CN107874625A - Heating container control circuit, heating container control method and coffee machine - Google Patents
Heating container control circuit, heating container control method and coffee machine Download PDFInfo
- Publication number
- CN107874625A CN107874625A CN201610863981.1A CN201610863981A CN107874625A CN 107874625 A CN107874625 A CN 107874625A CN 201610863981 A CN201610863981 A CN 201610863981A CN 107874625 A CN107874625 A CN 107874625A
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- heating
- container
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- heating element
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000009841 combustion method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000008236 heating water Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 101000860173 Myxococcus xanthus C-factor Proteins 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/56—Water boiling vessels in beverage making machines having water-level controls; having temperature controls
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/58—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention provides a heating container control circuit, a heating container control method and a coffee machine. The heating container control circuit comprises a relay (1), a temperature controller (2), a heating element (3), a controller (4) and a detection circuit (5); the first end of the detection circuit (5) is connected between the temperature controller (2) and the heating element (3), the second end of the detection circuit (5) is connected with the signal input end (41) of the controller (4), and the first output end (42) of the controller (4) is connected with the relay; the detection circuit (5) is used for detecting a voltage signal of a circuit between the temperature controller (2) and the heating element (3) and transmitting the voltage signal to the controller (4), and the controller (4) is used for controlling the relay (1) to cut off the power supply of the heating element (3) when the voltage signal detected by the detection circuit (5) is abnormal. The invention can stop heating when the temperature controller works abnormally, thereby improving the safety performance.
Description
Technical field
The present invention relates to household appliance technical field, more particularly to a kind of heating control circuit for container, heating container control method
And coffee machine.
Background technology
Life is worked as the novel kitchen such as continuous development, the coffee machine electrical equipment of science and technology has more and more appeared in people
In.
At present, the kitchen appliance such as coffee machine is internally provided with water tank and the heating element heater heated for Water in Water Tanks, water
After water in case is boiled, it can be used for making coffee or other drinks.In order to prevent the water dry combustion method in water tank, in coffee machine
Temperature controller is provided with, when dry combustion method occurs in Water in Water Tanks, temperature can be raised rapidly, after now temperature controller detects higher temperature,
Meeting control circuit disconnects, and heating element heater is stopped heating.
However, occur incrustation scale in the water tank, or when temperature controller breaks down, temperature controller may frequently jump disconnected or not
Jump and break, cause complete machine operation irregularity, or even produce potential safety hazard.
The content of the invention
The present invention provides a kind of heating control circuit for container, heating container control method and coffee machine, can be in temperature controller
Stop heating during operation irregularity, improve security performance.
The present invention provides a kind of heating control circuit for container, including relay, temperature controller, heating element heater, controller and inspection
Slowdown monitoring circuit；
Temperature controller, heating element heater and relay are connected with power sources in series, and the first end for detecting circuit is connected to temperature controller
Between heating element heater, detect circuit the second end and controller signal input part connect, the first output end of controller and
Relay connects；
Detection circuit is used for the voltage signal for detecting the circuit between temperature controller and heating element heater, and voltage signal is conveyed
To controller, controller is used for when detecting the voltage signal exception detected by circuit, and control relay disconnects heating element heater
Power supply.So when dry combustion method in heating container or temperature controller operation irregularity, then control relay is jumped disconnected, so as to disconnect heating
For the power supply of element to stop heating, security is higher.
Optionally, heating control circuit for container also includes alarm；Alarm connects with the second output end of controller, report
Alert device is used to send alarm when detecting the voltage signal exception detected by circuit.It can so be carried in temperature controller operation irregularity
Awake user pays attention to.
Optionally, detection circuit includes divider resistance and filter capacitor；The first end of divider resistance be connected to temperature controller with
Between heating element heater, the second end of divider resistance is connected with detecting the first end of circuit；The first end of filter capacitor and detection electricity
The first end connection on road, the second end ground connection of filter capacitor.
Optionally, alarm includes buzzer and/or indicator lamp.A variety of not Tongfangs such as sound and optical signal can so be passed through
Formula reminds user.
Optionally, the voltage signal of the circuit between temperature controller and heating element heater is square-wave signal.
Optionally, heating element heater is heat-generating pipe.
Optionally, relay and controller are arranged in control board.It can so improve inside heating container and be
System integrated level.
On the other hand, the present invention provides a kind of coffee machine, including water tank and heating container described as described above control electricity
Road, heat the heating element heater in control circuit for container and be used to be heated for the liquid in water tank.
On the other hand, the present invention provides a kind of heating container control method, including：
According to preset time threshold, judge whether the voltage signal for heating circuit where temperature controller in container is abnormal；Work as electricity
When pressing abnormal signal, the heating element heater in control heating container stops heating.Temperature controller in heating container can so be detected
Working condition, and in temperature controller working condition exception stop heating, avoid potential safety hazard.
Optionally, when voltage signal exception, heating container control method also includes control alarm and sends alarm.So
It may remind the user that attention.
The construction of the present invention and its other goals of the invention and beneficial effect will be in conjunction with the accompanying drawings to preferred real
Apply the description of example and more obvious understandable.
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 required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the operation principle schematic diagram for the heating control circuit for container that the embodiment of the present invention one provides；
Fig. 2 is the detailed construction schematic diagram for the heating control circuit for container that the embodiment of the present invention one provides；
Fig. 3 is the schematic flow sheet for the heating container control method that the embodiment of the present invention three provides.
Description of reference numerals：
1-relay；2-temperature controller；3-heating element heater；4-controller；5-detection circuit；6-alarm；7-control
Circuit board processed；61-buzzer；62-indicator lamp；
R1-first resistor；R2-second resistance；R3-3rd resistor；The resistance of R4-the 4th；C1-filter capacitor.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the operation principle schematic diagram for the heating control circuit for container that the embodiment of the present invention one provides.Fig. 2 is the present invention
The detailed construction schematic diagram for the heating control circuit for container that embodiment one provides.As depicted in figs. 1 and 2, the present embodiment provides
Heat control circuit for container, including relay 1, temperature controller 2, heating element heater 3, controller 4 and detection circuit 5.
Temperature controller 2, heating element heater 3 and relay 1 are connected with power sources in series, and the first end of detection circuit 5 is connected to temperature
To control between device 2 and heating element heater 3, the second end of detection circuit 5 is connected with the signal input part 41 of controller 4, and the of controller 4
One output end 42 and relay 1 connect.
Detection circuit 5 is used for the voltage signal for detecting circuit between temperature controller 2 and heating element heater 3, and by voltage signal
Controller 4 is conveyed to, controller 4 is used for when detecting the voltage signal exception detected by circuit 5, and control relay 1 disconnects
The power supply of heating element heater 3.
Specifically, the heating container in the present invention, it may include but it is not limited to the conventional household electric such as coffee machine, electric kettle
Device, this is specifically described exemplified by sentencing coffee machine.In container is heated, temperature controller 2, heating element heater 3 and relay 1 and electricity
Source-series connection, together constitute main heater circuit.Heating element heater 3 generally can be in the containers such as the water tank in heating container
Water or other liquid heated, and temperature controller 2 is then when sensing that temperature is too high (be, for example, 115 DEG C), can disconnect automatically,
Ensure that heating element heater 3 will not dryout the water in water tank or other liquid.In general, heating element heater 3 are heat-generating pipe, and heat-generating pipe leads to
After electricity, because self-resistance is larger, amount of heat can be produced, the liquid in heating water tank.
Exemplified by avoid because in water tank incrustation scale influence, or the faults itself of temperature controller 2 and cause temperature controller 2 it is intermittent frequently
Jump disconnected or do not jump for a long time disconnected, detection circuit 5 and controller 4, detection electricity are also included in the control circuit of heating container
Road 5 can judge that it is whether normal that temperature controller 2 works by detecting the voltage signal of circuit between temperature controller 2 and heating element heater 3,
For example, when (being, for example, less than 30 seconds) the i.e. tripping within the very short time that is powered of temperature controller 2, or when frequently jumping disconnected and closure and connecting,
May there is no water, or the working condition of temperature controller 2 exception in explainable water tank, now, corresponding voltage signal can also present different
Normal waveform.It is disconnected whether controller 4 can jump come control relay 1 extremely according to voltage signal.When voltage signal is abnormal,
Then control relay 1 is jumped disconnected, so as to disconnect the power supply of heating element heater 3, stops heating.
Generally, the voltage signal of the circuit between temperature controller 2 and heating element heater 3 is generally square-wave signal, square-wave signal tool
There is fixed frequency, when temperature controller 2, which is jumped, to break, square-wave signal can be changed into low level signal, and detection circuit 5 can be believed by voltage
Number low and high level state judged.
In addition, optional, for the call user's attention in 2 operation irregularity of temperature controller, heating control circuit for container may be used also
To include alarm 6；Second output end 43 of alarm 6 and controller 4 connects, and alarm 6 can be used in detection circuit 5
Alarm is sent during detected voltage signal exception.Alarm 6 includes the one or more in buzzer 61 and indicator lamp 62,
User can be reminded by multitude of different ways such as sound and optical signals.
In order to ensure the Stability and veracity of the voltage signal detected, detection circuit 5 includes divider resistance and filtering
Electric capacity C1；The first end of divider resistance is connected between temperature controller 2 and heating element heater 3, the second end and the detection electricity of divider resistance
The first end connection on road 5；Filter capacitor C1 first end is connected with detecting the first end of circuit 5, filter capacitor C1 the second end
Ground connection.Divider resistance specifically may include the first resistor R1, second resistance R2 and the 4th resistance R4 to be connected with controller 4, and
The 3rd resistor R3 in parallel with controller 4, divider resistance can reduce the voltage at the pin of controller 4, to meet that controller 4 is managed
The voltage request of pin, such as wherein R1=R2=510K ohms, R3=30K ohms, R4=4.7K ohms.And filter capacitor C1 energy
It is enough that electric current in circuit is filtered, ensure that the voltage signal in detection circuit 5 has good waveform.
Optionally, relay 1 and controller 4 are arranged at same circuit board, e.g. in control board 7, to carry
The degree of being internally integrated of height heating control circuit for container.
In the present embodiment, heating control circuit for container includes relay, temperature controller, heating element heater, controller and detection electricity
Road；Temperature controller, heating element heater and relay are connected with power sources in series, and the first end for detecting circuit is connected to temperature controller and heating
Between element, detect the second end of circuit and the input of controller connects, the first output end of controller connects with relay；
Detection circuit is used for the voltage signal for detecting the circuit between temperature controller and heating element heater, and voltage signal is conveyed into control
Device, controller are used for when detecting the voltage signal exception detected by circuit, and control relay disconnects the power supply of heating element heater.
It can so ensure to stop heating in temperature controller working condition exception, avoid potential safety hazard.
In addition, the embodiment of the present invention two also provides a kind of coffee machine, including water tank and adding as described in above-mentioned embodiment one
Heat container control circuit, heat the heating element heater in control circuit for container and be used to be heated for the liquid in water tank.So may be used
With liquid such as the water in heating water tank, and the drinking production processes such as follow-up coffee are carried out using hot water.Wherein, container control is heated
The structure and operation principle of circuit processed have been described in detail in the aforementioned embodiment, and here is omitted.
In the present embodiment, coffee machine includes water tank and heating control circuit for container, wherein, heat control circuit for container bag
Include relay, temperature controller, heating element heater, controller and detection circuit；Temperature controller, heating element heater and relay are and power sources in series
Connection, the first end for detecting circuit is connected between temperature controller and heating element heater, detect circuit the second end and controller it is defeated
Enter end connection, the first output end of controller connects with relay；Detection circuit is used to detect between temperature controller and heating element heater
Circuit voltage signal, and voltage signal is conveyed to controller, controller is used in the voltage detected by detection circuit
During abnormal signal, control relay disconnects the power supply of heating element heater.The temperature controller work shape in coffee machine can so be ensured
Stop heating during state exception, avoid potential safety hazard.
Fig. 3 is the schematic flow sheet for the heating container control method that the embodiment of the present invention three provides.Carried in the present embodiment
The heating container control method of confession, go for the heating control circuit for container in previous embodiment one, and embodiment two
In the household kitchen electric appliance such as coffee machine.As shown in figure 3, the heating container control method that the present embodiment provides specifically includes：
S101, according to preset time threshold, judge whether the voltage signal for heating circuit where temperature controller in container abnormal；
Specifically, default time threshold can be set according to the specific heated condition of heating container, such as one
As in heating, temperature controller reaches certain value in temperature, is closed communicating state, now, voltage at for example, less than 115 DEG C
Signal is square-wave signal；And temperature is when reaching more than 115 DEG C, temperature controller can jump disconnected, and voltage signal is reduced to low level.Typically
Because the conventional heating time is a few minutes in heating container, so the voltage signal of temperature controller typically remains square wave in heating
Signal, and switch to low level signal after a few minutes, so under normal condition, voltage signal is typically believed for square wave in minutes
Number, and switch to low level signal after a few minutes；And when water tank has incrustation scale, cause line clogging, be anhydrous state in water tank
When, may be after heating very short time (generally 30 seconds or so), the i.e. generation jump of temperature controller is disconnected, and now voltage signal is i.e. by square wave
Signal switchs to low level signal；May be square-wave signal in some time when temperature controller breaks down.Thus, you can
Conclude that voltage signal is normal or abnormal according to default time threshold.When voltage signal is in too short time threshold
Within change, or voltage signal is maintained in the time threshold of some time when not changing, and voltage signal is abnormal letter
Number.
S102, when voltage signal exception, control heating container in heating element heater stop heating.
When voltage signal is abnormal signal, you can control heating element heater stop heating, with avoid heat container dry combustion method or
There are other potential safety hazards.
In addition, optional, when voltage signal exception, this method also includes control alarm and sends alarm, so that user
Learn the abnormality of heating container.
In the present embodiment, heating container control method is specifically included according to preset time threshold, judges to heat container medium temperature
Whether the voltage signal of circuit where controlling device is abnormal；Again when voltage signal exception, the heating element heater in control heating container stops
Only heat.The working condition of temperature controller in heating container can be so detected, and is stopped in temperature controller working condition exception
Heating and alarm, avoid potential safety hazard.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. one kind heating control circuit for container, it is characterised in that including relay (1), temperature controller (2), heating element heater (3), control
Device (4) processed and detection circuit (5)；
The temperature controller (2), the heating element heater (3) and the relay (1) are connected with power sources in series, the detection circuit
(5) first end is connected between the temperature controller (2) and the heating element heater (3), it is described detection circuit (5) the second end with
Signal input part (41) connection of the controller (4), the first output end (42) of the controller (4) and the relay connect
Connect；
The detection circuit (5) is used for the voltage letter for detecting the circuit between the temperature controller (2) and the heating element heater (3)
Number, and the voltage signal is conveyed to the controller (4), the controller (4) is used to be examined in the detection circuit (5)
During the voltage signal exception measured, the relay (1) is controlled to disconnect the power supply of the heating element heater (3).
2. heating control circuit for container according to claim 1, it is characterised in that also include：Alarm (6)；The report
Alert device (6) and the second output end (43) connection of the controller (4), the alarm (6) are used in the detection circuit (5)
Alarm is sent during detected voltage signal exception.
3. heating control circuit for container according to claim 1, it is characterised in that the detection circuit (5) includes partial pressure
Resistance and filter capacitor；The first end of the divider resistance is connected between the temperature controller (2) and the heating element heater (3),
Second end of the divider resistance is connected with the first end of the detection circuit (5)；The first end of the filter capacitor with it is described
Detect the first end connection of circuit (5), the second end ground connection of the filter capacitor.
4. heating control circuit for container according to claim 2, it is characterised in that the alarm (6) includes buzzer
And/or indicator lamp (62) (61).
5. according to the heating control circuit for container described in claim any one of 1-4, it is characterised in that the temperature controller (2) and
The voltage signal of circuit between the heating element heater (3) is square-wave signal.
6. according to the heating control circuit for container described in claim any one of 1-4, it is characterised in that the heating element heater (3)
For heat-generating pipe.
7. according to the heating control circuit for container described in claim any one of 1-4, it is characterised in that the relay (1) and
The controller (4) is arranged in control board (7).
A kind of 8. coffee machine, it is characterised in that the heating container control electricity including water tank and as described in claim any one of 1-7
Road, the heating element heater heated in control circuit for container are used to be heated for the liquid in the water tank.
9. one kind heating container control method, it is characterised in that including：
According to preset time threshold, judge whether the voltage signal for heating circuit where temperature controller in container is abnormal；
When the voltage signal exception, the heating element heater in the heating container is controlled to stop heating.
10. heating container control method according to claim 9, it is characterised in that when the voltage signal exception, also
Including：Control alarm sends alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863981.1A CN107874625B (en) | 2016-09-29 | 2016-09-29 | Heating container control circuit, heating container control method and coffee machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610863981.1A CN107874625B (en) | 2016-09-29 | 2016-09-29 | Heating container control circuit, heating container control method and coffee machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107874625A true CN107874625A (en) | 2018-04-06 |
| CN107874625B CN107874625B (en) | 2020-05-05 |
Family
ID=61768806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610863981.1A Active CN107874625B (en) | 2016-09-29 | 2016-09-29 | Heating container control circuit, heating container control method and coffee machine |
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| Country | Link |
|---|---|
| CN (1) | CN107874625B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108814493A (en) * | 2018-06-06 | 2018-11-16 | 九阳股份有限公司 | A kind of dish-washing machine of anti-dry |
| CN109028256A (en) * | 2018-07-16 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating equipment and control device and method thereof |
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| CN2633156Y (en) * | 2003-08-06 | 2004-08-18 | 邵志成 | Electric liquid heater with alarm |
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| CN104053254A (en) * | 2014-07-03 | 2014-09-17 | 珠海格力电器股份有限公司 | Electric heating protection circuit and protection method |
| CN203935051U (en) * | 2014-04-03 | 2014-11-12 | 浙江绍兴苏泊尔生活电器有限公司 | Heating circuit for soybean milk machine |
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| CN105589382A (en) * | 2015-12-22 | 2016-05-18 | 江阴市辉龙电热电器有限公司 | Heater alarm and control module |
| CN205304230U (en) * | 2015-12-30 | 2016-06-08 | 芜湖美智空调设备有限公司 | Contactor protection control circuit and air conditioning equipment |
| CN105768887A (en) * | 2014-12-25 | 2016-07-20 | 原秀科技（重庆）有限公司 | Intelligent energy-saving water dispenser |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2633156Y (en) * | 2003-08-06 | 2004-08-18 | 邵志成 | Electric liquid heater with alarm |
| CN1953621A (en) * | 2006-11-03 | 2007-04-25 | 程三望 | A temperature controller of electric heating pot |
| CN203935051U (en) * | 2014-04-03 | 2014-11-12 | 浙江绍兴苏泊尔生活电器有限公司 | Heating circuit for soybean milk machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108814493A (en) * | 2018-06-06 | 2018-11-16 | 九阳股份有限公司 | A kind of dish-washing machine of anti-dry |
| CN109028256A (en) * | 2018-07-16 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating equipment and control device and method thereof |
| CN109028256B (en) * | 2018-07-16 | 2021-10-01 | 珠海格力电器股份有限公司 | Heating equipment and control device and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107874625B (en) | 2020-05-05 |
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