CN203261268U - An apparatus for utilizing waste heat of an electric cooling appliance - Google Patents
An apparatus for utilizing waste heat of an electric cooling appliance Download PDFInfo
- Publication number
- CN203261268U CN203261268U CN 201320305154 CN201320305154U CN203261268U CN 203261268 U CN203261268 U CN 203261268U CN 201320305154 CN201320305154 CN 201320305154 CN 201320305154 U CN201320305154 U CN 201320305154U CN 203261268 U CN203261268 U CN 203261268U
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- converter
- cooling appliance
- cooking appliance
- waste heat
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Abstract
The utility model discloses an apparatus for utilizing waste heat of an electric cooling appliance. The apparatus comprises an electric cooling appliance body which is connected with an electrical network and a DC/AC converter. The DC/AC converter is connected with a DC/DC converter. The DC/DC converter is connected with semiconductor thermoelectric generation modules which are fixed at an outer side of the electric cooling appliance. Cold ends are directed to the outside to contact air. When the electric cooling appliance works, low-temperature waste heat radiated by the cooling appliance are transmitted to hot ends of the semiconductor thermoelectric generation modules to raise the temperatures of the hot ends, and the temperatures of the cold ends are close to an ambient temperature, and thus a temperature difference is formed and power is generated. Then, the DC/DC converter and the DC/AC converter are used to convert direct-current electric energy into alternating-current electric energy to supplement the electrical network to supply power for the electric cooling appliance. The apparatus can effectively absorb ultralow-temperature waste heat radiated by the electric cooling appliance in operation, converts the waste heat into electric energy to supplement the electrical network to supply power, effectively reduces thermal pollution of the electric cooling appliance, improves the energy utilization rate and is energy-saving and high-efficiency.
Description
Technical field
The utility model relates to energy-saving field, relates in particular to the electric cooking appliance residual heat using device in a kind of low temperature exhaust heat recycling field.
Background technology
Along with the development of society, living standards of the people improve gradually, and the use of household electric cooking utensils is also more and more, and these electric cooking appliances generally convert electrical energy into heat energy for boiling, but the part heat is not used effectively, and the shell radiation is dispersed in the air again.These heats are because temperature between 60 ℃～100 ℃, belongs to the ultralow temperature waste heat, and the past does not obtain paying attention to, and only can cause the rising of kitchen temperature, do not have other effects.And the use of electric cooking appliance is more, and also more to the waste of the energy, the thermal pollution of ultralow temperature waste heat is more serious.
Semiconductor temperature differential generating utilizes semi-conductor thermoelectric material to make,, movement-less part little, lightweight with its volume, life-span length, conveniently moving, reliability height, noiselessness, the plurality of advantages such as pollution-free are widely applied at each practise areas such as military, medical treatment, scientific research and industrial production.And the semiconductor temperature differential generating technology is a kind of waste heat that rationally utilizes, and converts thereof into the effective means of electric energy.
The utility model content
The utility model purpose: the purpose of this utility model is in order to solve deficiency of the prior art, to provide a kind of waste heat that electric cooking appliance is distributed to convert electric energy to, being used for the device that electrical network electric energy supplementary power cooker is used.
Technical scheme: a kind of electric cooking appliance residual heat using device described in the utility model, comprise the electric cooking appliance body, described electric cooking appliance body is connected with electrical network, described electric cooking appliance body also is connected with the DC/AC converter, described DC/AC converter is connected with the DC/DC converter, described DC/DC converter is connected with semi-conductor thermo-electric generation module, and described semi-conductor thermo-electric generation module fixedly is located at the electric cooking appliance outside.
As preferably, the cold junction of described semi-conductor thermo-electric generation module is located at air one side.
As optimization, described electric cooking appliance comprises electric rice cooker, electric pressure cooker, electric caldron, electromagnetic oven.
When electric cooking appliance was worked, the low temperature exhaust heat that cooker distributes acted on the hot junction of semi-conductor thermo-electric generation module, its temperature is raise, and its cold junction temperature formed the temperature difference and generating near room temperature.A few chip semiconductor temperature-difference power generation modules are connected to improve its output voltage.Described semi-conductor thermo-electric generation module monolithic output voltage is lower, but electric current is larger, can connect and use in order to raise its voltage, does not meet the requirement of DC-AC converter input voltage for preventing this voltage, adopts the DC-DC converter first its voltage to be adjusted to desired value.The semi-conductor thermo-electric generation module of series connection sends direct current energy through the DC-DC converter, and voltage is adjusted to the magnitude of voltage that is fit to the input of DC-AC converter, by the DC-AC converter direct current energy is transformed to AC energy again and for replenishing the electrical network electric energy electric cooking appliance is powered.
Beneficial effect: the ultralow temperature waste heat that the utility model distributes in the time of effectively absorbing electric cooking appliance work, be converted into electric energy and replenish mains supply, effectively reduce the thermal pollution of electric cooking appliance, improve energy utilization rate, efficient energy-saving.
Description of drawings
Fig. 1 is the utility model mounting structure schematic diagram.
Fig. 2 is semi-conductor thermo-electric generation module operation principle schematic diagram.
Fig. 3 is the utility model electrical installation theory diagram.
Embodiment
Mounting structure schematic diagram as shown in Figure 1, comprise electric cooking appliance power line 1, electric cooking appliance 6, semi-conductor thermo-electric generation module 5, semi-conductor thermo-electric generation module electric energy positive terminal output line 3, negative pole end output line 4, semi-conductor thermo-electric generation module series conductor 7, conversion process module 2, conversion process module output line 10; Semi-conductor thermo-electric generation module 5 comprises cathode output end 8 and cathode output end 9.Semi-conductor thermo-electric generation module 5 has a plurality of, and its hot junction is fixed on described electric cooking appliance 6 outsides.Size according to semi-conductor thermo-electric generation module 5 output voltages, selection is connected several, improves output voltage, and is again that the semi-conductor thermo-electric generation module group of series connection is in parallel, by described positive terminal output line 3, negative pole end output line 4 is connected in the described conversion process module 2.Conversion process module 2 comprises DC-DC converter and DC-AC converter, and the electric energy of processing through described conversion process module 2 is in parallel to electric cooking appliance 6 power supplies with described electric cooking appliance power line 1 again.
Fig. 2 is semi-conductor thermo-electric generation module operation principle schematic diagram.Semi-conductor thermo-electric generation module comprises hot junction 23, P type semiconductor 22, N type semiconductor 24, the cold junction 21 that is connected with described P type semiconductor 22, the cold junction 25 that links to each other with described N type semiconductor 24.In conjunction with Fig. 1 as can be known, described semi-conductor thermo-electric generation module hot junction 23 is fixed on the electric cooking appliance shell, and when electric cooking appliance was worked, skin temperature reached 60 ℃～100 ℃, and described semi-conductor thermo-electric generation module cold junction 21,25 generally is no more than 40 ℃ then near room temperature.This moment described P type semiconductor 22 and the N type semiconductor 24 portion temperature height that links to each other with the hot junction, the portion temperature that links to each other with cold junction is low, because the thermal excitation effect of temperature end is stronger, the hole of this end and electron concentration are higher than low-temperature end, under the driving of this carrier concentration gradient, hole and electronics spread to low-temperature end, thereby concentrated a large amount of holes at the cold junction 21 that described P type semiconductor 22 connects, a large amount of free electrons have been concentrated on the cold junction 25 that described N type semiconductor 24 links to each other, form thus electrical potential difference, realized utilizing the electric cooking appliance warm-up power generation.
Be illustrated in figure 3 as the utility model electrical installation theory diagram.Comprise the electric cooking appliance body, the electric cooking appliance body is connected with electrical network, and the electric cooking appliance body also is connected with the DC/AC converter, and the DC/AC converter is connected with the DC/DC converter, the DC/DC converter is connected with semi-conductor thermo-electric generation module, and semi-conductor thermo-electric generation module fixedly is located at the electric cooking appliance outside.Semi-conductor thermo-electric generation module absorbs the preheating that electric cooking appliance sends, and formation temperature is poor and send direct current energy between hot junction and cold junction, and this electric energy is sent into the DC/DC converter.The DC/DC converter is adjusted into the direct current energy that voltage conforms DC/AC converter input voltage requires with the electric energy of input, sends in the DC/AC converter again.The DC/AC converter is converted to the direct current energy of input and the same width of cloth of electrical network electric power signal, homophase, same electric power signal frequently, in parallel with the electrical network electric energy, drives electric cooking appliance work.
The above only is preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. electric cooking appliance residual heat using device, comprise the electric cooking appliance body, described electric cooking appliance body is connected with electrical network, it is characterized in that: described electric cooking appliance body also is connected with the DC/AC converter, described DC/AC converter is connected with the DC/DC converter, described DC/DC converter is connected with semi-conductor thermo-electric generation module, and described semi-conductor thermo-electric generation module fixedly is located at the electric cooking appliance outside.
2. a kind of electric cooking appliance residual heat using device according to claim 1, it is characterized in that: the cold junction of described semi-conductor thermo-electric generation module is located at air one side.
3. a kind of electric cooking appliance residual heat using device according to claim 1, it is characterized in that: described electric cooking appliance comprises electric rice cooker, electric pressure cooker, electric caldron, electromagnetic oven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305154 CN203261268U (en) | 2013-05-30 | 2013-05-30 | An apparatus for utilizing waste heat of an electric cooling appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320305154 CN203261268U (en) | 2013-05-30 | 2013-05-30 | An apparatus for utilizing waste heat of an electric cooling appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261268U true CN203261268U (en) | 2013-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320305154 Expired - Fee Related CN203261268U (en) | 2013-05-30 | 2013-05-30 | An apparatus for utilizing waste heat of an electric cooling appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610398A (en) * | 2013-11-25 | 2014-03-05 | 北京工业大学 | Electric cooker generating electricity through temperature difference |
| CN111503887A (en) * | 2020-04-22 | 2020-08-07 | 兖矿集团有限公司 | Power supply system of hot air stove and hot air stove |
-
2013
- 2013-05-30 CN CN 201320305154 patent/CN203261268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103610398A (en) * | 2013-11-25 | 2014-03-05 | 北京工业大学 | Electric cooker generating electricity through temperature difference |
| CN111503887A (en) * | 2020-04-22 | 2020-08-07 | 兖矿集团有限公司 | Power supply system of hot air stove and hot air stove |
| CN111503887B (en) * | 2020-04-22 | 2022-07-12 | 兖矿集团有限公司 | Power supply system of hot air stove and hot air stove |
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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: 20131030 Termination date: 20140530 |