CN209805531U - Fan motor and centrifugal fan - Google Patents
Fan motor and centrifugal fan Download PDFInfo
- Publication number
- CN209805531U CN209805531U CN201921114850.9U CN201921114850U CN209805531U CN 209805531 U CN209805531 U CN 209805531U CN 201921114850 U CN201921114850 U CN 201921114850U CN 209805531 U CN209805531 U CN 209805531U
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- China
- Prior art keywords
- fan motor
- centrifugal
- rotor shaft
- rotor
- fan
- 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.)
- Expired - Fee Related
Links
- 238000005192 partition Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a fan motor, including fixing base, rotor and stator module, the fixing base includes annular shell, coaxial locating rotor shaft in the annular shell and connection annular shell and rotor shaft one end, be used for the connecting portion of fixed rotor shaft, the rotor passes through bearing coaxial arrangement and is in on the rotor shaft, stator module encircles the periphery that sets up at the rotor and fixes on the internal perisporium of annular shell. The fan motor solves the problems of troublesome assembly, poor assembly precision, poor running stability and high running noise of the existing fan motor. The utility model also discloses a centrifugal fan of including above-mentioned fan motor.
Description
Technical Field
The utility model relates to a fan technical field especially relates to a fan motor and centrifugal fan.
Background
Fan motor is the power unit of fan, its effect is for the rotation of fan blade provides power, current fan motor generally includes the casing, the stator, rotor and rotor shaft, the bottom riveting copper ring structure of rotor shaft, reuse metal gasket and the cooperation of rotor shaft bottom, it has the assembly trouble, the assembly precision is poor, the problem of rotor shaft and stator concentricity uncontrollable, and, because there is the fit clearance between rotor shaft and the copper ring, radial swing can take place for the rotor shaft during operation, the stationarity of operation is poor, simultaneously, axial drunkenness can also take place for the rotor shaft, produce frictional force between the bottom of rotor shaft and the gasket, it is big to cause the motor noise.
And, the motor of current centrifugal fan generally all installs in the outside of the one end of centrifugal wind wheel, and centrifugal wind wheel can keep off the one end of centrifugal wind wheel, can only follow the other end air inlet of centrifugal wind wheel, and consequently, current centrifugal fan air inlet area is less, leads to the wind speed of air inlet big, the noise is big.
SUMMERY OF THE UTILITY MODEL
to the defect among the prior art, the utility model provides a fan motor to solve the problem that current fan motor assembly is troublesome, the assembly precision is poor, the stationarity of operation is poor, the running noise is big. Another object of the present invention is to provide a centrifugal fan including the above fan motor.
In one aspect, the present invention provides a fan motor, including: the fixing seat comprises an annular shell, a rotor shaft coaxially arranged in the annular shell and a connecting part which is connected to one end of the annular shell and one end of the rotor shaft and used for fixing the rotor shaft; a rotor coaxially mounted on the rotor shaft by a bearing; and the stator assembly is arranged around the periphery of the rotor and fixed on the inner peripheral wall of the annular shell.
Further, connecting portion are hollow out construction, the one end that connecting portion were kept away from to annular shell is equipped with the end cover, the middle part of end cover is the opening, and it has a plurality of ventilation holes to distribute on the end cover.
Further, stator module includes stator core, stator core is arc, and the inner circumference equipartition of stator core has a plurality of magnetic poles, every all twine on the magnetic pole has the coil.
Further, the periphery of stator core is provided with the snap ring, the interior week of annular shell is provided with the ka tai, the outer peripheral edges of end cover is provided with downwardly extending's lid edge, the lid is along inserting annular shell, the snap ring card is in between ka tai and the lid edge.
furthermore, the connecting part is composed of a plurality of Z-shaped connecting plates which are annularly arrayed between the annular shell and the rotor shaft.
Further, the annular housing, the rotor shaft and the connecting portion are integrally formed.
On the other hand, the utility model provides a centrifugal fan, including above-mentioned fan motor and centrifugal wind wheel, centrifugal wind wheel is including being the centrifugal blade that the cylinder distributes, connecting respectively the solid fixed ring of blade at centrifugal blade both ends and connecting each the installation baffle of centrifugal blade interlude, fan motor is coaxial to be set up in centrifugal blade, fan motor rotor's terminal surface with installation baffle fixed connection.
furthermore, the blade fixing ring is a conical lantern ring with a large diameter at one end close to the centrifugal blade and a small diameter at one end far away from the centrifugal blade.
The beneficial effects of the utility model are embodied in:
(1) on the one hand, the utility model provides a fan motor's rotor shaft is coaxial to be fixed in annular housing, the rotor passes through the bearing to be fixed on the rotor shaft, wind wheel and fan blade snap-on are in the terminal surface of rotor, when stator subassembly circular telegram, the rotor is direct to pass through wind wheel and fan blade and rotate, for current fan motor, its spare part still less, the assembly is simpler, guarantee the concentricity of stator and rotor more easily, the precision of assembly has been improved, and, because the rotor shaft is fixed, axial float and radial swing can not take place for the rotor shaft, the rotor passes through the bearing to be fixed on the rotor shaft in addition, can ensure the steady rotation of rotor, make its operate steadily, the noise of operation is little. In conclusion, the fan motor solves the problems that the existing fan motor is troublesome in assembly, poor in assembly precision, poor in running stability and high in running noise.
(2) On the other hand, the utility model provides a centrifugal fan's fan motor's structure is small and exquisite, and it is arranged centrifugal wind wheel in, and the terminal surface and the installation baffle of the rotor of fan motor one end are fixed, and fan motor's the other end supports through the support that links to each other with annular housing, and when fan motor drive centrifugal wind wheel rotated, the both ends air inlet that can follow centrifugal wind wheel has improved the area of air inlet, has reduced the wind speed of air inlet, has reduced the noise of air inlet, and the air inlet is more even.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. Throughout the drawings, similar devices or portions are generally identified by similar reference numerals. In the drawings, the various devices or portions are not necessarily drawn to scale.
Fig. 1 is an exploded view of a fan motor according to an embodiment of the present invention;
Fig. 2 is an assembly view of a fan motor according to an embodiment of the present invention;
Fig. 3 is an axial sectional view of a fan motor according to an embodiment of the present invention;
Fig. 4 is a schematic structural view of a fixing base of a fan motor according to an embodiment of the present invention;
Fig. 5 is a schematic structural diagram of a centrifugal fan according to an embodiment of the present invention.
In the drawings, 1 denotes a holder; 11 denotes an annular housing; 111 denotes a chuck table; 12 denotes a rotor shaft; 13 denotes a connecting part; 131 denotes a zigzag link plate; 2 denotes a stator assembly; 21 denotes a stator core; 211 denotes a snap ring; 22 denotes a magnetic pole; 23 denotes a coil; 3 denotes a rotor; 4 denotes a bearing; 5 denotes an end cap; 51 denotes an opening; 52 denotes a vent hole; 53 denotes a lid edge; 6 denotes a centrifugal wind wheel; 61 denotes a centrifugal blade; 62 denotes a blade fixing ring; and 63, mounting a partition.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the patent is not limited thereby.
As shown in fig. 1 to 4, embodiments of the present invention provide a fan motor, which may be an electric fan, a tower fan, an air conditioner fan, or the like.
This fan motor includes fixing base 1, stator module 2 and rotor 3, fixing base 1 includes annular housing 11, coaxial rotor shaft 12 and the connection in annular housing 11 and rotor shaft 12 one end, a connecting portion 13 for fixing rotor shaft 12 of locating in annular housing 11, rotor 3 passes through bearing 4 coaxial arrangement on rotor shaft 12, stator module 2 encircles the periphery that sets up at rotor 3 and fixes on the internal perisporium of annular housing 11.
This fan motor's rotor shaft 12 is coaxial to be fixed in annular housing 11, rotor 3 passes through bearing 4 to be fixed on rotor shaft 12, wind wheel and fan blade snap-on are in the terminal surface of rotor 3, when stator subassembly 2 circular telegram, rotor 3 directly passes through wind wheel and fan blade and rotates, for current fan motor, its spare part is still less, the assembly is simpler, guarantee stator and rotor 3's concentricity more easily, the precision of assembly has been improved, and, because rotor shaft 12 is fixed, axial float and radial oscillation can not take place for rotor shaft 12, rotor 3 passes through bearing 4 to be fixed on rotor shaft 12 in addition, can ensure rotor 3's steady rotation, make its operate steadily, the noise of operation is little. In conclusion, the fan motor solves the problems that the existing fan motor is troublesome in assembly, poor in assembly precision, poor in running stability and high in running noise.
Referring to fig. 4, the connecting portion 13 is a hollow structure. Specifically, the connecting portion 13 of the present embodiment is composed of a plurality of zigzag connecting plates 131 annularly arranged between the annular housing 11 and the rotor shaft 12, so that a hollow structure can be formed, and the stability of the connecting portion 13 can be ensured, thereby ensuring the stability of the rotor shaft 12. The ring housing 11, the rotor shaft 12 and the connecting portion 13 of the present embodiment are integrally formed to improve the accuracy of manufacturing thereof, while improving the structural integrity and stability. Referring to fig. 1, 2 and 3, an end cover 5 is disposed at one end of the annular housing 11 away from the connecting portion 13, an opening 51 is formed in the middle of the end cover 5 to expose an end surface of the rotor 3, and a plurality of vent holes 52 are distributed on the end cover 5. Through setting up end cover 5, can protect stator module 2 in the fixing base 1, provide the safety guarantee. When the rotor 3 is connected with the wind wheel and the fan blades to rotate, the wind wheel and the fan blades drive airflow to flow, and air convection is formed due to the fact that the connecting portions 13 are of hollow structures and the vent holes 52 are distributed in the end cover 5, and therefore automatic heat dissipation and cooling inside the motor are achieved.
Referring to fig. 1 and 3, stator module 2 includes stator core 21, and stator core 21 is arc, and the interior circumference equipartition of stator core 21 has a plurality of magnetic poles 22, all twines coil 23 on every magnetic pole 22, and coil 23 adopts the individual layer formula of lap winding rule, and the rule is convenient, and coil 23 insulating convenient operation.
As a specific stator core 21 mounting structure, referring to fig. 1 and 3, a snap ring 211 is disposed on an outer periphery of a stator core 21, a clamping table 111 is disposed on an inner periphery of an annular housing 11, a cover edge 53 extending downward is disposed on an outer periphery of an end cover 5, the cover edge 53 is inserted into the annular housing 11, the snap ring 211 is clamped between the clamping table 111 and the cover edge 53, when the stator core 21 is mounted, the stator core 21 is directly embedded into the annular housing 11, and the end cover 5 is covered, so that the stator core 21 can be fixedly mounted, and the assembly is very convenient.
as shown in fig. 5, the embodiment of the present invention further provides a centrifugal fan, including above-mentioned fan motor and centrifugal wind wheel 6, centrifugal wind wheel 6 includes centrifugal blade 61 that is the cylinder distribution, connects at the blade fixing ring 62 at each centrifugal blade 61 both ends and connects at the installation baffle 63 of each centrifugal blade 61 interlude, and the fan motor is coaxial to be set up in centrifugal blade 61, fan motor rotor 3's terminal surface and installation baffle 63 fixed connection.
Above-mentioned fan motor's structure is small and exquisite, it is arranged in centrifugal wind wheel 6, the terminal surface and the installation baffle 63 of rotor 3 of fan motor one end are fixed, fan motor's the other end supports through the support that links to each other with annular housing 11, when fan motor drive centrifugal wind wheel 6 rotates, can follow the both ends air inlet of centrifugal wind wheel 6, the area of having improved the air inlet, the wind speed of having reduced the air inlet, the noise of having reduced the air inlet, the air inlet is more even.
The vane fixing ring 62 is a tapered collar having a large diameter at one end close to the centrifugal vane 61 and a small diameter at the other end far from the centrifugal vane 61. The centrifugal fan is used for feeding air from two ends of the centrifugal wind wheel 6 and discharging air from the space between the centrifugal blades 61, and the blade fixing ring 62 is designed into the shape of a tapered lantern ring, so that the blade fixing ring 62 can squeeze air flow between the centrifugal blades 61 towards the middle during air discharging, the air flow is prevented from escaping from the end parts of the centrifugal blades 61, the wind pressure type centrifugal wind wheel 6 is formed, and the air speed of the discharged air is further improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. A fan motor, comprising:
The fixing seat comprises an annular shell, a rotor shaft coaxially arranged in the annular shell and a connecting part which is connected to one end of the annular shell and one end of the rotor shaft and used for fixing the rotor shaft;
A rotor coaxially mounted on the rotor shaft by a bearing;
And the stator assembly is arranged around the periphery of the rotor and fixed on the inner peripheral wall of the annular shell.
2. The fan motor according to claim 1, wherein the connecting portion is a hollow structure, an end cap is disposed at an end of the annular housing away from the connecting portion, an opening is disposed at a middle portion of the end cap, and a plurality of ventilation holes are distributed on the end cap.
3. The fan motor according to claim 2, wherein the stator assembly includes a stator core, the stator core is arc-shaped, a plurality of magnetic poles are uniformly distributed on an inner circumference of the stator core, and a coil is wound on each of the magnetic poles.
4. The fan motor according to claim 3, wherein a snap ring is provided on an outer circumference of the stator core, a catching ledge is provided on an inner circumference of the annular housing, a cover rim extending downward is provided on an outer circumference of the end cover, the cover rim is inserted into the annular housing, and the snap ring is caught between the catching ledge and the cover rim.
5. The fan motor according to claim 2, wherein the connection portion is composed of a plurality of zigzag-shaped connection plates arranged in an annular array between the annular housing and the rotor shaft.
6. the fan motor according to claim 5, wherein the ring-shaped housing, the rotor shaft, and the connecting portion are integrally formed.
7. A centrifugal fan, characterized by comprising the fan motor and the centrifugal wind wheel according to any one of claims 1 to 6, wherein the centrifugal wind wheel comprises centrifugal blades distributed in a cylindrical shape, blade fixing rings connected to two ends of each centrifugal blade and a mounting partition plate connected to the middle section of each centrifugal blade, the fan motor is coaxially arranged in the centrifugal blades, and the end surface of the rotor of the fan motor is fixedly connected with the mounting partition plate.
8. The centrifugal fan as claimed in claim 7, wherein the blade retaining ring is a tapered collar having a larger diameter at an end proximal to the centrifugal blades and a smaller diameter at an end distal from the centrifugal blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921114850.9U CN209805531U (en) | 2019-07-16 | 2019-07-16 | Fan motor and centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921114850.9U CN209805531U (en) | 2019-07-16 | 2019-07-16 | Fan motor and centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209805531U true CN209805531U (en) | 2019-12-17 |
Family
ID=68817941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921114850.9U Expired - Fee Related CN209805531U (en) | 2019-07-16 | 2019-07-16 | Fan motor and centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209805531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224518A (en) * | 2019-07-16 | 2019-09-10 | 宋振明 | A kind of fan motor and centrifugal blower |
-
2019
- 2019-07-16 CN CN201921114850.9U patent/CN209805531U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224518A (en) * | 2019-07-16 | 2019-09-10 | 宋振明 | A kind of fan motor and centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 |