CN202546973U - Heat pump type air conditioning device - Google Patents
Heat pump type air conditioning device Download PDFInfo
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- CN202546973U CN202546973U CN2012201472472U CN201220147247U CN202546973U CN 202546973 U CN202546973 U CN 202546973U CN 2012201472472 U CN2012201472472 U CN 2012201472472U CN 201220147247 U CN201220147247 U CN 201220147247U CN 202546973 U CN202546973 U CN 202546973U
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Abstract
The utility model provides a heat pump type air conditioning device which comprises an air conditioning main loop, an air supply loop and a defrosting device, wherein the air conditioning main loop comprises a compressor, a four-way reversing valve, an outdoor heat exchanger, a first throttling device, a flash evaporator, an expansion device and an indoor heat exchanger which are connected in sequence through a refrigeration pipe; the first port of the four-way reversing valve is communicated with the outlet end of the compressor, the second port of the four-way reversing valve is communicated with the outdoor heat exchanger, the third port of the four-way reversing valve is communicated with the indoor heat exchanger and the fourth port of the four-way reversing valve is communicated with the inlet end of the compressor; one end of the air supply loop is connected with the flash evaporator, and the other end of the air supply loop is connected with the compressor; the air supply loop comprises air supply valves which are connected through a pipe; the defrosting device is a defrosting branch with a branch valve; and the first end of the defrosting branch is connected between the outlet end of the compressor and the four-way reversing valve and the second end of the defrosting branch is connected between the outdoor heat exchanger and the first throttling device. The heat pump type air conditioning device provided by the utility model is capable of defrosting in time and simple in structure.
Description
Technical field
The utility model relates to filed of air conditioning, in particular to a kind of heat pump type air adjusting device.
Background technology
Heat pump type air adjusting device of the prior art generally adopts the twin-stage compress technique; The twin-stage compress technique is carried out process of refrigerastion through flash vessel and throttling arrangement; Those skilled in the art all know when heating, because the existence of flash vessel, refrigerant must be cold excessively by once more when flowing through flash vessel; The refrigerant that promptly flows into outdoor heat exchanger must be in lower temperature compared to the single stage compress technology, and its frosting situation can be more serious, frequent so.Traditional Defrost mode is at the air-conditioning heating process; Four-way change-over valve switches to the kind of refrigeration cycle flow process; Let the refrigerant of the HTHP that compressor discharges be drained in the outdoor heat exchanger, to melt frost layer or the ice sheet on the air conditioner room outdoor heat exchanger through four-way change-over valve.Traditional Defrost mode at first needs compressor shutdown, and inner blower is after blowing waste heat after a while, and four-way change-over valve just commutates and defrosts.After defrosting was accomplished, compressor was stagnated a period of time again, and four-way change-over valve commutates once more then, heats.After compressor was opened a period of time, interior pipe temperature rise to uniform temperature just can obtain hot blast.This process approximately needs 12～15min even longer, can not in time defrost.
The utility model content
The utility model aims to provide a kind of heat pump type air adjusting device, and the heat pump type air adjusting device of the utility model does not need compressor shutdown just can defrost, and it is timely and simple in structure to defrost.
To achieve these goals; An aspect according to the utility model; A kind of heat pump type air adjusting device is provided; Comprise: the air conditioning major loop; Comprise the compressor, four-way change-over valve, outdoor heat exchanger, first throttle device, flash vessel, expansion gear and the indoor heat exchanger that connect in order through refrigeration pipe; First interface of four-way change-over valve is communicated with the port of export of compressor, second interface is communicated with outdoor heat exchanger, the 3rd interface is communicated with indoor heat exchanger, the 4th interface is communicated with the arrival end of compressor, and four-way change-over valve has to be made first state that the heat pump type air adjusting device carries out heating operation and make the heat pump type air adjusting device carry out second state of refrigerating operaton; The tonifying Qi loop, an end is connected with flash vessel, and the other end is connected with compressor, and the tonifying Qi loop comprises the tonifying Qi valve that connects through pipeline; The heat pump type air adjusting device also comprises the defroster that is used for outdoor heat exchanger is carried out defrost operation, and defroster is the defrosting branch road with branch road valve.
Further, first end of defrosting branch road is connected between the port of export and four-way change-over valve of compressor, second end is connected between outdoor heat exchanger and the first throttle device.
Further, the defrosting branch road first end be connected between four-way change-over valve and the indoor heat exchanger, second end is connected outdoor heat exchanger and the first throttle device between.
Further, the defrosting branch road also comprises second throttling arrangement that is connected in series with the branch road valve.
Further, the tonifying Qi loop also comprises the check valve of connecting and being provided with the tonifying Qi valve.
Further; The heat pump type air adjusting device comprises that also being used to control the heat pump type air adjusting device switches outdoor heat exchanger is carried out the control device of defrost operation between different defrosting control models; The defrosting control model comprises: first defrosting mode; Under first defrosting mode, branch road valve open, four-way change-over valve are in first state; Second defrosting mode, under second defrosting mode, branch road valve closing, four-way change-over valve are in second state.
Further, the heat pump type air adjusting device also comprises outside heat exchange blower fan; Control device also comprises first temperature measuring equipment that is used to detect outdoor environment temperature, and under first defrosting mode, control device detects outdoor environment temperature control room outside heat exchange blower fan according to first temperature measuring equipment and opens or cut out.
Further, the heat pump type air adjusting device also comprises indoor heat exchange blower fan; Control device also comprises second temperature measuring equipment of the coil temperature that is used to detect indoor heat exchanger; Under first defrosting mode, control device opens or cuts out according to the inboard heat exchange blower fan in coil temperature control room that second temperature measuring equipment detects indoor heat exchanger.
Further, at the first defrosting mode lower compression machine continuous service.
Further; Control device also comprises the time detection device that detects the operation duration of heat pump type air adjusting device under first defrosting mode, and control device detects operation duration control heat pump type air adjusting device according to time detection device and switches to second defrosting mode from first defrosting mode.
Use the technical scheme of the utility model; The heat pump type air adjusting device; Comprise: the air conditioning major loop; Comprise the compressor, four-way change-over valve, outdoor heat exchanger, first throttle device, flash vessel, expansion gear and the indoor heat exchanger that connect in order through refrigeration pipe; First interface of four-way change-over valve is communicated with the port of export of compressor, second interface is communicated with outdoor heat exchanger, the 3rd interface is communicated with indoor heat exchanger, the 4th interface is communicated with the arrival end of compressor, and four-way change-over valve has to be made first state that the heat pump type air adjusting device carries out heating operation and make the heat pump type air adjusting device carry out second state of refrigerating operaton; The tonifying Qi loop, an end is connected with flash vessel, and the other end is connected with compressor, and the tonifying Qi loop comprises the tonifying Qi valve that connects through pipeline; The heat pump type air adjusting device also comprises the defroster that is used for outdoor heat exchanger is carried out defrost operation, and defroster is the defrosting branch road with branch road valve.The heat pump type air adjusting device promptly can be implemented in the function that when heating outdoor heat exchanger is defrosted owing to only a defrosting branch road is set, and with respect to traditional heat pump type air adjusting device, has the advantage that defroster is simple in structure, defrosting efficiency is high.In addition, such setting makes the defrosting branch road of this programme only use the branch road valve and second throttling arrangement and connecting line to constitute, and is simple in structure.
Description of drawings
The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 shows the system schematic of first embodiment of the heat pump type air adjusting device of the utility model;
Refrigerant when Fig. 2 shows the refrigerating operaton of heat pump type air adjusting device of Fig. 1 flows to sketch map;
Refrigerant when Fig. 3 shows the heating operation of heat pump type air adjusting device of Fig. 1 flows to sketch map;
The following refrigerant that moves of first defrosting mode that Fig. 4 shows the heat pump type air adjusting device of Fig. 1 flows to sketch map;
The following refrigerant that moves of second defrosting mode that Fig. 5 shows the heat pump type air adjusting device of Fig. 1 flows to sketch map; And
Fig. 6 shows the system schematic of second embodiment of heat pump type air adjusting device of the present invention.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
As shown in Figure 1; The heat pump type air adjusting device of present embodiment comprises air conditioning major loop, tonifying Qi loop and defroster; The air conditioning major loop comprises compressor 1, four-way change-over valve 2, outdoor heat exchanger 5, first throttle device 8, flash vessel 9, expansion gear 10 and the indoor heat exchanger 13 that connects in order through refrigeration pipe; First interface of four-way change-over valve 2 is communicated with the port of export of compressor 1, second interface is communicated with outdoor heat exchanger 5, the 3rd interface is communicated with indoor heat exchanger 13, the 4th interface is communicated with the arrival end of compressor 1, and four-way change-over valve 2 has to be made first state that the heat pump type air adjusting device carries out heating operation and make the heat pump type air adjusting device carry out second state of refrigerating operaton; One end in tonifying Qi loop is connected with flash vessel 9, the other end is connected with compressor 1, and the tonifying Qi loop comprises the tonifying Qi valve 14 that connects through pipeline; Defroster is used for outdoor heat exchanger 5 is carried out defrost operation; Defroster is the defrosting branch road with branch road valve 3, and first end of defrosting branch road is connected between the port of export and four-way change-over valve 2 of compressor 1, second end is connected between outdoor heat exchanger 5 and the first throttle device 8.
The heat pump type air adjusting device promptly can be implemented in the function that when heating outdoor heat exchanger is defrosted owing to only a defrosting branch road is set, and with respect to traditional heat pump type air adjusting device, has the advantage that defroster is simple in structure, defrosting efficiency is high.In addition, such setting makes the defrosting branch road of this programme only use the branch road valve 3 and second throttling arrangement 4 and connecting line to constitute, and is simple in structure.
Preferably, the defrosting branch road also comprises second throttling arrangement 4 that is connected in series with branch road valve 3.Second throttling arrangement 4 is mainly used in the defrost process the hot cold media gas that compressor 1 is discharged to carry out after the throttling step-down in bypass to the outdoor heat exchanger 5, and second throttling arrangement 4 can be selected capillary, short tube etc. for use.Need to prove that if the aperture of branch road valve 3 itself is little, satisfy the needs of throttling step-down, the defrosting branch road can not be provided with second throttling arrangement 4.
Preferably, the tonifying Qi loop also comprises the check valve 15 of connecting and being provided with tonifying Qi valve 14.Wherein tonifying Qi valve 14 is a two-port valve, and the setting of check valve 15 makes the refrigerant in the tonifying Qi loop flow to compressor 1 by flash vessel 9.Need to prove that the reason that check valve 15 is provided with depends on the requirement of two-port valve to flowing to; If two-port valve to flowing to no requirement (NR) then check valve need not be set, if two-port valve has requirement to the flow direction, then need be provided with check valve and assist two-port valve.
As shown in Figure 2; The heat pump type air adjusting device of present embodiment is in the refrigerating operaton process, and branch road valve 3 is closed, and tonifying Qi valve 14 is opened; Four-way change-over valve 2 is in second state; Particularly, first interface of four-way change-over valve 2 is communicated with second interface, and the 3rd interface of four-way change-over valve 2 is communicated with the 4th interface; The flow direction of refrigerant in this process is: compressor 1 → outdoor heat exchanger 5 → first throttle device 8 → flash vessel 9 → expansion gear 10 → indoor heat exchanger 13 → four-way change-over valve 2 → compressor 1; Wherein, refrigerant is through behind the flash vessel 9, and some gets into the tonifying Qi loop and flows in the compressor 1 again.
As shown in Figure 3; The heat pump type air adjusting device of present embodiment is in heating process, and branch road valve 3 is closed, and tonifying Qi valve 14 is opened; Four-way change-over valve 2 is in first state; Particularly, first interface of four-way change-over valve 2 is communicated with the 3rd interface, and second interface of four-way change-over valve 2 is communicated with the 4th interface; The flow direction of refrigerant in this process is: compressor 1 → indoor heat exchanger 13 → expansion gear 10 → flash vessel 9 → first throttle device 8 → outdoor heat exchanger 5 → four-way change-over valve 2 → compressor 1; Wherein, refrigerant is through behind the flash vessel 9, and some gets into the tonifying Qi loop and flows in the compressor 1 again.
The heat pump type air adjusting device of present embodiment also comprises control device, and control device control heat pump type air adjusting device is switched between different defrosting control models so that outdoor heat exchanger 5 is carried out defrost operation, and the defrosting control model comprises:
First defrosting mode, under first defrosting mode, branch road valve 3 is opened, and four-way change-over valve 2 is in first state;
Second defrosting mode, under second defrosting mode, branch road valve 3 is closed, and four-way change-over valve 2 is in second state.
Wherein first defrosting mode is specially:
Under first defrosting mode, branch road valve 3 is opened, and tonifying Qi valve 14 is opened, and four-way change-over valve 2 is in first state.As shown in Figure 4, refrigerant circulates according to following flow direction under first defrosting mode: the refrigerant of compressor 1 port of export is divided into refrigerant main flow and refrigerant tributary.Wherein, successively flow through behind the two-port valve and second throttling arrangement 4 in the refrigerant tributary, converges before getting into outdoor heat exchanger 5 with the refrigerant main flow.The refrigerant main flow gets into four-way change-over valve 2 and the indoor heat exchanger 13 of flowing through successively gets into flash vessel 9 with expansion gear 10; The refrigerant main flow get into flash vessel 9 back parts flow into the tonifying Qi loop finally get into compressor 1, another part flow into first throttle device 8 and with the defrosting branch road of flowing through in the refrigerant tributary converge the inlet chamber outside, back heat exchanger 5, get back to the arrival end of compressor 1 behind the four-way change-over valve 2 of flowing through again.
If control device is judged conditioner and need be got into the operation of first defrosting mode, then according to following policy control:
1: compressor 1 continuous service.Be preferably frequency-changeable compressor in the present embodiment, under first defrosting mode, preferably adopt the high frequency operation, compressor 1 is moved in 60 to 120Hz scope.
2: four-way change-over valve 2 maintains first state that makes the air conditioning major loop be in heating operation, need not commutate.
3: branch road valve 3 is opened conducting; The hot cold media gas that compressor 1 is discharged is delivered to outdoor heat exchanger 5 after collaborating with the cold media gas of expansion gear 10; The higher refrigerant temperature that passes through outdoor heat exchanger 5 when obtaining than heating operation, thus outdoor heat exchanger 5 is defrosted.
5: the heat pump type air adjusting device also comprises outside heat exchange blower fan 6 and first temperature measuring equipment that is used to detect outdoor environment temperature.Outside heat exchange blower motor 7 is used for drive chamber's outside heat exchange blower fan 6.When first temperature measuring equipment detected outdoor environment temperature greater than one first predetermined temperature, outside heat exchange blower fan 6 can be selected to continue to open, and conducted heat with the cross-ventilation that makes full use of higher temperature in the environment and carried out defrosting.When the coil temperature of outdoor heat exchanger 5 during, during for example greater than 5 ℃, can select close chamber's outside heat exchange blower fan 6 greater than a temperature definite value.When first temperature measuring equipment detected outdoor environment temperature and is less than or equal to aforementioned first predetermined temperature, outside heat exchange blower fan 6 can be chosen as immediately closed, to avoid the inner defrosting thermal loss of outdoor heat exchanger 5.This first predetermined temperature for example can be a value between 4 to 10 ℃, is preferably 5 ℃.
6: the aperture of expansion gear 10 should guarantee that suitable cold medium flux passes through, and gets into outdoor heat exchanger 5 and carries out defrosting.
7: the heat pump type air adjusting device also comprises indoor heat exchange blower fan 12 and is used to detect second temperature measuring equipment of the coil temperature of indoor heat exchanger 13.Indoor heat exchange blower motor 11 is used for the inboard heat exchange blower fan 12 of drive chamber.Indoor heat exchange blower fan 12 can cut out operation or keep certain wind speed operation according to the measurement result of second temperature measuring equipment; Guarantee suitable leaving air temp; Guarantee the comfortableness of indoor temperature, and guarantee that a part of heat can get into outdoor heat exchanger 5 and carry out defrosting.Particularly control mode can for: the coil temperature that detects indoor heat exchanger 13 when second temperature measuring equipment greater than one second predetermined temperature, the inboard heat exchange blower fan 12 in control device control room is opened.This second predetermined temperature for example can be a value between 40 to 60 ℃, is preferably 50 ℃.The coil temperature that detects indoor heat exchanger 13 when second temperature measuring equipment is during less than one the 3rd predetermined temperature, and the inboard heat exchange blower fan 12 in control device control room cuts out, and wherein, the 3rd predetermined temperature should be less than or equal to second predetermined temperature.The 3rd predetermined temperature can be in a for example value between 20 to 40 ℃, is preferably 30 ℃.The coil temperature that detects indoor heat exchanger 13 when second temperature measuring equipment is between second predetermined temperature and the 3rd predetermined temperature the time, and the inboard heat exchange blower fan 12 in control device control room keeps original running status.
8: tonifying Qi valve 14 is closed, and does not open in the tonifying Qi loop.
Second defrosting mode is specially:
Under second defrosting mode, branch road valve 3 is closed, and tonifying Qi valve 14 is opened, and four-way change-over valve 2 is in second state.As shown in Figure 5; Under second defrosting mode, refrigerant circulates according to following flow direction: compressor 1 → four-way change-over valve 2 → outdoor heat exchanger 5 → first throttle device 8 → flash vessel 9 → expansion gear 10 → indoor heat exchanger 13 → four-way change-over valve 2 → compressor 1.
When the outdoor heat exchanger 5 of heat pump type air adjusting device needs defrosting, preferably operation under first defrosting mode.Low excessively in environment temperature; Such as indoor environment temperature below 20 ℃; Outdoor environment temperature is below-20 ℃ the time; Perhaps the coil temperature of outdoor heat exchanger 5 can not reach predetermined temperature value after experience a period of time under first defrosting mode, and for example the outdoor heat exchanger coil temperature still can not reach more than 10 ℃ after operation is experienced 8 minutes under first defrosting mode, then moves according to second defrosting mode.
In order to control of the switching of heat pump type air adjusting device from first defrosting mode to second defrosting mode; Control device can also comprise the time detection device that detects the operation duration of heat pump type air adjusting device under first defrosting mode; When the time checkout gear detected the operation duration greater than predetermined amount of time, control device control heat pump type air adjusting device switched to second defrosting mode.Certainly, 8 minutes of being not limited to give an example of predetermined amount of time for example also can be values between 6 to 10 minutes here.
If control device is judged conditioner and need be got into the operation of second defrosting mode, then according to following policy control:
1) be frequency-changeable compressor at compressor 1; When getting into second defrosting mode, compressor 1 needs the process of shutting down once more after accomplishing, starting once more after system's high-low pressure pressure balance through first shutdown, initial start-up, raising frequency and high frequency (for example in 60 to 120Hz scope) operation, defrosting.
When 2) getting into second defrosting mode; Four-way change-over valve 2 commutates in a period of time of back to making first state of air conditioning major loop refrigerating operaton compressor 1 first the shutdown, after compressor 1 is shut down a period of time once more, switches to after defrosting is accomplished to make the air conditioning major loop carry out second state of heating operation.
3) branch road valve 3 is closed to cut off the defrosting branch road.
4) outside heat exchange blower fan 6 is shut down after the heat pump type air adjusting device gets into second defrosting mode, the defrostings in the outdoor heat exchanger 5 is taken away with heat preventing., second defrosting mode determines whether to open operation according to service condition again after finishing.
5) aperture of expansion gear 10 should guarantee that suitable cold medium flux passes through, and guarantees rapid defrosting.
6) in second defrosting mode, lower room temperature fast in order to prevent, indoor heat exchange blower fan 12 cuts out operation in second defrosting mode.
7) in the defrost process, tonifying Qi valve 14 is closed, and does not open in the tonifying Qi loop.
Need to prove that second defrosting mode is that the useful of first defrosting mode replenished, its effect be under the abominable outdoor environmental conditions or the frost situation than increasing the defrosting ability under the serious situation.But, those skilled in the art will envision that, even above conditioner also can only adopt first defrosting mode to carry out defrost operation under harsh environmental conditions, as long as the time long enough of defrost process.
According to above description, the heat pump type air adjusting device of first embodiment is under usual conditions; Can be employed in first defrosting mode of defrosting when heating; Thereby, system less at parts and control mode be simple, practice thrift under the precondition of cost, realizes following effect basically:
1) owing to can under first defrosting mode, move under the common outdoor environmental conditions, promptly can when heating, utilize the sensible heat of refrigerant to defrost, have following advantage:
Four-way change-over valve does not commutate, and compressor is not shut down, and the high temperature refrigerant of directly compressor being discharged feeds outdoor heat exchanger; Thereby can in time realize defrosting apace; Can in 8～10min, accomplish defrosting, interior pipe temperature is higher during owing to defrosting, can obtain hot blast after the defrosting completion at once.Because of compressor shutdown, four-way change-over valve switching-over and defrosting total time of causing are long when adopting traditional defrosting mode, and a complete defrost process needs general 12～15min even longer time could obtain hot blast again, and is bigger to the influence of room comfortableness.
The interior pipe of indoor heat exchanger can maintain higher temperature, not only can not absorb the heat in room, when the heat exchange blower fan is shut down in the indoor; Can dispel the heat to the room through the mode of free convection; In the process of defrosting, fluctuations in indoor temperature is less, and is bigger to the comfortableness contribution in room; Also can be in the process of defrosting the inboard heat exchange blower fan of opening chamber, continue the indoor room heat supply.Can avoid that the temperature because of indoor heat exchanger is absorbing the bigger fluctuation of indoor temperature that the room heat is caused in traditional defrost process below-20 ℃.
The suction temperature of compressor, pressure of inspiration(Pi) obtain very fast the lifting after getting into defrosting, be not easy to cause compressor hydraulic pressure to contract, and compressor operating is more reliable.Can avoid in traditional defrost process, contract because of a large amount of liquid refrigerants accumulates in the compressor hydraulic pressure that causes at the place, suction port of compressor.
2) further, under the outdoor environment harsh conditions, can switch to second defrosting mode (corresponding) and carry out defrost operation, can strengthen defrosting intensity with traditional defrosting mode; Simultaneously owing to adopt second defrosting mode that the cooperation of first defrosting mode can be arranged, thereby needn't be in the defrosting overall process whole process using second defrosting mode, can reduce by second defrosting mode to the full extent and cause the uncomfortable adverse effect of user.
The present invention also provides second embodiment of heat pump type air adjusting device, and specifically referring to Fig. 6, the difference of second embodiment and first embodiment only be to defrost first end of branch road is arranged between four-way change-over valve 2 the 3rd interface and the indoor heat exchanger 13.The defrosting branch road also comprises the check valve that is connected in series with branch road valve 3, and wherein branch road valve 3 is a two-port valve.Need to prove that the reason of check valve setting depends on the requirement of two-port valve to flowing to; If two-port valve to flowing to no requirement (NR) then check valve need not be set, if two-port valve has requirement to the flow direction, then need be provided with check valve and assist two-port valve.
What need special instruction is; Refrigerant flows to all identical with first embodiment with control mode in the air conditioning major loop of the heat pump type air adjusting device of this embodiment; Can solve problem to be solved equally, reach identical technique effect, no longer carry out repetition here.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (10)
1. heat pump type air adjusting device comprises:
The air conditioning major loop; Comprise the compressor (1), four-way change-over valve (2), outdoor heat exchanger (5), first throttle device (8), flash vessel (9), expansion gear (10) and the indoor heat exchanger (13) that connect in order through refrigeration pipe; First interface of said four-way change-over valve (2) is communicated with the port of export of said compressor (1), second interface is communicated with said outdoor heat exchanger (5), the 3rd interface is communicated with said indoor heat exchanger (13), the 4th interface is communicated with the arrival end of said compressor (1), and said four-way change-over valve (2) has to be made first state that said heat pump type air adjusting device carries out heating operation and make said heat pump type air adjusting device carry out second state of refrigerating operaton;
The tonifying Qi loop, an end is connected with said flash vessel (9), and the other end is connected with said compressor (1), and said tonifying Qi loop comprises the tonifying Qi valve (14) that connects through pipeline;
It is characterized in that said heat pump type air adjusting device also comprises the defroster that is used for said outdoor heat exchanger (5) is carried out defrost operation, said defroster is for having the defrosting branch road of branch road valve (3).
2. heat pump type air adjusting device according to claim 1; It is characterized in that first end of said defrosting branch road is connected between the port of export and said four-way change-over valve (2) of said compressor (1), second end is connected between said outdoor heat exchanger (5) and the said first throttle device (8).
3. heat pump type air adjusting device according to claim 1; It is characterized in that first end of said defrosting branch road is connected between said four-way change-over valve (2) and the said indoor heat exchanger (13), second end is connected between said outdoor heat exchanger (5) and the said first throttle device (8).
4. according to claim 2 or 3 described heat pump type air adjusting devices, it is characterized in that said defrosting branch road also comprises second throttling arrangement (4) that is connected in series with said branch road valve (3).
5. heat pump type air adjusting device according to claim 3 is characterized in that, said tonifying Qi loop also comprises the check valve (15) of connecting and being provided with said tonifying Qi valve (14).
6. heat pump type air adjusting device according to claim 1; It is characterized in that; Said heat pump type air adjusting device comprises that also being used to control said heat pump type air adjusting device switches said outdoor heat exchanger (5) is carried out the control device of defrost operation between different defrosting control models, said defrosting control model comprises:
First defrosting mode, under said first defrosting mode, said branch road valve (3) is opened, and said four-way change-over valve (2) is in said first state;
Second defrosting mode, under said second defrosting mode, said branch road valve (3) is closed, and said four-way change-over valve (2) is in said second state.
7. heat pump type air adjusting device according to claim 6 is characterized in that, said heat pump type air adjusting device also comprises outside heat exchange blower fan (6);
Said control device also comprises first temperature measuring equipment that is used to detect outdoor environment temperature; Under said first defrosting mode, said control device detects said outdoor environment temperature according to said first temperature measuring equipment and controls said outside heat exchange blower fan (6) and open or cut out.
8. heat pump type air adjusting device according to claim 6 is characterized in that, said heat pump type air adjusting device also comprises indoor heat exchange blower fan (12);
Said control device also comprises second temperature measuring equipment of the coil temperature that is used to detect said indoor heat exchanger (13); Under said first defrosting mode, the coil temperature that said control device detects said indoor heat exchanger (13) according to said second temperature measuring equipment is controlled said indoor heat exchange blower fan (12) and is opened or close.
9. heat pump type air adjusting device according to claim 6 is characterized in that, said compressor (1) continuous service under said first defrosting mode.
10. heat pump type air adjusting device according to claim 6; It is characterized in that; Said control device also comprises the time detection device that detects the operation duration of said heat pump type air adjusting device under said first defrosting mode, and said control device detects said operation duration according to said time detection device and controls said heat pump type air adjusting device and switch to said second defrosting mode from said first defrosting mode.
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| CN2012201472472U CN202546973U (en) | 2012-04-09 | 2012-04-09 | Heat pump type air conditioning device |
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| CN2012201472472U CN202546973U (en) | 2012-04-09 | 2012-04-09 | Heat pump type air conditioning device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioning device |
| CN105143779A (en) * | 2013-04-10 | 2015-12-09 | 三菱电机株式会社 | Dehumidification device |
| CN105157173A (en) * | 2015-08-31 | 2015-12-16 | 珠海格力电器股份有限公司 | Middle enthalpy increase amount control method and system for double-stage enthalpy-increasing heat pump system |
| CN106288207A (en) * | 2016-08-19 | 2017-01-04 | 芜湖美智空调设备有限公司 | The control method of mobile air conditioner wind pushing temperature and device |
| CN110793156A (en) * | 2019-11-19 | 2020-02-14 | 宁波奥克斯电气股份有限公司 | Air conditioner heating over-temperature protection control method and device and air conditioner |
| CN113776142A (en) * | 2021-09-09 | 2021-12-10 | 西安交通大学 | Heat pump type air conditioner refrigeration cycle system and control method thereof |
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2012
- 2012-04-09 CN CN2012201472472U patent/CN202546973U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363707A (en) * | 2012-04-09 | 2013-10-23 | 珠海格力电器股份有限公司 | Heat pump type air conditioning device |
| CN103363707B (en) * | 2012-04-09 | 2016-03-23 | 珠海格力电器股份有限公司 | Heat pump type air adjusting device |
| CN105143779A (en) * | 2013-04-10 | 2015-12-09 | 三菱电机株式会社 | Dehumidification device |
| CN105143779B (en) * | 2013-04-10 | 2017-12-22 | 三菱电机株式会社 | Dehydrating unit |
| CN105157173A (en) * | 2015-08-31 | 2015-12-16 | 珠海格力电器股份有限公司 | Middle enthalpy increase amount control method and system for double-stage enthalpy-increasing heat pump system |
| CN106288207A (en) * | 2016-08-19 | 2017-01-04 | 芜湖美智空调设备有限公司 | The control method of mobile air conditioner wind pushing temperature and device |
| CN110793156A (en) * | 2019-11-19 | 2020-02-14 | 宁波奥克斯电气股份有限公司 | Air conditioner heating over-temperature protection control method and device and air conditioner |
| CN110793156B (en) * | 2019-11-19 | 2021-12-14 | 宁波奥克斯电气股份有限公司 | Air conditioner heating over-temperature protection control method and device and air conditioner |
| CN113776142A (en) * | 2021-09-09 | 2021-12-10 | 西安交通大学 | Heat pump type air conditioner refrigeration cycle system and control method thereof |
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