CN202101335U - Air conditioner using combustible refrigerant - Google Patents
Air conditioner using combustible refrigerant Download PDFInfo
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- CN202101335U CN202101335U CN2011201720124U CN201120172012U CN202101335U CN 202101335 U CN202101335 U CN 202101335U CN 2011201720124 U CN2011201720124 U CN 2011201720124U CN 201120172012 U CN201120172012 U CN 201120172012U CN 202101335 U CN202101335 U CN 202101335U
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Abstract
An air conditioner using combustible refrigerant comprises a control component, an indoor machine positioned on the inner side of a room, and an outdoor machine positioned on the outer side of the room, wherein, the indoor machine and the outdoor machine are connected into a circulation loop through a pipeline; the indoor machine comprises an indoor heat exchanger, and the outdoor machine comprises an outdoor heat exchanger; both an electromagnetic valve for controlling the on-off of the pipeline and a pipeline switching device for controlling the change of the refrigerant flow path are arranged on the pipeline between the indoor heat exchanger and the outdoor heat exchanger and electrically connected with the control part respectively; the on-off of the electromagnetic valve can be judged through the signals given out by the control component according to the working state of the air conditioner, and the electromagnetic valve is turned on when electrified; and a refrigerant leak detector is arranged near an electric control box or/and an air outlet of the indoor machine and is electrically connected with the control component through a signal wire. The air conditioner provided by the utility model has the characteristics of simple structure, flexibility in operation, high safety degree and wide application range.
Description
Technical field
The utility model relates to a kind of air-conditioner, particularly a kind of air-conditioner that uses flammable refrigerant.
Background technology
Since Montreal protocol was signed, various countries had launched the research of the alternative refrigerant of R22 one after another, and present main alternative refrigerant is R410A, and the ODP of this R410A refrigerant is zero, but GWP is higher.Along with the pay attention to day by day of international community to greenhouse effects, need to seek ODP and be zero, the less refrigerant of GWP, and the refrigerant that meets this requirement there are R32, R290, R161 etc., still, these ODP are zero, the less refrigerant of GWP all has combustibility.
Have the greateset risk that flammable refrigerant is applied on the domestic air conditioner and be that the cold media gas that takes place to leak has combustibility in certain concentration range above-mentioned.And, the risk of lighting flammable cold media gas is arranged owing in the room a lot of household electrical appliance are often arranged, in the room of sealing even have a risk of the blast of producing.
For overcoming above-mentioned shortcoming; Chinese patent document number CN201582948U discloses a kind of air-conditioner on September 15th, 2010; This air-conditioner uses the R290 refrigerant, and this scheme is the magnetic valve that the control piper break-make is set on the pipeline that connects between indoor set heat exchanger and the off-premises station heat exchanger, cuts off indoor set and off-premises station heat exchanger through closing magnetic valve; Even make indoor set leak; Refrigerant in the indoor heat exchanger that leakage rate also has only indoor set and the pipeline that is connected, thus leakage rate reduced, the security that improves air-conditioning.Though this air-conditioner can reduce refrigerant in the indoor leakage rate,, the coolant quantity that exists in the tube connector of indoor and outdoor on the one hand is still more, when particularly running into the air-conditioner of lengthening pipe arrangement, coolant quantity remaining in this tube connector can be more; On the other hand when indoor set just coolant leakage occurs; Can reclaim a part of indoor-unit cooling-medium with compressor fully; Do not need the refrigerant of all tube connectors and indoor set is all leaked in the room, thereby increase behind the coolant leakage risk of internal combustion in the room.
The utility model content
The purpose of the utility model aims to provide the air-conditioner of a kind of simple and reasonable, flexible operation, the flammable refrigerant of use that safe coefficient is high, applied widely, to overcome weak point of the prior art.
A kind of air-conditioner that uses flammable refrigerant by this purpose design; The off-premises station that comprises control assembly, is positioned at the indoor set of indoor and is positioned at the outside; Said indoor set and off-premises station connect into closed circuit through pipeline; Indoor set comprises indoor heat exchanger; Off-premises station comprises outdoor heat exchanger, the pipeline switching device shifter that the magnetic valve that the pipeline that is connected between said indoor heat exchanger and the outdoor heat exchanger is provided with the control piper break-make and control refrigerant flow change, and said magnetic valve and pipeline switching device shifter are electrically connected with control assembly respectively; The break-make of said magnetic valve provides signal by control assembly according to the duty of air-conditioning; Conducting during energising is characterized in that being provided with the refrigerant leak detector that is used to detect refrigerant concentration near the electric-controlled box of said indoor set and/or near the air outlet, and the refrigerant leak detector is electrically connected with control assembly through holding wire.
Said magnetic valve and pipeline switching device shifter are arranged on indoor or outside.
Said pipeline switching device shifter is the two-port valve or the cross valve of triple valve, two parallel connections.
The refrigerant that uses in the said air-conditioner is flammable refrigerant.
The utility model is through increasing refrigerant leak detector, pipeline switching device shifter and magnetic valve; And the break-make of reasonable control piper switching device shifter and magnetic valve; Make and take place in the indoor set running to let more refrigerants flow back to off-premises station behind the coolant leakage as far as possible; Thereby reduce the leakage rate of flammable refrigerant in the room, improve the security reliability of air-conditioner.
Air-conditioner in the utility model can safety the flammable refrigerant of use; Guarantee after the indoor runs into coolant leakage, can let more refrigerant flow back to off-premises station; Reduce the coolant leakage amount in the room, reduce the risk of room internal combustion, ensure user's personal safety and safety of property.
The utlity model has simple and reasonable, flexible operation, high, the advantage of wide range of application of safe coefficient.
Description of drawings
Fig. 1 is the structural representation of the utility model first embodiment.
Fig. 2 is the structural representation of the utility model second embodiment.
Fig. 3 is the control method flow chart of the utility model.
Among the figure: 100 is indoor set, and 101 is the refrigerant leak detector, and 102 is indoor heat exchanger, and 103 is the indoor fan motor; 200 is off-premises station, and 201 is compressor, and 202 is cross valve, and 203 is the outdoor fan motor; 204 is outdoor heat exchanger, and 205 is capillary, and 206 is triple valve, and 207 is the liquid valve; 208 is air valve, and 209 is magnetic valve, and 300 is control assembly
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
First embodiment
Referring to Fig. 1 and Fig. 3; This uses the air-conditioner of flammable refrigerant; The off-premises station 200 that comprises control assembly 300, is positioned at the indoor set 100 of indoor and is positioned at the outside; Said indoor set 100 and off-premises station 200 connect into closed circuit through pipeline, and indoor set 100 comprises indoor heat exchanger 102, and off-premises station 200 comprises outdoor heat exchanger 204; The pipeline switching device shifter that the magnetic valve 209 that the pipeline that is connected between indoor heat exchanger 102 and the outdoor heat exchanger 204 is provided with the control piper break-make and control refrigerant flow change; Magnetic valve 209 is electrically connected with control assembly respectively with the pipeline switching device shifter, and the break-make of magnetic valve 209 provides signal, conducting during energising by control assembly according to the duty of air-conditioning; Be provided with the refrigerant leak detector 101 that is used to detect refrigerant concentration near the electric-controlled box of indoor set 100 and/or near the air outlet, this refrigerant leak detector 101 is electrically connected with control assembly 300 through holding wire.
In the present embodiment, the pipeline switching device shifter is selected triple valve 206 for use.Below be that example is elaborated with the triple valve.
Off-premises station 200 comprises compressor 201, cross valve 202, outdoor heat exchanger 204, capillary 205, triple valve 206, liquid valve 207, air valve 208, the magnetic valve 209 that is connected successively by pipeline.The first interface a of triple valve 206 is connected with an end of capillary 205, and the second interface b of triple valve 206 is connected with liquid valve 207, and the 3rd interface c of triple valve 206 is connected with an end of magnetic valve 209.The other end of magnetic valve 209 is connected with air valve 208.Off-premises station 200 is connected with indoor heat exchanger 102 in the indoor set 100 through liquid valve 207 and air valve 208.
Be provided with the refrigerant leak detector 101 and indoor fan motor 103 that is used to detect the R290 refrigerant at indoor heat exchanger 102 near near electric-controlled box.
The first interface a and the 3rd interface c of triple valve 206 are connected between magnetic valve 209 and the compressor 201.Be used to control the holding wire that triple valve 206 and magnetic valve 209 start-stops use and be electrically connected with control assembly 300 respectively, refrigerant leak detector 101 is connected on the control assembly 300 through holding wire.After triple valve 206 energisings, the first interface a and the second interface b conducting; After the outage, the first interface a and the 3rd interface c conducting.
When air-conditioner during in normal refrigeration; Triple valve 206 energisings; First path of triple valve 206 is communicated with; The first interface a and the second interface b that are triple valve 206 are communicated with, and flammable refrigerant carries out heat exchange from flowing to outdoor heat exchanger 204 through cross valve 202 after compressor 201 is discharged, then after capillary 205 throttlings again through the first interface a and the second interface b of triple valve 206, cross liquid valve 207 to indoor heat exchanger 102 evaporation of absorbing heat; Pass through indoor and outdoor connecting pipe and air valve 208 then, get back to compressor 201 through behind the magnetic valve 209 at last.
After refrigerant leak detector 101 detects indoor set 100 generation coolant leakages; Triple valve 206 outages, first path of triple valve 206 breaks off, and the alternate path of triple valve 206 is communicated with; Be the first interface a and the 3rd interface c conducting of triple valve 206; Refrigerant is got back to compressor 201 from the first interface a of triple valve 206 via the 3rd interface c, and meanwhile, the most of refrigerant in tube connector and the indoor heat exchanger 102 flows back to compressor 201 behind air valve 208, magnetic valve 209.
T1 is after the time for process; Magnetic valve 209, compressor 201 and outdoor fan motor 203 all cut off the power supply; The display board of air-conditioner shows failure code and buzzer warning; The operation sequence of air-conditioner is locked, and air-conditioner does not process the instruction that receives, and indoor fan motor 103 continues to run up at this moment; Behind forced-ventilated after a while, whole air-conditioner outage.The time of said forced-ventilated is t0, t0 >=15 second.Said t1 >=10 second.
When air-conditioner when normally heating; Triple valve 206 energisings; First path of triple valve 206 is communicated with; Be the first interface a and the second interface b conducting of triple valve 206, flammable refrigerant is discharged behind cross valve 202, magnetic valve 209 and air valve 208 from compressor 201, flows into indoor heat exchanger 102 and carries out heat exchange; Flammable refrigerant after the heat exchange evaporates to outdoor heat exchanger 204 after triple valve 206 second interface b, the first interface a and capillary 205 throttlings through liquid valve 207 backs, after cross valve 202 is got back to compressor 201.
After refrigerant leak detector 101 detects indoor set 100 generation coolant leakages; Cross valve 202 outages; The refrigerant path is switched in triple valve 206 outages; First path of triple valve 206 breaks off, and the alternate path in the triple valve 206 is communicated with, and promptly first interface a of triple valve 206 and the 3rd interface c are communicated with; Refrigerant is got back to compressor 201 through the first interface a and the 3rd interface c from triple valve 206 behind outdoor condenser 203 and the capillary 205 after discharging from compressor 201, and most of refrigerant of tube connector and indoor heat exchanger 102 flows back to compressor 201 after air valve 208 is crossed magnetic valve 209 simultaneously.
T1 is after the time for process; Magnetic valve 209, compressor 201 and outdoor fan motor 203 all cut off the power supply; The display board of air-conditioner shows failure code and buzzer warning; The operation sequence of air-conditioner is locked, and air-conditioner does not process the instruction that receives, and indoor fan motor 103 continues to run up at this moment; Behind forced-ventilated after a while, whole air-conditioner cuts off the power supply again.The time of said forced-ventilated is t0, t0 >=15 second.Said t1 >=10 second.
Below in conjunction with Fig. 3 the control method of this air-conditioner is described:
After air-conditioner powers on, at first by refrigerant leak detector 101 detection systems whether secondary refrigerant leakage is arranged, the system here comprises air-conditioner and room, then the result is fed back to control assembly 300.When refrigerant leak detector 101 detects system coolant leakage is arranged; Then the air-conditioner air-conditioner does not process the instruction that receives; Air-conditioner shows failure code and buzzer warning; And the indoor fan motor 103 superpower wind runnings of air-conditioner, behind forced-ventilated after a while, whole air-conditioner cuts off the power supply again; After refrigerant leak detector 101 does not detect coolant leakage, can be to carry out subsequent operation.The time of forced-ventilated is t0, t0 >=15 second.Here, can be 60 seconds with the time set of forced-ventilated.
When air-conditioner during in the refrigerating operaton pattern; At first switch on to triple valve 206 and magnetic valve 209 by control assembly 300; In service when refrigerant leak detector 101 detects indoor set leakage refrigerant, triple valve 206 outages, indoor fan motor 103 is with superpower wind operation simultaneously.Move through t1 after the time with superpower wind at indoor fan motor 103, magnetic valve 209, compressor 201 and 203 outages of outdoor fan motor, the display board of air-conditioner shows failure code, buzzer warning.Said t1 >=10 second.Can t1 be set at 30～60 seconds here.At this moment, indoor fan motor 103 continues to run up; Behind forced-ventilated after a while, whole air-conditioner outage; After air-conditioner re-powers, still show failure code, the user can't start shooting, and need can normally be moved after to the program release by the maintenance personal.Can the time t0 of forced-ventilated be set at 30 seconds here.
When air-conditioner during in the heating operation pattern; At first control assembly 300 is to triple valve 206 and magnetic valve 209 energisings, and in service after refrigerant leak detector 101 detects indoor set leakage refrigerant, cross valve 202 cuts off the power supply; Triple valve 206 outages, indoor fan motor 103 is with superpower wind operation simultaneously.Move through t1 after the time with superpower wind at indoor fan motor 103, magnetic valve 209, compressor 201 and outdoor motor 203 outages, the display board of air-conditioner shows failure code, buzzer warning.Said t1 >=10 second.Can t1 be set at 30～60 seconds here.At this moment, the operation sequence of air-conditioner is locked, and air-conditioner does not process the instruction that receives, and indoor fan motor 103 continues to run up at this moment; Behind forced-ventilated after a while, whole air-conditioner outage; Still show failure code after air-conditioner re-powers, the user can't start shooting, and need can normally be moved after to the program release by the maintenance personal.Can the time t0 of forced-ventilated be set at 30 seconds here.
Second embodiment
Referring to Fig. 2-Fig. 3, the magnetic valve 209 in the present embodiment is arranged on the indoor with the pipeline switching device shifter.
All the other are not stated part and see first embodiment, no longer repeat.
Above-mentioned listed concrete implementation is nonrestrictive, and to one skilled in the art, in not departing from the utility model scope, various improvement and the variation carried out all belong to the protection domain of the utility model.
Claims (4)
1. air-conditioner that uses flammable refrigerant; The off-premises station (200) that comprises control assembly (300), is positioned at the indoor set (100) of indoor and is positioned at the outside; Said indoor set (100) connects into closed circuit with off-premises station (200) through pipeline; Indoor set (100) comprises indoor heat exchanger (102); Off-premises station (200) comprises outdoor heat exchanger (204), and the pipeline that is connected between said indoor heat exchanger (102) and the outdoor heat exchanger (204) is provided with the magnetic valve (209) of control piper break-make and the pipeline switching device shifter that the control refrigerant flow changes, and said magnetic valve (209) and pipeline switching device shifter are electrically connected with control assembly respectively; The break-make of said magnetic valve (209) provides signal by control assembly according to the duty of air-conditioning; Conducting during energising is characterized in that being provided with the refrigerant leak detector (101) that is used to detect refrigerant concentration near the electric-controlled box of said indoor set (100) and/or near the air outlet, and refrigerant leak detector (101) is electrically connected with control assembly (300) through holding wire.
2. the air-conditioner of the flammable refrigerant of use according to claim 1 is characterized in that said magnetic valve (209) and pipeline switching device shifter are arranged on indoor or outside.
3. the air-conditioner of the flammable refrigerant of use according to claim 1 is characterized in that said pipeline switching device shifter is the two-port valve or the cross valve of triple valve (206), two parallel connections.
4. according to the air-conditioner of the flammable refrigerant of the arbitrary described use of claim 1 to 3, it is characterized in that the refrigerant that uses in the said air-conditioner is flammable refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201720124U CN202101335U (en) | 2011-05-26 | 2011-05-26 | Air conditioner using combustible refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201720124U CN202101335U (en) | 2011-05-26 | 2011-05-26 | Air conditioner using combustible refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101335U true CN202101335U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201720124U Expired - Lifetime CN202101335U (en) | 2011-05-26 | 2011-05-26 | Air conditioner using combustible refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213463A (en) * | 2011-05-26 | 2011-10-12 | 广东美的电器股份有限公司 | Air conditioner using combustible refrigerant and control method thereof |
| CN110469951A (en) * | 2019-08-19 | 2019-11-19 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner, storage medium and air conditioner |
-
2011
- 2011-05-26 CN CN2011201720124U patent/CN202101335U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213463A (en) * | 2011-05-26 | 2011-10-12 | 广东美的电器股份有限公司 | Air conditioner using combustible refrigerant and control method thereof |
| CN110469951A (en) * | 2019-08-19 | 2019-11-19 | 青岛海尔空调器有限总公司 | A kind of control method of air conditioner, storage medium and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20131204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131204 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |
|
| CX01 | Expiry of patent term |