CN109671655B - Device and method for controlling LED phosphor sedimentation - Google Patents

Abstract

The invention discloses a device and method for controlling the settling of LED fluorescent powder. The operator only needs to input the settling time into the timer of the processor through the human-computer interaction device, and the sensor sends an induction signal to the processor to start the process when it senses the LED substrate. Timer, the timer will alarm through the alarm after the input settling time, which can remind the operator that the phosphor powder on the LED substrate has settled, and the next step such as curing and baking can be carried out, which can effectively avoid COB material dispensing The inaccurate settling time after encapsulation leads to inconsistency in the precipitation of phosphors and the drift of the color area of the product, which can effectively improve the accuracy of the color area and increase the shipment rate of the product, reducing the pressure on inventory. At the same time, it provides a strong guarantee for the standardized management and process, which can fully guarantee the product quality, and effectively guarantee the accuracy, scientificity and product quality reliability of the COB packaging process.

Description

Device and method for controlling LED phosphor sedimentation

technical field

The invention belongs to the technical field of LED packaging, and in particular relates to an LED fluorescent powder settlement control device and method.

Background technique

The sedimentation powder dispensing process is a hot spot for LED packaging and dispensing in recent years. During packaging, the phosphor powder is allowed to settle to the bottom of the LED substrate, which can make the phosphor better dissipate heat, thereby improving the reliability of the overall light source. Usually used Most methods are centrifugal sedimentation or natural sedimentation. Due to the limitation of centrifugal sedimentation, only a small amount of LED COB semi-finished products can be placed in one centrifugation, and due to the centrifugal force, it is easy to cause uneven force on the phosphor powder when used for COB light sources with large substrates. The distribution of the fluorescent powder is uneven, which in turn causes the problem of uneven light spots of the light source. Therefore, the powder spotting process of natural sedimentation is often used in the prior art.

The natural sedimentation method is affected by the sedimentation time. If the sedimentation time is not well controlled, it is easy to cause color drift, which causes difficulties in mass production. However, the existing technology often uses a timer to monitor the sedimentation time manually. This method Time-consuming and laborious and inefficient.

Contents of the invention

In order to overcome the above-mentioned technical defects, the present invention provides a LED phosphor sedimentation control device and method, which can effectively avoid the inaccurate static sedimentation time after COB material dispensing and encapsulation, which will cause inconsistent phosphor sedimentation and cause product color area drift, and effectively improve the color. Area accuracy and improve product shipment rate.

In order to solve the above problems, the present invention is realized according to the following technical solutions:

A LED phosphor sedimentation control device, comprising: a processor with multiple timers, a human-computer interaction device connected to the processor, and an induction table with multiple sensing areas;

The human-computer interaction device is used to receive the substrate information parameters input by the user, and send the substrate information parameters to the processor; the substrate information parameters include LED substrate product information, settling time parameters and sensing area parameters; The processor is used to bind a timer with the sensing area parameter, and input the settling time parameter into the bound timer;

Each of the sensing areas is provided with a sensor and an alarm connected to the processor, and the sensor is used to generate a sensing signal when sensing the LED substrate and send it to the processor; the processor is used to When the sensing signal is received, the sensing area parameter of the sensing area corresponding to the sensing signal is acquired, and the timer bound to the sensing area parameter is started; the timer is used to An alarm signal is generated when the settling time parameter is reached, so that the processor sends the alarm signal to the alarm device for alarm.

Further, it also includes a display connected to the processor, for displaying the information parameters of the substrate, the status of the timer and the status of the alarm.

Further, the sensor is used to generate an out-of-position signal when sensing that the LED substrate leaves the sensing area and send it to the alarm through the processor;

The alarm is used to stop alarming when receiving the out-of-position signal.

Further, it also includes a radio frequency label and a coding label arranged on the LED substrate; the coding label contains the information parameters of the substrate;

The sensor is a radio frequency identifier, which generates the induction signal by sensing the radio frequency tag;

The human-computer interaction device is an image recognition camera, which receives the substrate information parameters by scanning the coded label.

Further, the processor also includes a report generator, and the report generator is used to combine the information parameters of the substrate and the timing start time and timing end time of the timer with a preset report text template to generate report.

The present invention also correspondingly discloses a method for controlling the sedimentation of LED fluorescent powder, the steps of which include:

S1. The human-computer interaction device receives the substrate information parameter input by the user, and sends the substrate information parameter to the processor; the substrate information parameter includes the product information of the LED substrate, the settling time parameter and the sensing area parameter;

S2. The processor includes a plurality of timers, the processor binds a timer to the sensing area parameter, and inputs the settling time parameter into the bound timer;

S3. The sensor on a sensing area of the sensing table generates a sensing signal when sensing the LED substrate and sends it to the processor;

S4. When the processor receives the sensing signal, acquires the sensing area parameter of the sensing area corresponding to the sensing signal, and starts the timer bound to the sensing area parameter;

S5. The timer generates an alarm signal when timing to the settling time parameter, and the processor sends the alarm signal to an alarm;

S6. The alarm device alarms when receiving the alarm signal.

Further, its steps also include:

S71. The display displays the settling time parameter, the sensing area parameter, the state of the timer, and the state of the alarm.

Further, its steps also include:

S72. The sensor generates an out-of-position signal when sensing that the LED substrate leaves the sensing area and sends it to the alarm through the processor; the alarm stops when receiving the out-of-position signal Call the police.

Further, in the step S1, the human-computer interaction device is an image recognition camera, which receives the substrate information parameters by scanning the coded label set on the LED substrate; the coded label contains the substrate information parameters ;

In the step S3, the sensor is a radio frequency identifier, and generates the sensing signal by sensing a radio frequency tag disposed on the LED substrate.

Further, its steps also include:

S73. The report generator generates a report by combining the substrate information parameters, the timing start time and the timing end time of the timer with a preset report text template.

Compared with the prior art, the beneficial effects of the present invention are:

The invention discloses a device and method for controlling the settling of LED fluorescent powder. The operator only needs to input the settling time into the timer of the processor through the man-machine interaction device. Timer, the timer will alarm through the alarm after the input settling time, which can remind the operator that the phosphor powder on the LED substrate has settled, and the next step such as curing and baking can be carried out, which can effectively avoid COB material dispensing The inaccurate settling time after encapsulation leads to inconsistency in the precipitation of phosphors and the drift of the product’s color area, which effectively improves the accuracy of the color area and improves the product’s shipment rate, reducing inventory pressure. At the same time, it provides a strong guarantee for the standardized management and process, which can fully guarantee the product quality, and effectively guarantee the accuracy, scientificity and product quality reliability of the COB packaging process.

Description of drawings

FIG. 1 is a schematic structural view of the LED phosphor sedimentation control device described in Embodiment 1 of the present invention;

2 is a schematic diagram of the appearance of the LED phosphor sedimentation control device described in Embodiment 1 of the present invention;

Fig. 3 is a display schematic diagram of the display device described in Embodiment 1 of the present invention;

4 is a schematic diagram of a report generated by the report generator described in Embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of the steps of the method for controlling LED phosphor sedimentation in Embodiment 2 of the present invention.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Example 1

As shown in Fig. 1 and Fig. 2, the present embodiment 1 discloses a LED phosphor sedimentation control device, including: a processor 1 with a plurality of timers 11, a human-computer interaction device 2 connected to the processor 1 and a An induction station 3 with a plurality of induction areas 31;

The human-computer interaction device 2 is used to receive the substrate information parameter input by the user, and send the substrate information parameter to the processor 1; the substrate information parameter includes the product information of the LED substrate, the settling time parameter and the sensing area parameter; the processor 1 is used to A timer 11 is bound to the sensing area parameter, and the settling time parameter is input into the bound timer 11;

Each sensing area 31 is provided with a sensor 32 and an alarm 33 connected to the processor 1, the sensor 32 is used to generate a sensing signal when sensing the LED substrate and send it to the processor 1;

The processor 1 is used to obtain the sensing area parameter of the sensing area 31 corresponding to the sensing signal when receiving the sensing signal, and start the timer 11 bound with the sensing area parameter; the timer 11 is used for timing to the settling time parameter An alarm signal is generated, so that the processor 1 sends the alarm signal to the alarm device 33 for alarm.

Through the above-mentioned disclosed control device, the operator only needs to input the settling time into the timer of the processor through the human-computer interaction device, and the sensor sends an induction signal to the processor to start the timer when it senses the LED substrate, and the timer passes through the input After the settling time, the alarm will be sent to the alarm, which can remind the operator that the phosphor powder of the LED substrate has settled, and the next step such as curing and baking can be carried out, which can effectively avoid the inaccurate settling time of the COB material after dispensing and encapsulation. Inconsistencies in the deposition of phosphors lead to product color shifts, effectively improving the accuracy of color areas and product shipments, and reducing inventory pressure. At the same time, it provides a strong guarantee for the standardized management and process, which can fully guarantee the product quality, and effectively guarantee the accuracy, scientificity and product quality reliability of the COB packaging process.

Further, it also includes a display 4 connected to the processor, which is used to display the information parameters of the substrate, the status of the timer and the status of the alarm. One of the specific interface examples of the display is shown in FIG. 3 , which can be used to comprehensively display various information.

Further, the sensor is used to generate an out-of-position signal when sensing that the LED substrate leaves the sensing area, and sends it to the alarm through the processor 1; the alarm is used to stop the alarm when receiving the out-of-position signal. In this way, the alarm can keep alarming until the operator takes away the LED substrate for the next step of operation, which plays a supervisory role in the preparation of the LED substrate.

Specifically, in an embodiment of the present invention, the human-computer interaction device may be a keyboard.

In a further embodiment, it also includes a radio frequency tag and a coding tag arranged on the LED substrate; the coding tag contains substrate information parameters;

The sensor is a radio frequency identifier, which generates an induction signal by sensing the radio frequency tag; the radio frequency tag is sensed by the radio frequency sensor, which can quickly confirm that the LED substrate is in place.

The human-computer interaction device is an image recognition camera, which receives substrate information parameters by scanning coded labels.

Specifically, the coded label may be an image code such as a one-dimensional code or a two-dimensional code.

Further, the processor also includes a report generator, and the report generator is used to generate a report by combining the substrate information parameters and the timing start time and timing end time of the timer with a preset report text template. Specifically, an example of the report is shown in FIG. 4 , which can conduct comprehensive data collection and display on the production process for subsequent error tracing or data analysis.

Specifically, the sensor can be a gravity sensor or an infrared sensor, so that there is no need to set a label on the LED substrate, and the sensor can be sensed by directly placing the LED substrate.

Further, the alarm can be a buzzer alarm or a flashing alarm light or a combination of the two, and the operator can choose according to the actual situation in actual operation.

Example 2

As shown in Figure 5, Embodiment 2 corresponds to Embodiment 1 and discloses a method for controlling LED phosphor sedimentation. Its technical effect is similar to that of Embodiment 1, and will not be repeated here. Specifically, the steps include:

S1. The human-computer interaction device receives the substrate information parameters input by the user, and sends the substrate information parameters to the processor; the substrate information parameters include LED substrate product information, settling time parameters and sensing area parameters;

S2. The processor includes a plurality of timers, and the processor binds a timer to the sensing area parameter, and inputs the settling time parameter into the bound timer;

S3. The sensor on a sensing area of the sensing table generates a sensing signal when sensing the LED substrate and sends it to the processor;

S4. When the processor receives the sensing signal, it acquires the sensing area parameters of the sensing area corresponding to the sensing signal, and starts a timer bound to the sensing area parameters;

S5, the timer generates an alarm signal when timing to the settling time parameter, and the processor sends the alarm signal to the alarm;

S6. The alarm device alarms when receiving the alarm signal.

Further, its steps also include:

S71. The display displays the settling time parameter, the sensing area parameter, the state of the timer and the state of the alarm.

Further, its steps also include:

S72. The sensor generates an out-of-position signal when sensing that the LED substrate leaves the sensing area, and sends it to the alarm through the processor; the alarm stops alarming when receiving the out-of-position signal.

Further, its steps also include:

S73. The report generator combines the information parameters of the substrate and the timing start time and timing end time of the timer with the preset report text template to generate a report.

Further, in step S1, the human-computer interaction device is an image recognition camera, and receives the substrate information parameters by scanning the coding label set on the LED substrate; the coding label contains the substrate information parameters;

In step S3, the sensor is a radio frequency identifier, which generates a sensing signal by sensing a radio frequency tag disposed on the LED substrate.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form. Therefore, any modification, Equivalent changes and modifications all still belong to the scope of the technical solution of the present invention.

Claims (10)

1. An LED phosphor settlement control device, comprising: a processor having a plurality of timers, a human-machine interaction device connected to the processor, and an induction station having a plurality of induction areas;

the man-machine interaction device is used for receiving substrate information parameters input by a user and sending the substrate information parameters to the processor; the substrate information parameters comprise product information, sedimentation time parameters and induction area parameters of the LED substrate; the processor is used for binding one timer with the sensing area parameter and inputting the sedimentation time parameter into the bound timer;

each sensing area is provided with a sensor and an alarm which are connected to the processor, and the sensor is used for generating a sensing signal when sensing the LED substrate and sending the sensing signal to the processor; the processor is used for acquiring the induction area parameters of the induction area corresponding to the induction signal when receiving the induction signal, and starting the timer bound with the induction area parameters; the timer is used for generating an alarm signal when the sedimentation time parameter is counted, so that the processor sends the alarm signal to the alarm for alarming.

2. The LED phosphor settlement control device of claim 1, further comprising a display coupled to the processor for displaying the substrate information parameter, the status of the timer, and the status of the alarm.

3. The LED phosphor settlement control device of claim 1, wherein the sensor is configured to generate an off-position signal when the LED substrate is sensed to leave the sensing area and send the off-position signal to the alarm via the processor;

the alarm is used for stopping alarming when the dislocation signal is received.

4. The LED phosphor settlement control device of claim 1, further comprising a radio frequency tag and a coded tag disposed on the LED substrate; the coded label comprises the substrate information parameter;

the inductor is a radio frequency identifier and generates the induction signal by inducing the radio frequency tag;

the man-machine interaction device is an image recognition camera, and receives the substrate information parameters by scanning the coding label.

5. The LED phosphor settlement control device of claim 1, wherein the processor further comprises a report generator for generating a report by combining the substrate information parameter, the timing start time and the timing end time of the timer with a preset report text template.

6. The LED fluorescent powder sedimentation control method is characterized by comprising the following steps:

s1, a man-machine interaction device receives substrate information parameters input by a user and sends the substrate information parameters to a processor; the substrate information parameters comprise product information, sedimentation time parameters and induction area parameters of the LED substrate;

s2, the processor comprises a plurality of timers, binds one timer with the sensing area parameter, and inputs the settling time parameter into the bound timers;

s3, an inductor on an induction area of the induction table generates an induction signal when inducing the LED substrate and sends the induction signal to the processor;

s4, when the processor receives the induction signal, acquiring the induction area parameter of the induction area corresponding to the induction signal, and starting the timer bound with the induction area parameter;

s5, the timer generates an alarm signal when the sedimentation time parameter is counted, and the processor sends the alarm signal to an alarm;

s6, the alarm gives an alarm when receiving the alarm signal.

7. The method of controlling sedimentation of LED phosphor of claim 6, further comprising the steps of:

and S71, displaying the sedimentation time parameter, the sensing area parameter, the state of the timer and the state of the alarm by a display.

8. The method of controlling sedimentation of LED phosphor of claim 6, further comprising the steps of:

s72, when the sensor senses that the LED substrate leaves the sensing area, an off-position signal is generated and sent to the alarm through the processor; and the alarm stops alarming when receiving the dislocation signal.

9. The method according to claim 6, wherein in the step S1, the man-machine interaction device is an image recognition camera, and the substrate information parameter is received by scanning a coding tag disposed on the LED substrate; the coded label comprises the substrate information parameter;

in the step S3, the inductor is a radio frequency identifier, and the induction signal is generated by inducing a radio frequency tag disposed on the LED substrate.

10. The method of controlling sedimentation of LED phosphor of claim 6, further comprising the steps of:

s73, the report generator combines the substrate information parameters, the timing starting time and the timing ending time of the timer with a preset report text template to generate a report.