CN110380551B

CN110380551B - Stator of motor

Info

Publication number: CN110380551B
Application number: CN201810330141.8A
Authority: CN
Inventors: 许志聪; 潘锦辉; 吴信贤
Original assignee: Yen Sun Technology Corp
Current assignee: Yen Sun Technology Corp
Priority date: 2018-04-13
Filing date: 2018-04-13
Publication date: 2020-08-04
Anticipated expiration: 2038-04-13
Also published as: CN110380551A

Abstract

A stator of a motor comprises a core body, a wire feeding frame, a substrate, a plurality of conductive pieces and a plurality of distribution rings, wherein the core body can be used for a plurality of coil windings to be independently wound, the wire feeding frame is arranged on the core body, the substrate is arranged on the wire feeding frame, the conductive pieces are arranged on the wire feeding frame, and the distribution rings are arranged in the substrate respectively. The upper line frame defines a plurality of setting grooves. The base plate is provided with a plurality of ring grooves. The conductive pieces are respectively arranged in the setting grooves. The distribution rings are respectively arranged in the ring grooves, each distribution ring comprises a ring body part and a plurality of fixing parts, the ring body part upwards penetrates through the positioning part of the substrate, the fixing parts are connected to the bottom edge of the ring body part and hooked on the fixing part on the substrate, and each fixing part is contacted with one of the corresponding conductive parts to enable the conductive parts to be electrically connected with each other. The power distribution ring is simple in design and can reduce difficulty in configuration.

Description

Stator of motor

Technical Field

The present invention relates to a drive assembly, and more particularly to a stator for an electric motor.

Background

An electric motor is a common component used to convert electrical energy into rotational kinetic energy to drive a machine or object, and includes a stator wound with coils, and a rotor rotatable relative to the stator under the influence of magnetic repulsion. The stator comprises a core body, a plurality of coil windings wound on the core body and independently wound, a wire frame used for corresponding to the coil windings, and a plurality of power distribution rings arranged on the wire frame and electrically connecting the coil windings according to a required mode.

Referring to fig. 1, each distribution ring 11 is made of an electrically conductive material and has a plurality of different external features for fixing to the fixing member 111 of the wire stand 12. In order to achieve the functions of radial positioning, rotation limitation, electrical connection, and the like, the shape design of the fixing member 111 of the power distribution ring 11 is very complicated and often has installation directionality, so that the difficulty in design and configuration is increased, and the adaptability is reduced.

Disclosure of Invention

The invention aims to provide a stator of a motor with simple design.

The stator of the motor is suitable for a plurality of coil windings; the method is characterized in that: the stator contains and supplies coil winding is independent respectively around the core of rolling up, set up in on the core and define out a plurality of cyclic annular looks interval arrangement set up the last line frame in groove, be almost cyclic annular and set up in go up base plate on the line frame, a plurality of set up respectively in go up the line frame set up electrically conductive piece in the groove, and a plurality of set up respectively in the base plate the distribution ring in the annular, the base plate has the several along the annular of radial interval arrangement, each distribution ring include ring body portion, by ring body portion upwards wears to establish the location portion of base plate, and a plurality of cyclic annular looks interval connect in ring body portion bottom edge, and collude and locate fixed part on the base plate, each fixed part contacts one of them corresponding electrically conductive piece and makes electric connection each other.

Preferably, the stator of the motor, wherein the substrate includes a top wall portion through which the positioning portion of the power distribution ring is inserted, an inner wall portion erected on an inner edge of the top wall portion, an outer wall portion erected on an outer edge of the top wall portion, a plurality of partition portions erected on the top wall portion and located between the inner wall portion and the outer wall portion in a radial direction, and a bottom wall portion covered on the inner wall portion and the outer wall portion, wherein the inner wall portion, the outer wall portion, and the partition portions are spaced to define the annular groove.

Preferably, the stator of the motor, wherein the fixing portion of each power distribution ring has an extension section extending downward from the ring body and located outside the inner wall portion of the substrate, a radial section extending radially inward from the extension section, and a hooking section extending upward from the radial section and located inside the inner wall portion.

Preferably, the upper frame includes a frame portion, and a plurality of connection portions annularly and alternately disposed on the frame portion, the connection portions respectively surround the installation groove, and the substrate further includes a plurality of connection portions disposed on the inner wall portion and respectively connected to the connection portions.

The invention has the beneficial effects that: the distribution ring is rotationally limited by the positioning part, is radially positioned with the substrate in a hooking mode through the fixing part, and is electrically connected with the conductive piece.

Drawings

FIG. 1 is an exploded perspective view illustrating a bobbin and a plurality of distribution rings of a conventional stator;

fig. 2 is a perspective view illustrating an embodiment of a stator of the motor of the present invention;

FIG. 3 is an exploded perspective view illustrating the assembly relationship between the stator assemblies;

fig. 4 is an exploded perspective view illustrating the upper line frame in the present embodiment;

FIG. 5 is an exploded perspective view illustrating the substrate and the plurality of power distribution rings in the present embodiment;

FIG. 6 is a cross-sectional view illustrating the disposition of the substrate and the power distribution ring;

fig. 7 is a perspective view illustrating one of the power distribution rings in the present embodiment; and

fig. 8 is a schematic view illustrating an assembly method of the present embodiment.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Referring to fig. 2 and 3, an embodiment of a stator 2 of a motor according to the present invention includes a core 3 wound with a plurality of coil windings (not shown), an upper bobbin 4 disposed on a top surface of the core 3, a substrate 5 disposed in a substantially annular shape above the upper bobbin 4, a plurality of conductive members 6 disposed on the upper bobbin 4, and a plurality of distribution rings 7 disposed on the substrate 5.

Referring to fig. 3 and 4, the upper bobbin 4 includes a frame portion 41 and a plurality of connection portions 42 protruding upward from a top surface of the frame portion 41 and spaced apart from each other at equal angles. Each connecting portion 42 defines a setting groove 421.

Referring to fig. 4, 5 and 6, the substrate 5 includes a top wall 51, an inner wall 52 erected on an inner edge of the top wall 51, an outer wall 53 erected on an outer edge of the top wall 51 at a distance from the inner wall 52 in a radial direction, two partitions 54 erected on the top wall 51 at a distance from the inner wall 52 and the outer wall 53 in a radial direction, a bottom wall 55 covering the inner wall 52, the outer wall 53 and the partitions 54, and a plurality of coupling portions 56 inwardly protruded on the inner wall 52 and respectively coupled to the coupling portions 42. The inner wall portion 52, the outer wall portion 53, and the partition portion 54 together define a plurality of concentric, radially spaced annular grooves 57. The connecting portion 42 and the coupling portion 56 are fitted to each other to achieve a combined function. The conductive members 6 are respectively inserted into the setting grooves 421 of the wire feeding frame 4.

Referring to fig. 5, 6 and 7, the number of the distribution rings 7 matches the number of the ring grooves 57, in this embodiment, three distribution rings 7 are provided in the ring grooves 57, and each distribution ring 7 includes a ring body 71 located in the corresponding ring groove 57 and having two ends spaced apart to form a gap, a positioning portion 72 extending from the ring body 71 upward through the top wall 51 of the substrate 5, and a plurality of fixing portions 73 connected to the bottom edge of the ring body 71 at intervals. Each of the fixing portions 73 has an extending portion 731 extending downward from the ring body portion 71 and located outside the inner wall portion 52, a radial portion 732 extending radially inward from the extending portion 731, and a hooking portion 733 extending upward from the radial portion 732 and located inside the inner wall portion 52. The extension segment 731, the radial segment 732, and the hooking segment 733 are cooperatively hooked on the inner wall portion 52, and the hooking segment 733 contacts and is fixed to a corresponding conductive member 6 by welding, so that the power distribution ring 7 and the conductive member 6 are electrically connected. The positioning portion 72 of the distribution ring 7 can limit the rotation to achieve the positioning effect, and the fixing portion 73 can be hooked on the inner wall portion 52 of the substrate 5 to achieve the radial positioning and electrical connection effects.

Referring to fig. 4, 5, and 8, the assembly method of the present embodiment is: first, the bottom wall 55 of the substrate 5 is detached to expose the ring grooves 57 (see fig. 6), then the distribution rings 7 are respectively placed in the ring grooves 57, so that the fixing portions 73 of the distribution rings 7 are respectively inserted into the combining portions 56 of the substrate 5, and the positioning portions 72 penetrate through the top wall 51, and then the bottom wall 55 of the substrate 5 is installed back. It should be noted that, since the distribution rings 7 are concentrically arranged in the radial direction, the diameters of the distribution rings 7 are slightly different. Then, the conductive members 6 are respectively disposed on the combining portions 56, and each conductive member 6 is fixed on the hooking section 733 of the fixing portion 73 in the corresponding combining portion 56 by welding, and is in contact with and electrically connected to the hooking section 733. Finally, the substrate 5, the conductive member 6, and the power distribution ring 7 are combined with the upper bobbin 4 in such a manner that the connecting portion 42 of the upper bobbin 4 is respectively fitted with the fixing portion 73 and the combining portion 56, the conductive member 6, and the fixing portion 73 are respectively located in the installation groove 421 of the connecting portion 42. The above-mentioned assembling method is only for reference, and actually, the assembling method can be assembled in different orders or different manners according to the requirement, which should not be limited thereto.

The positioning part 72 of the distribution ring 7 can limit the degree of freedom of the distribution ring 7 in rotation, and the fixing part 73 is clamped on the connecting part 42 in a hooking mode, so that the radial positioning of the distribution ring 7 can be achieved, meanwhile, the conductive piece 6 and the hooking section 733 are mutually contacted in a sticking mode, so that the conductive piece 6 can be electrically connected with the distribution ring 7, the components are simple in appearance design, and have no other difference except the diameter, so that each connecting part 42 can be combined with any fixing part 73, the effect of not limiting the installation directionality is achieved, the difficulty in configuration can be reduced, the universality is high, and the adaptability can be improved.

In summary, when the stator of the motor of the present invention is configured with the coil windings, different numbers of distribution rings 7 can be configured according to the requirement, and the conductive members 6 are electrically connected to the coil windings, so that the complicated configuration can be completed with simple components, thereby achieving the object of the present invention.

Claims

1. A stator of an electric motor is adapted for a plurality of coil windings; the method is characterized in that: the stator contains and supplies coil winding is the core of winding independently separately, set up in on the core and define out a plurality of cyclic annular looks interval arrangement set up the groove last line frame, be almost cyclic annular and set up in go up the base plate on the line frame, a plurality of set up respectively in go up the line frame set up the inslot electrically conductive piece, and a plurality of set up in the distribution ring of base plate, the base plate has the several along the annular of radial interval arrangement, the distribution ring set up respectively in the annular, each distribution ring include the ring body portion, by ring body portion upwards wears to establish the location portion of base plate, and a plurality of cyclic annular looks interval connect in ring body portion bottom edge, and collude and locate fixed part on the base plate, each fixed part contacts one of them corresponding electrically conductive piece and makes electric connection each other, the base plate is including supplying the top wall portion that location portion of distribution ring wore to establish, Locate immediately the interior wall portion of top wall portion inner edge, locate immediately the outer wall portion of top wall portion outer edge, a plurality of locate immediately on the wall portion of top wall portion and along radially being located interior wall portion reaches partition portion between the outer wall portion, and the lid is located interior wall portion reaches bottom wall portion on the outer wall portion, interior wall portion outer wall portion reaches the partition portion interval and define out the annular, the fixed part of each distribution ring have by ring body portion downwardly extending just is located the extension section in the interior wall portion outside of base plate, by the radial section of radial inside extension of extension section, and by the radial section upwards extends and is located the section is established to colluding of inner wall portion inboard.

2. The stator of an electric motor according to claim 1, wherein: the line feeding frame comprises a frame body part and a plurality of annular connecting parts arranged on the frame body part at intervals, the connecting parts are respectively surrounded with the setting grooves, and the substrate further comprises a plurality of combining parts arranged on the inner wall part and respectively connected with the connecting parts.