CN202030202U - Simple vacuum thermal insulation device used for circuit temperature control - Google Patents
Simple vacuum thermal insulation device used for circuit temperature control Download PDFInfo
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- CN202030202U CN202030202U CN2011200340541U CN201120034054U CN202030202U CN 202030202 U CN202030202 U CN 202030202U CN 2011200340541 U CN2011200340541 U CN 2011200340541U CN 201120034054 U CN201120034054 U CN 201120034054U CN 202030202 U CN202030202 U CN 202030202U
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- Prior art keywords
- temperature
- jar
- vacuum
- circuit
- circuit controling
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- Control Of Resistance Heating (AREA)
Abstract
The utility model provides a simple vacuum thermal insulation device used for circuit temperature control, comprising a thermal insulation pot. The thermal insulation pot is formed by two buckled openmouthed vacuum glass liners with glass films; one vacuum glass liner is sleeved on an outer wall of the other vacuum glass liner to certain depth; buckling parts are provided with a foam cushion; and a temperature controlled circuit or electronic components are arranged inside the thermal insulation pot and are led out through connection leads traversing the foam cushion. The device is simple and practical; manufacturing cost is low; thermal insulation effect is good; temperature fluctuation range can be predicted; and the thermal insulation for the temperature controlled circuit or electronic components is realized.
Description
Technical field
The utility model relates to a kind of heat-preserving equipment technical field, particularly a kind of simple vacuum attemperator that is used for circuit controling temperature.
Background technology
Measuring parameters such as resistance in the circuit or voltage can change under Temperature Influence, so usually circuit or electronic devices and components being arranged on makes it avoid the interference of external temperature in the circuit controling temperature jar, the outer setting leak free of this circuit controling temperature jar insulation jar, and come temperature in the control circuit temperature control jar by connecting temperature controller.Existing temperature controller mainly comprises temperature-adjusting circuit, its structural representation as shown in Figure 1, temperature-adjusting circuit comprises bonded assembly power supply U successively
S, resistance bridge (R
1, R
2, R
3And R
T), amplifier IC, power amplifier 1 and heater block 2, by thermally dependent resistor R is set in resistance bridge
T, and with this thermally dependent resistor R
TBe arranged in the circuit controling temperature jar 4 and heater block 2 is arranged at the outside face of circuit controling temperature jar 4, the structural representation of existing circuit controling temperature jar as shown in Figure 2 and insulation jar, wherein, b, c, d and 4 corresponding respectively linking to each other of e among Fig. 1 and Fig. 2.When the temperature in the circuit controling temperature jar 4 is lower than design temperature, thermally dependent resistor R
TChanged by its resistance of Temperature Influence, cause having voltage difference between a, the b of resistance bridge at 2, it is the electric bridge overbalance, make the input end of amplifier IC have differential signal, and then go to provide electric current after by power amplifier 1 amplifier IC output signal being amplified to heater block 2, to improve the temperature in the circuit controling temperature jar 4, when the temperature in the circuit controling temperature jar 4 reaches the temperature of setting, utilize thermally dependent resistor R
TTemperature sense, the resistance bridge balance, the outgoing current that makes power amplifier 1 in the temperature controller is zero, above process constantly circulates, and makes that the temperature in the circuit controling temperature jar 4 can be controlled at restricted portion.
In Fig. 2, circuit controling temperature jar 4 is arranged in the leak free insulation jar 3, insulation jars 3 is generally the pressing mold jar that cemented seam can that high-density sponge mills or polystyrene are made, if the tank skin of insulation jar 3 does not have vacuum interlayer, then the insulation jar can't play good insulation effect, cause insulation jar 3 and circuit controling temperature jar 4 interior temperature imbalances very fast,, influence the accurate temperature controlling effect so temperature fluctuation range is big.If the tank skin of insulation jars 3 is provided with vacuum interlayer, then need additionally to adopt equipment such as vacuum pump to vacuumize, and seal, increased process complexity step and cost.And the leak tightness of the pressing mold jar made of the cemented seam can that mills of high-density sponge and polystyrene is all very poor, for reaching heat insulation effect preferably, often needs to improve certain heat insulation effect by the mode that increases thickness, and cost and volume significantly increase.
The utility model content
The utility model is at defective that exists in the prior art or deficiency, a kind of simple vacuum attemperator that is used for circuit controling temperature is provided, this simple and easy attemperator is simple and practical, cost of manufacture is low, and high insulating effect, the temperature fluctuation range of can drawing up realizes by the insulation of the circuit of temperature control or electronic devices and components.
The technical solution of the utility model is as follows:
A kind of simple vacuum attemperator that is used for circuit controling temperature, it is characterized in that, comprise the insulation jar, described insulation jar is that two uncovered vacuum refills with coating film on glass fasten mutually and form, be that one of them vacuum refill is enclosed within the outer wall of another vacuum refill to certain depth, described fastening position is provided with foam carpet, is arranged at the inside of insulation jar by the circuit of temperature control or electronic devices and components and passes foam carpet by connecting wire and draw.
Describedly be arranged in the circuit controling temperature jar by the circuit of temperature control or electronic devices and components, described circuit controling temperature jar and all be arranged at the inside of insulation jar in order to the heater block in the temperature controller of realizing circuit controling temperature jar temperature control, lead that belongs to the thermally dependent resistor in the temperature controller that the inside of circuit controling temperature jar is provided with and the lead of heater block that is arranged at the can body outside face of circuit controling temperature jar all pass foam carpet and draw.
Described temperature controller is a high precision temperature controller, and described high precision is meant temperature-controlled precision at 0.01 ℃, promptly design temperature up and down between the wave zone≤0.01 ℃; Described high-precision controller comprises temperature-adjusting circuit, and described temperature-adjusting circuit comprises bonded assembly power supply, resistance bridge, amplifier, power amplifier and heater block successively, and described resistance bridge comprises thermally dependent resistor, and described thermally dependent resistor is arranged in the circuit controling temperature jar.
The skin of described insulation jar is provided with the foam protective cover.
Described certain depth surpasses 2/3rds of quilt cover vacuum refill height.
Technique effect of the present utility model is as follows:
The simple vacuum attemperator that is used for circuit controling temperature that the utility model relates to, comprise that two uncovered vacuum refills with coating film on glass fasten the insulation jar that forms mutually, be that one of them vacuum refill is enclosed within the outer wall of another vacuum refill to certain depth, fasten the position and be provided with foam carpet, to be arranged at the inside of insulation jar by the circuit of temperature control or electronic devices and components, and pass foam carpet by connecting wire and draw.This device will be fastened on the inside of two vacuum refills by the circuit of temperature control or electronic devices and components, realization is to being incubated by the simple vacuum of the circuit of temperature control or electronic devices and components, because having vacuum layer, vacuum refill can play the effect of vacuum heat-insulation, make little by the temperature fluctuation range of the circuit of temperature control or electronic devices and components, thereby reach the effect of circuit controling temperature, and the vacuum refill simple in structure and low in cost of coating film on glass, by fastening and foam carpet being set at the fastening position, can make that heat-insulation layer seals fully, need not to be provided with a jar plug, also need not extra soldered, simple structure, easy to use.
To be arranged in the circuit controling temperature jar by the circuit of temperature control or electronic devices and components, and circuit controling temperature jar and the inside that all is arranged at the insulation jar in order to the heater block in the temperature controller of realizing circuit controling temperature jar temperature control, the temperature controller of realizing circuit controling temperature jar temperature control is set to high precision temperature controller, in its temperature-adjusting circuit, resistance bridge comprises thermally dependent resistor, this thermally dependent resistor is arranged in the circuit controling temperature jar, thermally dependent resistor is under the situation of drop in temperature, the resistance bridge impedance unbalance that measures, make the input end of amplifier have differential signal, export through amplifier, the electric current output of control power amplifier, make the heating of heater block of the outside face of temperature control jar, temperature sense by thermally dependent resistor, make power amplifier at the state alternation that electric current output and no current output are arranged, therefore heater block also is in heating and athermic alternation state, make temperature be in steady state, wherein insulation is the important step of temperature stabilization, because only the fine adjustments under very little temperature traverse could realize the high stability temperature control, the simple vacuum attemperator that cooperates the utility model to adopt, finally make temperature in the high-precision circuit temperature control jar to be controlled at and need restricted portion, and the temperature fluctuation of can drawing up, this temperature controller makes that temperature-controlled precision is 0.01 ℃ in the circuit controling temperature jar, reduce temperature deviation, can satisfy the measurement requirement of accuracy requirement than higher circuit.
Description of drawings
Fig. 1 is the existing structural representation that is used for the temperature controller of circuit controling temperature jar.
Fig. 2 is the structural representation of existing circuit controling temperature jar and insulation jar.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 preferably is used for the structural representation of the high precision temperature controller of circuit controling temperature jar for the utility model.
Fig. 5 is the structural representation of the circuit controling temperature jar of insulation jar of the present utility model and high precision temperature controller control.
Each label lists as follows among the figure:
The 1-power amplifier; The 2-heater block; 3-is incubated jar; 4-circuit controling temperature jar; The 5-foam carpet; The 6-vacuum refill.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described.
The utility model relates to the simple vacuum attemperator that is used for circuit controling temperature, structural representation as shown in Figure 3, this device comprises the insulation jar, this insulation jar is that two uncovered vacuum refills with coating film on glass, 6 mutual fastenings form, the uncovered bore of two vacuum refills 6 is chosen as small one and large one, the uncovered bore of the top vacuum refill of this embodiment is less than the uncovered bore of following vacuum refill, following vacuum refill can overlap the outer wall of vacuum refill in the above to certain depth, this degree of depth can surpass 2/3rds of following vacuum refill height, interlayer in the glass liner wall of two vacuum refills 6 is vacuum, the fastening position of two vacuum refills 6 is provided with foam carpet 5 and makes the sealing fully of insulation jar, will be arranged at the inside of insulation jar by the circuit of temperature control or electronic devices and components and pass foam carpet 5 by connecting wire and draw.
Preferably, to be arranged in the circuit controling temperature jar by the circuit of temperature control or electronic devices and components, all be arranged at the inside of insulation jar with the circuit controling temperature jar and in order to the heater block in the temperature controller of realizing circuit controling temperature jar temperature control, lead that belongs to the thermally dependent resistor in the temperature controller that the inside of circuit controling temperature jar is provided with and the lead of heater block that is arranged at the can body outside face of circuit controling temperature jar all pass foam carpet 5 and draw.
The performing step of above-mentioned simple vacuum attemperator is: two uncovered vacuum refills with coating film on glass 6 are fastened mutually; promptly the uncovered bore of two vacuum refills 6 is chosen as small one and large one; one of them vacuum refill is enclosed within the outer wall of another vacuum refill to certain depth; this degree of depth can surpass 2/3rds of quilt cover vacuum refill height; thereby with circuit controling temperature jar and the inside that all is fastened on described two vacuum refills in order to the heater block in the high precision temperature controller of realizing circuit controling temperature jar temperature control; and foam carpet 5 is set fastening the position; lead that belongs to the thermally dependent resistor in the high precision temperature controller that the inside of circuit controling temperature jar is provided with and the lead of heater block that is arranged at the can body outside face of circuit controling temperature jar all pass foam carpet 5 and draw, and coat the foam protective cover at the outside face of the described vacuum refill that fastens mutually.
Fig. 4 preferably is used for the structural representation of the high precision temperature controller of circuit controling temperature jar for the utility model, and high precision herein is meant temperature-controlled precision at 0.01 ℃, promptly design temperature up and down between the wave zone≤0.01 ℃; This high precision temperature controller comprises temperature-adjusting circuit, and this temperature-adjusting circuit comprises bonded assembly power supply U successively
S, resistance bridge (R
1, R
2, R
3And R
T), amplifier IC, aerotron VT and resistor wire R
A, wherein, the R in the resistance bridge
1, R
2And R
3The resistance of three resistance all is preferably 50k Ω, R
TBe thermally dependent resistor, resistance is preferably 50k Ω at temperature controlling point, the R in the resistance bridge
1And R
2Series connection, and R
3And R
TSeries connection back all with power supply U
SParallel connection, and R
1And R
3Be oppositely arranged R
2And R
TBe oppositely arranged; The reverse input end of amplifier IC and R
1And R
2Between the A point link to each other the positive input of amplifier IC and R
3And R
TBetween the B point link to each other, the mouth of amplifier IC connects the base stage of aerotron VT, aerotron VT is a kind of power amplifier, its emitter connects the end of resistor wire R, collecting electrode connects power supply U
SAnodal; The other end of resistor wire R connects power supply U
SNegative pole (being ground connection).
For realizing high accuracy temperature control, with thermally dependent resistor R to the circuit controling temperature jar
TBe arranged in the circuit controling temperature jar, as the resistor wire R of heater block
ABe wound in the can body outside face of circuit controling temperature jar, the circuit controling temperature jar is arranged in the disclosed simple vacuum attemperator of the utility model, this simple vacuum attemperator comprises leak free insulation jar, the circuit controling temperature jar is arranged at the inside of leak free insulation jar, the structural representation of the circuit controling temperature jar of insulation jar as shown in Figure 5 and high precision temperature controller control.This insulation jar is that two uncovered vacuum refills with coating film on glass, 6 mutual fastenings form; interlayer in the glass liner wall of two vacuum refills 6 is vacuum; the fastening position of two vacuum refills 6 is provided with foam carpet 5 makes the insulation jar seal fully; for making the insulation more of insulation jar; also can further at the skin that is incubated jar the foam protective cover be set, promptly the superficies at two vacuum refills 6 coat the foam protective cover.With the thermally dependent resistor R in the high precision temperature controller shown in Figure 4
TBe arranged in the circuit controling temperature jar 4 thermally dependent resistor R
TThe two ends lead can be drawn from foam carpet 5, and 2 of B as shown in Figures 4 and 5, C are corresponding respectively continuous, resistor wire R
ABe wound in the can body outside face of circuit controling temperature jar 4, resistor wire R two ends lead is also drawn from foam carpet 5,2 corresponding respectively linking to each other of D as shown in Figures 4 and 5, E.
When the temperature in the circuit controling temperature jar 4 is lower than design temperature, be arranged on the thermally dependent resistor R in the circuit controling temperature jar 4
TBe subjected to its resistance of thermoinduction and change, the feasible resistance bridge impedance unbalance that measures, promptly 2 of A, B produce difference of potential, thus the input end of amplifier IC has differential signal, removes controlling resistance silk R again after further by aerotron VT its output signal being amplified
AElectric current output because resistor wire R
ABe wound in the can body outside face of circuit controling temperature jar 4 as heater block, thus the temperature in the circuit controling temperature jar 4 can be improved, when the temperature in the circuit controling temperature jar 4 reaches the temperature that needs qualification, by thermally dependent resistor R
TTemperature sense, make that finally the outgoing current of power amplifier 1 reduces in the temperature controller, make the temperature in the circuit controling temperature jar 4 can be controlled at restricted portion, by the insulation of simple vacuum attemperator realization of the present utility model to the circuit controling temperature jar, and the temperature fluctuation of can drawing up, this high precision temperature controller makes that temperature-controlled precision is 0.01 ℃ in the circuit controling temperature jar 4, when needing limiting temperature to be 30 ℃ when the circuit controling temperature jar, carry out temperature control by high precision temperature controller and the temperature in the circuit controling temperature jar 4 can be controlled at 30 ℃ ± 0.01 ℃, so can reduce temperature deviation, realize the high accuracy temperature control and the insulation of circuit controling temperature jar, can not be subjected to temperature disturbance when making circuit working in the circuit controling temperature jar, satisfy the measurement requirement of accuracy requirement than higher circuit.
Should be pointed out that the above specific embodiment can make those skilled in the art more fully understand the invention, but do not limit the present invention in any way creation.Therefore; although this specification sheets has been described in detail the invention with reference to drawings and Examples; but; those skilled in the art are to be understood that; still can make amendment or be equal to replacement the invention; in a word, all do not break away from the technical scheme and the improvement thereof of the spirit and scope of the invention, and it all should be encompassed in the middle of the protection domain of the invention patent.
Claims (5)
1. simple vacuum attemperator that is used for circuit controling temperature, it is characterized in that, comprise the insulation jar, described insulation jar is that two uncovered vacuum refills with coating film on glass fasten mutually and form, be that one of them vacuum refill is enclosed within the outer wall of another vacuum refill to certain depth, described fastening position is provided with foam carpet, is arranged at the inside of insulation jar by the circuit of temperature control or electronic devices and components and passes foam carpet by connecting wire and draw.
2. simple vacuum attemperator according to claim 1, it is characterized in that, describedly be arranged in the circuit controling temperature jar by the circuit of temperature control or electronic devices and components, described circuit controling temperature jar and all be arranged at the inside of insulation jar in order to the heater block in the temperature controller of realizing circuit controling temperature jar temperature control, lead that belongs to the thermally dependent resistor in the temperature controller that the inside of circuit controling temperature jar is provided with and the lead of heater block that is arranged at the can body outside face of circuit controling temperature jar all pass foam carpet and draw.
3. simple vacuum attemperator according to claim 2 is characterized in that, described temperature controller is a high precision temperature controller, and described high precision is meant temperature-controlled precision at 0.01 ℃, promptly design temperature up and down between the wave zone≤0.01 ℃; Described high-precision controller comprises temperature-adjusting circuit, and described temperature-adjusting circuit comprises bonded assembly power supply, resistance bridge, amplifier, power amplifier and heater block successively, and described resistance bridge comprises thermally dependent resistor, and described thermally dependent resistor is arranged in the circuit controling temperature jar.
4. according to the described simple vacuum attemperator of one of claim 1 to 3, it is characterized in that the skin of described insulation jar is provided with the foam protective cover.
5. according to the described simple vacuum attemperator of one of claim 1 to 3, it is characterized in that described certain depth surpasses 2/3rds of quilt cover vacuum refill height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200340541U CN202030202U (en) | 2011-01-31 | 2011-01-31 | Simple vacuum thermal insulation device used for circuit temperature control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200340541U CN202030202U (en) | 2011-01-31 | 2011-01-31 | Simple vacuum thermal insulation device used for circuit temperature control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202030202U true CN202030202U (en) | 2011-11-09 |
Family
ID=44892510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200340541U Expired - Fee Related CN202030202U (en) | 2011-01-31 | 2011-01-31 | Simple vacuum thermal insulation device used for circuit temperature control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202030202U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546148A (en) * | 2012-07-09 | 2014-01-29 | 日本电波工业株式会社 | Oven controlled crystal oscillator |
| CN110844282A (en) * | 2019-10-29 | 2020-02-28 | 徐州志欧机电设备有限公司 | Heat preservation device for electronic product in low-temperature environment |
-
2011
- 2011-01-31 CN CN2011200340541U patent/CN202030202U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103546148A (en) * | 2012-07-09 | 2014-01-29 | 日本电波工业株式会社 | Oven controlled crystal oscillator |
| CN103546148B (en) * | 2012-07-09 | 2017-10-10 | 日本电波工业株式会社 | The crystal oscillator of attached thermostat |
| CN110844282A (en) * | 2019-10-29 | 2020-02-28 | 徐州志欧机电设备有限公司 | Heat preservation device for electronic product in low-temperature environment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20140131 |