CN219935663U - Dust accumulation preventing laser module of laser dust sensor - Google Patents
Dust accumulation preventing laser module of laser dust sensor Download PDFInfo
- Publication number
- CN219935663U CN219935663U CN202320643093.4U CN202320643093U CN219935663U CN 219935663 U CN219935663 U CN 219935663U CN 202320643093 U CN202320643093 U CN 202320643093U CN 219935663 U CN219935663 U CN 219935663U
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- Prior art keywords
- dust
- laser module
- laser
- module fixing
- baffle
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- 239000000428 dust Substances 0.000 title claims abstract description 97
- 230000003405 preventing effect Effects 0.000 title claims abstract description 11
- 238000009825 accumulation Methods 0.000 title abstract description 17
- 230000008021 deposition Effects 0.000 claims abstract description 6
- 238000005192 partition Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 9
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000005457 optimization Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 108091006146 Channels Proteins 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model discloses an anti-dust-accumulation laser module of a laser dust sensor, which comprises a laser module fixing seat, an air inlet and an air outlet, wherein sliding rails are fixedly arranged on two sides of the laser module fixing seat, a dustproof assembly is connected to the surfaces of the sliding rails in a sliding manner, baffles are fixedly connected to two sides of the laser module fixing seat, and a dust collection assembly is fixedly arranged at the bottom of the inner wall of the air outlet. According to the dust collection assembly, dust in the laser module fixing seat can be discharged through air flowing in the sensor using process, dust deposition is prevented, the problem that dust is easy to deposit on a laser optical device after long-time use due to the fact that an air duct inlet and an air duct outlet are communicated with the optical device in the laser module is solved, and the dust deposition preventing effect is achieved.
Description
Technical Field
The utility model relates to the technical field of laser dust sensors, in particular to an anti-dust-accumulation laser module of a laser dust sensor.
Background
The laser dust sensor module detects the concentration of dust in air by adopting an optical scattering principle, a laser emitting diode and a photoelectric detection sensor are arranged in the sensor, when the laser dust sensor module works, a laser emitting diode emits laser pulses aiming at a dust detection area, scattered light can be generated when laser encounters dust, part of the scattered light returns to the photoelectric detection sensor, the photoelectric detection sensor converts an obtained optical signal into an electric signal, and then an analysis circuit further analyzes information such as the intensity, the pulse frequency, the wavelength amplitude and the like of the scattered light in the electric signal to reflect the concentration condition of the dust in the air.
For example, the patent number is: 201720033442.5 the utility model discloses an anti-dust-accumulation laser module for a laser dust sensor, which comprises a laser module fixing seat, wherein a laser outlet hole, an air duct inlet, an air duct outlet, a photodiode hole site and a photosensitive area are arranged on the laser module fixing seat, an anti-dust-accumulation baffle is arranged outside the laser outlet hole, and the height of the anti-dust-accumulation baffle is higher than that of the laser outlet hole, so that dust is prevented from accumulating in the laser outlet hole. According to the utility model, the dust accumulation prevention baffle is added before the laser exit hole of the laser module fixing seat, so that dust in air is prevented from falling into the laser exit hole when flowing through the photosensitive area, the pollution and dust accumulation degree of optical devices in the laser exit hole is effectively reduced, and the service life of the laser dust sensor is prolonged.
Based on the search of patent numbers, the following defects in the prior art are combined:
the existing dust accumulation preventing laser module for the laser dust sensor can reduce the dust adhering to a laser emission path through the dust accumulation preventing baffle arranged outside the laser exit hole, but the dust is easy to deposit on the laser optical device after long-time use due to the fact that the air duct inlet and the air duct outlet are communicated with the optical device in the module, and therefore the service life of the laser dust sensor is affected.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model aims to provide an anti-dust-accumulation laser module of a laser dust sensor, which has the advantages of cleanness and anti-dust accumulation, and solves the problems that the service life of the laser dust sensor is influenced because dust is easy to deposit on a laser optical device after long-time use due to the fact that an air duct inlet and an air duct outlet are communicated with the optical device in the module, and dust can be reduced by arranging an anti-dust-accumulation baffle outside a laser exit hole.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a laser dust sensor's dust deposit prevention laser module, includes laser module fixing base, air intake and air outlet, the air intake is seted up at laser module fixing base front side, the air outlet is seted up at laser module fixing base rear side, the equal fixed mounting in laser module fixing base both sides has the slide rail, slide rail surface sliding connection has dustproof subassembly, the equal fixedly connected with baffle in laser module fixing base both sides, equal fixed mounting in baffle right side both sides has the connecting block, air outlet inner wall bottom fixed mounting has dust absorption subassembly.
As the preferred dustproof assembly of the utility model, the dustproof assembly comprises a baffle, the two sides of the top of the rear side of the baffle are fixedly provided with sliding blocks, one side of the baffle is fixedly provided with a sealing plate, the two sides of one side of the baffle, which is far away from the sliding blocks, are provided with mounting holes, the inside of each mounting hole is fixedly provided with a magnet, and the top of the baffle is fixedly provided with an upper cover plate.
As preferable in the utility model, the dust collection assembly comprises a mounting frame, wherein a brushless fan is fixedly arranged at the top of the mounting frame, and the brushless fan is positioned in the air outlet.
As the preferable mode of the utility model, the connecting block is made of carbon-iron materials, the position of the connecting block corresponds to that of the magnet, and the magnet is magnetically connected with the connecting block.
As the preferable mode of the utility model, the sliding block is in sliding connection with the sliding rail, the partition plate is made of plastic material, and the thickness of the partition plate is three millimeters.
Preferably, the sealing plate is made of rubber material, the thickness of the sealing plate is five millimeters, and one side of the sealing plate is contacted with the laser module fixing seat.
Compared with the prior art, the utility model has the following beneficial effects:
1. according to the dust collection type laser module, the sliding rail is arranged to be matched with the dust prevention assembly, the air outlet and the air inlet can be covered under the condition that the sensor is not used, so that dust is prevented from falling into the laser module fixing seat, the dust collection assembly is arranged to be capable of discharging the dust in the laser module fixing seat through the flowing of air in the sensor using process, dust deposition is prevented, the problem that the dust collection type laser module for the laser dust sensor is solved, although the dust collection prevention baffle is arranged outside the laser exit hole, dust attached to a laser emission path can be reduced, and because the air duct inlet and the air duct outlet are communicated with optical devices in the laser module, the dust is easy to be deposited on the laser optical devices after long-time use, and therefore the service life of the laser dust sensor is influenced is solved, and the dust collection prevention effect is achieved.
2. According to the utility model, through the cooperation of the baffle and the sliding block, a user can plug or open the air inlet by pulling the baffle conveniently, so that dust is prevented from falling into the laser module fixing seat when the laser module fixing seat is not used, the installation holes are formed for installing the magnet, the position of the baffle can be fixed through the magnet, and the upper cover plate is arranged for shielding the top of the baffle, so that the dust is prevented from entering the laser module fixing seat.
Drawings
FIG. 1 is a schematic perspective view of an anti-dust-accumulation laser module of a laser dust sensor according to the present utility model;
FIG. 2 is a schematic view of a three-dimensional explosion structure of the utility model;
fig. 3 is a schematic view of a three-dimensional explosion structure of the dustproof assembly of the utility model.
In the figure: 1. a laser module fixing seat; 2. an air inlet; 3. an air outlet; 4. a slide rail; 5. a dust-proof assembly; 50. a partition plate; 51. a slide block; 52. a sealing plate; 53. a mounting hole; 54. a magnet; 55. an upper cover plate; 6. a baffle; 7. a connecting block; 8. a dust collection assembly; 80. a mounting frame; 81. a brushless fan.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 3, the dust accumulation preventing laser module of the laser dust sensor provided by the utility model comprises a laser module fixing seat 1, an air inlet 2 and an air outlet 3, wherein the air inlet 2 is formed in the front side of the laser module fixing seat 1, the air outlet 3 is formed in the rear side of the laser module fixing seat 1, sliding rails 4 are fixedly arranged on two sides of the laser module fixing seat 1, a dust prevention component 5 is slidingly connected to the surface of the sliding rails 4, baffles 6 are fixedly connected to two sides of the laser module fixing seat 1, connecting blocks 7 are fixedly arranged on two sides of the right side of the baffles 6, and dust collection components 8 are fixedly arranged at the bottom of the inner wall of the air outlet 3.
Referring to fig. 3, the dust-proof assembly 5 includes a partition 50, both sides of the top of the rear side of the partition 50 are fixedly provided with a sliding block 51, one side of the partition 50 is fixedly provided with a sealing plate 52, both sides of the side of the partition 50 away from the sliding block 51 are provided with mounting holes 53, a magnet 54 is fixedly installed in the mounting holes 53, and the top of the partition 50 is fixedly provided with an upper cover plate 55.
As a technical optimization scheme of the utility model, through the cooperation of the baffle 50 and the sliding block 51, a user can conveniently plug or open the air inlet 2 by pulling the baffle 50, so that dust is prevented from falling into the laser module fixing seat 1 when the laser module fixing seat is not used, the installation hole 53 is formed for installing the magnet 54, the position of the baffle 50 can be fixed through the magnet 54, and the upper cover plate 55 is arranged for shielding the top of the baffle 50, so that dust is prevented from entering the laser module fixing seat 1.
Referring to fig. 2, the dust collection assembly 8 includes a mounting frame 80, a brushless fan 81 is fixedly mounted on the top of the mounting frame 80, and the brushless fan 81 is located inside the air outlet 3.
As a technical optimization scheme of the utility model, the installation frame 80 is used for fixing the brushless fan 81, and dust can be discharged from the inside of the laser module fixing seat 1 in the use process of the sensor by arranging the brushless fan 81, so that the dust is prevented from being deposited in the inside of the laser module fixing seat 1, the detection precision is improved, and the service life of optical devices is prolonged.
Referring to fig. 2, the connection block 7 is made of carbon-iron material, the connection block 7 corresponds to the magnet 54 in position, and the magnet 54 is magnetically connected with the connection block 7.
As a technical optimization scheme of the utility model, the connecting block 7 made of carbon-iron materials has higher hardness and better wear resistance, and the baffle 50 can be fixed on one side of the baffle 6 through magnetism by arranging the magnet 54 to be magnetically connected with the connecting block 7, so that the baffle 50 is prevented from moving.
Referring to fig. 2, the sliding block 51 is slidably connected to the sliding rail 4, the partition 50 is made of plastic material, and the thickness of the partition 50 is three millimeters.
According to the technical optimization scheme, the sliding block 51 is arranged to be in sliding connection with the sliding rail 4, and the partition plate 50 can be synchronously driven to move through the movement of the sliding block 51, so that the air inlet 2 and the air outlet 3 can be blocked under the condition that the sensor is not used, and dust accumulation in the laser module fixing seat 1 is prevented.
Referring to fig. 2, a sealing plate 52 is made of rubber, the thickness of the sealing plate 52 is five millimeters, and one side of the sealing plate 52 contacts with the laser module fixing seat 1.
As a technical optimization scheme of the utility model, the sealing plate 52 made of rubber material has better elasticity, and one side of the sealing plate 52 is contacted with the laser module fixing seat 1 to shield the gap between the partition plate 50 and the laser module fixing seat 1, thereby effectively preventing dust from entering from the air inlet 2.
The working principle and the using flow of the utility model are as follows: when the laser module fixing seat is used, the partition plate 50 is pushed to the right side, the magnet 54 is separated from the connecting block 7 in the process of moving the partition plate 50, the synchronous sliding block 51 moves rightwards on the sliding rail 4, when the partition plate 50 does not shield the air inlet 2 and the air outlet 3 any more, a user controls the brushless fan 81 to start, under the rotation of the brushless fan 81, air inside the laser module fixing seat 1 is accelerated to flow, so that dust inside the laser module fixing seat 1 can be taken away, the dust cannot be deposited in the laser module fixing seat 1, when the sensor does not work, the user can pull the partition plate 50 to the side of the connecting block 7, and when the magnet 54 sucks and adsorbs with the connecting block 7, the position of the partition plate 50 is fixed, so that the air inlet 2 and the air outlet 3 are blocked, and the dust is prevented from falling into the laser module fixing seat 1.
To sum up: this kind of laser dust sensor's anti-dust laser module, through setting up slide rail 4 and dustproof subassembly 5's cooperation, can cover air outlet 3 and air intake 2 under the condition that the sensor does not use, thereby prevent that the dust from falling into inside laser module fixing base 1, through setting up dust absorption subassembly 8, can be in the sensor use with the inside dust of laser module fixing base 1 through the mobile discharge of air, prevent the dust deposit, an anti-dust laser module for laser dust sensor has been solved, although set up the route of preventing dust deposit baffle can reduce the dust and be attached to laser emission through the laser exit hole outside, but because wind channel entry and wind channel export are linked together with the optics in the module, after long-time use, the dust deposits on laser optics easily, thereby influence laser dust sensor life's problem.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a laser dust sensor's dust deposit prevention laser module, includes laser module fixing base (1), air intake (2) and air outlet (3), its characterized in that: the utility model discloses a laser module fixing base, including laser module fixing base (1), laser module fixing base (1) front side, laser module fixing base (1) rear side is seted up in air outlet (3), equal fixed mounting in laser module fixing base (1) both sides has slide rail (4), slide rail (4) surface sliding connection has dustproof subassembly (5), equal fixedly connected with baffle (6) in laser module fixing base (1) both sides, equal fixed mounting in baffle (6) right side both sides has connecting block (7), dust collection subassembly (8) are had to air outlet (3) inner wall bottom fixed mounting.
2. The dust collection prevention laser module of a laser dust sensor according to claim 1, wherein: dustproof subassembly (5) are including baffle (50), the both sides at baffle (50) rear side top are all fixed mounting has slider (51), baffle (50) one side fixed mounting has closing plate (52), mounting hole (53) have all been seted up to baffle (50) one side both sides of keeping away from slider (51), inside fixed mounting of mounting hole (53) has magnet (54), baffle (50) top fixed mounting has upper cover plate (55).
3. The dust collection prevention laser module of a laser dust sensor according to claim 1, wherein: the dust collection assembly (8) comprises a mounting frame (80), a brushless fan (81) is fixedly mounted at the top of the mounting frame (80), and the brushless fan (81) is located inside the air outlet (3).
4. The dust deposition preventing laser module of a laser dust sensor of claim 2, wherein: the connecting block (7) is made of carbon-iron materials, the connecting block (7) corresponds to the magnet (54), and the magnet (54) is magnetically connected with the connecting block (7).
5. The dust deposition preventing laser module of a laser dust sensor of claim 2, wherein: the sliding block (51) is in sliding connection with the sliding rail (4), the partition plate (50) is made of plastic materials, and the thickness of the partition plate (50) is three millimeters.
6. The dust deposition preventing laser module of a laser dust sensor of claim 2, wherein: the sealing plate (52) is made of rubber, the thickness of the sealing plate (52) is five millimeters, and one side of the sealing plate (52) is contacted with the laser module fixing seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320643093.4U CN219935663U (en) | 2023-03-29 | 2023-03-29 | Dust accumulation preventing laser module of laser dust sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320643093.4U CN219935663U (en) | 2023-03-29 | 2023-03-29 | Dust accumulation preventing laser module of laser dust sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219935663U true CN219935663U (en) | 2023-10-31 |
Family
ID=88485919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320643093.4U Active CN219935663U (en) | 2023-03-29 | 2023-03-29 | Dust accumulation preventing laser module of laser dust sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219935663U (en) |
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2023
- 2023-03-29 CN CN202320643093.4U patent/CN219935663U/en active Active
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