CN100419356C - Ultrasonic wave automatic defrosting device for refrigerator - Google Patents

Ultrasonic wave automatic defrosting device for refrigerator Download PDF

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Publication number
CN100419356C
CN100419356C CNB2006100288921A CN200610028892A CN100419356C CN 100419356 C CN100419356 C CN 100419356C CN B2006100288921 A CNB2006100288921 A CN B2006100288921A CN 200610028892 A CN200610028892 A CN 200610028892A CN 100419356 C CN100419356 C CN 100419356C
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China
Prior art keywords
refrigerator
frost
evaporator
evaporimeter
ultrasonic
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Expired - Fee Related
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CNB2006100288921A
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Chinese (zh)
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CN1888764A (en
Inventor
陆志
姚晔
连之伟
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Priority to CNB2006100288921A priority Critical patent/CN100419356C/en
Publication of CN1888764A publication Critical patent/CN1888764A/en
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Publication of CN100419356C publication Critical patent/CN100419356C/en
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Abstract

An ultrasonic automatic defrost equipment for refrigerator in the refrigeration technology field, including the ultrasonic producer, the ultrasonic energy transducer and the frost-layer inductor. The ultrasonic energy transducer sticks near one side of the cold-producing medium pipeline, the ultrasonic producer fixes beside the ultrasonic energy transducer and cannot touch with the evaporator, the frost-layer inductor sets near the evaporator in the freezing chamber of the refrigerator and consist of two probes, one is connected with the evaporator, there is a gap between the other probe and the evaporator. The invention is: at the condition of maintaining the temperature of the freezing chamber, removes the frost layer of the evaporator surface; it not only improves the heat exchange efficiency of the evaporator and ensures the refrigeration capacity at the higher level because it defrosts when the frost-layer is thin, but also ensures the freezing quality of the food by maintaining the temperature of the freezing chamber during the defrost process.

Description

Ultrasonic wave automatic defrosting device for refrigerator
Technical field
The present invention relates to a kind of device of refrigeration technology field, particularly a kind of ultrasonic wave automatic defrosting device for refrigerator.
Background technology
Refrigerator in use, food and airborne moisture can be formed the frost layer at evaporator surface in the case.Because the thermal conductivity factor of frost is very little, when the frost layer is blocked up, will seriously hinder the heat exchange of evaporimeter, thus the refrigerating capacity of appreciable impact refrigerator.Therefore, the frost layer reaches certain thickness when the surface of evaporimeter, just needs defrosting in time (existing method defrosts when the frost layer reaches about 5mm).
Find that through the literature search to prior art in the prior art, application number is 200510093253, name is called the patent of invention of refrigerator, utilizes electric heater heating frost layer, impels white melting layer.This class technology is most widely used, and can play the effect of defrosting, and temperature raises in the refrigerator but defrost process can cause, influence the storage quality of food, and defrosting the time makes that temperature raises in the refrigerator, reduce temperature after the defrosting again, waste electric energy, moreover had inflammable and explosive problem to exist.Application number is 200420051976, and name is called the refrigerator invention patent with four-way valve defrosting, the cross valve that is provided with between compressor, condenser, evaporimeter and reservoir, when needing defrost, with the cross valve commutation, the change evaporimeter is condenser, to frost layer heat radiation defrost.Though this technology can reach the effect of defrosting, and avoid heating the inflammable and explosive problem of defrost, also caused temperature rising in the refrigerator unavoidably, influenced the storage quality of food, the waste electric energy.Application number is 200510021442, and name is called the patent of invention of freezer chamber of refrigerator Defrost method, step and device thereof, utilizes microwave energy heating frost layer to make it to melt.This technology need be taken out frozen goods when defrosting, has added trouble to the user.And still existence makes refrigerator temperature raise, and influences the food storage quality, the problem of waste electric energy.In sum, said method not only takes electricity, and can inevitably cause the rising of temperature in the refrigerator, and the food of storage in the refrigerating chamber is melted with the frost layer, influences the storage quality of food.
Summary of the invention
Deficiency and defective for overcoming prior art the invention provides a kind of ultrasonic wave automatic defrosting device for refrigerator.The present invention utilizes the ultrasonic vibration effect, the white pull-up of evaporator surface is fallen, thereby under the cryogenic temperature of in keeping freezer compartment of refrigerator, setting, remove the frost layer of evaporator surface, avoid frozen goods when defrosting, to melt, thereby at utmost kept the quality of foodstuff storing.
The present invention is achieved through the following technical solutions, and the present invention includes supersonic generator, ultrasonic transducer, frost layer inductor.Ultrasonic transducer sticks at the side of evaporimeter by refrigerant line.Supersonic generator places by the ultrasonic transducer, but does not contact with evaporimeter, and is gapped between the two.Frost layer inductor is installed in the freezer compartment of refrigerator near the evaporimeter place.
Frost layer inductor is made up of two probes, and first probe is connected with evaporimeter, and second probe and evaporimeter leave certain distance (frost thickness when this distance is defrosting).When the frost layer reached certain thickness, the frost layer touched second probe.At this moment connect the supersonic generator power supply, ultrasonic transducer work.The ultrasonic wave that produces is propagated in evaporimeter, and by its mechanical oscillation effect white pull-up is fallen.
Beneficial effect of the present invention: ultrasonic wave automatic defrosting device for refrigerator of the present invention, utilize hyperacoustic mechanical oscillation effect, the white pull-up on the evaporimeter is fallen.Owing to just defrost when thin (about 1mm), thereby improved the heat exchanger effectiveness of evaporimeter, guaranteed that the refrigerating capacity of refrigerator remains on higher level at frost layer.And, keep the refrigerating chamber cryogenic temperature in the process of defrosting, guaranteed the freezing quality of food.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
As shown in Figure 1, the present invention includes supersonic generator 1, ultrasonic transducer 2, frost layer inductor 3.Ultrasonic transducer 2 sticks at the side of evaporimeter 6 by refrigerant line.Supersonic generator 1 places ultrasonic transducer 2 other.Frost layer inductor 3 is installed in the freezer compartment of refrigerator near evaporimeter 6 places.
Frost layer inductor 3 is made up of two probes, and it is gapped with evaporimeter that first probe 4 is connected to evaporimeter 6, the second probes 5, frost thickness when this gap is defrosting.When the frost layer reached certain thickness, the frost layer touched second probe 5.At this moment connect supersonic generator 1 power supply, ultrasonic transducer 2 work.Ultrasonic transducer 2 converts electric energy to acoustic energy, and the ultrasonic wave of generation is propagated in evaporimeter 6.Because hyperacoustic mechanical oscillation effect, the white pull-up on the evaporimeter falls.Defrosting a period of time, and this moment, frost layer inductor responded to less than the frost layer, and defrosting finishes.
When the frost layer reaches certain thickness on the evaporimeter 6, just repeat this process.

Claims (3)

1. ultrasonic wave automatic defrosting device for refrigerator, comprise supersonic generator (1), ultrasonic transducer (2), frost layer inductor (3), it is characterized in that: wherein frost layer inductor (3) comprises first probe (4) and second probe (5), supersonic generator (1) places ultrasonic transducer (2) other, frost layer inductor (3) is installed in the freezer compartment of refrigerator and locates near evaporimeter (6), first probe (4) is connected to evaporimeter (6), second probe (5) is gapped with evaporimeter (6), and ultrasonic transducer (2) sticks at the side of evaporimeter (6) by refrigerant line.
2. ultrasonic wave automatic defrosting device for refrigerator according to claim 1 is characterized in that: supersonic generator (1) places ultrasonic transducer (2) other, but does not contact with evaporimeter (6).
3. ultrasonic wave automatic defrosting device for refrigerator according to claim 1 is characterized in that: second visits the gap of (5) and evaporimeter (6), frost thickness when its width is defrosting.
CNB2006100288921A 2006-07-13 2006-07-13 Ultrasonic wave automatic defrosting device for refrigerator Expired - Fee Related CN100419356C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100288921A CN100419356C (en) 2006-07-13 2006-07-13 Ultrasonic wave automatic defrosting device for refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006100288921A CN100419356C (en) 2006-07-13 2006-07-13 Ultrasonic wave automatic defrosting device for refrigerator

Publications (2)

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CN1888764A CN1888764A (en) 2007-01-03
CN100419356C true CN100419356C (en) 2008-09-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2783581C2 (en) * 2021-05-03 2022-11-14 Валерия Александровна Орлова Method for recuperation of heat of removed airflow

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102252474B (en) * 2011-05-25 2013-05-01 河南新飞电器有限公司 Device for inhibiting frost formation of evaporimeter by supersonic vibration
CN102519184A (en) * 2011-12-04 2012-06-27 苏州方暨圆节能科技有限公司 Energy-saving defrosting structure of air conditioner
CN102435027B (en) * 2011-12-06 2014-07-23 西安交通大学 Air source heat pump ultrasonic resonance defrosting method based on intermittent loading work
CN105674645A (en) * 2016-04-14 2016-06-15 天津商业大学 Rapid defrosting and draining heat pump outdoor unit mechanism
CN105890050A (en) * 2016-06-03 2016-08-24 南京师范大学 Internal descaling and external defrosting novel air conditioner applying ultrasonic oscillators
CN105823293A (en) * 2016-06-05 2016-08-03 山东商业职业技术学院 Microwave directional defrosting system of refrigeration-house evaporator exhaust pipe
CN106766580A (en) * 2016-12-30 2017-05-31 广州芯康医疗科技有限公司 Defroster, ultralow temperature storage box and its Defrost method
CN106595191A (en) * 2017-02-10 2017-04-26 南通四方冷链装备股份有限公司 Automatic ultrasonic defrosting device
CN106721903A (en) * 2017-02-16 2017-05-31 湖南嘉盛保鲜科技有限公司 A kind of application of ultrasonic wave thawing equipment, method and its defrost of opening ice
CN110377073B (en) * 2019-07-17 2021-03-30 珠海格力电器股份有限公司 Temperature controller control system
CN111351309B (en) * 2020-03-11 2022-04-15 合肥美的电冰箱有限公司 Refrigeration equipment and fault detection method, control method and processing device thereof
CN113654282B (en) * 2021-09-01 2024-03-19 深圳市派沃新能源科技股份有限公司 Defrosting system of air source heat pump and defrosting judgment method

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN87207535U (en) * 1987-04-29 1987-12-31 王紫来 Frost thickness capacitance sensor used in a refrigerating system
JPH11201593A (en) * 1998-01-16 1999-07-30 Toshiba Corp Refrigeration cycle device and air conditioner
KR20040065807A (en) * 2003-01-16 2004-07-23 삼성전자주식회사 Refrigerator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87207535U (en) * 1987-04-29 1987-12-31 王紫来 Frost thickness capacitance sensor used in a refrigerating system
JPH11201593A (en) * 1998-01-16 1999-07-30 Toshiba Corp Refrigeration cycle device and air conditioner
KR20040065807A (en) * 2003-01-16 2004-07-23 삼성전자주식회사 Refrigerator

Non-Patent Citations (2)

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Title
结霜检测传感器——FD传感器. 冯乙引.世界电子元器件,第7期. 2000
结霜检测传感器——FD传感器. 冯乙引.世界电子元器件,第7期. 2000 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2783581C2 (en) * 2021-05-03 2022-11-14 Валерия Александровна Орлова Method for recuperation of heat of removed airflow

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Granted publication date: 20080917

Termination date: 20110713