CN210514021U - On-vehicle binary channels dust sensor - Google Patents
On-vehicle binary channels dust sensor Download PDFInfo
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- CN210514021U CN210514021U CN201920491906.6U CN201920491906U CN210514021U CN 210514021 U CN210514021 U CN 210514021U CN 201920491906 U CN201920491906 U CN 201920491906U CN 210514021 U CN210514021 U CN 210514021U
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Abstract
The utility model discloses an on-vehicle binary channels dust sensor. It includes the plastic casing, installs fan and detecting element in the plastic casing in proper order, and the both sides of plastic casing are provided with the air inlet that is used for letting in the air, are provided with inlet channel on the detecting element and the outlet channel who corresponds with the fan, and the air can be followed two different air inlets and entered into two inlet channels and detected by detecting element in, and the fan can collect and discharge the gas after detecting through outlet channel. After the structure is adopted, the air detection device is ingenious in structural design, the air detection inside and outside the vehicle can be realized only by installing one sensor, the manufacturing cost is low, the installation space is saved, the detected air cannot be influenced, and the accuracy of the detection data is ensured by the installed sponge; the metal shielding cover avoids electromagnetic interference of automobile electronic devices, further guarantees accuracy of monitoring data, avoids resonance, and further improves monitoring effect.
Description
Technical Field
The utility model relates to an on-vehicle sensor, specifically speaking are on-vehicle binary channels dust sensor.
Background
The dust sensor is a sensor device for measuring micro particles suspended in air, and is widely applied to products such as air purifiers, air conditioners, fresh air systems and the like in the fields of atmospheric measurement, fire, flue gas measurement, smoke discharge measurement of industrial boilers, kilns, chemical plants and the like; wherein the inside dust concentration that the new trend system used on-vehicle system's dust sensor to detect the car inside also has to install the new trend system, gives ECU according to the detection data, and ECU is according to data and user's control of gathering, then controls the executor and reach new trend system automatic control. The air inlet mode of the fresh air system can be automatically adjusted, and the fresh air system can be automatically switched to the external circulation after being circulated for a period of time, so that external air enters the vehicle; however, the outside is not necessarily good air, and therefore, it is usually necessary to install a dust detection sensor outside the vehicle; when the external air is detected to be bad, the internal circulation is automatically switched to; the existing detection mode necessarily needs to install dust detection sensors in and out of the vehicle, which undoubtedly increases a large part of cost and installation positions, so how to reduce the cost and save the installation space is the current technical problem.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a structural design is ingenious, the detection data is accurate, with low costs and can save installation space's on-vehicle binary channels dust sensor.
In order to solve the technical problem, the utility model discloses an on-vehicle binary channels dust sensor, including the plastic casing, install fan and detecting element in the plastic casing in proper order, the both sides of plastic casing are provided with the air inlet that is used for letting in the air, are provided with the inlet channel that corresponds with two air inlets and the outlet channel who corresponds with the fan on the detecting element, and the air can be followed two different air inlets and entered into two inlet channels and detected by detecting element in, the fan can collect and discharge the gas after detecting through outlet channel.
An upper metal shielding cover and a lower metal shielding cover are arranged outside the plastic shell, and the upper metal shielding cover and the lower metal shielding cover are installed in an involutory mode and enable the plastic shell to be fixed in a cavity formed after involutory installation.
The detecting element includes that two of the bottom setting of PCB board and PCB board examine the laser lamp, air outlet channel sets up at the middle part of PCB board and is located two and examines between the laser lamp, air inlet channel sets up the both sides at two laser lamps.
The fan is characterized in that a fan base is arranged at the bottom of the fan, the fan is installed through the fan base, and the PCB is fixedly installed at the bottom of the fan base.
The lower part both sides of plastic casing are provided with the location boss, the bottom both sides of going up the metal shielding cover and the top both sides of metal shielding cover down are provided with and fix a position boss matched with positioning slot, go up the metal shielding cover and cooperate the installation with the location boss of plastic casing through positioning slot with lower metal shielding cover.
And a through hole is arranged in the middle of the positioning boss and serves as an air inlet.
The plastic casing is also provided with a guide groove, the edges of the PCB and the fan base are both provided with guide blocks matched with the guide groove, and the PCB and the fan base are matched with the guide groove of the plastic casing through the guide blocks.
And air outlet holes are arranged at the top of the upper metal shielding cover.
And a filtering sponge is arranged in the air inlet.
After the structure is adopted, the two air inlets arranged on the two sides of the plastic shell, the air inlet channels corresponding to the two air inlets, the air outlet channels and the fan matched with the detection module are arranged on the detection module, the structure design is ingenious, the air detection inside and outside the automobile can be realized only by installing one sensor, the manufacturing cost is low, the installation space is saved, when in detection, the external air enters one detection module of the dust sensor through the air inlet outside the automobile for detection, and the air inside the automobile enters the other detection module of the dust sensor through the air inlet inside the automobile for detection; the air outlets of the two detection modules simultaneously discharge air through the air outlets by the fans arranged above the detection units, the fans draw air outwards, the detected air is gathered together, the detected air is not affected, the detection precision is ensured, the fresh air system finally judges whether the external circulation or the internal circulation is started, and in addition, the air inlets of the dust sensors are provided with sponge coarse filtration to prevent large particles from entering the sensors, so that the accuracy of detected data is ensured; the metal shielding cover avoids electromagnetic interference of automobile electronic devices, further guarantees accuracy of monitoring data, simultaneously avoids resonance generated by automobile power parts, and further improves monitoring effect.
Drawings
FIG. 1 is an exploded view of the two-channel dust sensor of the present invention;
fig. 2 is the channel route schematic diagram of the vehicle-mounted two-channel dust sensor of the present invention.
Detailed Description
The following describes the vehicle-mounted two-channel dust sensor in further detail with reference to the accompanying drawings and the detailed description.
As shown in the figure, the vehicle-mounted double-channel dust sensor of the utility model comprises an upper metal shielding cover 1, a lower metal shielding cover 2 and a plastic shell 3 arranged between the upper metal shielding cover 1 and the lower metal shielding cover 2, wherein the upper metal shielding cover 1 and the lower metal shielding cover 2 are arranged outside the plastic shell 3, thus preventing the plastic shell from being interfered by electromagnetic interference of automobile electronic devices, ensuring the accuracy of monitoring data, avoiding the resonance of automobile power parts and further improving the monitoring effect, as can be seen from the figure, the upper metal shielding cover 1 is taken as an installation cavity, the lower metal shielding cover 2 is taken as an installation cover plate which is oppositely arranged with the upper metal shielding cover 1, the plastic shell 3 can be arranged in the upper metal shielding cover 1 and is sealed by the lower metal shielding cover 2, thereby ensuring that the upper metal shielding cover 1 and the lower metal shielding cover 2 are oppositely arranged and ensuring that the plastic shell is fixed in a cavity formed after oppositely arranged, two air inlets 8 for introducing air are arranged on two sides of the plastic shell 3, one air inlet is communicated with the outside of the vehicle, another air inlet communicates with each other in the car, install fan 4 and detecting element in proper order in the plastic casing 3, detecting element said includes two detecting module that the bottom of PCB board 5 and PCB board 5 set up, detecting module is preferably laser lamp 7 in this embodiment, utilize the laser lamp to shine the air, the middle part of PCB board 5 is provided with the air outlet channel 6 that is used for the air to pass through, air outlet channel 6 corresponds with the fan, all be provided with the inlet channel 9 that corresponds with two air inlets on two laser lamps 6, air outlet channel 6 is located between two laser lamps 7 of examining, the air can follow two different air inlets and enter into two inlet channels respectively and detect by detecting element, fan 4 can collect the gas after detecting through air outlet channel 6 and from last metallic shield cover 1 discharge.
Furthermore, a fan base 10 is arranged at the bottom of the fan 4, the fan base comprises a mounting base plate and a fan mounting frame arranged on the mounting base plate, the fan 4 is arranged in the fan mounting frame, positioning bosses 11 are arranged at two sides of the lower part of the plastic housing 3, two sides of the bottom of the upper metal shielding case 1 and two sides of the top of the lower metal shielding case 2 are provided with clamping grooves which can be mutually combined, the plastic housing is fixed in the upper metal shielding case 1, so that the clamping grooves of the upper metal shielding case 1 clamp the positioning bosses 11, the clamping grooves of the lower metal shielding case 2 and the clamping grooves of the upper metal shielding case 1 simultaneously clamp the positioning bosses after being combined and mounted with the upper metal shielding case 1, thereby realizing the positioning and mounting of the plastic housing 3, in addition, the plastic housing 3 is also provided with a guide groove 12 which has an angle of 90 degrees different from the positioning bosses, specifically, the positioning bosses 11 are arranged, the guide grooves 12 are formed on the front and rear sides of the plastic housing 3, the edge of the mounting base plate is provided with a guide block matched with the guide grooves, the edge of the CB plate 5 is also provided with a guide block matched with the guide grooves, and the PCB plate 5 and the fan base 10 are matched with the guide grooves of the plastic housing through the guide blocks.
Furthermore, the PCB 5 is fixedly installed at the bottom of the fan base 10, a through hole is arranged in the middle of the positioning boss 11 and serves as a dust inlet, air outlet holes 13 are arranged at the top of the upper metal shielding cover 1, filtering sponges 14 are installed in the two air inlet holes on the two sides of the plastic shell 3, large particles are prevented from entering the sensor after coarse filtering through the filtering sponges, and detection data are guaranteed; the filter sponge needs to be replaced periodically;
when the dust sensor is used, external air enters one detection module of the dust sensors through an air inlet outside a vehicle to be detected; inside air of car enters into the other detection module of dust sensor through the air inlet in the car and detects, two detection module air outlets all discharge the air simultaneously through the exhaust hole through installing the fan in detection module top, because the fan is outside convulsions, the air after the detection can be gathered together, the new trend system is according to the outer automatic regulation new trend system of the data contrast of the detection module in car with the car of car and is starting extrinsic cycle or inner loop, when the dust concentration of the outer car is greater than the concentration in the car, the new trend system just automatic switch becomes the inner loop, when the dust concentration of the outer car is less than the concentration in the car, the new trend system just can automatic switch into the extrinsic cycle.
Claims (9)
1. An on-vehicle binary channels dust sensor which characterized in that: including plastic casing (3), install fan (4) and detecting element in proper order in plastic casing (3), the both sides of plastic casing (3) are provided with air inlet (8) that are used for letting in the air, be provided with inlet channel (9) that correspond with two air inlets and outlet channel (6) that correspond with the fan on the detecting element, the air can be followed two different air inlets and is entered into in two inlet channels and detected by detecting element, fan (4) can collect and discharge the gas after detecting through outlet channel (6).
2. The on-board two-channel dust sensor of claim 1, wherein: an upper metal shielding cover (1) and a lower metal shielding cover (2) are arranged outside the plastic shell (3), and the upper metal shielding cover (1) and the lower metal shielding cover (2) are installed in a closing mode and enable the plastic shell to be fixed in a cavity formed after the closing installation.
3. The on-vehicle two-channel dust sensor according to claim 1 or 2, wherein: the detecting unit comprises two laser lamps (7) arranged at the bottoms of the PCB (5) and the PCB (5), the air outlet channel (6) is arranged in the middle of the PCB (5) and located between the two laser lamps (7), and the air inlet channel (9) is arranged on two sides of the two laser lamps (7).
4. The on-board two-channel dust sensor of claim 3, wherein: the fan is characterized in that a fan base (10) is arranged at the bottom of the fan (4), the fan (4) is installed through the fan base, and the PCB (5) is fixedly installed at the bottom of the fan base (10).
5. The on-board two-channel dust sensor of claim 2, wherein: the lower part both sides of plastic casing (3) are provided with location boss (11), the bottom both sides of going up metal shield cover (1) and the top both sides of metal shield cover (2) down are provided with and fix a position boss matched with positioning slot, go up metal shield cover (1) and metal shield cover (2) down and cooperate the installation through positioning slot and the location boss of plastic casing (3).
6. The on-board two-channel dust sensor of claim 5, wherein: the middle part of the positioning boss (11) is provided with a through hole as an air inlet.
7. The on-board two-channel dust sensor of claim 3, wherein: still be provided with guide slot (12) on plastic casing (3), the edge of PCB board (5) and fan base all is provided with guide slot complex guide block, PCB board (5) and fan base (10) pass through the guide slot cooperation of guide block and plastic casing.
8. The on-vehicle two-channel dust sensor according to claim 2 or 5, wherein: and air outlet holes (13) are arranged at the top of the upper metal shielding cover (1).
9. The on-board two-channel dust sensor of claim 8, wherein: and a filtering sponge (14) is arranged in the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920491906.6U CN210514021U (en) | 2019-04-11 | 2019-04-11 | On-vehicle binary channels dust sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920491906.6U CN210514021U (en) | 2019-04-11 | 2019-04-11 | On-vehicle binary channels dust sensor |
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| Publication Number | Publication Date |
|---|---|
| CN210514021U true CN210514021U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920491906.6U Active CN210514021U (en) | 2019-04-11 | 2019-04-11 | On-vehicle binary channels dust sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134018A (en) * | 2020-10-26 | 2020-12-25 | 广东华旃电子有限公司 | Automobile antenna shielding assembly and manufacturing method thereof |
| CN112304832A (en) * | 2020-11-05 | 2021-02-02 | 安徽亿星电子科技有限公司 | Vehicle-mounted air particulate matter detection device |
-
2019
- 2019-04-11 CN CN201920491906.6U patent/CN210514021U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112134018A (en) * | 2020-10-26 | 2020-12-25 | 广东华旃电子有限公司 | Automobile antenna shielding assembly and manufacturing method thereof |
| CN112304832A (en) * | 2020-11-05 | 2021-02-02 | 安徽亿星电子科技有限公司 | Vehicle-mounted air particulate matter detection device |
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