CN217590395U

CN217590395U - Stator core mechanism of tooth-slot-free motor and motor

Info

Publication number: CN217590395U
Application number: CN202221094709.9U
Authority: CN
Inventors: 糜鹏
Original assignee: Sanden Huayu Automotive Air Conditioning Co Ltd
Current assignee: Sanden Huayu Automotive Air Conditioning Co Ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-10-14
Anticipated expiration: 2032-05-09

Abstract

The utility model belongs to the technical field of the motor, a stator core mechanism and motor of no tooth groove motor are disclosed. The stator core mechanism of the toothless slot motor comprises a stator yoke component, a stator tooth component and a framework component. Wherein, evenly set up a plurality of draw-in grooves along the inboard circumference of stator yoke portion subassembly. The stator tooth assembly comprises a first inner ring and a plurality of teeth, and the teeth are uniformly radially arranged on the outer side of the first inner ring along the circumferential direction of the first inner ring. The framework assembly comprises a first framework and a second framework, the first framework and the second framework are connected in a buckling mode to form a plurality of first winding portions, a containing groove is formed in the middle of each first winding portion, and each tooth penetrates through the containing groove and the clamping groove to be clamped. The stator core mechanism of the slotless motor adopts the integral framework, and has the advantages of simple winding process, high assembly efficiency and low cost.

Description

Stator core mechanism of tooth-slot-free motor and motor

Technical Field

The utility model relates to the technical field of electric machines, especially, relate to a stator core mechanism and motor of no tooth groove motor.

Background

The permanent magnet synchronous motor is a synchronous motor which generates synchronous rotating magnetic fields by permanent magnet excitation. Because the permanent magnet synchronous motor has the advantages of low loss, high efficiency, convenient control, constant rotating speed, stable and reliable operation and the like, the permanent magnet synchronous motor is widely applied to a plurality of fields such as electromechanical equipment, robots, electric automobiles and the like.

Some permanent magnet synchronous motors do not generate a 'cogging effect' because stator cores adopt non-tooth-slot stator cores, and have the advantages of stable running speed, high control precision, small vibration and the like.

The stator core of a general slotless motor adopts an external winding mode, each coil is fixed by using an independent framework, so that the coils cannot be directly connected in series, and can only be connected in parallel and then connected in series in a welding mode, so that the winding process is complex, the assembly efficiency is low, and the cost is high.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an aspect, the utility model provides a stator core mechanism of no tooth groove motor adopts whole skeleton, has wire winding simple process, assembly efficiency height and low cost's advantage.

To achieve the purpose, the utility model adopts the following technical proposal:

a stator core mechanism for a gearless slot machine comprising:

the stator yoke assembly is uniformly provided with a plurality of clamping grooves along the circumferential direction of the inner side of the stator yoke assembly;

the stator tooth assembly comprises a first inner ring and a plurality of teeth, and the teeth are uniformly arranged on the outer side of the first inner ring in a radial shape along the circumferential direction of the first inner ring;

the skeleton subassembly, the skeleton subassembly includes first skeleton and second skeleton, first skeleton with second skeleton lock is connected and is formed a plurality of first wire winding portions, and is a plurality of the centre of first wire winding portion is equipped with the holding tank, every the tooth passes one holding tank and one the draw-in groove joint.

Optionally, the first framework includes a second inner ring and a plurality of second winding portions, the plurality of second winding portions are uniformly radially disposed on an outer side of the second inner ring along a circumferential direction of the second inner ring, and the second winding portions are radially provided with first through grooves along a radial direction of the second inner ring;

the second framework comprises a third inner ring and a plurality of third winding parts, the third winding parts are uniformly arranged on the outer side of the third inner ring in a radial shape along the circumferential direction of the third inner ring, the third winding parts and the second winding parts are arranged in a one-to-one correspondence manner, and second through grooves are formed in the third winding parts along the radial direction of the third inner ring;

when the first framework is connected with the second framework in a buckling mode, the second winding portion and the third winding portion are enclosed to form the first winding portion, and the first through groove and the second through groove are enclosed to form the accommodating groove.

Optionally, one end of the second winding portion, which is far away from the second inner ring, is provided with a first baffle, one end of the third winding portion, which is far away from the third inner ring, is provided with a second baffle, the first baffle and the second baffle are buckled and connected to form an end plate, and the end plate is abutted to the inner side wall of the stator yoke assembly.

Optionally, a gap is provided between adjacent end plates.

Optionally, a V-shaped insulating paper is arranged between adjacent first winding parts.

Optionally, two sides of the V-shaped insulating paper are provided with folded edges, the edge of the end plate is provided with a groove, and the folded edges are clamped with the groove.

Optionally, a winding plate is arranged on the first framework, and the winding plate is connected with the second inner ring; or

And a winding board is arranged on the second framework and connected with the third inner ring.

Optionally, the winding plate includes an annular body and a plurality of protrusions arranged at intervals along the circumferential direction of the body, and the protrusions are used for winding.

Optionally, a buckle is arranged on the protrusion to limit the wire wound on the protrusion from being pulled out.

According to another aspect of the present invention, the present invention also provides a slotless motor, including the stator core mechanism of the above slotless motor.

The utility model has the advantages that:

including first skeleton and second skeleton through setting up the skeleton subassembly to setting up first skeleton and second skeleton lock and connecting and form a plurality of first wire winding portions, making the copper line can directly wind in first wire winding portion, can directly realize establishing ties between each looks of above-mentioned stator core mechanism of slotless dynamo, with set up a plurality of independent skeletons among the prior art, and wire winding alone on independent skeleton compares, and the wire winding is simple, and assembly efficiency is higher.

Include first skeleton and second skeleton through setting up the skeleton subassembly to setting up first skeleton and second skeleton lock and connecting, the installation of the first skeleton of being convenient for and second skeleton, and first skeleton and second skeleton can integrated into one piece set up, and processing is simple, the volume production of being convenient for.

Drawings

Fig. 1 is an exploded view of a stator core mechanism of a gearless slot motor according to an embodiment of the present invention;

fig. 2 is an assembly view of a first frame and a second frame provided by an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first framework provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a second framework provided in the embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

fig. 6 is an assembly view of a stator core mechanism of a gearless slot motor according to an embodiment of the present invention.

In the figure:

100. a stator yoke assembly; 110. a card slot; 200. a stator tooth assembly; 210. a first inner ring; 220. teeth; 300. a skeletal assembly; 310. a first skeleton; 311. a second inner ring; 312. a second winding portion; 313. a first through groove; 320. a second skeleton; 321. a third inner ring; 322. a third winding portion; 323. a second through groove; 330. a first winding portion; 340. accommodating grooves; 400. an end plate; 410. a first baffle plate; 420. a second baffle; 430. a groove; 500. v-shaped insulating paper; 600. a wire winding plate; 610. a body; 620. a protrusion; 621. and (5) buckling.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a stator core mechanism of no tooth groove motor adopts whole skeleton to wind, has wire winding simple process, assembly efficiency height and low cost's advantage.

Specifically, as shown in fig. 1 and 2, the stator core mechanism of the slotless motor includes a stator yoke assembly 100, a stator tooth assembly 200, and a bobbin assembly 300. Wherein, a plurality of slots 110 are uniformly arranged along the circumference of the inner side wall of the stator yoke assembly 100 for connecting with the stator tooth assembly 200. The stator tooth assembly 200 includes a first inner ring 210 and a plurality of teeth 220, the plurality of teeth 220 are radially and uniformly disposed on the outer side of the first inner ring 210, and the teeth 220 are disposed in one-to-one correspondence with the slots 110. The skeletal assembly 300 includes a first skeleton 310 and a second skeleton 320. The first frame 310 and the second frame 320 are buckled to form an integral frame. When the first bobbin 310 and the second bobbin 320 are fastened to each other, a plurality of first winding portions 330 are formed, and the wires are wound around the first winding portions 330 to form a coil. An accommodating groove 340 is formed in the middle of each first winding part 330, and each tooth 220 passes through one accommodating groove 340 to be clamped with one clamping groove 110. The bobbin assembly 300 is made of an insulating material for insulating the coil from the stator teeth 220.

In this embodiment, 12 slots 110 are disposed on the stator yoke assembly 100, 12 teeth 220 are disposed on the stator tooth assembly 200, the first bobbin 310 and the second bobbin 320 are fastened to form 12 first winding portions 330, and an accommodating groove 340 is disposed in the middle of each first winding portion 330, so that 12 accommodating grooves 340 are disposed in total. When the stator core mechanism of the toothless slot motor is assembled, the framework component 300 and the stator tooth component 200 are installed together, then winding is carried out on the first winding parts 330, 3 wires are used in total, each wire is uniformly wound on 4 adjacent first winding parts 330, each wire has two end parts, one end part of each wire is directly connected in series, and the other end parts are respectively used as three phases of the electronic core mechanism of the toothless slot motor 220. Compared with the independent winding and installation of the toothless 220-slot motor coil in the prior art, the framework component 300 can realize the common winding of multiple groups, can directly connect the wires in series, and has simple structure and high assembly efficiency. Of course, in other embodiments, the number of the slots 110 and the number of the teeth 220 may be other, and may be set according to actual needs.

Optionally, in an embodiment, a mounting groove may be formed along an edge of the first framework 310, an insertion portion is disposed along an edge of the second framework 320, and the insertion portion is inserted into the mounting groove, so that the first framework 310 and the first framework 310 are fastened and connected. In other embodiments, the first frame 310 and the second frame 320 may be connected in other manners, and the first frame 310 and the second frame 320 are buckled and connected to facilitate installation between the first frame 310 and the stator tooth assembly 200 according to actual needs.

Further, as shown in fig. 3, the first bobbin 310 includes a second inner ring 311 and several second winding portions 312. Wherein the diameter of the second inner ring 311 matches the diameter of the first inner ring 210. The second winding portions 312 are uniformly disposed outside the second inner ring 311 in a radial shape along the circumferential direction of the second inner ring 311. Along the radial direction of the second inner ring 311, a first through groove 313 is opened on the second winding portion 312. As shown in fig. 4, the second bobbin 320 includes a third inner ring 321 and a plurality of third winding portions 322. The diameter of the third inner ring 321 is communicated with the diameter of the second inner ring 311, so that the first framework 310 and the second framework 320 are connected in a buckling manner. The third winding portions 322 are uniformly disposed outside the third inner ring 321 along the circumferential direction of the third inner ring 321, and are radial. The third winding portion 322 has a second through-groove 323 formed along a radial direction of the third inner ring 321. When the first frame 310 and the second frame 320 are fastened, the first winding portion 330 and the second winding portion 312 enclose to form the first winding portion 330, and the first through groove 313 and the second through groove 323 enclose to form the receiving groove 340.

Optionally, the depth of the first through groove 313 may be the same as or different from the depth of the second through groove 323, and may be set according to actual needs. The depth of the first through groove 313 and the depth of the second through groove 323 are preferably the same, and the diameters of the second inner ring 311 and the third inner ring 321 are the same, so that the structures of the first framework 310 and the second framework 320 are different except the connecting part, and the structures and the sizes of the rest parts are the same, so that the mold manufacturing is facilitated, and the production cost is reduced.

Preferably, a first baffle 410 may be disposed at an end of the second winding portion 312 far from the second inner ring 311, and a second baffle 420 may be disposed at an end of the third winding portion 322 far from the third inner ring 321. When the first frame 310 and the second frame 320 are fastened and connected, the first baffle 410 and the second baffle 420 are also fastened and connected, the first top plate and the second baffle 420 are fastened and connected to form the end plate 400, and the end plate 400 abuts against the inner side wall of the stator yoke assembly 100. By the end plate 400, on one hand, the coil wound on the first winding part 330 can be limited, and the coil can be fixed better; on the other hand, the baffle can be made of insulating materials, so that the insulativity between the lead and the stator yoke assembly 100 can be improved, and the circuit is prevented from being influenced when the voltage in the lead is higher to break down the insulating film outside the lead.

Preferably, a gap between the adjacent end plates 400 is provided so that it can pass a pin, and a wire is conveniently mounted on the first winding part 330 through the gap between the end plates 400.

Preferably, since there are 3 free ends of the wires and another 3 ends of the wires connected in series after the stator core mechanism of the slotless motor is installed, in order to make the structure of the stator core mechanism of the slotless motor more compact and beautiful, a winding part may be provided to wind the ends of the wires and the redundant circuits on the winding board 600, which is beneficial to improving the beauty of the circuits. In one embodiment, the wire winding plate 600 may be disposed on the first bobbin 310; in other embodiments, the winding board 600 may also be disposed on the second frame 320, and may be disposed according to actual needs.

Further, with continued reference to fig. 3, the wire winding plate 600 may include a body 610 and a plurality of protrusions 620 circumferentially spaced from the body 610. The body 610 is a ring structure, and the outer edge of the body 610 is connected to the second inner ring 311 of the first frame 310 or the third inner ring 321 of the second frame 320. The wire may be wound around the protrusion 620.

Preferably, as shown in fig. 5, a buckle 621 may be disposed on the protrusion 620, the buckle 621 may be disposed on the top of the protrusion 620, and the buckle 621 can prevent the wire from coming off the top of the protrusion 620 along the length direction of the protrusion 620, thereby ensuring the reliability of wire installation.

Further, when the voltage in the coil wound on the first winding portion 330 is high, there is a risk that a creepage distance required for insulation between the coil and the stator core mechanism of the above-described slotless motor is insufficient, and further, discharge of current flowing along the surface of the insulating member between the coil and each conductive member of the stator core mechanism of the above-described slotless motor is caused, so that the leakage current is high. Therefore, as shown in fig. 6, V-shaped insulating paper 500 may be disposed between the connected first winding parts 330 to increase the insulating performance, thereby improving the safety of the stator core mechanism of the slotless motor.

Preferably, the V-shaped insulating paper 500 may be provided with flanges at both sides thereof, and a groove 430 may be provided on the end plate 400 such that the flanges are engaged with the groove 430. The thickness of the flange may be less than or equal to the depth of the groove 430. On one hand, by arranging the groove 430, the V-shaped insulating paper 500 can be better fixed, which is beneficial to ensuring the operational reliability of the V-shaped insulating paper 500 when the stator core mechanism of the slotless motor vibrates. And is beneficial to the installation and the disassembly of the V-shaped insulating paper 500; on the other hand, the V-shaped insulating paper 500 can be prevented from protruding out of the end plate 400, and the V-shaped insulating paper 500 can be prevented from being pressed by the abutment between the end plate 400 and the stator yoke assembly 100, which is advantageous for protecting the V-shaped insulating paper 500 from being damaged.

The utility model also provides a no tooth's socket motor, including foretell no tooth's socket motor's stator core mechanism.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A stator core mechanism of a slotless motor, comprising:

the stator yoke assembly (100) is provided with a plurality of clamping grooves (110) uniformly along the circumferential direction of the inner side of the stator yoke assembly (100);

the stator tooth assembly (200), the stator tooth assembly (200) comprises a first inner ring (210) and a plurality of teeth (220), and the teeth (220) are uniformly arranged on the outer side of the first inner ring (210) in a radial shape along the circumferential direction of the first inner ring (210);

skeleton subassembly (300), skeleton subassembly (300) include first skeleton (310) and second skeleton (320), first skeleton (310) with second skeleton (320) lock is connected and is formed a plurality of first wire winding portion (330), and is a plurality of the centre of first wire winding portion (330) is equipped with holding tank (340), every tooth (220) pass one holding tank (340) and one draw-in groove (110) joint.

2. The stator core mechanism of the toothless slot motor as set forth in claim 1, wherein the first bobbin (310) comprises a second inner ring (311) and a plurality of second winding parts (312), the plurality of second winding parts (312) are uniformly arranged at the outer side of the second inner ring (311) in a radial manner along the circumferential direction of the second inner ring (311), and the second winding parts (312) are provided with first through slots (313) in the radial direction of the second inner ring (311);

the second framework (320) comprises a third inner ring (321) and a plurality of third winding parts (322), the plurality of third winding parts (322) are uniformly arranged on the outer side of the third inner ring (321) in a radial shape along the circumferential direction of the third inner ring (321), the plurality of third winding parts (322) and the plurality of second winding parts (312) are arranged in a one-to-one correspondence manner, and the third winding parts (322) are provided with second through grooves (323) along the radial direction of the third inner ring (321);

when the first framework (310) is connected with the second framework (320) in a buckling mode, the second winding portion (312) and the third winding portion (322) are enclosed to form the first winding portion (330), and the first through groove (313) and the second through groove (323) are enclosed to form the accommodating groove (340).

3. The stator core mechanism of the toothless slot motor as claimed in claim 2, wherein a first baffle (410) is disposed at an end of the second winding portion (312) far away from the second inner ring (311), a second baffle (420) is disposed at an end of the third winding portion (322) far away from the third inner ring (321), the first baffle (410) and the second baffle (420) are connected in a snap-fit manner to form an end plate (400), and the end plate (400) abuts against an inner side wall of the stator yoke assembly (100).

4. A stator core arrangement of a gearless slot machine according to claim 3, characterized in that there is a gap between adjacent end plates (400).

5. The stator core mechanism of the slotless motor recited in claim 4, wherein a V-shaped insulating paper (500) is provided between the adjacent first winding parts (330).

6. The stator core mechanism of the toothless slot motor as claimed in claim 5, wherein the V-shaped insulating paper (500) is provided with folded edges at two sides, the end plate (400) is provided with a groove (430) at the edge, and the folded edges are clamped with the groove (430).

7. The stator core mechanism of a toothless slot motor as claimed in any of claims 2-6, characterized in that a winding plate (600) is arranged on the first bobbin (310), and the winding plate (600) is connected with the second inner ring (311); or

And a winding board (600) is arranged on the second framework (320), and the winding board (600) is connected with the third inner ring (321).

8. The stator core mechanism of the toothless slot motor as claimed in claim 7, wherein the winding plate (600) comprises a ring-shaped body (610) and a plurality of protrusions (620) arranged along the circumference of the body (610) at intervals, the protrusions (620) are used for winding wire.

9. The stator core mechanism of the slotless motor according to claim 8 wherein a catch (621) is provided on the protrusion (620) to restrict the wire wound on the protrusion (620) from coming out.

10. A gearless slot machine comprising a stator core mechanism of a gearless slot machine according to any of claims 1-9.