-29 | 深圳莱特光电有限公司 | Infrared ray sensor |
| CN205879368U (en) * | 2016-05-24 | 2017-01-11 | 山西省交通科学研究院 | Pyroelectric infrared sensor |
-
2019
- 2019-06-21 CN CN201910539903.XA patent/CN110146176A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391875A (en) * | 1990-07-18 | 1995-02-21 | Raytheon Company | Infrared sensor package |
| US20040178344A1 (en) * | 2002-06-25 | 2004-09-16 | Ryo Taniguchi | Infrared sensor package |
| CN203910826U (en) * | 2014-05-06 | 2014-10-29 | 深圳莱特光电有限公司 | Infrared ray sensor |
| CN205879368U (en) * | 2016-05-24 | 2017-01-11 | 山西省交通科学研究院 | Pyroelectric infrared sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815808A (en) * | 2020-05-29 | 2020-10-23 | 欧菲微电子技术有限公司 | Distance sensor, intelligent lock and control method of intelligent lock |
| WO2022166587A1 (en) * | 2021-02-05 | 2022-08-11 | 合肥市芯海电子科技有限公司 | Infrared temperature sensor and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190820 |
|
| RJ01 | Rejection of invention patent application after publication |