CN114990842A - Door switch detection method of drum washing machine - Google Patents
Door switch detection method of drum washing machine Download PDFInfo
- Publication number
- CN114990842A CN114990842A CN202210760014.8A CN202210760014A CN114990842A CN 114990842 A CN114990842 A CN 114990842A CN 202210760014 A CN202210760014 A CN 202210760014A CN 114990842 A CN114990842 A CN 114990842A
- Authority
- CN
- China
- Prior art keywords
- door
- washing machine
- signal
- door lock
- detection 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 13
- 238000010168 coupling process Methods 0.000 claims abstract description 13
- 238000005859 coupling reaction Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 9
- 206010063385 Intellectualisation Diseases 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Images
Classifications
-
- 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
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/20—Parameters relating to constructional components, e.g. door sensors
-
- 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
- D06F34/32—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by graphical features, e.g. touchscreens
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/40—Opening or locking status of doors
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/38—Conditioning or finishing, e.g. control of perfume injection
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/44—Opening, closing or locking of doors
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/58—Indications or alarms to the control system or to the user
- D06F2105/60—Audible signals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention discloses a door switch detection method of a drum washing machine, which comprises the following steps: the washing machine is powered on, and a mains supply strong current L line enters the door lock; two door switch detection circuits are arranged on the washing machine computer board and connected to the door lock, namely a first optical coupling isolation detection circuit and a first optical coupling isolation detection circuit, and the on-off of a live wire is converted into a door lock weak current signal and a door switch weak current signal through the first optical coupling isolation detection circuit and transmitted to the main transformer integrated computer board MCU; the washing machine consists of two control panels, namely a main transformer integrated computer panel MCU and a display computer panel MCU, wherein the main transformer integrated computer panel MCU transmits detected signals to the display computer panel MCU through a serial port line function; the display computer board MCU is used for processing signals in a unified mode, the washing machine is intelligentized finally, when the washing machine is finished, the door lock can be opened automatically, when the door is not opened, the user forgets to air clothes, notification is reminded through voice broadcast and WiFi-app, and the nixie tube flashes an indicator lamp for displaying.
Description
The technical field is as follows:
the invention relates to a door switch detection method of a drum washing machine, and belongs to the technical field of household appliances.
The background art comprises the following steps:
with the continuous development of economy and technology, users have more intelligent requirements on the functions of the washing machine. The traditional drum washing machine can only detect whether the door lock is locked or not and does not have the function of detecting whether the door is opened or closed or not. After washing, the clothes are forgotten to be taken out, and the user can not receive the report information.
Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.
The invention content is as follows:
the present invention is directed to solve the above problems of the prior art and to provide a method for detecting a door switch of a drum washing machine, which adds a door switch detection to judge a door state based on a conventional drum washing machine.
The technical scheme adopted by the invention is as follows: a door switch detection method of a drum washing machine comprises the following steps:
the method comprises the following steps: the washing machine is powered on, and the strong electric L line of the commercial power enters the door lock;
step two: two door switch detection circuits are arranged on the washing machine computer board and connected to the door lock, namely a first optical coupling isolation detection circuit and a first optical coupling isolation detection circuit, and the on-off of a live wire is converted into a door lock weak current signal and a door switch weak current signal through the first optical coupling isolation detection circuit and transmitted to the main transformer integrated computer board MCU;
step three: the washing machine consists of a main transformer integrated computer board MCU and a display computer board MCU, wherein the main transformer integrated computer board MCU transmits a detected signal to the display computer board MCU through a serial port line function;
step four: the display computer board MCU processes signals in a unified mode, the intellectualization of the washing machine is finally achieved, when the washing machine is finished, the door lock is automatically opened, when the door is not opened, the fact that a user forgets to air clothes is explained, notification is reminded through voice broadcasting and WiFi-app, and a nixie tube flashes an indicator lamp to display;
step five: when the clothes are not taken out for airing for a long time, the washing machine shakes the clothes, and the air is blown to remove smell.
Furthermore, the door lock is a three-wire connection mode, namely an end A, an end B and an end C, the end A is a door lock control wire, the end B is a door lock commercial power inlet wire, the end C is a door lock outlet wire, the circuit is connected with a commercial power N line circuit and a door switch detection circuit double circuit according to the end A, the end B is connected with a commercial power L line, and the end C is connected with a door switch detection circuit and electric equipment.
Further, the door switch detection circuit converts a strong current area side signal on the door lock into a weak current area side signal, which is a frequency signal of 50 Hz.
Further, on the strong electric region side: when the DOOR is in a closed state, a DOOR switch live wire signal CTL-DOOR has a commercial power L signal, the commercial power L signal passes through a diode D23, passes through two current-limiting resistors R78, R79 and is connected with the front stage of an optical coupler IC19, and forms a loop with a commercial power zero line N, and a resistor R80, a diode D14 and a capacitor C57 are connected in parallel on the loop formed by the CTL-DOOR, the diode D23, the current-limiting resistor R78, the current-limiting resistor R79, the optical coupler IC19 and the commercial power zero line N.
Further, weak current region side: the resistor R81, the resistor R82, the resistor R84 and the triode Q21 are connected in series to form a loop, the resistor R83 and the capacitor C58 are connected in parallel to the loop, and a signal on a collector of the triode Q21 passes through the resistor R110 and is connected with the capacitor C59 in parallel to form a DOOR-TEST signal.
Further, when the optocoupler IC19 is turned on, the base of the transistor Q21 is in a low level state, the transistor Q21 is turned off, the DOOR-TEST signal detected by the main transformer all-in-one computer board MCU is at a 5V high level, and when the optocoupler IC19 is turned off, the base of the transistor Q21 is at a high level, the transistor Q21 is turned on, and the DOOR-TEST signal is at a low level.
Further, when the DOOR is closed, the optical coupler IC19 is periodically turned on and off, and the corresponding DOOR-TEST signal is a square wave signal of 50 Hz.
Further, when the DOOR is opened, the optocoupler IC19 is always in the closed state, and the corresponding DOOR-TEST signal is a low level signal.
The invention has the following beneficial effects: the invention detects the signal and judges the state of the door by designing the circuit. When washing of the washing machine is finished, the door lock is firstly opened, if the door is not opened, the user forgets to take the clothes, the user can be reminded if the time is long, and the user can be reminded to take the clothes through voice, app, a buzzer, short messages and the like. If the clothes are not taken out for a longer time, the clothes can be shaken by the washing machine, and the air is blown to deodorize. If the door is not closed after being opened, the user can be reminded, and the washing machine is more intelligent.
Description of the drawings:
fig. 1 is a view of a door and door lock assembly.
FIG. 2 is a schematic diagram of a door switch detection circuit.
FIG. 3 is a schematic view illustrating a door switch detecting method of a drum washing machine according to the present invention.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the door lock is in a three-wire connection mode, wherein the end A is a door lock control wire, the end B is a door lock mains supply incoming wire, and the end C is a door lock outgoing wire. The circuit composition is connected with a double circuit of a commercial power N line circuit and a detection circuit according to A, B is connected with a commercial power L line, and C is connected with a door switch detection circuit and other electric devices.
As shown in fig. 2, the door switch detection circuit can convert a strong electric signal on the door lock into a weak electric signal, and the weak electric signal is a 50Hz frequency signal and is the same as the commercial power frequency.
1. Strong electric region side: when the DOOR is in a closed state, a DOOR switch live wire signal CTL-DOOR has a mains supply L signal, and the circuit works under a safe low-current condition through a diode D23 and two current-limiting resistors R78 and R79. And then the front stage of the optical coupler IC19 is connected, and the optical coupler and a commercial power zero line N form a loop. The conducting and non-conducting optical couplers form a 50Hz frequency signal.
A loop formed by the CTL-DOOR, the diode D23, the current limiting resistor R78, the current limiting resistor R79, the optical coupler IC19 and the mains supply zero line N is connected with a resistor R80, a diode D14 and a capacitor C57 in parallel.
And in the DOOR opening state, the CTL-DOOR has no signal, the optical coupler IC19 is always not conducted, and a 50Hz frequency signal does not exist.
2. Weak current region side: the resistor R81, the resistor R82, the resistor R84 and the triode Q21 are connected in series to form a loop, and the resistor R83 and the capacitor C58 are connected in parallel on the loop. The signal at the collector of transistor Q21 passes through resistor R110 and parallel capacitor C59 to form the DOOR-TEST signal.
When the optocoupler IC19 is switched on, the base of the triode Q21 is in a low level state, then the Q21 is switched off, the DOOR-TEST signal detected by the main control MCU is in a 5V high level, when the optocoupler IC19 is switched off, the base of the triode Q21 is in a high level, then the triode Q21 is switched on, and the DOOR-TEST signal is in a low level.
Therefore, when the DOOR is closed, the optical coupler IC19 is periodically switched on and off, and the corresponding DOOR-TEST signal is a square wave signal of 50 Hz.
When the DOOR is opened, the optocoupler IC19 is always in a closed state, and the corresponding DOOR-TEST signal is a low level signal. Through this circuit, the master MCU can sense the DOOR switch state by detecting the DOOR-TEST signal state.
As shown in fig. 3, the door state 01 of the washing machine determines the opening and closing of a signal line of the door lock state 03 of the washing machine. When the washing machine is powered on, the mains supply strong electric L line 02 enters the door lock. Two door switch detection circuits are arranged on the computer board and connected to the door locks, namely a first optical coupling isolation detection circuit 04 and a first optical coupling isolation detection circuit 05. The on-off of the live wire is converted to a weak current signal through an optical coupling isolation detection circuit and transmitted to a main transformer integrated computer board MCU08, such as a door lock weak current signal 06 and a door switch weak current signal 07 in the figure.
The washing machine is composed of two control panels, namely a main transformer integrated computer panel MCU08 and a display computer panel MCU 09. The main transformer integrated computer board MCU08 transmits the detected signal to the display computer board MCU09 through the function of serial port line. The display computer board MCU09 is used for processing signals in a unified manner. The final realization is that the washing machine is intelligent, and when the washing machine finishes, the lock can be opened automatically, and when the door was not opened, it explains that the user forgot the sunning clothes, can remind the notice with voice broadcast 10, wiFi-app11, and the charactron scintillation pilot lamp 12 shows. When the clothes are not taken out for airing for a long time, the washing machine can shake the clothes, and the air is blown to remove the smell, so that the healthy washing is realized.
The door opening and closing detection system of the drum washing machine of the invention has the following principle that the detection door is opened or closed: when the door is opened, the door connecting switch is in an open state, the end A cannot detect the commercial power L signal, and the corresponding isolation detection circuit does not generate weak current signals. When the door is closed, the door connecting switch is in a closed state, the A end can detect a commercial power L signal, and a corresponding isolation detection circuit generates a 50Hz frequency signal.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (8)
1. A door switch detection method of a drum washing machine is characterized in that: the method comprises the following steps:
the method comprises the following steps: the washing machine is powered on, and a mains supply strong current L line (02) enters the door lock;
step two: two door switch detection circuits are arranged on a washing machine computer board and connected to a door lock, namely a first optical coupling isolation detection circuit (04) and a first optical coupling isolation detection circuit (05), and the on-off of a live wire is converted into a door lock weak current signal (06) and a door switch weak current signal (07) through the first optical coupling isolation detection circuit (04) and the first optical coupling isolation detection circuit (05) and transmitted to a main transformer integrated computer board MCU (08);
step three: the washing machine is composed of two control panels, namely a main transformer integrated computer board MCU (08) and a display computer board MCU (09), wherein the main transformer integrated computer board MCU (08) transmits detected signals to the display computer board MCU (09) through a serial port line function;
step four: the display computer board MCU (09) processes signals in a unified mode, the intellectualization of the washing machine is finally achieved, when the washing machine is finished, the door lock is automatically opened, when the door is not opened, the user forgets to air clothes, the prompt is given through voice broadcast (10) and WiFi-app (11), and a nixie tube flashes an indicator lamp (12) for displaying;
step five: when the clothes are not taken out for airing for a long time, the washing machine shakes the clothes, and the air is blown to remove the smell.
2. The door opening and closing detecting method of a drum washing machine according to claim 1, characterized in that: the door lock is three line connected modes, namely, an A end, a B end and a C end, the A end is a door lock control line, the B end is a door lock commercial power inlet line, the C end is a door lock outlet line, the circuit is connected with a commercial power N line circuit and a door switch detection circuit double circuit according to the A end, the B end is a commercial power L line, and the C end is connected with a door switch detection circuit and electric equipment.
3. The door opening and closing detecting method of a drum washing machine according to claim 2, characterized in that: the door switch detection circuit converts a strong current area side signal on the door lock into a weak current area side signal, and the weak current area side signal is a 50Hz frequency signal.
4. The door opening and closing detecting method of a drum washing machine according to claim 3, characterized in that: strong electric region side: when the DOOR is in a closed state, a DOOR switch live wire signal CTL-DOOR has a commercial power L signal, passes through a diode D23 and then passes through two current-limiting resistors R78 and R79 to be connected with the front stage of an optical coupler IC19 to form a loop with a commercial power zero line N, and a resistor R80, a diode D14 and a capacitor C57 are connected in parallel on the loop formed by the CTL-DOOR, the diode D23, the current-limiting resistor R78, the current-limiting resistor R79, the optical coupler IC19 and the commercial power zero line N.
5. The door opening and closing detecting method of a drum washing machine according to claim 4, characterized in that: weak current region side: the resistor R81, the resistor R82, the resistor R84 and the triode Q21 are connected in series to form a loop, the resistor R83 and the capacitor C58 are connected in parallel to the loop, and a signal on a collector of the triode Q21 passes through the resistor R110 and is connected with the capacitor C59 in parallel to form a DOOR-TEST signal.
6. The door opening and closing detecting method of a drum washing machine according to claim 5, characterized in that: when the optocoupler IC19 is switched on, the base electrode of the triode Q21 is in a low level state, the triode Q21 is switched off, a DOOR-TEST signal detected by the MCU (08) of the main transformer integrated computer board is in a 5V high level, when the optocoupler IC19 is switched off, the base electrode of the triode Q21 is in a high level, the triode Q21 is switched on, and the DOOR-TEST signal is in a low level.
7. The door opening and closing detecting method of a drum washing machine according to claim 6, characterized in that: when the DOOR is closed, the optical coupler IC19 is periodically switched on and off, and the corresponding DOOR-TEST signal is a square wave signal of 50 Hz.
8. The door opening and closing detecting method of a drum washing machine according to claim 7, characterized in that: when the DOOR is opened, the optocoupler IC19 is always in a closed state, and the corresponding DOOR-TEST signal is a low level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210760014.8A CN114990842B (en) | 2022-06-30 | 2022-06-30 | Door switch detection method for drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210760014.8A CN114990842B (en) | 2022-06-30 | 2022-06-30 | Door switch detection method for drum washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114990842A true CN114990842A (en) | 2022-09-02 |
| CN114990842B CN114990842B (en) | 2024-03-26 |
Family
ID=83020137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210760014.8A Active CN114990842B (en) | 2022-06-30 | 2022-06-30 | Door switch detection method for drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114990842B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021725A1 (en) * | 2013-08-16 | 2015-02-19 | 海尔集团公司 | Door-opening indicator for drum washing machine and door-opening control method therefor |
| DE102014216556A1 (en) * | 2014-08-20 | 2016-02-25 | BSH Hausgeräte GmbH | Circuit arrangement for controlling an electrically driven locking device for a door of a household appliance, household appliance and method for this |
| CN205529536U (en) * | 2016-01-21 | 2016-08-31 | 珠海格力电器股份有限公司 | Washing machine |
| CN106676831A (en) * | 2015-11-11 | 2017-05-17 | 无锡小天鹅股份有限公司 | Washing machine door lock state detecting method and system and washing machine |
| CN106988075A (en) * | 2016-01-21 | 2017-07-28 | 珠海格力电器股份有限公司 | Washing machine and control method and device thereof |
| CN111118811A (en) * | 2020-02-14 | 2020-05-08 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN211947603U (en) * | 2020-01-08 | 2020-11-17 | 海信（山东）冰箱有限公司 | Drum washing machine |
| CN113265843A (en) * | 2021-05-24 | 2021-08-17 | 海信（山东）冰箱有限公司 | Washing machine and control method thereof |
| CN113550121A (en) * | 2021-08-17 | 2021-10-26 | 四川虹美智能科技有限公司 | Washing machine door lock state detection method and device |
-
2022
- 2022-06-30 CN CN202210760014.8A patent/CN114990842B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015021725A1 (en) * | 2013-08-16 | 2015-02-19 | 海尔集团公司 | Door-opening indicator for drum washing machine and door-opening control method therefor |
| DE102014216556A1 (en) * | 2014-08-20 | 2016-02-25 | BSH Hausgeräte GmbH | Circuit arrangement for controlling an electrically driven locking device for a door of a household appliance, household appliance and method for this |
| CN106676831A (en) * | 2015-11-11 | 2017-05-17 | 无锡小天鹅股份有限公司 | Washing machine door lock state detecting method and system and washing machine |
| CN205529536U (en) * | 2016-01-21 | 2016-08-31 | 珠海格力电器股份有限公司 | Washing machine |
| CN106988075A (en) * | 2016-01-21 | 2017-07-28 | 珠海格力电器股份有限公司 | Washing machine and control method and device thereof |
| CN211947603U (en) * | 2020-01-08 | 2020-11-17 | 海信（山东）冰箱有限公司 | Drum washing machine |
| CN111118811A (en) * | 2020-02-14 | 2020-05-08 | 青岛海尔洗衣机有限公司 | Control method of washing machine and washing machine |
| CN113265843A (en) * | 2021-05-24 | 2021-08-17 | 海信（山东）冰箱有限公司 | Washing machine and control method thereof |
| CN113550121A (en) * | 2021-08-17 | 2021-10-26 | 四川虹美智能科技有限公司 | Washing machine door lock state detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114990842B (en) | 2024-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102830661B (en) | House control system and appliance control method | |
| CN207369007U (en) | Soft-touch control | |
| CN104950772B (en) | A kind of dish-washing machine and its stand-by power consumption control device and method | |
| CN114990842A (en) | Door switch detection method of drum washing machine | |
| CN104216309B (en) | A kind of devices and methods therefor with intelligent standby power on/off function | |
| CN204129895U (en) | Detector for electric fire protection | |
| CN203260838U (en) | Special energy-saving power strip for computer and television | |
| CN101924305A (en) | The master-slave mode socket device of tool sequential control | |
| CN110906406B (en) | Multifunctional range hood control system, range hood and control method | |
| CN205994433U (en) | A kind of SCM Based hand dryer | |
| CN208779644U (en) | A kind of Indoor Environment Safety and Its energy saver of automatic control | |
| CN203299584U (en) | Device with intelligent standby power on/off function | |
| CN202601992U (en) | Power patch board with remote control function | |
| CN204633152U (en) | There is the switch cubicle of prompting function | |
| CN205212220U (en) | Power distribution cabinet | |
| CN220913527U (en) | Solenoid valve control circuit and microwave oven | |
| CN217032583U (en) | Multi-data acquisition device for cabinet | |
| CN110120652A (en) | A kind of method, system and air conditioner for preventing power down from accidentally protecting | |
| CN216560959U (en) | Main and standby coil detection circuit for driving module of permanent magnet circuit breaker of ring main unit | |
| CN104597881B (en) | Single-person household electrical controlling system | |
| CN204513693U (en) | Single-phase Self-start controller for use after power recovery of air conditioner | |
| CN104362583B (en) | Burst current detection switch | |
| CN108388222A (en) | Cascade bus the intelligent domestic appliance controller | |
| CN205583295U (en) | Novel household socket | |
| CN215494637U (en) | Intelligent household electrical appliance and automatic display screen switching device thereof |
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 |