CN211089271U

CN211089271U - Insulation system, stator assembly, motor and domestic appliance

Info

Publication number: CN211089271U
Application number: CN201921951922.5U
Authority: CN
Inventors: 朱守民; 李剑雄; 陈超
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-24
Anticipated expiration: 2029-11-12

Abstract

The utility model relates to the technical field of electric machine, a insulation system, stator assembly, motor and domestic appliance are provided. The insulating structure includes: the insulating parts form wire slots between adjacent insulating parts, and the inner peripheries of the insulating parts are distributed along a set circumference; the insulating part includes: the first insulation part is internally provided with a first tooth slot and comprises a first sub insulation part and a second sub insulation part which are connected in a bent shape, the first sub insulation part is used for winding a first winding coil, two first sub insulation parts which are used for winding the same group of first winding coils deviate from a set diameter and extend towards the side where the first sub insulation parts are opposite, and the set diameter is a set circumference diameter corresponding to one end, close to the central axis of the set circumference, of the first sub insulation part; the second sub-insulating part is used for winding the second winding coil. The utility model provides an insulation system, stator assembly, motor and domestic appliance save the coil, and have improved the wire casing utilization ratio.

Description

Insulation system, stator assembly, motor and domestic appliance

Technical Field

The utility model relates to the technical field of electric machine, especially, relate to insulation system, stator assembly, motor and domestic appliance.

Background

In a small asynchronous motor, the stator structure of a conventional inner rotor motor needs to be inserted with wires from the inner circular notch of the stator. The stator winding ubiquitous of motor is stretched out that stator core tip is higher, the leakage inductance is big and the big problem of coil quantity to winding technology is complicated, and is high to workman's requirement, and the wire winding quality is difficult to control, and production efficiency is not high, leads to the volume production to use and has the limitation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an insulation system, the coil stretches out the high reduction of stator core tip, and the tip leakage inductance reduces, saves the coil, and the wire casing high-usage.

The utility model discloses still provide a stator assembly.

The utility model discloses still provide a motor.

The utility model discloses still provide a domestic appliance.

According to the utility model discloses insulation system of first aspect embodiment, include:

the insulation parts form wire grooves between adjacent insulation parts, and the inner peripheries of the insulation parts are distributed along a set circumference;

the insulating portion includes:

the first insulation part comprises a first sub insulation part and a second sub insulation part which are connected in a bent mode, the first sub insulation part is used for winding a first winding coil, two first sub insulation parts which are used for winding the same group of first winding coils deviate from a set diameter and extend towards the side where the first sub insulation parts are opposite to each other, and the set diameter is the diameter of the set circumference corresponding to one end, close to the central axis of the set circumference, of the first sub insulation part; the second sub-insulating part is used for winding a second winding coil.

According to the insulating structure provided by the embodiment of the utility model, the two first sub-insulating parts used for winding the first winding coil are close to each other, the distance between the two first sub-insulating parts is shortened, the length of the coil is shortened, and the coil is saved; and the space and the area of the wire slot corresponding to the first sub-insulation part are increased, and the utilization rate of the wire slot is improved. Simultaneously, first insulating part includes first sub-insulating part and the sub-insulating part of second that the form of buckling is connected, can form the boundary between first sub-insulating part and the sub-insulating part of second, and the coil can be respectively at the coiling of first sub-insulating part and the sub-insulating part of second, reduces the coil cross of first sub-insulating part and the sub-insulating part link of second and piles up, reduces the height that the coil stretches out stator core tip, reduces tip leakage inductance.

According to the utility model discloses an embodiment, be used for winding same group two of second winding coil the second sub-insulating part all deviates its connection the central line of first sub-insulating part and extend towards the other side place side. Further save the wire winding of second winding coil, increase the space and the utilization ratio of wire casing.

According to an embodiment of the present invention, a first barrier member is configured between the first sub-insulating portion and the second sub-insulating portion, the first barrier member extending along the axial direction of the setting circumference. The first barrier is used for separating the first winding coil from the second winding coil, preventing coils from being stacked in a crossed manner and reducing end leakage inductance.

According to an embodiment of the present invention, the insulating portion further includes:

a second insulation portion having a second slot formed therein, the second insulation portion extending radially along the set circumference;

the third insulating part, form the third tooth's socket in the third insulating part, the third insulating part is followed set for the circumference and radially extends, the third insulating part with the second insulating part is located respectively the both sides of first insulating part, the third insulating part with form the acute angle contained angle between the second insulating part. The insulating structure has insulating parts with various shapes, is suitable for stator tooth parts with various structural shapes, and enlarges the application range.

According to an embodiment of the present invention, the first sub-insulating portion is parallel to the second insulating portion on one side of the first insulating portion, and the second sub-insulating portion is parallel to the third insulating portion on the other side of the first insulating portion. So as to further homogenize the space of the wire slots and promote the uniform distribution of the magnetic field.

According to an embodiment of the invention, a second barrier member is configured on the second insulating portion, the second barrier member being configured to barrier the first winding coil, the second barrier member extending in the axial direction of the setting circumference.

According to the utility model discloses an embodiment, the one end that the second sub-insulating part was kept away from first sub-insulating part is constructed with the fender portion, the fender portion with the second insulating part with all be equipped with the interval between the third insulating part.

According to an embodiment of the invention, a third barrier member is configured on an end of the third insulating portion remote from the central axis of the setting circumference, the third barrier member extending in the axial direction of the setting circumference.

According to an embodiment of the present invention, the insulating portion is connected to form a hollow insulating frame. The integral frame structure is convenient to mount and improves the production efficiency.

According to an embodiment of the present invention, the insulating frame includes a first insulating frame and a second insulating frame, the first insulating frame and the second insulating frame are along the set circumference axial butt joint.

According to an embodiment of the present invention, a side of the insulating frame near the set circumference central axis is configured with a fourth barrier member, and the fourth barrier member encloses an annular structure.

According to an embodiment of the present invention, the fourth barrier member is configured with a binding portion, the insulating portion is configured with a protrusion, the binding portion and the protrusion are communicated with each other, and the binding portion and the protrusion are internally communicated with each other.

According to an embodiment of the present invention, the fourth barrier member is circumferentially configured with a plurality of posts.

According to the second aspect of the invention, the stator assembly comprises the insulation structure;

the first winding units comprise first winding coils and two first sub-insulating parts, and the first winding coils are wound on the two first sub-insulating parts;

and the second winding units comprise second winding coils and two second sub-insulating parts, and the second winding coils are wound on the two second sub-insulating parts.

According to an embodiment of the present invention, the first insulating portion is formed by a first insulating material and a second insulating material.

According to an embodiment of the present invention, in a case where the insulation portion includes a second insulation portion and a third insulation portion, the first winding unit further includes the second insulation portion, and the second winding unit further includes the third insulation portion.

According to the utility model discloses an embodiment, still include stator yoke portion with stator tooth, stator tooth with stator yoke portion is the disconnect-type structure.

According to an embodiment of the utility model, insulation system with be equipped with integral groove seal between the stator yoke portion.

According to the utility model discloses electric machine of third aspect embodiment, include the stator assembly.

According to the utility model discloses domestic appliance of fourth aspect embodiment, include the motor.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least: the first insulating part comprises a first sub insulating part and a second sub insulating part which are connected in a bent mode, a boundary is formed between the first sub insulating part and the second sub insulating part, and the coils can be wound on the first sub insulating part and the second sub insulating part respectively, so that the crossed stacking of the coils at the connecting ends of the first sub insulating part and the second sub insulating part is reduced, the height of the coils extending out of the end part of the stator core is reduced, and the leakage inductance of the end part is reduced. Meanwhile, the two first sub-insulating parts used for winding the same group of first winding coils deviate from the set diameter and extend towards the opposite side, so that the coils are saved, the utilization rate of the wire grooves is improved, and the uniform distribution of magnetic circuits is promoted.

Further, the utility model discloses the stator assembly of another embodiment, the coil stretches out high low, the tip of stator core tip is leaked and is felt little, save coil, simple structure.

Furthermore, the motor of another embodiment of the present invention has a simple structure and a low cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural schematic diagram of an assembled state of an insulation structure and a stator tooth portion according to an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

fig. 3 is a schematic structural diagram of a first insulating frame in an insulating structure according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the lower left perspective of FIG. 3;

FIG. 5 is a schematic top view of the structure of FIG. 3;

FIG. 6 is a side view schematic of the structure of FIG. 3;

fig. 7 is a schematic structural diagram of a second insulating frame in an insulating structure according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of the structure of FIG. 7 from an oblique lower perspective;

FIG. 9 is a schematic top view of the structure of FIG. 7;

FIG. 10 is a schematic side view of the test structure of FIG. 7;

fig. 11 is a schematic structural diagram of a stator tooth portion provided in an embodiment of the present invention;

fig. 12 is a schematic structural view of a stator yoke according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of an assembly process of the first insulating frame, the second insulating frame and the stator tooth portion according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of the first insulating frame, the second insulating frame and the stator teeth assembled and wound on the insulating structure according to the embodiment of the present invention;

FIG. 15 is a schematic top view of the structure of FIG. 14;

FIG. 16 is a schematic view of the assembly of the integral trench seal to the structure of FIG. 14;

FIG. 17 is a schematic view of the assembled state of FIG. 16;

FIG. 18 is a schematic view of the assembly of a stator yoke to the structure shown in FIG. 17;

FIG. 19 is a schematic view of the assembled state of FIG. 18;

FIG. 20 is a schematic view of the binding-wire between the integral type slot seal and the fourth barrier member of the structure shown in FIG. 19.

Reference numerals:

1: an insulating structure; 11: a first insulating portion; 111: a first sub-insulating section; 112: a second sub-insulating section; 113: a first barrier member; 114: a barrier portion; 115: a first tooth slot; 12: a second insulating section; 121: a second barrier member; 122: a second tooth slot; 13: a third insulating section; 131: a third barrier member; 132: a boss portion; 133: a third tooth slot; 14: a first wire slot; 15: a second wire slot; 16: an insulating frame; 161: a first insulating frame; 162: a second insulating frame; 163: a fourth barrier; 1631: a binding post; 1632: a wire tying section;

2: a stator tooth portion; 21: a first stator tooth; 22: a second stator tooth; 23: a third stator tooth; 24: a ring gear;

3: a stator yoke; 4: integral groove sealing; 5: a first winding coil; 6: a second winding coil; 7: and (6) binding the belt.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The embodiment of the utility model provides an embodiment, combine fig. 1 to fig. 20 to show, provide an insulation system 1, include: the insulating parts form wire slots between adjacent insulating parts, and the inner peripheries of the insulating parts are distributed along a set circumference; the insulating part includes: the first insulation part 11 is provided with a first slot 115 formed in the first insulation part 11, the first insulation part 11 comprises a first sub insulation part 111 and a second sub insulation part 112 which are connected in a bent shape, the first sub insulation part 111 is used for winding the first winding coil 5, two first sub insulation parts 111 which are used for winding the same group of first winding coils 5 deviate from a set diameter and extend towards the opposite side, and the set diameter is the diameter of a set circumference corresponding to one end close to the central axis of the set circumference; the second sub-insulating part 112 is used to wind the second winding coil 6.

Wherein, referring to fig. 18, the stator core includes stator teeth 2 and stator yokes 3, and the insulation structure 1 is used to partition the stator teeth 2, the stator yokes 3, and the coils. The first spline 115 is used for sleeving the first stator teeth 21, and the shape of the first spline 115 is matched with that of the first stator teeth 21. That is, the first stator teeth 21 include a first tooth portion and a second tooth portion connected in a bent shape.

Referring to fig. 2, 3, 7 and 11, the circumference is set to match the outer circumference of the ring gear 24 of the stator tooth portion 2, and when the stator tooth portion 2 is mounted, the insulation portion is sleeved on the stator tooth portion 2, and the inner ring of the insulation portion is attached to the outer circumference of the ring gear 24 of the stator tooth portion 2. Referring to fig. 11, the predetermined diameter refers to a diameter of a circumference, that is, when the insulation structure is sleeved on the stator tooth portion 2, the first stator tooth 21 is connected to a diameter of the ring gear 24 corresponding to one end of the ring gear 24, where the first stator tooth 21 is a stator tooth sleeved on the first insulation portion 11. Extending toward the side where the other is located, it can be understood that one of the two first sub-insulating portions 111 extends toward the direction where the other is located.

It can also be understood that the two first sub-insulating portions 111 used for winding the same group of first winding coils 5 are close to each other, so that the distance between the two first sub-insulating portions 111 corresponding to the first winding coils 5 is shortened, the length of the first winding coils 5 is further shortened, and the coils are saved; meanwhile, the two first sub-insulating parts 111 are mutually close to increase the space of the wire slot filled with the first winding coil 5, the area of the wire slot is increased, the utilization rate of the wire slot is improved, and uniform distribution of magnetic circuits is facilitated.

It should be noted that the first sub-insulating portion 111 and the second sub-insulating portion 112 are connected to form the first insulating portion 11 in a bent shape, the first insulating portion 11 is an integrated housing structure, and the winding regions of the first winding coil 5 and the second winding coil 6 are separated by the bent portions of the first sub-insulating portion 111 and the second sub-insulating portion 112, so as to reduce the cross stacking of the two sets of coils, further reduce the height of the coil extending out of the end portion of the stator core, reduce the end leakage inductance, and reduce the additional loss.

Specifically, as shown in fig. 1 to 10, the joint between the first sub-insulating portion 111 and the second sub-insulating portion 112 is bent, and the bent shape is a continuous arc shape with the same curvature (the first insulating portion 11 may be understood as an arc-shaped structure), or a bent shape with an inflection point (the first insulating portion 11 may be understood as an included angle). Further, the first sub-insulating part 111 and the second sub-insulating part 112 form an included angle, and when the first sub-insulating part 111 and the second sub-insulating part 112 both extend linearly, it can be understood that the connection ends of the first sub-insulating part 111 and the second sub-insulating part 112 form an included angle; when the first sub-insulating part 111 and the second sub-insulating part 112 both extend in a curve, it can be understood that a tangent of a connection end of the first sub-insulating part 111 and the second sub-insulating part 112 forms an included angle; when one of the first and second

sub-insulating portions

111 and 112 extends along a curved line and the other extends along a straight line, it can be understood that a tangent of the curved line forms an angle with the straight line.

In the insulating structure 1 of the embodiment, the first insulating portion 11 is bent, so that the structure is simple and the processing is simple; the cross stacking of the two groups of coils wound on the first insulating part 11 is reduced, the winding distances corresponding to the two groups of coils are shortened, and the area of the wire grooves is increased. When the specification of the insulation structure 1 is the same, the insulation structure 1 of the present embodiment can reduce the coil usage by 10% to 20% compared to the conventional insulation structure 1.

In another embodiment, both of the two second sub-insulating parts 112 for winding the same group of second winding coils 6 are offset from the center line of the first sub-insulating part 111 to which they are connected and extend toward the side where the other is located. This embodiment can shorten the length of second winding coil 6, helps saving the coil, and two sub-insulating part 112 of second draw close each other and make wire casing space and the increase of wire casing area that second winding coil 6 filled, improve the utilization ratio of wire casing, help the magnetic circuit equipartition.

In this embodiment, it can also be understood that, in combination with fig. 2, the first insulating portion 11 is disposed opposite to one of the adjacent first insulating portions 11, and the first insulating portion 11 is disposed opposite to the other of the adjacent first insulating portions 11. Here, the adjacent relationship only refers to the relationship between the first insulating portions 11, and when the second insulating portion 12 or the third insulating portion 13 described below is provided between two first insulating portions 11, the two first insulating portions 11 may also be understood as the adjacent first insulating portions 11.

Furthermore, the first sub-insulating part 111 and the second sub-insulating part 112 are in smooth transition connection, which is beneficial to uniform space of the wire slot formed between the two insulating parts and effective utilization of the space of the wire slot. And, the form of smooth and smooth transition also helps the magnetic field even, makes things convenient for the wire winding, and stable in structure.

In another embodiment, as shown in fig. 1 and 2, a first barrier member 113 is configured between the first sub-insulating portion 111 and the second sub-insulating portion 112, and the first barrier member 113 extends along an axial direction of a set circumference. The first barrier member 113 is provided on the outer wall of the first insulating portion 11 to separate the first winding coil 5 and the second winding coil 6 and prevent the first winding coil 5 and the second winding coil 6 from crossing. The first barrier 113 may be a strip-shaped insulating block or a strip-shaped insulating plate.

Further, the shape of the sidewall of the first barrier member 113 facing the first winding coil 5 is adapted to the winding shape of the first winding coil 5. The shape of the sidewall of the first barrier member 113 facing the second winding coil 6 is adapted to the winding shape of the second winding coil 6, so as to guide and limit the winding process of the coil.

In another embodiment, as shown in fig. 1 to 11, the insulating part further includes:

a second tooth slot 122 for sleeving the second stator teeth 22 is formed in the second insulating part 12, and the second insulating part 12 extends along the radial direction of the set circumference;

and a third tooth groove 133 for sleeving the third stator teeth 23 is formed in the third insulating part 13, the third insulating part 13 extends along the set circumference in the radial direction, the third insulating part 13 and the second insulating part 12 are respectively arranged at two sides of the first insulating part 11, and an acute included angle is formed between the third insulating part 13 and the second insulating part 12.

In which the radial direction of the circumference is set, i.e., the radial direction of the ring gear 24 in fig. 11.

As shown in fig. 11, when the stator tooth portion 2 has a plurality of stator teeth, and the second stator tooth 22 or the third stator tooth 23 is disposed between the first stator teeth 21, the second insulating portion 12 is disposed on the second stator tooth 22, the third insulating portion 13 is disposed on the third stator tooth 23, and the second insulating portion 12 and the third insulating portion 13 serve to isolate the stator tooth portion 2 from the coil. An acute included angle is formed between the third insulating part 13 and the second insulating part 12, and the uniform distribution and the increase of the area of the wire slot are facilitated.

Further, as shown in fig. 2, 5 and 9, the first sub-insulating portion 111 is parallel to the second insulating portion 12 on one side of the first insulating portion 11, and the second sub-insulating portion 112 is parallel to the third insulating portion 13 on the other side of the first insulating portion 11, so that the space distribution of the second slot 15 formed between the first insulating portion 11 and the second insulating portion 12 and the space distribution of the first slot 14 formed between the first insulating portion 11 and the third insulating portion 13 are more reasonable, that is, the space for winding the first winding coil 5 in the first slot 14 is larger, and the space for winding the second winding coil 6 in the second slot 15 is also larger, thereby improving the utilization rate of the slots and forming a uniform magnetic circuit.

Here, the parallel means that the center lines are parallel to each other, for example, the center line of the first sub-insulating portion 111 is parallel to the center line of the second insulating portion 12 on one side thereof, and the center line of the second sub-insulating portion 112 is parallel to the center line of the third insulating portion 13 on the other side thereof.

Furthermore, a second insulating part 12 or a third insulating part 13 can be arranged between the two first insulating parts 11, so that the structural uniformity and symmetry are good; a plurality of second insulating parts 12 or a plurality of third insulating parts 13 (not shown in the figure) can be arranged between two first insulating parts 11, and the stator assembly of multiple structures can be formed according to the stator tooth distribution condition adjustment of the stator tooth part 2, thereby being beneficial to product diversification and having wide product application range.

In another embodiment, as shown in fig. 1 and 2, the second insulating portion 12 is configured with a second barrier member 121, the second barrier member 121 is used for blocking the first winding coil 5, and the second barrier member 121 extends along the axial direction of the set circumference. The second barrier member 121 is located on the outer wall of the second insulating portion 12. When the first winding coil 5 is wound on the two first insulating portions 11 and the plurality of second insulating portions 12, the second barrier member 121 limits the first winding coil 5, thereby ensuring the winding quality of the coil.

In another embodiment, the end of the second sub-insulating portion 112 away from the first sub-insulating portion 111 is configured with a blocking portion 114, and the blocking portion 114 and the second insulating portion 12 and the third insulating portion 13 are respectively provided with a space therebetween, and the blocking portion 114 limits and blocks the end coil of the second sub-insulating portion 112.

In another embodiment, an end of the third insulating portion 13 remote from the central axis of the set circumference is configured with a third barrier member 131, the third barrier member 131 extending in the axial direction of the set circumference. The third barrier member 131 is used for blocking the coil at the end of the third insulating portion 13, so as to ensure that the coil is accurately wound in the limited space.

Further, the blocking portion 114 blocks the outer circumference of the coil in cooperation with the third blocking member 131.

In one embodiment, as shown in fig. 1 to 10 and 13, the plurality of insulating portions are connected to form a hollow insulating frame 16, and the plurality of insulating portions are connected to form an integral structure, so that the number of parts is reduced, the installation is convenient, and the automatic winding is facilitated by using an external winding machine.

Insulation system 1 in this embodiment is applicable to outside wire-wound tooth yoke isolating construction stator, solves the inside inconvenient problem of wire winding of stator of inner rotor motor to wire winding speed can promote by a wide margin, and operation simple process, production efficiency promotes by a wide margin.

In another embodiment, the first insulating portion 11, the second insulating portion 12, and the third insulating portion 13 may also be independent structures, and are respectively sleeved on corresponding stator teeth to perform the insulating and isolating functions.

Embodiments of the insulating frame 16 are provided below.

In another embodiment, the insulation frame 16 includes a first insulation frame 161 and a second insulation frame 162, and the first insulation frame 161 and the second insulation frame 162 are axially butted along a set circumference to wrap the stator teeth therein. The first insulating frame 161 and the second insulating frame 162 are axially butted along a set circumference, and it can be understood that the first insulating frame 161 and the second insulating frame 162 are inserted into both ends of the stator tooth portion 2 in the axial direction, and as shown in fig. 1 and 13, the first insulating frame 161 and the second insulating frame 162 divide the insulating frame 16 into an upper part and a lower part, so that the installation is simple.

In another embodiment, the difference from the above-described embodiment is that the first insulating frame and the second insulating frame are butted radially along a set circumference (not shown in the figure). It is understood that the first insulating frame and the second insulating frame divide the insulating frame 16 into left and right portions.

Similarly, the insulating frame 16 can be divided into a plurality of parts along the axial direction or the radial direction, and the structure is various and the installation is flexible.

In another embodiment, the side of the insulating frame 16 close to the set circumferential center axis is configured with a fourth barrier 163, and the fourth barrier 163 encloses an annular structure. The fourth barrier 163 extends in the axial direction of the set circumference, and the fourth barrier 163 limits the inner circumference of the first winding coil 5.

Specifically, the fourth barrier 163 blocks the inner periphery of the first winding coil 5, the first barrier 113 and the second barrier 121 separate and limit the first winding coil 5 and the second winding coil 6, and the third barrier 131 and the barrier 114 of the second sub-insulating portion 112 block and limit the outer periphery of the second winding coil 6, so that separation and limit of the coils are realized, and the coils are prevented from turning outwards.

In another embodiment, a binding-wire part 1632 is configured on the fourth blocking member 163, a protrusion 132 is configured on the insulating part, the protrusion 132 is communicated with the binding-wire part 1632, and the binding-wire part 1632 and the protrusion 132 are used for the binding-wire to pass through. The wire tying portion 1632 is a through hole or a through groove on the fourth barrier 163. The projection 132 and the binding-wire portion 1632 penetrate in the radial direction of the insulating frame 16. As shown in FIG. 20, the binding wire is bound to the upper side of the coil after passing through the binding portion 1632 and the convex portion 132, and the binding operation is simple.

Furthermore, a protruding portion 132 is formed on the third insulating portion 13, and the binding wire is the binding tape 7 made of insulating material. The protrusion 132 is located at one end or both ends of the third insulating portion 13, where the end of the third insulating portion 13 is an end along the axial direction of the stator tooth portion 2, and the protrusion 132 may be a plurality of types such as an arc-shaped protrusion groove, a rectangular protrusion groove, and the like, so as to facilitate the passing of the binding-wire.

In another embodiment, the fourth barrier 163 is circumferentially configured with a plurality of terminals 1631, and the ends and tails of the first winding coil 5 and the second winding coil 6 are respectively wound on different terminals 1631. When the insulating portion includes the third insulating portion 13, the post 1631 is located corresponding to the third insulating portion 13. When the insulating frame 16 is divided into the first insulating frame 161 and the second insulating frame 162 which are axially disposed, the terminal 1631 may be disposed on only one of the first insulating frame 161 or the second insulating frame 162. The binding portion 1632, the protrusion 132 and the terminal 1631 are disposed on the same structure.

Next, an embodiment of the insulating frame 16 of the stator assembly having a 4-pole 16 slot, square outer profile shape is provided.

Two sides of the first insulating part 11 are respectively provided with a second insulating part 12 and a third insulating part 13, the first insulating part 11 is symmetrically arranged with one second insulating part 12 or one third insulating part 13, and the first insulating part 11, the second insulating part 12 and the third insulating part 13 are connected to form a frame structure. A first wire groove 14 and a second wire groove 15 are formed on both sides of the first insulating portion 11, respectively. The second insulating portion 12 and the third insulating portion 13 are uniformly distributed in 4 in the circumferential direction of the insulating frame 16, the first insulating portion 11 is uniformly distributed in 8 in the circumferential direction of the insulating frame 16, and the first sub-insulating portion 111 and the second sub-insulating portion 112 form a 135 ° corner. The center line of the third insulating part 13 coincides with the symmetry axis of the square, the center line of the second insulating part 12 coincides with the diagonal of the square (the positions of the second insulating part 12 and the third insulating part 13 can be exchanged), the length of the second insulating part 12 is slightly longer than that of the third insulating part 13, and the square right-angle position space is fully utilized. The first winding coil 5 is wound in the first wire slot 14 across two second wire slots 15, and the second winding coil 6 is wound in the second wire slot 15 across two first wire slots 14.

In another embodiment of the present invention, a stator assembly is provided, including: the insulation structure 1 in the above embodiment adopts the stator assembly formed by the insulation structure 1, and further includes a plurality of first winding units and a plurality of second winding units. The stator assembly can adopt the insulation structure 1 of all the above embodiments, and at least has the beneficial effects brought by the above embodiments, which are not described herein again.

The stator adopts a distributed winding mode, the first winding unit comprises a first winding coil 5 and two first sub-insulating parts 111, and the first winding coil 5 is wound on the two first sub-insulating parts 111; the second winding unit includes a second winding coil 6 and two second sub-insulating portions 112, and the second winding coil 6 is wound around the two second sub-insulating portions 112.

A winding mode of the first winding unit and the second winding unit: the first winding unit and the second winding unit share one first insulating part 11, that is, one end of the first winding coil 5 and one end of the second winding coil 6 are wound on the same first insulating part 11, and the other end of the first winding coil 5 and the other end of the second winding coil 6 are wound on two different first insulating parts 11. It can also be understood that, as shown in fig. 15 to 20, the first wire slot 14 and the second wire slot 15 are respectively formed on both sides of the first insulating portion 11, the first winding coil 5 is wound between the two first wire slots 14, and the second winding coil 6 is wound between the two second wire slots 15. The first winding coil 5 and the second winding coil 6 are one of a main winding coil and a sub-winding coil, respectively. As shown in fig. 15, the positional relationship between the first winding coil 5 and the second winding coil 6 is indicated, the first winding coil 5 being a main winding coil and the second winding coil 6 being a sub-winding coil. In another winding method, the first winding coil 5 is a sub-winding coil, and the second winding coil 6 is a main winding coil.

The other winding mode of the first winding unit and the second winding unit comprises the following steps: the first winding unit and the second winding unit share two first insulation portions 11, that is, the first winding coil 5 and the second winding coil 6 can also be wound on two adjacent first insulation portions 11 at the same time. In this embodiment (not shown), the first winding coil 5 and the second winding coil 6 have the same function and are not classified as a main winding coil or a sub-winding coil.

In case the insulation structure 1 comprises a second insulation part 12 and a third insulation part 13, the first winding unit further comprises the second insulation part 12 and the second winding unit further comprises the third insulation part 13. That is, the first winding unit includes the first sub-insulating portions 111 of the two first insulating portions 11, the second insulating portion 12 (the second insulating portion 12 is one or more), and the first winding coil 5. The second winding unit includes the second sub-insulating portions 112 of the two first insulating portions 11, the third insulating portion 13 (the third insulating portion 13 is one or more), and the second winding coil 6. The distribution mode of the first winding unit and the second winding unit is favorable for increasing the area of the wire slot and promoting the uniform distribution of the magnetic field.

In another embodiment, with reference to fig. 18 to 20, the stator assembly further includes a stator tooth 2 and a stator yoke 3, the insulation structure 1 is disposed between the stator tooth 2 and the stator yoke 3, and the stator tooth 2 and the stator yoke 3 are separated structures, so as to facilitate winding and prevent coil overlapping.

Be equipped with integral groove between insulation system 1 and the stator yoke portion 3 and seal 4, the outer end of stator tooth is pegged graft in integral groove and is sealed 4, and the assembly of integral groove seal 4 is simple, further improves production efficiency.

Wherein, be equipped with on the integral groove seal 4 with bellying 132 looks adaptation notch, the ligature line runs through bellying 132 and notch and ligature.

By adopting the stator assembly of the embodiment, the full-automatic winding of the outer part of the stator of the inner rotor motor is realized, the technical process is simplified, the winding efficiency is improved, the manufacturing time of the stator is saved, the cost is reduced, and the automatic production is easier to realize.

Referring to fig. 13 to 20, the assembly process of the stator assembly in the above embodiment:

first, as shown in fig. 13, a first insulating frame 161 and a second insulating frame 162 are inserted into both ends of the stator tooth 2;

a second step of winding the first winding coil 5 and the second winding coil 6 on the insulating frame 16, as shown in fig. 14 and 15;

thirdly, as shown in fig. 16 and 17, after the winding is completed, the integral type groove seal 4 is inserted and connected to the periphery of the insulating frame 16;

a fourth step of mounting the stator yoke 3 outside the integrated slot seal 4, as shown in fig. 18 and 19;

fifth, as shown in fig. 20, the fourth barrier 163, the boss 132 and the integrated slot seal 4 of the insulating frame 16 are bound with the binding tape 7.

An embodiment of the utility model provides a motor is still provided, including foretell stator assembly. The motor can adopt the stator assemblies of all the above embodiments, and at least has the advantages brought by the above embodiments, and the details are not repeated herein.

An embodiment of the utility model also provides a household appliance, including foretell motor. The household appliance can adopt the motors of all the above embodiments, so that at least the advantages brought by the above embodiments are achieved, and the description is omitted here. The household appliance at least comprises a fan, a warm air blower and an exhaust fan, and other appliances can adopt the motor.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. An insulating structure, comprising:

the insulating portion includes:

2. The insulation structure according to claim 1, wherein the two second sub-insulation portions for winding the same group of the second winding coils are each offset from a center line of the first sub-insulation portion to which it is connected and extend toward a side where the other is located.

3. The insulation structure of claim 1, wherein a first barrier is configured between the first sub-insulation portion and the second sub-insulation portion, the first barrier extending in an axial direction of the set circumference.

4. The insulation structure according to claim 1, wherein the insulation portion further comprises:

the third insulating part, form the third tooth's socket in the third insulating part, the third insulating part is followed set for the circumference and radially extends, the third insulating part with the second insulating part is located respectively the both sides of first insulating part, the third insulating part with form the acute angle contained angle between the second insulating part.

5. The insulation structure of claim 4, wherein the first sub-insulation portion is parallel to the second insulation portion on one side of the first insulation portion, and the second sub-insulation portion is parallel to the third insulation portion on the other side of the first insulation portion.

6. An insulation structure as claimed in claim 4, wherein said second insulating portion is formed with a second barrier member for blocking said first winding coil, said second barrier member extending in an axial direction of said set circumference.

7. The insulation structure of claim 4, wherein an end of the second sub-insulation portion remote from the first sub-insulation portion is configured with a barrier, and a space is provided between the barrier and each of the second and third insulation portions.

8. An insulating structure according to claim 4, characterized in that a third barrier is configured on an end of the third insulating portion remote from the central axis of the set circumference, said third barrier extending in the axial direction of the set circumference.

9. The insulation structure according to any one of claims 1 to 8, wherein a plurality of the insulation parts are connected to form a hollow insulation frame.

10. The insulation structure of claim 9, wherein said insulation frame comprises a first insulation frame and a second insulation frame, said first insulation frame and said second insulation frame axially abutting along said set circumference.

11. An insulation structure as claimed in claim 9, characterized in that a side of the insulating frame adjacent to the set circumferential center axis is configured with a fourth barrier member, which encloses an annular structure.

12. The insulation structure according to claim 11, wherein the fourth barrier is configured with a wire-tying portion, the insulation portion is configured with a protrusion, the wire-tying portion and the protrusion are communicated, and the wire-tying portion and the protrusion are internally communicated with a wire-tying.

13. An insulation structure as claimed in claim 11, wherein the fourth barrier is circumferentially configured with a plurality of posts.

14. A stator assembly, comprising:

an insulating structure as claimed in any one of claims 1 to 13;

15. The stator assembly according to claim 14, wherein one or both of the first insulating portions are shared by adjacent first and second winding units.

16. The stator assembly of claim 14, wherein where the insulation comprises a second insulation and a third insulation, the first winding element further comprises the second insulation and the second winding element further comprises the third insulation.

17. The stator assembly of claim 14, further comprising a stator yoke and stator teeth, the stator teeth and the stator yoke being of a split configuration.

18. The stator assembly of claim 17, wherein an integral slot seal is disposed between the insulating structure and the stator yoke.

19. An electrical machine comprising a stator assembly according to any one of claims 14 to 18.

20. A household appliance comprising an electric machine according to claim 19.