High-voltage breakdown-free carbon dioxide laser
By opening a hole at the high-voltage end of the discharge tube and adding a glass barrier, combined with a spiral return gas tube design, the problems of unstable gas flow and high-voltage breakdown were solved, thereby achieving power stability and improved cutting performance of the laser.
Patent Information
- Application Number
- CN202422814265.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing carbon dioxide lasers, unstable gas flow affects power stability, and the high-voltage electrode is prone to breakdown due to its proximity to the water pipe.
An opening is made at the high-voltage end of the discharge tube and a glass partition is added. Combined with the spiral return gas pipe design, the discharge tube opening and glass partition are added to increase the discharge distance from the electrode to the water pipe, ensuring gas circulation.
It effectively reduces the risk of high voltage breakdown, ensures stable laser power, and improves cutting performance.
Smart Images

Figure CN223843326U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lasers, specifically relating to a high-voltage, non-breakdown carbon dioxide laser. Background Technology
[0002] Existing carbon dioxide laser structures have return gas pipes at both ends to connect the discharge tube and the gas storage tube, allowing gas to flow between them. However, the gas flow is unstable, affecting the laser's power stability. Therefore, this invention replaces one end of the return gas pipe with an opening in the discharge tube. However, with the discharge tube open, the high-voltage electrode is closer to the water pipe, posing a risk of the high voltage puncturing the glass wall of the water pipe. Utility Model Content
[0003] Purpose of the utility model: In order to overcome the shortcomings of the existing technology, this utility model provides a high-voltage, non-breakdown carbon dioxide laser.
[0004] Technical solution: A high-voltage non-breakdown carbon dioxide laser, comprising a gas storage tube, wherein a cold water pipe is fixedly installed inside the gas storage tube, and a discharge tube is sleeved inside the cold water pipe;
[0005] One end of the discharge tube has a discharge tube opening, which is directly connected to the gas storage tube body. The discharge tube opening is located at the high-voltage end of the gas storage tube. A glass partition is fixedly covered on the discharge tube opening. The glass partition is used to effectively increase the discharge distance from the electrode to the water pipe without hindering the air flow, thereby reducing the possibility of high-voltage breakdown.
[0006] The other end of the discharge tube is fixedly connected to a return gas pipe, which is spiral-shaped and wrapped around the cold water pipe. Gas circulates between the discharge tube and the gas storage pipe through the opening of the discharge tube and the spiral-shaped return gas pipe.
[0007] As an optimization: the discharge tube has cavities at both ends, and a first electrode and a second electrode are respectively provided in the cavities.
[0008] As an optimization: both ends of the cold water pipe are fixedly connected to water pipes.
[0009] As an optimization: the water pipe is used to ensure that the coolant can flow evenly through all parts of the laser.
[0010] Beneficial effects: In order to increase gas exchange, the carbon dioxide laser of this utility model removes the return gas pipe at the high-pressure end and adds a discharge tube opening and a glass partition. Without hindering the gas flow, it can effectively lengthen the discharge distance from the electrode to the water pipe and reduce the possibility of high-pressure breakdown. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0012] Example
[0013] like Figure 1 As shown, a high-voltage, non-breakdown carbon dioxide laser includes a gas storage tube 1, a cold water pipe 2 fixedly installed inside the gas storage tube 1, and a discharge tube 3 sleeved inside the cold water pipe 2. The discharge tube 3 has cavities at its left and right ends, and a first electrode 4 and a second electrode 5 are respectively installed in the cavities.
[0014] The discharge tube 3 has a discharge tube opening 6 at one end, which is directly connected to the gas storage tube body 1. This allows for sufficient gas exchange during high-speed laser cutting, thus ensuring the power stability of the carbon dioxide laser. The discharge tube opening 6 is located at the high-voltage end of the gas storage tube 1, and a glass partition 9 is fixedly covered on the discharge tube opening 6. The glass partition 9 effectively extends the discharge distance from the electrode to the water pipe without hindering the airflow, reducing the possibility of high-voltage breakdown.
[0015] The other end of the discharge tube 3 is fixedly connected to a return gas pipe 7. The return gas pipe 7 is spiral-shaped and wrapped around the cold water pipe 2. Through the discharge tube opening 6 and the spiral return gas pipe 7, the gas circulates between the discharge tube 3 and the gas storage pipe 1, which can provide sufficient gas exchange during high-speed laser cutting and ensure the stability of the laser power.
[0016] Both ends of the cooling water pipe 2 are fixedly connected to water pipes 8. The water pipes 8 are used to ensure that the coolant can flow evenly through all parts of the laser, thereby effectively dissipating heat and maintaining the normal operating temperature through an efficient cooling system.
[0017] The foregoing description clearly and completely illustrates the technical solutions in the embodiments of this utility model, enabling those skilled in the art to better understand the advantages and features of this utility model, thereby providing a clearer definition of the scope of protection of this utility model. The embodiments described in this utility model are merely some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
Claims
1. A high-voltage, non-breakdown carbon dioxide laser, characterized in that: It includes a gas storage pipe (1), a cold water pipe (2) is fixedly installed inside the gas storage pipe (1), and a discharge pipe (3) is sleeved inside the cold water pipe (2); The discharge tube (3) has a discharge tube opening (6) at one end, and the discharge tube opening (6) is directly connected to the gas storage tube (1). The discharge tube opening (6) is located at the high-voltage end of the gas storage tube (1). A glass partition (9) is fixedly covered on the discharge tube opening (6). The glass partition (9) is used to effectively lengthen the discharge distance from the electrode to the water pipe without hindering the air flow, thereby reducing the possibility of high-voltage breakdown. The other end of the discharge tube (3) is fixedly connected to the return gas pipe (7). The return gas pipe (7) is spiral and is wrapped around the outside of the cold water pipe (2). The gas circulates between the discharge tube (3) and the gas storage pipe (1) through the discharge tube opening (6) and the spiral return gas pipe (7).
2. The high-voltage, non-breakdown carbon dioxide laser according to claim 1, characterized in that: The discharge tube (3) has cavities at both ends, and a first electrode (4) and a second electrode (5) are respectively provided in the cavities.
3. The high-voltage, non-breakdown carbon dioxide laser according to claim 1, characterized in that: Both ends of the cold water pipe (2) are fixedly connected to water pipes (8).
4. The high-voltage, non-breakdown carbon dioxide laser according to claim 3, characterized in that: The water pipe (8) is used to ensure that the coolant can flow evenly through all parts of the laser.