CN207557059U - A kind of miniature PM2.5 laser sensors - Google Patents
A kind of miniature PM2.5 laser sensors Download PDFInfo
- Publication number
- CN207557059U CN207557059U CN201721710671.2U CN201721710671U CN207557059U CN 207557059 U CN207557059 U CN 207557059U CN 201721710671 U CN201721710671 U CN 201721710671U CN 207557059 U CN207557059 U CN 207557059U
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- China
- Prior art keywords
- housing
- miniature
- laser
- air inlet
- circuit board
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Abstract
The utility model discloses a kind of miniature PM2.5 laser sensors, including：Housing, laser tube, photodetector and the control circuit board being arranged in housing, the laser tube and the photodetector are connect with the control circuit board；It is characterized in that, air inlet equipped with face and gas outlet on the housing, mirror is additionally provided in the housing, the line between the air inlet and the gas outlet sends out beam orthogonal with the laser tube, and the light beam enters dead angle after mirror reflection.For the utility model without traditional fan assembly, aerial active mobile shell can cause gas to enter cavity ventilation, simple in structure, effectively reduce the volume of PM2.5 laser sensors, can be fully immersed into the portable equipments such as mobile phone, wrist-watch.
Description
Technical field
The utility model is related to sensor technical field more particularly to a kind of PM2.5 detection sensors.
Background technology
PM2.5 laser sensors are that a kind of generated using laser beam irradiation air scatters light, pass through silicon light pipe or photoelectricity
The detection in pond, so that it is determined that inside air impurity and the device of particulate matter size.Existing PM2.5 sensors are required for fan by wind
Test cavity is blown into air, the size of this fan determines the size of PM2.5 sensors, leads to existing size dimension
It is poor that PM2.5 laser sensors can not easily enter such as mobile phone, wrist-watch and Wearable product, portability.
Invention content
For defect in the prior art, the purpose of this utility model is to provide it is a kind of it is simple in structure, small,
The PM2.5 laser sensors easy to carry used.
To achieve the above objectives, the utility model adopts the following technical solution.
A kind of miniature PM2.5 laser sensors, including：Housing, laser tube, photodetector and the control being arranged in housing
Circuit board processed, the laser tube and the photodetector are connect with the control circuit board；It is characterized in that, in the housing
Air inlet and the gas outlet of face are equipped with, mirror is additionally provided in the housing, between the air inlet and the gas outlet
Line and the laser tube send out beam orthogonal, the light beam enters dead angle after mirror reflection.
As a further illustration of the above scheme, the housing is in strip, the laser tube is arranged on the housing
One end, the air inlet and the gas outlet are arranged on the other end of the housing.
As a further illustration of the above scheme, transom window is equipped on the air inlet and the gas outlet.
As a further illustration of the above scheme, shock sensor is connected in the control circuit board, the transom window
It is driven by the stepper motor being connect with the control circuit board, the letter that the control circuit board is fed back according to the shock sensor
Number control stepper motor work, realizes the keying of the transom window.
As a further illustration of the above scheme, the mirror is made of the two sides of mutual angle in 90 °, the light beam is two
It is antiparallel under the reflection of face mirror to turn back.
As a further illustration of the above scheme, the dead angle is made of the impermeable baffle plate being arranged in the housing.
The beneficial effects of the utility model are：
First, by setting air inlet, the gas outlet of face, and laser beam is reflected into dead angle using mirror, without passing
The fan assembly of system, aerial active mobile shell can cause gas to enter cavity ventilation, simple in structure, effectively reduce
The volume of PM2.5 laser sensors can be fully immersed into the portable equipments such as mobile phone, wrist-watch.
2nd, by setting transom window and shock sensor, during work, laser tube, transom window automatic shutter, effectively reduce extraneous
Optical noise, save energy consumption.
Description of the drawings
Fig. 1 show PM2.5 laser sensors structure diagram provided by the utility model.
Fig. 2 show the vertical view of Fig. 1.
Fig. 3 show the side view of Fig. 1.
Specific embodiment
In the description of the present invention, it should be noted that for the noun of locality, if any term " " center ", " transverse direction ",
" longitudinal direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ",
The indicating positions such as " bottom ", " interior ", " outer ", " clockwise ", " counterclockwise " and position relationship are based on orientation shown in the drawings or position
Relationship is put, be for only for ease of narration the utility model and simplifies description rather than instruction or implies signified device or element
There must be specific orientation, construct and operate with particular orientation, it is impossible to be interpreted as the specific protection model of limitation the utility model
It encloses.
In the utility model, except as otherwise clear stipulaties and restriction, if any term " assembling ", " connected ", " connection " term
It should go to understand as broad sense, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can also be machine
Tool connects；It can be directly connected or be connected by intermediary, can be connected inside two elements.For
For those of ordinary skill in the art, it can understand that specific in the utility model of above-mentioned term containing as the case may be
Justice.
In utility model, unless otherwise prescribed and limit, fisrt feature second feature it " on " or it " under " can be with
It is in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include fisrt feature and second feature
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " under " and " above " including fisrt feature
Right over second feature and oblique upper or be only to represent that fisrt feature level height is higher than the height of second feature.First
Feature second feature " on ", " under " and " below " including fisrt feature immediately below second feature or obliquely downward or only
Only represent that fisrt feature level height is less than second feature.
With reference to the attached drawing of specification, by being further described to specific embodiment of the present utility model, make
The technical solution of the utility model and advantage are clearer, clear and definite.It is to show to describe embodiment below with reference to attached drawing
Example property, it is intended to explain the utility model, and it is not intended that limitation to the utility model.
As shown in Figure 1-Figure 3, a kind of miniature PM2.5 laser sensors, including：Housing 1, the laser being arranged in housing 1
Pipe 2, photodetector 3 and control circuit board 4, the laser tube 2 and the photodetector 3 connect with the control circuit board 4
It connects；It is characterized in that, being equipped with the air inlet 5 of face and gas outlet 6 on the housing 1, mirror is additionally provided in the housing 1
7, the line between the air inlet 5 and the gas outlet 6 sends out that light beam 8 is vertical, and the light beam 8 is through institute with the laser tube 2
It states after mirror 7 reflects and enters dead angle 9.
Wherein, the housing 1 is in strip, and the laser tube 2 is arranged on one end of the housing 1,5 He of air inlet
The gas outlet 6 is arranged on the other end of the housing 1.In use, the hand-held housing, which shake back and forth, can make the external world
Air enters in housing, simple in structure, small without fan.
The mirror 7 is made of the two sides of mutual angle in 90 °, and the light beam 8 is antiparallel under the reflection of two sides mirror 7
It turns back.The dead angle 9 is made of the impermeable baffle plate being arranged in the housing 1.
Further, transom window is equipped on the air inlet 5 and the gas outlet 6, is connected in the control circuit board 4
There is shock sensor, the transom window is driven by the stepper motor being connect with the control circuit board 4.When housing 1 shakes, vibrations
Sensor detects variation and opens transom window in this, as signal；After vibration signal stopping, the transom window of product is automatically closed, and swashs
Light pipe is just opened.Extraneous optical noise can be reduced in this way, while reduces energy loss, improve the time between product charge and discharge
Interval.Concrete structure as stepper motor driving transom window opening is routine techniques, for example, setting sector on transom window, is walked
Stepper motor is driven by drive gear and fan-shaped tooth engagement, is no longer described in detail here.
A kind of miniature PM2.5 laser sensors provided in this embodiment, by setting air inlet, the gas outlet of face, and
Laser beam is reflected into dead angle using mirror, without traditional fan assembly, effectively reduces the body of PM2.5 laser sensors
Product, can be fully immersed into the portable equipments such as mobile phone, wrist-watch.Meanwhile by setting transom window and shock sensor, during work, laser
The automatic shutter of pipe, transom window effectively reduces extraneous optical noise, saves energy consumption.
From the foregoing description of structures and principles it should be understood by those skilled in the art that, the utility model
Above-mentioned specific embodiment is not limited to, it is equal using the improvement of techniques well known and replacement on the basis of the utility model
It falls in the scope of protection of the utility model, the scope of protection of the utility model should be limited by each claim and its equivalent
It.
Claims (6)
1. a kind of miniature PM2.5 laser sensors, including：Housing, laser tube, photodetector and the control being arranged in housing
Circuit board, the laser tube and the photodetector are connect with the control circuit board；It is characterized in that, on the housing
Air inlet and gas outlet equipped with face are additionally provided with mirror, between the air inlet and the gas outlet in the housing
Line sends out beam orthogonal with the laser tube, and the light beam enters dead angle after mirror reflection.
2. a kind of miniature PM2.5 laser sensors according to claim 1, which is characterized in that the housing is in strip,
The laser tube is arranged on one end of the housing, and the air inlet and the gas outlet are arranged on the other end of the housing.
3. a kind of miniature PM2.5 laser sensors according to claim 1, which is characterized in that in the air inlet and institute
Gas outlet is stated equipped with transom window.
4. a kind of miniature PM2.5 laser sensors according to claim 3, which is characterized in that in the control circuit board
On be connected with shock sensor, the transom window is driven by the stepper motor being connect with the control circuit board, the control circuit
Plate controls the stepper motor to work according to the signal that the shock sensor is fed back, and realizes the keying of the transom window.
5. a kind of miniature PM2.5 laser sensors according to claim 1, which is characterized in that the mirror is by mutually in 90 °
The two sides composition of angle, the light beam is antiparallel under the reflection of two sides mirror to turn back.
6. a kind of miniature PM2.5 laser sensors according to claim 1, which is characterized in that the dead angle is by being arranged on
Impermeable baffle plate in the housing is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710671.2U CN207557059U (en) | 2017-12-11 | 2017-12-11 | A kind of miniature PM2.5 laser sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721710671.2U CN207557059U (en) | 2017-12-11 | 2017-12-11 | A kind of miniature PM2.5 laser sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557059U true CN207557059U (en) | 2018-06-29 |
Family
ID=62665642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721710671.2U Expired - Fee Related CN207557059U (en) | 2017-12-11 | 2017-12-11 | A kind of miniature PM2.5 laser sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207557059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406355A (en) * | 2018-11-06 | 2019-03-01 | 深圳益杉创新科技有限公司 | Particulate matter detection means |
-
2017
- 2017-12-11 CN CN201721710671.2U patent/CN207557059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406355A (en) * | 2018-11-06 | 2019-03-01 | 深圳益杉创新科技有限公司 | Particulate matter detection means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Miniature PM2. 5 laser sensor Effective date of registration: 20190111 Granted publication date: 20180629 Pledgee: Guangdong Nanhai Rural Commercial Bank branch branch of Limited by Share Ltd. Pledgor: FOSHAN SENSICFUSION TECHNOLOGY Co.,Ltd. Registration number: 2019440000014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211211 |