CN109538526B - Cross-flow fan blade and air conditioning unit - Google Patents
Cross-flow fan blade and air conditioning unit Download PDFInfo
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- CN109538526B CN109538526B CN201811435141.0A CN201811435141A CN109538526B CN 109538526 B CN109538526 B CN 109538526B CN 201811435141 A CN201811435141 A CN 201811435141A CN 109538526 B CN109538526 B CN 109538526B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000009471 action Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a cross-flow fan blade and an air conditioning unit. The cross-flow fan blades comprise at least two stages of middle-section fan blades which are coaxially connected, and all the middle-section fan blades are in a first state and a second state which are all overlapped or partially overlapped in parallel. According to the cross-flow fan blade and the air conditioning unit, the middle-section fan blades are of the overlapped structure, the size of the cross-flow fan blade can be reduced as much as possible, so that the cross-flow fan blade is convenient to install, and in the working state, all the middle-section fan blades can be restored to the state of parallel arrangement under the action of rotation, so that the optimal working state is ensured, and the problem that the cross-flow fan blade is inconvenient to install due to overlarge size is effectively solved.
Description
Technical Field
The invention relates to the technical field of fan equipment, in particular to a cross-flow fan blade and an air conditioning unit.
Background
With the rapid development of technology, the demand of central air conditioners in the market is increasing. At present, a plurality of fan blades are adopted in central air-conditioning indoor units sold in the market, and the cross-flow fan blade is used as a fan blade with larger air output and is applied to a plurality of machine types, however, the traditional cross-flow fan blade is very difficult to install due to the longer self length.
Disclosure of Invention
In order to solve the technical problem of difficult installation of the cross-flow fan blade, the cross-flow fan blade and the air conditioning unit with reduced installation volume under the condition of ensuring the normal working state are provided.
The cross-flow fan blade comprises at least two stages of middle-section fan blades which are coaxially connected, wherein all the middle-section fan blades are in a first state of being arranged in parallel and a second state of being overlapped or partially overlapped.
The number of the middle section fan blades is two, and the middle section fan blades comprise a fixed middle section fan blade and a movable middle section fan blade, and in the second state, the movable middle section fan blade is overlapped to the fixed middle section fan blade.
The middle section fan blade comprises an end cover and a plurality of blades, and in the second state, the blades of the movable middle section fan blade penetrate through the end cover of the fixed middle section fan blade and then extend into the fixed middle section fan blade.
The number of the middle section fan blades is multiple, and the middle section fan blades comprise at least one fixed middle section fan blade and a plurality of movable middle section fan blades, and all the movable middle section fan blades corresponding to one fixed middle section fan blade are overlapped on the fixed middle section fan blade in the second state.
All the movable middle section blades corresponding to one fixed middle section blade are divided into multiple stages along the direction away from the fixed middle section blade, and the movable middle section blade at the next stage is sequentially overlapped on the movable middle section blade at the previous stage and finally overlapped on the fixed middle section blade.
The middle section fan blade comprises an end cover and a plurality of blades, and in the second state, the blades of the movable middle section fan blade at the next stage sequentially penetrate through the end covers of the movable middle section fan blades at the previous stage and then penetrate through the end covers of the fixed middle section fan blade.
The blade has a first included angle with the end cap.
The number of the fixed middle section fan blades is one, and all the movable middle section fan blades are uniformly distributed along the same direction away from the fixed middle section fan blades.
The cross-flow fan blade further comprises an end plate, the first ends of the blades for fixing the middle-section fan blade are fixedly arranged on the end cover, and the second ends of the blades are fixedly arranged on the end plate.
The cross-flow fan blades comprise rotating shafts, all the middle-section fan blades are arranged on the rotating shafts, when the rotating shafts are in a stop state, the movable middle-section fan blades are in the second state, and when the rotating shafts are switched from the stop state to the rotating state, the movable middle-section fan blades are gradually switched from the second state to the first state.
The middle section fan blades comprise a plurality of blades, the blades on the adjacent two stages of the middle section fan blades are arranged in one-to-one correspondence, a clamping device is arranged between the two corresponding blades, and preferably, a lubricating material is arranged between the two corresponding blades.
The clamping device comprises a buckle and a chute, wherein one of the two corresponding blades is provided with the buckle, the other blade is provided with the chute, and the length of the chute is smaller than that of the blade.
The middle section fan blades further comprise end covers, the first ends of all the fan blades are arranged on the end covers, the second ends penetrate through the end covers of the adjacent middle section fan blades and then extend into the corresponding middle section fan blades, the clamping devices are arranged on the second ends of the fan blades, and in the first state, the clamping devices are abutted to the end covers.
The cross-flow fan blade further comprises a tensioning mechanism for switching all the middle-section fan blades from a first state to a second state, and two ends of the tensioning mechanism are respectively connected with the middle-section fan blades at two ends.
The tensioning mechanism is a spring.
The cross-flow fan blade further comprises a rotating shaft, and the spring is sleeved on the rotating shaft.
The cross-flow fan blade comprises a plurality of blades, wherein each blade is provided with at least two stages of telescopic structures, and each blade is provided with a third state in which all the telescopic structures are in a contracted state when the cross-flow fan blade stops and a fourth state in which all or part of the telescopic structures are in an extended state when the cross-flow fan blade works.
The cross-flow fan blade further comprises a tensioning mechanism for switching all the blades from a fourth state to a third state, and two ends of the tensioning mechanism are respectively connected with the blades at two ends.
The tensioning mechanism is a spring.
The cross-flow fan blade further comprises a rotating shaft, and the spring is sleeved on the rotating shaft.
An air conditioning unit comprises the cross-flow fan blade.
According to the cross-flow fan blade and the air conditioning unit, the middle-section fan blades are of the overlapped structure, the size of the cross-flow fan blade can be reduced as much as possible, so that the cross-flow fan blade is convenient to install, and in the working state, all the middle-section fan blades can be restored to the state of parallel arrangement under the action of rotation, so that the optimal working state is ensured, and the problem that the cross-flow fan blade is inconvenient to install due to overlarge size is effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of a cross-flow fan blade and a cross-flow fan blade of an embodiment of an air conditioning unit in a first state or a fourth state;
FIG. 2 is a schematic structural diagram of a cross-flow fan blade in a second state or a third state according to an embodiment of the present invention;
FIG. 3 is a schematic view of a cross-flow fan blade and a middle fan blade of an embodiment of an air conditioning unit according to the present invention;
In the figure:
1. Middle section fan blades; 11. fixing the middle section fan blade; 12. a movable middle section fan blade; 13. an end cap; 14. a blade; 2. an end plate; 3. a rotation shaft; 5. and a tensioning mechanism.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The cross-flow fan blade shown in fig. 1 to 3 comprises at least two stages of middle-section fan blades 1 which are coaxially connected, wherein all the middle-section fan blades 1 are provided with a first state and a second state which are all overlapped or partially overlapped in parallel, namely, when the cross-flow fan blade works normally, all the middle-section fan blades 1 are in the first state, so that the maximum air output of the cross-flow fan blade is ensured, and when the cross-flow fan blade is in a stopped state, all the middle-section fan blades 1 are in the second state, so that the volume of the cross-flow fan blade is ensured to be smaller than that of the cross-flow fan blade during normal work when the cross-flow fan blade is installed, the installation is convenient, and when the cross-flow fan blade is converted from the stopped state to the normal work state, the cross-flow fan blade is gradually switched to the first state from the second state, so that the reliability of the structure of the cross-flow fan blade is ensured.
The number of the middle section fan blades 1 is two, the middle section fan blades comprise a fixed middle section fan blade 11 and a movable middle section fan blade 12, the movable middle section fan blade 12 is overlapped on the fixed middle section fan blade 11 in the second state, and the movable middle section fan blade 12 and the fixed middle section fan blade 11 are arranged in parallel in the first state, so that the maximum air output is ensured.
The middle section fan blade 1 comprises an end cover 13 and a plurality of fan blades 14, and in the second state, the fan blades 14 of the movable middle section fan blade 12 penetrate through the end cover 13 of the fixed middle section fan blade 11 and then extend into the fixed middle section fan blade 11, so that the length from the end cover 13 of the movable middle section fan blade 12 to the fixed middle section fan blade 11 is reduced, and the size of the cross-flow fan blade is further reduced.
The number of the middle section blades 1 is more than one, and the middle section blades comprise at least one fixed middle section blade 11 and a plurality of movable middle section blades 12, in the second state, all the movable middle section blades 12 corresponding to one fixed middle section blade 11 are overlapped on the fixed middle section blade 11, so that the volume of the through-flow blade is reduced to the greatest extent, as shown in fig. 1 and 2, the number of the middle section blades 1 is three, the number of the fixed middle section blades 11 is one, the number of the movable middle section blades 12 is two, in the first state of the through-flow blade, the three middle section blades 1 are arranged in parallel, and in the second state of the through-flow blade, the two movable middle section blades 12 are overlapped in one fixed middle section blade 11, so that the volume of the through-flow blade is reduced.
All the movable middle section blades 12 corresponding to one fixed middle section blade 11 are divided into multiple stages along the direction away from the fixed middle section blade 11, the movable middle section blades 12 at the next stage are sequentially overlapped on the movable middle section blades 12 at the previous stage, and finally overlapped on the fixed middle section blade 11, namely, the movable middle section blades 12 at the farthest position from the fixed middle section blade 11 form the movable middle section blade 12 at the lowest stage, and in the overlapping process, the movable middle section blades 12 at the lowest stage are sequentially overlapped at the previous stage, and finally overlapped on the fixed middle section blade 11.
The middle section fan blade 1 comprises an end cover 13 and a plurality of blades 14, and in the second state, the blades 14 of the movable middle section fan blade 12 at the next stage sequentially penetrate through the end covers 13 of all the movable middle section fan blades 12 at the previous stage and then penetrate through the end covers 13 of the fixed middle section fan blade 11, namely in the second state, the blades 14 of the movable middle section fan blade 12 at the lowest stage need to penetrate through all the movable middle section fan blades 12 at the previous stage and finally penetrate through the end covers 13 of the fixed middle section fan blade 11 to complete overlapping, so that the volume of the cross-flow fan blade is reduced to the maximum extent.
The first included angle is formed between the blade 14 and the end cover 13, and the first included angle is used to generate a component force for switching the middle section blade 1 from the second state to the first state when the through-flow blade rotates, so that the purpose that the through-flow blade can recover to the optimal working size in the working process is achieved, wherein the first included angle is alpha, and the first included angle is shown in fig. 3 as a stress analysis of stress on the blade.
The number of the fixed middle section fan blades 11 is one, and all the movable middle section fan blades 12 are uniformly distributed along the same direction away from the fixed middle section fan blades 11.
The cross-flow fan blade further comprises an end plate 2, a first end of the blade 14 of the fixed middle-section fan blade 11 is fixedly arranged on the end cover 13, and a second end of the blade is fixedly arranged on the end plate 2, so that the fixed middle-section fan blade 11 and all the movable middle-section fan blades 12 form a whole.
The cross-flow fan blade comprises a rotating shaft 3, all the middle-section fan blades 1 are arranged on the rotating shaft 3, when the rotating shaft 3 is in a stop state, the movable middle-section fan blade 12 is in the second state, and when the rotating shaft 3 is switched from the stop state to the rotating state, the movable middle-section fan blade 12 is gradually switched from the second state to the first state, the rotating force of the rotating shaft 3 is utilized to enable the middle-section fan blade 1 to rotate along with the rotating shaft, the blades 14 on the middle-section fan blade 1 bear wind resistance, and due to the existence of a first included angle, the air flow resistance born by two sides of the blades 14 is inconsistent, so that a force in the axial direction of the rotating shaft 3 is generated on the blades 14, and the movable middle-section fan blade 12 is pushed out from the second state to the first state, thereby realizing the purpose of switching the cross-flow fan blade from the minimum volume to the normal working state.
The rotation speed of the through-flow fan blade shown in fig. 1 and 2 is synchronously transmitted to each middle section fan blade after the rotation of the rotation shaft. The expansion process of the cross-flow fan blade is that the movable middle-section fan blade farthest from the fixed middle-section fan blade is stretched out preferentially under the air flow force, and the movable middle-section fan blade of the upper stage is driven to be stretched out after the stretching is finished. Fig. 3 is a schematic structural view of a middle section of fan blades, where each blade has a first included angle with its end surface. After the middle section fan blade rotates, the left side and the right side of the fan blade are inconsistent in airflow resistance due to the existence of the inclination angle. If the airflow resistance is decomposed to obtain a right force, the right force can be approximately regarded as a right airflow thrust, and the thrust is the dominant force of the automatic expansion of the cross-flow fan blade.
The middle section fan blade 1 comprises a plurality of blades 14, the blades 14 on the middle section fan blade 1 of the adjacent two stages are arranged in one-to-one correspondence, and a clamping device is arranged between the two corresponding blades 14, so that the two blades 14 can be prevented from being separated by the clamping device, and further, the adjacent two stages of the middle section fan blades 1 can be prevented from being separated from each other due to the force of the axial direction of the rotating shaft.
When the fan starts to operate, all the middle-section fan blades enter the process of sequentially unfolding and stretching, and the blades are limited to continuously slide relatively due to the effect of the clamping device at the moment that the middle-section fan blade at the next stage is about to stretch completely. And the rightward airflow force continuously pulls the blades to slide rightward, and the generated superposition effect is that the next-stage blades drive the previous-stage blades to follow. And so on to obtain the whole extension process.
Preferably, the cross section of the blade 14 is arcuate.
The clamping device comprises a buckle and a chute, wherein one of the two corresponding blades 14 is provided with the buckle, the other blade 14 is provided with the chute, and the length of the chute is smaller than that of the blade 14, so that the two blades 14 are ensured to have an overlapped part all the time, and the problem of disconnection is prevented.
The middle section fan blade 1 further comprises an end cover 13, all first ends of the blades 14 are arranged on the end cover 13, the second ends penetrate through the end cover 13 of the adjacent middle section fan blade 1 and then stretch into the corresponding middle section fan blade 1, the clamping device is arranged on the second ends of the blades 14, and in the first state, the clamping device is abutted to the end cover 13, the second ends of the blades 14 are clamped on the end cover 13 by the clamping device, the purpose of preventing the movable middle section fan blade 12 from falling out is achieved, through holes for the blades 14 to penetrate through are formed in the end cover 13, and the clamping device can be of a structure with cross section size larger than the size of the through holes or of a structure with different shapes from the through holes.
The cross-flow fan blade further comprises a tensioning mechanism 5 for switching all the middle-section fan blades 1 from the first state to the second state, two ends of the tensioning mechanism 5 are respectively connected with the middle-section fan blades 1 at two ends, when the cross-flow fan blade is in a stop state, the tensioning mechanism 5 is used for tensioning all the middle-section fan blades 1 to an overlapped state, and when the cross-flow fan blade starts to work, the force in the axial direction of a rotating shaft generated by the cross-flow fan blade is larger than the pulling force of the tensioning mechanism 5, so that the cross-flow fan blade can be guaranteed to achieve an optimal working structure, and the purpose of freely stretching the cross-flow fan blade is finally achieved.
The tensioning mechanism 5 is a spring.
The cross-flow fan blade further comprises a rotating shaft 3, and the spring is sleeved on the rotating shaft 3.
As another embodiment, a through-flow fan comprises a plurality of blades 14, each blade 14 is provided with at least two stages of telescopic structures, each blade 14 has a third state in which all telescopic structures are in a contracted state when the through-flow fan is stopped and a fourth state in which all or part of telescopic structures are in an extended state when the through-flow fan is operated, and when the through-flow fan is installed, all the blades 14 are switched to the third state, so that the volume of the through-flow fan is reduced.
The cross-flow fan blade further comprises a tensioning mechanism 5 for switching all the blades 14 from the fourth state to the third state, two ends of the tensioning mechanism 5 are respectively connected with the blades 14 at two ends, when the cross-flow fan blade is in a stop state, the tensioning mechanism 5 is used for tensioning all the middle-section fan blades 1 to an overlapped state, and when the cross-flow fan blade starts to work, the force in the axial direction of a rotating shaft generated by the cross-flow fan blade is larger than the pulling force of the tensioning mechanism 5, so that the cross-flow fan blade can be guaranteed to achieve an optimal working structure, and the purpose of freely stretching the cross-flow fan blade is finally achieved.
The tensioning mechanism 5 is a spring.
The cross-flow fan blade further comprises a rotating shaft 3, and the spring is sleeved on the rotating shaft 3.
An air conditioning unit comprises the cross-flow fan blade.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (14)
1. The utility model provides a through-flow fan blade which characterized in that: the wind turbine comprises at least two stages of middle-section wind blades (1) which are coaxially connected, wherein all the middle-section wind blades (1) are in a first state of parallel arrangement and a second state of full overlapping or partial overlapping; the middle section fan blade (1) comprises end covers (13) and a plurality of blades (14), the number of the middle section fan blades (1) is at least two, the middle section fan blade (1) comprises at least one fixed middle section fan blade (11) and at least one movable middle section fan blade (12), and in the second state, the blades (14) of the movable middle section fan blade (12) penetrate through the end covers (13) of the fixed middle section fan blade (11) and then extend into the fixed middle section fan blade (11); a first included angle is formed between the blade (14) and the end cover (13); the cross-flow fan blades comprise rotating shafts (3), all the middle-section fan blades (1) are arranged on the rotating shafts (3), when the rotating shafts (3) are in a stop state, the movable middle-section fan blades (12) are in the second state, and when the rotating shafts (3) are switched from the stop state to the rotating state, the movable middle-section fan blades (12) are gradually switched from the second state to the first state.
2. The through-flow fan blade according to claim 1, wherein: the number of the middle section fan blades (1) is two, the middle section fan blades comprise a fixed middle section fan blade (11) and a movable middle section fan blade (12), and in the second state, the movable middle section fan blade (12) is overlapped on the fixed middle section fan blade (11).
3. The through-flow fan blade according to claim 1, wherein: the number of the middle section fan blades (1) is multiple, and the middle section fan blades comprise at least one fixed middle section fan blade (11) and a plurality of movable middle section fan blades (12), and all the movable middle section fan blades (12) corresponding to one fixed middle section fan blade (11) are overlapped on the fixed middle section fan blade (11) in the second state.
4. A crossflow vane as claimed in claim 3, wherein: all movable middle section blades (12) corresponding to one fixed middle section blade (11) are divided into multiple stages along the direction away from the fixed middle section blade (11), and the movable middle section blades (12) at the next stage are sequentially overlapped on the movable middle section blade (12) at the previous stage and finally overlapped on the fixed middle section blade (11).
5. The cross-flow fan blade according to claim 4, wherein: the middle section fan blade (1) comprises an end cover (13) and a plurality of blades (14), and in the second state, the blades (14) of the movable middle section fan blade (12) at the next stage sequentially penetrate through the end covers (13) of the movable middle section fan blades (12) at the previous stage and then penetrate through the end covers (13) of the fixed middle section fan blade (11).
6. A crossflow vane as claimed in claim 3, wherein: the number of the fixed middle section fan blades (11) is one, and all the movable middle section fan blades (12) are uniformly distributed along the same direction away from the fixed middle section fan blades (11).
7. A through-flow fan blade according to claim 1 or 3, characterized in that: the cross-flow fan blade further comprises an end plate (2), a first end of the blade (14) for fixing the middle-section fan blade (11) is fixedly arranged on the end cover (13), and a second end of the blade is fixedly arranged on the end plate (2).
8. The through-flow fan blade according to claim 1, wherein: the middle section fan blades (1) comprise a plurality of blades (14), the blades (14) on the two adjacent sections of the middle section fan blades (1) are arranged in one-to-one correspondence, and a clamping device is arranged between the two corresponding blades (14).
9. The cross-flow fan blade according to claim 8, wherein: the clamping device comprises a buckle and a chute, wherein one of two corresponding blades (14) is provided with the buckle, the other blade (14) is provided with the chute, and the length of the chute is smaller than that of the blade (14).
10. The cross-flow fan blade according to claim 8, wherein: the middle section fan blade (1) further comprises an end cover (13), the first ends of all the blades (14) are arranged on the end cover (13), the second ends penetrate through the end cover (13) of the adjacent middle section fan blade (1) and then stretch into the corresponding middle section fan blade (1), the clamping device is arranged on the second end of the blades (14), and in the first state, the clamping device is abutted to the end cover (13).
11. The through-flow fan blade according to claim 1, wherein: the cross-flow fan blade further comprises a tensioning mechanism (5) for switching all the middle-section fan blades (1) from a first state to a second state, and two ends of the tensioning mechanism (5) are respectively connected with the middle-section fan blades (1) at two ends.
12. The through-flow fan blade of claim 11, wherein: the tensioning mechanism (5) is a spring.
13. The cross-flow fan blade of claim 12, wherein: the cross-flow fan blade further comprises a rotating shaft (3), and the spring is sleeved on the rotating shaft (3).
14. An air conditioning unit, characterized in that: comprising a cross-flow fan blade according to any of claims 1 to 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435141.0A CN109538526B (en) | 2018-11-28 | 2018-11-28 | Cross-flow fan blade and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811435141.0A CN109538526B (en) | 2018-11-28 | 2018-11-28 | Cross-flow fan blade and air conditioning unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538526A CN109538526A (en) | 2019-03-29 |
| CN109538526B true CN109538526B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811435141.0A Active CN109538526B (en) | 2018-11-28 | 2018-11-28 | Cross-flow fan blade and air conditioning unit |
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| CN (1) | CN109538526B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110043961B (en) * | 2019-05-08 | 2023-03-21 | 青岛海尔空调器有限总公司 | Suspension angle air conditioner |
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| CN110043956B (en) * | 2019-05-08 | 2023-03-21 | 青岛海尔空调器有限总公司 | Suspension angle air conditioner |
| CN110043962B (en) * | 2019-05-08 | 2023-03-21 | 青岛海尔空调器有限总公司 | Suspension angle air conditioner |
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| CN110118385B (en) * | 2019-05-15 | 2023-03-21 | 青岛海尔空调器有限总公司 | Suspension angle air conditioner indoor unit |
| CN110160160B (en) * | 2019-05-15 | 2023-04-07 | 青岛海尔空调器有限总公司 | Suspension angle air conditioner indoor unit |
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| CN110878761A (en) * | 2019-12-06 | 2020-03-13 | 宁波奥克斯电气股份有限公司 | Cross-flow fan blade and air conditioner |
| CN113294354B (en) * | 2020-02-24 | 2022-09-06 | 青岛海尔空调器有限总公司 | Cross flow fan and air conditioner |
| CN113294353B (en) * | 2020-02-24 | 2022-09-02 | 青岛海尔空调器有限总公司 | Cross flow fan and air conditioner |
| CN112524065B (en) * | 2020-06-12 | 2022-06-07 | 东莞市祥合源电子科技有限公司 | Portable telescopic folding bladeless fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105326175A (en) * | 2009-12-31 | 2016-02-17 | 上田满 | Fan device and parasol comprising the same |
| CN209469615U (en) * | 2018-11-28 | 2019-10-08 | 珠海格力电器股份有限公司 | Through-flow fan blade and air-conditioner set |
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2018
- 2018-11-28 CN CN201811435141.0A patent/CN109538526B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326175A (en) * | 2009-12-31 | 2016-02-17 | 上田满 | Fan device and parasol comprising the same |
| CN209469615U (en) * | 2018-11-28 | 2019-10-08 | 珠海格力电器股份有限公司 | Through-flow fan blade and air-conditioner set |
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|---|---|
| CN109538526A (en) | 2019-03-29 |
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