CN219639122U - Air conditioner and shaftless core axial flow fan thereof - Google Patents
Air conditioner and shaftless core axial flow fan thereof Download PDFInfo
- Publication number
- CN219639122U CN219639122U CN202320316346.7U CN202320316346U CN219639122U CN 219639122 U CN219639122 U CN 219639122U CN 202320316346 U CN202320316346 U CN 202320316346U CN 219639122 U CN219639122 U CN 219639122U
- Authority
- CN
- China
- Prior art keywords
- axial flow
- motor
- flow fan
- blades
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model relates to the field of fans, in particular to an air conditioner and a shaftless spindle flow fan thereof. A shaftless spindle flow fan comprises an outer rotor motor and axial flow fan blades; the outer rotor motor comprises a motor stator ring and a motor rotor ring, and the motor rotor ring is rotationally arranged on the inner side of the motor stator ring; the axial flow fan blade comprises a plurality of axial flow blades, the axial flow blades are circumferentially arranged on the inner side of the motor rotor ring at intervals, the outer edges of the axial flow blades are connected with the inner wall of the motor rotor ring to realize circumferential linkage, and an air passing port is formed between every two adjacent axial flow blades. The axial flow fan without the shaft core is more in line with the acting characteristic of the axial flow fan blade, and the fan blade has smaller quality and lower cost under the same acting condition; the structure is simple, and the disturbance of the motor and the motor bracket to the flow field is avoided; the noise and vibration of the whole machine are greatly reduced, and the use experience of customers is improved.
Description
Technical Field
The utility model relates to the field of fans, in particular to an air conditioner and a shaftless spindle flow fan thereof.
Background
The air conditioner outdoor unit adopts an axial flow fan to dissipate heat, and the air flow generated by the axial flow fan and having the same direction with the axis of the fan blade, namely the flow direction of the air is parallel to the axis. Referring to fig. 1, an air conditioner outdoor unit employing an existing axial flow fan is shown. The axial flow fan consists of a hub and a plurality of axial flow blades, wherein the hub is provided with a mounting hole which is matched with the shaft core of the driving motor. Because of the structural characteristics of the axial flow fan blade, the blade has more work near the outer edge and less work near the inner edge, while the outer edge of the traditional fan blade structure is suspended and needs to be structurally reinforced, such as thickened, reinforced and other structures, so as to reduce the vibration of the outer edge and the blade tip of the blade caused by the work of the blade, and the blade and the hub part also need to be structurally reinforced to provide the supporting function of the work of the blade, thus the integral structure of the fan blade needs unnecessary weight increase and the cost of the fan blade is increased.
Disclosure of Invention
In order to solve the above problems, a first object of the present utility model is to provide a shaftless axial flow fan, which better conforms to the working characteristics of axial flow fan blades, and has smaller fan blade mass and lower cost under the same working condition; the structure is simple, and the disturbance of the motor and the motor bracket to the flow field is avoided; the noise and vibration of the whole machine are greatly reduced, and the use experience of customers is improved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a shaftless spindle flow fan comprises an outer rotor motor and axial flow fan blades; the method is characterized in that: the outer rotor motor comprises a motor stator ring and a motor rotor ring, and the motor rotor ring is rotationally arranged on the inner side of the motor stator ring; the axial flow fan blade comprises a plurality of axial flow blades, the axial flow blades are circumferentially arranged on the inner side of the motor rotor ring at intervals, the outer edges of the axial flow blades are connected with the inner wall of the motor rotor ring to realize circumferential linkage, and an air passing port is formed between every two adjacent axial flow blades.
The utility model adopts the technical scheme, and the technical scheme relates to a shaftless axial flow fan, wherein an outer rotor motor is adopted in the shaftless axial flow fan to replace an inner rotor motor adopted in the traditional axial flow fan, when the outer rotor motor operates, a motor stator ring is fixed, and the motor rotor ring can rotate relative to the motor stator ring.
On the basis, the axial flow fan blade in the scheme is circumferentially arranged on the inner side of the motor rotor ring at intervals, and the motor rotor ring can drive the axial flow fan blades to circumferentially rotate together in the rotating process. The axial flow fan blade in the scheme has no hub and mounting holes on the hub, and the outer edge of the blade is firmly connected with the motor rotor.
With this solution, the following advantages are achieved:
1, because the acting position of the axial flow blade is arranged on the outer side connected with the motor rotor, the area of the connecting part is larger, enough support can be provided without structural reinforcement, the inner edge of the blade with less acting is suspended, special reinforcement is not needed, and enough strength is provided by means of the support of the outer edge.
2, the outer edges of the axial flow blades can be expanded to the inner wall of the motor rotor ring, compared with the traditional axial flow blades, the outer edges of the axial flow blades are larger in size, and the outer edges of the axial flow blades can generate larger air quantity. The axial flow fan blade has the advantages of more conforming to the working characteristics of the axial flow fan blade, smaller fan blade quality and lower cost under the same working condition.
3, the mechanical connection structure of the fan blade and the motor is canceled; meanwhile, the shake of the blade tip and the outer edge doing work is stopped; the motor and the motor bracket are eliminated, and the disturbance of the motor and the motor bracket to the flow field is eliminated; the noise and vibration of the whole machine are greatly reduced, and the use experience of customers is improved.
In a further preferred embodiment, the inner edges of the plurality of axial flow blades are not in contact, and an axial through hole is formed around the axial center. In the scheme, the axial speed of the axial flow fan blade is considered to be smaller, and the work done on the air flow is smaller, so that the air quantity is limited to be lifted in the rotating process, and higher strength is required. Therefore, the scheme enables the plurality of axial flow blades to be independent from each other and not in contact with each other. The axial flow fan blade can save the whole material of the axial flow fan blade, reduce the weight and improve the rotation efficiency.
In a specific embodiment, the diameter D1 of the axial through hole accounts for 15% -25% of the diameter D2 of the inner wall of the motor rotor ring. Under the proportion, the size of the axial flow fan blade can be reduced on the basis of influencing the axial flow air quantity as much as possible, and the rotation efficiency is improved.
Preferably, the outer edge of the axial flow blade and the inner wall of the motor rotor ring are integrally injection molded, and in the scheme, the axial flow blade and the motor rotor ring are integrally injection molded, so that the connection strength of the axial flow blade and the motor rotor ring can be ensured.
In the above scheme, the outer rotor motor is in the prior art, and the structure of the outer rotor motor is applied to the axial flow fan. Therefore, the technology of the outer rotor motor is not described in detail, but only the arrangement of coil windings on the motor stator ring, and the permanent magnets on the motor rotor ring are described. The motor rotor ring can rotate relative to the motor stator ring based on electromagnetic action.
A second object of the present utility model is to provide an air conditioner including a housing, and an axial flow fan disposed inside the housing; the method is characterized in that: the axial flow fan is a shaftless spindle flow fan as described above.
Drawings
Fig. 1 is a schematic diagram of a conventional outdoor unit of an air conditioner.
Fig. 2 is a schematic view of the shaftless axial flow fan according to example 1.
Fig. 3 is a schematic view of the structure of an air conditioner outdoor unit according to embodiment 2.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1:
as shown in fig. 2, the embodiment relates to a shaftless spindle flow fan, which comprises an outer rotor motor 1 and axial flow blades. The outer rotor motor 1 comprises a motor stator ring 11 and a motor rotor ring 12, wherein the motor rotor ring 12 is rotatably arranged on the inner side of the motor stator ring 11. In the shaftless axial flow fan, an outer rotor motor 1 is adopted to replace an inner rotor motor adopted in the conventional axial flow fan, when the outer rotor motor 1 operates, a motor stator ring 11 is fixed, and a motor rotor ring 12 can rotate relative to the motor stator ring 11. The external rotor motor 1 in the above scheme is the prior art, and the scheme is to apply the structure of the external rotor motor 1 to an axial flow fan. Therefore, the technology of the outer rotor motor 1 will not be described in detail, and only the arrangement of coil windings on the motor stator ring 11 and the arrangement of permanent magnets on the motor rotor ring 12 will be described. The rotation of the motor rotor ring 12 relative to the motor stator ring 11 can be achieved based on electromagnetic action.
As shown in the figure, the axial flow fan blade comprises a plurality of axial flow blades 2, the axial flow blades 2 are circumferentially arranged at intervals on the inner side of the motor rotor ring 12, the outer edges of the axial flow blades 2 are connected with the inner wall of the motor rotor ring 12 to realize circumferential linkage, and an air passing port is formed between two adjacent axial flow blades 2. The axial flow fan blade in the scheme adopts a plurality of axial flow blades 2 to be circumferentially arranged at intervals on the inner side of the motor rotor ring 12, and the motor rotor ring 12 can drive the plurality of axial flow blades 2 to circumferentially rotate together in the rotating process. The axial flow fan blade in the scheme has no hub and mounting holes on the hub, and the outer edge of the blade is firmly connected with the motor rotor. In a further preferred scheme, the outer edge of the axial flow blade 2 and the inner wall of the motor rotor ring 12 are integrally injection molded, and in the scheme, the axial flow blade 2 and the motor rotor ring 12 are integrally injection molded, so that the connection strength of the two can be ensured.
With this solution, the following advantages are achieved:
1, because the working position of the axial flow blade 2 is arranged on the outer side connected with the motor rotor, the area of the connecting part is larger, enough support can be provided without structural reinforcement, the inner edge of the blade with less working is suspended, special reinforcement is not needed, and enough strength is provided by means of the support of the outer edge.
2, the outer edge of the axial flow blade 2 can be expanded to the inner wall of the motor rotor ring 12, compared with the traditional axial flow blade, the outer edge of the axial flow blade 2 is larger in size, and the outer edge of the axial flow blade 2 can generate larger air quantity. The axial flow fan blade has the advantages of more conforming to the working characteristics of the axial flow fan blade, smaller fan blade quality and lower cost under the same working condition.
And 3, the mechanical connection structure of the fan blade and the motor is canceled. And meanwhile, the shake of the blade tip and the outer edge of the working blade is avoided. The motor and the motor bracket are eliminated, and the disturbance of the motor and the motor bracket to the flow field is eliminated. The noise and vibration of the whole machine are greatly reduced, and the use experience of customers is improved.
In a further preferred embodiment, the inner edges of the plurality of axial flow blades 2 are not in contact, and an axial through hole 20 is formed around the axial center. In the scheme, the axial speed of the axial flow fan blade is considered to be smaller, and the work done on the air flow is smaller, so that the air quantity is limited to be lifted in the rotating process, and higher strength is required. Therefore, the axial flow blades 2 are independent from each other and do not contact with each other. The axial flow fan blade can save the whole material of the axial flow fan blade, reduce the weight and improve the rotation efficiency. In a specific embodiment, the diameter D1 of the axial through hole 20 is 15% -25% of the diameter D2 of the inner wall of the motor rotor ring 12. Under the proportion, the size of the axial flow fan blade can be reduced on the basis of influencing the axial flow air quantity as much as possible, and the rotation efficiency is improved.
Example 2:
as shown in fig. 3, the present embodiment is to provide an air conditioner including a housing 3, and an axial flow fan provided inside the housing 3. The axial flow fan is a shaftless spindle flow fan as described in example 1.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the utility model.
Claims (6)
1. A shaftless spindle flow fan comprises an outer rotor motor (1) and axial flow fan blades; the method is characterized in that: the outer rotor motor (1) comprises a motor stator ring (11) and a motor rotor ring (12), and the motor rotor ring (12) is rotationally arranged on the inner side of the motor stator ring (11); the axial flow fan blade comprises a plurality of axial flow blades (2), the axial flow blades (2) are circumferentially arranged at intervals on the inner side of the motor rotor ring (12), the outer edges of the axial flow blades (2) are connected with the inner wall of the motor rotor ring (12) to realize circumferential linkage, and an air outlet is formed between two adjacent axial flow blades (2).
2. A shaftless spindle current fan according to claim 1, wherein: the inner edges of the axial flow blades (2) are not contacted, and an axle center through hole (20) is formed at the axle center in an enclosing way.
3. A shaftless spindle current fan according to claim 2, wherein: the diameter D1 of the shaft center through hole (20) accounts for 15% -25% of the diameter D2 of the inner wall of the motor rotor ring (12).
4. A shaftless spindle current fan according to claim 1, wherein: the outer edges of the axial flow blades (2) and the inner wall of the motor rotor ring (12) are integrally injection molded.
5. A shaftless spindle current fan according to claim 1, wherein: coil windings are arranged on the motor stator ring (11), and permanent magnets are arranged on the motor rotor ring (12).
6. An air conditioner comprises a shell (3) and an axial flow fan arranged inside the shell (3); the method is characterized in that: the axial flow fan is the shaftless axial flow fan according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320316346.7U CN219639122U (en) | 2023-02-14 | 2023-02-14 | Air conditioner and shaftless core axial flow fan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320316346.7U CN219639122U (en) | 2023-02-14 | 2023-02-14 | Air conditioner and shaftless core axial flow fan thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219639122U true CN219639122U (en) | 2023-09-05 |
Family
ID=87814960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320316346.7U Active CN219639122U (en) | 2023-02-14 | 2023-02-14 | Air conditioner and shaftless core axial flow fan thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219639122U (en) |
-
2023
- 2023-02-14 CN CN202320316346.7U patent/CN219639122U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108599513A (en) | A kind of permanent magnetic brushless with long service life | |
| JP2014126041A (en) | Blower fan | |
| CN210568878U (en) | Air conditioner outdoor unit and air conditioning equipment | |
| CN219639122U (en) | Air conditioner and shaftless core axial flow fan thereof | |
| CN106640693A (en) | Vertical type direct connection draught fan | |
| CN205986494U (en) | High rotational speed, fast heat conduction motor | |
| CN112769278B (en) | High-rotating-speed motor and assembling method thereof | |
| CN210405012U (en) | Integrated motor | |
| CN212627367U (en) | Hollow shaft inner rotor motor | |
| CN103141011B (en) | Fan electromotor and the air conditioner possessing this fan electromotor | |
| CN212751981U (en) | New-type structure external rotor electric machine shell and external rotor electric machine | |
| CN209659057U (en) | A kind of motor in axial magnetic field | |
| CN104481898B (en) | Use the external rotor axial-flow fan of electromagnetic bearing | |
| CN210423107U (en) | Fan and electrical equipment | |
| CN112737181A (en) | Motor rotor cooling structure and motor | |
| CN218093531U (en) | Fan and air conditioner | |
| CN111049321A (en) | Electric machine with double-fan cooling system | |
| CN214506706U (en) | Motor rotor cooling structure and motor | |
| CN220452234U (en) | Magnetic suspension centrifugal fan | |
| CN212486232U (en) | High-rotating-speed brushless dust collector motor | |
| CN214154268U (en) | Brushless dust collector motor | |
| CN218678788U (en) | Large-torque outer rotor brushless motor for electric screwdriver | |
| CN217115812U (en) | Permanent magnet brushless direct current motor convenient for heat dissipation | |
| CN218733506U (en) | Outer rotor high-torque variable frequency motor | |
| CN217216291U (en) | Exciter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |