CN1057155C - Air conditioning apparatus - Google Patents
Air conditioning apparatus Download PDFInfo
- Publication number
- CN1057155C CN1057155C CN 93116414 CN93116414A CN1057155C CN 1057155 C CN1057155 C CN 1057155C CN 93116414 CN93116414 CN 93116414 CN 93116414 A CN93116414 A CN 93116414A CN 1057155 C CN1057155 C CN 1057155C
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- Prior art keywords
- compressor
- aircondition
- valve
- passing valve
- refrigeration
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
Air conditioning device that achieves a reduction of energy consumption by operating in cooling form, it acts with high capacity by operating in heating form, and has an improved capacity by starting in cooling operation; it includes a compressor (1), a tetra-directional valve (2) with a piston (22) that has a by-pass steam port (8), an external heat exchanger (3), a pressure release device (4), and an internal heat exchanger (5), connected through coolant tubes (6), a by-pass tube (9) that connects the tetra-directional valve to the suction tube (6d) of the compressor, through a by-pass valve (7), and a control device for closing the by-pass valve during the heating operation, opening said by-pass valve during the cooling operation, and closing the by-pass valve during the starting of the cooling operation and opening said by-pass valve during the subsequent normal operation.
Description
The present invention relates to a kind of heat pump type air conditioning apparatus that is used for refrigeration and heating, relate in particular to a kind of constant speed aircondition with constant rotational speed compressor, its refrigeration and heating power can change on demand.
Under the situation of the heat pump type air conditioning apparatus that is used for refrigeration and heating, for example a kind of constant speed room air conditioner, the rotating speed of compressor can not change, thereby its different a kind of variable aircondition of its compressor rotary speed with change-over switch in this respect.Therefore, for the air-conditioner of big heating power is provided, must adopt high-power compressor.
Yet,, the too big problem of power consumption when the refrigeration operation is arranged with regard to high-power compressor.In other words, under the situation of constant speed aircondition, can not between the refrigeration operational period, reduce power consumption and improve the heating ability.
In addition, knew already that for example a kind of was the disclosed air-conditioner that is used for heating and refrigeration in the Japan Patent of examining of 2-263070 at publication number.This kind aircondition comprises 100, one indoor heat converters 109 of 104, one cross valves of a compressor, pressure relief device 129 and an outdoor heat converter 110, and they are connected by some refrigeration pipe fittings.Bypass pipe 114 connects together the pressure conversion chamber R of cross valve 100 with the air intake duct 106 of compressor 104.Control magnetic valve 115 as by-passing valve is set in this bypass pipe 114.
Structure at the cross valve 100 of this air-conditioner that is used for heating and refrigeration will be illustrated in greater detail.The inner space of the cylinder-shaped body 101 of cross valve 100 is divided into a high pressure chest R and pressure conversion chamber R by piston 112.Two conduits 107,108 of the blast pipe 105 of compressor 104 and heat exchanger are connected with high pressure chest R.Relative both sides at the air intake duct 106 of compressor 104 are provided with conduit 107 and 108.Be used for switching spool valve element 127 that these pipes flow and be connected in piston 112 and be provided with a spring 113, so that push piston 112 to high-pressure side R.
Shift under the situation of high pressure chest R by spring 113 at piston 112, spool valve element is communicated with the suction side 106 of outdoor heat converter 110 with compressor 104, like this, indoor heat converter 109 connects with the exhaust side 105 of compressor 104 through high pressure chest R, and the pressure conversion chamber R of compressor 104 is cut off with suction side 106 by control magnetic valve 115.
When energising, control magnetic valve 115 is opened, make pressure conversion chamber R with pressing the suction side 106 of combining machine 104 to be communicated with, like this, because the differential pressure between high pressure chest R and the pressure conversion chamber R, make piston 112 overcome the elastic force of spring 113 and move, and, spool valve element 127 is communicated with the suction side 106 of indoor heat converter 109 with compressor 104, thereby presses chamber R to be communicated with the exhaust side 105 of compressor 104 through handing over outdoor heat converter 110.
Therefore, be the disclosed air-conditioner that is used for heating and refrigeration in the Japan Patent of examining of 2-263070 at publication number, when the heating operation, can accelerate starting operation, same, can finish the conversion that is recycled to refrigerant cycles from heating with the short time.
As another general example, represented that in Fig. 5 a kind of is disclosed aircondition in the Japanese Utility Model of examining of 60-59876 at publication number.This device comprises a compressor 201, one cross valves 202, one outdoor heat converters 203 equally, a pressure relief device 204 and an indoor heat converter 205, and they are connected together by some coolant tubes 206, and basically to work with the same mode of above-mentioned general example.
Yet, in this aircondition, in the piston 212 of cross valve 202, make a gas vent 218 that is used to be communicated with cylindrical cavity 213 and valve pocket 210, so that piston 202 can slide lentamente.In addition, in valve pocket member 208, be provided with a valve member 219, close gas vent 218 when moving to right-hand member with convenient piston 212.
Utilize the member of this general example, can obtain a kind of aircondition that comprises the cross valve of a simple structure, and its manufacturing valency can reduce significantly.In addition, the simplification of cross valve can make the size of aircondition dwindle.
Yet in above-mentioned general example, this constant speed aircondition can not be with low power consumption work between the refrigeration operational period, and can not in addition, in the refrigeration operation time started, can not increase its load with big load work at heating period.
In other words, the constant speed aircondition with constant-speed compressor has a shortcoming, and at refrigeration and heating period, its output can not be by the working condition controlled change.
The present invention has solved the variety of problems of above-mentioned conventional art.Therefore, an object of the present invention is to provide a kind of aircondition simple in structure, it has realized reducing power consumption between the refrigeration operational period, and has high power performance between the heating operational period, and need not adopt special device.
Another object of the present invention provides a kind of aircondition that improves load when the refrigeration operation begins.
In order to reach first purpose, comprise a compressor according to aircondition of the present invention; One cross valve, it is separated into a high pressure chest and a pressure conversion chamber by a piston with a by-pass port; One indoor heat converter, a pressure relief device and an outdoor heat converter, they are linked together by some refrigerating pipes.The pressure conversion chamber of cross valve is connected in the air intake duct side of compressor by means of a bypass pipe through a by-passing valve.In addition, be provided with control device, so that control kind of refrigeration cycle at the refrigeration duration of work by opening by-passing valve by closing bypath valve at the heating duration of work.
In order to reach second purpose, comprise the control device that is used for when the refrigeration operation begins, closing by-passing valve and opens by-passing valve in normal work period subsequently by aircondition of the present invention.
Adopt above-mentioned member, when beginning, when by-passing valve cuts out, stopped, therefore, can improve the load of the operation of freezing when beginning from cross valve internal bypass mouth seepage refrigerant in the refrigeration operation.Equally,, when by-passing valve is opened, finished circulation, made refrigerant, like this, not only suppressed work and loaded with, and suppressed the system power consumption through the bypass pipe seepage from the refrigerant of cross valve internal bypass mouth at the refrigeration operational period.
On the other hand, because by-passing valve cuts out between the heating operational period, stopped from cross valve internal bypass mouth seepage cooling agent, thereby obtained big heating ability.
In this way, when switching by-passing valve, produce and stop seepage, might provide a kind of and need not adopt special device when the refrigeration operation, to be easy to reach to reduce power consumption and obtain the aircondition of high-power performance during in the heating operation from by-pass port.
Fig. 1 is the system diagram of refrigerant cycles member of the aircondition of expression one embodiment of the invention;
Fig. 2 is the control calcspar of aircondition shown in Figure 1;
Fig. 3 is the sequential steps flow chart of expression operation control;
Fig. 4 is the sectional elevation that expression is in the common aircondition in the heating job state;
Fig. 5 is the cross valve that is used for kind of refrigeration cycle of another common air-conditioning device of expression and the sectional elevation of kind of refrigeration cycle;
Below with reference to Fig. 1 to 3 narration one embodiment of the present of invention.In Fig. 1 and 2, identical parts are with common labelled notation.
The heat pump type air conditioning apparatus that is used for refrigeration and heating shown in Fig. 1 comprises permanent rotating speed compressor 1, one cross valve 2, one outdoor heat converters 3, a pressure relief device 4 and an indoor heat converter 5, and they are connected together by coolant tubes 6.One bypass pipe 9 is set, it connects the air intake duct 6d of cross valve 2 with compressor 1 through by-passing valve 7, cryogen flow Fig. 1 that this by-passing valve is controlled in the by-pass port of making in the piston 22 of cross valve 28 also represents an outdoor fan motor 3a, an indoor fan motor 5a and a room temperature detector 16.In Fig. 1, the flow direction of refrigerant when solid arrow is represented to freeze operation, and the flow direction of dotted arrow refrigerant when representing the heating operation.
The cross valve 2 of in Fig. 1, representing a kind of structure of conventional, well-known in a simplified manner.Cross valve 2 comprises a spool member 21, piston 22, one springs, 23, one high pressure chests 24 and a pressure conversion chamber 25.More particularly, the inner space of the cylinder-shaped body of cross valve 2 is separated into high pressure chest 24 and pressure conversion chamber 25 by piston 22.The blast pipe 6a of compressor 1, the air intake duct 6d of compressor 1, with the conduit 6b that outdoor heat converter 3 is communicated with, the conduit 6c that is communicated with indoor heat converter 5 all is connected in high pressure chest 24.Two opposite sides at air intake duct 6d is provided with conduit 6b and 6c.Be used to switch the spool member 21 that flows in these pipes as main valve and be connected in piston 22.Spring 23 orders about piston 22 and moves to high pressure chest 24.
Shifted to by spring 23 at piston 22 under the situation of (being represented by dotted lines) of high pressure chest 24, be connected in the air intake duct 6d of compressor 1 through spool member 21 with the conduit 6b of outdoor heat converter 3 connections, like this, conduit 6d with indoor heat converter 5 connections, like this, the conduit 6c that is communicated with indoor heat converter 5 is connected in the blast pipe 6a of compressor 1 through high pressure chest 24, thereby constitutes a heating circulation by the dotted arrow indication.
Between normal heating operational period, by-passing valve 7 is cutting out.
On the other hand, when by-passing valve 7 is opened, pressure conversion chamber 25 is connected in the air intake duct 6d of compressor 1 through bypass pipe 9, and piston 22 is because between high pressure chest 24 and the pressure conversion chamber 25, promptly the air intake duct of compressor and the differential pressure between the blast pipe make it overcome the power of spring 23 and move (shown in practice).Therefore the conduit 6c that is communicated with indoor heat converter is connected in the air intake duct 6d of compressor 1 through spool member 21, simultaneously, the conduit 6b that is communicated with outdoor heat converter 3 is connected in the blast pipe 6a of compressor 1 through high pressure chest 24, thereby constitutes the refrigerant cycles with the dotted arrow indication.
Fig. 2 represents to be used for according to present embodiment the structure of control system of the heat pump type air conditioning apparatus of refrigeration and heating.
As shown in Figure 2, this aircondition 11 is divided into an indoor units 12 and an outdoor unit 13 usually.The critical piece of indoor units 12 is control sections 14, and it is as the control centre of indoor units 12 and outdoor unit 13.Indoor units 12 also comprises a running/stop button 15, in order to turn round or to stop aircondition 11, this button is located at the manually-operated part, the latter be used for remote control be suitable for detecting the room temperature detector 116 of room temperature and be suitable for driving indoor heat converter 5 fan indoor fan motor 5a or be used for such as remote control.
On the other hand, outdoor unit 13 comprises the compressor of hiding as 1 the heart of aircondition 1, be used for drive chamber's outer heat-exchanger 3 fan outdoor fan motor and as the by-passing valve 7 of the important entity of the present invention.
Narrate the control operation of this embodiment referring now to the flow chart of Fig. 3.Operation number in the stream preface figure of Fig. 3 is drawn together with round parentheses below.
At first, whether the control section 14 verification running/stop buttons 15 of aircondition 11 connect (S).If it is connected, control section 14 judges whether aircondition 11 stops (S).If not stopping, if promptly aircondition 11 is turning round, control section 14 program that stops operation then, for example, it stops compressor 1, indoor fan motor 5a and outdoor fan motor 3a (S).
If aircondition 11 stops, then room temperature detector 16 detects room temperature (S).Subsequently, this greenhouse is done than changeing (S) with the needed a certain predetermined temperature in the space of wanting air-conditioning.If this room temperature is lower than predetermined temperature, promptly, then cut off by-passing valve 7 if the temperature in the space of air-conditioning must raise, outdoor fan motor 3a connects, and presses the machine of combining 1 to connect and indoor fan motor 5a connection, thus beginning heating operation (S).So this moment, by-passing valve 7 cut out.
When room temperature was higher than predetermined temperature, by-passing valve 7 was connected, and outdoor fan motor 3a connects, and compressor 1 is connected and indoor fan motor 5a connects, thereby begins to freeze operation (S).
In this refrigeration operation, control section 14 is waited for to cross valve 2 always and is finished its switching (S) and by-passing valve 7 is cut off (S).When by-passing valve 7 was connected (operation S) under this state, the air intake duct side of compressor 1 was received in the pressure conversion chamber 25 of cross valve 2, and has certain low pressure, and piston 22 is owing to the pressure reduction between the low pressure in high pressure in the high pressure chest and the pressure conversion chamber 25 moves.At this moment, the spool member 21 as the main valve member in the cross valve 2 moves along with piston 22 and switching.
Then, the operation of S9 is closed by-passing valve 7, and like this, refrigerant is the 8 place's seepages of the by-pass port in cross valve 2 no longer.Yet, because spool member 21 has high pressure and has low pressure at downside at upside, so because the pressure reduction between them, spool valve element 21 is inhaled at downside at the upside pressurized, to keep its position.Therefore, this aircondition 11 can be with maximum load work.In the case, the time of used switching by-passing valve 7 preferably should be about more than 3 seconds or 3 seconds in operation S8.
At this moment, the control assembly 14 of aircondition 11 obtains a room temperature from the room temperature temperature detector, and monitoring room temperature detector 16 or similar device are lower than the temperature of setting or go over (S10) up to the time of setting up to detected room temperature.After this, by-passing valve 7 is switched on (S11).Subsequently, by-passing valve 7 is opened, and the by-pass port 8 of refrigerant in cross valve 2 circulates, like this, high pressure chest 24 heel pressure conversion chambeies 25 are connected, and refrigerant leaks into the air intake duct 6d of compressor 1 through bypass pipe 9, thereby not only suppress service load, and suppress power consumption.Like this, this aircondition 11 just is restricted with the scope of maximum load running.In the case, consider energy-conservation factor, the described scheduled time, will be begun to judge that last stress is about 50 seconds certainly by the ambient-temp-stable of air-conditioning.
According to this embodiment, when by-passing valve 7 is cut off (S), the circulation of the refrigerant at by-pass port 8 places in cross valve 2 just stops preventing the refrigerant seepage between the refrigeration operational period, so, can improve for example load when the operation of freezing begins.In addition during refrigeration when by-passing valve 7 is connected, the refrigerant cycle at by-pass port 8 places from cross valve 2 in is just carried out so that refrigerant oozes lets out, thus inhibition power consumption and service load.
On the other hand, because be cut off at heating period by-passing valve 7, the refrigerant cycle at by-pass port 8 places in cross valve 2 just stops therefore obtaining big heating power to prevent the refrigerant seepage.
Mode is according to this utilized by-pass port 8 when switching cross valve 2, might provide a kind of special device that need not adopt to be easy to when the refrigeration operation to reach that power consumption reduces and be easy to obtain the aircondition of high power performance during in the heating operation.
In the above-described embodiment, control example in having the constant speed aircondition of permanent rotating speed compressor has been described.Yet the present invention can be applied to equally comprise that one has the aircondition of the speed variable compressor of horizontal steering gear.For example, when need not greatly cold power, can be with the low-power operation of freezing, and this device repetitiousness ground need not be connected and cut off.At this moment, when humidity is high, can be with the low-power operation of freezing, need not this is put and repeatedly connect and cut off, in order to avoid cooling sharp.Therefore, can realize comfortable desirable air-conditioning.
By-pass port in the above-described embodiments designs in this manner; when compressor is restarted after the of short duration shutdown of process; this by-passing valve is opened so that the blast pipe side of compressor and air intake duct side are communicated with through this by-pass port; like this; pressure in these two pipes in early days just can be consistent, thereby compressor is restarted very soon.
According to the present invention, can provide a kind of aircondition that reduces power and be easy to obtain high power performance during in the heating operation that need not special device when refrigeration, be easy to reach.
In addition, according to the present invention, can provide a kind of aircondition of loading with that when the refrigeration operation begins, improves.
Claims (5)
1. aircondition, comprise a compressor, one comprises the high pressure chest that is separated by the piston with by-pass port and the cross valve in pressure conversion chamber, indoor heat converter, pressure relief device and outdoor heat converter, they are linked together by some refrigerating pipes, the pressure conversion chamber of described cross valve is connected in the air intake duct side of compressor through a by-passing valve by a bypass pipe, it is characterized in that, be provided with the control refrigerant cycle, by-passing valve is closed condition and is the control device of opening during operation in refrigeration when the heating operation.
2. press the described aircondition of claim 1 for one kind, it is characterized in that being provided with control device,, and when normal operation subsequently, open by-passing valve so that when the refrigeration operation begins, close by-passing valve.
3. press the described aircondition of claim 1 for one kind, it is characterized in that described compressor is a kind of compressor with permanent rotary speed working.
4. press the described aircondition of claim 2 for one kind, it is characterized in that described compressor is a kind of compressor with permanent rotary speed working.
5. method of controlling aircondition, this aircondition comprises a compressor, one comprises the high pressure chest that is separated into by the piston with a by-pass prot and the cross valve in pressure conversion chamber, one indoor heat converter, a pressure relief device and an outdoor heat converter, they are linked together by some refrigerating pipes, comprise that also pressure conversion chamber one by-passing valve with cross valve is connected in the bypass pipe of compressor suction duct side and is used to control the open/close control device of by-passing valve; It is characterized in that:
Described by-passing valve cuts out when the heating operation, thereby stops from the refrigerant cycle of by-pass port, to obtain high heating power;
Described by-passing valve is opened when the refrigeration operation begins, so that the pressure conversion chamber of cross valve has low pressure;
Described piston is promoted by the high pressure chest of cross valve and the differential pressure between the pressure conversion chamber, thereby the spool member that is connected in described piston also driven, and makes cross valve be in the position of refrigeration operation;
Described by-passing valve is cutting out when the refrigeration operation is started after the mobile spool member, and therefore, described aircondition is with high refrigeration work consumption work;
Described by-passing valve is opened after reaching room temperature and remaining on a certain predetermined temperature, and therefore, the refrigeration operation is carried out with low power consumption by described aircondition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP240327/1992 | 1992-09-09 | ||
| JP4240327A JP2898826B2 (en) | 1992-09-09 | 1992-09-09 | Air conditioner |
| JP240327/92 | 1992-09-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1088673A CN1088673A (en) | 1994-06-29 |
| CN1057155C true CN1057155C (en) | 2000-10-04 |
Family
ID=17057831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93116414 Expired - Fee Related CN1057155C (en) | 1992-09-09 | 1993-09-04 | Air conditioning apparatus |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2898826B2 (en) |
| CN (1) | CN1057155C (en) |
| ES (1) | ES2079279B1 (en) |
| MY (1) | MY118276A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297790C (en) * | 2003-10-30 | 2007-01-31 | 博罗耀峰电子有限公司 | Four way valve and ice-making machine using the valve |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537420A (en) * | 2011-12-30 | 2012-07-04 | 美的集团有限公司 | Air conditioner and four-way valve thereof |
| CN111120689B (en) * | 2018-10-31 | 2021-12-03 | 广东美芝精密制造有限公司 | Air conditioner and control method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3894561A (en) * | 1974-03-14 | 1975-07-15 | Controls Co Of America | Four-way reversing valve with differential area operator |
| US4232529A (en) * | 1978-08-01 | 1980-11-11 | Babbitt Frederick J | Energy conservation refrigeration unit |
| US4406306A (en) * | 1982-03-19 | 1983-09-27 | Eaton Corporation | Heat pump switchover valve |
| US4573497A (en) * | 1984-08-23 | 1986-03-04 | Ranco Incorporated | Refrigerant reversing valve |
| US4976286A (en) * | 1989-12-14 | 1990-12-11 | Automatic Switch Company | Four-way slide valve |
-
1992
- 1992-09-09 JP JP4240327A patent/JP2898826B2/en not_active Expired - Fee Related
-
1993
- 1993-09-04 CN CN 93116414 patent/CN1057155C/en not_active Expired - Fee Related
- 1993-09-07 MY MYPI9301804 patent/MY118276A/en unknown
- 1993-09-08 ES ES9301926A patent/ES2079279B1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297790C (en) * | 2003-10-30 | 2007-01-31 | 博罗耀峰电子有限公司 | Four way valve and ice-making machine using the valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0688648A (en) | 1994-03-29 |
| ES2079279R (en) | 1997-07-16 |
| ES2079279B1 (en) | 1998-02-16 |
| JP2898826B2 (en) | 1999-06-02 |
| ES2079279A2 (en) | 1996-01-01 |
| MY118276A (en) | 2004-09-30 |
| CN1088673A (en) | 1994-06-29 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |