CN213602180U - Temperature-controllable laser - Google Patents
Temperature-controllable laser Download PDFInfo
- Publication number
- CN213602180U CN213602180U CN202022961755.1U CN202022961755U CN213602180U CN 213602180 U CN213602180 U CN 213602180U CN 202022961755 U CN202022961755 U CN 202022961755U CN 213602180 U CN213602180 U CN 213602180U
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- temperature
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- laser diode
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- 238000005057 refrigeration Methods 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 18
- 239000004065 semiconductor Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Semiconductor Lasers (AREA)
Abstract
The utility model discloses a temperature controllable laser, which comprises a shell, a lens group, a refrigerating sheet, a laser diode, a temperature sensor and a controller, wherein the lens group and the refrigerating sheet are arranged inside the shell; the inside of the shell is divided into a first cavity and a second cavity by the refrigerating sheet, and a lens group is installed in the first cavity; the refrigeration piece is fixed with the heat conduction mount pad towards one side of cavity two, and the heat conduction mount pad is used for fixed laser diode and temperature sensor, is equipped with the through-hole on the refrigeration piece for the emergent laser that supplies laser diode wears out, and refrigeration piece, laser diode and temperature sensor all are connected with the controller electricity, and this equipment utilizes refrigeration piece, temperature sensor, the cooperation of controller three, can regulate and control the peripheral temperature of laser diode in real time, the stability of guarantee laser diode work.
Description
Technical Field
The utility model relates to a laser instrument design field, concretely relates to controllable laser instrument of temperature.
Background
The laser is a common device in modern measurement, the stability of the working state of the laser is related to the accuracy of the measurement result, and in some severe use scenes, such as rail transit, military equipment and the like, the working environment of the laser is in the working temperature range of-40-70 ℃. However, the temperature characteristics of the semiconductor laser show that the optical power of the semiconductor laser decreases with the increase of the temperature and increases with the decrease of the temperature, and the stability of the laser is not good under the use condition with large external temperature change. In order to ensure the stability of the optical power of the laser, the temperature in the laser needs to be controllable, and the conventional temperature control device usually comprises a radiator, a fan and the like, but the conventional temperature control device has a large volume and is inconvenient to install in the laser with small volume, compact structure and tightness.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a controllable laser instrument of temperature, this equipment utilize refrigeration piece, temperature sensor, the cooperation of controller three, can regulate and control laser diode peripheral temperature in real time, make it maintain preset temperature, and then guarantee laser diode's outgoing laser does not receive temperature interference, keeps its stability, and simultaneously, equipment integrates the degree height, occupation space is little, is fit for assembling in miniaturized equipment, reduces the cost.
Therefore, the technical scheme of the utility model is as follows:
a temperature-controllable laser comprises a shell, a lens group, a refrigerating piece, a laser diode, a temperature sensor and a controller, wherein the lens group and the refrigerating piece are arranged inside the shell;
the shell is a cylindrical shell, the refrigerating sheet is embedded in the cylinder, the inner part of the shell is divided into a first cavity and a second cavity, and a lens group is arranged in the first cavity; a heat conduction mounting seat is fixed on one side, facing the cavity II, of the refrigerating sheet, and the heat conduction mounting seat is used for fixing the laser diode and the temperature sensor;
the refrigerating sheet is provided with a through hole for the outgoing laser of the laser diode to penetrate out, and the outgoing laser is projected to the outside through the lens group;
the refrigerating sheet, the laser diode and the temperature sensor are all electrically connected with the controller; the temperature sensor is used for detecting the ambient temperature of the laser diode and feeding back the ambient temperature to the controller, and the controller adjusts the refrigeration sheet in real time according to the preset temperature to absorb or dissipate heat, so that the current temperature is adjusted, and the temperature of the laser diode during working is controllable.
In order to prevent the temperature in the first cavity from influencing the second cavity; the refrigerator shell further comprises a heat insulation connecting seat which is sleeved on the outer side of the refrigerating sheet and divides the shell to form a front-end shell and a rear-end shell, a cavity I is formed inside the front-end shell, and a cavity II is formed inside the rear-end shell.
Preferably, the heat insulation connecting seat and the inner surface or the outer surface of the rear end shell are paved with a heat insulation layer.
Preferably, the heat insulation layer is a nylon heat insulation layer or a foam sponge heat insulation layer.
Furthermore, a lens fixing structure is fixed in the first cavity, and the lens group is installed on the lens fixing structure and comprises one or more convex lenses.
Furthermore, the refrigerating piece is a semiconductor refrigerating piece.
Further, the temperature sensor is a thermistor or a digital temperature sensor.
Further, the heat conduction mounting base is a red copper heat conduction mounting base or an aluminum heat conduction mounting base.
Further, in order to realize equipment integration, the controller is installed inside two cavities.
This equipment utilizes refrigeration piece, temperature sensor, the cooperation of controller three, can regulate and control laser diode ambient temperature in real time, makes it maintain predetermined temperature, and then ensures laser diode's emergent laser and does not receive temperature interference, keeps its stability, simultaneously, adopts thermal-insulated connecting seat, refrigeration piece in this scheme with front end lens place space and rear end laser diode place space separation, weakens the influence of the temperature variation in cavity one to cavity two. The lens group, the laser diode, the semiconductor refrigerating sheet and the controller are combined into a whole, the device integration degree is high, the occupied space is small, the device is suitable for being assembled in miniaturized equipment, and the cost is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of a temperature-controllable laser in an embodiment;
FIG. 2 is an exploded view of a temperature-controlled laser in accordance with an embodiment;
fig. 3 is a schematic perspective cross-sectional view of a temperature-controllable laser according to an embodiment.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
A temperature-controllable laser device is shown in figures 1-3 and comprises a shell, a lens group 1, a refrigerating plate 2, a laser diode 3, a temperature sensor 4 and a controller 5, wherein the lens group 1, the refrigerating plate 2, the laser diode 3 and the temperature sensor 4 are installed inside the shell;
the shell is a cylindrical shell, the refrigerating sheet 2 is embedded in the cylinder, the inner part of the shell is divided into a first cavity and a second cavity, and the first cavity is internally provided with the lens group 1; a heat conduction mounting seat 6 is fixed on one side, facing the cavity II, of the refrigerating sheet 2, and the heat conduction mounting seat 6 is used for fixing the laser diode 3 and the temperature sensor 4;
the refrigerating plate 2 is provided with a through hole for the outgoing laser of the laser diode 3 to penetrate out, and the outgoing laser is projected to the outside through the lens group 1;
the refrigerating plate 2, the laser diode 3 and the temperature sensor 4 are all electrically connected with the controller 5; the temperature sensor 4 is used for detecting the ambient temperature of the laser diode 3 and feeding back the ambient temperature to the controller, and the controller adjusts the refrigeration sheet in real time according to the preset temperature to absorb or dissipate heat, so that the current temperature is adjusted, and the temperature of the laser diode 3 during working is controllable.
In order to prevent the temperature in the first cavity from influencing the second cavity; in this embodiment, the refrigerator further includes a heat insulation connecting seat 7, the heat insulation connecting seat 7 is sleeved on the outer side of the refrigerating sheet 2, and divides the casing into a front casing 8 and a rear casing 9, a first cavity is formed inside the front casing 8, and a second cavity is formed inside the rear casing 9.
As a preferred embodiment of the present invention, a thermal insulation layer is laid inside or outside the thermal insulation connecting seat 7 and the rear end housing 9; the heat insulation layer is a nylon heat insulation layer or a foam sponge heat insulation layer; the heat conduction mounting seat 6 is a red copper heat conduction mounting seat or an aluminum heat conduction mounting seat.
A lens fixing structure 10 is fixed in the first cavity, and a lens group is installed on the lens fixing structure 10 and comprises one or more convex lenses. Optionally, the temperature sensor is a thermistor or a digital temperature sensor.
In this embodiment, the lens group includes two convex lenses, the two lens fixing structures 10 respectively fix the two convex lenses, the refrigeration sheet is a semiconductor refrigeration sheet, and the temperature sensor is a thermistor; in order to realize equipment integration, the controller is arranged in the cavity II and comprises a plurality of control panels which are respectively fixed on the bracket 11.
In order to facilitate the disassembly, the equipment is also provided with a detachable rear cover, and a wire outlet is reserved on the rear cover and is used for leading out the signal wire 12 of the component; during installation, all the components are installed from the tail end of the device forward in sequence, the operation steps are simple and convenient, and subsequent maintenance is easy.
When in use, the temperature sensor is attached near the laser diode through the open pore of the heat conduction mounting seat to acquire the temperature near the laser diode in real time and transmit the temperature data to the controller,
the micro control unit of the controller adopts a single chip microcomputer, the temperature control unit (a driving unit of the semiconductor refrigeration piece) adopts a MAX1968 chip, the single chip microcomputer reads the temperature near the laser diode in real time through a temperature sensor and analyzes the temperature, when the temperature is not in a set range, the single chip microcomputer outputs a voltage to a control end of the MAX1968 chip through a digital-analog conversion port, the switching of a cold end and a hot end of the semiconductor refrigeration piece is controlled by changing the current direction, and the heat absorption or heat dissipation degree of the semiconductor refrigeration piece is controlled by changing the current. Thereby ensuring that the ambient temperature of the laser diode is kept at the set temperature.
Claims (9)
1. A temperature-controllable laser, characterized by: the refrigerating device comprises a shell, a lens group (1), a refrigerating sheet (2), a laser diode (3), a temperature sensor (4) and a controller (5) which is arranged inside or outside the shell, wherein the lens group is arranged inside the shell;
the shell is a cylindrical shell, the refrigerating sheet (2) is embedded in the cylinder, the inner part of the shell is divided into a first cavity and a second cavity, and the first cavity is internally provided with a lens group (1); a heat conduction mounting seat (6) is fixed on one side, facing the cavity II, of the refrigerating sheet (2), and the heat conduction mounting seat (6) is used for fixing the laser diode (3) and the temperature sensor (4);
the refrigerating sheet (2) is provided with a through hole for the outgoing laser of the laser diode (3) to penetrate out, and the outgoing laser is projected to the outside through the lens group (1);
the refrigerating sheet (2), the laser diode (3) and the temperature sensor (4) are electrically connected with the controller (5); the temperature sensor (4) is used for detecting the peripheral temperature of the laser diode (3) and feeding back the peripheral temperature to the controller, the controller adjusts the refrigeration sheet in real time according to the preset temperature to absorb or dissipate heat, and the current temperature is adjusted, so that the temperature of the laser diode (3) during working is controllable.
2. The temperature-controllable laser of claim 1, wherein: still include thermal-insulated connecting seat (7), thermal-insulated connecting seat (7) cup joint in refrigeration piece (2) outside, and will the casing is cut apart, forms front end casing (8) and rear end casing (9), inside cavity one that forms of front end casing (8), inside cavity two that forms of rear end casing (9).
3. The temperature-controllable laser of claim 2, wherein: and heat insulation layers are paved on the inner surfaces or the outer surfaces of the heat insulation connecting seat (7) and the rear end shell (9).
4. A temperature controllable laser according to claim 3, wherein: the heat insulation layer is a nylon heat insulation layer or a foam sponge heat insulation layer.
5. The temperature-controllable laser of claim 1, wherein: a lens fixing structure (10) is fixed in the first cavity, and the lens group is installed on the lens fixing structure (10) and comprises one or more convex lenses.
6. The temperature-controllable laser of claim 1, wherein: the refrigerating piece is a semiconductor refrigerating piece.
7. The temperature-controllable laser of claim 1, wherein: the temperature sensor is a thermistor or a digital temperature sensor.
8. The temperature-controllable laser of claim 1, wherein: the heat conduction mounting seat (6) is a red copper heat conduction mounting seat or an aluminum heat conduction mounting seat.
9. The temperature-controllable laser of claim 1, wherein: the controller is installed in the second cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961755.1U CN213602180U (en) | 2020-12-10 | 2020-12-10 | Temperature-controllable laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022961755.1U CN213602180U (en) | 2020-12-10 | 2020-12-10 | Temperature-controllable laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213602180U true CN213602180U (en) | 2021-07-02 |
Family
ID=76598491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022961755.1U Active CN213602180U (en) | 2020-12-10 | 2020-12-10 | Temperature-controllable laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213602180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815091A (en) * | 2022-04-27 | 2022-07-29 | 湖南光智通信技术有限公司 | Light emitter capable of quickly radiating |
-
2020
- 2020-12-10 CN CN202022961755.1U patent/CN213602180U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815091A (en) * | 2022-04-27 | 2022-07-29 | 湖南光智通信技术有限公司 | Light emitter capable of quickly radiating |
| CN114815091B (en) * | 2022-04-27 | 2023-11-03 | 湖南光智通信技术有限公司 | Light emitter capable of rapidly radiating |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Room 495, building 3, 1197 Bin'an Road, Binjiang District, Hangzhou City, Zhejiang Province 310051 Patentee after: Yi Si Si (Hangzhou) Technology Co.,Ltd. Address before: Room 495, building 3, 1197 Bin'an Road, Binjiang District, Hangzhou City, Zhejiang Province 310051 Patentee before: ISVISION (HANGZHOU) TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |