CN201110909Y - Absorbent body in laser light-valve shutter component - Google Patents
Absorbent body in laser light-valve shutter component Download PDFInfo
- Publication number
- CN201110909Y CN201110909Y CNU2007201716546U CN200720171654U CN201110909Y CN 201110909 Y CN201110909 Y CN 201110909Y CN U2007201716546 U CNU2007201716546 U CN U2007201716546U CN 200720171654 U CN200720171654 U CN 200720171654U CN 201110909 Y CN201110909 Y CN 201110909Y
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- CN
- China
- Prior art keywords
- absorber
- incidence surface
- laser
- optical gate
- conical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an absorber in a laser shutter component, relating to the technical field of high-power lasers. The absorber comprises a hollow cylindrical absorber body (1) and a cooling bin (2) arranged in the absorber body; the cooling bin (2) is provided with a water inlet pipe (201) and a water outlet pipe (202); the absorber also comprises a conical incidence surface (4); the central axis of the absorber is superposed with the central axis of the absorber body (1); the apex of the absorber is suspendedly arranged far away from the inlet of the absorber body (1); the bottom edge of the absorber is connected on the inner wall of the absorber body (1), near the inlet of the absorber body (1); the space encircled by the conical outer surface of the incidence surface (4) and the inner wall of the absorber body (1) forms the cooling bin (2). The absorber of the utility model can fully absorb the laser to prevent over-high temperature of the incidence surface of the absorber.
Description
[technical field]
The utility model relates to the high power laser technical field, relates in particular to the absorber that in the laser optical gate assembly laser is absorbed.
[background technology]
The absorber of laser optical gate assembly is suitable for high power laser in the course of the work owing to some reasons will stop a moment, and don't think frequent switching on and shutting down, start optical gate and absorb the laser that emits, avoid having an accident, absorber wherein is mainly used in the absorption to laser, prevent distributing of laser in the course of the work, cause unnecessary damages.Fig. 1 is the cross-sectional view of absorber in the prior art, the absorber body is a hollow cylinder (1), it is conical that incidence surface (3) is, the circular cone bottom edge is connected on the hollow cylinder inwall, conical tip is near hollow cylinder inlet (laser entrance port, the laser incident direction is shown in arrow among the figure), and be positioned on the axis of hollow cylinder, in the cone is hollow parts, the part that this hollow parts is communicated with the hollow cylinder inwall is cooling storehouse (2), the cooling storehouse is provided with water inlet pipe (201) and rising pipe (202), and this cooling storehouse is used to cool off conical incidence surface (3).In existing high power laser optical gate assembly, in laser works after a period of time, incidence surface in the absorber is because be provided with towards incident laser " projection ", make its incidence surface meet incident laser stiffly, so often easily by laser breakdown, and the set-up mode of incidence surface is for a long time through the irradiation of Stimulated Light, temperature rises very fast, and the cooling velocity in cooling storehouse is lower than temperature rise speed, can not in time effectively lower the temperature, cause long high temperature to weaken the usability of optical gate, shortened the serviceable life of optical gate greatly.
[utility model content]
The technical problems to be solved in the utility model provides the absorber in a kind of laser optical gate assembly, can fully absorb laser, prevents that the temperature of absorber incidence surface is too high.
The technical scheme that the utility model adopted is:
Absorber in a kind of laser optical gate assembly, comprise open column shape absorber body and be arranged on the intrinsic cooling storehouse of absorber with water inlet pipe and rising pipe, also comprise conical incidence surface, its central shaft overlaps with the central shaft of described absorber body, its summit is away from the unsettled setting that enters the mouth of absorber body, its bottom edge is connected on the absorber inner body wall near absorber body inlet, and the space that the conical external surface of described incidence surface and described absorber inner body wall are surrounded forms described cooling storehouse.
Described absorber body is cylindric.
The drift angle angle of described conical incidence surface be 30 spend to 60 the degree.
The drift angle angle of described conical incidence surface is 45 degree.
The beneficial effects of the utility model are:
The utility model is because adopt the incidence surface of depression to meet incident laser, reduce the corrosion of incident light to incidence surface, both can the laser that produce reasonably be absorbed, can better dispel the heat fully to the optical gate assembly again, increase the volume in cooling storehouse, prevent that the optical gate assembly temperature is too high, the temperature of absorber incidence surface is in time cooled off, effectively guarantee the performance of optical gate, also prolonged the serviceable life of optical gate.
[description of drawings]
The utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the structural representation of absorber in the prior art.
Fig. 2 is the structural representation of the utility model absorber.
Fig. 3 is the equivalent schematic of cooling storage capacity in the prior art.
Fig. 4 is the equivalent schematic of cooling storage capacity in the utility model.
[embodiment]
As shown in Figure 2, absorber of the present utility model comprises hollow cylindrical absorber body 1, be arranged on the cooling storehouse 2 in the absorber body 1 with water inlet pipe 201 and rising pipe 202, and conical incidence surface 4, the central shaft of conical incidence surface 4 overlaps with the central shaft of described absorber body 1, its summit is away from the unsettled setting of absorber body 1 inlet, its bottom edge is connected on absorber body 1 inwall near absorber body 1 inlet, and the space that the conical external surface of described incidence surface 4 and described absorber body 1 inwall surround forms described cooling storehouse 2.
Wherein, the drift angle angle of conical incidence surface be 45 the degree, can reasonably receive like this laser, the scope of this angle can be 30 spend to 60 the degree can satisfy requirement of the present utility model equally.
After the laser works, when making Optic gate, incident laser is radiated on the conical inner surface of incidence surface 4, reflect repeatedly and absorb through this inside surface, finally the laser of incident is sponged fully, prevent distributing of laser in the course of the work, thereby realized the function of optical gate, this inside surface is owing to meet laser with " depression " form, therefore its surface temperature rise speed is low with respect to the surface temperature rise speed of " projection " setting of prior art, prevented that the optical gate assembly temperature is too high, effectively guaranteed the performance of optical gate, also prolonged the serviceable life of optical gate.
Below the comparison of volume is carried out in the cooling storehouse of cooling storehouse in the utility model and prior art:
As shown in Figure 3 and Figure 4, the volume v1=A+B in cooling storehouse in the prior art, and the volume v2=A+C in cooling storehouse in the utility model, under absorber and the equal-sized situation of incidence surface, C=s*h-B=s*h-s*h*1/3=s*h*2/3＞s*h*1/3=B, wherein s is the floorage of circular cone, h is the height of circular cone, obvious v2＞v1, promptly the volume in the cooling storehouse in the utility model is greater than the volume in the cooling storehouse of prior art.
Because the conical inner surface of incidence surface is with the setting of " depression " form, so just make the volume in cooling storehouse in the utility model want big with respect to prior art, promptly increased the volume in cooling storehouse, the cooling storehouse can be cooled off timely and effectively to the temperature of absorber incidence surface.
In sum, the utility model can fully absorb laser, prevents that the temperature of absorber incidence surface is too high, effectively guarantees the performance of optical gate, has also prolonged the serviceable life of optical gate.
Claims (4)
1. the absorber in the laser optical gate assembly, comprise open column shape absorber body and be arranged on the intrinsic cooling storehouse of absorber with water inlet pipe and rising pipe, it is characterized in that: also comprise conical incidence surface, its central shaft overlaps with the central shaft of described absorber body, its summit is away from the unsettled setting that enters the mouth of absorber body, its bottom edge is connected on the absorber inner body wall near absorber body inlet, and the space that the conical external surface of described incidence surface and described absorber inner body wall are surrounded forms described cooling storehouse.
2. the absorber in a kind of laser optical gate assembly according to claim 1 is characterized in that: described absorber body is cylindric.
3. according to the absorber in the arbitrary described a kind of laser optical gate assembly of claim 1 to 2, it is characterized in that: the drift angle angle of described conical incidence surface be 30 spend to 60 the degree.
4. the absorber in a kind of laser optical gate assembly according to claim 3 is characterized in that: the drift angle angle of described conical incidence surface is 45 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201716546U CN201110909Y (en) | 2007-09-13 | 2007-09-13 | Absorbent body in laser light-valve shutter component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201716546U CN201110909Y (en) | 2007-09-13 | 2007-09-13 | Absorbent body in laser light-valve shutter component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110909Y true CN201110909Y (en) | 2008-09-03 |
Family
ID=39895446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201716546U Expired - Lifetime CN201110909Y (en) | 2007-09-13 | 2007-09-13 | Absorbent body in laser light-valve shutter component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110909Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655408A (en) * | 2015-01-29 | 2015-05-27 | 大族激光科技产业集团股份有限公司 | Laser power monitoring device |
| CN108279449A (en) * | 2017-01-05 | 2018-07-13 | 罗伯特·博世有限公司 | High power beam trap |
-
2007
- 2007-09-13 CN CNU2007201716546U patent/CN201110909Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655408A (en) * | 2015-01-29 | 2015-05-27 | 大族激光科技产业集团股份有限公司 | Laser power monitoring device |
| CN108279449A (en) * | 2017-01-05 | 2018-07-13 | 罗伯特·博世有限公司 | High power beam trap |
| CN108279449B (en) * | 2017-01-05 | 2021-11-26 | 罗伯特·博世有限公司 | High power beam trap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080903 |