CN103542495A - Heating protection method and device for air conditioner - Google Patents
Heating protection method and device for air conditioner Download PDFInfo
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- CN103542495A CN103542495A CN201310535438.5A CN201310535438A CN103542495A CN 103542495 A CN103542495 A CN 103542495A CN 201310535438 A CN201310535438 A CN 201310535438A CN 103542495 A CN103542495 A CN 103542495A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 claims description 38
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011022 operating instruction Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to a heating protection method and device for an air conditioner. During the heating operation of the air conditioner, heating protection is performed on the air conditioner according to the operation current of the air conditioner, and the heating protection of the air conditioner is accurate due to the small error of the detection current value. Besides, the air conditioner is controlled to enter a first preset heating protection mode only when the operation current of the air conditioner is continuously larger than a preset threshold at a first preset time interval, so that error judgment caused by current fluctuation is prevented, and heating protection is further performed on the air conditioner.
Description
Technical field
The present invention relates to air-conditioner technical field, relate in particular to a kind of air conditioner heat-production guard method and device.
Background technology
Air-conditioner is when heating mode moves, system pressure is higher compared with refrigeration mode runtime system pressure, it is large that system power is wanted, therefore when indoor and outdoor surroundings temperature is all relatively high, air-conditioner is still when heating mode, system pressure further raises, and system high pressure power exists very large potential safety hazard to the heat exchange copper tube of the pipeline welding position of air-conditioner and thinner thickness, and to the key components and parts of air-conditioner, particularly the life-span of compressor has a significant impact simultaneously.
For solving above-mentioned technological deficiency; prior art proposes two kinds of solutions; a kind of is that compressor self is with protector; when system pressure raises; the delivery temperature of compressor and center housing temperature all can correspondingly raise; when said temperature is elevated to certain value, protector disconnects protection by temperature sensing, stops compressor.But this protection needs continuous start and stop compressor, reduce the service life of compressor.Another kind of technology is set temperature sensor on indoor set heat exchanger, by temperature, controls, and carries out corresponding protection when indoor heat exchanger temperature reaches setting.But indoor heat exchanger is because heat exchange copper tube number is more; which position temperature sensor is finally arranged on just can reach and need the value of surveying and then carry out suitable protection to be difficult to select; simultaneous temperature sensor need to be fixed on heat exchange copper tube; there is temperature difference and thermal loss in cooperation each other; impact to final judgement, make the control of air conditioner heat-production protection not accurate enough.
Summary of the invention
Main purpose of the present invention is to provide a kind of air conditioner heat-production guard method and device, more accurate to the control of air conditioner heat-production protection.
The present invention proposes a kind of air conditioner heat-production guard method, comprising:
At air-conditioner, when heating mode moves, obtain the current running current of air-conditioner;
When the current running current of air-conditioner is greater than the first pre-set threshold value, and when the running current of described air-conditioner continues to be greater than the first pre-set threshold value in default very first time interval, control described air-conditioner and enter default first and heat protected mode.
Preferably, the described air-conditioner of described control enter default first heat the step of protected mode after, the method also comprises:
Obtain the current running current of air-conditioner;
When the current running current of the air-conditioner getting is greater than the second pre-set threshold value; and when within the second default time interval, the running current of described air-conditioner continues to be greater than the second pre-set threshold value; controlling described air-conditioner enters default second and heats protected mode; wherein, described the second pre-set threshold value is less than or equal to described the first pre-set threshold value.
Preferably, the described air-conditioner of described control enter default second heat the step of protected mode after, the method also comprises:
Obtain the running current of air-conditioner;
When the running current of the air-conditioner getting is greater than the 3rd pre-set threshold value; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
Preferably, the described air-conditioner of described control enter the default the 3rd heat the step of protected mode after, the method also comprises:
Obtain the current running current of air-conditioner;
When the running current of the air-conditioner getting is greater than the 4th pre-set threshold value; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
Preferably, the described air-conditioner of described control enter the default the 4th heat the step of protected mode after, the method also comprises:
After the 5th default time interval, control described air-conditioner and enter and heat normally mode of operation.
The present invention also proposes a kind of air conditioner heat-production protective device, comprising:
Monitoring modular, at air-conditioner when heating mode moves, obtain the running current of air-conditioner;
Control module; for the current running current when air-conditioner, be greater than the first pre-set threshold value; and when the running current of described air-conditioner continues to be greater than the first pre-set threshold value in default very first time interval, control described air-conditioner and enter default first and heat protected mode.
Preferably, described monitoring modular also, for when air-conditioner heats protected mode operation with first, continues to obtain the running current of air-conditioner; Described control module is also greater than the second pre-set threshold value for the current running current of the air-conditioner when getting; and when the running current of described air-conditioner continues to be greater than the second pre-set threshold value within the second default time interval, control described air-conditioner and enter default second and heat protected mode.
Preferably, described monitoring modular also, for when air-conditioner heats protected mode operation with second, continues to obtain the running current of air-conditioner; Described control module is also greater than the 3rd pre-set threshold value for the running current of the air-conditioner when getting; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
Preferably, described monitoring modular also, for when air-conditioner heats protected mode operation with the 3rd, continues to obtain the running current of air-conditioner; Described control module is also greater than the 4th pre-set threshold value for the running current of the air-conditioner when getting; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
Preferably, described control module is also for heating after the 5th default time interval of protected mode operation with the 4th at air-conditioner, controls described air-conditioner and enters and heat normally mode of operation.
Air conditioner heat-production guard method and device that the present invention proposes; in the heating process of air-conditioner; according to the running current of air-conditioner, air-conditioner is heated to protection; because the error of detection current value is less; so that to air-conditioner to heat protection more accurate; and when in default very first time interval, the running current of described air-conditioner continues to be greater than the first pre-set threshold value; just controlling described air-conditioner enters default first and heats protected mode; to prevent, because current fluctuation produces erroneous judgement, further more accurately air-conditioner being heated to protection.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of air conditioner heat-production guard method the first embodiment of the present invention;
Fig. 2 is the schematic flow sheet of air conditioner heat-production guard method the second embodiment of the present invention;
Fig. 3 is the schematic flow sheet of air conditioner heat-production guard method the 3rd embodiment of the present invention;
Fig. 4 is the schematic flow sheet of air conditioner heat-production guard method the 4th embodiment of the present invention;
Fig. 5 is the schematic flow sheet of air conditioner heat-production guard method the 5th embodiment of the present invention;
Fig. 6 is the schematic flow sheet of air conditioner heat-production protective device of the present invention preferred embodiment.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
The specific embodiment
Below in conjunction with drawings and the specific embodiments, with regard to technical scheme of the present invention, be described further.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of air conditioner heat-production guard method the first embodiment of the present invention.
The present embodiment proposes a kind of air conditioner heat-production guard method, comprising:
Step S10, when heating mode moves, obtains the current running current of air-conditioner at air-conditioner;
When receiving the heating mode operating instruction of air-conditioner, move this air conditioner heat-production guard method, in real time or the current running current of timing acquisition air-conditioner, can detect the running current of air-conditioner as ammeter by current detection module is set.
Step S20, when the current running current of air-conditioner is greater than the first pre-set threshold value, and when the running current of described air-conditioner continues to be greater than the first pre-set threshold value in default very first time interval, controls described air-conditioner and enters default first and heat protected mode.
First heat protected mode and can be control room inner blower and move with high wind shelves in the present embodiment, close the electrical auxiliary heater of air-conditioner simultaneously; Or first close the electrical auxiliary heater of air-conditioner, and the indoor fan of controlling air-conditioner after continuing for some time moves with high windscreen; Or the indoor fan of first controlling air-conditioner moves with high wind shelves, and after continuing for some time, close the electrical auxiliary heater of air-conditioner.This first heats protected mode and is not limited to above-mentioned mode, also can be other operational mode, can be arranged voluntarily by user.
Because the electrical auxiliary heater of air-conditioner heats the recirculated water of air-conditioner, increased the heating effect of air-conditioner, but the power of electrical auxiliary heater is larger, during operation, can produce larger electric current, therefore after closing electrical auxiliary heater, can effectively reduce the running current of air-conditioner; The wind speed of control room inner blower moves with high wind shelves, makes the air output of air conditioner room unit larger, to reduce condensing pressure.
While moving under heating mode due to air-conditioner, the potential safety hazard that the larger system of pressure that heats of air-conditioner exists is larger, so this default very first time interval value is less, under the prerequisite of judging by accident with minimizing in eliminating current fluctuation, this very first time interval is the smaller the better.
The air conditioner heat-production guard method that the present embodiment proposes; in the heating process of air-conditioner; according to the running current of air-conditioner, air-conditioner is heated to protection; because the error of detection current value is less; so that to air-conditioner to heat protection more accurate; and when in default very first time interval, the running current of described air-conditioner continues to be greater than the first pre-set threshold value; just controlling described air-conditioner enters default first and heats protected mode; to prevent, because current fluctuation produces erroneous judgement, further more accurately air-conditioner being heated to protection.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of air conditioner heat-production guard method the second embodiment of the present invention.
Based on the first embodiment, propose air conditioner heat-production guard method the second embodiment of the present invention, after step S20, also comprise in the present embodiment:
Step S30, obtains the current running current of air-conditioner;
Step S40; when the current running current of the air-conditioner getting is greater than the second pre-set threshold value; and when within the second default time interval, the running current of described air-conditioner continues to be greater than the second pre-set threshold value; controlling described air-conditioner enters default second and heats protected mode; wherein, described the second pre-set threshold value is less than or equal to described the first pre-set threshold value.
When control air-conditioner enter first heat protected mode after; for guaranteeing air-conditioner safe operation under the first heating mode; continue to obtain the current running current of air-conditioner; now owing to having closed after the electrical auxiliary heater of relatively power consumption, the current running current of air-conditioner is less than the first pre-set threshold value and the second pre-set threshold value is less than or equal to the first pre-set threshold value.In the present embodiment; second heats protected mode is preferably at control room inner blower and moves with high wind shelves; when closing the electrical auxiliary heater of air-conditioner; reduce the aperture of off-premises station throttling arrangement to preset value; by turning the aperture of throttling arrangement (as expansion valve) down; the flow of the cold-producing medium in air-conditioner is reduced, reduce further the condensing pressure of air-conditioner.Second time interval was set by the user in the present embodiment, can equal or be not equal to very first time interval.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of air conditioner heat-production guard method the 3rd embodiment of the present invention.
Based on the second embodiment, propose air conditioner heat-production guard method the 3rd embodiment of the present invention, after step S40, also comprise in the present embodiment:
Step S50, obtains the current running current of air-conditioner;
Step S60; when the running current of the air-conditioner getting is greater than the 3rd pre-set threshold value; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
When controlling air-conditioner, enter default second and heat after protected mode, for guaranteeing that air-conditioner heats safe operation under protected mode second, continue to obtain the current running current of air-conditioner, when the running current of the air-conditioner getting is greater than the 3rd pre-set threshold value, and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value, controlling described air-conditioner enters the default the 3rd and heats protected mode, the 3rd heats protected mode is preferably at control room inner blower and moves with high wind shelves, close the electrical auxiliary heater of air-conditioner, the aperture that reduces off-premises station throttling arrangement is to preset value time, close outdoor fan.By closing outdoor fan to reduce the intake of off-premises station, reduce the exchange capability of heat of air-conditioner, minimizing is to indoor distribute heat, reduce the compression ratio of air-conditioner, to reduce system pressure, in the present embodiment, due to the 3rd heat protection protected mode with respect to the second protected mode, only reduced the aperture of throttling arrangement, less to reducing the contribution of air-conditioner running current, so in the situation that indoor environment continues to raise, the running current of air-conditioner can continue to raise, therefore the 3rd pre-set threshold value is greater than the second pre-set threshold value, the 3rd time interval can be set by user in the present embodiment, can equal very first time interval and second time interval, also can be not equal to very first time interval and second time interval.
With reference to Fig. 4, Fig. 4 is the schematic flow sheet of air conditioner heat-production guard method the 4th embodiment of the present invention.
Based on the 3rd embodiment, propose air conditioner heat-production guard method the 4th embodiment of the present invention, after step S60, the method also comprises in the present embodiment:
Step S70, obtains the current running current of air-conditioner;
Step S80; when the running current of the air-conditioner getting is greater than the 4th pre-set threshold value; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
When controlling air-conditioner, enter the default the 3rd and heat after protected mode, for guaranteeing that air-conditioner heats safe operation under protected mode the 3rd, continue to obtain the current running current of air-conditioner, when the running current of the air-conditioner getting is greater than the 4th pre-set threshold value, and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value, controlling described air-conditioner enters the default the 4th and heats protected mode, the 4th heats protected mode is preferably at control room inner blower and moves with high wind shelves, close the electrical auxiliary heater of air-conditioner, reduce the aperture of off-premises station throttling arrangement to preset value, when closing outdoor fan, close the power supply of off-premises station and control air conditioner chamber's inner blower and move with low wind shelves, now the aperture of throttling arrangement stops at preset value, cannot to throttling arrangement, control by controller.Because no longer entering by off-premises station, heat enters in indoor set, air-conditioner no longer heats, low wind shelves operation by indoor fan leaves the waste heat of indoor heat exchanger, the 4th time interval can be set by user in the present embodiment, guaranteed can not occur erroneous judgement because of the fluctuation of electric current.
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of air conditioner heat-production guard method the 5th embodiment of the present invention.
Based on the 4th embodiment, propose air conditioner heat-production guard method the 5th embodiment of the present invention, after step S80, the method also comprises in the present embodiment:
Step S90, after the 5th default time interval, controls described air-conditioner and enters and heat normally mode of operation.
The 5th time interval was preferably 30min in the present embodiment, heating normally mode of operation is off-premises station normal power supply, and its moves to keep heating mode, open electrical auxiliary heater, the wind speed shelves operation to preset of the indoor fan of air-conditioner and outdoor fan, by the regulation of throttling arrangement to preset value, at air-conditioner, enter and heat normally after mode of operation, restart air conditioner heat-production protection flow process, continue to obtain the current running current of air-conditioner, when the current running current of air-conditioner is greater than the first pre-set threshold value, and when in default very first time interval, the running current of described air-conditioner continues to be greater than the first pre-set threshold value, controlling described air-conditioner enters default first and heats protected mode.
With reference to Fig. 6, Fig. 6 is the schematic flow sheet of air conditioner heat-production protective device of the present invention preferred embodiment.
The present invention proposes a kind of air conditioner heat-production protective device, comprising:
Monitoring modular 10, at air-conditioner when heating mode moves, obtain the running current of air-conditioner;
When receiving the heating mode operating instruction of air-conditioner, move this air conditioner heat-production guard method, in real time or the current running current of timing acquisition air-conditioner, can detect the running current of air-conditioner as ammeter by current detection module is set.
First heat protected mode and can be control room inner blower and move with high wind shelves in the present embodiment, close the electrical auxiliary heater of air-conditioner simultaneously; Or first close the electrical auxiliary heater of air-conditioner, and the indoor fan of controlling air-conditioner after continuing for some time moves with high windscreen; Or the indoor fan of first controlling air-conditioner moves with high wind shelves, and after continuing for some time, close the electrical auxiliary heater of air-conditioner.This first heats protected mode and is not limited to above-mentioned mode, also can be other operational mode, can be arranged voluntarily by user.
Because the electrical auxiliary heater of air-conditioner heats the recirculated water of air-conditioner, increased the heating effect of air-conditioner, but the power of electrical auxiliary heater is larger, during operation, can produce larger electric current, therefore after closing electrical auxiliary heater, can effectively reduce the running current of air-conditioner; The wind speed of control room inner blower moves with high wind shelves, makes the air output of air conditioner room unit larger, to reduce condensing pressure.
While moving under heating mode due to air-conditioner, the potential safety hazard that the larger system of pressure that heats of air-conditioner exists is larger, so this default very first time interval value is less, under the prerequisite of judging by accident with minimizing in eliminating current fluctuation, this very first time interval is the smaller the better.
The air conditioner heat-production protective device that the present embodiment proposes; in the heating process of air-conditioner; according to the running current of air-conditioner, air-conditioner is heated to protection; because the error of detection current value is less; so that to air-conditioner to heat protection more accurate; and when in default very first time interval, the running current of described air-conditioner continues to be greater than the first pre-set threshold value; just controlling described air-conditioner enters default first and heats protected mode; to prevent, because current fluctuation produces erroneous judgement, further more accurately air-conditioner being heated to protection.
In air conditioner heat-production protective device of the present invention preferred embodiment, described monitoring modular 10 also, for when air-conditioner heats protected mode operation with first, continues to obtain the running current of air-conditioner; Described control module 20 is also greater than the second pre-set threshold value for the current running current of the air-conditioner when getting; and when the running current of described air-conditioner continues to be greater than the second pre-set threshold value within the second default time interval, control described air-conditioner and enter default second and heat protected mode.
When control air-conditioner enter first heat protected mode after; for guaranteeing air-conditioner safe operation under the first heating mode; continue to obtain the current running current of air-conditioner; now owing to having closed after the electrical auxiliary heater of relatively power consumption, the current running current of air-conditioner is less than the first pre-set threshold value and the second pre-set threshold value is less than or equal to the first pre-set threshold value.In the present embodiment; second heats protected mode is preferably at control room inner blower and moves with high wind shelves; when closing the electrical auxiliary heater of air-conditioner; reduce the aperture of off-premises station throttling arrangement to preset value; by turning the aperture of throttling arrangement (as expansion valve) down; the flow of the cold-producing medium in air-conditioner is reduced, reduce further the condensing pressure of air-conditioner.Second time interval was set by the user in the present embodiment, can equal or be not equal to very first time interval.
In air conditioner heat-production protective device of the present invention preferred embodiment, described monitoring modular 10 also, for when air-conditioner heats protected mode operation with second, continues to obtain the running current of air-conditioner; Described control module 20 is also greater than the 3rd pre-set threshold value for the running current of the air-conditioner when getting; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
When controlling air-conditioner, enter default second and heat after protected mode, for guaranteeing that air-conditioner heats safe operation under protected mode second, continue to obtain the current running current of air-conditioner, when the running current of the air-conditioner getting is greater than the 3rd pre-set threshold value, and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value, controlling described air-conditioner enters the default the 3rd and heats protected mode, the 3rd heats protected mode is preferably at control room inner blower and moves with high wind shelves, close the electrical auxiliary heater of air-conditioner, the aperture that reduces off-premises station throttling arrangement is to preset value time, close outdoor fan.By closing outdoor fan to reduce the intake of off-premises station, reduce the exchange capability of heat of air-conditioner, minimizing is to indoor distribute heat, reduce the compression ratio of air-conditioner, to reduce system pressure, in the present embodiment, due to the 3rd heat protection protected mode with respect to the second protected mode, only reduced the aperture of throttling arrangement, less to reducing the contribution of air-conditioner running current, so in the situation that indoor environment continues to raise, the running current of air-conditioner can continue to raise, therefore the 3rd pre-set threshold value is greater than the second pre-set threshold value, the 3rd time interval can be set by user in the present embodiment, can equal very first time interval and second time interval, also can be not equal to very first time interval and second time interval.
In air conditioner heat-production protective device of the present invention preferred embodiment, described monitoring modular 10 also, for when air-conditioner heats protected mode operation with the 3rd, continues to obtain the running current of air-conditioner; Described control module 40 is also greater than the 4th pre-set threshold value for the running current of the air-conditioner when getting; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
When controlling air-conditioner, enter the default the 3rd and heat after protected mode, for guaranteeing that air-conditioner heats safe operation under protected mode the 3rd, continue to obtain the current running current of air-conditioner, when the running current of the air-conditioner getting is greater than the 4th pre-set threshold value, and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value, controlling described air-conditioner enters the default the 4th and heats protected mode, the 4th heats protected mode is preferably at control room inner blower and moves with high wind shelves, close the electrical auxiliary heater of air-conditioner, reduce the aperture of off-premises station throttling arrangement to preset value, when closing outdoor fan, close the power supply of off-premises station and control air conditioner chamber's inner blower and move with low wind shelves, now the aperture of throttling arrangement stops at preset value, cannot to throttling arrangement, control by controller.Because no longer entering by off-premises station, heat enters in indoor set, air-conditioner no longer heats, low wind shelves operation by indoor fan leaves the waste heat of indoor heat exchanger, the 4th time interval can be set by user in the present embodiment, guaranteed can not occur erroneous judgement because of the fluctuation of electric current.
In air conditioner heat-production protective device of the present invention preferred embodiment, described control module 20 is also for heating after the 5th default time interval of protected mode operation with the 4th at air-conditioner, controls described air-conditioner and enters and heat normally mode of operation.
The 5th time interval was preferably 30min in the present embodiment, heating normally mode of operation is off-premises station normal power supply, and its moves to keep heating mode, open electrical auxiliary heater, the wind speed shelves operation to preset of the indoor fan of air-conditioner and outdoor fan, by the regulation of throttling arrangement to preset value, at air-conditioner, enter and heat normally after mode of operation, restart air conditioner heat-production protection flow process, continue to obtain the current running current of air-conditioner, when the current running current of air-conditioner is greater than the first pre-set threshold value, and when in default very first time interval, the running current of described air-conditioner continues to be greater than the first pre-set threshold value, controlling described air-conditioner enters default first and heats protected mode.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure transformation that utilizes description of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an air conditioner heat-production guard method, is characterized in that, comprising:
At air-conditioner, when heating mode moves, obtain the current running current of air-conditioner;
When the current running current of air-conditioner is greater than the first pre-set threshold value, and when the running current of described air-conditioner continues to be greater than the first pre-set threshold value in default very first time interval, control described air-conditioner and enter default first and heat protected mode.
2. method according to claim 1, is characterized in that, the described air-conditioner of described control enter default first heat the step of protected mode after, the method also comprises:
Obtain the current running current of air-conditioner;
When the current running current of the air-conditioner getting is greater than the second pre-set threshold value; and when within the second default time interval, the running current of described air-conditioner continues to be greater than the second pre-set threshold value; controlling described air-conditioner enters default second and heats protected mode; wherein, described the second pre-set threshold value is less than or equal to described the first pre-set threshold value.
3. method according to claim 2, is characterized in that, the described air-conditioner of described control enter default second heat the step of protected mode after, the method also comprises:
Obtain the running current of air-conditioner;
When the running current of the air-conditioner getting is greater than the 3rd pre-set threshold value; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
4. method according to claim 3, is characterized in that, the described air-conditioner of described control enter the default the 3rd heat the step of protected mode after, the method also comprises:
Obtain the current running current of air-conditioner;
When the running current of the air-conditioner getting is greater than the 4th pre-set threshold value; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
5. method according to claim 4, is characterized in that, the described air-conditioner of described control enter the default the 4th heat the step of protected mode after, the method also comprises:
After the 5th default time interval, control described air-conditioner and enter and heat normally mode of operation.
6. an air conditioner heat-production protective device, is characterized in that, comprising:
Monitoring modular, at air-conditioner when heating mode moves, obtain the running current of air-conditioner;
Control module; for the current running current when air-conditioner, be greater than the first pre-set threshold value; and when the running current of described air-conditioner continues to be greater than the first pre-set threshold value in default very first time interval, control described air-conditioner and enter default first and heat protected mode.
7. device according to claim 6, is characterized in that, described monitoring modular also, for when air-conditioner heats protected mode operation with first, continues to obtain the running current of air-conditioner; Described control module is also greater than the second pre-set threshold value for the current running current of the air-conditioner when getting; and when the running current of described air-conditioner continues to be greater than the second pre-set threshold value within the second default time interval, control described air-conditioner and enter default second and heat protected mode.
8. device according to claim 6, is characterized in that, described monitoring modular also, for when air-conditioner heats protected mode operation with second, continues to obtain the running current of air-conditioner; Described control module is also greater than the 3rd pre-set threshold value for the running current of the air-conditioner when getting; and when within the 3rd default time interval, the running current of described air-conditioner continues to be greater than the 3rd pre-set threshold value; controlling described air-conditioner enters the default the 3rd and heats protected mode; wherein, described the 3rd pre-set threshold value is greater than described the second pre-set threshold value.
9. device according to claim 6, is characterized in that, described monitoring modular also, for when air-conditioner heats protected mode operation with the 3rd, continues to obtain the running current of air-conditioner; Described control module is also greater than the 4th pre-set threshold value for the running current of the air-conditioner when getting; and when within the 4th default time interval, the running current of described air-conditioner continues to be greater than the 4th pre-set threshold value; controlling described air-conditioner enters the default the 4th and heats protected mode; wherein, described the 4th pre-set threshold value is greater than described the 3rd pre-set threshold value.
10. device according to claim 6, is characterized in that, described control module is also for heating after the 5th default time interval of protected mode operation with the 4th at air-conditioner, controls described air-conditioner and enters and heat normally mode of operation.
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| CN201310535438.5A CN103542495A (en) | 2013-10-31 | 2013-10-31 | Heating protection method and device for air conditioner |
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| CN108870682A (en) * | 2018-07-17 | 2018-11-23 | 奥克斯空调股份有限公司 | A kind of air conditioner load control method and device |
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