CN202470237U - Ultrathin card type air conditioner - Google Patents
Ultrathin card type air conditioner Download PDFInfo
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- CN202470237U CN202470237U CN2012200601777U CN201220060177U CN202470237U CN 202470237 U CN202470237 U CN 202470237U CN 2012200601777 U CN2012200601777 U CN 2012200601777U CN 201220060177 U CN201220060177 U CN 201220060177U CN 202470237 U CN202470237 U CN 202470237U
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Abstract
The utility model provides an ultrathin card type air conditioner. An evaporator includes at least one refrigerant flow path unit A close to an air conditioner top plate, at least one refrigerant flow path unit B close to an air conditioner bottom plate, and fins; the refrigerant flow path unit A includes a refrigerant inlet, a plurality of refrigerant outlets and multiple rows of U-shaped tubes; the evaporator is inclined and arranged on the air conditioner bottom plate and on the air-out side of a fan; at least one split-flow elbow is arranged in the refrigerant flow path unit A and includes an inlet branch tube and a plurality of split-flow branch tubes; the plurality of split-flow branch tubes are communicated with partial U-shaped tubes in different rows; and the refrigerant is divided into a plurality of paths by the split-flow elbow, and each path flows out from the different refrigerant outlets and then is gathered. Through reasonably designing the placement manner of the evaporator, the distribution of the flow paths and the arrangement of the fins, the split-flow is even and the heat exchange efficiency is high on the premise of ensuring the whole machine heat exchange ability; and when the multiple flow paths are adopted, water in air is prevented from condensing after air enters the evaporator.
Description
Technical field
The utility model belongs to the air-conditioner technical field, is specifically related to the architecture advances of the cassette air-conditioner evaporator of ultra-thin type.
Background technology
Along with the progress of science and technology, the design of cassette air-conditioner develops towards direction that is more energy-conservation, thinner, that more become more meticulous, and ultra-thin type also will more and more become a kind of fashion trend.The realization of ultra-thin cassette air-conditioner mainly is through reducing the height of cassette air-conditioner; Promptly reduce the height of evaporator assemblies; And since evaporator assemblies normally install to be provided with perpendicular to indoor machine chassis; Reduce the height of evaporator assemblies, the consumption of fin and U-shaped pipe certainly will all can reduce to some extent, then can influence the whole exchange capability of heat of this type cassette air-conditioner to a great extent.
In addition, present ultra-thin cassette air-conditioner, evaporator assemblies generally comprises single row or multiple rows U-shaped tubular construction; Wherein every row's U-shaped pipe radical is generally more than 10; With being communicated with through 90 ° of flat return bends between the adjacent U-shaped pipe of row, comprise the refrigerant outlet of n refrigerant inlet and the corresponding same number that is provided with, after cold-producing medium flows into from refrigerant inlet; In order through getting into another row's U-shaped pipe behind same row's the U-shaped pipe; Flow out at last and gather, promptly its stream is that simple n road distributes, and realizes that refrigerant flow path n advances n and goes out.With cassette air-conditioner shown in Figure 1 is example; Use two row's U-shaped pipes, comprise two refrigerant inlets and two refrigerant outlets, the fin form all is a fissure type; Cold-producing medium advances from the centre; Each flows toward both sides to be divided into two-way through two refrigerant inlets, is respectively to converge in the centre after the n font detours again, and promptly cold-producing medium two advances scene 2.Existing cassette air-conditioner when low number, can also satisfy the requirement of high energy efficiency, but when heat increased, the flow process of cold-producing medium increased, and made cold-producing medium before outlet, just evaporate fully, made heat exchange efficiency reduce; When needs reach higher Energy Efficiency Ratio; Just need to adopt the way on multithread road to improve heat exchange efficiency, but too much to tend to shunting uneven along with stream, cause between adjacent two U-shaped pipes the temperature difference bigger; Formation cold wind hot blast crossed after air got into evaporimeter, and the condensation phenomenon just takes place airborne water.
Moreover, existing ultra-thin cassette air-conditioner, general whole employing fissure types of the fin of its evaporimeter or plain film formula; Windage is bigger, thereby makes exchange capability of heat descend, and heat exchange efficiency is lower; If will improve heat exchange efficiency, then can increase the consumption of fin and U-shaped pipe, cost strengthens.
The utility model content
Deficiency to prior art; The utility model provides a kind of ultra-thin cassette air-conditioner; On the basis that guarantees the complete machine exchange capability of heat, shunting is even and heat exchange efficiency is high, and airborne water the condensation phenomenon can not take place yet after air got into evaporimeter when adopting the multithread road.
Solve above-mentioned technical purpose for reaching; The utility model adopts following technical scheme to be achieved: a kind of ultra-thin cassette air-conditioner; Comprise evaporimeter and fan; Said evaporimeter comprises at least one refrigerant flow path unit A near cassette air-conditioner top board, at least one refrigerant flow path unit B and fin near the cassette bottom plate of air conditioner; Said refrigerant flow path unit A comprises a refrigerant inlet, a plurality of refrigerant outlet and arranges the U-shaped pipe more, and said evaporimeter is obliquely installed on the base plate of cassette air-conditioner, and said evaporimeter is positioned at the air side of said fan; At least be provided with a shunting elbow in the said refrigerant flow path unit A; Said shunting elbow comprises an entrance branch and a plurality of shunt pipe; A plurality of said shunt pipes are communicated with different rows' part U-shaped pipe respectively; Cold-producing medium flows into from said refrigerant inlet, and by said shunting elbow demultiplexing, each road is flowed out through different said refrigerant outlets respectively and gathered at last behind the part of upwards the flowing through U-shaped pipe.
When said refrigerant flow path unit A comprises a refrigerant inlet, two refrigerant outlets and two row's U-shaped pipes; Said refrigerant inlet is arranged on first row's U-shaped pipe; Said shunting elbow comprises an entrance branch and two shunt pipes; Said entrance branch is communicated with the U-shaped pipe outlet in first row's U-shaped pipe, and wherein a shunt pipe is communicated with the U-shaped tube inlet in second row's U-shaped pipe, and another shunt pipe is communicated with the U-shaped tube inlet in first row's U-shaped pipe; Cold-producing medium flows into from said refrigerant inlet; The said shunting elbow of entering is divided into two-way after upwards flowing through a U-shaped pipe; Wherein one the road flow through two U-shaped Guan Houcong wherein a refrigerant outlet flow out, another road another refrigerant outlet of a U-shaped Guan Houcong of flowing through flows out.
Two said refrigerant outlets are arranged on second row's U-shaped pipe.
When said refrigerant flow path unit A comprises a refrigerant inlet, two refrigerant outlets and three row's U-shaped pipes; Said shunting elbow comprises an entrance branch and two shunt pipes; Said entrance branch is communicated with the U-shaped pipe outlet in first row's U-shaped pipe; Wherein a shunt pipe is communicated with the U-shaped tube inlet in second row's U-shaped pipe, and another shunt pipe is communicated with the U-shaped tube inlet in the 3rd row's U-shaped pipe; Cold-producing medium flows into from said refrigerant inlet; Upwards flow through and get into said shunting elbow behind two U-shaped pipes of first row's U-shaped pipe and be divided into two-way; Wherein one the road flow through two U-shaped Guan Houcong wherein a refrigerant outlet flow out, another road another refrigerant outlet of two U-shaped Guan Houcong of flowing through flows out.
Wherein a refrigerant outlet is arranged on first row's U-shaped pipe, and another refrigerant outlet is arranged on the 3rd row's U-shaped pipe.
Said refrigerant flow path unit B comprises a refrigerant inlet B, a refrigerant outlet B and arranges the U-shaped pipe more that cold-producing medium flows into from said refrigerant inlet B, behind each row's that flows through in order the U-shaped pipe, gathers through said refrigerant outlet B outflow.
Along on the flow of refrigerant direction, said fin adopts plain film and fissure type fin combination arrangement mode, and plain film is positioned at windward side, and the fissure type fin is positioned at the air side.
Than existing ultra-thin cassette air-conditioner, the utlity model has following advantage and good effect: the modes of emplacement of evaporimeter, reasonably stream distribution, fin arrangement mode.
The placement of evaporimeter adopts tilting to place; Make itself and cassette air-conditioner horizonal base plate that certain included angle arranged; Can effectively reduce the vertical height of evaporimeter top, reduce the thickness of indoor set, on the basis that guarantees the complete machine exchange capability of heat, realize ultra-thinization design apart from base plate.
The stream of reasonable Arrangement U-shaped pipe; Make each Lu Junneng according to the wind direction force and velocity of a current, thereby effectively improve the heat exchange efficiency of cold-producing medium, prevent that the exit is because of the overheated generation that the condensation phenomenon occurs; Even when needs reach big refrigerating capacity and higher Energy Efficiency Ratio, also can accomplish specified requirement.
The fin arrangement mode adopts plain film and fissure type fin combination arrangement mode, through fin optimization, reduces fin and copper consumption, and windage reduces; Noise reduces, and avoids the generation of condensation phenomenon, through comparative analysis; With whole fins is that fissure type or plain film are compared, and heat exchange improves, and resistance reduces.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the evaporator refrigerant stream arrangement sketch map of prior art cassette air-conditioner;
Fig. 2 is the structural representation of the ultra-thin cassette air-conditioner of the utility model embodiment;
Fig. 3 is the structural representation of evaporimeter among the utility model embodiment one;
Fig. 4 is the structural representation of shunting elbow among the utility model embodiment one;
Fig. 5 is the structural representation that fin is arranged among the utility model embodiment one;
Fig. 6 is the structural representation of evaporimeter among the utility model embodiment two;
Fig. 7 is the structural representation of shunting elbow among the utility model embodiment two;
Fig. 8 is the structural representation that fin is arranged among the utility model embodiment two;
Wherein, 1, evaporimeter; 2, fan; 3, refrigerant flow path unit A; 4, refrigerant flow path unit B; 5, fin; 6, refrigerant inlet; 7, refrigerant outlet A
18, refrigerant outlet A
29, first row's U-shaped pipe; 10, second row's U-shaped pipe; 11, shunting elbow; 11-1, entrance branch; 11-2, shunt pipe; 12, refrigerant inlet B; 13, refrigerant outlet B; 14, the 3rd row's U-shaped pipe.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Extremely shown in Figure 5 with reference to Fig. 2; A kind of ultra-thin cassette air-conditioner of present embodiment comprises evaporimeter 1 and fan 2; Evaporimeter 1 comprises two refrigerant flow path unit A3 near cassette air-conditioner top board a, a refrigerant flow path unit B 4 and a fin 5 near cassette bottom plate of air conditioner b, and promptly cold-producing medium divides Unit three road to get into evaporimeter.
First refrigerant flow path unit A3 with near cassette air-conditioner top board a is an example, and fin 5 materials are aluminium foil, and the U-shaped pipe is copper pipe or the aluminum pipe of φ 4～6mm, and row's number of U-shaped pipe is two rows, comprises a refrigerant inlet A6, two refrigerant outlet A
17, A
28; Near fan 2 (promptly being positioned at windward side) is first row's U-shaped pipe 9; Away from fan 2 (promptly being positioned at the air side) be second row's U-shaped pipe 10, evaporimeter 1 is obliquely installed on cassette bottom plate of air conditioner a, is positioned at the air side of fan 2; Make each road cold-producing medium of evaporimeter 1 all can according to the wind direction force and velocity of a current, improve heat exchange efficiency.Be provided with a shunting elbow 11 in the refrigerant flow path unit A3, shunting elbow 11 comprises an entrance branch 11-1 and two shunt pipe 11-2, and two shunt pipe 11-2 are communicated with different rows' part U-shaped pipe respectively.Wherein, refrigerant inlet A6 is communicated with the import of first U-shaped pipe in first row's U-shaped pipe 9, two refrigerant outlet A
17, A
28 are communicated with the U-shaped pipe in second row's U-shaped pipe 10; Entrance branch 11-1 is communicated with the outlet of first U-shaped pipe in first row's U-shaped pipe 9; One shunt pipe 11-2 is communicated with the inlet of another adjacent with first U-shaped pipe in first row's U-shaped pipe 9 U-shaped pipe, and another shunt pipe 11-2 is communicated with the inlet of first U-shaped pipe in second row's U-shaped pipe 10.Shown in arrow among Fig. 2, cold-producing medium flows into from refrigerant inlet A6, gets into shunting elbow 11 after upwards flowing through a U-shaped pipe, and 11-2 is divided into two-way by its shunt pipe, and two U-shaped Guan Houcong refrigerant outlet A wherein flow through on the road direction
17 outflows gather, and a U-shaped Guan Houcong refrigerant outlet A flows through under another road direction
28 outflows gather.Among second refrigerant flow path unit A3, the cold-producing medium pipeline of flowing through is provided with above-mentioned first refrigerant flow path unit A 3.
Refrigerant flow path unit B 4 comprises a refrigerant inlet B12, refrigerant outlet B13 and two row's U-shaped pipes, and refrigerant inlet B12 is communicated with first row's U-shaped pipe, and refrigerant outlet B13 is communicated with second row's U-shaped pipe.Cold-producing medium upwards flows through behind the U-shaped pipe from refrigerant inlet B12 inflow in order, after one 90 ° flat return bends inflow second rows advanced a U-shaped pipe again, gathers with other channel unit through refrigerant outlet B13 outflow.
Arranging of fin 5 selected brand-new arrangement mode for use in the present embodiment; Along on the flow of refrigerant direction; Fin 5 adopts plain film and fissure type fin combination arrangement mode; Corresponding first arranges U-shaped pipe 9 and first row fin 5-1 (promptly being positioned at the fin of windward side) the employing plain film of setting, and corresponding second arranges U-shaped pipe 10 and second row fin 5-2 (promptly being positioned at the fin of leeward side) the employing fissure type fin of setting.So arrange, can effectively reduce windage, reduce noise, improve heat exchange efficiency.
Embodiment two
To shown in Figure 8, different with the foregoing description is with reference to Fig. 6, and row's number of U-shaped pipe is 3 rows in the present embodiment, and the layout of design U-shaped pipe and refrigerant flow path is as shown in Figure 3, and the structure of shunting elbow is as shown in Figure 4.First refrigerant flow path unit A3 with near cassette air-conditioner top board a is an example, comprises a refrigerant inlet A6, two refrigerant outlet A
17, A
28, and first row's U-shaped pipe 9, second is arranged U-shaped pipe 10 and the 3rd row's U-shaped pipe 14, the import of first U-shaped pipe in refrigerant inlet A6 connection first row's U-shaped pipe 9, refrigerant outlet A
17 are communicated with the U-shaped tube inlet in second row's U-shaped pipe 10, refrigerant outlet A
28 are communicated with the U-shaped tube inlet in the 3rd row's U-shaped pipe 14; Entrance branch 11-1 is communicated with the outlet of several second U-shaped pipe that make progress in first row's U-shaped pipe 9; One shunt pipe 11-2 is communicated with the inlet of first U-shaped pipe in second row's U-shaped pipe 10; Another shunt pipe 11-2 is communicated with the inlet of first U-shaped pipe in the 3rd row's U-shaped pipe 14, is communicated with by 90 ° of flat return bends between other adjacent U-shaped pipe.Shown in arrow among Fig. 4; Cold-producing medium flows into from refrigerant inlet A6; Get into shunting elbow 11 after upwards flowing through two U-shaped pipes in first row's U-shaped pipe 9; 11-2 is divided into two-way by its shunt pipe, and two-way is upwards flowed through a U-shaped pipe respectively after 90 ° of flat return bends intersect the U-shaped pipe of upwards flowing through respectively again after being communicated with, and last road is from refrigerant outlet A
17 outflows gather, and another road is from refrigerant outlet A
28 outflows gather.Among second refrigerant flow path unit A3, the cold-producing medium pipeline of flowing through is provided with above-mentioned first refrigerant flow path unit A3.
Refrigerant flow path unit B 4 comprises a refrigerant inlet B12, refrigerant outlet B13 and three row's U-shaped pipes, and refrigerant inlet B12 is communicated with first row's U-shaped pipe, and refrigerant outlet B13 is communicated with the 3rd row's U-shaped pipe.Cold-producing medium flows into from refrigerant inlet B12; Upwards flow in order through behind the U-shaped pipe; Flow into second row through one 90 ° flat return bends, flow downward, flow into the 3rd row more in order through behind the U-shaped pipe; Flow downward through behind the U-shaped pipe, flow out with other channel unit through refrigerant outlet B13 and gather.
In the present embodiment; Along on the flow of refrigerant direction; Corresponding first row's U-shaped pipe 9 and first row fin 5-1 (promptly being positioned at the fin of windward side) that is provided with adopts plain film, corresponding second row's U-shaped pipe 10, the 3rd row's U-shaped pipe 14 and the second row's fin 5-2, the 3rd row fin 5-3 (promptly being positioned at the fin of leeward side) that are provided with adopt the fissure type fin; Perhaps corresponding first row's U-shaped pipe 9, second row's U-shaped pipe 10 and the first row's fin 5-1, the second row's fin 5-2 that are provided with adopt plain film (promptly being positioned at the fin of windward side), corresponding the 3rd row's U-shaped pipe 14 and the 3rd row fin 5-3 (promptly being positioned at the fin of leeward side) that is provided with adopts the fissure type fin.So arrange, can effectively reduce windage, reduce noise, improve heat exchange efficiency.
What should explain at last is: above embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (7)
1. ultra-thin cassette air-conditioner; Comprise evaporimeter and fan; Said evaporimeter comprises at least one refrigerant flow path unit A near cassette air-conditioner top board, at least one refrigerant flow path unit B and fin near the cassette bottom plate of air conditioner; Said refrigerant flow path unit A comprises a refrigerant inlet, a plurality of refrigerant outlet and arranges the U-shaped pipe more, it is characterized in that: said evaporimeter is obliquely installed on the base plate of cassette air-conditioner, is positioned at the air side of said fan; At least be provided with a shunting elbow in the said refrigerant flow path unit A; Said shunting elbow comprises an entrance branch and a plurality of shunt pipe; A plurality of said shunt pipes are communicated with different rows' part U-shaped pipe respectively; Cold-producing medium flows into from said refrigerant inlet, and by said shunting elbow demultiplexing, each road is flowed out through different said refrigerant outlets respectively and gathered at last behind the part of upwards the flowing through U-shaped pipe.
2. ultra-thin cassette air-conditioner according to claim 1; It is characterized in that: when said refrigerant flow path unit A comprises a refrigerant inlet, two refrigerant outlets and two row's U-shaped pipes; Said refrigerant inlet is arranged on first row's U-shaped pipe; Said shunting elbow comprises an entrance branch and two shunt pipes; Said entrance branch is communicated with the U-shaped pipe outlet in first row's U-shaped pipe, and wherein a shunt pipe is communicated with the U-shaped tube inlet in second row's U-shaped pipe, and another shunt pipe is communicated with the U-shaped tube inlet in first row's U-shaped pipe; Cold-producing medium flows into from said refrigerant inlet; The said shunting elbow of entering is divided into two-way after upwards flowing through a U-shaped pipe; Wherein one the road flow through two U-shaped Guan Houcong wherein a refrigerant outlet flow out, another road another refrigerant outlet of a U-shaped Guan Houcong of flowing through flows out.
3. ultra-thin cassette air-conditioner according to claim 2 is characterized in that: two said refrigerant outlets are arranged on second row's U-shaped pipe.
4. ultra-thin cassette air-conditioner according to claim 1; It is characterized in that: when said refrigerant flow path unit A comprises a refrigerant inlet, two refrigerant outlets and three row's U-shaped pipes; Said shunting elbow comprises an entrance branch and two shunt pipes; Said entrance branch is communicated with the U-shaped pipe outlet in first row's U-shaped pipe, and wherein a shunt pipe is communicated with the U-shaped tube inlet in second row's U-shaped pipe, and another shunt pipe is communicated with the U-shaped tube inlet in the 3rd row's U-shaped pipe; Cold-producing medium flows into from said refrigerant inlet; Upwards flow through and get into said shunting elbow behind two U-shaped pipes of first row's U-shaped pipe and be divided into two-way; Wherein one the road flow through two U-shaped Guan Houcong wherein a refrigerant outlet flow out, another road another refrigerant outlet of two U-shaped Guan Houcong of flowing through flows out.
5. ultra-thin cassette air-conditioner according to claim 4 is characterized in that: wherein a refrigerant outlet is arranged on first row's U-shaped pipe, and another refrigerant outlet is arranged on the 3rd row's U-shaped pipe.
6. according to claim 3 or 5 described ultra-thin cassette air-conditioners; It is characterized in that: said refrigerant flow path unit B comprises a refrigerant inlet B, a refrigerant outlet B and arranges the U-shaped pipe more; Cold-producing medium flows into from said refrigerant inlet B; Flow through in order behind each U-shaped pipe of arranging, gather through said refrigerant outlet B outflow.
7. ultra-thin cassette air-conditioner according to claim 6 is characterized in that: along on the flow of refrigerant direction, said fin is plain film and fissure type fin assembled arrangement, and plain film is positioned at windward side, and the fissure type fin is positioned at the air side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601777U CN202470237U (en) | 2012-02-23 | 2012-02-23 | Ultrathin card type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200601777U CN202470237U (en) | 2012-02-23 | 2012-02-23 | Ultrathin card type air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202470237U true CN202470237U (en) | 2012-10-03 |
Family
ID=46918392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200601777U Expired - Lifetime CN202470237U (en) | 2012-02-23 | 2012-02-23 | Ultrathin card type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202470237U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989542A (en) * | 2017-05-17 | 2017-07-28 | 珠海格力电器股份有限公司 | evaporator and air conditioning equipment |
| CN110440079A (en) * | 2019-08-08 | 2019-11-12 | 广东美的暖通设备有限公司 | Connecting pipe component, heat exchanger, refrigeration system and air conditioner |
| CN110440062A (en) * | 2019-08-08 | 2019-11-12 | 广东美的暖通设备有限公司 | Connecting pipe component, heat exchanger, refrigeration system and air conditioner |
| WO2022237164A1 (en) * | 2021-05-08 | 2022-11-17 | 青岛海尔空调器有限总公司 | Split type air conditioner |
-
2012
- 2012-02-23 CN CN2012200601777U patent/CN202470237U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989542A (en) * | 2017-05-17 | 2017-07-28 | 珠海格力电器股份有限公司 | evaporator and air conditioning equipment |
| CN110440079A (en) * | 2019-08-08 | 2019-11-12 | 广东美的暖通设备有限公司 | Connecting pipe component, heat exchanger, refrigeration system and air conditioner |
| CN110440062A (en) * | 2019-08-08 | 2019-11-12 | 广东美的暖通设备有限公司 | Connecting pipe component, heat exchanger, refrigeration system and air conditioner |
| CN110440062B (en) * | 2019-08-08 | 2020-12-25 | 广东美的暖通设备有限公司 | Connecting pipe assembly, heat exchanger, refrigerating system and air conditioner |
| CN110440079B (en) * | 2019-08-08 | 2021-07-30 | 广东美的暖通设备有限公司 | Connecting pipe assembly, heat exchanger, refrigerating system and air conditioner |
| WO2022237164A1 (en) * | 2021-05-08 | 2022-11-17 | 青岛海尔空调器有限总公司 | Split type air conditioner |
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