A baking machine device for use in a laser production process

By designing a heating device that includes temperature and flame detection during laser production, automatically cutting off the power supply, and utilizing laser shielding and heat dissipation modules, the problem of safety accidents during laser production has been solved, improving production safety and equipment reliability.

CN224303320UActive Publication Date: 2026-05-29WUHAN LEISHENG TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN LEISHENG TECH CO LTD
Filing Date
2025-08-25
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

During the laser production process, prolonged unattended operation during burn-in may lead to safety accidents, including risks such as circuit board burnout, open flames, fiber optic burning, and laser-related injuries.

Method used

A heat-burning device was designed, which includes a protective cover, a temperature detection module, a flame detection module, a laser shielding module, and a heat dissipation module. By monitoring the temperature and flame in real time, it automatically cuts off the power supply to prevent the flame from spreading, and uses the laser shielding module and cooling fan to reduce safety hazards.

Benefits of technology

It enables real-time monitoring and automatic power cut-off during laser production, preventing flame spread and laser injury, reducing the risk of equipment damage, and improving production safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of laser testing technology provides a kind of baking machine device for laser production process, the baking machine device includes protective cover, and there is laser electrical semi-finished product in the protective cover, and the top surface of the protective cover is inwards and has temperature detection module and flame detection module, the tail end in the protective cover is equipped with laser shielding module, and the back of laser shielding module is equipped with heat dissipation module, and the back of laser shielding module is equipped with a row of fins, and the front of laser shielding module forms a row of inclined sawtooth structure, the top surface of the sawtooth structure is horizontal plane, and the bottom is inclined plane, the baking machine device further includes power switch control module, and the laser output tail fiber of the laser electrical semi-finished product is aligned with laser shielding module.This device is monitored in real time by flame detection module and temperature detection module, and the flame and temperature anomaly when baking machine, once problem is found, power switch control module immediately cuts off power, and avoids accident expansion.
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Description

Technical Field

[0001] This utility model belongs to the field of laser testing technology, and in particular relates to a heat-burning device used in the laser production process. Background Technology

[0002] The laser manufacturing process is divided into electrical component production and optical component production. In order to improve its reliability during the electrical component production process, after assembly and testing, it is necessary to power on the circuit board and connect it to the fiber-coupled semiconductor laser to operate at full load for a period of time to verify the full-load stability and reliability of the circuit board, and at the same time verify the stability and reliability of the fiber-coupled semiconductor laser operation.

[0003] However, during full-load operation, as the temperature of the machine's protective cover rises, poor soldering of components or circuit boards can lead to circuit board burnout or even open flames. Furthermore, if the fiber optic pigtail of a fiber-coupled semiconductor laser is exposed to air and contaminated with dust, it can also cause the fiber to burn and produce an open flame. Additionally, fiber-coupled semiconductor lasers have high output power; if unobstructed, they can cause injury to people or damage to property, leading to production safety accidents. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a heat-up device for laser production process, which aims to solve the problem that existing heat-up devices used in laser production process may cause safety accidents when the heat-up is carried out for a long time without supervision.

[0005] The present invention adopts the following technical solution:

[0006] The baking device includes a protective cover containing a laser electrical semi-finished product. A temperature detection module and a flame detection module are located on the top surface of the protective cover facing inwards. A laser shielding module is installed at the rear end of the protective cover. A heat dissipation module is installed on the back of the laser shielding module, and a row of fins is provided on the back of the laser shielding module. A row of inclined serrated structures is formed on the front of the laser shielding module, with the top surface of the serrated structure being horizontal and the bottom surface being inclined. The baking device also includes a power switch control module. The laser output fiber of the laser electrical semi-finished product is aligned with the laser shielding module. The power cord of the laser electrical semi-finished product, as well as the temperature detection module and the flame detection module, are all electrically connected to the power switch control module.

[0007] Furthermore, the side plate of the protective cover has a heat dissipation vent facing the side of the fins, and the heat dissipation module includes a fixing plate located on the back of the laser shielding module and fixed to the tail end of the protective cover. The fixing plate has multiple cooling fans, which are oriented towards the fins.

[0008] Furthermore, the top surface of the protective cover has a square groove, and the square groove has an insertion hole, into which the bottom of the flame detection module is inserted.

[0009] Furthermore, threaded holes are provided at the four corners of the top surface of the protective cover, and the temperature detection module is fixed in the threaded holes by threaded locking.

[0010] Furthermore, the side plate of the protective cover has a pair of round holes on both the left and right sides corresponding to the laser shielding module. Locking screws are inserted into the round holes and locked to the laser shielding module.

[0011] Furthermore, a baffle is formed at the bottom of the laser blocking module, and the bottom edge of the laser electrical semi-finished product abuts against the baffle.

[0012] The beneficial effects of this utility model are:

[0013] 1. This device uses a flame detection module and a temperature detection module to monitor flame and temperature abnormalities in real time during the baking process. Once a problem is detected, the power switch control module immediately cuts off the power to prevent the accident from escalating.

[0014] 2. The protective cover can effectively prevent the flames from spreading outward and reduce the risk of fire.

[0015] 3. The serrated structure of the laser shielding module can guide the laser to the bottom shell, preventing direct laser beams from injuring people, while also avoiding false alarms caused by scattered light, thus improving system safety.

[0016] 4. The heat dissipation module dissipates heat in a timely manner through heat dissipation vents and cooling fans, and together with the heat dissipation grooves on the casing, it ensures stable system temperature and avoids equipment damage or safety hazards caused by high temperature. Attached Figure Description

[0017] Figure 1 This utility model provides an overall diagram of a baking device used in the laser production process.

[0018] Figure 2 This utility model provides an exploded view of a baking device used in the laser production process.

[0019] Figure 3 This utility model provides a schematic diagram of a laser electrical semi-finished product and a laser blocking module.

[0020] Figure 4 This is a schematic diagram of the heat dissipation module provided by this utility model. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0023] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0024] Combination Figure 1-4 As shown, the baking device includes a protective cover 1, inside which is a laser electrical semi-finished product 2. A temperature detection module 3 and a flame detection module 6 are located on the inward-facing top surface of the protective cover 1. A laser shielding module 4 is installed at the rear end inside the protective cover 1. A heat dissipation module 5 is installed on the back of the laser shielding module 4, and a row of fins 41 is provided on the back of the laser shielding module 4. A row of inclined serrated structures is formed on the front of the laser shielding module, with the top surface of the serrated structure being horizontal and the bottom surface being inclined. The baking device also includes a power switch control module 7. The laser output fiber optic cable 21 of the laser electrical semi-finished product 2 is aligned with the laser shielding module 4, and the laser output fiber optic cable can be fixed to the top surface of the laser electrical semi-finished product with tape. The power cord of the laser electrical semi-finished product 2, as well as the temperature detection module 3 and the flame detection module 6, are all electrically connected to the power switch control module 7.

[0025] This device prevents safety accidents caused by prolonged unattended operation during laser production. The device includes a protective cover, which houses a power switch control module, a flame detection module, a temperature detection module, a heat dissipation module, and a laser shielding module within it.

[0026] During operation, the laser output pigtail of the fiber-coupled semiconductor laser in the laser electrical semi-finished product is aligned with the laser blocking module to initiate full-load operation. When the device detects abnormal heating or flame, the power switch control module automatically cuts off the control power to the laser electrical semi-finished product, stopping its operation and reducing the risk of accidents. In this embodiment, the flame detection module uses a photodiode, and the temperature detection module uses a thermistor.

[0027] Specifically: The flame detection module detects in real time whether there is a specific spectrum of flame inside the protective cover. If a strong flame spectrum is detected, it immediately sends a signal to the power switch control module, which then cuts off the power supply to the laser's electrical semi-finished product, causing it to stop working.

[0028] The temperature detection module monitors the temperature inside the protective cover in real time. If an abnormal temperature rise is detected, i.e., the temperature exceeds the preset safety threshold, a signal is immediately sent to the power switch control module, which then cuts off the power supply and terminates the roasting process.

[0029] In this embodiment, the power switch control module is existing technology. Its function is to determine the magnitude of the collected data and output a switch command, which can be achieved using an existing microcontroller, model GD32F103RCT6. The power switch control module is not the focus of this embodiment.

[0030] In this structure, such as Figure 4 The protective cover 1 has a heat dissipation vent 15 on its side plate facing the side of the fin 41. The heat dissipation module includes a fixing plate 9 located on the back of the laser shielding module and fixed to the tail end of the protective cover. The fixing plate 9 has multiple cooling fans 11, which are oriented towards the fins. The fixing plate has a fixing opening 10, and the cooling fans are oriented towards the fixing opening.

[0031] The protective cover encloses the electrical semi-finished product of the laser, preventing the flame from spreading outwards during operation. In the illustration, the back of the laser shielding module has a serrated structure, with a horizontal top surface and a sloping bottom surface. In practice, this serrated structure guides the laser output from the fiber-coupled semiconductor laser to the bottom shell, preventing it from directly hitting the eyes and also preventing scattered light from causing false alarms in the PD (digital detector). Simultaneously, the cooling fan of the heat dissipation module promptly dissipates the heat generated by laser irradiation, ensuring that the overall module temperature does not rise rapidly. During this heat dissipation process, the heat dissipation vents increase airflow and improve heat dissipation efficiency.

[0032] like Figure 1 A square groove 12 is formed on the top surface of the protective cover 1, and an insertion hole (obscured in the figure) is formed in the square groove 12. The bottom of the flame detection module 6 is inserted into the insertion hole. This ensures that the window surface of the flame detection module is positioned above the laser electrical semi-finished product and is unobstructed, guaranteeing the sensitivity of flame detection.

[0033] In addition, four temperature detection modules are evenly distributed and installed on the top surface of the protective cover, which can improve the detection effect. Threaded holes are provided at the four corners of the top surface of the protective cover, and the temperature detection modules are fixed in the threaded holes by threaded locking. The installation process is relatively simple, as the temperature detection modules are installed in the threaded holes by threaded locking.

[0034] As a preferred structure, the side plate of the protective cover 1 has a pair of round holes 14 on both the left and right sides corresponding to the laser shielding module. Locking screws are inserted into the round holes 14 and locked to the laser shielding module 4, thus achieving a stable installation of the laser shielding module.

[0035] like Figure 3The bottom of the laser shielding module 4 has a baffle 16 formed facing forward, and the bottom edge of the laser electrical semi-finished product abuts against the baffle. In practice, the front panel of the protective cover can be opened, the laser electrical semi-finished product can be pushed directly in, the baffle will hold it in place, and then the front panel can be pressed back to complete the installation of the laser electrical semi-finished product.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A baking device for use in the laser production process, characterized in that: The baking device includes a protective cover containing a laser electrical semi-finished product. A temperature detection module and a flame detection module are located on the top surface of the protective cover facing inwards. A laser shielding module is installed at the rear end of the protective cover. A heat dissipation module is installed on the back of the laser shielding module, and a row of fins is provided on the back of the laser shielding module. A row of inclined serrated structures is formed on the front of the laser shielding module, with the top surface of the serrated structure being horizontal and the bottom surface being inclined. The baking device also includes a power switch control module. The laser output fiber of the laser electrical semi-finished product is aligned with the laser shielding module. The power cord of the laser electrical semi-finished product, as well as the temperature detection module and the flame detection module, are all electrically connected to the power switch control module.

2. The baking device for laser production process as described in claim 1, characterized in that: The side plate of the protective cover has a heat dissipation vent facing the side of the fins. The heat dissipation module includes a fixing plate located on the back of the laser shielding module and fixed to the tail end of the protective cover. The fixing plate has multiple cooling fans, which are oriented towards the fins.

3. The baking device for laser production process as described in claim 2, characterized in that: The top surface of the protective cover has a square groove, and a socket is formed in the square groove. The bottom of the flame detection module is inserted into the socket.

4. The baking device for laser production process as described in claim 3, characterized in that: The protective cover has threaded holes at the four corners of its top surface, and the temperature detection module is fixed in the threaded holes by threaded locking.

5. The baking device for laser production process as described in claim 4, characterized in that: The protective cover has a pair of round holes on the left and right sides corresponding to the laser shielding module. Locking screws are inserted into the round holes and locked to the laser shielding module.

6. The baking device for laser production process as described in claim 5, characterized in that: A baffle is formed at the bottom of the laser shielding module, and the bottom edge of the laser electrical semi-finished product abuts against the baffle.