CN109322856B - Water pump component, outdoor unit and control method of outdoor unit - Google Patents

Water pump component, outdoor unit and control method of outdoor unit Download PDF

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Publication number
CN109322856B
CN109322856B CN201811115708.6A CN201811115708A CN109322856B CN 109322856 B CN109322856 B CN 109322856B CN 201811115708 A CN201811115708 A CN 201811115708A CN 109322856 B CN109322856 B CN 109322856B
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China
Prior art keywords
outdoor unit
heating element
water
water pump
chassis
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CN201811115708.6A
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Chinese (zh)
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CN109322856A (en
Inventor
薛寒冬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201811115708.6A priority Critical patent/CN109322856B/en
Publication of CN109322856A publication Critical patent/CN109322856A/en
Priority to PCT/CN2019/086223 priority patent/WO2020062880A1/en
Application granted granted Critical
Publication of CN109322856B publication Critical patent/CN109322856B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/58Cooling; Heating; Diminishing heat transfer
    • F04D29/586Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/007Details, component parts, or accessories especially adapted for liquid pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/36Drip trays for outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46Component arrangements in separate outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41Defrosting; Preventing freezing
    • F24F11/42Defrosting; Preventing freezing of outdoor units
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22Means for preventing condensation or evacuating condensate
    • F24F13/222Means for preventing condensation or evacuating condensate for evacuating condensate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30Arrangement or mounting of heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention provides a water pump component, an outdoor unit and a control method of the outdoor unit. According to the water pump component, the outdoor unit and the control method of the outdoor unit, the first heating element is arranged, so that the drain pipe of the water pump component can be heated, condensate water in the drain pipe can not be condensed and frozen, the drainage efficiency of the unit is guaranteed, the second heating element is arranged, the condensate water in the water pump component can be heated, the damage of the water pump component caused by the ice of the water pump component is prevented, the third heating element can ensure that the condensate water on the chassis can not be frozen, and can smoothly flow to the water pump component, and further the unit can reliably drain under the condition of over-low environmental temperature (0 ℃ or below), and further the reliability of the unit under the condition of over-low environmental temperature is improved.

Description

Water pump component, outdoor unit and control method of outdoor unit
Technical Field
The invention relates to the technical field of water driving equipment, in particular to a water pump component, an outdoor unit and a control method of the outdoor unit.
Background
The existing water pump component is easily affected by special environments, partial water can be left inside the water pump component when the water pump component suddenly stops working, and when the environmental temperature is lower than zero ℃, the water left in the water pump can be frozen, so that the water pump component cannot work normally.
Disclosure of Invention
In order to solve the technical problem of icing in the water pump component, a water pump component, an outdoor unit and a control method of the outdoor unit, which can ensure reliable water drainage, are provided.
A water pump component comprising a water pump having a water suction port with a second heating element disposed at the water suction port.
The second heating element is an electrothermal module.
The electric heating module is an electric heating belt, and the electric heating belt surrounds the water suction port.
The water pump is provided with a drain pipe, and the side wall of the drain pipe is provided with a first heating element.
The first heating element is an electric heating wire.
The electric heating wire is spirally wound on the drain pipe.
The heating wire is arranged in the pipe wall of the drain pipe.
The water pump component further comprises a temperature sensor, and the temperature sensor is electrically connected with the second heating element.
The water pump component further comprises a chassis, the water pump is arranged on the chassis, and the water pump sucks out condensed water in the chassis.
The base plate is provided with a third heating element, a condensed water flow path is formed on the base plate, and the third heating element is distributed on the base plate along the condensed water flow path.
One end of the condensed water flow path is communicated with a water suction port of the water pump.
A water drain pipe is arranged on the water pump, and a first heating element is arranged on the side wall of the water drain pipe; the water pump component further comprises a chassis, and the water pump is arranged on the chassis; the base plate is provided with a third heating element, a condensed water flow path is formed on the base plate, and the third heating element is distributed on the base plate along the condensed water flow path.
An outdoor unit comprises the water pump component.
The outdoor unit further comprises a liquid level switch, the water pump component further comprises a chassis, the liquid level switch is arranged on the chassis, and the liquid level switch controls the outdoor unit to start and stop.
In the control method of the outdoor unit, the water pump is provided with a water drain pipe, and the side wall of the water drain pipe is provided with a first heating element; the water pump assembly further includes a chassis on which a third heating element is disposed, the control method including:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and b, if the outdoor unit is in a heating mode and t is less than or equal to t0, starting the first heating element, the second heating element and the third heating element.
In the control method of the outdoor unit, the water pump is provided with a water drain pipe, and the side wall of the water drain pipe is provided with a first heating element; the water pump assembly further includes a chassis on which a third heating element is disposed, the control method including:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and c, if t is less than t0, and the outdoor unit enters a heating mode from a stop state, starting the first heating element after starting the second heating element and the third heating element for a first period of time.
In the control method of the outdoor unit, the water pump is provided with a water drain pipe, and the side wall of the water drain pipe is provided with a first heating element; the water pump assembly further includes a chassis on which a third heating element is disposed, the control method including:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and d, if the water quantity of the condensed water of the outdoor unit is lower than the water suction port of the water pump, continuously starting the first heating element.
The value of the preset temperature t0 is 0 ℃.
According to the outdoor unit and the outdoor unit, the water draining pipe of the water pump component can be heated by the first heating element, so that condensate water in the water draining pipe is prevented from condensing and icing, the water draining efficiency of the unit is guaranteed, the condensate water in the water pump component can be heated by the second heating element, the damage of the water pump component caused by icing in the water pump component is prevented, the condensate water on the chassis can be prevented from icing by the third heating element, and the condensate water can smoothly flow to the water pump component, so that the unit can reliably drain under the condition that the environmental temperature is too low (0 ℃ or below), and the reliability of the unit under the condition that the environmental temperature is too low is further improved.
Drawings
Fig. 1 is a schematic diagram of an outdoor unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an outdoor unit and a water pump component of an embodiment of the outdoor unit according to the present invention;
fig. 3 is a schematic structural diagram of a drain pipe of an outdoor unit and an embodiment of the outdoor unit according to the present invention;
fig. 4 is a top view of an outdoor unit and an embodiment of the outdoor unit according to the present invention;
in the figure:
1. a water pump component; 2. a drain pipe; 3. a first heating element; 4. a second heating element; 5. a chassis; 6. a third heating element; 7. and a water sucking port.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
When the ambient temperature is lower than 0 ℃, the outdoor unit is in a heating condition, condensed water is easy to freeze, and the water pump components and the like can be damaged due to the freezing, so that the problem that the outdoor unit cannot discharge water can be solved.
The water pump component shown in fig. 1 to 4 comprises a water pump 1, wherein the water pump 1 is provided with a water suction port, a second heating element 4 is arranged at the water suction port 7, the water pump 1 sucks condensed water generated by an outdoor unit into the water pump 1 through the water suction port 7 and is discharged out of the outdoor unit through a drain pipe 2 of the water pump 1, when the ambient temperature is lower than 0 ℃, if the condensed water in the water pump cannot flow out in time, the water pump 1 can be frozen, when the water pump 1 is restarted, the structure in the water pump 1 can be damaged due to freezing, meanwhile, the second heating element 4 can also ensure that the water pump 1 sucks a part of air when the water quantity does not meet the rated water quantity of the water pump 1 (namely, the condensed water of the outdoor unit cannot fully fill the water suction port 7 of the water pump, so that the condensed water stays in the water suction port 7 and the water pump), and the condensed water in the water pump can be continuously heated, and the condensed water in the water pump 1 can not be frozen.
The second heating element 4 is an electrothermal module, which can be heated by an external power supply or the like supplied to the water pump 1.
The electric heating module is an electric heating belt, the electric heating belt surrounds the water suction port 7, the water suction port 7 and the structure inside the water suction port 7 (such as an impeller of the water pump 1) can be heated by utilizing the heating effect of the electric heating belt, the water at the water suction port 7 is guaranteed to be in a liquid state, and the risk of damage caused by icing does not exist when the water pump 1 is started.
Be provided with drain pipe 2 on the water pump 1, just be provided with first heating element 3 on the lateral wall of drain pipe 2, utilize first heating element 3 can heat drain pipe 2, and then prevent that the comdenstion water in the drain pipe 2 from freezing to guarantee the effective drainage of off-premises station.
The first heating element 3 is an electric heating wire, and the effective heating of the drain pipe 2 is ensured through the heating of the electric heating wire.
The heating wire is spirally wound on the drain pipe 2.
The heating wire is arranged in the pipe wall of the drain pipe 2, so that accidents caused by exposure of the heating wire to the air are prevented.
The water pump component further comprises a temperature sensor, the temperature sensor is electrically connected with the second heating element 4, and the temperature sensor can sense the temperature of condensed water so as to control the working state of the second heating element 4.
The water pump component further comprises a chassis 5, the water pump 1 is arranged on the chassis 5, the water pump 1 sucks out condensed water in the chassis 5, the chassis 5 is used for receiving and collecting condensed water of the outdoor unit, and the condensed water automatically flows to the water pump component 1 by the bottom surface of the chassis 5 through the gravity effect, so that the water pump component 1 can suck the condensed water.
The third heating element 6 is arranged on the chassis 5, a condensed water flow path is formed on the chassis 5, the third heating element 6 is distributed on the chassis 5 along the condensed water flow path, wherein the condensed water flow path is a track or a path for the condensed water in the chassis 5 to flow to the water suction port 7 of the water pump, the third heating element 6 is distributed on the chassis 5 along the condensed water flow path, so that the condensed water on the chassis 5 can smoothly flow to the water suction port 7 of the water pump, and the condensed water can not freeze in the flowing process, thereby ensuring the drainage effect.
One end of the condensed water flow path is communicated with the water suction port 7 of the water pump 1, so that condensed water can be sucked by the water pump 1 and discharged.
An outdoor unit comprises the water pump component.
The outdoor unit further comprises a liquid level switch, the water pump component further comprises a chassis 5, the liquid level switch is arranged on the chassis, the liquid level switch controls the outdoor unit to start and stop, when the water quantity of condensed water in the chassis 5 does not exceed a preset water level, the liquid level switch is in a power-down state, at the moment, the outdoor unit is in a normal heating state, and when the water quantity of condensed water in the chassis 5 exceeds the preset water level, the liquid level switch controls the outdoor unit to stop working, so that the condensed water is stopped, and the problem of water leakage of the chassis is effectively prevented.
In the above method for controlling an outdoor unit, the water pump 1 is provided with a water drain pipe 2, and a first heating element 3 is provided on a side wall of the water drain pipe 2; the water pump assembly further comprises a chassis 5 on which a third heating element 6 is arranged, the control method comprising:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and b, if the outdoor unit is in a heating mode and t is less than or equal to t0, turning on the first heating element 3, the second heating element 4 and the third heating element 6.
In the above method for controlling an outdoor unit, the water pump 1 is provided with a water drain pipe 2, and a first heating element 3 is provided on a side wall of the water drain pipe 2; the water pump assembly further comprises a chassis 5, a third heating element 6 is arranged on the chassis 5, and the control method comprises the following steps:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
step c, if t < t0, and the outdoor unit enters the heating mode from the shutdown state, the first heating element 3 is turned on after the second heating element 4 and the third heating element 6 are turned on for a first period of time.
In the above method for controlling an outdoor unit, the water pump 1 is provided with a water drain pipe 2, and a first heating element 3 is provided on a side wall of the water drain pipe 2; the water pump assembly further comprises a chassis 5, a third heating element 6 is arranged on the chassis 5, and the control method comprises the following steps:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and d, if the outdoor unit is in the heating mode and t is less than t0, continuously starting the first heating element 3 if the condensate water quantity of the outdoor unit is lower than the water suction port 7 of the water pump.
The value of the preset temperature t0 is 0 ℃.
When the outdoor unit heats up the operating mode, when ambient temperature is lower than 0 degree, first heating element 3, second heating element 4 and third heating element 6 all open, and the condensate water that produces on the heat exchanger flows to chassis 5 on, under the effect of third heating element 6, can smoothly flow to the water sucking mouth 7 department of water pump part 1 and can not freeze, under the effect of water pump part 1 and under the heating of first heating element 3, discharge the unit outside.
When the outdoor unit is in a heating working condition and the ambient temperature is lower than 0 ℃, the water pump component 1 is suddenly powered off, water in the water pipe flows back to the chassis 5 under the action of gravity, condensed water generated on the heat exchanger and water originally stored in the chassis 5 are frozen for a long time, and the water suction port 7 and part of impellers of the water pump component 1 are immersed in the water, so that the impellers and the water pump ports are frozen. When the outdoor unit is electrified again, the second heating element 4 and the third heating element 6 of the water pump component 1 are started preferentially, ice around the water pump impeller and the water pump port is melted, meanwhile, a flow path of condensed water is melted on the chassis 5, and then the unit starts the compressor again to work;
when the outdoor unit is in heating working condition and the ambient temperature is lower than 0 ℃, condensed water generated by the heat exchanger is discharged out of the unit under the action of the water pump, and because the condensed water generated by the heat exchanger is more and less, when the water pump pumps the water to be lower than the water suction port 7, the water cannot be pumped away any more, the water pump is always in operation, the water in the water discharge pipe 2 is always kept in the pipe, the water is not discharged or flows back to the chassis 5, under the action of the first heating element 3, heat is continuously supplied to the water in the pipe, and the water in the water discharge pipe 2 is ensured not to be frozen.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims (9)

1. An outdoor unit, characterized in that: the water pump comprises a water pump component, wherein the water pump component comprises a water pump (1), the water pump (1) is provided with a water suction port (7), and a second heating element (4) is arranged at the water suction port (7); a water drain pipe (2) is arranged on the water pump, and a first heating element (3) is arranged on the side wall of the water drain pipe (2); the first heating element (3) is an electric heating wire which is spirally wound on the drain pipe (2); the water pump component further comprises a chassis (5), the water pump (1) is arranged on the chassis (5), and the water pump (1) sucks out water in the chassis (5); a third heating element (6) is arranged on the chassis (5); a water flow path is formed on the chassis (5), and the third heating elements (6) are distributed on the chassis (5) along the water flow path;
if the temperature t of the environment where the outdoor unit is located is less than a preset temperature t0, and the outdoor unit enters a heating mode from a stop state, the second heating element (4) and the third heating element (6) are started, and the first heating element (3) is started after a first time period is continued;
or if the outdoor unit is in a heating mode and the temperature t of the environment where the outdoor unit is located is less than the preset temperature t0, and the amount of condensed water of the outdoor unit is lower than the water suction port (7) of the water pump, continuously starting the first heating element (3).
2. The outdoor unit of claim 1, wherein: the second heating element (4) is an electrothermal module.
3. The outdoor unit of claim 1, wherein: the second heating element (4) surrounds the water suction port (7).
4. The outdoor unit of claim 1, wherein: the water pump component further comprises a temperature sensor, and the temperature sensor is electrically connected with the second heating element (4).
5. The outdoor unit of claim 1, wherein: the outdoor unit further comprises a liquid level switch, the water pump component further comprises a chassis (5), the liquid level switch is arranged on the chassis (5), and the liquid level switch controls the outdoor unit to start and stop.
6. A control method of an outdoor unit according to claim 1, wherein: a water drain pipe (2) is arranged on the water pump (1), and a first heating element (3) is arranged on the side wall of the water drain pipe (2); the water pump assembly further comprises a chassis (5), a third heating element (6) is arranged on the chassis (5), and the control method comprises the following steps:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and b, if the outdoor unit is in a heating mode and t is less than or equal to t0, starting the first heating element (3), the second heating element (4) and the third heating element (6).
7. A control method of an outdoor unit according to claim 1, wherein:
a water drain pipe (2) is arranged on the water pump (1), and a first heating element (3) is arranged on the side wall of the water drain pipe (2); the water pump assembly further comprises a chassis (5), a third heating element (6) is arranged on the chassis (5), and the control method comprises the following steps:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and c, if t is less than t0, and the outdoor unit enters a heating mode from a stop state, the first heating element (3) is started after the second heating element (4) and the third heating element (6) are started and the first time period is continued.
8. A control method of an outdoor unit according to claim 1, wherein:
a water drain pipe (2) is arranged on the water pump (1), and a first heating element (3) is arranged on the side wall of the water drain pipe (2); the water pump assembly further comprises a chassis (5), a third heating element (6) is arranged on the chassis (5), and the control method comprises the following steps:
step a, setting a preset temperature t0, and detecting the working state of the outdoor unit and the temperature t of the environment where the outdoor unit is positioned;
and d, if the outdoor unit is in a heating mode and t is less than t0, continuously starting the first heating element (3) if the condensate water quantity of the outdoor unit is lower than the water suction port (7) of the water pump.
9. The control method according to any one of claims 6 to 8, characterized in that: the value of the preset temperature t0 is 0 ℃.
CN201811115708.6A 2018-09-25 2018-09-25 Water pump component, outdoor unit and control method of outdoor unit Active CN109322856B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811115708.6A CN109322856B (en) 2018-09-25 2018-09-25 Water pump component, outdoor unit and control method of outdoor unit
PCT/CN2019/086223 WO2020062880A1 (en) 2018-09-25 2019-05-09 Outdoor unit, and control method for outdoor unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811115708.6A CN109322856B (en) 2018-09-25 2018-09-25 Water pump component, outdoor unit and control method of outdoor unit

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CN109322856A CN109322856A (en) 2019-02-12
CN109322856B true CN109322856B (en) 2023-12-15

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WO (1) WO2020062880A1 (en)

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CN109405257A (en) * 2018-09-19 2019-03-01 珠海格力电器股份有限公司 The water pump freezing preventer and anti-freeze water pump of air-conditioner set
CN109322856B (en) * 2018-09-25 2023-12-15 珠海格力电器股份有限公司 Water pump component, outdoor unit and control method of outdoor unit
CN110131145B (en) * 2019-05-16 2020-06-09 珠海格力电器股份有限公司 Water pump control method and system and air conditioner
CN111141008B (en) * 2019-12-30 2021-09-21 宁波奥克斯电气股份有限公司 Control method and control device for defrosting of air conditioner, storage medium and air conditioner
CN114135999B (en) * 2021-11-29 2023-01-13 浙江富士精工科技有限公司 Intelligent drainage pump for air conditioner and manufacturing method thereof

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