CN203287312U - Vehicle and PM2.5 particle detection device component thereof - Google Patents

Abstract

The utility model proposes a vehicle and its PM2.5 particle detection device assembly. The PM2.5 particle detection device assembly includes: a casing, a detection cavity is formed in the casing; an air suction conduit, which communicates with the detection cavity ; Exhaust conduit, the exhaust conduit is connected with the detection chamber; the laser generator is arranged in the detection chamber to irradiate the air in the detection chamber to form scattered light; the photodetector is arranged in the detection chamber In order to convert scattered light into electrical pulse signals; and a control unit for screening and analyzing the electrical pulse signals of PM2.5 particles in the electrical pulse signals, the control unit is located in the casing and is connected with the laser generator and photoelectric detection The device is connected to control the laser generator and photodetector and receive electrical pulse signals. Thus, according to the vehicle PM2.5 particle detection device assembly according to the embodiment of the utility model, the PM2.5 pollutant particles in the air in the detection chamber can be accurately detected through the laser generator, the photodetector and the control unit.

Description

Vehicles and their PM2.5 particle detection device components

technical field

The utility model relates to a vehicle and a component of a PM2.5 particle detection device thereof.

Background technique

With the rapid growth of the number of family cars, more and more drivers pay attention to various services and applications surrounding the vehicles.

At present, the air quality inside the vehicle (especially the pollution degree of PM2.5 particulate pollutants) is of great concern to drivers. However, most of the existing vehicle air quality detection devices cannot detect and purify the PM2.5 particles in the vehicle.

Contents of the invention

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to propose a PM2.5 particle detection device assembly for a vehicle that can accurately detect PM2.5 particles.

Another object of the present utility model is to provide a vehicle with the PM2.5 particle detection device assembly.

According to the utility model, the PM2.5 particle detection device assembly for vehicles comprises: a casing, a detection chamber is formed in the casing; an air suction conduit, the air suction conduit communicates with the detection chamber to allow air to flow in The detection cavity; the exhaust conduit, the exhaust conduit communicates with the detection cavity to discharge the air from the detection cavity; the laser generator, the laser generator is arranged in the detection cavity to irradiating the air in the detection cavity to form scattered light; a photodetector, the photodetector is arranged in the detection cavity to convert the scattered light into an electrical pulse signal; and for the electrical pulse signal The control unit for screening and analyzing the electric pulse signal of PM2.5 particles, the control unit is arranged in the casing and connected with the laser generator and photoelectric detector to control the laser generator and photoelectric detector The detector also receives the electrical pulse signal.

Thus, according to the vehicle PM2.5 particle detection device assembly according to the embodiment of the utility model, the PM2.5 pollutant particles in the air in the detection chamber can be accurately detected through the laser generator, the photodetector and the control unit.

In addition, the vehicle PM2.5 particle detection device assembly according to the utility model also has the following additional technical features:

The control unit includes an MCU main control module and a communication module, the MCU main control module is connected with the laser generator and the photodetector, and after amplifying and filtering the electric pulse signal, according to the The magnitude is classified to screen and count the electrical pulse signals of the PM2.5 particles, and the communication module is connected to the display and control panel.

The air suction duct includes an interior duct connected with the cockpit of the vehicle and an exterior duct communicated with the environment outside the vehicle.

The PM2.5 particle detection device assembly for a vehicle also includes a solenoid valve connected to the control unit, and the solenoid valve is respectively connected with the conduit inside the vehicle and the conduit outside the vehicle to connect the conduit inside the vehicle with the detection chamber. switch between the communication between the external conduit and the detection cavity.

The solenoid valve has two air suction ports respectively connected with the inside conduit and the outside conduit and one air outlet connected with the detection chamber.

The vehicle PM2.5 particle detection device assembly also includes an air motor arranged in the casing and connected to the control unit, the air inlet of the air motor communicates with the detection chamber, and the air motor of the air motor The exhaust port communicates with the exhaust duct.

The vehicle PM2.5 particle detection device assembly also includes a detection chamber, which is arranged in the casing to form a detection chamber.

The vehicle according to the present invention includes: a display control panel and a PM2.5 particle detection device assembly, the PM2.5 particle detection device assembly is the PM2.5 particle detection device assembly for a vehicle described in any one of the above, and the The display control panel is connected with the component of the PM2.5 particle detection device to display the detection result of the PM2.5 particle.

Therefore, the vehicle according to the embodiment of the present invention can accurately detect PM2.5 pollutant particles in the air inside and outside the vehicle by using the PM2.5 particle detection device assembly.

In addition, the vehicle according to the utility model also has the following additional technical features:

The display control panel includes a display panel and a control panel respectively connected to the control unit.

The display and control panel is connected with the control unit through a CAN line.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

1 is a schematic diagram of the detection principle of the PM2.5 particle detection device assembly for a vehicle according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a vehicle PM2.5 particle detection device assembly according to an embodiment of the present invention;

Fig. 3 is an exploded schematic diagram of components of a PM2.5 particle detection device for a vehicle according to an embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but should not be construed as limiting the present utility model.

In describing the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. Novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The PM2.5 particle detection device assembly for a vehicle according to an embodiment of the present invention will be described below with reference to FIGS. 1-3 .

The vehicle PM2.5 particle detection device assembly according to the embodiment of the present invention includes: a casing 10 , an air suction duct 21 , an exhaust duct 22 , a laser generator 30 , a photoelectric detector 40 and a control unit 50 .

Specifically, as shown in FIGS. 1 and 2 , a detection chamber 11 is formed inside the casing 10 . The suction guide 21 communicates with the detection cavity 11 to deliver air into the detection cavity 11 , and the exhaust conduit 22 communicates with the detection cavity 11 to discharge the air from the detection cavity 11 .

The laser generator 30 can be arranged in the detection chamber 11, and emits laser light to irradiate the air in the detection chamber 11, if there are particles in the air, the light will be scattered. According to Tyndall's phenomenon, the amount of scattered light increases with particle size.

The photodetector 40 can be arranged in the detection chamber 11, and the photodetector 40 will generate electric charges every time it receives a photon, thereby converting the scattered light into an electric pulse, thus generating an electric charge proportional to the particle size in the air. electrical pulse signal.

The control unit 50 is arranged in the casing 10 and connected with the laser generator 30 and the photodetector 40 so as to control the laser generator 30 and the photodetector 40 .

After receiving the electrical pulse signal, the control unit 50 amplifies and filters the electrical pulse signal. The filtered electrical pulse signal is composed of a series of pulse signals, and the amplitude of the pulse is related to the particle size. The control unit 50 classifies these electrical pulse signals according to the amplitude of the pulses, so as to screen out the electrical pulse signals corresponding to PM2.5 pollutant particles from other signals. Finally, the control unit 50 performs analog/digital conversion on the electrical pulse signal of the PM2.5 pollutant particles, and analyzes the digital signal of the PM2.5 pollutant particles.

Thus, according to the vehicle PM2.5 particle detection device assembly of the embodiment of the present invention, through the laser generator 30, the photodetector 40 and the control unit 50, the PM2.5 pollutant particles in the air in the detection chamber 11 can be detected for accurate testing.

According to some embodiments of the present utility model, as shown in FIG. 2 , the air suction conduit 21 includes an in-vehicle conduit 23 communicated with the cockpit of the vehicle and an external conduit 24 communicated with the environment outside the vehicle. Air inside the vehicle can be transported into the detection cavity 11 through the duct 23 inside the vehicle, and the air in the external environment can be transported into the detection cavity 11 by the duct 24 outside the vehicle.

The vehicle PM2.5 particle detection device assembly also includes a solenoid valve 60 connected to the control unit 50 . The solenoid valve 60 communicates with the in-vehicle conduit 23 and the external conduit 24 respectively, and the in-vehicle conduit 23 communicates with the detection cavity 11 or the external conduit 24 communicates with the detection cavity 11 through switching of the solenoid valve 60 . In this way, the driver can control the detection of PM2.5 particles in the air inside the car or PM2.5 particles in the air outside the car through the buttons on the display control panel.

The solenoid valve 60 may have two suction ports respectively connected with the interior duct 23 and the exterior duct 24 and an air outlet communicated with the detection chamber 11 through the suction duct 21 . The solenoid valve 60 can be detachably connected to the interior conduit 23 , the exterior conduit 24 and the exhaust conduit 22 through bolt caps.

Those skilled in the art can understand that the vehicle PM2.5 particle detection device assembly of the present utility model can also only be provided with an air suction duct that communicates with the cockpit, and the detected result when the window is closed is The value of PM2.5 particles in the air inside the car, and the value of PM2.5 particles in the air outside the car is detected when the window is opened. In addition, in the above structure, it is not necessary to provide the solenoid valve 60 .

As shown in FIG. 2 , the vehicle PM2.5 particle detection device assembly further includes an air motor 70 disposed in the housing 10 and connected to the control unit 50 .

The air inlet of the air motor 70 communicates with the detection chamber 11 through a conduit, and the air outlet of the air motor communicates with the exhaust conduit 22 . When it is necessary to detect PM2.5 pollutant particles, the control unit 50 starts the air motor 70 to suck the air inside or outside the car into the detection chamber 11 through the air suction duct 21, and after detection, it is discharged from the exhaust passage hall 22. discharge.

The control unit 50 includes an MCU main control module 51 and a communication module 52 .

The MCU main control module 51 is respectively connected with the laser generator 30 , the photodetector 40 , the solenoid valve 60 and the air motor 70 . After receiving the electric pulse signal generated by the photodetector 40, the MCU main control module 51 amplifies and filters the electric pulse signal. The MCU main control module 51 classifies these electrical pulse signals according to the amplitude of the pulses, so as to screen out the electrical pulse signals corresponding to PM2.5 pollutant particles from other signals. Finally, the MCU main control module 51 performs analog/digital conversion on the electric pulse signal of PM2.5 pollutant particles, and counts the digital signal of PM2.5 pollutant particles.

The communication module 52 is responsible for outputting the detection result of PM2.5 pollutant particles to the display device of the vehicle.

As shown in FIG. 3 , the vehicle PM2.5 particle detection device assembly also includes a detection chamber 80 . The detection chamber 80 is disposed in the casing 10 to form the detection chamber 11 .

The casing 10 may further include a cover plate 12 covering the opening of the casing 10 .

Vehicles according to embodiments of the present invention are described below.

The vehicle according to the embodiment of the present invention includes a display control panel 90 and a PM2.5 particle detection device assembly. The display control panel 90 is connected with the PM2.5 particle detection device assembly so as to display the detection result of PM2.5 particles (that is, the analysis result of the control unit 50 on PM2.5 particles), and the driver can control the control unit 50 through the display control panel. Issue a control command, such as switching to the air detection mode in the car.

Therefore, the vehicle according to the embodiment of the present invention can accurately detect PM2.5 pollutant particles in the air inside and outside the vehicle by using the PM2.5 particle detection device assembly.

In addition, the display and control panel 90 includes a display panel and a control panel respectively connected to the control unit 50 , specifically, the display panel is connected to the communication module 52 , and the control panel is connected to the MCU main control module 51 . The display panel may be an air conditioner panel, and the control panel may be a multimedia panel.

The display control panel 90 is connected to the control unit 50 through a data transmission line, for example, a CAN line can be used.

Other components of the vehicle according to the embodiment of the present invention may be known to those skilled in the art, and will not be repeated here.

In the description of this specification, references to the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific examples," or "some examples" are intended to mean that the implementation Specific features, structures, materials or characteristics described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications, the scope of the present invention is defined by the claims and their equivalents.

Claims (10)

1. A PM2.5 particle detection device assembly for vehicles, characterized in that: comprising: A casing, a detection cavity is formed in the casing; an air suction conduit, the air suction conduit communicates with the detection cavity to allow air to flow into the detection cavity; an exhaust conduit, the exhaust conduit communicates with the detection cavity to discharge the air from the detection cavity; A laser generator, the laser generator is arranged in the detection cavity to irradiate the air in the detection cavity to form scattered light; a photodetector disposed within the detection cavity to convert the scattered light into an electrical pulse signal; and A control unit for screening and analyzing the electric pulse signal of PM2.5 particles in the electric pulse signal, the control unit is arranged in the casing and connected with the laser generator and photodetector to control The laser generator and the photodetector receive the electric pulse signal. the 2. The vehicle PM2.5 particle detection device assembly according to claim 1, characterized in that: the control unit includes an MCU main control module and a communication module, and the MCU main control module is connected with the laser generator and photoelectric The detector is connected, and after the electric pulse signal is amplified and filtered, it is classified according to the amplitude of the electric pulse signal to screen the electric pulse signal of the PM2.5 particles and the electric pulse signal of the PM2.5 particle The signal is counted, and the communication module is connected with the display and control panel. the 3. The vehicle PM2.5 particle detection device assembly according to claim 1, characterized in that: the air suction duct comprises an interior duct communicated with the cockpit of the vehicle and an exterior duct communicated with the environment outside the vehicle . the 4. The vehicle PM2.5 particle detection device assembly according to claim 3, characterized in that: it also includes a solenoid valve connected to the control unit, and the solenoid valve is connected to the interior conduit and the exterior conduit respectively. connected to switch between the in-vehicle conduit communicating with the detection cavity or the external conduit communicating with the detection cavity. the 5. The vehicle PM2.5 particle detection device assembly according to claim 4, characterized in that: the solenoid valve has two suction ports that communicate with the interior conduit and the exterior conduit respectively and one that communicates with the conduit outside the vehicle. The detection chamber is connected to a gas outlet. the 6. The vehicle PM2.5 particle detection device assembly according to claim 1, characterized in that: it also includes an air motor arranged in the casing and connected to the control unit, the air intake of the air motor The port communicates with the detection cavity, and the exhaust port of the air motor communicates with the exhaust conduit. the 7. The vehicle PM2.5 particle detection device assembly according to any one of claims 1-6, characterized in that it further comprises a detection chamber, the detection chamber is arranged in the casing to form a detection cavity. the 8. A vehicle, characterized in that: comprising: a display control panel and a PM2.5 particle detection device assembly, the PM2.5 particle detection device assembly is the vehicle PM2 as described in any one of claims 1-7 .5 particle detection device components, the display control panel is connected with the PM2.5 particle detection device components to display the detection results of PM2.5 particles. the 9. The vehicle according to claim 8, wherein the display control panel comprises a display panel and a control panel respectively connected to the control unit. the 10. The vehicle according to claim 8, wherein the display and control panel is connected to the control unit through a CAN line. the

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