CN211318118U

CN211318118U - Laser dust sensor

Info

Publication number: CN211318118U
Application number: CN201922098219.0U
Authority: CN
Inventors: 李庆山; 陈敏; 吴超; 赵春剑
Original assignee: Suzhou Hanlin Automotive Technology Co ltd
Current assignee: Suzhou Hanlin Automotive Technology Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-21
Anticipated expiration: 2029-11-29

Abstract

The utility model discloses a laser dust sensor mainly includes: the utility model provides a fan, the utility model discloses a fan, including epitheca, inferior valve, laser module, fan and PCBA board, be provided with draw-in groove A and draw-in groove B in the epitheca, draw-in groove A's shape and laser module phase-match, draw-in groove B's shape and fan phase-match, the laser module sets up in draw-in groove A, the fan sets up in draw-in groove B, the PCBA board sets up on the fan, air intake and air outlet have been seted up to the lateral wall department of epitheca, the position and the fan of air intake are corresponding, the position and the laser module of air outlet are corresponding, form the wind channel between air intake, fan, laser module, the air outlet. In this way, the utility model discloses can solve current dust sensor structure complicacy, the problem of difficult assembly.

Description

Laser dust sensor

Technical Field

The utility model relates to a dust sensor field especially relates to a laser dust sensor.

Background

The existing infrared dust sensor is characterized in that an infrared light emitting tube irradiates infrared light onto an air column through a lens, a receiving tube forms a certain included angle with the infrared light through the lens, dust irradiated by the infrared light is received, and the air quality is judged through the quantity of dust particles.

The technical problem that current infrared dust sensor structure exists has three: 1. the detection precision is low, 2, the lens is easy to be stuck with dust, 3, the structure is complex, and the assembly is not easy.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a laser dust sensor, can solve current dust sensor structure complicacy, the difficult problem of assembling.

In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a laser dust sensor, mainly comprising: the utility model provides a fan, the utility model discloses a fan, including epitheca, inferior valve, laser module, fan and PCBA board, be provided with draw-in groove A and draw-in groove B in the epitheca, draw-in groove A's shape and laser module phase-match, draw-in groove B's shape and fan phase-match, the laser module sets up in draw-in groove A, the fan sets up in draw-in groove B, the PCBA board sets up on the fan, air intake and air outlet have been seted up to the lateral wall department of epitheca, the position and the fan of air intake are corresponding, the position and the laser module of air outlet are corresponding, form the wind channel between air intake, fan, laser module, the air outlet.

In a preferred embodiment of the present invention, the PCBA board has a plurality of connectors, the plurality of connectors are electrically connected to the fan and the laser module respectively, a power interface is disposed at the upper case or the lower case, the power interface is electrically connected to the PCBA board, and the fan and the laser module are powered through the connectors of the PCBA board.

In the present invention, a plurality of partition plates are disposed in the slot a, the laser module is disposed on the partition plates, the partition plates are added, and the heat dissipation effect of the laser module is improved.

In the utility model discloses a preferred embodiment, the lateral wall department of epitheca is provided with a plurality of buckles, and is corresponding the lateral wall department of inferior valve is provided with a plurality of knot points that match with it, connects through the buckle, and the assembly is simple and convenient.

In a preferred embodiment of the present invention, the air inlet and/or the air outlet is provided with a grille to prevent foreign objects from entering the housing.

The utility model has the advantages that: the utility model has the advantages that the whole structure is simple as a whole, through buckle formula structure, the assembly is simple and convenient, and adopts special laser module inspection dust, and it is high to detect the precision, is difficult for being stained with the ash.

Drawings

Fig. 1 is a schematic diagram of an explosion structure of a preferred embodiment of the laser dust sensor of the present invention;

FIG. 2 is a schematic perspective view of the upper housing;

FIG. 3 is a schematic perspective view of the upper housing shown from another angle;

fig. 4 is a perspective view of the lower case;

FIG. 5 is a schematic perspective view of the PCBA board shown;

the parts in the drawings are numbered as follows: 1. the laser module comprises an upper shell, 2, a laser module, 3, a fan, 4, a PCBA board, 5, a lower shell, 6, a power interface, 11, an air inlet, 12, an air outlet, 13, clamping grooves A and 14, clamping grooves B and 15, a buckle, 16, a partition board, 41, a connector assembly, 51 and a buckling point.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1 to 3, an embodiment of the present invention includes:

a laser dust sensor, comprising: epitheca 1, inferior valve 5, laser module 2, fan 3 and PCBA board 4, be provided with draw-in groove A13 and draw-in groove B14 in the epitheca 1, draw-in groove A13's shape and laser module 2 phase-match, draw-in groove B14's shape and fan 3 phase-match, laser module 2 sets up in draw-in groove A13, fan 3 sets up in draw-in groove B14, PCBA board 4 sets up on fan 3, air intake 11 and air outlet 12 have been seted up to the lateral wall department of epitheca 1, the position of air intake 11 is corresponding with fan 3, the position of air outlet 12 is corresponding with laser module 2, form the wind channel between air intake 11, fan 3, laser module 2, the air outlet 12, be connected through the buckle between epitheca 1 and the inferior valve 5.

As shown in fig. 5, the PCBA board 4 has a plurality of connectors 41, the plurality of connectors 41 are respectively electrically connected to the fan 3 and the laser module 2, the upper case 1 or the lower case 5 is provided with a power interface 6, the power interface 6 is electrically connected to the PCBA board 4, and the fan 3 and the laser module 2 are powered through the connectors of the PCBA board 4.

As shown in fig. 2, a plurality of partition boards 16 are arranged in the clamping groove a13, the partition boards 16 are of a 'feng' shape, the laser module 2 is arranged on the partition boards 16, the laser module 2 and the partition boards 16 can be fixed by screws, and due to the fact that the partition boards 16 are internally provided with the cavities, when wind coming from the fan 3 blows over the partition boards 16, partial heat can be taken away, and the heat dissipation effect of the laser module 2 is improved.

As shown in fig. 2 and 4, a plurality of buckles 15 are arranged on the side wall of the upper shell 1, correspondingly, a plurality of buckling points 51 matched with the buckles are arranged on the side wall of the lower shell 5, and the buckles 15 are connected with each other, so that the buckles 15 are only required to be pressed into the buckling points 51 during installation, and the assembly is simple and convenient. When the buckle 15 is detached, the end of the buckle 15 is broken outward, so that the buckle 15 can be separated from the buckling point 51.

The utility model discloses a theory of operation does: the fan 3 sucks air from the air inlet 11 of the upper shell 1, the air quality is detected when the air flows through the laser module 2, and the air is blown out from the air outlet 12 of the upper shell to finish the air detection process.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A laser dust sensor is characterized by mainly comprising: the utility model provides a fan, the utility model discloses a fan, including epitheca, inferior valve, laser module, fan and PCBA board, be provided with draw-in groove A and draw-in groove B in the epitheca, draw-in groove A's shape and laser module phase-match, draw-in groove B's shape and fan phase-match, the laser module sets up in draw-in groove A, the fan sets up in draw-in groove B, the PCBA board sets up on the fan, air intake and air outlet have been seted up to the lateral wall department of epitheca, the position and the fan of air intake are corresponding, the position and the laser module of air outlet are corresponding, form the wind channel between air intake, fan, laser module, the air outlet.

2. The laser dust sensor as claimed in claim 1, wherein the PCBA has a plurality of connectors, and the plurality of connectors are electrically connected to the blower and the laser module, respectively.

3. The laser dust sensor as claimed in claim 1, wherein a power interface is provided at the upper case or the lower case, and the power interface is electrically connected with the PCBA board.

4. The laser dust sensor as claimed in claim 1, wherein a plurality of partitions are disposed in the slot a, and the laser module is disposed on the partitions.

5. The laser dust sensor as claimed in claim 1, wherein a plurality of fasteners are disposed on the side wall of the upper housing, and a plurality of fastening points are correspondingly disposed on the side wall of the lower housing.

6. The laser dust sensor as claimed in claim 1, wherein the air inlet and/or the air outlet is provided with a grating.