KR20160031332A

KR20160031332A - Stator module and Electric blower having the same

Info

Publication number: KR20160031332A
Application number: KR1020140121280A
Authority: KR
Inventors: 조용완
Original assignee: 삼성전기주식회사
Priority date: 2014-09-12
Filing date: 2014-09-12
Publication date: 2016-03-22

Abstract

The stator module according to an embodiment of the present invention includes a core including a core and a housing having a core accommodating portion for accommodating the core portion. The inner circumferential surface of the housing forming the core accommodating portion includes a planar portion and a curved portion And the outer peripheral surface of the core includes a flat portion corresponding to the flat portion of the core accommodating portion and a curved portion corresponding to the curved portion of the core accommodating portion.

Description

[0001] Stator module and electric blower having same [0002]

The present invention relates to a stator module and an electric blower including the stator module.

In general, a switched reluctance motor has a magnetic structure in which a stator and a rotor are rotatable, a concentrator coil is wound on the stator, and a rotor is formed of only an iron core without any excitation device, so that the price competitiveness is excellent and the continuous torque is stably Generating motor.

Such a switched reluctance motor is used in various applications through the above-described advantages.

As described in the following patent documents, an electric blower embodied as a motor for a cleaner includes a shaft, an impeller, a front, a housing, and a stator core. The stator core is inserted into the housing and the front is coupled to the housing. do.

US 20080014080A

An aspect of the present invention is to provide a stator module capable of minimizing an assembly deviation generated when a core is coupled to a housing and capable of miniaturization, and an electric blower including the stator module.

The stator module according to an embodiment of the present invention includes a core portion including a core and a housing having a core accommodating portion for accommodating the core portion. The inner circumferential surface of the housing forming the core accommodating portion includes a planar portion and a curved portion And the outer peripheral surface of the core includes a flat portion corresponding to the flat portion of the core accommodating portion and a curved portion corresponding to the curved portion of the core accommodating portion.

Further, an electric blower including a stator module according to an embodiment of the present invention includes a shaft, a rotating member coupled to an outer circumferential portion of the shaft, and a rotating member coupled to the shaft and having an impeller And a stator core including a core and a coil for generating electromagnetic force with the rotary member, a housing having a core accommodating portion for accommodating the stator core, and a stator including a front for rotatably supporting the shaft Wherein the inner peripheral surface of the housing forming the core accommodating portion includes a flat surface portion and a curved surface portion, the outer peripheral surface of the core includes a flat portion corresponding to the flat portion of the core accommodating portion, .

The features and advantages of one embodiment of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of an embodiment of the present invention.

1 is a perspective view schematically illustrating a stator module according to an embodiment of the present invention;
Figure 2 is a schematic exploded cross-sectional view of the stator module shown in Figure 1;
3 is an electric blower according to an embodiment of the present invention including a stator module.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of one embodiment of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings and the preferred embodiments thereof. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. It is also to be understood that the terms "first,"" second, "" one side,"" other, "and the like are used to distinguish one element from another, no. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known arts which may unnecessarily obscure the gist of an embodiment of the present invention will be omitted.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view schematically showing a stator module according to an embodiment of the present invention, and FIG. 2 is a schematic exploded cross-sectional view of the stator module shown in FIG.

As shown in the figure, the stator module 100 is a coupling module of a motor core and a housing that covers the core, and includes a housing 110 and a core portion 120.

More specifically, the housing 110 is formed with a core accommodating portion 111 for accommodating the core portion 120, and an inner circumferential surface of the housing 110 forming the core accommodating portion 111 is formed into a flat surface portion 111a and a curved surface portion 111b are formed. The housing 110 may have a cylindrical shape.

The core part 120 includes a core 121 and an insulator 122. The insulator 122 is coupled to the inside of the core 121 and is for winding a coil (not shown).

The outer circumferential surface of the core 121 coupled to the core accommodating portion 111 of the housing 110 includes a planar portion 121a corresponding to the planar portion 111a of the core accommodating portion 111, A curved surface portion 121b corresponding to the curved surface portion 111b of the receiving portion 111 is formed.

2, the curved surface portion 121b of the core 121 may partially correspond to the curved surface portion 111b of the core accommodating portion 111. In addition, as shown in FIG.

The flat portion 111a of the housing and the flat portion 121a of the core 121 are in contact with each other when the core portion 120 is inserted into the core accommodating portion 111 of the housing 110, Since the curved surface portion 121b of the core 121 is in contact with the curved surface portion 111b of the housing 110 so that the assembling deviation of the housing 110 and the core 121 is minimized, It is possible to reduce the dispersion of the characteristics.

Also, the stator module 100 according to an embodiment of the present invention may further include a front 130 and a cover 140.

More specifically, the front 130 is for supporting a shaft (not shown) rotatably, and a bearing (not shown) is inserted. 1 and 2, the front 130 is mounted on the housing 110, and a housing coupling part 131 is formed. The housing coupling part is formed at both ends of the front 130 . The housing coupling part 131 may be a through hole or a screw coupling part to be coupled to the housing by the coupling member 150.

A front engaging portion 112a corresponding to the housing engaging portion 131 of the front 130 is formed in the housing 120. A front mounting portion 112 is formed on the housing 120 and the front mounting portion 112a is formed on the front mounting portion 112.

The front mounting part 112 is formed on the outer peripheral part of the upper end of the housing 120 and the front mounting part 112 is formed on the housing 120 extending from the plane part 111a so that the housing 120 can be miniaturized. As shown in FIG.

The outer circumferential surface of the front mounting part 112 may have the same radius of curvature as that of the curved surface part 111b, so that the upper end of the housing 120 may be circular as shown in FIG.

The front engaging portion 112a of the housing 110 may be a screw engaging portion when the engaging member 150 is formed as a fixing screw.

The front 130 is positioned such that the housing coupling portion 131 corresponds to the front coupling portion 112a formed on the upper surface of the flat portion 111a of the housing 110, 150 to the upper portion of the housing 110, it is not required to secure an additional area for mounting the front portion of the housing, thereby making it possible to downsize the front portion.

The cover 140 is coupled to the housing 110 while covering the front 130. For this, the inner circumferential surface of the cover 140 may be formed to correspond to the outer circumferential surface of the housing 110.

3 is an electric blower according to an embodiment of the present invention including a stator module. As shown, the electric blower 1000 includes a stator including a housing 1100, a stator core 1200, a front 1300, a coupling member 1400, a cover 1500, a diffuser 1600b, A rotor 1700, a shaft 1700, and a rotor 1800. [

As shown in the figure, the housing 1100 is the same as the housing 110 of the stator module 100 described above. The core accommodating portion for accommodating the stator core 1200 includes a curved surface portion and a flat surface portion 1110 and extends in the axial direction of the shaft 1700, A mounting portion 1120 is formed.

That is, the front mounting portion 1120 is formed on the flat portion 1110 of the housing 1100.

And the stator core 1200 includes a core 1210, an insulator 1220, and a coil 1230. [ The core 1210 and the insulator 1220 are the same as the core 121 and the insulator 122 of the stator module 100 described above. Accordingly, the core 1210 has a flat portion 1211 corresponding to the flat portion 1110 of the core accommodating portion 1110.

The stator core 1200 has a flat surface portion 1110 of the housing 1100 and a flat surface portion 1211 of the core 1210 in contact with each other and a curved surface portion (not shown) (Not shown) of the housing 1100 and the stator core 1200 are minimized.

The front 1400 is coupled to the housing 1100 through a coupling member 1400 to the front mounting portion 1120 of the housing 1100. A more specific shape and organic coupling relationship therefor will be omitted from the stator module 100 as described above.

The electric blower 1000 according to an embodiment of the present invention further includes a bearing 1900 for supporting the shaft 1700 to the housing 1100 and the front 1300 so as to be rotatable, And the impeller 1600a is coupled to one end of the oil pan 1700. [

The bearing 1900 includes a first bearing 1900a and a second bearing 1900b respectively coupled to one side portion and the other side portion of the shaft 1700. The first bearing 1900a includes a first bearing 1900a, And the second bearing 1900b is coupled to the housing 1100. As shown in FIG.

The impeller 1600a is interlocked with the rotation of the shaft 1700 to suck the outside air, and the blade is formed.

The diffuser 1600b is disposed to face the impeller 1600a for guiding the outside air introduced by the impeller 1600a.

The rotating member 1800 is coupled to the outer circumferential surface of the shaft 1800 to generate an electromagnetic force for rotating the shaft 1700 together with the stator core 1200. Also, the rotary member 1800 may be formed of only an iron core, or may be formed of a permanent magnet or a coil.

The cover 1500 is coupled to the housing 1100 while covering the impeller 1600a, the diffuser 1600b, and the front 1300. [ For this, the inner circumferential surface of the cover 1500 may be formed to correspond to the outer circumferential surface of the housing 1100.

Further, the cover 1500 is formed with an inlet hole 1510 through which the outside air flows by the rotation of the impeller 1600a.

The electric blower 1000 according to an embodiment of the present invention including the stator module may be constructed so that the front 1300 is connected to the front mounting portion 1120 formed on the upper surface of the flat portion 1110 of the housing 1100, It is not necessary to secure an additional area for mounting the front, and it is possible to secure a space as shown by "A" in FIG. 4 and to reduce the size of the housing 1100 and the stator core 1200 The assembly deviation is minimized.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: stator module 110: housing
120: core part
111: core receiving portion
111a, 121a: plane parts 111b, 121b:
121: Core
122: Insulator
130: front 131: housing coupling part
150:
1000: electric blower 1100: housing
1110: flat portion 1120: front mounting portion
1200: stator core
1210: Core 1211:
1220: Insulator
1230: Coil
1300: Front 1400:
1500: Cover 1510: Inflow hole
1600a: impeller
1600b: Diffuser 1700: Shaft
1800: rotating member 1900: bearing
1900a: first bearing 1900b: second bearing

Claims

A core portion including a core; And
And a housing having a core accommodating portion for accommodating the core portion,
Wherein the inner peripheral surface of the housing forming the core accommodating portion includes a flat surface portion and a curved surface portion, the outer peripheral surface of the core includes a flat portion corresponding to the flat portion of the core accommodating portion and a curved surface portion corresponding to the curved surface portion of the core accommodating portion Stator module.

The method according to claim 1,
Further comprising a front coupled to the housing,
Wherein the housing has a front mounting portion extending from the flat portion.

The method of claim 2,
Further comprising a coupling member for fixing the front to the housing,
The housing coupling portion is formed on the front surface,
A front coupling portion corresponding to the housing coupling portion is formed on the front mounting portion of the housing, and the coupling member is fixed to the front coupling portion through the housing coupling portion.

The method of claim 2,
Wherein the front mounting portion is formed to have the same radius of curvature as that of the curved portion of the housing, and the end portion of the housing having the front mounting portion is circular.

The method of claim 4,
And a cover coupled to the housing while covering the front, wherein the inner circumferential surface of the cover corresponds to the outer circumferential surface of the circular housing.

A rotor including a shaft, a rotating member coupled to an outer circumferential portion of the shaft, and an impeller coupled to the shaft and having a wing formed therein for sucking outside air; And
A stator core disposed to face the rotating member and including a core and a coil for generating an electromagnetic force with the rotating member; a housing having a core accommodating portion for accommodating the stator core; Comprising a stator including a front,
Wherein the inner peripheral surface of the housing forming the core accommodating portion includes a flat surface portion and a curved surface portion, the outer peripheral surface of the core includes a flat portion corresponding to the flat portion of the core accommodating portion and a curved surface portion corresponding to the curved surface portion of the core accommodating portion Electric blower.

The method of claim 6,
Wherein the housing has a front mounting portion extending in the axial direction of the shaft.

The method of claim 6,
Further comprising a coupling member for fixing the front to the housing,
The housing coupling portion is formed on the front surface,
A front coupling portion corresponding to the housing coupling portion is formed on the front mounting portion of the housing, and the coupling member is fixed to the front coupling portion through the housing coupling portion.

The method of claim 7,
Wherein the front mounting portion is formed to have the same radius of curvature as that of the curved portion of the housing, and the end portion of the housing having the front mounting portion is circular.

The method of claim 9,
And a cover coupled to the housing while covering the front, wherein the inner circumferential surface of the cover corresponds to the outer circumferential surface of the circular housing.

The method of claim 6,
Wherein the stator core includes a core, an insulator coupled to the core, and a coil wound around the insulator.

The method of claim 6,
Further comprising a bearing coupled to the shaft and rotatably supporting the shaft, the bearing including a first bearing coupled to the front and a second bearing coupled to the housing.

The method of claim 6,
The stator
Further comprising a diffuser positioned to face the impeller for guiding the outside air introduced by the impeller.