CN101705602A - Control device of washing machine - Google Patents
Control device of washing machine Download PDFInfo
- Publication number
- CN101705602A CN101705602A CN200910208628A CN200910208628A CN101705602A CN 101705602 A CN101705602 A CN 101705602A CN 200910208628 A CN200910208628 A CN 200910208628A CN 200910208628 A CN200910208628 A CN 200910208628A CN 101705602 A CN101705602 A CN 101705602A
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- washing machine
- unit
- control device
- voltage
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/10—Power supply arrangements, e.g. stand-by circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention relates to a control device of a washing machine, which is characterized in that the control device of the washing machine is provided with a DC stabilization unit which maintains a DC link voltage at a certain value according to input voltage, input current and DC link voltage or is provided with the DC stabilization unit including the power factor compensation unit. The input power supply of the washing machine is maintained at a certain level at the circumstance of unstable power supply such as overvoltage or instant power failure, thereby, improving the system stability, and the using convenience; and simplifying the manufacturing.
Description
Technical field
The present invention relates to the control device of washing machine, specifically relate to a kind ofly under unsettled zone of power supplys such as overvoltage or instantaneous power failure or situation, make the input power supply of washing machine keep the control device of the washing machine of certain size.
Background technology
Washing machine is a kind of household appliances that are used for clothing washs or oven dry etc. is handled.In general, washing machine is horizontal or vertical the differentiation by the inside groove of washings such as process clothes or the rotating shaft of cylinder,, can be divided into rotating shaft and be forward type or roller washing machine that vertical overhead type washing machine and rotating shaft are level that is.
The following function of washing machine general execution: the washings of throwing in washings applies mechanicalness effects such as suitable friction or vibration, and isolates pollutant from washings.Washing machine need be carried out following steps: the washing step that applies mechanicals efforts and washing to the washings that mixes with cleaning solution; From washings, isolate the cleaning step of the cleaning solution that contains pollutant; Isolate the dehydration of rinse water from washings.Fig. 1 is the sectional view of the structure of general roller washing machine.As shown in the figure, be provided with in the roller washing machine with lower member: the inner shell 11 that forms spatial accommodation; Wash bucket 21 in the direction setting forwards, backwards of the inside of shell 11; The rotatable cylinder 31 that holds the inside that is arranged at wash bucket 21.
Described shell 11 almost constitutes the lineal hexahedral shape, is formed with at the front panel of described shell 11 to be used to throw in the opening 13 that takes out washings, is provided with the door 15 that is used to open and close opening at the prolongation of opening 13.In the inside of shell 11 wash bucket 21 is installed, described wash bucket 21 constitutes the open drum of one side, and can hold washings in inside.And, be respectively arranged with support spring 25 and the damper 27 that is used to cushion the described wash bucket 21 of support at the upside and the downside of wash bucket 21.Rear end at wash bucket 21 is combined with support 23, and described support 23 is used to rotate the cylinder 31 of the inside setting of supporting described wash bucket 21.And one is combined with the drum drive motor 41 that is used to rotate head roll 31 in the side, rear of support 23.
In addition, the upper area of described wash bucket 21 is provided with can be to the not shown feed pipe and the feed-water valve of the internal feed washings of wash bucket 21, is provided with the draining stream 22 of the draining pump 24 that is used to discharge washings at its bottom section.Side at draining stream 22 is formed with circulation stream 26, and described circulation stream 26 is used to draw the washings of the inside of wash bucket 21, and makes its upper area circulation to wash bucket 21.And, in circulation stream 26, be provided with the circulating pump 28 that is used to aspirate washings.
By aforesaid structure, when the inside at cylinder 31 holds washings and supplies with washing agent and during washings, the control part (not shown) drives circulating pump 28 simultaneously with index drum drive motors 41 swing rollers 31, makes the washings circulation and carries out washing operation.When washing operation finishes, will control draining pump 24 and drum drive motor 41 is carried out draining and dehydrating operations successively, then,, and repeatedly carry out cleaning operation to the internal feed washings of wash bucket 21.
In addition, when washings is carried out dehydrating operations in the inside of cylinder 31 with the state of laying particular stress on setting, damage takes place and forces wearing and tearing in the supporting construction (not shown) of the cylinder 31 that causes in order to prevent laying particular stress on of washings, wash bucket 21 and cylinder 31, before dehydrating operations, detect the offset of cylinder 31, then, be that a reference value is carried out dehydrating operations when following at offset.
But, in the control device of the washing machine of prior art,, and cause the control device damage because power supply instabilities such as overvoltage or instantaneous power failure can't insert power supply to washing machine normally.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide a kind of voltage can supply with the control device of the washing machine of certain voltage by the compensation smmothing capacitor.
For achieving the above object, the present invention is achieved by the following technical solutions:
The control device of washing machine is characterized in that the control device of described washing machine includes with lower member:
Be used for the AC power commonly used of input is converted to the transverter of dc source;
Be used for smoothly from the smooth unit of the dc source of described transverter output;
Be used for to be converted to the inverter module of motor drive power supply from the dc source of aforementioned smooth unit output.
The control device of aforesaid washing machine is characterized in that described transverter utilizes diode rectifier etc. will use AC power always and is converted to dc source.
The control device of aforesaid washing machine is characterized in that described smooth unit is made of capacitor or the simple circuit that comprises capacitor, is used to store and smoothly from the dc source of described transverter output.
The control device of aforesaid washing machine is characterized in that described inverter module and aforementioned smooth unit are connected in parallel, and it is used for the dc source from aforementioned smooth unit output is converted to motor drive power supply, and supplies in the motor or load of washing machine.
The invention has the beneficial effects as follows: the DC stabilization unit is connected in the voltage of the front end of smooth unit, thereby under unsettled zone of power supplys such as overvoltage or instantaneous power failure or situation, can supplies with certain input voltage to washing machine with the compensation smooth unit.And, the DC stabilization unit of externally positioned type can be carried out the dismounting setting in comprising the control device of smooth unit, thereby can improve the convenience in user's use, and can improve the reliability of product.
Description of drawings
Fig. 1 is the simple knot composition of the structure of general washing machine;
Fig. 2 is the simple block diagram of structure of the control device of the washing machine among the present invention;
Fig. 3 is the rough schematic of structure of the control device of the washing machine in another embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done concrete being described below:
As shown in Figure 2, include with lower member in the control device of washing machine of the present invention: the transverter 200 that is used for the AC power commonly used of input is converted to dc source; Be used for smoothly from the smooth unit 300 of the dc source of described transverter output; Be used for to be converted to the inverter module 600 of motor drive power supply from the dc source of aforementioned smooth unit output; Reach from the dc tache voltage of aforementioned smooth unit output according to input voltage that is input to aforementioned smooth unit and input current, will make the DC stabilization unit 500 of the certain size of described dc tache voltage maintenance.And, also include in the present invention: the control module 400 that drives described inverter module by the output control signal.
Described transverter 200 utilizes diode rectifier etc. will use AC power 100 always and is converted to dc source.
Described smooth unit 300 is made of capacitor or the simple circuit that comprises capacitor, and it is used to store and smoothly from the dc source of described transverter 200 outputs.
Described inverter module 600 is connected in parallel with aforementioned smooth unit 300, and it is used for the dc source from aforementioned smooth unit 300 outputs is converted to motor drive power supply, and supplies in the motor or load 700 of washing machine.
Described control module 400 detects the motor of described washing machine or the state of load, and send the inverter controlling signal to described inverter module 600, and dc source is converted to motor drive power supply by described inverter module 600 according to described motor operating state.Wherein, described inverter controlling signal generally is the pulse-width signal that is used to control the pwm voltage duty of described inverter module 600.
Described DC stabilization unit 500 is connected between described transverter 200 and the aforementioned smooth unit 300, and it is used to make from the dc tache voltage maintenance certain size of aforementioned smooth unit 300 to described inverter module 600 outputs.At this, described DC stabilization unit 500 can be arranged in parallel in advance between described transverter 200 and aforementioned smooth unit 300, the form setting with external device (ED) that also can be independent.Under the situation that constitutes externally positioned type DC stabilization unit 500, as long as other slot or connector are set in general control device, in supplying with the zone of normal voltage, need not to connect the DC stabilization unit and use, but, in low-voltage or the unsettled zone of input power supply take place, can connect DC stabilization unit and use.
And, in described DC stabilization unit 500, include and be used to compensate from the switch unit (not shown) of aforementioned smooth unit 300 to the described dc tache voltage of described inverter module 600 outputs, wherein, described switch unit can be igbt or the element that has identical functions with it.Described switch unit switches according to detected dc tache voltage, and make voltage keep certain size, when described dc tache voltage is to be used to drive the required voltage of described washing machine when following, the unlatching cycle that lengthening is kept described switch unit, to improve input voltage and to keep certain value (for example 310V), when described dc tache voltage is above greater than reference voltage, the unlatching cycle that keeps described switch unit will be shortened, to reduce input voltage and to keep certain value (for example 310V).
As shown in Figure 3, include with lower member in the control device of the washing machine of another embodiment of the present invention: the transverter 200 that is used for the AC power commonly used 100 of input is converted to dc source; Be used for smoothly from described transverter 200; The smooth unit 300 of the dc source of output; Be used for to be converted to the inverter module 600 of motor drive power supply from the dc source of aforementioned smooth unit 300 outputs; Make from the DC stabilization unit 500 of aforementioned smooth unit 300 to the certain size of the dc tache voltage maintenance of described inverter module 600 outputs.Wherein, in described DC stabilization unit 500, include: according to described dc tache voltage be input to the input voltage of aforementioned smooth unit and input current and the power factor compensation unit 520 of compensation power factor.And, also include in the present invention: the control module 400 that drives described inverter module by the output control signal.
Described transverter 200 utilizes diode rectifier etc. will use AC power 100 always and is converted to dc source.
Described smooth unit 300 is made of capacitor or the simple circuit that comprises capacitor, and it is used to store and smoothly from the dc source of described transverter 200 outputs.
Described inverter module 600 is connected in parallel with aforementioned smooth unit 300, and it is used for the dc source from aforementioned smooth unit 300 outputs is converted to motor drive power supply, and supplies in the motor or load 700 of washing machine.
Described control module 400 detects the motor of described washing machine or the state of load, and send the inverter controlling signal to described inverter module 600, and dc source is converted to motor drive power supply by described inverter module 600 according to described motor operating state.Wherein, described inverter controlling signal generally is the pulse-width signal that is used to control the pwm voltage duty of described inverter module 600.
Described DC stabilization unit 500 is connected between described transverter 200 and the aforementioned smooth unit 300, it is used to make from the dc tache voltage maintenance certain size of aforementioned smooth unit 300 to described inverter module 600 outputs. at this, described DC stabilization unit 500 can be arranged in parallel in advance between described transverter 200 and aforementioned smooth unit 300, form setting that also can be independent with external device (ED). under the situation that constitutes externally positioned type DC stabilization unit 500, as long as other slot or connector are set in general control device, in supplying with the zone of normal voltage, need not to connect the DC stabilization unit and use, but, in low-voltage or the unsettled zone of input power supply take place, can connect DC stabilization unit and use.
And, in described DC stabilization unit 500, include power factor compensation unit 520, it is the dc tache voltage that charges in the capacitor according to the output voltage of aforementioned smooth unit 300, by the input voltage of described DC stabilization unit 500, and be input to the input current of aforementioned smooth unit 300 and the compensation power factor from described transverter 200 to 300 inputs of aforementioned smooth unit.
And, in described control device, also include in the described DC stabilization unit 500: the switching driver element 510 that generates the power factor compensation signal according to described dc tache voltage and described input voltage and input current.That is, described switch unit 522 will drive by described switching driver element 510, and will prolong or shorten the cycle of the voltage of input in the aforementioned smooth unit 300, thereby make dc tache voltage keep certain size.
In described power factor compensation unit 520, comprise reactor 521, switch unit 522 and diode 523.Wherein, described switch unit 522 can be igbt or the element that has identical functions with it.Described switch unit 522 changes the cycle of the voltage of input in the aforementioned smooth unit 300 according to the driving signal of described switching driver element 510, thereby makes described dc tache voltage keep certain size.Because described switch unit 522 drives with high-frequency mode, when the handover operation of described switch unit 522, described reactor 521 will play the effect of current source.Promptly, when described switch unit 522 is opened, in described reactor 521, will insert whole voltages by described transverter 200 conversions, the reactor electric current rises linearity, in addition, when described switch unit 522 is closed, described diode 523 will be switched on, with the difference size identical voltage of access with input voltage and output voltage, the reactor electric current reduces linearity in described reactor.When described dc tache voltage is to be used to drive the required voltage of described washing machine when following, the unlatching cycle that lengthening is kept described switch unit, to improve input voltage and to keep certain value (for example 310V), in addition, when increasing, described dc tache voltage is reference voltage when above, the unlatching cycle that keeps described switch unit will be shortened, to reduce input voltage and to keep certain value (for example 310V).
Described switching driver element 510 is used to generation to drive the switching driving signal of described power factor compensation unit 520, in Fig. 3, described switching driver element 510 is made of other structure, and still, it can be contained in described power factor compensation unit 520 or the described control module 400.
Below, will the driving of described switching driver element 510 and power factor compensation unit 520 be described.The output dc tache voltage and the benchmark output voltage of aforementioned smooth unit 300 are compared, and calculate the output voltage improper value, with the voltage and the current conversion of input in described output voltage improper value and the aforementioned smooth unit 300 is corresponding voltage value, and drives signal by the described switching of certain calculating generation.In described certain calculating, can use different coefficients, different account forms according to element etc.In described dc tache voltage, input voltage, input current etc., multiply by certain coefficient, after described value calculated by arithmetic, with be used to generate switch drive signal a reference value relatively, when being a reference value when above, will generate described switching driving signal.Switching according to described generation drives signal, utilizes the switching driving element to open and close described power factor compensation unit 520, thereby makes dc tache voltage keep certain size.
Also can include in the control device of washing machine of the present invention: be used to remove noise filter from the noise of described AC power 100 inputs commonly used. in general, have noise respectively at normal mode and common mode, the common mode noise that takes place between the normal mode noise that takes place in the signal transmssion line and ground and the transmission line promptly is described noise. when having the normal mode noise, because signal itself also is a normal mode, on characteristics of signals, will be difficult to distinguish signal and noise, promptly, can't separate noise and signal and have to signal. therefore, prevent that importantly the normal mode noise from loading in the signal, at the frequency band of noise and signal not simultaneously, can utilize wave filter to separate, when noise has than the high frequency band of signal, to use low pass filter, when being low-frequency band, to use high-pass filter. under the situation of common mode noise, can utilize the pattern of signal and noise mutually different and it is separated, the common mode noise will not change along with the change of earthing potential, but influenced by the impedance ground of auto levelizer or the unbalanced of line, described noise filter will be removed described common mode noise, or remove the normal mode noise as required.
As mentioned above, in the control device of washing machine of the present invention, be provided with according to input voltage that is input to aforementioned smooth unit and input current and reach the DC stabilization unit that makes the certain size of dc tache voltage maintenance from the dc tache voltage of aforementioned smooth unit output, or be provided with the DC stabilization unit that comprises the power factor compensation unit, thereby under unsettled zone of power supplys such as overvoltage or instantaneous power failure or situation, make the input power supply of washing machine keep certain size.And, to make described DC stabilization unit constitute the removable externally positioned type that is loaded on the front end of aforementioned smooth unit, thereby under unsettled zone of power supplys such as overvoltage or instantaneous power failure or situation, make the input power supply of washing machine keep certain size, can improve the stability of system thus, and the convenience in user's use, and can make easily.
Only the situation of washing machine is described in the present invention, still, the present invention also can be equally applicable to have in the car washing installations such as dryer of similar characteristics with it.And, though in Fig. 1, illustrate the structure of roller washing machine,, the present invention also can be equally applicable in the washing machine of other kind.
Described embodiment does not limit the present invention in any form, and all technical schemes that mode obtained of taking to be equal to replacement or equivalent transformation all drop in protection scope of the present invention.
Claims (8)
1. the control device of washing machine is characterized in that the control device of described washing machine includes with lower member:
Be used for the AC power commonly used of input is converted to the transverter of dc source;
Be used for smoothly from the smooth unit of the dc source of described transverter output;
Be used for to be converted to the inverter module of motor drive power supply from the dc source of aforementioned smooth unit output;
Reach from the dc tache voltage of described smooth unit output according to input voltage that is input to described smooth unit and input current, will make the DC stabilization unit of the certain size of described dc tache voltage maintenance.
2. the control device of washing machine according to claim 1 is characterized in that the input voltage that includes dc tache voltage in the described DC stabilization unit and be input to described smooth unit and input current and the power factor compensation unit of compensation power factor.
3. the control device of washing machine according to claim 2 is characterized in that also including dc tache voltage and described input voltage and input current in the described DC stabilization unit and the switching driver element that generates power compensation signal.
4. according to the control device of the described washing machine of claim 3, it is characterized in that including in the described switching driver element:
Detect the input voltage detecting unit of the input voltage that inserts in the described smooth unit;
Detect the input current detecting unit of the input current that inserts in the described smooth unit;
Detect the output dc voltage detecting unit of described dc tache voltage.
5. according to the control device of the described washing machine of claim 3, it is characterized in that including according to described power compensation signal in the described power factor compensation unit and drive, and the switch unit to compensating to the described dc tache voltage of described inverter module output from described smooth unit.
6. the control device of washing machine according to claim 1 is characterized in that the control device of described washing machine also includes the noise filter that is used to remove from the noise of described AC power input commonly used.
7. according to the control device of claim 1 any one described washing machine to the claim 6, it is removable to it is characterized in that described DC stabilization unit constitutes, and is arranged at the externally positioned type of described smooth unit front end.
8. the control device of washing machine according to claim 7 is characterized in that the control device of described washing machine also includes the control module of exporting control signal and driving described inverter module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090009029A KR101587101B1 (en) | 2009-02-04 | 2009-02-04 | Controlling apparatus for washing machine |
| KR10-2009-0009029 | 2009-02-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101705602A true CN101705602A (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910208628A Pending CN101705602A (en) | 2009-02-04 | 2009-10-19 | Control device of washing machine |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101587101B1 (en) |
| CN (1) | CN101705602A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430779A (en) * | 2021-07-14 | 2021-09-24 | 海信（山东）冰箱有限公司 | Control method and device of drum washing machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7129650B2 (en) * | 2019-03-22 | 2022-09-02 | パナソニックＩｐマネジメント株式会社 | Dryer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481781B1 (en) * | 1997-01-20 | 2005-07-11 | 주식회사 엘지이아이 | Safety control device for drum washing machine and its control method |
| KR100283898B1 (en) * | 1999-01-22 | 2001-02-15 | 구자홍 | Resurrection braking apparatus using voltage sensing of dc link for inverter washing machine |
| KR100308456B1 (en) * | 1999-07-09 | 2001-11-02 | 오길록 | Texture description method and texture retrieval method in frequency space |
| KR100339546B1 (en) * | 1999-07-20 | 2002-06-03 | 구자홍 | The power factor improvement and pulse amplitude modulation control circuit for inverter system |
-
2009
- 2009-02-04 KR KR1020090009029A patent/KR101587101B1/en active IP Right Grant
- 2009-10-19 CN CN200910208628A patent/CN101705602A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113430779A (en) * | 2021-07-14 | 2021-09-24 | 海信（山东）冰箱有限公司 | Control method and device of drum washing machine |
| CN113430779B (en) * | 2021-07-14 | 2022-09-06 | 海信冰箱有限公司 | Control method and device of drum washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101587101B1 (en) | 2016-01-20 |
| KR20100089680A (en) | 2010-08-12 |
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Open date: 20100512 |