CN216146163U

CN216146163U - Stator structure, rotor structure and seat fan

Info

Publication number: CN216146163U
Application number: CN202121855552.2U
Authority: CN
Inventors: 王晓璨
Original assignee: Huzhou Xiaowei Technology Co ltd
Current assignee: Huzhou Xiaowei Technology Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-03-29
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to a stator structure, a rotor structure and a seat fan, wherein a stator structure is formed by a plurality of groups of stator teeth, a plurality of groups of insulating frames, a plurality of groups of windings, a bearing unit and a stator back plate; the permanent magnets, the rotating shaft, the impeller and the rotor back plate form a rotor structure; the seat fan is composed of the rotor structure and the stator structure, and is short in axial length, high in integration level and high in space utilization rate.

Description

Stator structure, rotor structure and seat fan

Technical Field

The utility model relates to the field of automobile part equipment, in particular to a stator structure, a rotor structure and a seat fan.

Background

Although there is automatic air conditioner in the car in summer and can keep interior constant temperature of car, but because passenger's health and seat in close contact with, the contact part air is not circulated, be unfavorable for the sweat to get rid of, can make the human body feel uncomfortable, the ventilation circulation system who is unique to the seat ventilation, continuous with fresh air from the aperture outflow on seat cushion and the back, prevent buttock and back hydrops, improve human and seat contact part's circulation of air environment, even take for a long time, also can be dry and comfortable, but current seat fan axial length is longer, the integrated level is lower.

The utility model with the Chinese patent application number of CN201320141051 discloses a novel stator structure of a permanent magnet driving motor for an electric automobile, which consists of a stator tooth part and a stator yoke part, wherein the stator tooth part and the stator yoke part are oriented silicon steel sheets and are laminated in a bonding or riveting mode; the bottom of the stator tooth part is provided with a clamping groove structure, the stator yoke part is provided with a slot, the stator tooth part is fixedly connected with the slot of the stator yoke part in a matched mode through the clamping groove structure, and the stator winding is a concentrated winding and is wound on the stator tooth part. The stator tooth part and the yoke part are separated, the stator tooth part and the yoke part can be assembled after coils are wound on the tooth part iron core, and the stator tooth part lamination is manufactured by adopting oriented silicon steel, so that the slot fullness rate can be improved, the tooth part magnetic flux density can be improved, the eddy current loss is reduced, the motor performance is optimized, and good production manufacturability is ensured.

However, the stator structure is a stator structure of a non-axial motor, and further, the axial length of the stator structure is long, and thus the stator structure is not suitable for a region limited by space, such as an automobile seat.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, an object of the present invention is to provide a stator structure, in which stator teeth, an insulating frame and windings are sequentially nested from inside to outside and are integrally formed, so that the axial length of the stator structure is shortened, and the integration level is improved.

In order to achieve the purpose, the utility model provides the following technical scheme:

a stator structure comprising:

an insulating frame;

a plurality of sets of stator teeth; and

a plurality of sets of windings;

the plurality of groups of stator teeth and the insulating frame are integrally arranged; the plurality of groups of windings and the plurality of groups of stator teeth and the insulating frame which are integrally arranged are integrally formed.

As an improvement, a plurality of groups of stator teeth and the insulating frame are cast into a whole in an injection molding mode.

As an improvement, the plurality of groups of windings and the plurality of groups of stator teeth and the insulating frame which are integrally formed in a potting mode.

As an improvement, the stator structure further comprises a bearing unit, and the bearing unit is coaxially nested with the integrally formed groups of stator teeth and the insulating frame.

As an improvement, a plurality of groups of integrally formed stator teeth and the insulating frame are adhered to the stator back plate.

As an improvement, the stator back plate is provided with a circular arc.

As an improvement, the stator back plate, the plurality of groups of windings and the plurality of groups of stator teeth and the insulating frame which are integrally formed through epoxy resin encapsulation.

As an improvement, a plurality of groups of stator teeth, the insulating frame and a plurality of groups of windings are correspondingly nested from inside to outside in sequence.

The utility model also aims to provide a rotor structure, which reduces the influence of electromagnetic radiation of a motor on other equipment by bending a rotor back plate and using the rotor back plate as an electromagnetic shield.

a rotor structure which can be matched with the stator structure in a rotating way.

As an improvement, the rotor structure comprises:

a rotor back plate;

a plurality of permanent magnets;

a rotating shaft; and

an impeller;

the impeller with pivot integrated into one piece, the rotor backplate is installed on the impeller, a plurality of permanent magnet set up in on the rotor backplate.

As an improvement, the impeller and the rotating shaft are integrally formed in an injection molding mode.

As an improvement, the edge of the rotor back plate is bent.

As a modification, the permanent magnet is provided in a tile shape or a circular ring shape.

The utility model further aims to provide a seat fan, a rotating system is formed by matching a stator structure and a rotor structure, and an impeller and a rotating shaft of the rotor structure are integrally formed, so that the seat fan is high in integration level and strong in robustness.

a seat fan comprises the stator structure.

As an improvement, the rotor structure is further included.

As an improvement, the motor also comprises a driving plate which is arranged on the stator structure through a connecting piece.

The utility model has the beneficial effects that:

(1) the seat fan is applied to seat ventilation, the volume of the seat fan can be reduced, and particularly the axial length can be greatly reduced;

(2) according to the utility model, the seat fan and the rotating shaft are integrally cast, so that the integral integration level of the seat fan is improved;

(3) according to the seat fan, the stator back plate, the winding, the integrally formed stator teeth and the insulating frame are encapsulated through epoxy resin, so that the heat dissipation efficiency of the seat fan can be improved.

In conclusion, the automobile seat has the advantages of simple structure, ingenious design, high integration level and strong robustness of the seat fan and the like, and is particularly suitable for automobile seats.

Drawings

FIG. 1 is a schematic view of a stator structure;

FIG. 2 is an exploded view of the stator structure;

FIG. 3 is a schematic view of a rotor structure;

FIG. 4 is a cross-sectional structural view of a rotor structure;

FIG. 5 is a schematic view of a seat fan;

fig. 6 is a sectional view of the seat fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example one

As shown in fig. 1 and 2, a stator structure includes:

an insulating frame 1;

a plurality of sets of stator teeth 2; and

a plurality of sets of windings 3;

a plurality of groups of stator teeth 2 and the insulating frame 1 are integrally formed; the plurality of groups of windings 3 and the plurality of groups of stator teeth 2 and the insulating frame 1 which are integrally formed.

Note that the stator teeth 2 are provided separately.

Furthermore, a plurality of groups of stator teeth 2 and the insulation frame 1 are cast into a whole in an injection molding mode.

Furthermore, the plurality of groups of windings 3 are integrally formed with the plurality of groups of stator teeth 2 and the insulating frame 1 in an encapsulating manner.

Further, the stator structure further comprises a bearing unit 4, and the bearing unit 4 is coaxially nested with the integrally formed groups of the stator teeth 2 and the insulating frame 1.

The bearing unit 4 includes a bearing housing 41 and a bearing body 42.

Furthermore, a plurality of groups of stator teeth 2 and the insulating frame 1 which are integrally formed are adhered to the stator back plate 5.

Further, an arc is arranged on the stator back plate 5.

It should be noted that the stator back plate 5 is formed by stamping a whole piece of silicon steel, and then an arc is cut out by stamping or laser to reduce eddy current loss and further improve the efficiency of the motor.

Further, the stator back plate 5, the plurality of groups of windings 3, and the plurality of groups of stator teeth 2 and the insulating frame 1 which are integrally formed in a potting manner.

It should be noted that the material used for potting is epoxy resin, which has a heat-conducting property superior to that of air, and the heat-dissipating capacity of the motor can be improved by this method.

It should be noted that the stator back plate 5 of the present invention has three legs to fix the whole motor.

Furthermore, a plurality of groups of the stator teeth 2, the insulating frame 1 and a plurality of groups of the windings 3 are nested in sequence from inside to outside.

It should be noted that, the outer diameter of the stator in the above scheme is not more than 30mm, and the thickness is not more than 6mm, which cannot be realized by the traditional process.

Example two

As shown in fig. 3 and 4, a rotor structure is capable of being rotatably engaged with the stator structure described above.

Further, the rotor structure includes:

a rotor back plate 6;

a plurality of permanent magnets 7;

a rotating shaft 8; and

an impeller 9;

the impeller 9 with pivot 8 integrated into one piece, rotor backplate 6 is installed on the impeller 9, a plurality of permanent magnet 7 set up in on the rotor backplate 6.

The other end of the rotating shaft 8 opposite to the impeller 9 is connected to the bearing unit 4.

Further, the impeller 9 and the rotating shaft 8 are integrally formed in an injection molding mode.

Further, the permanent magnet 7 is provided in a tile shape or a circular ring shape.

It should be noted that, the impeller 9 and the rotating shaft 8 are integrally formed, so that the integration level of the motor is improved.

It should be further noted that the rotor back plate 6 is attached to the impeller 9, and the plurality of permanent magnets 7 are attached to the rotor back plate 6.

Further, the edge of the rotor back plate 6 is bent.

It should be noted that, the bending process of the rotor back plate 6 makes the rotor back plate 6 function as an electromagnetic shield, and reduces the influence of the electromagnetic radiation of the motor on other devices.

EXAMPLE III

As shown in fig. 5 and 6, a seat fan includes the above-described stator structure.

Further, the rotor structure is further included.

Further, a drive plate 51 is included which is mounted to the stator structure by the connector 10.

The connector 10 is preferably a fish-eye terminal, and the driving plate 51 is mounted on the stator back plate 5.

More recently, the rotor and stator configurations described above provide a 25% increase in the torque of the motor.

It is worth mentioning that the integration level of the seat fan is higher, the axial length of the seat fan is reduced, and the space utilization efficiency is improved.

Claims

1. A stator structure, comprising:

an insulating frame (1);

a plurality of sets of stator teeth (2); and

a plurality of sets of windings (3);

a plurality of groups of stator teeth (2) and the insulation frame (1) are integrally formed; the plurality of groups of windings (3) are sleeved on the insulating frame (1).

2. A stator structure according to claim 1, characterized in that several sets of said stator teeth (2) are cast integrally with said insulating frame (1) by means of injection moulding.

3. A stator structure according to claim 1, characterized in that said groups of windings (3) are integrated by means of potting with said groups of stator teeth (2) and said insulating frame (1) which are integrated.

4. A stator structure according to any one of claims 1-3, further comprising a bearing unit (4), wherein the bearing unit (4) is coaxially nested with the integrally formed sets of stator teeth (2) and the insulating frame (1).

5. A stator structure according to any of claims 1-3, characterized in that the integrally formed groups of stator teeth (2) and the insulating frame (1) are attached to the stator back plate (5).

6. A stator structure according to claim 5, characterized in that the stator back plate (5) is provided with a circular arc.

7. A stator structure according to claim 5, characterized in that the stator back plate (5), the plurality of groups of windings (3), and the plurality of groups of stator teeth (2) formed integrally with the insulating frame (1) are formed integrally by potting.

8. A stator structure according to claim 1, characterized in that a plurality of said sets of stator teeth (2), said insulating frame (1) and a plurality of said sets of windings (3) are correspondingly nested in sequence from inside to outside.

9. A rotor structure, characterized by a rotor structure which is rotatably engaged with a stator structure according to any one of claims 1-8.

10. A rotor structure according to claim 9, characterized in that the rotor structure comprises:

a rotor back plate (6);

a number of permanent magnets (7);

a rotating shaft (8); and

an impeller (9);

impeller (9) with pivot (8) integrated into one piece, install rotor backplate (6) on impeller (9), a plurality of permanent magnet (7) set up in on rotor backplate (6).

11. A rotor structure according to claim 10, characterised in that the impeller (9) is formed integrally with the shaft (8) by injection moulding.

12. A rotor structure according to claim 10, characterised in that the edges of the rotor back plate (6) are arranged bent.

13. A rotor structure according to claim 10, characterised in that the permanent magnets (7) are arranged in a tile or circular ring shape.

14. A seat fan comprising a stator structure according to any one of claims 1 to 8.

15. The seat fan of claim 14 further comprising the rotor structure of claim 13.

16. A seat fan according to claim 14, further comprising a drive plate (11) mounted to the stator structure by a connector (10).