CN101761976A - Air conditioner - Google Patents
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- CN101761976A CN101761976A CN200810190577A CN200810190577A CN101761976A CN 101761976 A CN101761976 A CN 101761976A CN 200810190577 A CN200810190577 A CN 200810190577A CN 200810190577 A CN200810190577 A CN 200810190577A CN 101761976 A CN101761976 A CN 101761976A
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Abstract
The invention provides an air conditioner, which comprises a compressor, at least one outdoor heat exchanger and at least one indoor heat exchanger, wherein the indoor heat exchanger of the air conditioner is formed by connecting in parallel a plurality groups of heat exchangers; an electric flow distributor is arranged in front of the indoor heat exchanger to dynamically perform flow distribution on the plurality groups of heat exchangers connected in parallel, so that flow is reasonably and scientifically distributed among the plurality groups of heat exchangers to further achieve better heat transfer effect. The air conditioner makes the flow reasonably and scientifically distributed among each group of heat exchangers of the heat exchangers so as to fully develop the heat exchange function of the heat exchangers, reduce the waste of heat exchange areas and improve the efficiency of a whole air conditioning system.
Description
Technical field
The invention belongs to a kind of air-conditioning, specifically a kind ofly adopt many groups heat exchangers in parallel to form a heat exchanger and before the heat exchanger that multi-group heat exchanger is formed, adopt electric flow distributor to carry out the air-conditionings of dynamic and intelligent ground assignment of traffic for improving the heat exchange effect.
Background technology
Air-conditioning of the prior art mostly comprises indoor heat converter, outdoor heat converter, parts such as compressor and throttling arrangement, present development along with hot swapping, in order to improve the effect of heat exchange, many heat exchangers progressively adopt a kind of micro channel heat exchanger, but generally on flowing, still adopt a kind of mode that back and forth flows, as Fig. 1, heat exchanger comprises the collector tube 12 on the left side, the collector tube 12 ' on the right and be connected flat tube between the two and be arranged on and be used to the heat transfer sheet that conducts heat between the flat tube, the collector tube 12 on the left side, the collector tube 12 ' on the right all is separated into a plurality of relatively independent spaces, wherein a kind of flow direction is shown in solid arrow direction among the figure, medium is flowed into from pipeline 11, through collector tube 12, flow to the right by the flat tube that conducts heat from collector tube 12, and the heat transfer sheet of arranging outward by flat tube and flat tube conducts heat, behind the right collector tube 12 ', flow left through second group of flat tube from the right collector tube 12 ' again, return the collector tube 12 on the left side, flow to another relatively independent space of the right collector tube 12 ' from the collector tube 12 on the left side to the right by the 3rd group of flat tube again, and flow out from this space by pipeline 15.Another flow direction is then opposite, shown in the dotted arrow direction among the figure.
This heat transfer type can obviously improve compared with traditional effectiveness of heat exchanger, but mainly also there is a problem, the operating mode of heat transfer medium can progressively change after heat transfer medium flows from first flat tube, and being provided with of heat transfer path is the same substantially, can produce bigger influence to heat-transfer effect like this, what come in as flowing at the beginning is under the situation of liquid refrigerant, what flow at the beginning in first group of flat tube is liquid refrigerant, along with flowing of cold-producing medium, existing a part of cold-producing medium evaporates and becomes gas during for the first time to the collector tube 12 ' on the right, at this moment be the cold-producing medium that the gas-liquid binary states mixes, turning left mobile like this in the 2nd group of flat tube is exactly the cold-producing medium that two-phase is mixed, and heat-transfer effect will obviously descend like this; The ratio regular meeting of the cold-producing medium of the gaseous state that flows in the 3rd group of flat tube is higher, and correspondingly heat-transfer effect can be lower.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is the problem that overcomes heat-transfer effect difference in the prior art diabatic process, and a kind of heat-transfer effect air-conditioning relatively preferably is provided.For this reason, the present invention is by the following technical solutions:
A kind of air-conditioning, comprise compressor, at least one outdoor heat converter and at least one indoor heat converter, the indoor heat converter of this air-conditioning or outdoor heat converter adopt multi-group heat exchanger to compose in parallel, and electric flow distributor is housed also before this heat exchanger, multi-group heat exchanger to association carries out dynamic assignment of traffic, makes between this multi-group heat exchanger assignment of traffic reasonable, reaches a heat-transfer effect preferably.
Preferably, the indoor heat converter in the described air-conditioning adopts multi-group heat exchanger to compose in parallel, and described electric flow distributor substitutes throttling mechanisms such as expansion valve carrying out also finishing throttling when flow dynamics is distributed.
Preferably, the outlet of described multi-group heat exchanger is provided with sensor, and it is the testing result of sensor of the outlet of heat exchanger that described electric flow distributor carries out at one of basis of the dynamic assignment of the flow of each heat exchanger.
Preferably, described sensor is temperature sensor or pressure sensor.
Preferably, described outdoor heat converter adopts multi-group heat exchanger to compose in parallel.
Preferably, electric flow distributor is housed before the described outdoor heat converter multi-group heat exchanger of association is carried out dynamic assignment of traffic.
Preferably, described compressor is a variable conpacitance compressor.
The present invention adopts a kind of method of multi-group heat exchanger group of parallel connection by make indoor heat converter or outdoor heat converter in air-conditioning, operating mode when medium is flowed in heat exchanger can be consistent substantially, and by an electric flow distributor is set before heat exchanger, distribute and control by dynamic and intelligent the rate-of flow of every group of heat exchanger, the uniformity of the medium state that flows in the flat tube of the multi-group heat exchanger of raising heat exchanger, give full play to its heat exchange effect, reduce the waste of heat exchange area, thereby further improve heat-transfer effect, thereby improve the whole Energy Efficiency Ratio of air-conditioning, reach an energy-conservation effect.
Description of drawings
Fig. 1: a kind of structural representation of heat exchanger in the prior art;
Fig. 2: the rough schematic of first kind of embodiment of air-conditioning of the present invention;
Fig. 3: the rough schematic of second kind of embodiment of air-conditioning of the present invention;
Fig. 4: the rough schematic of the third embodiment of air-conditioning of the present invention;
Fig. 5: the structural representation of a kind of embodiment of the employed electric flow distributor of air-conditioning of the present invention;
Fig. 6: the structural representation of the another kind of embodiment of electric flow distributor of the present invention;
Fig. 7: the partial structurtes schematic diagram of electric flow distributor shown in Figure 6;
The specific embodiment
Below in conjunction with accompanying drawing, specify embodiments of the present invention, air-conditioning of the present invention is owing to be a kind of everybody known technology, therefore do not repeat other parts and control method same as the prior art here, here no longer introduce as other conventional element such as blower fan, magnetic valve, gas-liquid separator and control circuit, control method that some are conventional, following mask body is introduced difference from prior art.
As shown in Figure 2, Fig. 2 is the rough schematic of first kind of embodiment of air-conditioning of the present invention.Air-conditioning of the present invention comprises compressor 1, outdoor heat converter 2, expansion valve 3, indoor heat converter 5, indoor heat converter 5 comprises first collector tube that is separated into a plurality of relatively independent spaces, the collector tube of opposite side, the multi-group heat exchanger that the flat tube that flows to the collector tube of opposite side from a plurality of relatively independent space of first collector tube etc. is formed: 5a, 5b, 5c, the benefit that indoor heat converter is provided with like this is that the operating mode in the multi-group heat exchanger can be consistent substantially, thereby can give full play to the heat exchanger effectiveness of indoor heat converter, improve the Energy Efficiency Ratio of this air-conditioning system, all be provided with a temperature sensor 501 at the outlet position of this multi-group heat exchanger for this reason, 502,503.
Be giving full play to of the heat exchange efficiency that guarantees multi-group heat exchanger, before indoor heat converter 5, also be provided with the dynamic assignment that an electric flow distributor 4 carries out flow between the multi-group heat exchanger, the quantity of the outlet of electric flow distributor is corresponding with the quantity of heat exchanger consistent, one group of heat exchanger is given in each export supply, electric flow distributor is dynamically adjusted the rate-of flow that leads to every group of heat exchanger according to the testing result of the temperature sensor of the outlet position setting of every group of heat exchanger during concrete work, under at refrigeration mode, detect the higher relatively heat exchanger of outlet temperature and improve quantity or the corresponding proportion that its flow is supplied with, reduce quantity or the corresponding proportion that its flow is supplied with at the relatively low heat exchanger of outlet temperature, impel the operating mode of the medium between the multi-group heat exchanger to be consistent substantially like this, electric flow distributor can carry out the adjustment of an assignment of traffic ratio at regular intervals according to testing result, this time can be provided with as required, as can carrying out once by per second for improving distribution and control accuracy, also can be provided with more longerly relatively, as carrying out every one fen kind once or the like, and electric flow distributor requires to carry out the dynamic assignment of flow always according to the control of system, is supplied to every group of heat exchanger with guaranteeing the rate-of flow all-the-time stable.
Like this, the flow of the medium by every group of heat exchanger, just can adjust accordingly according to the situation of its outlet, if not fully evaporation of outlet medium as one group of heat exchanger, just can reduce its supply, if reached 5 degree as its degree of superheat and another its outlet temperature of group heat exchanger is too high, then can suitably increase the medium supply of its cold-producing medium, its degree of superheat is reduced.So just avoid the waste of heat transfer area and the waste of medium, helped improving the heat exchange effect, thereby improved the Energy Efficiency Ratio of whole air-conditioning.
Detection at every group of heat exchanger is not limited to detect its outlet temperature in addition, also can detect its outlet pressure and by judging that in conjunction with its outlet temperature its degree of superheat draws the comprehensive condition of heat-transfer effect, or the like.
Another embodiment as shown in Figure 3, Fig. 3 is the rough schematic of second kind of embodiment of air-conditioning of the present invention.The difference of this embodiment and above-mentioned embodiment is: the electric flow distributor 4 ' in this embodiment has substituted the expansion valve in the above-mentioned embodiment and has finished dynamic assignment control and throttling to the flow of the multi-group heat exchanger of indoor heat converter simultaneously, the effect of medium throttling is carried out in the outlet of electric flow distributor simultaneously like this, like this outlet can be provided with compare less, the profile of electric flow distributor also can be less like this, power is also smaller, promptly can realize miniaturization, because substituted original expansion valve, manufacturing cost also can further reduce so in addition.
Electric flow distributor 4 ' as shown in Figure 5, Fig. 5 is the structural representation of a kind of embodiment of electric flow distributor of the present invention.Electric flow distributor have an entrance sleeve 701 and import 701a, with the corresponding a plurality of discharge connection 703a of heat exchanger quantity, 703b, 703c and outlet 702a, the 702b, the 702c that communicate with discharge connection, three outlet 702a, 702b, 702c are connected with three discharge conection 703a, 703b, 703c by exit passageway 704a, 704b, 704c respectively, and three latus rectums that export the latus rectum of 702a, 702b, 702c much smaller than three discharge conection 703a, 703b, 703c.Electric flow distributor 4 ' also comprises shell 709 and valve seat 705, valve pocket 710 of shell 709 and valve seat 705 common formation, the first half of this valve seat 705 is fixed in the described valve pocket, valve pocket 710 is taken over 701 by import 701a with input and is connected, the plane 705b that described import 701a is arranged on valve seat 705 upward and with valve pocket 710 communicates, valve seat 705 is being provided with a planar bottom surface 705a near the first half in the valve pocket 710, and described three outlet 702a, 702b, 702c are arranged on the relative middle part of valve seat 705.Relative with valve seat also be provided with one and be used for the guiding valve 706 of a plurality of outlets of conducting respectively, thereby electric flow distributor is by outer coil component energising makes actuation mechanism action in the valve pocket drive guiding valve 706 actions to realize distribution and throttling to the flow of described a plurality of outlets to valve casing.Actuation mechanism in the present embodiment is driven by a stepper motor, comprise shell 709 outer fixing coil components 711 and the action element in the shell, action element in the present embodiment comprises magnetic rotor component 707, under driving, magnetic rotor component can come a drive disk assembly of back rotation, magnetic rotor component and drive disk assembly drive guiding valve 706 constantly rotate or rotate and arrive certain position after pause, when system moves, control module sends corresponding pulse signal to the coil component 711 of electric flow distributor, thereby coil component is realized break-make between a plurality of phase places by receiving corresponding pulse signal, thereby the magnetic rotor component 707 not stalls in the drive shell are moving, magnetic rotor component drives drive disk assembly 708 again and guiding valve 706 constantly rotates, thereby by a plurality of outlet 702a on the conducting orifice 706a control valve seat on the guiding valve, 702b, the time scale of 702c and valve pocket 710 conductings, thereby realize described a plurality of outlet 702a, 702b, the dynamic assignment of flow between the 702c, cold-producing medium also is assigned to every group of heat exchanger respectively after the throttling again by the outlet distribution of electric flow distributor.The flow of every group of heat exchanger just can be controlled respectively like this.
The control of air-conditioning of the present invention partly briefly introduces as follows: detection control circuit of the present invention comprises detection system, testing result is carried out the detection signal conversion delivery unit that digital signal processing unit was changed and be sent to signal, carry out comprehensive analysis and judgement and send the digital signal processing unit of corresponding control signal according to the signal that receives, the control signal that reception sends out from digital signal processing unit is also implemented the control module of concrete control to self controlled elements such as electric flow distributors.The detection system of present embodiment has also comprised multi-group heat exchanger 5a, 5b, the set temperature sensor 501,502,503 in 5c outlet position.The cold-producing medium that electric flow distributor will be come from outdoor heat converter is according to the indoor situation of air-conditioning system and be provided with and require and every group of detected outlet temperature situation of heat exchanger judges comprehensively that by digital signal processing unit the signal that the back is sent distributes the flow between a plurality of outlet recited above and finishes throttling simultaneously, make then be assigned with and throttling after cold-producing medium flow to corresponding heat exchanger respectively by collector tube.Digital signal processing unit of the present invention can adopt fuzzy control method, under the less relatively situation of heat exchanger package number, also can adopt the mode of accurate control.
The pattern of concrete dynamic assignment can be as follows: digital signal processing unit is according to three groups of heat exchanger 5a that detect indoor heat converter 5,5b, the temperature sensor 501 that the outlet position of 5c is set, 502, the requirement of the operating mode that 503 temperature and air-conditioning are set, the outlet temperature of judging which group in the multi-group heat exchanger is higher, when sending corresponding control signal stepper motor rotated according to judged result to the outlet conduction position corresponding near the time with this group heat exchanger corresponding velocity of rotation slow down or stepper motor turned to the dead time of the corresponding outlet conduction position of this group heat exchanger and extend, thereby the flow proportional of the cold-producing medium that flows out by this outlet is increased, thereby improve the supply of air-conditioning system to the flow of this group heat exchanger, the outlet temperature of this group heat exchanger just can reduce like this.
Another allocation model is with top just in time opposite, digital signal processing unit is according to three groups of heat exchanger 5a that detect indoor heat converter 5,5b, the temperature sensor 501 that the outlet position of 5c is set, 502, the requirement of the operating mode that 503 temperature and air-conditioning are set, judge the outlet temperature of which group in three groups of heat exchangers on the low side be evaporation fully of medium, when sending corresponding control signal stepper motor rotated according to judged result to the outlet conduction position corresponding near the time with this group heat exchanger corresponding velocity of rotation quickening or dead time that stepper motor is turned to the corresponding outlet conduction position of this group heat exchanger shorten, thereby the flow proportional of the cold-producing medium that flows out by this outlet is reduced, thereby reduce the supply of the refrigerant medium of air-conditioning to the flow of this group heat exchanger, the refrigerant medium in this group heat exchanger can evaporate and make outlet temperature to rise fully like this.
In two kinds of embodiments recited above, preferably, corresponding compressor is preferably the compressor of varying capacity, it is comprehensive when on the low side to detect the outlet temperature of multi-group heat exchanger in detection system, can reduce the discharge capacity of the outlet of compressor, and it is comprehensive when higher to detect the outlet temperature of multi-group heat exchanger in detection system, can improve the discharge capacity of the outlet of compressor, and the efficiency specific energy of air-conditioning further improves like this.At this moment, digital signal processing unit is according to the requirement of the set operating mode of the temperature of the set temperature sensor 501,502,503 in the outlet position of the multi-group heat exchanger 5a, the 5b that detect indoor heat converter 5,5c and air-conditioning, can carry out a comprehensive judgement earlier, whether the flow of judging total cold-producing medium that air-conditioning system is supplied is sufficient, when the indoor heat converter outlet temperature is comprehensively afterwards higher, can increase supply, as increasing the rotating speed of compressor to the cold-producing medium of whole air-conditioning; When the indoor heat converter outlet temperature is comprehensively afterwards on the low side, reduce supply to the cold-producing medium of whole air-conditioning; Meanwhile, the more higher heat exchanger of outlet temperature is increased corresponding electric flow distributor and reduce the allocation proportion of corresponding electric flow distributor it to its allocation proportion or to outlet temperature heat exchanger on the low side.Two kinds of embodiments recited above in addition are the mode that indoor heat converter adopts the multi-group heat exchanger parallel connection, correspondingly, also can be the modes that outdoor heat converter adopts the multi-group heat exchanger parallel connection.
The third embodiment of air-conditioning of the present invention is described below in conjunction with Fig. 4.As can be seen from Figure 4, this embodiment and second embodiment are basic identical, main distinction point is: the outdoor heat converter of this air-conditioning is also composed in parallel by multi-group heat exchanger, also be provided with an electric flow distributor 4a accordingly before this outdoor heat converter, the export volume of electric flow distributor 4a is corresponding with the heat exchanger package number of outdoor heat converter.Similarly, the outlet at the multi-group heat exchanger of this outdoor heat converter 2 ' also is respectively arranged with temperature sensor 201,202,203; When concrete work, electric flow distributor 4a carries out the distribution of the flow of every group of heat exchanger according to the situation of the operating mode of the outlet of the heat exchanger of outdoor heat converter 2 ', makes the heat-transfer effect of every group of heat exchanger reach a more satisfactory state.Other is identical with above-mentioned embodiment for this embodiment, no longer repeats here.
In addition, because axle 808 remains with certain clearance between the some of body cavity and valve body 805 inner chambers, therefore turning to conduction element 815 at axle 808 covers outlet and makes under the situation of outlet and valve pocket 810 incomplete conductings, still can there be a certain amount of refrigerant medium to pass through, have just guaranteed a basic through-current capacity from these outlets.It is big that basic through-current capacity is if desired wanted, and can make conduction element fixing on the axle 808 815 big slightly with the gap of valve body 805.
In order to make axle 808 more flexible when rotating, reduce the wearing and tearing of axle in rotation process, prolong the rotation life-span of axle, thereby guarantee the service life of electric flow distributor, can a bearing 812 be set at axle 808 and valve body 805 bottom fixed positions, as shown in the figure, be provided with a recess that is used for fixing bearing 812 in the bottom of valve body, be placed with the bearing 812 of the oil-free lubrication of an anti-cold-producing medium at this recess, like this when axle 808 rotates with magnetic rotor component, axle does not just directly contact with valve body 805, and the less relatively and friction loss of Zhou rotary resistance does not have substantially like this, and the power consumption of electric flow distributor also just can be smaller like this.As need further reducing to drive the resistance that axle rotates, can also between shell 809 and axle 808, also fix by bearing 812b.Can make towards the flow of each heat exchanger by this electric flow distributor like this and obtain reasonably a dynamic assignment and a control, improve the heat exchange efficiency of outdoor heat converter.
Can make the operation of air-conditioning be in a basic perfect condition like this, under the situation that air-conditioning system is had relatively high expectations, also should be at whole detection, judge, control procedure is carried out closed-loop control and is kept memory, further judge whether original program schema is reasonable, unreasonable as original program schema, because of the variation of external environment causes or because of personal like not under the square one, digital processing element can suitably be adjusted the program schema of original control and regulation, to satisfy the hobby that whole air-conditioning system satisfies actual user on the one hand, whole air-conditioning system is in an economical operation state again simultaneously.
In addition, in the air-conditioning system described above, electric flow distributor is not restricted to several embodiment described above, also can adopt other embodiment fully, as long as make the outlet of electric flow distributor and the heat exchanger quantity of air-conditioning system can be corresponding, and can be as required the flow of each outlet be carried out dynamic assignment control and get final product, even can also adopt 2 discharge conections to supply a heat exchanger etc. simultaneously when being necessary.
The quantity of the outlet of electric flow distributor can be adjusted according to the group number of the heat exchanger of the heat exchanger of air-conditioning in the embodiment recited above, can for 2, more than 3 or 4, its export volume is no less than the group number of the heat exchanger of connected heat exchanger.
In addition, in the several embodiments recited above, the outdoor heat converter of described air-conditioning system all is one, and this is not a limitation of the present invention yet, and outdoor heat converter also can be a plurality of, as 2 or 3 etc.; Indoor heat converter also can be a plurality of, as 2 or 3 etc.
In sum, the present invention is by being provided with the heat exchanger of a band multi-group heat exchanger in air-conditioning, and dispose a corresponding electric flow distributor, thereby can realize that flow reasonably distributes between the multi-group heat exchanger of air-conditioning, the efficient of heat exchanger is not fully exerted, while is set the through-current capacity of each outlet according to the result of the heat-transfer effect of every group of heat exchanger, and avoid fluid operating mode between original heat exchanger to differ the problem of waste such as the heat transfer area that causes the heat-transfer effect difference more greatly, this connection occupation mode is easy simultaneously, the heat transfer efficiency of heat exchanger is improved, and the Energy Efficiency Ratio of air-conditioning is improved.
The above only is several embodiment of the present invention; and be not restriction to application of the present invention; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. air-conditioning, comprise compressor, at least one outdoor heat converter and at least one indoor heat converter, the indoor heat converter or the outdoor heat converter that it is characterized in that this air-conditioning adopt multi-group heat exchanger to compose in parallel, and electric flow distributor is housed also before this heat exchanger, multi-group heat exchanger to association carries out dynamic assignment of traffic, makes between this multi-group heat exchanger assignment of traffic reasonable, reaches a heat-transfer effect preferably.
2. air-conditioning as claimed in claim 1 is characterized in that the indoor heat converter in the described air-conditioning adopts multi-group heat exchanger to compose in parallel, and described electric flow distributor substitutes throttling mechanisms such as expansion valve carrying out also finishing throttling when flow dynamics is distributed.
3. air-conditioning as claimed in claim 1 or 2, the outlet that it is characterized in that described multi-group heat exchanger is provided with sensor, and one of basis that described electric flow distributor carries out dynamic assignment at the flow of each heat exchanger is the testing result of sensor of the outlet of heat exchanger.
4. air-conditioning as claimed in claim 3 is characterized in that described sensor is temperature sensor or pressure sensor.
5. air-conditioning as claimed in claim 2 is characterized in that described outdoor heat converter adopts multi-group heat exchanger to compose in parallel.
6. air-conditioning as claimed in claim 5 is characterized in that being equipped with before the described outdoor heat converter electric flow distributor multi-group heat exchanger of association is carried out dynamic assignment of traffic.
7. as claim 1,2,4,5 or 6 described air-conditionings, it is characterized in that described compressor is a variable conpacitance compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190577A CN101761976A (en) | 2008-12-23 | 2008-12-23 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190577A CN101761976A (en) | 2008-12-23 | 2008-12-23 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101761976A true CN101761976A (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810190577A Pending CN101761976A (en) | 2008-12-23 | 2008-12-23 | Air conditioner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103487154A (en) * | 2012-06-14 | 2014-01-01 | 浙江三花股份有限公司 | Thermal bulb of thermal expansion valve, filling method thereof and refrigerating system with same |
| CN106546036A (en) * | 2016-11-21 | 2017-03-29 | 珠海格力电器股份有限公司 | Shunt head and air-conditioner, the control method of air-conditioner |
| CN110966730A (en) * | 2018-09-28 | 2020-04-07 | 青岛海尔智能技术研发有限公司 | Control method of water chilling unit |
| WO2021037253A1 (en) * | 2019-08-29 | 2021-03-04 | 杭州三花研究院有限公司 | Sensor and heat exchanger |
| WO2023015883A1 (en) * | 2021-08-09 | 2023-02-16 | 青岛海尔空调器有限总公司 | Air conditioner control method and apparatus, electronic device, storage medium, and air conditioner |
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| CN101230928A (en) * | 2007-01-26 | 2008-07-30 | 浙江三花制冷集团有限公司 | Electric switching valve and refrigerator refrigerating cycle device |
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| CN1483974A (en) * | 2002-06-12 | 2004-03-24 | Lg������ʽ���� | Multe-unit air conditioner and control method |
| CN101036012A (en) * | 2004-08-23 | 2007-09-12 | 特拉华兰科有限公司 | Reversing valve assembly with improved pilot valve mounting structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103487154A (en) * | 2012-06-14 | 2014-01-01 | 浙江三花股份有限公司 | Thermal bulb of thermal expansion valve, filling method thereof and refrigerating system with same |
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| CN106546036B (en) * | 2016-11-21 | 2023-08-15 | 珠海格力电器股份有限公司 | Shunt head, air conditioner and adjusting method of air conditioner |
| CN110966730A (en) * | 2018-09-28 | 2020-04-07 | 青岛海尔智能技术研发有限公司 | Control method of water chilling unit |
| WO2021037253A1 (en) * | 2019-08-29 | 2021-03-04 | 杭州三花研究院有限公司 | Sensor and heat exchanger |
| WO2023015883A1 (en) * | 2021-08-09 | 2023-02-16 | 青岛海尔空调器有限总公司 | Air conditioner control method and apparatus, electronic device, storage medium, and air conditioner |
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Application publication date: 20100630 |