CN110486914A - A kind of control method of Hot water units, device and Hot water units - Google Patents
A kind of control method of Hot water units, device and Hot water units Download PDFInfo
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- CN110486914A CN110486914A CN201910771842.XA CN201910771842A CN110486914A CN 110486914 A CN110486914 A CN 110486914A CN 201910771842 A CN201910771842 A CN 201910771842A CN 110486914 A CN110486914 A CN 110486914A
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- hot water
- temperature
- water units
- inlet
- threshold value
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The present invention relates to a kind of control method of Hot water units, device and Hot water units, which includes: to obtain the inlet and outlet temperature and environment temperature of Hot water units;According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled, to reduce the number that the Hot water units protectiveness is shut down.Technical solution provided by the invention; by the inlet and outlet temperature and environment temperature that obtain Hot water units; according to the inlet and outlet temperature and environment temperature; control working condition of the Hot water units under default operating mode; to reduce the number that the Hot water units protectiveness is shut down; to reduce that water flow caused by Hot water units installation question is insufficient so that bring Hot water units continually protectiveness is shut down the problem of, improve the reliability of Hot water units, user experience is good, satisfaction is high.
Description
Technical field
The present invention relates to Hot water units technical fields, and in particular to a kind of control method of Hot water units, device and hot water
Unit.
Background technique
Hot water units (for example, air source heat pump water heater group) are widely used in the fields such as hot water, heating, Hot water units work
Whether journey installation, which standardizes, directly affects product reliability.It is water system problem, water system that the installation question of Hot water units is most outstanding
System problem is easy to cause Hot water units water flow insufficient, water flow deficiency be easy to cause Hot water units high voltage protective, water outlet overheat,
The problems such as overload protection, frequently occurs, and influences Hot water units reliability, also influences user and uses.
Summary of the invention
To be overcome the problems, such as present in the relevant technologies at least to a certain extent, the present invention provides a kind of control of Hot water units
Method, apparatus processed and Hot water units are easy to happen guarantor in the insufficient situation of water flow to solve Hot water units in the prior art
The problem of shield property is shut down.
According to a first aspect of the embodiments of the present invention, a kind of control method of Hot water units is provided, comprising:
Obtain the inlet and outlet temperature and environment temperature of Hot water units;
According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled,
To reduce the number that the Hot water units protectiveness is shut down.
Preferably, the default operating mode includes: heating mode, and/or, defrost pattern.
Preferably, if the default operating mode includes heating mode, the control Hot water units are in default operating mode
Under working condition, comprising:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is greater than first threshold, and is discharged
Temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;And/or
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is greater than third threshold value, and is discharged
Temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;And/or
If the environment temperature between first preset temperature and the second preset temperature, and, inlet and outlet temperature
Difference is greater than the 4th threshold value, and leaving water temperature is greater than second threshold, then controls the Hot water units frequency reducing operation.
Preferably, the method, further includes:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is less than first threshold, and/or,
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is less than third threshold value, and/or,
If the environment temperature between first preset temperature and the second preset temperature, and, inlet and outlet temperature
Difference controls the Hot water units and keeps current frequency operation less than the 4th threshold value.
Preferably, first preset temperature is less than the second preset temperature.
Preferably, if the default operating mode includes defrost pattern, the control Hot water units are in default work
Working condition under mode, comprising:
If the environment temperature is less than third preset temperature, and, inflow temperature is greater than the 5th threshold value, then controls the hot water
Unit keeps current frequency operation;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature then controls the hot water less than the 6th threshold value
Generator protection is shut down;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature is intervened between the 5th threshold value and the 6th threshold value,
Then control the Hot water units frequency reducing operation.
Preferably, the 5th threshold value is that the difference of inlet and outlet temperature adds the first setting value;And/or
6th threshold value is that the difference of inlet and outlet temperature adds the second setting value;And/or
5th threshold value is greater than the 6th threshold value.
According to a second aspect of the embodiments of the present invention, a kind of control device of Hot water units is provided, comprising:
Module is obtained, for obtaining the inlet and outlet temperature and environment temperature of Hot water units;
Control module, for controlling Hot water units in default operating mode according to the inlet and outlet temperature and environment temperature
Under working condition, to reduce the number that the Hot water units protectiveness is shut down.
According to a third aspect of the embodiments of the present invention, a kind of Hot water units are provided, comprising:
Processor and heat pump,
Memory for storage processor executable instruction;
Wherein, the processor is configured to:
Obtain the inlet and outlet temperature and environment temperature of Hot water units;
According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled,
To reduce the number that the Hot water units protectiveness is shut down.
Preferably, the Hot water units are air friction drag.
The technical solution that the embodiment of the present invention provides can include the following benefits:
By obtaining the inlet and outlet temperature and environment temperature of Hot water units, according to the inlet and outlet temperature and environment temperature,
Working condition of the Hot water units under default operating mode is controlled, to reduce the number that the Hot water units protectiveness is shut down, from
And reduce that water flow caused by Hot water units installation question is insufficient and then bring Hot water units continually asking of shutting down of protectiveness
Topic, improves the reliability of Hot water units, user experience is good, satisfaction is high.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the flow chart of the control method of Hot water units shown according to an exemplary embodiment;
Fig. 2 is the flow chart of the control method of the Hot water units shown according to another exemplary embodiment;
Fig. 3 is the schematic block diagram of the control device of Hot water units shown according to an exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Fig. 1 is a kind of flow chart of the control method of Hot water units shown according to an exemplary embodiment, such as Fig. 1 institute
Show, this method comprises:
Step S11, the inlet and outlet temperature and environment temperature of Hot water units are obtained;
Step S12, according to the inlet and outlet temperature and environment temperature, work of the Hot water units under default operating mode is controlled
Make state, to reduce the number that the Hot water units protectiveness is shut down.
It should be noted that technical solution provided in this embodiment, suitable for Hot water units.Preferably, the hot water
Unit is air friction drag.
The inlet and outlet temperature and environment temperature for obtaining Hot water units, by the temperature sensing package that the Hot water units are arranged in
It obtains.
The working condition of the control Hot water units, including but not limited to: shutdown, frequency reducing, raising frequency etc..
Preferably, the default operating mode includes: heating mode, and/or, defrost pattern.
It should be noted that Hot water units water system problem, which has been fixed, to be existed, In after Hot water units are installed
Under the premise of this, how to ensure that Hot water units can also work normally, reduce protectiveness machine stop times, be the invention solves it is main
Problem.
It is understood that the main operation modes of Hot water units are heating mode and defrost pattern, although more existing
Air friction drag also has refrigerating function, and in summer, Hot water units can heat domestic water on one side, meanwhile, also
It can cool down to room air, still, the most common operating mode of Hot water units is heating mode and defrost pattern, therefore, as long as
It ensures under common operating mode, Hot water units can work normally, and will not frequently protectiveness shut down, just can solve the present invention will solve
Certainly the technical issues of.
It is understood that technical solution provided in this embodiment, by the inlet and outlet temperature and ring that obtain Hot water units
Border temperature controls working condition of the Hot water units under default operating mode according to the inlet and outlet temperature and environment temperature, with
The number that the Hot water units protectiveness is shut down is reduced, to reduce water flow deficiency caused by Hot water units installation question in turn
Bring Hot water units the problem of continually protectiveness is shut down, improve the reliability of Hot water units, user experience is good, satisfied
Degree is high.
Preferably, if the default operating mode includes heating mode, the control Hot water units are in default operating mode
Under working condition, comprising:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is greater than first threshold, and is discharged
Temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;And/or
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is greater than third threshold value, and is discharged
Temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;And/or
If the environment temperature between first preset temperature and the second preset temperature, and, inlet and outlet temperature
Difference is greater than the 4th threshold value, and leaving water temperature is greater than second threshold, then controls the Hot water units frequency reducing operation.
Preferably, the method, further includes:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is less than first threshold, and/or,
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is less than third threshold value, and/or,
If the environment temperature between first preset temperature and the second preset temperature, and, inlet and outlet temperature
Difference controls the Hot water units and keeps current frequency operation less than the 4th threshold value.
It should be noted that first preset temperature, the second preset temperature, first threshold, second threshold, third threshold
Value, the 4th threshold value are configured according to historical experience value or experimental data.
Preferably, first preset temperature is less than the second preset temperature.
It is understood that since environment temperature will affect the heating of Hot water units, so, control is hot in a heating mode
The working condition of water dispenser group needs to take into account the influence of environment temperature.
In addition, also will affect the heating of Hot water units if the difference of inlet and outlet temperature is excessive, so, in a heating mode
Control the working condition of Hot water units, it is also desirable to take into account the difference of inlet and outlet temperature.
Furthermore if leaving water temperature is excessive, Hot water units water outlet overheating protection can be caused and shut down, so, in heating mode
The working condition of lower control Hot water units, it is also desirable to take into account leaving water temperature.
Technical solution provided in this embodiment in order to better understand, now with the first preset temperature for 7 DEG C, the second default temperature
Degree is that 28 DEG C of explanations are as follows:
Environment temperature TRingAt 7 DEG C of <, and the difference of inlet and outlet temperature is greater than first threshold (it is assumed herein that being 8 DEG C), and goes out
Coolant-temperature gage is greater than second threshold (it is assumed herein that being 55 DEG C), then frequency reducing operation is carried out, until condition is unsatisfactory for.
28 DEG C of < environment temperature TRing, and the difference of inlet and outlet temperature is greater than third threshold value (it is assumed herein that being 12 DEG C), and goes out
Coolant-temperature gage is greater than second threshold (it is assumed herein that being 55 DEG C), then frequency reducing operation is carried out, until condition is unsatisfactory for.
7 DEG C≤environment temperature TRing≤ 28 DEG C, and the difference of inlet and outlet temperature is greater than the 4th threshold value (it is assumed herein that being 10 DEG C),
And leaving water temperature is greater than second threshold (it is assumed herein that being 55 DEG C), then frequency reducing operation is carried out, until condition is unsatisfactory for.
It is understood that technical solution provided in this embodiment, not only can reduce disengaging water temperature difference, can also avoid
Hot water units protectiveness caused by leaving water temperature is excessively high is shut down, and scheme is simple, deployment is implemented to be easy, and user experience is good, satisfied
Degree is high.
Preferably, if the default operating mode includes defrost pattern, the control Hot water units are in default work
Working condition under mode, comprising:
If the environment temperature is less than third preset temperature, and, inflow temperature is greater than the 5th threshold value, then controls the hot water
Unit keeps current frequency operation;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature then controls the hot water less than the 6th threshold value
Generator protection is shut down;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature is intervened between the 5th threshold value and the 6th threshold value,
Then control the Hot water units frequency reducing operation.
It should be noted that the third preset temperature is configured according to historical experience value or experimental data, it is described
Third preset temperature generally chooses Hot water units and needs the temperature value of defrost, such as is set as 7 DEG C.
5th threshold value and the 6th threshold value are configured according to historical experience value or experimental data, and can according to
Family needs to be adjusted.
Preferably, the 5th threshold value is that the difference of inlet and outlet temperature adds the first setting value;And/or
6th threshold value is that the difference of inlet and outlet temperature adds the second setting value;And/or
5th threshold value is greater than the 6th threshold value.
Preferably, the first setting value > 0, for example, 15, the second setting value > 0, for example, 5.
With third preset temperature for 7 DEG C, first setting value is 15, and second setting value is 5, is mentioned to the present embodiment
The technical solution of confession illustrates as follows:
Environment temperature TRingAt 7 DEG C of <, water temperature difference T is passed in and out6If inflow temperature TInto> 15+T6, then primary frequency is maintained to run;If
5+T6≤ inflow temperature TInto≤15+T6, then frequency reducing is run;If inflow temperature TInto< 5+T6, then unit carries out protectiveness shutdown.
It is understood that technical solution provided in this embodiment, can mention to avoid the freezing heat exchanger of Hot water units defrost
High product adaptability and reliability promote product comfort.
Fig. 2 is a kind of flow chart of the control method of the Hot water units shown according to another exemplary embodiment, such as Fig. 2 institute
Show, this method comprises:
Step S21, the inlet and outlet temperature and environment temperature of Hot water units are obtained;
Step S22, in a heating mode, if the environment temperature is less than the first preset temperature, and, the difference of inlet and outlet temperature
Value is greater than first threshold, and leaving water temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;
Step S23, in a heating mode, if the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature
Value is greater than third threshold value, and leaving water temperature is greater than second threshold, then controls the Hot water units frequency reducing operation;
Step S24, in a heating mode, if the environment temperature is between first preset temperature and the second preset temperature
Between, and, the difference of inlet and outlet temperature is greater than the 4th threshold value, and leaving water temperature is greater than second threshold, then controls the hot water machine
Group frequency reducing operation;
Step S25, under defrost pattern, if the environment temperature is less than third preset temperature, and, inflow temperature is greater than the
Five threshold values then control the Hot water units and keep current frequency operation;
Step S26, under defrost pattern, if the environment temperature is less than third preset temperature, and, inflow temperature is less than the
Six threshold values then control the Hot water units protectiveness and shut down;
Step S27, under defrost pattern, if the environment temperature is less than third preset temperature, and, inflow temperature intervention the
Between five threshold values and the 6th threshold value, then the Hot water units frequency reducing operation is controlled.
It should be noted that technical solution provided in this embodiment, suitable for Hot water units.Preferably, the hot water
Unit is air friction drag.
The inlet and outlet temperature and environment temperature for obtaining Hot water units, by the temperature sensing package that the Hot water units are arranged in
It obtains.
It should be noted that Hot water units water system problem, which has been fixed, to be existed, In after Hot water units are installed
Under the premise of this, how to ensure that Hot water units can also work normally, reduce protectiveness machine stop times, be the invention solves it is main
Problem.
It is understood that the main operation modes of Hot water units are heating mode and defrost pattern, although more existing
Air friction drag also has refrigerating function, and in summer, Hot water units can heat domestic water on one side, meanwhile, also
It can cool down to room air, still, the most common operating mode of Hot water units is heating mode and defrost pattern, therefore, as long as
It ensures under common operating mode, Hot water units can work normally, and will not frequently protectiveness shut down, just can solve the present invention will solve
Certainly the technical issues of.
It is understood that technical solution provided in this embodiment, by the inlet and outlet temperature and ring that obtain Hot water units
Border temperature controls working condition of the Hot water units under default operating mode according to the inlet and outlet temperature and environment temperature, with
The number that the Hot water units protectiveness is shut down is reduced, to reduce water flow deficiency caused by Hot water units installation question in turn
Bring Hot water units the problem of continually protectiveness is shut down, improve the reliability of Hot water units, user experience is good, satisfied
Degree is high.
Fig. 3 is a kind of schematic block diagram of the control device 100 of the Hot water units shown according to another exemplary embodiment, such as
Shown in Fig. 3, which includes:
Module 101 is obtained, for obtaining the inlet and outlet temperature and environment temperature of Hot water units;
Control module 102, for controlling Hot water units in default Working mould according to the inlet and outlet temperature and environment temperature
Working condition under formula, to reduce the number that the Hot water units protectiveness is shut down.
It is understood that technical solution provided in this embodiment, by the inlet and outlet temperature and ring that obtain Hot water units
Border temperature controls working condition of the Hot water units under default operating mode according to the inlet and outlet temperature and environment temperature, with
The number that the Hot water units protectiveness is shut down is reduced, to reduce water flow deficiency caused by Hot water units installation question in turn
Bring Hot water units the problem of continually protectiveness is shut down, improve the reliability of Hot water units, user experience is good, satisfied
Degree is high.
A kind of Hot water units shown in an exemplary embodiment according to the present invention, comprising:
Processor and heat pump,
Memory for storage processor executable instruction;
Wherein, the processor is configured to:
Obtain the inlet and outlet temperature and environment temperature of Hot water units;
According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled,
To reduce the number that the Hot water units protectiveness is shut down.
Preferably, the Hot water units are air friction drag.
It is understood that technical solution provided in this embodiment, by the inlet and outlet temperature and ring that obtain Hot water units
Border temperature controls working condition of the Hot water units under default operating mode according to the inlet and outlet temperature and environment temperature, with
The number that the Hot water units protectiveness is shut down is reduced, to reduce water flow deficiency caused by Hot water units installation question in turn
Bring Hot water units the problem of continually protectiveness is shut down, improve the reliability of Hot water units, user experience is good, satisfied
Degree is high.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of control method of Hot water units characterized by comprising
Obtain the inlet and outlet temperature and environment temperature of Hot water units;
According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled, to subtract
The number that few Hot water units protectiveness is shut down.
2. the method according to claim 1, wherein
The default operating mode includes: heating mode, and/or, defrost pattern.
3. described according to the method described in claim 2, it is characterized in that, if the default operating mode includes heating mode
Control working condition of the Hot water units under default operating mode, comprising:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is greater than first threshold, and leaving water temperature
Greater than second threshold, then the Hot water units frequency reducing operation is controlled;And/or
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is greater than third threshold value, and leaving water temperature
Greater than second threshold, then the Hot water units frequency reducing operation is controlled;And/or
If the environment temperature between first preset temperature and the second preset temperature, and, the difference of inlet and outlet temperature
Greater than the 4th threshold value, and leaving water temperature is greater than second threshold, then controls the Hot water units frequency reducing operation.
4. according to the method described in claim 3, it is characterized by further comprising:
If the environment temperature less than the first preset temperature, and, the difference of inlet and outlet temperature is less than first threshold, and/or,
If the environment temperature is greater than the second preset temperature, and, the difference of inlet and outlet temperature is less than third threshold value, and/or,
If the environment temperature between first preset temperature and the second preset temperature, and, the difference of inlet and outlet temperature
Less than the 4th threshold value, controls the Hot water units and keep current frequency operation.
5. the method according to claim 3 or 4, which is characterized in that
First preset temperature is less than the second preset temperature.
6. described according to the method described in claim 2, it is characterized in that, if the default operating mode includes defrost pattern
Control working condition of the Hot water units under default operating mode, comprising:
If the environment temperature is less than third preset temperature, and, inflow temperature is greater than the 5th threshold value, then controls the Hot water units
Keep current frequency operation;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature then controls the Hot water units less than the 6th threshold value
Protectiveness is shut down;And/or
If the environment temperature is less than third preset temperature, and, inflow temperature is intervened between the 5th threshold value and the 6th threshold value, then is controlled
Make the Hot water units frequency reducing operation.
7. according to the method described in claim 6, it is characterized in that,
5th threshold value is that the difference of inlet and outlet temperature adds the first setting value;And/or
6th threshold value is that the difference of inlet and outlet temperature adds the second setting value;And/or
5th threshold value is greater than the 6th threshold value.
8. a kind of control device of Hot water units characterized by comprising
Module is obtained, for obtaining the inlet and outlet temperature and environment temperature of Hot water units;
Control module, for controlling Hot water units under default operating mode according to the inlet and outlet temperature and environment temperature
Working condition, to reduce the number that the Hot water units protectiveness is shut down.
9. a kind of Hot water units characterized by comprising
Processor and heat pump,
Memory for storage processor executable instruction;
Wherein, the processor is configured to:
Obtain the inlet and outlet temperature and environment temperature of Hot water units;
According to the inlet and outlet temperature and environment temperature, working condition of the Hot water units under default operating mode is controlled, to subtract
The number that few Hot water units protectiveness is shut down.
10. Hot water units according to claim 9, which is characterized in that
The Hot water units are air friction drag.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111649490A (en) * | 2020-06-12 | 2020-09-11 | 佛山市顺德区资乐电器有限公司 | Control system and control method of heat pump water heater |
CN111811147A (en) * | 2020-06-03 | 2020-10-23 | 珠海格力电器股份有限公司 | Group control method, device and system of water heater and group control host |
CN113390125A (en) * | 2020-03-13 | 2021-09-14 | 青岛海尔中央空调有限公司 | Unit start-stop control method, system and device based on water outlet temperature correction |
CN113758024A (en) * | 2021-09-27 | 2021-12-07 | 浙江中广电器股份有限公司 | Method for judging temperature difference protection of water inlet and outlet and air source heat pump |
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