Laser device with power failure prevention module and laser processing equipment

Abstract

The utility model belongs to the technical field of lasers, and particularly relates to a laser with a power failure prevention module and laser processing equipment. The laser comprises a shell and a heat dissipation assembly. The interior of the shell is divided into a first cavity and a second cavity; the battery pack is arranged in the first cavity; the driving board is arranged in the first cavity, and the driving board is powered by the battery pack or the mains supply interface; a control board, wherein the driving board is connected with the control board; the driving plate is electrically connected with the pump source; the resonant cavity is arranged in the second cavity; the battery pack is arranged in the first cavity, so that the battery pack can supply power to the driving board when the mains supply interface is powered off, the laser can still supply enough power to complete processing of a current workpiece under the condition of power failure, and the situation that the workpiece processing progress of the laser is lost due to sudden external power failure is avoided; and the reliability and the stability of the equipment are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of lasers, specifically relating to lasers with anti-power-off modules and laser processing equipment. Background Technology

[0002] Laser cutting is a high-precision processing technology that is widely used in the processing of metallic and non-metallic materials. It mainly uses a high-energy-density laser beam generated by a laser to irradiate the material, causing the material to melt, vaporize, or burn rapidly, thereby achieving cutting.

[0003] However, lasers typically use a single external power supply, converted from an AC-to-DC (AC / DC) or DC-to-DC (DC / DC) power source, to power the laser and main control circuit. Because of this single power source, even a short interruption of the AC or DC power supply can cause unreliable power supply to the laser and main control circuit, posing a risk of lost workpiece processing progress and laser damage due to sudden power outages. Therefore, it is necessary to avoid lost workpiece processing progress and laser damage caused by power outages. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides a laser with a power failure prevention module and laser processing equipment to solve the problems of the laser having a single power supply source, the loss of workpiece processing progress due to sudden external power failure, and the easy damage to the laser.

[0005] One embodiment of this utility model provides a laser with a power-off protection module, comprising:

[0006] A housing and a heat dissipation assembly; the heat dissipation assembly divides the interior of the housing into a first cavity and a second cavity;

[0007] The battery pack is disposed inside the first cavity;

[0008] A drive board is disposed inside the first cavity. The drive board is connected to the battery pack and is powered by the battery pack or the mains power interface.

[0009] A control board is disposed in the first cavity, and the drive board is connected to the control board for supplying power to the control board.

[0010] A pump source is disposed in the first cavity. The drive board is electrically connected to the pump source. The control board is used to control the drive board to supply power to the pump source and control the operation of the pump source.

[0011] A resonant cavity, located inside the second cavity, is used to amplify the pump light output from the pump source;

[0012] The battery pack is configured to supply power to the drive board when the mains power interface is de-energized.

[0013] In one embodiment of this utility model, the battery pack is equipped with a power-off switch, and the battery pack and the mains power interface are electrically connected to the drive board through the power-off switch.

[0014] In one embodiment of this utility model, multiple pump sources are provided, and each of the multiple pump sources is connected to an optical fiber device to transmit the pump light output by the multiple pump sources to the resonant cavity through the optical fiber device.

[0015] In one embodiment of this utility model, the optical fiber device includes a combiner and a ytterbium-doped fiber; the combiner is connected to a plurality of pump sources; the output end of the combiner is connected to the ytterbium-doped fiber, and the combiner is used to couple the pump light output from the plurality of pump sources to the ytterbium-doped fiber.

[0016] In one embodiment of this utility model, the bundle combiner is disposed in the first cavity, and the ytterbium-doped optical fiber is disposed in both the first cavity and the second cavity;

[0017] The resonant cavity is composed of a high-reflection grating and a low-reflection grating, and the resonant cavity is used to enhance the pump light in the ytterbium-doped fiber to form laser light.

[0018] In one embodiment of this utility model, an acoustic-optical Q-switch is further included. The acoustic-optical Q-switch is disposed in the second cavity and is electrically connected to the control board. The acoustic-optical Q-switch is used to adjust the Q value of the resonant cavity.

[0019] In one embodiment of this utility model, the heat dissipation assembly includes a first heat dissipation backplate and a second heat dissipation backplate, a heat dissipation cavity is formed between the first heat dissipation backplate and the second heat dissipation backplate, and heat dissipation fins are provided on the sides of the first heat dissipation backplate and the second heat dissipation backplate opposite to each other.

[0020] In one embodiment of this utility model, the front panel and the rear panel of the housing are respectively provided with a heat dissipation air inlet and a heat dissipation air outlet corresponding to the heat dissipation cavity; at least one heat dissipation fan is provided at the heat dissipation air inlet.

[0021] In one embodiment of this utility model, the rear panel is provided with a power interface, a control line interface, and a laser output interface; the power interface is electrically connected to the battery pack; the control line interface is electrically connected to the driver board and the control board; and the laser output interface is connected to the resonant cavity.

[0022] In one embodiment of this utility model, a laser processing device is also provided, including a laser with a power-off protection module as described in any of the above embodiments.

[0023] The laser and laser processing equipment with anti-power-off module provided by this utility model can achieve the following technical effects:

[0024] 1. By setting up a battery pack inside the first cavity and electrically connecting the battery pack to the drive board, the battery pack can supply power to the drive board when the mains power interface is cut off. This ensures that the laser still has enough power to complete the processing of the current workpiece when the power is off, giving the user time to gradually shut down the laser. This avoids the loss of workpiece processing progress due to sudden external power outages and the easy damage to the laser, thus improving the reliability and stability of the equipment.

[0025] 2. By setting a power-off switch and electrically connecting the battery pack and the mains power interface to the drive board through the power-off switch, the power-off switch can be switched to supply power to the drive board by the battery pack when the mains power interface is de-energized, or switched to supply power to the drive board by the mains power interface when the mains power interface is restored.

[0026] 3. By integrating both the drive board and the control board into the first cavity inside the laser housing, the space occupied by the external control board is reduced, making the overall size of the laser smaller and easier to install and use.

[0027] 4. By placing the battery pack, drive board, control board, and pump source on both sides of the resonant cavity, the local heat accumulation phenomenon caused by the concentrated placement of heat-generating components is avoided, so that the heat generated by the above-mentioned components during operation can be transferred to the external environment in a timely manner through the heat dissipation component. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 A schematic diagram showing the overall structure of the laser of this utility model;

[0030] Figure 2 A front view schematic diagram of the laser of this utility model;

[0031] Figure 3A side view of the laser of this utility model;

[0032] Figure 4 A schematic diagram showing the back structure of the laser of this utility model;

[0033] Figure 5 A schematic diagram showing the other side structure of the laser of this utility model;

[0034] Figure 6 This is a schematic diagram showing the structure of the second cavity of this utility model.

[0035] The attached figures are labeled as follows:

[0036] 1-Housing; 11-First cavity; 12-Second cavity; 13-Front panel; 14-Rear panel; 2-Heat dissipation assembly; 15-Cooling fan; 16-Power interface; 17-Control line interface; 18-Laser output interface; 21-First heat dissipation backplate; 22-Second heat dissipation backplate; 3-Battery pack; 4-Driver board; 5-Control board; 6-Pump source; 61-Band combiner; 7-Resonant cavity; 8-Acousto-optic Q-switch. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please refer to Figures 1-6 One embodiment of this utility model provides a laser with a power-off protection module, comprising:

[0039] The housing 1 and the heat dissipation assembly 2; the heat dissipation assembly 2 divides the interior of the housing 1 into a first cavity 11 and a second cavity 12;

[0040] Battery pack 3 is disposed inside the first cavity 11;

[0041] A drive board 4 is disposed inside the first cavity 11. The drive board 4 is connected to the battery pack 3 and is powered by the battery pack 3 or the mains power interface.

[0042] A control board 5 is disposed in the first cavity 11, and the drive board 4 is connected to the control board 5 and is used to supply power to the control board 5.

[0043] Pump source 6 is disposed in the first cavity 11. The drive board 4 is electrically connected to the pump source 6. The control board 5 is used to control the drive board 4 to supply power to the pump source 6 and control the operation of the pump source 6.

[0044] The resonant cavity 7 is disposed inside the second cavity 12 and is used to amplify the pump light output by the pump source 6;

[0045] The battery pack 3 is configured to supply power to the drive board 4 when the mains power interface is de-energized.

[0046] In this embodiment, by setting a battery pack 3 inside the first cavity 11 and electrically connecting the battery pack 3 to the drive board 4, the battery pack 3 can supply power to the drive board 4 when the mains power interface is disconnected. This ensures that the laser still has enough power to complete the processing of the current workpiece when the power is off, allowing the user time to gradually shut down the laser. This avoids the loss of workpiece processing progress due to sudden external power outages and the easy damage to the laser, thus improving the reliability and stability of the equipment.

[0047] In one embodiment of this utility model, the battery pack 3 is equipped with a power-off switch, and the battery pack 3 and the mains power interface are electrically connected to the drive board 4 through the power-off switch.

[0048] In this embodiment, by setting a power-off switch and electrically connecting the battery pack 3 and the mains power interface to the drive board 4 through the power-off switch, the power-off switch can be switched to supply power to the drive board 4 by the battery pack 3 when the mains power interface is de-energized, or switched to supply power to the drive board 4 by the mains power interface when the mains power interface is restored.

[0049] In one embodiment of this utility model, multiple pump sources 6 are provided, and each of the multiple pump sources 6 is connected to an optical fiber device to transmit the pump light output by the multiple pump sources 6 to the resonant cavity 7 through the optical fiber device.

[0050] In this embodiment, multiple pump sources 6 can operate in parallel, with each pump source 6 providing pump light to an optical fiber device. The optical fiber device, acting as a transmission medium, effectively transmits the pump light from the multiple pump sources 6 to a resonant cavity 7. Within the resonant cavity 7, the pump light is used to excite the working medium, achieving population inversion and thus generating laser light. Therefore, the laser in this embodiment allows for more flexible adjustment of the output power while maintaining beam quality and stability.

[0051] In one embodiment of this utility model, the optical fiber device includes a combiner 61 and a ytterbium-doped fiber; the combiner 61 is connected to a plurality of pump sources 6; the output end of the combiner 61 is connected to the ytterbium-doped fiber, and the combiner 61 is used to couple the pump light output from the plurality of pump sources 6 to the ytterbium-doped fiber.

[0052] Based on existing technology, it is understood that ytterbium-doped fiber is an active fiber doped with the rare earth element ytterbium. It achieves stimulated emission by absorbing the energy of pump light and is a key medium for laser amplification in fiber lasers.

[0053] Therefore, in this embodiment, the beam combiner 61 is connected to multiple pump sources 6, and the beams from the multiple pump sources 6 are combined at the beam combiner 61 and then transmitted to the ytterbium-doped fiber to realize the laser amplification process and improve the efficiency of the laser.

[0054] In one embodiment of this utility model, the bundle combiner 61 is disposed in the first cavity 11, and the ytterbium-doped optical fiber is disposed in the first cavity 11 and the second cavity 12;

[0055] The resonant cavity 7 is composed of a high-reflection grating and a low-reflection grating. The resonant cavity 7 is used to enhance the pump light in the ytterbium-doped fiber to form a laser.

[0056] In this embodiment, the pump light is coupled in the combiner 61 and transmitted through the ytterbium-doped fiber. It is absorbed and amplified by the ytterbium-doped material in the fiber to form a laser beam. The enhanced laser beam enters the resonant cavity 7 and is reflected back and forth between the high-reflection grating and the low-reflection grating. It is further amplified each time it passes through the ytterbium-doped fiber. Finally, after multiple amplifications and reflections, the laser beam is output through the low-reflection grating section to form a laser output.

[0057] In one embodiment of this utility model, an acoustic-optical Q-switch 8 is also included. The acoustic-optical Q-switch 8 is disposed in the second cavity 12 and is electrically connected to the control board 5. The acoustic-optical Q-switch 8 is used to adjust the Q value of the resonant cavity 7.

[0058] Based on existing technology, the Q value is defined as the ratio of the initial energy stored in the resonant cavity 7 to the energy lost within one arc of the oscillation period. A higher Q value indicates slower energy loss in the resonant cavity 7, slower oscillation disappearance, and thus a stronger ability of the resonant cavity 7 to hold energy. In lasers, a high Q value means that the laser can store energy more efficiently, thereby releasing high-peak-power laser pulses when needed.

[0059] In this embodiment, by setting the acousto-optic Q switch 8, the Q value of the resonant cavity 7 can be adjusted to achieve pulse output of the laser, so that the laser can meet the usage requirements of different scenarios.

[0060] In one embodiment of this utility model, the heat dissipation component 2 includes a first heat dissipation backplate 21 and a second heat dissipation backplate 22, a heat dissipation cavity is formed between the first heat dissipation backplate 21 and the second heat dissipation backplate 22, and heat dissipation fins are provided on the sides of the first heat dissipation backplate 21 and the second heat dissipation backplate 22 that are opposite to each other.

[0061] The front panel 13 and rear panel 14 of the housing 1 are respectively provided with a heat dissipation air inlet and a heat dissipation air outlet corresponding to the heat dissipation cavity; at least one heat dissipation fan 15 is provided at the heat dissipation air inlet.

[0062] In this embodiment, the heat dissipation cavity facilitates airflow and heat exchange. Simultaneously, the heat dissipation fins increase the heat dissipation area, improving heat exchange efficiency and facilitating faster heat transfer from the laser's interior to the external environment. Furthermore, at least one cooling fan 15 is installed at the heat dissipation inlet. These fans are responsible for drawing in cool external air into the heat dissipation cavity and simultaneously expelling hot air from the heat dissipation outlet, thereby achieving forced convection cooling. Therefore, the laser provided in this embodiment can effectively dissipate the heat generated during laser operation, ensuring stable laser operation.

[0063] In one embodiment of this utility model, the rear panel 14 is provided with a power interface 16, a control line interface 17 and a laser output interface 18; the power interface 16 is electrically connected to the battery pack 3; the control line interface 17 is electrically connected to the drive board 4 and the control board 5; and the laser output interface 18 is connected to the resonant cavity 7.

[0064] In this embodiment, the power interface 16 is used to connect to the mains power interface, and the power interface 16 can also be electrically connected to the battery pack 3 to charge the battery pack 3 when it is not fully charged; the control line interface 17 is electrically connected to the drive board 4 and the control board 5, allowing the external control system to write instructions to the drive board 4 through the control line interface 17, such as start, stop, power adjustment, etc., and to receive the working status information of the laser.

[0065] In one embodiment of this utility model, a laser processing device is also provided, including a laser with a power-off protection module as described in any of the above embodiments.

[0066] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A laser with a power-off protection module, characterized in that, include: The housing (1) and the heat dissipation assembly (2); the heat dissipation assembly (2) divides the interior of the housing (1) into a first cavity (11) and a second cavity (12); The battery pack (3) is disposed inside the first cavity (11); A drive board (4) is disposed inside the first cavity (11). The drive board (4) is connected to the battery pack (3). The drive board (4) is powered by the battery pack (3) or the mains power interface. A control board (5) is disposed in the first cavity (11), and the drive board (4) is connected to the control board (5) for supplying power to the control board (5); A pump source (6) is disposed in the first cavity (11). The drive board (4) is electrically connected to the pump source (6). The control board (5) is used to control the drive board (4) to supply power to the pump source (6) and control the operation of the pump source (6). A resonant cavity (7) is disposed inside the second cavity (12) and is used to amplify the pump light output by the pump source (6); The battery pack (3) is configured to supply power to the drive board (4) when the mains power interface is de-energized.

2. The laser with an anti-power-off module as described in claim 1, characterized in that, The battery pack (3) is equipped with a power-off switch, and the battery pack (3) and the mains power interface are electrically connected to the drive board (4) through the power-off switch.

3. The laser with an anti-power-off module as described in claim 1, characterized in that, Multiple pump sources (6) are provided, and each pump source (6) is connected to an optical fiber device to transmit the pump light output by the multiple pump sources (6) to the resonant cavity (7) through the optical fiber device.

4. The laser with an anti-power-off module as described in claim 3, characterized in that, The optical fiber device includes a combiner (61) and a ytterbium-doped fiber; the combiner (61) is connected to a plurality of pump sources (6); the output end of the combiner (61) is connected to the ytterbium-doped fiber, and the combiner (61) is used to couple the pump light output from the plurality of pump sources (6) to the ytterbium-doped fiber.

5. The laser with an anti-power-off module as described in claim 4, characterized in that, The bundle combiner (61) is disposed in the first cavity (11), and the ytterbium-doped fiber is disposed in the first cavity (11) and the second cavity (12); The resonant cavity (7) is composed of a high-reflection grating and a low-reflection grating. The resonant cavity (7) is used to enhance the pump light in the ytterbium-doped fiber to form a laser.

6. The laser with an anti-power-off module as described in claim 5, characterized in that, It also includes an acoustic-optical Q-switch (8), which is disposed in the second cavity (12) and electrically connected to the control board (5). The acoustic-optical Q-switch (8) is used to adjust the Q value of the resonant cavity (7).

7. The laser with a power-off protection module as described in claim 1, characterized in that, The heat dissipation assembly (2) includes a first heat dissipation backplate (21) and a second heat dissipation backplate (22), a heat dissipation cavity is formed between the first heat dissipation backplate (21) and the second heat dissipation backplate (22), and heat dissipation fins are provided on the sides of the first heat dissipation backplate (21) and the second heat dissipation backplate (22) opposite to each other.

8. The laser with a power-off protection module as described in claim 7, characterized in that, The front panel (13) and rear panel (14) of the housing (1) are respectively provided with a heat dissipation air inlet and a heat dissipation air outlet corresponding to the heat dissipation cavity; at least one heat dissipation fan (15) is provided at the heat dissipation air inlet.

9. The laser with a power-off protection module as described in claim 8, characterized in that, The rear panel (14) is provided with a power interface (16), a control line interface (17) and a laser output interface (18); the power interface (16) is electrically connected to the battery pack (3); the control line interface (17) is electrically connected to the drive board (4) and the control board (5); the laser output interface (18) is connected to the resonant cavity (7).

10. A laser processing device, characterized in that, Including the laser with a power-off protection module as described in any one of claims 1-9.

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