CN203116386U - Intelligent frost controller - Google Patents

Intelligent frost controller Download PDF

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Publication number
CN203116386U
CN203116386U CN 201320045348 CN201320045348U CN203116386U CN 203116386 U CN203116386 U CN 203116386U CN 201320045348 CN201320045348 CN 201320045348 CN 201320045348 U CN201320045348 U CN 201320045348U CN 203116386 U CN203116386 U CN 203116386U
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CN
China
Prior art keywords
electrode
high potential
low position
controller
defrost
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Withdrawn - After Issue
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CN 201320045348
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Chinese (zh)
Inventor
刘兴华
申江
董小勇
张祎伟
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Tianjin University of Commerce
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Tianjin University of Commerce
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Priority to CN 201320045348 priority Critical patent/CN203116386U/en
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Publication of CN203116386U publication Critical patent/CN203116386U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses an intelligent frost controller which can perform automatic defrosting according to an actual frost layer thickness in a using process. The intelligent frost controller comprises a power supply, a high-level electrode, a low-level electrode, a micro electric signal detecting, receiving and amplifying device and a defrosting controller. The high-level electrode and the low-level electrode are used for detection of the frost layer thickness. The output end of the high-level electrode and the output end of the low-level electrode are connected with micro electric signal input ends of the micro electric signal detecting, receiving and amplifying device respectively. The output end of the micro electric signal detecting, receiving and amplifying device is connected with the input end of the defrosting controller. The output end of the defrosting controller is connected with a defrosting implementing device. The intelligent frost controller detects the frost layer thickness of a refrigerating system in an intelligent mode through electrical signals, and therefore automatic and intelligent starting and stopping of defrosting of the refrigerating system is realized, the influence on the refrigerating system and an environment temperature field due to bad starting of the defrosting is lowered, the reliability of the refrigerating system is increased, the efficiency of the refrigerating system is improved, and energy sources are saved.

Description

A kind of intelligent defrosting controller
Technical field
The utility model relates to refrigeration technology field, particularly relates to a kind of intelligent defrosting controller.
Background technology
When the evaporating temperature of refrigeration system is lower than 0 ℃, the easy frosting of evaporator surface, between frost layer initial stage shaping period, its ice crystal structure plays the effect that strengthens heat exchange area, the coefficient of heat transfer of heat exchanger is increased, along with the thickening gradually of frost layer, because the thermal conductivity factor of frost layer is lower than the coefficient of heat transfer on surface, evaporator metal, evaporimeter some row such as the reduction of heat exchange amount, the increase of circulation of air resistance occur and is unfavorable for that evaporimeter carries out the factor of effective heat exchange.Therefore, the existence of certain thickness frost layer makes heat transfer deterioration, and refrigerating efficiency reduces, so defrosting in time just seems especially important.
At present, adopt the regularly mode of defrost both at home and abroad on the refrigeration system defrosting control mode mostly, by the defrost of accumulative total refrigeration system start-up system running time.Because regularly defrost, control method is more inflexible, the selection on defrost opportunity can not be determined according to actual frost thickness usually, then can cause the storehouse temperature field wave moving bigger when high as the defrosting frequency, the defrosting frequency then can cause system's heat exchange efficiency to descend when low, more have as for making compressor return the liquid liquid hit phenomenon that mostly occurs because evaporator refrigerant can not be gasified totally.
The utility model content
The purpose of this utility model is at the technological deficiency that exists in the prior art, and a kind of intelligent defrosting controller that can carry out automatic defrosting according to frost thickness actual in the use is provided.
For realizing that the technical scheme that the purpose of this utility model adopts is:
A kind of intelligent defrosting control device, comprise power supply, high potential electrode and low position electrode for detection of frost thickness, little electrical signal detection receives amplifying device, the defrost controller, described high potential electrode and low position electrode are installed on the position apart from the evaporator surface differing heights respectively, the output of described high potential electrode and low position electrode is connected with little electric signal input end that described little electrical signal detection receives amplifying device respectively, the output that described little electrical signal detection receives amplifying device is connected with the input of described defrost controller, the output of described defrost controller is connected with the defrost actuating equipment, described defrost controller receives little signal of telecommunication that described little electrical signal detection receives amplifying device, judge frost thickness, the action of control defrost actuating equipment; Described high potential electrode, low position electrode and defrost controller are connected with described power supply respectively.
When in the refrigeration system a plurality of evaporimeter being arranged, position apart from each evaporator surface differing heights is separately installed with one group of high potential electrode and low position electrode, the output of every group of described high potential electrode and low position electrode is connected with little electric signal input end that described little electrical signal detection receives amplifying device respectively, and described defrost controller is handled back control defrost actuating equipment to many groups signal and moved.
Described high potential electrode, low position electrode and little electrical signal detection receive amplifying device and are installed on respectively on the support, and the scale that is used for determining high potential electrode, low position electrode position is installed on the described support.
The conductor that the material of described high potential electrode and low position electrode is the conductance height, resistance is low.
The vertical range of described high potential electrode and evaporator surface is greater than the vertical range of low position electrode and evaporator surface.
Described defrost controller is by the controlling organization communication of communication apparatus and refrigeration system.
Compared with prior art, the beneficial effects of the utility model are:
1, intelligent defrosting controller of the present utility model comes Intelligent Measurement refrigeration system frost thickness by the signal of telecommunication, thickness according to actual frost layer, realize the automated intelligent start and stop defrosting of refrigeration system, realize the intellectuality control of unit defrost, reduce defrosting and do not have good startup to the influence of refrigeration system and environment temperature field, improve system reliability, improved the efficient of refrigeration system, energy savings.
2, intelligent defrosting controller of the present utility model can be realized the remote monitoring of unit information by the telecommunication pattern, satisfies the requirement of various working environments.
Description of drawings
Figure 1 shows that the schematic diagram of the utility model intelligent defrosting controller.
Among the figure: 1. defrost controller, 2. little electrical signal detection receives amplifying device, 3. low position electrode, 4. support, 5. high potential electrode, 6. scale, 7. frost layer, 8. evaporimeter.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Figure 1 shows that the schematic diagram of the utility model intelligent defrosting controller, comprise power supply, receive amplifying device 2, defrost controller 1 for detection of high potential electrode 5 and low position electrode 3, little electrical signal detection of frost layer 7 thickness, described high potential electrode 5 and low position electrode 3 are installed on the position apart from evaporimeter 8 surperficial differing heights respectively, wherein, the vertical range on described high potential electrode 5 and evaporimeter 8 surfaces is greater than the vertical range of low position electrode 3 with evaporimeter 8 surfaces.The output of described high potential electrode 5 and low position electrode 3 is connected with little electric signal input end that described little electrical signal detection receives amplifying device 2 respectively, the output that described little electrical signal detection receives amplifying device 2 is connected with the input of described defrost controller 1, the output of described defrost controller 1 is connected with the defrost actuating equipment, defrost actuating equipment such as defrost electric heater or hot gas defrosting actuator.Described defrost controller 1 receives little signal of telecommunication that described little electrical signal detection receives amplifying device 2, judges frost thickness, the action of control defrost actuating equipment.Described high potential electrode, low position electrode and defrost controller are connected with described power supply respectively.
When in the refrigeration system a plurality of evaporimeter being arranged, position apart from each evaporator surface differing heights is separately installed with one group of high potential electrode and low position electrode, the output of every group of described high potential electrode and low position electrode is connected with little electric signal input end that described little electrical signal detection receives amplifying device respectively, and described defrost controller is handled back control defrost actuating equipment to many groups signal and moved.
For the ease of determining the position of high potential electrode and low position electrode, described high potential electrode 5, low position electrode 3 and little electrical signal detection receive amplifying device 2 and are installed on respectively on the support 4, and the scale 6 that is used for determining high potential electrode, low position electrode position is installed on the described support 4.
The conductor that the material of described high potential electrode and low position electrode is the conductance height, resistance is low is as copper etc.
For the ease of with the communication of refrigeration system controlling organization, described defrost controller 1 is by controlling organization (as extraneous PLC, HMI, the host computer etc.) communication of communication apparatus and refrigeration system.
When the evaporator surface frost thickness reaches one regularly, being positioned at the high potential electrode 5 of installing from the evaporator surface different distance all contacts with frost layer 7 surface with low position electrode 3, high potential electrode and low position electrode have been realized connection by the frost layer, little electrical signal detection receives amplifying device 2 and detects the change in electric that is communicated with between the high potential electrode in front and back and the low position electrode, and receive and to deliver to the defrost controller after amplifying processing, the defrost controller is judged the thickness of frost layer according to the variation of the signal of telecommunication, and carries out defrost by the defrost actuating equipment that refrigeration system is controlled in the variation of the signal of telecommunication automatically.The defrost start and stop of refrigeration system can be controlled also by single defrost controller to control after the signal combination of the high potential electrode of installing at the several diverse locations of evaporimeter and low position electrode is handled.Refrigeration system defrost control mode of the present utility model tradition regularly defrost have good energy saving and higher intelligent, and improved the efficient of refrigeration system.
The above only is preferred embodiment of the present utility model; should 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 domain of the present utility model.

Claims (6)

1. intelligent defrosting control device, it is characterized in that, comprise power supply, high potential electrode and low position electrode for detection of frost thickness, little electrical signal detection receives amplifying device, the defrost controller, described high potential electrode and low position electrode are installed on the position apart from the evaporator surface differing heights respectively, the output of described high potential electrode and low position electrode is connected with little electric signal input end that described little electrical signal detection receives amplifying device respectively, the output that described little electrical signal detection receives amplifying device is connected with the input of described defrost controller, the output of described defrost controller is connected with the defrost actuating equipment, described defrost controller receives little signal of telecommunication that described little electrical signal detection receives amplifying device, judge frost thickness, the action of control defrost actuating equipment; Described high potential electrode, low position electrode and defrost controller are connected with described power supply respectively.
2. intelligent defrosting control device according to claim 1, it is characterized in that, when in the refrigeration system a plurality of evaporimeter being arranged, position apart from each evaporator surface differing heights is separately installed with one group of high potential electrode and low position electrode, the output of every group of described high potential electrode and low position electrode is connected with little electric signal input end that described little electrical signal detection receives amplifying device respectively, and described defrost controller is handled back control defrost actuating equipment to many groups signal and moved.
3. intelligent defrosting control device according to claim 1 and 2, it is characterized in that, described high potential electrode, low position electrode and little electrical signal detection receive amplifying device and are installed on respectively on the support, and the scale that is used for determining high potential electrode, low position electrode position is installed on the described support.
4. intelligent defrosting control device according to claim 3 is characterized in that, the conductor that the material of described high potential electrode and low position electrode is the conductance height, resistance is low.
5. intelligent defrosting control device according to claim 3 is characterized in that, the vertical range of described high potential electrode and evaporator surface is greater than the vertical range of low position electrode and evaporator surface.
6. intelligent defrosting control device according to claim 3 is characterized in that, described defrost controller is by the controlling organization communication of communication apparatus and refrigeration system.
CN 201320045348 2013-01-28 2013-01-28 Intelligent frost controller Withdrawn - After Issue CN203116386U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320045348 CN203116386U (en) 2013-01-28 2013-01-28 Intelligent frost controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320045348 CN203116386U (en) 2013-01-28 2013-01-28 Intelligent frost controller

Publications (1)

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CN203116386U true CN203116386U (en) 2013-08-07

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CN 201320045348 Withdrawn - After Issue CN203116386U (en) 2013-01-28 2013-01-28 Intelligent frost controller

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062967A (en) * 2013-01-28 2013-04-24 天津商业大学 Intelligent defrosting controller
CN108302651A (en) * 2016-09-18 2018-07-20 苏州三星电子有限公司 A kind of multi-gang air-conditioner outdoor machine system and its Defrost method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103062967A (en) * 2013-01-28 2013-04-24 天津商业大学 Intelligent defrosting controller
CN103062967B (en) * 2013-01-28 2015-03-11 天津商业大学 Intelligent defrosting controller
CN108302651A (en) * 2016-09-18 2018-07-20 苏州三星电子有限公司 A kind of multi-gang air-conditioner outdoor machine system and its Defrost method

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130807

Effective date of abandoning: 20150311

RGAV Abandon patent right to avoid regrant