CN1143096C - Apparatus and method of controlling amount of refrigerant of multi-air conditioner - Google Patents
Apparatus and method of controlling amount of refrigerant of multi-air conditioner Download PDFInfo
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- CN1143096C CN1143096C CNB971095795A CN97109579A CN1143096C CN 1143096 C CN1143096 C CN 1143096C CN B971095795 A CNB971095795 A CN B971095795A CN 97109579 A CN97109579 A CN 97109579A CN 1143096 C CN1143096 C CN 1143096C
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- refrigerant amount
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Abstract
The present invention relates to a device for controlling refrigeration dose for a multi-stage air conditioner. In order to control the refrigeration dose supplied for an evaporator of an indoor machine according to the operative indoor machine, and the activity amount of indoor people, the device controls the opening degree of an electromagnetic valve which is arranged between a condenser and a compressor of an outdoor machine, so that part of refrigeration agents supplied for the evaporator flow into the compressor from the condenser through a bypass electromagnetic valve. Therefore, the present invention reduces the refrigeration dose supplied for the evaporator.
Description
Technical field
The present invention relates to a kind of multi-air conditioner with outdoor equipment that links to each other with a plurality of indoor equipmenies, more particularly, relate to a kind of apparatus and method of controlling refrigerant amount in the multi-air conditioner, can flow into the refrigerant amount of each indoor equipment in indoor active situation control according to indoor equipment that drives number and people, thereby directly control the cold of air-conditioner.
Background technology
As shown in Figure 1, traditional multi-air conditioner comprises a plurality of indoor equipment control modules 1, be used for controlling respectively and be installed in indoor a plurality of indoor equipmenies, a plurality of magnetic valves 8, be used to control the passage of the cold-producing medium that flows into indoor equipment, an outdoor equipment control module 2 links to each other with above-mentioned indoor control unit 1, thereby this outdoor control unit can flow into the passage of the refrigeration preparation of indoor equipment according to driving condition control magnetic valve 8 controls of indoor equipment.
In traditional multi-air conditioner, when indoor equipment control module 1 output connection signal is given outdoor equipment control module 2, by outdoor equipment control module 2 respective chambers equipment, promptly the magnetic valve 8 of Shu Chu connection signal is opened, so cold-producing medium only flows into corresponding indoor equipment.That is to say, as the first and second indoor equipment control module 1a, during 1b output connection signal, make and the above-mentioned first and second indoor equipment 1a by outdoor equipment control module 2, the first and second magnetic valve 8a that 1b links to each other, 8b opens, and the 3rd magnetic valve 8c is closed.Therefore, cold-producing medium only flows into first and second indoor equipmenies that need cooling.
But in above-mentioned multi-air conditioner, cold-producing medium will distribute by the indoor equipment number, therefore, and in only driving some indoor equipmenies during a few indoor equipment, because excessive to the cold-producing medium that these several indoor equipmenies are supplied with, the evaporimeter that makes and drive the corresponding indoor equipment of indoor equipment freezes.In addition, excess refrigerant stream also will cause power consumption too much.
Summary of the invention
The purpose of this invention is to provide a kind of apparatus and method of controlling refrigerant amount in the multi-air conditioner, can be according to indoor equipment that drives number and personnel's active situation control circulating mass of refrigerant, thus directly control indoor temperature.
In order to achieve the above object, refrigerant amount control device of the present invention comprises that comprises some indoor equipment groups that are used for vaporized refrigerant with the evaporimeter of cooling room air, and this indoor equipment group has some indoor equipmenies that are loaded in each chamber; One is contained in outdoor outdoor equipment, and this outdoor equipment comprises a compressor that links to each other with described evaporimeter and a condenser that links to each other with compressor, and described compressor and condenser compress respectively and condensating refrigerant; Some activity detector units that are used to detect people's activity, these detecting units are loaded on respectively in each chamber; Some timings will be by comparing the indoor equipment control module that calculates and export the activity controlling value by the activity and the setting of activity detector units output; Some first expansion gears that are used for the swell refrigeration agent, described first expansion gear links to each other with condenser with being connected in parallel to each other; Some first valves that are used to control refrigerant amount, described first valve is loaded between first expansion gear and the evaporimeter; With an outdoor equipment control module of controlling first valve according to the operation conditions and the described activity controlling value of each indoor equipment.
Described motion detection assembly comprises that the activity of some band infrared ray sensors examines then unit.Above-mentioned indoor equipment Control Component comprises device control cell in the several chambers.
The method that is applicable to the control refrigerant amount of multi-air conditioner of the present invention comprises the steps: the activity in the sensing chamber; By regularly activity detected value and setting being compared, calculate and output activity controlling value; The refrigerant amount of the evaporimeter of each indoor equipment is supplied with in control according to the activity controlling value; The step of wherein said control refrigerant amount comprises: supply with and the duty ratio when prepulse that drives the corresponding valve of indoor equipment according to the activity controlling value control of operating indoor equipment; With the described valve opening of control, thus the refrigerant amount in the evaporimeter of the corresponding indoor equipment of indoor equipment that control flows into and drives.
The method of control refrigerant amount of the present invention comprises the activity in the sensing chamber; By regularly detected activity and setting being compared calculating and output activity controlling value; The indoor equipment of the indoor equipment itself that output representative drives number; According to the stream of the indoor equipment conversion portion cold-producing medium of described activity controlling value and driving, at first the refrigerant amount of the evaporimeter of each indoor equipment is supplied with in control; And control the steps such as refrigerant amount of the evaporimeter of supplying with each indoor equipment again according to described activity controlling value, the step of wherein controlling refrigerant amount again comprises: supply with the duty ratio when prepulse with the corresponding valve of indoor equipment that drives according to the activity controlling value control of the indoor equipment that drives; With the aperture of the described valve of control, thus the refrigerant amount in the evaporimeter of the corresponding indoor equipment of indoor equipment that control flows into and drives.
Calculating and exporting in the step of active situation controlling value, regularly personnel activity's situation value and setting are compared, so that calculate and output active situation controlling value.In the above-mentioned step of at first controlling refrigerant amount, operate above-mentioned bypass solenoid valve according to indoor equipment that drives in some indoor equipmenies number and active situation controlling value, make cold-producing medium flow directly into the compressor of outdoor equipment, and do not flow through the evaporimeter of above-mentioned capillary, magnetic valve and indoor equipment through bypass solenoid valve 51 and bypass capillary from the discharging of the condenser of outdoor equipment.Therefore controllable flow is gone into the cold-producing medium of evaporimeter.Control again in the refrigerant amount step above-mentioned, control the aperture of above-mentioned magnetic valve, thereby controllable flow is gone into the refrigerant amount of evaporimeter.
Description of drawings
Fig. 1 is the block diagram of traditional multi-air conditioner;
Fig. 2 is the block diagram of multi-air conditioner of the present invention;
Fig. 3 shows the mobility status of cold-producing medium in the multi-air conditioner of the present invention;
Fig. 4 shows the method flow of refrigerant amount in the control multi-air conditioner of the present invention.
The specific embodiment
Fig. 2 and 3 shows the device of controlling control refrigerant amount in the multi-air conditioner according to the present invention.As shown in these figures, this device comprises the motion detection assembly 10 of each indoor occupant active situation of plurality of detection; Some and above-mentioned motion detection assembly 10 links to each other, is used to control each indoor equipment and regularly activity and setting compared to calculate and to export the indoor equipment Control Component 20 of activity controlling value; Some capillary 43a that link to each other with the comb of the condenser 41 of outdoor equipment with being connected in parallel to each other, 43b, 43c; Some and above-mentioned capillary 43a, 43b, 43c link to each other and are used to control the magnetic valve 48a of refrigerant amount, 48b, 48c; The link to each other evaporimeter 45a of the indoor equipment be used to cool off room air of some and above-mentioned magnetic valve 48a, 48b, 48c, 45b, 45c; One and above-mentioned evaporimeter 45a, 45b, 45c link to each other and are used for compressing flash-pot 45a, 45b, the compressor 47 of the outdoor equipment of the cold-producing medium of 45c; The bypass solenoid valve 51 and the bypass capillary that are contained between the comb of going into pipe and condenser 41 of compressor 47, are one another in series and connect; Be used for according to the driving condition of each indoor equipment with from the state that open-closes and the magnetic valve 48a of the activity controlling value control bypass solenoid valve 51 of indoor equipment Control Component 20 inputs, 48b, the outdoor equipment control module 30 of the aperture of 48c.
Though the invention provides the refrigerant amount control device with the multi-air conditioner of a plurality of indoor equipmenies, in above-mentioned two width of cloth accompanying drawings, for simplicity, described multi-air conditioner has an outdoor equipment and three indoor equipmenies.
As shown in Figure 2, motion detection assembly 10 comprises first, second and the 3rd activity detector units 10a of band infrared sensor, 10b, 10c.And indoor equipment Control Component 20 comprises first, second and the 3rd indoor equipment control module 20a, 20b, 20c.
Fig. 4 shows the method program of refrigerant amount in the above-mentioned multi-air conditioner of control.In the figure, label S10, S20 and S30 represent respectively and calculate and output activity controlling value step, at first control refrigerant amount step and control the refrigerant amount step again.In the figure, for simplicity, calculate and export activity controlling value step S10 and be illustrated among Fig. 4 a, and at first and again control refrigerated medium dosage step S20, S30 is illustrated among Fig. 4 b.As shown in FIG., the method for control refrigerant amount of the present invention comprises to be calculated and output activity controlling value step S10, at first controls refrigerant amount step S20 and controls refrigerant amount step S30 again.In calculating and export activity controlling value step S10, personnel activity's amount in preset time is compared with setting, to calculate and output activity controlling value.In the step S20 that at first controls refrigerant amount, according to indoor equipment that drives in some indoor equipmenies number and activity controlling value T operation bypass solenoid valve 51, make the cold-producing medium that flows out from the condenser 41 of outdoor equipment through bypass solenoid valve 51 and bypass capillary 50 flow directly into outdoor equipment compressor 47 and without capillary 43a, 43b, 43c, by-passing valve 48a, 48b, the evaporimeter 45a of 48c and indoor equipment, 45b, 45c.Therefore, controllable flow is gone into evaporimeter 45a, 45b, the cold-producing medium of 45c.In the step S30 that controls refrigerant amount again, control magnetic valve 48a, 48b, the aperture of 48c, thus controllable flow is gone into evaporimeter 45a, 45b, the refrigerant amount of 45c.
Referring to Fig. 2-4, in calculating and export activity controlling value step S10, in order to detect the people's activities situation, at first, the corresponding activity detector units of the just operating indoor equipment control module of certain of indoor equipment Control Component 20 operant activity detection components 10.At this moment, if detected active situation, the pulse of being sent by motion detection assembly 10 is transformed into low level (H-L) by high level.Indoor equipment control module accumulative total is transformed into low level umber of pulse from the input of motion detection assembly and by high level in preset time, and the activity and the setting of above-mentioned accumulative total compared, with output activity controlling value.For example, if the activity (A) of accumulative total is A≤L, then Shu Chu activity controlling value T is " low ".If the activity (A) of accumulative total is L＜A≤M or M＜A, then Shu Chu activity controlling value T be " in " and " height ", L and M distinguish the minimum of a value and the median of deputy activity amount herein.
As mentioned above, use and examine then assembly 10 detected activity meters by activity and calculate after the controlling value T, indoor equipment Control Component 20 is to outdoor equipment control module 30 output activity controlling value T.For example, if have only the operation of the first and the 3rd indoor equipment, the first and the 3rd indoor equipment control module 20a of indoor equipment Control Component 20,20c operates the first and the 3rd activity detecting unit 10a, 10c is so that be accumulated at the first and the 3rd indoor detected activity.Activity by means of accumulative total goes out can calculate the first and the 3rd activity controlling value T1 and T3, and export above-mentioned controlling value to outdoor equipment control module 30.At this moment, on behalf of the indoor equipment of itself, operating indoor equipment control module also will number export to outdoor equipment control module 30.
In at first controlling refrigerant amount step S20, outdoor equipment control module 30 is according to the activity controlling value T operation bypass solenoid valve 51 of the indoor equipment input of device number of importing from the indoor equipment control module that drives and driving.That is to say that when an indoor equipment is moving or two activity controlling values when moving for the indoor equipment of " low ", bypass solenoid valve 51 is opened.So the part of refrigerant of the cold-producing medium of discharging from the condenser 41 of outdoor equipment flows directly into the compressor 47 of outdoor equipment through magnetic valve 51 and bypass capillary 50, and do not flow through corresponding to each indoor equipment control module 20a, 20b, 20c is corresponding to magnetic valve 48a, 48b, 48c and corresponding to evaporimeter 45a, 45b, the capillary 43a of 45c, 43b, 43c.Therefore, flow into the first and the 3rd evaporimeter 45a, the cold-producing medium of 45c reduces, and does not freeze on the evaporimeter thus.
As the value T1 of the first and the 3rd indoor equipment, when T3 was " low ", bypass solenoid valve 51 was opened.By means of opening bypass solenoid valve 51, the part of the cold-producing medium that flows out from condenser 41 flows directly into compressor 47 through bypass solenoid valve 51 and bypass capillary 50, and does not flow through first and three capillary 43a, 43c, magnetic valve 48a, 48c and the first and the 3rd evaporimeter 45a, 45c.Therefore, supply with the first and the 3rd evaporimeter 45a, the refrigerant amount of 45c reduces, thereby can avoid evaporating device 45a, and 45c is last to freeze.
In the step S30 that controls refrigerant amount again, outdoor equipment control module 30 is supplied with the duty ratio when prepulse of corresponding solenoid valve according to the activity controlling value T control of the indoor equipment that drives.Consequently the aperture of magnetic valve is controlled, thereby controlled the cold-producing medium of inflow evaporator.In other words, if activity controlling value T is " height ", above-mentioned magnetic valve standard-sized sheet.For activity controlling value T be " in " and the situation of " low ", it is medium and little that the aperture of magnetic valve is respectively.Therefore, it is big that activity controlling value T becomes, and the aperture of magnetic valve also increases, and the cold-producing medium of supplying with evaporimeter increases.
For example, if the first indoor activity controlling value be " in ", in order to control the refrigerant amount of evaporimeter 45a of supply first indoor equipment, the aperture of magnetic valve 45a be " in ".As mentioned above, owing to supply with the activity that the cold-producing medium of evaporimeter depends on each chamber, reduced the power attenuation that causes by excessive cold-producing medium stream.
As mentioned above, in control multi-air conditioner of the present invention in the apparatus and method of refrigerant amount, can be according to the refrigerant amount of indoor equipment that drives number and people's activities amount control circulation.Therefore, the common air-conditioning device of apparatus of the present invention is housed but not the reversing air-conditioner can directly be controlled the cooling situation of room air.In addition, when having only seldom several indoor equipment operations, can reduce the cold-producing medium of supplying with evaporimeter, thereby make evaporimeter be unlikely to icing, and can reduce the power attenuation that causes because of excess refrigerant.
Though described preferred form of the present invention above, should understand that under the prerequisite that does not exceed protection scope of the present invention, this area ordinary skill can also be made various remodeling.
In view of the above, protection scope of the present invention is limited by described claim fully.
Claims (10)
1. device that is applicable to the control refrigerant amount of multi-air conditioner, it comprises:
One comprises some indoor equipment groups that are used for vaporized refrigerant with the evaporimeter of cooling room air, and this indoor equipment group has some indoor equipmenies that are loaded in each chamber;
One is contained in outdoor outdoor equipment, and this outdoor equipment comprises a compressor that links to each other with described evaporimeter and a condenser that links to each other with compressor, and described compressor and condenser compress respectively and condensating refrigerant;
Some activity detector units that are used to detect people's activity, these detecting units are loaded on respectively in each chamber;
Some timings will be by comparing the indoor equipment control module that calculates and export the activity controlling value by the activity and the setting of activity detector units output;
Some first expansion gears that are used for the swell refrigeration agent, described first expansion gear links to each other with condenser with being connected in parallel to each other;
Some first valves that are used to control refrigerant amount, described first valve is loaded between first expansion gear and the evaporimeter; With
An outdoor equipment control module of controlling first valve according to the operation conditions and the described activity controlling value of each indoor equipment.
2. the device of control refrigerant amount as claimed in claim 1 also comprises:
Second valve that is used to control refrigerant passage, this second valve are loaded on the comb of condenser and going between the pipe of compressor;
Second expansion gear that is used for the swell refrigeration agent, this second expansion gear is loaded on going between the pipe of second valve and compressor.
3. the device of control refrigerant amount as claimed in claim 1, wherein said first valve comprises magnetic valve.
4. the device of control refrigerant amount as claimed in claim 3, the aperture of wherein said magnetic valve is decided by the control of outdoor equipment control module.
5. the device of control refrigerant amount as claimed in claim 1, wherein activity detector units comprises infrared sensor.
6. a method that is applicable to the control refrigerant amount of multi-air conditioner comprises the steps:
Activity in the sensing chamber;
By regularly activity detected value and setting being compared, calculate and output activity controlling value;
The refrigerant amount of the evaporimeter of each indoor equipment is supplied with in control according to the activity controlling value;
The step of wherein said control refrigerant amount comprises:
Supply with and the duty ratio that drives the corresponding valve of indoor equipment according to the activity controlling value control of operating indoor equipment when prepulse; With
Control described valve opening, thus the refrigerant amount in the evaporimeter of the corresponding indoor equipment of indoor equipment that control flows into and drives.
7. the method for control refrigerant amount as claimed in claim 6, the step of activity comprises in the described sensing chamber:
The activity that accumulative total detects; And
The step of described calculating and output activity controlling value is exported the activity controlling value by adding up activity with setting compares.
8. a method that is applicable to the control refrigerant amount of multi-air conditioner comprises the steps:
Activity in the sensing chamber;
By regularly detected activity and setting being compared calculating and output activity controlling value;
The indoor equipment of the indoor equipment itself that output representative drives number;
According to the stream of the indoor equipment conversion portion cold-producing medium of described activity controlling value and driving, at first the refrigerant amount of the evaporimeter of each indoor equipment is supplied with in control; And
Control the refrigerant amount of the evaporimeter of supplying with each indoor equipment again according to described activity controlling value;
The step of wherein controlling refrigerant amount again comprises:
According to the activity controlling value control supply of the indoor equipment that drives and the duty ratio when prepulse of the corresponding valve of indoor equipment that drives; With
Control the aperture of described valve, thus the refrigerant amount in the evaporimeter of the corresponding indoor equipment of indoor equipment that control flows into and drives.
9. the method for control refrigerant amount as claimed in claim 8, the step of activity may further comprise the steps in the described sensing chamber:
The detected activity of accumulative total;
The step of described calculating and output activity controlling value compares output activity controlling value by activity and the setting with described accumulative total.
10. the method for control refrigerant amount as claimed in claim 8, the step of wherein at first controlling refrigerant amount comprises:
Open a by-passing valve according to device number in the drive chamber and activity controlling value, this by-passing valve is loaded on the comb of condenser and going between the pipe of compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971095795A CN1143096C (en) | 1997-03-29 | 1997-03-29 | Apparatus and method of controlling amount of refrigerant of multi-air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB971095795A CN1143096C (en) | 1997-03-29 | 1997-03-29 | Apparatus and method of controlling amount of refrigerant of multi-air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1195091A CN1195091A (en) | 1998-10-07 |
| CN1143096C true CN1143096C (en) | 2004-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB971095795A Expired - Fee Related CN1143096C (en) | 1997-03-29 | 1997-03-29 | Apparatus and method of controlling amount of refrigerant of multi-air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN1143096C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326416B (en) * | 2005-12-16 | 2010-09-15 | 大金工业株式会社 | Air conditioner |
| CN101331371B (en) * | 2005-12-16 | 2010-11-03 | 大金工业株式会社 | Air conditioner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6735964B2 (en) * | 2002-06-05 | 2004-05-18 | Carrier Corporation | Air conditioning system with refrigerant charge management |
| KR20050122625A (en) * | 2004-06-25 | 2005-12-29 | 삼성전자주식회사 | A multi air conditioner system and a driving method of indoor unit |
| CN106288544A (en) * | 2016-08-19 | 2017-01-04 | 芜湖美智空调设备有限公司 | Air-conditioner and control method thereof |
| CN106196507A (en) * | 2016-08-19 | 2016-12-07 | 芜湖美智空调设备有限公司 | Air-conditioner and the control method of air-conditioner |
-
1997
- 1997-03-29 CN CNB971095795A patent/CN1143096C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101326416B (en) * | 2005-12-16 | 2010-09-15 | 大金工业株式会社 | Air conditioner |
| CN101331371B (en) * | 2005-12-16 | 2010-11-03 | 大金工业株式会社 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1195091A (en) | 1998-10-07 |
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