CN201083494Y - Laser marker - Google Patents
Laser marker Download PDFInfo
- Publication number
- CN201083494Y CN201083494Y CNU2007200747034U CN200720074703U CN201083494Y CN 201083494 Y CN201083494 Y CN 201083494Y CN U2007200747034 U CNU2007200747034 U CN U2007200747034U CN 200720074703 U CN200720074703 U CN 200720074703U CN 201083494 Y CN201083494 Y CN 201083494Y
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- laser
- temperature
- laser instrument
- electronic switch
- microcontroller
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- 239000003550 marker Substances 0.000 title 1
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 230000008447 perception Effects 0.000 claims description 5
- 230000006378 damage Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Semiconductor Lasers (AREA)
Abstract
The utility model relates to a laser line projector to solve the problem that the prior laser line projector can not conduct self-protection while operating at a too high or too low temperature. The utility model comprises a laser which is used for generating a laser beam for line projection, and a temperature protective device which comprises a temperature sensor, a microcontroller and an electric switch, wherein, both the temperature sensor and the electric switch are electrically connected with the microcontroller. The temperature sensor is arranged on the laser to sense the temperature of the laser, and transmits a signal to the microcontroller, if the temperature exceeds a default interval, the microcontroller opens the electric switch, thereby the laser stops operating.
Description
Technical field
The utility model relates to a kind of laser device, relates in particular to a kind of laser level that can protect laser instrument under improper temperature environment.
Background technology
Often need carry out effective straight line and throw line in daily life and industrial work progress, the straight line that industry also no longer takes the mode of traditional use messenger wire to carry out on the vertical direction is already thrown line.And, in the engineering construction process, often not only need to carry out the throwing line of vertical direction, but also need carry out level or have the straight line at certain angle of inclination to throw the line operation.In order to throw line effectively, a kind of laser level has appearred in industry, and its principle of work is to utilize a laser instrument, produce the light of straight line by laser instrument, use certain light-dividing principle then, these lines are carried out beam split, form or the throwing line operation of horizontal or vertical straight line.
No. the 200420054698.7th, existing laser level such as Chinese patent application, it has disclosed a kind of laser level, comprises body, platform, and platform is connected with body by universal joint.Body is provided with first driving mechanism, second driving mechanism, first driving mechanism is in transmission connection mutually with first screw mandrel, second driving mechanism is in transmission connection mutually with second screw mandrel, the axial line of platform respectively and the angle between two planes at the axial line place of the axial line of first screw mandrel, second screw mandrel greater than 0 degree less than 180 degree.Be connected with threaded engagement respectively on the two rhizoid bars and be connected with nut, two nuts are connected with platform respectively.Two rhizoid bars rotate and drive two nut generation axial displacements respectively, can regulate the position of platform automatically.For another example described in No. the 200420015470.7th, the Chinese patent application, disclosed the long line laser level of a kind of wide-angle in this patent document, only with a laser instrument, notching construction by secondary optics focusing and sleeve, again through of the diffusion of cylindrical glass rod to laser beam, acquisition greater than 180 degree, lines and the more uniform laser bright line of brightness, and laser to throw the operating distance of line farther.Above-mentioned two patented claims all can be thrown line effectively, and in these two patented claims, its laser instrument all is independently to carry out work.
Yet, the power out-put characteristic of laser instrument is subjected to Temperature Influence very big, rising along with temperature, the working current of laser instrument can raise, cause the energy conversion efficiency of laser instrument to reduce, convert electrical energy into heat energy (as shown in Figure 1), the laser instrument emission wavelength is also along with variation of temperature is drifted about (as shown in Figure 2).
Therefore, if can not effectively be controlled in certain operating temperature range, not only influence laser characteristic, even can damage laser instrument laser instrument.
The utility model content
The technical matters that the utility model solves is at the deficiencies in the prior art, and a kind of laser level that temperature protection can be provided is provided.
For addressing the above problem; the utility model provides a kind of laser level; thereby include in order to produce laser and throw the laser instrument of line; this laser instrument has power circuit; wherein this laser level also includes temperature protective device; this temperature protective device has a temperature sensor; one microcontroller and an electronic switch; said temperature sensor and electronic switch all are electrically connected on the microcontroller; and electronic switch also is arranged on the power circuit of laser instrument; temperature sensor is arranged on the above-mentioned laser instrument, in order to the temperature of perception laser instrument, after temperature exceeds a predetermined interval; the microprocessor controls electronic switch cuts out, and this moment, laser instrument quit work.
The utility model also has following feature: described temperature sensor is a thermistor, described thermistor is the thermistor of negative temperature coefficient, the predetermined interval of described temperature is-15 ℃～+ 50 ℃, is preferably-10 ℃～+ 45 ℃, and described electronic switch is the MOS switch on the microcontroller.
For addressing the above problem; the utility model provides a kind of laser; include in order to lasing laser instrument; this laser instrument has power circuit; wherein this laser also includes temperature protective device; this temperature protective device has a temperature sensor; one microcontroller and an electronic switch; said temperature sensor and electronic switch all are electrically connected on the microcontroller; and electronic switch also is arranged on the power circuit of laser instrument; temperature sensor is arranged on the above-mentioned laser instrument, in order to the temperature of perception laser instrument, after temperature exceeds a predetermined interval; the microprocessor controls electronic switch cuts out, and this moment, laser instrument quit work.
By above-mentioned setting, outside temperature is in predetermined interval, as microcontroller can cut out electronic switch when being lower than-15 ℃ or be higher than+50 ℃, and this moment, the laser instrument generator was not worked the damage of avoiding laser instrument to work and caused under too high or too low temperature.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the utility model is further described.
Fig. 1 is the laser instrument synoptic diagram that electric energy transforms when different temperatures.
Fig. 2 is the synoptic diagram that drift takes place along with variation of temperature the laser instrument emission wavelength.
Fig. 3 is the structural representation of a kind of laser level of the utility model.
Embodiment
See also shown in Figure 3ly, a kind of laser level of the utility model comprises laser instrument 1 and temperature protective device 2.Laser instrument 1 includes power circuit 11, throws line thereby laser instrument 1 can produce laser.Temperature protective device 2 has a temperature sensor; in the present embodiment; this temperature sensor is that thermistor 21, this thermistor 21 are arranged on the above-mentioned laser instrument 1, and is connected with microcontroller 22, and above-mentioned microcontroller 22 further is connected in an electronic switch 23.In addition, this electronic switch 23 also is arranged on the power circuit 11 of laser instrument 1, thermistor 22 is arranged on the tube core of above-mentioned laser instrument 1, in order to the temperature of perception laser instrument 1, after temperature exceeds a predetermined interval, the predetermined space of this temperature can be-15 ℃～+ 50 ℃, also can be set to-10 ℃～+ 45 ℃ more accurately, at this moment, microcontroller 22 control electronic switches 23 cut out, this moment, the power circuit 11 of laser instrument 1 disconnected, so laser instrument 1 quits work.In the present embodiment, thermistor 21 is preferably the thermistor of negative temperature coefficient.And electronic switch 23 can also can be the MOS switch on the microcontroller 22 for what be provided with separately.
At work, when if the temperature of laser instrument 1 is lower than-15 ℃, or when being higher than 50 ℃, thermistor 21 is affixed on the laser instrument 1, since the characteristic of thermistor 21, the variation (corresponding relation of its temperature variation and resistance change is as shown in the table) that the corresponding generation of its resistance in temperature variation is certain, therefore, in temperature not simultaneously, the electric signal difference that is produced according to thermistor 21 can not predict the temperature of laser instrument 1 at that time.And the resistance value of thermistor 21 can learn that then the temperature of laser instrument 1 is lower than-15 ℃ when surpassing 53.45K Ω.Similarly, when the resistance value of thermistor 21 less than 4.16 the time, can learn that then the temperature of laser instrument 1 is higher than 50 ℃.As long as when temperature was in outside-15 ℃～50 ℃ the interval, microcontroller 22 promptly can control electronic switch 23 and cut out, then laser instrument 22 quits work.Can also can protect laser instrument 1 so that the precision of laser instrument 1 is higher like this, prevent that it from coming to harm.In order to increase factor of assurance, the said temperature interval also can be set to other more exact figure in addition, as-10 ℃～45 ℃.
| T(℃) | R(KΩ) |
| -15 | 53.45 |
| -10 | 42.27 |
| 0 | 27.62 |
| 25 | 10 |
| 45 | 4.916 |
| 50 | 4.16 |
In addition, technological thought of the present invention also can be used on other laser device with laser instrument, guaranteeing its laser precision, and can increase the life-span of laser.
Comprehensively above-mentioned; the utility model has been finished designer's purpose of design; use laser level of the present utility model or laser; after temperature surpasses predetermined interval; laser instrument can quit work automatically, like this, not only can guarantee the degree of accuracy of laser; also can effectively protect, increase its serviceable life laser instrument.
Claims (10)
1. laser level; thereby include in order to produce laser and throw the laser instrument of line; this laser instrument has power circuit; it is characterized in that: this laser level also includes temperature protective device; this temperature protective device has a temperature sensor; one microcontroller and an electronic switch; said temperature sensor and electronic switch all are electrically connected on the microcontroller; and electronic switch also is arranged on the power circuit of laser instrument; temperature sensor is arranged on the above-mentioned laser instrument; temperature in order to the perception laser instrument; after temperature exceeded a predetermined interval, the microprocessor controls electronic switch cut out, and this moment, laser instrument quit work.
2. laser level as claimed in claim 1 is characterized in that: described temperature sensor is a thermistor.
3. laser level as claimed in claim 2 is characterized in that: described thermistor is the thermistor of negative temperature coefficient.
4. laser level as claimed in claim 1 is characterized in that: the predetermined interval of described temperature is-15 ℃～+ 50 ℃.
5. laser level as claimed in claim 4 is characterized in that: the predetermined interval of described temperature is-10 ℃～+ 45 ℃.
6. laser level as claimed in claim 1 is characterized in that: described electronic switch is the MOS switch on the microcontroller.
7. laser; include in order to lasing laser instrument; this laser instrument has power circuit; it is characterized in that: this laser also includes temperature protective device; this temperature protective device has a temperature sensor; one microcontroller and an electronic switch; said temperature sensor and electronic switch all are electrically connected on the microcontroller; and electronic switch also is arranged on the power circuit of laser instrument; temperature sensor is arranged on the above-mentioned laser instrument; temperature in order to the perception laser instrument; after temperature exceeded a predetermined interval, the microprocessor controls electronic switch cut out, and this moment, laser instrument quit work.
8. laser as claimed in claim 7 is characterized in that: described temperature sensor is a thermistor.
9. laser as claimed in claim 8 is characterized in that: described thermistor is the thermistor of negative temperature coefficient.
10. laser as claimed in claim 7 is characterized in that: the predetermined interval of described temperature is-10 ℃～+ 45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200747034U CN201083494Y (en) | 2007-09-14 | 2007-09-14 | Laser marker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200747034U CN201083494Y (en) | 2007-09-14 | 2007-09-14 | Laser marker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201083494Y true CN201083494Y (en) | 2008-07-09 |
Family
ID=39625961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200747034U Expired - Lifetime CN201083494Y (en) | 2007-09-14 | 2007-09-14 | Laser marker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201083494Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664496A (en) * | 2016-07-28 | 2018-02-06 | 罗伯特·博世有限公司，香港 | Laser line tool with adaptive thermal control function |
| CN112857331A (en) * | 2019-11-26 | 2021-05-28 | 常州华达科捷光电仪器有限公司 | a laser line projector |
-
2007
- 2007-09-14 CN CNU2007200747034U patent/CN201083494Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107664496A (en) * | 2016-07-28 | 2018-02-06 | 罗伯特·博世有限公司，香港 | Laser line tool with adaptive thermal control function |
| CN107664496B (en) * | 2016-07-28 | 2021-08-17 | 罗伯特·博世有限公司，香港 | Laser scribing tool with adaptive thermal control |
| CN112857331A (en) * | 2019-11-26 | 2021-05-28 | 常州华达科捷光电仪器有限公司 | a laser line projector |
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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 |
Granted publication date: 20080709 |
|
| CX01 | Expiry of patent term |