CN207304187U

CN207304187U - External-rotating permanent magnet motor structure

Info

Publication number: CN207304187U
Application number: CN201720630253.6U
Authority: CN
Inventors: 徐享渊
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-02
Filing date: 2017-06-02
Publication date: 2018-05-01
Anticipated expiration: 2027-06-02

Abstract

A kind of external-rotating permanent magnet motor structure, it includes there is one first housing, which has a substrate, which is integrally formed with a perisporium ring week and in being internally formed an accommodating space；And multiple permanent magnets, it is equidistantly located on the perisporium of first housing；And one second housing, it is covered on first housing, and second housing is equipped with an extension along its peripheral ring, the height of the extension and the perisporium is slightly identical, thus, the magnetic conductive area that can be doubled through the perisporium and the extension, makes magnetic conduction smooth, increases the output strength of the external-rotating permanent magnet motor structure.

Description

External-rotating permanent magnet motor structure

Technical field

The utility model is related with a kind of electric machine structure, particularly relates to a kind of external-rotating permanent magnet motor structure.

Background technology

Common permanent magnet motor structure, it includes a stator and a rotor, which includes a mandrel and an electromagnetism Iron portion, the electromagnet portion are located in mandrel and are arranged with coil, which is arranged at the outside of stator, which includes One upper cover, multiple permanent magnets and a lower cover, the upper cover and the lower cover pairing, the upper cover are equipped with a perisporium, and in the perisporium Side is installed with the permanent magnet of multiple equidistant arrangements, thus, the rotor by magnetic pole different between such adjacent permanent magnet, Thus the electromagnet portion with the stator produces the effect being attracted or repelled, and rotates rotor continued operation.

However, during common permanent magnet motor structure operating, perisporium meeting magnetic conduction, allows magnetic energy to pass through, if upper cover perisporium Thinner thickness, then be easy to cause magnetic saturation phenomenon so that the output strength of motor is smaller, if the thickness of upper cover perisporium compared with Thickness, though can strengthen the output strength of motor, relative cost is also higher, therefore inventor is above-mentioned scarce in observing After point, it is believed that existing permanent magnet motor structure still has further improved necessity, and has the generation of the utility model then.

Utility model content

The main purpose of the utility model is that providing a kind of external-rotating permanent magnet motor structure, it can increase magnetic conductive area, And then lift the efficiency and output power of motor entirety.

In order to achieve the above object, external-rotating permanent magnet motor structure provided by the utility model, it includes there is one first housing, It is arranged on a stator outside, which has a substrate, which is integrally formed with a perisporium ring week and in internal shape Into an accommodating space, and first housing is respectively equipped with the axis hole communicated with the accommodating space and an opening, which wears In on the substrate；And multiple permanent magnets, it is equidistantly located in the perisporium of first housing；And one second housing, its Opening equipped with a cover plate lid together in first housing, and be integrally formed with an extension in the ring week of the cover board, the extension towards this The direction extension of first housing.

Preferably, wherein, which extends to the middle position of such permanent magnet.

Preferably, wherein, the height of the perisporium and the extension is slightly identical, may extend to the extension The relative position of the substrate.

Preferably, wherein, which is made of with second housing permeability magnetic material.

Preferably, wherein, the internal diameter of the extension is more than the outside diameter of the perisporium, the extension be located on this first On the outside of the perisporium of housing.

External-rotating permanent magnet motor structure provided by the utility model, it can increase by one through the perisporium and the extension Magnetic conductive area again, makes magnetic conduction smooth, increases the output strength of the external-rotating permanent magnet motor structure.

Brief description of the drawings

The exploded perspective view of Fig. 1 the utility model.

The sectional view of the first embodiment of Fig. 2 the utility model.

The sectional view of the second embodiment of Fig. 3 the utility model.

The sectional view of the 3rd embodiment of Fig. 4 the utility model.

Main element symbol description：

100 external-rotating permanent magnet motor structures

10 first housings

11 substrates

12 perisporiums

13 accommodating spaces

14 axis holes

15 openings

20 permanent magnets

30 stators

31 mandrels

32 electromagnet portions

33 coils

40 second housings

41 cover boards

42 extensions

Embodiment

Please refer to Fig.1 and Fig. 2 shown in, be the utility model exploded view and sectional view, its exposure has a kind of outward rotation type Permanent magnet motor structure 100, it includes have：

One first housing 10, it is made of permeability magnetic material, and in this present embodiment, which is iron, the first shell Body 10 has a substrate 11, which is integrally formed with a perisporium 12 ring week and in being internally formed an accommodating space 13, and should First housing 10 is respectively equipped with the axis hole 14 communicated with the accommodating space 13 and an opening 15, which is arranged in the substrate 11, wherein, which is integrally formed equipped with the substrate 11 and the perisporium 12.

Multiple permanent magnets 20, it is equidistantly located in the perisporium 12 of first housing 10, and the two of such permanent magnet 20 End is respectively equipped with opposite magnetic pole.

One stator 30, it is arranged in the accommodating space 13, which has a mandrel 31 and an electromagnet portion 32, should Mandrel 31 is arranged in the axis hole 14, and the electromagnet portion 32 is located in the mandrel 31 and is arranged with coil 33.

One second housing 40, it is made of permeability magnetic material, it is covered on opening for first housing 10 equipped with a cover board 41 Mouth 15, and the ring week of the cover board 41 extension 42 is integrally formed with, which extends towards the direction of first housing 10, in In the present embodiment, which is arranged on the top of second housing 40, and the extension 42 is ring wall, and the extension 42 Internal diameter be more than the outside diameter of the perisporium 12, the extension 42 is located on the inner side of perisporium 12 of first housing 10, wherein, this Two housings 40 are integrally formed equipped with the cover board 41 and the extension 42.

Please continue to refer to shown in Fig. 1 and Fig. 2, the sectional view of the first embodiment of the utility model, 42 ring of extension is set In the outside of the perisporium 12, and the height of the perisporium 12 and the extension 42 is slightly identical, may extend to the extension 42 The relative position of the substrate 11, therefore when starting the electric machine structure 100, the coil 33 of the stator 30 passes through magnetic effect of electric current And make it that the electromagnet portion 32 produces different magnetic poles so that the electromagnet portion 32 and such permanent magnet 20 mutually produce it is attracting and The effect of repelling each other, and such permanent magnet 20 is persistently rotated around the electromagnet portion 32, and the perisporium 12 and the extension 42 For permeability magnetic material, therefore magnetically permeable, and magnetic energy is allowed to pass through therefore the magnetic conduction face that the perisporium 12 and the extension 42 can double Product, reducing magnetic saturation makes magnetic conduction smooth, increases the output strength of the external-rotating permanent magnet motor structure 100, and the extension 42 can Integrally formed mode takes shape in second housing 40, and with the low effectiveness of cost.

Referring again to shown in Fig. 3, the sectional view of the second embodiment of the utility model, the utility model second embodiment with Aforementioned first embodiment difference is that the extension 42 is located to the middle position of such permanent magnet 20, therefore thoroughly The magnetic conductive area that the perisporium 12 and the extension 42 can double is crossed, reducing magnetic saturation makes magnetic conduction smooth, increases this outer turn The output strength of formula permanent magnet motor structure 100.

Referring again to shown in Fig. 4, the sectional view of the 3rd embodiment of the utility model, the utility model 3rd embodiment with Aforementioned first embodiment difference is that second housing 40 is arranged on the top of first housing 10, therefore passes through the perisporium 12 and the magnetic conductive area that can double of the extension 42, reducing magnetic saturation makes magnetic conduction smooth, increases outward rotation type permanent magnet electricity The output strength of machine structure 100.

Claims

1. a kind of external-rotating permanent magnet motor structure, it is characterised in that include：

One first housing, it is arranged on a stator outside, which has a mandrel and an electromagnet portion, the electromagnet portion ring In the mandrel and be arranged with coil, which has a substrate, the substrate be integrally formed with ring week a perisporium and in An accommodating space is internally formed, and first housing is respectively equipped with the axis hole communicated with the accommodating space and an opening, the axis Hole is arranged on the substrate, and the axis hole corresponds to mandrel setting；

Multiple permanent magnets, it is equidistantly located in the perisporium of first housing；

One second housing, it is equipped with opening of the cover plate lid together in first housing, and the ring week of the cover board is integrally formed with one and prolongs Extending portion, the extension extend towards the direction of first housing；

Thus, magnetic conductive area can be increased through the extension, make magnetic conduction smooth, and the external-rotating permanent magnet motor structure can be increased Output strength.

2. external-rotating permanent magnet motor structure as claimed in claim 1, it is characterised in that the extension extends to such permanent magnetic The middle position of iron.

3. external-rotating permanent magnet motor structure as claimed in claim 1, it is characterised in that the height of the perisporium and the extension It is slightly identical, the extension is may extend to the relative position of the substrate.

4. external-rotating permanent magnet motor structure as claimed in claim 1, it is characterised in that first housing and second housing by Permeability magnetic material is formed.

5. external-rotating permanent magnet motor structure as claimed in claim 1, it is characterised in that the internal diameter of the extension is more than the perisporium Outside diameter, which is located on the outside of the perisporium of first housing.