CN2804730Y - Thermoelectric colling or heating appts - Google Patents
Thermoelectric colling or heating appts Download PDFInfo
- Publication number
- CN2804730Y CN2804730Y CNU200520030493XU CN200520030493U CN2804730Y CN 2804730 Y CN2804730 Y CN 2804730Y CN U200520030493X U CNU200520030493X U CN U200520030493XU CN 200520030493 U CN200520030493 U CN 200520030493U CN 2804730 Y CN2804730 Y CN 2804730Y
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- Prior art keywords
- thermoelectric cooling
- thermoelectric
- time
- gate
- cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/025—Removal of heat
- F25B2321/0251—Removal of heat by a gas
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to an indirect refrigeration or heating device for liquid such as still water, etc. by using thermoelectricity. The device comprises a liquid container and a base, wherein a thermoelectric refrigeration component is arranged on the bottom or side of the liquid container, and a heat radiation mechanism is fixed on the other end surface matched with the thermoelectric refrigeration component. A time control circuit or a time control relay which controls a working power supply of the thermoelectric refrigeration component to open and close on time is arranged in a power supply channel of the thermoelectric refrigeration component. The thermoelectric refrigerator is arranged and fixed in the position under the liquid such as still water, etc. to be favourable for refrigeration or heating. At the time of refrigeration, the cold end surface contacts the still liquid directly or indirectly, the cold end surface freezes into ice in a short time, meanwhile, the electricity for a short time is cut off by an electronic time-control switch, and the ice floats upwards. The repetition forms cold/heat convection because the ice transfers the cold, and the refrigerating efficiency is higher. At the time of heating, only the direction of current is changed, and the still liquid is heated by the natural convection. The utility model has the advantages of simple structure, low cost and convenient generalization and implementation.
Description
One, technical field: this use is novel to relate to a kind of refrigeration, heat utensil, particularly relates to a kind of device that liquid such as stationary water are utilized the thermoelectric indirect refrigeration or heat.
Two, background technology: well-known, thermoelectric cooling assembly (Peltier effect device) has when the DC current forward and freezes, change the power supply supplier of electricity to, can change the characteristic that heats into from refrigeration, this device cost is low in addition, refrigeration, heating efficiency height, use the electric energy clean hygiene, applicability is strong, therefore makes it apply the concern that is subjected to each side, and its application is also more and more wide.
At present, three kinds of schemes are concluded in the application of thermoelectric cooling assembly in liquid such as stationary water, promptly are installed in top, middle part or the bottom of container.Former selection is arranged on container top when refrigeration, and at this moment, liquid such as stationary water are the working face of submergence thermoelectric cooling assembly quantitatively, to strengthen the temperature exchange area in the process of refrigerastion simultaneously as far as possible, otherwise be unfavorable for temperature exchange, influence liquid convection, prolong cooling time; Be lower than working face as liquid level, will formation temperature transmit the space, then more unfavorable.When heating, though the liquid level height, all effectively convection current.So this scheme must not have actual application value in the temperature exchange at liquid such as stationary waters.
When the thermoelectric cooling assembly is arranged on the bottom of liquid such as stationary water, the situation that liquid can't convection current then can appear in the process of refrigerastion, the temperature transmission is obstructed, the thermoelectric cooling assembly is the rapid and continuous operation owing to refrigeration in refrigeration, cause the surface serious icing, stop temperature exchange, carry out slowly thereby cryogenic temperature occurs, the vicious circle that temperature exchange progressively fails greatly reduces refrigerating efficiency.Therefore the top or the bottom that the thermoelectric cooling assembly are installed in liquid containers such as stationary water are improper.So there is the designer to adopt the way of compromise.It is installed in the middle part of inactive liquid container, though this measure than being installed in top or the bottom effect is more better, can only be that cut apart and controls on the boundary with thermoelectric cooling assembly cold junction face or temperature transfer surface also in the temperature exchange when refrigeration, top still is the blind area.Opposite when heating, stationary water or other liquid bottom become the blind area.
Also have and take stationary water is driven the mode of forcing temperature exchange, but this measure is unrealistic for low capacity stationary water or drinkable liquid, will increase installation cost, make the container intracavity structure become complicated, clean very inconvenient.In view of the foregoing, when former same device is failed to solve cold and heat source always and is one, the contradiction that in stationary water or other liquid container, is difficult for accurate location and installation, and can't obtain the optimum efficiency of taking into account cold and hot when exchange, thereby make inactive liquid refrigeration, heat dual-purpose apparatus and can't enter the practical stage always, its relevant product fails to put on market, even utilized this refrigeration source in individual device such as the water dispenser, also can only take the mounting means of compromising.
A kind of thermoelectric cooling device of Chinese patent ZL03277155.X contains heat radiation and pulls, and establishes the thermoelectric cooling assembly in the heat exchanger bottom, its improvements are, establish to support and pull and adjust bolt, make compressing member peak at heat exchanger, guarantee that cooling piece and heat transfer piece fit tightly, and improve cooling and warming efficient; A kind of electric refrigerating cup of ZL96237795.3 is made up of cup and bowl cover, and cooling fan is equipped with in the bowl cover inboard, is axially installed with radiator near cooling fan, inserts during use between interior cool-guiding device of cup and the radiator and puts a thermoelectric cooling assembly.This two exist more or less that above-mentioned heat radiation is smooth, problem is obstructed in the temperature transmission, influence heats or refrigerating efficiency.
Three, utility model content:
Technical problem to be solved in the utility model: at background technology thermoelectric cooling assembly to liquid indirect refrigerations such as stationary waters or heat the temperature transmission that exists in the application and be obstructed, the indivisible contradiction of cold and heat source, the thermoelectric cooling or the heating combined equipment of control circuit when proposing a kind of containing, by to intermittent of short duration the stopping power supply of the outer thermoelectric cooling assembly of container, the solution of intention the difficult problem of cold and hot exchange in liquid such as stationary water.
The technical scheme that the utility model adopted: a kind of thermoelectric cooling or heating combined equipment, contain liquid container and base, bottom surface or downside at liquid container are equipped with the thermoelectric cooling assembly, match with the other end end face of thermoelectric cooling assembly and to be fixed with cooling mechanism, in thermoelectric cooling assembly power path, contain control on time that electric cooling assembly working power opens and turn-off the time control circuit or the time controlled relay.
Described thermoelectric cooling or heating combined equipment, control circuit contains oscillating circuit and drives FET when described, oscillating circuit multivibrator output square wave connects the grid that drives FET, and the source electrode of FET or drain electrode are connected with the thermoelectric cooling assembly and distinguished between the positive and negative electrode of cut-in operation power supply.
Described thermoelectric cooling or heating combined equipment, the time control circuit multivibrator form by two not circuits, the output of first not gate connects the input of second not gate, draws resistance R from the input of first not gate, second not gate respectively
1, R
2The serial connection capacitor C
1The output that connects second not gate, the output termination of second not gate drives the grid of FET, draws mu balanced circuit from the V+ end of power supply the gate circuit working power is provided.
Described thermoelectric cooling or heating combined equipment, described cooling mechanism contains fin and fan, and fin is fixed on thermoelectric cooling assembly lower end surface, the fixing fan of air blast cooling on the base of described fin bottom.
Described thermoelectric cooling or heating combined equipment, described cooling mechanism can be the Forced water cooling cooling system, and interchanger is fixed on electric cooling assembly lower end surface, and the entery and delivery port of interchanger connects cooling water tank by pipeline, and water pump is installed in pipeline.
Described thermoelectric cooling or heating combined equipment are enclosed with insulation material or bad thermal conductive material layer around liquid container.
Positive beneficial effect of the present utility model:
1, described thermoelectric cooling device, be fixed on refrigeration blind area, liquid bottom such as stationary water or help heating the position, the cold junction face directly or indirectly contacts with inactive liquid during refrigeration, form ice cube at short notice, control the energising of following short time at the electronics time switch and end, the ice cube come-up, so repeatedly, transmit cold by ice cube, form cold and hot convection current, refrigerating efficiency is higher.Only need change the sense of current when heating,, realize inactive liquid is heated by free convection.
2, the utility model is simple in structure, and the control circuit cost is low, does not need to change product structure and only need change the sense of current, both can realize heating or the change of refrigeration modes, and is convenient and practical, is convenient to promotion and implementation.
Four, description of drawings:
Fig. 1: one of thermoelectric cooling apparatus structure schematic diagram
Fig. 2: two of thermoelectric cooling apparatus structure schematic diagram
Fig. 3: time control circuit theory diagrams
Five, the specific embodiment:
Embodiment one: referring to Fig. 1, thermoelectric cooling or heating combined equipment contain liquid container 1 and base 5, bottom surface shell near liquid container 1 is equipped with thermoelectric cooling assembly 2, bottom at thermoelectric cooling assembly 2 is fixed with cooling mechanism, the cooling mechanism of present embodiment is the air blast cooling cooling system, be fixed with fin 3 with the lower surface tight connecting of thermoelectric cooling assembly 2, be fixed with fan 4 on the base 5 of described fin 3 bottoms, fan 4 fixes by fixed mount 6 and base 5.Around liquid container 1, be enclosed with insulation material or bad thermal conductive material layer 8.9 is liquid among the figure, and 10 is ice cube.7 for controlling the time control circuit unit that electric cooling assembly working power is opened and turn-offed on time among the figure, the time control circuit 7 or time control electronic switch be fixed on base 5 housing walls.
Control circuit electrical schematic diagram when Fig. 3 is described, the time control circuit contain oscillating circuit and drive FET, two not circuits are formed multivibrator, and the output of the first not gate a connects the input of the second not gate b, draws resistance R from the input of the first not gate a, the second not gate b respectively
1, R
2The serial connection capacitor C
1The output that connects the second not gate b, the output termination of the second not gate b drives the grid of FET VT, the output square wave connects the grid that drives FET VT, and the source electrode of FET VT or drain electrode are connected with electric cooling assembly RF and distinguished between the positive and negative electrode of cut-in operation power supply.Draw diode V from the V+ end of power supply
D1And resistance R
3And voltage-stabiliser tube V
D2Form mu balanced circuit, voltage-stabiliser tube V
D2Two ends filter capacitor C in parallel
2, its voltage stabilizing output V
DDThe gate circuit working power is provided.Control circuit or electronic switch inserted thermoelectric cooling assembly power end when power supply passed through, and associated tracks is not drawn among the figure.
During refrigeration, the thermoelectric cooling assembly is connected power supply, its contacting container surface is a cold junction, in the extremely short time, promptly form ice cube, the thickness of ice cube can be controlled arbitrarily by the time control electronic switch, after ice cream forms, the time control circuit power cutoff on time, stop ice-making process, at this moment, the radiator in thermoelectric cooling assembly hot junction is because temperature is higher than the cold junction temperature of thermoelectric cooling assembly, and temperature inversion raises cold junction temperature and ice cream is broken away from it, and the ice cream after the disengaging is according to the rapid floating liquid level of self buoyancy, therebetween, the time control electronic switch is connected power supply once more, turn-offs behind the certain hour, repeats above-mentioned ice making and detach procedure.The ice cream of floating liquid level is complied with the cold and hot exchange that cold and hot convection type is finished inactive liquid, and very piece reaches the purpose of refrigeration.When needs heat, need not change product structure,, can realize by freezing to the conversion of the mode of heating by changing the power supply direction.
Embodiment two: referring to Fig. 2, and Fig. 3, number in the figure is identical with the identical representative meaning of embodiment one, does not repeat.Present embodiment and embodiment difference are: cooling mechanism is the Forced water cooling cooling system, the interchanger 14 of cooling mechanism is fixed on electric cooling assembly 2 lower end surfaces, the entery and delivery port of interchanger 14 connects cooling water tank 16 by pipeline, and water pump 15 is installed in pipeline.11 container cover among the figure for refrigeration or heating combined equipment, outer surface lays adiabator layer, and 12 is the passage on the container cover, and 13 are power supply connection lead.
Embodiment three, four: respectively referring to Fig. 1, Fig. 2, this two embodiment and embodiment one, two differences are: in thermoelectric cooling assembly power path, controlled relay when being provided with, the time controlled relay control connect thermoelectric cooling assembly working power, realize outage indirectly, ice cube can be floated, promote fluid temperature conduction and convection current.
Claims (7)
1. thermoelectric cooling or heating combined equipment, contain liquid container and base, bottom surface or downside at liquid container are equipped with the thermoelectric cooling assembly, match with the other end end face of thermoelectric cooling assembly and to be fixed with cooling mechanism, it is characterized in that: in thermoelectric cooling assembly power path, contain control on time that electric cooling assembly working power opens and turn-off the time control circuit or the time controlled relay.
2. thermoelectric cooling according to claim 1 or heating combined equipment, it is characterized in that: control circuit contains oscillating circuit and drives FET when described, oscillating circuit multivibrator output square wave connects the grid that drives FET, and the source electrode of FET or drain electrode are connected with the thermoelectric cooling assembly and distinguished between the positive and negative electrode of cut-in operation power supply.
3. thermoelectric cooling according to claim 2 or heating combined equipment, it is characterized in that: the time control circuit multivibrator form by two not circuits, the output of first not gate connects the input of second not gate, draws resistance R from the input of first not gate, second not gate respectively
1, R
2The serial connection capacitor C
1The output that connects second not gate, the output termination of second not gate drives the grid of FET, draws mu balanced circuit from the V+ end of power supply the gate circuit working power is provided.
4. according to claim 1～3 each described thermoelectric cooling or heating combined equipment, it is characterized in that: described cooling mechanism contains fin and fan, fin is fixed on thermoelectric cooling assembly lower end surface, the fixing fan of air blast cooling on the base of described fin bottom.
5. according to claim 1～3 each described thermoelectric cooling or heating combined equipment, it is characterized in that: described cooling mechanism is a Forced water cooling, interchanger is fixed on electric cooling assembly lower end surface, and the entery and delivery port of interchanger connects cooling water tank by pipeline, and water pump is installed in pipeline.
6. thermoelectric cooling according to claim 4 or heating combined equipment is characterized in that: be enclosed with insulation material or bad thermal conductive material layer around liquid container.
7. thermoelectric cooling according to claim 5 or heating combined equipment is characterized in that: be enclosed with adiabator layer or bad thermal conductive material layer around liquid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520030493XU CN2804730Y (en) | 2005-04-19 | 2005-04-19 | Thermoelectric colling or heating appts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200520030493XU CN2804730Y (en) | 2005-04-19 | 2005-04-19 | Thermoelectric colling or heating appts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2804730Y true CN2804730Y (en) | 2006-08-09 |
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ID=36910019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200520030493XU Expired - Fee Related CN2804730Y (en) | 2005-04-19 | 2005-04-19 | Thermoelectric colling or heating appts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2804730Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620466A (en) * | 2011-01-31 | 2012-08-01 | 株式会社丰田自动织机 | Air-conditioning core |
| TWI649528B (en) * | 2017-03-13 | 2019-02-01 | 謝基生 | Diffusion method of small area cold surface and its flat cold plate |
-
2005
- 2005-04-19 CN CNU200520030493XU patent/CN2804730Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620466A (en) * | 2011-01-31 | 2012-08-01 | 株式会社丰田自动织机 | Air-conditioning core |
| TWI649528B (en) * | 2017-03-13 | 2019-02-01 | 謝基生 | Diffusion method of small area cold surface and its flat cold plate |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |