CN217307388U - High-speed permanent magnet direct current brushless motor that bloies - Google Patents

Abstract

The utility model discloses a high-speed blowing permanent magnet direct current brushless motor, which comprises a stator component, a rotor component, a shell and a PCBA conversion plate; the stator component comprises a plastic-coated stator core and a coil, and the coil is wound on the plastic-coated stator core; the PCBA conversion plate is welded on the stator assembly, and the stator assembly is adhered in one end of the shell; and one end of the rotor assembly is arranged in the stator assembly, and the other end of the rotor assembly is fixed on the through hole of the shell. The utility model has the advantages of low noise, high air output, small volume, long service life and environmental protection, and can be better applied to the hand dryer.

Description

High-speed permanent magnet direct current brushless motor that bloies

Technical Field

The utility model relates to a brushless motor, concretely relates to permanent magnet direct current brushless motor bloies at a high speed.

Background

A hand dryer in public places is a permanent magnet direct current brushless motor which can be dried quickly after hands are washed, and is mainly applied to hotels, restaurants, scientific research institutions, hospitals, public entertainment places, toilets of every family and the like. After washing hands, the hands can be blown out at high speed, and the moisture of the hands can be dried quickly, so that the requirements of not wiping the moisture by a towel and preventing cross infection of diseases can be met.

The motors of the traditional hand dryer comprise a capacitor asynchronous motor, a shaded pole motor, a series excited motor, a brush direct current motor and the like. The capacitor asynchronous motor and the shaded pole motor have the defect of low noise, but the air volume is small and the volume is large; the series excited motor has the defects of large air quantity of a brush direct current motor, large sound, environmental pollution, short service life and the like.

Disclosure of Invention

The utility model aims to solve the technical problem that a permanent magnet direct current brushless motor bloies at a high speed is provided to solve the problem that exists among the background art.

The utility model discloses high-speed permanent magnet brushless DC motor that bloies realizes through following technical scheme: the rotor assembly comprises a stator assembly, a rotor assembly, a shell and a PCBA conversion plate;

the stator component comprises a plastic-coated stator core and a coil, and the coil is wound on the plastic-coated stator core; the PCBA conversion plate is welded on the stator assembly, and the stator assembly is bonded in one end of the shell; rotor subassembly one end sets up in stator module, and the other end is fixed in on the through-hole of shell.

As the preferred technical scheme, the rotor assembly comprises a shaft core and a magnetic ring, the magnetic ring is fixed at one end of the shaft core and is arranged in a plastic-coated stator iron core, two bearings are fixed at the other end of the shaft core, and a spring is arranged between the two bearings.

As the preferred technical scheme, the bearing is fixed in a through hole of the shell, the other end of the shaft core is arranged at the other end of the shell, and the shaft core is provided with the fan blade.

As a preferred technical scheme, an air channel is arranged at the position, corresponding to the fan blades, of the shell.

The utility model has the advantages that: the utility model has the advantages of low noise, high air output, small volume, long service life and environmental protection, and can be better applied to hand dryers.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic plan view of the present invention;

fig. 2 is a schematic sectional view of the structure of the utility model A-A.

Detailed Description

All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those 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 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.

In addition, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

The use of terms herein such as "upper," "above," "lower," "below," and the like in describing relative spatial positions is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-2, the high-speed blowing permanent magnet dc brushless motor of the present invention comprises a stator assembly, a rotor assembly, a housing 4 and a PCBA converter plate 8;

the stator component comprises a plastic-coated stator core 5 and a coil 6, and the coil 6 is wound on the plastic-coated stator core 5; the PCBA converter plate 8 is welded on the stator assembly, and the stator assembly is adhered in one end of the shell 4; one end of the rotor component is arranged in the stator component, and the other end of the rotor component is fixed on the through hole of the shell 4.

In this embodiment, the rotor assembly includes a shaft core 1 and a magnetic ring 7, the magnetic ring 7 is fixedly bonded to one end of the shaft core 1 through glue and is disposed in the plastic-coated stator core 5, two bearings 2 are fixedly bonded to the other end of the shaft core 1, and a spring 9 is disposed between the two bearings 2.

In this embodiment, the bearing 2 is fixed in the through-hole of shell 4, and the other end of the axle core 1 is arranged in the other end of shell 4, and installs fan blade 3 on the axle core 1, produces magnetic field through coil 6 and drives rotor subassembly and the high-speed rotation of fan blade to produce amount of wind, reach the mesh of weathering fast.

In this embodiment, the casing 4 is provided with an air duct at a position corresponding to the fan blade 3.

The working principle is as follows:

after the driver is electrified, the coil generates a magnetic field to drive the permanent magnet rotor and the fan blades to rotate at a high speed, so that air volume and air pressure are generated, and the aim of quickly drying the fan blades is fulfilled. The air drying efficiency can be improved by blowing out warm air stably and at high speed by matching with a proper heating device and a temperature control sensor.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims (4)

1. The utility model provides a permanent magnetism DC brushless motor bloies at a high speed which characterized in that: comprises a stator component, a rotor component, a shell (4) and a PCBA conversion plate (8);

the stator component comprises a plastic-coated stator core (5) and a coil (6), and the coil (6) is wound on the plastic-coated stator core (5); the PCBA conversion plate (8) is welded on the stator assembly, and the stator assembly is bonded in one end of the shell (4); one end of the rotor component is arranged in the stator component, and the other end of the rotor component is fixed on the through hole of the shell (4).

2. The high-speed blowing permanent magnet brushless dc motor according to claim 1, characterized in that: the rotor assembly comprises a shaft core (1) and a magnetic ring (7), the magnetic ring (7) is fixed at one end of the shaft core (1) and is arranged in a plastic-coated stator core (5), two bearings (2) are fixed at the other end of the shaft core (1), and a spring (9) is arranged between the two bearings (2).

3. The high speed blowing permanent magnet dc brushless motor of claim 2, wherein: the fan blade is characterized in that the bearing (2) is fixed in a through hole of the shell (4), the other end of the shaft core (1) is arranged at the other end of the shell (4), and the shaft core (1) is provided with the fan blade (3).

4. The high speed blowing permanent magnet dc brushless motor of claim 1, wherein: and an air channel is arranged at the position of the shell (4) corresponding to the fan blade (3).

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