CN109237734A - A kind of air conditioner outdoor unit chassis method for heating and controlling - Google Patents
A kind of air conditioner outdoor unit chassis method for heating and controlling Download PDFInfo
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- CN109237734A CN109237734A CN201811011790.8A CN201811011790A CN109237734A CN 109237734 A CN109237734 A CN 109237734A CN 201811011790 A CN201811011790 A CN 201811011790A CN 109237734 A CN109237734 A CN 109237734A
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Classifications
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- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/84—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 using valves
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- 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
- F24F11/88—Electrical aspects, e.g. circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air conditioner outdoor unit chassis method for heating and controlling, and after defrosting terminates, closes deicing device, whether there is in detection chassis groove has water, ice, mixture of ice and water；If having ice or mixture of ice and water in groove, deicing device is restarted, after deicing device restarts the first set period of time of operation, detecting to whether there is in the groove of chassis again has water, ice, mixture of ice and water；If there is water without ice in groove, after the second set period of time, detecting to whether there is in the groove of chassis again has water, ice, mixture of ice and water；If without water, ice, mixture of ice and water in groove, whether the difference of the temperature and outdoor environment temperature that detect deicing device is greater than setting difference；If so, control deicing device power-off；By, with the presence or absence of having water, ice, mixture of ice and water, judging come the ice-melt effect to deicing device in detection chassis groove, farthest ensure that the validity of deicing device, chassis water is avoided to freeze.
Description
Technical field
The invention belongs to air-conditioning technical fields, specifically, being to be related to a kind of air conditioner outdoor unit chassis method for heating and controlling.
Background technique
The heating season that low-temperature air source heat pump is primarily adapted for use in winter severe cold area is applicable in, the bottom plate of outdoor unit after defrosting
The water of meeting storage section can cause ice stifled in chassis, cause the water generated after subsequent defrosting if these water are discharged not in time
It cannot be discharged, freeze in chassis, cause defrosting effect poor, influence heat exchanger normal work, reduce heat exchange efficiency.
Summary of the invention
The present invention provides a kind of air conditioner outdoor unit chassis method for heating and controlling, and chassis is avoided to freeze.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following scheme:
A kind of air conditioner outdoor unit chassis method for heating and controlling has groove on the chassis, opens up in the slot bottom of the groove
There is drainage hole, be provided with deicing device in the groove, for heating chassis；
The control method includes:
When air-conditioner defrosting starts, start deicing device；After defrosting, deicing device is closed, following step is then executed:
(1) whether there is in detection chassis groove has water, ice, mixture of ice and water；
If having ice or mixture of ice and water in groove, then follow the steps (2): restarting deicing device runs the first setting time
Duan Hou, return step (1)；
If there is water without ice in groove, after the second set period of time, return step (1)；
If thening follow the steps (3) without water, ice, mixture of ice and water in groove: detecting the temperature and outdoor environment temperature of deicing device
Whether the difference of degree is greater than setting difference；If so, control deicing device power-off.
Further, after control deicing device power-off, the method also includes: control deicing device power-off third setting
After period, the temperature of deicing device is detected again and whether the difference of outdoor environment temperature is greater than setting difference；If so, control
Air-conditioning power-off processed.
Further, when air-conditioning heating is run, if meeting defrosting condition, four-way valve commutation, defrosting starts, and starts
Deicing device；After defrosting, four-way valve commutates again, after deicing device continues to run set period of time, closes deicing device,
Then step (1) is executed.
Further, the value range for setting difference is 4 DEG C~8 DEG C.
Further, the tension signal in groove is detected by tension detecting apparatus, is sentenced according to the tension signal detected
Whether there are water, ice or mixture of ice and water in disconnected groove.
Further, the tension detecting apparatus is provided with multiple, detects the tension letter of multiple positions in groove respectively
Number；Each tension detecting apparatus judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent to
Air-conditioning control panel；
The judging result that air-conditioning control panel judges whether there is tension detecting apparatus is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, it is to have water without ice that then air-conditioning control panel, which judges whether there is the judging result of tension detecting apparatus,；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
Further, the density signal in groove is detected by density sensor, is judged according to the density signal detected
Whether water, ice or mixture of ice and water are had in groove.
Further, the density sensor is provided with multiple, detects the density signal of multiple positions in groove respectively；
Each density sensor judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent to air-conditioning control
Making sheet；
The judging result that air-conditioning control panel judges whether there is density sensor is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, it is to have water without ice that then air-conditioning control panel, which judges whether there is the judging result of density sensor,；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
Further, the specific heat capacity signal in groove is detected by specific heat capacity detection device, according to the specific heat capacity detected
Signal judges whether there is water, ice or mixture of ice and water in groove.
Further, the specific heat capacity detection device is provided with multiple, detects the specific heat of multiple positions in groove respectively
Hold signal；Each specific heat capacity detection device judges whether there is water, ice or mixture of ice and water in groove respectively, and by judging result
It is sent to air-conditioning control panel；
The judging result that air-conditioning control panel judges whether there is specific heat capacity detection device is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, the judging result that then air-conditioning control panel judges whether there is specific heat capacity detection device has water without ice；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
Compared with prior art, the advantages and positive effects of the present invention are: air conditioner outdoor unit chassis of the invention heats control
Method processed, after defrosting terminates, closes deicing device, whether there is in detection chassis groove has water, ice, mixture of ice and water；If
There are ice or mixture of ice and water in groove, then restart deicing device, restarts the first setting time of operation in deicing device
Duan Hou, detecting to whether there is in the groove of chassis again has water, ice, mixture of ice and water；If there is water without ice in groove, set second
After section of fixing time, detecting to whether there is in the groove of chassis again has water, ice, mixture of ice and water；If without water, ice, ice in groove
Whether the difference of aqueous mixtures, the then temperature and outdoor environment temperature that detect deicing device is greater than setting difference；If so, control
Deicing device power-off；Therefore, the present invention starts deicing device when defrosting beginning, heats chassis, after defrosting, closes
Then deicing device has water, ice, mixture of ice and water by whether there is in detection chassis groove, the ice-melt to deicing device
Effect is judged, farthest ensure that the validity of deicing device, is avoided chassis water from freezing, is improved air-conditioning low
Heat exchange efficiency under warm operating condition, and then improve defrosting effect.
After the detailed description of embodiment of the present invention is read in conjunction with the figure, the other features and advantages of the invention will become more
Add clear.
Detailed description of the invention
Fig. 1 is the flow chart of one embodiment of air conditioner outdoor unit chassis method for heating and controlling proposed by the invention；
Fig. 2 is the structural schematic diagram on the chassis in Fig. 1.
Appended drawing reference:
1, chassis；1-1, groove；1-2, drainage hole；1-3, the first installation position；1-4, the second installation position；
2, deicing device.
Specific embodiment
A specific embodiment of the invention is described in more detail with reference to the accompanying drawing.
Aiming at the problem that air conditioner outdoor unit chassis easily freezes, influences defrosting effect, the present embodiment proposes a kind of air conditioning chamber
Outer machine chassis method for heating and controlling, to improve defrosting effect.In the following, to the air conditioner outdoor unit chassis computer heating control side of the present embodiment
Method is described in detail.
Air-conditioning includes air conditioner indoor unit and air-conditioner outdoor unit, and air conditioner indoor unit is connected with air-conditioner outdoor unit.Air-conditioner outdoor unit
Including condenser and chassis 1, there is groove 1-1 on chassis 1, forms water easy-storing area, offered in the slot bottom of groove 1-1 multiple
Drainage hole 1-2 is provided with deicing device 2, for heating chassis in groove 1-1.Condenser is placed on above groove 1-1, cold
The water droplet that the defrost of condenser surface is formed drops down onto groove 1-1, is discharged through drainage hole 1-2, shown in Figure 2.
During air-conditioning heating, when meeting defrosting condition, four-way valve commutation starts to defrost, the height of compressor discharge
Warm refrigerant enters condenser through four-way valve, and condenser temperature increases, and condenser surface frost starts to be melted into water, drops to chassis
In 1 groove 1-1, then it is discharged through drainage hole 1-2.At the end of defrosting, four-way valve commutates again, and air-conditioning normally heats fortune
Row.
The air conditioner outdoor unit chassis method for heating and controlling of the present embodiment, when air-conditioner defrosting starts, four-way valve commutation, starting
Deicing device heats chassis 1；After defrosting, four-way valve commutates again, closes deicing device, after closing deicing device, holds
Row following step, it is shown in Figure 1.
Step S1: whether there is in detection chassis groove has water, ice, mixture of ice and water.
Since outdoor environment temperature is lower, the water that condenser surface drops in the groove of chassis may congeal into ice, blocking
Drainage hole, therefore, after defrosting, needing to detect to whether there is in the groove of chassis has water, ice, mixture of ice and water.
S11: if having ice or mixture of ice and water in groove, S2 is thened follow the steps: restarting deicing device, in deicing device
After restarting the first set period of time of operation, return step S1.In the present embodiment, the first set period of time is 30 minutes,
Not only avoided the time it is too short cause ice not melt completely, but also avoid overlong time waste electric energy.
S12: if having water in groove without ice, detect to have in groove water without the second set period of time of ice after, return
Step S1.Because the water in groove may be discharged through drainage hole and not empty also if having water in groove without ice, therefore,
After second set period of time, S1 is returned.In the present embodiment, the second set period of time is 20 minutes, both the time is avoided to pass short-range missile
Cause water be discharged and detect again not in time, to control it is cumbersome, and avoid overlong time cause entire control logic time-consuming compared with
It is long.
S13: if thening follow the steps S3 without water, ice, mixture of ice and water in groove.
Step S3: obtaining the temperature and outdoor environment temperature of deicing device, calculates the two difference.
Step S4: judge whether difference is greater than setting difference.
If so, illustrating that the temperature difference of deicing device and outdoor environment temperature is larger, deicing device is not powered off, and deicing device is still
It is heated for chassis, and anhydrous no ice in chassis, dry combustion method chassis, waste electric energy, then follow the steps S5: control deicing device is disconnected
Electricity avoids waste electric energy, uses electrification.
Deicing device is directly powered by air conditioner electric source plate, if air conditioner electric source plate powers off, deicing device power-off.In air conditioner electric
The normally opened contact of relay K is in series in the power supply line of source plate and deicing device, air-conditioning control panel controls the coil of relay K
Whether powering on.The coil of air-conditioning control panel control relay powers on, then the normally opened contact closure of relay, on deicing device
Electricity；Air-conditioning control panel controls the coil blackout of relay, then the normally opened contact of relay disconnects, deicing device power-off.
In the present embodiment, control deicing device power-off, can first control relay coil and power on, then control coil again
Power-off avoids leading to deicing device power-off failure due to relay failure.
The air conditioner outdoor unit chassis method for heating and controlling of the present embodiment detects bottom after defrosting terminates, closes deicing device
Whether there is in disk groove has water, ice, mixture of ice and water；If having ice or mixture of ice and water in groove, ice-melt dress is restarted
Set, deicing device restart operation the first set period of time after, again detect chassis groove in the presence or absence of have water, ice,
Mixture of ice and water；If there is water without ice in groove, after the second set period of time, detecting to whether there is in the groove of chassis again has
Water, ice, mixture of ice and water；If detecting the temperature and outdoor environment of deicing device without water, ice, mixture of ice and water in groove
Whether the difference of temperature is greater than setting difference；If so, control deicing device power-off；Therefore, the control method of the present embodiment,
When defrosting starts, start deicing device, heat chassis, after defrosting, closes deicing device, it is then recessed by detection chassis
With the presence or absence of having water, ice, mixture of ice and water in slot, judges come the ice-melt effect to deicing device, farthest guarantee
The validity of deicing device avoids chassis water from freezing, and improves heat exchange efficiency of the air-conditioning under worst cold case, and then improve
Defrosting effect.
In the present embodiment, by increasing chassis deicing device, control it, it can effectively will be after the defrosting in chassis
The water of generation is discharged, and guarantees that the water in chassis does not freeze, it is stifled not generate ice.Meanwhile by multiple control, guarantee chassis ice-melt dress
The reliability set reduces waste of energy, evades the use risk that may cause, extends the service life of chassis deicing device.
After control deicing device power-off, the control method further includes following step, shown in Figure 1.
Step S6: after control deicing device power-off third set period of time, temperature and the room of deicing device are reacquired
External environment temperature calculates the two difference.
Step S7: judge whether difference is greater than setting difference.
If so, illustrating that deicing device breaks down again without power-off, it is also possible to which air-conditioning also breaks down, and thens follow the steps
S8: control air-conditioning power-off.After the power-off of air conditioner electric source plate, deicing device power-off is forced, guarantees the safety of air-conditioning and deicing device,
To effectively avoid leading to the impaired problem of inner body because deicing device does not have normal power down.
The power-off of deicing device and control protection have double, and first is that power-off control is carried out using relay, and second is logical
It crosses air-conditioning and forces power-off.The present embodiment is controlled and is protected to the start and stop of deicing device, avoids ice-melt dress to the full extent
It sets the electrifying startup of mistake or does not power off the influence caused by air-conditioner set other component.
In the present embodiment, the value range of difference is set as 4 DEG C~8 DEG C；In the value range, value mistake had both been avoided
Deicing device wrong diagnosis electricity caused by small, and avoid the excessive caused deicing device overheat of value, use electrification；Therefore, exist
In the value range, the normal power supply of deicing device not only ensure that, but also avoid chassis dry combustion method, waste electric energy.
In the present embodiment, third set period of time is 3 minutes, and overlong time had both been avoided to lead to the generation with electrification,
The time too short normal operation that leads to control frequently, influence deicing device and air-conditioning is avoided again.
In air-conditioning heating operation, if meeting defrosting condition, four-way valve commutation, defrosting starts, and starts deicing device, adds
Hot chassis, avoids chassis from freezing；After defrosting, four-way valve commutates again, after deicing device continues to run set period of time, then
It closes deicing device and avoids water from freezing again to prevent from dropping to the water freezing in chassis, waste electric energy, then execute step S1.
Deicing device is electric heater unit, such as electrothermal tube, resistance, heat tape, and being precisely controlled can be to the full extent
Raising capacity usage ratio, keep unit more energy efficient.Certainly, deicing device also can use other energy and be converted into thermal energy, not
It is confined to electric energy.
In the present embodiment, since the tension of water, ice, mixture of ice and water is different, it can be detected and be judged by tension
It is water, ice or mixture of ice and water in groove.The tension signal in groove is detected by tension detecting apparatus, according to what is detected
Tension signal judges whether there is water, ice or mixture of ice and water in groove；Detection method is simple, and judging result is accurate.
For example,
The tension signal detected is then ice or mixture of ice and water in groove in the first setting tension range；
The tension signal detected is then to have water without ice in groove in the second setting tension range；
The tension signal detected is then anhydrous no ice in groove without mixture of ice and water in third setting tension range.
In the present embodiment, tension detecting apparatus is provided with multiple, detects the tension signal of multiple positions in groove respectively,
And it is sent to air-conditioning control panel.For example, deicing device is mounted in groove 1-1, groove 1-1 Internal melt device leading portion, in
It is laid with a tension detecting apparatus respectively at section, back segment, i.e., installs one respectively at three the first installation position 1-3 of groove
Tension detecting apparatus.Also, in groove far from deicing device three positions, i.e. three the second installation position 1-4 place, distinguish cloth
Equipped with a tension detecting apparatus.Tension detecting apparatus there are six being laid altogether i.e. in groove.
Detection process are as follows:
(a) each tension detecting apparatus judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent out
Give air-conditioning control panel.
(b) it is ice or mixture of ice and water that air-conditioning control panel, which judges whether there is the judging result of tension detecting apparatus,.
If so, at least one i.e. tension detecting apparatus detects there is ice or mixture of ice and water in groove, then airconditioning control
Plate finally determines there is ice or mixture of ice and water in groove, executes S11.
If it is not, i.e. all tension detecting apparatus, which are all not detected in groove, ice or mixture of ice and water；Then air-conditioning control
The judging result that making sheet judges whether there is tension detecting apparatus is to have water without ice.
If so, at least one i.e. tension detecting apparatus detects have water without ice in groove, then air-conditioning control panel is finally sentenced
Determine have water without ice in groove, executes S12.
If it is not, then air-conditioning control panel judges anhydrous no ice in groove, also without mixture of ice and water, i.e. execution step S13.
By above-mentioned detection process it is found that if any one tension detecting apparatus detects ice or mixture of ice and water,
Air-conditioning control panel determines there is ice or mixture of ice and water in groove, executes step S11, restarts deicing device, to the maximum extent
Chassis is avoided to freeze.When all tension detecting apparatus, which are all not detected in groove, ice or mixture of ice and water, as long as appointing
What tension detecting apparatus detects have water without ice in groove, then air-conditioning control panel determines have water without ice in groove, executes step
Rapid S12.When all tension detecting apparatus, which are all not detected in groove, water, ice, mixture of ice and water, then air-conditioning control panel
Judge anhydrous no ice in groove, also without mixture of ice and water, executes step S13.
As another preferred design of the present embodiment, since the density of water, ice, mixture of ice and water is different,
Can judge it is water, ice or mixture of ice and water in groove by Density Detection.In the present embodiment, it is examined by density sensor
The density signal in groove is surveyed, judges whether there is water, ice or mixture of ice and water in groove according to the density signal detected；Inspection
Survey method is simple, and judging result is accurate.
For example,
The density signal detected is then ice or mixture of ice and water in groove in the first setting density range；
The density signal detected is then to have water without ice in groove in the second setting density range；
The density signal detected is then anhydrous no ice in groove without mixture of ice and water in third setting density range.
In the present embodiment, density sensor is provided with multiple, detects the tension signal of multiple positions in groove respectively, and
It is sent to air-conditioning control panel.For example, deicing device is mounted in groove 1-1, the leading portion of groove 1-1 Internal melt device, middle section,
A density sensor is laid at back segment respectively, i.e., a density is installed respectively at three the first installation position 1-3 of groove
Sensor.Also, far from three positions of deicing device in groove, i.e. at three the second installation position 1-4, it is laid with one respectively
A density sensor.Density sensor there are six being laid altogether i.e. in groove.
Detection process are as follows:
(c) each density sensor judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent
To air-conditioning control panel.
(d) it is ice or mixture of ice and water that air-conditioning control panel, which judges whether there is the judging result of density sensor,.
If so, at least one i.e. density sensor detects there is ice or mixture of ice and water in groove, then air-conditioning control panel
It is final to determine there is ice or mixture of ice and water in groove, execute S11.
If it is not, i.e. all density sensors, which are all not detected in groove, ice or mixture of ice and water；Then airconditioning control
The judging result that plate judges whether there is density sensor is to have water without ice.
If so, at least one i.e. density sensor detects have water without ice in groove, then air-conditioning control panel finally determines
There is water without ice in groove, executes S12.
If it is not, then air-conditioning control panel judges anhydrous no ice in groove, also without mixture of ice and water, i.e. execution step S13.
Empty by above-mentioned detection process it is found that as long as any one density sensor detects ice or mixture of ice and water
Regulation making sheet determines there is ice or mixture of ice and water in groove, executes step S11, restarts deicing device, keeps away to the maximum extent
Exempt from chassis icing.When all density sensors, which are all not detected in groove, ice or mixture of ice and water, as long as any one
A density sensor detects have water without ice in groove, then air-conditioning control panel determines have water without ice in groove, executes step S12.
When all density sensors, which are all not detected in groove, water, ice, mixture of ice and water, then density sensor judges groove
Interior anhydrous no ice executes step S13 also without mixture of ice and water.
As another preferred design of the present embodiment, since the specific heat capacity of water, ice, mixture of ice and water is different, because
This can detect judge it is water, ice or mixture of ice and water in groove by specific heat capacity.In the present embodiment, it is examined by specific heat capacity
The specific heat capacity signal in device detection groove is surveyed, judges whether there is water, ice or ice in groove according to the specific heat capacity signal detected
Aqueous mixtures；Detection method is simple, and judging result is accurate.
For example,
The specific heat capacity signal detected is then ice or mixture of ice and water in groove within the scope of the first setting specific heat capacity；
The specific heat capacity signal detected is then to have water without ice in groove within the scope of the second setting specific heat capacity；
The specific heat capacity signal detected is then anhydrous no ice in groove without mixture of ice and water within the scope of third setting specific heat capacity.
In the present embodiment, specific heat capacity detection device is provided with multiple, detects the specific heat capacity of multiple positions in groove respectively
Signal, and it is sent to air-conditioning control panel.For example, deicing device is mounted in groove 1-1, before groove 1-1 Internal melt device
Section, middle section are laid with a specific heat capacity detection device at back segment respectively, i.e., distinguish at three the first installation position 1-3 of groove
One specific heat capacity detection device is installed.Also, far from three positions of deicing device, i.e. three the second installation position 1- in groove
At 4, it is laid with a specific heat capacity detection device respectively.Specific heat capacity detection device there are six being laid altogether i.e. in groove.
Detection process are as follows:
(e) each specific heat capacity detection device judges whether there is water, ice or mixture of ice and water in groove respectively, and by judging result
It is sent to air-conditioning control panel.
(f) it is ice or mixture of ice and water that air-conditioning control panel, which judges whether there is the judging result of specific heat capacity detection device,.
If so, at least one i.e. specific heat capacity detection device detects there is ice or mixture of ice and water in groove, then air-conditioning control
Making sheet finally determines there is ice or mixture of ice and water in groove, executes S11.
If it is not, i.e. all specific heat capacity detection devices, which are all not detected in groove, ice or mixture of ice and water；Then air-conditioning
The judging result that control panel judges whether there is specific heat capacity detection device is to have water without ice.
If so, at least one i.e. specific heat capacity detection device detects have water without ice in groove, then air-conditioning control panel is final
Determine have water without ice in groove, executes S12.
If it is not, then air-conditioning control panel judges anhydrous no ice in groove, also without mixture of ice and water, i.e. execution step S13.
By above-mentioned detection process it is found that if any one specific heat capacity detection device detects ice or mixture of ice and water,
Then air-conditioning control panel determines there is ice or mixture of ice and water in groove, executes step S11, restarts deicing device, to greatest extent
Ground avoids chassis from freezing.When all specific heat capacity detection devices, which are all not detected in groove, ice or mixture of ice and water, only
Want any one specific heat capacity detection device to detect to have in groove water without ice, then air-conditioning control panel determines to have in groove water without ice,
Execute step S12.It is when all specific heat capacity detection devices, which are all not detected in groove, water, ice, mixture of ice and water, then empty
Regulation making sheet judges anhydrous no ice in groove, also without mixture of ice and water, executes step S13.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the those of ordinary skill in domain is made within the essential scope of the present invention, also should belong to this hair
Bright protection scope.
Claims (10)
1. a kind of air conditioner outdoor unit chassis method for heating and controlling, it is characterised in that: there is groove on the chassis, described recessed
The slot bottom of slot offers drainage hole, is provided with deicing device in the groove, for heating chassis；
The control method includes:
When air-conditioner defrosting starts, start deicing device；After defrosting, deicing device is closed, following step is then executed:
(1) whether there is in detection chassis groove has water, ice, mixture of ice and water；
If having ice or mixture of ice and water in groove, then follow the steps (2): restarting deicing device runs the first setting time
Duan Hou, return step (1)；
If there is water without ice in groove, after the second set period of time, return step (1)；
If thening follow the steps (3) without water, ice, mixture of ice and water in groove: detecting the temperature and outdoor environment temperature of deicing device
Whether the difference of degree is greater than setting difference；If so, control deicing device power-off.
2. control method according to claim 1, it is characterised in that: after control deicing device power-off, the method is also
Include:
After controlling deicing device power-off third set period of time, the temperature of deicing device and the difference of outdoor environment temperature are detected again
Whether value is greater than setting difference；If so, control air-conditioning power-off.
3. control method according to claim 1, it is characterised in that: in air-conditioning heating operation, if meeting defrosting condition,
Then four-way valve commutates, and defrosting starts, and starts deicing device；After defrosting, four-way valve commutates again, and deicing device continues to run
After set period of time, deicing device is closed, then executes step (1).
4. control method according to claim 1, it is characterised in that: the value range for setting difference is 4 DEG C~8
℃。
5. control method according to claim 1, it is characterised in that: detect the tension in groove by tension detecting apparatus
Signal judges whether there is water, ice or mixture of ice and water in groove according to the tension signal detected.
6. control method according to claim 5, it is characterised in that:
The tension detecting apparatus be provided with it is multiple, respectively detect groove in multiple positions tension signal；
Each tension detecting apparatus judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent to
Air-conditioning control panel；
The judging result that air-conditioning control panel judges whether there is tension detecting apparatus is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, it is to have water without ice that then air-conditioning control panel, which judges whether there is the judging result of tension detecting apparatus,；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
7. control method according to claim 1, it is characterised in that: detect the density in groove by density sensor and believe
Number, judge whether there is water, ice or mixture of ice and water in groove according to the density signal detected.
8. control method according to claim 7, it is characterised in that:
The density sensor be provided with it is multiple, respectively detect groove in multiple positions density signal；
Each density sensor judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent to sky
Regulate and control making sheet；
The judging result that air-conditioning control panel judges whether there is density sensor is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, it is to have water without ice that then air-conditioning control panel, which judges whether there is the judging result of density sensor,；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
9. control method according to claim 1, it is characterised in that: detect the ratio in groove by specific heat capacity detection device
Thermal capacitance signal judges whether there is water, ice or mixture of ice and water in groove according to the specific heat capacity signal detected.
10. control method according to claim 9, it is characterised in that:
The specific heat capacity detection device be provided with it is multiple, respectively detect groove in multiple positions specific heat capacity signal；
Each specific heat capacity detection device judges whether there is water, ice or mixture of ice and water in groove respectively, and judging result is sent
To air-conditioning control panel；
The judging result that air-conditioning control panel judges whether there is specific heat capacity detection device is ice or mixture of ice and water；
If so, air-conditioning control panel determines there is ice or mixture of ice and water in groove；
If it is not, the judging result that then air-conditioning control panel judges whether there is specific heat capacity detection device has water without ice；
If so, air-conditioning control panel determines have water without ice in groove；If it is not, then air-conditioning control panel judges anhydrous no ice in groove.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011790.8A CN109237734B (en) | 2018-08-31 | 2018-08-31 | Heating control method for chassis of air conditioner outdoor unit |
| PCT/CN2019/078149 WO2020042590A1 (en) | 2018-08-31 | 2019-03-14 | Heating control method for chassis of outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811011790.8A CN109237734B (en) | 2018-08-31 | 2018-08-31 | Heating control method for chassis of air conditioner outdoor unit |
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| CN109237734A true CN109237734A (en) | 2019-01-18 |
| CN109237734B CN109237734B (en) | 2021-03-19 |
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| WO (1) | WO2020042590A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110500751A (en) * | 2019-08-23 | 2019-11-26 | 珠海格力电器股份有限公司 | Thawing apparatus changes ice method and air conditioner |
| WO2020042590A1 (en) * | 2018-08-31 | 2020-03-05 | 青岛海尔空调电子有限公司 | Heating control method for chassis of outdoor unit of air conditioner |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109237734B (en) | 2021-03-19 |
| WO2020042590A1 (en) | 2020-03-05 |
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Effective date of registration: 20210207 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. |
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