Dust extraction device of laser machine
By dividing the exhaust port into two layers and setting trumpet-shaped air holes, the problem of dust diffusion in the laser machine is solved, more efficient dust removal is achieved, and the stability and reliability of the laser beam are ensured.
Patent Information
- Application Number
- CN202422726521.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing laser machine dust extraction devices cannot effectively remove the dust generated by high-energy laser heating, causing dust to diffuse in the upper layer of the dark box, affecting the quality and stability of the laser beam.
The exhaust vent is divided into two layers, the upper and lower layers are connected to the same fan respectively, and trumpet-shaped air holes are set at the upper vent to increase the pressure difference between the inside and outside of the exhaust duct to absorb the dust higher than the lower vent.
It effectively prevents dust from accumulating in the exhaust duct, improves the dust extraction effect of the laser machine, and ensures the stability and reliability of the laser beam.
Smart Images
Figure CN223338608U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of laser machines, in particular to a dust extraction device for laser machines. Background Art
[0002] Laser film cutting is used to pattern the film layers related to photovoltaic cells. A high-peak power spot is used under the action of a high-speed galvanometer to instantly vaporize the film layer (such as BSG, PSG, amorphous silicon, etc.) in the specified area to achieve laser patterning, which is convenient for subsequent chemical etching and other processes. Laser patterning requires that the spot morphology is intact and the shape meets the specified standards. The effect directly affects the residual film layer after chemical etching, and leakage may occur when the finished product is made. High-energy laser heating cannot completely vaporize the film layer, and a large amount of dust will still be generated during the production process. The dust will escape into the laser dark box to block the laser beam or drift into optical components (such as the light path), which will affect the spot morphology.
[0003] In conventional dust extraction structures, the air outlet and the dust extraction port are positioned opposite each other, with dust being blown from the air outlet to the dust extraction port. Since the high-energy laser heats and vaporizes the film layer, the instantaneous high temperature causes the scattered dust to escape from the air flow, preventing it from being sucked away by the dust extraction port. This causes dust to spread throughout the upper layer of the darkroom, affecting the laser beam. Currently, the air extraction port is primarily a single port, which cannot accurately remove dust at different heights from the table. Furthermore, due to the table's precision requirements, the wind speed is mostly constant, exacerbating dust accumulation in the upper space and affecting the quality of the laser beam, thereby affecting the stability and reliability of the laser film opening process. In actual production, dust residue still hangs on the darkroom wall on the air-blowing side, and the dust extraction effect does not meet expectations. Utility Model Content
[0004] The purpose of the utility model is to provide a laser machine dust extraction device to solve at least one technical problem in the prior art.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a laser machine dust extraction device, comprising: a dark box and a laser table arranged at the bottom inside the dark box;
[0006] One end of the dark box is connected to an exhaust duct, and the other end of the dark box is connected to a blowing duct. The exhaust duct and the blowing duct are arranged opposite to each other, and one end of the exhaust duct and the blowing duct are both arranged above the laser table;
[0007] An air outlet is provided at one end of the exhaust duct, and the interior of the air outlet is divided into an upper air outlet and a lower air outlet;
[0008] One end of the blowing pipe is provided with a blowing port.
[0009] In some embodiments, the cross-section of the air outlet is a circular structure, and the cross-sections of the upper air outlet and the lower air outlet are both semicircular structures, and the upper air outlet is located above the lower air outlet.
[0010] In some embodiments, a partition plate is provided inside the air outlet, and the partition plate divides the area of the air outlet into two equal parts to form an upper air outlet and a lower air outlet.
[0011] In some embodiments, a plurality of air holes are evenly distributed on the end surface of the upper air outlet close to one end of the blowing outlet.
[0012] In some embodiments, the air hole is a trumpet-shaped structure.
[0013] In some embodiments, the air hole includes a first end face and a second end face, the first end face is an end away from the air blowing port, the second end face is an end close to the air blowing port, and the second end face is flush with the end face of the air exhaust port.
[0014] In certain embodiments, the pore size of the first end surface is smaller than the pore size of the second end surface.
[0015] In some embodiments, one end of the upper air outlet and one end of the lower air outlet are both connected to a fan.
[0016] Due to the application of the above technical solution, the beneficial effects of this application compared with the prior art are:
[0017] This application divides the exhaust outlet into two layers, the upper and lower air outlets are connected to the same fan, and the upper air outlet is divided into several trumpet-shaped air holes with the same cross-sectional area, thereby increasing the pressure difference between the inside and outside of the exhaust duct, sucking out dust in the space above the lower air outlet, and preventing the sucked dust from being left in the exhaust duct. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] Figure 1 This is a schematic diagram of the structure of the laser machine dust extraction device according to an embodiment of the present application;
[0020] Figure 2 This is a schematic plan view of the exhaust port of the laser machine dust extraction device according to an embodiment of the present application;
[0021] Figure 3This is a cross-sectional view of the exhaust duct of the laser machine dust extraction device described in an embodiment of the present application.
[0022] Explanation of the accompanying reference numerals: 1. exhaust duct, 2. laser table, 3. exhaust port, 301. upper air port, 302. air hole, 303. partition plate, 304. lower air port, 4. air blowing port, 5. air blowing duct. DETAILED DESCRIPTION
[0023] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.
[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0025] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.
[0026] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0027] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0029] See Figure 1-Figure 3 As shown, an embodiment of the present application provides a laser machine dust extraction device to solve at least one technical problem in the prior art.
[0030] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a laser machine dust extraction device, comprising: a dark box and a laser table 2 arranged at the bottom inside the dark box;
[0031] One end of the dark box is connected to an exhaust duct 1, and the other end of the dark box is connected to a blowing duct 5. The exhaust duct 1 and the blowing duct 5 are arranged opposite to each other, and one end of the exhaust duct 1 and the blowing duct 5 are both arranged above the laser table 2;
[0032] An exhaust port 3 is provided at one end of the exhaust duct 1, and the exhaust port 3 is internally divided into an upper air port 301 and a lower air port 304;
[0033] One end of the blowing duct 5 is provided with a blowing port 4 .
[0034] It can be understood that the bottom of the blowing duct 5 and the exhaust duct 1 are located in the same plane, ensuring that the exhaust port 3 and the blowing port 4 are positioned correspondingly.
[0035] According to the embodiment of the present invention, the cross section of the air outlet 3 is a circular structure, and the cross sections of the upper air outlet 301 and the lower air outlet 304 are both semicircular structures, and the upper air outlet 301 is located above the lower air outlet 304 .
[0036] According to an embodiment of the present invention, a partition plate 303 is provided inside the exhaust port 3, which divides the area of the exhaust port 3 into two equal parts to form an upper air port 301 and a lower air port 304. The end face of the upper air port 301 close to one end of the blowing port 4 is evenly distributed with a number of air holes 302.
[0037] It should be noted that the area of the lower air outlet remains unchanged, and an upper air outlet of the same area is added, and the upper air outlet is divided into several trumpet-shaped (outer diameter is larger than inner diameter) small air outlets with the same cross-sectional area.
[0038] According to an embodiment of the present invention, the air hole 302 is a trumpet-shaped structure.
[0039] It should be noted that the purpose of setting the air hole 302 in a trumpet shape is to prevent the sucked dust from being placed in the exhaust duct 1, thereby improving the dust extraction effect.
[0040] Specifically, the air hole 302 includes a first end face and a second end face, the first end face is the end away from the blowing port 4, the second end face is the end close to the blowing port 4, and the second end face is flush with the end face of the exhaust port 3, and the aperture of the first end face is smaller than the aperture of the second end face.
[0041] According to the embodiment of the present invention, one end of the upper air outlet 301 and the lower air outlet 304 are both connected to a fan.
[0042] To sum up, the present application divides the exhaust port 3 into two layers, the upper layer air port 301 and the lower layer air port 304 are connected to the same fan, and the upper air port is divided into several trumpet-shaped air holes 302 with the same cross-sectional area, thereby increasing the internal and external pressure difference of the exhaust duct 1, sucking away dust in the space above the lower air port, and preventing the sucked dust from being left in the exhaust duct 1.
[0043] Finally, it should be noted that the above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.
Claims
1. A laser machine dust extraction device, comprising: A dark box and a laser table arranged at the bottom of the dark box; characterized in that, One end of the dark box is connected to an exhaust duct, and the other end of the dark box is connected to a blowing duct. The exhaust duct and the blowing duct are arranged opposite to each other, and one end of the exhaust duct and the blowing duct are both arranged above the laser table; An air outlet is provided at one end of the exhaust duct, and the interior of the air outlet is divided into an upper air outlet and a lower air outlet; One end of the blowing pipe is provided with a blowing port.
2. The laser machine dust extraction device according to claim 1, characterized in that: The cross section of the air outlet is a circular structure, and the cross sections of the upper air outlet and the lower air outlet are both semicircular structures, and the upper air outlet is located above the lower air outlet.
3. The laser machine dust extraction device according to claim 2, characterized in that: A partition plate is provided inside the air outlet, and the partition plate divides the area of the air outlet into two equal parts to form an upper air outlet and a lower air outlet.
4. The laser machine dust extraction device according to claim 1, characterized in that: The end surface of the upper air outlet close to one end of the blowing outlet is uniformly distributed with a plurality of air holes.
5. The laser machine dust extraction device according to claim 4, characterized in that: The air hole is a trumpet-shaped structure.
6. The laser machine dust extraction device according to claim 5, characterized in that: The air hole includes a first end face and a second end face, the first end face is an end away from the air blowing port, the second end face is an end close to the air blowing port, and the second end face is flush with the end face of the air exhaust port.
7. The laser machine dust extraction device according to claim 6, characterized in that: The aperture of the first end surface is smaller than the aperture of the second end surface.
8. The laser machine dust extraction device according to claim 1, characterized in that: One end of the upper air outlet and the lower air outlet are both connected to a fan.