CN106460299B - Locking device, household appliance and the corresponding method of door for locking household appliance - Google Patents
Locking device, household appliance and the corresponding method of door for locking household appliance Download PDFInfo
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- CN106460299B CN106460299B CN201580025020.7A CN201580025020A CN106460299B CN 106460299 B CN106460299 B CN 106460299B CN 201580025020 A CN201580025020 A CN 201580025020A CN 106460299 B CN106460299 B CN 106460299B
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- control device
- door
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
- D06F39/14—Doors or covers; Securing means therefor
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The present invention relates to a kind of locking devices (6) for locking the door (5) of household appliance (1),It has the locking member (27) for mechanically locking the door (5),For making the locking member (27) according to the driving element (20) for flowing through the electric currents (I) of driving element (20) from unlocked position and moving in latched position,In the unlocked position,The door (5) does not lock,In the latched position,The door (5) is locked by the locking member (27),Wherein,The driving element (20) is electrically coupled with direct voltage source (12),The locking device, which also has, to be electrically coupled with the driving element (20),Switch element (22 for controlling the electric current (I) for flowing through the driving element (20),23),And the locking device has for manipulating the switch element (22,23) control device (25),Wherein,The control device (25) is designed as being used for,The electric current (I) of the driving element (20) is flowed through in order to control and to the switch element (22,23) sequence of pulse (30) is sent.The locking member (6) includes for sensing the DC voltage (V provided by the direct voltage source (12)ZK) current voltage value (V) device, wherein the control device (25) is designed as being used for, according to the current voltage value (V) adjust it is described manipulation pulse (30) pulse length (w).
Description
Technical field
The present invention relates to a kind of locking devices for locking the door of household appliance, have and mechanically lock the door
Locking member, there is driving element especially electric coil, to make locking member from releasing according to the electric current for flowing through driving element
Latched position moves in latched position, and in the unlocked position, door does not lock, in the latched position, door quilt
Locking, wherein driving element is electrically coupled with direct voltage source, and the locking device also has be electrically coupled with driving element, use
The switch element of the electric current of driving element is flowed through in control, and with the control device for control switch component, wherein control
Device is designed as being used for, and flows through the electric current of driving element in order to control and sends manipulation pulse train to switch element.In addition, this hair
It is bright to be related to a kind of household appliance with such locking device and a kind of method for locking the door of household appliance.
Background technology
Currently, the concern of people is particularly concentrated on the locking device of the door for locking laundry machine.From the prior art with
Such locking device for being used for washing machine known to various configuration.In general, here, using electric coil form electromagnet,
The electric coil works as the driving element for hindering device for actual lock, and the lock hinders device for example by the material of soft magnetism
Material is made.If with voltage loading coil, locks resistance device or locking member moves in latched position and is maintained at this
In position, in the latched position, door is mechanically locked and then cannot be opened by a user.
In the prior art, coil is usually transported with the power grid connecting pin direct-coupling of household appliance and then with network voltage
Row.It is described using triacs (Triac) as the switch element of the electric current for controlling flowing through coil
Triacs is manipulated by means of corresponding microcontroller.Such as from known to 0 808 935 A2 of file EP
Such locking device with triac.Here, such situation can be considered controllable using three terminal bidirectional
The shortcomings that transwitch element：The control connecting pin (door) of the triacs necessarily is in the ginseng of power supply network
It examines on potential in neutral potential (N) in other words.This causes again, and microcontroller is also on the reference potential.In modern household
In utensil, it is necessary to ensure that the current isolation between microcontroller and other control devices, the others control device have
Other reference potentials.Thus, for example the engine controll unit for manipulating three-phase brushless d.c. motor synchronous motor in other words must
Must be on reference potential, the reference potential is different from the neutral potential for the power supply network being previously mentioned.Therefore, in order to realizing
Being in communication with each other between different control devices, such as using photoelectrical coupler, current isolation necessary to being responsible for.
Herein, a kind of remedial measure is embodied as being used for the locking of door using direct voltage source, as this is for example in file DE
Illustrate in 10 2,012 010 929 A1.Herein, coil is connected in electric switch circuit, the switching circuit DC voltage
Supply.The DC voltage is for example provided by the networkware (Netzteil) inside motor, and the networkware is by power grid alternating voltage
DC voltage is generated by rectification.Here, DC voltage especially is provided by full-wave rectification by power grid alternating voltage, and it is described
DC voltage can be by voltage smoothly generate, almost constant amplitude.One or more electrical appliances are in and use DC voltage
In the switching circuitry of supply, the electrical appliance may include the electric drive motor of the laundry drum for example for washing machine.By
In the electric current of transistor controls flowing through coil, the effective manipulation pulse manipulation of crystal.In order to obtain wanting for coil current
Change curve, the duty ratio (Tastverhaeltnis) of voltage pulse changes in this way so that voltage pulse is opened in excitation phase
With small duty ratio and towards excitation phase centre with increasing duty ratio when the beginning, until generating coil current most
Big value.
However, if using direct voltage source to power to locking device, arise a problem that：When to electricity consumption
When device releases energy, the DC voltage provided by direct voltage source may collapse (einbrechen).Especially when using capacitor
It is such case when extracting the energy for coil or other electrical appliances as direct voltage source and from the capacitor.So
Afterwards, this extraction of electric energy causes the voltage on capacitor to decline, then the capacitor needs to charge again.The charging of capacitor
The current phase of network voltage is depended on again.When additionally also supplying electricity to other electrical appliance with the electric energy from direct voltage source
When, which also becomes serious.Now, if manipulating transistor with predetermined and constant pulse length manipulation pulse,
May then it occur：The electric energy released to coil in other words power be generally speaking not enough to bring locking member to latched position or
It remains there.In some cases, the operation of the operational safety of household appliance is impossible.
Invention content
Task of the invention lies in illustrate a solution, the locking device of type be such as previously mentioned in introductory song
The locking reliable always of door may be implemented.
According to the present invention, which passes through with locking device, the household device according to corresponding independent claims feature
Tool and method solve.The present invention Favourable implementations be dependent claims, description and accompanying drawings theme.
Locking device according to the present invention is configured to the door of locking household appliance.The locking device includes the machine that is used for
Lock to tool formula the locking member of door.Such as locking member is made of the material of soft magnetism.In addition, locking device includes being used for root
Locking member is set to move to from unlocked position the driving element in latched position according to the electric current for flowing through driving element, described
In unlocked position, door is not locked and therefore can freely be opened by user, and in the latched position, door is locked
Element locks.Driving element is electrically coupled with direct voltage source.The driving element can be such as coil electromagnet in other words.This
Outside, the locking device includes for controlling the switch element for the electric current for flowing through driving element, especially semiconductor switch.It is described to open
Element is closed to be electrically coupled with driving element, is especially electrically coupled in series with driving element.Control device is for control switch component and then passes through
At least one manipulation pulse is sent to switch element to control electric current.According to the present invention, setting, locking member has for sensing
By direct voltage source provide DC voltage current voltage value device, and control device when locking device is run according to
Current voltage value manipulates the pulse length of pulse to adjust.
By the pulse length of current manipulation pulse is determined according to the current voltage height of DC voltage so that determination to
The length for the voltage pulse that driving element is sent realizes：Manipulation pulse pulse length always matched with current voltage value and
Therefore sufficiently electric energy can be sent by constant electrical power and therefore to driving element, can be incited somebody to action by means of the electric energy
Locking member is safely and reliably in band to latched position.Therefore the pulse length of manipulation pulse can be adjusted when voltage value is smaller
Save than, compared with Gao Shi great, so as to always be to ensure that, enough power being sent to driving element in voltage value.Generally speaking, because
This can realize the operational safety of locking device and reliable operation, and this is realized particularly with the use of direct voltage source, institute
Direct voltage source is stated especially to have the advantage that relative to network voltage operation driving element：Control device is not necessarily in electricity
The neutral potential of net voltage is enterprising without taking additional measure for the current isolation between multiple control devices.
Here, household appliance is interpreted as a kind of utensil being used in household.Household appliance is in particular for care of laundry items object
The utensil of part, such as such as washing machine, clothes washer-dryer or dryer.Door is especially appreciated that as a kind of furniture construction, passes through the device
Tool component can close the opening of the laundry drum of household appliance.
As explained in this way, especially using semiconductor switch as switch element, the control of the semiconductor switch
Connecting pin is coupled with control device.Here, PNP bipolar transistor and/or npn bipolar transistor and/or N- can be used for example
MOSFET and/or P-MOSFET and/or IGBT are as semiconductor switch.
In one embodiment, can be arranged, control device is modulated by using pulse width and grasped with pulse train
Control switch element.Then control device can adjust the current duty ratio of manipulation pulse according to current voltage value.Therefore, it manipulates
Pulse can be related to periodically pulsing sequence.In the periodically pulsing sequence, pulse is adjusted according to current voltage value
The proportionate relationship of duration and cycle duration.This aspect has the advantage that：It is possible thereby in not more flowers
Make manipulation pulse train synchronous with network voltage in the case of expense；It on the other hand, can be real in the case of not more cost
The such pulse width with periodically pulsing sequence of row is modulated, because the frequency of manipulation pulse is held substantially constant simultaneously
And it is only necessary to adjust current duty cycle according to correspondingly current voltage value.
Be proved to particularly advantageously, direct voltage source is intermediate circuit, the intermediate circuit with it is whole
Stream device is especially coupled with the output end of full-bridge rectifier, and the full-bridge rectifier is configured to network voltage rectification.Rectification
On the one hand device is especially coupled with the power grid connecting pin of household appliance and is on the other hand coupled with intermediate circuit, thus by
The voltage of rectifier rectification is sent to intermediate circuit and then smooth by intermediate circuit.Therefore, it passes through
The network voltage (virtual value) of rectification and smoothing is applied in intermediate circuit, and the network voltage can be used to manipulate
Locking device.This embodiment has the advantage that：It can be used in household appliance now already existing
Intermediate circuit keeps it in make locking member move in latched position in the latched position in other words.Therefore so that
Have the shortcomings that the use of associated separated direct voltage source becomes extra.
It is preferred that being also additionally also coupled with one with the intermediate current capacitor being previously mentioned with same direct voltage source, especially
Transverter, the transverter are configured to provide the supply voltage of the electric drive motor for household appliance from DC voltage.
That is, targetedly using direct voltage source, the direct voltage source is commonly used in powering to electric drive motor.Herein,
Can especially be arranged, drive motor be multiphase, especially three-phase Brushless DC motor (BLDC) synchronous motor in other words, to change
It flows device and the multiple alternating voltages run for drive motor is generated by DC voltage.It is preferred that the drive motor is for driving household
The laundry drum of utensil.
It is preferred that being applicable in such relationship：DC voltage on direct voltage source is smaller, then one or more manipulates pulses
Pulse length adjusts bigger.In other words, control device can when the voltage value of DC voltage is smaller ratio it is higher in voltage value
When adjust manipulation pulse bigger pulse length, be inversely proportional with the DC voltage on direct voltage source to pulse length.It is logical
Such processing method is crossed always it is ensured that averagely there are enough electric currents to flow through driving element, and the electric current is responsible for locking dress
The safe operation set.
Average value in order to flow through the electric current of driving element is sent to the power constant of driving element, control in turn
The pulse length for manipulating pulse can be adjusted to square be inversely proportional with the voltage value of DC voltage by device.Therefore.It can pacify
Door when being run with utensil that prevents to be in entirely undesirably unlocks.
Such as consult table can be stored in control device, the consult table illustrates the straight of pulse length and direct voltage source
The correlation of galvanic electricity pressure.Control device can then adjust current pulse length by using consult table.Therefore, Ke Yi
It is not realized in the case of more calculating power and pulse length is adjusted according to current voltage value.
Other than the switch element (hereinafter referred to as first switching element) being previously mentioned, locking device can also have at least
One other switch element (hereinafter referred to as second switch element), the other switch element coupled with driving element and
Especially it is electrically connected in series with first switching element and driving element.Control device may be designed so that so that at least first
Second switch element is opened during the manipulation pulse of switch element, to manipulate the second switch member to manipulate pulse train
Part, the manipulation pulse at least have the pulse length with the manipulation pulsion phase of first switching element etc..Therefore, second switch member
One or more manipulation pulses of part and one or more manipulation pulse overlaps of first switching element.Second switch element makes
It is had the advantage that used in safety in operation aspect：When switch element shuts down, can be prevented by other switch elements：With
DC voltage loads actuation member --- especially coil.If detecting one 's in the switch element by control device
Failure defect in other words, can send corresponding alarm signal.
It can also be arranged, the current phase of network voltage be sensed by control device, and according to the phase of network voltage
Generate manipulation pulse train.Manipulation pulse train can be made synchronous with network voltage by this method, also, for instance it can be possible that
When direct voltage source is fully charged, manipulation pulse is generated.Therefore, the too strong of direct voltage source can be reliably prevented to put
Electricity.
It is according to the present invention, include door and for locking door, root particularly for the household appliance of care of laundry items object
According to the locking device of the present invention.
It is used to be locked the door of household appliance according to the method for the present invention by means of locking member, the locking member is according to stream
Electric current through driving element is moved to from unlocked position in latched position, wherein is added with the DC voltage of direct voltage source
It carries driving element and is flowed through the electric current of driving element by means of switch element control, by means of control device to manipulate pulse sequence
Row manipulate the switch element.The current voltage value of DC voltage is sensed, and is adjusted according to current voltage value by control device
Manipulate the pulse length of pulse.
It is correspondingly applicable in the advantages of the preferred embodiment introduced in terms of locking device according to the present invention is with them
In household appliance according to the present invention and for according to the method for the present invention.
The other feature of the present invention is obtained from claim, attached drawing and description of the drawings.It is carried in explanation more than all
To feature and feature combination and following the be previously mentioned in the description of the drawings and/or feature only shown in the accompanying drawings and spy
Sign combination can not only also be combined with others with the combination correspondingly illustrated or is still used alone.
Description of the drawings
Now, with reference to preferred embodiment and the present invention is explained in detail with reference to the appended drawings.
It shows：
Fig. 1 shows household appliance according to the embodiment of the present invention with schematical diagram；
Fig. 2 shows the circuit unit with locking device according to the embodiment of the present invention with schematical diagram；With
Fig. 3 manipulates the correlation of the pulse length and intermediate-circuit direct voltage of pulse.
Specific implementation mode
It is shown in Fig. 1 go out household appliance 1 be such as washing machine.Household appliance 1 includes for receiving clothing object
Laundry drum 2, the laundry drum can be rotatably supported at around horizontal pivot center 4 in the shell 3 of household appliance 1 --- simultaneously
And it is also supported in unshowned liquor container.Clothing object can be put by opening in laundry drum 2, and the opening can borrow
Help the closing of door 5.The user of household appliance 1 can open and close door 5 in known manner.It, can be with if door 5 is closed
It is locked relative to shell 3 by means of locking device 6 and then mechanically fixes the door relative to shell 3, to be no longer able to
Open door 5.
Include electric drive motor 7 to drive laundry drum 2, household appliance 1.User can be by means of operating device 8
It selects the operation program of household appliance 1 wanted and activates operational process.If activation operational process --- it washes herein
Process is washed, then lock door 5 by means of locking device 6 and is just unlocked again after operational process terminates.Therefore door 5 is prevented
It is opened during operational process.
It is as shown in FIG. 2. in this way, circuit unit be household appliance 1 component part and include locking device 6.
Household appliance 1 has power grid connecting pin 9,10, and the power grid connecting pin is on the potential L, N of power supply network.In power grid connecting pin
Network voltage U is provided between 9,10N, which is alternating voltage.Alternating voltage UNBy means of 11 rectification of rectifier, at this
In embodiment, which is that there are four the full-bridge rectifiers of diode for tool.Rectifier 11 is in outlet side and intermediate circuit
Capacitor 12 couples, the smooth rectified voltage of the intermediate circuit.Intermediate-circuit direct voltage VZKIn one side
Between between circuit node 13 and another aspect reference potential 14.Reference potential 14 is the potential different from neutral potential N.In this hair
Under bright meaning, intermediate circuit 12 is direct voltage source.
In the described embodiment, electric drive motor 7 is the synchronous motor of three-phase has the brushless direct-current of permanent magnet in other words
Motor (BLDC).Here, providing the alternating voltage for stator winding, the change of current by means of transverter (Inverters) 15
Device includes having the inverter (Wechselrichter) of multiple transistors and being coupled with intermediate current node 13.That is, in
Between circuit direct voltage ZZKThe alternating voltage for electric drive motor 7 is provided in other words with the electricity from intermediate circuit 12
Transverter 15 can be supplied.Here, manipulating transverter 15 by engine controll unit 16.The engine controll unit 16 is in reference potential 14
It above and with supply voltage supplies, the supply voltage is by means of DC voltage converter 17, such as switching network part by centre
Circuit direct voltage VZKIt provides.Supply voltage can be such as 3.3V or 5V.
Locking device 6 includes the electric switch 18 of door contact site, this contact site only closes when door 5 is closed and in door
5 open when opening.That is, only when door 5 is closed, electric current can flow through switch 18.On the one hand, switch 18 is connect with node 19,
Apply on the node and the identical potential on intermediate circuit node 13.On the other hand, switch 18 and coil or the electromagnetism bodily form
The driving element 20 of formula connects.On the other hand, the driving element 20 is by node 21 and by by the first and second switch members
The series circuit that part 22,23 forms is coupled with reference potential 14.That is, there is by 22,23 groups of driving element 20 and switch element
At series circuit.Unloaded diode 24 makes node 21 be connect with node 19, also, therefore, when switch element 22,23 blocks
It can realize the electric current for flowing through driving element 20.
In this embodiment, switch element 22,23 are configured to npn bipolar transistor.Here, the collection of first switching element 22
Electrode is connect with node 21；The emitter of switch element 22 is connect with the collector of second switch element 23.Second switch element
23 emitter connect with reference potential 14 and then on reference potential 14.For control switch component 22,23, it is provided with micro-
The base connections of the control device 25 of controller form, the control device and switch element 22,23 are connected and are also at
On reference potential 14.The power supply electricity for control device 25 is generated by means of DC voltage converter 26, such as switching network part
It presses (such as 3.3V or 5V).Optionally, control device 25 can also with engine controll unit 16 it is integral construct, to control
Device 25 and engine controll unit 16 are made of unique control device, especially microcontroller.
The electric current I for flowing through driving element 20 causes, and locking member 27 is moved to from unlocked position in latched position,
Door 5 does not lock in the unlocked position, and in the latched position, door 5 is fixed by locking member 27 relative to shell 3
And then it locks.Locking member 27 can be for example including soft magnetism lock hinder device.In order to examine the current of locking member 27
Position, locking member 27 are associated with switch 28, on the one hand on the other hand which couples with node 19 and with control device 25.
If locking member 27 moves in latched position, also closure switch 28, this can correspondingly be detected by control device 25.This
Outside, the node 29 between the emitter of first switching element 22 and the collector of second switch element 23 also with 25 coupling of control device
It closes, to which the electric current for flowing through switch element 22,23 can also be examined and then check valve element 22,23 meets defined function
Mode.
Switch element 22 is manipulated by control device 25.Second switch 23 as discharge cock element use and can with open
Element 22 is closed independently to be steered.It, can be with first switching element 22 synchronously with phase in order to discharge the manipulation of driving element 22
With manipulation pulse train or alternatively with longer pulse manipulation discharge cock element 23, to second switch element 23 to
It is few to be opened during the entire duration of the manipulation pulse 30 of first switching element 22.Alternatively, second switch element 23
It can unchangeably engage (durchgeschaltet).
In order to forbid the manipulation of driving element 20 and then the conversion of prevention magnet valve 28, discharge cock element 23 can be blocked.
Herein, it is preferable that the manipulation of discharge cock element and the independently insurance by being realized in control device 25 of switch element 22
Switching circuit or software function carry out.Therefore, insurance work(can be independently realized with the function command for blocking element 27
Energy.
In a kind of embodiment of replacement, it can also be modulated by using pulse width and be grasped with manipulating 30 sequence of pulse
Control switch element 22.Advantageously, coupling capacitor can be then set between the output end of control device 25 and switch element 22,
The coupling capacitor prevents, and switch element 22 is continuously activated in the case of functional fault.
Locking device 6 also includes for sensing intermediate-circuit direct voltage VZKCurrent voltage value device.Here, current
Voltage value is sensed by control device 25, for this purpose, the control device can have for example separated measurement input terminal (not show
Go out), the measurement input terminal --- for example passing through divider or other dc voltage changers --- is with intermediate circuit node 13
Connection.Addedly or alternatively, intermediate-circuit direct voltage V can be carried out by energization input 31ZKVoltage value sense
It surveys, above mentioned supply voltage passes through the energization input apparatus for controlling of supply 25.
Setting, according to intermediate-circuit direct voltage VZKCurrent voltage value adjust manipulation pulse 30 pulse in time
Length.For this purpose, control device 25 constantly continuously senses intermediate-circuit direct voltage V in other wordsZKMoment at that time voltage
It is worth and controls the pulse length of manipulation pulse 30, the manipulation pulse is sent in first switching element 22, to be in
It will be in 27 band to latched position of locking member when being run with utensil 1.Here, the electrical power being sent in driving element 20 by means of
The pulse length of pulse 30 is manipulated according to intermediate-circuit direct voltage VZKCurrent voltage value adjust in other words with current voltage value
Matching.This matching seems in this way：Manipulate the pulse length and intermediate-circuit direct voltage V of pulse 30ZKSquare be inversely proportional.
This correlation is depicted in figure 3.Here, on the y axis with VoltdcMark intermediate-circuit direct voltage VZK；
The pulse length w of manipulation pulse 30 is marked with millisecond in x-axis.It is such as learnt from Fig. 3, intermediate-circuit direct voltage VZKIt can be big
Change between the higher extreme value of the low extreme value of about 150V and about 400V.In intermediate-circuit direct voltage VZKFor 400V when, if
Set the pulse length w of about 4.4ms.In intermediate-circuit direct voltage VZKFor 150V when, be arranged about 32.6ms pulse length
w.Here, consult table below is stored in control device 25：
| Intermediate-circuit direct voltage [VDC] | Pulse length [ms] |
| 400 | 4.4 |
| 350 | 5.9 |
| 300 | 7.8 |
| 250 | 11.1 |
| 200 | 18.5 |
| 150 | 32.6 |
Correlation shown above is based on considered below：Although using coil as driving element 20, driving member
Also there is part 20 internal Ohmic resistance (internal resistance), the Ohmic resistance of the inside also to influence the energy provided to driving element 20.
The energy received by driving element 20 is obtained from following equation：
E=VIw,
Wherein, E indicates that the electric energy received by driving element 20, V indicate intermediate-circuit direct voltage VZKVoltage value, I tables
Show that the maximum current for flowing through driving element 20 and w indicate pulse length in seconds.If it is assumed that driving element 20
Inductivity is very small, then electric current I is substantially determined by internal resistance：
I=V/R,
Wherein, R indicates the internal resistance of driving element 20.Thus mutual passes below of the pulse length w to voltage value V is obtained
System：
W=ER/V2。
If it is assumed that ENERGY E is constant and resistance R is constant, then the equation can be indicated as follows by means of constant k：
W=k/V2。
Change curve according to fig. 3 meets this correlation.
Control device 25 can also sense network voltage UNCurrent phase and make 30 sequence of manipulation pulse and power grid electricity
Press UNIt is synchronous in this way so that manipulation pulse 30 is generated when intermediate circuit 12 charges.Thus it prevents, intermediate-circuit direct
Voltage VZKToo consumingly decline and such as less than 150V low extreme value.
Modulated using pulse width manipulated with pulse train when, control device 25 constantly or continuously senses
Intermediate-circuit direct voltage VZKMoment at that time voltage value and constantly control manipulation pulse 30 pulse length, the behaviour
Control pulse is constantly sent to first switching element 22, constantly to protect locking member 27 when household appliance 1 is run
It holds in latched position.Here, according to above consideration, the electrical power for being sent to driving element 20 is kept constant in time,
Its mode is to manipulate the pulse length of pulse 30 according to intermediate-circuit direct voltage VZKCurrent voltage value adjust in other words with work as
Preceding voltage value matching.This matching seems in this way：Manipulate the pulse length and intermediate current DC voltage V of pulse 30ZKIt is flat
Side is inversely proportional.
List of reference signs
1 household appliance
2 laundry drums
3 shells
4 pivot centers
5
6 locking devices
7 electric drive motors
8 operating devices
9,10 power grid connecting pins
11 rectifiers
12 intermediate circuits
13 intermediate circuit nodes
14 reference potentials
15 transverters
16 engine controll units
17 dc voltage changers
18 electric switches
19 nodes
20 driving elements
21 nodes
22,23 switch elements
24 unloaded diodes
25 control devices
26 dc voltage changers
27 locking members
28 switches
29 nodes
30 manipulation pulses
31 energization inputs
I electric currents
L potentials
N potentials
UNNetwork voltage
VZKIntermediate-circuit direct voltage
W pulse lengths
Claims (13)
1. locking device (6), is used to lock the door (5) of household appliance (1), the locking device has：
Locking member (27) is used to mechanically lock the door (5),
Driving element (20), be used to make the locking member (27) according to flow through the electric currents (I) of the driving element (20) from
Unlocked position moves in latched position, and in the unlocked position, the door (5) does not lock, in the locking
In position, the door (5) is locked by the locking member (27), wherein the driving element (20) and direct voltage source (12)
It is electrically coupled,
Switch member being electrically coupled with the driving element (20), for controlling the electric current (I) for flowing through the driving element (20)
Part (22,23), and
Control device (25) for manipulating the switch element (22,23), wherein the control device (25) is designed as using
In flowing through the electric current (I) of the driving element (20) in order to control and at least one manipulation pulse (30) be sent to described open
Element (22,23) is closed,
It is characterized in that,
The locking device (6) has for sensing the DC voltage (V provided by the direct voltage source (12)ZK) current electricity
The device of pressure value (V), also, the control device (25) is designed as being used for, according to the current voltage value (V) adjust it is described to
The pulse length (w) of a few manipulation pulse (30).
2. locking device (6) according to claim 1, which is characterized in that the direct voltage source (12) is intermediate circuit
Capacitor, the intermediate circuit are coupled with the output end of rectifier (11), and the rectifier configuration is for power grid electricity
Press (UN) rectification.
3. locking device (6) according to any one of the preceding claims, which is characterized in that transverter (15) with always
Galvanic electricity potential source (12) couples, and the transverter is configured to by the DC voltage (VZK) provide for the household appliance
(1) supply voltage of electric drive motor (7).
4. locking device (6) according to claim 1 or 2, which is characterized in that the control device (25) is designed as using
In in the DC voltage (VZK) voltage value (V) it is relatively low when adjust a ratio in the pulse length of voltage value (V) compared with Gao Shi great
(w)。
5. locking device (6) according to claim 1 or 2, which is characterized in that the control device (25) is designed as using
In square inversely adjusting the pulse length (w) with the voltage value (V).
6. locking device (6) according to claim 1 or 2, which is characterized in that can be deposited in the control device (25)
Consult table is stored up, the consult table illustrates the pulse length (w) and the DC voltage (VZK) correlation, wherein it is described
Control device (25) is designed as being used for, and the pulse length (w) is adjusted by using the consult table.
7. locking device (6) according to claim 1 or 2, which is characterized in that in addition to the switch element (22,23) it
Outside, at least one other switch element (22,23) is coupled with the driving element (20), also, the control device (25)
It is designed as being used for, be opened at least during the manipulation pulse (30) of the switch element (22,23) described at least one other
Switch element (22,23).
8. locking device (6) according to claim 1 or 2, which is characterized in that the control device (25) is designed as using
In being modulated using pulse width and manipulate the switch element (22,23) and according to the current voltage value with pulse train
(V) current duty cycle of the manipulation pulse (30) is adjusted.
9. locking device (6) according to claim 8, which is characterized in that the control device (25) is designed as being used for, sense
Survey network voltage (UN) current phase and according to the network voltage (UN) the phase generate the manipulation pulse (30)
Sequence.
10. locking device (6) according to claim 2, which is characterized in that the rectifier (11) is full-bridge rectifier.
11. household appliance (1), the household appliance is with door (5) and with according to any one of the preceding claims
Locking device (6).
12. household appliance (1) according to claim 11, is used for care of laundry items object.
13. for the method for the door (5) by means of locking member (27) locking household appliance (1), the locking member is according to stream
Electric current (I) through driving element (20) is moved to from unlocked position in latched position, in the unlocked position, institute
It states door (5) not lock, in the latched position, the door (5) is locked, wherein with the direct current of direct voltage source (12)
Press (VZK) load the driving element (20) and flow through the driving element (20) by means of switch element (22,23) control
Electric current (I) manipulates the switch element by means of control device (25) at least one manipulation pulse (30), which is characterized in that
Sense the DC voltage (VZK) current voltage value (V), and by the control device (25) according to the current voltage value
(V) pulse length (w) of the manipulation pulse (30) is adjusted.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014209113.6A DE102014209113A1 (en) | 2014-05-14 | 2014-05-14 | Locking device for locking a door of a household appliance, household appliance and corresponding method |
| DE102014209113.6 | 2014-05-14 | ||
| PCT/EP2015/060208 WO2015173145A1 (en) | 2014-05-14 | 2015-05-08 | Locking device for locking a door of a domestic appliance, domestic appliance, and corresponding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106460299A CN106460299A (en) | 2017-02-22 |
| CN106460299B true CN106460299B (en) | 2018-10-30 |
Family
ID=53052870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580025020.7A Active CN106460299B (en) | 2014-05-14 | 2015-05-08 | Locking device, household appliance and the corresponding method of door for locking household appliance |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3143189B1 (en) |
| CN (1) | CN106460299B (en) |
| DE (1) | DE102014209113A1 (en) |
| ES (1) | ES2665329T3 (en) |
| PL (1) | PL3143189T3 (en) |
| RU (1) | RU2644102C1 (en) |
| WO (1) | WO2015173145A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102385798B1 (en) * | 2017-05-17 | 2022-04-14 | 삼성전자주식회사 | washing machine and controlling method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334637B1 (en) * | 1998-12-18 | 2002-01-01 | Bitron S.P.A. | Locking and unlocking device for the door of a domestic electrical appliance |
| EP1962011A1 (en) * | 2007-02-26 | 2008-08-27 | Diehl AKO Stiftung & Co. KG | Device with controllable protection device |
| DE102010010929A1 (en) * | 2010-03-10 | 2011-09-15 | Airbus Operations Gmbh | Protection of water pipes against frost |
| CN102239289A (en) * | 2008-12-05 | 2011-11-09 | Bsh博世和西门子家用电器有限公司 | Domestic appliance having automatic switch-off |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1289378B1 (en) | 1996-05-22 | 1998-10-02 | Electrolux Zanussi Elettrodome | WASHING MACHINE WITH INSTANT LOCK DOOR |
| DE102005058899A1 (en) * | 2005-12-09 | 2007-06-14 | BSH Bosch und Siemens Hausgeräte GmbH | Circuit arrangement for locking and / or unlocking a door lock, in particular in an electrical domestic appliance |
| DE102007037767A1 (en) * | 2007-02-26 | 2008-08-28 | Diehl Ako Stiftung & Co. Kg | Device with controllable protective device |
| DE102008041724B4 (en) * | 2008-08-29 | 2013-09-05 | Faurecia Innenraum Systeme Gmbh | Closure for a storage compartment of a motor vehicle |
| US8421275B2 (en) * | 2009-11-19 | 2013-04-16 | Electrolux Home Products, Inc. | Apparatus for providing zero standby power control in an appliance |
| CN102782202B (en) * | 2010-03-01 | 2015-09-23 | 伊利诺斯工具制品有限公司 | There is the hood lock of the anti-tamper feature of magnetic |
| DE102011121702C5 (en) * | 2011-12-09 | 2016-08-11 | Assa Abloy Sicherheitstechnik Gmbh | Method for operating an electric door opener, and electric door opener |
| DE102012010929B4 (en) | 2012-06-01 | 2020-02-13 | Emz-Hanauer Gmbh & Co. Kgaa | Locking device for a door of a domestic washing machine |
-
2014
- 2014-05-14 DE DE102014209113.6A patent/DE102014209113A1/en not_active Withdrawn
-
2015
- 2015-05-08 RU RU2016148213A patent/RU2644102C1/en not_active IP Right Cessation
- 2015-05-08 ES ES15720735.8T patent/ES2665329T3/en active Active
- 2015-05-08 PL PL15720735T patent/PL3143189T3/en unknown
- 2015-05-08 EP EP15720735.8A patent/EP3143189B1/en active Active
- 2015-05-08 CN CN201580025020.7A patent/CN106460299B/en active Active
- 2015-05-08 WO PCT/EP2015/060208 patent/WO2015173145A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334637B1 (en) * | 1998-12-18 | 2002-01-01 | Bitron S.P.A. | Locking and unlocking device for the door of a domestic electrical appliance |
| EP1962011A1 (en) * | 2007-02-26 | 2008-08-27 | Diehl AKO Stiftung & Co. KG | Device with controllable protection device |
| CN102239289A (en) * | 2008-12-05 | 2011-11-09 | Bsh博世和西门子家用电器有限公司 | Domestic appliance having automatic switch-off |
| DE102010010929A1 (en) * | 2010-03-10 | 2011-09-15 | Airbus Operations Gmbh | Protection of water pipes against frost |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106460299A (en) | 2017-02-22 |
| DE102014209113A1 (en) | 2015-11-19 |
| ES2665329T3 (en) | 2018-04-25 |
| EP3143189A1 (en) | 2017-03-22 |
| PL3143189T3 (en) | 2018-08-31 |
| EP3143189B1 (en) | 2018-02-28 |
| RU2644102C1 (en) | 2018-02-07 |
| WO2015173145A1 (en) | 2015-11-19 |
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