CN106667403A - Water overflow preventing protection device and water overflow preventing dish-washing machine - Google Patents
Water overflow preventing protection device and water overflow preventing dish-washing machine Download PDFInfo
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- CN106667403A CN106667403A CN201611184589.0A CN201611184589A CN106667403A CN 106667403 A CN106667403 A CN 106667403A CN 201611184589 A CN201611184589 A CN 201611184589A CN 106667403 A CN106667403 A CN 106667403A
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- control unit
- water
- switch
- water level
- micro
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4244—Water-level measuring or regulating arrangements
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- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The invention provides a water overflow preventing protection device and a water overflow preventing dish-washing machine. When it is detected that the water level is not exceeded, a water inlet device control unit is connected with a grounding end through a switch unit to make the water inlet device control unit and a water drainage device control unit operate under control of a micro-control unit. When water level exceeding or overflow is detected, the water drainage device control unit is connected with the grounding end through the switch unit to make the water drainage device control unit begin to drain water and make the water inlet device control unit stop water feeding. A detection unit detects an on-off state of the switch unit to make the micro-control unit determine whether water level exceeding or overflow occurs or not according to the on-off state detected by the detection unit, water overflow preventing protection based on hardness is achieved, and the problem that the MCU cannot detect whether water level exceeding occurs or not due to the fact that a water level exceeding switch is connected in a strong current loop in the prior art is solved.
Description
Technical field
The present invention relates to family's electro-technical field, more particularly to a kind of anti-overflow protection device and anti-overflow dish-washing machine.
Background technology
In some cases, the water in internal cavity of bowl washer can overflow dish-washing machine from inner bag, so as to there is spilling water phenomenon.For
The generation of such case is avoided, the anti-overflow protection device being installed in dish-washing machine is provided in prior art, to occur
The water drained in time in internal cavity of bowl washer during spilling water, it is to avoid continue spilling water.
A kind of typical anti-overflow protection device as shown in figure 1, be to carry out spilling water detection using the MCU of dish-washing machine, MCU with
The switch connection being installed on dish-washing machine chassis, when the water in internal cavity of bowl washer overflows cocurrent to chassis, triggering
, there is spilling water so as to MCU is detected in switch generation action.Further, MCU perform control open drainage arrangement, and close into
This anti-overflow control strategy of water installations.It is a kind of protection mechanism of the software controlled based on MCU but this mode is on the one hand,
If desired the reliability for further enhancing anti-overflow also needs to carry out anti-overflow water conservation using hardware mechanisms；On the other hand, due to
Water can overflow cocurrent to chassis, and the water on chassis cannot be discharged by drainage arrangement, in addition it is also necessary to manual drainage.
Therefore, a kind of anti-overflow protection device of employing hardware mechanisms is also proposed in prior art, on the basis of Fig. 1
On, increased water level switch on the forceful electric power loop powered for water feed apparatus and drainage arrangement, when water level occurred but do not overflowed
When, water level switch action was triggered, for example：It is forcibly turned on drainage arrangement and/or forces to disconnect water feed apparatus.
But this anti-overflow protected mode for crossing water level switch, due to crossing water level switch is connected in forceful electric power loop, therefore,
MCU cannot know the state of water level switch, also just cannot accordingly judge whether water level occurred, when there is water level,
User cannot be pointed out.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.
For this purpose, first purpose of the present invention is to propose a kind of anti-overflow protection device, it is hardware based anti-to realize
Spilling water is protected, and is solved in prior art because water level switch excessively is connected in forceful electric power loop, causes MCU to detect whether occur
Cross water level.
Second object of the present invention is to propose a kind of anti-overflow dish-washing machine.
It is that, up to above-mentioned purpose, first aspect present invention embodiment proposes a kind of anti-overflow protection device, micro-control unit,
Water feed apparatus control unit, drainage arrangement control unit, detector unit and switch element；
The switch element, respectively with the micro-control unit, the water feed apparatus control unit, the drainage arrangement control
Unit processed and the detector unit connect；The micro-control unit, fills respectively with the water feed apparatus control unit, the draining
Put control unit and detector unit connection；
When detect there is not water level when, the water feed apparatus control unit is connected by the switch element and earth terminal
Connect, so that the water feed apparatus control unit and the drainage arrangement control unit are run under the micro-control unit controls；
When detect there is water level or spilling water when, the drainage arrangement control unit by the switch element with ground connection
End connection, so that the drainage arrangement control unit starts draining, and makes the water feed apparatus control unit stop water inlet；
The detector unit detects the on off operating mode of the switch element, so that the micro-control unit is according to the detection
On off operating mode detected by unit, it is determined whether water level or spilling water occurred.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the switch element includes：Single-pole double throw
Switch, the first end of the single-pole double-throw switch (SPDT) is connected with the earth terminal, wherein, the first end of the switch element is described
The common port of single-pole double-throw switch (SPDT).
Alternatively, as a kind of possible implementation of the embodiment of the present invention, described device also includes first switch three
Level pipe and second switch triode；
The first end of the first switch triode is connected with the water feed apparatus control unit；
Second end of the first switch triode is connected with the micro-control unit；
3rd end of the first switch triode is connected with the second end of the switch element；
The first end of the second switch triode controls respectively single with the 3rd end of the switch element and the draining
Unit's connection；
Second end of the second switch triode is connected with the micro-control unit；
The 3rd end ground connection of the second switch triode.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the detector unit includes：Condenser network
And resistance circuit；
One end of the condenser network is connected by the resistance circuit with reference point of potential；
The other end ground connection of the condenser network；
One end of the condenser network is connected with the second end of the switch element, and connects with the micro-control unit
Connect；
The other end of the condenser network is connected with the first end of the switch element.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the condenser network includes：Resistance, with
And the first electric capacity parallel with one another and the second electric capacity；
One end of the resistance is connected with described first electric capacity one end, and is connected with one end of second electric capacity；
The other end of first electric capacity, and the other end ground connection of second electric capacity；
One end of first electric capacity is connected with micro-control unit；
One end of second electric capacity is connected with the second end of the switch element.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the reference point of potential is+5V.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the micro-control unit includes MCU core
Piece.
The anti-overflow protection device of the embodiment of the present invention, when detect there is not water level when, water feed apparatus control unit
It is connected with earth terminal by switch element, so that water feed apparatus control unit and drainage arrangement control unit are in micro-control unit control
The lower operation of system；When detect there is water level or spilling water when, drainage arrangement control unit is connected by switch element with earth terminal,
So that drainage arrangement control unit starts draining, and water feed apparatus control unit is set to stop water inlet.It is described by detector unit detection
The on off operating mode of switch element, so that on off operating mode of the micro-control unit according to detected by the detector unit, it is determined that
Whether there is water level or spilling water, realized hardware based anti-overflow water conservation, and solved in prior art and opened due to crossing water level
Pass is connected in forceful electric power loop, causes MCU to detect whether the technical problem for water level occurred.
It is that, up to above-mentioned purpose, second aspect present invention embodiment proposes a kind of anti-overflow dish-washing machine, including：First aspect
Described anti-overflow protection device.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, opening in the anti-overflow protection device
Closing unit includes water level detecting component；
The water level detecting component is installed in the inner bag of the anti-overflow dish-washing machine, for detecting whether there is water level
Or spilling water.
Alternatively, as a kind of possible implementation of the embodiment of the present invention, the water level detecting component is opened with described
Close the single-pole double-throw switch (SPDT) connection in unit；
The water level detecting component stirs the single-pole double-throw switch (SPDT) under the triggering of water level.
The anti-overflow dish-washing machine of the embodiment of the present invention, when detect there is not water level when, water feed apparatus control unit lead to
Cross switch element to be connected with earth terminal, so that water feed apparatus control unit and drainage arrangement control unit are in micro-control unit controls
Lower operation；When detect there is water level or spilling water when, drainage arrangement control unit is connected by switch element with earth terminal, with
Make drainage arrangement control unit start draining, and make water feed apparatus control unit stop water inlet.Open described in detector unit is detected
The on off operating mode of unit is closed, so that on off operating mode of the micro-control unit according to detected by the detector unit, it is determined that being
It is no water level or spilling water occurred, hardware based anti-overflow water conservation is realized, solve in prior art due to crossing water level switch
It is to be connected in forceful electric power loop, causes MCU to detect whether the technical problem for water level occurred.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect of the present invention and advantage will become from the following description of the accompanying drawings of embodiments
It is substantially and easy to understand, wherein：
Fig. 1 is the schematic diagram of anti-overflow protection device of the prior art；
Fig. 2 is a kind of structural representation of anti-overflow protection device provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another kind of anti-overflow protection device provided in an embodiment of the present invention；And
Fig. 4 is the circuit diagram of another kind of anti-overflow protection device provided in an embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
Below with reference to the accompanying drawings the anti-overflow protection device and anti-overflow dish-washing machine of the embodiment of the present invention are described.
Fig. 2 is a kind of structural representation of anti-overflow protection device provided in an embodiment of the present invention.
As shown in Fig. 2 anti-overflow protection device includes：Micro-control unit, water feed apparatus control unit, drainage arrangement control
Unit, detector unit and switch element.
Wherein, switch element, respectively with micro-control unit, water feed apparatus control unit, drainage arrangement control unit and inspection
Survey unit connection.
Micro-control unit, is connected respectively with water feed apparatus control unit, drainage arrangement control unit and detector unit.
When detect there is not water level when, the water feed apparatus control unit is connected by the switch element and earth terminal
Connect, so that the water feed apparatus control unit and the drainage arrangement control unit are run under the micro-control unit controls.
When detect there is water level or spilling water when, the drainage arrangement control unit by the switch element with ground connection
End connection, so that the drainage arrangement control unit brings into operation, and makes the water feed apparatus control unit out of service.
The on off operating mode of detector unit detection switch unit, so that micro-control unit is logical according to detected by detector unit
Disconnected state, it is determined whether water level or spilling water occurred.
In the present embodiment, when detect there is not water level when, water feed apparatus control unit by switch element with ground connection
End connection, so that water feed apparatus control unit and drainage arrangement control unit are run under micro-control unit controls；When detecting
When there is water level or spilling water, drainage arrangement control unit is connected by switch element with earth terminal, so that drainage arrangement control
Unit starts draining, and makes water feed apparatus control unit stop water inlet.The break-make shape of the switch element is detected by detector unit
State, so that on off operating mode of the micro-control unit according to detected by the detector unit, it is determined whether occurred water level or
Spilling water, realizes hardware based anti-overflow water conservation, solves in prior art because water level switch excessively is to be connected on forceful electric power loop
In, cause MCU to detect whether the technical problem for water level occurred.
For the aforesaid anti-overflow protection device of clear explanation, another kind of anti-overflow protection device is present embodiments provided,
Fig. 3 is the schematic diagram of another kind of anti-overflow protection device provided in an embodiment of the present invention.
As shown in Figure 3, there is provided a kind of specific switch element.Switch element, including single-pole double-throw switch (SPDT), single-pole double throw
The first end of switch is connected with the earth terminal, and the first end of switch element is the common port of single-pole double-throw switch (SPDT).
Specifically, anti-overflow protection device also includes first switch triode and second switch triode, first switch three
The first end of level pipe is connected with water feed apparatus control unit, and the second end of first switch triode is connected with micro-control unit, the
3rd end of one switch triode is connected with the second end of switch element.The first end of second switch triode is opened respectively with described
The 3rd end and the draining control unit connection of unit are closed, the second end and the micro-control unit of second switch triode connect
Connect, the 3rd end ground connection of second switch triode.
Further, in a kind of possible implementation of the embodiment of the present invention, detector unit includes：Condenser network and
Resistance circuit.
As shown in figure 3, one end of condenser network is connected by the resistance circuit with reference point of potential；The condenser network
The other end ground connection；One end of the condenser network is connected with the second end of the single-pole double-throw switch (SPDT), and with the micro-control
Unit connection processed；The other end of the condenser network is connected with the first end of the single-pole double-throw switch (SPDT).
Further, on the basis of Fig. 3, the present embodiment additionally provides a kind of circuit of specific anti-overflow protection device,
Fig. 4 is the circuit diagram of another kind of anti-overflow protection device provided in an embodiment of the present invention.
As shown in figure 4, micro-control unit is specially MCU.
For detector unit, including condenser network and resistance circuit, wherein, resistance circuit includes resistance R11, resistance R11
One end connects reference point of potential, and the reference point of potential is+5V.
One end of condenser network is connected by resistance R11 with reference point of potential, the other end ground connection of condenser network, electric capacity electricity
The one end on road is connected with second end of single-pole double-throw switch (SPDT) SW1, and is connected with micro-control unit MCU；Condenser network it is another
End is connected with the first end of single-pole double-throw switch (SPDT) SW1.
As shown in figure 4, condenser network is specifically included：Resistance R12, and the first electric capacity C12 parallel with one another and second electric
Hold C11.
Specifically, one end of resistance R12 is connected with described first electric capacity C12 one end, and with the second electric capacity C11's
One end connects.The other end of the first electric capacity C12, and the other end ground connection of the second electric capacity C11.The one of first electric capacity C12
End is connected with micro-control unit MCU；One end of second electric capacity C11 is connected with second end of single-pole double-throw switch (SPDT) SW1.
For switch element, as shown in figure 4, switch element includes single-pole double-throw switch (SPDT) SW1.
In the diagram, also include in anti-overflow protection device：Second switch triode Q2 and first switch triode Q1.The
The first end of two switch triode Q2 is connected with draining control unit, second end of second switch triode Q2 by resistance R2 with
Micro-control unit MCU connects, the 3rd end ground connection of second switch triode Q2.
The first end of first switch triode Q1 is connected with water feed apparatus control unit, and the second of first switch triode Q1
End is connected by resistance R1 with micro-control unit MCU, the first end of single-pole double-throw switch (SPDT) SW1 and electric capacity in the detector unit
One end connection of C11, second end of single-pole double-throw switch (SPDT) SW1 and the three-terminal link of first switch triode Q1, single-pole double throw
3rd end of switch SW1 is connected with draining control unit.
As shown in figure 4, be directed to into water control unit, including diode D1 and relay REL1 in parallel therewith, diode
One end connection reference point of potential+12V of D1, the other end of diode D1 connects the first end of first switch triode Q1.
Further, for draining control unit, as shown in figure 4, including：Diode D2 and relay in parallel therewith
The of the other end connection single-pole double-throw switch (SPDT) SW1 of one end connection reference point of potential+12V of REL2, diode D2, diode D1
Three ends.
For the ease of the understanding to the present embodiment, the present embodiment realizes that principle is briefly situated between to anti-overflow protection device
Continue.
As shown in figure 4, SW1 is a single-pole double-throw switch (SPDT), wherein, first end is common port, do not occurred water level or
During spilling water, first end is connected with the second end, and disconnects, in this state, water feed apparatus control unit and draining with the 3rd end
Device control units is controlled completely by micro-control unit MCU.
When water level occurred and not yet chassis is spilt into, the first end of single-pole double-throw switch (SPDT) SW1 is connected with the 3rd end, and
Disconnect with the second end, in this state, while drainage arrangement control unit is forced to connect, water feed apparatus control unit quilt
Force to disconnect.Work of the drainage arrangement under the control of drainage arrangement control unit so that water level is gradually reduced, and works as single-pole double throw
When switch SW1 returns to the state for not crossing water level, drainage arrangement control unit and water feed apparatus control unit are recovered by microcontroller
Unit MCU is controlled.
Additionally, the first end of single-pole double-throw switch (SPDT) SW1 and the second end also detection circuit for access, by detecting electric circuit inspection list
On off operating mode between the first end of double-pole double throw switch SW1 and the second end, knows current level situation, that is, whether cross water level, enters
And by corresponding information alert to user, for example：Water level situation is shown on display interface.
In the present embodiment, by when detect there is water level or spilling water when, the switch element disconnects the microcontroller
The connection of unit and the water feed apparatus control unit, and disconnect the micro-control unit and the drainage arrangement control unit
Connection；And the switch element controls the drainage arrangement control unit and brings into operation, and control the water feed apparatus
Control unit is out of service, and detects the on off operating mode of the switch element by detector unit, so that the micro-control unit root
According to the on off operating mode detected by the detector unit, it is determined whether water level or spilling water occurred, realize hardware based anti-
Spilling water is protected, and is solved in prior art because water level switch excessively is connected in forceful electric power loop, causes MCU to detect whether out
Now cross the technical problem of water level.
It should be noted that in figs. 3 and 4, in order to describe simplicity, the describing mode of pin 1, pin 2 and pin 3 is employed,
Wherein, the corresponding first end of pin 1, second end of the correspondence of pin 2, the 3rd end of the correspondence of pin 3.
The embodiment of the present invention additionally provides a kind of anti-overflow dish-washing machine, including aforesaid anti-overflow protection device.
Specifically, the switch element in anti-overflow protection device also includes water level detecting component.
The water level detecting component is installed in the inner bag of the anti-overflow dish-washing machine, for detecting whether occurred water level or
Spilling water.
Further, water level detecting component is connected with the single-pole double-throw switch (SPDT) in the switch element, and water level detecting component exists
Under the triggering of water level, the single-pole double-throw switch (SPDT) is stirred.Used as a kind of possible implementation, water level detecting component can be used for
Sensed water level height, water level detecting component and single-pole double-throw switch (SPDT) are monolithically fabricated.
For example：The air of pressure-type switch internal due in internal cavity of bowl washer water level promoting receive extruding, cause air pressure liter
Height, under the promotion of air pressure, stirs single-pole double-throw switch (SPDT), changes the on off operating mode of single-pole double-throw switch (SPDT).
The dish-washing machine that this enforcement is provided, when detect there is water level or spilling water when, the switch element disconnects described
The connection of micro-control unit and the water feed apparatus control unit, and disconnect the micro-control unit and the drainage arrangement control
The connection of unit processed；And the switch element controls the drainage arrangement control unit and brings into operation, and enters described in control
Water installations control unit is out of service, and detects the on off operating mode of the switch element by detector unit, so that the microcontroller
On off operating mode of the unit according to detected by the detector unit, it is determined whether water level or spilling water occurred, realizes based on hard
The anti-overflow water conservation of part, solves in prior art because water level switch excessively is connected in forceful electric power loop, causes MCU to detect
Whether the technical problem of water level was occurred.Also, because when water level is crossed, dish-washing machine has carried out in time anti-overflow water conservation, it is to avoid
In the water Liu Dao chassis overflowed in inner bag, the process of manual cleaning is also avoided.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combine in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise expressly limited specifically.
In flow chart or here any process described otherwise above or method description are construed as, expression includes
It is one or more for realizing custom logic function or process the step of the module of code of executable instruction, fragment or portion
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
In flow charts expression or here logic described otherwise above and/or step, for example, are considered use
In the order list of the executable instruction for realizing logic function, in may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (as computer based system, the system including processor or other can hold from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or with reference to these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
The dress that defeated program is used for instruction execution system, device or equipment or with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：With the electricity that one or more are connected up
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can thereon print described program or other are suitable
Medium, because for example by carrying out optical scanner to paper or other media edlin, interpretation can then be entered or if necessary with it
His suitable method is processed to electronically obtain described program, in being then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realizing.Such as, if realized with hardware with another embodiment, can be with following skill well known in the art
Any one of art or their combination are realizing：With for data-signal is realized logic function logic gates from
Scattered logic circuit, the special IC with suitable combinational logic gate circuit, programmable gate array (PGA), scene can compile
Journey gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Suddenly the hardware that can be by program to instruct correlation is completed, and described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
Additionally, each functional unit in each embodiment of the invention can be integrated in a processing module, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a module.Above-mentioned integrated mould
Block both can be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized and as independent production marketing or when using using in the form of software function module, it is also possible to be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..Although having shown that above and retouching
Embodiments of the invention are stated, it is to be understood that above-described embodiment is exemplary, it is impossible to be interpreted as the limit to the present invention
System, one of ordinary skill in the art can be changed to above-described embodiment, change, replace and become within the scope of the invention
Type.
Claims (9)
1. a kind of anti-overflow protection device, it is characterised in that described device includes：Micro-control unit, water feed apparatus control unit,
Drainage arrangement control unit, detector unit and switch element；
The switch element, it is single with the micro-control unit, the water feed apparatus control unit, drainage arrangement control respectively
First and described detector unit connection；The micro-control unit, respectively with the water feed apparatus control unit, the drainage arrangement control
Unit processed and the detector unit connect；
When detect there is not water level when, the water feed apparatus control unit is connected by the switch element with earth terminal,
So that the water feed apparatus control unit and the drainage arrangement control unit are run under the micro-control unit controls；
When detect there is water level or spilling water when, the drainage arrangement control unit is connected by the switch element and earth terminal
Connect, so that the drainage arrangement control unit starts draining, and make the water feed apparatus control unit stop water inlet；
The detector unit detects the on off operating mode of the switch element, so that the micro-control unit is according to the detector unit
Detected on off operating mode, it is determined whether water level or spilling water occurred.
2. anti-overflow protection device according to claim 1, it is characterised in that the switch element includes：Single-pole double throw
Switch, the first end of the single-pole double-throw switch (SPDT) is connected with the earth terminal, wherein, the first end of the switch element is described
The common port of single-pole double-throw switch (SPDT).
3. anti-overflow protection device according to claim 2, it is characterised in that described device also includes first switch three-level
Pipe and second switch triode；
The first end of the first switch triode is connected with the water feed apparatus control unit；
Second end of the first switch triode is connected with the micro-control unit；
3rd end of the first switch triode is connected with the second end of the switch element；
The first end of the second switch triode connects respectively with the 3rd end of the switch element and the draining control unit
Connect；
Second end of the second switch triode is connected with the micro-control unit；
The 3rd end ground connection of the second switch triode.
4. anti-overflow protection device according to claim 3, it is characterised in that the detector unit includes：Condenser network
And resistance circuit；
One end of the condenser network is connected by the resistance circuit with reference point of potential；
The other end ground connection of the condenser network；
One end of the condenser network is connected with the second end of the switch element, and is connected with the micro-control unit；
The other end of the condenser network is connected with the first end of the switch element.
5. anti-overflow protection device according to claim 4, it is characterised in that the condenser network includes：Resistance, and
First electric capacity parallel with one another and the second electric capacity；
One end of the resistance is connected with described first electric capacity one end, and is connected with one end of second electric capacity；
The other end of first electric capacity, and the other end ground connection of second electric capacity；
One end of first electric capacity is connected with micro-control unit；
One end of second electric capacity is connected with the second end of the switch element.
6. the anti-overflow protection device according to any one of claim 1-5, it is characterised in that the micro-control unit includes
MCU chip.
7. a kind of anti-overflow dish-washing machine, it is characterised in that the anti-overflow dish-washing machine is included as described in any one of claim 1-6
Anti-overflow protection device.
8. anti-overflow dish-washing machine according to claim 7, it is characterised in that the switch list in the anti-overflow protection device
Unit includes water level detecting component；
The water level detecting component is installed in the inner bag of the anti-overflow dish-washing machine, for detecting whether water level occurred or overflowing
Water.
9. anti-overflow dish-washing machine according to claim 8, it is characterised in that the water level detecting component and the switch are single
Single-pole double-throw switch (SPDT) connection in unit；
The water level detecting component stirs the single-pole double-throw switch (SPDT) under the triggering of water level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108095652A (en) * | 2017-12-19 | 2018-06-01 | 宁波欧琳厨具有限公司 | A kind of dish-washing machine high water level protective device |
| CN108720785A (en) * | 2018-05-30 | 2018-11-02 | 九阳股份有限公司 | A kind of table dish-washer controlling Method for inflow |
| CN109008879A (en) * | 2018-08-31 | 2018-12-18 | 杭州川月科技有限公司 | Water-supply control for dish-washing machine |
| CN110811473A (en) * | 2018-08-10 | 2020-02-21 | 青岛海尔洗碗机有限公司 | Anti-overflow method and dish washing machine |
| CN113455985A (en) * | 2021-07-30 | 2021-10-01 | 珠海格力电器股份有限公司 | Drainage control method, dish washing machine, storage medium and equipment |
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Effective date of registration: 20220829 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 20 Beijiao Road, Beijiao Town, Shunde District, Foshan, Guangdong Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |