Vehicle-mounted indoor space dust detection device

Abstract

A vehicle-mounted indoor space dust detection device relates to the technical field of vehicle sensors and comprises a cover plate, a fixing seat, a connecting cover, a first fan, a PCB (printed circuit board), a connector socket, a light-emitting tube, a light-receiving tube, a first lens and a second lens, the connecting cover, the first fan, the PCB and the cover plate are sequentially arranged above the fixing seat from bottom to top, the connector socket is arranged above the cover plate, and the light-emitting tube is arranged above the connector socket. A light emitting tube and a light receiving tube are arranged below the PCB; a dust removal device communicated with the fixed seat is arranged on the lower end surface of the fixed seat; the first fan drives air to flow into the light path area in the fixed seat, so that a signal value received by the light receiving tube is changed, the dust concentration in the vehicle is detected quickly and efficiently, the detection efficiency is high, external interference is reduced, and data measurement is accurate; and the dust removal device is arranged on the fixed seat and generates airflow to avoid dust deposition in the fixed seat, so that the detection accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle sensors, and in particular to a vehicle-mounted indoor space dust detection device. Background Art

[0002] The dry air holes carry a large amount of tiny particles such as dust, pollen or dandruff, which may also be attached with allergens and pollutants, causing allergies, aggravating respiratory diseases and damaging respiratory system functions. The vehicle is a closed space, and a large amount of outside air will enter the car and is difficult to discharge, resulting in a high concentration of tiny particles such as dust in the car, which has an adverse effect on the health of the passengers in the car. When the car is driving, the outside air and the air inside the car are exchanged through the air conditioner. The outside air enters the car and is deposited in the car. During driving, the flow of gas drives the dust to float in the car. It is difficult for passengers in the car to effectively detect the dust concentration in the car. In addition, during the use of traditional dust sensors, dust will accumulate on the dust sensors. After being interfered by the dust sensors, the measurement data will be greatly affected, and cannot effectively reflect the dust concentration in the car, affecting the health of the people in the car. Summary of the invention

[0003] In order to overcome the shortcomings of the background technology, the present invention discloses a vehicle-mounted indoor space dust detection device. The present invention arranges a link cover, a first fan, a PCB board, a light-emitting tube, a light-receiving tube, a first lens and a second lens between a fixing seat and a cover plate, arranges a connector socket on the cover plate, and arranges a dust removal device on the fixing seat, so as to achieve the purpose of quickly and accurately detecting the dust concentration in the vehicle.

[0004] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme: A vehicle-mounted indoor space dust detection device comprises a cover plate, a fixing seat, a connection cover, a first fan, a PCB board, a connector socket, a light-emitting tube, a light-receiving tube, a first lens and a second lens. The fixing seat is provided with a connection cover, a first fan, a PCB board and a cover plate from bottom to top in sequence. The fixing seat is fixed to the cover plate by screws. A connector socket is provided above the cover plate. A light-emitting tube and a light-receiving tube are provided below the PCB board. The light-emitting tube and the light-receiving tube are both extended downward and arranged in the fixing seat. The first fan, the connector socket, the light-emitting tube and the light-receiving tube are all electrically connected to the PCB board. A first lens and a second lens are arranged in the fixing seat. The light-emitting tube is matched with the first lens, and the light-receiving tube is matched with the second lens. A dust removal device connected to the fixing seat is provided on the lower end surface thereof. The dust removal device avoids dust deposition in the fixing seat through airflow, thereby improving detection accuracy.

[0005] An external air inlet is arranged at the lower end of the fixing seat, the dust removal device is connected with the fixing seat through the external air inlet, an external air outlet is arranged on the side of the fixing seat, and two connecting plates are symmetrically arranged on both sides of the fixing seat.

[0006] An optical path region is provided inside the fixing seat, the optical path region is communicated with the external air inlet, and a mirror refraction layer is provided on the inner wall of the fixing seat in the optical path region.

[0007] The light-emitting tube and the first lens are arranged on one side of the light path area, and the light-receiving tube and the second lens are arranged on the other side of the light path area.

[0008] The lower end of the connection cover is arranged in the fixing seat, the bottom of the connection cover is provided with an inner air inlet, the inner air inlet is connected with the optical path area, the upper end of the connection cover is provided with a guide ring, the inner air inlet is connected with the guide ring, and the first fan is arranged in the guide ring.

[0009] An inner air outlet is arranged on the side of the guide ring, and the inner air outlet is communicated with the outer air outlet.

[0010] The dust removal device includes a shell, a baffle, a second fan and a protective cover. The shell is a funnel-shaped structure. The upper end of the shell is connected to the lower end surface of the fixed seat. The side of the shell is provided with perforations. The inner wall of the shell is provided with baffles. The baffles are arranged corresponding to the perforations. The baffles cover the perforations. The baffles are hinged to the inner wall of the shell. The lower end of the shell is provided with a second fan. The air inlet end of the second fan is connected to the lower end surface of the shell. The exhaust end of the second fan is provided with a protective cover.

[0011] The dust removal device also includes a motor, a support rod, a sleeve and a scraper. The motor is arranged in the shell. The output shaft of the motor passes through a fixed seat and is arranged on one side of the light path area. A sleeve is provided on the output shaft of the motor. One end of the sleeve is connected to the output shaft. A scraper is provided on the other end of the sleeve. The sleeve and the scraper are both arranged below the light-emitting tube and the light-receiving tube.

[0012] The upper end of the shield is threadedly connected to the exhaust end of the second fan, the lower end of the shield is provided with holes for exhaust, and the inner wall of the shield is provided with an adhesive layer.

[0013] The scraper is made of elastic rubber material.

[0014] The vehicle-mounted indoor space dust detection device described in the present invention is highly practical and very convenient to use. The first fan drives the air flow into the optical path area in the fixed seat, causing the signal value received by the light receiving tube to change, thereby quickly and efficiently detecting the dust concentration in the vehicle, with high detection efficiency, reducing external interference, and making data measurement accurate; the dust removal device is arranged on the fixed seat, and the dust removal device generates airflow to avoid dust deposition in the fixed seat, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the sensor of the present invention; Figure 3An exploded view of the present invention; Figure 4 It is a three-dimensional structural diagram of the inner cover of the present invention; Figure 5 It is a schematic diagram of the position relationship between the inner cover and the base of the present invention; Figure 6 A top view of the base of the present invention; Figure 7 is a cross-sectional view of the dust removal device of the present invention; In the figure: 1. cover plate; 2. fixing seat; 3. connecting plate; 4. connector socket; 5. dust removal device; 6. external air inlet; 7. external air outlet; 8. PCB board; 9. first fan; 10. connecting cover; 11. light-emitting tube; 12. first lens; 13. light-receiving tube; 14. second lens; 15. guide ring; 16. internal air inlet; 17. internal air outlet; 18. optical path area; 19. sleeve; 20. scraper; 21. shell; 22. support rod; 23. motor; 24. perforation; 25. baffle; 26. second fan; 27. protective cover; 28. adhesive layer. DETAILED DESCRIPTION

[0016] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0017] Combined with Figures 1 to 7 A vehicle-mounted indoor space dust detection device comprises a cover plate 1, a fixing seat 2, a connection cover 10, a first fan 9, a PCB board 8, a connector socket 4, a light-emitting tube 11, a light-receiving tube 13, a first lens 12 and a second lens 14. The fixing seat 2 is provided with a connection cover 10, a first fan 9, a PCB board 8 and a cover plate 1 from bottom to top in sequence. The fixing seat 2 is fixed to the cover plate 1 by screws. A connector socket 4 is provided above the cover plate 1. A light-emitting tube 11 and a light-receiving tube 13 are provided below the PCB board 8. The light-emitting tube 11 and the light-receiving tube 13 are both extended downward and arranged in the fixing seat 2. The first fan 9, the connector socket 4, the light-emitting tube 11 and the light-receiving tube 13 are all electrically connected to the PCB board 8. A first lens 12 and a second lens 14 are provided in the fixing seat 2. The light-emitting tube 11 is matched with the first lens 12, and the light-receiving tube 13 is matched with the second lens 14. A dust removal device 5 connected to the fixing seat 2 is provided on the lower end surface thereof. The dust removal device 5 avoids dust deposition in the fixing seat 2 through airflow, thereby improving detection accuracy.

[0018] The lower end of the fixing base 2 is provided with an external air inlet 6, and the dust removal device 5 is connected with the fixing base 2 through the external air inlet 6. The air in the vehicle passes through the dust removal device 5 and enters the fixing base 2 through the external air inlet 6. An outgoing air outlet 7 is provided on the side of the fixing base 2. Two connecting plates 3 are symmetrically provided on both sides of the fixing base 2. The fixing base 2 is fixedly installed in the car through the connecting plates 3.

[0019] The fixing seat 2 is provided with an optical path region 18 inside, the optical path region 18 is communicated with the external air inlet 6 , and a mirror refractive layer is provided on the inner wall of the fixing seat 2 in the optical path region 18 .

[0020] The light emitting tube 11 and the first lens 12 are arranged on one side of the light path area 18, and the light receiving tube 13 and the second lens 14 are arranged on the other side of the light path area 18. The light emitted by the light emitting tube 11 passes through the first lens 12, is refracted by the light path area 18 and irradiates the second lens 14, and passes through the second lens 14 to be received by the light receiving tube 13.

[0021] The lower end of the connecting cover 10 is arranged in the fixing seat 2, and an inner air inlet 16 is arranged at the bottom of the connecting cover 10, and the inner air inlet 16 is connected to the optical path area 18. A guide ring 15 is arranged at the upper end of the connecting cover 10, and the inner air inlet 16 is connected to the guide ring 15. The first fan 9 is arranged in the guide ring 15. When the first fan 9 rotates, air is sucked toward the connecting cover 10, and the airflow enters the guide ring 15 through the inner air inlet 16.

[0022] An inner air outlet 17 is provided on the side of the guide ring 15 , and the inner air outlet 17 is connected to the outer air outlet 7 . The detected air enters the outer air outlet 7 through the inner air outlet 17 and is discharged through the outer air outlet 7 .

[0023] The dust removal device 5 includes a shell 21, a baffle 25, a second fan 26 and a shield 27. The shell 21 is a funnel-shaped structure. The upper end of the shell 21 is connected to the lower end surface of the fixed seat 2. The side of the shell 21 is provided with perforations 24. The inner wall of the shell 21 is provided with baffles 25. The baffles 25 are arranged corresponding to the perforations 24. The baffles 25 cover the perforations 24. The baffles 25 are hinged to the inner wall of the shell 21. During air intake, the external airflow lifts the baffle 25, and the external air enters the fixed seat 2 through the perforations 24 and the external air inlet 6. The lower end of the shell 21 is provided with a second fan 26. The air intake end of the second fan 26 is connected to the lower end surface of the shell 21. During exhaust, the baffle 25 is pressed above the perforations 24 to close the perforations 24, so that the airflow flows to the second fan 26. The exhaust end of the second fan 26 is provided with a shield 27.

[0024] The dust removal device 5 also includes a motor 23, a support rod 22, a sleeve 19 and a scraper 20. The motor 23 is arranged in the housing 21. The output shaft of the motor 23 passes through the fixed seat 2 and is arranged on one side of the light path area 18. A sleeve 19 is provided on the output shaft of the motor 23. One end of the sleeve 19 is connected to the output shaft. The other end of the sleeve 19 is provided with a scraper 20. The sleeve 19 and the scraper 20 are both arranged below the light-emitting tube 11 and the light-receiving tube 13, so that the sleeve 19 and the scraper 20 do not interfere with the refraction of light.

[0025] The upper end of the shield 27 is threadedly connected to the exhaust end of the second fan 26, and holes for exhaust are distributed at the lower end of the shield 27. An adhesive layer 28 is distributed on the inner wall of the shield 27, and the adhesive layer 28 adheres the dust in the air holes to its surface.

[0026] The scraper 20 is made of elastic rubber material. The end of the scraper 20 is against the surface of the reflective layer in the optical path area 18 to clean the dust attached to the surface. The cleaned dust is sucked out of the fixing seat 2 by the second fan 26 through the airflow.

[0027] The embodiment of the present invention discloses a vehicle-mounted indoor space dust detection device. When in use, the fixing base 2 is installed in the car through the connecting plate 3, and the connector socket 4 is connected to the car wiring harness. When in use, the first fan 9 is turned on, and the first fan 9 rotates to exhaust air in the direction of the connecting cover 10. When air is inhaled, the airflow inside the external car lifts the baffle 25, and the external air enters the optical path area 18 in the fixing base 2 through the perforation 24 and the external air inlet 6. The light emitted by the light-emitting tube 11 passes through the first lens 12, is refracted through the optical path area 18 and irradiated on the second lens 14, and passes through the second lens 14 to be received by the light receiving tube 13. When there is no dust in the optical path area 18, the signal value received by the light receiving tube 13 is fixed. When dust enters the optical path area 18, the dust will change the reflection of the light, causing the light signal value received by the light receiving tube 13 to change, thereby quickly and accurately detecting the dust concentration in the car, thereby judging the dust concentration in the car, and the airflow. The air enters the guide ring 15 through the inner air inlet 16, and the detected air enters the outer air outlet 7 through the inner air outlet 17 and is discharged through the outer air outlet 7. After the detection is completed, the motor 23 and the second fan 26 are turned on, and the output shaft of the motor 23 rotates to drive the sleeve 19 and the scraper 20 to move in the optical path area 18. The end of the scraper 20 is against the surface of the reflecting layer in the optical path area 18 to clean the dust attached to the surface. The cleaned dust is drawn out of the fixed seat 2 by the second fan 26 through the airflow. The sleeve 19 and the scraper 20 are both arranged below the light-emitting tube 11 and the light-receiving tube 13, so that the sleeve 19 and the scraper 20 do not interfere with the refraction of light. When exhausting, the baffle 25 is pressed above the perforation 24 to close the perforation 24, so that the airflow flows to the second fan 26. The adhesive layer 28 on the inner wall of the shield 27 adheres the dust in the air hole to its surface to prevent dust from spreading. The shield 27 is cleaned regularly to remove the dust on the inner wall for subsequent use.

[0028] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and approaches to specifically implement the technical solution. The above is only a preferred implementation scheme of the present invention, but technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, and all of them are within the scope of protection of the present invention.

Claims

1. A vehicle-mounted indoor space dust detection device, comprising a cover plate (1), a fixing seat (2), a connection cover (10), a first fan (9), a PCB board (8), a connector socket (4), a light-emitting tube (11), a light-receiving tube (13), a first lens (12) and a second lens (14), wherein the connection cover (10), the first fan (9), the PCB board (8) and the cover plate (1) are arranged in sequence from bottom to top above the fixing seat (2), and the fixing seat (2) and the cover plate (1) are fixed by screws, characterized in that: A connector socket (4) is provided above the cover plate (1), a light-emitting tube (11) and a light-receiving tube (13) are provided below the PCB board (8), the light-emitting tube (11) and the light-receiving tube (13) are both extended downwards and arranged in the fixing seat (2), the first fan (9), the connector socket (4), the light-emitting tube (11) and the light-receiving tube (13) are all electrically connected to the PCB board (8), a first lens (12) and a second lens (14) are provided in the fixing seat (2), the light-emitting tube (11) and the first lens (12) are arranged in coordination, and the light-receiving tube (13) and the second lens (14) are arranged in coordination, and a dust removal device (5) connected to the fixing seat (2) is provided on the lower end surface of the fixing seat (2), and the dust removal device (5) prevents dust from being deposited in the fixing seat (2) through airflow, thereby improving detection accuracy.

2. The vehicle-mounted indoor space dust detection device according to claim 1, characterized in that: An external air inlet (6) is provided at the lower end of the fixing seat (2), the dust removal device (5) is connected to the fixing seat (2) via the external air inlet (6), an external air outlet (7) is provided on the side of the fixing seat (2), and two connecting plates (3) are symmetrically provided on both sides of the fixing seat (2).

3. The vehicle-mounted indoor space dust detection device according to claim 2, characterized in that: An optical path region (18) is provided inside the fixing seat (2), the optical path region (18) is in communication with the external air inlet (6), and a mirror refractive layer is provided on the inner wall of the fixing seat (2) in the optical path region (18).

4. The vehicle-mounted indoor space dust detection device according to claim 1, characterized in that: The light-emitting tube (11) and the first lens (12) are arranged on one side of the light path area (18), and the light-receiving tube (13) and the second lens (14) are arranged on the other side of the light path area (18).

5. The vehicle-mounted indoor space dust detection device according to claim 1, characterized in that: The lower end of the connecting cover (10) is arranged in the fixing seat (2); the bottom of the connecting cover (10) is provided with an inner air inlet (16); the inner air inlet (16) is connected to the optical path area (18); the upper end of the connecting cover (10) is provided with a guide ring (15); the inner air inlet (16) is connected to the guide ring (15); and the first fan (9) is arranged in the guide ring (15).

6. The vehicle-mounted indoor space dust detection device according to claim 5, characterized in that: An inner air outlet (17) is provided on the side of the guide ring (15), and the inner air outlet (17) is connected to the outer air outlet (7).

7. The vehicle-mounted indoor space dust detection device according to claim 1, characterized in that: The dust removal device (5) comprises a shell (21), a baffle (25), a second fan (26) and a protective cover (27); the shell (21) is a funnel-shaped structure; the upper end of the shell (21) is connected to the lower end surface of the fixing seat (2); the side surface of the shell (21) is provided with perforations (24); the inner wall of the shell (21) is provided with baffles (25); the baffles (25) are arranged corresponding to the perforations (24); the baffles (25) cover the perforations (24); the baffles (25) are hinged to the inner wall of the shell (21); the lower end of the shell (21) is provided with a second fan (26); the air inlet end of the second fan (26) is connected to the lower end surface of the shell (21); and the air exhaust end of the second fan (26) is provided with a protective cover (27).

8. The vehicle-mounted indoor space dust detection device according to claim 7, characterized in that: The dust removal device (5) further comprises a motor (23), a support rod (22), a sleeve (19) and a scraper (20); the motor (23) is arranged in the housing (21); the output shaft of the motor (23) passes through the fixing seat (2) and is arranged on one side of the light path region (18); a sleeve (19) is arranged on the output shaft of the motor (23); one end of the sleeve (19) is connected to the output shaft; the other end of the sleeve (19) is provided with a scraper (20); the sleeve (19) and the scraper (20) are both arranged below the light-emitting tube (11) and the light-receiving tube (13).

9. The vehicle-mounted indoor space dust detection device according to claim 7, characterized in that: The upper end of the shield (27) is threadedly connected to the exhaust end of the second fan (26); holes for exhaust are provided at the lower end of the shield (27); and an adhesive layer (28) is provided on the inner wall of the shield (27).

10. The vehicle-mounted indoor space dust detection device according to claim 8, characterized in that: The scraper (20) is made of elastic rubber material.

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