CN104006584A - Triple-regulation air conditioner and refrigerant flowing direction switching device thereof - Google Patents
Triple-regulation air conditioner and refrigerant flowing direction switching device thereof Download PDFInfo
- Publication number
- CN104006584A CN104006584A CN201310061141.XA CN201310061141A CN104006584A CN 104006584 A CN104006584 A CN 104006584A CN 201310061141 A CN201310061141 A CN 201310061141A CN 104006584 A CN104006584 A CN 104006584A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- indoor heat
- interface
- heat exchanger
- pressure
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a triple-regulation air conditioner and a refrigerant flowing direction switching device thereof. The refrigerant flowing direction switching device comprises a plurality of control valve assemblies. Each control valve assembly corresponds to one of a plurality of indoor heat exchangers of the triple-regulation air conditioner, and each control assembly is provided with a first connector, a second connector and a third connector. When one indoor heat exchanger is located in the refrigeration state, a first connector and a second connector of a control valve assembly connected with the indoor heat exchanger are communicated, and the first connector and the third connector are disconnected. When the indoor heat exchanger is in the heating state, the first connector and the second connector of the control valve assembly connected with the indoor heat exchanger are disconnected, and the first connector and the third connector are communicated. Each control valve assembly singly controls the corresponding indoor heat exchanger to conduct refrigerating or heating. The refrigerant flowing direction switching device enables one part in the plurality of indoor heat exchangers to conduct refrigeration and enables the other part to conduct heating.
Description
Technical field
The present invention relates to refrigerating/heating equipment manufacturing technology field, particularly a kind of refrigerant of three control air-conditionings flows to switching device shifter and has three control air-conditionings of this device.
Background technology
As everyone knows, general three control refrigerants flow to switching device shifter following problem:
One, general three control refrigerants flow to that switching device shifter is lower and connect in machine must move same pattern, therefore that must every interior machine be all joined a refrigerant and flows to switching device shifter if require every interior machine all can freely select refrigeration, heating operation, and more complicated is installed;
Two, the different interior machine of general three control coolant systems can freeze simultaneously, heating operation, inadequate owing to heating the condensed liquid refrigerants degree of supercooling of interior machine under some bad working environments, can be with the state of gas-liquid two-phase by the electric expansion valve of machine in refrigeration.The refrigerant of gas-liquid two-phase can produce the sound of similar boiling water during by interior organic electronic expansion valve, affects user and uses, and can reduce cold medium flux with gas-liquid two-phase refrigerant by electric expansion valve simultaneously, affects refrigeration, needs improvement badly;
Three, general three control refrigerants flow to switching device shifter, the indoor set front and back of the refrigerating/heating magnetic valve in closed condition pressure reduction before pattern is switched is larger, when refrigerating/heating magnetic valve is opened during switching, can produce very large noise, be unsuitable for user and use, need improvement badly.
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 refrigerant simple in structure and the three control air-conditionings that noise is little and flows to switching device shifter.
Second object of the present invention is to propose to have three control air-conditionings of this device.
According to the refrigerant of three control air-conditionings of the embodiment of the present invention, flow to switching device shifter, comprise: a plurality of control valve assemblies, described in each in a plurality of indoor heat exchangers of control valve assembly and three control air-conditionings one is corresponding, and described in each, control valve assembly all has the first to the 3rd interface, described in each, the first interface of control valve assembly is connected with corresponding described indoor heat exchanger, described in each, and the low pressure gas pipe of three control air-conditionings is connected the second interface of control valve assembly and the 3rd interface is connected with the high-pressure air pipe of three control air-conditionings, wherein said indoor heat exchanger is when refrigerating state, the first interface of the described control valve assembly being connected with this indoor heat exchanger is communicated with the second interface and first interface and the disconnection of the 3rd interface, described indoor heat exchanger is when heating state, the first interface of the described control valve assembly being connected with this indoor heat exchanger is communicated with the 3rd interface with the second interface disconnection and first interface, described in each, control valve assembly is controlled separately corresponding described indoor heat exchanger refrigeration or heats.
According to the refrigerant of three control air-conditionings of the embodiment of the present invention, flow to switching device shifter, separate between each control valve assembly, by controller, controlled respectively, can freeze and another part heats to the part in a plurality of indoor heat exchangers.It is simple in structure that this refrigerant flows to switching device shifter, easy for installation, efficiency of assembling is high, improved the practicality that refrigerant flows to switching device shifter.
In addition, the refrigerant of three control air-conditionings according to the above embodiment of the present invention flows to switching device shifter, can also have following additional technical characterictic:
According to one embodiment of present invention, described in each, control valve assembly comprises the first and second switch valves, the first opening of each in described the first and second switch valves is described first interface, the second opening of described the first switch valve is described the second interface, and the second opening of described second switch valve is described the 3rd interface.Thus, simplify the structure of control valve assembly, reduced the cost of control valve assembly.
According to one embodiment of present invention, described control valve assembly is three-way magnetic valve.Thus, simplify further the structure of system, be convenient to install, improve installation effectiveness.In addition, be also convenient to control.
According to one embodiment of present invention, described three control air-conditionings comprise the high-pressure liquid tube being connected with described a plurality of indoor heat exchangers, and described high-pressure liquid tube comprises: main high-pressure liquid tube, a plurality of sub-high-pressure liquid tube, expansion valve and cooling tubes.Particularly, described in each, the two ends of sub-high-pressure liquid tube are connected with the described indoor heat exchanger corresponding with this sub-high-pressure liquid tube with described main high-pressure liquid tube respectively; One end of described expansion valve is connected with described main high-pressure liquid tube; One end of described cooling tube is connected with described expansion valve and the other end is connected with described low pressure gas pipe, and described cooling tube has with described a plurality of sub-high-pressure liquid tubes and carries out respectively the heat exchanging segment of heat exchange.Thus, increase cooling tube, from high-pressure liquid tube to the mobile refrigerant of low pressure gas pipe at the effect borehole cooling of expansion valve and flow to low pressure gas pipe by cooling tube, now, cooling tube and sub-high-pressure liquid tube carry out exchange heat, have reduced the temperature of the refrigerant that flows to indoor heat exchanger, eliminated and flowed to the phenomenon that the refrigerant gas-liquid of indoor heat exchanger coexists, thereby the expansion valve of having eliminated indoor heat exchanger produces the sound of similar boiling water, in addition, also promoted refrigeration.
According to one embodiment of present invention, described expansion valve is electric expansion valve.Thus, improve the stability of system, and reduced the energy consumption of system.
According to one embodiment of present invention, also comprise pressure-relief valve, the import of described pressure-relief valve is connected with described high-pressure air pipe and outlet is connected with described low pressure gas pipe.Thus, reduce indoor heat exchanger pressure differential between high-pressure air pipe and low pressure gas pipe when refrigeration and heating mode switch, thereby reduced refrigerant, flowed in handoff procedure noise now.
According to one embodiment of present invention, also comprise and being located between described high-pressure air pipe and described low pressure gas pipe for making refrigerant through the pressure-relief valve check valve from high-pressure air pipe to low pressure gas pipe one-way flow.Thus, make refrigerant by high-pressure air pipe to low pressure gas pipe one-way flow, improved the stability of system.
According to one embodiment of present invention, also comprise for filtering the filter of the refrigerant of the described pressure-relief valve of flowing through.Thus, filter the impurity in refrigerant, reduced the fault rate of system and improved stability.
According to one embodiment of present invention, also comprise muffler, described muffler is connected between described pressure-relief valve and described low pressure gas pipe.Thus, reduced further noise.
According to three control air-conditionings of the embodiment of the present invention, comprise that according to the present invention the refrigerant of three control air-conditionings described in previous embodiment flows to switching device shifter.
According to three control air-conditionings of the embodiment of the present invention, the refrigerant that the previous embodiment according to the present invention is installed flows to switching device shifter.Thus, make different indoor heat exchanger in three control air-conditionings freeze simultaneously and to heat, improved the serviceability of three control air-conditionings, simple in structure, easy to assembly.In addition, also reduced the noise in three control air-conditioning use procedures.
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.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is the schematic diagram of the three control air-conditionings of one embodiment of the present of invention;
Fig. 2 is that the refrigerant of pure refrigeration mode of the three control air-conditionings of one embodiment of the present of invention flows to schematic diagram;
Fig. 3 is that the refrigerant of pure heating mode of the three control air-conditionings of one embodiment of the present of invention flows to schematic diagram;
Fig. 4 is that the refrigerant of main refrigeration mode of the three control air-conditionings of one embodiment of the present of invention flows to schematic diagram;
Fig. 5 is that the refrigerant of main heating mode of the three control air-conditionings of one embodiment of the present of invention flows to schematic diagram.
Wherein, refrigerant flows to switching device shifter 1, control valve assembly 3, the first switch valve 31a, 31b, 31f, second switch valve 32a, 32b, 32f, supercooling tube 4a, 4b, 4f, expansion valve 5, pressure-relief valve 6, check valve 7, filter 8, muffler 9, high-pressure air pipe 10, low pressure gas pipe 11, high-pressure liquid tube 12, the first tube connector 13a, 13b, 13f, the second tube connector 14a, 14b, 14f, indoor heat exchanger 15a, 15b, 15f, outer machine 16, compressor 17, oil eliminator 18, cross valve 19, outdoor heat exchanger 20, electric expansion valve 21, cross valve 22, gas-liquid separator 23.
The specific embodiment
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.Below by the embodiment being described with reference to the drawings, be exemplary, 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 indications 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, rather than device or the element of indication 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 indication 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 " a plurality of " 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 to be also electrically connected to; 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 contact by the other feature 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.
As everyone knows, general three control refrigerants flow to switching device shifter following problem: one, general three control refrigerants flow to switching device shifter lower connect in machine must move same pattern, if therefore require every interior machine all can freely select refrigeration, heating operation, that must every interior machine be all joined a refrigerant and flows to switching device shifter, and more complicated is installed; Two, the different interior machine of general three control coolant systems can freeze simultaneously, heating operation, inadequate owing to heating the condensed liquid refrigerants degree of supercooling of interior machine under some bad working environments, can be with the state of gas-liquid two-phase by the electric expansion valve of machine in refrigeration.The refrigerant of gas-liquid two-phase can produce the sound of similar boiling water during by interior organic electronic expansion valve, affects user and uses, and can reduce cold medium flux with gas-liquid two-phase refrigerant by electric expansion valve simultaneously, affects refrigeration, needs improvement badly; Three, general three control refrigerants flow to switching device shifter, the indoor set front and back of the refrigerating/heating magnetic valve in closed condition pressure reduction before pattern is switched is larger, when refrigerating/heating magnetic valve is opened during switching, can produce very large noise, be unsuitable for user and use, need improvement badly.The object of the invention is to solve difficulties more of the prior art.
The refrigerant of describing with reference to the accompanying drawings three control air-conditionings of the embodiment of the present invention in detail flows to switching device shifter.
As shown in Figure 1, according to the refrigerant of three control air-conditionings of the embodiment of the present invention, flow to switching device shifter, comprising: a plurality of control valve assembly 3(3a, 3b as shown in Figure 1 ...).
Particularly, in a plurality of indoor heat exchangers 15 of each control valve assembly 3 and three control air-conditionings is corresponding, and in other words, each control valve assembly 3 is all corresponding with an indoor heat exchanger 15, and control valve assembly 3 is corresponding one by one with indoor heat exchanger 15 in other words.Each control valve assembly 3 all has first interface, the second interface and the 3rd interface.The first interface of each control valve assembly 3 is connected with corresponding indoor heat exchanger 15, and the second interface of each control valve assembly 3 is connected with the low pressure gas pipe 11 of three control air-conditionings, and the 3rd interface of this control valve assembly 3 is connected with the high-pressure air pipe 10 of three control air-conditionings.For example, as shown in Figure 1, control valve assembly 3a has first interface, the second interface and the 3rd interface, the first interface of control valve assembly 3a is connected with indoor heat exchanger 15a, the second interface of control valve assembly 3a is connected with low pressure gas pipe 11, and the 3rd interface of control valve assembly 3a is connected with high-pressure air pipe 10.Wherein indoor heat exchanger 15 is when refrigerating state, and the first interface of the control valve assembly 3 being connected with this indoor heat exchanger 15 is communicated with the second interface, and these control valve assembly 3 first interfaces and the disconnection of the 3rd interface.Indoor heat exchanger 15 is when heating state, and the first interface of the control valve assembly 3 being connected with this indoor heat exchanger 15 and the second interface disconnect, and the first interface of this control valve assembly 3 is communicated with the 3rd interface.For example, as shown in Figure 1, the first interface of control valve assembly 3a is communicated with the second interface and first interface and the 3rd interface while disconnecting, and indoor heat exchanger 15a is in refrigerating state; The first interface of control valve assembly 3a disconnects with the second interface and first interface while being communicated with the 3rd interface, and indoor heat exchanger 15a is in heating state.In addition, each control valve assembly 3 is controlled separately corresponding indoor heat exchanger 15 refrigeration or is heated.
According to the refrigerant of three control air-conditionings of the embodiment of the present invention, flow to switching device shifter, separate between each control valve assembly 3, by controller, controlled respectively, can the part in a plurality of indoor heat exchangers 15 be freezed and another part is heated.It is simple in structure that this refrigerant flows to switching device shifter, easy for installation, efficiency of assembling is high, improved the practicality that refrigerant flows to switching device shifter.
Need explanation time, at described three control air-conditionings in pure refrigeration mode, be that a plurality of indoor heat exchangers 15 are all when refrigerating state, one or more first interface in a plurality of control valve assemblies 3 can be communicated with the second interface and the 3rd interface respectively, to improve the flow efficiency of refrigerant, this is understandable for those of ordinary skill in the art.
As shown in Figures 2 to 5, in some embodiments of the invention, each control valve assembly 3 comprises the first switch valve 31 and second switch valve 32, the first opening of each in the first switch valve 31 and second switch valve 32 is described first interface, in other words, the first end of the first switch valve 31 and second switch valve 32 is connected to form the first interface of this control valve assembly 3, and the second opening of the first switch valve 31 is described the second interface, and the second opening of second switch valve 32 is described the 3rd interface.Thus, simplify the structure of control valve assembly 3, reduced the cost of control valve assembly 3.
In addition, control valve assembly 3 of the present invention can be three-way magnetic valve.Particularly, this triple valve has first interface, the second interface and the 3rd interface, can control that first interface that this triple valve makes this triple valve is communicated with the second interface and first interface and the 3rd interface disconnect, or first interface is communicated with the 3rd interface and first interface and the second interface disconnect, to realize indoor heat exchanger 15 refrigeration of these control valve assembly 3 correspondences or to heat.Thus, simplify further the structure of system, be convenient to install, improve installation effectiveness.In addition, be also convenient to control.
As shown in Figure 1, described three control air-conditionings comprise the high-pressure liquid tube 12 being connected with a plurality of indoor heat exchangers 15, and high-pressure liquid tube 12 comprises: main high-pressure liquid tube, a plurality of sub-high-pressure liquid tubes, expansion valve 5 and cooling tube.Particularly, described main high-pressure liquid tube is connected with the outdoor heat exchanger 20 of three control air-conditionings.Described in each, the two ends of sub-high-pressure liquid tube are connected with the indoor heat exchanger 15 corresponding with this sub-high-pressure liquid tube with described main high-pressure liquid tube respectively, in other words, a plurality of sub-high-pressure liquid tubes are corresponding one by one with a plurality of indoor heat exchangers 15, one end of every sub-high-pressure liquid tube is connected with main high-pressure liquid tube, and the other end is connected with corresponding indoor heat exchanger 15.Expansion valve 5 is connected with described main high-pressure liquid tube.One end of described cooling tube is connected to be connected with described main high-pressure liquid tube by expansion valve 5 with expansion valve 5, and the other end of described cooling tube is connected with low pressure gas pipe 11, and described cooling tube has with a plurality of described sub-high-pressure liquid tubes and carries out respectively the heat exchanging segment of heat exchange.Thus, increase cooling tube, from high-pressure liquid tube 12 to the mobile refrigerant of low pressure gas pipe 11 at the effect borehole cooling of expansion valve 5 and flow to low pressure gas pipe 11 by cooling tube, now, cooling tube and sub-high-pressure liquid tube carry out exchange heat, have reduced the temperature of the refrigerant that flows to indoor heat exchanger 15, eliminated the phenomenon that in the refrigerant that flows to indoor heat exchanger 15, gas-liquid coexists, thereby the sound of having eliminated the expansion valve 5 generation similar boiling water of refrigerant in indoor heat exchanger 15, in addition, has also promoted refrigeration.
As shown in Figure 1, the present invention includes a plurality of supercooling tubes 4 and expansion valve 5, wherein, a plurality of supercooling tubes 4 are corresponding one by one with a plurality of indoor heat exchangers 15, each supercooling tube 4 includes first passage and second channel, and refrigerant flows to carry out heat exchange respectively in first passage and second channel.Particularly, the two ends of the first passage of supercooling tube 4 are connected with the indoor heat exchanger 15 corresponding with this supercooling tube 4 with high-pressure liquid tube 12 respectively, form described sub-high-pressure liquid tube, and the second channel of a plurality of supercooling tubes 4 connects to form described cooling tube mutually.
Further, due to advantages such as the stability of electric expansion valve are higher, and adaptive temperature is low, and overheated setting value is adjustable, therefore, expansion valve 5 of the present invention is electric expansion valve.Thus, improve the stability of system, and reduced the energy consumption of system.
Certainly, expansion valve 5 of the present invention can be also thermal expansion valve.
According to one embodiment of present invention, also comprise pressure-relief valve 6, the import of pressure-relief valve 6 is connected with high-pressure air pipe 10 and outlet is connected with low pressure gas pipe 11, regulates pressure-relief valve 6 can regulate by high-pressure air pipe 10 to the mobile cold medium flux of low pressure gas pipe.Thus, can reduce indoor heat exchanger 15 pressure differential between high-pressure air pipe 10 and low pressure gas pipe 11 when refrigeration and heating mode switch, thereby reduced refrigerant, flow in handoff procedure noise now.
Further, also comprise check valve 7, check valve 7 is located between high-pressure air pipe 10 and low pressure gas pipe 11, for making refrigerant through pressure-relief valve from high-pressure air pipe to low pressure gas pipe one-way flow.Particularly, check valve 7 is located between pressure-relief valve 6 and low pressure gas pipe 11, and in other words, the entrance of check valve 7 is connected with pressure-relief valve 6 and exports and is connected with low pressure gas pipe 11; Or check valve 7 is located between high-pressure air pipe 10 and pressure-relief valve 6, in other words, the entrance of check valve 7 is connected with high-pressure air pipe 10 and exports with pressure-relief valve 6 and is connected.Fig. 1 shows check valve 7 and is located at pressure-relief valve 6 and compresses the situation between tracheae.Thus, make refrigerant by high-pressure air pipe 10 to low pressure gas pipe 11 one-way flows, improved the stability of system.
In addition, also comprise filter 8, filter 8 is for filtering the refrigerant of the pressure-relief valve 6 of flowing through.Thus, filter the impurity in refrigerant, reduced the fault rate of system and improved stability.
Advantageously, also comprise muffler 9, muffler 9 is connected between pressure-relief valve 6 and low pressure gas pipe 11.Thus, reduced further noise.
As shown in Figure 1, by high-pressure air pipe to the mobile refrigerant of low pressure gas pipe flow through respectively pressure-relief valve 6, check valve 7, filter 8 and muffler 9.
The refrigerant of describing with reference to the accompanying drawings three control air-conditionings of the present invention in detail flow to switching device shifter structure and the course of work.
Embodiment 1
Fig. 1 is the three control air-conditioning schematic diagrames of one embodiment of the present of invention.It should be noted that, the present embodiment be take this three control air-conditioning and is had 6 indoor heat exchangers 15 and describe as example.
As shown in Figure 1, wherein, refrigerant flows to switching device shifter 1, control valve assembly 3, the first switch valve 31a, 31b, 31f, second switch valve 32a, 32b, 32f, supercooling tube 4a, 4b, 4f, expansion valve 5, pressure-relief valve 6, check valve 7, filter 8, muffler 9, high-pressure air pipe 10, low pressure gas pipe 11, high-pressure liquid tube 12, the first tube connector 13a, 13b, 13f, the second tube connector 14a, 14b, 14f, indoor heat exchanger 15a, 15b, 15f, outer machine 16, compressor 17, oil eliminator 18, cross valve 19, outdoor heat exchanger 20, electric expansion valve 21, cross valve 22, gas-liquid separator 23.Wherein, one end of each the first tube connector 13 is connected with corresponding indoor heat exchanger 15, and one end of each the second tube connector 14 is connected with corresponding indoor heat exchanger 15.
Above-mentioned refrigerant flows in switching device shifter 1, the first switch valve 31a, 31b ..., 31f, second switch valve 32a, 32b ..., 32f, pressure-relief valve 6, expansion valve 5 be connected with controller (not shown) respectively.
With reference to Fig. 2, when system is moved pure refrigeration mode: indoor heat exchanger 15a, 15b ..., 15f only have one or more refrigeration, do not heat indoor heat exchanger time.For example: when all indoor heat exchangers 15 are refrigerating state, by controller control the first switch valve 31a, 31b ..., 31f is communicated with respectively, control second switch valve 32a, 32b ..., 32f is communicated with respectively.Outside in machine 16, HTHP gaseous coolant from compressor 17 is discharged to oil eliminator 18, then through cross valve 19, arrive outdoor heat exchanger 20 and carry out condensation, condensed liquid refrigerants arrives refrigerant by high-pressure liquid tube 12 again and flows to switching device shifter 1 after electric expansion valve 21 throttlings.
The refrigerant that arrival refrigerant flows to switching device shifter 1 will split into two parts.Wherein, first's liquid refrigerants by high-pressure liquid tube 12 and the second tube connector 14a, 14b ..., 14f arrive respectively corresponding indoor heat exchanger 15a, 15b ..., 15f, and indoor heat exchanger 15a, 15b ..., carry out heat exchange in 15f, then through the first tube connector 13a, 13b ..., 13f gets back to refrigerant and flows to switching device shifter 1.Because the first switch valve 31 and second switch valve 32 are all opened, from indoor heat exchanger 15, be back to the refrigerant that refrigerant flows to switching device shifter 1 and will pass through respectively the first switch valve 31 and second switch valve 32.Wherein, the refrigerant through the first switch valve 31 is back to outer machine 16 by low pressure gas pipe 11; Refrigerant through second switch valve 32 is back to outer machine 16 by high-pressure air pipe 10.For example, for indoor heat exchanger 15a, flow to the refrigerant that refrigerant flows to switching device shifter 1 and arrive indoor heat exchanger 15a through the second tube connector 14a, and in indoor heat exchanger 15a, carry out heat exchange, then through the first tube connector 13a, get back to refrigerant and flow to switching device shifter 1.Because the first switch valve 31a and second switch valve 32a all open, from indoor heat exchanger 15a, be back to the refrigerant that refrigerant flows to switching device shifter 1 and will pass through respectively the first switch valve 31a and second switch valve 32a.Wherein, the refrigerant through the first switch valve 31a is back to outer machine 16 by low pressure gas pipe 11; Refrigerant through second switch valve 32a is back to outer machine 16 by high-pressure air pipe 10.Second portion liquid refrigerants flows to expansion valve 5 by high-pressure liquid tube 12, and carries out throttling by expansion valve 5, the refrigerant after throttling flow through successively supercooling tube 4a, 4b ..., 4f is back to outer machine 16 by low pressure gas pipe 11.Refrigerant through supercooling tube 4a, 4b ..., during 4f by with from high-pressure liquid tube 12, to the mobile refrigerant of each indoor heat exchanger, carry out heat exchange.
The refrigerant that is back to outer machine by low pressure gas pipe 11 arrives gas-liquid separator 23, and the refrigerant that is back to outer machine 16 by high-pressure air pipe 10 is through cross valve 22 arrival gas-liquid separators 23.All gaseous coolants after gas-liquid separator 23 separation are back to compressor 17 and realize refrigerant circulation.
With reference to Fig. 3, when system is moved pure heating mode: indoor heat exchanger 15a, 15b ..., 15f only has one or more to heat, while there is no the indoor heat exchanger 15 of refrigeration.For example: when all indoor heat exchanger 15a, 15b ..., 15f is while heating state, by controller control the first switch valve 31a, 31b ..., 31f disconnects respectively, control second switch valve 32a, 32b ..., 32f is communicated with respectively.HTHP gaseous coolant to oil eliminator 18, then arrives refrigerant through cross valve 22 by high-pressure air pipe 10 and flows to switching device shifter 1 from compressor 17 is discharged.Arrive refrigerant that refrigerant flows to switching device shifter 1 pass through respectively second switch valve 32a, 32b ..., 32f and the first tube connector 13a, 13b ..., 13f arrive corresponding indoor heat exchanger 15a, 15b ..., 15f carries out condensation.Condensed liquid refrigerants flows to high-pressure liquid tube 12 by the second tube connector, and the refrigerant being refluxed by indoor heat exchanger will be through corresponding supercooling tube.For example, take indoor heat exchanger 15a as example explanation, the refrigerant that arrival refrigerant flows to switching device shifter 1 arrives corresponding indoor heat exchanger 15a condensation through second switch valve 32a and the first tube connector 13a.Condensed liquid refrigerants flows to high-pressure liquid tube 12 by the second tube connector 14a, from indoor heat exchanger 15a, flows to high-pressure liquid tube 12 through supercooling tube 4a.
By indoor heat exchanger 15a, 15b ..., the 15f refrigerant that is back to high-pressure liquid tube 12 is divided into two parts, wherein, first's refrigerant through after expansion valve 5 throttlings successively by supercooling tube 4a, 4b ..., get back to low pressure gas pipe 11 after 4f, and be back to outer machine 16 by low pressure gas pipe 11.Refrigerant flow through supercooling tube 4a, 4b ..., during 4f, will at corresponding supercooling tube, carry out heat exchange with the refrigerant that flows to high-pressure liquid tube 12 from indoor heat exchanger 15.Second portion refrigerant is back to outer machine 16 by high-pressure liquid tube 12.
The refrigerant that is back to outer machine 16 by low pressure gas pipe 11 flows to gas-liquid separator 23, and by high-pressure liquid tube 12, is back to the refrigerant arrival outdoor heat exchanger 20 of outer machine 16, and carries out heat exchange at outdoor heat exchanger 20, then by cross valve 19, arrives gas-liquid separators 23.All gaseous coolants after gas-liquid separator 23 separation are got back to compressor 17 compressions and are realized refrigerant circulation.
With reference to Fig. 4, when the main refrigeration mode of three control operation of air conditioner: indoor heat exchanger 15a, 15b ..., have a refrigeration in 15f at least and have at least one to heat, and refrigeration demand is greater than the demand of heating.For example: when indoor heat exchanger 15a, 15b ..., 15e running refrigerating, when indoor heat exchanger 15f operation heats, by controller control the first switch valve 31a, 31b ..., 31e is communicated with respectively, second switch valve 32a, 32b ..., 32e disconnects respectively; By controller, control the first switch valve 31f and disconnect, second switch valve 32f is communicated with.
HTHP refrigerant from compressor 17 is discharged to oil eliminator 18.The refrigerant flowing out from oil eliminator 18 will be divided into two parts.A part of refrigerant wherein arrives outdoor heat exchanger 20 through cross valve 19 and carries out condensation, and condensed liquid refrigerants arrives refrigerant by high-pressure liquid tube 12 again and flows to switching device shifter 1 after electric expansion valve 21 throttlings; Another part flows to refrigerant by high-pressure air pipe 10 and flows to switching device shifter 1 after cross valve 22.
A part in refrigerant in high-pressure liquid tube 12 by respectively the second tube connector 14a, 14b ..., 14e arrive corresponding indoor heat exchanger 15a, 15b ..., 15e, refrigerant indoor heat exchanger 15a, 15b ..., 15e carries out after heat exchange refrigeration, through the first tube connector 13a, 13b ..., 13e gets back to refrigerant and flows to switching device shifter 1, then by the first switch valve 31a, 31b ..., through low pressure gas pipe 11, be back to outer machine 16 after 31e.For example, for indoor heat exchanger 15a, a part in refrigerant in high-pressure liquid tube 12 arrives indoor heat exchanger 15a by the second tube connector 14a, refrigerant carries out after heat exchange refrigeration at indoor heat exchanger 15a, through the first tube connector 13a, get back to refrigerant and flow to switching device shifter 1, then by being back to outer machine 16 through low pressure gas pipe 11 after the first switch valve 31a.
Another part refrigerant in high-pressure liquid tube 12 after expansion valve 5 throttlings successively by supercooling tube 4a, 4b ..., through low pressure gas pipe 11, be back to outer machine 16 after 4f.Refrigerant through supercooling tube 4a, 4b ..., during 4f, will with from high-pressure liquid tube 12, flow to indoor heat exchanger 15a, 15b ..., 15e refrigerant carry out heat exchange.
Refrigerant in high-pressure air pipe 10 arrives indoor heat exchanger 15f through second switch valve 32f, the first tube connector 13f and carries out condensation.Condensed liquid refrigerants flows to high-pressure liquid tube 12 by the second tube connector 14f, will carry out but cold when through supercooling tube 4f.The refrigerant that flows to high-pressure liquid tube 12 by with high-pressure liquid tube 12 in refrigerant gather, and along the refrigerant in aforementioned high-pressure liquid tube 12, flow to low pressure gas pipe 11 with the refrigerant in high-pressure liquid tube 12, and be back to outer machine 16 by low pressure gas pipe 11.
The refrigerant being refluxed by low pressure gas pipe 11 arrives gas-liquid separator 23, and all refrigerants after gas-liquid separator 23 separation are got back to compressor 17 compressions and realized refrigerant circulation.
With reference to Fig. 5, when system is moved main heating mode: indoor heat exchanger 15a, 15b ..., 15f has a refrigeration at least and has at least one to heat, and the demand that heats is greater than refrigeration demand.For example: when indoor heat exchanger 15a, 15b ..., 15e operation heats, during indoor heat exchanger 15f running refrigerating, by controller control the first switch valve 31a, 31b ..., 31e disconnects respectively, second switch valve 32a, 32b ..., 32e is communicated with respectively; By controller, control the first switch valve 31f and be communicated with, second switch valve 32f disconnects.
HTHP gaseous coolant from compressor 17 is discharged to oil eliminator 18, then through cross valve 22, by high-pressure air pipe 10, arrive refrigerants and flow to switching device shifter 1, then pass through second switch valve 32a, 32b ..., 32e by corresponding the first tube connector 13a, 13b ..., 13e arrive indoor heat exchanger 15a, 15b ..., 15e carries out heat exchange.Liquid refrigerants after heat exchange through the second tube connector 14a, 14b ..., be back to high-pressure liquid tube 12 after 14e.The refrigerant that is back to high-pressure liquid tube 12 will be shunted.For example, take indoor heat exchanger 15a as example, the refrigerant in high-pressure air pipe 10 arrives indoor heat exchanger 15a by the first tube connector 13a and carries out heat exchange after second switch valve 32a.Liquid refrigerants after heat exchange is back to high-pressure liquid tube 12 after the second tube connector 14a.
Wherein, first's refrigerant after expansion valve 5 throttlings successively by supercooling tube 4a, 4b ..., get back to low pressure gas pipe 11 after 4f.Refrigerant flow through supercooling tube 4a, 4b ..., during 4f, will with from indoor heat exchanger 15a, 15b ..., the 15e refrigerant that is back to high-pressure liquid tube 12 carries out heat exchange.
Second portion refrigerant was undertaken but cold by supercooling tube 4f, then through the second tube connector 14f, arrive indoor heat exchanger 15f, then through the first tube connector 13f, got back to refrigerant and flowed to switching device shifter 1.Then by the first switch valve 31f, flow to low pressure gas pipe 11, and by arriving gas-liquid separator 23 with low pressure gas pipe 11.
Third part refrigerant carries out heat exchange by the rear arrival outdoor heat exchanger 20 of high-pressure liquid tube 12, and the gaseous coolant after heat exchange arrives gas-liquid separator 23 by cross valve 19.
The refrigerant that arrives gas-liquid separator 23 carries out Oil-gas Separation, and all gaseous coolants after separation are got back to compressor 17 compressions and realized refrigerant circulation.
Embodiment 2
With reference to Fig. 1, when indoor heat exchanger 15a, 15b ..., 15f has refrigeration or heating mode when operation, the controller that refrigerant flows to switching device shifter 1 will start cold control function.
Further, above-mentioned expansion valve 5 can require to open according to controller, and operative liquid refrigerant is got back to low pressure gas pipe 11 from high-pressure liquid tube 12 successively after expansion valve 5 throttlings after supercooling tube 4f, 4e, 4d, 4c, 4b, 4a evaporation endothermic.Indoor heat exchanger 15a, 15b ..., the corresponding liquid pipe of 15f refrigerant through supercooling tube 4a, 4b ..., 4f reaches supercooled state after cooling, refrigerant is pure liquid status.
Further, the corresponding refrigeration of refrigerant process indoor heat exchanger 15a, the 15b of the pure liquid state after excessively cold ..., 15f electric expansion valve time can not produce again the sound of similar boiling water, improve the sound quality of indoor heat exchanger, and pure liquid refrigerants can increase through the flow of electric expansion valve, also promoted refrigeration simultaneously.
Embodiment 3
With reference to Fig. 1, when indoor heat exchanger pattern need to be switched, as refrigeration mode is switched to heating mode, first close corresponding indoor heat exchanger the first switch valve 31a, 31b ..., 31f, open pressure-relief valve 6 simultaneously and carry out release, after 30 seconds high-low pressure pressure reduction can reduce at this moment to open again corresponding indoor heat exchanger second switch valve 32a, 32b ..., 32f, switch to heating mode, close pressure-relief valve 6 simultaneously.Therefore sound is also less during the less switching of high-low pressure pressure reduction owing to switching, reach the object of the noise that reduces to commutate.
Further, when in above-mentioned handoff procedure, pressure-relief valve 6 is opened, because high-low pressure pressure reduction can produce larger sound greatly equally, therefore pressure-relief valve of the present invention 6 adopts, be small-bore magnetic valve, the cold medium flux in the time of can reducing release, thereby noise while reducing release.Filter 8, muffler 9 have been installed after pressure-relief valve 6, can have reached the object that further reduces noise simultaneously.
According to three control air-conditionings of the embodiment of the present invention, comprise that the refrigerant for three control air-conditionings of the previous embodiment according to the present invention flows to switching device shifter.
According to three control air-conditionings of the embodiment of the present invention, the refrigerant that the three control air-conditionings of previous embodiment according to the present invention are installed flows to switching device shifter.Thus, make different indoor heat exchanger 15 in three control air-conditionings freeze simultaneously and to heat, improved the serviceability of three control air-conditionings, simple in structure, easy to assembly.In addition, also reduced the noise in three control air-conditioning use procedures.
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 the specific features of description, structure, material or feature can be with suitable mode combinations 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, modification, replacement and modification.
Claims (10)
1. the refrigerant of three control air-conditionings flows to a switching device shifter, it is characterized in that, comprising:
A plurality of control valve assemblies, described in each in a plurality of indoor heat exchangers of control valve assembly and three control air-conditionings one is corresponding, and described in each, control valve assembly all has the first to the 3rd interface, described in each, the first interface of control valve assembly is connected with corresponding described indoor heat exchanger, described in each, and the low pressure gas pipe of three control air-conditionings is connected the second interface of control valve assembly and the 3rd interface is connected with the high-pressure air pipe of three control air-conditionings, wherein
Described indoor heat exchanger is when refrigerating state, and the first interface of the described control valve assembly being connected with this indoor heat exchanger is communicated with the second interface and first interface and the disconnection of the 3rd interface, and
Described indoor heat exchanger is when heating state, the first interface of the described control valve assembly being connected with this indoor heat exchanger is communicated with the 3rd interface with the second interface disconnection and first interface, and described in each, control valve assembly is controlled separately corresponding described indoor heat exchanger refrigeration or heats.
2. the refrigerant of three control air-conditionings according to claim 1 flows to switching device shifter, it is characterized in that, described in each, control valve assembly comprises the first and second switch valves, the first opening of each in described the first and second switch valves is described first interface, the second opening of described the first switch valve is described the second interface, and the second opening of described second switch valve is described the 3rd interface.
3. the refrigerant of three control air-conditionings according to claim 1 flows to switching device shifter, it is characterized in that, described control valve assembly is three-way magnetic valve.
4. the refrigerant of three control air-conditionings according to claim 1 flows to switching device shifter, it is characterized in that, described three control air-conditionings comprise the high-pressure liquid tube being connected with described a plurality of indoor heat exchangers respectively, and described high-pressure liquid tube comprises:
Main high-pressure liquid tube;
A plurality of sub-high-pressure liquid tubes, described in each, the two ends of sub-high-pressure liquid tube are connected with the described indoor heat exchanger corresponding with this sub-high-pressure liquid tube with described main high-pressure liquid tube respectively;
Expansion valve, one end of described expansion valve is connected with described main high-pressure liquid tube; With
Cooling tube, one end of described cooling tube is connected with described expansion valve and the other end is connected with described low pressure gas pipe, and described cooling tube has with described a plurality of sub-high-pressure liquid tubes and carries out respectively the heat exchanging segment of heat exchange.
5. the refrigerant of three control air-conditionings according to claim 4 flows to switching device shifter, it is characterized in that, described expansion valve is electric expansion valve.
6. the refrigerant of three control air-conditionings according to claim 1 flows to switching device shifter, it is characterized in that, also comprises pressure-relief valve, and the import of described pressure-relief valve is connected with described high-pressure air pipe and outlet is connected with described low pressure gas pipe.
7. the refrigerant of three control air-conditionings according to claim 6 flows to switching device shifter, it is characterized in that, also comprise check valve, described check valve is located between described high-pressure air pipe and described pressure-relief valve or between described pressure-relief valve and described low pressure gas pipe for making refrigerant through described pressure-relief valve from high-pressure air pipe to low pressure gas pipe one-way flow.
8. the refrigerant of three control air-conditionings according to claim 6 flows to switching device shifter, it is characterized in that, also comprises for filtering the filter of the refrigerant of the described pressure-relief valve of flowing through.
9. the refrigerant of three control air-conditionings according to claim 6 flows to switching device shifter, it is characterized in that: also comprise muffler, described muffler is connected between described pressure-relief valve and described low pressure gas pipe.
10. three control air-conditionings, is characterized in that, comprise according to the refrigerant of three control air-conditionings described in any one in claim 1-9 and flow to switching device shifter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061141.XA CN104006584B (en) | 2013-02-26 | 2013-02-26 | Three control air-conditionings and its refrigerant flow to switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310061141.XA CN104006584B (en) | 2013-02-26 | 2013-02-26 | Three control air-conditionings and its refrigerant flow to switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104006584A true CN104006584A (en) | 2014-08-27 |
| CN104006584B CN104006584B (en) | 2017-03-08 |
Family
ID=51367367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310061141.XA Expired - Fee Related CN104006584B (en) | 2013-02-26 | 2013-02-26 | Three control air-conditionings and its refrigerant flow to switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104006584B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158109A1 (en) * | 2014-04-15 | 2015-10-22 | 珠海格力电器股份有限公司 | Heat recovery multi-split air conditioner and control method therefor |
| CN106801942A (en) * | 2017-02-27 | 2017-06-06 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN106931547A (en) * | 2017-03-29 | 2017-07-07 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN108036551A (en) * | 2017-12-18 | 2018-05-15 | 广东美的暖通设备有限公司 | Switching device and there is its multi-gang air-conditioner |
| CN109631424A (en) * | 2018-12-06 | 2019-04-16 | 珠海格力电器股份有限公司 | Refrigerant distributor, three-pipe heating recovery air conditioning system and control method thereof |
| CN110726225A (en) * | 2019-10-12 | 2020-01-24 | 广东美的暖通设备有限公司 | Multi-split system and control method thereof |
| CN112178893A (en) * | 2020-09-22 | 2021-01-05 | 广东美的暖通设备有限公司 | Air conditioner, control method, and computer-readable storage medium |
| CN112344440A (en) * | 2019-08-08 | 2021-02-09 | 安徽美芝精密制造有限公司 | Pipeline assembly of air conditioner indoor unit and air conditioner indoor unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821665A (en) * | 2005-02-15 | 2006-08-23 | Lg电子株式会社 | Multi-air conditioner capable of performing simultaneous cooling and heating |
| CN102889707A (en) * | 2011-07-18 | 2013-01-23 | 三星电子株式会社 | Multi-type air conditioner and method of controlling refrigerant circulation in multi-type air conditioner |
-
2013
- 2013-02-26 CN CN201310061141.XA patent/CN104006584B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1821665A (en) * | 2005-02-15 | 2006-08-23 | Lg电子株式会社 | Multi-air conditioner capable of performing simultaneous cooling and heating |
| CN102889707A (en) * | 2011-07-18 | 2013-01-23 | 三星电子株式会社 | Multi-type air conditioner and method of controlling refrigerant circulation in multi-type air conditioner |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015158109A1 (en) * | 2014-04-15 | 2015-10-22 | 珠海格力电器股份有限公司 | Heat recovery multi-split air conditioner and control method therefor |
| CN106801942A (en) * | 2017-02-27 | 2017-06-06 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN106801942B (en) * | 2017-02-27 | 2020-11-13 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
| CN106931547A (en) * | 2017-03-29 | 2017-07-07 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN106931547B (en) * | 2017-03-29 | 2020-01-07 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
| CN108036551A (en) * | 2017-12-18 | 2018-05-15 | 广东美的暖通设备有限公司 | Switching device and there is its multi-gang air-conditioner |
| CN109631424A (en) * | 2018-12-06 | 2019-04-16 | 珠海格力电器股份有限公司 | Refrigerant distributor, three-pipe heating recovery air conditioning system and control method thereof |
| CN112344440A (en) * | 2019-08-08 | 2021-02-09 | 安徽美芝精密制造有限公司 | Pipeline assembly of air conditioner indoor unit and air conditioner indoor unit |
| CN110726225A (en) * | 2019-10-12 | 2020-01-24 | 广东美的暖通设备有限公司 | Multi-split system and control method thereof |
| CN110726225B (en) * | 2019-10-12 | 2021-01-05 | 广东美的暖通设备有限公司 | Multi-split system and control method thereof |
| CN112178893A (en) * | 2020-09-22 | 2021-01-05 | 广东美的暖通设备有限公司 | Air conditioner, control method, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104006584B (en) | 2017-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104006584A (en) | Triple-regulation air conditioner and refrigerant flowing direction switching device thereof | |
| JP5496217B2 (en) | heat pump | |
| CN102645060B (en) | Multi-split air conditioning system | |
| CN106338112B (en) | Air conditioner heat recovery system | |
| CN216716628U (en) | Heat exchanger and air conditioner | |
| CN104964371B (en) | Combined air-conditioning system | |
| EP2618077B1 (en) | Heat exchanger and air conditioner including same | |
| CN203375758U (en) | Refrigerating cycle system | |
| CN106288564A (en) | Air conditioning system | |
| CN103256749B (en) | Air-conditioning system | |
| CN104350340A (en) | Multi-room air conditioner | |
| CN104154692A (en) | Novel air supply and enthalpy increasing system and control method thereof | |
| JP2015141009A (en) | Heat exchanger for heat source unit of refrigeration device and heat source unit including the same | |
| CN105972717A (en) | Multi-split air conditioning system and control method thereof | |
| CN105605820B (en) | Heat pump system | |
| CN202813592U (en) | air conditioner | |
| CN105042738A (en) | Cooling-heating type air conditioning system and cooling air conditioning system | |
| CN102455090B (en) | Sub-cooling condenser | |
| CN105066501A (en) | Outdoor unit of multi-split air conditioner and multi-split air conditioner comprising same | |
| EP2623872B1 (en) | Heat exchanger and air conditioner comprising the same | |
| CN104422208A (en) | Air conditioning system | |
| CN203908147U (en) | Defrosting device and heat pump | |
| CN207702631U (en) | Air conditioner cooling cycle system and air conditioner | |
| CN105953337B (en) | Ice heat storage air conditioning unit and control method thereof | |
| CN203501527U (en) | Air conditioning system |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |