CN106989518A - A kind of household electrical appliance - Google Patents
A kind of household electrical appliance Download PDFInfo
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- CN106989518A CN106989518A CN201710393149.4A CN201710393149A CN106989518A CN 106989518 A CN106989518 A CN 106989518A CN 201710393149 A CN201710393149 A CN 201710393149A CN 106989518 A CN106989518 A CN 106989518A
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- Prior art keywords
- master control
- control borad
- signal
- infrared sensor
- battery
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- 230000001681 protective effect Effects 0.000 claims abstract description 78
- 238000001514 detection method Methods 0.000 claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims description 42
- 230000005611 electricity Effects 0.000 claims description 39
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 10
- 229910001416 lithium ion Inorganic materials 0.000 claims description 10
- 238000007667 floating Methods 0.000 claims description 3
- 208000012802 recumbency Diseases 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 13
- 230000005855 radiation Effects 0.000 description 11
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 230000005616 pyroelectricity Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000036760 body temperature Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000003287 bathing Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000003205 fragrance Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000007903 penetration ability Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The embodiment provides a kind of household electrical appliance; it is related to electric leakage protection technology field; solve the connection that although earth leakage protective device of the prior art has cut off water heater and civil power; but corresponding display device and control section can not be used on water heater, therefore the problem of reduce the experience of user.The household electrical appliance include, master control borad, and the Auxiliary Functioning Unit powered by master control borad；The earth leakage protective device between mains plug and master control borad is connected to, to be configured to the mains-supplied path that master control borad is powered；The chargeable stand-by power supply between earth leakage protective device and master control borad is connected to, to be configured to the stand-by power supply path that master control borad is powered, the output voltage of stand-by power supply is the direct current less than or equal to 36V；It is connected to the circuit switching device between mains-supplied path, stand-by power supply path and master control borad；The human body detection device being connected with master control borad.The embodiment of the present invention is used for the manufacture of display device.
Description
Technical field
The present invention relates to electric leakage protection technology field, more particularly to a kind of household electrical appliance.
Background technology
In the prior art, electric heater automatically power off technology be mainly water outlet power-off, water outlet power-off principle be：Water heater
Water inlet adds a water flow sensing unit, and water flow sensing unit is mainly made up of rotor with Hall element, when water flows through water flow sensing unit
Afterwards, the rotor in water flow sensing unit can followed by the size of water-carrying capacity and rotate, at the same drive Hall element, Hall element it is defeated
Outlet can export the frequency signal of correspondence water-carrying capacity size, and electric water heater controller, which is detected, judges current after this frequency signal
In water state is used, electric heater is controlled to power off by logic drive circuit, it is ensured that user will not be due to electric heater electrical leakage
And get an electric shock；And this kind of mode is only disconnected the power supply of electric heater, earth leakage circuit-breaker power line, water flow sensing unit and
Electric water heater controller is still powered, if water flow sensing unit can directly bring electricity in water into because the reason such as short circuit is powered, jeopardize
User's uses safety.
It is disconnected using pyroelectric infrared sensor and independent smart jack in order to make up the deficiency that tradition automatically powers off technology
The earth leakage protective device of electricity arises at the historic moment；When people enters search coverage, the thermal infrared that pyroelectric infrared sensor detection human body is sent
Signal simultaneously sends wireless signal to smart jack, and smart jack is received after wireless signal, is detecting line voltage zero-acrross ing moment
Simultaneously switch off the zero line and live wire of water heater, it is ensured that water heater is fully powered-off, prevent electric heater electric leakage accident；However, this
Way has cut off the connection of water heater and civil power, and now corresponding display device and control section can not be used on water heater,
Reduce the experience of user.
From the foregoing, although earth leakage protective device of the prior art has cut off the connection of water heater and civil power, but by
It can not be used in corresponding display device on water heater and control section, therefore reduce the experience of user.
The content of the invention
Embodiments of the invention provide a kind of household electrical appliance, although solving earth leakage protective device cut-out of the prior art
The connection of water heater and civil power, but corresponding display device control section can not be used on water heater, therefore reduce user
Experience the problem of.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
The embodiment provides a kind of household electrical appliance, including：Master control borad, and the auxiliary powered by master control borad
Functional part；The earth leakage protective device between mains plug and master control borad is connected to, the civil power powered to be configured to master control borad is supplied
Electric pathway；The chargeable stand-by power supply between earth leakage protective device and master control borad is connected to, is powered with to be configured to master control borad
Stand-by power supply path, the output voltage of stand-by power supply is the direct current less than or equal to 36V；Be connected to mains-supplied path, it is standby
Circuit switching device between supply access and master control borad；The human body detection device being connected with master control borad；Wherein, master control borad is used for
The induced signal of human body sensing device is received, and when induced signal meets cut-out civil power condition, is sent to earth leakage protective device
Cut-offing instruction；Circuit switching device switches to stand-by power supply path when mains-supplied path is powered off.
Specifically, Auxiliary Functioning Unit includes：At least one in temperature detector, display device and key device.
Specifically, stand-by power supply includes：Charging control circuit, battery and boost control circuit；Wherein, battery connection is filled
Electric control circuit and boost control circuit, charging control circuit connection earth leakage protective device, boost control circuit connection circuit are cut
Changing device；Charging control circuit, for when the electricity of battery is less than default electricity, being charged to battery；When the electricity of battery
When amount is more than or equal to default electricity, floating charge is carried out to battery；Boost control circuit, the electric signal stabilization for battery to be exported exists
The driving voltage of master control borad.
Specifically, stand-by power supply also includes：Electric quantity detecting circuit, electric quantity detecting circuit is connected with battery and master control borad；
Electric quantity detecting circuit, for detecting that the remaining charging interval or socking out time of battery are sent to master control borad；Master control borad, also
For the remaining charging interval or socking out time of the battery sent according to electric power detection module, control in household electrical appliance
Display device shows the remaining charging interval of battery.
Specifically, battery includes:Chargeable lithium ion battery or battery.
Specifically, human body detection device includes：Stepper motor and the infrared biography in the rotary shaft of stepper motor
Sensor；Wherein, stepper motor is connected with master control borad, the control signal for receiving master control borad transmission；Infrared sensor and master control
Plate is connected, for the signal sensed to be sent to master control borad.
Specifically, infrared sensor includes：Pyroelectric infrared sensor；Pyroelectric infrared sensor, for obtaining detection
The signal sensed in region, and the signal sensed is sent to master control borad；Master control borad, specifically for being passed when rpyroelectric infrared
When the number of times that the signal that sensor is sensed occurs in preset time is more than preset value, sends power-off to earth leakage protective device and refer to
Order.
Specifically, infrared sensor includes：Matrix form infrared sensor；Matrix form infrared sensor, for obtaining detection
The signal sensed in region, and the signal sensed is sent to master control borad；Master control borad, specifically for when the infrared biography of matrix form
When the number of times that the signal that sensor is sensed occurs in preset time is more than preset value, sends power-off to earth leakage protective device and refer to
Order.
Specifically, infrared sensor includes：Pyroelectric infrared sensor and matrix form infrared sensor, wherein, matrix form
The search coverage of infrared sensor is located in pyroelectric infrared sensor search coverage；Pyroelectric infrared sensor, for obtaining
The first signal sensed in search coverage, and the first signal sensed is sent to master control borad；Matrix form infrared sensor,
The secondary signal sensed for obtaining in search coverage, and the secondary signal sensed is sent to master control borad；Master control borad, tool
Body is used for when the number of times that the first signal that pyroelectric infrared sensor is obtained occurs in preset time is more than or equal to preset value,
The current state of human body is determined according to the secondary signal that matrix form infrared sensor is obtained, when it is determined that the current state of human body is station
During vertical or recumbency state, cut-offing instruction is sent to earth leakage protective device；Otherwise, existing parameter operation is kept.
Specifically, master control borad, it is additionally operable to when receiving the enabled signal of stand-by power supply path, to Auxiliary Functioning Unit
It is transmitted into the instruction of energy saver mode.
Household electrical appliance provided in an embodiment of the present invention, by setting output voltage to be the standby of the direct current less than or equal to 36V
With power supply, when the sensing result for the human body sensing device that master control borad is received meets cut-out civil power condition, to earth leakage protective device
Send cut-offing instruction；Circuit switching device switches to stand-by power supply path, now there is standby electricity when mains-supplied path is powered off
Source powers for master control borad, because other Auxiliary Functioning Units are connected with master control borad；Therefore, disconnected and city in earth leakage protective device
During the connection of plug, master control borad still can normally be run with other Auxiliary Functioning Units；Rather than leaking electricity in the prior art
Protector has cut off the connection of water heater and civil power, but is due to that corresponding display device and control section can not on water heater
Use；Secondly as the output voltage of stand-by power supply is direct current less than or equal to 36V, even if not occurring electric leakage to human body also not
Infringement can be produced；Therefore the connection that although earth leakage protective device in the prior art has cut off water heater and civil power is solved, but it is hot
The problem of corresponding display device and control section can not be used on hydrophone.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of structural representation for household electrical appliance that Fig. 1 provides for embodiments of the invention；
A kind of another structural representation for household electrical appliance that Fig. 2 provides for embodiments of the invention；
A kind of another structural representation for household electrical appliance that Fig. 3 provides for embodiments of the invention；
The structural representation of earth leakage protective device in a kind of household electrical appliance that Fig. 4 provides for embodiments of the invention；
The installation signal of stepper motor in a kind of household electrical appliance that Fig. 5-a- Fig. 5-b provide for embodiments of the invention
Figure；
The work signal of matrix form infrared sensor in a kind of household electrical appliance that Fig. 6 provides for embodiments of the invention
Figure.
Reference：
Household electrical appliance -10；
Master control borad -101；
Auxiliary Functioning Unit -102；Temperature detector -1020；Display device -1021；Key device -1022；
Mains plug -103；
Earth leakage protective device -104；External power source detection means -1040；Earth leakage protective control single chip computer -1041；Electric leakage is protected
Protect movement device -1042；
Stand-by power supply -105；Charging control circuit -1050；Battery -1051；Boost control circuit -1052；Electric power detection electricity
Road -1053；
Circuit switching device -106；
Human body detection device -107；Stepper motor -1070；Infrared sensor -1071.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Exemplary, in order to describe the household electrical appliance that preferably description embodiments of the invention are provided, adopted here with battery
Chargeable lithium ion battery is used, human body sensing device is by pyroelectric infrared sensor, matrix form infrared sensor and stepping electricity
Machine is constituted, and stand-by power supply is made up of charging control circuit, battery, boost control circuit and electric quantity detecting circuit, miscellaneous function
Part is made up of temperature detector, display device and key device, exemplified by illustrate specific embodiment as follows：
Embodiment one, The embodiment provides a kind of household electrical appliance 10, include as shown in Figure 1：Master control borad 101,
And the Auxiliary Functioning Unit 102 powered by master control borad 101；It is connected to the electric leakage between mains plug 103 and master control borad 101
Protection device 104, to be configured to the mains-supplied path of the power supply of master control borad 101；It is connected to earth leakage protective device 104 and master control borad
Chargeable stand-by power supply 105 between 101, to be configured to the stand-by power supply path that master control borad is powered, stand-by power supply 105 it is defeated
It is the direct current less than or equal to 36V to go out voltage；It is connected between mains-supplied path, stand-by power supply path and master control borad 101
Circuit switching device 106；The human body detection device 107 being connected with master control borad 101；Wherein, master control borad 101 is used for recipient's body-sensing
The induced signal of device 107 is answered, and when induced signal meets cut-out civil power condition, sends and powers off to earth leakage protective device 104
Instruction；Circuit switching device 106 switches to stand-by power supply path when mains-supplied path is powered off.
It should be noted that earth leakage protective device disconnects zero line, fire immediately after receiving the power off command of master control borad transmission
The connection of line, ground wire, prevents any forceful electric power from flowing into water heater, protects the safety of user.
Specifically, Auxiliary Functioning Unit includes：In temperature detector 1020, display device 1021 and key device 1022
At least one.
It should be noted that temperature detector 1020, for detecting current water temperature, and sends water temperature testing result to master
Control plate 101；Master control borad 101, for the water temperature testing result detected according to temperature detector 1020, controls display device 1021
Show current water temperature.
Key device, for receiving the control instruction of user's input, and forwards control instruction to master control borad；Master control borad, is used
In the control instruction forwarded according to key device, control electric household appliance is run according to control instruction.
Specifically, master control borad, it is additionally operable to when receiving the enabled signal of stand-by power supply path, to Auxiliary Functioning Unit
It is transmitted into the instruction of energy saver mode.
It should be noted that in actual application, Auxiliary Functioning Unit is received into after the instruction of energy saver mode, meeting
Automatically into energy saver mode；Exemplary, illustrated so that Auxiliary Functioning Unit is display device as an example：When display device is received
To entering after the instruction of energy saver mode, light-emitting diode display brightness is reduced immediately, stand-by power supply path is lighted and enables indicator lamp, lights
Safe bathing indicator lamp simultaneously enters energy saver mode；Stand-by power supply is got by battery by boosting, for the direct current less than or equal to 36V
Electricity, any harm will not be also caused even if electric leakage to human body.
Household electrical appliance provided in an embodiment of the present invention, by setting output voltage to be the standby of the direct current less than or equal to 36V
With power supply, when the sensing result for the human body sensing device that master control borad is received meets cut-out civil power condition, to earth leakage protective device
Send cut-offing instruction；Circuit switching device switches to stand-by power supply path, now there is standby electricity when mains-supplied path is powered off
Source powers for master control borad, because other Auxiliary Functioning Units are connected with master control borad；Therefore, disconnected and city in earth leakage protective device
During the connection of plug, master control borad still can normally be run with other Auxiliary Functioning Units；Rather than leaking electricity in the prior art
Protector has cut off the connection of water heater and civil power, but is due to that corresponding display device and control section can not on water heater
Use；Secondly as the output voltage of stand-by power supply is direct current less than or equal to 36V, even if not occurring electric leakage to human body also not
Infringement can be produced；Therefore the connection that although earth leakage protective device in the prior art has cut off water heater and civil power is solved, but it is hot
The problem of corresponding display device and control section can not be used on hydrophone.
Embodiment two, The embodiment provides a kind of household electrical appliance 10, include as shown in Figure 2：Master control borad 101,
And the Auxiliary Functioning Unit 102 powered by master control borad 101；It is connected to the electric leakage between mains plug 103 and master control borad 101
Protection device 104, to be configured to the mains-supplied path of the power supply of master control borad 101；The connection of battery 1051 charging control circuit 1050,
Boost control circuit 1052 and electric quantity detecting circuit 1053, the connection earth leakage protective device 104 of charging control circuit 1050, electricity inspection
Slowdown monitoring circuit 1053 is connected with battery 1051 and master control borad 101, to be configured to the stand-by power supply path of the power supply of master control borad 101；Connection
Circuit switching device 106 between mains-supplied path, stand-by power supply path and master control borad 101, wherein, boost control circuit
1052 are connected with circuit switching device 106；The stepper motor 1070 being connected with master control borad 101, sends for receiving master control borad 101
Control signal, the infrared sensor 1071 being connected with master control borad 101；Wherein, infrared sensor 1071 is arranged on stepper motor
In 1070 rotary shaft, for the signal sensed to be sent to master control borad 101；Master control borad 101 is used to receive human body sensing dress
107 induced signal is put, and when induced signal meets cut-out civil power condition, cut-offing instruction is sent to earth leakage protective device 104；
Circuit switching device 106 switches to stand-by power supply path when mains-supplied path is powered off；Charging control circuit 1050, is used for
When the electricity of battery 1051 is less than default electricity, battery 1051 is charged；When the electricity of battery 1051 is more than or equal in advance
If during electricity, floating charge is carried out to battery 1051；Boost control circuit 1052, the electric signal stabilization for battery 1051 to be exported exists
The driving voltage of master control borad 101；Electric quantity detecting circuit 1053, remaining charging interval or residue for detecting battery 1051 put
The electric time is sent to master control borad 101；Master control borad 101, the battery 1051 for being additionally operable to be sent according to electric power detection module 1053 it is surplus
When display device in remaining charging interval or socking out time, control household electrical appliance 10 shows the remaining charging of battery 1051
Between.
It should be noted that in actual application, stand-by power supply operation principle approximately as：
(1) when earth leakage protective device is electrically connected with city, electric quantity detecting circuit constantly detects what lithium ion battery was laid in
Electricity, works as electricity<Charging control circuit is then enabled when 90%, lithium ion battery is charged；Work as electricity>Then closed when 99%
Charging control circuit, stopping is charged to lithium ion battery, prevents lithium battery from overshooting, and improves the service life of battery；Charging
During electric quantity detecting circuit the remaining charging interval can be estimated according to charging rate and battery capacity, and be transferred to household electrical appliance
Display device is shown.
(2) when earth leakage protective device disconnects the connection with civil power, electric quantity detecting circuit constantly detects lithium ion battery institute
The electricity of deposit, works as electricity>The electricity in boost control circuit, lithium battery is enabled when 10% to be transmitted by boost control circuit
To master control borad, master control borad is set also to be worked after external power source disconnection；Work as electricity<Boost control circuit is then closed when 10%, is stopped
Only master control borad is powered, prevents lithium battery is crossed from putting, the service life of battery is improved；Electric quantity detecting circuit can in discharge process
The socking out time is estimated according to the velocity of discharge and battery capacity, and is transferred to the display device of household electrical appliance and is shown.
(3) when earth leakage protective device disconnects the connection with civil power, circuit switching device immediately cuts mains-supplied path
Stand-by power supply path is changed to, if now lithium battery dump energy>10%, boost control circuit is enabled immediately, and electric-controlled plate can continue
Normal work.
(4) when the connection of earth leakage protective device and civil power, stand-by power supply path is switched to by circuit switching device immediately
Mains-supplied path, simultaneously closes off boost control circuit, if now lithium battery dump energy<When 90%, charging control circuit pair
Lithium ion battery is charged.
In actual application, stand-by power supply as shown in Figure 3 constitutes lithium battery detection control dress with circuit switching device
Put；Master control borad 101 includes as shown in Figure 3：Input/output signal detects control single chip computer and logic control single-chip microcomputer；Wherein, it is defeated
Enter output signal detection control single chip computer connection temperature detector, circuit switching device, human body sensing device and logic control
Single-chip microcomputer, logic control single-chip microcomputer connection key device and display device；Exemplary, human body sensing device is arranged on electric hot water
The lower section of device, electric heater is arranged in bathroom；If someone enters bathroom, human body sensing device can sense that someone enters,
Send human body signal and detect control single chip computer to input/output signal；Input/output signal detection control single chip computer receives human body
Logic control single-chip microcomputer is transmitted to after signal；If logic control single-chip microcomputer is continuous in preset time to receive human body letter several times
Number, then judge that someone enters bathroom and needs to carry out power-off protection, logic control single-chip microcomputer sends power-off signal to be believed to input and output
Number detection control single chip computer；Input/output signal detection control single chip computer is received after power-off signal to controllable type earth leakage protective device
Send power off command；Controllable type earth leakage protective device receive after power off command disconnect immediately leakage protect the zero line of switch, live wire,
Line, prevents any forceful electric power from flowing into water heater, protects the safety of user；At the same time lithium ion battery detection control apparatus can be examined
Measure electrically disconnected with city, be immediately switched to stand-by power supply, and give input/output signal detection control single chip computer to send standby electricity
Source has been turned on signal；Input/output signal detection control single chip computer, which receives stand-by power supply and has been turned on signal, is transmitted to the signal
Logic control single-chip microcomputer simultaneously enters energy saver mode；Logic control single-chip microcomputer, which receives stand-by power supply and has been turned on signal, is transmitted to display
Control section simultaneously enters energy saver mode；Display control section receives stand-by power supply and has been turned on signal reduces light-emitting diode display immediately
Brightness, light stand-by power supply and enable indicator lamp, light safe bathing indicator lamp and enter energy saver mode；Stand-by power supply is passed through by battery
Cross boosting to get, for the direct current less than or equal to 36V, any harm will not be also caused to human body even if electric leakage.
In actual application, earth leakage protective device 104 includes as shown in Figure 4：External power source detection means 1040, electric leakage
Protect control single chip computer 1041 and earth leakage protective movement device 1042, the connection mains plug of external power source detection means 1040
103 and earth leakage protective control single chip computer 1041, the He of the connection earth leakage protective of earth leakage protective control single chip computer 1041 movement device 1042
Master control borad 101, the connection circuit switching device 106 of earth leakage protective movement device 1042；Wherein, external power source detection means, is used for
Detect the civil power inputted by mains plug with the presence or absence of electric leakage or line fault；Deposited when detecting the civil power that is inputted by mains plug
In electric leakage or line fault, electric leakage or line fault signal are sent to earth leakage protective control single chip computer；Earth leakage protective control is single
Electric leakage or line fault signal that piece machine is sent according to external power source detection means, control earth leakage protective movement device disconnect and city
The connection of electricity.
In the case of civil power is normally accessed, external power source detection means persistently detects whether civil power is normal, if not finding Lou
Situations such as electricity or line fault, then sent to earth leakage protective control single chip computer without electric leakage or line fault signal；Earth leakage protective control
Single-chip microcomputer processed controls earth leakage protective movement device constant conduction to after without electric leakage or line fault signal, and master control borad is supplied electricity to using city
Power supply, and send without electric leakage or line fault signal to master control borad；The nothing that master control borad is sent according to earth leakage protective control single chip computer
Electric leakage or line fault signal, control display device are shown without electric leakage or line fault.
In the case that city is electrically disconnected (earth leakage protective movement device does not disconnect), external power source detection means detects city
It is electrically disconnected, and civil power cut-off signal is sent to earth leakage protective control single chip computer；Earth leakage protective control single chip computer is by the electrically disconnected letter in city
Number it is forwarded to master control borad；The civil power cut-off signal that master control borad is sent according to earth leakage protective control single chip computer, control display device shows
Show that city is electrically disconnected.
In the case of civil power is normally accessed, external power source detection means persistently detects whether civil power is normal, if finding electric leakage
Or situations such as line fault, then electric leakage or line fault signal are sent to earth leakage protective control single chip computer, earth leakage protective control is single
Piece machine will leak electricity or line fault signal is forwarded to master control borad；Electric leakage that master control borad is sent according to earth leakage protective control single chip computer or
Line fault signal, control display device display electric leakage or line fault signal.
In the case of civil power is normally accessed, external power source detection means persistently detects whether civil power is normal, if not finding Lou
Situations such as electricity or line fault, then sent to earth leakage protective control single chip computer without electric leakage or line fault signal；If now master control
The induced signal that plate is sent according to human body detection device, when judging someone, sends power-off signal to earth leakage protective control single chip computer,
Earth leakage protective control single chip computer disconnects the connection with civil power according to power-off signal, control earth leakage protective movement device, meanwhile, send
Power-off protection signal is to master control borad；The power-off protection signal that master control borad is sent according to earth leakage protective control single chip computer, control display
Device is shown in power-off protection state.
External power source detection means persistently detects whether civil power is normal in the case of civil power is normally accessed, if not finding electric leakage
Or situations such as line fault, then sent to earth leakage protective control single chip computer without electric leakage or line fault signal；If now electric leakage is protected
Protect movement device and be in power-off protection state, then maintain control leakage to protect action part tripped condition；When master control borad is according to people's physical examination
The induced signal that device is sent is surveyed, when judging nobody, power up signal is sent to earth leakage protective control single chip computer, electric leakage is protected
The power up signal that shield control single chip computer is sent according to master control borad, control earth leakage protective movement device recovers the company with civil power
Connect, and control display device to show that power supply is normal.
Specifically, battery 1051 includes:Chargeable lithium ion battery or battery.
Specifically, human body detection device includes：Stepper motor and the infrared biography in the rotary shaft of stepper motor
Sensor；Wherein, stepper motor is connected with master control borad, the control signal for receiving master control borad transmission；Infrared sensor and master control
Plate is connected, for the signal sensed to be sent to master control borad.
It should be noted that in actual application, infrared sensor is installed for convenience can be by the side of electrical connection
Formula carries out the transmission of signal with master control borad；It is of course also possible to using the infrared sensor with wireless transmission function, exist accordingly
Wireless receiving end is installed on electric heater, then transmitted the induced signal received to master control borad, arrangement by wireless receiving end
Several infrared sensors are in each corner in bathroom, if master control borad can be wirelessly sent to by detecting human body, main
Control plate discriminates whether to send cut-offing instruction to earth leakage protective device according to the induced signal received.This mode human body sensing is not
Influenceed by electric heater installation site, reliability is higher.
The operation principle of stepper motor is described as follows in the prior art：Stepping motor is that one kind changes electric impulse signal
Into angular displacement or the electromechanical compo of displacement of the lines；The input quantity of stepping motor is pulse train, and output quantity is then corresponding increment
Displacement or step motion.In the case of proper motion, its each rotation (360 degree of rotations) has fixed step number；Do continuous stepping
During motion, the frequency of its rotary rpm and input pulse keeps strict corresponding relation, is not changed by voltage pulsation and load
Influence, single-chip microcomputer can control the anglec of rotation of stepper motor by sending the pulse signal of fixed time sequence and frequency；Due to existing
In technology, due to fixing the position of infrared sensor during actual use, so if needing comprehensive detection to detect
, it is necessary to install multiple infrared sensors during human body signal in region, it is unfavorable for execute-in-place, and cost is higher；And pass through
Infrared sensor is fixed in the rotary shaft of stepper motor, infrared sensor can be turned with the rotation of stepper motor
It is dynamic, so as to detect in whole search coverage whether there is human body signal；Exemplary, the stepping electricity as shown in Fig. 5-a and Fig. 5-b
Machine is fixed on metope when mounted, and rotary shaft is upwardly or downwardly so as to realize the comprehensive detection to search coverage.
Specifically, infrared sensor includes：Pyroelectric infrared sensor；Pyroelectric infrared sensor, for obtaining detection
The signal sensed in region, and the signal sensed is sent to master control borad；Master control borad, specifically for being passed when rpyroelectric infrared
When the number of times that the signal that sensor is sensed occurs in preset time is more than preset value, sends power-off to earth leakage protective device and refer to
Order.
It should be noted that the operation principle of pyroelectric infrared sensor is described as follows in actual application：Human body is all
There is constant body temperature, typically at 37 degree, specific wavelength 10um or so infrared ray can be sent, pyroelectric infrared transducer is exactly by visiting
Survey the 10um of human-body emitting or so infrared ray and be operated；By luxuriant and rich with fragrance mud, you filter the 10um of human-body emitting or so infrared ray
Gathered after mating plate enhancing on infrared induction source, infrared induction source generally uses pyroelectricity element, this element is receiving people
Body infrared radiation temperature will lose charge balance when changing, and outwards discharge electric charge, subsequent conditioning circuit handle after testing after just
Alarm signal can be produced；Because pyroelectric infrared sensor is to detect human body radiation as target, so pyroelectricity element pair
Wavelength is that 10UM or so infra-red radiation is very sensitive；In order to only to the sensitive for infrared radiation of human body, be shown up in its radiation
Special luxuriant and rich with fragrance mud that optical filter is typically covered with, makes the interference of environment by obvious control action；Wherein, rpyroelectric infrared is passed
Sensor is popped one's head in, and its sensor includes the pyroelectricity member of two mutual serial or parallel connections；And two electric polarization directions being made are just
It is good almost to there is identical to act on the contrary, element is released two heat in ambient background radiation, it is produced release effect and cancel out each other,
Then detector no signal is exported；And once in people's intrusion detection region, human infrared radiation is focused on by partial mirror, and by
Pyroelectricity member is received, but the heat that two panels pyroelectricity member is received is different, and pyroelectricity is also different, it is impossible to offset, at signal
Manage and alarm.According to the luxuriant and rich with fragrance mud of the use requirement of different clients, your optical filter is different according to performance requirement, with different focal length (senses
Should be apart from), so as to produce different monitoring visual fields, visual field is more, controls tighter；Only when in search coverage temperature change
When pyroelectric infrared sensor could detect and obtain.
Due to pyroelectric infrared sensor can only work as temperature is changed in search coverage when pyroelectric infrared sensor ability
Detection obtains signal, and pyroelectric infrared sensor is fixed on stepper motor because stepper motor is in rotation；Therefore,
If detect someone in search coverage, when earth leakage protective device is switched off civil power, the probability of erroneous judgement is larger；Accordingly, it would be desirable to
When master control borad judges that the number of times occurred in preset time is more than preset value, cut-offing instruction is sent to earth leakage protective device；So that
The power-off of earth leakage protective device is more accurate.
Specifically, infrared sensor includes：Matrix form infrared sensor；Matrix form infrared sensor, for obtaining detection
The signal sensed in region, and the signal sensed is sent to master control borad；Master control borad, specifically for when the infrared biography of matrix form
When the number of times that the signal that sensor is sensed occurs in preset time is more than preset value, sends power-off to earth leakage protective device and refer to
Order.
It should be noted that the operation principle of matrix form infrared sensor is described as follows in the prior art：Matrix form is infrared
The detectable radiations heat energy of silicon lens on sensor, the infra-red radiation that human body is sent can be collected by silicon lens and produce electromotive force,
Analog circuit on matrix form infrared sensor can amplify the electromotive force and be compared with ambient temperature, can calculate and be visited
The temperature distribution state in region is surveyed, I can be passed through afterwards2C bus outputting measurement values；It can be selected according to different usage scenario batteries
With 8 × 8 or 16 × 16 or even 32 × 32 matrix form infrared sensor.
Exemplary, as shown in fig. 6, giving the operating diagram of the matrix form infrared sensor of one kind 4 × 4, specifically
Implementation is as follows：
Battery body surface temperature is if it exceeds absolute zero is that can give off electromagnetic wave, with temperature change, electromagnetic wave
Radiation intensity also change therewith with wavelength diffusion properties, electromagnetic wave of the wavelength between 0.75 μm to 1000 μm is referred to as " infrared
Line ", and human vision visible " visible ray " is between 0.4 μm to 0.75 μm.Infrared ray, can be by air group when earth's surface is transmitted
Into material (particularly H2O、CO2、CH4、N2O、O3Deng) absorption, intensity is decreased obviously, only μ~5 μm of shortwave 3 and long wave 8~
12 μm of two wave bands have preferable penetrance (Transmission), are generally called atmospheric window (Atmospheric window),
Most thermal infrared imager is detected aiming at the two wave bands, and the surface temperature distribution of object is calculated and be shown.This
Outside, because infrared ray is to the solid of very big part and the penetration capacity extreme difference of liquid substance, thus infrared thermal imaging detection be with
Based on the infrared radiation energy for measuring body surface.
Matrix form infrared sensor can be divided into search coverage 4 × 4, and totally 16 regions are detected, and can be detected simultaneously
Detailed temperature in each region.As shown in fig. 6, matrix form infrared sensor can detect P0~P15 totally 16 measurement zones simultaneously
The temperature in domain, and I can be passed through2Measurement result is sent to control end by C buses.Because infrared penetration ability is very weak, if people wears
Clothes, then it is higher to detect the portion temperatures such as the aerial head of exposure, hand, pin, is wrapped in the portion temperature in clothes
Relatively low, so i.e. detectable people has worn clothes, is not having a bath；If detecting the high temp objects for leveling off to vertical configuration, such as
Human body signal is detected in detection zone P1, P2, P5, P6, P9, P10, P13 and P14, then can determine whether that someone stands
Bathing in bathroom；Similarly, if detecting one levels off to horizontal high temp objects, such as detection zone P12, P13, P14 with
And detect human body signal in P15, and duration of human body signal is when being more than preset value, then can determine whether that someone falls and exist
In bathroom；Because matrix form infrared sensor can detect the form and the actual temp of heating of thermal objects, it can be used to detect people
The posture and body temperature of body；Therefore, if matrix form infrared sensor detects human body and lies on the floor transfixion for a long time,
Master control borad can send prompting by other suggestion devices, indicate that possible someone may fall in a swoon in search coverage；Or, its
In his Auxiliary Functioning Unit include radio communication device, then master control borad can be will be prompted to by radio communication device information send to
On the user equipment of user；In addition, the induced signal that master control borad can also be sent according to matrix form infrared sensor, judges detection
Whether body temperature in region is more than setting value, when more than setting value, then it is assumed that body temperature is higher and sends health and carries
Show.
Because the induced signal that matrix form infrared sensor is detected compares the induced signal of pyroelectric infrared sensor more
Plus it is accurate, the scope of detection is smaller；It therefore, it can more accurately detect the human body signal in search coverage, and then master control borad
Accuracy rate when judging whether to occur cut-offing instruction is higher, lifts the experience of user.
Specifically, infrared sensor includes：Pyroelectric infrared sensor and matrix form infrared sensor, wherein, matrix form
The search coverage of infrared sensor is located in pyroelectric infrared sensor search coverage；Pyroelectric infrared sensor, for obtaining
The first signal sensed in search coverage, and the first signal sensed is sent to master control borad；Matrix form infrared sensor,
The secondary signal sensed for obtaining in search coverage, and the secondary signal sensed is sent to master control borad；Master control borad, tool
Body is used for when the number of times that the first signal that pyroelectric infrared sensor is obtained occurs in preset time is more than or equal to preset value,
The current state of human body is determined according to the secondary signal that matrix form infrared sensor is obtained, when it is determined that the current state of human body is station
During vertical or recumbency state, cut-offing instruction is sent to earth leakage protective device.
Specifically, master control borad, be additionally operable to sense when pyroelectric infrared sensor signal occurs in preset time
When number of times is less than or equal to preset value, existing parameter operation is kept；
Or
Master control borad, the number of times that signal occurs in preset time for being additionally operable to sense when matrix form infrared sensor is less than
During equal to preset value, existing parameter operation is kept.
It should be noted that in actual application, pyroelectric infrared sensor with matrix form infrared sensor simultaneously
On stepper motor, the investigative range of pyroelectric infrared sensor and matrix form infrared sensor can be with stepper motor
The anglec of rotation changes and changed.Only have 45 ° by the detection range of matrix form infrared sensor, thus during detection human body,
Stepper motor is with 45 ° for eight regions of a region scan round, and pyroelectric infrared sensor is synchronous with matrix form infrared sensor
Whether detection has human body in corresponding region, you can carry out comprehensive scanning to human body；Due to the detection of pyroelectric infrared sensor
Scope is up to 100 °, much larger than the investigative range of matrix form infrared sensor, therefore the detecting area of matrix form infrared sensor
Domain needs in the search coverage of pyroelectric infrared sensor, judge in search coverage whether someone when, rpyroelectric infrared
Sensor cooperates with matrix form infrared sensor so that, Jin Erti more accurate to the human testing in search coverage
High master control borad sends the accuracy of cut-offing instruction.
Household electrical appliance provided in an embodiment of the present invention, by setting output voltage to be the standby of the direct current less than or equal to 36V
With power supply, when the sensing result for the human body sensing device that master control borad is received meets cut-out civil power condition, to earth leakage protective device
Send cut-offing instruction；Circuit switching device switches to stand-by power supply path, now there is standby electricity when mains-supplied path is powered off
Source powers for master control borad, because other Auxiliary Functioning Units are connected with master control borad；Therefore, disconnected and city in earth leakage protective device
During the connection of plug, master control borad still can normally be run with other Auxiliary Functioning Units；Rather than leaking electricity in the prior art
Protector has cut off the connection of water heater and civil power, but is due to that corresponding display device and control section can not on water heater
Use；Secondly as the output voltage of stand-by power supply is direct current less than or equal to 36V, even if not occurring electric leakage to human body also not
Infringement can be produced；Therefore the connection that although earth leakage protective device in the prior art has cut off water heater and civil power is solved, but by
The problem of corresponding display device on water heater and control section can not be used.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of household electrical appliance, it is characterised in that including：Master control borad, and the miscellaneous function portion powered by the master control borad
Part；
The earth leakage protective device between mains plug and the master control borad is connected to, to be configured to the civil power that the master control borad is powered
Supply access；
The chargeable stand-by power supply between the earth leakage protective device and the master control borad is connected to, to be configured to the master control
The stand-by power supply path that plate is powered, the output voltage of the stand-by power supply is the direct current less than or equal to 36V；
It is connected to the circuit switching device between the mains-supplied path, the stand-by power supply path and the master control borad；
The human body detection device being connected with the master control borad；
Wherein, the master control borad is cut for receiving the induced signal of the human body sensing device, and meeting in the induced signal
During electric condition of cutting off market, cut-offing instruction is sent to the earth leakage protective device；The circuit switching device is logical in the mains-supplied
When road is powered off, the stand-by power supply path is switched to.
2. household electrical appliance according to claim 1, it is characterised in that the Auxiliary Functioning Unit includes：Water temperature detection dress
Put, at least one in display device and key device.
3. household electrical appliance according to claim 1, it is characterised in that the chargeable stand-by power supply includes：Charging control
Circuit processed, battery and boost control circuit；Wherein, the battery connects the charging control circuit and boosting rectifier control electricity
Road, the charging control circuit connects the earth leakage protective device, and the boost control circuit connects the circuit switching device；
The charging control circuit, for when the electricity of the battery is less than default electricity, being charged to the battery；When
When the electricity of the battery is more than or equal to default electricity, floating charge is carried out to the battery；
The boost control circuit, for the stable driving voltage in the master control borad of electric signal for exporting the battery.
4. household electrical appliance according to claim 3, it is characterised in that the stand-by power supply also includes：Electric quantity detecting circuit,
The electric quantity detecting circuit is connected with the battery and the master control borad；
The electric quantity detecting circuit, for detecting that the remaining charging interval or socking out time of the battery are sent to described
Master control borad；
The master control borad, be additionally operable to according to the electric power detection module send the battery the remaining charging interval or residue
Discharge time, the display device in the household electrical appliance is controlled to show the remaining charging interval of the battery.
5. household electrical appliance according to claim 3, it is characterised in that the battery includes:Chargeable lithium ion battery
Or battery.
6. household electrical appliance according to claim 1, it is characterised in that the human body detection device includes：Stepper motor, with
And the infrared sensor in the rotary shaft of the stepper motor；
Wherein, the stepper motor is connected with the master control borad, for receiving the control signal that the master control borad is sent；
The infrared sensor is connected with the master control borad, for the signal sensed to be sent to the master control borad.
7. household electrical appliance according to claim 6, it is characterised in that the infrared sensor includes：Rpyroelectric infrared is passed
Sensor；
The pyroelectric infrared sensor, the signal sensed for obtaining in search coverage, and the signal sensed is sent
To the master control borad；
The master control borad, specifically for when the signal that the pyroelectric infrared sensor is sensed occur in preset time time
When number is more than preset value, cut-offing instruction is sent to the earth leakage protective device.
8. household electrical appliance according to claim 6, it is characterised in that the infrared sensor includes：The infrared biography of matrix form
Sensor；
The matrix form infrared sensor, the signal sensed for obtaining in search coverage, and the signal sensed is sent
To the master control borad；
The master control borad, specifically for when the signal that the matrix form infrared sensor is sensed occur in preset time time
When number is more than preset value, cut-offing instruction is sent to the earth leakage protective device.
9. household electrical appliance according to claim 6, it is characterised in that the infrared sensor includes：Rpyroelectric infrared is passed
Sensor and matrix form infrared sensor, wherein, the search coverage of the matrix form infrared sensor is located at the rpyroelectric infrared
In sensor detection areas；
The pyroelectric infrared sensor, the first signal sensed for obtaining in search coverage, and by sense first
Signal is sent to the master control borad；
The matrix form infrared sensor, the secondary signal sensed for obtaining in search coverage, and by sense second
Signal is sent to the master control borad；
The master control borad, specifically for going out when first signal that the pyroelectric infrared sensor is obtained in preset time
When existing number of times is more than or equal to preset value, the secondary signal obtained according to the matrix form infrared sensor determines that human body is worked as
Preceding state, when it is determined that the current state of human body is standing or recumbency state, sends power-off to the earth leakage protective device and refers to
Order.
10. household electrical appliance according to claim 1, it is characterised in that the master control borad, are additionally operable to described standby when receiving
During signal enabled with supply access, the instruction of energy saver mode is transmitted into the Auxiliary Functioning Unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710393149.4A CN106989518A (en) | 2017-05-27 | 2017-05-27 | A kind of household electrical appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710393149.4A CN106989518A (en) | 2017-05-27 | 2017-05-27 | A kind of household electrical appliance |
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| CN106989518A true CN106989518A (en) | 2017-07-28 |
Family
ID=59420972
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| CN107910851A (en) * | 2017-11-28 | 2018-04-13 | 乐清市诚富电器科技有限公司 | A kind of intelligence self generation type water outlet circuit breaking controlling method |
| CN110044074A (en) * | 2019-03-29 | 2019-07-23 | 佛山市云米电器科技有限公司 | A kind of intelligent water heater and its control method and system |
| CN111371094A (en) * | 2020-04-22 | 2020-07-03 | 深圳创维－Rgb电子有限公司 | Double-power-supply system and television |
| CN112524790A (en) * | 2020-12-15 | 2021-03-19 | 陕西科技大学 | Intelligent electric water heater and safety early warning method based on same |
| WO2023241056A1 (en) * | 2022-06-13 | 2023-12-21 | 青岛海尔空调器有限总公司 | Air conditioner control method and apparatus, and device and storage medium |
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Application publication date: 20170728 |
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