CN209513531U - A kind of automobile-used integrated micro PM2.5 sensor - Google Patents
A kind of automobile-used integrated micro PM2.5 sensor Download PDFInfo
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- CN209513531U CN209513531U CN201920254359.XU CN201920254359U CN209513531U CN 209513531 U CN209513531 U CN 209513531U CN 201920254359 U CN201920254359 U CN 201920254359U CN 209513531 U CN209513531 U CN 209513531U
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- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000005611 electricity Effects 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of automobile-used integrated micro PM2.5 sensors, including upper cover, fan, air channel structure, pcb board and lower cover, fan is arranged in air channel structure, air channel structure is arranged on pcb board, laser head and photoelectric tube are equipped in air channel structure, fan, air channel structure and pcb board are arranged between upper cover and lower cover, pcb board is equipped with microcontroller, LIN communicating circuit, fan drive circuit, laser head drive circuit and PM2.5 detection circuit, fan drive circuit is connect with fan, laser head drive circuit is connect with laser head, PM2.5 detection circuit is connect with photoelectric tube, LIN communicating circuit, fan drive circuit, laser head drive circuit and PM2.5 detection circuit with the connection of micro-controller communications.For the utility model by the above circuit integration on one piece of pcb board, volume is smaller, and arrangement optional position increases, high integration, and cost is lower.
Description
Technical field
The utility model belongs to PM2.5 detection technique field, and in particular to a kind of automobile-used integrated micro PM2.5 sensing
Device.
Background technique
Fine particle is also known as particulate, fine grained, PM2.5.Fine particle refers to aerodynamics equivalent diameter in surrounding air
Particulate matter less than or equal to 2.5 microns.It can be suspended in the air the long period, and content concn is higher in air, with regard to generation
Table air pollution is more serious.Requirement with people to air quality is higher and higher, especially to air-borne dust allergy, with exhaling
Requirement of the tract disease et al. to air quality is inhaled, people increasingly want to the air quality for clearly grasping personal space,
The air quality inside automobile bodies being especially commonly used.PM2.5 sensor only supports PM2.5 to detect on the market, does not prop up
LIN communication is held, onboard to use, need additionally to add one piece of pcb board with LIN communication function, structure is complicated, at high cost.
Utility model content
The purpose of this utility model is to provide LIN communicating circuit and PM2.5 detection circuit are integrated on pcb board, body
A kind of smaller automobile-used integrated micro PM2.5 sensor of product.
In order to achieve the above object, the major technique solution of the utility model is to provide a kind of automobile-used integrated micro
PM2.5 sensor, which is characterized in that including upper cover, fan, air channel structure, pcb board and lower cover, fan is arranged in air channel structure
Interior, air channel structure is arranged on pcb board, laser head and photoelectric tube is equipped in air channel structure, fan, air channel structure and pcb board are equal
It is arranged between upper cover and lower cover, pcb board is equipped with microcontroller, LIN communicating circuit, fan drive circuit, laser head driving
Circuit and PM2.5 detection circuit, fan drive circuit are connect with fan, and laser head drive circuit is connect with laser head, PM2.5 inspection
Slowdown monitoring circuit is connect with photoelectric tube, LIN communicating circuit, fan drive circuit, laser head drive circuit and PM2.5 detection circuit with
Micro-controller communications connection.
As an improvement being equipped with upper shielding case on the inside of upper cover, lower shielding case is equipped on the inside of lower cover.
Wherein, upper cover and lower cover are connected by a snap.
Wherein, microcontroller is high-performance 32-bit microcontroller.
The utility model beneficial effect is: 1, LIN communicating circuit and PM2.5 detection circuit are integrated in one by the utility model
On block pcb board, volume is smaller, and arrangement optional position increases, high integration, and cost is lower.
2, shielding case can shield electromagnetic signal, prevent detection data abnormal.
3, high-performance 32-bit microcontroller not only supports LIN communication, but also meets PM2.5 Concentration Testing and adopt to ADC high speed
The requirement of collection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention,
Fig. 2 is the electrical block diagram of the utility model,
In figure: upper cover 1, fan 2, air channel structure 3, pcb board 4, lower cover 5, upper shielding case 6, lower shielding case 7.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, 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 embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
It will be understood by those skilled in the art that in the exposure of the utility model, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore on
Stating term should not be understood as limiting the present invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be multiple, term
The limitation for the quantity that " one " should not be understood as pair.
As shown in Figure 1, a kind of automobile-used integrated micro PM2.5 sensor described in the present embodiment, which is characterized in that packet
Upper cover 1, fan 2, air channel structure 3, pcb board 4 and lower cover 5 are included, fan 2 is fixed in air channel structure 3 by screw, air duct
Structure 3 is fixed on pcb board 4, is equipped with laser head and photoelectric tube in air channel structure 3, the laser that laser head projects perpendicular to
Air duct, and pass through above photoelectric tube, fan 2, air channel structure 3 and pcb board 4 are arranged between upper cover 1 and lower cover 5, wherein
Upper cover 1 and lower cover 5 are connected by a snap, and are integrated on pcb board 4 equipped with microcontroller, LIN communicating circuit, fan drive circuit, are swashed
Bare headed driving circuit and PM2.5 detection circuit, fan drive circuit are connect with fan 2, and laser head drive circuit and laser head connect
It connects, PM2.5 detection circuit is connect with photoelectric tube, LIN communicating circuit, fan drive circuit, laser head drive circuit and PM2.5 inspection
Slowdown monitoring circuit is connect with micro-controller communications.
As shown in Figure 2, wherein the circuit part of pcb board 4 includes:
Power-switching circuit: stabilized power supply is provided for system.
LIN communicating circuit: AC and PM2.5 assembly data transmission hinge.
PM2.5 detection circuit: the light scattering signal that PM2.5 particulate matter generates is converted into electric signal.
Fan drive circuit: this circuit control fan work provides acquisition gas for PM2.5 detection module.
Laser drive circuit: light source is provided for PM2.5 detection.
The utility model is mounted on automobile, and work step is as follows:
1. being powered by Battery, when AC judges that vehicle power supply status switches to ON gear, PM2.5 device is waken up.
2.LIN chip is started to work and send instructions, and modules are started to work；
1) microcontroller control fan is started to work, and extracts gas in automobile bodies；
2) when the light beam that the particle in sample gas is issued by light source (laser head), light scattering phenomenon is generated.Scattering
Light is become electric signal (pulse) by photoelectric transformer, and particle show that more greatly the pulse signal is bigger (crest value), passes through this
When crest value and umber of pulse can obtain the number concentration of each partial size；
3) collected data are communicated by LIN concentration value feeding back to AC, and AC sends HUT by CAN bus and shown
Show.
As an improvement specific embodiment, upper shielding case 6 is equipped on the inside of upper cover 1, is equipped with lower shielding on the inside of lower cover 5
Cover 7, shielding case can shield electromagnetic signal, prevent detection data abnormal.
It is noted that microcontroller is high-performance 32-bit microcontroller, LIN communication is not only supported, but also meet
Requirement of the PM2.5 Concentration Testing to ADC high speed acquisition.
The utility model is not limited to above-mentioned preferred forms, anyone can obtain under the enlightenment of the utility model
Other various forms of products, however, make any variation in its shape or structure, it is all that there is same as the present application or phase
Approximate technical solution, all falls within the protection scope of the utility model.
Claims (4)
1. a kind of automobile-used integrated micro PM2.5 sensor, which is characterized in that including upper cover (1), fan (2), air channel structure
(3), pcb board (4) and lower cover (5), in air channel structure (3), the air channel structure (3) is arranged in PCB for fan (2) setting
On plate (4), laser head and photoelectric tube are equipped in air channel structure (3), the fan (2), air channel structure (3) and pcb board (4) are all provided with
It sets between upper cover (1) and lower cover (5), is integrated on the pcb board (4) equipped with microcontroller, LIN communicating circuit, fan driving
Circuit, laser head drive circuit and PM2.5 detection circuit, the fan drive circuit are connect with fan (2), and the laser head drives
Dynamic circuit is connect with laser head, and the PM2.5 detection circuit is connect with photoelectric tube, the LIN communicating circuit, fan driving electricity
Road, laser head drive circuit and PM2.5 detection circuit are connect with micro-controller communications.
2. automobile-used integrated micro PM2.5 sensor according to claim 1, which is characterized in that on the inside of the upper cover (1)
Equipped with upper shielding case (6), lower shielding case (7) are equipped on the inside of the lower cover (5).
3. automobile-used integrated micro PM2.5 sensor according to claim 2, which is characterized in that the upper cover (1) and under
Lid (5) is connected by a snap.
4. automobile-used integrated micro PM2.5 sensor according to claim 1, which is characterized in that the microcontroller is
High-performance 32-bit microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254359.XU CN209513531U (en) | 2019-02-28 | 2019-02-28 | A kind of automobile-used integrated micro PM2.5 sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920254359.XU CN209513531U (en) | 2019-02-28 | 2019-02-28 | A kind of automobile-used integrated micro PM2.5 sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209513531U true CN209513531U (en) | 2019-10-18 |
Family
ID=68204765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920254359.XU Active CN209513531U (en) | 2019-02-28 | 2019-02-28 | A kind of automobile-used integrated micro PM2.5 sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209513531U (en) |
-
2019
- 2019-02-28 CN CN201920254359.XU patent/CN209513531U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220630 Address after: 318020 No. 128 Xinjiang Road, Chengjiang Street, Huangyan District, Taizhou City, Zhejiang Province Patentee after: Xinli automotive electronics (Taizhou) Co.,Ltd. Address before: 318020 No. 128 Xinjiang Road, Chengjiang Street, Huangyan District, Taizhou City, Zhejiang Province Patentee before: SAILING TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 2298, Central Avenue, the Taihu Lake Street, Changxing County, Huzhou City, Zhejiang Province, 313100 Patentee after: Xinli Automotive Electronics (Zhejiang) Co.,Ltd. Country or region after: China Address before: 318020 No. 128 Xinjiang Road, Chengjiang Street, Huangyan District, Taizhou City, Zhejiang Province Patentee before: Xinli automotive electronics (Taizhou) Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |