CN204787396U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN204787396U CN204787396U CN201520488787.0U CN201520488787U CN204787396U CN 204787396 U CN204787396 U CN 204787396U CN 201520488787 U CN201520488787 U CN 201520488787U CN 204787396 U CN204787396 U CN 204787396U
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- check valve
- refrigerant
- heat exchange
- air
- heat exchanger
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Abstract
The utility model discloses an air conditioner relates to the refrigeration field, its travelling comfort height that is applicable to a list room of ordinary family and uses. This air conditioner includes compressor, four -way reversing valve, radiation heat transfer board, first throttle mechanism, indoor side heat exchanger, second throttle mechanism, outdoor side heat exchanger and is linked to be above -mentioned each part the refrigerant piping in return circuit. Wherein, air conditioner still includes valve unit, valve unit is used for controlling the flow direction of refrigerant for under refrigeration and the state of heating, the refrigerant among the refrigerant piping all flows in the radiation heat transfer board earlier, flows in indoor side heat exchanger again. The air conditioner that above -mentioned technical scheme provided, radiation heat transfer board and indoor side heat exchanger are established ties, and both undertake indoor load jointly. Flow in indoor side heat exchanger and through valve unit, the refrigerant all flows in the radiation heat transfer board earlier when realizing cooling / hot after, guarantee the temperature of radiation heat transfer board, promote the heat exchange efficiency of radiation heat transfer board.
Description
Technical field
The utility model relates to refrigerating field, is specifically related to a kind of air-conditioner.
Background technology
Air-conditioning, is also called air-conditioner, air attemperation apparatus.Air-conditioning is divided into conventional domestic air-conditioning and the large class of radiation air-conditioner two.
At present, conventional domestic air-conditioning ubiquity blowing feeling is comparatively strong, noise is comparatively large, wind acts directly on human body when heating, the problem that comfortableness is poor.
Usually concentrated or half concentrated cooling/radiation of heat air-conditioning system many employings cold/hot water is applied to as heat transferring medium, independent temperature-humidity control or be used in combination with other VMCs.Owing to there is the shortcomings such as radiation heat exchange plate surface easily condenses, unit heat exchange amount is less in air-conditioning system, there is larger initial cost cost in single room air-conditioning system being applied to average family, and can not carry out closing etc. shortcoming at any time to it for maintaining room design temperature, be not generally applied to the single room of average family.
At present, be devoted in industry to provide a kind of be applicable to average family single room and the high air-conditioning of comfort.
Utility model content
One of them object of the present utility model proposes a kind of air-conditioner, in order to be applicable to the single room of average family, and improves the comfortableness of product use.
For achieving the above object, the utility model provides following technical scheme:
The utility model provides a kind of air-conditioner, comprises compressor, four-way change-over valve, radiation heat exchange plate, first throttle mechanism, indoor heat exchanger, second throttle body, outdoor heat exchanger and above-mentioned each parts is linked to be the refrigerant pipeline in loop;
Wherein, described air-conditioner also comprises control valve group; Described control valve group is for controlling the flow direction of refrigerant, and make in refrigeration with under heating state, the refrigerant in described refrigerant pipeline all first flows into described radiation heat exchange plate, then flows into described indoor heat exchanger.
Air-conditioner as above, preferably, described control valve group is check valve assembly;
Described check valve assembly be arranged on described four-way change-over valve, described radiation heat exchange plate, between described outdoor heat exchanger and described second throttle body.
Air-conditioner as above, preferably, described check valve assembly comprises the first check valve, the second check valve, the 3rd check valve and the 4th check valve;
The entrance of described first check valve is communicated with described four-way change-over valve, and the outlet of described first check valve is communicated with described radiation heat exchange plate;
The outlet of described second check valve is communicated with described radiation heat exchange plate, and the entrance of described second check valve is communicated with described outdoor heat exchanger;
The entrance of described 3rd check valve is communicated with described second throttle body, and the outlet of described 3rd check valve is communicated with described outdoor heat exchanger;
The entrance of described 4th check valve is communicated with described second throttle body, and the outlet of described 4th check valve is communicated with described four-way change-over valve.
Air-conditioner as above, preferably, is also provided with the 3rd throttle mechanism between described four-way change-over valve and described radiation heat exchange plate, under refrigerating state, the refrigerant in described refrigerant pipeline flows into described radiation heat exchange plate through described 3rd throttle mechanism.
Air-conditioner as above, preferably, air-conditioner also comprises controller and sensor;
Described controller is connected with described 3rd throttle mechanism and described sensor respectively, and described controller is used for detecting according to described sensor the aperture that the dew-point temperature obtained controls described 3rd throttle mechanism.
Air-conditioner as above, preferably, described sensor is Temperature Humidity Sensor.
Air-conditioner as above, preferably, described first throttle mechanism, described second throttle body, described 3rd throttle mechanism are electric expansion valve.
Air-conditioner as above, preferably, described refrigerant is gas-liquid two-phase state refrigerant.
Air-conditioner as above, preferably, described refrigerant is freon, ammonia or carbon dioxide.
Based on technique scheme, the utility model embodiment at least can produce following technique effect:
The air-conditioner that technique scheme provides, radiation heat exchange plate and indoor heat exchanger series connection, radiation heat exchange plate and indoor heat exchanger shared indoor load.Further, by control valve group, when realizing cooling/heat, refrigerant all first flows into radiation heat exchange plate, then flows into indoor heat exchanger, ensures the temperature of radiation heat exchange plate, makes its and indoor environment temperature there is a fixed difference difference, the heat exchange efficiency of lifting radiation heat exchange plate.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, and form a application's part, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Principle schematic during the air-conditioner kind of refrigeration cycle that Fig. 1 provides for the utility model embodiment;
Pressure-enthalpy chart corresponding during the air-conditioner SAPMAC method that Fig. 2 provides for the utility model embodiment;
The principle schematic of the air conditioner heat-production circulation time that Fig. 3 provides for the utility model embodiment.
Reference numeral:
10, compressor; 11, four-way change-over valve; 12, radiation heat exchange plate;
13, first throttle mechanism; 14, indoor heat exchanger; 15, second throttle body;
16, outdoor heat exchanger; 17, check valve assembly; 171, the first check valve;
172, the second check valve; 173, the 3rd check valve; 174, the 4th check valve;
18, the 3rd throttle mechanism.
Detailed description of the invention
Below in conjunction with the elaboration that Fig. 1 ~ Fig. 3 carries out specifically to the technical scheme that the utility model provides.
The utility model embodiment provides a kind of air-conditioner, comprises compressor 10, four-way change-over valve 11, radiation heat exchange plate 12, first throttle mechanism 13, indoor heat exchanger 14, second throttle body 15, outdoor heat exchanger 16 and above-mentioned each parts is linked to be the refrigerant pipeline in loop.Wherein, this air-conditioner also comprises control valve group; Control valve group is for controlling the flow direction of refrigerant, and make in refrigeration with under heating state, the refrigerant in refrigerant pipeline all first flows into radiation heat exchange plate 12, then flows into indoor heat exchanger 14.
Control valve group has multiple way of realization, hereinafter will provide the implementation adopted in the present embodiment.
The air-conditioner that technique scheme provides, radiation heat exchange plate 12 and indoor heat exchanger 14 are connected, radiation heat exchange plate 12 and indoor heat exchanger 14 shared indoor load.By radiation heat exchange plate 12 and indoor heat exchanger 14 with the use of, indoor temperature can be enable to reach user's design temperature quickly, there is larger temperature rise/reduction of speed rate.In addition, by control valve group, when realizing cooling/heat, refrigerant all first flows into radiation heat exchange plate 12, then indoor heat exchanger 14 is flowed into, ensure the temperature of radiation heat exchange plate 12, make itself and indoor environment temperature there is a fixed difference difference, promote the heat exchange efficiency of radiation heat exchange plate 12.
In the present embodiment, control valve group specifically adopts following implementation.
Control valve group is check valve assembly 17.Check valve assembly 17 is arranged on four-way change-over valve 11, radiation heat exchange plate 12 (when being provided with the 3rd throttle mechanism 18, be specially the 3rd throttle mechanism 18 herein, namely Fig. 1 signal situation), between outdoor heat exchanger 16 and second throttle body 15.Check valve assembly 17 for controlling the flow direction of refrigerant, make refrigeration and under heating state refrigerant all first flow into radiation heat exchange plate 12, then flow into indoor heat exchanger 14.Control valve group adopts check valve assembly 17, can simplify the structure of whole system.
The structure of the check valve included by check valve assembly 17 can be identical or different, herein to adopt mutually isostructural check valve, but is not limited thereto.
Particularly, check valve assembly 17 comprises the first check valve 171, second check valve 172, the 3rd check valve 173 and the 4th check valve 174.
The entrance of the first check valve 171 is communicated with four-way change-over valve 11, the outlet of the first check valve 171 and radiation heat exchange plate 12, is communicated with especially by the 3rd throttle mechanism 18.The outlet of the second check valve 172 and radiation heat exchange plate 12, be communicated with especially by the 3rd throttle mechanism 18, and the entrance of the second check valve 172 is communicated with outdoor heat exchanger 16.The entrance of the 3rd check valve 173 is communicated with second throttle body 15, and the outlet of the 3rd check valve 173 is communicated with outdoor heat exchanger 16.The entrance of the 4th check valve 174 is communicated with second throttle body 15, and the outlet of the 4th check valve 174 is communicated with four-way change-over valve 11.
Adopt the control valve group of said structure, structure is simple, be convenient to connect, and control effects is reliable.
Further, in the present embodiment, be also provided with the 3rd throttle mechanism 18 between four-way change-over valve 11 and radiation heat exchange plate 12, under refrigerating state, the refrigerant in refrigerant pipeline flows into radiation heat exchange plate 12 through the 3rd throttle mechanism 18.
Specifically, the outlet of compressor 10 is communicated with four-way change-over valve 11, four-way change-over valve 11 has four interfaces, and except the interface of the outlet with compressor 10, other three interfaces are communicated with the entrance of follow-up check valve assembly 17, compressor 10, outdoor heat exchanger 16 respectively.Along the flow direction of refrigerant, radiation heat exchange plate 12 rear is communicated with first throttle mechanism 13, indoor heat exchanger 14, second throttle body 15, outdoor heat exchanger 16 successively.All connected by refrigerant pipeline fluid between two parts of above-mentioned connection.
3rd throttle mechanism 18 plays regulating action to the refrigerant entering radiation heat exchange plate 12.3rd throttle mechanism 18 can be such as the throttle parts such as electric expansion valve.
The throttle degree of first throttle mechanism 13, the 3rd throttle mechanism 18 (specifically all adopting electric expansion valve) is different, make to enter radiation heat exchange plate 12 different with the refrigerant temperature of indoor heat exchanger 14, though independent heat transfer temperature difference is different because of the difference of throttle degree, heat transfer temperature difference overall when identical chamber internal loading is constant.
The air-conditioner that technique scheme provides, radiation heat exchange plate 12 and indoor heat exchanger 14 are connected, radiation heat exchange plate 12 and indoor heat exchanger 14 shared indoor load.When air-conditioner is in refrigerating state, radiation heat exchange plate 12 and indoor heat exchanger 14 can heats jointly in absorption chamber, or by controlling first throttle mechanism 13, to make in radiation heat exchange plate 12 and indoor heat exchanger 14 some bears indoor load separately for the 3rd throttle mechanism 18.Air-conditioner be in heat state time, be also in like manner.When refrigerating state, 3rd throttle mechanism 18 can be passed through, make the temperature of radiation heat exchange plate 12 during cooling condition higher than indoor dew-point temperature, ensure that radiation heat exchange plate 12 surface does not condense, make the air-conditioner belonging to radiation heat exchange plate 12 can be applicable to the independent room of average family.Further, because radiation heat exchange plate 12 has calm sense, low noise, the advantage such as high-comfort, energy-conservation, improve the comfortableness that air-conditioner uses.
Further, first throttle mechanism 13, second throttle body 15, the 3rd throttle mechanism 18 are electric expansion valve.Electronic expansion valve controls is sensitive, and accuracy is high.
Refrigerant as referred to herein is gas-liquid two-phase state refrigerant.Be such as specifically: freon, ammonia or carbon dioxide.
For the ease of controlling the aperture of the 3rd throttle mechanism 18, air-conditioner also can comprise controller (scheming not shown) and sensor (scheming not shown).Controller is connected with the 3rd throttle mechanism 18 and sensor respectively, and controller is used for detecting according to sensor the aperture that the dew-point temperature obtained controls the 3rd throttle mechanism 18.The aperture of the 3rd throttle mechanism 18 is large, then the Fluid Volume passed through in the unit interval is many; The aperture of the 3rd throttle mechanism 18 is little, then the Fluid Volume passed through in the unit interval is few.
Sensor mentioned above is specifically as follows Temperature Humidity Sensor.
The air-conditioner that technique scheme provides, by four-way change-over valve 11, check valve assembly 17, electric expansion valve with the use of, realize refrigerant to introduce air-conditioning system, and larger liquid stream and aerodynamic noise can not be produced; By adjusting the aperture of the 3rd throttle mechanism 18 (being specially electric expansion valve), realizing cooling condition radiation heat exchange plate 12 surface and not condensing; By radiation heat exchange plate 12 and indoor heat exchanger 14 shared indoor load, realize indoor temperature and reach design temperature fast, and calm sense, the effect such as energy-conservation.
Further, by being connected in series of radiation heat exchange plate 12 and indoor heat exchanger 14, radiation heat exchange plate 12 and indoor heat exchanger 14 shared indoor load, adjust the aperture of the 3rd throttle mechanism 18, realize the temperature of radiation heat exchange plate 12 during cooling condition higher than indoor dew-point temperature, ensure that radiation heat exchange plate 12 surface does not condense.By four-way change-over valve 11 and check valve assembly 17 with the use of, when realizing cooling/heat, refrigerant all first flows into radiation heat exchange plate 12 and then flows into indoor heat exchanger 14, ensures heat transfer temperature difference, promotes the heat exchange efficiency of radiation heat exchange plate 12.In radiation heat exchange plate 12, refrigerant is gas-liquid two-phase state, without larger phase-state change, can not produce larger liquid stream and aerodynamic noise while ensureing each homogeneous temperature of radiation heat exchange plate 12.
Below in conjunction with accompanying drawing, the air-conditioner that technique scheme provides is described in further detail.
This air-conditioner trunk design is applied to the domestic air conditioning equipment with calm sense, low noise, the advantage such as high-comfort, energy-conservation.
By radiation heat exchange plate 12 and indoor heat exchanger 14 with the use of, enable indoor temperature reach user's design temperature quickly, there is larger temperature rise/reduction of speed rate.Radiation heat exchange plate 12 and indoor heat exchanger 14 are set to be connected in series, and before radiation heat exchange plate 12 and heat exchanger, all electric expansion valve are set, to control the throttle degree of each branch road and flow better.As shown in Figure 1, ensure that cooling/heating circulation makes refrigerant be introduced into radiation heat exchange plate 12 and enters indoor heat exchanger 14 again by check valve assembly 17.
During kind of refrigeration cycle, pressure-enthalpy chart is as shown in Figure 2, and in fig. 2, the implication of each gauge point is as follows:
1-compressor air suction state point;
2-compressor air-discharging state point;
3-outdoor heat exchanger refrigerant inlet condition point;
4-outdoor heat exchanger refrigerant exit state point;
5-radiation heat exchange plate refrigerant inlet condition point;
6-radiation heat exchange plate refrigerant exit state point;
7-indoor heat exchanger refrigerant inlet condition point;
8-indoor heat exchanger refrigerant exit state point.
The HTHP refrigerant that a 4 points-5 expression compressor 10 is discharged enters radiation heat exchange plate 12 through the 3rd throttle mechanism 18 (specifically adopting electric expansion valve) first time throttling, throttle degree is regulated, to ensure to enter refrigerant temperature in radiation heat exchange plate 12 higher than air dew point temperature by the aperture adjusting electric expansion valve.5 points-6 represent the evaporation and heat-exchange process of refrigerant in radiation heat exchange plate 12.6 points-7 represent that the refrigerant flowed out from radiation heat exchange plate 12 enters indoor heat exchanger 14 through first throttle mechanism 13 (specifically adopting electric expansion valve) second time throttling.7 points-8 represent the evaporation and heat-exchange process of refrigerant at indoor heat exchanger 14.Ensureing that by regulating the throttle degree of twice throttling radiation heat exchange plate 12 surface temperature is higher than air dew point temperature, ensureing that the suction superheat of compressor 10 is avoided liquid hammer occurs simultaneously.
The cold that radiation heat exchange plate 12 provides is
indoor heat exchanger 14 provides cold to be
indoor load is by radiation heat exchange plate 12 and heat exchanger shared.After indoor temperature reaches user's comfort temperature, by regulating the aperture of first throttle mechanism 13, second throttle body 15, the 3rd throttle mechanism 18, indoor load is born by radiation heat exchange plate 12 substantially, inner blower turns down or closes, and realizes the Consumer's Experience of high degree of comfort, calm sense, low noise.
for system refrigerant mass flow, h
5be the enthalpy of 5 corresponding refrigerants, h
6be the enthalpy of 6 corresponding refrigerants, h
7be the enthalpy of 7 corresponding refrigerants, h
8it is the enthalpy of 8 corresponding refrigerants.
The electric expansion valve that first throttle mechanism 13, second throttle body 15, the 3rd throttle mechanism 18 adopt is and realizes when standard-sized sheet the structure that full conducting can not produce throttling.
Heat circulation time, four-way change-over valve 11 and check valve assembly 17 with the use of, make refrigerant first enter radiation heat exchange plate 12, refrigerant keeps gas-liquid two-phase state substantially when radiation heat exchange plate 12 internal flow, the change of radiation heat exchange plate 12 out temperature is less, radiation heat exchange plate 12 temperature distribution uniform; Refrigerant from radiation heat exchange plate 12 flow out laggard enter indoor heat exchanger 14 carry out condensing heat-exchange further, follow-up flow process and routine heat and circulate identical, repeat no more herein.
As shown in the above, the determination that technique scheme avoids on the one hand that conventional domestic air-conditioning blowing feeling is comparatively strong, noise is comparatively large, comfortableness is poor when heating, avoid on the other hand that conventional radiation air-conditioning system temperature rise/reduction of speed rate is less, the determination of the radiation heat exchange plate 12 surface problems such as easily condensation, unit heat exchange amount be less, realize that domestic air conditioning is calm, low noise, the effect such as high-comfort, energy-conservation.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only for ease of describing the utility model and simplified characterization, instead of instruction or infer the device of indication or element must have specific orientation, for specific azimuth configuration and operation, thus the restriction to the utility model protection content can not be interpreted as.
If employ the word such as " first ", " second " herein to limit parts, those skilled in the art should know: the use of " first ", " second " is only used to be convenient to describe the utility model and simplified characterization, as do not stated in addition, the implication that above-mentioned word is not special.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the field have been to be understood that: still can modify to detailed description of the invention of the present utility model or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope of the utility model request protection.
Claims (9)
1. an air-conditioner, it is characterized in that, comprise compressor (10), four-way change-over valve (11), radiation heat exchange plate (12), first throttle mechanism (13), indoor heat exchanger (14), second throttle body (15), outdoor heat exchanger (16) and above-mentioned each parts are linked to be the refrigerant pipeline in loop;
Wherein, described air-conditioner also comprises control valve group; Described control valve group is for controlling the flow direction of refrigerant, and make in refrigeration with under heating state, the refrigerant in described refrigerant pipeline all first flows into described radiation heat exchange plate (12), then flows into described indoor heat exchanger (14).
2. air-conditioner according to claim 1, is characterized in that, described control valve group is check valve assembly (17);
Described check valve assembly (17) be arranged on described four-way change-over valve (11), described radiation heat exchange plate (12), between described outdoor heat exchanger (16) and described second throttle body (15).
3. air-conditioner according to claim 2, it is characterized in that, described check valve assembly (17) comprises the first check valve (171), the second check valve (172), the 3rd check valve (173) and the 4th check valve (174);
The entrance of described first check valve (171) is communicated with described four-way change-over valve (11), and the outlet of described first check valve (171) is communicated with described radiation heat exchange plate (12);
The outlet of described second check valve (172) is communicated with described radiation heat exchange plate (12), and the entrance of described second check valve (172) is communicated with described outdoor heat exchanger (16);
The entrance of described 3rd check valve (173) is communicated with described second throttle body (15), and the outlet of described 3rd check valve (173) is communicated with described outdoor heat exchanger (16);
The entrance of described 4th check valve (174) is communicated with described second throttle body (15), and the outlet of described 4th check valve (174) is communicated with described four-way change-over valve (11).
4. according to the arbitrary described air-conditioner of claim 1-3, it is characterized in that, the 3rd throttle mechanism (18) is also provided with between described four-way change-over valve (11) and described radiation heat exchange plate (12), under refrigerating state, the refrigerant in described refrigerant pipeline flows into described radiation heat exchange plate (12) through described 3rd throttle mechanism (18).
5. air-conditioner according to claim 4, is characterized in that, also comprises controller and sensor;
Described controller is connected with described 3rd throttle mechanism (18) and described sensor respectively, and described controller is used for detecting according to described sensor the aperture that the dew-point temperature obtained controls described 3rd throttle mechanism (18).
6. air-conditioner according to claim 5, is characterized in that, described sensor is Temperature Humidity Sensor.
7. air-conditioner according to claim 4, is characterized in that, described first throttle mechanism (13), described second throttle body (15), described 3rd throttle mechanism (18) are electric expansion valve.
8., according to the arbitrary described air-conditioner of claim 1-3, it is characterized in that, described refrigerant is gas-liquid two-phase state refrigerant.
9. air-conditioner according to claim 8, is characterized in that, described refrigerant is freon, ammonia or carbon dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488787.0U CN204787396U (en) | 2015-07-07 | 2015-07-07 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520488787.0U CN204787396U (en) | 2015-07-07 | 2015-07-07 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204787396U true CN204787396U (en) | 2015-11-18 |
Family
ID=54527426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520488787.0U Expired - Fee Related CN204787396U (en) | 2015-07-07 | 2015-07-07 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204787396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949377A (en) * | 2015-07-07 | 2015-09-30 | 珠海格力电器股份有限公司 | Air conditioner |
| CN106352524A (en) * | 2016-09-27 | 2017-01-25 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner and air conditioner |
-
2015
- 2015-07-07 CN CN201520488787.0U patent/CN204787396U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949377A (en) * | 2015-07-07 | 2015-09-30 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104949377B (en) * | 2015-07-07 | 2018-04-27 | 珠海格力电器股份有限公司 | Air conditioner |
| CN106352524A (en) * | 2016-09-27 | 2017-01-25 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner and air conditioner |
| CN106352524B (en) * | 2016-09-27 | 2022-03-11 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210707 |