Laser heating device with temperature feedback function

Abstract

This invention relates to the field of laser heating technology and discloses a laser heating device with temperature feedback function, comprising: a heated object support module, a distributed temperature sensing module, a zoned laser heating module, a feedback control module, and a power supply module; the power supply module is electrically connected to the distributed temperature sensing module, the zoned laser heating module, and the feedback control module to provide operating power; the distributed temperature sensing module is signal-connected to the feedback control module for collecting and transmitting temperature data of each area of ​​the heated object; the feedback control module is signal-connected to the zoned laser heating module for adjusting its output power according to the temperature data; the heated object support module is used to fix the heated object. This invention achieves precise temperature feedback and zoned power adjustment through the coordinated operation of each module, significantly improving heating uniformity and controllability, and effectively solving the problems of large temperature differences and poor processing quality in traditional laser heating devices.

Description

Technical Field

[0001] This invention relates to the field of laser heating technology, specifically to a laser heating device with temperature feedback function. Background Technology

[0002] Laser heating technology, with its advantages of high heating efficiency and fast response speed, is widely used in industrial fields such as PCB processing, metal heat treatment, and wafer manufacturing. The corresponding laser heating device has become an indispensable core equipment in related processes, and its heating effect directly affects the processing accuracy and quality of the product.

[0003] Existing laser heating devices, to ensure basic heating functions, often employ a single laser source combined with overall power adjustment, or only a few temperature sensing elements for auxiliary control. However, single power adjustment cannot adapt to the temperature differences in different areas of the heated object, and a few sensing elements can only capture local temperature information, resulting in a lack of comprehensiveness and specificity in control. Even if some devices attempt zoned heating, the lack of an effective temperature feedback and precise power linkage mechanism makes it difficult to balance the temperature in different areas, ultimately causing significant temperature differences in different areas of the heated object, leading to processing quality problems such as product deformation and uneven performance. Therefore, a laser heating device with temperature feedback function is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a laser heating device with temperature feedback function to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser heating device with temperature feedback function, comprising:

[0006] The heated object support module, the distributed temperature sensing module, the zoned laser heating module, the feedback control module, and the power supply module; The power supply module is electrically connected to the distributed temperature sensing module, the zoned laser heating module, and the feedback control module to provide working power. The distributed temperature sensing module is signal-connected to the feedback control module and is used to collect and transmit temperature data of each area of ​​the heated object. The feedback control module is signal-connected to the partitioned laser heating module and is used to adjust its output power according to temperature data. The heated object support module is used to fix the heated object, and the position of the heated object support module corresponds to and is adapted to the heating area of ​​the partitioned laser heating module and the monitoring area of ​​the distributed temperature sensing module. It can realize real-time monitoring of temperature in various areas of the heated object and targeted power control, effectively improving the uniformity and stability of the heating process, enhancing the controllability of the heating process, avoiding processing defects caused by uneven temperature distribution, and is suitable for precise heating scenarios of heated objects of various materials and shapes, thus broadening the application range of the device.

[0007] Preferably, the heated object carrying module is made of high temperature resistant insulating material, the carrying surface is provided with a positioning groove adapted to the shape of the heated object, the inner wall of the positioning groove is provided with an elastic buffer layer, and the bottom is provided with a through heat dissipation channel to ensure stable positioning of the heated object and reduce the impact of the module's own temperature rise on the temperature measurement. The heated object support module is made of high-temperature resistant insulating material. The positioning groove is adapted to the shape of the heated object. The elastic buffer layer avoids positioning damage. The through-type heat dissipation channel reduces the interference of module heating on temperature measurement. This ensures accurate and stable positioning of the heated object, improves the accuracy of temperature acquisition, and guarantees the reliability of the heating process.

[0008] Preferably, the distributed temperature sensing module includes several temperature sensors, with at least three temperature sensors. The temperature sensors are evenly distributed around and above the heated object at preset positions to form a fully enclosed monitoring layout. Each temperature sensor is equipped with an independent signal transmission unit, and the detection end of the temperature sensor faces the surface of the heated object and maintains a preset safe distance.

[0009] Preferably, the partitioned laser heating module includes several laser emitting units that correspond one-to-one with the temperature sensors. Each laser emitting unit corresponds to an independent heating area of ​​the object being heated, and the heating ranges of each laser emitting unit do not overlap or have only a very small overlap, thus avoiding heating interference.

[0010] Preferably, each of the laser emitting units is equipped with a power adjustment component, which is signal-connected to the feedback control module. The power adjustment component precisely adjusts the laser output power according to the instructions of the feedback control module, thereby achieving fine-tuning of the temperature of the corresponding heating area.

[0011] Preferably, the feedback control module includes a data receiving unit, a temperature comparison unit, and a power control unit, which are connected in sequence. The data receiving unit receives temperature data, the temperature comparison unit calculates the difference between the temperature and the preset standard temperature, and the power control unit sends an adjustment command based on the difference. The feedback control module achieves closed-loop control of temperature data reception, difference calculation, and adjustment command transmission through sequential signal connection of the data receiving unit, temperature comparison unit, and power control unit. The process is clear and the response is rapid, ensuring the accuracy and timeliness of power adjustment and guaranteeing the controllability of the heating process.

[0012] Preferably, the power supply module adopts a wide voltage input design and is equipped with a voltage stabilization unit and an overload protection unit. The voltage stabilization unit ensures stable output voltage, and the overload protection unit automatically cuts off the power supply when the load exceeds a preset threshold. The power supply module adopts a wide voltage input design, and the voltage stabilization unit ensures stable power supply to each module, avoiding voltage fluctuations from affecting the operation of the device. The overload protection unit automatically cuts off power when the load exceeds the limit, which not only improves the device's ability to adapt to different power supply environments, but also effectively protects each module from damage and extends the service life of the device.

[0013] Preferably, the temperature sensor of the distributed temperature sensing module is a contact or non-contact sensor. The appropriate type is selected according to the material, shape and heating temperature range of the object being heated, thereby improving the applicability of the device.

[0014] Preferably, the installation angle of the laser emitting unit is adjustable. The laser beam is precisely focused on the corresponding heating area through the angle adjustment mechanism, ensuring concentrated heating energy and further improving heating efficiency.

[0015] Preferably, it also includes a display module, which is signal-connected to the feedback control module and is used to display the temperature data of each area of ​​the heated object, the power parameters of the laser emitting unit, and the working status of the device in real time, so as to facilitate the operator's monitoring and control.

[0016] Compared with the prior art, the present invention provides a laser heating device with temperature feedback function, which has the following beneficial effects: This invention provides stable power to each module through a power supply module, and a distributed temperature sensing module collects temperature data from each area of ​​the heated object and transmits it to a feedback control module. The feedback control module adjusts the output power of the zoned laser heating modules based on the temperature data, and the heated object support module fixes the heated object. This achieves precise temperature feedback and power adjustment through coordinated linkage of each module, which has the advantages of strong heating uniformity and high controllability. It solves the problem of traditional laser heating devices lacking targeted temperature monitoring and zoned power adjustment, resulting in large temperature differences and poor processing quality in different areas of the heated object. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall system composition of the present invention; Figure 2 This is a diagram showing the internal structure of the feedback control module of the present invention; Figure 3 This is a flowchart illustrating the working logic of the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides a technical solution: a laser heating device with temperature feedback function. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3 ,include: The heated object support module, the distributed temperature sensing module, the zoned laser heating module, the feedback control module, and the power supply module; The power supply module is electrically connected to the distributed temperature sensing module, the zoned laser heating module, and the feedback control module to provide working power. The distributed temperature sensing module is signal-connected to the feedback control module to collect and transmit temperature data of each area of ​​the heated object. The feedback control module is signal-connected to the zoned laser heating module and is used to adjust its output power based on temperature data. The heated object support module is used to fix the heated object, and the position of the heated object support module corresponds to and is adapted to the heating area of ​​the partitioned laser heating module and the monitoring area of ​​the distributed temperature sensing module. By integrating the heated object support module, distributed temperature sensing module, zoned laser heating module, feedback control module, and power supply module, the connection and adaptation relationships of each module are clearly defined. The power supply module provides stable power, and the sensing and control modules work together to adjust. From the core architecture, the uniformity of heating and the stability of the device are guaranteed, adapting to various scenarios and laying the foundation for subsequent functional expansion.

[0020] The heated object support module is made of high-temperature resistant insulating material. The support surface has a positioning groove that matches the shape of the heated object. The inner wall of the positioning groove has an elastic buffer layer, and the bottom has a through heat dissipation channel to ensure stable positioning of the heated object and reduce the impact of the module's own temperature rise on the temperature measurement. The heated object support module is made of high-temperature resistant insulating material. The positioning groove is adapted to the shape of the heated object. The elastic buffer layer avoids positioning damage. The through-type heat dissipation channel reduces the interference of module heating on temperature measurement. This ensures accurate and stable positioning of the heated object, improves the accuracy of temperature acquisition, and guarantees the reliability of the heating process.

[0021] The distributed temperature sensing module includes several temperature sensors, with at least three temperature sensors. The temperature sensors are evenly distributed around and above the heated object at preset positions to form a fully enclosed monitoring layout. Each temperature sensor is equipped with an independent signal transmission unit. The detection end of the temperature sensor faces the surface of the heated object and maintains a preset safe distance. The distributed temperature sensing module uses at least three temperature sensors to form a fully enclosed monitoring layout, coupled with an independent signal transmission unit, to capture the temperature of each area of ​​the heated object from all directions. The preset safe distance design of the detection end takes into account both accuracy and safety, ensuring that temperature data acquisition is free of blind spots and transmission is free of interference, providing comprehensive and reliable data support for feedback and adjustment.

[0022] The partitioned laser heating module includes several laser emitting units that correspond one-to-one with the temperature sensors. Each laser emitting unit corresponds to an independent heating area of ​​the object being heated, and the heating ranges of each laser emitting unit do not overlap or have only a very small overlap, thus avoiding heating interference. In the zoned laser heating module, the laser emitting unit and the temperature sensor are one-to-one, and the heating range has no overlap or very little overlap, avoiding heating interference and realizing independent and precise heating of each area. This effectively solves the regional interference problem of traditional heating, makes the temperature control of each heating area more targeted, and improves the overall heating uniformity.

[0023] Each laser emitting unit is equipped with a power adjustment component, which is connected to the feedback control module. The power adjustment component is precisely adjusted according to the instructions of the feedback control module to achieve fine-tuning of the temperature of the corresponding heating area. Each laser emitting unit is equipped with a power adjustment component and is connected to the feedback control module. It can precisely fine-tune the output power according to the command, quickly respond to temperature changes, and correct regional temperature deviations in a timely manner to ensure that the temperature of each area of ​​the heated object is stable within the preset range, thus meeting the high-precision heating requirements.

[0024] The feedback control module includes a data receiving unit, a temperature comparison unit, and a power control unit. The three are connected in sequence. The data receiving unit receives temperature data, the temperature comparison unit calculates the difference between the temperature and the preset standard temperature, and the power control unit sends adjustment commands based on the difference. The feedback control module achieves closed-loop control of temperature data reception, difference calculation, and adjustment command transmission through sequential signal connection of the data receiving unit, temperature comparison unit, and power control unit. The process is clear and the response is rapid, ensuring the accuracy and timeliness of power adjustment and guaranteeing the controllability of the heating process.

[0025] The power supply module adopts a wide voltage input design and is equipped with a voltage stabilization unit and an overload protection unit. The voltage stabilization unit ensures stable output voltage, and the overload protection unit automatically cuts off the power supply when the load exceeds a preset threshold. The power supply module adopts a wide voltage input design, and the voltage stabilization unit ensures stable power supply to each module, avoiding voltage fluctuations from affecting the operation of the device. The overload protection unit automatically cuts off power when the load exceeds the limit, which not only improves the device's ability to adapt to different power supply environments, but also effectively protects each module from damage and extends the service life of the device.

[0026] The temperature sensor of the distributed temperature sensing module can be a contact or non-contact sensor. The appropriate type can be selected based on the material, shape and heating temperature range of the object being heated, thereby improving the applicability of the device. The distributed temperature sensing module allows the selection of contact or non-contact temperature sensors based on the material, shape, and heating temperature range of the object being heated. This breaks the limitations of a single sensor and enables the device to adapt to more types of objects being heated, significantly improving the device's versatility and application scope.

[0027] The installation angle of the laser emitting unit is adjustable. The angle adjustment mechanism enables the laser beam to be precisely focused on the corresponding heating area, ensuring concentrated heating energy and further improving heating efficiency. The installation angle of the laser emitting unit can be adjusted by the angle adjustment mechanism, which can enable the laser beam to be precisely focused on the corresponding heating area, reduce energy loss, improve heating efficiency, and meet the heating needs of objects of different sizes and shapes, further enhancing the adaptability and heating accuracy of the device.

[0028] It also includes a display module, which is connected to the feedback control module to display the temperature data of each area of ​​the heated object, the power parameters of the laser emitting unit, and the working status of the device in real time, so as to facilitate the operator's monitoring and control. The display module is connected to the feedback control module, which can display the temperature data of each area of ​​the heated object, the power parameters of the laser emitting unit, and the working status of the device in real time. This allows operators to intuitively grasp the operation of the device, facilitate timely monitoring and control, reduce the difficulty of operation, and improve the ease of use.

[0029] This solution: The power supply module supplies power to the distributed temperature sensing module, the zoned laser heating module, and the feedback control module. The distributed temperature sensing module collects temperature data from each area of ​​the heated object and transmits it to the feedback control module. After receiving the data and comparing the temperatures, the feedback control module sends a power adjustment command to the zoned laser heating module. The laser emitting unit adjusts its output power through the power adjustment component. The heated object carrier module fixes the heated object, and the display module provides real-time feedback on relevant parameters. When the heated object is placed in the heated object carrier module and the device is started, the display module monitors the temperature and power parameters of each area. Without any additional operation, the device can automatically complete precise heating control.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the 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 to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser heating device with temperature feedback function, characterized in that, include: The heated object support module, the distributed temperature sensing module, the zoned laser heating module, the feedback control module, and the power supply module; The power supply module is electrically connected to the distributed temperature sensing module, the zoned laser heating module, and the feedback control module to provide working power. The distributed temperature sensing module is signal-connected to the feedback control module and is used to collect and transmit temperature data of each area of ​​the heated object. The feedback control module is signal-connected to the partitioned laser heating module and is used to adjust its output power according to temperature data. The heated object support module is used to fix the heated object.

2. The laser heating device with temperature feedback function according to claim 1, characterized in that: The heated object support module is made of high-temperature resistant insulating material. The support surface is provided with a positioning groove that matches the shape of the heated object. The inner wall of the positioning groove is provided with an elastic buffer layer, and the bottom is provided with a through heat dissipation channel.

3. A laser heating device with temperature feedback function according to claim 1, characterized in that: The distributed temperature sensing module includes several temperature sensors, with at least three temperature sensors. The temperature sensors are evenly distributed around and above the heated object at preset positions. Each temperature sensor is equipped with an independent signal transmission unit. The detection end of the temperature sensor faces the surface of the heated object and maintains a preset safe distance.

4. A laser heating device with temperature feedback function according to claim 1, characterized in that: The partitioned laser heating module includes several laser emitting units corresponding to the temperature sensor, and each laser emitting unit corresponds to an independent heating area of ​​the object being heated.

5. A laser heating device with temperature feedback function according to claim 4, characterized in that: Each of the laser emitting units is equipped with a power adjustment component, which is signal-connected to the feedback control module and precisely adjusts the laser output power according to the instructions of the feedback control module.

6. A laser heating device with temperature feedback function according to claim 1, characterized in that: The feedback control module includes a data receiving unit, a temperature comparison unit, and a power control unit, which are connected in sequence. The data receiving unit receives temperature data, the temperature comparison unit calculates the difference between the temperature and the preset standard temperature, and the power control unit sends an adjustment command based on the difference.

7. A laser heating device with temperature feedback function according to claim 1, characterized in that: The power supply module adopts a wide voltage input design and is equipped with a voltage stabilization unit and an overload protection unit. The voltage stabilization unit ensures stable output voltage, and the overload protection unit automatically cuts off the power supply when the load exceeds a preset threshold.

8. A laser heating device with temperature feedback function according to claim 1, characterized in that: The temperature sensor of the distributed temperature sensing module can be a contact or non-contact sensor, and the appropriate type is selected according to the material, shape and heating temperature range of the object being heated.

9. A laser heating device with temperature feedback function according to claim 4, characterized in that: The installation angle of the laser emitting unit is adjustable, and the laser beam can be precisely focused on the corresponding heating area through the angle adjustment mechanism.

10. A laser heating device with temperature feedback function according to claim 1, characterized in that: It also includes a display module, which is signal-connected to the feedback control module and is used to display the temperature data of each area of ​​the heated object, the power parameters of the laser emitting unit, and the working status of the device in real time.

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