CN201803567U - Defrosting control system of refrigerator - Google Patents
Defrosting control system of refrigerator Download PDFInfo
- Publication number
- CN201803567U CN201803567U CN2010205389367U CN201020538936U CN201803567U CN 201803567 U CN201803567 U CN 201803567U CN 2010205389367 U CN2010205389367 U CN 2010205389367U CN 201020538936 U CN201020538936 U CN 201020538936U CN 201803567 U CN201803567 U CN 201803567U
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- refrigerating chamber
- refrigerator
- air inlet
- temperature sensor
- air
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Abstract
The utility model relates to a defrosting control system of a refrigerator, which comprises a controller, a circulating fan, a defrosting temperature sensor connected with the controller, a refrigerating chamber temperature sensor, a freezer temperature sensor and an ambient temperature sensor, wherein the circulating fan is arranged at the side of a refrigerator evaporator, and an air duct in which the circulating fan is arranged is provided with a freezer air inlet and a refrigerating chamber air inlet; an electrically operated air throttle of the freezer air inlet and an electrically operated air throttle of the refrigerating chamber air inlet are respectively arranged at the air inlets, the refrigerator evaporator is arranged in an air duct corresponding to the other side of the circulating fan, and the air duct is provided with a freezer air return vent and a refrigerating chamber air return vent; and the freezer air return vent is provided with an electrically operated air throttle of the freezer air return vent. The defrosting control system controls refrigeration and defrosting by controlling the electrically operated air throttles and the circulating fan, can save electric energy and does not produce sustained high temperature to affect the temperature of the refrigerator, reduces energy consumption, also utilizes the temperature difference between a refrigerating chamber and the refrigerator evaporator to defrost the refrigerator evaporator by the relative hot air in the refrigerating chamber, has high energy efficiency utilization rate, and saves energy consumption.
Description
Technical field
The utility model relates to the technical field of refrigerator in the electric equipment, especially relates to a kind of defroster control system.
Background technology
One deck frost can be tied in a period of time finisher of refrigerator operation generally surface, and this frost layer can influence the heat exchange of air in evaporimeter and the frost, reduces refrigerating efficiency, so refrigerator must defrost after operation a period of time.The defroster of general refrigerator comprises evaporimeter, defrosting heating tube, drip tray heating tube, defrosting temperature sensor, high temperature fuse, refrigerator controller.After the defrost process of general refrigerator was the refrigerator work certain hour, refrigerator controller was connected the defrosting heating tube, and defrosting heating tube work is until the frost layer of evaporimeter dissolves, and defrost water is discharged from drip tray and drainpipe, and defrost process finishes.During this time because the defrosting heating tube heats for a long time, and heating tube power is big, not only consumed energy but also wasted the original cold of evaporimeter, it is excessive that temperature is risen, and causes energy consumption of refrigerator to increase.
The utility model content
The technical problems to be solved in the utility model provides a kind of utilize temperature difference and heat exchange, not only to evaporator defrost but also to the defroster control system of refrigerating chamber refrigeration, to solve the energy consumption of refrigerator in defrost process and the problem of cold waste.
For solving the problems of the technologies described above, technical scheme of the present utility model is:
A kind of defroster control system, comprise circulating fan, controller, the defrosting temperature sensor that is connected with controller, refrigerator temperature sensor, freezer temperature sensor and environment temperature sensor, circulating fan is located at the side of evaporator of refrigerator, the air channel of circulating fan position is provided with refrigerating chamber air inlet and refrigerating chamber air inlet, refrigerating chamber air inlet place is provided with refrigerating chamber air inlet MOD and refrigerating chamber air inlet place is provided with refrigerating chamber air inlet MOD, the air channel at the corresponding circulating fan opposite side of evaporator of refrigerator place is provided with refrigerating chamber return air inlet and refrigerating chamber return air inlet, and the refrigerating chamber return air inlet is provided with refrigerating chamber return air inlet MOD.
Described defroster control system also comprises the electric heater that is connected with controller, and described electric heater is embedded on the evaporator of refrigerator.
Described defrosting temperature sensor is located on the evaporator of refrigerator.
Described refrigerator temperature sensor is located in the refrigerating chamber.
Described cryogenic temperature sensor) is located in the refrigerating chamber.
Described environment temperature sensor is located at the refrigerator top.
Course of work the following step of the utility model defroster control system:
Step 1: the refrigerator refrigeration that powers on, controller detects temperature of refrigerating chamber and freezer temperature separately by refrigerator temperature sensor and freezer temperature sensor, and, judge whether each chamber requires refrigeration according to user's refrigeration design temperature Tr0 and freezing design temperature Tf0; When refrigerating chamber and refrigerating chamber all require to freeze, controller control refrigerating chamber air inlet MOD, refrigerating chamber return air inlet MOD and refrigerating chamber air inlet MOD are all opened, freezer compressor work refrigeration, circulating fan work, kind of refrigeration cycle wind is by normal circulation circuit cycle refrigeration, refrigerating chamber and refrigerating chamber all freeze, when freezing to temperature of refrigerating chamber T1-a＞refrigeration design temperature Tr0, controller control refrigerating chamber air inlet MOD is closed, refrigerating chamber stops refrigeration, and refrigerating chamber continues to freeze to shutdown temperature T3, and freezer compressor is shut down;
Step 2: when refrigerator meets self-loopa wind defrosting condition, enter self-loopa wind defrost process: this moment, controller was controlled refrigerating chamber air inlet MOD and refrigerating chamber return air inlet MOD) close, control refrigerating chamber air inlet MOD and circulating fan are opened, circulated air circulates to refrigerating chamber by evaporator of refrigerator, because of the temperature difference of evaporator of refrigerator and refrigerating chamber big, hot-air by refrigerating chamber defrosts to evaporator of refrigerator, the cold of evaporator of refrigerator freezes and humidification to refrigerating chamber again simultaneously, temperature up to defrosting temperature sensor or refrigerator temperature sensor or freezer temperature sensor detection meets self-loopa defrosting exit criteria, then withdraw from the self-loopa defrosting, then by normal refrigeration control;
Step 3: in step 2, controller is accumulated the freezer compressor continuous operating time, and when the accumulation of freezer compressor continuous operating time reaches t1, and freezer temperature is greater than Tf0; Or work as environment temperature less than 0 ℃, when the compressor operating time accumulation reaches t2, controller closing refrigerator compressor, circulating fan, refrigerating chamber air inlet MOD, refrigerating chamber return air inlet MOD and refrigerating chamber air inlet MOD, defrosting is assisted in the electric heater work of opening in the evaporator of refrigerator, when the defrosting temperature sensor detects the evaporator of refrigerator temperature and is T2, then withdraw from auxiliary defrosting.
The control method of above-mentioned defroster control system is characterized in that: the described a of step 1 is 1～5 ℃, shutdown temperature T3＜Tf
0, 12 ℃-23 ℃ of Tf0 scopes.
The control method of above-mentioned defroster control system is characterized in that: the described self-loopa defrosting of step 2 condition is T2＜0 ℃ for the evaporator of refrigerator temperature, temperature of refrigerating chamber＞Tr0 and compressor shutdown; Self-loopa defrosting exit criteria is T2＞0 ℃ for the evaporator of refrigerator temperature, temperature of refrigerating chamber T1＜0 ℃, and freezer temperature is greater than Tf0+b; 2 ℃-6 ℃ of the scopes of b.
The control method of above-mentioned defroster control system is characterized in that: the described t1 of step 3 is 4～8 hours, and t2 is 8～15 hours, and the evaporator of refrigerator temperature is that T2 is 4～10 ℃
The utility model with respect to the beneficial effect of prior art is:
Design feature of the present utility model is refrigerating chamber air inlet and return air inlet, and the refrigerating chamber air inlet all is equipped with controllable MOD; Self-loopa wind defrost process is to control refrigeration and defrosting by the MOD of controlling each air port and circulating fan, self-loopa wind defrosting does not use the electric heater defrosting not only to save electric energy but also can not produce continuous high temperature usually influences refrigerator temperature, refrigerator temperature gos up little, cuts down the consumption of energy; The utility model also utilizes the temperature difference of refrigerating chamber and evaporator of refrigerator, relatively hot air by refrigerating chamber defrosts to evaporator of refrigerator, and the cold air of evaporator of refrigerator freezes and humidification to refrigerating chamber simultaneously, not only defrosts but also freeze, efficiency utilization rate height is saved energy consumption.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is that control system structure of the present utility model is formed schematic diagram;
Fig. 2 is a course of work flow chart of the present utility model;
Fig. 3 is a control system composition frame chart of the present utility model.
The specific embodiment
Fig. 1, Fig. 3 is respectively control system structure of the present utility model and forms schematic diagram and composition frame chart, comprise circulating fan 1, controller 9, the defrosting temperature sensor 6 that is connected with controller 9, refrigerator temperature sensor 7, freezer temperature sensor 8 and environment temperature sensor 12, circulating fan 1 is installed in the side of evaporator of refrigerator 2, be located at the back of evaporator of refrigerator 2 as figure, the air channel of circulating fan 1 back is divided into refrigerating chamber air inlet and refrigerating chamber air inlet, refrigerating chamber air inlet and refrigerating chamber air inlet place install refrigerating chamber air inlet MOD 3 and refrigerating chamber air inlet MOD 4 respectively, air channel, evaporator of refrigerator 2 front is provided with refrigerating chamber return air inlet and refrigerating chamber return air inlet, and the refrigerating chamber return air inlet is equipped with refrigerating chamber return air inlet MOD 5.Control system of the present utility model also comprises the electric heater 11 that is connected with controller 9, this electric heater 11 is embedded on the evaporator of refrigerator 2, refrigerator temperature sensor 7 is installed in the refrigerating chamber, cryogenic temperature sensor 8 is installed in the refrigerating chamber, the work of controller 9 control circulating fans 1 and freezer compressor 10, the below of evaporator of refrigerator 2 is provided with the drip tray of discharging defrost water.
Fig. 2 is a course of work flow chart of the present utility model, comprises the following steps:
Step 1: the refrigerator refrigeration that powers on, controller 9 detects temperature of refrigerating chamber and freezer temperature separately by refrigerator temperature sensor 7 and freezer temperature sensor 8, and, judge whether each chamber requires refrigeration according to user's refrigeration design temperature Tr0 and freezing design temperature Tf0; When refrigerating chamber and refrigerating chamber all require to freeze, controller 9 control refrigerating chamber air inlet MODs 3, refrigerating chamber return air inlet MOD 5 and refrigerating chamber air inlet MOD 4 are all opened, freezer compressor 10 work refrigeration, circulating fan 1 work, kind of refrigeration cycle wind is by normal circulation circuit cycle refrigeration, refrigerating chamber and refrigerating chamber all freeze, when freezing to temperature of refrigerating chamber T1-a＞refrigeration design temperature Tr0, controller 9 control refrigerating chamber air inlet MODs 4 are closed, refrigerating chamber stops refrigeration, and refrigerating chamber continues to freeze to shutdown temperature T3, and freezer compressor 10 is shut down; Wherein a is 1～5 ℃, shutdown temperature T3＜Tf
0, 12 ℃-23 ℃ of Tf0 scopes.
Step 2: self-loopa wind defrost process: self-loopa defrosting condition includes but not limited to evaporator temperature＜0 ℃, temperature of refrigerating chamber＞Tr0, compressor shutdown etc., when refrigerator meets self-loopa wind defrosting condition, refrigerator enters self-loopa wind defrost process: this moment, controller 9 control refrigerating chamber air inlet MODs 3 and refrigerating chamber return air inlet MOD 5 were closed, control refrigerating chamber air inlet MOD 4 and circulating fan 1 are opened, circulated air circulates to refrigerating chamber by evaporator of refrigerator 2, because of evaporator of refrigerator 2 big with the temperature difference of refrigerating chamber, hot-air by refrigerating chamber defrosts to evaporator of refrigerator 2, the cold of evaporator of refrigerator 2 freezes and humidification to refrigerating chamber again simultaneously, temperature up to defrosting temperature sensor 6 or refrigerator temperature sensor 7 or freezer temperature sensor 8 detections meets self-loopa defrosting exit criteria, then withdraw from the self-loopa defrosting, then by normal refrigeration control; Self-loopa defrosting exit criteria is that evaporator of refrigerator 2 temperature are T2＞0 ℃, temperature of refrigerating chamber T1＜0 ℃, and freezer temperature is greater than Tf0+b; 2 ℃-6 ℃ of the scopes of b.
Step 3: in step 2,9 pairs of freezer compressor 10 continuous operating times of controller are accumulated, and when the accumulation of freezer compressor 10 continuous operating times reaches t1, and freezer temperature is greater than Tf0; Or work as environment temperature less than 0 ℃, when the compressor operating time accumulation reaches t2, controller 9 closing refrigerator compressors 10, circulating fan 1, refrigerating chamber air inlet MOD 3, refrigerating chamber return air inlet MOD 5 and refrigerating chamber air inlet MOD 4, defrosting is assisted in electric heater 11 work of opening in the evaporator of refrigerator 2, when defrosting temperature sensor 6 detects evaporator of refrigerator 2 temperature and is T2, then withdraw from auxiliary defrosting.T1 is 4～8 hours, and t2 is 8～15 hours, and evaporator of refrigerator 2 temperature are that T2 is 4～10 ℃.
Claims (6)
1. defroster control system, comprise controller (9), the defrosting temperature sensor (6) that is connected with controller (9), it is characterized in that: also comprise circulating fan (1), the refrigerator temperature sensor (7) that is connected with controller (9), freezer temperature sensor (8) and environment temperature sensor (12), circulating fan (1) is located at the side of evaporator of refrigerator (2), the air channel of circulating fan (1) position is provided with refrigerating chamber air inlet and refrigerating chamber air inlet, refrigerating chamber air inlet place is provided with refrigerating chamber air inlet MOD (3) and refrigerating chamber air inlet place is provided with refrigerating chamber air inlet MOD (4), the air channel at the corresponding circulating fan of evaporator of refrigerator (2) (1) opposite side place is provided with refrigerating chamber return air inlet and refrigerating chamber return air inlet, and the refrigerating chamber return air inlet is provided with refrigerating chamber return air inlet MOD (5).
2. defroster control system according to claim 1 is characterized in that: also comprise the electric heater (11) that is connected with controller (9), described electric heater (11) is embedded on the evaporator of refrigerator (2).
3. defroster control system according to claim 1 is characterized in that: described defrosting temperature sensor (6) is located on the evaporator of refrigerator (2).
4. defroster control system according to claim 1 is characterized in that: described refrigerator temperature sensor (7) is located in the refrigerating chamber.
5. defroster control system according to claim 1 is characterized in that: described cryogenic temperature sensor (8) is located in the refrigerating chamber.
6. defroster control system according to claim 1 is characterized in that: described environment temperature sensor (12) is located at the refrigerator top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205389367U CN201803567U (en) | 2010-09-17 | 2010-09-17 | Defrosting control system of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205389367U CN201803567U (en) | 2010-09-17 | 2010-09-17 | Defrosting control system of refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803567U true CN201803567U (en) | 2011-04-20 |
Family
ID=43873066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205389367U Expired - Lifetime CN201803567U (en) | 2010-09-17 | 2010-09-17 | Defrosting control system of refrigerator |
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| CN (1) | CN201803567U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963437A (en) * | 2010-09-17 | 2011-02-02 | 海信容声(广东)冰箱有限公司 | Defrosting control system and control method of refrigerator |
| CN102679685A (en) * | 2012-05-08 | 2012-09-19 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN103115469A (en) * | 2013-03-17 | 2013-05-22 | 张光裕 | Defrosting device of refrigerator cabinet freezer |
| CN104406349A (en) * | 2014-12-12 | 2015-03-11 | 合肥美的电冰箱有限公司 | Refrigerator and air quantity control method and device thereof |
| WO2015035886A1 (en) * | 2013-09-10 | 2015-03-19 | 海尔亚洲国际株式会社 | Refrigerator |
| CN104482716A (en) * | 2014-12-31 | 2015-04-01 | 合肥美的电冰箱有限公司 | Defrosting control method for refrigerator and refrigerator |
| CN104596185A (en) * | 2015-01-22 | 2015-05-06 | 刘雄 | Frost-free refrigerator controller |
| CN107044756A (en) * | 2017-03-28 | 2017-08-15 | Tcl家用电器（合肥）有限公司 | The anti-freeze control method of air door and refrigerator |
| CN108626945A (en) * | 2018-07-10 | 2018-10-09 | 长虹美菱股份有限公司 | A kind of household refrigerator-freezer to defrost naturally |
| CN106052262B (en) * | 2016-07-06 | 2019-01-04 | 海信容声(广东)冰箱有限公司 | A kind of defrosting method of refrigerator and its refrigerator room |
| CN114935237A (en) * | 2022-05-30 | 2022-08-23 | 合肥美菱物联科技有限公司 | Refrigerator defrosting system and control method |
-
2010
- 2010-09-17 CN CN2010205389367U patent/CN201803567U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034299A1 (en) * | 2010-09-17 | 2012-03-22 | 海信容声(广东)冰箱有限公司 | Defrosting control system of refrigerator and control method thereof |
| CN101963437A (en) * | 2010-09-17 | 2011-02-02 | 海信容声(广东)冰箱有限公司 | Defrosting control system and control method of refrigerator |
| CN102679685A (en) * | 2012-05-08 | 2012-09-19 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN102679685B (en) * | 2012-05-08 | 2014-07-30 | 河南新飞电器有限公司 | Air-cooled refrigerator and energy-saving defrosting control method thereof |
| CN103115469A (en) * | 2013-03-17 | 2013-05-22 | 张光裕 | Defrosting device of refrigerator cabinet freezer |
| CN103115469B (en) * | 2013-03-17 | 2014-12-03 | 张光裕 | Defrosting device of refrigerator cabinet freezer |
| WO2015035886A1 (en) * | 2013-09-10 | 2015-03-19 | 海尔亚洲国际株式会社 | Refrigerator |
| CN104406349B (en) * | 2014-12-12 | 2017-06-20 | 合肥美的电冰箱有限公司 | Refrigerator and its air quantity control method, device |
| CN104406349A (en) * | 2014-12-12 | 2015-03-11 | 合肥美的电冰箱有限公司 | Refrigerator and air quantity control method and device thereof |
| CN104482716A (en) * | 2014-12-31 | 2015-04-01 | 合肥美的电冰箱有限公司 | Defrosting control method for refrigerator and refrigerator |
| CN104596185A (en) * | 2015-01-22 | 2015-05-06 | 刘雄 | Frost-free refrigerator controller |
| CN106052262B (en) * | 2016-07-06 | 2019-01-04 | 海信容声(广东)冰箱有限公司 | A kind of defrosting method of refrigerator and its refrigerator room |
| CN107044756A (en) * | 2017-03-28 | 2017-08-15 | Tcl家用电器（合肥）有限公司 | The anti-freeze control method of air door and refrigerator |
| CN107044756B (en) * | 2017-03-28 | 2019-11-05 | Tcl家用电器（合肥）有限公司 | The anti-freeze control method of air door and refrigerator |
| CN108626945A (en) * | 2018-07-10 | 2018-10-09 | 长虹美菱股份有限公司 | A kind of household refrigerator-freezer to defrost naturally |
| CN114935237A (en) * | 2022-05-30 | 2022-08-23 | 合肥美菱物联科技有限公司 | Refrigerator defrosting system and control method |
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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 |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |