CN219107236U

CN219107236U - Motor

Info

Publication number: CN219107236U
Application number: CN202223056347.7U
Authority: CN
Inventors: 方春亮; 吴培羽; 许星跃
Original assignee: Zhongshan Lianxing Electric Appliance Manufacturing Co ltd
Current assignee: Zhongshan Lianxing Electric Appliance Manufacturing Co ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-05-30
Anticipated expiration: 2032-11-17

Abstract

The utility model discloses a motor, which comprises a motor shell, a stator, a coil wound on the stator, a rotor, an output shaft fixedly connected with the rotor and a cooling fan, wherein the cooling fan is arranged on the upper side of the rotor and fixedly connected with the output shaft, is arranged on the inner side of the motor shell, and dissipates heat in the motor through the cooling fan.

Description

Motor

Technical Field

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

Background

For small household appliances such as fans and food processors, which are used at present, a motor is required to drive an impeller or a cutter to work. With the progress of technology and the development of economy, the requirements of people on the household appliances are higher and higher, the volume is required to be smaller, the power is required to be higher, and the performance is also required to be better. A smaller volume and higher power means higher heating, both for the food processor and the fan. Therefore, how to improve the heat dissipation effect of the motor is very important to improve the working effect of the motor.

For the cooking machine, except external fan, there is the coaxial radiator fan of setting in motor outside bottom in many current cooking machines, dispels the heat to the motor through this coaxial radiator fan, the work effect of promotion motor that can be fine. But such a design is relatively difficult to achieve for a fan. Whether or not the fan blade can be selected to achieve the effect, such as in CN202211072138.3, which is an internal fan, but actually only places the motor and the fan in a closed cavity, and actually is an external fan, and the fan and the motor cannot be combined together more organically to improve the working efficiency of the motor.

Therefore, there is a need for a motor that can improve the heat dissipation effect of the motor, reduce the temperature rise of the motor, and improve the working efficiency of the motor by incorporating a heat dissipation fan inside the motor and dissipating heat from the motor by the heat dissipation fan.

Disclosure of Invention

The utility model mainly aims to provide the motor which is internally provided with the cooling fan inside the motor and is used for cooling the motor, so that the cooling effect of the motor is improved, the temperature rise of the motor is reduced, and the working efficiency of the motor is improved.

The utility model provides a motor, which comprises a motor shell, a stator, a coil wound on the stator, a rotor, an output shaft fixedly connected with the rotor and a cooling fan, wherein the cooling fan is arranged on the upper side of the rotor and fixedly connected with the output shaft, is arranged on the inner side of the motor shell and is used for cooling the interior of the motor.

Preferably, the motor housing comprises an upper motor housing and a lower motor housing, and the stator is connected and arranged between the upper motor housing and the lower motor housing in a screw connection manner.

Preferably, a wire through hole is formed in the lower motor housing, and a connecting wire is connected with the coil on the stator through the wire through hole.

Preferably, the cooling fan further comprises a first connecting bearing, wherein the first connecting bearing is arranged above the cooling fan and connected with the output shaft, the cooling fan is limited through the first connecting bearing, and the output shaft rotates more smoothly through the first connecting bearing.

Preferably, the motor further comprises a second connecting bearing, wherein the second connecting bearing is arranged at the bottom of the output shaft, and the output shaft rotates more smoothly through the second connecting bearing.

Preferably, the bottom of the output shaft is provided with a limit groove with a hemispherical cross section, and a connecting bead is arranged in the limit groove, so that the output shaft can rotate more smoothly by arranging the connecting bead between the lower motor shell and the output shaft.

The motor has the beneficial effects that:

1. through set up radiator fan in the motor is inside, can dispel the heat to the motor inside through radiator fan in the in-process that uses the motor.

2. Through setting up first connecting bearing and second connecting bearing, can make output shaft rotate more smoothly.

Drawings

FIG. 1 is a schematic diagram of a motor according to the present utility model;

FIG. 2 is a sectional view of the motor of the present utility model;

fig. 3 is a schematic structural view of a heat dissipating fan of the motor according to the present utility model;

reference numerals in the drawings: 1. an upper motor shell 2, a lower motor shell 3, a stator 4, an output shaft 5, a coil 6 and a cooling fan, 7, a first connecting bearing, 8, a second connecting bearing, 9, connecting beads, 10, connecting wires, 11 and a rotor.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 3, an embodiment of the motor of the present utility model is presented:

the motor comprises a motor shell, a stator 3, a coil 5 wound on the stator 3, a first connecting bearing 7, a second connecting bearing 8, connecting beads 9, a rotor 11, an output shaft 4 fixedly connected with the rotor 11 and a cooling fan 6.

The motor shell comprises an upper motor shell 1 and a lower motor shell 2, and a stator 3 is connected and arranged between the upper motor shell 1 and the lower motor shell 2 in a screw connection mode. The top of the inner side of the motor upper shell is recessed upwards to form a motor upper shell connecting groove, and the bottom of the inner side of the motor lower shell is recessed downwards to form a motor lower shell connecting groove. The motor lower shell 2 is provided with a wire through hole, and a connecting wire 10 is connected with the coil 5 on the stator 3 through the wire through hole. A plurality of heat dissipation holes are arranged on the motor upper shell 1 and the motor lower shell 2.

The rotor 11 sets up on output shaft 4 with output shaft 4 fixed connection, rotor 11 top is provided with the rotor coupling groove, radiator fan 6 sets up in the rotor coupling groove and with output shaft 4 fixed connection, first connecting bearing 7 sets up at radiator fan 6 top and output shaft 4 fixed connection, first connecting bearing 7 one end is connected with radiator fan 6, the other end sets up in the last casing coupling groove of motor, makes output shaft 4 rotate more smoothly through first connecting bearing 7. The second connecting bearing 8 is arranged at the bottom of the output shaft 4, and the output shaft 4 rotates more smoothly through the second connecting bearing 8.

The bottom of the output shaft 4 is provided with a limit groove with a hemispherical cross section, the connecting beads 9 are arranged in the limit groove, and the output shaft 4 can rotate more smoothly by arranging the connecting beads 9 between the motor lower shell connecting groove and the output shaft 4.

By providing the cooling fan 6 inside the motor, heat can be dissipated inside the motor through the cooling fan 6 in the process of using the motor.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. The motor is characterized by comprising a motor shell, a stator, a coil, a rotor, an output shaft and a radiator fan, wherein the coil is wound on the stator, the output shaft is fixedly connected with the rotor, the radiator fan is arranged on the upper side of the rotor and fixedly connected with the output shaft, the radiator fan is arranged on the inner side of the motor shell, and the inside of the motor is radiated through the radiator fan.

2. The motor of claim 1, wherein the motor housing comprises an upper motor housing and a lower motor housing, the stator connection being provided between the upper motor housing and the lower motor housing by means of a screw connection.

3. The motor of claim 2, wherein a wire through hole is provided at the motor lower case, and a connection wire is connected to the coil on the stator through the wire through hole.

4. The motor of claim 2, further comprising a first connecting bearing disposed above the cooling fan and connected to the output shaft, wherein the cooling fan is limited by the first connecting bearing, and the output shaft rotates more smoothly by the first connecting bearing.

5. The motor of claim 2, further comprising a second connecting bearing disposed at the bottom of the output shaft, whereby the output shaft rotates more smoothly.

6. The motor of claim 2, wherein the bottom of the output shaft is provided with a limit groove with a hemispherical cross section, and a connecting bead is arranged in the limit groove.