CN202883473U - Axial fan used for solid rotor permanent magnetic motor - Google Patents
Axial fan used for solid rotor permanent magnetic motor Download PDFInfo
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- CN202883473U CN202883473U CN 201220322105 CN201220322105U CN202883473U CN 202883473 U CN202883473 U CN 202883473U CN 201220322105 CN201220322105 CN 201220322105 CN 201220322105 U CN201220322105 U CN 201220322105U CN 202883473 U CN202883473 U CN 202883473U
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- fan
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- hub
- magnet motor
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Abstract
The utility model discloses an axial fan used for a solid rotor permanent magnetic motor and belongs to the technical field of a permanent magnetic motor. The axial fan used for the solid rotor permanent magnetic motor comprises a fan hub and multiple fan blades, and the fan hub is fixed on a motor rotary shaft and arranged outside the end face of a solid rotor. The multiple fan blades are evenly fixed on the outer cylinder surface of the fan hub and mutually provided with fixed intervals. A plane of an inner arc of each fan blade and the end face of the fan hub form an angle of 35 degrees-45 degrees. Each fan blade is provided with a grazing angle of 10 degrees, and the directions of the grazing angles are consistent. The maximum outer diameter of each fan blade is equal to the outer diameter of an outer circle of the solid rotor after installed in place. In addition, the fan hub is provided with a balance block and a ring-shaped groove. The axial fan used for the solid rotor permanent magnetic motor can increase air flow among air gaps, and improves ventilating and heat dissipation effect of the permanent magnetic motor due to the fact that high-speed air flow takes away heat.
Description
Technical field
The utility model relates to a kind of axial fan, especially the axial fan of solid-rotor permanent-magnet motor; Belong to the magneto technical field.
Background technique
This device is used in the solid-rotor permanent-magnet motor, mainly solves the temperature rise problem of motor.Various losses in the motor all will be transformed into heat, and if the permanent magnet motor temperature rise, magnetic can reduce, and reduces working life.Ventilation effect is poor in the solid rotor motor at present, and irrational aeration structure does not only reduce temperature rise, and also so that motor efficiency is on the low side, shorten working life.Therefore for solid-rotor permanent-magnet motor especially high power motor problem of temperature rise this device is proposed.
The model utility content
The purpose of this utility model is in order to overcome the defective of prior art, in order to solve the solid-rotor permanent-magnet high power motor problem poor, temperature rise of ventilating, proposes a kind of dedicated fan device that designs for solid-rotor permanent-magnet motor heat dissipation problem.
Axial fan for the solid-rotor permanent-magnet motor described in the utility model is achieved through the following technical solutions:
A kind of axial fan for the solid-rotor permanent-magnet motor comprises following part:
Be fixed on the machine shaft and be positioned at the fan hub in the solid rotor end face outside; A plurality ofly evenly be fixed on the fan hub external cylindrical surface and the fan leaf that has each other fixed intervals;
The plane, inner arc place of described each fan leaf becomes 35 °～45° angle degree with the fan hub end face, the plane, inner arc place of described fan leaf refers to the plane at the intersection place that fan leaf and fan hub external cylindrical surface intersect, every fan leaf has 10 ° the angle of plunderring, and it is consistent to plunder the angular direction, and each the fan leaf maximum outside diameter D after being in place equals the external diameter of solid rotor cylindrical.
As preferably, described axial fan also comprises a plurality of equilibrium blocks, and the exterior edge face of fan hub has the circular groove centered by rotor shaft, and the opening of described circular groove is less than the bottom of groove, described a plurality of equilibrium block is embedded in the groove, and described equilibrium block has the shape that matches with circular groove.
As preferably, the quantity of fan leaf is the result after [π (D+d)/(D-d)]-2 rounds up, and wherein D is the fan leaf maximum outside diameter, and d is the fan hub outside diameter.
As preferably, fan leaf outer arc radius R equals fan hub outside diameter d; Fan leaf inner arc radius r is that the fan hub external cylindrical surface substantially coincide and decides, and namely circular arc is a camber line on the fan hub external cylindrical surface in the fan leaf.(center of circle of fan leaf external arc and interior circular arc is not necessarily at the circle centre position of fan hub.)
As preferably, fan hub is 50mm～60mm along the width C of rotor shaft direction.
As preferably, the position that fan hub contacts with rotating shaft offers keyway mechanism, and fan hub matches with rotor shaft by keyway mechanism and be fixing.
As preferably, fan leaf thickness b=3mm～4mm.
As preferably, after being in place, along the rotor shaft radial direction, each fan leaf maximum outside diameter place is 20%～23% of fan leaf maximum outside diameter D to the distance H of fan hub external cylindrical surface.
As preferably, equilibrium block is fixed by screws in the circular groove, is connected by spot welding and fan hub again.
As preferably, described axial fan is positioned at fan housing, and described fan housing is positioned at one week of the stator coil outside and is fixed on the support of permanent magnet motor.
The contrast prior art, the beneficial effects of the utility model are:
1. the axial fan air intake is along axial direction, and the fan that is welded by certain angle makes air-out along the diagonal of axis and vertical axis high flow capacity be arranged all, medium blast; Traditional centrifugal cutter air intake is along axial direction, and air-out is the vertical axis direction, is reflexed to the diagonal of the axis that hangs down by inner walls again, although blast is high, air quantity is limited.And its fan leaf of the fan of this design is shaped as the wave flow line style, with heater enough heat diffusion area are arranged in the approach of assurance cooling-air process, the heat that in air flow process generator loss is transformed effectively passes, and the temperature rise of motor is decreased;
2. this fan running gets up, and noise is low, air quantity is large, efficient is high;
3. can increase the air mass flow between each air gap, the air-flow of fair speed has been taken away heat, improves that permanent magnet motor ventilates, the effect of heat radiation.
Description of drawings
Fig. 1 is the fan structure schematic representation;
Fig. 2 is that the A of Fig. 1 fan structure is to view;
Fig. 3 is the B-B sectional view of Fig. 1 fan structure;
Fig. 4 is the equilibrium block side view;
Fig. 5 is the right elevation of equilibrium block shown in Figure 4;
Fig. 6 is that axial fan described in the utility model is installed in the position relationship in the solid-rotor permanent-magnet motor.
Wherein, 1-axial fan air intake direction, the axial air-out direction of 2-, the diagonal air-out direction of the vertical axis of 3-, 4-rotating shaft sense of rotation, 5-support, 6-stator iron core, 7-stator coil, the 8-fan housing, 9-solid rotor, 10-fan, 11-rotating shaft, the 12-connecting key, 13-fan hub end face, 14-fan hub external cylindrical surface, 15-fan leaf, the 16-fan hub, 17-screw, 18-equilibrium block, 19-weld seam, the 20-keyway, 21-places the circular groove of equilibrium block, circular arc in the 22-fan leaf, 23-fan leaf external arc.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail, technical problem and beneficial effect that technical solutions of the utility model solve have also been narrated simultaneously, it is to be noted, described embodiment only is intended to be convenient to understanding of the present utility model, and it is not played any restriction effect.
(1) fan leaf 15, are used for conduction wind;
(2) fan hub 16, are used for taking up each part, fan leaf are installed in the rotating shaft of solid rotor;
(3) equilibrium block 18, are used for that rotor is quiet, adjust during dynamic balancing; Quantity is decided according to balance;
(4) screw 17, are used for equilibrium block 18 is fixed on fan hub 16.
Such as attached Fig. 1 and 2 illustrated embodiment, each fan leaf inner arc (weld seam 19) becomes 35 °～45° angle degree uniform welding (to change the then direction of welding symmetry change of fan leaf inner arc and fan hub end face such as the fan sense of rotation) on fan hub external cylindrical surface 14 with the fan hub end face.Fan maximum outside diameter D after being in place is equal to the external diameter of solid rotor cylindrical.Described axial fan is positioned at fan housing 8, and described fan housing 8 is positioned at stator coil one week of 7 outsides and is fixed on the support 5 of permanent magnet motor.
The quantity m=[π (D+d)/(D-d) of fan leaf]-2, wherein D is the fan leaf maximum outside diameter, d is the fan hub outside diameter; After being in place each fan leaf maximum outside diameter place to the distance H of fan hub external cylindrical surface be the fan external diameter 20%～23% between; The radius R of fan leaf external arc 23 equals fan hub outside diameter d; The radius r of interior circular arc 22 is decided according to substantially coincideing with the fan hub external cylindrical surface; Fan leaf thickness b=3mm～4mm; Every fan leaf has 10 ° the angle of plunderring, and makes the external arc waviness.Still decide according to sense of rotation backward before plunderring angle.See " A is to rotation " view among Fig. 1 for details.Change such as the air intake direction, the angle direction of then plunderring also changes.Annexation between above-mentioned constituent elements is for as shown in Figure 2:
Equilibrium block sees Fig. 1 and 3 for details, and equilibrium block 18 is embedded in the circular groove, and fixes by screw 17 or spot welding, and equilibrium block has the shape that matches with circular groove 21, throws away in circular groove 21 preventing, equilibrium block can move in circular groove when taking off screw.As preferably, such as Figure 4 and 5, be fixed in the circular groove 21 that interior inclined-plane is arranged on the fan hub end face 13 equally with bevelled equilibrium block 18 usefulness screws 17, finish that point welds after the balance.This structure can be saved the balance needed time.
The specific works process of this device is as follows, as shown in Figure 6, fan hub is fixed on by key in the rotating shaft of rotor, and when rotating shaft drive fan hub rotated together, the air in the fan leaf outside imported forward between fairshaped fan leaf.(angle value is decided by rotor 9, stator diameter because fan leaf becomes 35 °～45 ° with the fan hub end face.Diameter is large, and angle is then large, otherwise), so that air vertically 2 and diagonal 3 directions of vertical axis enter simultaneously between rotor 9 and stator air gap, stator surface and the support wall (among Fig. 6 shown in the arrow).The heat of being taken out of from rotor and stator surface by air throws away along circumference after radially supercharging (establishing in addition mechanism), discharges electric machine stand outside window, has played the purpose of heat radiation.
In the present embodiment, the axial fan air intake is along axial direction 1, and air-out is along the diagonal of axis and vertical axis, i.e. 2,3 directions, and medium blast has higher air quantity; Traditional centrifugal cutter air intake is along axial direction, and air-out is the vertical axis direction, reflexes to direction 3 by inner walls again, although blast is high, air quantity is limited.And its fan leaf of the fan of this design is shaped as wave flow line style (seeing attached Fig. 1 and 2), the fan that is welded by certain angle makes 2,3 directions that high flow capacity all be arranged, with heater enough heat diffusion area are arranged in the approach of assurance cooling-air process, the heat that in air flow process generator loss is transformed effectively passes, and the temperature rise of motor is decreased.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with the people of this technology in the disclosed technical scope of the utility model; can understand conversion and the replacement expected; all should be encompassed in of the present utility model comprising within the scope, therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (10)
1. an axial fan that is used for the solid-rotor permanent-magnet motor is characterized in that, comprises the fan hub that is fixed on the machine shaft and is positioned at the solid rotor end face outside; A plurality ofly evenly be fixed on the fan hub external cylindrical surface and the fan leaf that has each other fixed intervals; The plane, inner arc place of described each fan leaf becomes 35 °～45° angle degree with the fan hub end face, every fan leaf has 10 ° the angle of plunderring, and it is consistent to plunder the angular direction, and each the fan leaf maximum outside diameter D after being in place equals the external diameter of solid rotor cylindrical.
2. described a kind of axial fan for the solid-rotor permanent-magnet motor according to claim 1, it is characterized in that, also comprise a plurality of equilibrium blocks, the exterior edge face of fan hub has the circular groove centered by rotor shaft, the opening of described circular groove is less than the bottom of groove, described a plurality of equilibrium block is embedded in the groove, and described equilibrium block has the shape that matches with circular groove.
3. described a kind of axial fan for the solid-rotor permanent-magnet motor according to claim 1, it is characterized in that, the quantity of fan leaf is the result after [π (D+d)/(D-d)]-2 rounds up, and wherein D is the fan leaf maximum outside diameter, and d is the fan hub outside diameter.
4. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that fan leaf outer arc radius R equals fan hub outside diameter d.
5. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that fan hub is 50mm～60mm along the width C of rotor shaft direction.
6. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that the position that fan hub contacts with rotating shaft offers keyway mechanism, and fan hub matches with rotor shaft by keyway mechanism and be fixing.
7. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that fan leaf thickness b=3mm～4mm.
8. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that, after being in place, along the rotor shaft radial direction, each fan leaf maximum outside diameter place is 20%～23% of fan leaf maximum outside diameter D to the distance H of fan hub external cylindrical surface.
9. described a kind of axial fan for the solid-rotor permanent-magnet motor according to claim 2 is characterized in that equilibrium block is fixed by screws in the circular groove, is connected by spot welding and fan hub again.
10. described any is used for the axial fan of solid-rotor permanent-magnet motor according to claim 1-3, it is characterized in that described axial fan is positioned at fan housing, and described fan housing is positioned at one week of the stator coil outside and is fixed on the support of permanent magnet motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322105 CN202883473U (en) | 2012-07-05 | 2012-07-05 | Axial fan used for solid rotor permanent magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220322105 CN202883473U (en) | 2012-07-05 | 2012-07-05 | Axial fan used for solid rotor permanent magnetic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883473U true CN202883473U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220322105 Expired - Lifetime CN202883473U (en) | 2012-07-05 | 2012-07-05 | Axial fan used for solid rotor permanent magnetic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883473U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230154A (en) * | 2016-08-25 | 2016-12-14 | 浙江高领新能源科技有限公司 | A kind of internal cooling system of external rotor electric machine |
| CN110528433A (en) * | 2018-05-25 | 2019-12-03 | 南京德朔实业有限公司 | Hair drier |
-
2012
- 2012-07-05 CN CN 201220322105 patent/CN202883473U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106230154A (en) * | 2016-08-25 | 2016-12-14 | 浙江高领新能源科技有限公司 | A kind of internal cooling system of external rotor electric machine |
| CN110528433A (en) * | 2018-05-25 | 2019-12-03 | 南京德朔实业有限公司 | Hair drier |
| CN110528433B (en) * | 2018-05-25 | 2021-03-26 | 南京德朔实业有限公司 | Hair drier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170614 Address after: Victory Street 030009 Shanxi Xinghualing district city of Taiyuan province No. 101 building 118 layer 1 Patentee after: SHANXI NORTH MACHINERY HOLDINGS Co.,Ltd. Address before: 030009 Shengli Street, Shanxi, Taiyuan, No. 101 Patentee before: SHANXI NORTH MACHINE-BUILDING Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |