CN220341669U

CN220341669U - Carbon dioxide laser tube

Info

Publication number: CN220341669U
Application number: CN202322070025.6U
Authority: CN
Inventors: 赵立泉
Original assignee: Beijing Leihai Laser Science & Technology Co ltd
Current assignee: Beijing Leihai Laser Science & Technology Co ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-01-12
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses a carbon dioxide laser tube, which comprises a discharge tube group, a water-cooling tube group, a spiral return air tube group and a gas storage tube which are sequentially distributed from inside to outside, wherein the spiral return air tube group is communicated with the discharge tube group, an output mirror and a total reflection mirror are respectively arranged on tube orifices at two ends of the gas storage tube, the discharge tube group comprises a plurality of coaxially distributed discharge tubes, and two ends of each discharge tube are respectively provided with an electrode. The utility model divides the discharge distance between the original two electrodes into two sections and more by adding the electrode in the middle of the resonant cavity of the laser tube, the two or more sections of discharge distances respectively supply power, the working voltage is reduced by multi-section discharge on the premise of ensuring no loss of the output power of the laser tube, the response speed of the laser tube is improved, the breakage rate of the laser tube is reduced, the service life of the laser tube is prolonged, and the laser tube can be used for sectionally discharging, partially outputting power and improving the laser output power curve.

Description

Carbon dioxide laser tube

Technical Field

The utility model relates to the technical field of laser tubes, in particular to a carbon dioxide laser tube.

Background

At present, a carbon dioxide laser tube shell is formed by firing high borosilicate glass and is of a three-layer sleeve structure, as shown in fig. 1, a discharge tube 01 is arranged in a central layer, a water cooling tube 02 is arranged in an intermediate layer, a gas storage tube 03 and a spiral type muffler 04 communicated with the discharge tube 01 are arranged in an outermost layer, an output mirror 05 and a total reflection mirror 06 are respectively arranged on tube orifices at two ends of the gas storage tube 03, the water cooling tube 02 is provided with a water inlet 021 and a water outlet 022, and a first electrode 07 and a second electrode 08 are respectively arranged at two ends of the discharge tube 01. The output power of the carbon dioxide laser tube is in direct proportion to the length of the laser tube, so that the laser output power of the longer laser tube is higher, but on one hand, the working voltage of the laser tube is correspondingly increased, the starting voltage is greatly increased, the glass adjacent to the high-voltage electrode is subjected to higher voltage, and the glass is broken down, so that the laser tube is damaged; on the other hand, the high-voltage line and the laser power supply which are powered can bear higher voltage, and the damage rate of the laser power supply can be improved; finally, the output power before starting is unstable, the output power after starting is rapidly increased, and the output power of laser is nonlinear.

Therefore, providing a carbon dioxide laser tube that combines power and reliability is a problem that needs to be addressed by those skilled in the art.

Disclosure of Invention

In view of the above, the utility model provides a carbon dioxide laser tube, which can reduce the working voltage, the starting voltage and the starting current of the laser tube while ensuring high power so as to optimize the power output curve of the laser tube, reduce the damage proportion of the laser tube and prolong the service lives of the laser tube and a laser power supply.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a carbon dioxide laser tube, includes from interior to outside in proper order the discharge nest of tubes, water-cooling nest of tubes, spiral return air nest of tubes and gas storage pipe, spiral return air nest of tubes with discharge nest of tubes intercommunication, be provided with output mirror and total reflection mirror on the both ends mouth of pipe of gas storage pipe respectively, the discharge nest of tubes includes a plurality of coaxial distribution's discharge tube, every the both ends of discharge tube are provided with the electrode respectively.

By adopting the scheme, the utility model has the beneficial effects that:

by adding electrodes in the middle of the resonant cavity of the laser tube, the discharge distance between the original two electrodes is divided into two sections or more, the two or more sections of discharge distances are respectively supplied with power, the working voltage is reduced by multi-section discharge on the premise of ensuring that the output power of the laser tube is not lost, the response speed of the laser tube is improved, the breakage rate of the laser tube is reduced, the service life of the laser tube is prolonged, and the laser tube can be used for sectionally discharging, partially outputting power and improving the laser output power curve.

Further, the number of the discharge tubes is two, namely a first discharge tube and a second discharge tube which are sequentially distributed at intervals from left to right, the two ends of the first discharge tube are respectively provided with a first electrode and a third electrode, and the two ends of the second discharge tube are respectively provided with a second electrode and a fourth electrode.

Further, the water-cooling tube group comprises two water-cooling tubes which are coaxially and symmetrically distributed, the two water-cooling tubes are respectively sleeved on the first discharge tube and the second discharge tube, and the water inlet and the water outlet of each water-cooling tube extend out of the gas storage tube.

Further, the spiral type air return pipe group comprises two spiral type air return pipes, the two spiral type air return pipes are respectively sleeved on the two water cooling pipes, and the two spiral type air return pipes are respectively communicated with the first discharge pipe and the second discharge pipe.

Compared with the prior art, the carbon dioxide laser tube has the advantages that the working voltage, the starting voltage and the starting current of the laser tube are reduced under the condition that the original power is not reduced by means of segmented discharge in the laser tube, the response speed of the laser tube is improved, the breakage rate of the laser tube is reduced, and the service life of the laser tube is prolonged; by means of sectional discharge, partial output power is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art carbon dioxide laser tube;

fig. 2 is a schematic structural diagram of a carbon dioxide laser tube according to the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the embodiment of the utility model discloses a carbon dioxide laser tube, which comprises a discharge tube group, a water-cooling tube group, a spiral return air tube group and a gas storage tube 8 which are sequentially distributed from inside to outside, wherein the spiral return air tube group is communicated with the discharge tube group, an output mirror 10 and a total reflection mirror 11 are respectively arranged on tube orifices at two ends of the gas storage tube 8, the discharge tube group comprises a plurality of coaxially distributed discharge tubes, two ends of each discharge tube are respectively provided with an electrode, in the embodiment, the number of the discharge tubes is two, namely a first discharge tube 1 and a second discharge tube 2 which are sequentially distributed at intervals from left to right, two ends of the first discharge tube 1 are respectively provided with a first electrode 3 and a third electrode 4, and two ends of the second discharge tube 2 are respectively provided with a second electrode 5 and a fourth electrode 6; correspondingly, the water-cooling tube group comprises two water-cooling tubes 7 which are coaxial and symmetrically distributed, the two water-cooling tubes 7 are respectively sleeved on the first discharge tube 1 and the second discharge tube 2, and the water inlet 71 and the water outlet 72 of each water-cooling tube 7 extend out of the gas storage tube 8; correspondingly, the spiral type air return pipe group comprises two spiral type air return pipes 9, the two spiral type air return pipes 9 are respectively sleeved on the two water cooling pipes 7, and the two spiral type air return pipes 9 are respectively communicated with the first discharge pipe 1 and the second discharge pipe 2. The utility model divides the discharge distance between the original two electrodes into two sections and more by adding the electrode in the middle of the resonant cavity of the laser tube, the two or more sections of discharge distances respectively supply power, the working voltage is reduced by multi-section discharge on the premise of ensuring no loss of the output power of the laser tube, the response speed of the laser tube is improved, the breakage rate of the laser tube is reduced, the service life of the laser tube is prolonged, and the laser tube can be used for sectionally discharging, partially outputting power and improving the laser output power curve.

The working principle of the utility model is as follows:

as shown in fig. 1, the distance between a first electrode 07 and a second electrode 08 of a conventional carbon dioxide laser tube is L, and the output power is W;

as shown in fig. 2, a third electrode 4 and a fourth electrode 6 are added in the middle of a laser tube, the discharge distance between the first electrode 3 and the third electrode 4 is L1, and the discharge distance between the fourth electrode 6 and the second electrode 5 is L2, l1+l2=l; the output power when the first electrode 3 and the third electrode 4 are independently supplied is W1, the output power when the fourth electrode 6 and the second electrode 5 are independently supplied is W2, and the output power when the first electrode 3, the third electrode 4, the fourth electrode 6 and the second electrode 5 are simultaneously supplied is w1+w2=w.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a carbon dioxide laser tube, includes from interior to outside in proper order the discharge nest of tubes, water-cooling nest of tubes, spiral return air nest of tubes and gas storage pipe, spiral return air nest of tubes with discharge nest of tubes intercommunication, be provided with output mirror and total reflection mirror on the both ends mouth of pipe of gas storage pipe respectively, its characterized in that, the discharge nest of tubes includes a plurality of coaxial distribution's discharge tubes, every the both ends of discharge tube are provided with the electrode respectively.

2. The carbon dioxide laser tube of claim 1, wherein the number of the discharge tubes is two, namely a first discharge tube and a second discharge tube which are sequentially distributed at intervals from left to right, two ends of the first discharge tube are respectively provided with a first electrode and a third electrode, and two ends of the second discharge tube are respectively provided with a second electrode and a fourth electrode.

3. The carbon dioxide laser tube as claimed in claim 2, wherein the water-cooled tube group comprises two water-cooled tubes which are coaxially and symmetrically distributed, the two water-cooled tubes are respectively sleeved on the first discharge tube and the second discharge tube, and a water inlet and a water outlet of each water-cooled tube extend out of the gas storage tube.

4. A carbon dioxide laser tube according to claim 3, in which the set of spiral return air tubes comprises two spiral return air tubes, which are respectively sleeved on the two water cooling tubes, and which are respectively in communication with the first discharge tube and the second discharge tube.