CN201985430U - Thermoelectric refrigerating system - Google Patents
Thermoelectric refrigerating system Download PDFInfo
- Publication number
- CN201985430U CN201985430U CN2011200692019U CN201120069201U CN201985430U CN 201985430 U CN201985430 U CN 201985430U CN 2011200692019 U CN2011200692019 U CN 2011200692019U CN 201120069201 U CN201120069201 U CN 201120069201U CN 201985430 U CN201985430 U CN 201985430U
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- refrigerating
- chip
- refrigerating chip
- radiator
- power supply
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Abstract
The present patent discloses a thermoelectric refrigerating system, which belongs to the thermoelectric refrigerating technology field. The system aims to solve the problem that in the prior refrigerator, the property of thermoelectric refrigerating chip is not considered to realize an optimal control of temperature. The system comprises a blower fan, a heating body, a radiator and a refrigerating chip arranged between the heating body and the radiator. The blower fan is arranged in opposite with the radiator. A heating body power supply connected with the heating body and a refrigerating chip power supply connected with the refrigerating chip is also included in the system, and the refrigerating chip and the refrigerating power supply are all connected with a one-chip microcomputer control circuit in a signal manner. The system also comprises a temperature inductor which is respectively connected with the heating body and the refrigerating chip in a signal manner, and the temperature inductor is connected with the one-chip microcomputer control circuit in a signal manner. The device is suitable for aerospace industry, medicine biological lab tests, military and civil industry, etc. Moreover, the device is not only used for manufacturing portable refrigerators, insulation cans and cold and hot water dispensers, but also used in the heat radiation of electronic devices.
Description
Technical field
The utility model belongs to the thermoelectric cooling technical field, relates in particular to a kind of thermoelectric cooling system.
Background technology
Thermoelectric cooling chip (Thermoelectric Cooling Module, i.e. TEC cooling piece)
Also be the conductor refrigeration sheet, it is made up of two potsherds, and the semi-conducting material (bismuth telluride) of N type and P type is arranged in the middle of it, and this semiconductor element is to link with the series connection form to form on circuit.After connecting DC power supply, electronics is set out by negative pole, through the P N-type semiconductor N, absorbs heat at this, arrived the N N-type semiconductor N, again heat has been emitted, every through a NP module, heat is just arranged by other, cause the temperature difference, thereby form cold and hot end while being sent to.Also can adjust cooling power when in addition, changing current strength.The thermoelectric cooling chip volume is little and have high relatively refrigerating capacity, is specially adapted to the refrigeration of the confined space, its Maintenance free, noiselessness, nondirectional restriction, and owing to do not use cold-producing medium, therefore do not have the environmental protection public hazards and the life-span long.
The characteristic of thermoelectric cooling chip is that the big more transmission heat of the temperature difference on refrigerating chip two sides is fast more, and promptly refrigerating efficiency is high more, if the temperature difference on two sides is very little, even add enough electric currents in the refrigerating chip, the efficient that refrigerating chip heat is transmitted is also very low.In addition, because of the full power of refrigerating chip own is far longer than heater power, the heat of the full power of refrigerating chip own will distribute, and causes actual refrigerating efficiency just lower like this.
At present, adopt in the refrigerator of thermoelectric cooling chip, realize that temperature controlled mode mainly contains three kinds:, directly add a fixed voltage to refrigerating chip one, according to temperature signal; Two, within the specific limits, regulate the refrigeration electric current of refrigerating chip automatically; Three, automatic control and adjustment is added in the frequency of refrigerating chip both end voltage, and the realization temperature is controlled automatically.And temperature controlled defective is all not realize the Optimal Control of temperature at the characteristic of refrigerating chip in the above-mentioned refrigerator.
Summary of the invention
At the optimally-controlled deficiency that realizes temperature in the existing refrigerator at the characteristic of thermoelectric cooling chip, the purpose of this utility model provides a kind of characteristic according to refrigerating chip and realizes temperature controlled thermoelectric cooling system.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises blower fan, heater, radiator and the refrigerating chip between described heater and described radiator, described blower fan and described radiator are oppositely arranged, it also comprises the heater power supply that is connected with described heater, the refrigerating chip power supply that is connected with described refrigerating chip, described refrigerating chip all is connected with the single chip machine controlling circuit signal with described refrigerating chip power supply.
Further, it also comprises a temperature inductor, and described temperature inductor is connected with described refrigerating chip signal with described heater respectively, and described temperature inductor is connected with described single chip machine controlling circuit signal.
The effect of this patent is: single chip machine controlling circuit is according to the maximum current of the temperature gap curve limit refrigerating chip of heater and refrigerating chip in the utility model, thereby the heat that makes heater and refrigerating chip produce can conduct radiation be gone out, and then reaches energy balance.Reach in blower fan wind speed, heater, radiator and ambient temperature under the condition of energy balance, even under the refrigerating system of the present utility model situation that the heater heat is big at short notice, it is too high and produce to report to the police the heater temperature value also can not occur, thereby realizes utilizing the Optimal Control mode of refrigerating chip refrigeration.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples;
Fig. 1 is that the position of refrigerating chip, heater and radiator in the utility model concerns schematic diagram;
Fig. 2 is the framework schematic diagram one of refrigerating system of the present utility model;
Fig. 3 is the framework schematic diagram two of refrigerating system of the present utility model;
Fig. 4 is the temperature gap and the restriction current value graph of relation (abscissa is represented temperature gap, and ordinate represents to limit electric current) of refrigerating chip;
The number in the figure explanation:
1-heater 2-refrigerating chip 3-radiator 4-blower fan
5-mains electricity input end 6-heater power supply 7-refrigerating chip power supply
8-temperature inductor 9-single chip machine controlling circuit
Embodiment
In conjunction with Fig. 1 to Fig. 4 a kind of thermoelectric cooling of the present utility model system is described, heater 1(present embodiment middle finger laser) is arranged on a side of refrigerating chip 2 chill surfaces, radiator 3 is arranged on the opposite side of refrigerating chip 2, the three is closely contact all, and refrigerating chip 2 all scribbles Heat Conduction Material with the contact-making surface of heater 1 and radiator 3.Heater 1 continuous heating power is 45W to the maximum, and it is 180W that the injection refrigeration of refrigerating chip 2 needs maximum power, and heater 1 average caloric value is less than the heat dissipation capacity of radiator 3, and ambient temperature is 25 ℃, and discontinuity generation heat peak value is not more than 2 times of mean value.Population mean power according to heater 1, selection is greater than the refrigerating chip 2 of refrigerating capacity, power 60W as caloric value, refrigerating chip 2 heat radiation powers are preferably more than the 100W, select suitable refrigerating chip 2 according to the practical application size dimension, according to the maximum current and the magnitude of voltage of refrigerating chip 2 needs, select the current control type switching power supply greater than output current and magnitude of voltage again, refrigerating chip 2 can be by the multi-disc serial or parallel connection.
When ambient temperature and the timing of blower fan 4 rotating speed homogeneous, heater power supply 6 and refrigerating chip power supply 7 are inserted in mains electricity input end 5, the heat of heater 1 is transmitted on the radiator 3 fast by refrigerating chip 2, and blower fan 4 is dispersed into the heat of radiator 3 in the air.Simultaneously, the temperature signal of heater 1 and radiator 3 is all passed to single chip machine controlling circuit 9 via temperature inductor 8, single-chip microcomputer obtains the temperature gap of T2-T1, and (T1 is the temperature value of heater 1, T2 is the temperature value of radiator 3), single chip machine controlling circuit 9 limits the maximum current (temperature gap and restriction current value relation curve such as Fig. 4) of refrigerating chip 2 according to T2-T1 temperature gap curve negotiating refrigerating chip power supply 7, thereby the heat that causes heater 1 and refrigerating chip 2 to produce can conduct radiation reach energy balance, can not produce vicious circle.Under the certain condition of radiator 3, ambient temperature and blower fan 4 wind speed, if refrigerating chip 2 electric currents are added to maximum, the generation heat strengthens, the heat that radiator 3 need distribute is also big, at this moment, suitably the electric current of regulating refrigerating chip 2 just can be taken away the heat of heater 1 faster and better, so adopt refrigerating system of the present utility model can obtain good temperature control.
Those skilled in the art will recognize that; above-mentioned embodiment is exemplary; be in order to make those skilled in the art can better understand this patent content; should not be construed as is restriction to this patent protection range; change or modify so long as disclose spiritual any being equal to of being done, all fall into this patent protection range according to this patent.
Claims (2)
1. thermoelectric cooling system, comprise blower fan, heater, radiator and the refrigerating chip between described heater and described radiator, described blower fan and described radiator are oppositely arranged, it is characterized in that: it also comprises the heater power supply that is connected with described heater, the refrigerating chip power supply that is connected with described refrigerating chip, described refrigerating chip all is connected with the single chip machine controlling circuit signal with described refrigerating chip power supply.
2. thermoelectric cooling according to claim 1 system, it is characterized in that: it also comprises a temperature inductor, described temperature inductor is connected with described refrigerating chip signal with described heater respectively, and described temperature inductor is connected with described single chip machine controlling circuit signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200692019U CN201985430U (en) | 2011-03-16 | 2011-03-16 | Thermoelectric refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200692019U CN201985430U (en) | 2011-03-16 | 2011-03-16 | Thermoelectric refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985430U true CN201985430U (en) | 2011-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200692019U Expired - Lifetime CN201985430U (en) | 2011-03-16 | 2011-03-16 | Thermoelectric refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985430U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520744A (en) * | 2011-12-12 | 2012-06-27 | 合肥聚能新能源科技有限公司 | Thermostatic control system of photovoltaic constant temperature current transformer |
| CN104792060A (en) * | 2015-02-13 | 2015-07-22 | 美的集团武汉制冷设备有限公司 | Heat dissipation device, motor and air conditioner |
| CN106415240A (en) * | 2014-02-18 | 2017-02-15 | Avl排放测试系统有限责任公司 | Device and method for determining the concentration of at least one gas in a sample gas flow by means of infrared absorption spectroscopy |
| CN108524086A (en) * | 2018-04-11 | 2018-09-14 | 深圳可思美科技有限公司 | Facial cosmetic refrigeration system, method and apparatus |
-
2011
- 2011-03-16 CN CN2011200692019U patent/CN201985430U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520744A (en) * | 2011-12-12 | 2012-06-27 | 合肥聚能新能源科技有限公司 | Thermostatic control system of photovoltaic constant temperature current transformer |
| CN106415240A (en) * | 2014-02-18 | 2017-02-15 | Avl排放测试系统有限责任公司 | Device and method for determining the concentration of at least one gas in a sample gas flow by means of infrared absorption spectroscopy |
| CN104792060A (en) * | 2015-02-13 | 2015-07-22 | 美的集团武汉制冷设备有限公司 | Heat dissipation device, motor and air conditioner |
| CN104792060B (en) * | 2015-02-13 | 2017-09-19 | 美的集团武汉制冷设备有限公司 | Heat abstractor, motor and air conditioner |
| CN108524086A (en) * | 2018-04-11 | 2018-09-14 | 深圳可思美科技有限公司 | Facial cosmetic refrigeration system, method and apparatus |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |