CN107245837B - Electric equipment - Google Patents
Electric equipment Download PDFInfo
- Publication number
- CN107245837B CN107245837B CN201710248388.0A CN201710248388A CN107245837B CN 107245837 B CN107245837 B CN 107245837B CN 201710248388 A CN201710248388 A CN 201710248388A CN 107245837 B CN107245837 B CN 107245837B
- Authority
- CN
- China
- Prior art keywords
- power supply
- relay
- control unit
- control
- circuit
- 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.)
- Active
Links
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
Abstract
A kind of electric equipment, have control unit (42) and connects switch (11) with auto-reset type power supply, wherein, the control unit (42) executes washing operating, powers from source power supply (40) via control power supply unit (48) to the control unit (42).Be also equipped with: resistance (12) is connected switch (11) with power supply and is connected in series；And power supply relay (13), switch (11) is connected with power supply and resistance (12) is connected in parallel, and is connected by the operation that power supply connects switch (11).It is also equipped with and connects switch (11) with power supply and be connected in parallel and the latching relay of connection in series with a resistor (14).In service restoration, power from source power supply (40) via latching relay (14) and resistance (12) to control power supply unit (48).
Description
The application be the applying date be on May 16th, 2014, application No. is 201480028991.2, it is entitled that " electricity is set
It is standby " Chinese invention patent application divisional application.
Technical field
The starting characteristic of control device when 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 technique
In the previous washing machine of countermeasure when taking power failure and restoring electric power, exist a kind of in source power supply and control
The washing machine of switching device is provided in electrical path between power circuit processed.Switching device is operated by user
And be closed electrical path, and be kept closed after closure, until user makes disconnection instruction.Moreover,
Normally terminated based on washing operating or by dump instruction generating unit produce dump instruction and by electrical path
It disconnects (referring for example to patent document 1).
However, being had the following problems in previous washing machine: can all have whenever service restoration big surge current to
Electrical path applies pressure to the electronic component on electrical path.
Patent document 1: Japanese Unexamined Patent Publication 2010-75351 bulletin
Summary of the invention
For solving conventional problems, providing one kind can inhibit to flow to the wave of electrical path in service restoration the present invention
Electric current is gushed to improve the electric equipment of the reliability of controlling power circuit.
Electric equipment of the invention has control unit and connects switch with auto-reset type power supply, wherein the control unit executes electricity
The operating of equipment is powered from source power supply via control power supply unit to the control unit.Be also equipped with: resistance is turned on power supply
It closes and is connected in series；Power supply relay connects switch with power supply and resistor coupled in parallel is connect, the operation of switch is connected by power supply
It connects；And latching relay, switch is connected with power supply and is connected 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 this structure, the surge current from source power supply traffic organising power supply unit can be inhibited in service restoration, because
This can be such that the reliability for controlling power supply unit improves.
The starting characteristic of electric equipment according to the present invention, control device when can improve service restoration is reliable to improve
Property.
Detailed description of the invention
Fig. 1 is the sectional view 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 for indicating the detailed content of a part of the control block diagram of electric equipment of 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
In the following, embodimentsing of the present invention will be described while referring to attached drawing.In addition, being not to utilize these realities
Mode is applied to limit the present invention.
In addition, the "upper" used in the following description, "lower", "left", "right" etc. indicate that the term in direction is intended merely to
Make to illustrate clear, is not to carry out any restriction to electric equipment of the invention.
(embodiment 1)
As electric equipment, it is 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.In addition, electric equipment is not only washing machine 100, such as be also possible to drying machine, dish cleaning machine etc..
In Fig. 1, washing machine 100 has shell 110 and accommodates the container 200 of clothing in shell 110.Container
200 have rotating cylinder 210 and accommodate the sink 220 of rotating cylinder 210, wherein the rotating cylinder 210, which has, surrounds rotary shaft
The peripheral wall 211 of the substantially cylindrical shape of RX.
Shell 110 has antetheca 111 and rear wall 112, wherein the antetheca 111 is formed with for putting into clothing to container 200
The input port of object, the rear wall 112 are located at the opposite side of antetheca 111.Rotating cylinder 210 and sink 220 are open towards antetheca 111.
Washing machine 100 is also equipped with the door body 120 for being installed on antetheca 111.Door body 120 is in the investment that will be formed in antetheca 111
It mouthful closed closed position and will be rotated between the open position that input port is opened.User can make door body 120 turn to beat
Open position puts into clothing to container 200 by the input port of antetheca 111.Later, user can be such that door body 120 is moved to
Closed position, and washing machine 100 is made to wash clothing.In addition, 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 container 200 moves in rotating cylinder 210 along with the rotation of rotating cylinder 210, to be washed, be floated
The various processing washed and/or be dehydrated etc.
Rotating cylinder 210 has the bottom wall 212 opposite with door body in the closed position 120.Sink 220 has bottom
221 and front 222, wherein the bottom 221 surrounds the bottom wall 212 of rotating cylinder 210 and a part of peripheral wall 211, the front
222 surround the other parts of the peripheral wall 211 of rotating cylinder 210 between bottom 221 and door body 120.
Container 200 has the shaft 230 for the bottom wall 212 for being installed on rotating cylinder 210.Shaft 230 is along rotary shaft RX
Extend to rear wall 112.Shaft 230 runs through the bottom 221 of sink 220 and extends between sink 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 sink 220
Lower section.Belt pulley 232 is installed on the shaft 230 exposed outside screw clamp 220.The power of motor 231 is transmitted to by belt 233
Belt pulley 232.When motor 231 works, the power of motor 231 is passed to belt 233, belt pulley 232 and shaft
230.As a result, rotating cylinder 210 is rotated in sink 220.
Washing machine 100 is also equipped with sealing element 130, the sealing element 130 be disposed in sink 220 front 222 and door body 120 it
Between.Turn to 120 compressive seal 130 of door body of closed position.As a result, sealing element 130 door body 120 and front 222 it
Between formed water-stop construction.
Shell 110 has the shell bottom wall 114 of housing top wall 113 and the opposite side positioned at housing top wall 113, wherein should
Housing top wall 113 substantially horizontally extends between antetheca 111 and rear wall 112.Washing machine 100, which is also equipped with, is connected to tap
The feed water inlet 140 of (not shown) and for distribute via feed water inlet 140 import water dispenser 141.Feed water inlet 140 is disposed in
Rear wall 112.Dispenser 140 is disposed between housing top wall 113 and container 200.As a part of dispenser 140, have
Feed water valve 310.
Washing machine 100 is also equipped with the detergent receiving portion (not shown) of receiving detergent.Dispenser 141 has for receipts
Tank 200 and detergent receiving portion selectively supply multiple feed water valves of water.It is supplied in addition, being additionally provided with to detergent receiving portion
The water supply path (not shown) of water.It, can be preferably using known for the water supply to container 200 and detergent receiving portion
Technology used in washing machine.
Washing machine 100 is also equipped with operation panel 400.The operation panel 400 is for example set to antetheca 111.In the operating surface
It is provided with power supply on plate 400 and connects switch 11, power cut-out switch 17, input configuration part 50 and display unit 51.Power supply is connected
Switch 11 and power cut-out switch 17 include auto-reset type push switch.In the setting of the display input of display unit 51 configuration part 50
Appearance, action 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 of 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 unit 51, lid
It is opened and closed sensor 52, rotation sensor circuit 235, level sensing unit 53 and nonvolatile memory 54.Rotation sensor electricity
The revolving speed of 235 motor sensor 231 of road.Level sensing unit 53 senses the variation in sink 220.
Also, control unit 42 controls power supply relay driving circuit 21, motor drive circuit 234, draining pump driving electricity
The movement of road 321, water supply valve-driving circuit 311 etc., to control each movement of washing, rinsing, dehydration.Power supply relay driving electricity
21 driving power relay 13 of road.234 drive motor 231 of motor drive circuit.The driving draining of draining pump driving circuit 321
Pump 320.Water supply valve-driving circuit 311 drives the feed water valve 310 to supply water into sink 220.
Nonvolatile memory 54 be include EEPROM (Electrically Erasable Programmable Read-
Only Memory: Electrically Erasable Programmable Read-Only Memory) etc. external storage portion.Nonvolatile memory 54 is according to carrying out automatic control
The write-in signal in portion 42 processed come be written and store washing operating operation conditions, operating content.In addition it is also possible to be control unit 42
Has nonvolatile memory 54.
Controlling power circuit 48 is the DC power supply (direct as obtained from converting source power supply 40 with conversion electric power etc.
Current: DC power supply).Controlling power circuit 48 to control unit 42, DC power supply VA, respectively load supply of electrical energy.
The function as washing operating control unit of control unit 42 are as follows: by execute pre-stored operation control routine come
Motor 231, draining pump 320, feed water valve 310 are controlled, to gradually execute the series of processes of washing, rinsing, dehydration.As
Washing operating program in this case, there are various programs.
One power supply terminal of source power supply 40 is connect with an input terminal of controlling power circuit 48, source power supply 40
Another power supply terminal connect via switching device 10 with another input terminal of controlling power circuit 48.The control power supply
Two output terminals of circuit 48 are connected to the power input terminal of control unit 42.As a result, switching device 10 is arranged at quotient
With the electrical path 40a between power supply 40 and controlling power circuit 48.
Switching device 10 has power supply and connects switch 11, resistance 12, power supply relay 13, latching relay 14, connects and use
Coil 15 and disconnection coil 16.
Power supply connects switch 11 and resistance 12 is connected in series in the energization between source power supply 40 and controlling power circuit 48
Path 40a.
It includes by auto-reset type that electrical path 40a is closed by manual ON by pressing off that power supply, which connects switch 11,
It closes.In order to connect when switch 11 is switched on manually or inhibit when service restoration to flow to the surge of electrical path 40a, 40b in power supply
Electric current and be connected to resistance 12.
Power supply relay driving circuit 21 is driven according to the pulse signal from control unit 42, thereby turns on power supply
Electrical path 40a is closed by relay 13, power supply relay 13.
Latching relay 14 is connected switch 11 with power supply and is connected in parallel.By docking universal coil 15 be powered by it is self-locking after
Electric appliance 14 is closed, even if also, the power-off of universal coil 15 is connect after closure, latching relay 14 is also kept closed.When
When disconnection coil 16 is energized, latching relay 14 is disconnected.Thus, as long as disconnection is not energized with coil 16, self-locking relay
Device 14 is just always maintained at closed state.
Power supply connects switch 11 and resistance 12 is connected in series, and the two is connected in parallel with power supply relay 13.Latching relay
14, which connect switch 11 with power supply, is connected in parallel.
When power failure, power supply relay 13 is in an off state, and latching relay 14 is in closed state.When in service restoration
When powering to source power supply 40, since latching relay 14 and resistance 12 are connected in series, are able to suppress and flow to circuit passband
The surge current of diameter 40a, 40b.
Latching relay driving circuit 18 carries out control system of switching on or off electricity with coil 16 by docking universal coil 15 and disconnection, comes
Control is opened and closed to latching relay 14.Latching relay driving circuit 18 has NPN transistor 19 and NPN transistor
20.At this point, NPN transistor 19 is the switch element switched on and off for making to connect universal coil 15.NPN transistor 20 is
Switch element for switching on and off disconnection coil 16.
Universal coil 15 and transistor 19 is connect to be connected in series between DC power supply VA and GND (Ground: ground).By by
Control unit 42 is exported to transistor 19 connects signal to dock the energization of universal coil 15.Disconnection is with coil 16 with transistor 20 straight
It is connected in series between galvanic electricity source VA and GND.Signal is connected by being exported by control unit 42 to transistor 20 come to disconnection coil
16 are powered.
Power cut-out switch 17 is switched on manually.Power cut-out switch 17 includes cutting off to order to 42 input power of control unit
Auto-reset type push switch.
The major part movement of control block diagram is illustrated.
(when normal operation starts)
When being powered on connection switch 11 by user and being closed electrical path 40a, from source power supply 40 via control
Power circuit 48 processed is powered to control unit 42.When control unit 42 starts, power supply relay driving circuit 21 is by coming from
The pulse signal of control unit 42 and driven.Electrical path 40a is closed by the connection of power supply relay 13 as a result,.
When being closed electrical path 40a by power supply relay 13, from control unit 42 to transistor 19, letter is connected in output
Number.And then be powered to the universal coil 15 that connects of latching relay 14, thereby turn 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, flow through the path of power supply relay 13 and flow through the path of latching relay 14.Self-locking relay
Device 14 is connected in series with resistance 12, compared with the path for flowing through power supply relay 13, flows through the resistance in the path of latching relay 14
Anti- height, therefore the electric current of electrical path 40a is most of via the flowing of power supply relay 13.
When setting washing operating program by input configuration part 50 by user, according to set content, by controlling
Portion 42 starts to carry out washing operating.When starting washing operating, operation conditions, operating content are stored in pre-determined timing
Into nonvolatile memory 54.
(when power failure)
When having a power failure, do not power to source power supply 40, to the power failure of controlling power circuit 48.When electric to control power supply
When 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 below the resetting voltage that the service voltage from controlling power circuit 48 is control unit 42, control unit 42 becomes multiple
Position state, the function stop of control unit 42.Therefore, from control unit 42 to the power supply relay drive for driving power relay 13
The pulse signal that dynamic circuit 21 is sent interrupts, and power supply relay 13 disconnects.
As long as latching relay 14 is always maintained at closed state here, disconnection is not energized with coil 16.Therefore, exist
Latching relay 14 is in an ON state in power failure.
(when restoring electric power)
It when restoring electric power, powers to source power supply 40, and electric to control power supply via latching relay 14 and resistance 12
Road 48 powers.When being started by the power supply control unit 42 of controlling power circuit 48, power supply relay driving circuit 21 passes through
Pulse signal from control unit 42 and driven, thus power supply relay 13 connect.Thus, electrical path 40a is closed.When
When electrical path 40a after restoring electric power is closed, control unit 42 is based on the content for being stored in nonvolatile memory 54 come weight
It is new to start washing operating.
In service restoration, carried out from source power supply 40 via latching relay 14 and resistance 12 to controlling power circuit 48
Power supply.Therefore, it is able to suppress the wave flowed from source power supply 40 to electrical path 40a, 40b between controlling power circuit 48
Gush electric current.Thus, it is possible to improve the reliability of controlling power circuit 48.
(the case where normal operation terminates or presses power cut-out switch by user)
In the case where working well terminating or press power cut-out switch 17 by user, control unit 42 makes power supply
Relay drive circuit 21, motor drive circuit 234, draining pump driving circuit 321 and water supply valve-driving circuit 311 stop
Only, and the storage content of nonvolatile memory 54 is removed.
From control unit 42 to transistor 20, signal is connected in output, to be led to the disconnection of latching relay 14 with coil 16
Electricity.Thereby turn off latching relay 14.
After the disconnection of latching relay 14, pulse signal from control unit 42 to power supply relay driving circuit 21 that sent from
Stop, thus power supply relay 13 disconnects.The electrical path 40a between source power supply 40 and controlling power circuit 48 is disconnected as a result,
It opens.Thus, washing machine becomes power-off state.
As described above, the electric equipment of present embodiment has control unit 42 and connects switch 11 with auto-reset type power supply,
Wherein, which executes the operating of electric equipment, powers from source power supply 40 via control power supply unit 48 to the control unit 42.
Be also equipped with: resistance 12 is connected switch with power supply and is connected in series；And power supply relay 13, with power supply connect switch 11 and
Resistance 12 is connected in parallel, and is connected by the operation that power supply connects switch 11.It is also equipped with latching relay 14, the latching relay
14, which connect switch 11 with power supply, is connected in parallel and connection in series with a resistor.In service restoration, from source power supply 40 via self-locking
Relay 14 and resistance 12 are powered to control power supply unit 48.Inhibit the surge of traffic organising power supply unit 48 with this configuration
Electric current.
As described above, in the present embodiment, when powering in service restoration to source power supply 40, from source power supply
40 are powered via latching relay 14 and resistance 12 to controlling power circuit 48.Since latching relay 14 is connected in series with
Resistance 12, therefore it is able to suppress the surge current for flowing to electrical path 40a, 40b.Thereby, it is possible to reduce electrical path 40a, 40b
On electronic component pressure.As a result, it is possible to provide a kind of washing machine etc. that the reliability for making controlling power circuit 48 improves
Electric equipment.
(embodiment 2)
In the following, being illustrated using Fig. 3 and Fig. 4 to embodiments of the present invention 2.In addition, to knot identical as embodiment 1
The component of structure adds same tag and omits the description.100 phase of washing machine of the washing machine 500 of present embodiment and embodiment 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 indicating the electric equipment
A part detailed content circuit diagram.
Control unit 87 is including microcomputer etc..Control unit 87 is entered the defeated of level sensing unit 90, temperature sensing portion 63 etc.
Out, which is used to sense the water level in sink 220.Control unit 87 is based on through user in input configuration part 83
On inputted and the content that sets, to show setting content in display unit 84.Control unit 87 is via load driving part 86
Control the movement of motor 231, heater 56, feed water valve 310 and pump 74 etc., thus control washing, rinsing, dehydration it is each dynamic
Make.Here, load driving part 86 includes bidirectional thyristor, relay etc..Heater 56 heats the water in sink 220.
Feed water valve 310 supplies water into sink 220.Water in sink 220 is discharged pump 74.In addition, by input configuration part 83 and display unit
84 constitute operation display part 85.
Nonvolatile memory 91 is the external storage portion for including EEPROM etc..Nonvolatile memory 91 according to from
The write-in signal of control unit 87 come be written and store washing operating operation conditions, operating content.In addition it is also possible to be control unit
87 have nonvolatile memory 91.
Power circuit 47 is the DC power supply as obtained from being converted with conversion electric power etc. from source power supply 88.Power supply electricity
Road 47 to control unit 87, respectively load supply of electrical energy.It connects switch 49 by power supply and is powered and start from source power supply 88 to power supply
Circuit 47 is powered, and after the starting of control unit 87, is connected by latching relay 41 electric from source power supply 88 to power supply to realize
The power supply on road 47.Latching relay 41 is connected switch 49 with power supply and is arranged in parallel.
Latching relay 41 is the relay can mechanically keep with open and-shut mode.Latching relay 41 is matched
It sets between source power supply 88 and power circuit 47.Latching relay 41 includes connecing universal coil for become on state
42a and disconnection coil 42b for becoming nonconducting state.About latching relay 41, by logical to universal coil 42a is met
Electricity and latching relay 41 closure be accordingly changed on state, even if being cut off later to the energization for meeting universal coil 42a, it is self-locking after
Electric appliance 41 also mechanically tends to remain on.On the contrary, in the case where making latching relay 41 become nonconducting state, Xiang Duan
It opens and is powered with coil 42b.Thus hold mode is released, latching relay 41 becomes nonconducting state.
Latching relay driving 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.
It meets universal coil 42a to connect with relay connection circuit 43a, disconnect with coil 42b and relay disconnecting circuit 43b
Connection.In the case where operating electric equipment, control unit 87 makes relay connect circuit 43a to be acted come to connecing universal coil
42a is powered, and latching relay 41 is thus made to become on state.In the case where terminating the operating of electric equipment, control unit 87 makes
Relay disconnecting circuit 43b is acted to be powered to disconnection coil 42b, and latching relay 41 is thus made to become non-conduction shape
State.
Output port P1 is to be programmed in 87 normal movements of control unit the port of output pulse signal always.
As shown in figure 4, sensing circuit 92 out of control includes following elements: resistance R1, R2, R3, R4, R5, R6；Capacitor C1, C2；
Diode D1, D2；And transistor Q1, Q2.Sensing circuit 92 out of control using from the output signal of output port P1 as defeated
Enter signal.The output signal of sensing circuit 92 out of control is output to aftermentioned comparison circuit 93.
The alternating voltage at 88 both ends of source power supply is inputted to zero cross detection circuit 44.Pass through zero crossing pole in alternating voltage
Property variation timing, zero cross detection circuit 44 output from " H " signal is switched to " L " signal or from " L " signal be switched to " H " letter
Number square-wave signal, as zero cross signal.Zero cross detection circuit 44 is believed to control unit 87 and the output of pulse conversion circuit 94
Number.
As shown in figure 4, pulse conversion circuit 94 includes following elements: 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 following elements: 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 92 out of control and pulse conversion circuit 94
The circuit collected or handled.
Output signal from sensing circuit 92 out of control is input into diode D22, from pulse conversion circuit 94
Output signal is input 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 output signal from pulse conversion circuit 94 are separated by diode D21, D22, therefore a side
Signal will not impact the signal of another party.Specifically, as the truth table of (table 1), only sensing out of control is being come from
In the case that the output signal of circuit 92 and output signal both sides from pulse conversion circuit 94 output " L ", comparison circuit
93 output signal is just " L ".In the output signal from sensing circuit 92 out of control and the output from pulse conversion circuit 94
Either in signal or in the case that both sides are " H ", the output signal of comparison circuit 93 is " H ".
(table 1)
The output of comparison circuit 93 is connect with relay disconnecting circuit 43b.In the present embodiment, from comparison circuit 93
In the case where outputing " L ", relay disconnecting circuit 43b is driven.
In the following, being illustrated using Fig. 3, (table 1) to movement, the effect of the electric equipment constituted as described above.
Firstly, being carried out to the state that alternating voltage and control unit 87 normally act is supplied from source power supply 88 to electric equipment
Explanation.
Due to having supplied the alternating voltage from source power supply 88 to electric equipment, the letter from zero cross detection circuit 44
Number for repeat " H " and " L " pulse signal.During " H ", charged with the path of D11-R11 to capacitor C11, and pass through
The base current of transistor Q11 is supplied by resistance R12.During " L ", with the charge accumulated in capacitor C11 to transistor Q11
Supply base current.
As a result, 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 collector of pipe Q11 is " L ".
In the case where control unit 87 normally acts, from output port P1 output pulse signal always.In output port
During P1 exports " H ", charged with the path of R1-C1-D2 to capacitor C2, and supply the base current of transistor Q1.
On the other hand, during output port P1 exports " L ", the base stage electricity of transistor Q1 is supplied with the charge accumulated in capacitor C2
It flows, and discharges the charge of capacitor C1 with the path of the internal transistor D1 of R1- output port P1.
Output port P1 output pulse signal as described, in the state of repeating to export " H " and " L ", transistor Q1
It is driven.As a result, transistor Q2 is also driven, therefore the sensing circuit out of control 92 presented at the collector of transistor Q2
Output signal is " H ".
In this case, it is based on the truth table of (table 1), the output signal of comparison circuit 93 is " H ", therefore relay disconnects
Circuit 43b is without movement (normal condition of (table 1)).
Then, opposite electric equipment supplies the alternating voltage from source power supply 88 and control unit 87 is since the factors such as interference are lost
Movement in the state of control is illustrated.
Due to having supplied the alternating voltage from source power supply 88, the output letter of pulse conversion circuit 94 to electric equipment
Number as described be " L ".
On the other hand, about sensing circuit 92 out of control, out of control, the output port due to factors such as interference of control unit 87
The signal of P1 is not the pulse signal of standard, and is latched as " L " or " H ".In this case, in sensing circuit 92 out of control not
The charge and discharge for carrying out capacitor C1 prevent the charging current for flowing to capacitor C2 and the base stage for flowing to transistor Q1 electricity by capacitor C1
Stream.Transistor Q1 ends as a result, and transistor Q2 is also switched off, therefore the sensing out of control electricity presented at the collector of transistor Q2
The output signal on road 92 is " L ".
In this case, it is based on the truth table of (table 1), the output signal of comparison circuit 93 is " L ".Therefore, relay is disconnected
Open circuit 43b is acted, the movement (runaway condition of table 1) in hardware disconnecting latching relay 41.
Finally, being carried out to being had a power failure without the movement in the state of the alternating voltage to electric equipment supply source power supply
Explanation.
Due to not supplying the alternating voltage from source power supply 88, the letter from zero cross detection circuit 44 to electric equipment
Number it is fixed as " L ".As a result, not supplying base current to transistor Q11.Therefore, transistor Q11 is disconnected, in transistor Q11
Collector at the output signal of pulse conversion circuit 94 that shows be " H ".
On the other hand, the movement of sensing circuit 92 out of control is as follows.The voltage of power circuit 47 is abundant after power failure
Ground residual, from the output port P1 output pulse signal of control unit 87.Therefore, the output signal of sensing circuit 92 out of control is such as described
It is like that " H ".But due to not carried out power supply to power circuit 47 with the time under power failure,
The output voltage of power circuit 47 constantly declines.Below the resetting voltage that the output voltage of power circuit 47 reaches control unit 87
At the time of, control unit 87 resets.As a result, output port P1 becomes the state (" L " output) exported, sensing out of control nothing
The output signal of circuit 92 is " L " as described above.
In this way, when having a power failure, the output signal of sensing circuit 92 out of control exported according to the difference of timing " H " and
Some in " L ".
However, it is based on the truth table of (table 1) since 94 side of pulse conversion circuit is fixed as " H ", comparison circuit 93
Output signal must be " H ".That is, no matter the output signal of sensing circuit out of control 92 is which of " H ", " L ", as long as stopping
Electricity condition, relay disconnecting circuit 43b is just without movement (power failure of (table 1)).
As described above, the electric equipment of present embodiment has: control unit 87 comprising controls the action state of electric equipment
Microcomputer；And power supply unit 47, to 87 supply line voltage of control unit.Be also equipped with: nonvolatile memory 91 is deposited
Store up operational situation；And latching relay 41, it is set between source power supply 88 and power supply unit 47.It is also equipped with: self-locking relay
Device driving portion 46 sends the signal being switched on or switched off to latching relay 41；And detecting part 92 out of control, sense micro- calculating
Machine it is out of control.Be also equipped with: zero passage detection portion 44 generates reference pulse based on the input of source power supply 88；And comparing section
93, it receives the signal of detecting part 92 out of control and zero passage detection portion 44 and sends ring off signal to latching relay driving portion 46.
When control unit 87 is out of control, latching relay 41 is disconnected based on the ring off signal from comparing section 93.With this configuration, 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 generated with based on control unit 87 whether there is or not the signal of sensing circuit out of control 92 out of control this
Two signals combine to be judged.Therefore, can be by the situation out of control of control unit 87 and due to power failure and control unit 87 is answered
The case where position, which is distinguished, to be controlled.Thus, even if restoring electric power after power failure being able to use guard relay 41
When the electric equipment that automatically operates again in, the energization to electric equipment can be also cut off when control unit 87 is out of control.Thereby, it is possible to
There is provided safety excellent electric equipment.
In addition, the control block diagram of Fig. 3 of present embodiment can make in combination with the control block diagram of Fig. 2 of embodiment 1
With.That is, can also have the function of Fig. 3 of the control block diagram of Fig. 2 of embodiment 1 and embodiment 2 in an electric equipment
Control block diagram function.
(embodiment 3)
In the following, illustrating embodiments of the present invention 3 using Fig. 5.In addition, to the mutually isostructural component of embodiment 2
Additional same tag simultaneously omits the description.
Fig. 5 is the control block diagram of the electric equipment of embodiments of the present invention 3.
In Fig. 5, connects signal cut circuit 45 and connect with relay connection circuit 43a and comparison circuit 93.Connect letter
Number cutting circuit 45 only comparison circuit 93 export " L " in the case where acted, make relay connect circuit 43a movement stop
Only.
Structure in addition to above structure is identical as embodiment 2.
In the following, movement, the effect to the electric equipment constituted as described above are illustrated.
Opposite electric equipment supplies the alternating voltage from source power supply 88 and control unit 87 is since the factors such as interference are out of control
Movement under state is illustrated.
As noted previously, as the output signal of pulse conversion circuit 94 is " L ", the output signal of sensing circuit 92 out of control
For " L ", therefore the output signal of comparison circuit 93 is " L ".
Since the output signal of comparison circuit 93 is " L ", relay disconnecting circuit 43b is acted, and is carried out with hard
The movement that part mode disconnects latching relay 41.Meanwhile connecting signal cut circuit 45 and being acted, so that relay is connected electricity
The movement of road 43a stops.
In general, it has input at the same time in the case where connecting signal and cut-off signal, latching relay 41 becomes will not
The construction normally acted.Assuming that being controlled in the state of connecting circuit 43a from control unit 87 to relay and outputing action signal
Portion 87 processed situation out of control, sense it is out of control after, the output signal from comparison circuit 93 becomes " L ", keeps relay disconnected
Open circuit 43b is acted.But then, relay connect circuit 43a also according to the action signal from control unit 87 into
Action is made, therefore latching relay 41 is possible to not turn off.
Therefore, it is carried out (when control unit 87 is out of control) in the case where the output signal from comparison circuit 93 is " L " following
Movement: acting relay disconnecting circuit 43b, so that latching relay 41 be made to disconnect.At the same time, connection signal is cut
Deenergizing 45 carries out movement to which the movement for making relay connect circuit 43a stops, no matter thus whether control unit 87 is out of control
Mode, the movement for all forcibly making relay connect circuit 43a stop.Thus, it is possible to reliably disconnect latching relay 41.
As described above, the electric equipment of present embodiment, which is also equipped with, connects signal cut portion 45, the connection signal cut portion
45 cut off the connection signal sent to latching relay driving portion 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.With this configuration, no matter control unit
Whether 87 be runaway mode, can reliably disconnect latching relay 41.
In addition, be illustrated in embodiment 1,2 and 3 using the logic or circuit that are made of discrete component, but
Identical effect can be obtained using integrated circuit, this is self-evident.
Industrial availability
As described above, when electric equipment according to the present invention can take power failure and countermeasure when service restoration, and
The surge current of controlling power circuit when being able to suppress service restoration.Thereby, it is possible to improve the reliability of electric equipment, therefore
It is useful as electric equipments such as washing machines.
Description of symbols
10: switching device；11,49: power supply connects switch；12: resistance；13: power supply relay；14,41: self-locking relay
Device；15: connecing universal coil；16: coil is used in disconnection；17: power cut-out switch；18: latching relay driving circuit；19,20: brilliant
Body pipe；21: power supply relay driving circuit；40,88: source power supply；40a, 40b: electrical path；42,87: control unit；42a:
Connect universal coil；42b: coil is used in disconnection；43a: relay connects circuit；43b: relay disconnecting circuit；44: zero passage detection electricity
Road；45: connecting signal cut circuit；46: latching relay driving circuit；47: power circuit；48: controlling power circuit；50:
Input configuration part；51: display unit；52: lid opening and closing sensor；53: level sensing unit；54,91: nonvolatile memory；56: adding
Hot device；63: temperature sensing portion；74: pump；83: input configuration part；84: display unit；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:
Shell；111: antetheca；112: rear wall；113: housing top wall；114: shell bottom wall；120: door body；130: sealing element；140: supplying water
Mouthful；141: dispenser；200: container；210: rotating cylinder；211: peripheral wall；212: bottom wall；220: sink；221: bottom；
222: front；230: 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 driving circuit；400: behaviour
Make panel；410,420: control device.
Claims (6)
1. a kind of electric equipment, has:
Control unit executes the operating of electric equipment, powers from source power supply via control power supply unit to the control unit；
Auto-reset type power supply connects switch；
Resistance is connected switch with the power supply and is connected in series；
Power supply relay, connects switch with the power supply and the resistor coupled in parallel is connect, and connects switch by the power supply
It operates and connects；And
Latching relay is connected switch with the power supply and is connected in parallel, and is connected in series with the resistance,
Wherein, electric to the control via the latching relay and the resistance from the source power supply in service restoration
The power supply of source portion.
2. electric equipment according to claim 1, which is characterized in that
The electric equipment further includes power supply relay driving circuit, which is receiving from the control
The power supply relay is connected when the signal in portion processed, and the power supply relay is disconnected when from the signal interruption of the control unit
Device.
3. electric equipment according to claim 2, which is characterized in that
The power supply connection switch includes will be logical between the source power supply and the control power supply unit by manual ON
The auto-reset type push switch of power path closure,
When the power supply, which connects switch, to be switched on manually, from the source power supply via the control power supply unit to the control
Portion is powered, and the control unit sends signal to the power supply relay driving circuit, thereby turns on the power supply relay.
4. electric equipment according to claim 1, which is characterized in that
The electric equipment further includes connecing universal coil and disconnection coil for be opened and closed control to the latching relay,
When it is described connect universal coil and be energized when, the latching relay is connected, and after latching relay connection
Even if the universal coil that connects is powered down, the latching relay is also remained turned on, and
When the disconnection is energized with coil, the latching relay is disconnected.
5. electric equipment according to claim 4, which is characterized in that
When the control unit is powered, the control unit be controlled such that it is described connect universal coil and be energized, thereby turn on
The latching relay, and
When work well end or the control unit receive dump order when, the control unit is controlled such that institute
It states disconnection to be energized with coil, thereby turns off the latching relay.
6. electric equipment according to any one of claim 1 to 5, which is characterized in that
When running well, the power supply relay and the latching relay are in on-state,
When having a power failure, the power supply relay is disconnected, and the latching relay remains turned on,
In service restoration, supplied from the source power supply via the latching relay and the resistance to the control power supply unit
Electricity, the control unit start and are controlled such that the power supply relay is connected, and
When work well end or the control unit receive dump order when, the control unit is controlled such that institute
It states power supply relay and the latching relay disconnects, thus the energization between the source power supply and the control power supply unit
Path disconnects.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-153449 | 2013-07-24 | ||
| JP2013-153448 | 2013-07-24 | ||
| JP2013153449A JP2015023897A (en) | 2013-07-24 | 2013-07-24 | Electrical apparatus |
| JP2013153448A JP2015026104A (en) | 2013-07-24 | 2013-07-24 | Electrical apparatus |
| CN201480028991.2A CN105229539B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480028991.2A Division CN105229539B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107245837A CN107245837A (en) | 2017-10-13 |
| CN107245837B true CN107245837B (en) | 2019-01-08 |
Family
ID=52392932
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480028991.2A Active CN105229539B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
| CN201710248388.0A Active CN107245837B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480028991.2A Active CN105229539B (en) | 2013-07-24 | 2014-05-16 | Electric equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN105229539B (en) |
| WO (1) | WO2015011863A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017161547A1 (en) * | 2016-03-25 | 2017-09-28 | 程强 | Intelligent control method and system for tableware |
Citations (7)
| 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 |
| 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 |
| JP3973770B2 (en) * | 1998-08-20 | 2007-09-12 | Ｎｔｎ株式会社 | Vibrating article supply device |
| CN101694935A (en) * | 2009-02-19 | 2010-04-14 | 南京乐金熊猫电器有限公司 | Overvoltage cutting device and method for dryer |
| CN101699681A (en) * | 2009-02-13 | 2010-04-28 | 南京乐金熊猫电器有限公司 | Overcurrent cutting device for clothing processing device |
| CN102570434A (en) * | 2010-10-29 | 2012-07-11 | 三菱电机株式会社 | Power converter |
| CN102995352A (en) * | 2011-09-13 | 2013-03-27 | 株式会社东芝 | Load driving apparatus and washing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8726783D0 (en) * | 1987-11-16 | 1987-12-23 | Chin Fay Lai | Over current circuit breaker |
| JP2008170657A (en) * | 2007-01-11 | 2008-07-24 | Kyocera Mita Corp | Fixing controller and image forming apparatus |
| JP2011072730A (en) * | 2009-10-01 | 2011-04-14 | Hitachi Appliances Inc | Electric washing machine |
-
2014
- 2014-05-16 CN CN201480028991.2A patent/CN105229539B/en active Active
- 2014-05-16 WO PCT/JP2014/002582 patent/WO2015011863A1/en active Application Filing
- 2014-05-16 CN CN201710248388.0A patent/CN107245837B/en active Active
Patent Citations (7)
| 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 |
| 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 |
| JP3973770B2 (en) * | 1998-08-20 | 2007-09-12 | Ｎｔｎ株式会社 | Vibrating article supply device |
| CN101699681A (en) * | 2009-02-13 | 2010-04-28 | 南京乐金熊猫电器有限公司 | Overcurrent cutting device for clothing processing device |
| CN101694935A (en) * | 2009-02-19 | 2010-04-14 | 南京乐金熊猫电器有限公司 | Overvoltage cutting device and method for dryer |
| CN102570434A (en) * | 2010-10-29 | 2012-07-11 | 三菱电机株式会社 | Power converter |
| CN102995352A (en) * | 2011-09-13 | 2013-03-27 | 株式会社东芝 | Load driving apparatus and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107245837A (en) | 2017-10-13 |
| CN105229539A (en) | 2016-01-06 |
| WO2015011863A1 (en) | 2015-01-29 |
| CN105229539B (en) | 2017-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2312041A1 (en) | Door Lock Control Apparatus and Method of Washing Machine | |
| EP2921097B1 (en) | Dishwasher and method of controlling the same | |
| WO2017162065A1 (en) | Electric valve and control method therefor | |
| CN101889110A (en) | Circuit arrangements for operating a household appliance | |
| EP2586898B1 (en) | Inrush current control system | |
| CN107245837B (en) | Electric equipment | |
| US8440025B2 (en) | Water-conducting domestic appliance | |
| CN102995352B (en) | Load driving apparatus and washing machine | |
| JP6311126B2 (en) | Washing machine | |
| CN113811648B (en) | Laundry machine and method for controlling such laundry machine | |
| CN205446865U (en) | Electrically operated valve | |
| JP2017077280A (en) | Clothing treatment apparatus | |
| EP0498779A1 (en) | Apparatus connectable in-series to a washing machine, particularly of domestic type | |
| JP4158666B2 (en) | Dishwasher | |
| CN207136823U (en) | The spilling water detection of dish-washing machine and process circuit | |
| CN101699681B (en) | Overcurrent cutting device for clothing processing device | |
| JP2015026104A (en) | Electrical apparatus | |
| JP2000350885A (en) | Controller for washing machine | |
| JP2015077256A (en) | Washing machine | |
| CN210341407U (en) | Washing machine control system | |
| TWI825356B (en) | washing machine | |
| JP2015023897A (en) | Electrical apparatus | |
| CN219603973U (en) | Distributor for wall-mounted washing machine and wall-mounted washing machine | |
| CN214694731U (en) | Washing machine | |
| JP2018007290A (en) | Household electric appliance, washing machine, and washing/drying machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |