CN213717729U

CN213717729U - Fixing structure of end cover and motor

Info

Publication number: CN213717729U
Application number: CN202022390671.7U
Authority: CN
Inventors: 邝业朋; 文俊书; 韦岩; 赵万彩
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-16
Anticipated expiration: 2030-10-23

Abstract

The utility model provides a fixed knot of end cover constructs, includes the casing, and the one end of casing is provided with the end cover, is connected through annular connecting piece between end cover and the casing, and the connecting piece cover is established on the end cover, and the body of connecting piece is inserted along the axial to the open end of casing, and is fixed through interference fit between casing, end cover and the connecting piece. The utility model discloses a fixed knot of end cover constructs and the radiating structure of plastic envelope motor has been perfected to the motor, make the radiating efficiency higher, reduce the after-sale problem of motor, the complicated problem of current plastic envelope motor radiating structure technology has been simplified, reduce the cost of labor and realize batch production, the toughness property who has used transition principle and iron metal realizes the combination of cast aluminium end cover and plastic envelope material, the fixed knot who has simplified the end cover of heat dissipation motor constructs, the operation is simpler, be fit for full automatic production more, fin and power module are with heat dissipation silica gel direct contact, strengthen heat dispersion.

Description

Fixing structure of end cover and motor

Technical Field

The utility model belongs to the household electrical appliances production field especially relates to a fixed knot of end cover constructs and motor.

Background

The motor is a carrier driving mechanical equipment to rotate, and along with the development of the motor industry, the plastic package motor becomes a mainstream motor. However, the plastic package motor has relatively poor heat dissipation performance, so the plastic package motor needs to have a certain heat dissipation structure. Most of the existing heat dissipation structures are that a heat dissipation fin is arranged on an iron end cover to enhance the heat dissipation of the motor. The steps of installing the radiating fins (including coating heat-conducting glue, sticking the radiating fins, fixing the radiating fins by screws and the like) are more, and manpower and material resources are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed knot of end cover constructs and motor to solve the unable cooperation of current motor end cover and plastic envelope material, heat radiation structure is complicated, the technical problem of technology complicacy.

In order to achieve the above object, the utility model discloses a fixed knot of end cover constructs and specific technical scheme of motor as follows:

the utility model provides a fixed knot of end cover constructs, includes the casing, and the one end of casing is provided with the end cover, is connected through annular connecting piece between end cover and the casing, and the connecting piece cover is established on the end cover, and the body of connecting piece is inserted along the axial to the open end of casing, and is fixed through interference fit between casing, end cover and the connecting piece.

Furthermore, an annular flange protruding in the axial direction is arranged on the edge of one end of the shell, an annular insertion groove is formed in the end face of the connecting piece, the annular flange is inserted into the insertion groove, and the annular flange is in interference fit with the insertion groove.

Furthermore, a convex block is arranged on one end face of the end cover, and the connecting piece is sleeved on the side wall of the convex block.

Furthermore, a plurality of sunken fixing grooves are formed in the side wall of the protruding block, a plurality of protruding fixing blocks are arranged on the side wall of the inner ring of the connecting piece, and the fixing blocks are inserted into the fixing grooves in a one-to-one correspondence mode.

Further, the protruding block is in interference fit with the connecting piece, and the fixing groove is in interference fit with the fixing block.

Further, a power module is arranged on the lug of the end cover, and the power module is bonded with the lug through heat dissipation silica gel.

Furthermore, the end surface of the end cover, which is far away from the shell, is provided with a plurality of integrally formed radiating fins.

Further, the connecting piece is a sealing ring, and the sealing ring is made of steel.

The utility model also provides a motor, fixed knot including foretell end cover constructs.

The utility model discloses a fixed knot of end cover constructs and motor has following advantage: the heat dissipation structure of the plastic package motor is improved, the heat dissipation efficiency is higher, the after-sale problem of the motor is reduced, the complex process problem of the heat dissipation structure of the existing plastic package motor is simplified, the labor cost is reduced, the batch production is realized, the combination of the cast aluminum end cover and the plastic package material is realized by applying the transition principle and the toughness performance of iron metal, the fixing structure of the end cover of the heat dissipation motor is simplified, the operation is simpler, the full-automatic production is more suitable, the heat dissipation plate is in direct contact with the heat dissipation silica gel for the power module, and the heat dissipation performance is enhanced.

Drawings

Fig. 1 is a schematic view of the overall structure of the motor of the present invention;

fig. 2 is a schematic view of the structure of the end cover heat dissipation fin of the present invention;

fig. 3 is a schematic structural view of the sealing ring of the present invention;

fig. 4 is a schematic structural view of a second insertion portion of the end cap of the present invention;

FIG. 5 is a schematic view of the housing structure of the present invention;

FIG. 6 is a schematic view of the assembly structure of the end cap and the housing of the present invention;

fig. 7 is a schematic view of the exploded structure of the end cap and the housing of the present invention.

The notation in the figure is: 1. a housing; 2. a stator; 3. a rotor; 4. a motor shaft; 5. a seal ring; 6. an end cap; 7. a first insertion part; 8. inserting grooves; 9. a second insertion part; 10. fixing grooves; 11. a fixed block; 12. heat dissipation fins; 13. a power module; 14. and (4) heat dissipation silica gel.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the fixing structure and the motor of the present invention are described in detail below with reference to the accompanying drawings.

The utility model discloses a fixed knot of end cover constructs and motor includes casing 1, and the inside of casing 1 is provided with stator 2, and the center cover of stator 2 is equipped with rotor 3, and the bearing room that is used for placing the bearing is offered at the center of casing 1, and the motor shaft hole has been seted up at the center of bearing room, and a tip of casing 1 cooperates with end cover 6 through sealing washer 5 and is connected, and the bearing room that is used for placing the bearing is offered at the center of end cover 6, and motor shaft 4 wears to overlap downthehole at the center and the motor shaft of two bearings.

Have along the bellied cyclic annular flange of axial on the top edge of encircleing casing 1 one end, cyclic annular flange is first grafting portion 7, and first grafting portion 7 and casing 1 are integrated into one piece, set up annular inserting groove 8 on encircleing the terminal surface of sealing washer 5, and inserting groove 8 is the logical groove that the axial link up sealing washer 5, and casing 1's first grafting portion 7 inserts in sealing washer 5's inserting groove 8 and compresses tightly, is interference fit between first grafting portion 7 and the inserting groove 8.

One end face of the end cover 6 is provided with a raised circular convex block which is a second inserting part 9, the second inserting part 9 and the end cover 6 are integrally formed, the side wall of the second inserting part 9 is provided with a plurality of fixing grooves 10 which are recessed towards the radial direction of the end cover 6, preferably, the number of the fixing grooves 10 is four, the arc length between every two adjacent fixing grooves 10 is equal, the side wall of the inner ring of the sealing ring 5 is provided with a plurality of fixing blocks 11, the fixing blocks 11 and the sealing ring 5 are integrally formed, the fixing blocks 11 are in full-equal correspondence with the fixing grooves 10 in shape and size, the number matching of the fixing blocks 11 and the fixing grooves 10 is equal, the second inserting part 9 of the end cover 6 is inserted into the inner ring of the sealing ring 5 and is pressed, the fixing blocks 11 of the sealing ring 5 are correspondingly clamped into the fixing grooves 10 of the second inserting part 9 and are pressed, the second inserting part 9 and the sealing ring 5 are in interference, the fixing grooves 10 and the fixing blocks 11 limit the sealing ring 5 and prevent the sealing ring 5 from rotating to generate displacement.

The bearing chamber of the end cover 6 is arranged at the center of the second inserting part 9, the end face of the second inserting part 9 is fixedly provided with a power module 13 of a PCB, the second inserting part 9 and the power module 13 are bonded through heat dissipation silica gel 14, so that the heat conduction efficiency is increased, the power module is prevented from being burnt out, the other end face, away from the casing 1, of the end cover 6 is provided with a plurality of heat dissipation fins 12 which are integrally formed with the casing 1, and the heat dissipation fins 12 are arranged perpendicular to the end face of the end cover 6.

The sealing ring 5 is made of metal, preferably steel, and plastic package is adopted between the stator and the casing 1, plastic package is adopted between the sealing ring 5 and the casing 1, or plastic package is adopted among the casing 1, the stator and the sealing ring 5 as a whole.

The technical scheme is not only used for heat dissipation of the motor end cover, but also can be used for corresponding cover-closing type products, and the related heat dissipation structure can be pushed to be used, so that the safety and the reliability of the heat dissipation structure are ensured, and the marketization quality requirements of the products are ensured.

The utility model discloses a fixed knot of end cover constructs and the radiating structure of plastic envelope motor has been perfected to the motor, make the radiating efficiency higher, reduce the after-sale problem of motor, the complicated problem of current plastic envelope motor radiating structure technology has been simplified, reduce the cost of labor and realize batch production, the toughness property who has used transition principle and iron metal realizes the combination of cast aluminium end cover and plastic envelope material, the fixed knot who has simplified the end cover of heat dissipation motor constructs, the operation is simpler, be fit for full automatic production more, fin and power module are with heat dissipation silica gel direct contact, heat dispersion has been strengthened.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. The utility model provides a fixed knot of end cover constructs, its characterized in that, includes casing (1), and the one end of casing (1) is provided with end cover (6), is connected through annular connecting piece between end cover (6) and casing (1), and the connecting piece cover is established on end cover (6), and the body of connecting piece is inserted along the axial to the open end of casing (1), and casing (1), end cover (6) and connecting piece are fixed through interference fit.

2. The fixing structure of the end cover according to claim 1, wherein an annular flange protruding in the axial direction is provided on the edge of one end of the housing (1), an annular insertion groove (8) is provided on the end surface of the connecting member, the annular flange is inserted into the insertion groove (8), and the annular flange is in interference fit with the insertion groove (8).

3. The fixing structure of the end cover according to claim 1, wherein the end cover (6) has a projection on an end surface, and the connecting member is fitted over a side wall of the projection.

4. The fixing structure of the end cap according to claim 3, wherein a plurality of concave fixing grooves (10) are formed on the side wall of the projection, a plurality of convex fixing blocks (11) are formed on the side wall of the inner ring of the connecting member, and the fixing blocks (11) are inserted into the fixing grooves (10) in a one-to-one correspondence manner.

5. The fixing structure of the end cap according to claim 4, wherein the protrusion is in interference fit with the connector, and the fixing groove (10) is in interference fit with the fixing block (11).

6. The fixing structure of the end cover according to claim 3, characterized in that a power module (13) is arranged on the lug of the end cover (6), and the power module (13) and the lug are bonded through a heat-dissipating silica gel (14).

7. The fixing structure of the end cover according to claim 1, characterized in that the end cover (6) has a plurality of integrally formed heat dissipating fins (12) on the end surface away from the casing (1).

8. The fixing structure of the end cap according to claim 1, wherein the connecting member is a sealing ring (5), and the sealing ring (5) is made of steel.

9. An electric machine characterized by: a fastening arrangement comprising an end cap according to any one of claims 1 to 8.