CN216017216U - Multi-channel combined constant-current AOI light source controller - Google Patents
Multi-channel combined constant-current AOI light source controller Download PDFInfo
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- CN216017216U CN216017216U CN202121214884.2U CN202121214884U CN216017216U CN 216017216 U CN216017216 U CN 216017216U CN 202121214884 U CN202121214884 U CN 202121214884U CN 216017216 U CN216017216 U CN 216017216U
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Abstract
The utility model relates to and discloses a multi-channel combined constant-current AOI light source controller, which comprises a power supply, 5-channel LED light source channels, screw fixing holes, a light source control main chip, a channel selection circuit and a serial port signal processing circuit.
Description
Technical Field
The embodiment of the utility model relates to the technical field of optical detection, in particular to a multi-channel combined constant-current AOI light source controller.
Background
AOI is known as automated optical inspection and is a device based on optical principles to detect common defects encountered in solder production. The AOI light source controller is a basic necessary component, and for a machine vision AOI system which needs accurate light source brightness and accurate triggering between a camera and a light source, requirements of stability, high adjustable precision and the like of the LED light source controller become one of key factors of AOI equipment. However, the common RBG + W light source of AOI detection equipment in the current market has poor effect of detecting laser engraving and silk printing and has single functional combination.
SUMMERY OF THE UTILITY MODEL
Therefore, the multi-channel combined constant-current AOI light source controller provided by the embodiment of the utility model is controlled by an upper computer, and a user selects and controls the combined AOI light source according to the requirement to output a stable and adjustable high-precision constant-current light source; the system comprises a multi-channel combined constant-current AOI light source controller, a bottom white light secondary shooting light source controller system and a bottom white light secondary shooting light source controller system.
In order to achieve the above object, an embodiment of the present invention provides the following:
the utility model provides a multichannel combination constant current AOI light source controller, includes the controller, controller upper surface difference fixedly connected with power supply, LED light source passageway, light source control main chip, passageway selection circuit and serial ports signal processing circuit, a plurality of screw fixation holes have been seted up to the controller upper surface, power supply sets up in controller upper surface lower left corner, LED light source passageway sets up in controller upper surface lower right corner, light source control main chip welds in controller upper surface middle part, passageway selection circuit welds the light source control main chip upper right side at the controller upper surface, serial ports signal processing circuit welds the passageway selection circuit top at the controller upper surface, each the screw fixation hole is seted up respectively in the controller four corners.
Further, surface thread connection has a plurality of supports under the controller, support fixed connection is on the mounting plate upper surface, a plurality of mounting brackets of fixed surface connection on the mounting plate, surface thread connection has the heat-conducting plate on the mounting bracket, surface thread connection has the heat dissipation mounting panel on the mounting plate, fixed surface connection has the heating panel on the heat dissipation mounting panel, a plurality of heat radiation fins of fixed surface connection on the heating panel.
Further, the mounting base plate and the heat dissipation mounting plate are both provided with heat dissipation mounting holes, the mounting frame and the heat conduction plate are both provided with heat conduction plate mounting holes, and the support is provided with a plurality of screw fixing holes;
further, each screw fixing hole is sleeved with a copper stud.
Further, the lower surface of the heat conducting plate is attached to the upper surface of the light source control main chip.
Further, the LED light source channels are provided with five.
Further, surface thread connection has a plurality of supports under the controller, support fixed connection is on the mounting plate upper surface, a plurality of mounting brackets of fixed surface connection on the mounting plate, surface thread connection has the heat-conducting plate on the mounting bracket, surface thread connection has the heat dissipation mounting panel on the mounting plate, fixed surface connection has the heating panel on the heat dissipation mounting panel, a plurality of heat radiation fins of fixed surface connection on the heating panel, increase heat dispersion when easy to assemble.
The embodiment of the utility model has the following advantages:
(1) the controller has 5 channels, and can combine and output light source values of the 5 channels to realize the use of the AOI visual detection equipment in different occasions; meanwhile, the problems that the RBG + W light source is poor in laser engraving and silk printing detection effect, low in false alarm rate of the detection effect and more in selection functions are solved through a bottom white light secondary shooting light source controller system for a multi-channel combined constant-current AOI light source controller; the controller adopts a constant current output mode, and has the advantages of stable and reliable output control of the AOI light source brightness value, obvious contrast, quick adjustable function, quick response, and the like; the control can be changed through a standard serial port protocol, so that the upper computer can directly control the control conveniently.
(2) The controller is arranged on the controller, the controller is installed through the installation base plate and the support, the probability that the controller is damaged by stress is reduced, the heat conducting plate is arranged on the upper surface of the controller, heat in operation is transmitted to the outside through the heat conducting plate, and then heat dissipation is carried out through the heat dissipation fins, so that the heat dissipation performance of the controller is improved, and the durability is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the attached tables used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the attached table in the following description is a related protocol of serial communication control of the controller, and the upper level needs to write and control with reference to the table protocol if the controller is required to control and change the brightness value of the light source.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic structural diagram of a multi-channel combined constant current AOI light source controller according to the present invention;
FIG. 2 is a schematic diagram of an installation structure of a multi-channel combined constant current AOI light source controller according to the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 5 is a front view of the present invention;
fig. 6 is a block diagram of the operation of the present invention.
In the figure: 1-a power supply; 2-LED light source channel; 3-screw fixing holes; 4-light source control main chip; 5-channel selection circuit; 6-serial port signal processing circuit; 7-mounting a bottom plate; 8-a mounting frame; 9-heat conducting plate; 10-heat conducting plate mounting holes; 11-a scaffold; 12-a controller; 13-a heat dissipation mounting plate; 14-heat dissipation mounting holes; 15-a heat sink; 16-heat dissipation fins.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the utility model will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the utility model and that it is not intended to limit the utility model to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-6, the utility model provides a multi-channel combined constant current AOI light source controller, wherein a power supply 1, an LED light source channel 2, a light source control main chip 4, a channel selection circuit 5 and a serial port signal processing circuit 6 are fixedly connected to the upper surface of a controller 12, a plurality of screw fixing holes 3 are formed in the upper surface of the controller 12, the power supply 1 is arranged at the lower left corner of the upper surface of the controller 12, the LED light source channel 2 is arranged at the lower right corner of the upper surface of the controller 12, the light source control main chip 4 is welded in the middle of the upper surface of the controller 12, the channel selection circuit 5 is welded at the upper right corner of the light source control main chip 4 on the upper surface of the controller 12, the serial port signal processing circuit 6 is welded above the channel selection circuit 5 on the upper surface of the controller 12, and the screw fixing holes 3 are respectively formed at four corners of the controller 12.
To better illustrate the above structure, the following will be further described with respect to its specific operation: the power supply 1 is a light source and a control loop power supply; the LED light source channel 2 distinguishes traditional 4-channel light source controllers; the screw fixing holes 3 are used for installing and fixing the controller 12 on the bottom plate of the electric box, and the screw fixing holes 3 are isolated by copper studs; the light source control main chip 4 is used for providing a constant current light source, adjusting a high-precision stable constant current LED, and the model of the selected light source control main chip 4 is ON (Anson Mei) FQPF2N 60C; the channel selection circuit 5 selects and controls the on and off of the combined channel light source for peripheral I/O input; the serial port signal processing circuit 6 changes the brightness value of the light source through RS232 communication between the upper computer and the light source controller.
As a preferable scheme of the utility model, the STM32F103C8T6 singlechip IC chip advanced timer output PWM wave is adopted for main control, and the high-precision adjustable direct-current voltage output DAC is obtained through Fourier transform second-order filtering to control FQPF2N60C to provide a constant-current light source.
As a preferred scheme of the utility model, in order to solve the problem that the RBG + W light source of AOI detection equipment in the prior art has poor effect of detecting laser engraving and silk printing, a multichannel combined constant-current AOI light source controller is provided, and a light source controller system is irradiated by white light at the bottom for two times.
As a preferred scheme of the utility model, the acquisition input circuit of the I/O port adopts an interrupt pulse capture mode to synchronously output a light source and make a stroboscopic camera shoot, so that the exposure synchronization of the camera is met.
As a preferred scheme of the present invention, 5 LED light source channels 2 can be combined by corresponding to 5I/O ports, and the brightness value of the LED light source channel 2 corresponding to the AOI requirement is selected to match with the I/O port, so as to achieve the light source contrast of different photographing states under different combined light.
As a preferred scheme of the utility model, the multi-channel combined light source controller shoots for multiple times in one FOV, the channel selection circuit 5 selects and controls the light source of the combined channel to be on or off for peripheral I/O input, and the light source combination value is rapidly changed by stroboscopic control.
In the above, it is further preferable that the lower surface of the controller 12 is in threaded connection with a plurality of brackets 11, the brackets 11 are fixedly connected to the upper surface of the mounting plate 7, the upper surface of the mounting plate 7 is fixedly connected with a plurality of mounting brackets 8, the upper surface of the mounting brackets 8 is in threaded connection with the heat conducting plate 9, the upper surface of the mounting plate 7 is in threaded connection with the heat dissipating mounting plate 13, the upper surface of the heat dissipating mounting plate 13 is fixedly connected with the heat dissipating plate 15, and the upper surface of the heat dissipating plate 15 is fixedly connected with a plurality of heat dissipating fins 16.
In order to facilitate installation, heat dissipation mounting holes 14 are formed in the mounting base plate 7 and the heat dissipation mounting plate 13, heat conduction plate mounting holes 10 are formed in the mounting frame 8 and the heat conduction plate 9, and a plurality of screw fixing holes 3 are formed in the support 11.
In order to prevent short circuit and the like when the controller 12 operates, each screw fixing hole is sleeved with a copper stud.
The purpose of the lower surface of the heat conducting plate 9 being attached to the upper surface of the light source control main chip 4 is to conduct the heat emitted during the operation of the light source control main chip 4 to the heat dissipating plate 15 through the heat conducting plate 9, and then to the outside through the heat dissipating fins 16, so as to maintain the temperature of the controller 12 and increase the durability and the service time.
Example two: the parameters or settings of some components of the utility model are shown in the following table:
TABLE 1 Serial communication parameters
| Communication protocol | RS232 |
| Baud rate | 19200 |
| |
8 |
| |
1 |
| Check bit | Is free of |
TABLE 2 light source luminance settings
TABLE 3 light source channel opening
Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A multi-channel combined constant-current AOI light source controller is characterized by comprising a controller (12), wherein the upper surface of the controller (12) is fixedly connected with a power supply (1), an LED light source channel (2), a light source control main chip (4), a channel selection circuit (5) and a serial port signal processing circuit (6) respectively, the upper surface of the controller (12) is provided with a plurality of screw fixing holes (3), the power supply (1) is arranged at the lower left corner of the upper surface of the controller (12), the LED light source channel (2) is arranged at the lower right corner of the upper surface of the controller (12), the light source control main chip (4) is welded in the middle of the upper surface of the controller (12), the channel selection circuit (5) is welded at the upper right side of the light source control main chip (4) on the upper surface of the controller (12), the serial port signal processing circuit (6) is welded above the channel selection circuit (5) on the upper surface of the controller (12), the screw fixing holes (3) are respectively arranged at four corners of the controller (12).
2. The multi-channel combined constant-current AOI light source controller according to claim 1, wherein a plurality of supports (11) are connected to the lower surface of the controller (12) in a threaded manner, the supports (11) are fixedly connected to the upper surface of the mounting plate (7), a plurality of mounting frames (8) are fixedly connected to the upper surface of the mounting plate (7), a heat conduction plate (9) is connected to the upper surface of each mounting frame (8) in a threaded manner, a heat dissipation mounting plate (13) is connected to the upper surface of the mounting plate (7) in a threaded manner, a heat dissipation plate (15) is fixedly connected to the upper surface of the heat dissipation mounting plate (13), and a plurality of heat dissipation fins (16) are fixedly connected to the upper surface of the heat dissipation plate (15).
3. The multi-channel combined constant-current AOI light source controller according to claim 2, wherein the mounting base plate (7) and the heat-dissipating mounting plate (13) are both provided with heat-dissipating mounting holes (14), the mounting frame (8) and the heat-conducting plate (9) are both provided with heat-conducting plate mounting holes (10), and the support (11) is provided with a plurality of screw fixing holes (3).
4. The multi-channel combined constant-current AOI light source controller according to claim 3, wherein each screw fixing hole (3) is sleeved with a copper stud.
5. The multi-channel combined constant-current AOI light source controller according to claim 3, wherein the lower surface of the heat conducting plate (9) is attached to the upper surface of the light source control main chip (4).
6. A multi-channel combined constant current AOI light source controller according to claim 3, wherein there are five LED light source channels (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214884.2U CN216017216U (en) | 2021-06-02 | 2021-06-02 | Multi-channel combined constant-current AOI light source controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121214884.2U CN216017216U (en) | 2021-06-02 | 2021-06-02 | Multi-channel combined constant-current AOI light source controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216017216U true CN216017216U (en) | 2022-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121214884.2U Active CN216017216U (en) | 2021-06-02 | 2021-06-02 | Multi-channel combined constant-current AOI light source controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216017216U (en) |
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2021
- 2021-06-02 CN CN202121214884.2U patent/CN216017216U/en active Active
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