CN105229539B - Electric equipment - Google Patents
Electric equipment Download PDFInfo
- Publication number
- CN105229539B CN105229539B CN201480028991.2A CN201480028991A CN105229539B CN 105229539 B CN105229539 B CN 105229539B CN 201480028991 A CN201480028991 A CN 201480028991A CN 105229539 B CN105229539 B CN 105229539B
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- CN
- China
- Prior art keywords
- power supply
- circuit
- control
- control unit
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 5
- 238000005406 washing Methods 0.000 abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 24
- 230000005611 electricity Effects 0.000 description 18
- 238000006243 chemical reaction Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 239000003599 detergent Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/10—Power supply arrangements, e.g. stand-by circuits
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/001—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection limiting speed of change of electric quantities, e.g. soft switching on or off
-
- 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
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/04—Signal transfer or data transmission arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/21—Pc I-O input output
- G05B2219/21169—Low voltage protection
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2633—Washing, laundry
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
A kind of electric equipment, possess control unit (42) and auto-reset type power on switch (11), wherein, the control unit (42) performs washing operating, is powered to the control unit (42) via control power supply unit (48) from source power supply (40).It is also equipped with：Resistance (12), it is connected in series with power on switch (11)；And power supply relay (13), it is connected in parallel with power on switch (11) and resistance (12), switchs the operation of (11) by power on and connects.Be also equipped with power on switch (11) be connected in parallel and connection in series with a resistor latching relay (14).In service restoration, powered to control power supply unit (48) via latching relay (14) and resistance (12) from source power supply (40).
Description
Technical field
The starting characteristic of control device during the present invention relates to service restoration is improved to improve the laundry of reliability
The electric equipments such as machine, drying machine, dish cleaning machine.
Background technology
In the conventional washing machine for taking countermeasure when having a power failure and recovering electric power, there is one kind in source power supply and control
The washing machine of switching device is provided with electrical path between power circuit processed.Switching device is operated by using person
And close electrical path, and be kept closed after closure, untill user makes disconnection instruction.And,
Normally terminated based on washing operating or by dump instruction generating unit generate dump instruction and by electrical path
Disconnect (referring for example to patent document 1).
However, there is problems with conventional washing machine：Can all have whenever service restoration big surge current to
Electrical path, pressure is applied to the electronic unit on electrical path.
Patent document 1：Japanese Unexamined Patent Publication 2010-75351 publications
The content of the invention
The present invention is conventional for solving the problems, such as, there is provided a kind of wave that can suppress to flow to electrical path in service restoration
Electric current is gushed to improve the electric equipment of the reliability of controlling power circuit.
Electric equipment of the invention possesses control unit and auto-reset type power on switch, wherein, the control unit performs electricity
The operating of equipment, powers via control power supply unit from source power supply to the control unit.It is also equipped with：Resistance, it is opened with power on
Pass is connected in series；Power supply relay, it is switched with power on and resistor coupled in parallel is connected, by the operation of power on switch
Connect；And latching relay, it is connected with power on switch in parallel, and connection in series with a resistor.In service restoration, from
Source power supply is powered via latching relay and resistance to control power supply unit.
According to the structure, the surge current from source power supply traffic organising power supply unit can be suppressed in service restoration, because
This can improve the reliability of control power supply unit.
Electric equipment of the invention, the starting characteristic of control device when can improve service restoration is improving reliability
Property.
Brief description of the drawings
Fig. 1 is the profile of the washing machine as electric equipment of embodiments of the present invention 1.
Fig. 2 is the control block diagram of the electric equipment of embodiments of the present invention 1.
Fig. 3 is the control block diagram of the electric equipment of embodiments of the present invention 2.
Fig. 4 is the circuit of the detailed content of a part for the control block diagram of the electric equipment for representing embodiments of the present invention 2
Figure.
Fig. 5 is the control block diagram of the electric equipment of embodiments of the present invention 3.
Specific embodiment
Below, while one side illustrates to embodiments of the present invention referring to the drawings.Additionally, being not using these realities
Mode is applied to limit the present invention.
Additionally, use in the following description " on ", D score, "left", "right" etc. represent that the term in direction is intended merely to
Make explanation clear, be not that any restriction is carried out to electric equipment of the invention.
(implementation method 1)
As electric equipment, illustrated by taking washing machine as an example.
Fig. 1 is the profilograph of the washing machine as electric equipment of embodiments of the present invention 1.Fig. 2 is the electric equipment
Control block diagram.Additionally, electric equipment is not only washing machine 100, for example can also be drying machine, dish cleaning machine etc..
In Fig. 1, washing machine 100 possesses housing 110 and the accepting groove 200 of clothing is housed in housing 110.Accepting groove
200 possess rotating cylinder 210 and house the tank 220 of rotating cylinder 210, wherein, the rotating cylinder 210 has encirclement rotary shaft
The perisporium 211 of the substantially cylindrical shape of RX.
Housing 110 possesses antetheca 111 and rear wall 112, wherein, the antetheca 111 is formed with for putting into clothing to accepting groove 200
The input port of thing, the rear wall 112 is located at the opposition side of antetheca 111.Rotating cylinder 210 and tank 220 are open towards antetheca 111.
Washing machine 100 is also equipped with being installed on the door body 120 of antetheca 111.Door body 120 will be formed in the input of antetheca 111
Rotated between the closed position of mouth closing and the open position for opening input port.User can make door body 120 turn to beat
Open position, clothing is put into by the input port of antetheca 111 to accepting groove 200.Afterwards, user can move to door body 120
Closed position, and washing machine 100 is washed clothing.Additionally, the door body 120 shown in Fig. 1 turns to closed position.
Rotating cylinder 210 is rotated around the rotary shaft RX extended between antetheca 111 and rear wall 112.It is put to
Clothing in accepting groove 200 is moved along with the rotation of rotating cylinder 210 in rotating cylinder 210, so as to be washed, floated
The various treatment washed and/or be dehydrated etc.
Rotating cylinder 210 possesses the bottom wall 212 opposite with door body in the closed position 120.Tank 220 possesses bottom
221 and anterior 222, wherein, the bottom 221 surrounds the bottom wall 212 of rotating cylinder 210 and a part for perisporium 211, the front portion
The other parts of 222 perisporiums 211 that rotating cylinder 210 is surrounded between bottom 221 and door body 120.
Accepting groove 200 possesses the rotating shaft 230 of the bottom wall 212 for being installed on rotating cylinder 210.Rotating shaft 230 is along rotary shaft RX
Extend to rear wall 112.Rotating shaft 230 is through the bottom 221 of tank 220 and extends between tank 220 and rear wall 112.
Washing machine 100 is also equipped with motor 231, belt pulley 232 and belt 233.Motor 231 is placed in tank 220
Lower section.Belt pulley 232 is installed on the rotating shaft 230 exposed outside screw clamp 220.Be delivered to for the power of motor 231 by belt 233
Belt pulley 232.When motor 231 works, the power of motor 231 is passed to belt 233, belt pulley 232 and rotating shaft
230.As a result, rotating cylinder 210 is rotated in tank 220.
Washing machine 100 is also equipped with seal 130, the seal 130 be disposed in anterior the 222 of tank 220 with door body 120 it
Between.Turn to the compressive seal 130 of door body 120 of closed position.As a result, seal 130 door body 120 with anterior 222 it
Between formed water-stop construction.
Housing 110 possesses housing top wall 113 and the shell bottom wall 114 positioned at the opposition side of housing top wall 113, wherein, should
Housing top wall 113 substantially horizontally extends between antetheca 111 and rear wall 112.Washing machine 100 is also equipped with being connected to tap
The feed water inlet 140 of (not shown) and the dispenser 141 for distributing the water imported via feed water inlet 140.Feed water inlet 140 is disposed in
Rear wall 112.Dispenser 140 is disposed between housing top wall 113 and accepting groove 200.As a part for dispenser 140, possess
Feed water valve 310.
Washing machine 100 is also equipped with housing the detergent resettlement section (not shown) of detergent.Dispenser 141 possesses for receipts
Tank 200 and detergent resettlement section selectively supply multiple feed water valves of water.Additionally, be additionally provided with being supplied to detergent resettlement section
The water supply path (not shown) of water.For the water supply to accepting groove 200 and detergent resettlement section, can preferably using known
The technology that washing machine is used.
Washing machine 100 is also equipped with guidance panel 400.The guidance panel 400 is for example arranged at antetheca 111.In the operating surface
Power on switch 11, power cut-out switch 17, input configuration part 50 and display part 51 are provided with plate 400.Power on
Switch 11 and power cut-out switch 17 include auto-reset type by compressing switch.In the setting of the display input of display part 51 configuration part 50
Appearance, operating state etc..
Washing machine 100 is also equipped with control device 410.Control device 410 is for example arranged under housing top wall 113.
Then, the control to electric equipment is illustrated.
Fig. 2 is the control block diagram of the electric equipment of embodiments of the present invention 1.
In fig. 2, control unit 42 is including microcomputer etc..Control unit 42 is connected with input configuration part 50, display part 51, lid
Opening and closing sensor 52, turn-sensitive device circuit 235, level sensing unit 53 and nonvolatile memory 54.Turn-sensitive device electricity
The rotating speed of the motor sensor 231 of road 235.Change in the sensing tank 220 of level sensing unit 53.
Also, the control power supply relay drive circuit 21, motor drive circuit 234, draining pump of control unit 42 drives electricity
The action of road 321, water supply valve-driving circuit 311 etc. is come each action for controlling to wash, rinse, be dehydrated.Power supply relay drives electricity
The driving power supply relay 13 of road 21.The drive motor 231 of motor drive circuit 234.Draining pump drive circuit 321 drives draining
Pump 320.Water supply valve-driving circuit 311 is driven to the feed water valve 310 supplied water in tank 220.
Nonvolatile memory 54 is to include EEPROM (Electrically Erasable Programmable Read-
Only Memory：EEPROM) etc. external storage portion.Nonvolatile memory 54 is according to carrying out automatic control
The write signal in portion processed 42 washs the operation conditions for operating, operating content to write and store.In addition it is also possible to be control unit 42
Possesses nonvolatile memory 54.
Controlling power circuit 48 is to change D/C power (direct obtained from source power supply 40 by with conversion electric power etc.
current：Dc source).Controlling power circuit 48 to control unit 42, dc source VA, respectively load supply of electrical energy.
Control unit 42 as washing operation control section function be：By the operation control routine that prestores of execution come
Control motor 231, draining pump 320, feed water valve 310, so as to gradually perform washing, rinsing, the series of processes of dehydration.As
, there are various programs in washing running program in this case.
One power supply terminal of source power supply 40 is connected with an input terminal of controlling power circuit 48, source power supply 40
Another power supply terminal be connected with another input terminal of controlling power circuit 48 via switching device 10.The control power supply
Two lead-out terminals of circuit 48 are connected to the power input terminal of control unit 42.As a result, switching device 10 is arranged at business
With the electrical path 40a between power supply 40 and controlling power circuit 48.
Switching device 10 possesses power on switch 11, resistance 12, power supply relay 13, latching relay 14, connection use
Coil 15 and disconnection coil 16.
Power on switch 11 and resistance 12 are connected in series in the energization between source power supply 40 and controlling power circuit 48
Path 40a.
Power on switch 11 includes manually connecting the auto-reset type for closing electrical path 40a by pressing off
Close.In order to suppress to flow to the surge of electrical path 40a, 40b when power on switch 11 is switched on manually or during service restoration
Electric current and be connected to resistance 12.
Power supply relay drive circuit 21 is driven according to the pulse signal from control unit 42, thereby turns on power supply
Relay 13, power supply relay 13 closes electrical path 40a.
Latching relay 14 is connected in parallel with power on switch 11.Be powered by docking universal coil 15 and by self-locking after
Electrical equipment 14 is closed, even if also, universal coil 15 is connect after closure power off, latching relay 14 is also kept closed.When
When disconnection coil 16 is energized, latching relay 14 disconnects.Thus, as long as disconnection coil 16 is not energized, self-locking relay
Device 14 is just always maintained at closure state.
Power on switch 11 is connected in series with resistance 12, and both are connected in parallel with power supply relay 13.Latching relay
14 are connected in parallel with power on switch 11.
During power failure, power supply relay 13 is off, and latching relay 14 is in closure state.When in service restoration
When being powered to source power supply 40, because latching relay 14 is connected in series with resistance 12, therefore, it is possible to suppress to flow to circuit passband
The surge current of footpath 40a, 40b.
Latching relay drive circuit 18 carries out control system of switching on or off electricity by docking universal coil 15 and disconnection with coil 16, comes
Control is opened and closed to latching relay 14.Latching relay drive circuit 18 possesses NPN transistor 19 and NPN transistor
20.Now, NPN transistor 19 is for making to connect the switch element that universal coil 15 is switched on and off.NPN transistor 20 is
For the switch element for switching on and off disconnection coil 16.
Universal coil 15 is connect with transistor 19 in dc source VA and GND (Ground：Ground) between be connected in series.By by
Control unit 42 docks universal coil 15 and is powered to the output of transistor 19 connection signal.Disconnection is with coil 16 with transistor 20 straight
It is connected in series between stream power supply VA and GND.Connection signal is exported to transistor 20 come to disconnection coil by from control unit 42
16 are powered.
Power cut-out switch 17 is switched on manually.Power cut-out switch 17 includes being cut off to the input power of control unit 42 orders
Auto-reset type by compressing switch.
Major part action to control block diagram is illustrated.
(when normal operation starts)
When ON switch 11 is switched on power by user, electrical path 40a is closed, from source power supply 40 via control
Power circuit processed 48 is powered to control unit 42.When control unit 42 starts, power supply relay drive circuit 21 is by coming from
The pulse signal of control unit 42 and driven.Thus, power supply relay 13 is connected electrical path 40a closures.
When electrical path 40a is closed by power supply relay 13, exported from control unit 42 to transistor 19 and connect letter
Number.And then the universal coil 15 that connects to latching relay 14 is powered, and thereby turns on latching relay 14.
When running well, power supply relay 13 and latching relay 14 are in on-state.Flow through electrical path 40a
The path of electric current have two, that is, the path for flowing through power supply relay 13 and the path for flowing through latching relay 14.Self-locking relay
Device 14 is connected in series with resistance 12, compared with the path of power supply relay 13 is flowed through, flows through the resistance in the path of latching relay 14
Anti- height, thus electrical path 40a electric current major part flowed via power supply relay 13.
When washing running program is set by being input into configuration part 50 by user, according to set content, by controlling
Portion 42 proceeds by washing operating.When washing operating is started, operation conditions, operating content are stored in pre-determined timing
To in nonvolatile memory 54.
(during power failure)
When having a power failure, do not powered to source power supply 40, to the power failure of controlling power circuit 48.When to control power supply electricity
During the power failure on road 48, the output voltage of controlling power circuit 48 declines.As a result, the service voltage supplied to control unit 42
Decline.When the service voltage from controlling power circuit 48 is for below the resetting voltage of control unit 42, control unit 42 turns into multiple
Position state, the function stop of control unit 42.Therefore, driven from control unit 42 to the power supply relay for driving power supply relay 13
The pulse signal that dynamic circuit 21 sends is interrupted, and power supply relay 13 disconnects.
Here, as long as disconnection coil 16 is not energized, latching relay 14 is just always maintained at closure state.Therefore, exist
Latching relay 14 is in an ON state in power failure.
(when recovering electric power)
When electric power is recovered, powered to source power supply 40, and via latching relay 14 and resistance 12 to control power supply electricity
Road 48 powers.When by the power supply of controlling power circuit 48, control unit 42 starts, power supply relay drive circuit 21 passes through
Pulse signal from control unit 42 and driven so that power supply relay 13 is connected.Thus, by electrical path 40a closures.When
When electrical path 40a is closed after recovering electric power, control unit 42 is based on being stored in the content of nonvolatile memory 54 come weight
It is new to start washing operating.
In service restoration, carried out to controlling power circuit 48 via latching relay 14 and resistance 12 from source power supply 40
Power supply.Therefore, it is possible to suppress the wave from source power supply 40 to electrical path 40a, 40b flowing between controlling power circuit 48
Gush electric current.Thus, it is possible to improve the reliability of controlling power circuit 48.
(run well and terminate or pressed by user the situation of power cut-out switch)
In the case where terminating with working well or by user pressing power cut-out switch 17, control unit 42 makes power supply
Relay drive circuit 21, motor drive circuit 234, draining pump drive circuit 321 and water supply valve-driving circuit 311 stop
Only, and the storage content of nonvolatile memory 54 is removed.
Exported from control unit 42 to transistor 20 and connect signal, to be led to coil 16 to the disconnection of latching relay 14
Electricity.Thereby turn off latching relay 14.
After the disconnection of latching relay 14, the pulse signal sent from control unit 42 to power supply relay drive circuit 21
Stop, thus power supply relay 13 disconnects.Thus, electrical path 40a between source power supply 40 and controlling power circuit 48 breaks
Open.Thus, washing machine turns into power-off state.
As described above, the electric equipment of present embodiment possesses control unit 42 and auto-reset type power on switch 11,
Wherein, the control unit 42 performs the operating of electric equipment, is powered to the control unit 42 via control power supply unit 48 from source power supply 40.
It is also equipped with：Resistance 12, it is connected in series with power on switch；And power supply relay 13, its with power on switch 11 and
Resistance 12 is connected in parallel, and switchs 11 operation by power on and connects.Latching relay 14 is also equipped with, the latching relay
14 are connected in parallel and connection in series with a resistor with power on switch 11.In service restoration, from source power supply 40 via self-locking
Relay 14 and resistance 12 are powered to control power supply unit 48.Suppress the surge of traffic organising power supply unit 48 by the structure
Electric current.
As described above, in the present embodiment, when being powered to source power supply 40 when in service restoration, from source power supply
40 are powered via latching relay 14 and resistance 12 to controlling power circuit 48.Because latching relay 14 is connected in series with
Resistance 12, therefore, it is possible to suppress to flow to the surge current of electrical path 40a, 40b.Thereby, it is possible to reduce electrical path 40a, 40b
On electronic unit pressure.As a result, washing machine that a kind of reliability for making controlling power circuit 48 is improved etc. can be provided
Electric equipment.
(implementation method 2)
Below, embodiments of the present invention 2 are illustrated using Fig. 3 and Fig. 4.Additionally, pair with the identical knot of implementation method 1
The additional same tag of part of structure is simultaneously omitted the description.The phase of washing machine 100 of the washing machine 500 of present embodiment and implementation method 1
Compare, the structure of control device 420 is different.
Fig. 3 is the control block diagram of the electric equipment of embodiments of the present invention 2.Fig. 4 is the control block diagram for representing the electric equipment
A part detailed content circuit diagram.
Control unit 87 is including microcomputer etc..Control unit 87 is transfused to the defeated of level sensing unit 90, temperature sensing portion 63 etc.
Go out, the level sensing unit 90 is used to sense the water level in tank 220.Control unit 87 is based on by using person in input configuration part 83
On the content that is input into and is set, to show setting content in display part 84.Control unit 87 is via load driving part 86
The action of control motor 231, heater 56, feed water valve 310 and pump 74 etc., so that what is controlled to wash, rinse, be dehydrated each moves
Make.Here, load driving part 86 includes bidirectional thyristor, relay etc..Heater 56 is heated to the water in tank 220.
Feed water valve 310 supplies water in tank 220.Pump 74 discharges the water in tank 220.In addition, by being input into configuration part 83 and display part
84 constitute operation display part 85.
Nonvolatile memory 91 is the external storage portion including EEPROM etc..Nonvolatile memory 91 is according to coming from
The write signal of control unit 87 washs the operation conditions for operating, operating content to write and store.In addition it is also possible to be control unit
87 possess nonvolatile memory 91.
Power circuit 47 be by with conversion electric power etc. from source power supply 88 changed obtained from D/C power.Power supply electricity
Road 47 to control unit 87, respectively load supply of electrical energy.49 energizations are switched by power on and is started from source power supply 88 to power supply
Circuit 47 is powered, and after the startup of control unit 87, turns on to realize the electricity from source power supply 88 to power supply by latching relay 41
The power supply on road 47.Latching relay 41 is arranged in parallel with power on switch 49.
Latching relay 41 is the relay with the function that can mechanically keep open and-shut mode.Latching relay 41 is matched somebody with somebody
Put between source power supply 88 and power circuit 47.Latching relay 41 includes connecing universal coil for be changed into conducting state
The 42a and disconnection coil 42b for being changed into nonconducting state.On latching relay 41, by logical to universal coil 42a is met
Electricity and the closure of latching relay 41 is accordingly changed into conducting state, even if cutting off afterwards to the energization for meeting universal coil 42a, self-locking after
Electrical equipment 41 is also mechanically tended to remain on.On the contrary, in the case where making latching relay 41 be changed into nonconducting state, Xiang Duan
Open and be powered with coil 42b.Thus hold mode is released, latching relay 41 is changed into nonconducting state.
Latching relay drive circuit 46 includes that relay connects circuit 43a and relay disconnecting circuit 43b.Relay connects
Circuit passband 43a provides the voltage of power circuit 47 to universal coil 42a is met.Relay disconnecting circuit 43b is to disconnection coil 42b
The voltage of power circuit 47 is provided.
Meet universal coil 42a to be connected with relay connection circuit 43a, disconnect with coil 42b and relay disconnecting circuit 43b
Connection.In the case where electric equipment is operated, control unit 87 makes relay connect circuit 43a to be acted come to connecing universal coil
42a is powered, and latching relay 41 is changed into conducting state.In the case where the operating of electric equipment is terminated, control unit 87 makes
Relay disconnecting circuit 43b is acted to be powered to disconnection coil 42b, latching relay 41 is changed into non-conduction shape
State.
Output port P1 is to be programmed in the normal movements of control unit 87 port of output pulse signal all the time.
As shown in figure 4, sensing circuit out of control 92 includes elements below：Resistance R1, R2, R3, R4, R5, R6；Electric capacity C1, C2；
Diode D1, D2；And transistor Q1, Q2.Sensing circuit out of control 92 will come from the output signal of output port P1 as defeated
Enter signal.The output signal of sensing circuit out of control 92 is output to comparison circuit described later 93.
To the alternating voltage at the input source power supply 88 of zero cross detection circuit 44 two ends.Alternating voltage by zero crossing pole
Property change timing, zero cross detection circuit 44 export from " H " signal switch to " L " signal or from " L " signal switch to " H " believe
Number square-wave signal, be used as zero cross signal.Zero cross detection circuit 44 is to control unit 87 and the output letter of pulse conversion circuit 94
Number.
As shown in figure 4, pulse conversion circuit 94 includes elements below：Diode D11；Resistance R11, R12, R13, R14；Electricity
Hold C11；And transistor Q11.The output signal of pulse conversion circuit 94 is output to comparison circuit 93.
As shown in figure 4, comparison circuit 93 includes elements below：Resistance R21, R22, R23；Diode D21, D22；And it is brilliant
Body pipe Q21, Q22.Comparison circuit 93 is patrolled based on the signal from sensing circuit out of control 92 and pulse conversion circuit 94
The circuit collected or process.
Output signal from sensing circuit out of control 92 is imported into diode D22, comes from pulse conversion circuit 94
Output signal is imported into diode D21.The signal of both sides is output to transistor Q21 via resistance R21.From sensing out of control
The output signal of circuit 92 and the output signal from pulse conversion circuit 94 are separated by diode D21, D22, therefore a side
Signal will not be impacted to the signal of the opposing party.Specifically, as the truth table of (table 1), only from sensing out of control
In the case that the output signal of circuit 92 and the output signal both sides from pulse conversion circuit 94 output " L ", comparison circuit
93 output signal is " L ".In the output signal from sensing circuit out of control 92 and the output from pulse conversion circuit 94
Either one or both in signal is in the case of " H ", the output signal of comparison circuit 93 is " H ".
(table 1)
The output of comparison circuit 93 is connected with relay disconnecting circuit 43b.In the present embodiment, from comparison circuit 93
In the case of outputing " L ", relay disconnecting circuit 43b is driven.
Below, the action of the electric equipment using Fig. 3, (table 1) to constituting as described above, effect is illustrated.
First, the state for normally being acted to supplying alternating voltage and control unit 87 from source power supply 88 to electric equipment is carried out
Explanation.
Due to having supplied the alternating voltage from source power supply 88 to electric equipment, therefore from the letter of zero cross detection circuit 44
Number for repeat " H " and " L " pulse signal.During " H ", electric capacity C11 is charged with the path of D11-R11, and pass through
The base current of transistor Q11 is supplied by resistance R12.During " L ", with the electric charge accumulated in electric capacity C11 to transistor Q11
Supply base current.
Thus, during to the alternating voltage of electric equipment supply source power supply 88, transistor Q11 is driven, in crystal
The output signal of the pulse conversion circuit 94 presented at the colelctor electrode of pipe Q11 is " L ".
In the case where control unit 87 is normally acted, from output port P1 output pulse signals all the time.In output port
During P1 outputs " H ", electric capacity C2 is charged with the path of R1-C1-D2, and supply the base current of transistor Q1.
On the other hand, during output port P1 outputs " L ", the base stage electricity of transistor Q1 is supplied with the electric charge accumulated in electric capacity C2
Stream, and the electric charge of electric capacity C1 is discharged with the path of the internal transistor D1 of R1- output ports P1.
Output port P1 output pulse signals as described, in the state of output " H " and " L " is repeated, transistor Q1
Driven.As a result, transistor Q2 is also driven, therefore the sensing circuit out of control 92 presented at the colelctor electrode of transistor Q2
Output signal is " H ".
In this case, the truth table based on (table 1), the output signal of comparison circuit 93 is " H ", therefore relay disconnects
Circuit 43b is not acted (normal condition of (table 1)).
Then, to supplying the alternating voltage from source power supply 88 and control unit 87 because the factors such as interference are lost to electric equipment
Action in the state of control is illustrated.
Due to having supplied the alternating voltage from source power supply 88 to electric equipment, therefore the output of pulse conversion circuit 94 is believed
It is number as described " L ".
On the other hand, on sensing circuit out of control 92, control unit 87 is out of control due to factors such as interference, therefore output port
The signal of P1 is not the pulse signal of standard, and is latched as " L " or " H ".In this case, in sensing circuit out of control 92 not
The discharge and recharge of electric capacity C1 is carried out, is prevented to flow to the charging current of electric capacity C2 by electric capacity C1 and is flowed to the base stage electricity of transistor Q1
Stream.Thus, transistor Q1 cut-offs, transistor Q2 is also switched off, therefore the sensing out of control electricity presented at the colelctor electrode of transistor Q2
The output signal on road 92 is " L ".
In this case, the truth table based on (table 1), the output signal of comparison circuit 93 is " L ".Therefore, relay breaks
Open circuit 43b is acted, the action (runaway condition of table 1) in hardware disconnecting latching relay 41.
Finally, carried out without the action in the state of the alternating voltage to electric equipment supply source power supply to there occurs power failure
Explanation.
Due to not supplying the alternating voltage from source power supply 88 to electric equipment, therefore from the letter of zero cross detection circuit 44
Number it is fixed as " L ".As a result, not supplying base current to transistor Q11.Therefore, transistor Q11 disconnects, in transistor Q11
Colelctor electrode at the output signal of pulse conversion circuit 94 that manifests be " H ".
On the other hand, the action of sensing circuit out of control 92 is as follows.The voltage of power circuit 47 is abundant after power failure
Ground residual, from the output port P1 output pulse signals of control unit 87.Therefore, the output signal of sensing circuit out of control 92 is as described
It is like that " H ".But, because the warp under power down mode over time does not carry out power supply to power circuit 47, therefore
The output voltage of power circuit 47 constantly declines.Below the resetting voltage of control unit 87 is reached in the output voltage of power circuit 47
Moment, control unit 87 resets.As a result, output port P1 turns into the state (" L " is exported) for exporting, sensing out of control nothing
The output signal of circuit 92 is as described above " L ".
So, when having a power failure, the output signal of sensing circuit out of control 92 exported according to the difference of timing " H " and
Some in " L ".
However, because the side of pulse conversion circuit 94 is fixed as " H ", therefore the truth table based on (table 1), comparison circuit 93
Output signal must be " H ".That is, no matter which in " H ", " L " be the output signal of sensing circuit 92 out of control be, as long as stop
Electricity condition, relay disconnecting circuit 43b is not with regard to being acted (power down mode of (table 1)).
As described above, the electric equipment of present embodiment possesses：Control unit 87, its operating state for including controlling electric equipment
Microcomputer；And power supply unit 47, it is to the supply line voltage of control unit 87.It is also equipped with：Nonvolatile memory 91, it is deposited
Storage operational situation；And latching relay 41, it is arranged between source power supply 88 and power supply unit 47.It is also equipped with：Self-locking relay
Device drive division 46, it sends the signal being switched on or switched off to latching relay 41；And detecting part 92 out of control, its micro- calculating of sensing
Machine it is out of control.It is also equipped with：Zero passage detection portion 44, input that it is based on source power supply 88 generates reference pulse；And comparing section
93, its signal for receiving detecting part 92 out of control and zero passage detection portion 44 simultaneously sends ring off signal to latching relay drive division 46.
When control unit 87 is out of control, latching relay 41 is disconnected based on the ring off signal from comparing section 93.By the structure, can
The energization to electric equipment is cut off when control unit 87 is out of control.
As described above, in the present embodiment, comparison circuit 93 will be based on the alternating voltage institute from source power supply 88
The signal from zero cross detection circuit 44 of generation with whether there is based on control unit 87 sensing circuit out of control 92 out of control signal this
Two signals are combined to be judged.Therefore, it is possible to by the situation out of control of control unit 87 and control unit 87 is answered due to power failure
The situation of position is distinguished being controlled.Thus, even if electric power can recovered from after power failure using guard relay 41
When the electric equipment that automatically operates again in, it is also possible to the energization to electric equipment is cut off when control unit 87 is out of control.Thereby, it is possible to
There is provided security excellent electric equipment.
Additionally, the control block diagram of Fig. 3 of present embodiment can in combination make with the control block diagram of Fig. 2 of implementation method 1
With.I.e., it is also possible to the function and Fig. 3 of implementation method 2 of the control block diagram of the Fig. 2 with implementation method 1 in an electric equipment
Control block diagram function.
(implementation method 3)
Below, embodiments of the present invention 3 are illustrated using Fig. 5.Additionally, pair with the mutually isostructural part of implementation method 2
Additional same tag is simultaneously omitted the description.
Fig. 5 is the control block diagram of the electric equipment of embodiments of the present invention 3.
In Figure 5, signal cut circuit 45 is connected to be connected with comparison circuit 93 with relay connection circuit 43a.Connect letter
Number cut-out circuit 45 is only acted in the case where comparison circuit 93 exports " L ", and the action for making relay connect circuit 43a stops
Only.
Structure in addition to said structure is identical with implementation method 2.
Below, the action of the electric equipment to constituting as described above, effect is illustrated.
To supplying the alternating voltage from source power supply 88 and control unit 87 because the factors such as interference are out of control to electric equipment
Action under state is illustrated.
As noted previously, as the output signal of pulse conversion circuit 94 is " L ", the output signal of sensing circuit out of control 92
It is " L ", therefore the output signal of comparison circuit 93 is " L ".
Because the output signal of comparison circuit 93 is " L ", therefore relay disconnecting circuit 43b acted, and is carried out with hard
Part mode makes the action that latching relay 41 disconnects.Meanwhile, connect signal cut circuit 45 and acted, relay is connected electricity
The action of road 43a stops.
In general, in the case of connection signal and cut-off signal being have input at the same time, latching relay 41 turns into will not
The construction for normally acting.Assuming that being controlled being connected from control unit 87 to relay in the state of circuit 43a outputs actuating signal
The situation out of control of portion processed 87, sense it is out of control after, the output signal from comparison circuit 93 is changed into " L ", make relay break
Open circuit 43b is acted.But then, relay connection circuit 43a enters also according to the actuating signal from control unit 87
Action is made, therefore latching relay 41 is possible to not turn off.
Therefore, the output signal from comparison circuit 93 be " L " in the case of (when control unit 87 is out of control) carry out it is following
Action：Acted relay disconnecting circuit 43b, so that latching relay 41 disconnects.At the same time, cut connection signal
Deenergizing 45 is acted so that the action that relay connects circuit 43a stops, no matter thus whether control unit 87 is out of control
Pattern, the action for all forcibly making relay connect circuit 43a stops.Thus, it is possible to reliably disconnect latching relay 41.
As described above, the electric equipment of present embodiment is also equipped with connecting signal cut portion 45, the connection signal cut portion
45 cut off the connection signal sent to latching relay drive division 18.When control unit 87 is out of control, based on from comparing section 93
Ring off signal disconnects latching relay 41, and connects signal cut portion 45 and acted.By the structure, no matter control unit
Whether 87 be runaway mode, can reliably disconnect latching relay 41.
Additionally, in implementation method 1,2 and 3, be illustrated using the logic or circuit that are made up of discrete component, but
Even if can also obtain identical effect using integrated circuit, this is self-evident.
Industrial applicability
As described above, countermeasure when electric equipment involved in the present invention can take power failure and during service restoration, and
The surge current of controlling power circuit when can suppress service restoration.Reliability thereby, it is possible to make electric equipment is improved, therefore
It is useful as electric equipments such as washing machines.
Description of reference numerals
10：Switching device；11、49：Power on is switched；12：Resistance；13：Power supply relay；14、41：Self-locking relay
Device；15：Connect universal coil；16：Disconnection coil；17：Power cut-out switch；18：Latching relay drive circuit；19、20：It is brilliant
Body pipe；21：Power supply relay drive circuit；40、88：Source power supply；40a、40b：Electrical path；42、87：Control unit；42a：
Connect universal coil；42b：Disconnection coil；43a：Relay connects circuit；43b：Relay disconnecting circuit；44：Zero passage detection electricity
Road；45：Connect signal cut circuit；46：Latching relay drive circuit；47：Power circuit；48：Controlling power circuit；50：
Input configuration part；51：Display part；52：Lid opening and closing sensor；53：Level sensing unit；54、91：Nonvolatile memory；56：Plus
Hot device；63：Temperature sensing portion；74：Pump；83：Input configuration part；84：Display part；85：Operation display part；86：Load driving part；
90：Level sensing unit；92：Sensing circuit out of control；93：Comparison circuit；94：Pulse conversion circuit；100、500：Washing machine；110：
Housing；111：Antetheca；112：Rear wall；113：Housing top wall；114：Shell bottom wall；120：Door body；130：Seal；140：Supply water
Mouthful；141：Dispenser；200：Accepting groove；210：Rotating cylinder；211：Perisporium；212：Bottom wall；220：Tank；221：Bottom；
222：It is anterior；230：Rotating shaft；231：Motor；232：Belt pulley；233：Belt；234：Motor drive circuit；235：Rotation
Sensor circuit；310：Feed water valve；311：Water supply valve-driving circuit；320：Draining pump；321：Draining pump drive circuit；400：Behaviour
Make panel；410、420：Control device.
Claims (2)
1. a kind of electric equipment, possesses：
Control unit, its microcomputer for including the operating state for controlling electric equipment；
Power supply unit, it is to the control unit supply line voltage；
Nonvolatile memory, its storage operational situation；
Latching relay, it is arranged between source power supply and the power supply unit；
Latching relay drive division, it sends to the latching relay and connects signal or cut-off signal；
Detecting part out of control, it senses the out of control of the microcomputer；
Zero passage detection portion, input that it is based on the source power supply generates reference pulse；And
Comparing section, its signal for receiving the detecting part out of control and the zero passage detection portion and to the latching relay drive division
Send ring off signal,
Wherein, when the control unit is out of control, the latching relay is disconnected based on the ring off signal from the comparing section.
2. electric equipment according to claim 1, it is characterised in that
It is also equipped with connecting signal cut portion, the connection signal cut portion cuts off and believes to the connection of the latching relay drive division
Number,
When the control unit is out of control, the latching relay is disconnected based on the ring off signal from the comparing section, and
The connection signal cut portion is acted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248388.0A CN107245837B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013153449A JP2015023897A (en) | 2013-07-24 | 2013-07-24 | Electrical apparatus |
| JP2013-153449 | 2013-07-24 | ||
| JP2013153448A JP2015026104A (en) | 2013-07-24 | 2013-07-24 | Electrical apparatus |
| JP2013-153448 | 2013-07-24 | ||
| PCT/JP2014/002582 WO2015011863A1 (en) | 2013-07-24 | 2014-05-16 | Electrical appliance |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248388.0A Division CN107245837B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105229539A CN105229539A (en) | 2016-01-06 |
| CN105229539B true CN105229539B (en) | 2017-05-31 |
Family
ID=52392932
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248388.0A Expired - Fee Related CN107245837B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
| CN201480028991.2A Expired - Fee Related CN105229539B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248388.0A Expired - Fee Related CN107245837B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN107245837B (en) |
| WO (1) | WO2015011863A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105917633A (en) * | 2016-03-25 | 2016-08-31 | 程强 | Kitchenware intelligent control method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87208790U (en) * | 1987-06-07 | 1988-09-21 | 国营万众机器厂 | Electric computer controller for fully-automatic washer |
| GB2212679B (en) * | 1987-11-16 | 1992-01-15 | Lai Chin Fay | Over current circuit breaker |
| CN1227296A (en) * | 1998-02-26 | 1999-09-01 | 松下电器产业株式会社 | Power switch device and controller for washing machine |
| JP2000062931A (en) * | 1998-08-20 | 2000-02-29 | Ntn Corp | Vibration type article feeding device |
| JP2008170657A (en) * | 2007-01-11 | 2008-07-24 | Kyocera Mita Corp | Fixing controller and image forming apparatus |
| CN102570434A (en) * | 2010-10-29 | 2012-07-11 | 三菱电机株式会社 | Power converter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100092766A (en) * | 2009-02-13 | 2010-08-23 | 엘지전자 주식회사 | Apparatus for protecting a washing machine from an overcurrent |
| KR101542497B1 (en) * | 2009-02-19 | 2015-08-06 | 엘지전자 주식회사 | Apparatus and method for cutting off overvoltage of dryer |
| JP2011072730A (en) * | 2009-10-01 | 2011-04-14 | Hitachi Appliances Inc | Electric washing machine |
| JP5784431B2 (en) * | 2011-09-13 | 2015-09-24 | 株式会社東芝 | Load driving device and washing machine |
-
2014
- 2014-05-16 CN CN201710248388.0A patent/CN107245837B/en not_active Expired - Fee Related
- 2014-05-16 WO PCT/JP2014/002582 patent/WO2015011863A1/en active Application Filing
- 2014-05-16 CN CN201480028991.2A patent/CN105229539B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87208790U (en) * | 1987-06-07 | 1988-09-21 | 国营万众机器厂 | Electric computer controller for fully-automatic washer |
| GB2212679B (en) * | 1987-11-16 | 1992-01-15 | Lai Chin Fay | Over current circuit breaker |
| CN1227296A (en) * | 1998-02-26 | 1999-09-01 | 松下电器产业株式会社 | Power switch device and controller for washing machine |
| JP2000062931A (en) * | 1998-08-20 | 2000-02-29 | Ntn Corp | Vibration type article feeding device |
| JP2008170657A (en) * | 2007-01-11 | 2008-07-24 | Kyocera Mita Corp | Fixing controller and image forming apparatus |
| CN102570434A (en) * | 2010-10-29 | 2012-07-11 | 三菱电机株式会社 | Power converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107245837B (en) | 2019-01-08 |
| CN107245837A (en) | 2017-10-13 |
| CN105229539A (en) | 2016-01-06 |
| WO2015011863A1 (en) | 2015-01-29 |
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