A portable air-cooled fiber laser device

Abstract

This invention discloses a portable air-cooled fiber laser device, comprising a housing that integrates a laser pump source, fiber output assembly, power supply assembly, cooling engine, and control circuitry. The power supply assembly features a removable structure and a replaceable internal battery, enabling power supply without an external power source. The cooling engine employs a sandwich-style structure, consisting of heat dissipation fins and embedded heat pipes, forming a lateral ventilation and heat dissipation channel via a cooling fan for efficient thermal management. It supports wired or wireless connection to mobile devices or computers for remote control of the laser's operating status. This device is compact, highly efficient in heat dissipation, and portable, possessing excellent heat dissipation performance, independent power supply capability, and environmental adaptability. It is suitable for various applications such as field operations and emergency use, demonstrating significant practicality and potential for widespread adoption.

Description

Technical Field

[0001] This invention relates to the field of laser technology, and in particular to a portable air-cooled fiber laser device. Background Technology

[0002] Fiber lasers, with their advantages of high brightness, high efficiency, and low maintenance, have been widely used in metal cutting, welding, marking, and micro-machining. In various application scenarios such as industrial manufacturing, on-site construction, medical repair, and emergency response, higher demands are placed on the portability, integration, and heat dissipation performance of fiber lasers. Especially when used in the field, in power-limited, or power-free environments, the dependence of traditional laser equipment on external power sources severely restricts its application range and flexibility.

[0003] Existing fiber lasers generally employ a separate power supply structure, requiring an external high-power power adapter or power supply box. This leads to problems such as complex wiring, unstable power supply, and inability to quickly restore operation after a power outage during outdoor operation. Furthermore, while some devices are equipped with portable batteries, their structures often lack integrated design, resulting in inconvenient battery replacement, unstable contact, bulky size, and risks of loosening due to vibration, making it difficult to meet the demands for high reliability and high-intensity use.

[0004] In terms of heat dissipation, thermal management is particularly critical for high-power fiber lasers. Some portable products use simple fans or single-sided heat sinks for cooling, which cannot fully dissipate the heat generated by the pump source and laser emission structure. Prolonged operation may lead to power degradation, system overheating, or even damage to optical components. How to achieve an efficient, directional, and closed-loop heat dissipation path within a limited structural space remains one of the key technological bottlenecks in the field of portable lasers.

[0005] Furthermore, to meet the market trend of miniaturization and integration, users urgently need a laser solution that compactly integrates the power supply system, laser source, heat dissipation structure, and fiber optic output channel into a single device. This solution should not only possess stable and reliable laser output capabilities but also support comprehensive performance such as rapid battery replacement, rapid heat dissipation, and convenient structural maintenance to truly meet the actual needs of high-mobility and high-intensity operating scenarios. Summary of the Invention

[0006] The technical problem to be solved by this invention is: addressing the issues that existing fiber lasers generally rely on external power supplies, have dispersed structures, are large in size, and have insufficient heat dissipation efficiency in portable applications. This invention provides a fiber laser device that highly integrates a detachable mobile power supply, a laser emission component, and a compact air-cooling structure into the same housing. This achieves stable power supply, efficient heat dissipation, and overall structural integration and miniaturization without an external power supply, thereby improving the applicability and reliability of the device in mobile operations and complex environments.

[0007] To solve the above-mentioned technical problems, the present invention provides a portable air-cooled fiber laser device, comprising:

[0008] The enclosure is composed of a top cover, a bottom base plate, and multiple side panels.

[0009] The laser emitting assembly includes a laser pump source mounted on the top cover plate and an optical fiber and its optical elements disposed below the bottom substrate. The two are connected by the optical fiber to output a laser beam through the laser output end on the housing.

[0010] The power supply assembly includes a drawer installed below the bottom substrate and a removable battery disposed therein. The battery supplies power to the laser pump source by connecting to a power control board inside the housing.

[0011] The heat dissipation engine is located between the laser pump source (1) and the bottom substrate (4) on which the optical fiber and its optical components (8) are installed, and forms a sandwich structure, including multiple heat dissipation fins and heat pipes embedded therein. The heat dissipation fins contact the top cover plate and the bottom substrate to receive the heat generated by the laser and conduct it to the surface of the heat dissipation fins and the heat pipes for uniform diffusion.

[0012] The air-cooling assembly includes multiple cooling fans mounted on the side sealing plate. These fans form transverse ventilation channels corresponding to the cooling engine, driving external air through the heat dissipation area along the gaps in the heat dissipation fins to achieve directional air cooling and heat dissipation.

[0013] The laser emitting component, power supply component, heat dissipation engine and control circuit are all integrated into the housing, so that the optical path, power supply path and heat dissipation path are arranged in a coordinated manner in a limited space, creating a compact, thermally efficient fiber laser system that does not require an external power supply and is suitable for field mobile operations and portable emergency use. The resulting sandwich structure layout further improves the system's integration and space utilization.

[0014] Optionally, the bottom of the battery is provided with at least one limiting protrusion, and the inside of the drawer is provided with a limiting groove. After the limiting protrusion is inserted into the limiting groove, the battery is axially and radially limited and positioned inside the drawer to prevent loosening of contact due to vibration, movement or replacement process.

[0015] Optionally, the drawer is provided with metal contacts for contacting the corresponding conductive connectors of the power control board. The metal contacts form a dynamic contact engagement with the power control board during the drawer closing process, ensuring that the power output can directly act on the laser pump source and maintain reliability after the battery is inserted into place.

[0016] Optionally, the drawer is slidably connected to the bottom substrate via a tenon-and-mortise slide rail located on its side or bottom. The slide rail is a limiting and guiding structure. A limiting block and a limiting bead are provided at the front end of the drawer. After the drawer is fully pushed in, the limiting bead engages with a preset slot to achieve structural self-locking, thereby ensuring that the drawer does not slip out in the reverse direction after the electrical connection is closed.

[0017] Optionally, the heat pipes are embedded in a fin group composed of multiple heat dissipation fins in an orderly and staggered manner. Each heat dissipation fin has through holes, and multiple through holes arranged continuously along the length direction form a mounting groove. The heat pipes are embedded in the mounting groove, so that the heat pipes and the fin group form an integral embedded structure.

[0018] Optionally, the cooling fan is installed at a fan mounting hole on at least one side panel. The cooling fan is aligned with the heat dissipation fins to form a horizontal direct-blowing cold airflow channel. The airflow is guided through the heat dissipation components by the internal airflow design of the enclosure to maximize directional heat dissipation efficiency.

[0019] Optionally, the laser pump source includes multiple semiconductor lasers arranged in parallel on the top cover plate. The multiple lasers are combined through a fiber optic structure and connected to the optical fiber to output a high-intensity laser beam with stable power.

[0020] Optionally, the optical fiber and its optical components are fixedly installed below the bottom substrate. The beam output from the pump source is received by a precision focusing assembly and collimated before being output. A beam stabilization structure is provided in the optical fiber connection path to ensure the coaxiality and directional stability of the high-power laser output.

[0021] Optionally, at least one of the multiple side sealing plates is a detachable structure, and the remaining side sealing plates are fixedly connected to the top cover plate and the bottom substrate. The detachable sealing plates are installed by screw connection or sliding lock, which facilitates the replacement of internal components and maintenance without damaging the overall structure.

[0022] Optionally, the device supports establishing a connection with an external control terminal via wired or wireless communication. The control terminal includes a mobile device or a computer device, used for real-time remote control and parameter configuration of the laser's on / off status, power output, operating mode, and power supply status.

[0023] The present invention has the following beneficial effects:

[0024] The device of the present invention adopts a drawer-type replaceable battery structure, with the power module embedded in the bottom of the device. The battery can be quickly replaced and stably powered by sliding rail limit and contact power supply, which significantly improves the continuous operation capability of the device in the absence of external power supply environment, and enhances mobility and practicality.

[0025] The device of the present invention constructs a multi-stage heat exchange path of heat pipe + heat dissipation fins + horizontal cooling fan within a limited volume, forming a stable airflow circulation system, realizing centralized cooling of the laser pump source and power supply area, and ensuring the stability of laser output power and system thermal safety.

[0026] The device of the present invention maximizes functional density by integrating a laser module, an optical system, a power supply unit and a heat sink in a single enclosure. It significantly improves system integrity and vibration resistance without increasing volume, and facilitates transportation, deployment and on-site installation.

[0027] The enclosed housing of the device of the present invention, combined with a removable sealing plate, has good sealing performance and convenient maintenance, and is suitable for various high-intensity and high-frequency operation scenarios such as field construction, emergency repair, and emergency marking.

[0028] The laser pump source of the device of the present invention is output through a bundled optical fiber and collimated by a stable optical structure to output a laser beam. It has good coaxiality and direction keeping capability, which helps to improve processing accuracy and system reliability. Attached Figure Description

[0029] Figure 1 This is a perspective view of the fiber laser device in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment of the present invention;

[0031] Figure 3 This is a front view of the fiber laser device in an embodiment of the present invention;

[0032] Figure 4 This is a side view of the fiber laser device in an embodiment of the present invention;

[0033] Figure 5 This is a top view of the fiber laser device in an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the installation structure of the drawer and battery in an embodiment of the present invention;

[0035] Figure 7 This is an exploded view of the fiber laser device in an embodiment of the present invention;

[0036] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0037] Figure 9 This is a schematic diagram showing the connection relationship between the drawer and the bottom substrate in an embodiment of the present invention;

[0038] Figure 10 for Figure 9 Enlarged view at point B in the middle;

[0039] Figure 11 This is a perspective view of the cooling engine in an embodiment of the present invention;

[0040] Figure 12 This is a side view of the cooling engine in an embodiment of the present invention;

[0041] Figure 13 This is a top view of the cooling engine in an embodiment of the present invention.

[0042] In the attached diagram: 1. Laser pump source; 2. Top cover plate; 3. Cooling fan; 4. Bottom substrate; 5. Drawer; 6. Battery; 7. Cabinet; 8. Fiber optic cable and its optical components; 9. Laser output end; 10. Fiber optic cable; 20. Heat sink fins; 30. Heat pipe; 31. Fan mounting hole; 41. Through hole; 51. Tenon and mortise slide rail; 52. Metal contact; 53. Limiting bead; 54. Limiting block; 55. Limiting groove; 61. Limiting protrusion; 71. Side sealing plate; 72. Power control board. Detailed Implementation

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Please see Figure 1 and Figure 2 As shown, a portable air-cooled fiber laser device according to an embodiment is illustrated, comprising:

[0049] The enclosure 7 is formed by a top cover plate 2, a bottom base plate 4 and multiple side sealing plates 71;

[0050] The laser emitting assembly includes a laser pump source 1 mounted on the top cover plate 2 and an optical fiber and its optical components 8 disposed below the bottom substrate 4. The two are connected by an optical fiber 10 to output a laser beam through a laser output end 9 on the housing 7.

[0051] The power supply component includes a drawer 5 installed below the bottom substrate 4 and a removable battery 6 disposed therein. The battery 6 supplies power to the laser pump source 1 by connecting to the power control board 72 inside the housing 7.

[0052] The heat dissipation engine is located between the laser pump source 1 and the bottom substrate 4 on which the optical fiber and its optical components 8 are installed, forming a sandwich structure. It includes multiple heat dissipation fins 20 and heat pipes 30 embedded therein. The heat dissipation fins 20 contact the top cover plate 2 and the bottom substrate 4 to receive the heat generated by the laser and conduct it to the surface of the heat dissipation fins 20 and heat pipes 30 for uniform diffusion.

[0053] The air-cooling assembly includes multiple cooling fans 3 mounted on the side panel 71. The cooling fans 3 form a transverse ventilation channel corresponding to the cooling engine, driving external air through the gaps in the cooling fins 20 to achieve directional airflow for heat dissipation.

[0054] The laser emitting component, power supply component, heat dissipation engine and control circuit are all integrated into the housing 7, so that the optical path, power supply path and heat dissipation path are arranged in a coordinated manner in the confined space, creating a compact, thermally efficient fiber laser system that does not require an external power supply and is suitable for field mobile operations and portable emergency use. The resulting sandwich structure layout further improves the system's integration and space utilization.

[0055] In this embodiment, the bottom of the battery is provided with at least one limiting protrusion, and the inside of the drawer is provided with a limiting groove. After the limiting protrusion is inserted into the limiting groove, the battery is axially and radially limited and positioned inside the drawer to prevent loosening of contact due to vibration, movement or replacement process.

[0056] In this embodiment, the drawer is provided with metal contacts for contacting the corresponding conductive connectors of the power control board. The metal contacts form a dynamic contact with the power control board during the drawer closing process, ensuring that the power output can directly act on the laser pump source and maintain reliability after the battery is inserted into place.

[0057] In this embodiment, the drawer is slidably connected to the bottom substrate by a tenon-and-mortise slide rail set on its side or bottom. The slide rail is a limiting and guiding structure. The front end of the drawer is provided with a limiting block and a limiting bead. After the drawer is fully pushed in, the limiting bead is locked into a preset slot to achieve structural self-locking, thereby ensuring that the drawer does not slip out in the opposite direction after the electrical connection is closed.

[0058] In this embodiment, heat pipes 30 are embedded in a fin group composed of multiple heat dissipation fins 20 in an orderly and staggered manner. Each heat dissipation fin 20 is provided with through holes (not shown, but not obscuring the meaning). Multiple through holes arranged continuously along the length direction form a mounting groove (not shown, but not obscuring the meaning). The heat pipes 30 are embedded in the mounting groove, so that the heat pipes 30 and the fin group form an integral embedded structure.

[0059] In this embodiment, the cooling fan is installed at the fan mounting hole on at least one side panel. The cooling fan is aligned with the heat dissipation fins to form a horizontal direct-blowing cold airflow channel. The airflow is guided through the heat dissipation components by the internal airflow design of the housing to maximize the directional heat dissipation efficiency.

[0060] In this embodiment, the laser pump source includes multiple semiconductor lasers arranged in parallel on the top cover plate. The multiple lasers are combined through a fiber optic combustor and then connected to an optical fiber to output a high-intensity laser beam with stable power.

[0061] In this embodiment, the optical fiber and its optical components are fixedly installed below the bottom substrate. The beam output from the pump source is received by a precision focusing assembly and collimated before being output. A beam stabilization structure is provided in the optical fiber connection path to ensure the coaxiality and directional stability of the high-power laser output.

[0062] In this embodiment, at least one of the multiple side sealing plates is a detachable structure, and the remaining side sealing plates are fixedly connected to the top cover plate and the bottom substrate. The detachable sealing plates are installed by screw connection or sliding lock, which is used to facilitate the replacement of internal components and maintenance without damaging the overall structure.

[0063] In this embodiment, the device supports establishing a connection with an external control terminal via wired or wireless communication. The control terminal includes a mobile device or a computer device, which is used to remotely control and configure the laser's on / off status, power output, operating mode, and power status in real time.

[0064] The fiber laser device of this embodiment will be described in detail below.

[0065] The detailed structure of the fiber laser device in this embodiment is as follows:

[0066] like Figures 1 to 7 As shown, this embodiment provides a portable air-cooled fiber laser device, which features high integration, portability and ease of maintenance, and suitability for laser output in environments without an external power supply. This invention integrates the laser module, integrated power supply system, compact heat dissipation structure, and control circuitry into a single enclosure to achieve efficient light emission and thermal management within a limited space.

[0067] like Figure 1 and Figure 2 As shown, this portable air-cooled fiber laser device includes: a housing 7, a laser emission system, a portable power supply assembly, a power control board 72, and a heat dissipation engine.

[0068] The enclosure 7 is formed by a top cover plate 2, a bottom base plate 4, and multiple side sealing plates 71, creating an internal installation space. The top cover plate 2 and the bottom base plate 4 are typically made of high-strength metal materials, such as aluminum alloy, magnesium alloy, or heat-treated steel, offering advantages including good mechanical strength and thermal conductivity, which facilitates the integration of the heat dissipation system. The side sealing plates 71 can be made of aluminum alloy or injection molded parts and are connected to the top and bottom plates by screws or clips. Multiple side sealing plates 71 are evenly distributed around the perimeter of the enclosure to improve its overall rigidity.

[0069] In this embodiment, the distance between the top cover plate 2 and the bottom substrate 4 is set according to the internal module size, so that the internal space can accommodate the laser pump source 1, the optical fiber and its optical components 8, the power control board 72, the power supply battery 6 and the heat dissipation engine, and also reserve enough space for internal ventilation channels.

[0070] like Figure 3 , Figure 4 and Figure 5 As shown, the laser emission system mainly includes a laser pump source 1, an optical fiber 10, and optical fibers and their optical components 8 at the ends of the optical fibers.

[0071] The laser pump source 1 is mounted on the top cover plate 2. This pump source can be a high-power pumping device composed of multiple semiconductor laser arrays. Each semiconductor laser is connected to the top cover plate 2 via a fixed bracket, and the output pump light is coupled to one end of the optical fiber 10 via an optical coupler. The laser pump source 1 can use a narrow-spectrum, high-brightness laser diode to improve coupling efficiency and pumping efficiency.

[0072] One end of the optical fiber 10 is connected to the coupling output end of the laser pump source 1, and the other end is connected to the optical fiber and its optical components 8. The optical fiber and its optical components 8 include collimating lenses, focusing lenses, etc., used to achieve collimation or focusing of the beam output according to the application requirements. The optical fiber and its optical components 8 can be fixed below the bottom substrate 4 by adjustable components, which facilitates fine-tuning of the optical path during manufacturing or maintenance, thereby achieving the required beam quality and directional stability.

[0073] In another embodiment, the laser pump source 1 can also be a fiber-coupled pump module, which has a built-in coupling lens group that can effectively couple the pump light of multiple laser diodes into the main fiber, thereby simplifying the optical path and improving integration.

[0074] like Figure 6 and Figure 8 As shown, the power supply assembly includes a pull-out drawer 5 and a removable battery 6 housed inside the drawer. The bottom of the base plate 4 has an opening that matches the drawer 5, allowing the drawer 5 to be pushed in or pulled out along a sliding rail structure. The front end of the drawer 5 protrudes from the cabinet surface for easy manual pulling by the user; its interior can accommodate a set of removable batteries 6, such as a lithium-ion battery module.

[0075] like Figure 9 and Figure 10 As shown, drawer 5 and bottom plate 4 are slidably connected via tenon and mortise slide rail 51. The tenon and mortise slide rail 51 can be made of metal or high-strength composite materials, offering advantages such as robust structure, low wear, and good guiding properties. During sliding, the limiting bead 53 at one end of drawer 5 cooperates with the limiting block 54 to achieve final positioning. The limiting structure ensures a clear locking feel and smooth mechanical feedback when battery 6 is installed in the predetermined position.

[0076] The drawer 5 has a metal contact 52 inside. When the drawer is fully pushed in, the metal contact 52 makes contact with the corresponding electrical connection terminal on the power control board 72, thus realizing the electrical connection between the battery 6 and the power control board. In order to improve the reliability of the contact, the metal contact 52 should preferably be made of a flexible metal material, and should be combined with anti-oxidation plating and other processes to resist changes in contact resistance over long-term use.

[0077] The above structure supports quick battery replacement 6. When the battery is depleted, the user only needs to pull out the drawer, replace the battery, and push it back into place to achieve quick on-site replacement.

[0078] like Figure 7 As shown, the power control board 72 is installed inside the housing 7 near the bottom substrate 4, and is electrically connected to the battery 6 and the laser pump source 1 respectively. The power control board 72 is used to receive electrical energy from the battery 6 and to regulate and protect the voltage and current, thereby providing a stable power supply to the laser pump source 1.

[0079] The power control board 72 typically includes components such as a power management unit, protection circuitry, and drive circuitry. The power management unit regulates and monitors the battery output voltage, the protection circuitry prevents overcurrent, overvoltage, and overheating, and the drive circuitry provides control signals to the laser pump source 1 and the cooling fan 3 according to a control algorithm. In another embodiment, the power control board 72 may also integrate power supply status indicators, such as LED power indicators or an LCD power display module, to allow the user to quickly understand the current battery status.

[0080] like Figure 11 , Figure 12 and Figure 13 As shown, the cooling engine includes a heat pipe 30, heat sink fins 20, and a cooling fan 3. The design of the cooling structure should meet the requirements of high heat flux density, low resistance heat flow, and good airflow management.

[0081] The heat dissipation fins 20 are preferably 50 pieces, arranged at equal intervals. Each heat dissipation fin 20 has a through hole. The through holes on multiple consecutive heat dissipation fins 20 are continuous and form an installation groove for the heat pipe 30. The heat pipe 30 is embedded in the installation groove of the heat dissipation fin 20. The heat pipe 30 is preferably arranged in two rows and eight columns, that is, there are 16 heat pipes in each group. Three groups of heat pipes 30 are embedded in all the heat dissipation fins 20, that is, 48 ​​heat pipes. All heat pipes are arranged in an orderly and staggered manner (in other embodiments, even if the heat pipes are arranged randomly, it is acceptable, as long as there are enough to achieve or improve heat dissipation). It appears that the heat dissipation fins 20 and the heat pipes 30 are integrally formed structures.

[0082] The heat pipe 30 is typically made of a metal with high thermal conductivity, such as copper or nickel-plated copper, with its two ends in thermal contact with the top cover plate 2 and the bottom substrate 4, respectively. The heat pipe 30 is embedded in the heat sink fins 20 to rapidly conduct the heat generated by the laser pump source 1, the optical fiber, and its optical components 8 during operation to the area where the heat sink fins 20 are located.

[0083] The heat dissipation fins 20 are typically made of easily formable metals such as aluminum alloys and magnesium alloys, which also have good thermal conductivity. The heat dissipation fins 20 increase the contact area between the air and the heat dissipation surface through a multi-plate arrangement, thereby improving heat exchange efficiency.

[0084] The cooling fan 3 is located at the fan mounting hole 31 on at least one side plate 71, forming a horizontal direct airflow path aligned with the heat dissipation fins 20. When the laser is working, the cooling fan 3 starts up and forms a stable airflow from the internal space to the outside, allowing heat to be quickly carried away by the airflow and preventing heat from accumulating inside.

[0085] In a further implementation, a dual-fan or a combination of axial and vortex fans can be used to enhance air cooling capacity. Furthermore, the speed of the cooling fan 3 can be automatically adjusted by the power control board 72 based on real-time temperature feedback signals, thereby reducing noise and power consumption while ensuring cooling capacity.

[0086] The optical fiber and its optical components 8 are mounted below the bottom substrate 4 and fixed by a mounting base or clamping mechanism. This positioning structure ensures that the axial and angular deviations between the fiber end face and the optical components are within a controllable range, thus ensuring stable laser output direction and quality.

[0087] In another alternative implementation, the optical fiber and its optical element 8 can employ a spring-clamping mechanism or a fine-tuning screw structure, making optical path adjustment more convenient and precise. This structure is particularly suitable for applications requiring fine on-site adjustments to the optical path.

[0088] The device can also be equipped with handles, protective covers, support feet, and other structures to enhance portability and stability. For example, a foldable handle can be installed on the top or side of the housing 7 to make it more convenient for users to carry the laser; shock-absorbing rubber support feet can be installed at the bottom to reduce the impact of ground vibrations on the internal structure.

[0089] The method of using the fiber laser device in this embodiment is as follows:

[0090] The following describes the usage method of this embodiment in conjunction with the device structure, so as to achieve efficient and stable fiber laser output.

[0091] like Figure 6As shown, the user should correctly install the power supply battery 6 into the drawer 5 before use. Before inserting the battery 6 into the drawer 5, ensure that the battery is within the normal power range and check that the metal contacts 52 are clean and free of oxidation. Then, the user pushes the drawer 5 into the bottom of the base plate 4 along the slide rail. With the cooperation of the limit bead 53 and the limit block 54, the drawer is locked in place, and at the same time, the metal contacts 52 establish a good electrical connection with the corresponding terminals on the power control board 72.

[0092] After the battery is installed, as in another variation of the embodiment, the power control board 72 can display information such as battery voltage level and remaining power via LED battery status indicator lights to remind the user to confirm whether the starting conditions are met. If the battery power is too low, the user can be prompted to replace it with a fully charged battery.

[0093] Once battery 6 is connected to power control board 72, the user operates the control switch to start the laser device. During startup, power control board 72 converts battery power into a stable power supply, which supplies the required operating current to laser pump source 1 through the drive circuit. Simultaneously, power control board 72 sends a start signal to activate cooling fan 3.

[0094] After the cooling fan 3 starts, it begins to generate airflow, which is guided through the area of ​​the heat dissipation fins 20 to quickly expel the heat of the laser from the outside of the enclosure structure in order to control the temperature rise inside the equipment.

[0095] As in another optional structure of the embodiment: the power control board 72 can dynamically adjust the speed of the cooling fan 3 according to the temperature signal of the heat pipe 30 or the top plate 2 obtained by the temperature sensor, so as to achieve optimal heat dissipation path control under different ambient temperatures or different laser power output states.

[0096] Once the laser pump source 1 reaches a stable state, the pump light is transmitted through the optical fiber 10 to the optical fiber and its optical components 8 to form a laser output. Users can adjust the beam divergence angle and focal point by setting the collimating or focusing lens assembly to meet different processing or inspection tasks.

[0097] In continuous or high-power output scenarios, as in another variation of the embodiment, the user can activate an external auxiliary heat dissipation device, such as a portable air cooler, as needed, to guide airflow to the heat dissipation fins 20 area through the ventilation holes provided in the housing to enhance heat dissipation capacity.

[0098] After use, the user can turn off the power to the laser device, allowing the cooling fan 3 to continue running for a period of time to dissipate residual heat. Once the internal temperature drops to a safe threshold, the cooling fan will stop running. At this point, the user can pull out drawer 5 to replace or recharge the battery 6.

[0099] During battery replacement, care should be taken to keep the contact surfaces of metal contacts 52 and power control board 72 terminals clean, and the wear of the contact points should be checked regularly according to long-term use to ensure long-term electrical connection reliability.

[0100] Alternative embodiments of the fiber laser device described in this example are as follows:

[0101] To facilitate understanding by those skilled in the art and implementation of the present invention according to different practical application scenarios, the following alternative implementation schemes are further described in this embodiment, which are not intended to limit the scope of protection of the claims.

[0102] The power supply structure can be replaced in the above embodiments, where the power supply component uses a drawer-type battery structure. However, the present invention can also use a detachable backpack-type power bank connected to the body via a pin. For example, the backpack-type power supply unit can be directly connected to the bottom power interface via a pin mechanism, and an anti-tipping lock can be added to enhance stability. In this solution, the metal contacts can be replaced with spring-loaded contact springs to withstand high current surges.

[0103] Replacement solutions for heat dissipation structures include adding multiple heat pipes or using a combination of heat pipes and heat sinks for higher power fiber lasers, and even adding air ducts or dust filters to the cooling fan to improve heat dissipation efficiency and adapt to dusty environments. In extreme high-temperature environments, a water-cooled heat dissipation module can be integrated to replace the pure air-cooled structure, with water circulation pipes connecting to the heat exchanger and placing it outside the enclosure for stronger heat dissipation.

[0104] Optical output structure alternatives include the use of interchangeable lens structures for different processing tasks, with quick-release locking mechanisms to allow users to quickly change lens modules with different focal lengths as needed; the optical fiber 10 can also be implemented using multi-core optical fiber or special spot modulation optical fiber to achieve more complex beam output modes.

[0105] In summary, the device in this embodiment adopts a drawer-type replaceable battery structure, embedding the power module in the bottom of the device. The battery can be quickly replaced and stably powered through sliding rail limiting and contact power supply, which significantly improves the continuous operation capability of the device in the absence of external power supply environment, and enhances mobility and practicality.

[0106] The device in this embodiment constructs a multi-stage heat exchange path of heat pipe + heat dissipation fins + horizontal cooling fan within a limited volume, forming a stable airflow circulation system to achieve centralized cooling of the laser pump source and power supply area, ensuring the stability of laser output power and system thermal safety.

[0107] The device in this embodiment maximizes functional density by integrating a laser module, optical system, power supply unit, and heat sink within a single enclosure. This significantly improves system integrity and vibration resistance without increasing volume, and facilitates transportation, deployment, and on-site installation.

[0108] The enclosed housing of the device in this embodiment, combined with a removable sealing plate, provides excellent sealing and ease of maintenance, making it suitable for various high-intensity, high-frequency operation scenarios such as field construction, emergency repairs, and emergency marking.

[0109] The laser pump source of the device in this embodiment is output through a bundled optical fiber and collimated by a stable optical structure. It outputs a laser beam with good coaxiality and direction retention, which helps to improve processing accuracy and system reliability.

[0110] This embodiment provides a portable, air-cooled fiber laser device with a compact structure, high functional integration, and suitability for operation in the field or without external power supply environments. By highly integrating the laser pump source, removable battery module, power control board, compact heat dissipation components, and optical output components into a single housing, and combining a drawer-type power supply structure with a highly efficient air-cooling design, it solves the problems of large size, low heat dissipation efficiency, and strong power dependence of existing laser systems. This device is not only easy to carry, maintain, and deploy, but also has excellent heat dissipation and battery life, making it widely applicable to complex work sites and possessing significant practical value and industrialization prospects.

[0111] The device in this embodiment has a compact structure, efficient heat dissipation, and is easy to carry. It has good heat dissipation performance, independent power supply capability, and environmental adaptability. It is suitable for various application scenarios such as field operations and emergency use, and has good practicality and promotion value.

[0112] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A portable air-cooled fiber laser device, characterized in that, include: The enclosure (7) is formed by a top cover plate (2), a bottom base plate (4) and multiple side sealing plates (71); The laser emitting assembly includes a laser pump source (1) mounted on the top cover plate (2) and an optical fiber and its optical elements (8) disposed below the bottom substrate (4), which are connected by an optical fiber (10) to output a laser beam through a laser output end (9) on the housing (7). The power supply assembly includes a drawer (5) installed below the bottom substrate (4) and a removable battery (6) disposed therein. The battery (6) supplies power to the laser pump source (1) by connecting to a power control board (72) inside the housing (7). The bottom of the battery (6) is provided with at least one limiting protrusion (61), and the inside of the drawer (5) is provided with a limiting groove (55). After the limiting protrusion (61) is inserted into the limiting groove (55), the battery (6) is axially and radially limited and positioned inside the drawer. The drawer (5) is provided with metal contacts (52) for contacting the corresponding conductive connectors of the power control board (72). The metal contacts (52) form a dynamic contact with the power control board during the drawer closing process. The drawer (5) is slidably connected to the bottom substrate (4) through tenon and mortise slide rails (51) provided on its side or bottom. The slide rails are limit guide structures. The front end of the drawer is provided with a limit block (54) and a limit bead (53) for cooperation. After the drawer is fully pushed in, the limit bead is locked into the preset slot to achieve structural self-locking. A heat dissipation engine is disposed between the laser pump source (1) and the bottom substrate (4) on which the optical fiber and its optical components (8) are installed, forming a sandwich structure. It includes multiple heat dissipation fins (20) and heat pipes (30) embedded therein. The heat dissipation fins (20) contact the top cover plate (2) and the bottom substrate (4) to receive the heat generated by the laser and conduct it to the surface of the heat dissipation fins (20) and the heat pipes (30) for uniform diffusion. The heat pipes (30) are embedded in the fin group composed of multiple heat dissipation fins (20) in an orderly and staggered manner. Each heat dissipation fin (20) is provided with through holes. Multiple through holes arranged continuously along the length direction form a mounting groove. The heat pipes (30) are embedded in the mounting groove, so that the heat pipes (30) and the fin group form an integral embedded structure. The air-cooled assembly includes multiple cooling fans (3) installed on the side sealing plate (71). The cooling fans form a transverse ventilation channel corresponding to the cooling engine, which drives external air to pass through the heat dissipation area along the gap of the heat dissipation fins (20) to achieve directional air cooling and heat dissipation. The cooling fans (3) are installed at at least one fan mounting hole (31) on the side sealing plate (71). The cooling fans are aligned with the heat dissipation fins (20) to form a transverse direct-blowing cold air channel. The airflow is guided through the heat dissipation assembly through the internal air duct design of the housing to maximize the directional heat dissipation efficiency. The laser emitting component, power supply component, heat dissipation engine and control circuit are all integrated in the box (7), so that the optical path, power supply path and heat dissipation path are arranged in a coordinated manner in the confined space, and a fiber laser system with compact structure, high thermal control efficiency, no need for external power supply and suitable for field mobile operation and portable emergency use is constructed. The sandwich structure layout further improves the integration and space utilization of the system.

2. The apparatus according to claim 1, characterized in that, The laser pump source (1) includes multiple semiconductor lasers arranged in parallel on the top cover plate (2). The multiple lasers are combined through a fiber optic structure and connected to the optical fiber (10) to output a high-intensity laser beam with stable power.

3. The apparatus according to claim 1, characterized in that, The optical fiber and its optical components (8) are fixedly installed below the bottom substrate (4). The beam output from the pump source is received by the precision focusing assembly and collimated before being output. The optical fiber (10) has a beam stabilization structure in the connection path to ensure the coaxiality and directional stability of the high-power laser output.

4. The apparatus according to claim 1, characterized in that, At least one of the multiple side sealing plates (71) is a detachable sealing plate, and the remaining side sealing plates are fixedly connected to the top cover plate (2) and the bottom base plate (4). The detachable sealing plates are installed by screwing or sliding lock, which is used to facilitate the replacement of internal components and maintenance without damaging the overall structure.

5. The apparatus according to claim 1, characterized in that, The device supports establishing a connection with an external control terminal via wired or wireless communication. The control terminal includes a mobile device or a computer device, used for real-time remote control and parameter configuration of the laser's on / off status, power output, operating mode, and power supply status.

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