CN220605620U

CN220605620U - Motor stator

Info

Publication number: CN220605620U
Application number: CN202322141509.5U
Authority: CN
Inventors: 朱刚; 赵坚; 李育强; 谢进英; 李素容
Original assignee: Yubo Technology Jiangmen Co ltd
Current assignee: Yubo Technology Jiangmen Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-03-15
Anticipated expiration: 2033-08-10

Abstract

The utility model discloses a motor stator, which relates to the technical field of motors and comprises a cylindrical outer framework, a cylindrical iron core coaxially fixed in the outer framework, a plurality of teeth arranged on the inner wall of the iron core, a plurality of coils arranged at intervals on the teeth, a sealing sleeve inserted in the center of the iron core, and a left annular sealing cover plate and a right annular sealing cover plate sleeved at the left end and the right end of the sealing sleeve respectively; the sealing sleeve, the left annular sealing cover plate, the right annular sealing cover plate, the coil and the teeth enclose to form a plurality of ventilation cavities, the ventilation cavities are uniformly distributed around the middle shaft collar of the iron core, the ventilation cavities are sequentially communicated to form ventilation channels which are distributed around the middle shaft collar of the iron core, an inlet of each ventilation channel is provided with an air inlet pipe which is used for extending to the blowing side of the motor cooling fan, and an outlet of each ventilation channel is provided with an air outlet pipe which is used for extending to the outer side of the motor housing. When the motor stator is used for a motor, the motor can keep lower working temperature under the high-load working condition, the service life of the motor is prolonged, and the motor stator has a good heat dissipation effect.

Description

Motor stator

Technical Field

The utility model relates to the technical field of motors, in particular to a motor stator.

Background

Currently, heat dissipation design of a motor is generally implemented by providing heat dissipation fins or heat dissipation fins on an outer wall of a motor housing. The design can improve the heat dissipation effect of the motor to a certain extent, but the heat dissipation capacity is limited due to the limitation of the size of the shell and the area of the heat dissipation fins, and particularly under the high-load running condition or long-time running, the heat dissipation requirement of the motor is still difficult to completely meet.

In the prior art, heat generated during the operation of the motor is mainly concentrated on coils inside a motor stator, and the space inside the stator is relatively limited, so that the heat dissipation effect is poor. The traditional heat dissipation mode can not fully utilize the internal space of the stator and can not effectively bring out the generated heat.

Disclosure of Invention

The utility model aims to provide a motor stator which can better utilize the space inside a motor and quickly and effectively radiate generated heat.

The technical scheme adopted by the utility model is as follows:

the motor stator comprises a cylindrical outer framework, a cylindrical iron core coaxially fixed in the outer framework, a plurality of teeth arranged on the inner wall of the iron core, a plurality of coils arranged on the teeth at intervals, a sealing sleeve inserted in the center of the iron core, and a left annular sealing cover plate and a right annular sealing cover plate sleeved at the left end and the right end of the sealing sleeve respectively; the utility model discloses a motor cooling fan, including motor housing, left annular seal cover, right annular seal cover, coil and tooth enclose and close and form a plurality of ventilation chambeies, the ventilation chambeies centers on the axle is to evenly arranging in the iron core, the ventilation chambeies communicate in proper order and form centers on the axle is to the air channel of distribution in the iron core, the air inlet pipe that is used for stretching to motor cooling fan bloies the side is established to the import of air channel, the outlet of air channel is established and is used for stretching to the play tuber pipe in the motor housing outside.

In a preferred embodiment of the present utility model, for the air duct, two adjacent air cavities are communicated through an air vent, and the air vent is opened at a tooth between two adjacent coils.

In a preferred embodiment of the present utility model, the left annular sealing cover plate and the right annular sealing cover plate are detachably connected to the end of the outer skeleton through bolts.

In a preferred embodiment of the present utility model, the port of the air inlet pipe is in a horn structure.

In a preferred embodiment of the present utility model, the sealing sleeve is provided with a plurality of tooth-displaying through holes, and the teeth face the tooth-displaying through holes in a one-to-one correspondence manner.

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

1) The ventilation system of the motor stator has an optimized design, and heat generated in the motor is effectively taken away through a ventilation cavity surrounding the center of the iron core. When the motor is assembled, the heat generated by each coil is discharged to the outside atmosphere from the air outlet pipe together through the air inlet channel by blowing the air to the air inlet pipe through the cooling fan at the tail part of the motor. The heat dissipation design enables the motor to keep a lower working temperature in the long-time running process, so that the stability and the service life of the motor are improved.

2) The left annular sealing cover plate and the right annular sealing cover plate are detachably connected to the end head of the outer framework through bolts. The design makes the motor easily detach the sealing cover plate when maintenance or overhaul is needed, is convenient for maintenance personnel to carry out maintenance operation, and reduces maintenance time and cost.

3) The port of the air inlet pipe is in a horn-shaped structure. The design can effectively guide wind to enter the ventilating duct, so that the motor can obtain better heat dissipation effect during working. The horn-shaped air inlet can also reduce wind resistance and improve ventilation efficiency.

In order to make the above objects, features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a main sectional structural view of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a left side block diagram of the present utility model;

in the figure: 1. an outer skeleton; 2. an iron core; 3. teeth; 4. a coil; 5. sealing sleeve; 6. an air inlet pipe; 7. an air outlet pipe; 8. a left annular sealing cover plate; 9. a right annular sealing cover plate; 10. a ventilation chamber; 11. and (3) a vent hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

Referring to fig. 1, 2 and 3, the present utility model provides a motor stator, which includes the following components:

exoskeleton 1: this is a cylindrical structure for providing overall support and protection of the motor stator.

Cylindrical iron core 2: the iron core 2 is coaxially fixed in the outer frame 1 and is a main magnetic circuit component of the motor stator.

Tooth 3: a plurality of teeth 3 are provided on the inner wall of the core 2, the teeth 3 being used to enhance the magnetic field effect and to provide electromagnetic induction of the stator.

Coil 4: the coils 4 are arranged between the teeth 3 at intervals, and each coil 4 corresponds to one tooth 3 and is used for generating an electromagnetic field of the stator.

Sealing sleeve 5: a sealing sleeve 5 inserted in the center of the core 2 is used to construct a ventilation cavity 10.

Annular seal cover plate: the left annular sealing cover plate 8 and the right annular sealing cover plate 9 are respectively sleeved at the left end and the right end of the sealing sleeve 5 and are detachably connected to the end head of the outer framework 1 through bolts. Their function is to construct the ventilation chamber 10.

Design of ventilation system:

ventilation chamber 10: a plurality of ventilation cavities 10 are formed by enclosing the sealing sleeve 5, the annular sealing cover plate, the coil 4 and the teeth 3, and the ventilation cavities 10 are uniformly distributed around the central axis of the iron core 2.

Ventilation duct: adjacent ventilation cavities 10 are connected by ventilation holes 11, and these ventilation holes 11 are opened in teeth 3 between adjacent two coils 4, forming ventilation channels distributed around the central axis of iron core 2.

And an air inlet pipe 6: the inlet of the air duct is provided with an air inlet pipe 6 which extends to the blowing side of the motor radiator fan, and the port of the air inlet pipe 6 is designed into a horn-shaped structure so as to better guide the air inlet.

Air outlet pipe 7: the outlet of the air duct is provided with an air outlet pipe 7 which extends to the outer side of the motor housing, so that heat generated by each coil 4 is discharged to the outside atmosphere together from the air outlet pipe 7.

Through the optimized ventilation system design, the motor stator can effectively take away heat generated in the motor, so that the motor can keep a lower working temperature in the long-time operation process, and the stability and the service life of the motor are improved.

In an alternative embodiment of the present utility model, the teeth 3 may be divided into long teeth and short teeth arranged at intervals according to the motor shaft length direction, wherein the coil 4 is provided to the short teeth, and the long teeth are provided with ventilation holes 11 to communicate adjacent two ventilation chambers 10, where adjacent refers to adjacent in the ventilation direction.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The motor stator comprises a cylindrical outer framework (1), a cylindrical iron core (2) coaxially fixed in the outer framework (1), a plurality of teeth (3) arranged on the inner wall of the iron core (2) and a plurality of coils (4) arranged on the teeth (3) at intervals, and is characterized by further comprising a sealing sleeve (5) inserted in the center of the iron core (2), and a left annular sealing cover plate (8) and a right annular sealing cover plate (9) sleeved at the left end and the right end of the sealing sleeve (5) respectively; seal cover (5), left annular seal cover plate (8), right annular seal cover plate (9), coil (4) and tooth (3) enclose and form a plurality of ventilation chambeies (10), ventilation chambeies (10) are centers on the axial evenly arranged in iron core (2), ventilation chambeies (10) communicate in proper order and form centers on the air duct of axial annular distribution in iron core (2), the inlet of air duct is established and is used for stretching into air-supply line (6) of motor radiator fan bloies the side, the export of air duct is established and is used for stretching out tuber pipe (7) in the motor housing outside.

2. A stator according to claim 1, characterized in that for the ventilation channel, two adjacent ventilation cavities (10) thereof are connected by a ventilation hole (11), the ventilation hole (11) being open to teeth (3) between two adjacent coils (4).

3. The motor stator according to claim 1, characterized in that the left annular sealing cover plate (8) and the right annular sealing cover plate (9) are detachably connected to the end of the outer skeleton (1) through bolts.

4. A motor stator according to claim 1, characterized in that the port of the air inlet pipe (6) is of a horn-like structure.

5. The motor stator according to claim 1, characterized in that the sealing sleeve (5) is provided with a plurality of tooth-displaying through holes, and the teeth (3) are correspondingly oriented to the tooth-displaying through holes one by one.