CN103900300A - Air conditioner and control method thereof - Google Patents
Air conditioner and control method thereof Download PDFInfo
- Publication number
- CN103900300A CN103900300A CN201210570242.5A CN201210570242A CN103900300A CN 103900300 A CN103900300 A CN 103900300A CN 201210570242 A CN201210570242 A CN 201210570242A CN 103900300 A CN103900300 A CN 103900300A
- Authority
- CN
- China
- Prior art keywords
- valve
- coolant quantity
- air
- conditioner
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000002826 coolant Substances 0.000 claims description 107
- 239000012530 fluid Substances 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 14
- 239000003507 refrigerant Substances 0.000 abstract description 39
- 238000004064 recycling Methods 0.000 abstract 1
- 239000000047 product Substances 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a compressor, a condenser, a throttling component, an evaporator and a refrigerant volume automatic adjusting assembly, wherein the refrigerant volume automatic adjusting assembly comprises a liquid storage pot, a first valve, a second valve, a third valve and a controller. The third valve is connected between an inlet of the compressor and an outlet of the evaporator in series, a first end of the first valve is connected between the outlet of the evaporator and the third valve, a second end of the first valve is connected with a liquid inlet of the liquid storage pot, a first end of the second valve is connected between the third valve and an inlet of the compressor, and a second end of the second valve is connected with a liquid outlet of the liquid storage pot; the controller is connected with the first valve, the second valve and the third valve respectively to control operations of the first valve, the second valve and the third valve. According to the air conditioner, recycling heat exchange refrigerant volume in the air conditioner can be automatically adjusted, and stability and reliability of the air conditioner is improved.
Description
Technical field
The present invention relates to field of domestic appliances manufacture technology, particularly a kind of air-conditioner and the control method for this air-conditioner.
Background technology
At present, because air-conditioner has good heat exchange property, be widely applied, for people provide comfortable work and living environment.Air-conditioner carries out exchange heat by refrigerant, and in the time that coolant quantity normally meets design flow, serviceability and reliability all meet the demands.But in the time that coolant quantity is on the high side or on the low side, cause refrigeration or heating capacity deficiency, the reliability of air-conditioner is reduced.The air-conditioner of conventional art is in the time producing or install, and because production technology, the operation etc. of each air-conditioner there are differences, portioned product can exist refrigerant situation on the high side or on the low side, has so just affected the result of use of product.Although some product when mounted or the later stage can coolant adding, can there is difference in performance in the refrigerant of different batches, also can cause properties of product undesirable.
Summary of the invention
The present invention one of is intended to solve the problems of the technologies described above at least to a certain extent or at least provides a kind of useful business to select.For this reason, one object of the present invention is to propose a kind of air-conditioner that can automatically regulate coolant quantity.
Another object of the present invention is to propose a kind of control method for this air-conditioner.
According to the air-conditioner of the embodiment of the present invention, comprise the automatic adjusting part of compressor, condenser, throttle part, evaporimeter and coolant quantity, the automatic adjusting part of described coolant quantity comprises: fluid reservoir, the first to the 3rd valve and controller.Particularly, described the 3rd valve is connected between the entrance of described compressor and the outlet of described evaporimeter, the first end of described the first valve is connected between the outlet and described the 3rd valve of described evaporimeter, the second end of described the first valve is connected with the inlet of described fluid reservoir, and the first end of described second valve is connected between described the 3rd valve and the entrance of described compressor and the second end of described second valve is connected with the liquid outlet of described fluid reservoir; Described controller is connected with the described first to the 3rd valve respectively, for controlling the described first operation to the 3rd valve.
According to the air-conditioner of the embodiment of the present invention, be provided with the automatic adjusting part of coolant quantity.Thus, the automatic adjusting part of coolant quantity can regulate the coolant quantity that carries out cycle heat exchange in air-conditioner automatically, make the refrigerant that carries out heat exchange circulation in air-conditioner maintain predetermined coolant quantity, the heat exchange property of the air-conditioner that the coolant quantity difference of injecting in advance while avoiding because of assembling causes is unstable, has improved stability and the reliability of air-conditioner.Simple in structure, refrigerant regulating effect is good, has improved the performance of air-conditioner.
In addition, air-conditioner according to the above embodiment of the present invention, can also have following additional technical characterictic:
In addition, in some embodiments of the invention, the described first to the 3rd valve is respectively magnetic valve.Thus, conveniently control the first to the 3rd valve, make the adjustment fast and stable of the refrigerant of air-conditioner.
In the air-conditioner of one embodiment of the present of invention, also comprise cross valve, described cross valve has first to fourth valve port, described the first valve port is connected with the outlet of described compressor, described the second valve port is connected with the entrance of described condenser, described the 3rd valve port is connected with the entrance of described compressor, described the 4th valve port is connected with the outlet of described evaporimeter, described the 3rd valve is connected between described the 3rd valve port and the entrance of described compressor, and the first end of described the first valve is connected between described the 3rd valve port and described the 3rd valve.Thus, the function that makes air-conditioner there is refrigeration and heat, the serviceability of the air-conditioner of raising.
In addition,, according to some embodiments of the present invention, described cross valve is magnetic valve.Thus, cross valve is easily controlled, quick adjustment air-conditioner freezes or heats.
In addition, according to an example of the present invention, also comprise the sensor for detection of pressure at expulsion or the delivery temperature of described compressor, described controller is connected with described sensor with according to the first to the 3rd valve described in the detection signal control of described sensor.Thus, simplify the testing process of coolant quantity, made air conditioner structure simple, convenient detection and adjusting.
In addition,, according to a concrete example of the present invention, described sensor is located at the exit of described compressor.
The control method of the air-conditioner of previous embodiment according to the present invention, comprising: detect the coolant quantity of circulation in described air-conditioner whether within the scope of predetermined coolant quantity; If described coolant quantity is greater than the maximum of described predetermined coolant quantity scope, close the 3rd valve, open the first and second valves; If described coolant quantity is less than the minimum of a value of predetermined coolant quantity scope, close the first valve, open second and the 3rd valve; If described coolant quantity, within the scope of described predetermined coolant quantity, is closed the first and second valves, open the 3rd valve.
The control method of the air-conditioner of previous embodiment according to the present invention, can be adjusted in the coolant quantity circulating in air-conditioner automatically, makes air-conditioner have good heat exchange property.Thus, the automatic adjusting part of coolant quantity can regulate the coolant quantity that carries out cycle heat exchange in air-conditioner automatically, make the refrigerant that carries out heat exchange circulation in air-conditioner maintain predetermined coolant quantity, avoid the difference of the heat exchange property causing because of the coolant quantity difference of injection in advance, improved stability and the reliability of air-conditioner.Simple in structure, refrigerant regulating effect is good, has improved the performance of air-conditioner.
In addition, according to the control method of the air-conditioner of the embodiment of the present invention, detect the pressure at expulsion of described compressor, whether the pressure at expulsion that detects of judgement is in preset range, if described pressure at expulsion is greater than the maximum of described preset range, described coolant quantity is greater than the maximum of described predetermined coolant quantity scope, if described pressure at expulsion is less than the minimum of a value of described preset range, described coolant quantity is less than the minimum of a value of described predetermined coolant quantity scope, if described pressure at expulsion is in described preset range, described coolant quantity is within the scope of described predetermined coolant quantity.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is the schematic diagram of the air-conditioner of one embodiment of the present of invention;
Fig. 2 is the schematic flow sheet of the control method of the air-conditioner of one embodiment of the present of invention.
Wherein, compressor 10, condenser 20, evaporimeter 30, the first valve 41, second valve 42, the 3rd valve 43, fluid reservoir 44, controller 45, cross valve 50, the first valve port d, the second valve port c, the 3rd valve port s, the 4th valve port e.
Detailed description of the invention
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of instructions such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but by the other feature contact between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
At present, because air-conditioner has good heat exchange property, be widely applied, for people provide comfortable work and living environment.Air device carries out exchange heat by refrigerant, and in the time that coolant quantity normally meets design flow, serviceability and reliability all meet the demands.But in the time that coolant quantity is on the high side or on the low side, cause refrigeration or heating capacity deficiency, the reliability of air-conditioner is reduced.The air-conditioner of conventional art is in the time producing or install, and because production technology, the operation etc. of each air-conditioner there are differences, portioned product can exist refrigerant situation on the high side or on the low side, has so just affected the result of use of product.Although some product when mounted or the later stage can coolant adding, can there is difference in performance in the refrigerant of different batches, also can cause properties of product undesirable.The object of the invention is to propose a kind of air-conditioner with the automatic adjusting part of coolant quantity, for improving the stability of air-conditioner work.
Describe with reference to the accompanying drawings air-conditioner of the present invention in detail.
Fig. 1 is the schematic diagram of the air-conditioner of the embodiment of the present invention, and with reference to Fig. 1, this air-conditioner comprises compressor 10, condenser 20, throttle part (not shown), evaporimeter 30 and the automatic adjusting part of coolant quantity.The automatic adjusting part of this coolant quantity comprises: the first valve 41, second valve 42, the 3rd valve 43, fluid reservoir 44 and controller 45.
Particularly, the 3rd valve 43 is connected between the outlet (i.e. the connector of evaporimeter 30 left ends as shown in Figure 1) of entrance (i.e. the connector of compressor 10 right-hand members as shown in Figure 1) and the evaporimeter 30 of compressor 10, the gas returning port that the entrance of this compressor 10 is compressor.The first end of the first valve 41 (i.e. the left end of the first valve 41 as shown in Figure 1) is connected between the outlet and the 3rd valve 43 of evaporimeter 30.The second end of the first valve 41 (i.e. the right-hand member of the first valve 41 as shown in Figure 1) is connected with the inlet of fluid reservoir 44.The first end of second valve 42 (i.e. the lower end of second valve 42 as shown in Figure 1) is connected between the 3rd valve 43 and the entrance of compressor 10, and the second end of second valve 42 (i.e. the upper end of second valve 42 as shown in Figure 1) is connected with the liquid outlet of fluid reservoir 44.Wherein, the refrigerant in air-conditioner is got back to the entrance of compressor 10 through the 3rd valve 43, or gets back to the entrance of compressor 10 through the first valve 41, fluid reservoir 44 and the 3rd valve 43.
Opening or closing by controller 45 of the first valve 41, second valve 42 and the 3rd valve 43 controlled.Particularly, controller 45 is connected with the first valve 41 for controlling the operation of the first valve 41, and controller 45 is connected with second valve 42 for controlling the operation of second valve 42, and controller 45 is connected for controlling the operation of the 3rd valve 43 with the 3rd valve 43.
According to the air-conditioner of the embodiment of the present invention, be provided with the automatic adjusting part of coolant quantity.Thus, the automatic adjusting part of coolant quantity can regulate the coolant quantity that participates in heat exchange circulation in air-conditioner automatically, make the refrigerant that carries out heat exchange circulation in air-conditioner maintain predetermined coolant quantity, avoid the difference of the heat exchange property causing because of the coolant quantity difference that when assembling injects in advance, improved stability and the reliability of air-conditioner.Simple in structure, refrigerant regulating effect is good, has improved the performance of air-conditioner.
In addition, the coolant quantity that coolant quantity in air-conditioner of the present invention circulates while normally operation higher than air-conditioning in air-conditioner, thus, occur that error causes coolant quantity lower than predetermined coolant quantity in the time of assembling time, air-conditioner still can normally be worked, and unnecessary refrigerant can be stored in fluid reservoir, to the refrigerant that participates in cycle heat exchange in air-conditioner is regulated.
The detailed process of the coolant quantity of the automatic adjusting part adjusting of refrigerant air-conditioner internal circulation heat-exchanging is as follows: if the coolant quantity that carries out heat exchange in air-conditioner is higher than predetermined coolant quantity, close the 3rd valve 43 and open the first valve 41 and second valve 42, make at the refrigerant of air-conditioner internal circulation heat-exchanging under pressure, to be deposited in fluid reservoir 44; If carry out the coolant quantity of cycle heat exchange in air-conditioner lower than predetermined coolant quantity, close the first valve 41 and open second valve 42 and the 3rd valve 43, make refrigerant have the 3rd valve 43 to enter compressor 10 entrances, too low its pressure that makes of coolant quantity is less, refrigerant in fluid reservoir 44 is entered in air-conditioner and circulate; If the coolant quantity of air-conditioner internal circulation heat-exchanging equals predetermined coolant quantity, open the 3rd valve 43 and close the first valve 41 and second valve 42, make fluid reservoir 44 not participate in coolant quantity and regulate.
In addition, the first valve 41, second valve 42 and the 3rd valve 43 are respectively magnetic valve.Each in the first valve 41, second valve 42 and the 3rd valve 43 all has control end, and control end is used for controlling corresponding first end and the second end is communicated with or disconnects, and controller 45 is connected with the control end of magnetic valve.Thus, conveniently each valve is controlled.Make the refrigerant adjusting in air-conditioner more intelligent, and make the first valve 41, second valve 42 and stable the opening and turn-offing of the 3rd valve 43, improved the stability of air-conditioner operation.
Certainly, the first valve 41, second valve 42 and the 3rd valve 43 can also be the valves such as hydraulic valve or air pressure valve.
In addition, for ease of the quick adjustment of the automatic adjusting part of refrigerant, the adjusting that makes refrigerant more can only with easy adjusting, the coolant quantity that needs real-time detection to circulate in air-conditioner, and with predetermined coolant quantity comparison so that be adjusted in the coolant quantity circulating in air-conditioner according to comparative result.In the embodiments of the invention shown in Fig. 1, locate to arrange sensor 46 in the outlet of compressor 10 (i.e. the connector of the upper end of compressor 10 as shown in Figure 1).To detect in time the coolant quantity of being discharged by compressor 10, in time the refrigerant circulating in air-conditioner regulated.Particularly, this sensor 46, for detection of pressure at expulsion or the delivery temperature of compressor 10, detects the coolant quantity at air-conditioner cycle heat exchange by pressure at expulsion or the delivery temperature of measuring compressor 10.Controller 45 is connected with sensor 46, and controller 45 is according to detection signal control the first valve 41, second valve 42 and the 3rd valve 43 of sensor 46.Thus, pressure at expulsion and delivery temperature according to compressor 10 regulate coolant quantity, make the coolant quantity of air-conditioning easy to detect, are convenient to the operation of the automatic adjusting part of coolant quantity, can understand fast the situation of coolant quantity in air-conditioner, and carry out quick adjustment according to feedback information.
In addition, as shown in Figure 1, this air-conditioner also comprises cross valve 50, and cross valve 50 has the first valve port d, the second valve port c, the 3rd valve port s and the 4th valve port e.Wherein, this cross valve 50 has two kinds of mode of operations, for regulating air-conditioner refrigeration or heating.Particularly, under the first mode of operation, the first valve port d is communicated with the second valve port c and the 3rd valve port s and the 4th valve port e connection; Under the second mode of operation, the first valve port d is communicated with the 4th valve port e and the second valve port c is communicated with the 3rd valve port s.Thus, improved the function of air-conditioner, meet user different demands, improved the serviceability of air-conditioner.
Particularly, as shown in Figure 1, the first valve port d is connected with the outlet of compressor 10, and the second valve port c is connected with the entrance (as the connector on 20 left sides of condenser in Fig. 1) of condenser 20, the 3rd valve port s is connected with the entrance of compressor 10, and the 4th valve port e is connected with the outlet of evaporimeter 30.The 3rd valve 43 is connected between the 3rd valve port s and the entrance of compressor 10, and the first end of the first valve 41 is connected between the 3rd valve port s and the 3rd valve 43.Under the first mode of operation of cross valve 50, the refrigerant of the outlet output of compressor 10 is got back to the entrance of compressor through condenser 20, evaporimeter 30; Under the second mode of operation of cross valve 50, the refrigerant of the outlet output of compressor 10 is got back to compressor through evaporimeter 30, condenser 20.
Thus, make air-conditioner under the mode of operation of freezing or heat, all can automatically adjust to coolant quantity, improved practicality and the scope of application of the air-conditioner of invention.
Certainly, air-conditioner of the present invention also can be only for refrigeration, and this is understandable for those of ordinary skill in the art.
In addition, cross valve 50 is magnetic valve.Cross valve 50 is switched fast between the first mode of operation and the second mode of operation, improved the operating efficiency of air-conditioner, easy to use.
Describe with reference to the accompanying drawings the control method of the air-conditioner of the embodiment of the present invention in detail.
Fig. 2 shows the control method of air-conditioner of the present invention, and this air-conditioner is the air-conditioner described in previous embodiment according to the present invention.Described control method comprises:
Detect the coolant quantity of circulation in air-conditioner, and with predetermined coolant quantity scope comparison, judge that coolant quantity is whether within the scope of predetermined coolant quantity.
If the coolant quantity detecting is greater than the maximum of predetermined coolant quantity scope, close the 3rd valve 43, open the first valve 41 and second valve 42.Make refrigerant through fluid reservoir 44, and make refrigerant under pressure in the interior deposition of fluid reservoir 44.
If the coolant quantity detecting is less than the minimum of a value of predetermined coolant quantity scope, close the first valve 41, open second valve 42 and the 3rd valve 43.Make refrigerant be back to compressor 10 through the 3rd valve 43, in addition, less through the pressure of the refrigerant of the 3rd valve 43, the refrigerant in fluid reservoir 44 supplements the refrigerant that is back to compressor through second valve 42.
If the coolant quantity detecting, within the scope of predetermined coolant quantity, is closed the first valve 41 and second valve 42, open the 3rd valve 43.Make the refrigerant of circulation without fluid reservoir 44, avoid fluid reservoir 44 to participate in the circulation of refrigerant in air-conditioner and change the coolant quantity circulating in air-conditioner.
The control method of the air-conditioner of previous embodiment according to the present invention, can be adjusted in the coolant quantity circulating in air-conditioner automatically, makes air-conditioner have good heat exchange property.Thus, the automatic adjusting part of coolant quantity can regulate the coolant quantity that carries out cycle heat exchange in air-conditioner automatically, make the refrigerant that carries out heat exchange circulation in air-conditioner maintain predetermined coolant quantity, avoid the difference of the heat exchange property causing because of the coolant quantity difference of injection in advance, improved stability and the reliability of air-conditioner.Simple in structure, refrigerant regulating effect is good, has improved the performance of air-conditioner.
In addition,, according to the control method of the air-conditioner of the embodiment of the present invention, detect the pressure at expulsion of compressor 10.And judge by detection architecture whether the coolant quantity circulating needs to regulate in air-conditioner.Specific as follows: whether the pressure at expulsion that detects of judgement is in preset range, if the pressure at expulsion detecting is greater than the maximum of the preset range of detection, the coolant quantity detecting is greater than the maximum of the predetermined coolant quantity scope of detection; If the pressure at expulsion detecting is less than the minimum of a value of the preset range of detection, the coolant quantity detecting is less than the minimum of a value of the predetermined coolant quantity scope of detection; If in the preset range of the pressure at expulsion detecting in detecting, within the scope of the predetermined coolant quantity of the coolant quantity detecting in detecting.Thus, simplify detection and the judgement of coolant quantity, the detection architecture of the coolant quantity of air-conditioner accurately and is conveniently regulated, improved the practicality of air-conditioner.
Certainly, air-conditioner of the present invention can also be judged the coolant quantity that participates in circulation in air-conditioner by the delivery temperature that detects compressor 10, and this is understandable for those of ordinary skill in the art.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, those of ordinary skill in the art can change above-described embodiment within the scope of the invention in the situation that not departing from principle of the present invention and aim, amendment, replacement and modification.
Claims (8)
1. an air-conditioner, comprises that the automatic adjusting part of compressor, condenser, throttle part, evaporimeter and coolant quantity is characterized in that, the automatic adjusting part of described coolant quantity comprises:
Fluid reservoir;
The first to the 3rd valve, described the 3rd valve is connected between the entrance of described compressor and the outlet of described evaporimeter, the first end of described the first valve is connected between the outlet and described the 3rd valve of described evaporimeter, the second end of described the first valve is connected with the inlet of described fluid reservoir, and the first end of described second valve is connected between described the 3rd valve and the entrance of described compressor and the second end of described second valve is connected with the liquid outlet of described fluid reservoir; With
Controller, described controller is connected with the described first to the 3rd valve respectively, for controlling the described first operation to the 3rd valve.
2. air-conditioner according to claim 1, is characterized in that, the described first to the 3rd valve is respectively magnetic valve.
3. air-conditioner according to claim 1, it is characterized in that, also comprise cross valve, described cross valve has first to fourth valve port, described the first valve port is connected with the outlet of described compressor, described the second valve port is connected with the entrance of described condenser, described the 3rd valve port is connected with the entrance of described compressor, described the 4th valve port is connected with the outlet of described evaporimeter, described the 3rd valve is connected between described the 3rd valve port and the entrance of described compressor, and the first end of described the first valve is connected between described the 3rd valve port and described the 3rd valve.
4. air-conditioner according to claim 3, is characterized in that, described cross valve is magnetic valve.
5. according to the air-conditioner described in claim 1-4, it is characterized in that, also comprise the sensor for detection of pressure at expulsion or the delivery temperature of described compressor, described controller is connected with described sensor with according to the first to the 3rd valve described in the detection signal control of described sensor.
6. air-conditioner according to claim 5, is characterized in that, described sensor is located at the exit of described compressor.
7. according to a control method for the air-conditioner described in any one in claim 1-6, comprising:
Detect the coolant quantity of circulation in described air-conditioner whether within the scope of predetermined coolant quantity;
If described coolant quantity is greater than the maximum of described predetermined coolant quantity scope, close the 3rd valve, open the first and second valves; If described coolant quantity is less than the minimum of a value of predetermined coolant quantity scope, close the first valve, open second and the 3rd valve; If described coolant quantity, within the scope of described predetermined coolant quantity, is closed the first and second valves, open the 3rd valve.
8. the control method of air-conditioner according to claim 7, is characterized in that, detects the pressure at expulsion of described compressor,
Whether the pressure at expulsion that detects of judgement is in preset range, if described pressure at expulsion is greater than the maximum of described preset range, described coolant quantity is greater than the maximum of described predetermined coolant quantity scope, if described pressure at expulsion is less than the minimum of a value of described preset range, described coolant quantity is less than the minimum of a value of described predetermined coolant quantity scope, if described pressure at expulsion is in described preset range, described coolant quantity is within the scope of described predetermined coolant quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570242.5A CN103900300B (en) | 2012-12-24 | 2012-12-24 | Air-conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210570242.5A CN103900300B (en) | 2012-12-24 | 2012-12-24 | Air-conditioner and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103900300A true CN103900300A (en) | 2014-07-02 |
| CN103900300B CN103900300B (en) | 2016-03-30 |
Family
ID=50991782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210570242.5A Active CN103900300B (en) | 2012-12-24 | 2012-12-24 | Air-conditioner and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103900300B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121725A (en) * | 2014-07-09 | 2014-10-29 | 广东美的暖通设备有限公司 | Heat pump system and control method thereof |
| CN105972822A (en) * | 2016-06-14 | 2016-09-28 | 珠海格力电器股份有限公司 | Heat pump water heater and adjusting method thereof |
| CN109708376A (en) * | 2018-07-13 | 2019-05-03 | 青岛海尔股份有限公司 | A kind of refrigerator refrigeration system |
| CN109737631A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
| CN109737630A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
| CN110529966A (en) * | 2019-09-09 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A variable refrigerant volume air conditioning system and its control method |
| CN111174368A (en) * | 2020-01-07 | 2020-05-19 | 宁波奥克斯电气股份有限公司 | Method for automatically adjusting refrigerant quantity of air conditioner and air conditioning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11248266A (en) * | 1998-03-05 | 1999-09-14 | Mitsubishi Electric Corp | Air conditioners and condensers |
| JP2000179957A (en) * | 1998-12-17 | 2000-06-30 | Hitachi Ltd | Air conditioner |
| CN1181301C (en) * | 2000-04-26 | 2004-12-22 | 株式会社电装 | Refrigerant cycle system |
| KR20090020305A (en) * | 2007-08-23 | 2009-02-26 | 엘지전자 주식회사 | Air conditioner |
| CN201945110U (en) * | 2011-01-10 | 2011-08-24 | 珠海格力电器股份有限公司 | Refrigerant quantity control device and air conditioning unit with same |
| CN102395842A (en) * | 2009-04-17 | 2012-03-28 | 大金工业株式会社 | Heat source unit |
-
2012
- 2012-12-24 CN CN201210570242.5A patent/CN103900300B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11248266A (en) * | 1998-03-05 | 1999-09-14 | Mitsubishi Electric Corp | Air conditioners and condensers |
| JP2000179957A (en) * | 1998-12-17 | 2000-06-30 | Hitachi Ltd | Air conditioner |
| CN1181301C (en) * | 2000-04-26 | 2004-12-22 | 株式会社电装 | Refrigerant cycle system |
| KR20090020305A (en) * | 2007-08-23 | 2009-02-26 | 엘지전자 주식회사 | Air conditioner |
| CN102395842A (en) * | 2009-04-17 | 2012-03-28 | 大金工业株式会社 | Heat source unit |
| CN201945110U (en) * | 2011-01-10 | 2011-08-24 | 珠海格力电器股份有限公司 | Refrigerant quantity control device and air conditioning unit with same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121725A (en) * | 2014-07-09 | 2014-10-29 | 广东美的暖通设备有限公司 | Heat pump system and control method thereof |
| CN105972822A (en) * | 2016-06-14 | 2016-09-28 | 珠海格力电器股份有限公司 | Heat pump water heater and adjusting method thereof |
| CN109708376A (en) * | 2018-07-13 | 2019-05-03 | 青岛海尔股份有限公司 | A kind of refrigerator refrigeration system |
| CN109708376B (en) * | 2018-07-13 | 2020-06-23 | 青岛海尔股份有限公司 | Refrigerator refrigerating system |
| CN109737631A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
| CN109737630A (en) * | 2018-08-28 | 2019-05-10 | 广东志高暖通设备股份有限公司 | Defrost air-conditioning system is not shut down |
| CN110529966A (en) * | 2019-09-09 | 2019-12-03 | 宁波奥克斯电气股份有限公司 | A variable refrigerant volume air conditioning system and its control method |
| CN111174368A (en) * | 2020-01-07 | 2020-05-19 | 宁波奥克斯电气股份有限公司 | Method for automatically adjusting refrigerant quantity of air conditioner and air conditioning system |
| CN111174368B (en) * | 2020-01-07 | 2021-10-15 | 宁波奥克斯电气股份有限公司 | Method and air-conditioning system for an air conditioner to automatically adjust the amount of refrigerant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103900300B (en) | 2016-03-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103900300B (en) | Air-conditioner and control method thereof | |
| CN105115065A (en) | Air conditioner control method | |
| CN105240996A (en) | Method for controlling air conditioner | |
| CN106801977B (en) | A method, system and air conditioner for adjusting the operating state of an air conditioner | |
| CN204786771U (en) | Air conditioner | |
| US4850201A (en) | Precision-controlled water chiller | |
| US10544957B2 (en) | Air conditioner and control method therefor | |
| CN105509261B (en) | The control method of air conditioner and air conditioner | |
| CN105091204A (en) | Control method of multi-split system | |
| CN104949207A (en) | Temperature-humidity double-control type air conditioner system and control method thereof | |
| CN104566823A (en) | Refrigerant control method of parallel multi-split air-conditioner | |
| CN107036245B (en) | Multi-split air conditioner system and control device and method of outdoor compressor thereof | |
| CN104534732A (en) | Air conditioner | |
| CN110529965B (en) | Low-temperature heating air-conditioning system and control method thereof | |
| CN113432204B (en) | Air conditioner, control method of air conditioner, and control device of air conditioner | |
| CN113432348A (en) | Refrigerant circulation quantity adjusting device and method and air conditioning system | |
| CN105318491B (en) | The control method and device of air conditioner | |
| CN110579036A (en) | Multi-split cold and hot water system and control method thereof | |
| CN203454503U (en) | Air conditioner | |
| CN110940103A (en) | Constant temperature refrigerating system and storage and transportation equipment | |
| CN115451463A (en) | Adjustable heat exchange system, control method thereof and air conditioner | |
| CN220911563U (en) | Air conditioner | |
| CN105202837A (en) | Multi-split air conditioning system and intermediate pressure control method thereof | |
| CN116147280A (en) | Refrigerator control method and refrigerator | |
| CN104748424A (en) | Outdoor unit assembly of multiple on-line system and multiple on-line system with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 |