Laser and laser device
By designing a sealing chamber and a micro positive pressure environment in the laser, combined with the use of exhaust devices, the problem of optical components in the laser equipment being contaminated by dust is solved, and the cleanliness and working reliability of the optical system is achieved.
Patent Information
- Application Number
- CN202421301948.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Foreign dust in laser equipment pollutes optical components in the optical path, resulting in reduced laser transmittance, decreased focus performance and damage to optical components.
A laser is designed with a sealing chamber inside its shell, and an optical system is installed in the sealing chamber, and a micro positive pressure environment is formed through the air inlet and exhaust port to prevent external dust from entering. At the same time, the exhaust device is used to increase the air flow rate and enhance the heat dissipation and cleaning effect of the optical system.
Effectively prevent external dust from entering the sealed room, improve the cleanliness and working reliability of the optical system, and enhance the heat dissipation effect on the optical system.
Smart Images
Figure CN222563225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optics, in particular to a laser and laser equipment. Background Art
[0002] In laser equipment, it is a common problem for foreign dust to contaminate optical components in the optical path, which will lead to reduced laser transmittance. Dust attached to the surface of optical components will not only cause laser scattering, but also may cause a decrease in focusing performance and affect the precise convergence of the laser. In addition, the attachments on the optical components will absorb laser energy, which may not only destroy the protective coating on the surface of the component, but also damage the component substrate itself. Utility Model Content
[0003] The main purpose of the utility model is to provide a laser and a laser device, aiming to improve the cleanliness of the optical system in the laser device.
[0004] To achieve the above object, the utility model provides a laser, comprising:
[0005] A housing having a sealed chamber inside, the sealed chamber being used to accommodate the optical system of the laser, the housing also having an air inlet and an exhaust port connected to the sealed chamber, the air intake volume of the air inlet being greater than the exhaust volume of the exhaust port so as to form a positive pressure environment in the sealed chamber;
[0006] An exhaust device is connected to the exhaust port to extract the air in the sealed chamber.
[0007] In one embodiment, the laser further comprises an air inlet valve, and the air inlet valve is disposed at the air inlet to control the flow rate of the air inlet.
[0008] In one embodiment, the laser further comprises an exhaust valve, and the exhaust valve is disposed at the exhaust port to control the flow rate of the exhaust port.
[0009] In one embodiment, the housing comprises:
[0010] A housing having a sealed cavity with a top opening;
[0011] The cover body is buckled at the opening and seals the sealing cavity to form the sealing chamber.
[0012] In one embodiment, the housing further comprises a sealing structure, and the shell body and the cover body are sealedly connected via the sealing structure.
[0013] In one embodiment, a mounting groove is provided at the periphery of the opening of the sealing cavity, the sealing structure comprises a sealing body, the sealing body is embedded in the mounting groove, and the cover body is sealingly matched with the sealing body.
[0014] In one embodiment, the housing is an integrally formed part.
[0015] In one embodiment, the laser further comprises a handle, wherein the handle is disposed on opposite sides of the housing.
[0016] In one embodiment, the air inlet and the air outlet are respectively connected to two opposite sides of the sealed chamber.
[0017] The utility model also provides a laser device, comprising the laser described above.
[0018] Compared with the prior art, in the technical scheme of the utility model, the laser includes a shell, a sealed chamber is arranged inside the shell, the optical system of the laser is arranged in the sealed chamber, and the shell is also provided with an air inlet and an exhaust port, the air inlet and the exhaust port are respectively connected to the sealed chamber, clean air enters the sealed chamber from the air inlet, the air can cool down the optical system and clean the optical system in the sealed chamber, and then is discharged from the exhaust port; in this scheme, the air intake of the air inlet is greater than the exhaust volume of the exhaust port, so that the sealed chamber forms a slight positive pressure relative to the external environment, so that external dust can be prevented from entering the sealed chamber, and the cleanliness of the optical system in the sealed chamber is improved. In addition, in this scheme, the exhaust port is connected to an exhaust device, and the exhaust device can extract the air in the sealed chamber, so that the air flow rate of the exhaust port can be increased, and then the air flow rate in the sealed chamber can be increased, so that the heat dissipation effect on the optical system can be further improved, and dust can be more easily extracted from the sealed chamber, thereby further improving the cleanliness of the optical system, and then improving the working reliability of the laser. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0020] Figure 1 This is a schematic structural diagram of a laser embodiment provided by the utility model.
[0021] Description of Figure Numbers:
[0022] 100. Shell; 200. Inlet valve; 300. Exhaust valve; 400. Handle.
[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0027] In order to improve the cleanliness of the optical system of the laser equipment, the technical solution proposes a laser, comprising:
[0028] The housing 100 has a sealed chamber inside, and the sealed chamber is used to accommodate the optical system of the laser. The housing 100 is also provided with an air inlet and an exhaust port connected to the sealed chamber. The air intake of the air inlet is greater than the exhaust volume of the exhaust port so as to form a positive pressure environment in the sealed chamber.
[0029] An exhaust device is connected to the exhaust port to extract the air in the sealed chamber.
[0030] Compared with the prior art, in the technical scheme of the utility model, the laser includes a housing 100, a sealed chamber is arranged inside the housing 100, and the optical system of the laser is arranged in the sealed chamber. The housing 100 is also provided with an air inlet and an exhaust port, which are respectively connected to the sealed chamber, and clean air enters the sealed chamber from the air inlet, and the air can cool down the optical system and clean the optical system in the sealed chamber, and then is discharged from the exhaust port; in this scheme, the air intake of the air inlet is greater than the exhaust volume of the exhaust port, so that the sealed chamber forms a slight positive pressure relative to the external environment, so that external dust can be prevented from entering the sealed chamber, and the cleanliness of the optical system in the sealed chamber is improved. In addition, in this scheme, the exhaust port is connected to an exhaust device, and the exhaust device can extract the air in the sealed chamber, so that the air flow rate of the exhaust port can be increased, and then the air flow rate in the sealed chamber can be increased, so that the heat dissipation effect on the optical system can be further improved, and dust can be more easily extracted from the sealed chamber, thereby further improving the cleanliness of the optical system, and then improving the working reliability of the laser.
[0031] like Figure 1 In one embodiment of the utility model, the laser includes a housing 100, which is a box structure. A sealed chamber isolated from the outside is arranged inside the housing 100. The sealed chamber is used to place the optical system of the laser. The side wall of the housing 100 can be provided with a light-through hole for the laser to enter and exit. In addition, an air inlet and an exhaust port are also arranged on the housing 100. The air inlet and the exhaust port are respectively connected to the sealed chamber. The air inlet can be connected to a fan with a filtering function. The clean air generated by the fan can enter the sealed chamber through the air inlet to blow the optical system in the sealed chamber. On the one hand, the dust on the optical system can be blown away to achieve the dust removal effect. On the other hand, the optical system can also be cooled. Then the air can be discharged from the exhaust port. In this solution, the air intake of the air inlet can be greater than the exhaust volume of the exhaust port. In this way, a positive pressure environment greater than the external environment can be formed in the sealed chamber, which can prevent dust in the external environment from entering the sealed chamber, thereby further ensuring the cleanliness of the optical system. In addition, in the present embodiment, the laser also includes an exhaust device, which is connected to the exhaust port so that the air in the sealed chamber can be extracted. This can increase the flow rate at the exhaust port and the flow rate in the sealed chamber, making it easier to extract the dust in the sealed chamber, thereby ensuring the cleanliness of the sealed chamber. In addition, a higher air flow rate is also beneficial to improving the heat dissipation of the optical system and improving the working reliability of the laser.
[0032] like Figure 1In one embodiment of the utility model, the laser further includes an air inlet valve 200, which is disposed at the air inlet to control the flow rate of the air inlet. The air inlet valve 200 can be a valve structure with adjustable flow rate on the market. By adjusting the air inlet valve 200 to adjust the flow rate of the air inlet, the difference between the flow rates of the air inlet and the exhaust port can be adjusted to adjust the pressure in the sealed chamber, so that the laser can flexibly adapt to different working conditions.
[0033] like Figure 1 In one embodiment of the utility model, the laser further includes an exhaust valve 300, which is disposed at the exhaust port to control the flow rate of the exhaust port. The exhaust valve 300 may be a valve structure with adjustable flow rate on the market. By adjusting the exhaust valve 300 to adjust the flow rate of the exhaust port, the difference between the flow rates of the exhaust port and the air inlet may be adjusted, thereby adjusting the pressure in the sealed chamber, so that the laser can flexibly adapt to different working conditions.
[0034] In one embodiment of the present invention, the housing 100 comprises:
[0035] A housing having a sealed cavity with a top opening;
[0036] The cover body is buckled at the opening and seals the sealing cavity to form a sealed chamber.
[0037] Among them, the shell is a square box structure, and a sealed cavity with a top opening is set on the shell. The optical path system is installed in the sealed cavity, and then the cover body is buckled at the opening of the sealed cavity to seal and form the above-mentioned sealed chamber. For the convenience of assembly, the cover body can be fixed to the shell by screws. In this embodiment, the design of the shell and the cover body being separated facilitates the assembly of the laser.
[0038] In one embodiment of the utility model, the housing 100 further includes a sealing structure, and the housing and the cover are sealed and connected via the sealing structure. The sealing structure may be a sealing strip structure, which is disposed between the cover and the housing, and cooperates with the cover and the housing to isolate the sealed chamber from the outside, thereby improving the cleanliness of the sealed chamber.
[0039] In one embodiment of the utility model, a mounting groove is provided at the periphery of the opening of the sealing cavity, the sealing structure includes a sealing body, the sealing body is embedded in the mounting groove, and the cover body is sealed with the sealing body. The mounting groove can be provided at the periphery of the opening of the sealing cavity and extends around the opening of the sealing cavity. The sealing body can be a sealing ring structure, the sealing ring is embedded in the mounting groove and forms an interference fit with the inner wall of the mounting groove to achieve a sealed connection with the housing. In addition, the top of the sealing ring protrudes from the mounting groove. When the housing and the cover body are assembled, the lower end surface of the cover body can abut against the top of the sealing ring and form an interference fit to achieve a sealed connection, thereby achieving a sealed fit between the cover body and the housing.
[0040] In one embodiment of the utility model, the shell is an integrally formed part, which can be specifically formed by integral casting or CNC processing. This structure can improve the overall strength of the shell. In addition, the optical systems are installed on the shell, so that the optical systems are on the same reference, which facilitates the adjustment of the optical path.
[0041] like Figure 1 In one embodiment of the utility model, the laser further includes a handle 400, which is disposed on opposite sides of the housing 100. The handle 400 may be substantially C-shaped, and both ends of the handle 400 may be fixed to the housing 100 by screwing to facilitate assembly. By providing two handles 400, the laser can be easily transported.
[0042] like Figure 1 In one embodiment of the utility model, the air inlet and the exhaust port are connected to opposite sides of the sealed chamber respectively. In this way, when the airflow flows from the air inlet to the exhaust port, the airflow can fully flow through the entire area of the sealed chamber, further improving the cleanliness of the sealed chamber.
[0043] The utility model also proposes a laser device, which includes a device body and a laser arranged on the device body. The specific structure of the laser refers to the above-mentioned embodiment. Since the laser device adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.
[0044] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A laser, characterized in that: include: A housing having a sealed chamber inside, the sealed chamber being used to accommodate the optical system of the laser, the housing also having an air inlet and an exhaust port connected to the sealed chamber, the air intake volume of the air inlet being greater than the exhaust volume of the exhaust port so as to form a positive pressure environment in the sealed chamber; An exhaust device is connected to the exhaust port to extract the air in the sealed chamber.
2. The laser according to claim 1, characterized in that The laser further comprises an air inlet valve, which is arranged at the air inlet to control the flow rate of the air inlet.
3. The laser according to claim 2, characterized in that The laser further comprises an exhaust valve, which is arranged at the exhaust port to control the flow rate of the exhaust port.
4. The laser according to claim 1, characterized in that The housing comprises: A housing having a sealed cavity with a top opening; The cover body is buckled at the opening and seals the sealing cavity to form the sealing chamber.
5. The laser according to claim 4, characterized in that The housing further comprises a sealing structure, and the shell body and the cover body are sealedly connected via the sealing structure.
6. The laser according to claim 5, characterized in that The periphery of the opening of the sealing cavity is provided with a mounting groove, the sealing structure comprises a sealing body, the sealing body is embedded in the mounting groove, and the cover body is in sealing cooperation with the sealing body.
7. The laser according to claim 4, characterized in that The shell is an integrally formed part.
8. The laser according to claim 1, characterized in that The laser further comprises a handle, and the handle is arranged on two opposite sides of the housing.
9. The laser according to claim 1, characterized in that The air inlet and the air outlet are respectively connected to two opposite sides of the sealed chamber.
10. A laser device, characterized in that: A laser comprising the laser according to any one of claims 1 to 9.