CN108759041B - Volute structure and air conditioner with same - Google Patents
Volute structure and air conditioner with same Download PDFInfo
- Publication number
- CN108759041B CN108759041B CN201810891670.5A CN201810891670A CN108759041B CN 108759041 B CN108759041 B CN 108759041B CN 201810891670 A CN201810891670 A CN 201810891670A CN 108759041 B CN108759041 B CN 108759041B
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- channel
- air
- volute
- tongue
- volute tongue
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- 238000010992 reflux Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/12—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of sliding members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a volute structure and an air conditioner with the volute structure. The volute structure comprises a shell and a volute tongue, wherein the volute tongue is connected with the inner wall of the shell, part of the volute tongue and the shell enclose an air inlet channel, part of the volute tongue and the shell enclose an air outlet channel, a reflux channel is formed in the volute tongue, the first end of the reflux channel is communicated with the air outlet channel, and the second end of the reflux channel is communicated with the air inlet channel so as to guide part of air flow in the air outlet channel into the air inlet channel and perform heat exchange with the air flow in the air inlet channel. The air flow which is partially subjected to heat exchange in the air outlet channel is led to the air inlet channel again to perform heat exchange with the air inlet flow, so that the air inlet is pre-temperature-regulated, the air outlet temperature of the volute structure of the air conditioner is changed to be higher than the required temperature, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of air conditioner equipment, in particular to a volute structure and an air conditioner with the volute structure.
Background
In the prior art, the air conditioner sends heat or cold to the room for temperature adjustment through the blown air flow so as to achieve the purpose of adjusting the indoor temperature to the required temperature, however, the air outlet temperature of the existing air conditioner cannot be rapidly changed to the required temperature, especially when heating, the time for changing the blown temperature of the air conditioner to the required temperature is longer, so that the use experience of a user is reduced.
Disclosure of Invention
The invention mainly aims to provide a volute structure and an air conditioner with the volute structure, so that the problem that in the prior art, the time for changing the temperature blown out by the air conditioner to the required temperature is long is solved.
In order to achieve the above object, according to one aspect of the present invention, there is provided a volute structure including: a housing; the volute tongue is connected with the inner wall of the shell, part of the volute tongue and the shell enclose an air inlet channel, part of the volute tongue and the shell enclose an air outlet channel, a reflux channel is arranged on the volute tongue, a first end of the reflux channel is communicated with the air outlet channel, and a second end of the reflux channel is communicated with the air inlet channel so as to guide part of air flow in the air outlet channel into the air inlet channel and perform heat exchange with the air flow in the air inlet channel.
Further, the end part of the volute tongue is provided with a first diversion surface, a second diversion surface is formed on the surface, close to the air outlet channel, of the volute tongue, a volute tongue circular angle is formed between the first diversion surface and the second diversion surface, and the first end of the air outlet channel is arranged on the volute tongue circular angle.
Further, the length of the molded line of the volute tongue fillet is L, the first end of the molded line of the volute tongue fillet is connected with the second diversion surface, the second end of the molded line of the volute tongue fillet is connected with the first diversion surface, the first end of the air outlet channel is arranged on the molded line of the volute tongue fillet in a position range L1, wherein L1 is less than or equal to 2/3L, and L1 is the length from the first end to the second end of the molded line of the volute tongue fillet.
Further, the geometric center line of the return channel is an arc.
Further, the maximum width of the reflux channel is W which is less than or equal to 10mm.
Further, the plurality of return channels are arranged at intervals.
Further, the volute structure further includes: a slider slidably coupled to the surface of the volute tongue, the slider having a first position that closes the return channel and the slider having a second position that opens the return channel.
Further, the sliding block is slidably connected with the outer surface of the volute tongue fillet, and the surface of one side of the sliding block facing the volute tongue fillet is an arc surface.
According to another aspect of the present invention, there is provided an air conditioner including a scroll structure, the scroll structure being the scroll structure described above.
Further, the air conditioner further includes: the temperature sensing part is connected with the shell and is used for detecting the air outlet temperature; the control part is electrically connected with the temperature sensing part and can control the sliding block to be positioned at a first position for closing the backflow channel or a second position for opening the backflow channel.
Further, when the temperature sensing part detects that the air outlet temperature is stable, the control part controls the sliding block to be located at the first position, and when the temperature sensing part detects that the air outlet temperature is unstable, the control part controls the sliding block to be located at the second position.
Further, the air conditioner further includes: the through-flow fan blade is arranged in the shell, and the first flow guide surface of the volute tongue is opposite to the through-flow fan blade; the heat exchanger is arranged in the shell, and the air flow in the air inlet channel enters the air outlet channel after heat exchange with the heat exchanger.
By adopting the technical scheme of the invention, the volute tongue is provided with the reflux channel, the first end of the reflux channel is communicated with the air outlet channel, and the second end of the reflux channel is communicated with the air inlet channel, so that part of air flow in the air outlet channel is led into the air inlet channel and is subjected to heat exchange with the air flow in the air inlet channel. The air flow which is partially subjected to heat exchange in the air outlet channel is led to the air inlet channel again to perform heat exchange with the air inlet flow, so that the air inlet is pre-temperature-regulated, the air outlet temperature of the volute structure of the air conditioner is changed to be higher than the required temperature, and the user experience is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of a volute structure according to the invention;
FIG. 2 shows an enlarged schematic view of the structure of FIG. 1 at A;
fig. 3 shows a schematic view of the structure of the slide of the volute structure according to the invention in a second position;
fig. 4 shows a schematic view of the structure of the slide of the volute structure according to the invention in a first position.
Wherein the above figures include the following reference numerals:
10. a housing; 11. an air inlet channel; 12. an air outlet channel;
20. through-flow fan blades;
30. a heat exchanger;
40. a volute tongue; 41. volute tongue fillets; 42. a return passage; 43. a first guide surface; 44. a second guide surface;
50. a sliding block.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and the accompanying drawings are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.
As shown in connection with fig. 1 to 4, a volute structure is provided according to an embodiment of the present invention.
Specifically, as shown in fig. 1, the volute structure includes a casing 10 and a volute tongue 40, the volute tongue 40 is connected with an inner wall of the casing 10, a part of the volute tongue 40 and the casing 10 enclose an air inlet channel 11, a part of the volute tongue 40 and the casing 10 enclose an air outlet channel 12, a backflow channel 42 is formed on the volute tongue 40, a first end of the backflow channel 42 is communicated with the air outlet channel 12, and a second end of the backflow channel 42 is communicated with the air inlet channel 11, so that a part of air flow in the air outlet channel 12 is led into the air inlet channel 11 and exchanges heat with air flow in the air inlet channel 11.
In this embodiment, the volute tongue is provided with a backflow channel, a first end of the backflow channel is communicated with the air outlet channel, and a second end of the backflow channel is communicated with the air inlet channel, so that part of air flow in the air outlet channel is led into the air inlet channel and exchanges heat with air flow in the air inlet channel. The air flow which is partially subjected to heat exchange in the air outlet channel is led to the air inlet channel again to perform heat exchange with the air inlet flow, so that the air inlet is pre-temperature-regulated, the air outlet temperature of the volute structure of the air conditioner is changed to be higher than the required temperature, and the user experience is improved.
As shown in fig. 2, the end of the volute tongue 40 has a first guiding surface 43, a second guiding surface 44 is formed on the surface of the volute tongue 40 near the air outlet channel 12, a volute tongue rounded corner 41 is formed between the first guiding surface 43 and the second guiding surface 44, and the first end of the air outlet channel 12 is opened on the volute tongue rounded corner 41. By providing the first end of the air outlet channel 12 on the volute tongue fillet 41, the air outlet channel 12 mainly ventilates the return air on the first diversion surface 43 of the volute tongue 40 without affecting the main air of the air outlet channel, thereby avoiding the influence of the return channel 42 on the whole air delivery capacity.
In this embodiment, the length of the molded line of the volute tongue rounded 41 is L, the first end of the molded line of the volute tongue rounded 41 is connected to the second guiding surface 44, the second end of the molded line of the volute tongue rounded 41 is connected to the first guiding surface 43, and the position of the first end of the air outlet channel 12 on the molded line of the volute tongue rounded 41 is L1, where L1 is less than or equal to 2/3L, and L1 is the length from the first end to the second end of the molded line of the volute tongue rounded 41. The position of the return channel 42 is selected on the volute tongue fillet 41, preferably in the region of the volute tongue fillet 41 near the 2/3 section of the through-flow fan blade 20, wherein the flow velocity is closer to 90 degrees to the tongue surface, and the air flow is almost opposite to the tangential direction of the air inlet at the first end of the return channel 42, so that the inflow loss of the air flow at the air inlet at the first end of the return channel 42 is reduced, and the return flow along the return channel 42 is increased.
Further, the geometric centerline of return channel 42 is an arc. The arc-shaped backflow channel 42 can prevent backflow air flow from being offset with air inlet of the air inlet channel 7, so that air inlet quantity in the shell is prevented from being reduced.
In this embodiment, the maximum width of the return channel 42 is W.ltoreq.10 mm. The unstable internal through-flow area of the fan caused by the reduction of the internal pressure difference due to the overlarge air flow rate of the reflux channel 42 is avoided, and the air supply stability is improved.
In the present embodiment, the number of the return passages 42 is plural, and the plural return passages 42 are arranged at intervals. The backflow channels 42 can be uniformly distributed or unevenly distributed along the central axis direction of the through-flow fan blade 20, so that the diversion effect of the backflow channels 42 is improved, the outlet air temperature of the volute structure of the air conditioner is enabled to be changed to be faster than required temperature, and the user experience is improved.
Wherein the return channel 42 may be a trough structure, a hole structure, or an intermittent trough structure.
As shown in fig. 3 and 4, the volute structure further includes a slider 50, the slider 50 being slidably coupled to a surface of the volute tongue 40, the slider 50 having a first position that closes the return channel 42, and the slider 50 having a second position that opens the return channel 42. Of course, the slider may also be a valve body structure disposed in the backflow channel 42, so that the backflow channel 42 is opened when rapid temperature change is required, and the backflow channel 42 is closed when the indoor temperature is stable or tends to be stable, and the opening and closing of the slider are realized by using an arc-shaped slider on a volute tongue fillet.
In the present embodiment, the slider 50 is slidably connected to the outer surface of the volute tongue rounded 41, and the surface of the slider 50 facing the side of the volute tongue rounded 41 is an arc surface. The arrangement is such that the return channel 42 is open when a rapid temperature change is required and the return channel 42 is closed when the indoor temperature is stable or tends to be stable, and the opening and closing are achieved by using an arc-shaped slide block on the volute tongue fillet.
The scroll casing structure of the above embodiment may also be applied to the technical field of air conditioning apparatuses, that is, according to another aspect of the present invention, an air conditioner is provided, which includes the scroll casing structure of the above embodiment.
In this embodiment, the air conditioner further includes a temperature sensing portion connected to the housing 10, the temperature sensing portion being configured to detect an air outlet temperature, and a control portion electrically connected to the temperature sensing portion, the control portion being configured to control the slider 50 to be positioned at a first position where the return passage 42 is closed or a second position where the return passage 42 is opened. The arrangement is such that the return channel 42 is opened when the rapid temperature change is required, and the return channel 42 is closed when the indoor temperature is stable or tends to be stable, so that the air outlet temperature of the volute structure of the air conditioner is changed to be faster than the required temperature, and the user experience is improved.
Further, when the temperature sensing part detects that the air outlet temperature is stable, the control part controls the sliding block 50 to be located at the first position, and when the temperature sensing part detects that the air outlet temperature is unstable, the control part controls the sliding block 50 to be located at the second position. Wherein the temperature of the air outlet is stable, the temperature difference change of the air outlet in ts is less than 2 ℃, and the temperature of the air outlet is unstable, the temperature difference change of the air outlet in ts is more than 2 ℃, wherein t is more than or equal to 10s and less than or equal to 360s.
As shown in fig. 1, the air conditioner further includes a through-flow fan 20 and a heat exchanger 30, the through-flow fan 20 is disposed in the casing 10, the first flow guiding surface 43 of the volute tongue 40 is disposed opposite to the through-flow fan 20, the heat exchanger 30 is disposed in the casing 10, and the air flow in the air inlet channel 11 enters the air outlet channel 12 after heat exchange with the heat exchanger 30. The air flow in the shell is guided into the air inlet channel 11 through the air inlet channel 11 and enters the shell again after being subjected to heat exchange with the heat exchanger, so that the air flow which is partially subjected to heat exchange in the shell is guided to the heat exchanger again to exchange heat with the air inlet air flow, the air inlet is subjected to pre-temperature regulation, and the air outlet temperature of the heat exchanger is changed to be faster than the required temperature.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described in general terms in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the invention.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A volute structure, comprising:
a housing (10);
the spiral tongue (40), the spiral tongue (40) is connected with the inner wall of the shell (10), part of the spiral tongue (40) and the shell (10) are surrounded to form an air inlet channel (11), part of the spiral tongue (40) and the shell (10) are surrounded to form an air outlet channel (12), a backflow channel (42) is formed on the spiral tongue (40), a first end of the backflow channel (42) is communicated with the air outlet channel (12), a second end of the backflow channel (42) is communicated with the air inlet channel (11) so as to guide part of air flow in the air outlet channel (12) into the air inlet channel (11) and conduct heat exchange with air flow in the air inlet channel (11), a first guide surface (43) is formed at the end part of the spiral tongue (40), a second guide surface (44) is formed on the surface of the spiral tongue (40) close to the air outlet channel (12), and a round corner (41) is formed between the first guide surface (43) and the second guide surface (44);
the cross-flow fan blade (20), the cross-flow fan blade (20) is arranged in the shell (10);
the position of the reflux channel (42) is near the 2/3 section of the through-flow fan blade (20) on the volute tongue fillet (41).
2. The volute structure according to claim 1, characterized in that the length of the molded line of the volute tongue rounded corner (41) is L, the first end of the molded line of the volute tongue rounded corner (41) is connected with the second diversion surface (44), the second end of the molded line of the volute tongue rounded corner (41) is connected with the first diversion surface (43), and the first end of the air outlet channel (12) is opened at a position range L1 on the molded line of the volute tongue rounded corner (41), wherein L1 is less than or equal to 2/3L, and L1 is the length from the first end to the second end of the molded line of the volute tongue rounded corner (41).
3. The volute structure of claim 1, wherein the geometric centerline of the return channel (42) is an arc.
4. The volute structure of claim 1, wherein the maximum width of the return channel (42) is W,
W≤10mm。
5. the volute structure of claim 1, wherein the backflow channels (42) are a plurality of, the backflow channels (42) being spaced apart.
6. The volute structure of claim 1, further comprising:
-a slider (50), the slider (50) being slidably connected with a surface of the volute tongue (40), the slider (50) having a first position closing the return channel (42), and the slider (50) having a second position opening the return channel (42).
7. The volute structure according to claim 6, characterized in that the slider (50) is slidably connected to the outer surface of the volute tongue rounded corner (41), and the surface of the slider (50) on the side facing the volute tongue rounded corner (41) is an arc surface.
8. An air conditioner comprising a scroll structure, wherein the scroll structure is the scroll structure according to any one of claims 1 to 7.
9. The air conditioner of claim 8, further comprising:
a temperature sensing part connected with the shell (10), wherein the temperature sensing part is used for detecting the temperature of the air outlet;
and a control part electrically connected with the temperature sensing part, wherein the control part can control the sliding block (50) to be positioned at a first position for closing the backflow channel (42) or a second position for opening the backflow channel (42).
10. The air conditioner according to claim 9, wherein the control portion controls the slider (50) to be located at the first position when the temperature sensing portion detects that the outlet air temperature is stable, and controls the slider (50) to be located at the second position when the temperature sensing portion detects that the outlet air temperature is unstable.
11. The air conditioner of claim 9, further comprising:
the first diversion surface (43) of the volute tongue (40) is arranged opposite to the cross-flow fan blade (20);
the heat exchanger (30), the heat exchanger (30) set up in casing (10), the air current in air inlet channel (11) is through with heat exchange is carried out with heat exchanger (30) back get into in air-out passageway (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891670.5A CN108759041B (en) | 2018-08-07 | 2018-08-07 | Volute structure and air conditioner with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891670.5A CN108759041B (en) | 2018-08-07 | 2018-08-07 | Volute structure and air conditioner with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108759041A CN108759041A (en) | 2018-11-06 |
| CN108759041B true CN108759041B (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810891670.5A Active CN108759041B (en) | 2018-08-07 | 2018-08-07 | Volute structure and air conditioner with same |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542151A (en) * | 2019-09-26 | 2019-12-06 | 珠海格力电器股份有限公司 | heat exchange assembly and air conditioning equipment with same |
| CN114440316B (en) * | 2022-01-30 | 2024-02-27 | 广东美的暖通设备有限公司 | Air duct assembly and air conditioning equipment with same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210866A1 (en) * | 1972-03-07 | 1973-09-13 | Kurt Dr Ing Zenkner | HOUSING FOR A CROSS-FLOW FAN |
| GB1560117A (en) * | 1975-10-08 | 1980-01-30 | Zenkner K | Cross-flow blower |
| CN107975872A (en) * | 2017-11-24 | 2018-05-01 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner using same |
| CN108151135A (en) * | 2017-11-15 | 2018-06-12 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner using same |
-
2018
- 2018-08-07 CN CN201810891670.5A patent/CN108759041B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2210866A1 (en) * | 1972-03-07 | 1973-09-13 | Kurt Dr Ing Zenkner | HOUSING FOR A CROSS-FLOW FAN |
| GB1560117A (en) * | 1975-10-08 | 1980-01-30 | Zenkner K | Cross-flow blower |
| CN108151135A (en) * | 2017-11-15 | 2018-06-12 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner using same |
| CN107975872A (en) * | 2017-11-24 | 2018-05-01 | 珠海格力电器股份有限公司 | Indoor unit and air conditioner using same |
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| Publication number | Publication date |
|---|---|
| CN108759041A (en) | 2018-11-06 |
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