Laser seal welding equipment temperature monitoring system and laser seal welding equipment

Abstract

The embodiment of the utility model relates to a laser sealing welding equipment temperature monitoring system and laser sealing welding equipment, and the system comprises a processing unit which is installed on a circuit board, a monitoring unit, an alarm unit and an isolation unit which are in communication connection with the processing unit, and a relay which is in communication connection with the isolation unit. According to the emergency stop switch in communication connection with the relay, when the monitored temperatures of three core parts of the laser sealing and welding equipment exceed a preset threshold value, a worker is informed through at least one alarm prompt, emergency stop operation is automatically conducted on the laser sealing and welding equipment through the isolation unit and the relay, manual intervention is not needed in the whole process, full-automatic operation is achieved, and the working efficiency is improved. And serious damage to laser sealing welding equipment caused by high temperature is avoided.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of laser sealing equipment temperature monitoring systems, and particularly relate to a laser sealing equipment temperature monitoring system and a laser sealing equipment. BACKGROUND

[0002] Microelectronic assembly technology (referred to as "micro assembly") is a kind of assembly technology based on bare chips that has developed the fastest since the 1990s, mainly composed of eutectic patch, epoxy patch, connector sintering, printed board sintering, electrical assembly welding, cleaning, wire bonding, cap sealing and other processes. Among them, the cap sealing process is currently commonly used laser sealing process, and the laser sealing equipment will generate a lot of heat when working normally. If the heat is not released in time, the focusing mirror, mirror, light source and other parts of the equipment will be damaged, so real-time monitoring of the temperature of the core components is an important prerequisite for ensuring the operation of the equipment.

[0003] The laser sealing equipment on the market currently has an imperfect temperature monitoring system: for example, the temperature monitoring points are not comprehensive, and the specific temperature of the monitoring points cannot be displayed in real time. If the cold water system fails, the heat generating parts of the laser sealing equipment will not be discovered in time. For example, if the circulating water pipe of the cold water system is blocked, the temperature of the cold water tank monitored by the system will still be normal, but the surface temperature of the laser head, collimation module, light source and other components will reach or exceed the limit value, and high temperature will accelerate the aging of important components in the laser sealing equipment, and in severe cases, the core components will be burned out. SUMMARY

[0004] Therefore, embodiments of the present application propose a laser sealing equipment temperature monitoring system and a laser sealing equipment, which aims to multi-point temperature measurement and multi-point monitoring of the core components of the laser sealing equipment, so as to avoid serious damage to the laser sealing equipment caused by high temperature.

[0005] To achieve the above object, embodiments of the present application provide a laser sealing equipment temperature monitoring system, comprising: a processing unit, a monitoring unit, an alarm unit and an isolation unit which are all installed on a circuit board and are respectively in communication connection with the processing unit, a relay which is in communication connection with the isolation unit, and an emergency stop switch which is in communication connection with the relay, wherein the monitoring unit is configured to collect a light source temperature of the laser sealing equipment to obtain a first temperature value, collect a focusing mirror temperature of the laser sealing equipment to obtain a second temperature value, and collect an optical fiber waterway temperature of the laser sealing equipment to obtain a third temperature value, and the monitoring unit is further configured to send the first temperature value, the second temperature value and the third temperature value to the processing unit respectively; the processing unit is configured to compare the first temperature value with a first preset value to obtain a first output signal, compare the second temperature value with a second preset value to obtain a second output signal, and compare the third temperature value with a third preset value to obtain a third output signal, and the processing unit is further configured to send at least one of the first output signal, the second output signal and the third output signal to the alarm unit and the isolation unit; the alarm unit is configured to output at least one alarm prompt according to at least one of the first output signal, the second output signal and the third output signal; and the isolation unit is configured to send a first circuit breaking signal to the relay according to the at least one alarm prompt, and the relay is configured to control the relay to turn off the emergency stop switch according to the first circuit breaking signal so as to stop the laser sealing equipment from working.

[0006] Optionally, the processing unit is a single-chip microcomputer.

[0007] Optionally, the monitoring unit comprises: a first temperature sensor which is in communication connection with a first monitoring point of the circuit, and the first monitoring point is in communication connection with a GPIO4 port of the single-chip microcomputer; a second temperature sensor which is in communication connection with a second monitoring point of the circuit board, and the second monitoring point is in communication connection with a GPIO5 port of the single-chip microcomputer; and a third temperature sensor which is in communication connection with a third monitoring point of the circuit board, and the third monitoring point is in communication connection with a GPIO6 port of the single-chip microcomputer; wherein the first temperature sensor is configured to collect the light source temperature of the laser sealing equipment to obtain the first temperature value and send the first temperature value to the processing unit; the second temperature sensor is configured to collect the focusing mirror temperature of the laser sealing equipment to obtain the second temperature value and send the second temperature value to the processing unit; and the third temperature sensor is configured to collect the optical fiber waterway temperature of the laser sealing equipment to obtain the third temperature value and send the third temperature value to the processing unit.

[0008] Optionally, the alarm unit comprises: a plurality of alarm indicators installed on the circuit board, the plurality of alarm indicators being in communication connection with the GPIO7 port and / or the GPIO8 port and / or the GPIO9 port of the single-chip microcomputer; a buzzer installed on the circuit board, the buzzer being in communication connection with the GPIO10 port of the single-chip microcomputer; and an OLED display screen installed on the circuit board, the OLED display screen being in communication connection with the GPIO12 port and the GPIO13 port of the single-chip microcomputer; wherein the plurality of alarm indicators, the buzzer and the OLED display screen are used to simultaneously output the first alarm prompt, the second alarm prompt and the third alarm prompt, respectively, according to at least one of the first output signal, the second output signal and the third output signal.

[0009] Optionally, the isolation unit is an optical coupling isolator.

[0010] Optionally, the laser sealing equipment temperature monitoring system further comprises: a first button installed on the circuit board, the first button being in communication connection with the GPIO1 port of the single-chip microcomputer; a second button installed on the circuit board, the second button being in communication connection with the GPIO2 port of the single-chip microcomputer; and a third button installed on the circuit board, the third button being in communication connection with the GPIO3 port of the single-chip microcomputer; the first button is used to generate a reset signal to reset the single-chip microcomputer; the second button is used to generate a mute signal to eliminate the second alarm prompt; and the third button is used to generate an emergency stop signal to send a second open circuit signal to the relay through the single-chip microcomputer and the optical coupling isolator, so that the relay opens the emergency stop switch.

[0011] To achieve the above-mentioned purpose, the embodiments of the present application also provide a laser sealing equipment comprising the laser sealing equipment temperature monitoring system provided by any of the preceding embodiments.

[0012] The embodiment of the application provides a laser sealing equipment temperature monitoring system and laser sealing equipment, which are characterized by comprising a processing unit, a monitoring unit, an alarm unit and an isolation unit which are all installed on a circuit board and are in communication connection with the processing unit, a relay which is in communication connection with the isolation unit, and an emergency stop switch which is in communication connection with the relay, wherein the monitoring unit is used for collecting the light source temperature of the laser sealing equipment to obtain a first temperature value, collecting the focusing mirror temperature of the laser sealing equipment to obtain a second temperature value, and collecting the optical fiber waterway temperature of the laser sealing equipment to obtain a third temperature value, and the monitoring unit is further used for sending the first temperature value, the second temperature value and the third temperature value to the processing unit respectively; the processing unit is used for comparing the first temperature value with a first preset value to obtain a first output signal, comparing the second temperature value with a second preset value to obtain a second output signal, and comparing the third temperature value with a third preset value to obtain a third output signal, and the processing unit is further used for sending at least one of the first output signal, the second output signal and the third output signal to the alarm unit and the isolation unit; the alarm unit is used for simultaneously outputting at least one alarm prompt according to at least one of the first output signal, the second output signal and the third output signal; the isolation unit is used for sending a first circuit breaking signal to the relay according to the at least one alarm prompt; and the relay is used for controlling the relay to close the emergency stop switch according to the first circuit breaking signal, so that the laser sealing equipment stops working. When the monitoring temperatures of three core parts of the laser sealing equipment exceed preset threshold values, at least one alarm prompt is used to inform the staff, and the relay is used to automatically perform an emergency stop operation on the laser sealing equipment, so that the whole process is automatically performed without manual intervention, and serious damage of the laser sealing equipment caused by high temperature is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a structural schematic diagram of a laser sealing equipment temperature monitoring system according to an embodiment of the application;

[0014] Figure 2 FIG. 2 is a connection relationship diagram of a laser sealing equipment temperature monitoring system according to an embodiment of the application;

[0015] Figure 3 FIG. 3 is a laser sealing equipment temperature monitoring work flowchart according to an embodiment of the application;

[0016] Figure 4 FIG. 4 is a minimum system physical diagram of a laser sealing equipment temperature monitoring system according to an embodiment of the application. DETAILED DESCRIPTION

[0017] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are presented in order to make the readers better understand the present application. However, the technical solutions claimed by the present application can be implemented even without these technical details and based on various changes and modifications of the following embodiments. The division of the following embodiments is for the convenience of description, and should not constitute any limitation on the specific implementation manners of the present application. The embodiments can be combined and referenced with each other without contradiction.

[0018] The laser sealing process of the microwave assembly requires stable operation of the equipment. The laser sealing equipment generates a large amount of heat when working normally. If the heat is not released in time, the focusing mirror, the mirror, the light source, and other parts of the equipment will be damaged. Therefore, real-time monitoring of the temperature of the core components is an important prerequisite for ensuring the operation of the equipment. Most of the laser sealing equipment on the market is equipped with a cold water system to cool the equipment. The temperature monitoring point is the temperature value of the cooling liquid in the cold water system. However, if the cold water equipment fails, such as blockage of the circulating water path or failure of the circulating water pump, the temperature near the laser head cannot be monitored at this time, which will cause the core components of the laser generator to be burned out, causing serious losses.

[0019] To solve the above problems, the present application provides a laser sealing equipment temperature monitoring system, Figure 1 is a structural schematic diagram of the laser sealing equipment temperature monitoring system provided in an embodiment of the present application, with reference to Figure 1The temperature monitoring system of the laser sealing device comprises a processing unit 100, a monitoring unit 120, an alarm unit 130 and an isolation unit 200, and a relay 300, wherein the monitoring unit 120 is configured to collect the light source temperature of the laser sealing device to obtain a first temperature value, collect the focusing mirror temperature of the laser sealing device to obtain a second temperature value, and collect the optical fiber waterway temperature of the laser sealing device to obtain a third temperature value; the processing unit 100 is configured to compare the first temperature value with a first preset value to obtain a first output signal, compare the second temperature value with a second preset value to obtain a second output signal, and compare the third temperature value with a third preset value to obtain a third output signal; the processing unit 100 is further configured to send at least one of the first output signal, the second output signal and the third output signal to the alarm unit 130 and the isolation unit 200; the alarm unit 130 is configured to output at least one alarm prompt according to at least one of the first output signal, the second output signal and the third output signal; the isolation unit 200 is configured to send a first tripping signal to the relay 300 according to the at least one alarm prompt; and the relay 300 is configured to close an emergency stop switch of the laser sealing device according to the first tripping signal to stop the laser sealing device from working.

[0020] Specifically, the application adopts a multi-point temperature measurement method to solve the problem of excessive temperature of the core components of the laser sealing device. The core components include focusing mirrors, mirrors, light sources and other components. The multi-point temperature measurement comprises collecting the light source temperature of the laser sealing device by the monitoring unit 120 to obtain a first temperature value, collecting the focusing mirror temperature of the laser sealing device to obtain a second temperature value, and collecting the optical fiber waterway temperature of the laser sealing device to obtain a third temperature value. After collecting the first temperature value, the second temperature value and the third temperature value, the monitoring unit 120 is further configured to send the first temperature value, the second temperature value and the third temperature value to the processing unit 100. Figure 2, the monitoring point ① part is the light source position, the monitoring point ② part is the focusing mirror position, and the monitoring point ③ part is the optical fiber waterway position. The processing unit 100 compares the first temperature value with the first preset value to obtain a first output signal, compares the second temperature value with the second preset value to obtain a second output signal, and compares the third temperature value with the third preset value to obtain a third output signal. It is worth mentioning that the first preset value, the second preset value, and the third preset value can be set according to the temperature tolerance of each component. It should be noted that the processing unit 100 in the present application can realize the comparison of the first temperature value, the second temperature value, and the third temperature value with the first preset value, the second preset value, and the third preset value, respectively, by using the comparator function. If at least one temperature value is greater than the preset value, at least one alarm prompt can be output, and the laser sealing and welding equipment is stopped by closing the emergency stop switch of the laser sealing and welding equipment through the isolation unit 200 and the relay 300.

[0021] In the embodiment of the present application, the processing unit 100 is a single-chip microcomputer. The single-chip microcomputer has the characteristics of rich functions, easy expansion, and multiple output and multiple input, so it is suitable to use the single-chip microcomputer as the processing unit 100 in the present application.

[0022] In the embodiment of the present application, the monitoring unit 120 includes: a first temperature sensor, which is in communication connection with the first monitoring point 121 of the circuit board and is in communication connection with the GPIO4 port of the single-chip microcomputer; a second temperature sensor, which is in communication connection with the second monitoring point 122 of the circuit board and is in communication connection with the GPIO5 port of the single-chip microcomputer; and a third temperature sensor, which is in communication connection with the third monitoring point 123 of the circuit board and is in communication connection with the GPIO6 port of the single-chip microcomputer. The first temperature sensor is used to collect the light source temperature of the laser sealing and welding equipment to obtain a first temperature value and send the first temperature value to the processing unit 100. The second temperature sensor is used to collect the focusing mirror temperature of the laser sealing and welding equipment to obtain a second temperature value and send the second temperature value to the processing unit 100. The third temperature sensor is used to collect the optical fiber waterway temperature of the laser sealing and welding equipment to obtain a third temperature value and send the third temperature value to the processing unit 100.

[0023] For example, the set value of a certain monitoring point temperature in the processing unit 100 is 80℃. After the three temperature sensors collect the light source temperature, the focusing mirror temperature, and the optical fiber waterway temperature, respectively, they send the respective temperature values to the processing unit 100, which can solve the technical problem that the core components of the laser generator of the laser sealing and welding equipment are burned out, causing serious loss.

[0024] In the embodiment of the present application, the alarm unit 130 comprises: a plurality of alarm indicators 131 mounted on the circuit board, the plurality of alarm indicators 131 being communicatively connected to the GPIO7 port and / or the GPIO8 port and / or the GPIO9 port of the single-chip microcomputer; a buzzer 132 mounted on the circuit board, the buzzer 132 being communicatively connected to the GPIO10 port of the single-chip microcomputer; and an OLED display screen 133 mounted on the circuit board, the OLED display screen 133 being communicatively connected to the GPIO12 port and the GPIO13 port of the single-chip microcomputer; wherein the plurality of alarm indicators 131, the buzzer 132, and the OLED display screen 133 are configured to simultaneously output a first alarm prompt, a second alarm prompt, and a third alarm prompt, respectively, according to at least one of the first output signal, the second output signal, and the third output signal.

[0025] The first alarm prompt is a flashing prompt of the alarm indicators 131, the second alarm prompt is a high-decibel beeping sound of the buzzer 132, and the third alarm prompt is a display prompt of the OLED display screen. By checking the information provided by the OLED display screen, the worker can know which component has a high temperature value, and then notify the equipment manufacturer or the maintenance personnel to perform maintenance processing. The three kinds of alarm prompts can simultaneously prompt the worker, and the worker can take timely measures after receiving the prompt, thereby protecting the core components of the laser sealing and welding equipment and reducing economic losses.

[0026] In the embodiment of the present application, the isolation unit 200 is an optical coupling isolator. The optical coupling isolator has the functions of output and output isolation, and can prevent the single-chip microcomputer from being burned out.

[0027] In the embodiment of the present application, the laser sealing and welding equipment temperature monitoring system further comprises: a first button 111 mounted on the circuit board, the first button 111 being communicatively connected to the GPIO1 port of the single-chip microcomputer; a second button 112 mounted on the circuit board, the second button 112 being communicatively connected to the GPIO2 port of the single-chip microcomputer; and a third button 113 mounted on the circuit board, the third button 113 being communicatively connected to the GPIO3 port of the single-chip microcomputer; the first button 111 is configured to generate a reset signal to reset the single-chip microcomputer; the second button 112 is configured to generate a mute signal to eliminate the alarm prompt; and the third button 113 is configured to generate an emergency stop signal to send a second breaking signal to the relay 300 through the single-chip microcomputer and the optical coupling isolator, so that the relay 300 disconnects the emergency stop switch.

[0028] The first button 111 is a reset button, the second button 112 is a mute button, and the third button 113 is an emergency stop button. After the worker arrives at the scene, the worker can eliminate the alarm sound by pressing the “mute” button. If the worker finds that the temperature of the OLED display screen is too high, the worker can also manually press the “emergency stop” button to protectively shut down the equipment.

[0029] To sum up, the application adopts the multi-point temperature measurement mode, directly monitors each heating part of the laser sealing and welding equipment, the OLED screen displays the temperature value of each heating part in real time, once the temperature of a certain part exceeds the standard, the staff is reminded through sound and flash, and real-time man-machine interaction is carried out through the OLED screen, simple equipment operation of the staff is reminded, the whole process is automatically designed without manual operation, and manual emergency stop operation is provided, so that a good hardware foundation is provided for safe, reliable and stable operation of the laser sealing and welding equipment.

[0030] To achieve the above object, the embodiment of the application further provides a laser sealing and welding equipment comprising the laser sealing and welding equipment temperature monitoring system provided by any of the foregoing embodiments.

[0031] It should be noted that the laser sealing and welding equipment has the foregoing laser sealing and welding equipment temperature monitoring system, and thus has various corresponding effects of the laser sealing and welding equipment temperature monitoring system, which will not be described herein again.

[0032] Those skilled in the art can understand that the foregoing embodiments are specific embodiments for implementing the application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the application.

Claims

1. A temperature monitoring system for laser sealing equipment, characterized in that, It includes a processing unit (100) mounted on a circuit board, a monitoring unit (120), an alarm unit (130), and an isolation unit (200) respectively communicatively connected to the processing unit (100), and a relay (300) communicatively connected to the isolation unit (200); The monitoring unit (120) is used to collect the light source temperature of the laser sealing equipment to obtain a first temperature value, collect the focusing lens temperature of the laser sealing equipment to obtain a second temperature value, and collect the fiber optic water circuit temperature of the laser sealing equipment to obtain a third temperature value. The monitoring unit (120) is also used to send the first temperature value, the second temperature value and the third temperature value to the processing unit (100) respectively. The processing unit (100) is used to compare the first temperature value and the first preset value to obtain a first output signal, compare the second temperature value and the second preset value to obtain a second output signal, and compare the third temperature value and the third preset value to obtain a third output signal. The processing unit (100) is also used to send at least one of the first output signal, the second output signal and the third output signal to the alarm unit (130) and the isolation unit (200). The alarm unit (130) is used to output at least one alarm prompt based on at least one of the first output signal, the second output signal and the third output signal; The isolation unit (200) is used to send a first circuit breaker signal to the relay (300) according to at least one of the alarm prompts; The relay (300) is used to close the emergency stop switch of the laser sealing equipment according to the first circuit breaker signal, so as to stop the laser sealing equipment from working.

2. The temperature monitoring system for laser sealing equipment according to claim 1, characterized in that, The processing unit (100) is a microcontroller.

3. The temperature monitoring system for laser sealing equipment according to claim 2, characterized in that, The monitoring unit (120) includes: The first temperature sensor is communicatively connected to the first monitoring point (121) of the circuit board, and the first monitoring point (121) is communicatively connected to the GPIO4 port of the microcontroller. The second temperature sensor is communicatively connected to the second monitoring point (122) of the circuit board, and the second monitoring point (122) is communicatively connected to the GPIO5 port of the microcontroller; The third temperature sensor is communicatively connected to the third monitoring point (123) of the circuit board, and the third monitoring point (123) is communicatively connected to the GPIO6 port of the microcontroller. The first temperature sensor is used to collect the temperature of the light source of the laser sealing equipment, obtain the first temperature value, and send the first temperature value to the processing unit (100). The second temperature sensor is used to collect the temperature of the focusing lens of the laser sealing equipment, obtain the second temperature value, and send the second temperature value to the processing unit (100); The third temperature sensor is used to collect the temperature of the optical fiber water circuit of the laser sealing equipment, obtain the third temperature value, and send the third temperature value to the processing unit (100).

4. The temperature monitoring system for laser sealing equipment according to claim 2, characterized in that, The alarm notifications include a first alarm notification, a second alarm notification, and a third alarm notification; The alarm unit (130) includes: Multiple alarm indicator lights (131) are mounted on the circuit board, and the multiple alarm indicator lights (131) are communicatively connected to the GPIO7 port and / or GPIO8 port and / or GPIO9 port of the microcontroller; A buzzer (132) is mounted on the circuit board and is communicatively connected to the GPIO10 port of the microcontroller. An OLED display (133) is mounted on the circuit board, and the OLED display (133) is communicatively connected to the GPIO12 and GPIO13 ports of the microcontroller; The multiple alarm indicator lights (131), the buzzer (132), and the OLED display screen (133) are all used to output the first alarm prompt, the second alarm prompt, and the third alarm prompt according to at least one of the first output signal, the second output signal, and the third output signal.

5. The temperature monitoring system for laser sealing equipment according to claim 4, characterized in that, The isolation unit (200) is an optocoupler isolator.

6. The temperature monitoring system for laser sealing equipment according to claim 5, characterized in that, The temperature monitoring system for the laser sealing equipment also includes: The first button (111) is installed on the circuit board and is communicatively connected to the GPIO1 port of the microcontroller. The second button (112) is installed on the circuit board and is communicatively connected to the GPIO2 port of the microcontroller. The third button (113) is installed on the circuit board and is communicatively connected to the GPIO3 port of the microcontroller. The first button (111) is used to generate a reset signal when it is triggered, so as to reset the microcontroller; The second button (112) is used to generate a mute signal when triggered to eliminate the second alarm prompt; The third button (113) is used to generate an emergency stop signal when triggered, so as to send a second circuit breaker signal to the relay (300) through the microcontroller and the optocoupler, so that the relay (300) disconnects the emergency stop switch of the laser sealing equipment.

7. A laser sealing equipment, characterized in that, Including the temperature monitoring system for laser sealing equipment as described in any one of claims 1-6.

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