Novel dust sensor for vehicle

Abstract

A novel vehicle dust sensor relates to the technical field of vehicle sensors and comprises an upper cover, a base, an inner cover, a fan, a PCB (printed circuit board), a connector socket, a luminous tube, a light receiving tube, a first lens and a second lens, the inner cover, the fan, the PCB and the upper cover are sequentially arranged above the base from bottom to top, the base and the upper cover are fixed through screws, the connector socket is arranged above the upper cover, and the luminous tube is arranged above the connector socket. A light-emitting tube and a light-receiving tube are arranged below the PCB and extend downwards to be arranged in the base, the fan, the connector socket, the light-emitting tube and the light-receiving tube are electrically connected with the PCB, a first lens and a second lens are arranged in the base, the light-emitting tube and the first lens are arranged in a matched mode, and the light-receiving tube and the second lens are arranged in a matched mode. Air is driven by the fan to flow into the base, so that a signal value received by the light receiving tube is changed, the dust concentration in a vehicle is detected quickly and efficiently, the detection efficiency is high, external interference is low, and data measurement is accurate.

Description

Technical Field

[0001] This utility model relates to the field of automotive sensor technology, and in particular to a novel automotive dust sensor. Background Technology

[0002] Dust carries allergens and pollutants, which can trigger allergies, exacerbate respiratory diseases, and damage lung function. In particular, in the enclosed space of a car, high dust concentrations can have adverse effects on the health of passengers. When a car is in motion, the outside air and the air inside the car are exchanged through the air conditioning, which brings dust from the outside air into the car. The dust floats inside the car and is not easily noticed by passengers. Therefore, we propose a new type of automotive dust sensor. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model discloses a novel vehicle dust sensor. This utility model achieves the purpose of quickly and accurately detecting the dust concentration inside the vehicle by setting an inner cover, a fan, a PCB board, a light-emitting tube, a light-receiving tube, a first lens, and a second lens between the base and the upper cover, and setting a connector socket on the upper cover.

[0004] To achieve the aforementioned objective, this utility model adopts the following technical solution:

[0005] A novel automotive dust sensor includes an upper cover, a base, an inner cover, a fan, a PCB board, a connector socket, a light-emitting diode, a light-receiving diode, a first lens, and a second lens. The inner cover, fan, PCB board, and upper cover are arranged sequentially from bottom to top on the base. The base and upper cover are fixed together with screws. A connector socket is located on the upper cover. A light-emitting diode and a light-receiving diode are located below the PCB board. Both the light-emitting diode and the light-receiving diode extend downwards and are disposed within the base. The fan, connector socket, light-emitting diode, and light-receiving diode are all electrically connected to the PCB board. A first lens and a second lens are disposed within the base. The light-emitting diode is configured to cooperate with the first lens, and the light-receiving diode is configured to cooperate with the second lens.

[0006] The base has a first air inlet on its bottom surface, a first air outlet on its side surface, and two fixing plates symmetrically arranged on both sides of the base.

[0007] The base has an internal optical path area, with the light-emitting tube and the first lens located on one side of the optical path area, and the light-receiving tube and the second lens located on the other side of the optical path area.

[0008] The optical path area is connected to the first air inlet, and a mirror refraction layer is provided on the inner wall of the base within the optical path area.

[0009] The lower end of the inner cover is located inside the base. The bottom of the inner cover is provided with a second air inlet, which is connected to the optical path area. The upper end of the inner cover is provided with an air guide ring, which is connected to the second air inlet. The fan is located inside the air guide ring.

[0010] The air guide ring is provided with a second air outlet on the side, and the second air outlet is communicated with the first air outlet.

[0011] The novel dust sensor for vehicle has high practicability, is very convenient to use, and can quickly and efficiently detect the dust concentration in the vehicle with low external interference and accurate data measurement. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 It is a three-dimensional structure view of the inner cover of the utility model;

[0015] Figure 4 It is a schematic view of the position relation between the inner cover and the base of the utility model;

[0016] Figure 5 It is a top view of the base of the utility model;

[0017] In the drawing: 1, upper cover; 2, base; 3, base air inlet; 4, base air outlet; 5, fixed plate; 6, connector socket; 7, PCB board; 8, fan; 9, inner cover; 10, light emitting tube; 11, light receiving tube; 12, first lens; 13, second lens; 14, air guide ring; 15, inner cover air inlet; 16, inner cover air outlet; 17, light path area. DETAILED DESCRIPTION

[0018] The utility model can be explained in detail through the following embodiments, and the purpose of the utility model is to protect all technical improvements within the scope of the utility model.

[0019] The utility model is combined with the drawings Figures 1-5The utility model provides a novel dust sensor for vehicle, including upper cover 1, base 2, inner cover 9, fan 8, PCB board 7, connector socket 6, light emitting tube 10, light receiving tube 11, first lens 12 and second lens 13, the base 2 top is equipped with inner cover 9, fan 8, PCB board 7 and upper cover 1 in proper order from bottom to top, and the base 2 is fixed with upper cover 1 through screw, and the upper cover 1 top is equipped with connector socket 6, and the PCB board 7 below is equipped with light emitting tube 10 and light receiving tube 11, and light emitting tube 10 and light receiving tube 11 all extend downwards and are arranged in the base 2, and fan 8, connector socket 6, light emitting tube 10 and light receiving tube 11 all are electrically connected with PCB board 7, and the base 2 is equipped with first lens 12 and second lens 13, and light emitting tube 10 is matched with first lens 12, and light receiving tube 11 is matched with second lens 13.

[0020] The bottom of the base 2 is provided with a first air inlet 3, and the air in the vehicle enters the base 2 through the first air inlet 3. The side of the base 2 is provided with a first air outlet 4, and the detected air is discharged through the first air outlet 4. Two fixing plates 5 are symmetrically arranged on both sides of the base 2, and the base 2 is installed in the vehicle through the fixing plates 5.

[0021] The inside of the base 2 is provided with a light path area 17. The light emitting tube 10 and the first lens 12 are arranged on one side of the light path area 17, and the light receiving tube 11 and the second lens 13 are arranged on the other side of the light path area 17.

[0022] The light path area 17 is communicated with the first air inlet 3. The inner wall of the base 2 in the light path area 17 is provided with a mirror refraction layer. The light emitted by the light emitting tube 10 is irradiated on the mirror refraction layer in the light path area 17 through the first lens 12, and then is conducted to the light receiving tube 11 by the second lens 13 after passing through the mirror refraction layer in the light path area 17.

[0023] The lower end of the inner cover 9 is arranged in the base 2. The inner cover 9 is provided with a second air inlet 15 at the bottom. The second air inlet 15 is communicated with the light path area 17. The upper end of the inner cover 9 is provided with a wind guide ring 14. The second air inlet 15 is communicated with the wind guide ring 14. The fan 8 is arranged in the wind guide ring 14. The fan 8 rotates to suck air to the inner cover 9. The airflow enters the wind guide ring 14 through the second air inlet 15.

[0024] The side of the wind guide ring 14 is provided with a second air outlet 16. The second air outlet 16 is communicated with the first air outlet 4. The detected air enters the first air outlet 4 through the second air outlet 16 and is discharged through the first air outlet 4.

[0025] The dust sensor is used by fixing the base 2 to the car through the fixing plate 5 and connecting the integrated connector socket 6 with the car wiring harness, and the fan 8 is started to rotate to the inward cover 9 direction to suck air, the air in the car enters the light path area 17 in the base 2 through the first air inlet 3, the light emitting tube 10 emits light through the first lens 12, the light is conducted to the light receiving tube 11 through the second lens 13 after being reflected by the mirror surface refraction layer of the light path area 17, when there is no dust in the light path area 17, the signal value received by the light receiving tube 11 is fixed, when dust enters the light path area 17, the dust changes the reflection of the light, so that the light signal value received by the light receiving tube 11 changes, thereby the dust concentration in the car is quickly and accurately detected, the air current enters the air guide ring 14 through the second air inlet 15, the detected air enters the first air outlet 4 through the second air outlet 16 and is discharged through the first air outlet 4.

[0026] The utility model discloses not detailed part is prior art, although the utility model has been specifically shown and introduced in combination with preferred implementation scheme, and the method and approach of the technical scheme are many, and the above-mentioned are only preferred implementation mode of the utility model, but the skilled in the art should understand that the utility model can be changed in form and in details in the utility model's spirit and scope defined by the appended claims without departing from the utility model, and all are the protection scope of the utility model.

Claims

1. A new type of dust sensor for vehicles, comprising a top cover (1), a base (2), an inner cover (9), a fan (8), a PCB board (7), a connector socket (6), a light-emitting tube (10), a light-receiving tube (11), a first lens (12) and a second lens (13), the base (2) is sequentially provided from bottom to top with the inner cover (9), the fan (8), the PCB board (7) and the top cover (1), and the base (2) and the top cover (1) are fixed by screws, characterized in that: The upper cover (1) is provided with a connector socket (6) on the top, the PCB (7) is provided with a light emitting tube (10) and a light receiving tube (11) on the bottom, the light emitting tube (10) and the light receiving tube (11) are both downwardly extended and arranged in the base (2), the fan (8), the connector socket (6), the light emitting tube (10) and the light receiving tube (11) are all electrically connected with the PCB (7), the base (2) is provided with a first lens (12) and a second lens (13) inside, the light emitting tube (10) is arranged in cooperation with the first lens (12), and the light receiving tube (11) is arranged in cooperation with the second lens (13).

2. The new dust sensor for vehicles as claimed in claim 1, wherein: The bottom surface of the base (2) is provided with a first air inlet (3), the side surface of the base (2) is provided with a first air outlet (4), and two fixed plates (5) are symmetrically arranged on the two sides of the base (2).

3. The new type dust sensor for vehicle according to claim 2, characterized in that: The inside of the base (2) is provided with a light path area (17), the light emitting tube (10) and the first lens (12) are arranged on one side of the light path area (17), and the light receiving tube (11) and the second lens (13) are arranged on the other side of the light path area (17).

4. The new type dust sensor for vehicle according to claim 3, characterized in that: The light path area (17) is communicated with the first air inlet (3), and the inner wall of the base (2) in the light path area (17) is all provided with a mirror refraction layer.

5. The new type dust sensor for vehicle as claimed in claim 1 wherein: The inner cover (9) is arranged in the base (2) at the lower end, the inner cover (9) is provided with a second air inlet (15) on the bottom, the second air inlet (15) is communicated with the light path area (17), the upper end of the inner cover (9) is provided with a wind guide ring (14), the second air inlet (15) is communicated with the wind guide ring (14), and the fan (8) is arranged in the wind guide ring (14).

6. The new type dust sensor for vehicle according to claim 5, characterized in that: The side surface of the wind guide ring (14) is provided with a second air outlet (16), and the second air outlet (16) is communicated with the first air outlet (4).

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