CN205879368U - Pyroelectric infrared sensor - Google Patents
Pyroelectric infrared sensor Download PDFInfo
- Publication number
- CN205879368U CN205879368U CN201620476157.6U CN201620476157U CN205879368U CN 205879368 U CN205879368 U CN 205879368U CN 201620476157 U CN201620476157 U CN 201620476157U CN 205879368 U CN205879368 U CN 205879368U
- Authority
- CN
- China
- Prior art keywords
- shell
- infrared sensor
- field effect
- effect transistor
- pyroelectric infrared
- 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.)
- Expired - Fee Related
Links
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The utility model discloses a pyroelectric infrared sensor, which comprises an outer shell, pin and tube socket, shell and tube socket swing joint, the bottom symmetry of tube socket is equipped with the pin, be equipped with circuit component on the tube socket, the last field effect transistor that is equipped with of circuit component, circuit component electric connection field effect transistor, circuit component's bilateral symmetry is equipped with the support ring, the top of support ring is equipped with the thermoelectric element, thermoelectric element electric connection field effect transistor, the top of thermoelectric element is equipped with the light filter, be equipped with the infrared filtering window on the shell, the top of infrared filtering window is equipped with the annular and shelters from the piece, the annular is sheltered from the piece inboard and is equipped with clear glass. The utility model discloses a set up the infrared filtering window and the piece is sheltered from to the annular on the shell top to and the annular shelters from the inboard clear glass of piece, has reduced external various heat source, the light source disturbs, has set up the filter plate in the shell, outside the infrared that allows some wavelength coverage passes through, can also keep light, sunshine and other infrared outside of the door.
Description
Technical field
This utility model relates to a kind of sensor, particularly to a kind of pyroelectric infrared sensor, belongs to detecting devices technology neck
Territory.
Background technology
Pyroelectric infrared sensor mainly utilizes pyroelectric effect principle to complete the sensing to infra-red radiation, so-called pyroelectric effect
Refer to produce when the electronics in heated object is moved at low temperature electric current or a kind of phenomenon of electric charge accumulation by high temperature.First
First, Fresnel Lenses accepts and assembles the infra-red radiation that object under test discharges；Secondly, pyroelectric infrared sensor is by Fresnel
The infra-red radiation that lens pass over is converted to the signal of telecommunication；Again, signal processing circuit the signal of telecommunication is carried out required process；?
After, warning circuit sends the phenomenons such as alarm sound according to the signal of telecommunication passed over.This pyroelectric infrared sensor is not sent out itself
Any kind of radiation, has device power consumption the least, good concealment, cheap advantage, but this rpyroelectric infrared
Sensor is easily disturbed by various thermals source, light source, affects the application effect of pyroelectric infrared sensor.Existing pyroelectricity is red
Outer sensor, itself only exports a small analogue signal, during use, in addition it is also necessary to external filter amplification circuit coordinates,
Disclosure satisfy that job demand.External filter amplification circuit is more complicated, and volume ratio is relatively big, and external filter amplification circuit is held
It is vulnerable to the interference of external environment, causes output signal unstable, affect signal accuracy.In order to solve with present on problem,
This utility model provides a kind of pyroelectric infrared sensor.
Utility model content
The utility model proposes a kind of pyroelectric infrared sensor, solve pyroelectric infrared sensor easily by various thermals source,
Light source disturbs, and external filter amplification circuit affects the problem of signal accuracy, reduces extraneous various thermal source, light source interference, improves
The precision of signal.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
A kind of pyroelectric infrared sensor, including shell, pin and base, described shell is flexibly connected with described base, institute
The bottom stating base is arranged with described pin, and described base is provided with component, and described component is provided with field effect
Pipe, described component is electrically connected with described field effect transistor, described component be symmetrically arranged on two with support ring, described
The top of pushing out ring is provided with thermoelement, and described thermoelement is electrically connected with described field effect transistor, and the top of described thermoelement sets
Having optical filter, described shell to be provided with infrared filtering window, the top of described infrared filtering window is provided with annular shielding plate, institute
State and be provided with clear glass inside annular shielding plate.
As a kind of optimal technical scheme of the present utility model, the both sides of described shell are provided with catching groove, with described catching groove corresponding position
Described base be provided with profile.
As a kind of optimal technical scheme of the present utility model, it is provided with circular hole with the described base of described pin corresponding position, institute
State the diameter diameter equal to described pin of circular hole.
As a kind of optimal technical scheme of the present utility model, the height of described annular shielding plate is 3-5mm, described clear glass
Thickness be 1mm.
This utility model is reached to provide the benefit that: this utility model is a kind of pyroelectric infrared sensor, by shell
Top arranges the clear glass inside infrared filtering window and annular shielding plate, and annular shielding plate, decreases extraneous various
The impact on pyroelectric infrared sensor of thermal source, light source；Meanwhile, in order to the infra-red radiation of a certain wave-length coverage is had higher
Sensitivity, is provided with filter plate in the enclosure, and this filter plate is in addition to allowing the infra-red radiation of some wave-length coverage and passing through, also
Light, sunlight and other infra-red radiation can be kept outside of the door.It addition, be provided with field effect transistor, field in pyroelectric infrared sensor
Effect pipe has that input resistance is high, noise is little, low in energy consumption, dynamic range is big, be easily integrated, do not have secondary-breakdown phenomenon,
The advantages such as safety operation area field width, it is possible to amplify detectable signal, stable performance, are conducive to improving the precision of signal.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, with this utility model
Embodiment be used for together explaining this utility model, be not intended that restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of a kind of pyroelectric infrared sensor of this utility model；
In figure: 1, shell；2, annular shielding plate；3, infrared filtering window；4, clear glass；5, optical filter；6、
Thermoelement；7, support ring；8, component；9, pin；10, field effect transistor；11, base.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that preferred reality described herein
Execute example be merely to illustrate and explain this utility model, be not used to limit this utility model.
Embodiment 1
As it is shown in figure 1, this utility model provides a kind of pyroelectric infrared sensor, including shell 1, pin 9 and base 11,
Described shell 1 is flexibly connected with described base 11, and the bottom of described base 11 is arranged with described pin 9, described base
11 are provided with component 8, and described component 8 is provided with field effect transistor 10, and described component 8 is electrically connected with described
Field effect transistor 10, described component 8 be symmetrically arranged on two with support ring 7, the top of described support ring 7 be provided with thermoelectricity unit
Part 6, described thermoelement 6 is electrically connected with described field effect transistor 10, and the top of described thermoelement 6 is provided with optical filter 5, institute
Stating shell 1 and be provided with infrared filtering window 3, the top of described infrared filtering window 3 is provided with annular shielding plate 2, described annular
Clear glass 4 it is provided with inside shielding plate 2.
Further, the both sides of described shell 1 are provided with catching groove, are provided with profile with the described base 11 of described catching groove corresponding position,
Make shell be connected with base the most firm, protect pyroelectric infrared sensor internal circuit.
Further, being provided with circular hole with the described base 11 of described pin 9 corresponding position, the diameter of described circular hole is equal to described
The diameter of pin 9, it is simple to shell and the installation of base.
Further, the height of described annular shielding plate 2 is 3-5mm, and the thickness of described clear glass 4 is 1mm, decreases
Extraneous various thermals source, the light source impact on pyroelectric infrared sensor.
This utility model is a kind of pyroelectric infrared sensor, by arranging infrared filtering window and annular is blocked at housing top end
Clear glass inside sheet, and annular shielding plate, decreases extraneous various thermal source, light source to pyroelectric infrared sensor
Impact；Meanwhile, in order to the infra-red radiation of a certain wave-length coverage is had higher sensitivity, it is provided with filter plate in the enclosure, this
Plant filter plate in addition to allowing the infra-red radiation of some wave-length coverage and passing through, moreover it is possible to light, sunlight and other infra-red radiation are refused
Outdoors.It addition, be provided with field effect transistor in pyroelectric infrared sensor, field effect transistor has that input resistance is high, noise is little,
Low in energy consumption, dynamic range is big, be easily integrated, do not have the advantage such as secondary-breakdown phenomenon, safety operation area field width, it is possible to amplify
Detectable signal, stable performance, be conducive to improving the precision of signal.
Finally it is noted that these are only preferred embodiment of the present utility model, it is not limited to this utility model,
Although being described in detail this utility model with reference to previous embodiment, for a person skilled in the art, it depends on
So the technical scheme described in foregoing embodiments can be modified, or wherein portion of techniques feature is carried out equivalent replace
Change.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all should comprise
Within protection domain of the present utility model.
Claims (4)
1. a pyroelectric infrared sensor, including shell (1), pin (9) and base (11), described shell (1) with
Described base (11) is flexibly connected, and the bottom of described base (11) is arranged with described pin (9), it is characterised in that
Described base (11) is provided with component (8), and described component (8) is provided with field effect transistor (10), described electricity
Circuit component (8) is electrically connected with described field effect transistor (10), described component (8) be symmetrically arranged on two with support ring (7),
The top of described support ring (7) is provided with thermoelement (6), and described thermoelement (6) is electrically connected with described field effect transistor (10),
The top of described thermoelement (6) is provided with optical filter (5), and described shell (1) is provided with infrared filtering window (3), institute
The top stating infrared filtering window (3) is provided with annular shielding plate (2), and described annular shielding plate (2) inner side is provided with transparent glass
Glass (4).
A kind of pyroelectric infrared sensor the most according to claim 1, it is characterised in that the both sides of described shell (1)
It is provided with catching groove, is provided with profile with the described base (11) of described catching groove corresponding position.
A kind of pyroelectric infrared sensor the most according to claim 1, it is characterised in that corresponding with described pin (9)
The described base (11) at place is provided with circular hole, and the diameter of described circular hole is equal to the diameter of described pin (9).
A kind of pyroelectric infrared sensor the most according to claim 1, it is characterised in that the height of described annular shielding plate (2)
Degree is 3-5mm, and the thickness of described clear glass (4) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476157.6U CN205879368U (en) | 2016-05-24 | 2016-05-24 | Pyroelectric infrared sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620476157.6U CN205879368U (en) | 2016-05-24 | 2016-05-24 | Pyroelectric infrared sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205879368U true CN205879368U (en) | 2017-01-11 |
Family
ID=57689969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620476157.6U Expired - Fee Related CN205879368U (en) | 2016-05-24 | 2016-05-24 | Pyroelectric infrared sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205879368U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146176A (en) * | 2019-06-21 | 2019-08-20 | 中国人民解放军陆军工程大学 | Infrared sensor |
| 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 |
-
2016
- 2016-05-24 CN CN201620476157.6U patent/CN205879368U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146176A (en) * | 2019-06-21 | 2019-08-20 | 中国人民解放军陆军工程大学 | Infrared sensor |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104251741B (en) | A kind of self adaptation infrared focal plane array reading circuit | |
| US11092479B2 (en) | Sensor assembly and a device comprising such sensor assembly | |
| CN205879368U (en) | Pyroelectric infrared sensor | |
| CN102466522A (en) | Pyroelectric infrared sensor | |
| Blank et al. | Non-imaging digital CMOS-SOI-MEMS uncooled passive infra-red sensing systems | |
| CN102564603A (en) | Pyroelectric infrared sensor | |
| CN203908940U (en) | Explosion-proof infrared gas sensor | |
| JP2007101513A (en) | Infrared sensor | |
| CN203849437U (en) | Optical filter packaging structure of pyroelectric infrared sensor | |
| CN204535858U (en) | A kind of pyroelectric infrared sensor module | |
| JP5663781B2 (en) | Infrared receiver | |
| CN206531583U (en) | 360 degree of sensing pyroelectric infrared sensors | |
| Adrian et al. | Intelligent power management device for street lighting control incorporating long range static and non-static hybrid infrared detection system | |
| CN110146176A (en) | Infrared sensor | |
| CN201903401U (en) | Pyroelectric sensor packaging structure | |
| CN105513261A (en) | Three-wavelength infrared flame detector | |
| JP2011117952A (en) | Electronic device | |
| CN205692319U (en) | A kind of indoor monitoring system based on ZigBee technology | |
| CN207298442U (en) | A kind of LED combination lamps and lanterns based on infrared sensing | |
| CN205537974U (en) | Hand -held type electric wiring thermoscope | |
| CN207558156U (en) | A kind of full visual angle infrared flame detector | |
| CN206649624U (en) | Transaction control system based on infra-red remote control | |
| CN204085703U (en) | A kind of infrared sensor | |
| CN201860387U (en) | Infrared detection alarming video camera | |
| CN206726443U (en) | Micro- disk information processing system of employing wireless transmission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170818 Address after: 523000 Guangdong Province, Dongguan City Zhangmutou Zhangyang Road, Dongguan Shenzhen Jujia Industrial Park H building 3 floor Patentee after: Dongguan City Acer Austrian medical technology Co Ltd Address before: 030006 Taiyuan, Xiaodian District, Shanxi city street, No. 79 Patentee before: Shanxi Province Transport Science Research Institute |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20180524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |