CN109415866A - Especially manipulated with dynamic of the DC supply voltage to the door opener of household appliance - Google Patents

Abstract

The present invention relates to a kind of methods for manipulating the door opener (10) of household appliance (1) during opening procedure, the door opener includes electronic mechanical actuator (11), the household appliance includes door (2), wherein, actuator (11) includes two actuator connectors (14 for electric-type manipulation, 15), pass through: providing service voltage (18) with reference between connector (17) in the electric supply joint (16) and electricity of door opener (10), the service voltage has voltage form predetermined under the specific run state of household appliance (1)；The coupling device (13) of electric-type is provided, for desirably first in two actuator connectors (14,15) to be coupled on supply joint (16) and/or second in two actuator connectors (14,15) is coupled to reference to connector (17)；Service voltage (18) is coupled with two actuator connectors (14,15) according to the pulsed coupled signal (19) for manipulating actuator (11) for electric-type by means of coupling device (13)；It is generated according to the manipulation of the electric-type of actuator (11) and presses off power for being applied on door (2)；With pulsed coupled signal (19) are generated according to predetermined voltage form and/or according to provided coupling device (13) to realize that the temporal variation for pressing off power, the temporal variation have the envelope curve risen.

Description

Especially manipulated with dynamic of the DC supply voltage to the door opener of household appliance

Technical field

The present invention relates to a kind of preambles according to independent claims for manipulating the door opener of household appliance Method and a kind of household appliance in door opener.The invention further relates to a kind of household devices with this kind of door opener Tool.

Background technique

For nursing the household appliance of washings, which has can be by means of the interior room of door termination, e.g. Washing machine, dryer for washings or scrubbing-and-drying unit combination, the household appliance usually have closing device, the closure dress Setting is maintained at door in the position of closure by force closure.Modern household appliance can will press off power application and get home with being ready for use on With the electronic mechanical door opener on the inside of appliance door, to overcome the force closure applied by closing device.From DE 10 2013 223 431 B3 and from known to 10 2,014 201 924 A1 of DE with such door opener household appliance.

However, this process that automatically opens has to comply with wanting for the previously given safety to opening procedure and comfort It asks.

Summary of the invention

Therefore, described the object of the present invention is to provide a kind of method, a kind of door opener and a kind of household appliance Method, the door opener and the household appliance provide higher safety and improved comfortable in the opening procedure of door Property.

The task passes through according to a kind of method of independent claims and a kind of door opener and a kind of household appliance solution Certainly.Advantageous configuration of the invention is the theme of dependent claims.

The present invention goes out from a kind of method for the door opener of household appliance of the manipulation including door during opening procedure Hair, the door opener includes electronic mechanical actuator, wherein the actuator includes two actuatings for electric-type manipulation Device connector.The described method includes: the electric supply joint and electricity in door opener provide service voltage, the confession with reference between connector There is voltage form previously given under the specific run state of household appliance to voltage；The coupling device of electric-type is provided, is used In the first actuator connector in two actuator connectors being coupled on supply joint as desired and/or by two actuators The second actuator connector in connector is coupled to reference on connector.Furthermore, which comprises borrowed according to pulsed coupled signal Help coupling device and couple service voltage with two actuator connectors, for electric-type manipulates actuator；And according to actuating The electric-type manipulation of device, which is generated, presses off power for being applied on door.Electronic mechanical actuator can be related to having to be activated at two The actuator of the electromagnetic coil connected between device connector can manipulate the electromagnetic wire preferably with the actuator of cylinder coil Circle makes it possible to for magnetic force being applied on movable actuator component.It is preferred that movable actuator component be related to it is magnetizable Material, especially ferromagnetic material.Movable actuator component is capable of be arranged such that its at least portion in resting position It is supported on except the interior zone of electromagnetic coil and is pulled to when in electric-type manipulating actuator the direction of electromagnetic coil with dividing.

In the case where using magnetizable material as movable actuator component, suction is based on reluctance force, described Change of the reluctance force based on electromagnetic resistivity.Herein, generated power with flow through electromagnetic coil, generate the electric current in magnetic field it is flat Side is proportional.Therefore, unrelated with by the symbol of electric current of electromagnetic coil to the power effect on movable actuator component, this So that this kind of embodiment of electronic mechanical actuator also can be used in the direct manipulation carried out with alternating signal (AC).Substitution Ground can be set using the material of permanent magnetism for movable actuator component, use the supply for being in AC voltage form When voltage, this requires additional rectification, the electromagnetic coil so as to electric-type manipulated.

According to the present invention, the method is extended by following manner: according to previously given voltage form and/or according to Provided coupling device generates pulsed coupled signal, described temporal for realizing the temporal variation for pressing off power Changing has the envelope curve risen.Herein, envelope curve is interpreted as following curved lines: the curved lines correspondingly exist The minimum value of part nearby encounters the curve graph changed on the time for press off power.In the simplest case, envelope curve is straight The sequence of line segment.Simplifiedly, also envelope curve can be sought by following manner: corresponding local maximum is passed through into straightway It connects.Can occur in this case: envelope curve be not near local maximum with press off power time on change Curve graph contact, but intersect with it, wherein and the deviation of " ideal envelope curve " is small to can ignore that.Therefore, can (the especially line of the interpolation of the local maximum with positive symbol of the curve graph simplifiedly changed on the time by pressing off power Property ground interpolation) change curve describes the envelope curve.

The present invention is based on following understanding: due to being used generally for the application in this kind of door opener based on alternation The manipulation of voltage is restricted in terms of the adjustable temporal characteristic for pressing off power, the manipulation based on alternating voltage Make it possible to particularly simple realize operated switching circuit based on three terminal bidirectional alternating-current switch (Triac) or relay.

The current implementation of door opener use additional pin, so as to pressed off from the closed position of door/wash door open.It is logical Manipulation electromagnetic coil is crossed to guide the pin.Here, pin and electromagnetic coil it needs to be determined that power, to overcome the holding of closing device Power.When being manipulated using the AC for electromagnetic coil, it is still necessary in half period (in the case where 50 hertz, 10 milliseconds) It provides in time in order to open energy required for door.It means that enough energy must be provided in about 10 milliseconds.So Afterwards, the energy in electromagnetic coil does not continue to improve.

This short time leads to some disadvantages.The duration of operation of impact has the biggish dependence to frequency.? It, can be due to handing over zero in the case where the longer duration of operation (electromagnetic coil is activated during the duration of operation)And vibrate, in the friendship zero, become zero by the electric current of electromagnetic coil.Door, household device Tool and door holding mechanism are the mechanical parts being assembled together.Therefore following situations can occur: they absorb the fast of door opener The effect of speed impact, mode are that they constitute the mechanical type filter to the maximum impact for continuing 10 milliseconds.Furthermore it needs to use In the big current impulse of manipulation actuator.In addition, voltage fluctuation will lead to different impact forces, based on being mentioned within 10 milliseconds The different energy that is supplied on electromagnetic coil and lead to different impact forces.Therefore can not achieve to 170 volts and 260 volts it Between voltage fine tuning.In order to ensure door is opened, under any circumstance in the case where the small voltage of 170 volts of AC high It is opened, correspondingly the impact of expectable super large in the case where 260 volts of AC.

There is the envelope curve risen, Neng Goushi so that pressing off the temporal variation of power by carrying out the manipulation of actuator The higher safety of existing door opener and improved comfort.More particularly to thus preventing door from tempestuously touching to user and Make its injury.

According to a kind of advantageous expansion scheme of this method, it will thus provide coupling device and generation pulsed coupled signal are implemented Are as follows: during the stage pulse of the activation of coupled signal, the temporal variation for pressing off power has at least two local maximums Sequence, at or near at least two local maximum is located on the envelope curve of rising, wherein in time The second game of at least two local maximums after the first partial maximum value of at least two local maximums later Portion's maximum value has the value bigger than first partial maximum value.The maximum being applied on door can be gradually improved by this method Power.Implement it is particularly preferred that coupling device will be provided and generate pulsed coupled signal are as follows: so that at least two part is most The sequence being worth greatly has in time the third local maximum after the second local maximum later, the third Local maximum has the value bigger than the second local maximum.Thus, it is possible to further improve hierarchically to apply opening force to door On.

According to a kind of advantageous embodiment of this method, service voltage is provided by DC power supply.Thus in electric mechanical Biggish flexibility is generated on the control mode of formula actuator, especially cancels and being acted on due to caused by handing over zero, is using alternation electricity Ground is determined by principle when pressure and hands over zero there are described.

It can alternatively be arranged and provide service voltage by AC power source.Preferably, in this case, rectifier is connected to Between service voltage and electronic mechanical actuator.Therefore, it is also realized in the case where being powered by AC power source using rectifier Use the material of permanent magnetism as movable actuator component.In addition, at rectifier rear, that is in rectification side Upper that the filter element of electric-type can be arranged (in actuator linking to the side), the filter element of the electric-type is realized to reduce and pressed off In the temporal variation of the power, disturbance due to caused by the friendship zero of alternating voltage.

According to another advantageous configuration of this method, beaten with the sequence generation of multiple pulses being separated from each other in time Coupled signal during open procedure.Optimization pressure is required to according in terms of the safety of door and comfortable opening procedure as a result, The variation of opening force, the variation have the envelope curve risen.

Alternatively, the coupled signal during opening procedure capable of being generated with unique pulse.Herein, press off power when Between on changes shape and the shape of envelope curve of rising determined by charge coupled device itself.Therefore, by selection according to this The corresponding suitable charge coupled device that the method for invention provides can be realized the desired temporal variation for pressing off power.

According to another advantageous configuration of this method, according to the first signal of the opening state for indicating door and/or according to table Show that the second signal of the locking state of door generates coupled signal.Door opener can mildly open door and same herein as a result, When inspection door whether have already turned on.The case where being had already turned on for door, the manipulation of door opener meeting interrupt gate, to avoid additionally It impacts on door, the impact may hit the user of household appliance.In addition, household appliance can be equipped with shutdown system, The shutdown system also provides the locking of door, this is especially in the front-end loader form in the loading opening with front side setting It is significant in washing machine.Herein, if door is opened when being more than critical groundwater table in roller, floods be will cause.In door In the case where locking, door-opening mechanism is also suitably locked, to prevent the portion of household appliance, especially locking device or door opener Part damage.

In addition, the present invention is from the door opener in a kind of household appliance including door, wherein door opener includes electricity Supply joint and electricity refer to connector, are capable of providing service voltage, the confession with reference between connector in the electric supply joint and electricity There is voltage form previously given under the specific run state of household appliance to voltage.In addition, door opener includes electronics Mechanical activator, for generating the power that presses off for being applied on door, the actuator packet according to the manipulation of the electric-type of actuator Two actuator connectors for electric-type manipulation are included, also, the door opener includes the coupling device of electric-type, the electric-type The first actuator connector in two actuator connectors designed for being coupled on supply joint and/or by two by coupling device The second actuator connector in actuator connector is coupled to reference on connector, to manipulate cause according to pulsed coupled signal electric-type Dynamic device.Pulsed coupled signal can in particular have the binary signal of two states, that is, what is coupled is (logical) and non-coupled (disconnected).

According to a kind of advantageous expansion scheme of door opener, the coupling device of electric-type is connected to cause with electric-type The resistive element of dynamic device, has variable resistance.The variable resistance more particularly to the resistance dependent on temperature are preferably warm The resistance value of quick resistance (NTC), the thermistor has negative temperature coefficient.This kind of resistive element is not only able in direct current The service voltage of voltage form is used and can be used by the service voltage in the form of alternating voltage.From door opener Stationary state (under the stationary state, resistive element is in ambient temperature and has high resistance value) is set out, and is passed through The electric current for crossing resistive element leads to the conducting self-heating of resistive element and then resistance value is caused to decline.This causes by actuator, example Such as by the raising of the electric current of the electromagnetic coil of actuator, the electromagnetic coil is connected between two actuator connectors, wherein In the case where being run using alternating voltage as service voltage, should correctly be referred to as current amplitude increases rather than mentioning for electric current Height, to avoid the misunderstanding in terms of the electric current duration decline determined by voltage shape.Therefore, considering to be configured to allow for electricity Can have and the resistance of the matched parameter of actuator electromagnetic coil member by suitably selected in the case where the working voltage of pressure Part presses off the temporal variation of power to realize, once coupled signal controls the coupling device of electric-type to couple state (logical), The temporal variation has the envelope curve risen.

According to another advantageous embodiment of door opener, the coupling device of electric-type has the first electronic switching element, It is connected to actuator to the first electronic switching element electric-type.Feelings for DC voltage (DC) as service voltage Condition, preferably electronic switching element are configured to transistor, are especially configured to bipolar junction transistor or field effect transistor, especially excellent Choosing is configured with the field effect transistor (MOSFET or IGFET) of insulated door.Service voltage is used as at alternating voltage (AC) In the case where, preferably the first electronic switching element is configured to three terminal bidirectional alternating-current switch (Triac) or is configured to relay, outstanding It is configured to semiconductor relay.Herein, it is preferably able to carry out electric isolution behaviour by optical connection, for example by optical conductor Control.

According to a kind of advantageous expansion scheme of door opener, the coupling device of electric-type has the second electronic switching element, It is connected to the first electronic switching element to the second electronic switching element electric-type.Therefore, actuator and the first electronics Switch element and the second electronic switching element are connected in series to electric-type each other, the actuator can electric-type by being connected to two Electromagnetic coil between actuator connector represents.It can be realized safety switch circuit by means of the second electronic switching element, it is described Safety switch circuit is designed for real in the case where mistakenly manipulating the first electronic switching element by pulsed coupled signal Electricity cut-off type actuator is manipulated in existing.Such as can by the computing unit of process control, particularly by microcontroller/micro process Device realizes signal generation unit, and the microcontroller/microprocessor provides coupled signal at the first electronic switching element.At this In the case of kind, the second electronic switching element, the independent analog switching circuit can be manipulated by independent analog switching circuit Therefore the function of electronic insurance is undertaken.It for example can also prevent from causing in the case where the computing unit of process control crashes as a result, Dynamic device overload.

According to a kind of advantageous expansion scheme of door opener, signal generation unit is designed for according to by actuator Electric current generates coupled signal.Thereby, it is possible to by generating desired temporal variation (corresponding to pressing off the previously given of power Rated value curve) adjust the electric current by actuator.Especially, the influence as caused by voltage fluctuation can be thereby compensated for.

According to a kind of advantageous expansion scheme of door opener, signal generation unit is arteries and veins designed for generating coupled signal Rush bandwidth modulation signals.That is, modulating frequency by constant, can be previously given pulse period, i.e. by pulse width Reciprocal realize of rate (PWM frequency) generates coupled signal, wherein variable pulse width is arranged.Herein, pulse width and arteries and veins The ratio for rushing the period is determined by so-called duty ratio (English: duty cycle).Alternatively to this, pulse train control can be set In pulse train control constant, can be previously given turn-on time is arranged, and close by the way that control is corresponding in system The disconnected time realizes the duty ratio.Similarly, when the constant turn-off time can be set and changing connection in the corresponding way Between.

Preferably, the duty ratio for being used for each clock cycle can be realized according to so-called loop control.Also can be arranged Coupled signal is generated based on two-point regulator method, mode is, can be previously given if dropped to by the electric current of actuator Minimum value hereinafter, then connect coupled signal, if by the electric current of actuator be more than can be previously given maximum value, turn off Coupled signal.Herein, effective minimum value and/or effective maximum value can be to rely on the time respectively respectively.With this Mode can be realized particularly simple adjusting method.

Preferably, household appliance, particularly for nurse washings household appliance can have enabling according to the present invention Device and door, the door can be extruded by the door opener from closed position, and household according to the present invention is thus obtained Utensil.Here, the door of household appliance can be by having better temporal controllability and soft raising characteristic Door opener rushes open.Here, can also better compensate for the possible fluctuation of input voltage, the input voltage is used as household device The service voltage of tool.Additionally, it can be set using feedback, when door has already turned on, the feedback can be used in avoiding strong Much on Ground shock waves to door.Generally speaking, when it slowly enough being improved, such additional impact does not occur completely.This Outside, sink effect can be overcome, the sink effect is generated by the mechanical component of household appliance.Longer pulse for example exists The longer pulse in the case where entire train of pulse is used to also imply that door opener generates less noise.Therefore, especially exist Use DC voltage as the power supply frequency that in the case where the inside service voltage of door opener, can be realized independent of power supply Rate and supply voltage, household appliance are run on the power supply.

Other feature of the invention is obtained from claim, attached drawing and Detailed description of the invention.It is previously mentioned in the description above Feature and feature combination and be previously mentioned in the description of the drawings below and/or the feature shown separately in the drawings and spy Sign combination can not only can be used with the combination that provides respectively and with others combinations, without departing from frame of the invention Frame.Therefore, following embodiments, which can also be considered as by the present invention, includes and openly: the embodiment is in the accompanying drawings not yet explicitly It shows and explains, however can be combined by the individual feature from the embodiment explained and obtain and generate.Following implementations Mode and feature combination also can be considered and be disclosed: therefore the embodiment and feature combination do not have the rights to independence listed originally All features that benefit requires.In addition, following embodiments and feature combination are especially because embodiment explained above can It is considered as and is disclosed: the embodiment and the spy that feature combination is more than or deviation is explained in the adduction relationship of claim Sign combination.

Detailed description of the invention

Other advantage and feature are obtained in the case where considering attached drawing according to the next explanation to embodiment.Attached In figure, identical appended drawing reference indicates identical feature and function.

Attached drawing is shown:

According to the present invention household appliance of the Fig. 1 in simplified front schematic view；

Fig. 2 in simplified schematic representation in order to run door opener, (such as described door opener is arranged according to Fig. 1 Household appliance in) and the circuit arrangement that uses；

The remodeling of Fig. 2 shown in circuit arrangement of the Fig. 3 in simplified schematic representation, for according to preferably First embodiment door opener according to the present invention in use；With

The preferred second embodiment of according to the present invention door opener of the Fig. 4 in simplified schematic representation.

Specific embodiment

The household appliance 1 for nursing washings is shown in FIG. 1.The household appliance can be related to a kind of washing machine, A kind of dryer for washings or a kind of combined utensil being made of washing machine and dryer for washings.In shown embodiment party A kind of so-called front-end loader involved in formula, the front-end loader have the door 2 to front opening, and the door is for closing example Such as circular loading opening 3.Household appliance 1 includes shell 4, and the roller 5 for receiving washings is disposed in the shell. Loading opening 3 is the opening of the front side of roller 5.In addition, household appliance 1 include on configuration and position it is merely illustrative ground and The operating device 6 that can not be understood with limiting, the operating device have at least one operating element 7 and display unit 8.In addition, Show drawer type pours shell 9.

Door opener door 2 and be arranged in household appliance 1 that is swingably arranging and especially constructing to side of a ship window 10 in mechanical type contact.In this embodiment, which is arranged so that it can be applied to the fringeware of door 2 Inside on.The fringeware is opposed with the other fringeware of door 2, and on the other fringeware, door 2 is by means of in Fig. 1 In unshowned hinge be pivotally supported on household appliance 1.

Door opener 10 include electronic mechanical actuator 11, the electronic mechanical actuator have electromagnetic coil and The actuator component movably supported in the zone of action in the magnetic field that can be generated by electromagnetic coil, the actuator component It is made by magnetism or magnetizable material, preferably by ferromagnetic material.Door opener 10 further includes signal generation unit 12, the signal generation unit is designed to provide for pulsed coupled signal at the coupling device 13 of electric-type, the electric-type Coupling device manipulates electronic mechanical actuator 11 with realizing electric-type.

When EP (end of program) being correspondingly arranged, for handling washings, can automatically washing or it is dried The end of journey is achieved with door opener 10 and opens door 2.Alternatively, or additionally, can be arranged: when making for household appliance 1 User by operating device, for example by being pressed the button in operating device 6 or by means of (such as showing on the touchscreen On unit 8) input element input come when carrying out corresponding operation processing, the door 2 of household appliance 1 is beaten by door opener 10 It opens.

Fig. 2 shows the electric-type part of door opener 10, which can be packed into the household device according to the diagram in Fig. 1 In tool 1.Door opener 10 is including supply joint 16 and refers to connector 17.It can be with the alternating voltage electricity of power supply with reference to connector 17 Connect to neutral conductor connector (N) electric-type of source or three phase mains.Supply joint 16 can with the alternating voltage of power supply or Connect to outer conductor connector (L) electric-type of three phase mains.This kind of arrangement can be supplied with 230 volts of voltage and 50 hertz of frequency Electricity.The the first actuator connector 14 and supply joint 16 of two actuator connectors 14,15 are conductively connected.Two actuator connectors 14,15 the second actuator connector 15 is by the coupling device 13 of the electric-type in 21 form of first switching element and with reference to connector 17 It couples to electric-type, the first switching element is configured to multichannel triode thyrister (Triac).

Service voltage 18 acts on supply joint 16 and with reference between connector 17, and the service voltage has sinusoidal deformation Change.230 volts of high voltages of the service voltage more particularly to the supply frequency with 50 hertz.It is coupled by means of pulsed Signal 19 manipulates actuator 11 with realizing electric-type, and in the diagram of Fig. 2, the actuator is represented by its electromagnetic coil.By electricity The electric current of magnetic actuator is shown schematically as actuator current 20.Actuator current 20 is not only with positive but also have negative The amplitude difference of half-wave, above-mentioned half-wave is equal.Using the actuator component (drawing of the ferromagnetic component for being in ferromagnetic component Power is based on reluctance force) in the case where generate pulling force, the pulling force and actuator current 20 it is square proportional.Thus reason, with The instantaneous flow direction of actuator current 20, which independently generates to be transmitted on door 2 by actuator component by means of push rod, presses off power Signless variation.Referring to the diagram in Fig. 2, successive positive half-wave is only thus generated for pressing off the variation of power.

Therefore, electromagnetic coil (for the sake of clarity, the friendship of actuator 11 is manipulated by alternating current (AC) electric-type Time-dependent current is illustratively shown in figure with three half periods) must in first half period, that is in 50 hertz of electricity Power required for opening has been provided as in the case where source frequency within 10 milliseconds.In other words, within a half period, That is within 10 milliseconds, gross energy (W) is by the half inductance (L) of coil multiplied by the electric current (I) by actuator 11 Square generate (W=1/2LI²), the half inductance at it in terms of that depend on movable actuator component relative to The position of the electromagnetic coil of actuator 11.Then, the energy in electromagnetic coil does not further increase, and thus can not The further power for squeezing power is caused to improve.

This short time has multiple shortcomings.On the one hand, the effective pulse duration depends on frequency.If electromagnetism Coil keeps activation longer time, then the friendship zero due to actuator current 20 at 0 degree with the phase of 180 degree and can shake It is dynamic.Door 2, household appliance 1 and door holding mechanism are mechanical parts interconnected.They may be absorbed by opening to largest portion It is that door gear is rapidly carried out, have the function of be less than or equal to 10 milliseconds in the range of duration impact because they It works as mechanical type filter.Therefore big pulse is needed.In addition, voltage fluctuation will lead to it is different press off power because It is provided within 10 milliseconds on different energy to electromagnetic coil herein, it is thus impossible to carry out in 170 volts and 260 volts Between voltage accurate adjustment.Therefore, in order to ensure door 2 is also opened at any time in 170 volts of AC, it is necessary to allow in 260 volts of AC When stronger impact.Manipulating the pulse width of pulsed coupled signal 19 is only typically and not restricted in Fig. 2 Ground understands that the pulsed coupled signal is used to manipulate the first switching element 21 in three terminal bidirectional alternating-current switch form.

In order to realize that the temporal variation of following power of pressing off, the temporal variation of the power of pressing off have the packet risen Network curve, the first embodiment according to the present invention being shown in FIG. 3 also supplement electric-type in the electric-type part of door opener 10 Ground is connected to the resistive element 22 in thermistor form of actuator 11, and the thermistor has with negative temperature The resistance value dependent on temperature of coefficient.Therefore, resistive element 22 be connected to the first actuator connector 14 and supply joint 16 it Between and diagram according to fig. 2 appear in the position being directly electrically connected between the first actuator connector 14 and supply joint 16.

In principle, in the door opener 10 according to the diagram of Fig. 3, in the long-term situation of the activation of actuator Under, it also will appear the vibration based on system frequency and mechanical property.It can reduce this kind of vibration tendency, mode is will to activate The electromagnetic coil of device 11 is coupled by full-wave rectifier (bridge rectifier).In this case, also it is possible that will smoothly filter After wave element (such as capacitor) is integrated in rectifier, to be achieved in the filter of the supply frequency part from excitation signal Wave.

NTC needs some times to cool down again, this causes, and system will open door 2 feelings twice in a short time Condition less efficiently works.In this case, the second embodiment next shown provides one kind and more effectively does Method, to manipulate door opener 12 by means of the circuit arrangement for supplying DC voltage.

Second embodiment according to the present invention corresponding to the diagram in Fig. 4, using DC voltage as service voltage 18 are connected to supply joint 16 and with reference on connector 17.Herein, preferably service voltage 18 can be 175 volts DC to 400 volts Special DC.These values are not read restrictively, more precisely, arbitrary voltage level can be arranged, especially again smaller than 175 volts The voltage level of special DC.In shown second embodiment, it is coupled to electronic mechanical actuating in series in known manner The coupling device 13 of device 11 has first switching element 21 and second switch element 24, and the first switching element and second is opened Element is closed to be serially connected.First switching element 21 and/or second switch element 24 can be implemented as bipolar transistor.With cause Unloaded diode 23 in parallel, is coupled to the first actuator connector 14 and the second actuator connector 15 by the electromagnetic coil of dynamic device 11 On.

For unloaded diode 23 for preventing overvoltage peak value, the overvoltage peak value originally can be in first switching element 21 And/or occur when the shutdown of second switch element 24.The first switching element 21 for being currently embodied as bipolar transistor connects in its base stage Pulsed coupled signal 19 is obtained on head to supply.In this second embodiment, pulsed coupled signal 19 is configured to pulse width Modulated signal (pwm signal).Here, coupled signal 19 was respectively provided in the clock cycle than ranking forefront in the subsequent clock cycle Higher pulse width.Thus the actuator current 20 with the envelope curve risen is generated.From pressing off power and actuator current 20 relevant functional relations (such as it is shown above with actuator current 20 square proportionate relationship), also to press off power It is temporal to change the envelope curve risen.

Second switch element 24 represents safety switch circuit (PEC).The mode of the realization of the second switch element 24 for The present invention is nonsensical.

According to mode used in electronic mechanical actuator 11, in actuator current 20 and the resulting of power is pressed off Correlation between temporal variation can have very different characteristic.Therefore, according to second embodiment, using by The pulsed coupled signal 19 of multiple pulses composition as train of pulse permission actuator current 20 curvilinear motion it is free Controllability, the free controllability is corresponding to the requirement to the variation to be adjusted for pressing off power.Thereby, it is possible in safety With the dynamic characteristic of optimization opening procedure in terms of comfortable process.

Shown circuit arrangement has the advantages that some in door opening process.It is capable of providing with the pulse width improved Pulse train to coupling device 13 on, such as the pulse train have from 0% to 100% duty ratio (English: duty Cycle continuous raising).Different raising curves can be generated according to circuit arrangement and the mechanical property of actuator 11, such as Door opening process end is being closed on small overshoot.

Similarly, improving duty ratio can match with the size of the DC voltage of offer, the DC voltage of the offer From the AC power source of power supply, perhaps three-phase alternating current obtains such as the drive motor for example for supplying electricity to household appliance 1 or adds Other component as thermal.Also possible input voltage fluctuation can be better compensated for.

Slowly improving characteristic helps to reduce the impression of unexpected door impact and also contributes to reducing noise generation.Such as Fruit it slowly enough carries out the raising, then does not occur this additional impact.

If slowly implementing to improve, make it possible to additionally identify opening signal (feedback signal), then it can be immediately Door opener is deactivated, to avoid at that time via the much better than additional impact on the door of door holding mechanism unlatching.

First embodiment of the invention can be realized in a very simplified manner, and second embodiment provides high obtain More degree of flexibility and especially also realize irrelevance with supply frequency and power input voltage.

The embodiment is used only for illustrating rather than limit the invention, and especially, can arbitrarily construct circuit The specific configuration of the device (present invention is realized by means of the device of the circuit engineering) of technology, and without departing from structure of the invention Think.

Therefore, above it is stated that, can how door opener 10 of the configuration as shown in this second embodiment, especially borrow Help the door opener 10 of DC voltage manipulation, to improve the safety in the door opening process implemented by household appliance and to relax Adaptive.Other than activating door opener 10 based on DC, yet propose improved to activate door opener 10 based on AC.

Reference signs list

1 household appliance

2

3 loading openings

4 shells

5 rollers

6 operating devices

7 operating elements

8 display units

9 pour shell

10 door openers

11 electronic mechanical actuators

12 signal generation units

The coupling device of 13 electric-type

14 first actuator connectors

15 second actuator connectors

16 supply joints

17 refer to connector

18 service voltages

19 pulsed coupled signals

20 actuator currents

21 first switching elements

22 resistive elements, it is variable

23 unloaded diodes

24 second switch elements

Claims (15)

1. method of the one kind for the door opener (10) of household appliance (1) of the manipulation including door (2) during opening procedure, institute Stating door opener includes electronic mechanical actuator (11), wherein the actuator (11) includes two for electric-type manipulation Actuator connector (14,15), which comprises

Service voltage (18) are provided with reference between connector (17) in the electric supply joint (16) and electricity of the door opener (10), The service voltage has voltage form previously given under the specific run state of the household appliance (1),

The coupling device (13) of electric-type is provided, for as desired causing first in described two actuator connectors (14,15) Dynamic device connector is coupled on the supply joint (16) and/or activates second in described two actuator connectors (14,15) Device connector is coupled on reference connector (17),

According to pulsed coupled signal (19) by means of the coupling device (13) by the service voltage (18) with it is described two Actuator connector (14,15) coupling, for electric-type manipulates the actuator (11), and

It is generated according to the manipulation of the electric-type of the actuator (11) and presses off power for being applied on the door (2),

It is characterized by:

The pulsed coupling is generated according to the previously given voltage form and/or according to provided coupling device (13) It closes signal (19), to press off the temporal variation of power described in realization, the temporal variation has the envelope curve risen.

2. the method according to claim 1, wherein the coupling device (13) will be provided and generate the pulse Formula coupled signal (19) is implemented are as follows: during the sensitizing pulse stage of the coupled signal (19), on the time of the power of pressing off Variation there is the sequences of at least two local maximums, at least two local maximum is located at the packet of the rising It is on network curve or positioned adjacent, wherein in time later immediately in the first of at least two local maximum Second local maximum of at least two local maximum after local maximum has more maximum than the first partial It is worth bigger value.

3. according to the method described in claim 2, it is characterized in that, the coupling device (13) will be provided and generate the pulse Formula coupled signal (19) implement are as follows: so that the sequence of at least two local maximum have in time later immediately in Third local maximum after second local maximum, the third local maximum have than second part most The bigger value of big value.

4. method according to any one of the preceding claims, which is characterized in that the service voltage (18) is by direct current Source provides.

5. according to the method in any one of claims 1 to 3, which is characterized in that the service voltage (18) is by alternating current Source provides.

6. method according to any one of the preceding claims, which is characterized in that be separated from each other in time with multiple Pulse sequence generate the opening procedure during coupled signal (19).

7. according to the method described in claim 5, it is characterized in that, during generating the opening procedure with unique pulse Coupled signal (19).

8. method according to any one of the preceding claims, which is characterized in that according to the open shape for indicating the door (2) The second signal generation coupled signal (19) of first signal of state and/or the locking state according to the expression door (2).

9. a kind of door opener (10) in the household appliance (1) for including door (2), wherein the door opener (10) includes:

Electric supply joint (16) and electricity refer to connector (17), are capable of providing in the electric supply joint and electricity with reference between connector Service voltage (18), the service voltage have voltage previously given under the specific run state of the household appliance (1) Form,

The actuator (11) of Electromechanical, it is described for being applied to for manipulating generation according to the electric-type of the actuator (11) Power is pressed off on door (2), the actuator includes two actuator connectors (14,15) for electric-type manipulation, and

The coupling device of the coupling device (13) of electric-type, the electric-type is designed for described two actuator connectors (14,15) In the first actuator connector be coupled on the supply joint (16) and/or will be in described two actuator connectors (14,15) The second actuator connector be coupled to it is described with reference on connector (17), to manipulate institute according to pulsed coupled signal (19) electric-type State actuator (11)

It is characterized by:

The door opener includes signal generation unit (12), and the signal generation unit designed for giving in advance according to described Fixed voltage form and/or the coupled signal (19) is generated according to the coupling device (13), to press off power described in realizing Temporal variation, the temporal variation have the envelope curve risen.

10. door opener (10) according to claim 9, which is characterized in that the coupling device (13) of the electric-type has It is connected to electric-type the resistive element (22) of the actuator (11), the resistive element has variable resistance.

11. door opener (10) according to claim 9 or 10, which is characterized in that the coupling device (13) of the electric-type With the first electronic switching element (21), the first electronic switching element electric-type it is connected to the actuator (11).

12. door opener (10) according to claim 11, which is characterized in that the coupling device (13) of the electric-type has Second electronic switching element (24) is connected to first electronic switching element to the second electronic switching element electric-type (21)。

13. the door opener according to any one of claim 9 to 12 (10), which is characterized in that the signal generates single First (12) are designed for generating the coupled signal (19) according to by the electric current of the actuator (11).

14. the door opener according to any one of claim 9 to 13 (10), which is characterized in that the signal generates single First (12) are designed for generating the coupled signal (19) as pulse width modulating signal.

15. a kind of household appliance (1), particularly for nursing the household appliance of washings, the household appliance has according to right It is required that door opener described in any one of 9 to 14 (10) and having door (2), the door can pass through the door opener (10) it is pressed off from closed position.