CN209119544U - A kind of radiator of laser - Google Patents
A kind of radiator of laser Download PDFInfo
- Publication number
- CN209119544U CN209119544U CN201821951496.0U CN201821951496U CN209119544U CN 209119544 U CN209119544 U CN 209119544U CN 201821951496 U CN201821951496 U CN 201821951496U CN 209119544 U CN209119544 U CN 209119544U
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- Prior art keywords
- diode
- resistance
- anode
- tap
- comparator
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Abstract
A kind of radiator of laser, it is characterized in that, hygrosensor, comparator, electric switch including laser temperature and partly lead cooling piece processed, wherein, hygrosensor includes first resistor, second resistance, 3rd resistor and thermistor, first resistor and second resistance are connected in series and are connected between power supply and ground, and wherein intermediate node is connected to the inverting input terminal of comparator；Second resistance and 3rd resistor are connected in series and are connected between power supply and ground, and wherein intermediate node is connected to the non-inverting input terminal of comparator；The output end of comparator is connected to the control terminal of electric switch；The first end and second end of electric switch is connected between the second end of semiconductor chilling plate and ground, and first end is connected to power supply circuit simultaneously.The radiator of laser provided by the utility model can make laser have strong cold state and hold mode.
Description
Technical field
The utility model relates to a kind of radiators of laser, belong to laser cooling technology field.
Background technique
The radiator of the laser provided in the prior art can only make laser be in refrigerating state, strong without can be carried out
System refrigeration.
Utility model content
To overcome disadvantage existing in the prior art, the goal of the invention of the utility model is to provide a kind of heat dissipation of laser
Device, capable of making laser, there are two types of refrigerating state, i.e., strong cold state and hold modes.
To realize the goal of the invention, the utility model provides a kind of radiator of laser, which is characterized in that including
The hygrosensor of laser temperature, comparator, electric switch and partly lead cooling piece processed, wherein hygrosensor includes the first electricity
Resistance, second resistance, 3rd resistor and thermistor, first resistor and second resistance are connected in series and are connected between power supply and ground,
Wherein intermediate node is connected to the inverting input terminal of comparator；Second resistance and 3rd resistor are connected in series and are connected to power supply and ground
Between, wherein intermediate node is connected to the non-inverting input terminal of comparator；The output end of comparator is connected to the control terminal of electric switch；It establishes by cable
The first end and second end of pass is connected between the second end of semiconductor chilling plate and ground, and first end is connected to power supply simultaneously
Circuit.
Preferably, the comparator includes operational amplifier, the 4th resistance and first diode, the output of operational amplifier
End is connected to the cathode of first diode, and the anode of first diode is connected to the first end of the 4th resistance, and the of first resistor
Two ends are connected to the reverse side of operational amplifier.
Preferably, power supply circuit includes transformer, the second diode, third diode, the 4th diode, the five or two pole
Pipe, first capacitor and the second capacitor, wherein transformer is connected to city's supply voltage, and there are five take out for secondary coil tool
Head, the first tap are connected to the cathode of the second diode, and the second tap is connected to the cathode of third diode, the connection of the 4th tap
In the cathode of the 4th diode, the 5th tap is connected to the cathode of the 5th diode, the anode of third diode and the four or two pole
The anode of pipe is connected and is connected to the second end of semiconductor chilling plate；The anode of second diode and the positive phase of the 5th diode
Connecting and is connected to ground, the first end of first capacitor is connected to the anode of the second diode, and second end is connected to third tap, and second
The first end of capacitor is connected to third tap, and second end is connected to the anode of the 5th diode.
Preferably, the radiator of laser further includes fan motor, and the first terminals of the fan motor are connected to
Third tap, the second terminals are connected to ground through current-limiting resistance.
Preferably, the radiator of laser further includes zener diode and the 5th resistance, and the zener diode is just
Pole is connected to the second end of semiconductor chilling plate, and the cathode of zener diode is connected to the first end of the 5th resistance, the 5th resistance
Second end be connected to the first end of semiconductor chilling plate.
Compared with prior art, the radiator of laser provided by the utility model can make laser have strong cold state
And hold mode.
Detailed description of the invention
Fig. 1 is the circuit diagram of the radiator of laser provided by the utility model.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " first ", " second " etc. are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be electrical connection, it is also possible to be connected directly, can also can also be inside two elements indirectly connected through an intermediary
Connection, for the ordinary skill in the art, can understand the tool of above-mentioned term in the present invention with concrete condition
Body meaning.
Fig. 1 is the circuit diagram of the radiator of laser provided by the utility model, as shown in Figure 1, the utility model mentions
The radiator of the laser of confession includes the hygrosensor of laser 20, comparator, electric switch and partly leads cooling piece 10 processed,
In, hygrosensor includes first resistor R1, second resistance R2,3rd resistor R3 and thermistor RT, first resistor R1 and heat
Quick resistance RT is connected in series and is connected between power supply and ground, and wherein intermediate node is connected to the inverting input terminal of comparator, the electricity
Source is provided by the third tap of transformer B1 through current-limiting resistance R7；Second resistance R2 and 3rd resistor R3 are connected in series and are connected to electricity
Between source and ground, wherein intermediate node is connected to the non-inverting input terminal of comparator, and the power supply is passed through by the third tap of transformer B1
Current-limiting resistance R7 is provided；The output end of comparator is connected to the control terminal of electric switch, and preferably the output end of comparator is through current limliting
Resistance R6 is connected to the control terminal of electric switch；The first end and second end of electric switch is connected to the second of semiconductor chilling plate
Between end and ground, first end is connected to power supply circuit simultaneously.In the utility model, the preferred metal-oxide-semiconductor T1 of electric-controlled switch.
Preferably, the comparator includes operational amplifier IC1 and the 4th resistance 4 and first diode D1, operation amplifier
The output end of device IC is connected to the cathode of first diode D1, and the anode of first diode D1 is connected to the first of the 4th resistance R4
End, the second end of first resistor R4 are connected to ground.Power supply circuit include transformer N1, the second diode D2, third diode D3,
4th diode D4, the 5th diode D5, first capacitor C1 and the second capacitor C2, wherein the primary coil of transformer is connected to
City supply voltage ui；For secondary coil tool there are five tap, the first tap is connected to the cathode of the second diode D2, and the second tap connects
It is connected to the cathode of third diode D3, the 4th tap is connected to the cathode of the 4th diode D4, and the 5th tap is connected to the five or two
The anode of the cathode of pole pipe D5, third diode D3 is connected with the anode of the 4th diode D4 and is connected to semiconductor chilling plate 10
Second end；The anode of the second diode D2 is connected and is connected to the anode of the 5th diode D5, and the of first capacitor C1
One end is connected to the anode of the second diode D2, and second end is connected to third tap, and the first end of the second capacitor C2 is connected to
Three taps, second end are connected to the anode of the 5th diode D5.
Preferably, the radiator of laser further includes fan, the first terminals of the motor M for driving the fan
It is connected to third tap, the second terminals are connected to ground through current-limiting resistance R8.It is further preferred that the radiator of laser also wraps
Diode D6 is included, the anode of diode D6 is connected to the anode of third diode D3, and cathode is connected to the second end of motor M.
Preferably, the radiator of laser further includes zener diode VZ2 and the 5th resistance R5, the zener diode
The anode of VZ2 is connected to the second end of semiconductor chilling plate 10, and the cathode of zener diode VZ2 is connected to the of the 5th resistance R6
The second end of one end, the 5th resistance R5 is connected to the first end of semiconductor chilling plate 10.
In the utility model, by changing the voltage of semiconductor refrigerating phase on piece, making laser, there are two types of states, i.e., strong cold
State and hold mode, RT are the thermistor of a negative temperature coefficient.It is affixed on the wall of laser, for detecting temperature.Work as temperature
When degree rises to setting value, the resistance decrease of RT, the voltage of the output end of operational amplifier is high level, and D1 ends, T1 conducting,
A point is identical as C point current potential, makes to be added on a biggish voltage on semiconductor chilling plate 10, the refrigeration work consumption of semiconductor chilling plate
Larger, fan rotation is very fast, makes laser forced refrigeration；When temperature drops to setting value, the resistance value of RT rises, operational amplifier
Output end voltage be low level, D1 conducting, T1 cut-off, A point and C point current potential be not identical, makes to be added on semiconductor chilling plate 10
The refrigeration work consumption of a upper lesser voltage, semiconductor chilling plate reduces, and fan rotation is slower, and laser is made to keep set temperature
Near.
Above in conjunction with attached drawing, the working principle of the utility model is described in detail.But those skilled in the art
It should be understood that specification is only for interpreting the claims.But the protection scope of the utility model is not limited to specification.
Anyone skilled in the art in the technical scope that the utility model discloses, the variation that can readily occur in or
Replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be wanted with right
It asks subject to the protection scope of book.
Claims (5)
1. a kind of radiator of laser, which is characterized in that hygrosensor, comparator including laser temperature are established by cable
It closing and partly leads cooling piece processed, wherein hygrosensor includes first resistor, second resistance, 3rd resistor and thermistor, and first
Resistance and second resistance are connected in series and are connected between power supply and ground, and wherein intermediate node is connected to the inverting input terminal of comparator；
Second resistance and 3rd resistor are connected in series and are connected between power supply and ground, and wherein intermediate node is connected to the homophase input of comparator
End；The output end of comparator is connected to the control terminal of electric switch；The first end and second end of electric switch is connected to semiconductor
Between the second end and ground of cooling piece, first end is connected to power supply circuit simultaneously.
2. the radiator of laser according to claim 1, which is characterized in that the comparator includes operation amplifier
The output end of device, the 4th resistance and first diode, operational amplifier is connected to the cathode of first diode, first diode
Anode is connected to the first end of the 4th resistance, and the second end of first resistor is connected to the reverse side of operational amplifier.
3. the radiator of laser according to claim 2, which is characterized in that power supply circuit includes transformer, second
Diode, third diode, the 4th diode, the 5th diode, first capacitor and the second capacitor, wherein primary line
Circle is connected to city's supply voltage, and for secondary coil tool there are five tap, the first tap is connected to the cathode of the second diode, and second takes out
Head is connected to the cathode of third diode, and the 4th tap is connected to the cathode of the 4th diode, and the 5th tap is connected to the five or two
The anode of the cathode of pole pipe, third diode is connected and is connected to the second of semiconductor chilling plate with the anode of the 4th diode
End；The anode of second diode is connected and is connected to the anode of the 5th diode, and the first end of first capacitor is connected to the
The anode of two diodes, second end are connected to third tap, and the first end of the second capacitor is connected to third tap, second end connection
In the anode of the 5th diode.
4. the radiator of laser according to claim 3, which is characterized in that it further include fan motor, the fan
First terminals of motor are connected to third tap, and the second terminals are connected to ground through current-limiting resistance.
5. the radiator of laser according to claim 4, which is characterized in that further include zener diode and the 5th electricity
Resistance, the anode of the zener diode are connected to the second end of semiconductor chilling plate, and the cathode of zener diode is connected to the 5th
The second end of the first end of resistance, the 5th resistance is connected to the first end of semiconductor chilling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951496.0U CN209119544U (en) | 2018-11-21 | 2018-11-21 | A kind of radiator of laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951496.0U CN209119544U (en) | 2018-11-21 | 2018-11-21 | A kind of radiator of laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209119544U true CN209119544U (en) | 2019-07-16 |
Family
ID=67206429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821951496.0U Expired - Fee Related CN209119544U (en) | 2018-11-21 | 2018-11-21 | A kind of radiator of laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209119544U (en) |
-
2018
- 2018-11-21 CN CN201821951496.0U patent/CN209119544U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20191121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |