CN204530226U - A kind of electric device of washing machine and the washing machine containing this device - Google Patents

Abstract

The utility model discloses a kind of electric device of washing machine and the washing machine containing this device, described electric device comprises power supply modulator, stator unit and permanent magnet rotor unit; The turning barrel of described washing machine is at least arranged a rotor unit group, each rotor unit group comprises at least 4 spaced rotor units, and all rotor units are identical around the pole orientation of turning barrel; Described stator unit at least installs one at frame fixed position, and its air gap relative to the periodicity of rotor unit is not more than 60mm; The power input electric connection of power supply of described power supply modulator, logic signal input end electrical connection control panel, the winding of sequential current output terminal electrical connection stator unit.Described washing machine at least arranges this electric device a set of.The utility model structure is simple, cost is low, and energy-saving effect is obvious.

Description

A kind of electric device of washing machine and the washing machine containing this device

Technical field

The utility model relates to the design field of washing machine, is specifically related to a kind of electric device structure of washing machine.

Background technology

Washing machine relates to the household electrical appliance of huge numbers of families, and energy-saving and emission-reduction are significant, and China has 200,000,000 washing machines at least according to estimates, if average every platform is monthly less with 1 degree of electricity, can save 2,400,000,000 degree of electricity every year.The washing machine of current China market mainly contains roller washing machine and rotary drum washing machine, and two large class washing machines respectively have its pluses and minuses.

Roller washing machine rises in Europe, laundering process imitates excellent hammering to beat clothing principle design, the mechanical work of motor is utilized to make drum rotating, clothing is constantly thrown by lifting in cylinder, promote again and throw again, do repeating motion, add that the acting in conjunction of washing powder and water makes clothes washing clean.Pulsator washing machine rises in Japan, operation principle drives impeller to rotate by motor, rely on the impeller positive and negative rotation be contained in bottom wash bucket, clothing is driven ceaselessly to overturn up and down, make between clothing, between clothing and bucket wall, mildly rub in water, under the effect of washing agent, realize decontamination cleaning.Pulsator washing machine has single barrel, cover bucket, twin-tub various ways, it is generally acknowledged to have the high advantage of relatively simple for structure, clean rate, but large to wear of clothes rate, many with water.

Market generally believe the advantage of roller washing machine be clothing without winding, washing evenly, wear rate is less than rotary drum washing machine by 10%, the clothings such as cashmere, wool, real silk can be washed, accomplish full scale wash, also can heat, washing powder is fully dissolved, gives full play of the decontamination usefulness of washing powder; Also can forming high concentration liquid detergent in bucket, bringing desirable laundry effect when economizing on water.Some roller washing machines are than rotary drum washing machine, and except laundry, dehydration, the functions such as degerming, the oven dry of sterilizing in addition, upper draining, meet different geographical and living environment consumer demand.The most outstanding advantage of tumbling-box washing machine have employed the water-saving technology controlling water yield size, and the standard water of general type washing machine washing 5KG clothing is 50L, is only 1/3 of pulsator washing machine.

Roller washing machine has consuming time and shortcoming that is power consumption, ordinary consumer consuming time can accept, and (laundry processes generally surpasses after an hour, pulsator washing machine about 40 minutes), but power consumption is open defect, although adopt converter technique can alleviate the inferior position of its power consumption, roller washing machine than other types washing machine more consumes power be undisputable fact.Although roller washing machine is known as the power consumption of normally washing at 200-400 watt, because when repeatedly dewatering, power consumption figure doubly increases (being directly proportional to rotating speed), if water temperature is added to 60 degree, wash one secondary more than 100 minutes, power consumption about 1.5 degree (be not counted in and dry institute's power consumption).By contrast, the power consumption of rotary drum washing machine is much smaller.

But no matter be roller washing machine or rotary drum washing machine, power consumption is all very considerable, and its power consumption is mainly on configured motor; In recent years since, technological development business generally attempts application PWQ technology to control motor speed, to scheme to reach the object reducing washing machine power consumption, but the basic ideas controlled are based upon on the architecture basics of existing motor usually, research and development main flow concentrates on the phase angle position control thought category that motor internal rotates.

Utility model content

The purpose of this utility model is to overcome existing washing machine adapted cellular construction motor, motor mode is confined to the design defect of inverter current direction and the control of phase angle position, a kind of design by power supply modulator, external power source being changed into sequential power supply mode is provided, electric device no longer adopts the traditional design of cellular construction motor simultaneously, structure is simple, torque is large, and technique easily realizes.

The electric device of a kind of washing machine that the utility model provides, described electric device comprises power supply modulator 1, stator unit 3a and permanent magnet rotor unit 3b; The turning barrel 5 of described washing machine is arranged at least one rotor unit group, each rotor unit group comprises at least 4 spaced rotor unit 3b, and the pole orientation that all rotor units are arranged around turning barrel is identical; Described stator unit 3a at least installs one at frame 4 fixed position near turning barrel outer rim, and air gap 3d relative to the periodicity that rotor unit 3b is formed is not more than 60mm;

Described power supply modulator 1 comprises power input 1a, logic signal input end 1d and sequential current output terminal 1b, its power input electric connection of power supply 10, the inside winding of sequential current output terminal electrical connection stator unit 3a; The inner winding power of described power supply modulator 1 couple of stator unit 3a makes stator unit form the direction of electromagnetic pole, is set to contrary with the polarity that permanent magnet rotor unit 3b moves in opposite directions; The corresponding output timing electric current of the inside winding of described power supply modulator to stator unit, realizes the driving/braking of described electric device.

Preferably, described power supply 10 comprises regular alternating current electricity and the direct current through rectification thereof, and any electrical storage device.

Preferably, described at least 4 rotor unit 3b around turning barrel 5 homopolarity to setting, comprise N/S the two poles of the earth line 9 to overlap with the coaxial normal of turning barrel 7/vertical 4 kinds of typical combination states, and line deflection in N/S the two poles of the earth is no more than 25 degree of angles on 4 kinds of typical combination state bases; Described permanent magnet is that classes such as conventional magnet steel, neodymium iron boron are with fixed magnetic pole and the material that do not change because of external magnetic field of pole orientation.

Preferably, the described rotor unit 3b position be arranged on turning barrel comprises and is entrenched in turning barrel outer rim, inner edge or inner and carry out integrated design manufacture with turning barrel; Rotor unit does not limit shape not affecting under the prerequisite being installed on turning barrel, and multiple combination is preferably evenly arranged.

Preferably, described stator unit 3a is formed by least one group of good wire wounded core, and its Inside coil winding can connect by series, parallel arbitrarily, or by drawing the multi-thread external loop of centre tap composition between different winding; The mode of external electrical connection can be the loop of two lines or multi-thread formation;

Preferably, electromagnetic pole the two poles of the earth line 9 that the inner winding of described stator unit 3a or some stator units combination energising are formed is vertical with the normal 7 of turning barrel 5 or overlap, and comprises deflection and is no more than 25 degree of angles;

Preferred, several stator units 3a in the frame 4 fixed position any combination arrangement near turning barrel 5, can comprise some described stator unit 3a and installs around the frame opposite site symmetry of turning barrel; The electromagnetic pole direction of multiple stator unit arrangement combination is arranged, and follows the principle that the magnetic pole in opposite directions that to move with rotor unit 3b is contrary.

Preferably, described electric device also comprises sensing device, and described sensing device comprises some sensing unit 3c that can respond to described rotor unit 3b and stator unit 3a relative position, and its transducing signal input 1c ad hoc with described power supply modulator is electrically connected; Described electric device at least arranges a sensing unit in frame 4 inside;

Preferred, described sensing device also comprises the inside winding of stator unit, and described inner winding comprises the multi-thread external loop around being in series between the winding of stator unit magnetic core and some stator unit windings.

Preferably, described electric device also comprises the control panel 2 of the cpu logic system in combination of some selector switches and built-in control program, and it is electrically connected the logic signal input end 1d of described power supply modulator; The logic function of control panel 2 is independently arranged, and also the partial logic function of power supply modulator or whole logic function can be integrated in control panel.

In the utility model, the power supply 10 of outside is converted to sequential electric current by described power supply modulator 1, and the stator unit in electric device is energized and power-off with being limited at the time domain periodic of power supply modulator setting.

In the utility model, the described washing machine containing above-mentioned arbitrary electric device comprises turning barrel 5, frame 4, power supply 10 and at least arranges a set of electric device, and described turning barrel 5 is included in sleeping drum-type, the impeller-type placed vertically and the structure of tiltedly putting of putting in frame 4 inside; Described frame 4 is the box-like of the band air-tight movable window made of any shaped solid material, and described air-tight movable window is arranged on top or the side of frame; The horizontal cross-section of described frame 4 is square, rectangle, triangle, circle and other arbitrary shapes.

The invention also discloses a kind of electric device driving method of aforementioned washing machine, the method, according to the position relationship of described rotor unit 3a and described stator unit 3b, is rotated by power supply modulator output timing Current Control turning barrel;

Described sequential defines according to turning barrel direction of rotation, described sequential electric current arranges several make and break periods according to the useful effect interval of stator unit electromagnetic field on turning barrel in conjunction with the rotor unit number on turning barrel, and each make and break period comprises power supply time domain and power-off time domain; Described power supply time domain is positioned at the corresponding time period, described in the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in for rotor unit around axle tangential direction and electromagnetic force direction coincidence status suffered by it determined value; Power supply modulator 1 not output current in described power-off time domain.

Preferably, the sequential current strength that the rotating speed of described turning barrel exports according to power supply modulator defined in conjunction with time sequence frequency/cycle; Supply current not notch shape, frequency and the dutycycle of described power supply modulator.

Preferably, described power supply modulator at least comprises the different period of the day from 11 p.m. to 1 a.m territory of two sections of different current amplitudes in power supply time domain, and up time sequence be amplitude diminishes successively, and the amplitude in time domain of powering or its period of the day from 11 p.m. to 1 a.m territory linearly to be successively decreased relation with sequential; Or in 2 ^kto successively decrease relation, described index K value 0.65 to 0.9; Or be following relation: I _t/ A=(I ₀-I _g) wherein I ₀for the initial current strength that is energized, I _gfor the current strength of the end time that is energized.

Preferably, described method also comprises aligning step; Described aligning step be by stator unit and rotor unit periodically relative, the state that is in same normal of trapping gap ( be 0) as benchmark coordinate and fiducial time, when each forward of rotor unit is to reference seat timestamp, power supply modulator carries out a time and returns 0 calibration and record this cycle time, by comparing cycle time to reference seat target with rotor unit forward last time, thus know spin cycle time and the rotating speed of electric device, and control output current.

The invention also discloses the electric device braking method of described washing machine, the method is relative with the coaxial normal in stator unit place at described rotor unit convergence stator unit, rotor unit and in being in away from state at least one time domain, and the program output timing Current Control turning barrel 5 set by power supply modulator 1 is braked;

Described sequential defines according to turning barrel direction of rotation; The time domain of described rotor unit convergence stator unit is the corresponding time period of state, described in the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, described in for rotor unit around axle tangential direction and electromagnetic force direction coincidence status suffered by it determined value.

Preferably, described method also comprises aligning step, and described aligning step will be 0 as benchmark coordinate and fiducial time, know rotor unit convergence/relatively/away from the location status of stator unit by sensing device.

Preferably, described output current rate-determining steps comprises when the rotating speed of turning barrel does not reach setting value at Preset Time, and described power supply modulator strengthens the intensity of institute's output current automatically; And when turning barrel rotating speed or energising frequency reach the threshold value of setting, described power supply modulator reduces exported current strength or auto-breaking automatically.

The utility model, for the application characteristic of washing machine, implants the Technology of NC Programming optimized to power supply, specify that the sequential power-up period of electric device and work-based logic are formed, realize efficient electricity-saving.The electric device of the utility model washing machine does not resemble conventional motors and is designed to unit structural form in mechanical structure, described stator unit is connected and can be analogous to the stator of motor in frame, and described rotor unit and turning barrel combine the rotor that can be analogous to motor; With turning barrel Periodic Rotating, rotor unit and stator unit can form periodic magnetic interaction, because sensing device is always periodically responded to, power supply modulator can sentence from its signal obtained the relative position knowing rotor unit and stator unit, thus corresponding sending has the work-based logic that regular sequential electric current realizes washing machine.

The utility model has the advantage of: described electric device has the obvious energy-saving effect that sequential power supply control brings, the washing machine structure carrying out matched design with this scheme is simple, electric device can combine in turning barrel variation, cost is low, effectively adapts to the designing requirement of high-end energy-saving washer.

Accompanying drawing explanation

Fig. 1 is a kind of basic machine structural representation of the utility model electric device.

Fig. 2 a is that rotor unit arranges schematic diagram at a kind of magnetic pole of turning barrel.

Fig. 2 b is that rotor unit arranges schematic diagram at the another kind of magnetic pole of turning barrel.

Fig. 3 a is that stator unit winding two ends line is set to the schematic diagram vertical with turning barrel normal.

Fig. 3 b is the schematic diagram that stator unit winding two ends line is set to overlap with turning barrel normal.

Fig. 3 c be stator unit matrix around core top just to the structural representation of turning barrel inner edge.

Fig. 4 a be electromagnetic force suffered by rotor unit Directional Decomposition and around the dynamic angle of axle schematic diagram.

Fig. 4 b is the view that rotor unit and stator unit are in same normal.

Fig. 5 a is the groundwork logical schematic of power supply modulator.

Fig. 5 b is a kind of block combiner schematic diagram realizing the digital technology logic of power supply modulator.

Fig. 5 c is the another kind of work-based logic schematic diagram of power supply modulator.

Fig. 6 a is the time diagram of power supply modulator output current in periodicity break-make.

Fig. 6 b is that a kind of two rank constant currents taper off the electric current time diagram of relation.

Fig. 6 c is the time diagram of a kind of first rank current constant, the curved relation of successively decreasing of second order electric current.

Fig. 6 d is the time diagram of a kind of multi-stage current in relation of successively decreasing continuously.

Fig. 6 e is the pulse subset envelope schematic diagram of the curved relation of successively decreasing of a kind of amplitude.

Fig. 7 a is a kind of partial structurtes schematic diagram that a stator unit combines 8 rotor units.

Fig. 7 b is that turning barrel counterclockwise rotates corresponding a kind of cycle power on/off time domain schematic diagram.

Fig. 7 c is the one energising logical schematic that a stator unit combines 8 rotor units.

Fig. 8 is that turning barrel rotates corresponding a kind of cycle power on/off time domain schematic diagram clockwise.

Fig. 9 is a kind of partial structurtes schematic diagram that 4 stator units combine 12 rotor units.

Figure 10 a is structural representation turning barrel being arranged a rotor unit group.

Figure 10 b is structural representation turning barrel being arranged two rotor unit groups.

Accompanying drawing identifies:

1, power supply modulator; 1a, DC supply input; 1b, sequential current output terminal; 1c, induced signal input; 1d, logic signal input end; 2, control panel; 3a, stator unit; 3b, rotor unit; 3c, sensing unit; 3d, air gap; 4, frame; 5, turning barrel; 6, turning barrel axle center; 7, coaxial normal; 8, turning barrel tangent line; 9, winding the two poles of the earth line; 10, power supply; rotor unit is around axle normal angle.

Detailed description of the invention

Further the utility model is described in detail below in conjunction with drawings and Examples.

The bulk mechanical structure of a kind of electric device of washing machine described in the utility model as shown in Figure 1, this washing machine does not have cellular construction motor, the foundation structure of electric device comprises stator unit 3a and rotor unit 3b, stator unit is formed by least one group of good wire wounded core, good wire uses copper cash or copper facing aluminum core line usually, core material be known to the skilled person a kind of under magnetic fields internal state change and produce the material of stronger complementary field; Stator unit winding is more, and the magnetic conductivity of magnetic core is higher, stronger to the electromagnetic action of rotor unit.

When turning barrel 5 outer rim arranges a permanent magnet rotor unit 3b, its S pole-face is arranged in turning barrel; A stator unit 3a is arranged in the frame of turning barrel outer rim, and the N pole-face of its winding energising is to turning barrel inner edge; The air gap 3d that rotor unit and stator unit move relative is enough little, then rotor unit convergence energising stator unit time, its electromagnetic attracting force effect can be subject to and make turning barrel accelerated motion, as shown in Figure 2 a; In another embodiment, the S polar motion stator unit in opposite directions of rotor unit 3b, bucket direction of rotation is reversed corresponding thereto in the N pole of stator unit winding energising, and both magnetic action are similarly attracting, as shown in Figure 2 b; This stator unit electromagnetic pole and the attracting relation of rotor unit arrange the basic model of the electric device being the utility model washing machine.

In above-mentioned motion model, the electromagnetic force F that rotor unit 3b trapping gap is subject to can be analyzed to normal 10 direction F ₁₀with tangent line 11 direction F ₁₁, wherein contributive around axle to rotor unit is F ₁₁, rotor unit around axle and and the determined normal of axle and stator unit and the determined normal of axle be a dynamic angle as shown in fig. 4 a; Relevant to the plan of establishment of stator unit between the active region of electromagnetic force suffered by rotor unit, such as single column or the I-shaped stator unit electromagnetism line of force around core pass through the maximum of air gap, corresponding to the two poles of the earth line 12 and its normal 10 vertical (parallel with corresponding tangent line 11) residing for turning barrel of electromagnetic pole, as shown in Figure 3 a; The two poles of the earth line 12 that column or the I-shaped stator unit around core also can be set to electromagnetic pole overlaps with normal residing for it 10, as shown in Figure 3 b, selects when this set-up mode is generally the combination of multiple stator unit; Matrix is interval to the useful effect of rotor unit around the electromagnetic force of core stator unit, is positioned at around core top just to the two ends scope of turning barrel inner edge, as shown in Figure 3 c.

Rotor unit is on turning barrel when axle, and it overlaps with electromagnetic force F action direction suffered by trapping gap around axle tangential direction is a special state, now angle for definite value the useful effect of electromagnetic force suffered by rotor unit is interval, be positioned at to be 0 state be benchmark in lane place (described ± to define according to the direction of rotation of turning barrel).When when being 0, F ₁₀for maximum, F ₁₁be 0, now rotor unit opposing connection axle is without contribution, as shown in Figure 4 b.F ₁₁and F ₁₀be a pair shifting kinematic variables, its theoretical strong and weak conversion with for separation, status and appearance be with driving force F ₁₁be main, and status and appearance be with brake force F ₁₀be main.

The electric device actuation techniques scheme of the utility model washing machine is: power supply modulator is corresponding time domain power, all the other time domain power-off; When design object is for economize on electricity, preferably even time domain power; When needing the rotary inertia making full use of turning barrel, preferably even time domain power; Cause state with brake force F ₁₀be main, state energising has lost optimal design meaning to driving; The break-make time domain of this drive current as shown in Figure 6 a, wherein T ₁for power-on time, T ₂and T ₀be power-off time, (T ₁+ T ₂+ T ₀) constitute Timing driver current cycle T.The electric device braking technology scheme of the utility model washing machine is: the corresponding T of power supply modulator ₂and T ₀part time domain or all time domain be set to power supply, described T ₂for rotor unit is corresponding around axle time domain, described T ₀for rotor unit is away from the corresponding time domain of stator unit; In like manner, ? there is considerable tangential force F in state ₁₁, unhelpful to braking.

Above-mentioned basis the switching electric control of corresponding states, can approximate transform be that relative time controls, know because power supply modulator can be sentenced by timing alignment from to 0, i.e. (T ₁+ T ₂) time period, as long as setting T ₁with T ₂relative time, it is right to be namely similar to the switching electricity temporal scalable of corresponding state; Such as control corresponding extremely time domain power, can be similar to and be set as at (T ₁+ T ₂) time period initial 1/2 time domain, 1/2 time domain power-off afterwards; Work as control corresponding time domain to 0 is powered, and can be similar to and be set as at (T ₁+ T ₂) time period initial 2/3 time domain power-off, 1/3 time domain is powered afterwards; (T ₁+ T ₂) be one to the relevant amount of rotating speed of rotating, determine with the sequential current cycle time there will be deviation when speed change state, is in other words a kind of approximation control mode, because power supply modulator is corresponding be that 0 degree of state is provided with time calibration, must give and correcting in time in next cycle.

be the magnetic action hidden variable of stator unit and the rotor unit plan of establishment in an association electric device, after stator unit setting (comprising combination) scheme is determined, aobvious state position determined simultaneously, during actual design, normally use be 0 and for aobvious state position judge the one foundation of the inner relative position of electric device as sensing device; exact position be one to turning barrel radian, air-gap separation, stator unit around the relevant value of the parameters such as core shape and arrangement thereof, have multiple theoretical model, should through test inhabitant area during specific design.The corresponding work-based logic exporting driving or stalling current of power supply modulator can be realized by ordinary tap control circuit, and CPU also can be adopted to programme in conjunction with power model group circuit realiration, or the special chip adopting large scale integrated circuit technology to manufacture realizes.

The work-based logic transformation directive signal of power supply modulator normally obtains from the sensing unit 3c be connected in frame, as Fig. 5 a shows, common sensing unit is magnetoelectric induction winding, Hall element or photoelectric encoder etc., when rotor unit moves around axial period, the rate of change that sensing unit can obtain electric current (voltage) feeds back to power supply modulator, and power supply modulator is sentenced according to this induced signal the relative position of knowing rotor unit and correspondingly sent sequential electric current.According to operating accuracy and the reliability requirement of sensing unit, can one or several sensing units be set in frame, even be deformed into and obtain work-based logic transformation directive signal (as Fig. 5 c shows) from the mode of said stator unit Multiple coil feedback and the winding feedback mode of utilization stator unit two-wire wounded core, now the induced signal input of power supply modulator is corresponding built-in, and its response process proposes high requirement to the working procedure logic of power supply modulator.

T ₁time domain is attended by the F showing as brake force ₁₀, have one and drive the optimal selection problem with braking, useful work and power consumption/heat radiation, due to F ₁₀driving electric device is potential accumulated heat source, and cannot by F in Timing driver electric current ₁₀thorough separation, a kind of weakening F ₁₀on the preferred version that potential accumulated heat affects be: at T ₁in time domain, energising intensity/amplitude is set to successively decrease with sequential, this preferred version comprises the subset arranging m>=2 energising intensity sequential and successively decrease, the constant current that the constant current subset that such as, after arranging two sections strength ratio front rank in rank are little, 5 stage strengths successively decrease successively, utilize pulse digit technology to arrange subset etc. that m is 30,3K or 30K amplitude is successively decreased successively is formed.The technical scheme that energising intensity/amplitude is successively decreased with sequential is numerous, such as, be set to, with sequential linear decrease, also can be set to by maximum by 2 ^krelation sequential is successively decreased, and K span is the positive number of 0.65 to 0.9, etc.; Fig. 6 b is the design that a kind of two rank constant currents are successively decreased with sequential, Fig. 6 c is a kind of first rank current constant, the curved design of successively decreasing of second order electric current, Fig. 6 d is a kind of multi-stage current is the design of successively decreasing continuously, and the amplitude envelope of its multi-stage current intensity is more close preference relation, power savings is better; The amplitude envelope trend schematic diagram that Fig. 6 e successively decreases to be a kind of electric current of the sequential end time that is energized be not 0, therebetween intensity sequential.

Fig. 7 a is the structural representation sketch that a stator unit combines 8 rotor units, in turning barrel swing circle π stator unit respectively with 8 rotor unit generation magnetic action, the sequential electric current of power supply modulator is divided into 8 (T ₁+ T ₂+ T ₀) cycle, Fig. 7 b denotes a kind of T of setting when being π/8, be rotated counterclockwise the corresponding T in direction with turning barrel ₁, T ₂and T ₀the signal region of sequential, Fig. 7 c is the energising logical schematic of one of them cycle T.Rotor unit not arranges The more the better, and its number on turning barrel is limited to the interval corresponding space occupy-place of suffered stator unit electromagnetic force useful effect, otherwise the sequential current cycle that power supply modulator correspondence exports can be overlapping.

The moment of power supply modulator startup power supply and set electric current sequential directly define the direction of rotation of turning barrel, and Fig. 7 b states example for the corresponding counter clockwise direction of sequential current start interval arrange, the corresponding counter clockwise direction of turning barrel rotates; When sequential current start corresponds to for extremely for interval and arrange (described ± with be 0 and relatively define), then the corresponding clockwise direction of turning barrel rotates, Fig. 8 denote a kind of structure and Fig. 7 b roughly the same, and the corresponding T of turning barrel dextrorotation veer ₁, T ₂and T ₀the signal region of sequential.

Stator unit on turning barrel can arrange multiple, multiple stator unit turning barrel swing circle respectively with 8 rotor unit generation electromagnetic forces.Shown in Fig. 9 is 4 stator units structural representation sketches of a rotor unit group 12 rotor units on corresponding turning barrel in frame, and in turning barrel swing circle, power supply modulator will provide 12 cycles for (T for 4 stator units respectively ₁+ T ₂+ T ₀) sequential electric current, this combination proposes higher designing requirement to power supply modulator.8 stator units each 12 rotor units in two annular rings on points of two groups corresponding turning barrels in frame can be selected further, etc.In theory when H stator unit combination n rotor unit design, if power supply modulator is to H the discrete power supply of stator unit winding, need corresponding design n*H (T ₁+ T ₂+ T ₀) electric current sequential, programming will be very complicated; Therefore in the utility system design of multiple stator unit, preferred H stator unit winding electric tandem compound, or H stator unit winding is divided into some groups of external power supply modulators, the inside windings in series of such as 4 stator units, tap totally three external electric connection of power supply modulators of line are drawn in the middle of series connection winding, the difference of the differetial-potential that technically these three lines also can be utilized to compare between two, as a kind of signal source differentiating rotor unit relative position, substitutes the independent sensing unit arranged.

There is a kind of special state when static state starts in the utility model washing machine, when rotor unit be just in be in stator unit trapping gap same normal 7, when being 0, easily there is stall, solve by arranging static start-up routine to power supply modulator.The so-called static simple example starting sequential procedure can sentence based on sensing device to know it is the state of 0, when power supply modulator is when setting maximum time value and can not get sensing device feedback signal, send the starting current contrary with normal drive current direction in real time, make at least one rotor unit on turning barrel be subject to the like pole effect of repelling each other and depart from the state being in same normal with stator unit trapping gap, avoid starting not smoothly.

Also at turning barrel, multiple stator unit in a rotor unit and frame can be installed in theory to combine, though this equivalent arrangements can be implemented technically, but because of the cost of stator unit relatively high, not preferred scheme.

Power supply modulator can realize by ordinary tap circuit design or pulse digit technology, preferred the latter, the latter's fundamental functional modules generally comprises power converting circuit, the microprocessor of internal memory contain working procedure and signal input and output circuit, by the sequential electric current that the corresponding control driver module of sensing device feedback signal exports, carry out Dynamic controlling to electric device, Fig. 5 b is a kind of digital technology logic module combination schematic diagram realizing described basic function.

To sum up, described power supply modulator is a logic power switching system, sequential power cycles/frequency reflects unit interval inner stator unit 3a to the energization action number of times of rotor unit 3b, the rotating speed of this time sequence frequency remote definition turning barrel and the electromagnetic force (coming from power supply modulator to the energising of stator unit winding) required for stator unit, energising amplitude is larger, unit interval inner stator unit energising is larger to the active force of rotor unit, effect number of times is more, and the rotating speed that its result reflects turning barrel is faster.The time sequence frequency of power supply modulator institute output current, with (the T that turning barrel swing circle is implicit ₁+ T ₂+ T ₀) sequential effect number of times, energising mean intensity and rotating speed be mutually corresponding all physical quantity relations, after power supply modulator many imposes a condition and enter logic working state, controls the rotating speed that sequential energising frequency namely controls turning barrel.This rotating speed and working procedure control to be realized by the logic signal input end 1d of control panel 2 electric connection of power supply modulator, and power supply modulator can be arranged on optional position in frame.

Described washing machine can arrange a rotor unit group on turning barrel, as shown in Figure 10 a; Or two rotor unit groups are set, as shown in fig. lob; Also multiple rotor unit group can be set on turning barrel; Corresponding with the rotor unit group that annular on turning barrel is arranged, in frame 4, a corresponding rotor unit group at least arranges a stator unit; Many covers electric device that described washing machine is arranged, comprises and often overlaps rotor unit/stator unit correspondence and arrange a power supply modulator, also can overlap rotor unit/stator unit more and share a power supply modulator.

The control panel 2 of general washing machine comprises external some by the combination by formula switch and built-in cpu system, some inputs/setting interface the one_to_one corresponding of these external switchs and built-in cpu system program, by the combinations of states of switches some on control panel, the distinct program of washing machine work-based logic can be drawn, such as the parameter such as dip time, startup rotational time, time out, dewatering time, also can arrange the conventional standardization program performed continuously according to the convention of commercial product; This kind of standardization program and interface programming mode, existing washing machine product has designed comparatively perfect, for the application of the utility model washing machine, principle is the work-based logic corresponding according to the power supply feature-set of electric device, the conventional control function of control panel docking power supply modulator system is realized, the unified programming of shared data bus.Control panel also can be designed to the electronic induction switch control rule mode of non-mechanical, comprises remote control.

Stator unit arranges main points in frame, to make rotor unit with its formation, the necessary relative air gap 3d of magnetic action effectively occur in Periodic Rotating, this air gap is that stator unit transmits the energy channel of electromagnetic force to rotor unit, air gap is more little is more conducive to magnetic energy effect transmission, but the too small easy generation Mechanical Contact of air gap, needs comprehensive rigidity and the machining accuracy of holding material during design.

Preference described in this description is only recommendation, and some technical schemes may be combined with and use or part use, also can add other mature technologies.As long as according to the sequential electric current that the magnetic current feature of electric device can accurately control power supply modulator design, the basic fundamental target of the utility model scheme can be realized.

To the professional person that washing machine and motor technology are comparatively understood in depth, be all not difficult on scheme basis described in the utility model, be out of shape with drawing inferences about other cases from one instance and implement the utility model content.The electric device foundation structure of washing machine described in the utility model and the distortion of derivative technology thereof are implemented, and all should be put into protection domain of the present utility model.

Embodiment 1,

A kind of electricity-saving type pulsator washing machine, frame 4 horizontal cross-section is the square of length of side 450mm, be highly 550mm, and select girth to be 1000mm, to be highly the turning barrel 5 of 400mm, the design class of turning barrel bottom protrusion rib and conventional pulsator washing machine is together; Electric device is designed to the combination of 12 rotor unit 3b and 4 stator unit 3a, and its structural representation such as Fig. 9 shows; Washing machine external family expenses 220V AC power, is changed into the dc source of 48V, first meets the designing requirement of Household electric appliance safety first by conventional transformation/fairing.

Rotor unit selects high-quality magnet steel, be processed into the junior unit that thickness 2mm, length and width are 28mm, and these 12 permanent magnet rotor unit are processed as the arc corresponding to turning barrel outer rim, snugly fit into the outer rim of the turning barrel that stainless steel alloy material is made, the S of 12 rotor units is extremely all set to counterclockwise, be arranged on the 0.618 golden section place of designed peak level to bottom around turning barrel, interval is on average arranged; Stator unit 3a selects channel magnet around core, an additional V-arrangement accessory around core bottom, accessory both sides are in vertical, stator unit winding is formed around spill magnetic core 65 circle by the copper cash of a diameter 0.90mm, 4 winding electric series connection, Installation features: 4 stator units are fixed on just to the position, frame four corners of turning barrel upper rotor part unit by additional securing member, around core both upper ends thereof just to the outer rim (as shown in Figure 3 c) of turning barrel 5, the relative air gap of periodicity of 18mm is formed, corresponding turning barrel occupy-place 30 degree of angles around core two ends with the rotor unit of turning barrel outer rim.

This washing machine 4 stator units are in turning barrel swing circle, and respectively with 8 rotor unit generation magnetic action on turning barrel, the sequential electric current that corresponding power modulator exports divides 8 (T ₁+ T ₂+ T ₀) cycle, (the T of setting each cycle ₁: T ₂: T ₀) time domain ratio is (5.25:6:11.25), the different time sequence frequencies exported in washing machine each section of working procedure with this parameter determination power supply modulator, and remote definition goes out corresponding sequential current amplitude.

The turning barrel maximum (top) speed that dehydration procedure is corresponding is designed to 1200 revs/min of i.e. 20 turns/s, its (T ₁+ T ₂+ T ₀) time sequence frequency is 160 times/s, namely sequential cycle time is 6.25ms; Turning barrel, at the rotating speed (comprising rotation direction), rotation time, time of repose etc. of rinsing, cleaning procedure, all sets according to the mature experience parameter of existing market washing machine; The current strength exported during power supply modulator correspondence turning barrel maximum (top) speed is 26A when rated voltage 48V, this maximum current value is that one is fully loaded with water weight according to turning barrel, specified washing weight is in conjunction with electric device design and through the value of test inhabitant area, is as the criterion with experiment value.

The nucleus module of power supply modulator comprises the driver module (its logical construction as shown in Figure 5 b) of a conventional CPU and design power 1500W, impulse transfer modulate circuit mainly completes and pulse signal is converted to step signal, pulse signal generator mainly produces required pulse signal, secondly through the pulse of differential circuit output spike, then through the negative half period filtering of amplitude limiter circuit by spike, remaining positive axis spike, carry out integration with the integrating circuit of integrated transporting discharging composition to add up, add that voltage comparator and control circuit constitute complete step pulse signal, parameter adjustment is carried out to each element of circuit, thus be met the step signal of work-based logic requirement.Power supply modulator is at T ₁in energising sequential, by the pulse current that control chip makes driver module produce a series of amplitude to successively decrease with sequential, pulse frequency 30KHz, the both positive and negative polarity of its power input 1a electric connection of power supply 10, Timing driver current output terminal 1b is electrically connected the winding (the N pole of corresponding 4 stator units in winding energising direction is clockwise) of stator unit 3a, logic signal input end 1d is electrically connected control panel 2, and induced signal input 1c is electrically connected sensing unit 3c.Sensing unit is made up of a magnetoelectric induction winding, is connected in sensing unit near turning barrel 5 outer rim, frame 4 position relative with its upper rotor part unit motion by captive screw.

Washer control panel 2 comprises external some by the combination by formula switch and built-in cpu system, by the combinations of states of switches some on control panel, the routine work logical program of washing machine can be drawn, its standardization program and interface programming mode can specialized designs, also can the common market product of procurement data interface mode supporting; By the Aided design of work-based logic program, the current strength that power supply modulator exports can be controlled in real time, thus control the running status of washing machine turning barrel in the different operating stage.The accessory that washing machine routine uses all adopts commercial.

The driving logic of power supply modulator is: with certain stator unit and rotor unit periodically trapping gap relative, be in same normal 7 ( be 0) state be designated as benchmark coordinate and fiducial time, when the built-in CPU program of control panel 2 provides drive singal, power supply modulator according to setting T ₁(rotor unit is corresponding counterclockwise for sequential for the moment of position) export 20A electric current turning barrel is started in the counterclockwise direction, perform (T ₁: T ₂: T ₀) be the sequential of (5.25:6:11.25), and each swing circle of corresponding turning barrel strengthens 5% current strength automatically; When rotor unit at every turn around axle to reference seat timestamp, power supply modulator carries out a time and returns 0 calibration and record this cycle time, by comparing with cycle time last time, know the instantaneous value of this cycle time, and further work logic is judged: if turning barrel has reached the rotating speed of program setting, power supply modulator has reduced by 5% current strength automatically; If turning barrel does not reach the rotating speed of program setting, then power supply modulator is extremely corresponding around axle counterclockwise at next cycle respective rotor unit for in the moment of position, perform the program that each swing circle of corresponding turning barrel strengthens 7% current strength automatically, energising intensity is judged and adjustment automatically by the signal data that sensing unit 3c provides by power supply modulator in real time.When the continuous 4s of the corresponding turning barrel rotating speed of sequential energising frequency is higher than the setting value of certain hierarchical process, or when the continuous 4s of power supply modulator exports the state of 26A electric current, power supply modulator enters temporary transient dormancy and reaches Design of power saving target.

In the interstage that turning barrel converts at washing machine dipping or working procedure, show as standing, the dormancy of corresponding power modulator, not output current; The clockwise direction of turning barrel rotates, corresponding power modulator firing T ₁sequential is converted into for moment of position ( for-be worth with the position definition of rotor unit counter clockwise direction relative stator unit), perform (T ₁: T ₂: T ₀) be the sequential of (5.25:6:11.25), supply current direction is contrary.

The retarding braking logic of power supply modulator setting is: when washing machine is from (complete dehydration procedure after as rinsing, be transformed to turning barrel and leave standstill, automatically again add water) during turning barrel High Rotation Speed state transformation subsequent work program, cut off T ₁corresponding sequential electric current, starts T simultaneously ₂time domain is energized, and energising time domain is set in sensing unit 3c perception rotor unit 3b around axle 7 forward extremely for arrive it is the time period of 0 position; This braking energising time domain may correspond to cycle timing settings and is: at (T ₁+ T ₂) in sequential, initial 2/3 time domain power-off, afterwards 1/3 time domain energising.

The current strength that the corresponding braking sequential of power supply modulator exports is 25A.

The present embodiment, by the programming to control panel 2 and power supply modulator 1, effectively can realize washing machine and completes water filling, dipping, rinsing, cleaning, dehydration and arrange standing Automatic Control process therebetween.

Embodiment 2,

The basis of embodiment 1 is optimized the power-up procedure of power supply modulator: by T ₁energising time domain is set to the electric current that 5 periods of conduction time, identical but current strength rule was successively decreased, and 5 sections of energising intensity press K*I ₁the linear relationship hierarchical subtractive clustering of/A, degradation factor K is 0.8, i.e. T ₁the 5 sections of current strength arranged in energising time domain are respectively 26A, 20.8A, 16.64A, 13.31A, 10.65A.Conventional neodymium iron boron used instead by the material of rotor unit 3b.

Roughly the same, the present embodiment can reduce electric device accumulated heat for all the other and embodiment 1, and power savings is relatively good.

Embodiment 3,

The pulse subset amplitude of embodiment 2 is changed and is set to successively decrease continuously, be i.e. the corresponding T of power supply modulator ₁when starting current is 26A, the amplitude envelope trend of energising time domain is rule successively decrease, wherein the normal determined around axle and with axle for rotor unit and stator unit and axle determine the dynamic angle that normal is formed, for rotor unit around axle tangential direction and electromagnetic force direction coincidence status suffered by it determined value.

For improving the functional reliability of position signalling sensing, sensing unit is set to two by the present embodiment.

The present embodiment to successively decrease relation because pulse subset envelope that power supply modulator 1 exports have selected the sequential more optimized, and the power savings of washing machine is better than embodiment 2.

Embodiment 4,

The brake logic of embodiment 1 washing machine is optimized for further: power supply modulator starts T ₂while time domain energising, by T ₀the work-based logic of part time domain is synchronously transformed to energising, this T described ₀time value and the (T of part time domain ₁+ T ₂) equal, T ₀energising Startup time with it is 0 beginning timing; Power supply modulator is at this T ₀the stalling current intensity that part time domain exports is all 25A.

The braking energising of the present embodiment to stator unit winding adds the time domain that rotor unit is relative with the coaxial normal in stator unit place and be in away from state; This braking energising time domain may correspond to cycle timing settings and is: at (T ₁+ T ₂+ T ₀) in sequential, the T of initial 1/3 ₁time domain power-off, the afterwards (T of 2/3 ₂+ T ₀) time domain energising.

The braking energising time domain T of described embodiment 1 washing machine ₂, also can be by for arrive be change to time period of 0 position for arrive it is the time period of 0 position.

Embodiment 5,

The stator unit 3a of embodiment 1 is changed into cylindrical around core, each umber of turn around core is all 45 circles, stator unit is increased to 16, every 4 for 1 spill described in one group of alternate embodiment 1 is around core stator unit, eachly during installation to overlap with the coaxial normal 7 of turning barrel 5 around core two ends line 9, as shown in Figure 3 a; The electromagnetic pole often organizing 4 stator unit winding energising directions formation is identical, and S is extremely just to the axle 6 of turning barrel 5.12 permanent magnet rotor unit 3b carry out integrated manufacture with turning barrel 5, and S is extremely all set to counterclockwise, are entrenched in the ring-like circle of turning barrel relative with 16 stator units, alternate average setting.

In the present embodiment, the confession electric drive time domain of stator unit winding is defined as from extremely for the corresponding time period, be defined as electric braking time domain from extremely it was 0 corresponding time period.In frame, sensing unit 3c is deformed into: the turning barrel peripheral annual region any part in the cycle in the face of sensing unit, arranges one piece of permanent magnet specially, the induction winding of sensing unit is periodically responded to turning barrel 5 rotates, thus obtains sensing induction signal.

Embodiment 6,

On the basis of embodiment 1, the electric device on turning barrel 5 is set to two covers.

The rotor unit 3b of 12 one group arranges two groups, totally 24, the S pole-face of two group rotor unit to the axle 6 of turning barrel, along turning barrel ring-like 1/3 and 2/3 position be arranged between designed peak level to bottom respectively, alternate average setting, as shown in fig. lob; Rotor unit and turning barrel carry out integrated design manufacture, and turning barrel adopts plastic-steel material, and rotor unit is entrenched in the inside of turning barrel in the die forming process of turning barrel.The stator unit 3a of 4 one group arranges two groups, and totally 8, often group is electrically connected in series, and is arranged on 4 corners of corresponding two ring-like circles of rotor unit in frame 4 respectively, and the electromagnetic pole of winding energising is all set to S extremely just to the axle 6 of turning barrel 5; Power supply modulator 1 relative set is that two-way electric current exports and is electrically connected the winding of two groups of stator unit 3a respectively; Frame 4 inside of turning barrel outer rim arranges 4 sensing unit 3c, and accessory mode and other set-up modes and embodiment 1 are roughly the same.

For preventing when rotor unit 3b is in coaxial 6 normal 7 with stator unit 3a static state, to start not smoothly likely appear in turning barrel, and the present embodiment has power supply modulator specialized designs and staticly starts sequential electric current; When power supply modulator can not get sensing device feedback signal at 0.5S, send the starting current contrary with normal drive current direction in real time, make permanent magnet rotor unit relative with stator unit on turning barrel be subject to like pole to repel each other, make it to depart from the state being in same normal with stator unit trapping gap, avoid starting not smoothly.

In the present embodiment, the confession electric drive time domain of turning barrel stator unit winding is defined as from extremely for the corresponding time period, be defined as electric braking time domain from extremely it was 0 corresponding time period.Described turning barrel, both the impeller-type placed vertically can be designed in washing machine, also the drum-type of traverse can be designed to, by programming to control panel 2 and power supply modulator 1, washing machine can be realized complete water filling, dipping, rinsing, cleaning, dehydration and arrange standing Automatic Control process therebetween, effectively reduce the power consumption of washing machine.

Embodiment 7,

Frame 4 horizontal cross-section of above embodiment is quadrangle, stator unit 3a is arranged on 4 corners, the frame of the present embodiment changes horizontal cross-section triangle into, 12 is that I-shaped stator unit divides 3 groups around core, often organize 4 stator units and be arranged on 3 corners, namely one group of 4 stator unit is installed in each corner, often organize stator unit around correspondence turning barrel occupy-place 105 degree of angles, two ends that core combines, form the relative air gap of 15mm with turning barrel, the I-shaped of each stator unit overlaps with the normal 7 of turning barrel around core two ends line 9.

The inner equispaced of turning barrel is fitted together to the rotor unit of 12 length 28mm, and the S of rotor unit is extremely all counterclockwise arranged around turning barrel; The winding of each stator unit is by the copper cash of diameter 0.85mm around forming, and the number of turn 45 is enclosed, and eachly during installation overlaps with the coaxial normal 7 of turning barrel 5 around core two ends line 9, as shown in Figure 3 a; The winding annular electro series connection of 3 groups of stator units, interface respectively draws a tap, and 3 lines (being similar to the Δ connection of the inner winding of conventional motors) are changed in the external loop of winding; Power supply modulator 1 correspondence is designed to 3 line loops, time sequential pulse electric current mean allocation in each loop that 3 lines are formed of its corresponding output, and after making often to organize 4 stator unit windings in series combinations, the N of the electromagnetic field that energising obtains extremely all clockwise; The present embodiment can utilize the signal of the external multiple circuit feedback of stator unit 3a winding to compare differetial-potential difference, rotates the signal source of relative position differentiation as rotor unit with turning barrel 5, substitutes the independent sensing unit arranged.

The present embodiment the driving of electric device, braking and work-based logic are controlled and embodiment 1 roughly the same.

Embodiment 8,

The stator unit of embodiment 1 single line wounded core is changed into two-wire wounded core and forms two winding loops, one of them winding loop is formed around spill magnetic core 65 circle by the copper cash of a diameter 0.90mm, power for power, the sequential current output terminal of electric connection of power supply modulator 1; Another winding loop is formed around spill magnetic core 15 circle by the copper cash of a diameter 0.18mm, is used as to substitute the independent sensing unit arranged, rotates the judgment signal source of relative position as rotor unit with turning barrel 5.The present embodiment more can save copper material.

Above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is modified or equivalent replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.

Claims (6)

1. an electric device for washing machine, is characterized in that, described electric device comprises power supply modulator (1), stator unit (3a) and permanent magnet rotor unit (3b); The turning barrel (5) of described washing machine at least arranges a rotor unit group, and each rotor unit group comprises at least 4 spaced rotor units (3b), and the pole orientation that all rotor units are arranged around turning barrel is identical; Described stator unit at least installs one at frame (4) fixed position near turning barrel outer rim, and air gap (3d) relative to the periodicity that rotor unit is formed is not more than 60mm;

Described power supply modulator (1) comprises power input (1a), logic signal input end (1d) and sequential current output terminal (1b), its power input electric connection of power supply (10), the inside winding of sequential current output terminal electrical connection stator unit (3a).

2. electric device according to claim 1, it is characterized in that, described stator unit (3a) is formed by least one group of good wire wounded core, by connected in series or in parallel between its winding that combination arrangement obtains in frame (4), or by drawing the multi-thread external loop of centre tap composition between different winding.

3. electric device according to claim 1, it is characterized in that, described electric device also comprises sensing device, described sensing device comprises some sensing units (3c) responding to described rotor unit (3b) and stator unit (3a) relative position, and it is electrically connected with the transducing signal input (1c) of described power supply modulator; Described electric device at least arranges a sensing unit in frame (4) inside.

4. electric device according to claim 3, it is characterized in that, the sensing device of described electric device also comprises the inside winding of stator unit (3a), and described inner winding comprises the multi-thread external loop around being in series between the winding of stator unit magnetic core and some stator unit windings.

5. electric device according to claim 1, it is characterized in that, described electric device also comprises the control panel (2) of the cpu logic system in combination of some selector switches and built-in control program, and it is electrically connected the logic signal input end (1d) of described power supply modulator; The logic function of control panel (2) is independently arranged, and also the partial logic function of power supply modulator or whole logic function can be integrated in control panel.

6. a washing machine, it is characterized in that, described washing machine is containing, for example the arbitrary electric device of Claims 1 to 4, described washing machine comprises turning barrel (5), frame (4), power supply (10) and at least arranges a set of electric device, and described turning barrel is included in machine frame inside and crouches the drum-type of putting, the impeller-type placed vertically and the structure of tiltedly putting.