CN216241393U - Fan blade fixing structure of brushless fan - Google Patents
Fan blade fixing structure of brushless fan Download PDFInfo
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- CN216241393U CN216241393U CN202122463035.7U CN202122463035U CN216241393U CN 216241393 U CN216241393 U CN 216241393U CN 202122463035 U CN202122463035 U CN 202122463035U CN 216241393 U CN216241393 U CN 216241393U
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- ball bearing
- motor shaft
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- fixing ring
- bearing
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Abstract
The utility model discloses a fan blade fixing structure of a brushless fan, which comprises a casing, an iron core, a motor shaft, a front ball bearing, a rear bearing seat, a magnet, fan blades and a fixing ring, wherein the iron core is arranged in the casing, the magnet is arranged on the motor shaft, the magnet and the motor shaft are positioned in the iron core, the rear bearing seat is arranged at the rear end of the casing, the front ball bearing is arranged at the front end of the casing, the rear ball bearing is arranged at the rear bearing seat, the front end and the rear end of the motor shaft in the axial direction are respectively connected with the front ball bearing and the rear ball bearing, the fan blades and the fixing ring are respectively connected with the front end of the motor shaft, the fixing ring and the motor shaft are in interference fit, the fan blades are positioned between the fixing ring and the front ball bearing, and the fixing ring is connected with the fan blades. Through this kind of mechanical cooperation mode, solve under high-speed rotation and high temperature are ageing, the glue inefficacy, the risk of flabellum departure also solves glue simultaneously and gets into the inside risk of bearing adjacent with the flabellum, improves the reliability of product greatly.
Description
Technical Field
The utility model relates to the technical field of brushless fans, in particular to a fan blade fixing structure of a brushless fan.
Background
The existing high-rotation-speed brushless fan is provided with fan blades at the front end of a motor, and the fan blades are generally fixed in a glue bonding mode. Under high-speed rotation and high-temperature aging, the risk that glue fails and the fan blades fly out exists, and meanwhile, the risk that the glue enters the inside of the bearing adjacent to the fan blades also exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a fan blade fixing structure of a brushless fan, which is characterized in that a fixing ring is arranged to be fixed with a fan blade, so that the risks of glue failure and fan blade flying out under high-speed rotation and high-temperature aging are solved, the risk of the glue entering the inside of a bearing adjacent to the fan blade is also solved, and the reliability of a product is greatly improved.
The utility model provides a fan blade fixing structure of a brushless fan, which comprises a casing, an iron core, a motor shaft, a front ball bearing, a rear bearing seat, a magnet, fan blades and a fixing ring, wherein the iron core is arranged in the casing, the magnet is arranged on the motor shaft, the magnet and the motor shaft are positioned in the iron core, the rear bearing seat is arranged at the rear end of the casing, the front ball bearing is arranged at the front end of the casing, the rear ball bearing is arranged at the rear bearing seat, the front end and the rear end of the motor shaft in the axial direction are respectively connected with the front ball bearing and the rear ball bearing, the fan blades and the fixing ring are respectively connected with the front end of the motor shaft, the fixing ring and the motor shaft are in interference fit, the fan blades are positioned between the fixing ring and the front ball bearing, and the fixing ring is connected with the fan blades.
Furthermore, the end face of the fixing ring and the fan blades are fixed through laser welding. Through the mechanical matching mode, the fan blades can be firmly connected with the motor shaft, so that the problem that the fan blades fly out due to the fact that glue is aged at high speed and high temperature and loses efficacy when the motor shaft is connected with the fan blades through the glue is solved.
Further, the fan blade is provided with an installation groove, and the fixing ring is contained in the installation groove. The mounting groove is formed to accommodate the fixing ring, so that the overall axial length of the fan can be reduced.
Further, brushless fan's flabellum fixed knot constructs still includes the shield, the shield is connected with the rear axle bearing, and back ball bearing is located between shield and the rear axle bearing. Through setting up the shield, place the dust and get into the bearing, improve the motor life-span.
Furthermore, the material of the casing is zinc alloy or aluminum alloy.
Furthermore, the rear bearing seat is made of PPS + GF, zinc alloy or aluminum alloy.
Furthermore, the front end of the shell is provided with a bearing chamber, and a front ball bearing is arranged in the bearing chamber.
Further, the rear bearing seat is fixed with the machine shell through glue. The rear ball bearing is positioned through the rear bearing seat, and the coaxiality of the front bearing and the rear bearing is guaranteed.
Compared with the prior art, the fan blade fixing structure of the brushless fan is fixed with the fan blades through the fixing ring, the end faces of the fixing ring and the fan blades are fixed through laser welding, glue does not need to be added through the mechanical matching mode, the risk that the glue fails and the fan blades fly out under high-speed rotation and high-temperature aging is solved, meanwhile, the risk that the glue enters the inside of the bearing adjacent to the fan blades is also solved, and the reliability of a product is greatly improved.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.
Fig. 1 is a sectional view of a fan blade fixing structure of a brushless fan according to the present invention.
The motor comprises a machine shell 1, an iron core 2, a motor shaft 3, a front ball bearing 4, a rear ball bearing 5, a rear bearing seat 6, a magnet 7, fan blades 8, a mounting groove 81, a fixing ring 9 and a dust cover 10.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and detailed description. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Examples
As shown in fig. 1, the present invention provides a fan blade fixing structure of a brushless fan, including a casing 1, an iron core 2, a motor shaft 3, a front ball bearing 4, a rear ball bearing 5, a rear bearing seat 6, a magnet 7, fan blades 8, a fixing ring 9, and a dust cover 10.
As shown in fig. 1, the iron core is installed in the casing, the magnet is installed on the motor shaft, the magnet and the motor shaft are located in the iron core, the rear bearing seat is installed at the rear end of the casing, the front ball bearing is installed at the front end of the casing, the rear ball bearing is installed at the rear bearing seat, the front end and the rear end of the motor shaft in the axial direction are respectively connected with the front ball bearing and the rear ball bearing, the fan blades and the fixing ring are respectively connected with the front end of the motor shaft, the fixing ring and the motor shaft are in interference fit, the fan blades are located between the fixing ring and the front ball bearing, and the end face of the fixing ring and the fan blades are fixed through laser welding. Through the mechanical matching mode, the fan blades can be firmly connected with the motor shaft, so that the problem that the fan blades fly out due to the fact that glue is aged at high speed and high temperature and loses efficacy when the motor shaft is connected with the fan blades through the glue is solved.
As shown in fig. 1, in this embodiment, the material of the casing is zinc alloy or aluminum alloy, a bearing chamber is disposed at the front end of the casing, and the front ball bearing is installed in the bearing chamber. The fan blades are provided with mounting grooves 81, and the fixing rings are accommodated in the mounting grooves. The mounting groove is formed to accommodate the fixing ring, so that the overall axial length of the fan can be reduced.
As shown in fig. 1, the rear bearing seat is made of PPS + GF, zinc alloy or aluminum alloy, the rear bearing seat is fixed with the casing through glue, and the rear ball bearing is positioned through the rear bearing seat, so that the coaxiality of the front bearing and the rear bearing is ensured. The dust cover is connected with the rear bearing seat, and the rear ball bearing is located between the dust cover and the rear bearing seat. Through setting up the shield, place the dust and get into the bearing, improve the motor life-span.
Compared with the prior art, the fan blade fixing structure of the brushless fan is fixed with the fan blades through the fixing ring, the end faces of the fixing ring and the fan blades are fixed through laser welding, the risk that glue fails and the fan blades fly out under high-speed rotation and high-temperature aging is solved through the mechanical matching mode, the risk that the glue enters the inside of the bearing adjacent to the fan blades is also solved, and the reliability of a product is greatly improved.
It should be noted that the description of the present invention and the accompanying drawings illustrate preferred embodiments of the present invention, but the present invention may be embodied in many different forms and is not limited to the embodiments described in the present specification, which are provided as additional limitations to the present invention and to provide a more thorough understanding of the present disclosure. Moreover, the above technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope of the present invention described in the specification; further, modifications and variations will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The utility model provides a brushless fan's flabellum fixed knot constructs, a serial communication port, which comprises a housing, the iron core, the motor shaft, preceding ball bearing, back ball bearing, the rear bearing seat, the magnetite, flabellum and retainer plate, the iron core is installed in the casing, the magnetite is installed on the motor shaft, magnetite and motor shaft are located the iron core, the rear end in the casing is installed to the rear bearing seat, preceding ball bearing is installed in the front end of casing, back ball bearing installs in the rear bearing seat, both ends are connected with preceding ball bearing and back ball bearing respectively around the axial of motor shaft, flabellum and retainer plate are connected with the front end of motor shaft respectively, be interference fit between retainer plate and the motor shaft, the flabellum is located between retainer plate and the preceding ball bearing, the retainer plate is connected with the flabellum.
2. The fan blade fixing structure of the brushless fan according to claim 1, wherein the end surface of the fixing ring and the fan blade are fixed by laser welding.
3. The structure of claim 1, wherein the fan blade has a mounting groove, and the fixing ring is received in the mounting groove.
4. The brushless fan blade fixing structure of claim 1, further comprising a dust cap connected to the rear bearing seat, wherein the rear ball bearing is located between the dust cap and the rear bearing seat.
5. The fan blade fixing structure of the brushless fan as claimed in claim 1, wherein the housing is made of zinc alloy or aluminum alloy.
6. The fan blade fixing structure of the brushless fan according to claim 1, wherein the rear bearing seat is made of PPS + GF, zinc alloy or aluminum alloy.
7. The structure of claim 1, wherein a bearing chamber is formed at a front end of the housing, and the front ball bearing is installed in the bearing chamber.
8. The fan blade fixing structure of the brushless fan as claimed in claim 1, wherein the rear bearing seat is fixed to the housing by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122463035.7U CN216241393U (en) | 2021-10-12 | 2021-10-12 | Fan blade fixing structure of brushless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122463035.7U CN216241393U (en) | 2021-10-12 | 2021-10-12 | Fan blade fixing structure of brushless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216241393U true CN216241393U (en) | 2022-04-08 |
Family
ID=80986037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122463035.7U Active CN216241393U (en) | 2021-10-12 | 2021-10-12 | Fan blade fixing structure of brushless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216241393U (en) |
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2021
- 2021-10-12 CN CN202122463035.7U patent/CN216241393U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230620 Address after: 516000 Plant 1, No. 6, Shiquanling Road, Chenjiang Street, Zhongkai Hi tech Zone, Huizhou, Guangdong Patentee after: Huizhou Longde Technology Co.,Ltd. Address before: 518000 2-4 / F, building e, Baifuli Industrial Park, Tongsheng Shanghenglang Industrial Zone, Tongsheng community, Dalang street, Longhua New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN LONGDE TECHNOLOGY Co.,Ltd. |