CN211924584U - Air duct and fan blade assembling structure of small high-speed direct-current fan - Google Patents
Air duct and fan blade assembling structure of small high-speed direct-current fan Download PDFInfo
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- CN211924584U CN211924584U CN202020598180.9U CN202020598180U CN211924584U CN 211924584 U CN211924584 U CN 211924584U CN 202020598180 U CN202020598180 U CN 202020598180U CN 211924584 U CN211924584 U CN 211924584U
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Abstract
The utility model discloses a dryer fan blade assembly structure of small-size high-speed direct current fan, including dryer body (1) and impeller (2), dryer body (1) includes stack shell (11), is equipped with tube-shape stator module installation room (12) in stack shell (11), is provided with a plurality of pieces of annular distributed axial stator vane (13) along the air axial flow direction between the outer wall of stator module installation room (12) and the inner wall of stack shell (11), and the inlet air end in dryer body (1) is equipped with bearing chamber (14) that meets with stator module installation room (12), and bearing chamber (14) are outside salient; the impeller (2) comprises a hub (21) and blades (22), an inner groove (211) is formed in the hub (21), and the bearing chamber (14) is wrapped by the hub (21). The utility model has the advantages of can effectively shorten the whole length of fan, use the utility model discloses the fan of structure can effectively alleviate operation in-process complete machine casing and produce the vibration and the bad experience that the numb hand appears.
Description
Technical Field
The utility model relates to an assembly structure of fan dryer and fan blade, especially a dryer fan blade assembly structure of small-size high-speed direct current fan.
Background
The small high-speed brushless direct current motor opens the market of hair dryers in the bamboo-breaking situation, and many advantages of the small high-speed brushless direct current motor, such as high rotating speed, low power, large air volume and the like, are also reasons for rolling over 95% of the traditional hair dryer motors. At present, the motor is developed more and more mature, the components such as the rotor component and the stator component have more severe standards in size, which is also a big reason why the development of the small-sized direct current fan has difficult breakthrough in size so far. Although the impeller of present fan all installs in the dryer, the impeller does not have any cooperation relation between the impeller and the dryer in essence, and the impeller is located the inlet air end of dryer, installs in the pivot, and stator module and the epaxial magnet steel of pivot then generally are located the air-out one end of dryer, and the outside of dryer is arranged in easily to stator module's tail end, has leaded to the whole length of fan longer. Therefore, it is necessary to develop an air duct and blade assembly structure of a small-sized high-speed dc fan to shorten the overall length of the fan.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dryer fan blade assembly structure of small-size high-speed direct current fan. It has the advantage that can effectively shorten the whole length of fan, uses the utility model discloses the fan of structure can effectively alleviate operation in-process complete machine casing and produce the vibration and the bad experience that the hand numbness appears.
The technical scheme of the utility model: the air duct blade assembly structure of the small-sized high-speed direct-current fan comprises an air duct body and an impeller, wherein the air duct body comprises a duct body, a cylindrical stator assembly installation chamber is arranged in the duct body, a plurality of annular axial guide vanes are arranged between the outer wall of the stator assembly installation chamber and the inner wall of the duct body along the air axial flow direction, a bearing chamber connected with the stator assembly installation chamber is arranged at the air inlet end in the air duct body, and the bearing chamber protrudes outwards; the impeller comprises a hub and blades, an inner groove is formed in the hub, and the hub wraps the bearing chamber.
In the air duct and blade assembly structure of the small-sized high-speed direct current fan, the outer end face of the impeller is flush with the end face of the air inlet end of the air duct body.
In the air duct and fan blade assembly structure of the small-sized high-speed direct current fan, the wall of the stator assembly installation chamber is provided with a plurality of clamping seams.
In the air duct and fan blade assembly structure of the small-sized high-speed direct current fan, the inflow section of the axial guide vane is an arc guide plate, and the outflow section is a plane guide plate.
In the air duct and blade assembly structure of the small-sized high-speed direct-current fan, the inner groove on the hub has the same outline shape as the bearing chamber, and the size of the inner groove is 105% -110% of the outline size of the bearing chamber.
Compared with the prior art, the utility model discloses a be equipped with the stator module installation room of tube-shape inside the dryer body for the installation of stator module, make the installation of stator module can be closer to the air inlet end of dryer body, shorten its length that extends to the dryer body outside, can effectively shorten the whole length of fan, the design of stator module installation room makes the magnet steel of the stator module of follow-up assembly and rotor subassembly can be arranged in the position that is closer to the air inlet end of fan, adopt the fan of the utility model discloses structure can effectively alleviate the complete machine casing in the operation process and produce the vibration and the bad experience that the hand numbness appears, has also reduced fan running noise; furthermore, the air inlet end in the air duct body is provided with a bearing chamber connected with the stator assembly mounting chamber and used for mounting a bearing, the bearing chamber protrudes outwards, and the bearing chamber is wrapped by the hub through the design of the impeller hub, so that the overall length of the fan is further shortened.
To sum up, the utility model has the advantages of can effectively shorten the whole length of fan, use the utility model discloses the fan of structure can effectively alleviate operation in-process complete machine casing and produce the vibration and the bad experience that the numb hand appears.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention;
fig. 2 is a sectional view of the internal structure of the present invention;
fig. 3 is a schematic structural view of a wind barrel body;
fig. 4 is a sectional view of the internal structure of the air duct body;
fig. 5 is a three-dimensional exploded view of the present invention.
Reference numerals: the air duct comprises a duct body 1, an impeller 2, a duct body 11, a stator assembly mounting chamber 12, an axial guide vane 13, a bearing chamber 14, a hub 21, a blade 22, a clamping seam 121 and an inner groove 211.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Example (b): the structure of the air duct blade assembly structure of the small-sized high-speed direct current fan is shown in figures 1 to 5, and comprises an air duct body 1 and an impeller 2, wherein the air duct body 1 comprises a duct body 11, a cylindrical stator assembly installation chamber 12 is arranged in the duct body 11 and is used for installing the stator assembly, so that the installation of the stator assembly can be closer to an air inlet end of the air duct body 1, the length of the stator assembly extending to the outside of the air duct body 1 is shortened, the overall length of the fan can be effectively shortened, the design of the stator assembly installation chamber 12 enables the magnetic steel of the subsequently assembled stator assembly and the rotor assembly to be arranged at a position closer to the air inlet end of the fan, the fan adopting the structure of the utility model can effectively relieve the bad experience of a hemp hand caused by the vibration of a whole machine shell in the operation process, the operation noise of the fan is also reduced, a plurality of axial guide vanes 13 which are annularly distributed along the air axial flow direction are, a bearing chamber 14 connected with the stator assembly mounting chamber 12 is arranged at the air inlet end in the air duct body 1 and used for mounting a bearing, and the bearing chamber 14 protrudes outwards; the impeller 2 comprises a hub 21 and blades 22, an inner groove 211 is formed in the hub 21, the bearing chamber 14 is wrapped by the hub 21, and the overall length of the fan is further shortened.
The blades 22 of the impeller 2 of the utility model are uniformly distributed on the outer cylindrical surface of the hub 21.
The outer end face of the impeller 2 is flush with the end face of the air inlet end of the air duct body 1, namely the hub 21 of the impeller 2 is not convex, and the length of the fan is strictly controlled.
The wall of the stator assembly installation chamber 12 is provided with a plurality of clamping slots 121 for clamping the stator core.
The section of intaking of axial stator 13 is arc baffle, and the section of effluenting is the plane baffle, and to a great extent has promoted the aerodynamic efficiency of fan.
The inner groove 211 on the hub 21 has the same outline shape as the bearing chamber 14, and the size of the inner groove 211 is 108% of the outline size of the bearing chamber 14, which allows enough clearance to be left between the hub 21 and the bearing chamber 14, and mutual interference cannot occur during the operation of the fan.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (5)
1. Dryer fan blade assembly structure of small-size high-speed direct current fan, its characterized in that: the air duct comprises an air duct body (1) and an impeller (2), wherein the air duct body (1) comprises a duct body (11), a cylindrical stator assembly mounting chamber (12) is arranged in the duct body (11), a plurality of axial guide vanes (13) which are distributed annularly are arranged between the outer wall of the stator assembly mounting chamber (12) and the inner wall of the duct body (11) along the air axial flow direction, a bearing chamber (14) connected with the stator assembly mounting chamber (12) is arranged at the air inlet end in the air duct body (1), and the bearing chamber (14) protrudes outwards; the impeller (2) comprises a hub (21) and blades (22), an inner groove (211) is formed in the hub (21), and the bearing chamber (14) is wrapped by the hub (21).
2. The dryer fan blade assembly structure of small-size high-speed direct current fan of claim 1, characterized in that: the outer end face of the impeller (2) is flush with the end face of the air inlet end of the air duct body (1).
3. The dryer fan blade assembly structure of small-size high-speed direct current fan of claim 1, characterized in that: the wall of the stator assembly installation chamber (12) is provided with a plurality of clamping seams (121).
4. The dryer fan blade assembly structure of small-size high-speed direct current fan of claim 1, characterized in that: the inflow section of the axial guide vane (13) is an arc guide plate, and the outflow section is a plane guide plate.
5. The dryer fan blade assembly structure of small-size high-speed direct current fan of claim 1, characterized in that: the inner groove (211) on the hub (21) is the same as the outline shape of the bearing chamber (14), and the size of the inner groove (211) is 105-110% of the outline size of the bearing chamber (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598180.9U CN211924584U (en) | 2020-04-20 | 2020-04-20 | Air duct and fan blade assembling structure of small high-speed direct-current fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020598180.9U CN211924584U (en) | 2020-04-20 | 2020-04-20 | Air duct and fan blade assembling structure of small high-speed direct-current fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924584U true CN211924584U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020598180.9U Active CN211924584U (en) | 2020-04-20 | 2020-04-20 | Air duct and fan blade assembling structure of small high-speed direct-current fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211924584U (en) |
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2020
- 2020-04-20 CN CN202020598180.9U patent/CN211924584U/en active Active
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