CN102544993A - Laser transmitter - Google Patents
Laser transmitter Download PDFInfo
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- CN102544993A CN102544993A CN2012100409404A CN201210040940A CN102544993A CN 102544993 A CN102544993 A CN 102544993A CN 2012100409404 A CN2012100409404 A CN 2012100409404A CN 201210040940 A CN201210040940 A CN 201210040940A CN 102544993 A CN102544993 A CN 102544993A
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- laser
- emitting module
- laser transmitter
- attemperator
- laser emitting
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Abstract
The invention discloses a laser transmitter, and relates to laser transmitting equipment. The laser transmitter comprises a shell and a laser transmitting module, wherein the laser transmitting module is arranged in the shell. The laser transmitter is characterized by also comprising a heat preservation device which is made from a latent heat phase-changing material and arranged in the shell. Compared with the prior art, the laser transmitter has the advantages that: because of the heat preservation device which is made from the latent heat phase-changing material, the laser transmitting module can be kept in the optimal working temperature range as much as possible, and the heat preservation effect is good.
Description
Technical field
The present invention relates to a kind of laser transmitting set, be used for outdoor laser transmitter more specifically to a kind of.
Background technology
Existing laser transmitter generally includes shell, laser emitting module and radiator.
Electronic equipment generally all has the heating phenomenon, and working temperature generally is higher than normal temperature, is about 40～50 degree; Although laser emitting module is the power of milliwatt level, if there is not heat dissipation equipment to lower the temperature, when ambient temperature was 25 degree, transmitter inside generally also can be raised to more than 40 degree.
Be installed in indoor indoor type laser transmitter and can rely on artificial adjustment indoor temperature, but it is just impossible to be mounted in outdoor outdoor version laser transmitter.Sometimes be installed in outdoor being exposed to the sun in the sun, be installed in outdoor in ice and snow, burying sometimes.
And laser emitting module requires to work in optimum operating temperature range (optimum operating temperature range is generally 24～25 degree) usually, is higher or lower than this optimum operating temperature range and all can causes bad influence to laser emitting module.Especially the maximum temperature that is higher than this optimum operating temperature range can cause that power descends, and then influence the stability of a system and reliability; More serious is to cause the laser transmitter wavelength shift, can cause emission and accept dislocation or off resonance (out of touch); At high temperature work for a long time, change repeatedly down, will quicken laser diodes age speed, and shorten its life-span and service time in operating temperature.And the minimum temperature that is lower than this optimum operating temperature range also can cause bad influence to laser emitting module: temperature reduces; Power strengthens, and can cause modulation distortion, the communication distortion; Can cause the laser transmitter wavelength shift too, cause emission and accept dislocation or off resonance (out of touch).
The radiator of existing laser transmitter can't be implemented forced convertion outdoor; Because laser transmitter is the rainproof thunder resisting equipment that seals fully, the mode that heat is transmitted can only be the nature conduction-type, relies on fin, shell; Conduct heat from inside to outside, and do not have the heat accumulation function.For guaranteeing heat radiation, its shell four sides all is furnished with the heat radiation type structure usually, with the contact area of increasing with outside air; And also can use at cold district in order to guarantee, must artificially strengthen the circuit power consumption again to shed to increase heat, guarantee the machine operate as normal.Like this, just make the producer be absorbed in an implacable vicious circle.
Summary of the invention
Technical problem to be solved by this invention provides a kind of laser transmitter, and this laser transmitter can be as far as possible remains on optimum operating temperature range with the temperature of laser emitting module.The technical scheme that adopts is following:
A kind of laser transmitter comprises shell, laser emitting module, and laser emitting module is installed in the enclosure, it is characterized in that: said laser transmitter also comprises the attemperator of being processed by the latent heat phase-change material, and attemperator is installed in the enclosure.Absorb or release heat through attemperator, come to keep as far as possible laser emitting module to be in proper temperature range, avoid the too high or too low for temperature of laser emitting module.
A kind of scheme leaves the gap between said attemperator and the laser emitting module.That is to say between attemperator and the laser emitting module and directly do not contact.
More excellent scheme, said attemperator contacts with laser emitting module.
If because laser emitting module does not directly contact with attemperator, carry out heat transmission indirectly through air and other parts, transmission speed is slower, and laser emitting module might temperature exceed optimum operating temperature range.Therefore, attemperator is directly contacted with laser emitting module, can give full play to the effect of attemperator, especially when the gap of ambient temperature and optimum operating temperature range is bigger, preferably adopt this structure.
A kind of preferable scheme, said laser transmitter also comprises radiator, radiator is installed on the shell lateral surface.
Temperature is higher than optimum operating temperature range in the enclosure, and temperature when being higher than ambient temperature in the shell, can utilize that radiator is auxiliary to dispel the heat.If but extraneous temperature is higher than optimum operating temperature range, also high than temperature in the shell, then radiator can't reach the purpose of heat radiation.
If the environment of laser transmitter work is in the place of cold (being in the environment of low temperature like arctic etc. all the time) then more excellent scheme, said laser transmitter also comprises heater, and heater is installed in the enclosure.
A kind of scheme leaves the gap between said heater and the attemperator, leaves the gap between heater and the laser emitting module.
More excellent scheme, said heater contacts with attemperator, leaves the gap between heater and the laser emitting module.Heater had better not directly contact with laser emitting module, obtains too much heat to prevent laser emitting module, causes temperature too high.
If the environment of laser transmitter work (is in the environment of high temperature) then more excellent scheme all the time in awfully hot place like the somewhere, equator, said laser transmitter also comprises refrigerating plant, and refrigerating plant is installed in the enclosure.
A kind of scheme leaves the gap between said refrigerating plant and the attemperator, leaves the gap between refrigerating plant and the laser emitting module.
More excellent scheme, said refrigerating plant contacts with attemperator, leaves the gap between refrigerating plant and the laser emitting module.Refrigerating plant had better not directly contact with laser emitting module, with the heat that prevents that the laser emitting module transmission is too much, causes temperature low excessively.
More excellent scheme, the phase transition temperature scope of the latent heat phase-change material of said attemperator are 24～25 degree.Usually like this, can be better the temperature of laser emitting module be remained on optimum operating temperature range.But; Need confirm phase transition temperature according to the situation of reality; Guaranteeing the heat insulation effect of its phase transition temperature to laser emitting module, so phase transition temperature might be in the scope of 24～25 degree, and above-mentioned phase transition temperature scope is a kind of preferable selection scheme under the common various environment for use.
The present invention's beneficial effect against existing technologies is, owing to be provided with the attemperator of being processed by the latent heat phase-change material, therefore can as much as possible laser emitting module be remained on optimum operating temperature range, and heat preservation effect is good.
Description of drawings
Fig. 1 is the sectional structure sketch map of the embodiment of the invention 1;
Fig. 2 is the sectional structure sketch map of the embodiment of the invention 2;
Fig. 3 is the sectional structure sketch map of the embodiment of the invention 3;
Fig. 4 is the sectional structure sketch map of the embodiment of the invention 4;
Fig. 5 is the sectional structure sketch map of the embodiment of the invention 5;
Fig. 6 is the sectional structure sketch map of the embodiment of the invention 6;
Fig. 7 is the sectional structure sketch map of the embodiment of the invention 7.
Embodiment
As shown in Figure 1, the laser transmitter in the present embodiment comprises shell 1, laser emitting module 2, by the attemperator 3 that the latent heat phase-change material is processed, and laser emitting module 2, attemperator 3 are installed in respectively in the shell 1.Absorb or release heat through attemperator 3, come to keep as far as possible laser emitting module 2 to be in proper temperature range, avoid the too high or too low for temperature of laser emitting module 2.
Leave the gap between said attemperator 3 and the laser emitting module 2.
The phase transition temperature of the latent heat phase-change material of said attemperator is 23 degree.This is because because the heat transmission between attemperator 3 and the laser emitting module 2 is slower, is provided with the phase transition temperature of latent heat phase-change material more lower slightly, can help to reduce the temperature of laser emitting module 2.
The laser transmitter of this structure, heat-insulating property increases, and it is not very high being adapted at temperature, and typical temperature changes little place use.Such as long-term temperature all about 25 degree, and the less place of the temperature difference usually.
As shown in Figure 2, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said attemperator 2 contacts with laser emitting module 3.
The phase transition temperature of the latent heat phase-change material of said attemperator is 24 degree.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 1, and it is not very high being adapted at temperature equally, and typical temperature changes little place use.
As shown in Figure 3, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said attemperator 2 contacts with laser emitting module 3.
Said laser transmitter also comprises radiator 4, and radiator 4 is installed on shell 1 lateral surface.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 1, and it is not very high being adapted at temperature equally, and typical temperature changes little place use.
As shown in Figure 4, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said laser transmitter also comprises heater 5, and heater 5 is installed in the shell 1.
Leave the gap between said heater 5 and the attemperator 3, leave the gap between heater 5 and the laser emitting module 2.
The phase transition temperature of the latent heat phase-change material of said attemperator is 25 degree.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 1, is adapted at the place of temperature lower (such as be in below 0 degree throughout the year).
As shown in Figure 5, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said attemperator 2 contacts with laser emitting module 3.
Said laser transmitter also comprises heater 5, and heater 5 is installed in the shell 1.
Said heater 5 contacts with attemperator 3, leaves the gap between heater 5 and the laser emitting module 2.
The phase transition temperature of the latent heat phase-change material of said attemperator is 24.5 degree.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 4, is adapted at the place of temperature lower (such as be in below 0 degree throughout the year).
As shown in Figure 6, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said laser transmitter also comprises refrigerating plant 6, and refrigerating plant 6 is installed in the enclosure.
Leave the gap between said refrigerating plant 6 and the attemperator 3, leave the gap between refrigerating plant 6 and the laser emitting module 3.
The phase transition temperature of the latent heat phase-change material of said attemperator is 24.1 degree.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 1, is adapted at the place of temperature higher (such as be in more than 30 degree throughout the year).
Embodiment 7
As shown in Figure 7, the difference of laser transmitter in the present embodiment and embodiment 1 is:
Said laser transmitter also comprises refrigerating plant 6, and refrigerating plant 6 is installed in the enclosure.
Said attemperator 2 contacts with laser emitting module 3.
Said refrigerating plant 6 contacts with attemperator 3, leaves the gap between refrigerating plant 6 and the laser emitting module 3.
The phase transition temperature of the latent heat phase-change material of said attemperator is 24.2 degree.
The laser transmitter of this structure, its heat-insulating property is better than the laser transmitter of embodiment 6, is adapted at the place of temperature higher (such as be in more than 30 degree throughout the year).
Claims (10)
1. a laser transmitter comprises shell, laser emitting module, and laser emitting module is installed in the enclosure, it is characterized in that: said laser transmitter also comprises the attemperator of being processed by the latent heat phase-change material, and attemperator is installed in the enclosure.
2. laser transmitter as claimed in claim 1 is characterized in that: leave the gap between said attemperator and the laser emitting module.
3. laser transmitter as claimed in claim 1 is characterized in that: said attemperator contacts with laser emitting module.
4. like claim 2 or 3 described laser transmitters, it is characterized in that: said laser transmitter also comprises radiator, and radiator is installed on the shell lateral surface.
5. like claim 2 or 3 described laser transmitters, it is characterized in that: said laser transmitter also comprises heater, and heater is installed in the enclosure.
6. laser transmitter as claimed in claim 5 is characterized in that: leave the gap between said heater and the attemperator, leave the gap between heater and the laser emitting module.
7. laser transmitter as claimed in claim 5 is characterized in that: said heater contacts with attemperator, leaves the gap between heater and the laser emitting module.
8. like claim 2 or 3 described laser transmitters, it is characterized in that: said laser transmitter also comprises refrigerating plant, and refrigerating plant is installed in the enclosure.
9. laser transmitter as claimed in claim 8 is characterized in that: leave the gap between said refrigerating plant and the attemperator, leave the gap between refrigerating plant and the laser emitting module.
10. laser transmitter as claimed in claim 8 is characterized in that: said refrigerating plant contacts with attemperator, leaves the gap between refrigerating plant and the laser emitting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100409404A CN102544993A (en) | 2012-02-22 | 2012-02-22 | Laser transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100409404A CN102544993A (en) | 2012-02-22 | 2012-02-22 | Laser transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102544993A true CN102544993A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100409404A Pending CN102544993A (en) | 2012-02-22 | 2012-02-22 | Laser transmitter |
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| CN (1) | CN102544993A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811976A (en) * | 2014-02-28 | 2014-05-21 | 苏州微木智能系统有限公司 | Heat dissipation device and method of pulse type high-power laser |
| CN115548865A (en) * | 2022-10-20 | 2022-12-30 | 中国航天三江集团有限公司 | Semiconductor laser temperature control system suitable for wide temperature area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811736Y (en) * | 2005-03-31 | 2006-08-30 | 新灯源科技有限公司 | High power LED lighting device with high heat radiation efficiency |
| CN102265139A (en) * | 2008-12-31 | 2011-11-30 | 光学传感器公司 | Analytical equipment enclosure incorporation phase changing materials |
-
2012
- 2012-02-22 CN CN2012100409404A patent/CN102544993A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811736Y (en) * | 2005-03-31 | 2006-08-30 | 新灯源科技有限公司 | High power LED lighting device with high heat radiation efficiency |
| CN102265139A (en) * | 2008-12-31 | 2011-11-30 | 光学传感器公司 | Analytical equipment enclosure incorporation phase changing materials |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103811976A (en) * | 2014-02-28 | 2014-05-21 | 苏州微木智能系统有限公司 | Heat dissipation device and method of pulse type high-power laser |
| CN115548865A (en) * | 2022-10-20 | 2022-12-30 | 中国航天三江集团有限公司 | Semiconductor laser temperature control system suitable for wide temperature area |
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Address after: 515000, Shantou hi tech Zone, Guangdong Province Road 6 (venture building) third, eleventh, twelfth layers Applicant after: Guangdong Donyan Network Technologies Co., Ltd. Address before: 12, building 515000, building 6, middle tech Road, hi tech Zone, Shantou, Guangdong, Shantou Applicant before: Guangdong Dongyan Network Technologies Co., Ltd. |
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Application publication date: 20120704 |