CN102269173B - The control device of a kind of direct current fan for refrigerator and method thereof - Google Patents
The control device of a kind of direct current fan for refrigerator and method thereof Download PDFInfo
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- CN102269173B CN102269173B CN201110155255.1A CN201110155255A CN102269173B CN 102269173 B CN102269173 B CN 102269173B CN 201110155255 A CN201110155255 A CN 201110155255A CN 102269173 B CN102269173 B CN 102269173B
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- fan
- drive end
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- blower fan
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Abstract
The present invention discloses a kind of control device and the control method of refrigerator DC fan, control device comprises drive end and signal detection feedback end, drive end is by exporting the operation of control blower fan, fan operation situation is detected by signal detection feedback end, and the signal feedback fan control device by detection, feedback signal and set(ting)value are compared by fan controller, and are controlled the operation of blower fan by drive end.
Description
Technical field
The present invention relates to a kind of freezing, refrigerating plant, and control method; In particular to a kind of wind cooling refrigerator with evaporation fan, and control method.
Background technology
Wind cooling refrigerator of the prior art comprises casing, refrigeration system, evaporation fan and electric control part, refrigeration system comprises compressor, vaporizer, condenser and corresponding connecting pipeline, evaporation fan is installed on an evaporator, when evaporation fan operates, air in casing is carried out mandatory circulation, the air-flow continuous uniform in casing can be made to pass through evaporator surface, take the cold equilibrium of evaporator surface to each region in casing fast after carrying out heat exchange, reach the object of comparatively highly effective refrigeration. Above-mentioned evaporation fan many employings DC fan, also has sub-fraction to take AC blower fan; DC fan exports as it provides direct supply mainly through the power supply of electric control part middle controller. In above-mentioned prior art, evaporation fan is in wind cooling refrigerator process of refrigeration, its controller is comparatively simple to the control of operation scheme, the operation scheme of evaporation fan is comparatively single and invariable, can not carry out white dynamic adjustment according to the actual of temperature in the running status of refrigeration system and casing. Often can there is stall situation in DC fan, cause motor always block heating thus presence of fire is dangerous; Fan starting often occurs electric current excessive in addition, causes abnormal situation; Also often there is abrupt change of voltage, power supply is produced strong jamming, causes abnormal phenomenon.
Summary of the invention
In view of above-mentioned deficiency, it is an object of the invention to provide one can be more stable, safer, can regulate rotation speed of fan, and can detect and dispose direct current fan for refrigerator control device and the method thereof of relevant fault in time.
For reaching described object, the present invention provides a kind of control device and the method thereof of direct current fan for refrigerator, assembling is on the vaporizer of refrigerator, the operation of blower fan is controlled by fan controller, fan controller is arranged in casing, it is characterized in that: also comprise drive end and signal detection feedback end, drive end and signal detection feedback end and fan controller are connected with blower fan and form loop, drive end is by exporting the operation of control blower fan, fan operation situation is detected by signal detection feedback end, and the signal feedback fan control device by detection, feedback signal and set(ting)value are compared by fan controller, and the operation of blower fan is controlled by drive end.
Drive end circuit at least also comprises two resistive devices and an inductance device.
Fan controller is set with the reset routine of fan operation, after blower fan certain time out of service, restarts the output of drive end, drives fan operation;
For reaching described object, the present invention provides a kind of direct current fan for refrigerator control device and method thereof, comprises the following steps:
A: fan controller exports the operation of control blower fan by drive end;
B: the fan operation signal feedback fan control device that signal detection feedback end will detect;
C: feedback signal and set(ting)value are compared by fan controller;
D: fan controller is according to whether result feedback signal and set(ting)value compared, control drive end continues to export.
E: blower fan, after certain time out of service, restarts.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of a kind of direct current fan for refrigerator control device in the present invention.
Fig. 2 is a kind of direct current fan for refrigerator control device in embodiment 3 in the present invention
Embodiment:
Below, by reference to the accompanying drawings the specific embodiment of the present invention is described in detail.
Under the operating mode of prior art, fan controller also comprises drive end and signal detection feedback end, drive end and signal detection feedback end are connected with blower fan with fan controller respectively and form loop, drive end is by exporting the operation of control blower fan, fan operation situation is detected by signal detection feedback end, and the signal feedback fan control device by detection, feedback signal and set(ting)value are compared by fan controller, and are controlled the operation of blower fan by drive end;
Embodiment 1
Referring to Fig. 1, the control device of a kind of direct current fan for refrigerator, assembling is on the vaporizer of refrigerator, the operation of blower fan is controlled by fan controller, fan controller is arranged in casing, it is characterized in that: also comprise drive end and signal detection feedback end, drive end and signal detection feedback end are connected with blower fan with fan controller respectively and form loop, drive end is by exporting the operation of control blower fan, fan operation situation is detected by signal detection feedback end, and the signal feedback fan control device by detection, feedback signal and set(ting)value are compared by fan controller, and the operation of blower fan is controlled by drive end.
A kind of optimal way of direct current fan for refrigerator control device is: when P1 pin exports high level, V1 conducting, and by R3 resistance, R1, R2 and V1 form first group of resistive device; V2 is conducting also, and R3, R4, V2 and VD1 form the 2nd group of resistive device; VD1, L1, C1 and C2 form inductance device, and collector electrode exports high level, and direct supply+V1 is charged to C1 by L1, and DC fan Energy control terminal voltage progressively raises;
When P1 pin exports lower level, V1 ends, thus V2 also ends, V2 collector electrode is lower level, and C2 end is owing to powering to blower fan, start electric discharge, but coil L1 has afterflow function, continue to L1 charging, blower fan afterflow, when equilibrium is reached, the control end voltage of blower fan starts constant, maintains blower fan and operates steady power supply.
When passing through the high level dutycycle of adjustment P1 end, we can adjust the discharge and recharge time, and high level time is more long, and the steady voltage that final C1 obtains is more high, thus the rotating speed of blower fan is more fast.
Owing to being zero when the voltage of C1 end just powers on, owing to the voltage at electric capacity two ends can not suddenly change, coil L1 has the advantages that electric current can not suddenly change simultaneously, and therefore blower voltage, electric current are slow risings, thus avoid the excessive generation of DC fan starting current and abnormal conditions occur.
DC fan feedback end exports the feedback signal of certain frequency, by R6, enters micro-chip P2 end, by whether the detection of micro-chip P2 end has feedback signal, thus judges whether blower fan running is normal.
Preferably, fan controller can also set the reset routine of fan operation by write in advance, after being set as blower fan certain time out of service, or after being set as that blower fan is out of service, temperature drops to the output that a certain temperature restarts drive end, drives fan operation. Can better control heavily opening of blower fan, ensure the good operation of blower fan.
Embodiment 2
Except following record content, other can be identical with embodiment 1 corresponding part technology contents. When above-mentioned P1 pin exports high level, realize charging to C1 to L1 by increasing several groups of resistive devices or reduce by one group of resistive device.
The technology contents that aforesaid way is not addressed, those skilled in the art adopt prior art to realize.
It should be noted that, under the guidance of this specification sheets, any equivalents done by those skilled in the art, or obvious variant, all should in protection scope of the present invention.
Embodiment 3
Referring to Fig. 2, signal detection feedback end and drive end connecting fan, blower fan and control device connection line omit. By driving, triode device carries out feedback detection to signal detection feedback end, for the polymorphic type blower fan of different feedback level provides versatility detection device.
The technology contents that aforesaid way is not addressed, those skilled in the art adopt prior art to realize.
It should be noted that, under the guidance of this specification sheets, any equivalents done by those skilled in the art, or obvious variant, all should in protection scope of the present invention.
Claims (3)
1. the control device of a direct current fan for refrigerator, assembling is on the vaporizer of refrigerator, the operation of blower fan is controlled by fan controller, fan controller is arranged in casing, it is characterized in that: also comprise drive end and signal detection feedback end, drive end and signal detection feedback end and fan controller are connected with blower fan and form loop, drive end is by exporting the operation of control blower fan, fan operation situation is detected by signal detection feedback end, and the signal feedback fan control device by detection, feedback signal and set(ting)value are compared by fan controller, and the operation of blower fan is controlled by drive end, fan controller is set with the reset routine of fan operation, after blower fan certain time out of service, restarts the output of drive end, drives fan operation.
2. the control device of a direct current fan for refrigerator as claimed in claim 1, it is characterised in that, drive end circuit at least also comprises two resistive devices and an inductance device.
3. one kind uses the method for the control device of direct current fan for refrigerator as claimed in claim 1, it is characterised in that: comprise the following steps:
A: fan controller exports the operation of control blower fan by drive end;
B: the fan operation signal feedback fan control device that signal detection feedback end will detect;
C: feedback signal and set(ting)value are compared by fan controller;
D: fan controller is according to whether result feedback signal and set(ting)value compared, control drive end continues to export;
E: blower fan is after certain time out of service, restart: fan controller is by the reset routine of the fan operation of write setting in advance, after being set as blower fan certain time out of service, or after being set as that blower fan is out of service, temperature drops to the output that a certain temperature restarts drive end, drives fan operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155255.1A CN102269173B (en) | 2011-06-10 | 2011-06-10 | The control device of a kind of direct current fan for refrigerator and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110155255.1A CN102269173B (en) | 2011-06-10 | 2011-06-10 | The control device of a kind of direct current fan for refrigerator and method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN102269173A CN102269173A (en) | 2011-12-07 |
| CN102269173B true CN102269173B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110155255.1A Active CN102269173B (en) | 2011-06-10 | 2011-06-10 | The control device of a kind of direct current fan for refrigerator and method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265669A (en) * | 2014-09-24 | 2015-01-07 | 合肥美的电冰箱有限公司 | Rotating speed control method and device of brushless DC fan, fan and refrigerator |
| CN104373368B (en) * | 2014-11-12 | 2017-05-24 | 合肥美的电冰箱有限公司 | Draught fan rotating speed control method and device for refrigerator and refrigerator |
| CN112665280B (en) * | 2020-12-24 | 2022-06-10 | Tcl家用电器（合肥）有限公司 | Air-cooled refrigerator fan control method and device and air-cooled refrigerator |
| CN114739104B (en) * | 2022-04-22 | 2024-04-02 | Tcl家用电器（合肥）有限公司 | Control method of refrigerator fan and refrigerator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2280971A (en) * | 1993-08-09 | 1995-02-15 | Imi Cornelius | Drink dispenser refrigeration system |
| US6671459B1 (en) * | 2000-06-30 | 2003-12-30 | General Electric Company | DC motor control method and apparatus |
| CN1576754A (en) * | 2003-07-28 | 2005-02-09 | 株式会社东芝 | Motor driving device for refrigerator and cooling fan driving device |
| CN201561578U (en) * | 2009-12-08 | 2010-08-25 | 海尔集团公司 | Fan control device of a gas equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10235783B4 (en) * | 2002-08-05 | 2008-02-14 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigeration unit with fan and control method for it |
| CN100466411C (en) * | 2003-04-30 | 2009-03-04 | 台达电子工业股份有限公司 | Fan protective device and method |
| US8813511B2 (en) * | 2009-03-31 | 2014-08-26 | Johnson Controls Technology Company | Control system for operating condenser fans |
-
2011
- 2011-06-10 CN CN201110155255.1A patent/CN102269173B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2280971A (en) * | 1993-08-09 | 1995-02-15 | Imi Cornelius | Drink dispenser refrigeration system |
| US6671459B1 (en) * | 2000-06-30 | 2003-12-30 | General Electric Company | DC motor control method and apparatus |
| CN1576754A (en) * | 2003-07-28 | 2005-02-09 | 株式会社东芝 | Motor driving device for refrigerator and cooling fan driving device |
| CN201561578U (en) * | 2009-12-08 | 2010-08-25 | 海尔集团公司 | Fan control device of a gas equipment |
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| CN102269173A (en) | 2011-12-07 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HISENSE (SHANDONG) REFRIGERATOR CO., LTD. Free format text: FORMER OWNER: HISENSE (BEIJING) ELECTRICAL EQUIPMENT CO., LTD. Effective date: 20140102 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140102 Address after: 266061 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant after: Hisense (Shandong) refrigerator Co., Ltd. Address before: 266061 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: Hisense (Beijing) Electric Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 266736, No. 8, Hisense Avenue, South Village, Pingdu City, Shandong, Qingdao Patentee after: Hisense (Shandong) refrigerator Co., Ltd. Address before: 266061 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: Hisense (Shandong) refrigerator Co., Ltd. |
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| CP02 | Change in the address of a patent holder |