A sealing structure, a laser and a laser processing apparatus

By using a removable housing cover and sealing structure in the laser, the problem of needing to machine threaded holes in the water-cooled plate was solved, thereby reducing processing difficulty and cost and improving maintenance convenience.

CN224400904UActive Publication Date: 2026-06-23SU ZHOU MAXPHOTONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SU ZHOU MAXPHOTONICS CO LTD
Filing Date
2025-07-04
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing sealing structure of laser water-cooled plates requires the machining of multiple threaded holes, which increases the machining difficulty and cost, and the installation and maintenance of the sealing plate are inconvenient.

Method used

The system employs a sealing structure that includes an outer cover plate and a seal. The outer cover plate is detachably connected to the laser housing, and the seal elastically abuts against the water-cooling plate. The water-cooling plate can be sealed by disassembling the sealing structure, thus avoiding the need to machine threaded holes on the water-cooling plate.

Benefits of technology

It reduces the processing difficulty of water-cooled plates and the overall cost of the machine, reduces production workload, improves maintenance convenience, and simplifies the later maintenance process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of laser, specifically disclose a sealing structure, laser and laser processing equipment, the sealing structure includes shell cover plate and sealing element, the shell cover plate includes cover plate bottom plate and cover plate sealing edge, cover plate sealing edge sets up on cover plate bottom plate, and cover plate sealing edge is annular structure, cover plate bottom plate is detachably connected in the laser shell, sealing element is located on cover plate sealing edge, when cover plate bottom plate is connected in the laser shell, sealing element elastically abuts on the water cooling plate, the utility model discloses through using the sealing structure, need not to process multiple thread holes to water cooling plate, has reduced the processing difficulty of water cooling plate, and has reduced the sealing plate on water cooling plate and separately sets up, to reduce the whole machine cost, reduce production workload, when the later maintenance, through the sealing structure of dismantling off the laser shell installation mouth place, can synchronous remove the sealing of water cooling plate, to improve maintenance convenience.
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Description

Technical Field

[0001] This utility model relates to the field of laser technology, and in particular to a sealing structure, a laser, and laser processing equipment. Background Technology

[0002] A laser is a device that emits laser light and is widely used in welding, fiber optic communication, laser therapy, laser cutting, 3D printing, laboratory experiments, military applications, and entertainment. Lasers are equipped with water-cooling plates. Because lasers generate a large amount of heat during operation, if not dissipated in time, the equipment temperature will rise, affecting its stability and lifespan. Water-cooling plates use water circulation to remove the heat generated by the laser, effectively reducing its temperature and ensuring stable operation.

[0003] Currently, the surface of the water-cooled plate in lasers needs to be sealed to ensure the stability and reliability of the equipment. In existing technology, the surface of the laser water-cooled plate is sealed by adding a sealing plate. Threaded holes are made on the surface of the water-cooled plate, and after the sealing plate is machined, through holes corresponding to the threaded holes are made. Fixing screws are threaded through the through holes and connected to the threaded holes to achieve a seal on the surface of the water-cooled plate. However, in this sealing structure, the water-cooled plate needs to be machined with multiple threaded holes, which increases the processing difficulty of the water-cooled plate. Moreover, the processing technology of the sealing plate is complex, and the high material cost leads to a high overall cost. The sealing plate needs to be installed with multiple fixing screws, which increases the production workload. In later maintenance, all fixing screws need to be removed before the sealing plate can be taken off, which causes great inconvenience to maintenance. Utility Model Content

[0004] The purpose of this utility model is to provide a sealing structure, a laser, and laser processing equipment to solve the problems in the existing sealing structure, such as the need to process multiple threaded holes for the water-cooling plate, which increases the processing difficulty of the water-cooling plate, and the complex processing technology of the sealing plate, which leads to high material costs and high overall machine costs. The sealing plate also requires the installation of multiple fixing screws, which increases the production workload. Furthermore, during later maintenance, all fixing screws need to be removed before the sealing plate can be taken off, which brings great inconvenience to maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a sealing structure for sealing one side of a water-cooling plate inside a laser housing. The sealing structure includes:

[0007] The housing cover plate includes a cover plate base plate and a cover plate sealing edge. The cover plate sealing edge is disposed on the cover plate base plate and has an annular structure. The cover plate base plate is detachably connected to the laser housing and is used to block the mounting port of the laser housing.

[0008] A sealing element is provided on the sealing edge of the cover plate, the bottom plate of the cover plate is connected to the laser housing, and the sealing element elastically abuts against the water cooling plate.

[0009] As an alternative to the above-mentioned sealing structure, the sealing edge of the cover plate is any one of the following annular structures: circular ring, elliptical ring, racetrack-shaped ring, triangular ring, rectangular ring, or polygonal ring.

[0010] As an alternative to the above-mentioned sealing structure, the sealing element includes a mounting part and a deformation sealing part connected to the mounting part. The mounting part has an annular mounting groove, and the mounting part can be inserted into the sealing edge of the cover plate through the annular mounting groove.

[0011] As an alternative to the above-mentioned sealing structure, the deformation sealing part is hollow inside to form a deformation cavity.

[0012] As an alternative to the above-mentioned sealing structure, the intersection of the cover plate bottom plate and the cover plate sealing edge is coated with sealant.

[0013] As an alternative to the above-mentioned sealing structure, a fiber optic disk is provided on one side of the water-cooled plate, and the sealing element abuts against the side of the water-cooled plate with the fiber optic disk, and the sealing element surrounds the fiber optic disk.

[0014] As an alternative to the above-mentioned sealing structure, the bottom plate of the cover plate has a mounting hole, through which the connector can be connected to the laser housing.

[0015] As an alternative to the above-mentioned sealing structure, the edge of the cover plate bottom plate is folded to form a positioning flange. When the cover plate bottom plate is placed on the laser housing, the positioning flange can abut against the side wall of the laser housing.

[0016] This utility model provides a laser, including the sealing structure described above. The laser also includes a laser housing and a water-cooling plate disposed inside the laser housing. One side of the laser housing has a mounting port. The sealing structure is detachably connected to the laser housing and is used to block the mounting port and seal the side of the water-cooling plate.

[0017] This utility model provides a laser processing device, including the laser as described above.

[0018] The beneficial effects of this utility model are as follows:

[0019] The sealing structure includes a housing cover and a sealing element. The housing cover includes a base plate and a sealing edge, with the sealing edge positioned on the base plate and having a ring-shaped structure. The base plate is detachably connected to the laser housing to seal the mounting opening of the laser housing. This allows for maintenance of the components inside the laser housing by disassembling the sealing structure. The sealing element is located on the sealing edge of the cover plate, and the base plate is connected to the laser housing. The sealing element elastically abuts against the water-cooling plate, thus sealing one side of the water-cooling plate inside the laser housing. Using this sealing structure eliminates the need to machine multiple threaded holes in the water-cooling plate, reducing its processing difficulty and eliminating the need for a separate sealing plate, thereby reducing overall machine costs and production workload. Furthermore, during later maintenance, the seal on the water-cooling plate can be simultaneously released by removing the sealing structure at the laser housing mounting opening, improving maintenance convenience. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the sealing structure provided in an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view along the BB direction;

[0022] Figure 3 A disassembly diagram showing the sealing structure provided in this embodiment of the invention installed on the laser housing;

[0023] Figure 4 A bottom view of the sealing structure provided in this embodiment of the present invention installed on the laser housing;

[0024] Figure 5 for Figure 4 A cross-sectional view along the CC direction;

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0026] In the picture:

[0027] 1. Outer shell cover plate; 11. Cover plate bottom plate; 111. Mounting hole; 112. Positioning flange; 12. Cover plate sealing edge; 2. Sealing element; 21. Mounting part; 211. Annular mounting groove; 22. Deformation sealing part; 221. Deformation cavity; 3. Laser housing; 31. Water cooling plate; 311. Fiber optic tray; 32. Mounting port. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] like Figures 1-6 As shown, this embodiment provides a sealing structure for sealing one side of the water-cooled plate 31 inside the laser housing 3.

[0033] The sealing structure includes a housing cover plate 1 and a sealing element 2. The housing cover plate 1 includes a cover plate base plate 11 and a cover plate sealing edge 12. The cover plate sealing edge 12 is disposed on the cover plate base plate 11 and has an annular structure. The cover plate base plate 11 is detachably connected to the laser housing 3 and is used to seal the mounting port 32 of the laser housing 3. Thus, by disassembling the sealing structure, the components inside the laser housing 3 can be maintained. Optionally, the cover plate sealing edge is any annular structure selected from circular rings, elliptical rings, racetrack-shaped rings, triangular rings, rectangular rings, or polygonal rings. Optionally, the sealing structure is an upper cover plate or a lower cover plate of the laser. Further optionally, the cover plate sealing edge 12 is welded to the cover plate base plate 11, and the cover plate base plate 11 and the cover plate sealing edge 12 are set at an angle. At the same time, the intersection of the cover plate base plate 11 and the cover plate sealing edge 12 is coated with sealant. The application of sealant ensures the reliability of the seal between the cover plate base plate 11 and the cover plate sealing edge 12.

[0034] The sealing element 2 is located on the sealing edge 12 of the cover plate. The bottom plate 11 of the cover plate is connected to the laser housing 3. The sealing element 2 elastically abuts against the water-cooling plate 31, so that the sealing element 2 on the sealing structure can seal one side of the water-cooling plate 31 inside the laser housing 3. By using this sealing structure, it is not necessary to process multiple threaded holes in the water-cooling plate 31, which reduces the processing difficulty of the water-cooling plate 31 and eliminates the need to set a separate sealing plate on the water-cooling plate 31, thereby reducing the overall cost and production workload. At the same time, during later maintenance, the sealing structure at the mounting port 32 of the laser housing 3 can be removed simultaneously to release the seal on the water-cooling plate 31, thereby improving maintenance convenience. Optionally, the seal 2 is made of silicone, EPDM, PVC or TPE. The seal 2 made of the above materials can deform and has strong adhesion, and can be tightly bonded to the surface of various materials. This adhesion allows the seal 2 to be tightly attached to the water-cooled plate 31 to form a complete sealing layer to improve the sealing performance. At the same time, the seal 2 made of the above materials has good flame retardant properties and a temperature resistance of ≥90℃.

[0035] like Figure 6 As shown, the sealing element 2 includes an installation part 21 and a deformable sealing part 22 connected to the installation part 21. The installation part 21 has an annular installation groove 211. The installation part 21 is inserted into the sealing edge 12 of the cover plate through the annular installation groove 211. The setting of the annular installation groove 211 can reduce the installation difficulty of the sealing element 2 on the sealing edge 12 of the cover plate, so as to facilitate the subsequent replacement of the sealing element 2. The deformable sealing part 22 can deform to achieve elastic contact with the water-cooling plate 31.

[0036] Specifically, the deformable sealing part 22 is hollow inside, forming a deformable cavity 221. By providing the deformable cavity 221 within the deformable sealing part 22, the difficulty of deformation of the deformable sealing part 22 can be reduced, thereby improving the sealing capability when the deformable sealing part 22 elastically abuts against the water-cooling plate 31. Optionally, the cross-sectional shape of the deformable cavity 221 can be rectangular, circular, elliptical, or semi-circular. Further optionally, the side of the deformable sealing part 22 that abuts against the water-cooling plate 31 is arranged in an arc shape. This allows the deformable sealing part 22 to deform along the arc surface of the arc structure when it elastically abuts against the water-cooling plate 31, preventing gaps from forming between the deformable sealing part 22 and the water-cooling plate 31 and affecting the seal. Of course, the sealing part 22 can also have other structures; this embodiment does not impose specific limitations. Preferably, the bottom plate 11 of the cover plate and the sealing edge 12 of the cover plate are set at a 90° angle, which can reduce the difficulty of installing the seal 2 on the sealing edge 12 of the cover plate through the annular mounting groove 211. When the deformable sealing part 22 elastically abuts against the water-cooled plate 31 to produce a seal, the bottom of the annular mounting groove 211 of the mounting part 21 can also elastically abut against the sealing edge 12 of the cover plate to produce a seal.

[0037] like Figures 3-5 As shown, a fiber optic disk 311 is provided on one side of the water-cooled plate 31. The sealing member 2 abuts against the side of the water-cooled plate 31 with the fiber optic disk 311 and surrounds the fiber optic disk 311. Thus, the sealing member 2 can seal the fiber optic disk 311 on the water-cooled plate 31 to improve the stability and reliability of the fiber optic disk 311 in extreme environments and ensure stable fiber optic transmission.

[0038] Furthermore, the cover plate 11 has mounting holes 111, through which the connector can pass to the laser housing 3, thereby achieving a detachable connection between the sealing structure and the laser housing 3. This facilitates subsequent maintenance by removing the sealing structure to simultaneously release the seal on the water-cooling plate 31, thus improving maintenance convenience. When the connector passes through the mounting holes 111 to the laser housing 3, the connector can press the seal 2 tightly against the water-cooling plate 31 to achieve a better sealing effect. Meanwhile, the edge of the cover plate 11 is folded to form a positioning flange 112. When the cover plate 11 is placed on the laser housing 3, the positioning flange 112 can abut against the side wall of the laser housing 3, thereby achieving the positioning of the cover plate 11 on the laser housing 3, reducing the difficulty of aligning the mounting hole 111, and making it easier for the connector to pass through the mounting hole 111 and connect to the laser housing 3. In addition, the positioning flange 112 can also improve the overall structural strength of the cover plate 11 and also play a dustproof role for the laser housing 3.

[0039] This embodiment also provides a laser, including the sealing structure described above. The laser also includes a laser housing 3 and a water-cooling plate 31 disposed inside the laser housing 3. One side of the laser housing 3 has a mounting port 32. The sealing structure is detachably connected to the laser housing 3 and is used to block the mounting port 32 and seal the side of the water-cooling plate 31. Thus, by using the sealing structure, the laser can achieve sealing of the water-cooling plate 31 without machining multiple threaded holes in the water-cooling plate 31, reducing the machining difficulty of the water-cooling plate 31 and eliminating the need to separately set a sealing plate on the water-cooling plate 31, thereby reducing the overall cost and production workload. At the same time, during later maintenance, the sealing structure at the mounting port 32 of the laser housing 3 can be removed simultaneously to release the seal on the water-cooling plate 31, thereby improving maintenance convenience.

[0040] This embodiment also provides a laser processing device, including the laser as described above. This laser processing device has low processing difficulty and low material cost, resulting in low overall machine cost and convenient maintenance.

[0041] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A sealing structure for sealing one side of a water-cooled plate (31) inside a laser housing (3), characterized in that, The sealing structure includes: The outer casing cover (1) includes a cover plate bottom plate (11) and a cover plate sealing edge (12). The cover plate sealing edge (12) is disposed on the cover plate bottom plate (11) and the cover plate sealing edge (12) is an annular structure. The cover plate bottom plate (11) is detachably connected to the laser housing (3) and is used to block the mounting port (32) of the laser housing (3). A sealing element (2) is provided on the sealing edge (12) of the cover plate, the bottom plate (11) of the cover plate is connected to the laser housing (3), and the sealing element (2) elastically abuts against the water cooling plate (31).

2. The sealing structure according to claim 1, characterized in that, The sealing edge (12) of the cover plate is any one of the following ring structures: circular ring, elliptical ring, racetrack-shaped ring, triangular ring, rectangular ring or polygonal ring.

3. The sealing structure according to claim 1, characterized in that, The sealing element (2) includes a mounting part (21) and a deformation sealing part (22) connected to the mounting part (21). The mounting part (21) has an annular mounting groove (211), and the mounting part (21) is inserted into the sealing edge (12) of the cover plate through the annular mounting groove (211).

4. The sealing structure according to claim 3, characterized in that, The interior of the deformation sealing part (22) is hollow to form a deformation cavity (221).

5. The sealing structure according to claim 1, characterized in that, The intersection of the cover plate bottom plate (11) and the cover plate sealing edge (12) is coated with sealant.

6. The sealing structure according to claim 1, characterized in that, The water-cooled plate (31) has an optical fiber disk (311) on one side, and the sealing member (2) abuts against the side of the water-cooled plate (31) with the optical fiber disk (311), and the sealing member (2) surrounds the optical fiber disk (311).

7. The sealing structure according to claim 1, characterized in that, The bottom plate (11) of the cover plate has a mounting hole (111), and the connector can pass through the mounting hole (111) to connect to the laser housing (3).

8. The sealing structure according to claim 7, characterized in that, The edge of the cover plate (11) is folded to form a positioning flange (112). When the cover plate (11) is placed on the laser housing (3), the positioning flange (112) can abut against the side wall of the laser housing (3).

9. A laser, characterized in that, Including the sealing structure as described in any one of claims 1 to 8, the laser further includes a laser housing (3) and a water-cooling plate (31) disposed within the laser housing (3), one side of the laser housing (3) has a mounting port (32), and the sealing structure is detachably connected to the laser housing (3) for sealing the mounting port (32) and sealing the side of the water-cooling plate (31).

10. A laser processing device, characterized in that, Including the laser as described in claim 9.