Novel PM2.5 sensor equipment

Abstract

According to the novel PM2.5 sensor equipment, a draught fan is integrally integrated on an upper shell, the mold cost is reduced, and the overall noise vibration of the draught fan is reduced. The filter screen is arranged at the air inlet to preliminarily filter large-particle impurities such as hair and fabric in the air, so that the air inlet or the air outlet of the detection device is prevented from being blocked by the impurities, and the precision of a detection result is improved; meanwhile, the air is isolated from electronic components outside the device cavity by the air exhaust element, so that dust in the air is prevented from covering and depositing on the electronic components to the greatest extent, the accuracy of a detection result is improved, and the service life of the detection device is prolonged; in addition, the clamping grooves and the positioning ribs are arranged on the upper shell and the lower shell respectively, effective assembly between the air quality detection device and the vehicle is facilitated, and the technical effects of stable installation and vibration prevention are achieved.

Description

Technical Field

[0001] The present disclosure relates to the field of quality detection technology, and in particular to a novel PM2.5 sensor device and a vehicle. Background Art

[0002] With the improvement of health awareness, users usually pay attention to the air quality in transportation tools such as cars, and only rely on human feeling to judge the air quality in the car, and turn on or off the car purifier or car air-conditioning system according to the judgment result. However, this kind of human judgment will have errors, resulting in users unable to make correct opening or closing operations, resulting in the failure to purify the air in time and reduce health risks.

[0003] The PM2.5 sensors currently on the market will be blocked by large particles of impurities such as hair and fabric in the air during infection monitoring, affecting detection. In addition, because they need to be installed on vehicles and other means of transportation, the vibration generated during the driving of the vehicle will cause the sensor to be unstable, which will also affect the sensor detection.

[0004] Therefore, the market is in urgent need of a sensor device that can prevent the sensor elements in the vehicle from being interfered with, so as to accurately and in real time detect the air quality in the vehicle. Utility Model Content

[0005] In order to solve the above problems, the present application proposes a new PM2.5 sensor device and a vehicle.

[0006] On the one hand, the present application proposes a novel PM2.5 sensor device, comprising:

[0007] A housing, wherein:

[0008] The housing is provided with an air filter, an air inlet 13 and an air outlet 11, wherein the air filter is located at the air inlet 13;

[0009] The housing is provided with: a circuit board 9, a communication component 8, a laser shielding cover 5, an air extraction element 20 and an air cavity 15, wherein the communication component 8, the light sensing element inside the laser shielding cover 5 and the air extraction element 20 are electrically connected to the circuit board 9 respectively;

[0010] The sucked gas enters through the air cavity 15, is detected by the light sensing element inside the laser shielding cover 5, and the detection signal is fed back to the circuit board 9. The circuit board 9 calculates the detection signal and sends it to the communication component 8 for reporting.

[0011] As an optional embodiment of the present application, optionally, the housing is composed of an upper housing 3 and a lower housing 6, and the two are fixed by screws 4;

[0012] The air inlet 13 and the air outlet 11 are both disposed on the upper shell 3 .

[0013] As an optional embodiment of the present application, optionally, the air filter comprises:

[0014] Filter 2;

[0015] The filter cover plate 1 is matched at the air inlet hole 13 to fix the filter 2 on the air inlet hole 13 .

[0016] As an optional embodiment of the present application, optionally, the air cavity 15 includes:

[0017] A second cavity 19 is provided on the lower surface of the air inlet 13 and is used for air intake. The upper edge of the second cavity 19 is connected to the first notch of the circuit board 9;

[0018] The first cavity 17 is provided on the lower shell 6 and communicates with the second cavity 19;

[0019] The third cavity 14 is disposed on the lower shell 6 and is connected to the first cavity 17 through a flow channel 18 .

[0020] As an optional implementation scheme of the present application, optionally, the first cavity 17 is enclosed by a baffle plate disposed inside the lower shell 6 , and the baffle plate of the lower shell 6 abuts against the circuit board 9 .

[0021] As an optional embodiment of the present application, optionally, the air cavity 15 further includes:

[0022] The ribs 16 are disposed on the inner side of the lower shell 6 and are used to support and separate the lower shell 6 from the upper shell 3 .

[0023] As an optional embodiment of the present application, optionally, the air extraction element 20 passes through the circuit board 9 , and its air outlet surface 21 protrudes from the upper surface of the circuit board 9 and abuts against the air outlet hole 11 .

[0024] As an optional implementation scheme of the present application, optionally, it also includes:

[0025] The slot 10 and the positioning rib 12 are used to assemble the upper shell 3 and the lower shell 6 .

[0026] As an optional implementation scheme of the present application, optionally, it also includes:

[0027] The label 7 is arranged on the outer surface of the lower shell 6 .

[0028] On the other hand, the present application proposes a means of transportation, comprising: a novel PM2.5 sensor device as described above.

[0029] Technical effects of the utility model:

[0030] The present application reduces mold costs and overall noise and vibration of the fan by integrating the fan as a whole into the upper shell 3. A filter 2 is provided at the air inlet to preliminarily filter large particles of impurities such as hair and fabric in the air, thereby preventing these impurities from clogging the air inlet 13 or the air outlet 11 of the detection device, thereby improving the accuracy of the detection result; at the same time, a second cavity 19 is provided on the lower surface of the air inlet 13 on the upper shell 3, and the second cavity 19 extends from the lower part of the upper shell 3 and protrudes from the lower surface of the upper shell 3. The edge of the second cavity 19 is embedded in the first notch of the circuit board 9, so that the measured fluid entering from the air inlet 13 directly reaches the lower shell 6 after passing through the first cavity. The accommodating cavity provided on the lower shell 6 is enclosed by a baffle provided inside the lower shell, and the baffle of the lower shell 6 abuts against the circuit board, thereby separating the upper shell 3 and the lower shell 6 through the circuit board. The circuit board also includes a pump that passes through the circuit board. The air outlet surface of the air pump element protrudes from the upper surface of the circuit board and abuts against the air outlet hole 11 on the upper shell 3, so that the air is isolated from the electronic components outside the accommodating cavity, and dust in the air is avoided to the greatest extent from covering and depositing on the electronic components, thereby improving the accuracy of the detection results and extending the life of the detection device. In addition, card slots 10 and positioning ribs 12 are respectively arranged on the upper and lower shells to facilitate the effective assembly between the air quality detection device and the vehicle, thereby achieving the technical effect of stable installation and vibration prevention.

[0031] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.

[0033] Figure 1 Shown is a schematic diagram of the explosion structure of the utility model;

[0034] Figure 2 Shown is a schematic diagram of the application structure of the upper shell of the utility model;

[0035] Figure 3 Shown is a schematic diagram of the structure of the lower shell of the utility model;

[0036] Figure 4 Shown is a schematic structural diagram of the air extraction element of the utility model;

[0037] Figure 5 Shown is a schematic diagram of the air extraction flow of the utility model. DETAILED DESCRIPTION

[0038] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0039] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0040] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present disclosure.

[0041] Example 1

[0042] like Figure 1-4 As shown, on one hand, the present application proposes a novel PM2.5 sensor device, comprising:

[0043] A housing, wherein:

[0044] The housing is provided with an air filter, an air inlet 13 and an air outlet 11, wherein the air filter is located at the air inlet 13;

[0045] The housing is provided with: a circuit board 9, a communication component 8, a laser shielding cover 5, an air extraction element 20 and an air cavity 15, wherein the communication component 8, the light sensing element inside the laser shielding cover 5 and the air extraction element 20 are electrically connected to the circuit board 9 respectively;

[0046] The sucked gas enters through the air cavity 15, is detected by the light sensing element inside the laser shielding cover 5, and the detection signal is fed back to the circuit board 9. The circuit board 9 calculates the detection signal and sends it to the communication component 8 for reporting.

[0047] The principle of gas sensing detection is not described in this embodiment, and please refer to the existing laser gas sensing principle.

[0048] like Figure 5 As shown, when air is pumped, the air pumping element 20 is activated to generate negative pressure, so that external air enters the internal air cavity through the air inlet hole and is discharged after passing through the air pumping element 20.

[0049] In the present application, an air inlet and an air outlet are provided on the shell, and an air cavity is provided inside. A filter screen and a suction element are provided at the air inlet. After being sucked and filtered externally, the air enters the air cavity. In the process of flowing through the air cavity, the sucked gas enters through the air cavity 15. After being detected by the photosensitive element inside the laser shielding cover 5, the detection signal is fed back to the circuit board 9. The circuit board 9 calculates the detection signal and sends it to the communication component 8 for reporting.

[0050] The laser shield 5 can prevent the laser element from being contaminated by dust in the gas.

[0051] After light detection, the light detection feedback signal will be sent to the circuit board, and the detection circuit will calculate to get the corresponding detection value. It can be displayed on the electronic screen on the sensor. It can also be sent to the car computer through communication components such as Bluetooth or USB communication components, or serial communication. The car computer automatically controls the air purifier or car air conditioner according to the signal fed back by the circuit board.

[0052] The communication component of this embodiment preferably uses serial communication, but may also use other types of data lines.

[0053] As an optional embodiment of the present application, optionally, the housing is composed of an upper housing 3 and a lower housing 6, and the two are fixed by screws 4;

[0054] The air inlet 13 and the air outlet 11 are both disposed on the upper shell 3 .

[0055] The specific number and position of the fixed connections are not limited in this embodiment.

[0056] As an optional embodiment of the present application, optionally, the air filter comprises:

[0057] Filter 2;

[0058] The filter cover plate 1 is matched at the air inlet hole 13 to fix the filter 2 on the air inlet hole 13 .

[0059] The air inlet 13 and the air outlet 11 arranged on the outer shell 3 of the device body, and the filter 2 arranged at the air inlet 13, can preliminarily filter large particles of impurities such as hair and fabrics in the air to prevent them from clogging the air inlet 13 and the air outlet 11 of the detection device, and the filter 2 is replaceable; through the clever structural design, the air is isolated from the electronic components outside the accommodating cavity, and the dust in the air is avoided to the greatest extent. Covering and depositing on the electronic components, the accuracy of the detection results is improved, and the life of the detection device is extended; the upper and lower shells are respectively provided with card slots and positioning ribs, which are convenient for the effective assembly between the air quality detection device and the vehicle, and achieve the technical effect of stable installation and vibration resistance.

[0060] As an optional embodiment of the present application, optionally, the air cavity 15 includes:

[0061] A second cavity 19 is provided on the lower surface of the air inlet 13 and is used for air intake. The upper edge of the second cavity 19 is connected to the first notch of the circuit board 9;

[0062] The first cavity 17 is provided on the lower shell 6 and communicates with the second cavity 19;

[0063] The third cavity 14 is disposed on the lower shell 6 and is connected to the first cavity 17 through a flow channel 18 .

[0064] The air cavity 15 includes cavities respectively arranged on the upper shell and the lower shell. Among them, the second cavity 19 is arranged at the air inlet of the upper shell, mainly used for air intake, and the upper edge of the second cavity 19 contacts a notch of the circuit board, so as to provide sampling gas to the light sensing element thereon. The remaining gas flows out through the first cavity 17 and the third cavity 14 enclosed and formed inside the lower shell and is discharged through the air outlet.

[0065] As an optional implementation scheme of the present application, optionally, the first cavity 17 is enclosed by a baffle plate disposed inside the lower shell 6 , and the baffle plate of the lower shell 6 abuts against the circuit board 9 .

[0066] A second cavity 19 is provided on the lower surface of the air inlet 13 on the upper shell 3. The second cavity 19 extends from the lower part of the upper shell 3 and protrudes from the lower surface of the upper shell 3. The edge of the second cavity 19 is embedded in the first notch of the circuit board 9, so that the measured fluid entering from the air inlet 13 directly reaches the lower shell 6 after passing through the first cavity 17. The accommodating cavity-the first cavity 17 provided on the lower shell 6 is surrounded by a baffle provided inside the lower shell, and the baffle of the lower shell 6 abuts against the circuit board 9, so that the upper shell 3 and the lower shell 6 are separated by the circuit board.

[0067] As an optional embodiment of the present application, optionally, the air cavity 15 further includes:

[0068] The ribs 16 are disposed on the inner side of the lower shell 6 and are used to support and separate the lower shell 6 from the upper shell 3 .

[0069] The setting of reinforcing ribs can, firstly, participate in the enclosure and construction of the cavity surface; secondly, it can strengthen the support between the upper and lower shells.

[0070] As an optional embodiment of the present application, the suction element 20 is optionally passed through the circuit board 9, and its air outlet surface 21 protrudes from the upper surface of the circuit board 9 and abuts against the air outlet 11. The suction element 20 can be a fan, etc., for exhausting air, and can be automatically controlled and started by the circuit board.

[0071] The exhaust element 20 passes through the circuit board, and the air outlet surface 21 of the exhaust element 20 protrudes from the upper surface of the circuit board and abuts against the air outlet hole 11 on the upper shell 3, so that the air is isolated from the electronic components outside the accommodating cavity, and dust in the air is prevented from covering and depositing on the electronic components to the greatest extent, thereby improving the accuracy of the detection result and extending the life of the detection device.

[0072] As an optional implementation scheme of the present application, optionally, it also includes:

[0073] The card slot 10 and the positioning rib 12 are used to assemble the upper shell 3 and the lower shell 6. The card slot 10 and the positioning rib 12 are respectively provided on the upper and lower shells, which facilitates the effective assembly between the air quality detection device and the vehicle, and achieves the technical effect of stable installation and vibration prevention.

[0074] As an optional implementation scheme of the present application, optionally, it also includes:

[0075] The label 7 is arranged on the outer surface of the lower housing 6. The label can be a QR code or the like, and can be used to record information such as the device number of the current sensor.

[0076] Example 2

[0077] Based on the implementation principle of Example 1, a means of transportation is proposed, including: a novel PM2.5 sensor device as described above.

[0078] The means of transportation may be a car, etc. The new PM2.5 sensor device of the present application may be used in the car to detect the air quality inside the car. The new PM2.5 sensor device may automatically control the car's air purifier to turn on automatically according to the detection results.

[0079] Specifically, the circuit board can perform automatic control according to the detection results. For example, when the detection value of PM2.5 reaches a preset value, the circuit board can send a control signal to the vehicle computer, and the vehicle computer will turn on the air purifier.

[0080] The specific control procedure is no longer within the scope of this application and is therefore not limited.

[0081] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A novel PM2.5 sensor device, characterized in that: include: A housing, wherein: The housing is provided with an air filter, an air inlet and an air outlet, wherein the air filter is located at the air inlet; The housing is provided with: a circuit board, a communication component, a laser shielding cover, an exhaust element and an air cavity, wherein the communication component, the light sensing element inside the laser shielding cover and the exhaust element are electrically connected to the circuit board respectively; The sucked gas enters through the air cavity, is detected by the light sensing element inside the laser shield, and then the detection signal is fed back to the circuit board. The circuit board then calculates the detection signal and sends it to the communication component for reporting.

2. A novel PM2.5 sensor device according to claim 1, characterized in that: The housing is composed of an upper housing and a lower housing, and the two are fixed by screws; The air inlet and the air outlet are both arranged on the upper shell.

3. A novel PM2.5 sensor device according to claim 1, characterized in that: The air filter comprises: Filter; A filter cover plate is matched at the air inlet and is used to fix the filter on the air inlet.

4. A novel PM2.5 sensor device according to claim 2, characterized in that: The air cavity comprises: A second cavity is provided on the lower surface of the air inlet hole and is used for air intake, and an upper edge of the second cavity is connected to the first notch of the circuit board; A first cavity is disposed on the lower shell and communicated with the second cavity; The third cavity is disposed on the lower shell and is communicated with the first cavity through a flow channel.

5. A novel PM2.5 sensor device according to claim 4, characterized in that: The first cavity is enclosed by a baffle plate arranged inside the lower shell, and the baffle plate of the lower shell abuts against the circuit board.

6. A novel PM2.5 sensor device according to claim 4, characterized in that: The air cavity further comprises: The ribs are arranged on the inner side surface of the lower shell and are used to support and separate the lower shell from the upper shell.

7. A novel PM2.5 sensor device according to claim 1, characterized in that: The air extraction element passes through the circuit board, and its air outlet surface protrudes from the upper surface of the circuit board (9) and abuts against the air outlet hole.

8. A novel PM2.5 sensor device according to claim 2, characterized in that: Also includes: The clamping groove and the positioning rib are used for assembling the upper shell and the lower shell.

9. A novel PM2.5 sensor device according to claim 2, characterized in that: Also includes: The label is arranged on the outer side of the lower shell.

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