CN208479443U - Electronic ducted-fan blower - Google Patents

Abstract

The utility model relates to appliance field, in particular to electronic ducted-fan blower；This electronic ducted-fan blower, centre are rotors；There is stator outside rotor, is duct outside stator；The rear end of duct is rear cover；Rotor includes axis, magnet ring, impeller；Duct includes shell, stator blade；Stator includes iron core, coil；There are 3 or more in iron core, there is coil on tooth；Magnet ring is made of permanent-magnet material, and surface magnetizes to form 2 or more；This electronic ducted-fan blower is pushed due to using three-phase brushless motor, and high speed performance is good, and power density is high, and operating is smooth.

Description

Electronic ducted-fan blower

Technical field

The utility model relates to appliance field, in particular to electronic ducted-fan blower.

Background technique

The electronic ducted-fan blower of present miniature high-speed, general cooperation runs at high speed, using monophase machine or two motor pushings Scheme, and generally use cantilever support；Power of motor density is low, and run at high speed irregularity.

Utility model content

The utility model main purpose is to improve the prior art, pushes ducted-fan blower using Miniature brushless motor, and bilateral Bearing support rotor.

Preferably, electronic ducted-fan blower；It is characterized by: there is rotor in centre, there is stator outside rotor, there is duct outside stator； There is rear cover in the rear end of duct；Rotor includes axis, magnet ring, impeller, and impeller is fixed on axis leading portion, and magnet ring is fixed on shaft rear end；Duct Including shell, stator blade；There is stator on the outside of the back segment of rotor, stator includes iron core, coil；In a ring, inside has x to iron core Slot forms tooth between slot and slot；Coil is tubular, and x coil is fixed on x tooth respectively, and a coil is fixed on each tooth； Magnet ring is cylindrical shape, is made of permanent-magnet material, in the outer round surface of magnet ring, magnetizes to form y magnetic pole, the pole N, S extremely respectively have y/2 A, the pole the N pole S is staggered；Wherein, the multiple that slot number x is 3, and the multiple that x minimum 3, number of magnetic poles y are 2, and y minimum 2.

Preferably, electronic ducted-fan blower, it is characterised in that: the combination of slot number x and number of magnetic poles y is respectively as follows: x=6, y=4； Or x=3, y=2；Or x=3, y=4；Or x=9, y=8；Or x=12, y=8；Or x=12, y=10, for high-speed rotation Performance is more preferable, and y is up to 10, x and is up to 12.

Preferably, electronic ducted-fan blower；It is characterized by: it is characterized by: there are also electric machine controllers；Electric machine controller with Coil is connected by conducting wire.

Preferably, electronic ducted-fan blower；It is characterized by: it is characterized by: electric machine controller is the three-phase of no sensor Brushless motor controller.

Preferably, electronic ducted-fan blower；It is characterized by: it is characterized by: having insulating layer between iron core and coil.

Preferably, electronic ducted-fan blower；It is characterized by: there are also terminal plates for stator rear end, lead between terminal plate and coil Cross conductor connection.

Preferably, electronic ducted-fan blower；It is characterized by: it is characterized by: there is bearing chamber at duct center.

Preferably, electronic ducted-fan blower；It is characterized by: it is characterized by: there is bearing chamber at rear cover center.

Using the utility model, there is following advantage compared with prior art:

It is driven using the brushless motor of 6 slot, 4 pole, high-speed rotation is smooth, low noise, and the service life is long；Rotor only has two pairs of poles, can To realize higher revolving speed；Two ends of rotor bearing support, operating are stablized.

Detailed description of the invention

Fig. 1 is the utility model embodiment, the section view configuration schematic diagram of electronic ducted-fan blower.

Fig. 2 is the utility model embodiment, the cross-sectional view of electronic ducted-fan blower.

Fig. 3 is the utility model embodiment, the cross-sectional view of rotor.

Fig. 4 is the utility model embodiment, the configuration schematic diagram of stator.

Fig. 5 is the utility model embodiment, electronic duct outline drawing.

Fig. 6 is the utility model embodiment, electronic ducted-fan blower and electric machine controller connection schematic diagram.

Specific embodiment

In order to keep the method for the utility model clearer, clear, make below in conjunction with specific embodiment, attached drawing further It is described in detail:

The utility model embodiment, as shown in figures 1 to 6:

Electronic ducted-fan blower includes duct 02, rotor 03, stator 01, rear cover 04.

It is bearing chamber that duct 02, which includes among 22,22 inner cylinder of outer cylinder 23 and inner cylinder, is 6 equal between outer cylinder 23 and inner cylinder 22 The stator blade 21 of even distribution.

Rotor 03 includes axis 34, impeller 31, bearing 32, magnet ring 33.

Impeller 31 is fixed on the leading portion of axis 34, and magnet ring 33 is permanent magnet, after magnetizing on cylindrical surface formed the pole N, One pole S, magnet ring 33 are fixed on the back segment of axis 34, and bearing 32 is fixed between impeller 31 and magnet ring 33, and the rearmost end of axis is fixed There is bearing 32.

The rear end of duct 02 is fixed with rear cover 04, there is bearing chamber (not individually instruction in figure) among rear cover 04.

Two bearings 32 of rotor 03, frame is in the central bearing chamber (individually instruction in figure) with rear cover 04 of duct 02 respectively It is interior, it can rotate.

Stator 01 includes iron core 13, insulation framework (not individually instruction in figure), coil 12, terminal plate 14.

Iron core 13 is tubular permeability magnetic material, there is 6 teeth on the inside of iron core 13, and 6 coils 12 are separately fixed at 6 of iron core 13 On tooth, coil 12 is made of enameled wire, and 6 coils 12 are connected on terminal plate 14 by conductor, and are divided into three-phase.

Electric machine controller 09 is the three-phase brushless motor controller of no sensor, is connect by conducting wire 08 with coil 12.

When work, 09 control coil 12 of electric machine controller is powered, and drives magnet ring 33 to rotate by stator 01, final to drive Impeller 31 rotates.The air-flow that impeller 31 generates, is guided by stator blade 21, is sprayed from the tail portion of duct 02.

By being driven using the brushless motor of 6 slot, 4 pole, high-speed rotation is smooth, low noise, and the service life is long.And only two pairs of magnetic Higher revolving speed may be implemented in pole.The brushless motor of three-phase realizes higher-wattage in the case where duct air-flow is cooling.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Equivalent structure transformation made by using the description of the utility model and the drawings is applied directly or indirectly in other phases The technical field of pass, is also included in the patent protection scope of the utility model.

Claims (8)

1. electronic ducted-fan blower, it is characterised in that: there is rotor in centre, has stator outside rotor, there is duct outside stator；The rear end of duct There is rear cover；Rotor includes axis, magnet ring, impeller, and impeller is fixed on axis leading portion, and magnet ring is fixed on shaft rear end；Duct includes shell, quiet Blade；There is stator on the outside of the back segment of rotor, stator includes iron core, coil；In a ring, there be x slot in inside to iron core, slot and slot it Between form tooth；Coil is tubular, and x coil is fixed on x tooth respectively, and a coil is fixed on each tooth；Magnet ring is cylinder Shape is made of permanent-magnet material, in the outer round surface of magnet ring, magnetizes to form y magnetic pole, and the pole N, S extremely respectively have y/2, and the pole the N pole S is handed over Mistake arrangement；Wherein, the multiple that slot number x is 3, and the multiple that x minimum 3, number of magnetic poles y are 2, and y minimum 2.

2. electronic ducted-fan blower according to claim 1, it is characterised in that: the combination of slot number x and number of magnetic poles y is respectively as follows: x =6, y=4；Or x=3, y=2；Or x=3, y=4；Or x=9, y=8；Or x=12, y=8；Or x=12, y=10.

3. electronic ducted-fan blower according to claim 2, it is characterised in that: there are also electric machine controllers；Electric machine controller with Coil is connected by conducting wire.

4. electronic ducted-fan blower according to claim 3, it is characterised in that: electric machine controller be no sensor three-phase without Brush motor controller.

5. electronic ducted-fan blower according to claim 4, it is characterised in that: there is insulating layer between iron core and coil.

6. electronic ducted-fan blower according to claim 5, it is characterised in that: stator rear end there are also terminal plate, terminal plate with It is connected between coil by conductor.

7. electronic ducted-fan blower according to claim 6, it is characterised in that: there is bearing chamber at duct center.

8. electronic ducted-fan blower according to claim 7, it is characterised in that: there is bearing chamber at rear cover center.