CN217240413U

CN217240413U - Motor stator and axial flux motor thereof

Info

Publication number: CN217240413U
Application number: CN202122551805.3U
Authority: CN
Inventors: 陈拯民
Original assignee: Tongling Hardcore Technology Co ltd
Current assignee: Huzhou Hardcore Pai Technology Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-08-19
Anticipated expiration: 2031-10-22

Abstract

The utility model provides a motor stator and an axial flux motor, wherein the motor stator comprises a winding bracket, a plurality of winding modules, an upper pressure tongue, a lower pressure tongue and a connecting rod, and the winding bracket is provided with a fixing hole; the winding module comprises an inner iron core body, an outer winding and pole shoes extending out of the upper part and the lower part of the iron core body, wherein the pole shoes are provided with first through holes from the inner ring side to the outer ring side; the upper pressing tongue and the lower pressing tongue are correspondingly arranged on the upper end side and the lower end side of the winding module, second through holes are formed in the upper pressing tongue and the lower pressing tongue, and the connecting rod sequentially penetrates through the second through holes and the first through holes and is fixed to the fixing holes, so that the plurality of stator winding modules are fixed on the winding support along the circumferential direction. The utility model discloses a fixed block and lateral wall all can set up to the components of a whole that can function independently structure, and are very simple when the installation to fixed effectual, greatly reduced mounting process's complexity, the lateral wall can also set up multiple mounting means, satisfies the installation demand under the different scenes.

Description

Motor stator and axial flux motor thereof

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to motor stator and axial flux motor thereof.

Background

The motor stator is an important component of a motor such as a generator and a starter. The stator is composed of a stator core body, a stator winding and a machine base. The main function of the stator is to generate a rotating magnetic field, and the main function of the rotor is to be cut by magnetic lines in the rotating magnetic field to generate output current.

In the stator core winding unit, the stator assembly of the axial flux machine and the axial flux machine disclosed in chinese application CN108075589, the following are disclosed: in order to ensure that the stator core and the concentrated winding are firmly connected, inner side fixing glue is filled between the stator core and the concentrated winding. In order to control the telescopic size of the concentrated winding along the axial direction of the stator core, and in order to ensure that the stator core and the concentrated winding are firmly connected and the concentrated winding is not easy to disperse, interlayer fixing glue is filled between the adjacent winding coils. The method for fixing the fixing glue is also the most commonly used method in the prior art, has higher process requirements during manufacturing, and is favorable for fixing the fixing glue, and has the defects of difficult later-stage disassembly and difficult maintenance and installation.

In summary, the existing motor stator has the following defects:

1. the structure is not compact enough, the winding is fixed more complicated, and the volume and the weight of the motor are increased invisibly;

2. the structure is complicated, and outside components and parts are more when the installation is fixed, and the machining precision to the part requires very high, and technology cost is high to all very inconvenient when the maintenance dismouting, increased maintenance and maintenance cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a motor stator, it is fixed with the help of last tongue, lower tongue, connecting rod and lateral wall to the installation of winding module, goes up the tongue, presses tongue and lateral wall down and all can set up to components of a whole that can function independently structure, and convenient operation when the installation to fixed effectual reduces the complexity of manufacturing process, and the lateral wall can also set up multiple mounting means, satisfies the installation demand under the different scenes.

Specifically, the utility model provides a motor stator, it includes winding support, a plurality of winding modules, goes up the tongue, pushes down tongue and connecting rod, a plurality of winding modules set up in the outside of winding support and fix with the help of going up tongue, pushing down tongue and connecting rod, the winding support is last to be seted up the fixed orifices; the winding module comprises an inner iron core body, an outer winding and pole shoes extending out of the upper part and the lower part of the iron core body, wherein the pole shoes are provided with first through holes from the inner ring side to the outer ring side; the upper pressing tongue and the lower pressing tongue are correspondingly arranged on the upper end side and the lower end side of the winding module; the upper pressing tongue and the lower pressing tongue are provided with second through holes, and the connecting rod sequentially penetrates through the second through holes and the first through holes and is fixed to the fixing holes, so that the plurality of stator winding modules are fixed on the winding support along the circumferential direction.

Preferably, the outer ring sides of the iron core body and the pole shoe are provided with connected extending parts, and the upper pressing tongue and the lower pressing tongue are respectively abutted to the extending parts.

Preferably, the upper and lower pressing tongues have a limit structure matched with the outer contour of the extension part.

Preferably, the upper tongue depressor and the lower tongue depressor are of a split structure.

Preferably, an arc-shaped side wall is arranged between the upper pressing tongue and the lower pressing tongue, two edge portions of the arc-shaped side wall are provided with arc-shaped side plates matched with the winding outline, and the arc-shaped side plates can extend into the space between two adjacent winding modules.

Preferably, the motor stator further includes a side wall, a plurality of third through holes are uniformly formed in the upper portion and the lower portion of the side wall, and the connecting rod sequentially passes through the third through hole, the second through hole and the first through hole and is fixed to the fixing hole, so that the plurality of stator winding modules are fixed to the winding support along the circumferential direction.

Preferably, the side wall is an integral annular structure.

Preferably, the side wall comprises a plurality of arc-shaped blocks which are connected in sequence, two ends of each block are respectively provided with a folding edge, and the folding edges are provided with mounting holes.

Preferably, the surface of one or both ends of the rod body is provided with a thread.

Preferably, both end portions of the upper and lower tongues are provided with arc chamfers.

The utility model also provides an axial magnetic flux motor, it includes as above motor stator.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses simple structure installs fixedly with the help of last pressure tongue, lower pressure tongue and lateral wall to the winding module, and the part of using is less, the utility model discloses an go up and press the tongue, press tongue and lateral wall down and all can set up to components of a whole that can function independently structure, very simple when the installation to fixed effectual, greatly reduced mounting process's complexity, improved holistic installation rate and work efficiency.

(2) The utility model discloses because adopt mechanical structure to fix during the installation, it is very convenient when using the dismouting, can install the dismantlement under the different scenes as required again.

Drawings

Fig. 1 is an exploded schematic view of a motor stator according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of the winding module of the present invention;

FIG. 3 is a schematic structural view of an upper spatula and a lower spatula in a first embodiment of the present invention;

FIG. 4 is a schematic structural view of an upper spatula and a lower spatula in a second embodiment of the invention;

fig. 5 is an exploded view of a stator of an electric motor according to a second embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the present invention with an integrated side wall;

fig. 7 is a schematic structural view of the side wall of the present invention in a split type;

fig. 8 is a schematic top view of a third embodiment of the invention;

fig. 9 is an overall schematic top view of a fourth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that the present invention is not limited to the drawings and the following embodiments.

As used herein, the term "include" and its various variants are to be understood as open-ended terms, which mean "including, but not limited to. The terms "inner", "outer", "upper", "lower", and the like are used only to indicate a positional relationship between relative objects. The terms "first", "second" and the like are used merely to indicate different technical features and have no essential meaning.

Specifically, as shown in fig. 1 to 5, the utility model provides a motor stator, it includes winding support 1, a plurality of winding module 2, goes up the tongue 3, pushes down tongue 4 and connecting rod 7. The upper part and the lower part of each winding module 2 are respectively provided with an upper pressing tongue 3 and a lower pressing tongue 4, the plurality of winding modules 2 are uniformly arranged outside the outer side wall of the winding support 1 and are fixed by means of the upper pressing tongues 3, the lower pressing tongues 4 and a connecting rod 7, the upper pressing tongues 3 are arranged on the upper parts of the outer sides of the plurality of windings, and the lower pressing tongues 4 are arranged on the lower parts of the outer sides of the plurality of windings.

As shown in fig. 2, each winding module 2 includes an inner core body 21, an outer winding 22, and a pole piece 23 disposed at the upper and lower portions of the core body 21 and extending outside the winding 22, the outer sides of the core body 21 and the pole piece 23 are provided with a connecting extension 230, and the pole piece 23 is provided with a first through hole 231 from the inner ring side to the outer ring side. The winding 22 is wound outside the core body 21 and may have a winding wire (not shown) extending therefrom, and each winding module 2 has a trapezoidal structure as a whole.

In one embodiment of the application, the width of the inner side of the winding module 2 is smaller than the width of the outer side of the winding module 2. The inner side of the winding module 2 is likewise provided with one straight side and two arc-shaped sides. The outer and inner sides between two adjacent winding modules 2 have apertures.

The winding support 1 is provided with fixing holes (not shown). The upper pressing tongue 3 and the lower pressing tongue 4 are provided with second through holes 9, connecting rods 7 sequentially penetrate through the second through holes 9 and the first through holes 231 and are fixed to the fixing holes, and therefore the plurality of stator winding modules 2 are fixed to the winding support 1 along the circumferential direction.

In one embodiment of the present application, the upper and

lower tongues

3, 4 abut to the protrusion 230, respectively.

In one embodiment of the present application, the upper and

lower tongues

3, 4 have a stop structure 11 matching the outer profile of the protrusion 230.

In one embodiment of the present application, the upper pressing tongues 3 and the lower pressing tongues 4 are provided with arc-shaped chamfers 12 at both ends, and a hole for the winding wire of the winding 22 to protrude is formed between two adjacent upper pressing tongues 3 or between two adjacent lower pressing tongues 4.

In the first embodiment of the present application, as shown in fig. 1 and 3, the upper tongue 3 and the lower tongue 4 are of a separate structure.

In the second embodiment of the present application, as shown in fig. 4 and 5, the upper tongue 3 and the lower tongue 4 are of an integral structure, an arc-shaped side wall 71 is disposed between the upper tongue 3 and the lower tongue 4, two edge portions of the arc-shaped side wall 71 are provided with arc-shaped side plates 72 matching with the winding contour, and the arc-shaped side plates 72 can extend between two adjacent winding modules 2.

In the remaining embodiments of the present invention, as shown in fig. 6 to 9, a side wall 8 may also be provided outside, which includes the winding support 1, the plurality of winding modules 2, the upper tongue 3, the lower tongue 4, the connecting rod 7, and the side wall 8. The upper portion and the lower portion of each winding module 2 are respectively provided with an upper pressing tongue 3 and a lower pressing tongue 4, the winding modules 2 are uniformly arranged outside the outer side wall of the winding support 1 and are fixed through the upper pressing tongues 3, the lower pressing tongues 4, the connecting rods 7 and the side walls 8, the upper pressing tongues 3 are arranged on the upper portions of the outer sides of the windings, and the lower pressing tongues 4 are arranged on the lower portions of the outer sides of the windings. The side wall 8 is sleeved outside the upper tongue 3, the lower tongue 4 and the winding module 2. A plurality of third through holes 80 are uniformly formed in the upper and lower portions of the side wall 8, and the connecting rod 7 sequentially passes through the second through hole 9 and the first through hole 231 and is fixed to the fixing hole, so that the plurality of stator winding modules 2 are fixed to the winding support 1 in the circumferential direction.

In a third embodiment of the present application, as shown in fig. 6 to 7, the side wall 8 is an integral ring-shaped structure that is integrally disposed outside the upper and

lower tongues

3, 4 and the winding module 2.

In the fourth embodiment of the present application, as shown in fig. 8 and 9, the side wall 8 is provided as a block, the side wall 8 includes a plurality of arc-shaped blocks 82, two ends of each block 82 are respectively provided with a folded edge 83, the folded edge 83 is provided with a mounting hole 81, and the blocks 82 of the plurality of side walls 8 are fixed adjacent to each other by means of a connecting piece. In particular applications, the blocks 82 may be arranged in four, eight, or the remaining number. When mounting, the plurality of segments 82 of the side wall 8 are mounted and fixed by means of the connecting member.

In one embodiment of the present application, the connecting rod 7 is a screw rod, and the screw rod passes through the third through hole 81, the second through hole 9, and the first through hole 231 in sequence and is fixed to the fixing hole at the time of specific installation, so that the plurality of stator winding modules 2 are fixed to the winding frame 1 in the circumferential direction.

The working principle of the present invention is further described below:

when the winding support is installed, after the winding modules 2 are wound on the outer circumference of the winding support 1, the upper portion and the lower portion of each winding module 2 are respectively provided with an upper pressing tongue 3 and a lower pressing tongue 4, the upper pressing tongue 3 and the lower pressing tongue 4 can be split or integrated, and the winding support 1 is provided with fixing holes. The middle positions of the upper pressure tongue 3 and the lower pressure tongue 4 are respectively provided with a second through hole 9, and the connecting rod 7 sequentially passes through the second through hole 9 and the first through hole 231 and is fixed to the fixing holes, so that the plurality of stator winding modules 2 are fixed on the winding support 1 along the circumferential direction. In other embodiments, a side wall 8 may be further provided, a plurality of third through holes 80 are uniformly formed in the upper portion and the lower portion of the side wall 8, and the connecting rod 7 sequentially passes through the third through hole 80, the second through hole 9 and the first through hole 231 and is fixed to the fixing hole, so as to fix the plurality of stator winding modules 2 on the winding support 1 along the circumferential direction. The side walls can be arranged in a whole ring shape or in a split type, and the split type side walls are connected through a connecting piece. In specific application, the split type upper pressing tongue 3 and the lower pressing tongue 4, the integrated upper pressing tongue 3 and the lower pressing tongue 4, the split type side wall and the integrated side wall can be matched with each other for use.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor stator, characterized by: the winding support comprises a winding support, a plurality of winding modules, an upper pressure tongue, a lower pressure tongue and a connecting rod, wherein the winding modules are arranged on the outer side of the winding support and are fixed by means of the upper pressure tongue, the lower pressure tongue and the connecting rod;

the winding module comprises an inner iron core body, an outer winding and pole shoes extending out of the upper part and the lower part of the iron core body, wherein the pole shoes are provided with first through holes from the inner ring side to the outer ring side;

the upper pressing tongue and the lower pressing tongue are correspondingly arranged on the upper end side and the lower end side of the winding module, second through holes are formed in the upper pressing tongue and the lower pressing tongue, and the connecting rod sequentially penetrates through the second through holes and the first through holes and is fixed to the fixing holes, so that the plurality of winding modules are fixed on the winding support along the circumferential direction.

2. The motor stator of claim 1, wherein: and the outer ring sides of the iron core body and the pole shoe are provided with extension parts which are connected, and the upper pressing tongue and the lower pressing tongue are respectively abutted to the extension parts.

3. The motor stator of claim 2, wherein: the upper pressing tongue and the lower pressing tongue are provided with limiting structures matched with the outer contour of the extension part.

4. The motor stator of claim 1, wherein: the upper pressing tongue and the lower pressing tongue are of split structures.

5. The motor stator of claim 1, wherein: an arc-shaped side wall is arranged between the upper pressing tongue and the lower pressing tongue, two edge parts of the arc-shaped side wall are provided with arc-shaped side plates matched with the profile of the winding, and the arc-shaped side plates can extend into the space between two adjacent winding modules.

6. An electric machine stator according to any of claims 1-5, characterized in that: the motor stator further comprises a side wall, a plurality of third through holes are uniformly formed in the upper portion and the lower portion of the side wall, and the connecting rod sequentially penetrates through the third through holes, the second through holes and the first through holes and is fixed to the fixing holes, so that the plurality of winding modules are fixed on the winding support along the circumferential direction.

7. The electric machine stator of claim 6, wherein: the side wall is of an integral annular structure.

8. The motor stator of claim 6, wherein: the side wall comprises a plurality of arc-shaped blocks which are connected in sequence, two ends of each block are respectively provided with a folded edge, and the folded edges are provided with mounting holes.

9. The motor stator of claim 1, wherein: the connecting rod has an end cap and a rod body, and threads are provided on the surface of one or both ends of the rod body.

10. The electric machine stator of claim 1, wherein: and arc chamfers are arranged at the two end parts of the upper pressing tongue and the lower pressing tongue.

11. The utility model provides an axial magnetic flux motor which characterized in that: comprising a motor stator according to any of claims 1-10.