CN104373368B - Draught fan rotating speed control method and device for refrigerator and refrigerator - Google Patents
Draught fan rotating speed control method and device for refrigerator and refrigerator Download PDFInfo
- Publication number
- CN104373368B CN104373368B CN201410636651.XA CN201410636651A CN104373368B CN 104373368 B CN104373368 B CN 104373368B CN 201410636651 A CN201410636651 A CN 201410636651A CN 104373368 B CN104373368 B CN 104373368B
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- Prior art keywords
- blower fan
- speed
- refrigerator
- rotating speed
- target
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/304—Spool rotational speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a draught fan rotating speed control method for a refrigerator. The method includes the following steps of detecting the input voltage of a draught fan, obtaining the running rotating speed of the draught fan according to the input voltage, adjusting the running rotating speed of the draught fan according to the target rotating speed of the draught fan, and keeping the running rotating speed of the draught fan at the target rotating speed. According to the draught fan rotating speed control method for the refrigerator, the running rotating speed of the draught fan can be accurately adjusted, the running rotating speed of the draught fan is accurately and reliably kept close to the target rotating speed, the accurate control over the temperature of the refrigerator is achieved, and the performance of the refrigerator is improved. The invention further provides a draught fan rotating speed control device for the refrigerator and the refrigerator.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, the rotation speed of fan control method of more particularly to a kind of refrigerator, device and
Refrigerator.
Background technology
At present, some relatively costly refrigerators, wind is detected by the Hall sensor being configured with for detecting DC fan
The rotating speed (high cost of this blower fan with feedback) of machine, but, it is this to detect the relatively costly of structure so that the cost of refrigerator
It is higher, lack the market competitiveness.
But, if cannot get the running speed of blower fan, lack the reference to rotation speed of fan regulation, it is impossible to do well
To the accurate adjustment of rotation speed of fan.However, the rotating speed of blower fan is related to the number of cold, so as to also just have impact on refrigerator temperature control
The stability of system.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem.
Therefore, the rotation speed of fan control method it is an object of the present invention to propose a kind of refrigerator.The method can be simple
The precise control to rotation speed of fan is conveniently realized, the performance of refrigerator is lifted.
A kind of rotation speed of fan control device another object of the present invention is to propose refrigerator.
Another object of the present invention is to propose a kind of refrigerator.
To achieve these goals, the embodiment of the first aspect of the present invention discloses a kind of rotation speed of fan control of refrigerator
Method, comprises the following steps：The input voltage of detection blower fan；The running speed of the blower fan is obtained according to the input voltage；
And according to the running speed of the rotating speed of target of the blower fan adjustment blower fan, the running speed of the blower fan is maintained institute
State rotating speed of target.
The rotation speed of fan control method of refrigerator according to embodiments of the present invention, the feedback of the input voltage according to blower fan can
To obtain the running speed of blower fan such that it is able to which accurately the running speed to blower fan is adjusted, make the running speed of blower fan
Accurately and reliably maintain near rotating speed of target, realize the precise control of the temperature of refrigerator, lift refrigerator performance.
In addition, the rotation speed of fan control method of refrigerator according to the above embodiment of the present invention can also have what is added as follows
Technical characteristic：
Further, the running speed that the blower fan is adjusted according to the rotating speed of target of the blower fan, makes the blower fan
Running speed maintain the rotating speed of target, further include：Compare the rotating speed of target of the blower fan and the fortune of the blower fan
Row rotating speed；If the difference between the running speed of the rotating speed of target of the blower fan and the blower fan is located at preset rotation speed error model
Outside enclosing, then the running speed of the blower fan is controlled to change preset rotation speed at interval of the scheduled time, until the target of the blower fan
Difference between the running speed of rotating speed and the blower fan is located within the preset rotation speed error range.
Further, the input voltage of the blower fan is obtained by voltage collection circuit.
The embodiment of second aspect present invention discloses a kind of rotation speed of fan control device of refrigerator, including：Drive circuit,
The drive circuit is connected with blower fan, to drive the fan operation；Voltage collection circuit, the detection of the voltage collection circuit
End is connected with the connecting line between the drive circuit and the blower fan, to detect the input voltage of the blower fan；Control chip,
The control chip is connected with the drive circuit and the voltage collection circuit respectively, and institute is obtained with according to the input voltage
The running speed of blower fan is stated, and is turned by the operation that the drive circuit adjusts the blower fan according to the rotating speed of target of the blower fan
Speed, makes the running speed of the blower fan maintain the rotating speed of target.
The rotation speed of fan control device of refrigerator according to embodiments of the present invention, according to the blower fan that voltage collection circuit is collected
Input voltage, the running speed of blower fan can be obtained, so that the running speed that drive circuit can be accurately to blower fan is carried out
Adjustment, makes the running speed of blower fan accurately and reliably maintain near rotating speed of target, realizes the precise control of the temperature of refrigerator,
Lifting refrigerator performance.In addition, the control device simple structure, low cost.
In addition, the rotation speed of fan control device of refrigerator according to the above embodiment of the present invention can also have what is added as follows
Technical characteristic：
Further, also include：Analog to digital conversion circuit, analog-digital conversion circuit as described is located at the voltage collection circuit and institute
State between control chip.
Further, also include：Timer, the timer is connected with the control chip, and the timer often passes through
The scheduled time, the control chip control voltage collection circuit carries out the collection of primary voltage.
Further, the drive circuit is PWM drive circuit.
Further, the control chip is single-chip microcomputer.
The embodiment of third aspect present invention discloses a kind of refrigerator, including：The rotation speed of fan control of refrigerator as described above
Device processed.The refrigerator can obtain the running speed of blower fan according to the input voltage of the blower fan for collecting, so that drive circuit being capable of essence
Really the running speed to blower fan is adjusted, and the running speed of blower fan is accurately and reliably maintained near rotating speed of target, real
The precise control of the temperature of existing refrigerator, lifts refrigerator performance.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the flow chart of the rotation speed of fan control method of refrigerator according to an embodiment of the invention；
Fig. 2 is the structured flowchart of the rotation speed of fan control device of refrigerator according to an embodiment of the invention；With
Fig. 3 is the structured flowchart of the rotation speed of fan control device of refrigerator in accordance with another embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark
Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Limitation of the invention.Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative
Importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
With reference to following description and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.In these descriptions
In accompanying drawing, specifically disclose some particular implementations in embodiments of the invention to represent implementation implementation of the invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.Conversely, of the invention
Embodiment includes all changes, modification and the equivalent that fall into the range of the spiritual and intension of attached claims.
Rotation speed of fan control method, device and refrigerator below in conjunction with Description of Drawings refrigerator according to embodiments of the present invention.
Fig. 1 is the flow chart of the rotation speed of fan control method of refrigerator according to an embodiment of the invention.As shown in figure 1,
The rotation speed of fan control method of refrigerator according to an embodiment of the invention, comprises the following steps：
Step S101：The input voltage of detection blower fan.
The input voltage of blower fan is obtained for example with voltage collection circuit.For example：The electricity being made up of resistance and comparator
Pressure Acquisition Circuit gathers the input voltage of blower fan.The input voltage of blower fan refers to the voltage of the drive signal for driving fan operation.
Step S102：The running speed of blower fan is obtained according to input voltage.
The rotating speed of blower fan changes with the difference of the input voltage of blower fan, therefore, it can the input voltage according to blower fan
It is calculated the running speed of blower fan.For example：Using multiple different input voltages as input by way of experiment, detect
The running speed of blower fan, is correspondingly formed the running speed of blower fan and input voltage a table of comparisons and stores in refrigerator, this
Sample, after the input voltage for detecting blower fan, can call the table of comparisons, find blower fan corresponding with the input voltage
Running speed.
Step S103：Rotating speed of target according to blower fan adjusts the running speed of blower fan, maintains the running speed of blower fan
Rotating speed of target.
As a specific example, including：
1st, the rotating speed of target of blower fan and the running speed of blower fan are compared.
If the 2nd, the difference between the rotating speed of target of blower fan and the running speed of blower fan be located at preset rotation speed error range it
Outward, then the running speed at interval of scheduled time control blower fan changes preset rotation speed, until the rotating speed of target of blower fan and blower fan
Difference between running speed is located within preset rotation speed error range.In this example, it is assumed that the target of inner blower per minute
The running speed of rotating speed and blower fan is differed within 20 turns, it is believed that the difference between the rotating speed of target of blower fan and the running speed of blower fan
Value is located within preset rotation speed error range, i.e., using one minute as standard, then preset rotation speed error range be but be not limited to [-
20 turns, 20 turns].
Embodiment described above, if the difference between the running speed and rotating speed of target of blower fan is larger, can pass through
Repeatedly adjustment, so that the running speed of blower fan maintains rotating speed of target.For example：Rotating speed of target is 1200 revs/min, is examined within every 30 seconds
The input voltage of primary air fan is surveyed, every time 20 revs/min of rotating speed of adjustment.If now actual speed is 1100 revs/min, can lead to
5 adjustment are crossed, the running speed of blower fan is adjusted to being differed with rotating speed of target within ± 20 revs/min.So, blower fan can
Operate under constant input voltage, blower fan is run under being maintained at rotating speed of target.
The rotation speed of fan control method of refrigerator according to embodiments of the present invention, the feedback of the input voltage according to blower fan can
To obtain the running speed of blower fan such that it is able to which accurately the running speed to blower fan is adjusted, make the running speed of blower fan
Accurately and reliably maintain near rotating speed of target, realize the precise control of the temperature of refrigerator, lift refrigerator performance.
Fig. 2 is the structured flowchart of the rotation speed of fan control device of refrigerator according to an embodiment of the invention.Such as Fig. 2 institutes
Show, the rotation speed of fan control device 200 of refrigerator according to an embodiment of the invention, including：Drive circuit 210, voltage acquisition
Circuit 220 and control chip 230.
Wherein, drive circuit 210 is connected with blower fan 240, to drive blower fan 240 to run.The detection of voltage collection circuit 220
End is connected with the connecting line between drive circuit 210 and blower fan 240, with the input voltage of detection blower fan 240.Control chip 230
It is connected with drive circuit 210 and voltage collection circuit 220 respectively, to obtain the running speed of blower fan 240 according to input voltage, and
Rotating speed of target according to blower fan 240 adjusts the running speed of blower fan 240 by drive circuit 210, makes the running speed of blower fan 240
Maintain rotating speed of target.Wherein, drive circuit 210 is, for example, pulse-width modulation PWM drive circuit.
Specifically, voltage collection circuit 220 is, for example, the voltage collection circuit 220 being made up of resistance and comparator.Wind
The input voltage of machine 240 refers to the voltage of the drive signal for driving the operation of blower fan 240.The rotating speed of blower fan 240 is defeated with blower fan 240
Enter the difference of voltage and change, therefore, it can be calculated according to the input voltage of blower fan 240 running speed of blower fan 240.Example
Such as：Using multiple different input voltages as input by way of experiment, the running speed of blower fan 240 is detected, by blower fan
240 running speed is correspondingly formed a table of comparisons with input voltage and storage is in control chip 230, so, when detecting
After the input voltage of blower fan 240, control chip 230 can call the table of comparisons, find wind corresponding with the input voltage
The running speed of machine 240.
In one embodiment of the invention, control chip 230 is, for example, single-chip microcomputer, with safe and reliable and low cost
Advantage.
In one embodiment of the invention, control chip 230 is for example in the following way to the running speed of blower fan 240
It is controlled.Specifically：
1st, the rotating speed of target of blower fan 240 and the running speed of blower fan 240 are compared.
If the 2, the difference between the running speed of the rotating speed of target of blower fan 240 and blower fan 240 is located at preset rotation speed error
Outside scope, then the running speed at interval of scheduled time control blower fan 240 changes preset rotation speed, until the target of blower fan 240
Difference between the running speed of rotating speed and blower fan 240 is located within preset rotation speed error range.In this example, it is assumed that every point
The rotating speed of target of clock inner blower 240 and the running speed of blower fan 240 are differed within 20 turns, it is believed that the rotating speed of target of blower fan 240
And the difference between the running speed of blower fan 240 is located within preset rotation speed error range, i.e., using one minute as standard, then in advance
If speed error scope is but is not limited to [- 20 turns, 20 turns].
Embodiment described above, if the difference between the running speed and rotating speed of target of blower fan 240 is larger, can lead to
Repeatedly adjustment is crossed, so that the running speed of blower fan 240 maintains rotating speed of target.For example：Rotating speed of target is 1200 revs/min, often
30 seconds input voltages of detection primary air fan, adjust 20 revs/min of rotating speed every time.If now actual speed is 1100 revs/min
Clock, can by 5 times adjustment, by the running speed of blower fan 240 adjust to differ with rotating speed of target be located at ± 20 revs/min within.
So, blower fan 240 may operate under constant input voltage, blower fan 240 is run under being maintained at rotating speed of target.
As shown in figure 3, the rotation speed of fan control device 200 of the refrigerator of the embodiment of the present invention also includes：Analog to digital conversion circuit
250 (such as A/D converters), analog to digital conversion circuit 250 is located between voltage collection circuit 220 and control chip 230.That is modulus
Change-over circuit 250 can be converted to after data signal by control chip 230 analog signal that voltage collection circuit 220 is collected
Processed.So as to the input voltage for facilitating control chip 230 to be collected using voltage collection circuit 220.
With reference to shown in Fig. 3, the rotation speed of fan control device 200 of the refrigerator of the embodiment of the present invention also includes：Timer 260,
Timer 260 is connected with control chip 230, and often by the scheduled time (such as 30 seconds), control chip 230 controls electricity to timer 260
Pressure Acquisition Circuit 220 carries out the collection of primary voltage.For example：Rotating speed of target is 1200 revs/min, every 30 seconds detection primary air fans
Input voltage, every time adjustment 20 revs/min of rotating speed.If now actual speed is 1100 revs/min, can be adjusted by 5 times,
The running speed of blower fan 240 is adjusted to being differed with rotating speed of target within ± 20 revs/min.So, blower fan 240 can run
Under constant input voltage, blower fan 240 is set to be run under being maintained at rotating speed of target.
The rotation speed of fan control device of refrigerator according to embodiments of the present invention, according to the blower fan that voltage collection circuit is collected
Input voltage, the running speed of blower fan can be obtained, so that the running speed that drive circuit can be accurately to blower fan is carried out
Adjustment, makes the running speed of blower fan accurately and reliably maintain near rotating speed of target, realizes the precise control of the temperature of refrigerator,
Lifting refrigerator performance.In addition, the control device simple structure, low cost.
Embodiment of the invention discloses that a kind of refrigerator, including：The rotation speed of fan control of the refrigerator as described in above-mentioned embodiment
Device processed.The refrigerator can obtain the running speed of blower fan according to the input voltage of the blower fan for collecting, so that drive circuit being capable of essence
Really the running speed to blower fan is adjusted, and the running speed of blower fan is accurately and reliably maintained near rotating speed of target, real
The precise control of the temperature of existing refrigerator, lifts refrigerator performance.
In addition, other of the refrigerator of the embodiment of the present invention are constituted and effect is all for a person skilled in the art
It is known, in order to reduce redundancy, do not repeat.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is by claim and its equivalent limits.
Claims (8)
1. the rotation speed of fan control method of a kind of refrigerator, it is characterised in that comprise the following steps：
The input voltage of detection blower fan；
The running speed of the blower fan is obtained according to the input voltage,；And
Rotating speed of target according to the blower fan adjusts the running speed of the blower fan, the running speed of the blower fan is maintained institute
Rotating speed of target is stated, is further included：
Compare the rotating speed of target of the blower fan and the running speed of the blower fan；
If the difference between the running speed of the rotating speed of target of the blower fan and the blower fan is located at preset rotation speed error range
Outside, then control the running speed of the blower fan to change preset rotation speed at interval of the scheduled time, until the target of the blower fan turns
Difference between the running speed of fast and described blower fan is located within the preset rotation speed error range.
2. the rotation speed of fan control method of refrigerator according to claim 1, it is characterised in that the input voltage of the blower fan
Obtained by voltage collection circuit.
3. the rotation speed of fan control device of a kind of refrigerator, it is characterised in that including：
Drive circuit, the drive circuit is connected with blower fan, to drive the fan operation；
Voltage collection circuit, the connecting line between the test side of the voltage collection circuit and the drive circuit and the blower fan
It is connected, to detect the input voltage of the blower fan；
Control chip, the control chip is connected with the drive circuit and the voltage collection circuit respectively, with according to described
Input voltage obtains the running speed of the blower fan, and adjusts institute by the drive circuit according to the rotating speed of target of the blower fan
The running speed of blower fan is stated, the running speed of the blower fan is maintained the rotating speed of target；
Wherein, the rotating speed of target of the blower fan adjusts the running speed of the blower fan by the drive circuit, makes the blower fan
Running speed maintain the rotating speed of target and further include：
Compare the rotating speed of target of the blower fan and the running speed of the blower fan；
If the difference between the running speed of the rotating speed of target of the blower fan and the blower fan is located at preset rotation speed error range
Outside, then control the running speed of the blower fan to change preset rotation speed at interval of the scheduled time, until the target of the blower fan turns
Difference between the running speed of fast and described blower fan is located within the preset rotation speed error range.
4. the rotation speed of fan control device of refrigerator according to claim 3, it is characterised in that also include：Analog-to-digital conversion electricity
Road, analog-digital conversion circuit as described is located between the voltage collection circuit and the control chip.
5. the rotation speed of fan control device of refrigerator according to claim 3, it is characterised in that also include：Timer, it is described
Timer is connected with the control chip, and often by the scheduled time, the control chip controls the voltage to adopt to the timer
Collector carries out the collection of primary voltage.
6. the rotation speed of fan control device of the refrigerator according to claim any one of 3-5, it is characterised in that the driving electricity
Road is PWM drive circuit.
7. the rotation speed of fan control device of the refrigerator according to claim any one of 3-5, it is characterised in that the control core
Piece is single-chip microcomputer.
8. a kind of refrigerator, it is characterised in that including：The rotation speed of fan control dress of the refrigerator as described in claim any one of 3-7
Put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636651.XA CN104373368B (en) | 2014-11-12 | 2014-11-12 | Draught fan rotating speed control method and device for refrigerator and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410636651.XA CN104373368B (en) | 2014-11-12 | 2014-11-12 | Draught fan rotating speed control method and device for refrigerator and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104373368A CN104373368A (en) | 2015-02-25 |
| CN104373368B true CN104373368B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410636651.XA Active CN104373368B (en) | 2014-11-12 | 2014-11-12 | Draught fan rotating speed control method and device for refrigerator and refrigerator |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729193B (en) * | 2015-03-31 | 2017-08-29 | 海信容声(广东)冰箱有限公司 | The method and device that blower fan speed stabilizing works in a kind of control wind cooling refrigerator |
| CN105020858B (en) * | 2015-07-31 | 2018-02-06 | 广东美的暖通设备有限公司 | The stepless speed regulating method and device of indoor DC fan in air conditioner and air conditioner |
| CN107084147B (en) * | 2017-06-05 | 2018-10-16 | 广东美的暖通设备有限公司 | Wind turbine guard method, wind turbine protection system and wind turbine |
| CN112032916B (en) * | 2020-08-24 | 2021-05-25 | 珠海格力电器股份有限公司 | Motor control system and air conditioner |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6380704B1 (en) * | 1999-05-10 | 2002-04-30 | Silicon Touch Technology Inc. | Fan linear speed controller |
| US8905721B2 (en) * | 2002-07-12 | 2014-12-09 | Delta Electronics Inc. | Fan control system using a microcontroller |
| TWI224417B (en) * | 2003-07-22 | 2004-11-21 | Delta Electronics Inc | Fan motor speed control circuit |
| CN1657787A (en) * | 2004-02-21 | 2005-08-24 | 华为技术有限公司 | Method and device for control speed of fan |
| CN1680727A (en) * | 2004-04-05 | 2005-10-12 | 奇鋐科技股份有限公司 | Controlling circuit of low-voltage high rotating speed rotation with high-voltage activation for DC fan motor |
| TWM289021U (en) * | 2005-09-23 | 2006-03-21 | Tze-Chiuan Lin | Simplified temperature controller of cooling fan |
| CN101451783B (en) * | 2007-12-04 | 2012-10-24 | 苏州三星电子有限公司 | Novel fridge and control method thereof |
| CN102269173B (en) * | 2011-06-10 | 2016-06-08 | 海信（山东）冰箱有限公司 | The control device of a kind of direct current fan for refrigerator and method thereof |
| KR20140124682A (en) * | 2013-04-17 | 2014-10-27 | 위니아만도 주식회사 | Method for controlling rotation speed of cooling fan |
| CN204327551U (en) * | 2014-11-12 | 2015-05-13 | 合肥美的电冰箱有限公司 | The rotation speed of fan control gear of refrigerator and refrigerator |
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2014
- 2014-11-12 CN CN201410636651.XA patent/CN104373368B/en active Active
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