CN117245205A - Automatic adjusting mechanism for operation parameters of laser marking machine - Google Patents
Automatic adjusting mechanism for operation parameters of laser marking machine Download PDFInfo
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- CN117245205A CN117245205A CN202310150989.3A CN202310150989A CN117245205A CN 117245205 A CN117245205 A CN 117245205A CN 202310150989 A CN202310150989 A CN 202310150989A CN 117245205 A CN117245205 A CN 117245205A
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- 238000010330 laser marking Methods 0.000 title claims abstract description 82
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 238000012937 correction Methods 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003993 interaction Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 206010017472 Fumbling Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/60—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
- Lasers (AREA)
Abstract
An automatic adjustment mechanism for operation parameters of a laser marking machine is applied to a laser marking machine; wherein the calibration pattern generator of the laser marking machine displays calibration plans presented by a plurality of different parameters on the marked object for a user to select the most satisfactory marking pattern; if the user is satisfied with the result, adjusting the parameter(s) of the laser marking to the value for later operation; if the user is not satisfied with the result, the parameter is further fine-tuned; according to the new fine tuning parameters calculated by the parameter adjuster, the correction pattern generator plans a plurality of new correction planning charts, so that a user selects a favorite chart for later operation; if desired, this step may be repeated for further fine tuning until satisfactory results are obtained, or the operation may be stopped after a set number of times, and the laser marked parameter(s) may be adjusted to this value for later operation.
Description
Technical Field
The present invention relates to laser marking, and more particularly to an automatic adjustment mechanism for operating parameters of a laser marking machine.
Background
The laser marking machine uses laser beam to achieve the purpose of marking, removing material, cutting or engraving on the laser processing object after the laser beam is processed by the lens to achieve high focusing. The marked article is typically placed on a slipway. And controlling the movement and rotation of the sliding table by using a motor system, and moving the sliding table to a position suitable for marking so as to perform marking operation. Wherein the computer calculates the marking coordinates and then controls the laser marking machine to perform marking.
The laser marking machine must be set with various parameters when activated so that the setting of the internal components of the laser marking machine meets the operational requirements. The parameters are usually set by the user according to experience values, and then corrected continuously after marking test, so as to obtain the quality required by the user. In most cases the relationship between the actual physical meaning of these parameters and the actual components is not known to the user, so the effect of these parameters on the marking pattern after change is also not known. The user inputs the parameters by himself, the user inputs the parameters without knowing the final effect, so the user often spends a lot of test time and marking times, learns in fumbling, and then obtains better marking effect, or the user does not make effective parameter planning and test, so the optimum marking parameters are not obtained finally.
Therefore, the present invention is directed to a novel automatic adjustment mechanism for operating parameters of a laser marking machine, which can automatically adjust the parameters of the laser marking machine without inputting the parameters by a user, so as to solve the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems of the prior art, and provides an automatic adjustment mechanism for operating parameters of a laser marking machine. By applying the automatic adjusting mechanism for the operation parameters of the laser marking machine, the system can set proper parameters by virtue of the logic for searching the optimal parameters according to the patterns selected by a user. The user does not need to know the physical meaning of the parameters and the interaction relation between the parameters and the actual mechanism, and only needs to indicate which sample is the best marking result in the graphs of a plurality of different parameters generated by the mechanism. And the purpose of setting the optimal parameters can be further achieved by fine adjustment. The time required by the user for parameter setting of the laser marking machine can be saved, the use efficiency of the laser marking machine is greatly improved, and the trouble of the user in the initial operation is reduced.
To achieve the above objective, the present invention provides an automatic adjustment mechanism for operating parameters of a laser marking machine, which is applied to a laser marking machine, and comprises: a computer device for determining the whole marking space according to the position and the marking direction of each laser marking machine. The computer device comprises the following components: a user interface for interacting with a user; the marking correction mechanism is connected with the at least one laser marking controller and the user interface, and the marking correction mechanism is used for planning a plurality of corresponding correction plans according to the default parameters and transmitting the correction plans to the corresponding laser marking controller so as to control the corresponding laser marking machine, and a plurality of correction marking plans are formed on the marked object according to the plurality of correction plans; wherein this marking correction mechanism includes: a correction pattern generator for planning the multiple correction plans according to the default parameters, wherein the correction pattern generator inputs the marking parameters (including coordinates) of each correction plan into the corresponding laser marking controller to make the corresponding laser marking machine mark the marked object; a parameter adjuster is connected with the correction pattern generator, finds out the corresponding parameter according to the image selected by the user, adjusts the parameter to obtain a group of new parameters, and inputs the new parameters into the corresponding laser marking controller so as to enable the corresponding laser marking machine to mark the marked object. This operation can be repeated to adjust the parameters that the user is satisfied with.
One of the modes of operation is a single parameter mode of operation, i.e., only one parameter is adjusted at a time. Comprises the following operation steps: step 700: the correction pattern generator of the laser marking machine displays a plurality of correction patterns on the marked object to select the most satisfactory marking pattern by a user; step 710: the user interface receives the most satisfactory correction plan selected by the user; step 720: if the user is satisfied with the result, adjusting the parameter of the laser marking to the value for later operation; step 730: if the user is not satisfied with the result, the parameter is further trimmed, and the parameter adjuster adjusts around the selected parameter at finer intervals to obtain a new set of trim parameters. Step 740: according to the new fine tuning parameters calculated by the parameter adjuster, the correction pattern generator plans a plurality of correction planning charts of the new parameters, so that a user selects a favorite pattern; step 750: the user interface receives the most satisfactory calibration plan selected by the user for later operation; step 760: if necessary, this step may be repeated for further fine tuning until a satisfactory result is obtained, or the operation may be stopped after a set number of times, and the parameter of the laser marking may be adjusted to this value for later operation; step 770: and in steps 720 and 760, the resulting parameters are stored in memory 160.
Another mode of operation is to correct a parameter(s) to be matched when marking a different graphic by the user selecting the graphic. The different graphs represent the overall settings of the set of parameters. If the fine tuning is needed, the parameter adjuster carries out fine tuning on the whole set of parameters according to the default setting or the default algorithm, generates another set of fine tuning parameters, and obtains a new correction picture for the user to select according to the fine tuning parameters.
A further understanding of the nature and advantages of the present invention will become apparent from the following description, read in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a schematic diagram of a laser marking machine and a laser marking controller according to the present invention.
FIG. 2 is a schematic diagram of a system of the present invention.
Fig. 3A is a two-dimensional graph of a correction map of the present invention in a rectangular shape.
Fig. 3B is a dot matrix diagram formed by the intersection of lines as a calibration plan of the present invention.
Fig. 4 shows an application example of the present invention.
Fig. 5 is a flow chart of the operational steps of the present invention.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, the automatic adjustment mechanism for the operation parameters of the laser marking machine according to the present invention is shown, and the present invention comprises the following elements:
the laser marking machine 10 is used to emit laser beams for marking. The laser beam emitted from each laser marking machine 10 can be projected onto a marked object 100, and the marked object 100 is displayed with a pattern marked by the laser beam. The laser marking machine 10 is provided with a marking vibrating mirror 12 for moving to a required marking point in the X, Y axial direction so as to project laser light for marking.
A sliding table 20, wherein the marking object 100 is placed on the sliding table 20. Wherein the sliding table 20 can be moved to a desired marking point to receive the laser beam projected by the laser marking machine 10 for marking. A motor system 30 for controlling the movement of the slide 20 to move the slide 20 to a position suitable for marking.
A laser marking controller 60. The laser marking controller 60 is used to receive the coordinate data to be marked and control the laser marking machine 10 to perform the desired marking operation on the marked object 100.
FIG. 1 is a schematic diagram of a laser marking machine 10 and a laser marking controller 60 according to the present invention. FIG. 2 is a schematic diagram of the pattern generation and layout relationship between a laser marking machine and a laser marking controller according to the present invention.
A computer device 50 determines the whole marking space and the space coordinates of the sliding table 20 according to the position and the marking direction of each laser marking machine 10.
The computer device 50 can mark the two-dimensional graph of the whole marking space, receive the marking graph 40 input by the user, and calculate the point coordinates of the marking graph 40 corresponding to the two-dimensional space according to the geometric position of the marking graph 40 in the two-dimensional space. The computer device 50 transmits the coordinates of the points in the two-dimensional space. The computer device 50 includes the following components:
a user interface 150 is provided for interaction with a user to allow the user to smoothly operate the computer to set the laser marking machine 10.
A marking correction mechanism 70 is coupled to the at least one laser marking controller 60. The marking calibration mechanism 70 plans a plurality of calibration patterns 711 according to the default parameters, and transmits the calibration patterns 711 to the corresponding laser marking controller 60 to control the corresponding laser marking machine 10, and forms a plurality of calibration patterns 711 on the marked object 100 according to the calibration patterns 711.
Wherein the marking correction mechanism 70 comprises:
a correction pattern generator 71 for generating the plurality of correction patterns 711 according to the default parameters. The correction map is shown, for example, in FIG. 3A, wherein the correction map 711 is a two-dimensional map of a plurality of rectangles (which are for illustration purposes and not intended to limit the scope of the present invention) generated by different set parameters; alternatively, as shown in fig. 3B, the correction map 711 may be formed by intersecting each horizontal line with a single line. The correction pattern generator 71 may be implemented using software or hardware components.
The calibration pattern generator 71 inputs the coordinates of each calibration pattern 711 to the corresponding laser marking controller 60 to cause the corresponding laser marking machine 10 to mark the marked object 100.
The present invention may also include a camera 72 for capturing each of the corrected marking charts 110 on the marked object 100 and transmitting the captured image patterns 721 outwardly.
A parameter adjuster 73 is connected to the correction pattern generator 71 to find out the corresponding parameters according to the image selected by the user, then adjust the parameters to obtain a new set of parameters, and input the new parameters into the correction pattern generator 71 to generate a new correction pattern 711. This operation can be repeated to adjust the parameters that the user is satisfied with. The parameter adjuster 73 may be implemented using software or hardware components.
The present invention may have two modes of operation, one being a single parameter mode of operation, step 700: wherein the calibration pattern generator 71 of the laser marking machine 10 displays a plurality of calibration patterns 711 on the marked object 100 to select the most satisfactory marking pattern by the user, refer to fig. 5.
Wherein the plurality of calibration patterns 711 are adjusted for parameters to be controlled during laser marking to generate the plurality of calibration patterns 711. Such as marking frequency, starting position of laser emission, stopping position of laser emission, marking speed, marking power, maximum frequency, minimum frequency, pulse width, etc.
Step 710: of the plurality of correction maps 711, the user interface 150 receives the user selected most satisfactory of the correction maps 711, indicating that the user accepted the graphics-related parameters. Step 720: the parameters of the laser marking may be adjusted to this value for later operation. The present invention may further be used to fine tune the parameter, for example, the parameter represents the marking frequency, and the laser marking frequency is adjusted to be close to the marking frequency. For example, the spacing between the frequencies just started is 1 unit, while the frequencies originally tested are 1, 2, 3, 4, 5, 6, 7 units, respectively. Step 730: when the user selects a satisfactory transmit frequency for unit 4, the user inputs the selected pattern via the user interface 150, and the marking correction mechanism 70 then further fine-tunes the parameter, the parameter adjuster 73 adjusts the parameter at finer intervals around the selected frequency (i.e., parameter) to obtain a set of fine-tuning parameters, such as changing the frequency spacing to 0.1 units. The frequency of the emitted laser is then set to 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3 units. Step 740: based on the new units (new trimming parameters) calculated by the parameter adjuster 73, the correction pattern generator 71 plans the new correction patterns 711; step 750: the user interface 150 then receives the user selected most satisfactory calibration plan 711 for later operation. Step 760: if desired, this step may be repeated for further fine tuning until satisfactory results are obtained, or the operation may be stopped after a set number of times and the parameters of the laser marking may be adjusted to this value for later operation. Step 770: in steps 720 and 760, the resulting parameters are stored in memory 160.
The other operation mode of the present invention is a multi-parameter operation mode, and the operation steps are the same as the above-mentioned single-parameter operation mode, and a plurality of parameters are interacted when the parameters are set, so that the parameters must be set in groups, that is, one calibration map 711 represents the integration result of the plurality of parameters, so that when the user selects one of the currently satisfactory calibration maps 711, a group of parameters is set. If fine tuning is required, the parameter adjuster 73 fine-tunes the parameters according to the default settings or default algorithm, and generates another set of calibration charts 711 for user selection. For example, during laser marking, the laser emitter and galvanometer must be controlled, and the relative position is controlled by a set of control equations, which are calculated to generate the calibration map 711 for user selection by the calibration pattern generator 71 and the parameter adjuster 73 of the laser marking machine. The set of control equations contains a plurality of parameters that are interrelated.
An example of the calibration of the present invention is described below with reference to fig. 4, in which the original parameters for marking are set, including marking speed, marking power, maximum frequency of laser pulse emission, minimum frequency of laser pulse emission, and pulse width of laser pulse. These parameters are related to the emission of the laser pulse and affect the quality of the marking line. So, at the beginning, the correction pattern generator 71 plans the plurality of correction patterns 711 according to a default set of parameters, and then the user selects the most satisfactory correction pattern 711 via the user interface 150, indicating that the user accepts the graphics-related set of parameters. The laser marked set of parameters is then adjusted to the value, and further fine-tuned according to a predetermined algorithm, and these fine-tuned parameters are input to the calibration pattern generator 71 to generate a plurality of new calibration patterns 711, which are then selected by the user. This step may be repeated for further fine tuning if desired.
The invention has the advantage that the user can find out the optimal parameters according to the selection of the graph by applying the automatic adjusting mechanism for the operation parameters of the laser marking machine. The user does not need to know the physical meaning of the parameters and the interaction relation between the parameters and the actual mechanism, and only needs to select the graph generated by the mechanism. The purpose of parameter setting can be further achieved by fine tuning, the time required by a user for setting operation of the laser marking machine is saved, and a better parameter setting mode can be found out. Greatly improves the use efficiency of the laser marking machine and reduces the trouble of a user during initial operation.
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 invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An automatic adjusting mechanism for operating parameters of a laser marking machine is characterized by being applied to the laser marking machine, wherein the laser marking machine is used for emitting laser beams for marking, a group of marking vibrating mirrors are arranged on the laser marking machine to project laser beams, and a laser marking controller is used for receiving coordinate data of a required marking and controlling the laser marking machine to perform the required marking operation on a marked object; the automatic adjustment mechanism for the operation parameters of the laser marking machine comprises:
a computer device for determining the whole marking space according to the position and the marking direction of each laser marking machine: the computer device comprises the following components:
a user interface for interacting with a user;
the marking correction mechanism is connected with at least one laser marking controller and the user interface, and the marking correction mechanism is used for planning a plurality of corresponding correction plans according to the default parameters and transmitting the correction plans to the corresponding laser marking controller so as to control the corresponding laser marking machine, and a plurality of correction marking plans are formed on the marked object according to the plurality of correction plans;
wherein this marking correction mechanism includes:
a correction pattern generator for planning the multiple correction plans according to the default parameters, wherein the correction pattern generator inputs the coordinates of each correction plan into the corresponding laser marking controller so that the corresponding laser marking machine marks the marked object;
a parameter adjuster is connected with the correction pattern generator, finds out the corresponding parameter according to the image selected by the user, adjusts the parameter to obtain a group of new parameters, and inputs the new parameters into the correction pattern generator to generate a new correction pattern; this process may be repeated to adjust the parameters that are satisfactory to the user.
2. The automatic adjustment mechanism of claim 1, wherein an operation mode is a single parameter operation mode, i.e. only one parameter is adjusted at a time.
3. The automatic adjustment mechanism for operating parameters of a laser marking machine according to claim 2, wherein the operation steps are as follows:
step 700: the correction pattern generator of the laser marking machine displays a plurality of correction patterns on the marked object to select the most satisfactory marking pattern by a user; wherein the plurality of calibration charts are adjusted for parameters to be controlled during laser marking to generate the plurality of calibration charts;
step 710: the user interface receives the most satisfactory correction plan selected by the user;
step 720: if the user is satisfied with the result, adjusting the parameter of the laser marking to the value for later operation;
step 730: if the user is not satisfied with the result, the parameter is further fine-tuned, and the parameter adjuster adjusts the parameter at finer intervals around the selected parameter to obtain a new set of parameters;
step 740: according to the new parameters calculated by the parameter adjuster, the correction pattern generator plans a plurality of new correction planning charts so that a user can select a favorite chart;
step 750: the user interface receives the most satisfactory calibration plan selected by the user for later operation;
step 760: if necessary, this step may be repeated for further fine tuning until a satisfactory result is obtained, or the operation may be stopped after a set number of times, and the parameter of the laser marking may be adjusted to this value for later operation; and
step 770: in steps 720 and 760, the resulting parameters are stored in memory.
4. The automatic adjustment mechanism for operating parameters of a laser marking machine according to claim 3, further comprising a plurality of parameters, all of which constitute a parameter set, wherein the calibration map represents a calibration map obtained after integration of the plurality of parameters; when the user selects a currently satisfactory calibration plan, the overall setting of the parameter set is represented.
5. The automatic adjustment mechanism of claim 4, wherein if fine adjustment is required, the parameter adjuster fine-adjusts the whole set of parameters according to the default setting or the default algorithm, and generates another set of calibration patterns for the user to select.
6. The automatic adjustment mechanism of claim 1, further comprising a camera for capturing each corrected marking pattern on the marked object and transmitting the captured image pattern outwards.
7. The automatic adjustment mechanism of claim 1, wherein the calibration pattern generator and the parameter adjuster are software components or hardware components.
8. The automatic adjustment mechanism of claim 1, further comprising a sliding table, wherein the marking object is placed on the sliding table, wherein the sliding table can be moved to a desired marking point to receive the laser beam projected by the laser marking machine for marking; and a motor system for controlling the movement of the slipway to move the slipway to a position suitable for marking.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW111122729A TW202400343A (en) | 2022-06-17 | 2022-06-17 | Automatic adjusting mechanism for operating parameters of laser marking machine |
| TW111122729 | 2022-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117245205A true CN117245205A (en) | 2023-12-19 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320273681.3U Active CN219632818U (en) | 2022-06-17 | 2023-02-07 | Automatic adjusting mechanism for operation parameters of laser marking machine |
| CN202310150989.3A Pending CN117245205A (en) | 2022-06-17 | 2023-02-07 | Automatic adjusting mechanism for operation parameters of laser marking machine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320273681.3U Active CN219632818U (en) | 2022-06-17 | 2023-02-07 | Automatic adjusting mechanism for operation parameters of laser marking machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN219632818U (en) |
| TW (1) | TW202400343A (en) |
-
2022
- 2022-06-17 TW TW111122729A patent/TW202400343A/en unknown
-
2023
- 2023-02-07 CN CN202320273681.3U patent/CN219632818U/en active Active
- 2023-02-07 CN CN202310150989.3A patent/CN117245205A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| TW202400343A (en) | 2024-01-01 |
| CN219632818U (en) | 2023-09-05 |
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