CN1142391C - Indoor machine of split air conditioner - Google Patents
Indoor machine of split air conditioner Download PDFInfo
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- CN1142391C CN1142391C CNB011008903A CN01100890A CN1142391C CN 1142391 C CN1142391 C CN 1142391C CN B011008903 A CNB011008903 A CN B011008903A CN 01100890 A CN01100890 A CN 01100890A CN 1142391 C CN1142391 C CN 1142391C
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- air conditioner
- split
- indoor machine
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- 238000000429 assembly Methods 0.000 claims description 58
- 230000000712 assembly Effects 0.000 claims description 58
- 239000003507 refrigerant Substances 0.000 claims description 27
- 238000012546 transfer Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 3
- 239000003570 air Substances 0.000 description 54
- 238000010586 diagram Methods 0.000 description 6
- 239000012080 ambient air Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003416 augmentation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention provides a split type air conditioner indoor unit, which comprises a shell, an evaporator assembly, a fan blade assembly, a motor and a panel, and is characterized in that: the fan blade component adopts an axial flow type fan blade component; the fan blade assembly is arranged between the evaporator assembly and the air outlet on the panel, and the air inlet is arranged on the shell outside the evaporator. The indoor machine of the split air conditioner of the invention adopts the axial flow type fan blade component, and the shape and the arrangement of the evaporator component are reasonable, the air can uniformly and effectively flow through the evaporator component, and the heat exchange efficiency of the evaporator is greatly improved.
Description
Technical field
The present invention relates to a kind of split-type air conditioner air conditioner indoor machine.
Background technology
The split-type air conditioner air conditioner indoor machine generally includes housing, evaporator assemblies and blower fan (fan blade assembly and motor) etc.In process of refrigerastion, from the refrigerant liquid of off-premises station, in the refrigerant pipe of inflow evaporator assembly, carry out heat exchange by evaporator assemblies and ambient air and become low-temp low-pressure gas, flow to again in the compressor of off-premises station.Carry out in the process of heat exchange at evaporimeter and surrounding air, the refrigerant in the evaporimeter absorbs the heat in the surrounding air, and ambient air temperature is reduced.In order to improve the heat exchange efficiency of air-conditioner, should make the air evaporimeter of evenly flowing through effectively as far as possible.Experiment shows, on the evaporator assemblies air velocity whether evenly with the type of selected fan blade assembly, and the relative position between fan blade assembly and the evaporimeter is closely related.In the prior art, what adopt usually is tubular fan blade assembly, and needs a volute is installed, and this volute extends to outlet from the fan blade assembly, is used for forming the discharge-channel of air.Under the situation that intake, heat exchange area and windage equate, since tubular fan blade assembly can make through the circulation of the air of evaporimeter to, the electric energy that adopts tubular fan blade assembly to be consumed is Duoed more than 20% at least than the electric energy of the required consumption of employing shaft flow blade assembly.In the indoor set of prior art, evaporator assemblies adopts the design of plane device of shifting block type or multistage bendable usually, and evaporator assemblies is arranged between the air outlet on fan blade assembly and the housing.The air that air inlet from housing enters under the effect of fan blade assembly, is blown out by air outlet through evaporimeter.Show according to the air-out wind speed that measures from the evaporimeter outside, adopt the shape of prior art and the evaporimeter of layout, the wind speed that measures at the evaporimeter middle part is bigger, and air-out wind speed in end reduces.Because its air-out wind speed profile is inhomogeneous, the heat exchange efficiency of evaporimeter is difficult to be further improved.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, by choose reasonable to the fan blade component type, to the improvement and the reasonable Arrangement of evaporator assemblies shape, thus the split-type air conditioner air conditioner indoor machine that provides a kind of heat exchange efficiency to improve.
The objective of the invention is to realize in the following manner: a kind of split-type air conditioner air conditioner indoor machine comprises housing, evaporator assemblies, fan blade assembly, motor and panel; Described fan blade assembly is to adopt the shaft flow blade assembly; Described fan blade assembly is arranged between the air outlet on evaporator assemblies and the panel, air inlet is arranged on the housing in the evaporimeter outside, it is characterized in that: described evaporator assemblies is the cylinder shape of opening, to cross fan blade assembly barycenter and to be datum level perpendicular to the plane of fan blade assembly rotating shaft, the kernel of section line of described evaporator assemblies is positioned at a cylinder scope, described cylinder is positioned at datum level one side and its bus is parallel to datum level, and described cylinder is intersected by datum level, first face of cylinder and second face of cylinder and forms; On the horizontal cross-section of crossing the rotating shaft of fan blade assembly, a transversal Duan Weiyi semi-circular line on first face of cylinder, the center of circle of described semi-circular line is the barycenter of described fan blade assembly, the diameter of described semi-circular line is 1.4D (D is the diameter of described fan blade assembly), the transversal Duan Weiyi section circular arc line on second face of cylinder, the center of circle of described circular arc line is positioned in the fan blade assembly rotating shaft of opposite side of described datum level and apart from barycenter 0.3D, the diameter of described circular arc line is 1.4D.
Implement split-type air conditioner air conditioner indoor machine of the present invention, owing to adopt the shaft flow blade assembly, and evaporator assemblies shape and connection and reasonable arrangement, air can evenly flow through evaporator assemblies effectively, and the evaporimeter heat exchange efficiency improves greatly.
Description of drawings
Below in conjunction with drawings and Examples the present invention is done further detailed description.
Fig. 1 is the relative position schematic diagram of evaporator assemblies and fan blade assembly in the split-type air conditioner air conditioner indoor machine of the present invention;
Fig. 2 is the measuring wind speed schematic diagram to the arc evaporator assembly outside;
Fig. 3 is the structural representation of the embodiment one of split-type air conditioner air conditioner indoor machine shown in Figure 1;
Fig. 4 is the user mode schematic diagram of split-type air conditioner air conditioner indoor machine shown in Figure 2;
Fig. 5 (a) is the structural representation of the embodiment two of split-type air conditioner air conditioner indoor machine shown in Figure 1;
Fig. 5 (b) is that the A2 of the split-type air conditioner air conditioner indoor machine shown in Fig. 5 (a) is to schematic diagram;
Fig. 6 (a) is the structural representation of the embodiment three of split-type air conditioner air conditioner indoor machine shown in Figure 1;
Fig. 6 (b) is that the A3 of the split-type air conditioner air conditioner indoor machine shown in Fig. 6 (a) is to schematic diagram.
The specific embodiment
As shown in Figure 1, split-type air conditioner air conditioner indoor machine of the present invention comprises housing, evaporator assemblies, fan blade assembly, motor and panel.In order to obtain higher heat exchange efficiency, the fan blade assembly adopts the shaft flow blade assembly, is provided with baffle liner in fan blade assembly outer ring, and the revolution axle center of fan blade assembly is coaxial with machine shaft, and described shaft flow blade assembly is arranged between evaporator assemblies and the air outlet.
Evaporator assemblies is the cylinder shape of opening.Fig. 2 is that in measurement, rotating speed of motor is 900rpm to the measuring wind speed schematic diagram in the arc evaporator assembly outside.When the cross section of crossing the rotating shaft of fan blade assembly of evaporator assemblies was circular-arc, along the length of evaporimeter, the V value difference was not less everywhere, maximum 2.05m/s, and minimum of a value is 1.71m/s, wind speed profile is even.Can be drawn by experiment, for the shaft flow blade assembly, on the horizontal cross-section of crossing the rotating shaft of fan blade assembly, the wind field isophote is approximately a series of concentric circular arc lines, and its center of circle is the barycenter of fan blade assembly.Therefore,, make the air evaporimeter of flowing through uniformly and effectively, the evaporimeter each point is positioned near the wind field isophote in order to improve heat exchange efficiency.
The present invention is by the following technical solutions: to cross fan blade assembly barycenter and to be datum level perpendicular to the plane of fan blade assembly rotating shaft, make the kernel of section line of described evaporator assemblies be positioned at a cylinder scope, described cylinder is positioned at datum level one side and its bus is parallel to datum level, described cylinder is by datum level, first face of cylinder and second face of cylinder are intersected and are formed, on the horizontal cross-section of crossing the rotating shaft of fan blade assembly, a transversal Duan Weiyi semi-circular line on first face of cylinder, the center of circle of described semi-circular line is the barycenter of described fan blade assembly, the diameter of described semi-circular line is 1.4D (D is the diameter of described fan blade assembly), the transversal Duan Weiyi section circular arc line on second face of cylinder, the center of circle of described circular arc line is positioned in the fan blade assembly rotating shaft of opposite side of described datum level and apart from barycenter 0.3D, the diameter of described circular arc line is 1.4D.
Experimental result shows that in the time of in above-mentioned cylinder scope, the wind field intensity of each point is 1.7-2.1m/s, and therefore, when the center line of evaporator assemblies was positioned at described cylinder scope, the wind speed of each point was roughly even on the evaporimeter.For the needs that turn round, the minimum range between the blade of the exterior contour of evaporator assemblies and described fan blade assembly must be greater than 10mm.
The cross sectional shape of described evaporator assemblies is the curve ring-type, and the center line of described curve ring is continuously smooth curve, and the radius of curvature center of this curve is in the same side of this curve.
The distance at the center line two ends of described evaporator assemblies greater than and the distance of straight line between the intersection point on this center line of straight line parallel by described center line two ends.
Described curve can be circular curve.
Described curve can be conic section.
Described curve can be the trigonometric function curve, as the SIN function curve, and cosine function curve, tan curve or cotangent function curve.
Described curve can comprise some different curves.
The end of the evaporator assemblies of the described cylinder shape that is opening can have ennation, and the kernel of section line of described ennation is the extended straightway of end points from the center line of described evaporator assemblies, and the length of described center line is greater than this length of straigh line.
Two ends of the evaporator assemblies of the described cylinder shape that is opening all can have ennation, the kernel of section line of described ennation is from extended two straightways of two end points of the center line of described evaporator assemblies, and the length of described center line is greater than the length sum of these two straightways.
The multistage broken line of the kernel of section line of described evaporator assemblies for being connected successively.
Every segment length of described multistage broken line equates, the distance at the two ends of described center line greater than and the distance of straight line between the intersection point on this center line of straight line parallel by these center line two ends.
Because the relative position relation of fan blade assembly and baffle liner also can influence the heat exchange efficiency of evaporator assemblies, the gap between fan blade assembly and the baffle liner should be between 8-15mm.
As shown in Figure 3, in embodiments of the invention one, two ends that evaporator assemblies is the cylindrical shape of opening all have ennation, and its kernel of section line comprises that with fan blade assembly axle center be the circular arc line of symmetry axis, and from the extended straightway in described circular arc line two ends.In the present embodiment, the center of circle of described circular arc line is the barycenter P1 of fan blade assembly, and radius R is 210mm, and central angle alpha is 141 °, is 25mm from the extended length of straigh line in described circular arc line two ends.The diameter of fan blade assembly is 360mm, and thickness is 72mm, and the diameter of baffle liner is 380mm.
Described evaporator assemblies 2 can adopt the scheme of prior art, and the refrigerant pipe of being made by round metal tube is installed fin on it and constituted.Described fin is provided with along the radius of curvature direction of described evaporimeter center line basically.The extended line of described fin meets at a bit basically.
By under GB/T 7725-1996 standard condition (be 27 ℃ of refrigerating operaton indoor air dry-bulb temperatures, 19 ℃ of wet-bulb temperature, 35 ℃ of outdoor air dry-bulb temperatures, 24 ℃ of wet-bulb temperature; 20 ℃ of heating operation indoor air dry-bulb temperatures, 15 ℃ of wet-bulb temperature, 7 ℃ of outdoor air dry-bulb temperatures, 6 ℃ of wet-bulb temperature) test, adopt the air-conditioner of indoor set of the present invention, the complete machine refrigerating capacity can reach 3200w.
In the present embodiment, described shaft flow blade assembly 3 is arranged between evaporator assemblies 2 and the air outlet.Corresponding with axial-flow leaf assembly 3, air outlet is arranged on panel 4 middle parts.The cross sectional shape that is parallel to the rotating shaft of fan blade assembly of panel 4 is linear pattern, great circle camber line or other curve shapes.Air inlet is arranged on the housing 1 of rear side, is compact arranged lattice-shaped, and the outside of whole evaporator assemblies has been surrounded in its distribution, and than the single face of prior art and double-faced ventilated, intake of the present invention increases greatly.The cylindrical shape that the housing 1 of rear side is designed to adapt according to the cylindrical shape of evaporimeter, its shape can be that circular arc cylinder shape, hyperbolic cylinder are planar, trigonometric function cylinder shape, polygon cylinder shape etc.In the present embodiment, back side body be shaped as circular arc cylinder shape, make whole indoor machine structure compactness, volume further reduces, material consumption reduces.Implement split-type air conditioner air conditioner indoor machine of the present invention, compare for the 2500w air conditioner room unit with refrigerating capacity, volume can reduce 25%.Because the shaped design of the indoor set housing rear side of present embodiment becomes the circular arc cylindrical shape, especially is fit to be installed in the corner in room, land put, wall built-up is installed and furred ceiling install all can, the space that indoor set is occupied further reduces.As shown in Figure 4, during installation, whole indoor set can be adjusted in the ω angle, makes the user regulate blowing direction as required, makes room temperature even, and refrigeration rapidly.
Shown in Fig. 5 (a) and Fig. 5 (b), in embodiments of the invention two, the kernel of section line of evaporimeter is for being the circular arc line of symmetry axis with the rotating shaft of fan blade assembly.
In the present embodiment, evaporator assemblies is to be made of the refrigerant pipe that transversely arranged three-dimensional inside and outside rib intensify heat transfer pipe is made.So-called three-dimensional inside and outside rib intensify heat transfer pipe is produced by Zhuhai Gree thermal technology Science and Technology Ltd., comprises three-dimensional outer ribbed pipe, three-dimensional internal-rib pipe or has internal-rib concurrently and the three-dimensional inside and outside ribbed pipe of external fin, and tubular can be pipe or flat tube.Design feature and preparation method about the inside and outside rib intensify heat transfer pipe of this three-dimensional, can be called the Chinese patent ZL88102575.5 of " three-dimensional internal-rib pipe and processing technology thereof " and the Chinese patent ZL98228594.9 that name is called " three-dimensional external fin augmentation of heat transfer flat tube " by reference name, not elaborate at this.Because this three-dimensional external fin intensify heat transfer pipe has the heat exchange efficiency of enhancing, evaporimeter no longer needs to use fin, and volume reduces greatly, and the cost of raw material greatly reduces.When ribbed pipe and three-dimensional inside and outside ribbed pipe bend evaporimeter outside using three-dimensional, should make close proximity between the adjacent refrigerant pipe, promptly, essentially no space between the external fin of adjacent refrigerant pipe, thereby make the air of the evaporimeter of flowing through all participate in heat exchange, because three-dimensional internal-rib pipe and three-dimensional inside and outside ribbed pipe is internally-damped bigger, it walks pipe should adopt mode in parallel, promptly, the homonymy end of some horizontal refrigerant pipes is divided into one or more groups, be connected with siphunculus on the same group, refrigerant enters from a side, is flowed out by opposite side.
From the refrigerant liquid of off-premises station, in the refrigerant pipe by a side inflow evaporator assemblies, the opposite side by the refrigerant pipe flows out again, carries out heat exchange by evaporator assemblies and ambient air and becomes low-temp low-pressure gas, flows in the compressor of off-premises station again.
Shown in Fig. 6 (a) and Fig. 6 (b), in embodiments of the invention three, the kernel of section line of evaporimeter is for being the circular arc line of symmetry axis with the rotating shaft of fan blade assembly.
In the present embodiment, the refrigerant pipe is to adopt three-dimensional inside and outside rib intensify heat transfer pipe to make.Its refrigerant pipe is vertical arrangement, and is same, and the evaporimeter for ribbed pipe inside and outside outer ribbed pipe of three-dimensional and the three-dimensional is made should make close proximity between the adjacent refrigerant pipe.For the evaporimeter that ribbed pipe inside and outside three-dimensional internal-rib pipe and the three-dimensional is made, it walks pipe should adopt mode in parallel.
From the refrigerant liquid of off-premises station, in the refrigerant pipe by a side inflow evaporator assemblies, the opposite side by the refrigerant pipe flows out again, carries out heat exchange by evaporator assemblies and ambient air and becomes low-temp low-pressure gas, flows in the compressor of off-premises station again.
Claims (27)
1. a split-type air conditioner air conditioner indoor machine comprises housing, evaporator assemblies, fan blade assembly, motor and panel; Described fan blade assembly is to adopt the shaft flow blade assembly; Described fan blade assembly is arranged between the air outlet on evaporator assemblies and the panel, air inlet is arranged on the housing in the evaporimeter outside, it is characterized in that: described evaporator assemblies is the cylinder shape of opening, to cross fan blade assembly barycenter and to be datum level perpendicular to the plane of fan blade assembly rotating shaft, the kernel of section line of described evaporator assemblies is positioned at a cylinder scope, described cylinder is positioned at datum level one side and its bus is parallel to datum level, and described cylinder is intersected by datum level, first face of cylinder and second face of cylinder and forms; On the horizontal cross-section of crossing the rotating shaft of fan blade assembly, a transversal Duan Weiyi semi-circular line on first face of cylinder, the center of circle of described semi-circular line is the barycenter of described fan blade assembly, the diameter of described semi-circular line is 1.4D (D is the diameter of described fan blade assembly), the transversal Duan Weiyi section circular arc line on second face of cylinder, the center of circle of described circular arc line is positioned in the fan blade assembly rotating shaft of opposite side of described datum level and apart from barycenter 0.3D, the diameter of described circular arc line is 1.4D.
2. split-type air conditioner air conditioner indoor machine according to claim 1, it is characterized in that: the cross sectional shape of described evaporator assemblies is the curve ring-type, the center line of described curve ring is continuously smooth curve, and the radius of curvature center of this curve is in the same side of this curve.
3. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the distance at the center line two ends of described evaporator assemblies greater than and the distance of straight line between the intersection point on this center line of straight line parallel by described center line two ends.
4. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the center line of described evaporator assemblies can be circular curve.
5. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the center line of described evaporator assemblies can be conic section.
6. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the center line of described evaporator assemblies can be the trigonometric function curve, as the SIN function curve, and cosine function curve, tan curve or cotangent function curve.
7. split-type air conditioner air conditioner indoor machine according to claim 2, it is characterized in that: the end of the evaporator assemblies of the described cylinder shape that is opening can have ennation, the kernel of section line of described ennation is the extended straightway of end points from the center line of described evaporator assemblies, and the length of described center line is greater than this length of straigh line.
8. split-type air conditioner air conditioner indoor machine according to claim 2, it is characterized in that: two ends of the evaporator assemblies of the described cylinder shape that is opening all can have ennation, the kernel of section line of described ennation is from extended two straightways of two end points of the center line of described evaporator assemblies, and the length of described center line is greater than the length sum of these two straightways.
9. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the multistage broken line of the center line of described evaporator assemblies for being connected successively.
10. split-type air conditioner air conditioner indoor machine according to claim 9, it is characterized in that: every segment length of described multistage broken line equates, the distance at the two ends of described center line greater than and the distance of straight line between the intersection point on this center line of straight line parallel by these center line two ends.
11. split-type air conditioner air conditioner indoor machine according to claim 2, it is characterized in that: the refrigerant pipe that described evaporator assemblies is made by round metal tube, fin is installed on it and is constituted, described fin is provided with along the radius of curvature direction of described evaporimeter center line basically.
12. split-type air conditioner air conditioner indoor machine according to claim 2 is characterized in that: the refrigerant pipe that described evaporator assemblies is made by round metal tube, fin is installed on it and is constituted, the extended line of described fin meets at a bit basically.
13. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the gap between described fan blade and its baffle liner is between 8-15mm.
14. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the refrigerant pipe that described evaporator assemblies is made by three-dimensional internal-rib intensify heat transfer pipe constitutes.
15. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the refrigerant pipe that described evaporator assemblies is made by three-dimensional external fin intensify heat transfer pipe constitutes.
16. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the refrigerant pipe that described evaporator assemblies is made by external fin intensify heat transfer pipe in three-dimensional constitutes.
17. split-type air conditioner air conditioner indoor machine according to claim 15 is characterized in that: in the described evaporimeter, close proximity between the adjacent refrigerant pipe.
18. split-type air conditioner air conditioner indoor machine according to claim 16 is characterized in that: in the described evaporimeter, close proximity between the adjacent refrigerant pipe.
19. split-type air conditioner air conditioner indoor machine according to claim 14 is characterized in that: the pipe of walking of described refrigerant pipe adopts mode in parallel.
20. split-type air conditioner air conditioner indoor machine according to claim 16 is characterized in that: the pipe of walking of described refrigerant pipe adopts mode in parallel.
21. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: described air outlet is arranged on the middle part of the panel of housing.
22. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the outside of whole evaporator assemblies has been surrounded in the described distribution that is arranged on the air inlet on the housing.
23. split-type air conditioner air conditioner indoor machine according to claim 21 is characterized in that: the outside of whole evaporator assemblies has been surrounded in the described distribution that is arranged on the air inlet on the housing.
24. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: the cylindrical shape that the rear side of described housing adapts for the cylindrical shape with evaporimeter.
25. split-type air conditioner air conditioner indoor machine according to claim 24 is characterized in that: the circular arc cylindrical shape that the rear side of described housing adapts for the cylindrical shape with evaporimeter.
26. split-type air conditioner air conditioner indoor machine according to claim 24 is characterized in that: the polygon cylindrical shape that the rear side of described housing adapts for the cylindrical shape with evaporimeter.
27. split-type air conditioner air conditioner indoor machine according to claim 1 and 2 is characterized in that: described panel is the orthodrome cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011008903A CN1142391C (en) | 2001-01-22 | 2001-01-22 | Indoor machine of split air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011008903A CN1142391C (en) | 2001-01-22 | 2001-01-22 | Indoor machine of split air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367347A CN1367347A (en) | 2002-09-04 |
| CN1142391C true CN1142391C (en) | 2004-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011008903A Expired - Lifetime CN1142391C (en) | 2001-01-22 | 2001-01-22 | Indoor machine of split air conditioner |
Country Status (1)
| Country | Link |
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| CN (1) | CN1142391C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223226B (en) * | 2015-11-19 | 2021-01-22 | 华北水利水电大学 | Concrete high temperature resistance and frost resistance testing device |
| CN107166700B (en) * | 2017-07-17 | 2024-01-12 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner and casing thereof |
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2001
- 2001-01-22 CN CNB011008903A patent/CN1142391C/en not_active Expired - Lifetime
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| Publication number | Publication date |
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| CN1367347A (en) | 2002-09-04 |
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Granted publication date: 20040317 |