CN201252460Y - Improved structure of a brushless motor rotor - Google Patents
Improved structure of a brushless motor rotor Download PDFInfo
- Publication number
- CN201252460Y CN201252460Y CNU2008201191862U CN200820119186U CN201252460Y CN 201252460 Y CN201252460 Y CN 201252460Y CN U2008201191862 U CNU2008201191862 U CN U2008201191862U CN 200820119186 U CN200820119186 U CN 200820119186U CN 201252460 Y CN201252460 Y CN 201252460Y
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- CN
- China
- Prior art keywords
- steel sheet
- silicon steel
- slotted eye
- rotor
- clamping
- 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
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Abstract
The utility model discloses an improved structure of a brushless motor rotor, which enable a rotor to have better practical effects. The improved structure of a brushless motor rotor is mainly characterized in that a plurality of groove openings are arranged on the silicon steel sheet of the rotor, flanges are formed on the groove openings, a clamping block with embedded grooves on both sides is arranged and can be embedded to the flanges of the groove openings, so as to enable the clamping block to clamp the magnet on the silicon steel sheet so as to achieve the effect of firm positioning without adhesive glue, a balance weight block can be arranged through the groove openings to achieve the effects of gravity center balance during the adjustment of the rotation of the rotor, and the effects of ventilation and heat radiating can be enhanced through the groove openings.
Description
Technical field
The utility model relates to the motor rotor field, particularly relates to a kind of brushless motor rotor structure and improves.
Background technology
The structure of the rotor 10 of existing brushless motor, all as Fig. 1, Fig. 2, shown in Figure 3, it is superimposed to be that multi-disc silicon steel sheet 12 is established in 10 groups of rotating shafts, and silicon steel sheet 12 is separated the utmost point position that is several protrusions, each is established magnet 13 on extremely and forms several N, the S utmost point, and its bilateral limit is again with side cover 14 sealed location; Above-mentioned structure has following shortcoming in fact:
(1) combination of its magnet 13 and silicon steel sheet 12 is to adopt " viscose glue " sticking fixed, thus have when using with the passing of time, the viscose glue heat damage, and the generation viscose glue can't glue fixed problem again, magnet promptly can come off.
(2) silicon steel sheet does not have other slotted eye, and multi-disc silicon steel sheet 12 is equal to " solid " when superimposed, and therefore, it can't provide inner ventilation, and radiating effect is relatively poor.
(3) its silicon steel sheet 12 nothings are provided with balancing weight, and when one side weight was light, whole rotation must have the problem of " center of gravity is unbalanced ", influences stability of rotation.
Summary of the invention
The purpose of this utility model provides a kind of brushless motor rotor structure and improves, its be the rotor silicon steel sheet is set as have slotted eye, flange, establish clamping and fixing block and must organize, clamping and fixing block must press from both sides the magnet of deciding on the silicon steel sheet, and can must adjust the effect of rotation gravity balance in the slotted eye for balancing weight is set, slotted eye also can be promoted result of ventilating heat dissipation.
For achieving the above object, the utility model provides a kind of brushless motor rotor structure to improve, wherein: the multi-disc silicon steel sheet is established in the rotating shaft of rotor, establish several pieces magnet on the silicon steel sheet, each silicon steel sheet is set as has several slotted eyes, and each both sides, slotted eye upper end forms has flange, and be provided with several clamping and fixing blocks, each clamping and fixing block is set as the bilateral embeded slot that has, and the embeded slot of clamping and fixing block just can be embedded in flange, and the periphery of magnet of silicon steel sheet, and clamping and fixing block schedules on the silicon steel sheet magnetic catch; In the slotted eye of silicon steel sheet, and can supply balancing weight is set, and must adjust the balance of rotation center of gravity.
In a preferred embodiment of the present utility model, the both-end of this rotor silicon steel sheet is provided with the side cover locking, and its side cover is set as has several through holes, and through hole communicates in the silicon steel sheet slotted eye, and through hole can be gone in the slotted eye of silicon steel sheet for circulation of air, forms result of ventilating heat dissipation.
Because adopt above technical scheme, the beneficial effects of the utility model are:
(1) when rotor has the problem of " center of gravity off-centre ", the rotor high-speed rotation will inevitably produce the existing picture of " pause and transition in rhythm or melody ", so will influence the smooth and easy of rotation and have bigger noise.And, the utility model can provide and change " center of gravity is unbalanced " problem, specifically is the balancing weight that required weight is set in the slotted eye of one side of needs, get final product the effect of average both sides center of gravity, and can improve the center of gravity equilibrium in when rotation, so the utility model can provide rotor to adjust the effect of gravity balance.
(2) side cover of the present utility model is provided with through hole, silicon steel sheet is provided with slotted eye, but and allowing air flow forms result of ventilating heat dissipation, in other words, the utility model can ventilate at silicon steel sheet inside (slotted eye), and splendid silicon steel sheet radiating effect.
Description of drawings
Fig. 1 is the constructing stereo exploded view of prior art;
Fig. 2 is the combination side view cutaway drawing of prior art;
Fig. 3 is the combination elevational cross-sectional view of prior art;
Fig. 4 is a constructing stereo exploded view of the present utility model;
Fig. 5 is a combination stereo appearance figure of the present utility model;
Fig. 6 is a combination side view cutaway drawing of the present utility model;
Fig. 7 is a combination elevational cross-sectional view of the present utility model;
Fig. 8 is a slotted eye establishing pouring weight side view cutaway drawing of the present utility model;
Fig. 9 is the two-part embodiment stereogram that is of the present utility model.
The main element symbol description:
10,20 rotors, 24 flanges
11,21 rotating shafts, 30 clamping and fixing blocks
12,22 silicon steel sheets, 31 embeded slots
13,25 magnet, 27 through holes
14,26 side covers, 40 balancing weights
23 slotted eyes
Embodiment
See also Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, multi-disc silicon steel sheet 22 is established in the rotating shaft 21 of rotor 20, establish several pieces magnet 25 on the silicon steel sheet 22, each silicon steel sheet 22 is set as has several slotted eyes 23, each both sides, slotted eye 23 upper end forms has flange 24, and is provided with several clamping and fixing blocks 30, and each clamping and fixing block 30 is set as the bilateral embeded slot 31 that has, the embeded slot 31 of clamping and fixing block 30 just can be embedded in flange 24, and the periphery of magnet 25 of silicon steel sheet 22, and clamping and fixing block 30 make magnet 25 folders on silicon steel sheet 22; In the slotted eye 23 of silicon steel sheet 22, and can supply balancing weight 40 (as shown in Figure 8) is set, and must adjust the balance of rotation center of gravity again; In addition, the both-end of rotor 20 silicon steel sheets 22 is provided with side cover 26 lockings, and its side cover 26 is set as has several through holes 27, and through hole communicates in the silicon steel sheet slotted eye, and through hole 27 can be gone in the slotted eye 23 of silicon steel sheet 22 for circulation of air, forms result of ventilating heat dissipation.
As Fig. 4, shown in Figure 6, each magnet 25 magnetic pole correspondence position of each silicon steel sheet 22 of the utility model are established the slotted eye 23 like the shape of falling C, be formed with flange 24, therefore, during assembling magnet 25, only need bilateral embeded slot 31 corresponding slotted eye 23 flanges 24, magnet 25 peripheries, give pushing in the slotted eye 23, can form the effect that clamping and fixing block 30 is embedded in flange 24, folder fixed magnet 25 a plurality of clamping and fixing blocks 30.In other words, magnet 25 of the present utility model needn't adopt " viscose glue " sticking fixed, does not have the problem that " viscose glue is rotten " comes off, and reaches in conjunction with firm, durable effect.
In addition, clamping and fixing block 30 of the present utility model can adopt summary rubber-like sizing material to make, and can get telescopic resilience and promote the fixed effect of folder.
The utility model silicon steel sheet 22 is established slotted eye 23, has following effect, advantage:
(1) when rotor has the problem of " center of gravity off-centre ", the rotor high-speed rotation will inevitably produce the existing picture of " pause and transition in rhythm or melody ", so will influence the smooth and easy of rotation and have bigger noise.And, the utility model can provide and change " center of gravity is unbalanced " problem, as shown in Figure 8, the balancing weight 40 of required weight can be set in one side of needs slotted eye 23, get final product the effect of average both sides center of gravity, and can improve the center of gravity equilibrium in when rotation, gravity balance when this establishes lead adjustment rotation as " automotive rim ", the utility model also can provide rotor 20 to adjust the effect of gravity balances.
(2) as shown in Figure 7, side cover 26 is provided with through hole 27, silicon steel sheet 22 is provided with slotted eye 23, but and allowing air flow forms result of ventilating heat dissipation, in other words, the utility model can ventilate at silicon steel sheet 22 inside (slotted eye 23), and splendid silicon steel sheet 22 radiating effects.
In addition, according to above-mentioned technical scheme, the utility model also may be implemented in relatively large motor, as shown in Figure 9, pole magnet 25 is set as " two-part ", two sections magnet 25 is irregular staggered correspondence, and clamping and fixing block 30 also is irregular staggered correspondence, also can get the effect of " clamping and fixing block 30 folder fixed magnets 25 ", " silicon steel sheet 22 slotted eyes 23 are for balancing weight, ventilation and heat are set " equally.
Claims (2)
1, a kind of brushless motor rotor structure improves, it is characterized in that: the multi-disc silicon steel sheet is established in the rotating shaft of rotor, establish several pieces magnet on the silicon steel sheet, each silicon steel sheet is set as has several slotted eyes, each both sides, slotted eye upper end forms has flange, and is provided with several clamping and fixing blocks, and each clamping and fixing block is set as the bilateral embeded slot that has, the embeded slot of clamping and fixing block just can be embedded in flange, and the periphery of magnet of silicon steel sheet, and clamping and fixing block schedules on the silicon steel sheet magnetic catch; In the slotted eye of silicon steel sheet, and can supply balancing weight is set, and must adjust the balance of rotation center of gravity.
2, brushless motor rotor structure according to claim 1 improves, it is characterized in that: the both-end of this rotor silicon steel sheet is provided with the side cover locking, its side cover is set as has several through holes, through hole communicates in the silicon steel sheet slotted eye, through hole can be gone in the slotted eye of silicon steel sheet for circulation of air, forms result of ventilating heat dissipation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191862U CN201252460Y (en) | 2008-07-15 | 2008-07-15 | Improved structure of a brushless motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191862U CN201252460Y (en) | 2008-07-15 | 2008-07-15 | Improved structure of a brushless motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252460Y true CN201252460Y (en) | 2009-06-03 |
Family
ID=40748123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201191862U Expired - Fee Related CN201252460Y (en) | 2008-07-15 | 2008-07-15 | Improved structure of a brushless motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201252460Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307089A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Weight type self-balancing eccentric shaft |
| CN111682666A (en) * | 2020-05-21 | 2020-09-18 | 杭州中豪电动科技有限公司 | Single rotor disc applied to disc type motor |
-
2008
- 2008-07-15 CN CNU2008201191862U patent/CN201252460Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307089A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Weight type self-balancing eccentric shaft |
| CN111682666A (en) * | 2020-05-21 | 2020-09-18 | 杭州中豪电动科技有限公司 | Single rotor disc applied to disc type motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20150715 |
|
| EXPY | Termination of patent right or utility model |