CN105042701A

CN105042701A - Split floor type air conditioner and anti-explosion control method and device

Info

Publication number: CN105042701A
Application number: CN201510560813.0A
Authority: CN
Inventors: 朱良红
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2015-11-11
Anticipated expiration: 2035-09-02
Also published as: CN105042701B

Abstract

The invention provides a split floor type air conditioner and an anti-explosion control method and device for the split floor type air conditioner. The split floor type air conditioner comprises an indoor unit and an outdoor unit. An indoor heat exchanger, an indoor fan opposite to the indoor heat exchanger, and a compressor are arranged in the indoor unit. An outdoor heat exchanger and an outdoor fan opposite to the outdoor heat exchanger are arranged in the outdoor unit. A throttling component is located in the indoor or outdoor unit. The indoor heat exchanger, the throttling component, the outdoor heat exchanger and the compressor are circularly communicated in sequence through a connecting pipe. A pressure switch is located on the air outlet side of the compressor. A control circuit controls and adjusts the working states of one or more of the compressor, the indoor fan, the outdoor fan and the throttling component according to the working state of the pressure switch, so that the running state of the spilt floor type air conditioner is adjusted. According to the technical scheme, the problem that explosion is caused when air outlet pressure of the compressor is too high can be solved, the system running reliability and safety are improved, and the user experience is improved.

Description

Split-floor type air conditioner, explosion prevention controlling process and device

Technical field

The present invention relates to household electrical appliance technical field, in particular to a kind of split-floor type air conditioner, a kind of explosion prevention controlling process for split-floor type air conditioner and a kind of explosion-proof control device for split-floor type air conditioner.

Background technology

At present, existing split-floor type air conditioner, for the pressure detecting of compressor normally by spring leaf pressure point detection or inferred by detected temperatures, and then carry out explosion-proof control, obviously, the pressure sensing result that such scheme obtains is not accurate enough, directly perceived, easily cause erroneous judgement, and then bring bad experience to user, and, the general machine disposed in the outdoor of compressor, because compressor is heavier, off-premises station can be caused also heavier, thus it is very inconvenient that off-premises station is installed, need more artificial installation, thus improve installation cost.

Therefore, how to improve the accuracy that compressor pressure is detected, the security run with the promptness and air-conditioner that improve explosion-proof control, reliability, thus lifting Consumer's Experience becomes technical problem urgently to be resolved hurrily.

Summary of the invention

The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.

For this reason, one object of the present invention is to propose a kind of split-floor type air conditioner.

Another object of the present invention is to propose a kind of explosion prevention controlling process for split-floor type air conditioner.

Another object of the present invention is to propose a kind of explosion-proof control device for split-floor type air conditioner.

An also object of the present invention is to propose a kind of explosion prevention controlling process for split-floor type air conditioner.

For realizing at least one object above-mentioned, embodiment according to a first aspect of the invention, propose a kind of split-floor type air conditioner, comprise: the indoor fan being provided with indoor heat exchanger in the upper chamber of described indoor set and being oppositely arranged with described indoor heat exchanger, is provided with compressor in the lower cavity of described indoor set; Off-premises station, the outdoor fan being provided with outdoor heat exchanger in described off-premises station and being oppositely arranged with described outdoor heat exchanger; Throttle part, described throttle part is arranged in described indoor set or described off-premises station, and wherein, described indoor heat exchanger, described throttle part, described outdoor heat exchanger and described compressor are communicated with by connecting line circulation successively; Pressure switch, described pressure switch is positioned at the air outlet side of described compressor; Control circuit, described control circuit is used for the one or more duty adjusted according to the working state control of described pressure switch in described compressor, described indoor fan, described outdoor fan and described throttle part, to adjust the running status of described split-floor type air conditioner.

Split-floor type air conditioner according to an embodiment of the invention, by compressor being built in the lower cavity of the indoor set of this split-floor type air conditioner, the stability that this split-floor type air conditioner is placed can be improved, the spatial volume of off-premises station can be reduced and alleviate the weight of off-premises station simultaneously, make off-premises station easier for installation, thus decrease the number that off-premises station installs needs, save cost, and by pressure switch being arranged on the gas outlet place of compressor, to detect the pressure state at the gas outlet place of compressor in real time, and send cue to control circuit when changing in working order, adjustment compressor is controlled to make control circuit, indoor fan, one or more duty in outdoor fan and throttle part, namely the explosion-proof countermeasure of startup is accurately and timely realized, quick realization is to the step-down of compressor, avoid erroneous judgement, reach best to make explosion-proof effect, the safety and reliability that further raising split-floor type air conditioner runs, thus lifting Consumer's Experience.

In addition, throttle part can also be set in the indoor set of this split-floor type air conditioner or in off-premises station, namely throttle part both can be placed in indoor set and also can be placed in off-premises station, to make the indoor heat exchanger be communicated with that circulates successively, throttle part, outdoor heat exchanger and compressor form refrigerant loop, and then realize the working cycle process of split-floor type air conditioner, in addition, throttle part can be electric expansion valve or capillary, especially, by throttle part is set to electric expansion valve, split-floor type air conditioner not only can be made to vary with temperature and adjust the size of flow, the constant speed realizing split-floor type air conditioner regulates, can also when the state of pressure switch changes, the duty of self is correspondingly adjusted according to the control signal from control circuit, such as, when pressure switch disconnects, namely when compressor outlet pressure is excessive, can pass through when pressure switch disconnects to the MCU (MasterControlUnit of this split-floor type air conditioner, master controller, i.e. control circuit) send pressure and cross large-signal, cross according to this pressure the aperture that large-signal controls to increase throttle part to make MCU, and then increase the flow of refrigerant, to make compressor reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor.

According to one embodiment of present invention, in technique scheme, preferably, described pressure switch specifically for: be in open mode when the force value of the air outlet side of described compressor is less than preset pressure threshold value, and be in off-state when the force value of the air outlet side of described compressor is more than or equal to described preset pressure threshold value, and send cut-off signal, to make the running status of described control circuit split-floor type air conditioner according to described cut-off signal control break when disconnecting to described control circuit.

Split-floor type air conditioner according to an embodiment of the invention, when the force value of the air outlet side of compressor is less than preset pressure threshold value, namely the pressure of compressor is normal, now pressure switch is in open mode, cut-off signal is not sent to control circuit, and when the force value of the air outlet side of compressor is more than or equal to preset pressure threshold value, during the pressure anomaly of i.e. compressor, such as, pipeline blockage, in the situations such as valve closing, compressor easily sets off an explosion because air outlet side pressure is excessive, now pressure switch is in off-state, and send cut-off signal to control circuit, and then control the duty of the corresponding component adjusting this split-floor type air conditioner, such as control close compressor no longer to produce pressure, can also control to improve rotating speed that is indoor and/or outdoor fan to discharge to accelerate air-flow, and can also control to increase the aperture of throttle part to increase the flow etc. of refrigerant, to make compressor reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, also comprise: cross valve, described cross valve is arranged in described indoor set or described off-premises station; And described indoor heat exchanger, described throttle part, described outdoor heat exchanger, described cross valve and described compressor are communicated with by connecting line circulation successively.

Split-floor type air conditioner according to an embodiment of the invention, cross valve can also be set in the indoor set of this split-floor type air conditioner or in off-premises station, namely cross valve both can be placed in indoor set and also can be placed in off-premises station, to make the indoor heat exchanger be communicated with that circulates successively, throttle part, outdoor heat exchanger, cross valve and compressor form refrigerant loop, and then realize the working cycle process of split-floor type air conditioner, wherein, air-conditioner refrigeration/dehumidification mode of operation can be realized by the switching of cross valve and heat the switching of mode of operation, and carry out high-low pressure switching when the pressure at the gas outlet place of compressor is excessive, to make compressor reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor.

Embodiment according to a second aspect of the invention, propose a kind of explosion prevention controlling process for split-floor type air conditioner, be applied to the split-floor type air conditioner described in any one that technique scheme comprises cross valve, described explosion prevention controlling process comprises: detect described pressure switch and whether be in off-state; When detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Add up the first cumulative time that described split-floor type air conditioner runs by described first duty; Judge whether described first cumulative time is more than or equal to the first Preset Time; When judging that described first cumulative time is more than or equal to described first Preset Time, control to switch described cross valve.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

Particularly, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first control one or morely in all parts of split-floor type air conditioner to transfer the first duty to by current operating state, that is: close compressor is no longer to produce pressure, this is the explosion precaution primarily must taked, the rotating speed that can also improve indoor and/or outdoor fan is discharged to accelerate air-flow, reach step-down object, preferably can rotating speed that is indoor and/or outdoor fan be brought up to maximum, and the aperture of throttle part can also be increased, the aperture of throttle part is larger, air-flow flows out faster, further quickening pressure decay rate, preferably can the aperture of throttle part be increased to maximum, it should be noted that, its aperture of adjustment can be controlled by signal when throttle part is electric expansion valve and reach the object reducing pressure, and the wind speed of outdoor fan not easily regulates sometimes, control optionally to arrange indoor fan while compressor cuts out so can be arranged on according to actual conditions, one or more duty in outdoor fan and throttle part.

Then after running the first Preset Time with this first duty, pressure now can not cause damage to cross valve, and then control to switch cross valve, realize high-low pressure to switch, the speed of further quickening step-down, normal condition is recovered as early as possible with the pressure state of the gas outlet making compressor, thus extend the service life of split-floor type air conditioner, so, by the cooperation of split-floor type air conditioner corresponding component, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, the safety problem that compressor sets off an explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: add up the second cumulative time that described split-floor type air conditioner runs after switching described cross valve; Judge whether described second cumulative time is more than or equal to the second Preset Time.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner; start to add up the running time (the second cumulative time) after switching when switching cross valve at split-floor type air conditioner; judge whether the second cumulative time was more than or equal to the second Preset Time; and determine whether to remove explosive-proof protector action according to judged result, and then determine whether the running status of all parts readjusting split-floor type air conditioner.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part; And described when judging that described first cumulative time is more than or equal to described first Preset Time, before controlling to switch described cross valve, also comprise: record the present mode of operation before described cross valve switches.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state; And when judgement first cumulative time is more than or equal to the first Preset Time, first the present mode of operation before cross valve switches is recorded, then, control again to switch cross valve, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, also comprise: when judging that described second cumulative time is more than or equal to described second Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty, and controls described cross valve and switch to described present mode of operation.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner, when the second cumulative time was more than or equal to the second Preset Time, show that step-down is successful on the whole, the pressure of the gas outlet of compressor has been tending towards normal, do not have explosion danger, compressor can be controlled, indoor fan, one or more in outdoor fan and throttle part revert to recorded current operating state by the first duty, and control cross valve and switch to recorded present mode of operation, i.e. explosive-proof protector mode release, split-floor type air conditioner revert to explosion-proof before running status, so, by the cooperation of the corresponding component of split-floor type air conditioner, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, compressor causes the safety problem of explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, the span of described first Preset Time is: 2 minutes ~ 5 minutes; And the span of described second Preset Time is: 3 minutes ~ 6 minutes.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner, the span of the first Preset Time is preferentially elected as: 2 minutes ~ 5 minutes, at this moment, do not switch cross valve, first step-down is exhausted, so, when cross valve switches by close compressor, the one or more modes improved in indoor and outdoor fan operation rotating speed and increase throttle part aperture, effectively can avoid damaging cross valve because pressure is excessive, play a protective role; In addition, the span of the second Preset Time preferentially elects 3 clock ~ 6 minute as, at this moment, by the cooperation of all parts of split-floor type air conditioner, has been enough to step-down, thus ensures that split-floor type air conditioner normally runs.

Embodiment according to a third aspect of the invention we, propose a kind of explosion-proof control device for split-floor type air conditioner, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion-proof control device comprises: detection module, whether is in off-state for detecting described pressure switch; Control module, for when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Statistical module, for adding up the first cumulative time that described split-floor type air conditioner runs by described first duty; Judge module, for judging whether described first cumulative time is more than or equal to the first Preset Time; And described control module also for: when judge described first cumulative time be more than or equal to described first Preset Time time, control switch described cross valve.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

According to one embodiment of present invention, in technique scheme, preferably, described statistical module also for: add up described split-floor type air conditioner switching the second cumulative time run after described cross valve; Described judge module also for: judge whether described second cumulative time is more than or equal to the second Preset Time.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner; start to add up the running time (the second cumulative time) after switching when switching cross valve at split-floor type air conditioner; judge whether the second cumulative time was more than or equal to the second Preset Time; and determine whether to remove explosive-proof protector action according to judged result, and then determine whether the running status of all parts readjusting split-floor type air conditioner.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, also comprise: logging modle, described logging modle specifically for: described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part; And described when judging that described first cumulative time is more than or equal to described first Preset Time, before controlling to switch described cross valve, also comprise: record the present mode of operation before described cross valve switches.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state; And when judgement first cumulative time is more than or equal to the first Preset Time, first the present mode of operation before cross valve switches is recorded, then, control again to switch cross valve, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, described control module also for: judge described second cumulative time be more than or equal to described second Preset Time time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty, and controls described cross valve and switch to described present mode of operation.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner, when the second cumulative time was more than or equal to the second Preset Time, show that step-down is successful on the whole, the pressure of the gas outlet of compressor has been tending towards normal, do not have explosion danger, compressor can be controlled, indoor fan, one or more in outdoor fan and throttle part revert to recorded current operating state by the first duty, and control cross valve and switch to recorded present mode of operation, i.e. explosive-proof protector mode release, split-floor type air conditioner revert to explosion-proof before running status, so, by the cooperation of the corresponding component of split-floor type air conditioner, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, compressor causes the safety problem of explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner, the span of the first Preset Time is preferentially elected as: 2 minutes ~ 5 minutes, at this moment, do not switch cross valve, first step-down is exhausted, so, when cross valve switches by close compressor, the one or more modes improved in indoor and outdoor fan operation rotating speed and increase throttle part aperture, effectively can avoid damaging cross valve because pressure is excessive, play a protective role; In addition, the span of the second Preset Time preferentially elects 3 clock ~ 6 minute as, at this moment, by the cooperation of all parts of split-floor type air conditioner, has been enough to step-down, thus ensures that split-floor type air conditioner normally runs.

Embodiment according to a forth aspect of the invention, propose a kind of explosion prevention controlling process for split-floor type air conditioner, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion prevention controlling process comprises: detect described pressure switch and whether be in off-state; When detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Add up the 3rd cumulative time that described split-floor type air conditioner runs by described first duty; Judge whether described 3rd cumulative time is more than or equal to the 3rd Preset Time; When judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner; for the single cooler not arranging cross valve; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

Then after running the 3rd Preset Time with this first duty, show that step-down is successful on the whole, the pressure of the gas outlet of compressor has been tending towards normal, do not have explosion danger, compressor can be controlled, indoor fan, one or more in outdoor fan and throttle part revert to current operating state by the first duty, i.e. explosive-proof protector mode release, split-floor type air conditioner revert to explosion-proof before duty, so, by the cooperation of split-floor type air conditioner corresponding component, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, the safety problem that compressor sets off an explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

According to one embodiment of present invention, in technique scheme, preferably, described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, the span of described 3rd Preset Time is: 2 minutes ~ 15 minutes.

According to an embodiment of the invention for the explosion prevention controlling process of split-floor type air conditioner, the span of the 3rd Preset Time is preferentially elected as: 2 minutes ~ 15 minutes, at this moment, pass through close compressor, improve indoor, outer blower fan running speed and the one or more modes increased in throttle part aperture are exhausted step-down, can effectively avoid causing compressor to explode because pressure is excessive, it is played a protective role, thus ensure that split-floor type air conditioner normally runs, certainly, the span of the 3rd Preset Time also can be different according to the difference of systematic function, such as can be taken as 2 minutes ~ 5 minutes, 3 minutes ~ 6 minutes etc.

Embodiment according to a fifth aspect of the invention, propose a kind of explosion-proof control device for split-floor type air conditioner, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion-proof control device comprises: detection module, whether is in off-state for detecting described pressure switch; Control module, for when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Statistical module, for adding up the 3rd cumulative time that described split-floor type air conditioner runs by described first duty; Judge module, for judging whether described first cumulative time is more than or equal to the 3rd Preset Time; And described control module also for: when judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner; for the single cooler not arranging cross valve; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: logging modle, described logging modle specifically for: described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to an embodiment of the invention for the explosion-proof control device of split-floor type air conditioner, the span of the 3rd Preset Time is preferentially elected as: 2 minutes ~ 15 minutes, at this moment, pass through close compressor, improve indoor, outer blower fan running speed and the one or more modes increased in throttle part aperture are exhausted step-down, can effectively avoid causing compressor to explode because pressure is excessive, it is played a protective role, thus ensure that split-floor type air conditioner normally runs, certainly, the span of the 3rd Preset Time also can be different according to the difference of systematic function, such as can be taken as 2 minutes ~ 5 minutes, 3 minutes ~ 6 minutes etc.

Additional aspect of the present invention and advantage provide in description part below, and part will become obvious from the following description, or be recognized by practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 shows the block diagram of split-floor type air conditioner according to an embodiment of the invention;

Fig. 2 shows the schematic flow sheet of the explosion prevention controlling process for split-floor type air conditioner according to an embodiment of the invention;

Fig. 3 shows the schematic flow sheet of the explosion prevention controlling process for split-floor type air conditioner according to another embodiment of the invention;

Fig. 4 shows the block diagram of the explosion-proof control device for split-floor type air conditioner according to an embodiment of the invention;

Fig. 5 shows the schematic flow sheet of the explosion prevention controlling process for split-floor type air conditioner according to still another embodiment of the invention;

Fig. 6 shows the block diagram of the explosion-proof control device of split-floor type air conditioner according to another embodiment of the invention.

Detailed description of the invention

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

Fig. 1 shows the block diagram of split-floor type air conditioner according to an embodiment of the invention.

As shown in Figure 1, the split-floor type air conditioner 1 of one embodiment of the present of invention, comprising: indoor set 10, off-premises station 20 and throttle part 30.Wherein, described indoor set 10 comprises: the indoor fan 104 being provided with indoor heat exchanger 102 in the upper chamber of described indoor set 10 and being oppositely arranged with described indoor heat exchanger 102, is provided with compressor 106 in the lower cavity of described indoor set 10; The outdoor fan 204 being provided with outdoor heat exchanger 202 in described off-premises station 20 and being oppositely arranged with described outdoor heat exchanger 202; Described throttle part 30 is arranged in described indoor set 10 or described off-premises station 20, and wherein, described indoor heat exchanger 102, described throttle part 30, described outdoor heat exchanger 202 and described compressor 106 are communicated with by connecting line circulation successively; Pressure switch 108, described pressure switch 108 is positioned at the air outlet side of described compressor 106; Control circuit 110, described control circuit 110 for adjusting the one or more duty in described compressor 106, described indoor fan 104, described outdoor fan 204 and described throttle part 30 according to the working state control of described pressure switch 108, to adjust the running status of described split-floor type air conditioner 1.

Split-floor type air conditioner 1 according to an embodiment of the invention, by compressor 106 is built in the lower cavity of indoor set 10 of this split-floor type air conditioner 1, the stability that this split-floor type air conditioner 1 is placed can be improved, the spatial volume of off-premises station 20 can be reduced and alleviate the weight of off-premises station 20 simultaneously, make off-premises station 20 easier for installation, thus decrease the number that off-premises station 20 installs needs, save cost, and by pressure switch 108 being arranged on the gas outlet place of compressor 106, to detect the pressure state at the gas outlet place of compressor 106 in real time, and send cue to control circuit 110 when changing in working order, adjustment compressor 106 is controlled to make control circuit 110, indoor fan 104, one or more duty in outdoor fan 204 and throttle part 30, namely the explosion-proof countermeasure of startup is accurately and timely realized, quick realization is to the step-down of compressor 106, avoid erroneous judgement, reach best to make explosion-proof effect, the safety and reliability that further raising split-floor type air conditioner 1 runs, thus lifting Consumer's Experience.

In addition, throttle part 30 can also be set in the indoor set 10 of this split-floor type air conditioner 1 or in off-premises station 20, namely throttle part 30 both can be placed in indoor set 10 and also can be placed in off-premises station 20, to make the indoor heat exchanger 102 be communicated with that circulates successively, throttle part 30, outdoor heat exchanger 202 and compressor 106 form refrigerant loop, and then realize the working cycle process of split-floor type air conditioner 1, in addition, throttle part 30 can be electric expansion valve or capillary, especially, by throttle part 30 is set to electric expansion valve, split-floor type air conditioner 1 not only can be made to vary with temperature and adjust the size of flow, the constant speed realizing split-floor type air conditioner 1 regulates, can also when the state of pressure switch 108 changes, the duty of self is correspondingly adjusted according to the control signal from control circuit 110, such as, when pressure switch 108 disconnects, namely when compressor 106 gas outlet pressure is excessive, can pass through when pressure switch 108 disconnects to the MCU (MasterControlUnit of this split-floor type air conditioner 1, master controller, i.e. control circuit 110) send pressure cross large-signal, cross according to this pressure the aperture that large-signal controls to increase throttle part 30 to make MCU, and then increase the flow of refrigerant, to make compressor 106 reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor 106.

According to one embodiment of present invention, in technique scheme, preferably, described pressure switch 108 specifically for: be in open mode when the force value of the air outlet side of described compressor 106 is less than preset pressure threshold value, and be in off-state when the force value of the air outlet side of described compressor 106 is more than or equal to described preset pressure threshold value, and send cut-off signal to described control circuit 110, to make the running status of described control circuit 110 split-floor type air conditioner 1 according to described cut-off signal control break when disconnecting.

Split-floor type air conditioner 1 according to an embodiment of the invention, when the force value of the air outlet side of compressor 106 is less than preset pressure threshold value, namely the pressure of compressor 106 is normal, now pressure switch 108 is in open mode, cut-off signal is not sent to control circuit 110, and when the force value of the air outlet side of compressor 106 is more than or equal to preset pressure threshold value, during the pressure anomaly of i.e. compressor 106, such as, pipeline blockage, in the situations such as valve closing, compressor 106 easily sets off an explosion because air outlet side pressure is excessive, now pressure switch 108 is in off-state, and send cut-off signal to control circuit 110, and then control the duty of the corresponding component adjusting this split-floor type air conditioner 1, such as control close compressor 106 no longer to produce pressure, can also control to improve rotating speed that is indoor and/or outdoor fan 204 to discharge to accelerate air-flow, and can also control to increase the aperture of throttle part 30 to increase the flow etc. of refrigerant, to make compressor 106 reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor 106.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, also comprise: cross valve 40, described cross valve 40 is arranged in described indoor set 10 or described off-premises station 20; And described indoor heat exchanger 102, described throttle part 30, described outdoor heat exchanger 202, described cross valve 40 and described compressor 106 are communicated with by connecting line circulation successively.

Split-floor type air conditioner 1 according to an embodiment of the invention, cross valve 40 can also be set in the indoor set 10 of this split-floor type air conditioner 1 or in off-premises station 20, namely cross valve 40 both can be placed in indoor set 10 and also can be placed in off-premises station 20, to make the indoor heat exchanger 102 be communicated with that circulates successively, throttle part 30, outdoor heat exchanger 202, cross valve 40 and compressor 106 form refrigerant loop, and then realize the working cycle process of split-floor type air conditioner 1, wherein, air-conditioner refrigeration/dehumidification mode of operation can be realized by the switching of cross valve 40 and heat the switching of mode of operation, and carry out high-low pressure switching when the pressure at the gas outlet place of compressor 106 is excessive, to make compressor 106 reduction of blood pressure in high-speed, generation chamber implode causes unnecessary loss of personal property because pressure is excessive to avoid compressor 106.

In addition, split-floor type air conditioner 1 according to an embodiment of the invention, indoor fan 104 in indoor set 10 is preferably cross flow fan, i.e. crossflow fan, not only can increase the air output of indoor set 10, but also the length of supply air duct can be shortened, reduce the energy consumption of split-floor type air conditioner 1, and provide sufficient placement space for compressor 106 is built-in, thus save cost.

Fig. 2 shows the schematic flow sheet of explosion prevention controlling process according to an embodiment of the invention.

As shown in Figure 2, the explosion prevention controlling process for split-floor type air conditioner of one embodiment of the present of invention, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion prevention controlling process comprises: step 202, detects described pressure switch and whether is in off-state; Step 204, when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Step 206, adds up the first cumulative time that described split-floor type air conditioner runs by described first duty; Step 208, judges whether described first cumulative time is more than or equal to the first Preset Time; Step 210, when judging that described first cumulative time is more than or equal to described first Preset Time, controls to switch described cross valve.

Fig. 3 shows the schematic flow sheet of the explosion prevention controlling process for split-floor type air conditioner according to another embodiment of the invention.

As shown in Figure 3, the explosion prevention controlling process for split-floor type air conditioner of an alternative embodiment of the invention, idiographic flow is as follows:

Step 302, judges that whether overvoltage protection signal is true (whether the pressure namely detecting the gas outlet of compressor reaches the setting threshold value of pressure switch), if so, enters step 304, otherwise terminate.

Step 304, preserves running frequency, current indoor, the outer blower fan wind speed of compressor, electric expansion valve (throttle part) opening information (i.e. the current operating conditions of recording compressed machine, indoor fan, outdoor fan and throttle part).

Step 306, control to stop compressor, indoor and outdoor blower fan adjusted to highest wind velocity, electric expansion valve adjusts to maximum opening (the first running status, namely the first running status is transferred to by current operating conditions), and start timing (namely adding up the first cumulative time Ta that split-floor type air conditioner runs by the first running status) by time timer.

Step 308, judge whether Ta is greater than T1 (the first Preset Time) (namely judging whether the first cumulative time was more than or equal to the first Preset Time), if, enter step 310, otherwise continue to judge, wherein T1 span is [2,5] (unit: minute).

Step 310, after preserving current cross valve status information (namely recording the present mode of operation before cross valve switches), switches cross valve to inverse state, and adds up split-floor type air conditioner second cumulative time Tb of running after switching cross valve.

Step 312, judge whether Tb is more than or equal to T2 (the second Preset Time) (namely judging whether the second cumulative time was more than or equal to the second Preset Time), if, enter step 314, otherwise continue to judge, wherein T2 span [3,6] (unit: minute).

Step 314, protection act is removed, the state (namely transfer current operating conditions to by the first running status, cross valve switches to present mode of operation) before the inside and outside blower fan wind speed of recovery room, electronic expansion valve opening, cross valve, compressor to protection.

Fig. 4 shows the block diagram of the explosion-proof control device for split-floor type air conditioner according to an embodiment of the invention.

As shown in Figure 4, explosion-proof control device 400 for split-floor type air conditioner according to an embodiment of the invention, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion-proof control device 400 comprises: detection module 402, control module 404, statistical module 406 and judge module 408.Wherein, whether described detection module 402 is in off-state for detecting described pressure switch; Described control module 404 is for when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; The first cumulative time that described statistical module 406 runs by described first duty for adding up described split-floor type air conditioner; Described judge module 408 is for judging whether described first cumulative time is more than or equal to the first Preset Time; And described control module 404 also for: when judge described first cumulative time be more than or equal to described first Preset Time time, control switch described cross valve.

According to an embodiment of the invention for the explosion-proof control device 400 of split-floor type air conditioner; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

According to one embodiment of present invention, in technique scheme, preferably, described statistical module 406 also for: add up described split-floor type air conditioner switching the second cumulative time run after described cross valve; Described judge module 408 also for: judge whether described second cumulative time is more than or equal to the second Preset Time.

According to an embodiment of the invention for the explosion-proof control device 400 of split-floor type air conditioner; start to add up the running time (the second cumulative time) after switching when switching cross valve at split-floor type air conditioner; judge whether the second cumulative time was more than or equal to the second Preset Time; and determine whether to remove explosive-proof protector action according to judged result, and then determine whether the running status of all parts readjusting split-floor type air conditioner.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, also comprise: logging modle 410, described record mould 410 specifically for: described when detecting that described pressure switch is in off-state, control described compressor, described indoor fan, before one or more in described outdoor fan and described throttle part transfer described first duty to by described current operating state, also comprise: record described compressor, described indoor fan, described current operating state one or more in described outdoor fan and described throttle part, and described when judging that described first cumulative time is more than or equal to described first Preset Time, before controlling to switch described cross valve, also comprise: record the present mode of operation before described cross valve switches.

According to an embodiment of the invention for the explosion-proof control device 400 of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state; And when judgement first cumulative time is more than or equal to the first Preset Time, first the present mode of operation before cross valve switches is recorded, then, control again to switch cross valve, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to one embodiment of present invention, in above-mentioned arbitrary technical scheme, preferably, described control module 404 also for: judge described second cumulative time be more than or equal to described second Preset Time time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty, and controls described cross valve and switch to described present mode of operation.

According to an embodiment of the invention for the explosion-proof control device 400 of split-floor type air conditioner, when the second cumulative time was more than or equal to the second Preset Time, show that step-down is successful on the whole, the pressure of the gas outlet of compressor has been tending towards normal, do not have explosion danger, compressor can be controlled, indoor fan, one or more in outdoor fan and throttle part revert to recorded current operating state by the first duty, and control cross valve and switch to recorded present mode of operation, i.e. explosive-proof protector mode release, split-floor type air conditioner revert to explosion-proof before running status, so, by the cooperation of the corresponding component of split-floor type air conditioner, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, compressor causes the safety problem of explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

According to an embodiment of the invention for the explosion-proof control device 400 of split-floor type air conditioner, the span of the first Preset Time is preferentially elected as: 2 minutes ~ 5 minutes, at this moment, do not switch cross valve, first step-down is exhausted, so, when cross valve switches by close compressor, the one or more modes improved in indoor and outdoor fan operation rotating speed and increase throttle part aperture, effectively can avoid damaging cross valve because pressure is excessive, play a protective role; In addition, the span of the second Preset Time preferentially elects 3 clock ~ 6 minute as, at this moment, by the cooperation of all parts of split-floor type air conditioner, has been enough to step-down, thus ensures that split-floor type air conditioner normally runs.

Fig. 5 shows the schematic flow sheet of the explosion prevention controlling process for split-floor type air conditioner according to still another embodiment of the invention.

As shown in Figure 5, the explosion prevention controlling process for split-floor type air conditioner according to still another embodiment of the invention, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion prevention controlling process comprises: step 502, detects described pressure switch and whether is in off-state; Step 504, when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; Step 506, adds up the 3rd cumulative time that described split-floor type air conditioner runs by described first duty; Step 508, judges whether described 3rd cumulative time is more than or equal to the 3rd Preset Time; Step 510, when judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

Then after running the 3rd Preset Time with this first duty, show that step-down is successful on the whole, the pressure of the gas outlet of compressor has been tending towards normal, do not have explosion danger, compressor can be controlled, indoor fan, one or more in outdoor fan and throttle part revert to current operating state by the first duty, i.e. explosive-proof protector mode release, split-floor type air conditioner revert to explosion-proof before running status, so, by the cooperation of split-floor type air conditioner corresponding component, solve split-floor type air conditioner abnormal at system cloud gray model, as pipeline blockage, in the situations such as valve closing, the safety problem that compressor sets off an explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

As shown in Figure 6, the explosion-proof control device 600 of split-floor type air conditioner according to another embodiment of the invention, be applied to the split-floor type air conditioner according to any one of technique scheme, described explosion-proof control device 600 comprises: detection module 602, control module 604, statistical module 606 and judge module 608.Wherein, whether described detection module 602 is in off-state for detecting described pressure switch; Described control module 604 is for when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more; The 3rd cumulative time that described statistical module 606 runs by described first duty for adding up described split-floor type air conditioner; Described judge module 608 is for judging whether described first cumulative time is more than or equal to the 3rd Preset Time; And described control module 604 also for: when judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

According to an embodiment of the invention for the explosion-proof control device 600 of split-floor type air conditioner; for the single cooler not arranging cross valve; whether off-state is in by detecting the pressure switch being arranged at compressor outlet place; namely judge whether the pressure at the gas outlet place of compressor reaches the setting threshold value of pressure switch; and then realize the accurate detection to compressor pressure by pressure switch; then the running status of air-conditioner is controlled according to testing result; final realization, to the explosive-proof protector of air-conditioner, improves the safety and reliability that air-conditioner runs.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: logging modle 610, described logging modle 610 specifically for: described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part.

According to an embodiment of the invention for the explosion-proof control device 600 of split-floor type air conditioner, when detecting that pressure switch is in off-state, when namely reaching pressure setting threshold value, first the one or more current operating state in compressor, indoor fan, outdoor fan and throttle part is recorded, then, more correspondingly adjust operation state, after follow-up step-down success, recover the current operating state of corresponding component, to ensure that split-floor type air conditioner recovers normal and runs.

According to an embodiment of the invention for the explosion-proof control device 600 of split-floor type air conditioner, the span of the 3rd Preset Time is preferentially elected as: 2 minutes ~ 15 minutes, at this moment, pass through close compressor, improve indoor, outer blower fan running speed and the one or more modes increased in throttle part aperture are exhausted step-down, can effectively avoid causing compressor to explode because pressure is excessive, it is played a protective role, thus ensure that split-floor type air conditioner normally runs, certainly, the span of the 3rd Preset Time also can be different according to the difference of systematic function, such as can be taken as 2 minutes ~ 5 minutes, 3 minutes ~ 6 minutes etc.

More than be described with reference to the accompanying drawings technical scheme of the present invention, solve split-floor type air conditioner abnormal at system cloud gray model, as in the situation such as pipeline blockage, valve closing, the safety problem that compressor sets off an explosion because gas outlet pressure is excessive, improve split-floor type air conditioner reliability of operation and security, thus improve Consumer's Experience.

In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a split-floor type air conditioner, is characterized in that, comprising:

Indoor set, the indoor fan being provided with indoor heat exchanger in the upper chamber of described indoor set and being oppositely arranged with described indoor heat exchanger, is provided with compressor in the lower cavity of described indoor set;

Off-premises station, the outdoor fan being provided with outdoor heat exchanger in described off-premises station and being oppositely arranged with described outdoor heat exchanger;

Throttle part, described throttle part is arranged in described indoor set or described off-premises station, and wherein, described indoor heat exchanger, described throttle part, described outdoor heat exchanger and described compressor are communicated with by connecting line circulation successively;

Pressure switch, described pressure switch is positioned at the air outlet side of described compressor;

Control circuit, described control circuit is used for the one or more duty adjusted according to the working state control of described pressure switch in described compressor, described indoor fan, described outdoor fan and described throttle part, to adjust the running status of described split-floor type air conditioner.

2. split-floor type air conditioner according to claim 1, is characterized in that, described pressure switch specifically for:

Open mode is in when the force value of the air outlet side of described compressor is less than preset pressure threshold value, and be in off-state when the force value of the air outlet side of described compressor is more than or equal to described preset pressure threshold value, and send cut-off signal, to make the running status of described control circuit split-floor type air conditioner according to described cut-off signal control break when disconnecting to described control circuit.

3. split-floor type air conditioner according to claim 1 and 2, is characterized in that, also comprises: cross valve, and described cross valve is arranged in described indoor set or described off-premises station; And

Described indoor heat exchanger, described throttle part, described outdoor heat exchanger, described cross valve and described compressor are communicated with by connecting line circulation successively.

4. for an explosion prevention controlling process for split-floor type air conditioner, it is characterized in that, be applied to split-floor type air conditioner as claimed any one in claims 1 to 3, described explosion prevention controlling process comprises:

Detect described pressure switch and whether be in off-state;

When detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more;

Add up the first cumulative time that described split-floor type air conditioner runs by described first duty;

Judge whether described first cumulative time is more than or equal to the first Preset Time;

When judging that described first cumulative time is more than or equal to described first Preset Time, control to switch described cross valve.

5. the explosion prevention controlling process for split-floor type air conditioner according to claim 4, is characterized in that, also comprise:

Add up the second cumulative time that described split-floor type air conditioner runs after switching described cross valve;

Judge whether described second cumulative time is more than or equal to the second Preset Time.

6. the explosion prevention controlling process for split-floor type air conditioner according to claim 5, is characterized in that,

Described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part; And

Described when judging that described first cumulative time is more than or equal to described first Preset Time, before controlling to switch described cross valve, also comprise: record the present mode of operation before described cross valve switches.

7. the explosion prevention controlling process for split-floor type air conditioner according to claim 6, is characterized in that, also comprise:

When judging that described second cumulative time is more than or equal to described second Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty, and controls described cross valve and switch to described present mode of operation.

8. the explosion prevention controlling process for split-floor type air conditioner according to any one of claim 5 to 7, is characterized in that, the span of described first Preset Time is: 2 minutes ~ 5 minutes; And the span of described second Preset Time is: 3 minutes ~ 6 minutes.

9. for an explosion-proof control device for split-floor type air conditioner, it is characterized in that, be applied to split-floor type air conditioner as claimed any one in claims 1 to 3, described explosion-proof control device comprises:

Whether detection module, be in off-state for detecting described pressure switch;

Control module, for when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers the first duty to by current operating state, wherein, described first duty comprises: that closes described compressor, improves the rotating speed of described indoor fan, improves the rotating speed of described outdoor fan and increase in the aperture of described throttle part is one or more;

Statistical module, for adding up the first cumulative time that described split-floor type air conditioner runs by described first duty;

Judge module, for judging whether described first cumulative time is more than or equal to the first Preset Time; And

Described control module also for: when judge described first cumulative time be more than or equal to described first Preset Time time, control switch described cross valve.

10. the explosion-proof control device for split-floor type air conditioner according to claim 9, is characterized in that,

Described statistical module also for: add up described split-floor type air conditioner switching the second cumulative time run after described cross valve;

Described judge module also for: judge whether described second cumulative time is more than or equal to the second Preset Time.

The 11. explosion-proof control device for split-floor type air conditioner according to claim 10, is characterized in that, also comprise: logging modle, described logging modle specifically for:

The 12. explosion-proof control device for split-floor type air conditioner according to claim 11, is characterized in that, described control module also for:

13., according to claim 10 to the explosion-proof control device for split-floor type air conditioner according to any one of 12, is characterized in that, the span of described first Preset Time is: 2 minutes ~ 5 minutes; And the span of described second Preset Time is: 3 minutes ~ 6 minutes.

14. 1 kinds, for the explosion prevention controlling process of split-floor type air conditioner, is characterized in that, are applied to split-floor type air conditioner as claimed in claim 1 or 2, and described explosion prevention controlling process comprises:

Detect described pressure switch and whether be in off-state;

Add up the 3rd cumulative time that described split-floor type air conditioner runs by described first duty;

Judge whether described 3rd cumulative time is more than or equal to the 3rd Preset Time;

When judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

15. explosion prevention controlling process for split-floor type air conditioner according to claim 14, is characterized in that,

Described when detecting that described pressure switch is in off-state, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfer described first duty to by described current operating state before, also comprise: record described current operating state one or more in described compressor, described indoor fan, described outdoor fan and described throttle part.

16. explosion prevention controlling process for split-floor type air conditioner according to claims 14 or 15, it is characterized in that, the span of described 3rd Preset Time is: 2 minutes ~ 15 minutes.

17. 1 kinds for the explosion-proof control device of split-floor type air conditioner, is characterized in that, are applied to split-floor type air conditioner as claimed in claim 1 or 2, and described explosion-proof control device comprises:

Statistical module, for adding up the 3rd cumulative time that described split-floor type air conditioner runs by described first duty;

Judge module, for judging whether described 3rd cumulative time is more than or equal to the 3rd Preset Time; And

Described control module also for: when judging that described 3rd cumulative time is more than or equal to described 3rd Preset Time, to control in described compressor, described indoor fan, described outdoor fan and described throttle part one or more transfers described current operating state to by described first duty.

The 18. explosion-proof control device for split-floor type air conditioner according to claim 17, is characterized in that, also comprise: logging modle, described logging modle specifically for:

19. explosion-proof control device for split-floor type air conditioner according to claim 17 or 18, it is characterized in that, the span of described 3rd Preset Time is: 2 minutes ~ 15 minutes.