A laser marking device

Abstract

An embodiment of the present application provides a laser marking device, which includes a laser, an electrical control board, a laser power supply, an axial flow fan, and a cabinet body; the axial flow fan includes a first axial flow fan and a second axial flow fan; the laser, the electrical control board, the laser power supply, and the axial flow fan are arranged in the cabinet body, and an air inlet and an air outlet are formed on the cabinet body. The air inlet includes a first air inlet and a second air inlet, and the air outlet includes a first air outlet and a second air outlet; the first axial flow fan and the second axial flow fan are respectively arranged at corresponding positions of the first air outlet and the second air outlet. The first air inlet, the internal space of the laser, the first air outlet, and the first axial flow fan form a first air duct, and the second air inlet, the internal space of the laser power supply, the electrical control board space, the second axial flow fan, and the second air outlet form a second air duct. The laser marking device in the embodiment of the present application can achieve good heat dissipation of the laser, the electrical control board, and the laser power supply.

Description

Technical Field

[0001] This application relates to the technical field of laser marking, and particularly to a laser marking device. Background Art

[0002] Inside the existing laser marking devices, heat-generating components such as lasers, electrical control boards, and laser power supplies will dissipate heat during the operation of the devices. The prior art fails to well consider the heat dissipation problem of the whole machine. At the same time, the air flow direction of the heat-generating components themselves does not match the air flow direction of the device for heat dissipation, and the heat dissipation effect of the device is not ideal. Summary of the Invention

[0003] In view of this, the embodiments of this application expect to provide a laser marking device to achieve a good heat dissipation function.

[0004] To achieve the above object, the embodiments of this application provide a laser marking device, which includes:

[0005] A laser, for laser marking processing;

[0006] An electrical control board, electrically connected to the laser;

[0007] A laser power supply, electrically connected to the laser and the electrical control board respectively;

[0008] Axial fans, for dissipating heat from the laser, the electrical control board, and the laser power supply. The axial fans include a first axial fan and a second axial fan;

[0009] A cabinet, in which the laser, the electrical control board, the laser power supply, and the axial fans are respectively arranged. An air inlet and an air outlet are formed on the cabinet. The air inlet includes a first air inlet and a second air inlet, and the air outlet includes a first air outlet and a second air outlet;

[0010] The first axial fan and the second axial fan are respectively arranged at corresponding positions of the first air outlet and the second air outlet. The first air inlet, the internal space of the laser, the first air outlet, and the first axial fan are connected to form a first air duct, and the second air inlet, the internal space of the laser power supply, the space of the electrical control board, the second axial fan, and the second air outlet are connected to form a second air duct.

[0011] In some embodiments, the cabinet body includes a housing and a partition. The air inlet and the air outlet are formed on the housing. The partition divides the housing into a first cabinet body and a second cabinet body that are partially connected. The laser is located in the first cabinet body, and the laser power supply is located in the first cabinet body and is connected to the communication space of the partition. The electrical control board is located in the second cabinet body. The first air inlet, the second air inlet, and the first air outlet are respectively located on the housing where the first cabinet body is located. The first air inlet and the second air inlet are located on the same surface of the housing, and the first air outlet is located on a different surface of the housing. The second air outlet is located on the housing where the second cabinet body is located.

[0012] In some embodiments, the laser is located in the upper part of the first cabinet body, the electrical control board is located in the upper part of the second cabinet body, and the laser power supply is located in the lower part of the cabinet body, and is respectively arranged at intervals with the laser and the electrical control board.

[0013] In some embodiments, the first air inlet and the laser are arranged at intervals relative to each other in a first direction, and the laser and the first axial flow fan are arranged at intervals in a second direction. The path of the first air duct is formed such that air enters from the first air inlet, travels along the first direction to the laser, travels from the laser along the second direction to the first axial flow fan, and flows out from the first air outlet. The first direction and the second direction are perpendicular.

[0014] In some embodiments, a first sub-air inlet, a first sub-air outlet, and a second sub-air outlet are formed on the laser. The first sub-air inlet is located on a side of the laser close to the first air inlet along the first direction. The first sub-air outlet and the second sub-air outlet are arranged at intervals relative to each other on the upper and lower sides along the second direction. A laser sub-air duct is formed inside the laser, and the laser sub-air duct communicates with the first sub-air inlet, the first sub-air outlet, and the second sub-air outlet.

[0015] In some embodiments, the electrical control board forms a bent first control board and a second control board. The first control board is located in the second cabinet body, and the second control board serves as the partition between the first cabinet body and the second cabinet body.

[0016] In some embodiments, the laser power supply is arranged in a first direction, and the first control board and the second axial flow fan are arranged at a relative interval in a second direction; the path of the second air duct is formed such that air enters from the second air inlet, flows along the first direction to the laser power supply, flows from the laser power supply along a third direction to the electrical control board, flows from the electrical control board along the second direction to the second axial flow fan, and flows out from the second air outlet; the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0017] In some embodiments, a power air inlet and a power air outlet are formed on the laser power supply, the power air inlet and the power air outlet are arranged at a relative interval along the first direction, the power air inlet is located on one side of the laser power supply close to the second air inlet, and the power air outlet is located on one side of the laser power supply far from the second air inlet; a laser power supply sub-air duct is formed inside the laser power supply, and the laser power supply sub-air duct communicates the power air inlet and the power air outlet.

[0018] In some embodiments, a third air inlet is further formed on the cabinet body, the third air inlet and the laser power supply are arranged at a relative interval along the first direction, and the third air inlet, the electrical control board space, the second axial flow fan, and the second air outlet communicate to form a third air duct; the path of the third air duct is formed such that air enters from the third air inlet, flows along the first direction to the internal space of the cabinet body, flows from the internal space of the cabinet body along a third direction to the electrical control board space, flows from the electrical control board along the second direction to the second axial flow fan, and flows out from the second air outlet; the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0019] In some embodiments, the cabinet body is provided with an intake filter or a louvered air window at the air inlet.

[0020] The laser marking device provided by the embodiments of the present application reasonably arranges the positions of components such as a laser, an electrical control board, and a laser power supply in the cabinet body. The first air duct and the second air duct through which air can smoothly flow are formed between the components. The axial flow fan can drive the air in the cabinet body to stably discharge from the air outlet along the first air duct and the second air duct, so that a stable flow path of the air in the cabinet body is formed. In this way, air enters the cabinet body through the first air inlet, passes through the internal space of the laser to take away the heat dissipated by the laser, and then is discharged from the first air outlet under the driving action of the first axial flow fan, realizing the heat dissipation of the laser. Air enters the cabinet body through the second air inlet, passes through the internal spaces of the laser power supply and the electrical control board respectively to take away the heat dissipated by the electrical control board and the laser power supply, and then is discharged from the second air outlet under the driving action of the second axial flow fan, realizing the heat dissipation of the electrical control board and the laser power supply. Description of the Drawings

[0021] Figure 1 This is a schematic structural diagram of a laser marking device provided by an embodiment of the present application. Among them, to show the internal structure of the device, part of the wall surface of the cabinet is made transparent;

[0022] Figure 2 This is a schematic structural diagram of a laser marking device provided by an embodiment of the present application from another perspective. Among them, to show the internal structure of the device, part of the wall surface of the cabinet is made transparent;

[0023] Figure 3 This is a schematic structural diagram of a laser provided by an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of an electrical control board provided by an embodiment of the present application;

[0025] Figure 5 This is a schematic structural diagram of a laser power supply provided by an embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of a first air duct provided by an embodiment of the present application. The thick dashed line is the flow path of the first air duct, and the direction indicated by the arrow is the air flow direction;

[0027] Figure 7 This is a schematic diagram of a second air duct provided by an embodiment of the present application. The thick dashed line is the flow path of the second air duct, and the direction indicated by the arrow is the air flow direction;

[0028] Figure 8 This is a schematic diagram of a laser sub-air duct provided by an embodiment of the present application. The thick dashed line is the flow path of the laser sub-air duct, and the direction indicated by the arrow is the air flow direction;

[0029] Figure 9 This is a schematic diagram of a laser power supply sub-air duct provided by an embodiment of the present application. The thick dashed line is the flow path of the laser power supply sub-air duct, and the direction indicated by the arrow is the air flow direction.

[0030] Explanation of reference numerals

[0031] Laser marking device 1; First air inlet 1a; First air outlet 1b; Second air inlet 1c; Second air outlet 1d; Third air inlet 1e; Laser 11; First sub-air inlet 11a; First sub-air outlet 11b; Second sub-air outlet 11c; Electrical control board 12; First control board 121; Second control board 122; Laser power supply 13; Power supply air inlet 13a; Power supply air outlet 13b; First axial flow fan 14; Second axial flow fan 15; Cabinet 16; First cabinet 161; Second cabinet 162; Air intake filter 17. Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments may be combined with each other. The detailed description in the specific implementation manners should be understood as an explanatory illustration of the gist of the present application and should not be regarded as an improper limitation of the present application.

[0033] In the description of the present application, the orientation or positional relationship of "top" and "bottom" is based on the Figure 1 orientation or positional relationship shown. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0034] Please refer to Figure 1 and Figure 2 , an embodiment of the present application provides a laser marking device 1. The laser marking device 1 includes a laser 11, an electrical control board 12, a laser power supply 13, an axial flow fan, and a cabinet 16. The laser 11 is used for laser marking processing. The electrical control board 12 is electrically connected to the laser 11. The laser power supply 13 is electrically connected to the laser 11 and the electrical control board 12 respectively. The axial flow fan is used for dissipating heat from the laser 11, the electrical control board 12, and the laser power supply 13. The axial flow fan includes a first axial flow fan 14 and a second axial flow fan 15. The laser 11, the electrical control board 12, the laser power supply 13, and the axial flow fan are respectively arranged in the cabinet 16. An air inlet and an air outlet are formed on the cabinet 16. The air inlet includes a first air inlet 1a and a second air inlet 1c. The air outlet includes a first air outlet 1b and a second air outlet 1d. The first axial flow fan 14 and the second axial flow fan 15 are respectively arranged at corresponding positions of the first air outlet 1b and the second air outlet 1d. The first air inlet 1a, the internal space of the laser 11, the first air outlet 1b, and the first axial flow fan 14 are connected to form a first air duct. The second air inlet 1c, the internal space of the laser power supply 13, the space of the electrical control board 12, the second axial flow fan 15, and the second air outlet 1d are connected to form a second air duct.

[0035] The laser marking device 1 provided by the embodiments of the present application. The laser 11, the electrical control board 12, and the laser power supply 13 disposed in the cabinet 16 will generate heat during the operation of the laser marking device 1. Relatively speaking, the laser 11 generates a relatively high amount of heat during the operation of the device. Therefore, the first air duct mainly solves the heat dissipation of the laser 11, and the second air duct mainly solves the heat dissipation of the electrical control board 12 and the laser power supply 13. The axial flow fan can drive the air in the cabinet 16 to stably discharge from the air outlet, so that a stable flow path of the air in the cabinet 16 is formed. In this way, the air enters the cabinet 16 through the first air inlet 1a, passes through the internal space of the laser 11 to take away the heat dissipated by the laser 11, and then is discharged from the first air outlet 1b under the driving action of the first axial flow fan 14, forming a complete first air duct to achieve the heat dissipation of the laser 11. The air enters the cabinet 16 through the second air inlet 1c, passes through the internal space of the laser power supply 13 and the space of the electrical control board 12 respectively to take away the heat dissipated by the electrical control board 12 and the laser power supply 13, and then is discharged from the second air outlet 1d under the driving action of the second axial flow fan 15, forming a complete second air duct to achieve the heat dissipation of the electrical control board 12 and the laser power supply 13.

[0036] In some embodiments, please refer to Figure 1 and Figure 2 , the cabinet 16 includes a housing and a partition. The air inlets and air outlets are formed on the housing. The partition divides the housing into a first cabinet 161 and a second cabinet 162 that are partially connected; the laser 11 is located in the first cabinet 161, the laser power supply 13 is located in the first cabinet 161 and is connected to the communication space of the partition, and the electrical control board 12 is located in the second cabinet 162; the first air inlet 1a, the second air inlet 1c, and the first air outlet 1b are respectively located on the housing where the first cabinet 161 is located. The first air inlet 1a and the second air inlet 1c are located on the same side of the housing, the first air outlet 1b is located on a different side of the housing, and the second air outlet 1d is located on the housing where the second cabinet 162 is located. That is to say, the laser 11 and the electrical control board 12 are respectively disposed in the first cabinet 161 and the second cabinet 162, and the laser power supply 13 can be located in the first cabinet 161 and is connected to the communication space of the partition. For example, a part of the laser power supply 13 passes through the communication space of the partition and is located in the second cabinet, or the air outlet of the laser power supply 13 is aligned with the communication space of the partition. The first air duct is formed in the first cabinet 161, and the second air duct is formed in the internal space of the laser power supply 13 and the second cabinet 162 through the first cabinet 161.

[0037] It is understandable that the partition board is a partially hollowed plate-shaped structure. Through this hollowed part, the first cabinet 161 and the second cabinet 162 can communicate with each other. The laser power supply 13 is connected to this hollowed part, enabling the circulation of air within the first cabinet 161 and the second cabinet 162. In addition, for the partially hollowed part on the partition board, its specific position is not limited. This hollowed part can be located below the partition board, or above or in the middle of the partition board; the specific way of combining the laser power supply 13 with this hollowed part is not limited. It can be that the laser power supply 13 passes through this hollowed part, or the laser power supply 13 is arranged close to this hollowed part. Exemplarily, please refer to Figure 1 and Figure 2 , the partially hollowed part of the partition board is located below the partition board, and the laser power supply 13 passes through this hollowed part to connect the first cabinet 161 and the second cabinet 162 to each other.

[0038] Specifically, please refer to Figure 6 , the air flowing along the first air duct sequentially passes through the first air inlet 1a on the housing of the first cabinet 161, the internal space of the first cabinet 161, the laser 11 within the first cabinet 161, the internal space of the first cabinet 161, and the first air outlet 1b on the housing of the first cabinet 161, thereby achieving the heat dissipation of the laser 11. The air flowing along the second air duct sequentially passes through the second air inlet 1c on the housing of the first cabinet 161, the laser power supply 13 connecting the first cabinet 161 and the second cabinet 162, the internal space of the second cabinet 162, and the second air outlet 1d on the housing of the second cabinet 162, thereby achieving the heat dissipation of the electrical control board 12 and the laser power supply 13.

[0039] The specific orientation of the relative spacing among the laser 11, the electrical control board 12, and the laser power supply 13 is not limited. Exemplarily, please refer to Figure 1 and Figure 2 , the laser 11 is located in the upper part of the first cabinet 161, the electrical control board 12 is located in the upper part of the second cabinet 162, and the laser power supply 13 is located in the lower part of the cabinet 16, and is spaced apart from the laser 11 and the electrical control board 12 respectively. That is to say, the laser 11 and the electrical control board 12 are respectively arranged in the first cabinet 161 and the second cabinet 162. The laser power supply 13 should be spaced relative to the laser 11 and the electrical control board 12 and located in different orientations. In this way, the mutual interference of the air circulation among the laser 11, the electrical control board 12, and the laser power supply 13 can be reduced, the heat dissipation effect can be better achieved, and at the same time, the internal structural layout of the laser marking device 1 can be made more compact.

[0040] In some embodiments, please refer to Figure 1 and Figure 2, the first air inlet 1a and the laser 11 are arranged at a relative interval along the first direction, and the laser 11 and the first axial flow fan 14 are arranged at an interval along the second direction; the path of the first air duct is formed such that air enters from the first air inlet 1a, flows along the first direction to the laser 11, flows from the laser 11 along the second direction to the first axial flow fan 14, and flows out from the first air outlet 1b; the first direction and the second direction are perpendicular. That is to say, the air flowing along the first air duct directly enters the internal space of the laser 11 from the first air inlet 1a along the first direction, and then is directly discharged from the first air outlet 1b along the second direction under the driving action of the first axial flow fan 14. In this way, the flow path of the first air duct is shortened, the air circulation rate is increased, and thus the heat dissipation effect of the air duct is enhanced.

[0041] In some embodiments, please refer to Figure 3 , characterized in that the laser 11 is formed with a first sub-air inlet 11a, a first sub-air outlet 11b and a second sub-air outlet 11c. The first sub-air inlet 11a is located on the side of the laser 11 close to the first air inlet 1a along the first direction, and the first sub-air outlet 11b and the second sub-air outlet 11c are arranged at a relative interval on the upper and lower sides along the second direction; a laser 11 sub-air duct is formed inside the laser 11, and the laser 11 sub-air duct communicates with the first sub-air inlet 11a, the first sub-air outlet 11b and the second sub-air outlet 11c. That is to say, the internal space of the laser 11 communicates with the internal space of the first cabinet 161 through the first sub-air inlet 11a, the first sub-air outlet 11b and the second sub-air outlet 11c.

[0042] Specifically, please refer to Figure 6 , the air flowing along the first air duct sequentially passes through the first air inlet 1a, the internal space of the first cabinet 161 and the first sub-air inlet 11a of the laser 11 along the first direction and enters the internal space of the laser 11, and then takes out the heat dissipated by the laser 11 through the first sub-air outlet 11b and the second sub-air outlet 11c, and finally passes through the internal space of the first cabinet 161 along the second direction under the action of the first axial flow fan 14 and is discharged from the first air outlet 1b. In this way, the air flow of the complete first air duct is realized.

[0043] In some embodiments, please refer to Figure 4 , the electrical control board 12 is formed into a bent first control board 121 and a second control board 122. The first control board 121 is located inside the second cabinet 162, and the second control board 122 is used as a partition between the first cabinet 161 and the second cabinet 162.

[0044] It should be noted that the layout position and specific shape of the electrical control board 12 can be different. In addition to the above embodiments, the electrical control board 12 can be an integral structure without bending, and its shape can be plate-shaped, circular, polygonal, etc. Moreover, the layout position of the electrical control board 12 can be separately arranged on the partition board or inside the second cabinet 162; the electrical control board 12 can also be formed by connecting multiple integral structures with different shapes or the same shape, and be simultaneously arranged on the partition board and inside the second cabinet 162, or separately arranged on the partition board or inside the second cabinet 162.

[0045] In some embodiments, please refer to Figure 1 and Figure 2 , the laser power supply 13 is arranged along the first direction, and the first control board 121 and the second axial flow fan 15 are relatively spaced along the second direction; the path of the second air duct is formed such that air enters from the second air inlet 1c, flows along the first direction to the laser power supply 13, flows from the laser power supply 13 along the third direction to the electrical control board 12, flows from the electrical control board 12 along the second direction to the second axial flow fan 15, and flows out from the second air outlet 1d; the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0046] Specifically, please refer to Figure 7 , the air flowing along the second air duct directly enters the internal space of the laser power supply 13 from the second air inlet 1c along the first direction, then passes through the space of the electrical control board 12 along the third direction under the driving action of the second axial flow fan 15, and finally directly discharges from the second air outlet 1d along the second direction. In this way, the mutual interference of air flow between the laser power supply 13 and the electrical control board 12 can be reduced, the flow path of the second air duct is shortened, the air circulation rate is accelerated, and thus the heat dissipation effect of the air duct is enhanced.

[0047] In some embodiments, please refer to Figure 5 , a power supply air inlet 13a and a power supply air outlet 13b are formed on the laser power supply 13, the power supply air inlet 13a and the power supply air outlet 13b are relatively spaced along the first direction, the power supply air inlet 13a is located on the side of the laser power supply 13 close to the second air inlet 1c, and the power supply air outlet 13b is located on the side of the laser power supply 13 far from the second air inlet 1c; a laser power supply sub-air duct is formed inside the laser power supply 13, and the laser power supply sub-air duct communicates the power supply air inlet 13a and the power supply air outlet 13b. That is to say, the internal space of the laser power supply 13 is communicated with the internal spaces of the first cabinet 161 and the second cabinet 162 through the power supply air inlet 13a and the power supply air outlet 13b.

[0048] Specifically, please refer to Figure 7The air flowing along the second air duct sequentially passes through the second air inlet 1c, the internal space of the first cabinet body 161, and the power supply air inlet 13a in the first direction and enters the internal space of the laser power supply 13, then takes out the heat dissipated by the laser power supply 13 through the power supply air outlet 13b and enters the internal space of the second cabinet body 162, and then passes through the electrical control board 12 in the third direction under the action of the first axial flow fan 14, and finally is discharged from the second air outlet 1d. In this way, the air flow of the complete second air duct is realized.

[0049] In some embodiments, please refer to Figure 1 and Figure 2 A third air inlet 1e is further formed on the cabinet body 16. The third air inlet 1e is arranged at a relative interval with the laser power supply 13 in the first direction. The third air inlet 1e, the space of the electrical control board 12, the second axial flow fan 15, and the second air outlet 1d are connected to form a third air duct; the path of the third air duct is formed such that air enters from the third air inlet 1e, reaches the internal space of the second cabinet body 162 in the first direction, goes from the internal space of the second cabinet body 162 to the space of the electrical control board 12 in the third direction, goes from the electrical control board 12 to the second axial flow fan 15 in the second direction, and flows out from the second air outlet 1d; the first direction, the second direction, and the third direction are perpendicular to each other pairwise. That is to say, the air flowing along the third air duct is mainly for dissipating the heat of the electrical control board 12. At the same time, the third air inlet 1e can also be arranged at a relative interval with the second control board 122 of the electrical control board 12. In this way, the air flowing along the third air duct can directly enter the space of the electrical control board 12 from the third air inlet 1e and take away the heat dissipated by the electrical control board 12 and be discharged from the second air outlet 1d, thereby shortening the flow path of the third air duct, accelerating the air flow rate, and thus enhancing the heat dissipation effect of the air duct.

[0050] It should be noted that, please refer to Figure 1 and Figure 2 In the embodiment of the present application, the third air inlet 1e is arranged at a relative interval with the laser power supply 13 in the first direction so that the air flowing along the third air duct can sequentially pass through the internal space of the second cabinet body 162 and the space of the electrical control board 12 after entering from the third air inlet 1e. At the same time, it can converge with the air on the second air duct, increasing the flow air volume in the internal space of the second cabinet body 162. In this way, the heat dissipation of the internal space of the second cabinet body 162 can be better realized, and the heat dissipation of the electrical control board 12 can also be better realized.

[0051] Specifically, please refer to Figure 7The air flowing along the third air duct enters the inner space of the second cabinet body 162 through the third air inlet 1e in the first direction, then passes through the electrical control board 12 in the third direction under the action of the first axial flow fan 14, and takes away the heat dissipated by the electrical control board 12, and finally is discharged from the second air outlet 1d. In this way, the air flow of the complete third air duct is realized.

[0052] The form of the auxiliary equipment configured by the cabinet body 16 at the air inlet is not limited. In some embodiments, please refer to Figure 1 and Figure 2 , the cabinet body 16 is provided with an intake air filter 17 at the air inlet. In this way, impurities in the air can be filtered to ensure a good operating environment inside the equipment. In other embodiments, the cabinet body 16 can also be provided with a louvered air window at the air inlet, which can adjust the air intake flow rate of the air inlet by controlling the louvered air window.

[0053] The various embodiments / implementation manners provided in this application can be combined with each other without conflict. The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A laser marking device, characterized in that, Including: A laser for laser marking processing; An electrical control board electrically connected to the laser; A laser power supply electrically connected to the laser and the electrical control board respectively; Axial flow fans for dissipating heat from the laser, the electrical control board and the laser power supply. The axial flow fans include a first axial flow fan and a second axial flow fan; A cabinet body. The laser, the electrical control board, the laser power supply and the axial flow fans are respectively arranged in the cabinet body. An air inlet and an air outlet are formed on the cabinet body. The air inlet includes a first air inlet and a second air inlet, and the air outlet includes a first air outlet and a second air outlet; The first axial flow fan and the second axial flow fan are respectively arranged at corresponding positions of the first air outlet and the second air outlet. The first air inlet, the internal space of the laser, the first air outlet and the first axial flow fan are connected to form a first air duct. The second air inlet, the internal space of the laser power supply, the space of the electrical control board, the second axial flow fan and the second air outlet are connected to form a second air duct. The cabinet body includes a shell and a partition board. The air inlet and the air outlet are formed on the shell. The partition board divides the shell into a first cabinet body and a second cabinet body which are partially connected; The laser is located in the first cabinet body. The laser power supply is located in the first cabinet body and is connected to the communicating space of the partition board. The electrical control board is located in the second cabinet body. Among them, a part of the laser power supply passes through the communicating space of the partition board and is located in the second cabinet body; The first air inlet, the second air inlet and the first air outlet are respectively located on the shell where the first cabinet body is located. The first air inlet and the second air inlet are located on the same surface of the shell, and the first air outlet is located on a different surface of the shell. The second air outlet is located on the shell where the second cabinet body is located. The laser is located in the upper part of the first cabinet body, the electrical control board is located in the upper part of the second cabinet body, and the laser power supply is located in the lower part of the cabinet body and is arranged at intervals with the laser and the electrical control board respectively.

2. The laser marking device according to claim 1, wherein The first air inlet is arranged at a relative interval with the laser in a first direction. The laser is arranged at an interval with the first axial flow fan in a second direction; The path of the first air duct is formed such that air enters from the first air inlet, goes to the laser along the first direction, goes to the first axial flow fan from the laser along the second direction, and flows out from the first air outlet; The first direction and the second direction are perpendicular.

3. The laser marking device according to claim 2, wherein A first sub-air inlet, a first sub-air outlet and a second sub-air outlet are formed on the laser. The first sub-air inlet is located on one side of the laser close to the first air inlet along the first direction. The first sub-air outlet and the second sub-air outlet are arranged at a relative interval on the upper and lower sides along the second direction. A laser sub-air duct is formed in the laser, and the laser sub-air duct communicates the first sub-air inlet, the first sub-air outlet and the second sub-air outlet.

4. The laser marking device according to claim 1, characterized in that, The electrical control board forms a bent first control board and a second control board. The first control board is located inside the second cabinet, and the second control board serves as a partition between the first cabinet and the second cabinet.

5. The laser marking device according to claim 4, characterized in that, The laser power supply is arranged along a first direction, and the first control board and the second axial flow fan are arranged at a relative interval along a second direction; The path of the second air duct is formed such that air enters from the second air inlet, travels along the first direction to the laser power supply, travels from the laser power supply along a third direction to the electrical control board, travels from the electrical control board along the second direction to the second axial flow fan, and flows out from the second air outlet; The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

6. The laser marking device according to claim 5, characterized in that, A power inlet and a power outlet are formed on the laser power supply. The power inlet and the power outlet are arranged at a relative interval along the first direction. The power inlet is located on the side of the laser power supply close to the second air inlet, and the power outlet is located on the side of the laser power supply far from the second air inlet; a laser power supply sub-air duct is formed inside the laser power supply, and the laser power supply sub-air duct communicates the power inlet and the power outlet.

7. The laser marking device according to claim 1, characterized in that, A third air inlet is further formed on the cabinet. The third air inlet and the laser power supply are arranged at a relative interval along the first direction. The third air inlet, the electrical control board space, the second axial flow fan, and the second air outlet communicate to form a third air duct; The path of the third air duct is formed such that air enters from the third air inlet, travels along the first direction to the internal space of the cabinet, travels from the internal space of the cabinet along the third direction to the electrical control board space, travels from the electrical control board along the second direction to the second axial flow fan, and flows out from the second air outlet; The first direction, the second direction, and the third direction are perpendicular to each other in pairs.

8. The laser marking device according to claim 1, characterized in that, The cabinet is configured with an intake filter or a louvered air window at the air inlet.

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